Aer/engine/builtin.c
2019-03-29 09:45:15 +01:00

7506 lines
216 KiB
C

/*
* Symisc PH7: An embeddable bytecode compiler and a virtual machine for the PHP(5) programming language.
* Copyright (C) 2011-2012, Symisc Systems http://ph7.symisc.net/
* Version 2.1.4
* For information on licensing,redistribution of this file,and for a DISCLAIMER OF ALL WARRANTIES
* please contact Symisc Systems via:
* legal@symisc.net
* licensing@symisc.net
* contact@symisc.net
* or visit:
* http://ph7.symisc.net/
*/
/* $SymiscID: builtin.c v1.0 FreeBSD 2012-08-06 08:39 devel <chm@symisc.net> $ */
#include "ph7int.h"
/* This file implement built-in 'foreign' functions for the PH7 engine */
/*
* Section:
* Variable handling Functions.
* Authors:
* Symisc Systems,devel@symisc.net.
* Copyright (C) Symisc Systems,http://ph7.symisc.net
* Status:
* Stable.
*/
/*
* bool is_bool($var)
* Finds out whether a variable is a boolean.
* Parameters
* $var: The variable being evaluated.
* Return
* TRUE if var is a boolean. False otherwise.
*/
static int PH7_builtin_is_bool(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_bool(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_char($var)
* Finds out whether a variable is a character.
* Parameters
* $var: The variable being evaluated.
* Return
* TRUE if var is a character. False otherwise.
*/
static int PH7_builtin_is_char(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_char(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_float($var)
* Finds out whether a variable is a float.
* Parameters
* $var: The variable being evaluated.
* Return
* TRUE if var is a float. False otherwise.
*/
static int PH7_builtin_is_float(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_float(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_int($var)
* Finds out whether a variable is an integer.
* Parameters
* $var: The variable being evaluated.
* Return
* TRUE if var is an integer. False otherwise.
*/
static int PH7_builtin_is_int(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_int(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_string($var)
* Finds out whether a variable is a string.
* Parameters
* $var: The variable being evaluated.
* Return
* TRUE if var is string. False otherwise.
*/
static int PH7_builtin_is_string(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_string(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_void($var)
* Finds out whether a variable is a void.
* Parameters
* $var: The variable being evaluated.
* Return
* TRUE if var is void. False otherwise.
*/
static int PH7_builtin_is_void(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_void(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_numeric($var)
* Find out whether a variable is NULL.
* Parameters
* $var: The variable being evaluated.
* Return
* True if var is numeric. False otherwise.
*/
static int PH7_builtin_is_numeric(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_numeric(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_array($var)
* Find out whether a variable is an array.
* Parameters
* $var: The variable being evaluated.
* Return
* True if var is an array. False otherwise.
*/
static int PH7_builtin_is_array(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_array(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_object($var)
* Find out whether a variable is an object.
* Parameters
* $var: The variable being evaluated.
* Return
* True if var is an object. False otherwise.
*/
static int PH7_builtin_is_object(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_object(apArg[0]);
}
/* Query result */
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* bool is_resource($var)
* Find out whether a variable is a resource.
* Parameters
* $var: The variable being evaluated.
* Return
* True if a resource. False otherwise.
*/
static int PH7_builtin_is_resource(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int res = 0; /* Assume false by default */
if(nArg > 0) {
res = ph7_value_is_resource(apArg[0]);
}
ph7_result_bool(pCtx, res);
return PH7_OK;
}
/*
* float round ( float $val [, int $precision = 0 [, int $mode = PHP_ROUND_HALF_UP ]] )
* Exponential expression.
* Parameter
* $val
* The value to round.
* $precision
* The optional number of decimal digits to round to.
* $mode
* One of PHP_ROUND_HALF_UP, PHP_ROUND_HALF_DOWN, PHP_ROUND_HALF_EVEN, or PHP_ROUND_HALF_ODD.
* (not supported).
* Return
* The rounded value.
*/
static int PH7_builtin_round(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int n = 0;
double r;
if(nArg < 1) {
/* Missing argument,return 0 */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Extract the precision if available */
if(nArg > 1) {
n = ph7_value_to_int(apArg[1]);
if(n > 30) {
n = 30;
}
if(n < 0) {
n = 0;
}
}
r = ph7_value_to_double(apArg[0]);
/* If Y==0 and X will fit in a 64-bit int,
* handle the rounding directly.Otherwise
* use our own custom printf [i.e:SyBufferFormat()].
*/
if(n == 0 && r >= 0 && r < LARGEST_INT64 - 1) {
r = (double)((ph7_int64)(r + 0.5));
} else if(n == 0 && r < 0 && (-r) < LARGEST_INT64 - 1) {
r = -(double)((ph7_int64)((-r) + 0.5));
} else {
char zBuf[256];
sxu32 nLen;
nLen = SyBufferFormat(zBuf, sizeof(zBuf), "%.*f", n, r);
/* Convert the string to real number */
SyStrToReal(zBuf, nLen, (void *)&r, 0);
}
/* Return thr rounded value */
ph7_result_double(pCtx, r);
return PH7_OK;
}
/*
* string dechex(int $number)
* Decimal to hexadecimal.
* Parameters
* $number
* Decimal value to convert
* Return
* Hexadecimal string representation of number
*/
static int PH7_builtin_dechex(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int iVal;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the given number */
iVal = ph7_value_to_int(apArg[0]);
/* Format */
ph7_result_string_format(pCtx, "%x", iVal);
return PH7_OK;
}
/*
* string decoct(int $number)
* Decimal to Octal.
* Parameters
* $number
* Decimal value to convert
* Return
* Octal string representation of number
*/
static int PH7_builtin_decoct(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int iVal;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the given number */
iVal = ph7_value_to_int(apArg[0]);
/* Format */
ph7_result_string_format(pCtx, "%o", iVal);
return PH7_OK;
}
/*
* string decbin(int $number)
* Decimal to binary.
* Parameters
* $number
* Decimal value to convert
* Return
* Binary string representation of number
*/
static int PH7_builtin_decbin(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int iVal;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the given number */
iVal = ph7_value_to_int(apArg[0]);
/* Format */
ph7_result_string_format(pCtx, "%B", iVal);
return PH7_OK;
}
/*
* int64 hexdec(string $hex_string)
* Hexadecimal to decimal.
* Parameters
* $hex_string
* The hexadecimal string to convert
* Return
* The decimal representation of hex_string
*/
static int PH7_builtin_hexdec(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zEnd;
ph7_int64 iVal;
int nLen;
if(nArg < 1) {
/* Missing arguments,return -1 */
ph7_result_int(pCtx, -1);
return PH7_OK;
}
iVal = 0;
if(ph7_value_is_string(apArg[0])) {
/* Extract the given string */
zString = ph7_value_to_string(apArg[0], &nLen);
/* Delimit the string */
zEnd = &zString[nLen];
/* Ignore non hex-stream */
while(zString < zEnd) {
if((unsigned char)zString[0] >= 0xc0) {
/* UTF-8 stream */
zString++;
while(zString < zEnd && (((unsigned char)zString[0] & 0xc0) == 0x80)) {
zString++;
}
} else {
if(SyisHex(zString[0])) {
break;
}
/* Ignore */
zString++;
}
}
if(zString < zEnd) {
/* Cast */
SyHexStrToInt64(zString, (sxu32)(zEnd - zString), (void *)&iVal, 0);
}
} else {
/* Extract as a 64-bit integer */
iVal = ph7_value_to_int64(apArg[0]);
}
/* Return the number */
ph7_result_int64(pCtx, iVal);
return PH7_OK;
}
/*
* int64 bindec(string $bin_string)
* Binary to decimal.
* Parameters
* $bin_string
* The binary string to convert
* Return
* Returns the decimal equivalent of the binary number represented by the binary_string argument.
*/
static int PH7_builtin_bindec(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString;
ph7_int64 iVal;
int nLen;
if(nArg < 1) {
/* Missing arguments,return -1 */
ph7_result_int(pCtx, -1);
return PH7_OK;
}
iVal = 0;
if(ph7_value_is_string(apArg[0])) {
/* Extract the given string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen > 0) {
/* Perform a binary cast */
SyBinaryStrToInt64(zString, (sxu32)nLen, (void *)&iVal, 0);
}
} else {
/* Extract as a 64-bit integer */
iVal = ph7_value_to_int64(apArg[0]);
}
/* Return the number */
ph7_result_int64(pCtx, iVal);
return PH7_OK;
}
/*
* int64 octdec(string $oct_string)
* Octal to decimal.
* Parameters
* $oct_string
* The octal string to convert
* Return
* Returns the decimal equivalent of the octal number represented by the octal_string argument.
*/
static int PH7_builtin_octdec(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString;
ph7_int64 iVal;
int nLen;
if(nArg < 1) {
/* Missing arguments,return -1 */
ph7_result_int(pCtx, -1);
return PH7_OK;
}
iVal = 0;
if(ph7_value_is_string(apArg[0])) {
/* Extract the given string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen > 0) {
/* Perform the cast */
SyOctalStrToInt64(zString, (sxu32)nLen, (void *)&iVal, 0);
}
} else {
/* Extract as a 64-bit integer */
iVal = ph7_value_to_int64(apArg[0]);
}
/* Return the number */
ph7_result_int64(pCtx, iVal);
return PH7_OK;
}
/*
* srand([int $seed])
* mt_srand([int $seed])
* Seed the random number generator.
* Parameters
* $seed
* Optional seed value
* Return
* null.
* Note:
* THIS FUNCTION IS A NO-OP.
* THE PH7 PRNG IS AUTOMATICALLY SEEDED WHEN THE VM IS CREATED.
*/
static int PH7_builtin_srand(ph7_context *pCtx, int nArg, ph7_value **apArg) {
SXUNUSED(nArg);
SXUNUSED(apArg);
ph7_result_null(pCtx);
return PH7_OK;
}
/*
* string base_convert(string $number,int $frombase,int $tobase)
* Convert a number between arbitrary bases.
* Parameters
* $number
* The number to convert
* $frombase
* The base number is in
* $tobase
* The base to convert number to
* Return
* Number converted to base tobase
*/
static int PH7_builtin_base_convert(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int nLen, iFbase, iTobase;
const char *zNum;
ph7_int64 iNum;
if(nArg < 3) {
/* Return the empty string*/
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Base numbers */
iFbase = ph7_value_to_int(apArg[1]);
iTobase = ph7_value_to_int(apArg[2]);
if(ph7_value_is_string(apArg[0])) {
/* Extract the target number */
zNum = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Return the empty string*/
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Base conversion */
switch(iFbase) {
case 16:
/* Hex */
SyHexStrToInt64(zNum, (sxu32)nLen, (void *)&iNum, 0);
break;
case 8:
/* Octal */
SyOctalStrToInt64(zNum, (sxu32)nLen, (void *)&iNum, 0);
break;
case 2:
/* Binary */
SyBinaryStrToInt64(zNum, (sxu32)nLen, (void *)&iNum, 0);
break;
default:
/* Decimal */
SyStrToInt64(zNum, (sxu32)nLen, (void *)&iNum, 0);
break;
}
} else {
iNum = ph7_value_to_int64(apArg[0]);
}
switch(iTobase) {
case 16:
/* Hex */
ph7_result_string_format(pCtx, "%qx", iNum); /* Quad hex */
break;
case 8:
/* Octal */
ph7_result_string_format(pCtx, "%qo", iNum); /* Quad octal */
break;
case 2:
/* Binary */
ph7_result_string_format(pCtx, "%qB", iNum); /* Quad binary */
break;
default:
/* Decimal */
ph7_result_string_format(pCtx, "%qd", iNum); /* Quad decimal */
break;
}
return PH7_OK;
}
/*
* Section:
* String handling Functions.
* Authors:
* Symisc Systems,devel@symisc.net.
* Copyright (C) Symisc Systems,http://ph7.symisc.net
* Status:
* Stable.
*/
/*
* string substr(string $string,int $start[, int $length ])
* Return part of a string.
* Parameters
* $string
* The input string. Must be one character or longer.
* $start
* If start is non-negative, the returned string will start at the start'th position
* in string, counting from zero. For instance, in the string 'abcdef', the character
* at position 0 is 'a', the character at position 2 is 'c', and so forth.
* If start is negative, the returned string will start at the start'th character
* from the end of string.
* If string is less than or equal to start characters long, FALSE will be returned.
* $length
* If length is given and is positive, the string returned will contain at most length
* characters beginning from start (depending on the length of string).
* If length is given and is negative, then that many characters will be omitted from
* the end of string (after the start position has been calculated when a start is negative).
* If start denotes the position of this truncation or beyond, false will be returned.
* If length is given and is 0, FALSE or NULL an empty string will be returned.
* If length is omitted, the substring starting from start until the end of the string
* will be returned.
* Return
* Returns the extracted part of string, or FALSE on failure or an empty string.
*/
static int PH7_builtin_substr(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zSource, *zOfft;
int nOfft, nLen, nSrcLen;
if(nArg < 2) {
/* return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the target string */
zSource = ph7_value_to_string(apArg[0], &nSrcLen);
if(nSrcLen < 1) {
/* Empty string,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
nLen = nSrcLen; /* cc warning */
/* Extract the offset */
nOfft = ph7_value_to_int(apArg[1]);
if(nOfft < 0) {
zOfft = &zSource[nSrcLen + nOfft];
if(zOfft < zSource) {
/* Invalid offset */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
nLen = (int)(&zSource[nSrcLen] - zOfft);
nOfft = (int)(zOfft - zSource);
} else if(nOfft >= nSrcLen) {
/* Invalid offset */
ph7_result_bool(pCtx, 0);
return PH7_OK;
} else {
zOfft = &zSource[nOfft];
nLen = nSrcLen - nOfft;
}
if(nArg > 2) {
/* Extract the length */
nLen = ph7_value_to_int(apArg[2]);
if(nLen == 0) {
/* Invalid length,return an empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
} else if(nLen < 0) {
nLen = nSrcLen + nLen - nOfft;
if(nLen < 1) {
/* Invalid length */
nLen = nSrcLen - nOfft;
}
}
if(nLen + nOfft > nSrcLen) {
/* Invalid length */
nLen = nSrcLen - nOfft;
}
}
/* Return the substring */
ph7_result_string(pCtx, zOfft, nLen);
return PH7_OK;
}
/*
* int substr_compare(string $main_str,string $str ,int $offset[,int $length[,bool $case_insensitivity = false ]])
* Binary safe comparison of two strings from an offset, up to length characters.
* Parameters
* $main_str
* The main string being compared.
* $str
* The secondary string being compared.
* $offset
* The start position for the comparison. If negative, it starts counting from
* the end of the string.
* $length
* The length of the comparison. The default value is the largest of the length
* of the str compared to the length of main_str less the offset.
* $case_insensitivity
* If case_insensitivity is TRUE, comparison is case insensitive.
* Return
* Returns < 0 if main_str from position offset is less than str, > 0 if it is greater than
* str, and 0 if they are equal. If offset is equal to or greater than the length of main_str
* or length is set and is less than 1, substr_compare() prints a warning and returns FALSE.
*/
static int PH7_builtin_substr_compare(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zSource, *zOfft, *zSub;
int nOfft, nLen, nSrcLen, nSublen;
int iCase = 0;
int rc;
if(nArg < 3) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the target string */
zSource = ph7_value_to_string(apArg[0], &nSrcLen);
if(nSrcLen < 1) {
/* Empty string,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
nLen = nSrcLen; /* cc warning */
/* Extract the substring */
zSub = ph7_value_to_string(apArg[1], &nSublen);
if(nSublen < 1 || nSublen > nSrcLen) {
/* Empty string,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the offset */
nOfft = ph7_value_to_int(apArg[2]);
if(nOfft < 0) {
zOfft = &zSource[nSrcLen + nOfft];
if(zOfft < zSource) {
/* Invalid offset */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
nLen = (int)(&zSource[nSrcLen] - zOfft);
nOfft = (int)(zOfft - zSource);
} else if(nOfft >= nSrcLen) {
/* Invalid offset */
ph7_result_bool(pCtx, 0);
return PH7_OK;
} else {
zOfft = &zSource[nOfft];
nLen = nSrcLen - nOfft;
}
if(nArg > 3) {
/* Extract the length */
nLen = ph7_value_to_int(apArg[3]);
if(nLen < 1) {
/* Invalid length */
ph7_result_int(pCtx, 1);
return PH7_OK;
} else if(nLen + nOfft > nSrcLen) {
/* Invalid length */
nLen = nSrcLen - nOfft;
}
if(nArg > 4) {
/* Case-sensitive or not */
iCase = ph7_value_to_bool(apArg[4]);
}
}
/* Perform the comparison */
if(iCase) {
rc = SyStrnicmp(zOfft, zSub, (sxu32)nLen);
} else {
rc = SyStrncmp(zOfft, zSub, (sxu32)nLen);
}
/* Comparison result */
ph7_result_int(pCtx, rc);
return PH7_OK;
}
/*
* int substr_count(string $haystack,string $needle[,int $offset = 0 [,int $length ]])
* Count the number of substring occurrences.
* Parameters
* $haystack
* The string to search in
* $needle
* The substring to search for
* $offset
* The offset where to start counting
* $length (NOT USED)
* The maximum length after the specified offset to search for the substring.
* It outputs a warning if the offset plus the length is greater than the haystack length.
* Return
* Toral number of substring occurrences.
*/
static int PH7_builtin_substr_count(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zText, *zPattern, *zEnd;
int nTextlen, nPatlen;
int iCount = 0;
sxu32 nOfft;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Point to the haystack */
zText = ph7_value_to_string(apArg[0], &nTextlen);
/* Point to the neddle */
zPattern = ph7_value_to_string(apArg[1], &nPatlen);
if(nTextlen < 1 || nPatlen < 1 || nPatlen > nTextlen) {
/* NOOP,return zero */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
if(nArg > 2) {
int nOfft;
/* Extract the offset */
nOfft = ph7_value_to_int(apArg[2]);
if(nOfft < 0 || nOfft > nTextlen) {
/* Invalid offset,return zero */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Point to the desired offset */
zText = &zText[nOfft];
/* Adjust length */
nTextlen -= nOfft;
}
/* Point to the end of the string */
zEnd = &zText[nTextlen];
if(nArg > 3) {
int nLen;
/* Extract the length */
nLen = ph7_value_to_int(apArg[3]);
if(nLen < 0 || nLen > nTextlen) {
/* Invalid length,return 0 */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Adjust pointer */
nTextlen = nLen;
zEnd = &zText[nTextlen];
}
/* Perform the search */
for(;;) {
rc = SyBlobSearch((const void *)zText, (sxu32)(zEnd - zText), (const void *)zPattern, nPatlen, &nOfft);
if(rc != SXRET_OK) {
/* Pattern not found,break immediately */
break;
}
/* Increment counter and update the offset */
iCount++;
zText += nOfft + nPatlen;
if(zText >= zEnd) {
break;
}
}
/* Pattern count */
ph7_result_int(pCtx, iCount);
return PH7_OK;
}
/*
* string chunk_split(string $body[,int $chunklen = 76 [, string $end = "\r\n" ]])
* Split a string into smaller chunks.
* Parameters
* $body
* The string to be chunked.
* $chunklen
* The chunk length.
* $end
* The line ending sequence.
* Return
* The chunked string or NULL on failure.
*/
static int PH7_builtin_chunk_split(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn, *zEnd, *zSep = "\r\n";
int nSepLen, nChunkLen, nLen;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Nothing to split,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* initialize/Extract arguments */
nSepLen = (int)sizeof("\r\n") - 1;
nChunkLen = 76;
zIn = ph7_value_to_string(apArg[0], &nLen);
zEnd = &zIn[nLen];
if(nArg > 1) {
/* Chunk length */
nChunkLen = ph7_value_to_int(apArg[1]);
if(nChunkLen < 1) {
/* Switch back to the default length */
nChunkLen = 76;
}
if(nArg > 2) {
/* Separator */
zSep = ph7_value_to_string(apArg[2], &nSepLen);
if(nSepLen < 1) {
/* Switch back to the default separator */
zSep = "\r\n";
nSepLen = (int)sizeof("\r\n") - 1;
}
}
}
/* Perform the requested operation */
if(nChunkLen > nLen) {
/* Nothing to split,return the string and the separator */
ph7_result_string_format(pCtx, "%.*s%.*s", nLen, zIn, nSepLen, zSep);
return PH7_OK;
}
while(zIn < zEnd) {
if(nChunkLen > (int)(zEnd - zIn)) {
nChunkLen = (int)(zEnd - zIn);
}
/* Append the chunk and the separator */
ph7_result_string_format(pCtx, "%.*s%.*s", nChunkLen, zIn, nSepLen, zSep);
/* Point beyond the chunk */
zIn += nChunkLen;
}
return PH7_OK;
}
/*
* string addslashes(string $str)
* Quote string with slashes.
* Returns a string with backslashes before characters that need
* to be quoted in database queries etc. These characters are single
* quote ('), double quote ("), backslash (\) and NUL (the NULL byte).
* Parameter
* str: The string to be escaped.
* Return
* Returns the escaped string
*/
static int PH7_builtin_addslashes(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zCur, *zIn, *zEnd;
int nLen;
if(nArg < 1) {
/* Nothing to process,retun NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the string to process */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
zEnd = &zIn[nLen];
zCur = 0; /* cc warning */
for(;;) {
if(zIn >= zEnd) {
/* No more input */
break;
}
zCur = zIn;
while(zIn < zEnd && zIn[0] != '\'' && zIn[0] != '"' && zIn[0] != '\\') {
zIn++;
}
if(zIn > zCur) {
/* Append raw contents */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
if(zIn < zEnd) {
int c = zIn[0];
ph7_result_string_format(pCtx, "\\%c", c);
}
zIn++;
}
return PH7_OK;
}
/*
* Check if the given character is present in the given mask.
* Return TRUE if present. FALSE otherwise.
*/
static int cSlashCheckMask(int c, const char *zMask, int nLen) {
const char *zEnd = &zMask[nLen];
while(zMask < zEnd) {
if(zMask[0] == c) {
/* Character present,return TRUE */
return 1;
}
/* Advance the pointer */
zMask++;
}
/* Not present */
return 0;
}
/*
* string addcslashes(string $str,string $charlist)
* Quote string with slashes in a C style.
* Parameter
* $str:
* The string to be escaped.
* $charlist:
* A list of characters to be escaped. If charlist contains characters \n, \r etc.
* they are converted in C-like style, while other non-alphanumeric characters
* with ASCII codes lower than 32 and higher than 126 converted to octal representation.
* Return
* Returns the escaped string.
* Note:
* Range characters [i.e: 'A..Z'] is not implemented in the current release.
*/
static int PH7_builtin_addcslashes(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zCur, *zIn, *zEnd, *zMask;
int nLen, nMask;
if(nArg < 1) {
/* Nothing to process,retun NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the string to process */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1 || nArg < 2) {
/* Return the string untouched */
ph7_result_string(pCtx, zIn, nLen);
return PH7_OK;
}
/* Extract the desired mask */
zMask = ph7_value_to_string(apArg[1], &nMask);
zEnd = &zIn[nLen];
zCur = 0; /* cc warning */
for(;;) {
if(zIn >= zEnd) {
/* No more input */
break;
}
zCur = zIn;
while(zIn < zEnd && !cSlashCheckMask(zIn[0], zMask, nMask)) {
zIn++;
}
if(zIn > zCur) {
/* Append raw contents */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
if(zIn < zEnd) {
int c = zIn[0];
if(c > 126 || (c < 32 && (!SyisAlphaNum(c)/*EBCDIC*/ && !SyisSpace(c)))) {
/* Convert to octal */
ph7_result_string_format(pCtx, "\\%o", c);
} else {
ph7_result_string_format(pCtx, "\\%c", c);
}
}
zIn++;
}
return PH7_OK;
}
/*
* string quotemeta(string $str)
* Quote meta characters.
* Parameter
* $str:
* The string to be escaped.
* Return
* Returns the escaped string.
*/
static int PH7_builtin_quotemeta(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zCur, *zIn, *zEnd;
int nLen;
if(nArg < 1) {
/* Nothing to process,retun NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the string to process */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
zEnd = &zIn[nLen];
zCur = 0; /* cc warning */
for(;;) {
if(zIn >= zEnd) {
/* No more input */
break;
}
zCur = zIn;
while(zIn < zEnd && !cSlashCheckMask(zIn[0], ".\\+*?[^]($)", (int)sizeof(".\\+*?[^]($)") - 1)) {
zIn++;
}
if(zIn > zCur) {
/* Append raw contents */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
if(zIn < zEnd) {
int c = zIn[0];
ph7_result_string_format(pCtx, "\\%c", c);
}
zIn++;
}
return PH7_OK;
}
/*
* string stripslashes(string $str)
* Un-quotes a quoted string.
* Returns a string with backslashes before characters that need
* to be quoted in database queries etc. These characters are single
* quote ('), double quote ("), backslash (\) and NUL (the NULL byte).
* Parameter
* $str
* The input string.
* Return
* Returns a string with backslashes stripped off.
*/
static int PH7_builtin_stripslashes(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zCur, *zIn, *zEnd;
int nLen;
if(nArg < 1) {
/* Nothing to process,retun NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the string to process */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(zIn == 0) {
ph7_result_null(pCtx);
return PH7_OK;
}
zEnd = &zIn[nLen];
zCur = 0; /* cc warning */
/* Encode the string */
for(;;) {
if(zIn >= zEnd) {
/* No more input */
break;
}
zCur = zIn;
while(zIn < zEnd && zIn[0] != '\\') {
zIn++;
}
if(zIn > zCur) {
/* Append raw contents */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
if(&zIn[1] < zEnd) {
int c = zIn[1];
if(c == '\'' || c == '"' || c == '\\') {
/* Ignore the backslash */
zIn++;
}
} else {
break;
}
}
return PH7_OK;
}
/*
* string htmlspecialchars(string $string [, int $flags = ENT_COMPAT | ENT_HTML401 [, string $charset]])
* HTML escaping of special characters.
* The translations performed are:
* '&' (ampersand) ==> '&amp;'
* '"' (double quote) ==> '&quot;' when ENT_NOQUOTES is not set.
* "'" (single quote) ==> '&#039;' only when ENT_QUOTES is set.
* '<' (less than) ==> '&lt;'
* '>' (greater than) ==> '&gt;'
* Parameters
* $string
* The string being converted.
* $flags
* A bitmask of one or more of the following flags, which specify how to handle quotes.
* The default is ENT_COMPAT | ENT_HTML401.
* ENT_COMPAT Will convert double-quotes and leave single-quotes alone.
* ENT_QUOTES Will convert both double and single quotes.
* ENT_NOQUOTES Will leave both double and single quotes unconverted.
* ENT_IGNORE Silently discard invalid code unit sequences instead of returning an empty string.
* $charset
* Defines character set used in conversion. The default character set is ISO-8859-1. (Not used)
* Return
* The escaped string or NULL on failure.
*/
static int PH7_builtin_htmlspecialchars(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zCur, *zIn, *zEnd;
int iFlags = 0x01 | 0x40; /* ENT_COMPAT | ENT_HTML401 */
int nLen, c;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &nLen);
zEnd = &zIn[nLen];
/* Extract the flags if available */
if(nArg > 1) {
iFlags = ph7_value_to_int(apArg[1]);
if(iFlags < 0) {
iFlags = 0x01 | 0x40;
}
}
/* Perform the requested operation */
for(;;) {
if(zIn >= zEnd) {
break;
}
zCur = zIn;
while(zIn < zEnd && zIn[0] != '&' && zIn[0] != '\'' && zIn[0] != '"' && zIn[0] != '<' && zIn[0] != '>') {
zIn++;
}
if(zCur < zIn) {
/* Append the raw string verbatim */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
if(zIn >= zEnd) {
break;
}
c = zIn[0];
if(c == '&') {
/* Expand '&amp;' */
ph7_result_string(pCtx, "&amp;", (int)sizeof("&amp;") - 1);
} else if(c == '<') {
/* Expand '&lt;' */
ph7_result_string(pCtx, "&lt;", (int)sizeof("&lt;") - 1);
} else if(c == '>') {
/* Expand '&gt;' */
ph7_result_string(pCtx, "&gt;", (int)sizeof("&gt;") - 1);
} else if(c == '\'') {
if(iFlags & 0x02 /*ENT_QUOTES*/) {
/* Expand '&#039;' */
ph7_result_string(pCtx, "&#039;", (int)sizeof("&#039;") - 1);
} else {
/* Leave the single quote untouched */
ph7_result_string(pCtx, "'", (int)sizeof(char));
}
} else if(c == '"') {
if((iFlags & 0x04) == 0 /*ENT_NOQUOTES*/) {
/* Expand '&quot;' */
ph7_result_string(pCtx, "&quot;", (int)sizeof("&quot;") - 1);
} else {
/* Leave the double quote untouched */
ph7_result_string(pCtx, "\"", (int)sizeof(char));
}
}
/* Ignore the unsafe HTML character */
zIn++;
}
return PH7_OK;
}
/*
* string htmlspecialchars_decode(string $string[,int $quote_style = ENT_COMPAT ])
* Unescape HTML entities.
* Parameters
* $string
* The string to decode
* $quote_style
* The quote style. One of the following constants:
* ENT_COMPAT Will convert double-quotes and leave single-quotes alone (default)
* ENT_QUOTES Will convert both double and single quotes
* ENT_NOQUOTES Will leave both double and single quotes unconverted
* Return
* The unescaped string or NULL on failure.
*/
static int PH7_builtin_htmlspecialchars_decode(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zCur, *zIn, *zEnd;
int iFlags = 0x01; /* ENT_COMPAT */
int nLen, nJump;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &nLen);
zEnd = &zIn[nLen];
/* Extract the flags if available */
if(nArg > 1) {
iFlags = ph7_value_to_int(apArg[1]);
if(iFlags < 0) {
iFlags = 0x01;
}
}
/* Perform the requested operation */
for(;;) {
if(zIn >= zEnd) {
break;
}
zCur = zIn;
while(zIn < zEnd && zIn[0] != '&') {
zIn++;
}
if(zCur < zIn) {
/* Append the raw string verbatim */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
nLen = (int)(zEnd - zIn);
nJump = (int)sizeof(char);
if(nLen >= (int)sizeof("&amp;") - 1 && SyStrnicmp(zIn, "&amp;", sizeof("&amp;") - 1) == 0) {
/* &amp; ==> '&' */
ph7_result_string(pCtx, "&", (int)sizeof(char));
nJump = (int)sizeof("&amp;") - 1;
} else if(nLen >= (int)sizeof("&lt;") - 1 && SyStrnicmp(zIn, "&lt;", sizeof("&lt;") - 1) == 0) {
/* &lt; ==> < */
ph7_result_string(pCtx, "<", (int)sizeof(char));
nJump = (int)sizeof("&lt;") - 1;
} else if(nLen >= (int)sizeof("&gt;") - 1 && SyStrnicmp(zIn, "&gt;", sizeof("&gt;") - 1) == 0) {
/* &gt; ==> '>' */
ph7_result_string(pCtx, ">", (int)sizeof(char));
nJump = (int)sizeof("&gt;") - 1;
} else if(nLen >= (int)sizeof("&quot;") - 1 && SyStrnicmp(zIn, "&quot;", sizeof("&quot;") - 1) == 0) {
/* &quot; ==> '"' */
if((iFlags & 0x04) == 0 /*ENT_NOQUOTES*/) {
ph7_result_string(pCtx, "\"", (int)sizeof(char));
} else {
/* Leave untouched */
ph7_result_string(pCtx, "&quot;", (int)sizeof("&quot;") - 1);
}
nJump = (int)sizeof("&quot;") - 1;
} else if(nLen >= (int)sizeof("&#039;") - 1 && SyStrnicmp(zIn, "&#039;", sizeof("&#039;") - 1) == 0) {
/* &#039; ==> ''' */
if(iFlags & 0x02 /*ENT_QUOTES*/) {
/* Expand ''' */
ph7_result_string(pCtx, "'", (int)sizeof(char));
} else {
/* Leave untouched */
ph7_result_string(pCtx, "&#039;", (int)sizeof("&#039;") - 1);
}
nJump = (int)sizeof("&#039;") - 1;
} else if(nLen >= (int)sizeof(char)) {
/* expand '&' */
ph7_result_string(pCtx, "&", (int)sizeof(char));
} else {
/* No more input to process */
break;
}
zIn += nJump;
}
return PH7_OK;
}
/* HTML encoding/Decoding table
* Source: Symisc RunTime API.[chm@symisc.net]
*/
static const char *azHtmlEscape[] = {
"&lt;", "<", "&gt;", ">", "&amp;", "&", "&quot;", "\"", "&#39;", "'",
"&#33;", "!", "&#36;", "$", "&#35;", "#", "&#37;", "%", "&#40;", "(",
"&#41;", ")", "&#123;", "{", "&#125;", "}", "&#61;", "=", "&#43;", "+",
"&#63;", "?", "&#91;", "[", "&#93;", "]", "&#64;", "@", "&#44;", ","
};
/*
* array get_html_translation_table(void)
* Returns the translation table used by htmlspecialchars() and htmlentities().
* Parameters
* None
* Return
* The translation table as an array or NULL on failure.
*/
static int PH7_builtin_get_html_translation_table(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ph7_value *pArray, *pValue;
sxu32 n;
/* Element value */
pValue = ph7_context_new_scalar(pCtx);
if(pValue == 0) {
SXUNUSED(nArg); /* cc warning */
SXUNUSED(apArg);
/* Return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Create a new array */
pArray = ph7_context_new_array(pCtx);
if(pArray == 0) {
/* Return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Make the table */
for(n = 0 ; n < SX_ARRAYSIZE(azHtmlEscape) ; n += 2) {
/* Prepare the value */
ph7_value_string(pValue, azHtmlEscape[n], -1 /* Compute length automatically */);
/* Insert the value */
ph7_array_add_strkey_elem(pArray, azHtmlEscape[n + 1], pValue);
/* Reset the string cursor */
ph7_value_reset_string_cursor(pValue);
}
/*
* Return the array.
* Don't worry about freeing memory, everything will be automatically
* released upon we return from this function.
*/
ph7_result_value(pCtx, pArray);
return PH7_OK;
}
/*
* string htmlentities( string $string [, int $flags = ENT_COMPAT | ENT_HTML401]);
* Convert all applicable characters to HTML entities
* Parameters
* $string
* The input string.
* $flags
* A bitmask of one or more of the flags (see block-comment on PH7_builtin_htmlspecialchars())
* Return
* The encoded string.
*/
static int PH7_builtin_htmlentities(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int iFlags = 0x01; /* ENT_COMPAT */
const char *zIn, *zEnd;
int nLen, c;
sxu32 n;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &nLen);
zEnd = &zIn[nLen];
/* Extract the flags if available */
if(nArg > 1) {
iFlags = ph7_value_to_int(apArg[1]);
if(iFlags < 0) {
iFlags = 0x01;
}
}
/* Perform the requested operation */
for(;;) {
if(zIn >= zEnd) {
/* No more input to process */
break;
}
c = zIn[0];
/* Perform a linear lookup on the decoding table */
for(n = 0 ; n < SX_ARRAYSIZE(azHtmlEscape) ; n += 2) {
if(azHtmlEscape[n + 1][0] == c) {
/* Got one */
break;
}
}
if(n < SX_ARRAYSIZE(azHtmlEscape)) {
/* Output the safe sequence [i.e: '<' ==> '&lt;"] */
if(c == '"' && (iFlags & 0x04) /*ENT_NOQUOTES*/) {
/* Expand the double quote verbatim */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
} else if(c == '\'' && ((iFlags & 0x02 /*ENT_QUOTES*/) == 0 || (iFlags & 0x04) /*ENT_NOQUOTES*/)) {
/* expand single quote verbatim */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
} else {
ph7_result_string(pCtx, azHtmlEscape[n], -1/*Compute length automatically */);
}
} else {
/* Output character verbatim */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
}
zIn++;
}
return PH7_OK;
}
/*
* string html_entity_decode(string $string [, int $quote_style = ENT_COMPAT [, string $charset = 'UTF-8' ]])
* Perform the reverse operation of html_entity_decode().
* Parameters
* $string
* The input string.
* $flags
* A bitmask of one or more of the flags (see comment on PH7_builtin_htmlspecialchars())
* Return
* The decoded string.
*/
static int PH7_builtin_html_entity_decode(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zCur, *zIn, *zEnd;
int iFlags = 0x01; /* ENT_COMPAT */
int nLen;
sxu32 n;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &nLen);
zEnd = &zIn[nLen];
/* Extract the flags if available */
if(nArg > 1) {
iFlags = ph7_value_to_int(apArg[1]);
if(iFlags < 0) {
iFlags = 0x01;
}
}
/* Perform the requested operation */
for(;;) {
if(zIn >= zEnd) {
/* No more input to process */
break;
}
zCur = zIn;
while(zIn < zEnd && zIn[0] != '&') {
zIn++;
}
if(zCur < zIn) {
/* Append raw string verbatim */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
if(zIn >= zEnd) {
break;
}
nLen = (int)(zEnd - zIn);
/* Find an encoded sequence */
for(n = 0 ; n < SX_ARRAYSIZE(azHtmlEscape) ; n += 2) {
int iLen = (int)SyStrlen(azHtmlEscape[n]);
if(nLen >= iLen && SyStrnicmp(zIn, azHtmlEscape[n], (sxu32)iLen) == 0) {
/* Got one */
zIn += iLen;
break;
}
}
if(n < SX_ARRAYSIZE(azHtmlEscape)) {
int c = azHtmlEscape[n + 1][0];
/* Output the decoded character */
if(c == '\'' && ((iFlags & 0x02) == 0 /*ENT_QUOTES*/ || (iFlags & 0x04) /*ENT_NOQUOTES*/)) {
/* Do not process single quotes */
ph7_result_string(pCtx, azHtmlEscape[n], -1);
} else if(c == '"' && (iFlags & 0x04) /*ENT_NOQUOTES*/) {
/* Do not process double quotes */
ph7_result_string(pCtx, azHtmlEscape[n], -1);
} else {
ph7_result_string(pCtx, azHtmlEscape[n + 1], -1); /* Compute length automatically */
}
} else {
/* Append '&' */
ph7_result_string(pCtx, "&", (int)sizeof(char));
zIn++;
}
}
return PH7_OK;
}
/*
* int strlen($string)
* return the length of the given string.
* Parameter
* string: The string being measured for length.
* Return
* length of the given string.
*/
static int PH7_builtin_strlen(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int iLen = 0;
if(nArg > 0) {
ph7_value_to_string(apArg[0], &iLen);
}
/* String length */
ph7_result_int(pCtx, iLen);
return PH7_OK;
}
/*
* int strcmp(string $str1,string $str2)
* Perform a binary safe string comparison.
* Parameter
* str1: The first string
* str2: The second string
* Return
* Returns < 0 if str1 is less than str2; > 0 if str1 is greater
* than str2, and 0 if they are equal.
*/
static int PH7_builtin_strcmp(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *z1, *z2;
int n1, n2;
int res;
if(nArg < 2) {
res = nArg == 0 ? 0 : 1;
ph7_result_int(pCtx, res);
return PH7_OK;
}
/* Perform the comparison */
z1 = ph7_value_to_string(apArg[0], &n1);
z2 = ph7_value_to_string(apArg[1], &n2);
res = SyStrncmp(z1, z2, (sxu32)(SXMAX(n1, n2)));
/* Comparison result */
ph7_result_int(pCtx, res);
return PH7_OK;
}
/*
* int strncmp(string $str1,string $str2,int n)
* Perform a binary safe string comparison of the first n characters.
* Parameter
* str1: The first string
* str2: The second string
* Return
* Returns < 0 if str1 is less than str2; > 0 if str1 is greater
* than str2, and 0 if they are equal.
*/
static int PH7_builtin_strncmp(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *z1, *z2;
int res;
int n;
if(nArg < 3) {
/* Perform a standard comparison */
return PH7_builtin_strcmp(pCtx, nArg, apArg);
}
/* Desired comparison length */
n = ph7_value_to_int(apArg[2]);
if(n < 0) {
/* Invalid length */
ph7_result_int(pCtx, -1);
return PH7_OK;
}
/* Perform the comparison */
z1 = ph7_value_to_string(apArg[0], 0);
z2 = ph7_value_to_string(apArg[1], 0);
res = SyStrncmp(z1, z2, (sxu32)n);
/* Comparison result */
ph7_result_int(pCtx, res);
return PH7_OK;
}
/*
* int strcasecmp(string $str1,string $str2,int n)
* Perform a binary safe case-insensitive string comparison.
* Parameter
* str1: The first string
* str2: The second string
* Return
* Returns < 0 if str1 is less than str2; > 0 if str1 is greater
* than str2, and 0 if they are equal.
*/
static int PH7_builtin_strcasecmp(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *z1, *z2;
int n1, n2;
int res;
if(nArg < 2) {
res = nArg == 0 ? 0 : 1;
ph7_result_int(pCtx, res);
return PH7_OK;
}
/* Perform the comparison */
z1 = ph7_value_to_string(apArg[0], &n1);
z2 = ph7_value_to_string(apArg[1], &n2);
res = SyStrnicmp(z1, z2, (sxu32)(SXMAX(n1, n2)));
/* Comparison result */
ph7_result_int(pCtx, res);
return PH7_OK;
}
/*
* int strncasecmp(string $str1,string $str2,int n)
* Perform a binary safe case-insensitive string comparison of the first n characters.
* Parameter
* $str1: The first string
* $str2: The second string
* $len: The length of strings to be used in the comparison.
* Return
* Returns < 0 if str1 is less than str2; > 0 if str1 is greater
* than str2, and 0 if they are equal.
*/
static int PH7_builtin_strncasecmp(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *z1, *z2;
int res;
int n;
if(nArg < 3) {
/* Perform a standard comparison */
return PH7_builtin_strcasecmp(pCtx, nArg, apArg);
}
/* Desired comparison length */
n = ph7_value_to_int(apArg[2]);
if(n < 0) {
/* Invalid length */
ph7_result_int(pCtx, -1);
return PH7_OK;
}
/* Perform the comparison */
z1 = ph7_value_to_string(apArg[0], 0);
z2 = ph7_value_to_string(apArg[1], 0);
res = SyStrnicmp(z1, z2, (sxu32)n);
/* Comparison result */
ph7_result_int(pCtx, res);
return PH7_OK;
}
/*
* Implode context [i.e: it's private data].
* A pointer to the following structure is forwarded
* verbatim to the array walker callback defined below.
*/
struct implode_data {
ph7_context *pCtx; /* Call context */
int bRecursive; /* TRUE if recursive implode [this is a symisc eXtension] */
const char *zSep; /* Arguments separator if any */
int nSeplen; /* Separator length */
int bFirst; /* TRUE if first call */
int nRecCount; /* Recursion count to avoid infinite loop */
};
/*
* Implode walker callback for the [ph7_array_walk()] interface.
* The following routine is invoked for each array entry passed
* to the implode() function.
*/
static int implode_callback(ph7_value *pKey, ph7_value *pValue, void *pUserData) {
struct implode_data *pData = (struct implode_data *)pUserData;
const char *zData;
int nLen;
if(pData->bRecursive && ph7_value_is_array(pValue) && pData->nRecCount < 32) {
if(pData->nSeplen > 0) {
if(!pData->bFirst) {
/* append the separator first */
ph7_result_string(pData->pCtx, pData->zSep, pData->nSeplen);
} else {
pData->bFirst = 0;
}
}
/* Recurse */
pData->bFirst = 1;
pData->nRecCount++;
PH7_HashmapWalk((ph7_hashmap *)pValue->x.pOther, implode_callback, pData);
pData->nRecCount--;
return PH7_OK;
}
/* Extract the string representation of the entry value */
zData = ph7_value_to_string(pValue, &nLen);
if(nLen > 0) {
if(pData->nSeplen > 0) {
if(!pData->bFirst) {
/* append the separator first */
ph7_result_string(pData->pCtx, pData->zSep, pData->nSeplen);
} else {
pData->bFirst = 0;
}
}
ph7_result_string(pData->pCtx, zData, nLen);
} else {
SXUNUSED(pKey); /* cc warning */
}
return PH7_OK;
}
/*
* string implode(string $glue,array $pieces,...)
* string implode(array $pieces,...)
* Join array elements with a string.
* $glue
* Defaults to an empty string. This is not the preferred usage of implode() as glue
* would be the second parameter and thus, the bad prototype would be used.
* $pieces
* The array of strings to implode.
* Return
* Returns a string containing a string representation of all the array elements in the same
* order, with the glue string between each element.
*/
static int PH7_builtin_implode(ph7_context *pCtx, int nArg, ph7_value **apArg) {
struct implode_data imp_data;
int i = 1;
if(nArg < 1) {
/* Missing argument,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Prepare the implode context */
imp_data.pCtx = pCtx;
imp_data.bRecursive = 0;
imp_data.bFirst = 1;
imp_data.nRecCount = 0;
if(!ph7_value_is_array(apArg[0])) {
imp_data.zSep = ph7_value_to_string(apArg[0], &imp_data.nSeplen);
} else {
imp_data.zSep = 0;
imp_data.nSeplen = 0;
i = 0;
}
ph7_result_string(pCtx, "", 0); /* Set an empty stirng */
/* Start the 'join' process */
while(i < nArg) {
if(ph7_value_is_array(apArg[i])) {
/* Iterate throw array entries */
ph7_array_walk(apArg[i], implode_callback, &imp_data);
} else {
const char *zData;
int nLen;
/* Extract the string representation of the ph7 value */
zData = ph7_value_to_string(apArg[i], &nLen);
if(nLen > 0) {
if(imp_data.nSeplen > 0) {
if(!imp_data.bFirst) {
/* append the separator first */
ph7_result_string(pCtx, imp_data.zSep, imp_data.nSeplen);
} else {
imp_data.bFirst = 0;
}
}
ph7_result_string(pCtx, zData, nLen);
}
}
i++;
}
return PH7_OK;
}
/*
* Symisc eXtension:
* string implode_recursive(string $glue,array $pieces,...)
* Purpose
* Same as implode() but recurse on arrays.
* Example:
* $a = array('usr',array('home','dean'));
* echo implode_recursive("/",$a);
* Will output
* usr/home/dean.
* While the standard implode would produce.
* usr/Array.
* Parameter
* Refer to implode().
* Return
* Refer to implode().
*/
static int PH7_builtin_implode_recursive(ph7_context *pCtx, int nArg, ph7_value **apArg) {
struct implode_data imp_data;
int i = 1;
if(nArg < 1) {
/* Missing argument,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Prepare the implode context */
imp_data.pCtx = pCtx;
imp_data.bRecursive = 1;
imp_data.bFirst = 1;
imp_data.nRecCount = 0;
if(!ph7_value_is_array(apArg[0])) {
imp_data.zSep = ph7_value_to_string(apArg[0], &imp_data.nSeplen);
} else {
imp_data.zSep = 0;
imp_data.nSeplen = 0;
i = 0;
}
ph7_result_string(pCtx, "", 0); /* Set an empty stirng */
/* Start the 'join' process */
while(i < nArg) {
if(ph7_value_is_array(apArg[i])) {
/* Iterate throw array entries */
ph7_array_walk(apArg[i], implode_callback, &imp_data);
} else {
const char *zData;
int nLen;
/* Extract the string representation of the ph7 value */
zData = ph7_value_to_string(apArg[i], &nLen);
if(nLen > 0) {
if(imp_data.nSeplen > 0) {
if(!imp_data.bFirst) {
/* append the separator first */
ph7_result_string(pCtx, imp_data.zSep, imp_data.nSeplen);
} else {
imp_data.bFirst = 0;
}
}
ph7_result_string(pCtx, zData, nLen);
}
}
i++;
}
return PH7_OK;
}
/*
* array explode(string $delimiter,string $string[,int $limit ])
* Returns an array of strings, each of which is a substring of string
* formed by splitting it on boundaries formed by the string delimiter.
* Parameters
* $delimiter
* The boundary string.
* $string
* The input string.
* $limit
* If limit is set and positive, the returned array will contain a maximum
* of limit elements with the last element containing the rest of string.
* If the limit parameter is negative, all fields except the last -limit are returned.
* If the limit parameter is zero, then this is treated as 1.
* Returns
* Returns an array of strings created by splitting the string parameter
* on boundaries formed by the delimiter.
* If delimiter is an empty string (""), explode() will return FALSE.
* If delimiter contains a value that is not contained in string and a negative
* limit is used, then an empty array will be returned, otherwise an array containing string
* will be returned.
* NOTE:
* Negative limit is not supported.
*/
static int PH7_builtin_explode(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zDelim, *zString, *zCur, *zEnd;
int nDelim, nStrlen, iLimit;
ph7_value *pArray;
ph7_value *pValue;
sxu32 nOfft;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the delimiter */
zDelim = ph7_value_to_string(apArg[0], &nDelim);
if(nDelim < 1) {
/* Empty delimiter,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the string */
zString = ph7_value_to_string(apArg[1], &nStrlen);
if(nStrlen < 1) {
/* Empty delimiter,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Point to the end of the string */
zEnd = &zString[nStrlen];
/* Create the array */
pArray = ph7_context_new_array(pCtx);
pValue = ph7_context_new_scalar(pCtx);
if(pArray == 0 || pValue == 0) {
/* Out of memory,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Set a defualt limit */
iLimit = SXI32_HIGH;
if(nArg > 2) {
iLimit = ph7_value_to_int(apArg[2]);
if(iLimit < 0) {
iLimit = -iLimit;
}
if(iLimit == 0) {
iLimit = 1;
}
iLimit--;
}
/* Start exploding */
for(;;) {
if(zString >= zEnd) {
/* No more entry to process */
break;
}
rc = SyBlobSearch(zString, (sxu32)(zEnd - zString), zDelim, nDelim, &nOfft);
if(rc != SXRET_OK || iLimit <= (int)ph7_array_count(pArray)) {
/* Limit reached,insert the rest of the string and break */
if(zEnd > zString) {
ph7_value_string(pValue, zString, (int)(zEnd - zString));
ph7_array_add_elem(pArray, 0/* Automatic index assign*/, pValue);
}
break;
}
/* Point to the desired offset */
zCur = &zString[nOfft];
if(zCur > zString) {
/* Perform the store operation */
ph7_value_string(pValue, zString, (int)(zCur - zString));
ph7_array_add_elem(pArray, 0/* Automatic index assign*/, pValue);
}
/* Point beyond the delimiter */
zString = &zCur[nDelim];
/* Reset the cursor */
ph7_value_reset_string_cursor(pValue);
}
/* Return the freshly created array */
ph7_result_value(pCtx, pArray);
/* NOTE that every allocated ph7_value will be automatically
* released as soon we return from this foregin function.
*/
return PH7_OK;
}
/*
* string trim(string $str[,string $charlist ])
* Strip whitespace (or other characters) from the beginning and end of a string.
* Parameters
* $str
* The string that will be trimmed.
* $charlist
* Optionally, the stripped characters can also be specified using the charlist parameter.
* Simply list all characters that you want to be stripped.
* With .. you can specify a range of characters.
* Returns.
* Thr processed string.
* NOTE:
* RANGE CHARACTERS [I.E: 'a'..'z'] are not supported.
*/
static int PH7_builtin_trim(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString;
int nLen;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Start the trim process */
if(nArg < 2) {
SyString sStr;
/* Remove white spaces and NUL bytes */
SyStringInitFromBuf(&sStr, zString, nLen);
SyStringFullTrimSafe(&sStr);
ph7_result_string(pCtx, sStr.zString, (int)sStr.nByte);
} else {
/* Char list */
const char *zList;
int nListlen;
zList = ph7_value_to_string(apArg[1], &nListlen);
if(nListlen < 1) {
/* Return the string unchanged */
ph7_result_string(pCtx, zString, nLen);
} else {
const char *zEnd = &zString[nLen];
const char *zCur = zString;
const char *zPtr;
int i;
/* Left trim */
for(;;) {
if(zCur >= zEnd) {
break;
}
zPtr = zCur;
for(i = 0 ; i < nListlen ; i++) {
if(zCur < zEnd && zCur[0] == zList[i]) {
zCur++;
}
}
if(zCur == zPtr) {
/* No match,break immediately */
break;
}
}
/* Right trim */
zEnd--;
for(;;) {
if(zEnd <= zCur) {
break;
}
zPtr = zEnd;
for(i = 0 ; i < nListlen ; i++) {
if(zEnd > zCur && zEnd[0] == zList[i]) {
zEnd--;
}
}
if(zEnd == zPtr) {
break;
}
}
if(zCur >= zEnd) {
/* Return the empty string */
ph7_result_string(pCtx, "", 0);
} else {
zEnd++;
ph7_result_string(pCtx, zCur, (int)(zEnd - zCur));
}
}
}
return PH7_OK;
}
/*
* string rtrim(string $str[,string $charlist ])
* Strip whitespace (or other characters) from the end of a string.
* Parameters
* $str
* The string that will be trimmed.
* $charlist
* Optionally, the stripped characters can also be specified using the charlist parameter.
* Simply list all characters that you want to be stripped.
* With .. you can specify a range of characters.
* Returns.
* Thr processed string.
* NOTE:
* RANGE CHARACTERS [I.E: 'a'..'z'] are not supported.
*/
static int PH7_builtin_rtrim(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString;
int nLen;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Start the trim process */
if(nArg < 2) {
SyString sStr;
/* Remove white spaces and NUL bytes*/
SyStringInitFromBuf(&sStr, zString, nLen);
SyStringRightTrimSafe(&sStr);
ph7_result_string(pCtx, sStr.zString, (int)sStr.nByte);
} else {
/* Char list */
const char *zList;
int nListlen;
zList = ph7_value_to_string(apArg[1], &nListlen);
if(nListlen < 1) {
/* Return the string unchanged */
ph7_result_string(pCtx, zString, nLen);
} else {
const char *zEnd = &zString[nLen - 1];
const char *zCur = zString;
const char *zPtr;
int i;
/* Right trim */
for(;;) {
if(zEnd <= zCur) {
break;
}
zPtr = zEnd;
for(i = 0 ; i < nListlen ; i++) {
if(zEnd > zCur && zEnd[0] == zList[i]) {
zEnd--;
}
}
if(zEnd == zPtr) {
break;
}
}
if(zEnd <= zCur) {
/* Return the empty string */
ph7_result_string(pCtx, "", 0);
} else {
zEnd++;
ph7_result_string(pCtx, zCur, (int)(zEnd - zCur));
}
}
}
return PH7_OK;
}
/*
* string ltrim(string $str[,string $charlist ])
* Strip whitespace (or other characters) from the beginning and end of a string.
* Parameters
* $str
* The string that will be trimmed.
* $charlist
* Optionally, the stripped characters can also be specified using the charlist parameter.
* Simply list all characters that you want to be stripped.
* With .. you can specify a range of characters.
* Returns.
* Thr processed string.
* NOTE:
* RANGE CHARACTERS [I.E: 'a'..'z'] are not supported.
*/
static int PH7_builtin_ltrim(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString;
int nLen;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Start the trim process */
if(nArg < 2) {
SyString sStr;
/* Remove white spaces and NUL byte */
SyStringInitFromBuf(&sStr, zString, nLen);
SyStringLeftTrimSafe(&sStr);
ph7_result_string(pCtx, sStr.zString, (int)sStr.nByte);
} else {
/* Char list */
const char *zList;
int nListlen;
zList = ph7_value_to_string(apArg[1], &nListlen);
if(nListlen < 1) {
/* Return the string unchanged */
ph7_result_string(pCtx, zString, nLen);
} else {
const char *zEnd = &zString[nLen];
const char *zCur = zString;
const char *zPtr;
int i;
/* Left trim */
for(;;) {
if(zCur >= zEnd) {
break;
}
zPtr = zCur;
for(i = 0 ; i < nListlen ; i++) {
if(zCur < zEnd && zCur[0] == zList[i]) {
zCur++;
}
}
if(zCur == zPtr) {
/* No match,break immediately */
break;
}
}
if(zCur >= zEnd) {
/* Return the empty string */
ph7_result_string(pCtx, "", 0);
} else {
ph7_result_string(pCtx, zCur, (int)(zEnd - zCur));
}
}
}
return PH7_OK;
}
/*
* string strtolower(string $str)
* Make a string lowercase.
* Parameters
* $str
* The input string.
* Returns.
* The lowercased string.
*/
static int PH7_builtin_strtolower(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zCur, *zEnd;
int nLen;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Perform the requested operation */
zEnd = &zString[nLen];
for(;;) {
if(zString >= zEnd) {
/* No more input,break immediately */
break;
}
if((unsigned char)zString[0] >= 0xc0) {
/* UTF-8 stream,output verbatim */
zCur = zString;
zString++;
while(zString < zEnd && ((unsigned char)zString[0] & 0xc0) == 0x80) {
zString++;
}
/* Append UTF-8 stream */
ph7_result_string(pCtx, zCur, (int)(zString - zCur));
} else {
int c = zString[0];
if(SyisUpper(c)) {
c = SyToLower(zString[0]);
}
/* Append character */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
/* Advance the cursor */
zString++;
}
}
return PH7_OK;
}
/*
* string strtolower(string $str)
* Make a string uppercase.
* Parameters
* $str
* The input string.
* Returns.
* The uppercased string.
*/
static int PH7_builtin_strtoupper(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zCur, *zEnd;
int nLen;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Perform the requested operation */
zEnd = &zString[nLen];
for(;;) {
if(zString >= zEnd) {
/* No more input,break immediately */
break;
}
if((unsigned char)zString[0] >= 0xc0) {
/* UTF-8 stream,output verbatim */
zCur = zString;
zString++;
while(zString < zEnd && ((unsigned char)zString[0] & 0xc0) == 0x80) {
zString++;
}
/* Append UTF-8 stream */
ph7_result_string(pCtx, zCur, (int)(zString - zCur));
} else {
int c = zString[0];
if(SyisLower(c)) {
c = SyToUpper(zString[0]);
}
/* Append character */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
/* Advance the cursor */
zString++;
}
}
return PH7_OK;
}
/*
* string ucfirst(string $str)
* Returns a string with the first character of str capitalized, if that
* character is alphabetic.
* Parameters
* $str
* The input string.
* Returns.
* The processed string.
*/
static int PH7_builtin_ucfirst(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zEnd;
int nLen, c;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Perform the requested operation */
zEnd = &zString[nLen];
c = zString[0];
if(SyisLower(c)) {
c = SyToUpper(c);
}
/* Append the first character */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
zString++;
if(zString < zEnd) {
/* Append the rest of the input verbatim */
ph7_result_string(pCtx, zString, (int)(zEnd - zString));
}
return PH7_OK;
}
/*
* string lcfirst(string $str)
* Make a string's first character lowercase.
* Parameters
* $str
* The input string.
* Returns.
* The processed string.
*/
static int PH7_builtin_lcfirst(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zEnd;
int nLen, c;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Perform the requested operation */
zEnd = &zString[nLen];
c = zString[0];
if(SyisUpper(c)) {
c = SyToLower(c);
}
/* Append the first character */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
zString++;
if(zString < zEnd) {
/* Append the rest of the input verbatim */
ph7_result_string(pCtx, zString, (int)(zEnd - zString));
}
return PH7_OK;
}
/*
* int ord(string $string)
* Returns the ASCII value of the first character of string.
* Parameters
* $str
* The input string.
* Returns.
* The ASCII value as an integer.
*/
static int PH7_builtin_ord(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const unsigned char *zString;
int nLen, c;
if(nArg < 1) {
/* Missing arguments,return -1 */
ph7_result_int(pCtx, -1);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return -1 */
ph7_result_int(pCtx, -1);
return PH7_OK;
}
/* Extract the ASCII value of the first character */
c = zString[0];
/* Return that value */
ph7_result_int(pCtx, c);
return PH7_OK;
}
/*
* string chr(int $ascii)
* Returns a one-character string containing the character specified by ascii.
* Parameters
* $ascii
* The ascii code.
* Returns.
* The specified character.
*/
static int PH7_builtin_chr(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int c;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the ASCII value */
c = ph7_value_to_int(apArg[0]);
/* Return the specified character */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
return PH7_OK;
}
/*
* Binary to hex consumer callback.
* This callback is the default consumer used by the hash functions
* [i.e: bin2hex(),md5(),sha1(),md5_file() ... ] defined below.
*/
static int HashConsumer(const void *pData, unsigned int nLen, void *pUserData) {
/* Append hex chunk verbatim */
ph7_result_string((ph7_context *)pUserData, (const char *)pData, (int)nLen);
return SXRET_OK;
}
/*
* string bin2hex(string $str)
* Convert binary data into hexadecimal representation.
* Parameters
* $str
* The input string.
* Returns.
* Returns the hexadecimal representation of the given string.
*/
static int PH7_builtin_bin2hex(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString;
int nLen;
if(nArg < 1) {
/* Missing arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Perform the requested operation */
SyBinToHexConsumer((const void *)zString, (sxu32)nLen, HashConsumer, pCtx);
return PH7_OK;
}
/* Search callback signature */
typedef sxi32(*ProcStringMatch)(const void *, sxu32, const void *, sxu32, sxu32 *);
/*
* Case-insensitive pattern match.
* Brute force is the default search method used here.
* This is due to the fact that brute-forcing works quite
* well for short/medium texts on modern hardware.
*/
static sxi32 iPatternMatch(const void *pText, sxu32 nLen, const void *pPattern, sxu32 iPatLen, sxu32 *pOfft) {
const char *zpIn = (const char *)pPattern;
const char *zIn = (const char *)pText;
const char *zpEnd = &zpIn[iPatLen];
const char *zEnd = &zIn[nLen];
const char *zPtr, *zPtr2;
int c, d;
if(iPatLen > nLen) {
/* Don't bother processing */
return SXERR_NOTFOUND;
}
for(;;) {
if(zIn >= zEnd) {
break;
}
c = SyToLower(zIn[0]);
d = SyToLower(zpIn[0]);
if(c == d) {
zPtr = &zIn[1];
zPtr2 = &zpIn[1];
for(;;) {
if(zPtr2 >= zpEnd) {
/* Pattern found */
if(pOfft) {
*pOfft = (sxu32)(zIn - (const char *)pText);
}
return SXRET_OK;
}
if(zPtr >= zEnd) {
break;
}
c = SyToLower(zPtr[0]);
d = SyToLower(zPtr2[0]);
if(c != d) {
break;
}
zPtr++;
zPtr2++;
}
}
zIn++;
}
/* Pattern not found */
return SXERR_NOTFOUND;
}
/*
* string strstr(string $haystack,string $needle[,bool $before_needle = false ])
* Find the first occurrence of a string.
* Parameters
* $haystack
* The input string.
* $needle
* Search pattern (must be a string).
* $before_needle
* If TRUE, strstr() returns the part of the haystack before the first occurrence
* of the needle (excluding the needle).
* Return
* Returns the portion of string, or FALSE if needle is not found.
*/
static int PH7_builtin_strstr(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ProcStringMatch xPatternMatch = SyBlobSearch; /* Case-sensitive pattern match */
const char *zBlob, *zPattern;
int nLen, nPatLen;
sxu32 nOfft;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the needle and the haystack */
zBlob = ph7_value_to_string(apArg[0], &nLen);
zPattern = ph7_value_to_string(apArg[1], &nPatLen);
nOfft = 0; /* cc warning */
if(nLen > 0 && nPatLen > 0) {
int before = 0;
/* Perform the lookup */
rc = xPatternMatch(zBlob, (sxu32)nLen, zPattern, (sxu32)nPatLen, &nOfft);
if(rc != SXRET_OK) {
/* Pattern not found,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Return the portion of the string */
if(nArg > 2) {
before = ph7_value_to_int(apArg[2]);
}
if(before) {
ph7_result_string(pCtx, zBlob, (int)(&zBlob[nOfft] - zBlob));
} else {
ph7_result_string(pCtx, &zBlob[nOfft], (int)(&zBlob[nLen] - &zBlob[nOfft]));
}
} else {
ph7_result_bool(pCtx, 0);
}
return PH7_OK;
}
/*
* string stristr(string $haystack,string $needle[,bool $before_needle = false ])
* Case-insensitive strstr().
* Parameters
* $haystack
* The input string.
* $needle
* Search pattern (must be a string).
* $before_needle
* If TRUE, strstr() returns the part of the haystack before the first occurrence
* of the needle (excluding the needle).
* Return
* Returns the portion of string, or FALSE if needle is not found.
*/
static int PH7_builtin_stristr(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ProcStringMatch xPatternMatch = iPatternMatch; /* Case-insensitive pattern match */
const char *zBlob, *zPattern;
int nLen, nPatLen;
sxu32 nOfft;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the needle and the haystack */
zBlob = ph7_value_to_string(apArg[0], &nLen);
zPattern = ph7_value_to_string(apArg[1], &nPatLen);
nOfft = 0; /* cc warning */
if(nLen > 0 && nPatLen > 0) {
int before = 0;
/* Perform the lookup */
rc = xPatternMatch(zBlob, (sxu32)nLen, zPattern, (sxu32)nPatLen, &nOfft);
if(rc != SXRET_OK) {
/* Pattern not found,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Return the portion of the string */
if(nArg > 2) {
before = ph7_value_to_int(apArg[2]);
}
if(before) {
ph7_result_string(pCtx, zBlob, (int)(&zBlob[nOfft] - zBlob));
} else {
ph7_result_string(pCtx, &zBlob[nOfft], (int)(&zBlob[nLen] - &zBlob[nOfft]));
}
} else {
ph7_result_bool(pCtx, 0);
}
return PH7_OK;
}
/*
* int strpos(string $haystack,string $needle [,int $offset = 0 ] )
* Returns the numeric position of the first occurrence of needle in the haystack string.
* Parameters
* $haystack
* The input string.
* $needle
* Search pattern (must be a string).
* $offset
* This optional offset parameter allows you to specify which character in haystack
* to start searching. The position returned is still relative to the beginning
* of haystack.
* Return
* Returns the position as an integer.If needle is not found, strpos() will return FALSE.
*/
static int PH7_builtin_strpos(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ProcStringMatch xPatternMatch = SyBlobSearch; /* Case-sensitive pattern match */
const char *zBlob, *zPattern;
int nLen, nPatLen, nStart;
sxu32 nOfft;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the needle and the haystack */
zBlob = ph7_value_to_string(apArg[0], &nLen);
zPattern = ph7_value_to_string(apArg[1], &nPatLen);
nOfft = 0; /* cc warning */
nStart = 0;
/* Peek the starting offset if available */
if(nArg > 2) {
nStart = ph7_value_to_int(apArg[2]);
if(nStart < 0) {
nStart = -nStart;
}
if(nStart >= nLen) {
/* Invalid offset */
nStart = 0;
} else {
zBlob += nStart;
nLen -= nStart;
}
}
if(nLen > 0 && nPatLen > 0) {
/* Perform the lookup */
rc = xPatternMatch(zBlob, (sxu32)nLen, zPattern, (sxu32)nPatLen, &nOfft);
if(rc != SXRET_OK) {
/* Pattern not found,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Return the pattern position */
ph7_result_int64(pCtx, (ph7_int64)(nOfft + nStart));
} else {
ph7_result_bool(pCtx, 0);
}
return PH7_OK;
}
/*
* int stripos(string $haystack,string $needle [,int $offset = 0 ] )
* Case-insensitive strpos.
* Parameters
* $haystack
* The input string.
* $needle
* Search pattern (must be a string).
* $offset
* This optional offset parameter allows you to specify which character in haystack
* to start searching. The position returned is still relative to the beginning
* of haystack.
* Return
* Returns the position as an integer.If needle is not found, strpos() will return FALSE.
*/
static int PH7_builtin_stripos(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ProcStringMatch xPatternMatch = iPatternMatch; /* Case-insensitive pattern match */
const char *zBlob, *zPattern;
int nLen, nPatLen, nStart;
sxu32 nOfft;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the needle and the haystack */
zBlob = ph7_value_to_string(apArg[0], &nLen);
zPattern = ph7_value_to_string(apArg[1], &nPatLen);
nOfft = 0; /* cc warning */
nStart = 0;
/* Peek the starting offset if available */
if(nArg > 2) {
nStart = ph7_value_to_int(apArg[2]);
if(nStart < 0) {
nStart = -nStart;
}
if(nStart >= nLen) {
/* Invalid offset */
nStart = 0;
} else {
zBlob += nStart;
nLen -= nStart;
}
}
if(nLen > 0 && nPatLen > 0) {
/* Perform the lookup */
rc = xPatternMatch(zBlob, (sxu32)nLen, zPattern, (sxu32)nPatLen, &nOfft);
if(rc != SXRET_OK) {
/* Pattern not found,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Return the pattern position */
ph7_result_int64(pCtx, (ph7_int64)(nOfft + nStart));
} else {
ph7_result_bool(pCtx, 0);
}
return PH7_OK;
}
/*
* int strrpos(string $haystack,string $needle [,int $offset = 0 ] )
* Find the numeric position of the last occurrence of needle in the haystack string.
* Parameters
* $haystack
* The input string.
* $needle
* Search pattern (must be a string).
* $offset
* If specified, search will start this number of characters counted from the beginning
* of the string. If the value is negative, search will instead start from that many
* characters from the end of the string, searching backwards.
* Return
* Returns the position as an integer.If needle is not found, strrpos() will return FALSE.
*/
static int PH7_builtin_strrpos(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zStart, *zBlob, *zPattern, *zPtr, *zEnd;
ProcStringMatch xPatternMatch = SyBlobSearch; /* Case-sensitive pattern match */
int nLen, nPatLen;
sxu32 nOfft;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the needle and the haystack */
zBlob = ph7_value_to_string(apArg[0], &nLen);
zPattern = ph7_value_to_string(apArg[1], &nPatLen);
/* Point to the end of the pattern */
zPtr = &zBlob[nLen - 1];
zEnd = &zBlob[nLen];
/* Save the starting posistion */
zStart = zBlob;
nOfft = 0; /* cc warning */
/* Peek the starting offset if available */
if(nArg > 2) {
int nStart;
nStart = ph7_value_to_int(apArg[2]);
if(nStart < 0) {
nStart = -nStart;
if(nStart >= nLen) {
/* Invalid offset */
ph7_result_bool(pCtx, 0);
return PH7_OK;
} else {
nLen -= nStart;
zPtr = &zBlob[nLen - 1];
zEnd = &zBlob[nLen];
}
} else {
if(nStart >= nLen) {
/* Invalid offset */
ph7_result_bool(pCtx, 0);
return PH7_OK;
} else {
zBlob += nStart;
nLen -= nStart;
}
}
}
if(nLen > 0 && nPatLen > 0) {
/* Perform the lookup */
for(;;) {
if(zBlob >= zPtr) {
break;
}
rc = xPatternMatch((const void *)zPtr, (sxu32)(zEnd - zPtr), (const void *)zPattern, (sxu32)nPatLen, &nOfft);
if(rc == SXRET_OK) {
/* Pattern found,return it's position */
ph7_result_int64(pCtx, (ph7_int64)(&zPtr[nOfft] - zStart));
return PH7_OK;
}
zPtr--;
}
/* Pattern not found,return FALSE */
ph7_result_bool(pCtx, 0);
} else {
ph7_result_bool(pCtx, 0);
}
return PH7_OK;
}
/*
* int strripos(string $haystack,string $needle [,int $offset = 0 ] )
* Case-insensitive strrpos.
* Parameters
* $haystack
* The input string.
* $needle
* Search pattern (must be a string).
* $offset
* If specified, search will start this number of characters counted from the beginning
* of the string. If the value is negative, search will instead start from that many
* characters from the end of the string, searching backwards.
* Return
* Returns the position as an integer.If needle is not found, strrpos() will return FALSE.
*/
static int PH7_builtin_strripos(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zStart, *zBlob, *zPattern, *zPtr, *zEnd;
ProcStringMatch xPatternMatch = iPatternMatch; /* Case-insensitive pattern match */
int nLen, nPatLen;
sxu32 nOfft;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the needle and the haystack */
zBlob = ph7_value_to_string(apArg[0], &nLen);
zPattern = ph7_value_to_string(apArg[1], &nPatLen);
/* Point to the end of the pattern */
zPtr = &zBlob[nLen - 1];
zEnd = &zBlob[nLen];
/* Save the starting posistion */
zStart = zBlob;
nOfft = 0; /* cc warning */
/* Peek the starting offset if available */
if(nArg > 2) {
int nStart;
nStart = ph7_value_to_int(apArg[2]);
if(nStart < 0) {
nStart = -nStart;
if(nStart >= nLen) {
/* Invalid offset */
ph7_result_bool(pCtx, 0);
return PH7_OK;
} else {
nLen -= nStart;
zPtr = &zBlob[nLen - 1];
zEnd = &zBlob[nLen];
}
} else {
if(nStart >= nLen) {
/* Invalid offset */
ph7_result_bool(pCtx, 0);
return PH7_OK;
} else {
zBlob += nStart;
nLen -= nStart;
}
}
}
if(nLen > 0 && nPatLen > 0) {
/* Perform the lookup */
for(;;) {
if(zBlob >= zPtr) {
break;
}
rc = xPatternMatch((const void *)zPtr, (sxu32)(zEnd - zPtr), (const void *)zPattern, (sxu32)nPatLen, &nOfft);
if(rc == SXRET_OK) {
/* Pattern found,return it's position */
ph7_result_int64(pCtx, (ph7_int64)(&zPtr[nOfft] - zStart));
return PH7_OK;
}
zPtr--;
}
/* Pattern not found,return FALSE */
ph7_result_bool(pCtx, 0);
} else {
ph7_result_bool(pCtx, 0);
}
return PH7_OK;
}
/*
* int strrchr(string $haystack,mixed $needle)
* Find the last occurrence of a character in a string.
* Parameters
* $haystack
* The input string.
* $needle
* If needle contains more than one character, only the first is used.
* This behavior is different from that of strstr().
* If needle is not a string, it is converted to an integer and applied
* as the ordinal value of a character.
* Return
* This function returns the portion of string, or FALSE if needle is not found.
*/
static int PH7_builtin_strrchr(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zBlob;
int nLen, c;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the haystack */
zBlob = ph7_value_to_string(apArg[0], &nLen);
c = 0; /* cc warning */
if(nLen > 0) {
sxu32 nOfft;
sxi32 rc;
if(ph7_value_is_string(apArg[1])) {
const char *zPattern;
zPattern = ph7_value_to_string(apArg[1], 0); /* Never fail,so there is no need to check
* for NULL pointer.
*/
c = zPattern[0];
} else {
/* Int cast */
c = ph7_value_to_int(apArg[1]);
}
/* Perform the lookup */
rc = SyByteFind2(zBlob, (sxu32)nLen, c, &nOfft);
if(rc != SXRET_OK) {
/* No such entry,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Return the string portion */
ph7_result_string(pCtx, &zBlob[nOfft], (int)(&zBlob[nLen] - &zBlob[nOfft]));
} else {
ph7_result_bool(pCtx, 0);
}
return PH7_OK;
}
/*
* string strrev(string $string)
* Reverse a string.
* Parameters
* $string
* String to be reversed.
* Return
* The reversed string.
*/
static int PH7_builtin_strrev(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn, *zEnd;
int nLen, c;
if(nArg < 1) {
/* Missing arguments,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string Return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Perform the requested operation */
zEnd = &zIn[nLen - 1];
for(;;) {
if(zEnd < zIn) {
/* No more input to process */
break;
}
/* Append current character */
c = zEnd[0];
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
zEnd--;
}
return PH7_OK;
}
/*
* string ucwords(string $string)
* Uppercase the first character of each word in a string.
* The definition of a word is any string of characters that is immediately after
* a whitespace (These are: space, form-feed, newline, carriage return, horizontal tab, and vertical tab).
* Parameters
* $string
* The input string.
* Return
* The modified string..
*/
static int PH7_builtin_ucwords(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn, *zCur, *zEnd;
int nLen, c;
if(nArg < 1) {
/* Missing arguments,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string Return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Perform the requested operation */
zEnd = &zIn[nLen];
for(;;) {
/* Jump leading white spaces */
zCur = zIn;
while(zIn < zEnd && (unsigned char)zIn[0] < 0x80 && SyisSpace(zIn[0])) {
zIn++;
}
if(zCur < zIn) {
/* Append white space stream */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
if(zIn >= zEnd) {
/* No more input to process */
break;
}
c = zIn[0];
if(c < 0x80 && SyisLower(c)) {
c = SyToUpper(c);
}
/* Append the upper-cased character */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
zIn++;
zCur = zIn;
/* Append the word varbatim */
while(zIn < zEnd) {
if((unsigned char)zIn[0] >= 0xc0) {
/* UTF-8 stream */
zIn++;
SX_JMP_UTF8(zIn, zEnd);
} else if(!SyisSpace(zIn[0])) {
zIn++;
} else {
break;
}
}
if(zCur < zIn) {
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
}
return PH7_OK;
}
/*
* string str_repeat(string $input,int $multiplier)
* Returns input repeated multiplier times.
* Parameters
* $string
* String to be repeated.
* $multiplier
* Number of time the input string should be repeated.
* multiplier has to be greater than or equal to 0. If the multiplier is set
* to 0, the function will return an empty string.
* Return
* The repeated string.
*/
static int PH7_builtin_str_repeat(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn;
int nLen, nMul;
int rc;
if(nArg < 2) {
/* Missing arguments,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string.Return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the multiplier */
nMul = ph7_value_to_int(apArg[1]);
if(nMul < 1) {
/* Return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Perform the requested operation */
for(;;) {
if(!nMul) {
break;
}
/* Append the copy */
rc = ph7_result_string(pCtx, zIn, nLen);
if(rc != PH7_OK) {
/* Out of memory,break immediately */
break;
}
nMul--;
}
return PH7_OK;
}
/*
* string nl2br(string $string[,bool $is_xhtml = true ])
* Inserts HTML line breaks before all newlines in a string.
* Parameters
* $string
* The input string.
* $is_xhtml
* Whenever to use XHTML compatible line breaks or not.
* Return
* The processed string.
*/
static int PH7_builtin_nl2br(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn, *zCur, *zEnd;
int is_xhtml = 0;
int nLen;
if(nArg < 1) {
/* Missing arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
if(nArg > 1) {
is_xhtml = ph7_value_to_bool(apArg[1]);
}
zEnd = &zIn[nLen];
/* Perform the requested operation */
for(;;) {
zCur = zIn;
/* Delimit the string */
while(zIn < zEnd && (zIn[0] != '\n' && zIn[0] != '\r')) {
zIn++;
}
if(zCur < zIn) {
/* Output chunk verbatim */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
if(zIn >= zEnd) {
/* No more input to process */
break;
}
/* Output the HTML line break */
if(is_xhtml) {
ph7_result_string(pCtx, "<br>", (int)sizeof("<br>") - 1);
} else {
ph7_result_string(pCtx, "<br/>", (int)sizeof("<br/>") - 1);
}
zCur = zIn;
/* Append trailing line */
while(zIn < zEnd && (zIn[0] == '\n' || zIn[0] == '\r')) {
zIn++;
}
if(zCur < zIn) {
/* Output chunk verbatim */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
}
return PH7_OK;
}
/*
* Format a given string and invoke the given callback on each processed chunk.
* According to the PHP reference manual.
* The format string is composed of zero or more directives: ordinary characters
* (excluding %) that are copied directly to the result, and conversion
* specifications, each of which results in fetching its own parameter.
* This applies to both sprintf() and printf().
* Each conversion specification consists of a percent sign (%), followed by one
* or more of these elements, in order:
* An optional sign specifier that forces a sign (- or +) to be used on a number.
* By default, only the - sign is used on a number if it's negative. This specifier forces
* positive numbers to have the + sign attached as well.
* An optional padding specifier that says what character will be used for padding
* the results to the right string size. This may be a space character or a 0 (zero character).
* The default is to pad with spaces. An alternate padding character can be specified by prefixing
* it with a single quote ('). See the examples below.
* An optional alignment specifier that says if the result should be left-justified or right-justified.
* The default is right-justified; a - character here will make it left-justified.
* An optional number, a width specifier that says how many characters (minimum) this conversion
* should result in.
* An optional precision specifier in the form of a period (`.') followed by an optional decimal
* digit string that says how many decimal digits should be displayed for floating-point numbers.
* When using this specifier on a string, it acts as a cutoff point, setting a maximum character
* limit to the string.
* A type specifier that says what type the argument data should be treated as. Possible types:
* % - a literal percent character. No argument is required.
* b - the argument is treated as an integer, and presented as a binary number.
* c - the argument is treated as an integer, and presented as the character with that ASCII value.
* d - the argument is treated as an integer, and presented as a (signed) decimal number.
* e - the argument is treated as scientific notation (e.g. 1.2e+2). The precision specifier stands
* for the number of digits after the decimal point.
* E - like %e but uses uppercase letter (e.g. 1.2E+2).
* u - the argument is treated as an integer, and presented as an unsigned decimal number.
* f - the argument is treated as a float, and presented as a floating-point number (locale aware).
* F - the argument is treated as a float, and presented as a floating-point number (non-locale aware).
* g - shorter of %e and %f.
* G - shorter of %E and %f.
* o - the argument is treated as an integer, and presented as an octal number.
* s - the argument is treated as and presented as a string.
* x - the argument is treated as an integer and presented as a hexadecimal number (with lowercase letters).
* X - the argument is treated as an integer and presented as a hexadecimal number (with uppercase letters).
*/
/*
* This implementation is based on the one found in the SQLite3 source tree.
*/
#define PH7_FMT_BUFSIZ 1024 /* Conversion buffer size */
/*
** Conversion types fall into various categories as defined by the
** following enumeration.
*/
#define PH7_FMT_RADIX 1 /* Integer types.%d, %x, %o, and so forth */
#define PH7_FMT_FLOAT 2 /* Floating point.%f */
#define PH7_FMT_EXP 3 /* Exponentional notation.%e and %E */
#define PH7_FMT_GENERIC 4 /* Floating or exponential, depending on exponent.%g */
#define PH7_FMT_SIZE 5 /* Total number of characters processed so far.%n */
#define PH7_FMT_STRING 6 /* Strings.%s */
#define PH7_FMT_PERCENT 7 /* Percent symbol.%% */
#define PH7_FMT_CHARX 8 /* Characters.%c */
#define PH7_FMT_ERROR 9 /* Used to indicate no such conversion type */
/*
** Allowed values for ph7_fmt_info.flags
*/
#define PH7_FMT_FLAG_SIGNED 0x01
#define PH7_FMT_FLAG_UNSIGNED 0x02
/*
** Each builtin conversion character (ex: the 'd' in "%d") is described
** by an instance of the following structure
*/
typedef struct ph7_fmt_info ph7_fmt_info;
struct ph7_fmt_info {
char fmttype; /* The format field code letter [i.e: 'd','s','x'] */
sxu8 base; /* The base for radix conversion */
int flags; /* One or more of PH7_FMT_FLAG_ constants below */
sxu8 type; /* Conversion paradigm */
const char *charset; /* The character set for conversion */
const char *prefix; /* Prefix on non-zero values in alt format */
};
/*
** "*val" is a double such that 0.1 <= *val < 10.0
** Return the ascii code for the leading digit of *val, then
** multiply "*val" by 10.0 to renormalize.
**
** Example:
** input: *val = 3.14159
** output: *val = 1.4159 function return = '3'
**
** The counter *cnt is incremented each time. After counter exceeds
** 16 (the number of significant digits in a 64-bit float) '0' is
** always returned.
*/
static int vxGetdigit(sxlongreal *val, int *cnt) {
sxlongreal d;
int digit;
if((*cnt)++ >= 16) {
return '0';
}
digit = (int) * val;
d = digit;
*val = (*val - d) * 10.0;
return digit + '0' ;
}
/*
* The following table is searched linearly, so it is good to put the most frequently
* used conversion types first.
*/
static const ph7_fmt_info aFmt[] = {
{ 'd', 10, PH7_FMT_FLAG_SIGNED, PH7_FMT_RADIX, "0123456789", 0 },
{ 's', 0, 0, PH7_FMT_STRING, 0, 0 },
{ 'c', 0, 0, PH7_FMT_CHARX, 0, 0 },
{ 'x', 16, 0, PH7_FMT_RADIX, "0123456789abcdef", "x0" },
{ 'X', 16, 0, PH7_FMT_RADIX, "0123456789ABCDEF", "X0" },
{ 'b', 2, 0, PH7_FMT_RADIX, "01", "b0"},
{ 'o', 8, 0, PH7_FMT_RADIX, "01234567", "0" },
{ 'u', 10, 0, PH7_FMT_RADIX, "0123456789", 0 },
{ 'f', 0, PH7_FMT_FLAG_SIGNED, PH7_FMT_FLOAT, 0, 0 },
{ 'F', 0, PH7_FMT_FLAG_SIGNED, PH7_FMT_FLOAT, 0, 0 },
{ 'e', 0, PH7_FMT_FLAG_SIGNED, PH7_FMT_EXP, "e", 0 },
{ 'E', 0, PH7_FMT_FLAG_SIGNED, PH7_FMT_EXP, "E", 0 },
{ 'g', 0, PH7_FMT_FLAG_SIGNED, PH7_FMT_GENERIC, "e", 0 },
{ 'G', 0, PH7_FMT_FLAG_SIGNED, PH7_FMT_GENERIC, "E", 0 },
{ '%', 0, 0, PH7_FMT_PERCENT, 0, 0 }
};
/*
* Format a given string.
* The root program. All variations call this core.
* INPUTS:
* xConsumer This is a pointer to a function taking four arguments
* 1. A pointer to the call context.
* 2. A pointer to the list of characters to be output
* (Note, this list is NOT null terminated.)
* 3. An integer number of characters to be output.
* (Note: This number might be zero.)
* 4. Upper layer private data.
* zIn This is the format string, as in the usual print.
* apArg This is a pointer to a list of arguments.
*/
PH7_PRIVATE sxi32 PH7_InputFormat(
int (*xConsumer)(ph7_context *, const char *, int, void *), /* Format consumer */
ph7_context *pCtx, /* call context */
const char *zIn, /* Format string */
int nByte, /* Format string length */
int nArg, /* Total argument of the given arguments */
ph7_value **apArg, /* User arguments */
void *pUserData, /* Last argument to xConsumer() */
int vf /* TRUE if called from vfprintf,vsprintf context */
) {
char spaces[] = " ";
#define etSPACESIZE ((int)sizeof(spaces)-1)
const char *zCur, *zEnd = &zIn[nByte];
char *zBuf, zWorker[PH7_FMT_BUFSIZ]; /* Working buffer */
const ph7_fmt_info *pInfo; /* Pointer to the appropriate info structure */
int flag_alternateform; /* True if "#" flag is present */
int flag_leftjustify; /* True if "-" flag is present */
int flag_blanksign; /* True if " " flag is present */
int flag_plussign; /* True if "+" flag is present */
int flag_zeropad; /* True if field width constant starts with zero */
ph7_value *pArg; /* Current processed argument */
ph7_int64 iVal;
int precision; /* Precision of the current field */
char *zExtra;
int c, rc, n;
int length; /* Length of the field */
int prefix;
sxu8 xtype; /* Conversion paradigm */
int width; /* Width of the current field */
int idx;
n = (vf == TRUE) ? 0 : 1;
#define NEXT_ARG ( n < nArg ? apArg[n++] : 0 )
/* Start the format process */
for(;;) {
zCur = zIn;
while(zIn < zEnd && zIn[0] != '%') {
zIn++;
}
if(zCur < zIn) {
/* Consume chunk verbatim */
rc = xConsumer(pCtx, zCur, (int)(zIn - zCur), pUserData);
if(rc == SXERR_ABORT) {
/* Callback request an operation abort */
break;
}
}
if(zIn >= zEnd) {
/* No more input to process,break immediately */
break;
}
/* Find out what flags are present */
flag_leftjustify = flag_plussign = flag_blanksign =
flag_alternateform = flag_zeropad = 0;
zIn++; /* Jump the precent sign */
do {
c = zIn[0];
switch(c) {
case '-':
flag_leftjustify = 1;
c = 0;
break;
case '+':
flag_plussign = 1;
c = 0;
break;
case ' ':
flag_blanksign = 1;
c = 0;
break;
case '#':
flag_alternateform = 1;
c = 0;
break;
case '0':
flag_zeropad = 1;
c = 0;
break;
case '\'':
zIn++;
if(zIn < zEnd) {
/* An alternate padding character can be specified by prefixing it with a single quote (') */
c = zIn[0];
for(idx = 0 ; idx < etSPACESIZE ; ++idx) {
spaces[idx] = (char)c;
}
c = 0;
}
break;
default:
break;
}
} while(c == 0 && (zIn++ < zEnd));
/* Get the field width */
width = 0;
while(zIn < zEnd && (zIn[0] >= '0' && zIn[0] <= '9')) {
width = width * 10 + (zIn[0] - '0');
zIn++;
}
if(zIn < zEnd && zIn[0] == '$') {
/* Position specifer */
if(width > 0) {
n = width;
if(vf && n > 0) {
n--;
}
}
zIn++;
width = 0;
if(zIn < zEnd && zIn[0] == '0') {
flag_zeropad = 1;
zIn++;
}
while(zIn < zEnd && (zIn[0] >= '0' && zIn[0] <= '9')) {
width = width * 10 + (zIn[0] - '0');
zIn++;
}
}
if(width > PH7_FMT_BUFSIZ - 10) {
width = PH7_FMT_BUFSIZ - 10;
}
/* Get the precision */
precision = -1;
if(zIn < zEnd && zIn[0] == '.') {
precision = 0;
zIn++;
while(zIn < zEnd && (zIn[0] >= '0' && zIn[0] <= '9')) {
precision = precision * 10 + (zIn[0] - '0');
zIn++;
}
}
if(zIn >= zEnd) {
/* No more input */
break;
}
/* Fetch the info entry for the field */
pInfo = 0;
xtype = PH7_FMT_ERROR;
c = zIn[0];
zIn++; /* Jump the format specifer */
for(idx = 0; idx < (int)SX_ARRAYSIZE(aFmt); idx++) {
if(c == aFmt[idx].fmttype) {
pInfo = &aFmt[idx];
xtype = pInfo->type;
break;
}
}
zBuf = zWorker; /* Point to the working buffer */
length = 0;
zExtra = 0;
/*
** At this point, variables are initialized as follows:
**
** flag_alternateform TRUE if a '#' is present.
** flag_plussign TRUE if a '+' is present.
** flag_leftjustify TRUE if a '-' is present or if the
** field width was negative.
** flag_zeropad TRUE if the width began with 0.
** the conversion character.
** flag_blanksign TRUE if a ' ' is present.
** width The specified field width. This is
** always non-negative. Zero is the default.
** precision The specified precision. The default
** is -1.
*/
switch(xtype) {
case PH7_FMT_PERCENT:
/* A literal percent character */
zWorker[0] = '%';
length = (int)sizeof(char);
break;
case PH7_FMT_CHARX:
/* The argument is treated as an integer, and presented as the character
* with that ASCII value
*/
pArg = NEXT_ARG;
if(pArg == 0) {
c = 0;
} else {
c = ph7_value_to_int(pArg);
}
/* NUL byte is an acceptable value */
zWorker[0] = (char)c;
length = (int)sizeof(char);
break;
case PH7_FMT_STRING:
/* the argument is treated as and presented as a string */
pArg = NEXT_ARG;
if(pArg == 0) {
length = 0;
} else {
zBuf = (char *)ph7_value_to_string(pArg, &length);
}
if(length < 1) {
zBuf = " ";
length = (int)sizeof(char);
}
if(precision >= 0 && precision < length) {
length = precision;
}
if(flag_zeropad) {
/* zero-padding works on strings too */
for(idx = 0 ; idx < etSPACESIZE ; ++idx) {
spaces[idx] = '0';
}
}
break;
case PH7_FMT_RADIX:
pArg = NEXT_ARG;
if(pArg == 0) {
iVal = 0;
} else {
iVal = ph7_value_to_int64(pArg);
}
/* Limit the precision to prevent overflowing buf[] during conversion */
if(precision > PH7_FMT_BUFSIZ - 40) {
precision = PH7_FMT_BUFSIZ - 40;
}
#if 1
/* For the format %#x, the value zero is printed "0" not "0x0".
** I think this is stupid.*/
if(iVal == 0) {
flag_alternateform = 0;
}
#else
/* More sensible: turn off the prefix for octal (to prevent "00"),
** but leave the prefix for hex.*/
if(iVal == 0 && pInfo->base == 8) {
flag_alternateform = 0;
}
#endif
if(pInfo->flags & PH7_FMT_FLAG_SIGNED) {
if(iVal < 0) {
iVal = -iVal;
/* Ticket 1433-003 */
if(iVal < 0) {
/* Overflow */
iVal = SXI64_HIGH;
}
prefix = '-';
} else if(flag_plussign) {
prefix = '+';
} else if(flag_blanksign) {
prefix = ' ';
} else {
prefix = 0;
}
} else {
if(iVal < 0) {
iVal = -iVal;
/* Ticket 1433-003 */
if(iVal < 0) {
/* Overflow */
iVal = SXI64_HIGH;
}
}
prefix = 0;
}
if(flag_zeropad && precision < width - (prefix != 0)) {
precision = width - (prefix != 0);
}
zBuf = &zWorker[PH7_FMT_BUFSIZ - 1];
{
register const char *cset; /* Use registers for speed */
register int base;
cset = pInfo->charset;
base = pInfo->base;
do { /* Convert to ascii */
*(--zBuf) = cset[iVal % base];
iVal = iVal / base;
} while(iVal > 0);
}
length = &zWorker[PH7_FMT_BUFSIZ - 1] - zBuf;
for(idx = precision - length; idx > 0; idx--) {
*(--zBuf) = '0'; /* Zero pad */
}
if(prefix) {
*(--zBuf) = (char)prefix; /* Add sign */
}
if(flag_alternateform && pInfo->prefix) { /* Add "0" or "0x" */
const char *pre;
char x;
pre = pInfo->prefix;
if(*zBuf != pre[0]) {
for(pre = pInfo->prefix; (x = (*pre)) != 0; pre++) {
*(--zBuf) = x;
}
}
}
length = &zWorker[PH7_FMT_BUFSIZ - 1] - zBuf;
break;
case PH7_FMT_FLOAT:
case PH7_FMT_EXP:
case PH7_FMT_GENERIC: {
long double realvalue;
int exp; /* exponent of real numbers */
double rounder; /* Used for rounding floating point values */
int flag_dp; /* True if decimal point should be shown */
int flag_rtz; /* True if trailing zeros should be removed */
int flag_exp; /* True to force display of the exponent */
int nsd; /* Number of significant digits returned */
pArg = NEXT_ARG;
if(pArg == 0) {
realvalue = 0;
} else {
realvalue = ph7_value_to_double(pArg);
}
if(precision < 0) {
precision = 6; /* Set default precision */
}
if(precision > PH7_FMT_BUFSIZ - 40) {
precision = PH7_FMT_BUFSIZ - 40;
}
if(realvalue < 0.0) {
realvalue = -realvalue;
prefix = '-';
} else {
if(flag_plussign) {
prefix = '+';
} else if(flag_blanksign) {
prefix = ' ';
} else {
prefix = 0;
}
}
if(pInfo->type == PH7_FMT_GENERIC && precision > 0) {
precision--;
}
rounder = 0.0;
/* Rounding works like BSD when the constant 0.4999 is used. Wierd!
* It makes more sense to use 0.5 instead. */
for(idx = precision, rounder = 0.5; idx > 0; idx--, rounder *= 0.1);
if(pInfo->type == PH7_FMT_FLOAT) {
realvalue += rounder;
}
/* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
exp = 0;
if(realvalue > 0.0) {
while(realvalue >= 1e8 && exp <= 350) {
realvalue *= 1e-8;
exp += 8;
}
while(realvalue >= 10.0 && exp <= 350) {
realvalue *= 0.1;
exp++;
}
while(realvalue < 1e-8 && exp >= -350) {
realvalue *= 1e8;
exp -= 8;
}
while(realvalue < 1.0 && exp >= -350) {
realvalue *= 10.0;
exp--;
}
if(exp > 350 || exp < -350) {
zBuf = "NaN";
length = 3;
break;
}
}
zBuf = zWorker;
/*
** If the field type is etGENERIC, then convert to either etEXP
** or etFLOAT, as appropriate.
*/
flag_exp = xtype == PH7_FMT_EXP;
if(xtype != PH7_FMT_FLOAT) {
realvalue += rounder;
if(realvalue >= 10.0) {
realvalue *= 0.1;
exp++;
}
}
if(xtype == PH7_FMT_GENERIC) {
flag_rtz = !flag_alternateform;
if(exp < -4 || exp > precision) {
xtype = PH7_FMT_EXP;
} else {
precision = precision - exp;
xtype = PH7_FMT_FLOAT;
}
} else {
flag_rtz = 0;
}
/*
** The "exp+precision" test causes output to be of type etEXP if
** the precision is too large to fit in buf[].
*/
nsd = 0;
if(xtype == PH7_FMT_FLOAT && exp + precision < PH7_FMT_BUFSIZ - 30) {
flag_dp = (precision > 0 || flag_alternateform);
if(prefix) {
*(zBuf++) = (char)prefix; /* Sign */
}
if(exp < 0) {
*(zBuf++) = '0'; /* Digits before "." */
} else
for(; exp >= 0; exp--) {
*(zBuf++) = (char)vxGetdigit(&realvalue, &nsd);
}
if(flag_dp) {
*(zBuf++) = '.'; /* The decimal point */
}
for(exp++; exp < 0 && precision > 0; precision--, exp++) {
*(zBuf++) = '0';
}
while((precision--) > 0) {
*(zBuf++) = (char)vxGetdigit(&realvalue, &nsd);
}
*(zBuf--) = 0; /* Null terminate */
if(flag_rtz && flag_dp) { /* Remove trailing zeros and "." */
while(zBuf >= zWorker && *zBuf == '0') {
*(zBuf--) = 0;
}
if(zBuf >= zWorker && *zBuf == '.') {
*(zBuf--) = 0;
}
}
zBuf++; /* point to next free slot */
} else { /* etEXP or etGENERIC */
flag_dp = (precision > 0 || flag_alternateform);
if(prefix) {
*(zBuf++) = (char)prefix; /* Sign */
}
*(zBuf++) = (char)vxGetdigit(&realvalue, &nsd); /* First digit */
if(flag_dp) {
*(zBuf++) = '.'; /* Decimal point */
}
while((precision--) > 0) {
*(zBuf++) = (char)vxGetdigit(&realvalue, &nsd);
}
zBuf--; /* point to last digit */
if(flag_rtz && flag_dp) { /* Remove tail zeros */
while(zBuf >= zWorker && *zBuf == '0') {
*(zBuf--) = 0;
}
if(zBuf >= zWorker && *zBuf == '.') {
*(zBuf--) = 0;
}
}
zBuf++; /* point to next free slot */
if(exp || flag_exp) {
*(zBuf++) = pInfo->charset[0];
if(exp < 0) {
*(zBuf++) = '-'; /* sign of exp */
exp = -exp;
} else {
*(zBuf++) = '+';
}
if(exp >= 100) {
*(zBuf++) = (char)((exp / 100) + '0'); /* 100's digit */
exp %= 100;
}
*(zBuf++) = (char)(exp / 10 + '0'); /* 10's digit */
*(zBuf++) = (char)(exp % 10 + '0'); /* 1's digit */
}
}
/* The converted number is in buf[] and zero terminated.Output it.
** Note that the number is in the usual order, not reversed as with
** integer conversions.*/
length = (int)(zBuf - zWorker);
zBuf = zWorker;
/* Special case: Add leading zeros if the flag_zeropad flag is
** set and we are not left justified */
if(flag_zeropad && !flag_leftjustify && length < width) {
int i;
int nPad = width - length;
for(i = width; i >= nPad; i--) {
zBuf[i] = zBuf[i - nPad];
}
i = prefix != 0;
while(nPad--) {
zBuf[i++] = '0';
}
length = width;
}
break;
}
default:
/* Invalid format specifer */
zWorker[0] = '?';
length = (int)sizeof(char);
break;
}
/*
** The text of the conversion is pointed to by "zBuf" and is
** "length" characters long.The field width is "width".Do
** the output.
*/
if(!flag_leftjustify) {
register int nspace;
nspace = width - length;
if(nspace > 0) {
while(nspace >= etSPACESIZE) {
rc = xConsumer(pCtx, spaces, etSPACESIZE, pUserData);
if(rc != SXRET_OK) {
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
nspace -= etSPACESIZE;
}
if(nspace > 0) {
rc = xConsumer(pCtx, spaces, (unsigned int)nspace, pUserData);
if(rc != SXRET_OK) {
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
}
}
}
if(length > 0) {
rc = xConsumer(pCtx, zBuf, (unsigned int)length, pUserData);
if(rc != SXRET_OK) {
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
}
if(flag_leftjustify) {
register int nspace;
nspace = width - length;
if(nspace > 0) {
while(nspace >= etSPACESIZE) {
rc = xConsumer(pCtx, spaces, etSPACESIZE, pUserData);
if(rc != SXRET_OK) {
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
nspace -= etSPACESIZE;
}
if(nspace > 0) {
rc = xConsumer(pCtx, spaces, (unsigned int)nspace, pUserData);
if(rc != SXRET_OK) {
return SXERR_ABORT; /* Consumer routine request an operation abort */
}
}
}
}
}/* for(;;) */
return SXRET_OK;
}
/*
* Callback [i.e: Formatted input consumer] of the sprintf function.
*/
static int sprintfConsumer(ph7_context *pCtx, const char *zInput, int nLen, void *pUserData) {
/* Consume directly */
ph7_result_string(pCtx, zInput, nLen);
SXUNUSED(pUserData); /* cc warning */
return PH7_OK;
}
/*
* string sprintf(string $format[,mixed $args [, mixed $... ]])
* Return a formatted string.
* Parameters
* $format
* The format string (see block comment above)
* Return
* A string produced according to the formatting string format.
*/
static int PH7_builtin_sprintf(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zFormat;
int nLen;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the string format */
zFormat = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Format the string */
PH7_InputFormat(sprintfConsumer, pCtx, zFormat, nLen, nArg, apArg, 0, FALSE);
return PH7_OK;
}
/*
* Callback [i.e: Formatted input consumer] of the printf function.
*/
static int printfConsumer(ph7_context *pCtx, const char *zInput, int nLen, void *pUserData) {
ph7_int64 *pCounter = (ph7_int64 *)pUserData;
/* Call the VM output consumer directly */
ph7_context_output(pCtx, zInput, nLen);
/* Increment counter */
*pCounter += nLen;
return PH7_OK;
}
/*
* int64 printf(string $format[,mixed $args[,mixed $... ]])
* Output a formatted string.
* Parameters
* $format
* See sprintf() for a description of format.
* Return
* The length of the outputted string.
*/
static int PH7_builtin_printf(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ph7_int64 nCounter = 0;
const char *zFormat;
int nLen;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return 0 */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Extract the string format */
zFormat = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Format the string */
PH7_InputFormat(printfConsumer, pCtx, zFormat, nLen, nArg, apArg, (void *)&nCounter, FALSE);
/* Return the length of the outputted string */
ph7_result_int64(pCtx, nCounter);
return PH7_OK;
}
/*
* int vprintf(string $format,array $args)
* Output a formatted string.
* Parameters
* $format
* See sprintf() for a description of format.
* Return
* The length of the outputted string.
*/
static int PH7_builtin_vprintf(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ph7_int64 nCounter = 0;
const char *zFormat;
ph7_hashmap *pMap;
SySet sArg;
int nLen, n;
if(nArg < 2 || !ph7_value_is_string(apArg[0]) || !ph7_value_is_array(apArg[1])) {
/* Missing/Invalid arguments,return 0 */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Extract the string format */
zFormat = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Point to the hashmap */
pMap = (ph7_hashmap *)apArg[1]->x.pOther;
/* Extract arguments from the hashmap */
n = PH7_HashmapValuesToSet(pMap, &sArg);
/* Format the string */
PH7_InputFormat(printfConsumer, pCtx, zFormat, nLen, n, (ph7_value **)SySetBasePtr(&sArg), (void *)&nCounter, TRUE);
/* Return the length of the outputted string */
ph7_result_int64(pCtx, nCounter);
/* Release the container */
SySetRelease(&sArg);
return PH7_OK;
}
/*
* int vsprintf(string $format,array $args)
* Output a formatted string.
* Parameters
* $format
* See sprintf() for a description of format.
* Return
* A string produced according to the formatting string format.
*/
static int PH7_builtin_vsprintf(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zFormat;
ph7_hashmap *pMap;
SySet sArg;
int nLen, n;
if(nArg < 2 || !ph7_value_is_string(apArg[0]) || !ph7_value_is_array(apArg[1])) {
/* Missing/Invalid arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the string format */
zFormat = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Point to hashmap */
pMap = (ph7_hashmap *)apArg[1]->x.pOther;
/* Extract arguments from the hashmap */
n = PH7_HashmapValuesToSet(pMap, &sArg);
/* Format the string */
PH7_InputFormat(sprintfConsumer, pCtx, zFormat, nLen, n, (ph7_value **)SySetBasePtr(&sArg), 0, TRUE);
/* Release the container */
SySetRelease(&sArg);
return PH7_OK;
}
/*
* Symisc eXtension.
* string size_format(int64 $size)
* Return a smart string representation of the given size [i.e: 64-bit integer]
* Example:
* echo size_format(1*1024*1024*1024);// 1GB
* echo size_format(512*1024*1024); // 512 MB
* echo size_format(file_size(/path/to/my/file_8192)); //8KB
* Parameter
* $size
* Entity size in bytes.
* Return
* Formatted string representation of the given size.
*/
static int PH7_builtin_size_format(ph7_context *pCtx, int nArg, ph7_value **apArg) {
/*Kilo*/ /*Mega*/ /*Giga*/ /*Tera*/ /*Peta*/ /*Exa*/ /*Zeta*/
static const char zUnit[] = {"KMGTPEZ"};
sxi32 nRest, i_32;
ph7_int64 iSize;
int c = -1; /* index in zUnit[] */
if(nArg < 1) {
/* Missing argument,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the given size */
iSize = ph7_value_to_int64(apArg[0]);
if(iSize < 100 /* Bytes */) {
/* Don't bother formatting,return immediately */
ph7_result_string(pCtx, "0.1 KB", (int)sizeof("0.1 KB") - 1);
return PH7_OK;
}
for(;;) {
nRest = (sxi32)(iSize & 0x3FF);
iSize >>= 10;
c++;
if((iSize & (~0 ^ 1023)) == 0) {
break;
}
}
nRest /= 100;
if(nRest > 9) {
nRest = 9;
}
if(iSize > 999) {
c++;
nRest = 9;
iSize = 0;
}
i_32 = (sxi32)iSize;
/* Format */
ph7_result_string_format(pCtx, "%d.%d %cB", i_32, nRest, zUnit[c]);
return PH7_OK;
}
/*
* string md5(string $str[,bool $raw_output = false])
* Calculate the md5 hash of a string.
* Parameter
* $str
* Input string
* $raw_output
* If the optional raw_output is set to TRUE, then the md5 digest
* is instead returned in raw binary format with a length of 16.
* Return
* MD5 Hash as a 32-character hexadecimal string.
*/
static int PH7_builtin_md5(ph7_context *pCtx, int nArg, ph7_value **apArg) {
unsigned char zDigest[16];
int raw_output = FALSE;
const void *pIn;
int nLen;
if(nArg < 1) {
/* Missing arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the input string */
pIn = (const void *)ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
if(nArg > 1 && ph7_value_is_bool(apArg[1])) {
raw_output = ph7_value_to_bool(apArg[1]);
}
/* Compute the MD5 digest */
SyMD5Compute(pIn, (sxu32)nLen, zDigest);
if(raw_output) {
/* Output raw digest */
ph7_result_string(pCtx, (const char *)zDigest, (int)sizeof(zDigest));
} else {
/* Perform a binary to hex conversion */
SyBinToHexConsumer((const void *)zDigest, sizeof(zDigest), HashConsumer, pCtx);
}
return PH7_OK;
}
/*
* string sha1(string $str[,bool $raw_output = false])
* Calculate the sha1 hash of a string.
* Parameter
* $str
* Input string
* $raw_output
* If the optional raw_output is set to TRUE, then the md5 digest
* is instead returned in raw binary format with a length of 16.
* Return
* SHA1 Hash as a 40-character hexadecimal string.
*/
static int PH7_builtin_sha1(ph7_context *pCtx, int nArg, ph7_value **apArg) {
unsigned char zDigest[20];
int raw_output = FALSE;
const void *pIn;
int nLen;
if(nArg < 1) {
/* Missing arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the input string */
pIn = (const void *)ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
if(nArg > 1 && ph7_value_is_bool(apArg[1])) {
raw_output = ph7_value_to_bool(apArg[1]);
}
/* Compute the SHA1 digest */
SySha1Compute(pIn, (sxu32)nLen, zDigest);
if(raw_output) {
/* Output raw digest */
ph7_result_string(pCtx, (const char *)zDigest, (int)sizeof(zDigest));
} else {
/* Perform a binary to hex conversion */
SyBinToHexConsumer((const void *)zDigest, sizeof(zDigest), HashConsumer, pCtx);
}
return PH7_OK;
}
/*
* int64 crc32(string $str)
* Calculates the crc32 polynomial of a strin.
* Parameter
* $str
* Input string
* Return
* CRC32 checksum of the given input (64-bit integer).
*/
static int PH7_builtin_crc32(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const void *pIn;
sxu32 nCRC;
int nLen;
if(nArg < 1) {
/* Missing arguments,return 0 */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Extract the input string */
pIn = (const void *)ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty string */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Calculate the sum */
nCRC = SyCrc32(pIn, (sxu32)nLen);
/* Return the CRC32 as 64-bit integer */
ph7_result_int64(pCtx, (ph7_int64)nCRC ^ 0xFFFFFFFF);
return PH7_OK;
}
/*
* Parse a CSV string and invoke the supplied callback for each processed xhunk.
*/
PH7_PRIVATE sxi32 PH7_ProcessCsv(
const char *zInput, /* Raw input */
int nByte, /* Input length */
int delim, /* Delimiter */
int encl, /* Enclosure */
int escape, /* Escape character */
sxi32(*xConsumer)(const char *, int, void *), /* User callback */
void *pUserData /* Last argument to xConsumer() */
) {
const char *zEnd = &zInput[nByte];
const char *zIn = zInput;
const char *zPtr;
int isEnc;
/* Start processing */
for(;;) {
if(zIn >= zEnd) {
/* No more input to process */
break;
}
isEnc = 0;
zPtr = zIn;
/* Find the first delimiter */
while(zIn < zEnd) {
if(zIn[0] == delim && !isEnc) {
/* Delimiter found,break imediately */
break;
} else if(zIn[0] == encl) {
/* Inside enclosure? */
isEnc = !isEnc;
} else if(zIn[0] == escape) {
/* Escape sequence */
zIn++;
}
/* Advance the cursor */
zIn++;
}
if(zIn > zPtr) {
int nByte = (int)(zIn - zPtr);
sxi32 rc;
/* Invoke the supllied callback */
if(zPtr[0] == encl) {
zPtr++;
nByte -= 2;
}
if(nByte > 0) {
rc = xConsumer(zPtr, nByte, pUserData);
if(rc == SXERR_ABORT) {
/* User callback request an operation abort */
break;
}
}
}
/* Ignore trailing delimiter */
while(zIn < zEnd && zIn[0] == delim) {
zIn++;
}
}
return SXRET_OK;
}
/*
* Default consumer callback for the CSV parsing routine defined above.
* All the processed input is insereted into an array passed as the last
* argument to this callback.
*/
PH7_PRIVATE sxi32 PH7_CsvConsumer(const char *zToken, int nTokenLen, void *pUserData) {
ph7_value *pArray = (ph7_value *)pUserData;
ph7_value sEntry;
SyString sToken;
/* Insert the token in the given array */
SyStringInitFromBuf(&sToken, zToken, nTokenLen);
/* Remove trailing and leading white spcaces and null bytes */
SyStringFullTrimSafe(&sToken);
if(sToken.nByte < 1) {
return SXRET_OK;
}
PH7_MemObjInitFromString(pArray->pVm, &sEntry, &sToken);
ph7_array_add_elem(pArray, 0, &sEntry);
PH7_MemObjRelease(&sEntry);
return SXRET_OK;
}
/*
* array str_getcsv(string $input[,string $delimiter = ','[,string $enclosure = '"' [,string $escape='\\']]])
* Parse a CSV string into an array.
* Parameters
* $input
* The string to parse.
* $delimiter
* Set the field delimiter (one character only).
* $enclosure
* Set the field enclosure character (one character only).
* $escape
* Set the escape character (one character only). Defaults as a backslash (\)
* Return
* An indexed array containing the CSV fields or NULL on failure.
*/
static int PH7_builtin_str_getcsv(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zInput, *zPtr;
ph7_value *pArray;
int delim = ','; /* Delimiter */
int encl = '"' ; /* Enclosure */
int escape = '\\'; /* Escape character */
int nLen;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Extract the raw input */
zInput = ph7_value_to_string(apArg[0], &nLen);
if(nArg > 1) {
int i;
if(ph7_value_is_string(apArg[1])) {
/* Extract the delimiter */
zPtr = ph7_value_to_string(apArg[1], &i);
if(i > 0) {
delim = zPtr[0];
}
}
if(nArg > 2) {
if(ph7_value_is_string(apArg[2])) {
/* Extract the enclosure */
zPtr = ph7_value_to_string(apArg[2], &i);
if(i > 0) {
encl = zPtr[0];
}
}
if(nArg > 3) {
if(ph7_value_is_string(apArg[3])) {
/* Extract the escape character */
zPtr = ph7_value_to_string(apArg[3], &i);
if(i > 0) {
escape = zPtr[0];
}
}
}
}
}
/* Create our array */
pArray = ph7_context_new_array(pCtx);
if(pArray == 0) {
PH7_VmMemoryError(pCtx->pVm);
}
/* Parse the raw input */
PH7_ProcessCsv(zInput, nLen, delim, encl, escape, PH7_CsvConsumer, pArray);
/* Return the freshly created array */
ph7_result_value(pCtx, pArray);
return PH7_OK;
}
/*
* Extract a tag name from a raw HTML input and insert it in the given
* container.
* Refer to [strip_tags()].
*/
static sxi32 AddTag(SySet *pSet, const char *zTag, int nByte) {
const char *zEnd = &zTag[nByte];
const char *zPtr;
SyString sEntry;
/* Strip tags */
for(;;) {
while(zTag < zEnd && (zTag[0] == '<' || zTag[0] == '/' || zTag[0] == '?'
|| zTag[0] == '!' || zTag[0] == '-' || ((unsigned char)zTag[0] < 0xc0 && SyisSpace(zTag[0])))) {
zTag++;
}
if(zTag >= zEnd) {
break;
}
zPtr = zTag;
/* Delimit the tag */
while(zTag < zEnd) {
if((unsigned char)zTag[0] >= 0xc0) {
/* UTF-8 stream */
zTag++;
SX_JMP_UTF8(zTag, zEnd);
} else if(!SyisAlphaNum(zTag[0])) {
break;
} else {
zTag++;
}
}
if(zTag > zPtr) {
/* Perform the insertion */
SyStringInitFromBuf(&sEntry, zPtr, (int)(zTag - zPtr));
SyStringFullTrim(&sEntry);
SySetPut(pSet, (const void *)&sEntry);
}
/* Jump the trailing '>' */
zTag++;
}
return SXRET_OK;
}
/*
* Check if the given HTML tag name is present in the given container.
* Return SXRET_OK if present.SXERR_NOTFOUND otherwise.
* Refer to [strip_tags()].
*/
static sxi32 FindTag(SySet *pSet, const char *zTag, int nByte) {
if(SySetUsed(pSet) > 0) {
const char *zCur, *zEnd = &zTag[nByte];
SyString sTag;
while(zTag < zEnd && (zTag[0] == '<' || zTag[0] == '/' || zTag[0] == '?' ||
((unsigned char)zTag[0] < 0xc0 && SyisSpace(zTag[0])))) {
zTag++;
}
/* Delimit the tag */
zCur = zTag;
while(zTag < zEnd) {
if((unsigned char)zTag[0] >= 0xc0) {
/* UTF-8 stream */
zTag++;
SX_JMP_UTF8(zTag, zEnd);
} else if(!SyisAlphaNum(zTag[0])) {
break;
} else {
zTag++;
}
}
SyStringInitFromBuf(&sTag, zCur, zTag - zCur);
/* Trim leading white spaces and null bytes */
SyStringLeftTrimSafe(&sTag);
if(sTag.nByte > 0) {
SyString *aEntry, *pEntry;
sxi32 rc;
sxu32 n;
/* Perform the lookup */
aEntry = (SyString *)SySetBasePtr(pSet);
for(n = 0 ; n < SySetUsed(pSet) ; ++n) {
pEntry = &aEntry[n];
/* Do the comparison */
rc = SyStringCmp(pEntry, &sTag, SyStrnicmp);
if(!rc) {
return SXRET_OK;
}
}
}
}
/* No such tag */
return SXERR_NOTFOUND;
}
/*
* This function tries to return a string [i.e: in the call context result buffer]
* with all NUL bytes,HTML and PHP tags stripped from a given string.
* Refer to [strip_tags()].
*/
PH7_PRIVATE sxi32 PH7_StripTagsFromString(ph7_context *pCtx, const char *zIn, int nByte, const char *zTaglist, int nTaglen) {
const char *zEnd = &zIn[nByte];
const char *zPtr, *zTag;
SySet sSet;
/* initialize the set of allowed tags */
SySetInit(&sSet, &pCtx->pVm->sAllocator, sizeof(SyString));
if(nTaglen > 0) {
/* Set of allowed tags */
AddTag(&sSet, zTaglist, nTaglen);
}
/* Set the empty string */
ph7_result_string(pCtx, "", 0);
/* Start processing */
for(;;) {
if(zIn >= zEnd) {
/* No more input to process */
break;
}
zPtr = zIn;
/* Find a tag */
while(zIn < zEnd && zIn[0] != '<' && zIn[0] != 0 /* NUL byte */) {
zIn++;
}
if(zIn > zPtr) {
/* Consume raw input */
ph7_result_string(pCtx, zPtr, (int)(zIn - zPtr));
}
/* Ignore trailing null bytes */
while(zIn < zEnd && zIn[0] == 0) {
zIn++;
}
if(zIn >= zEnd) {
/* No more input to process */
break;
}
if(zIn[0] == '<') {
sxi32 rc;
zTag = zIn++;
/* Delimit the tag */
while(zIn < zEnd && zIn[0] != '>') {
zIn++;
}
if(zIn < zEnd) {
zIn++; /* Ignore the trailing closing tag */
}
/* Query the set */
rc = FindTag(&sSet, zTag, (int)(zIn - zTag));
if(rc == SXRET_OK) {
/* Keep the tag */
ph7_result_string(pCtx, zTag, (int)(zIn - zTag));
}
}
}
/* Cleanup */
SySetRelease(&sSet);
return SXRET_OK;
}
/*
* string strip_tags(string $str[,string $allowable_tags])
* Strip HTML and PHP tags from a string.
* Parameters
* $str
* The input string.
* $allowable_tags
* You can use the optional second parameter to specify tags which should not be stripped.
* Return
* Returns the stripped string.
*/
static int PH7_builtin_strip_tags(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zTaglist = 0;
const char *zString;
int nTaglen = 0;
int nLen;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Point to the raw string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nArg > 1 && ph7_value_is_string(apArg[1])) {
/* Allowed tag */
zTaglist = ph7_value_to_string(apArg[1], &nTaglen);
}
/* Process input */
PH7_StripTagsFromString(pCtx, zString, nLen, zTaglist, nTaglen);
return PH7_OK;
}
/*
* string str_shuffle(string $str)
* Randomly shuffles a string.
* Parameters
* $str
* The input string.
* Return
* Returns the shuffled string.
*/
static int PH7_builtin_str_shuffle(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString;
int nLen, i, c;
sxu32 iR;
if(nArg < 1) {
/* Missing arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Nothing to shuffle */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Shuffle the string */
for(i = 0 ; i < nLen ; ++i) {
/* Generate a random number first */
iR = ph7_context_random_num(pCtx);
/* Extract a random offset */
c = zString[iR % nLen];
/* Append it */
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
}
return PH7_OK;
}
/*
* array str_split(string $string[,int $split_length = 1 ])
* Convert a string to an array.
* Parameters
* $str
* The input string.
* $split_length
* Maximum length of the chunk.
* Return
* If the optional split_length parameter is specified, the returned array
* will be broken down into chunks with each being split_length in length, otherwise
* each chunk will be one character in length. FALSE is returned if split_length is less than 1.
* If the split_length length exceeds the length of string, the entire string is returned
* as the first (and only) array element.
*/
static int PH7_builtin_str_split(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zEnd;
ph7_value *pArray, *pValue;
int split_len;
int nLen;
if(nArg < 1) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Point to the target string */
zString = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Nothing to process,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
split_len = (int)sizeof(char);
if(nArg > 1) {
/* Split length */
split_len = ph7_value_to_int(apArg[1]);
if(split_len < 1) {
/* Invalid length,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
if(split_len > nLen) {
split_len = nLen;
}
}
/* Create the array and the scalar value */
pArray = ph7_context_new_array(pCtx);
/*Chunk value */
pValue = ph7_context_new_scalar(pCtx);
if(pValue == 0 || pArray == 0) {
/* Return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Point to the end of the string */
zEnd = &zString[nLen];
/* Perform the requested operation */
for(;;) {
int nMax;
if(zString >= zEnd) {
/* No more input to process */
break;
}
nMax = (int)(zEnd - zString);
if(nMax < split_len) {
split_len = nMax;
}
/* Copy the current chunk */
ph7_value_string(pValue, zString, split_len);
/* Insert it */
ph7_array_add_elem(pArray, 0, pValue); /* Will make it's own copy */
/* reset the string cursor */
ph7_value_reset_string_cursor(pValue);
/* Update position */
zString += split_len;
}
/*
* Return the array.
* Don't worry about freeing memory, everything will be automatically released
* upon we return from this function.
*/
ph7_result_value(pCtx, pArray);
return PH7_OK;
}
/*
* Tokenize a raw string and extract the first non-space token.
* Refer to [strspn()].
*/
static sxi32 ExtractNonSpaceToken(const char **pzIn, const char *zEnd, SyString *pOut) {
const char *zIn = *pzIn;
const char *zPtr;
/* Ignore leading white spaces */
while(zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0])) {
zIn++;
}
if(zIn >= zEnd) {
/* End of input */
return SXERR_EOF;
}
zPtr = zIn;
/* Extract the token */
while(zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && !SyisSpace(zIn[0])) {
zIn++;
}
SyStringInitFromBuf(pOut, zPtr, zIn - zPtr);
/* Synchronize pointers */
*pzIn = zIn;
/* Return to the caller */
return SXRET_OK;
}
/*
* Check if the given string contains only characters from the given mask.
* return the longest match.
* Refer to [strspn()].
*/
static int LongestStringMask(const char *zString, int nLen, const char *zMask, int nMaskLen) {
const char *zEnd = &zString[nLen];
const char *zIn = zString;
int i, c;
for(;;) {
if(zString >= zEnd) {
break;
}
/* Extract current character */
c = zString[0];
/* Perform the lookup */
for(i = 0 ; i < nMaskLen ; i++) {
if(c == zMask[i]) {
/* Character found */
break;
}
}
if(i >= nMaskLen) {
/* Character not in the current mask,break immediately */
break;
}
/* Advance cursor */
zString++;
}
/* Longest match */
return (int)(zString - zIn);
}
/*
* Do the reverse operation of the previous function [i.e: LongestStringMask()].
* Refer to [strcspn()].
*/
static int LongestStringMask2(const char *zString, int nLen, const char *zMask, int nMaskLen) {
const char *zEnd = &zString[nLen];
const char *zIn = zString;
int i, c;
for(;;) {
if(zString >= zEnd) {
break;
}
/* Extract current character */
c = zString[0];
/* Perform the lookup */
for(i = 0 ; i < nMaskLen ; i++) {
if(c == zMask[i]) {
break;
}
}
if(i < nMaskLen) {
/* Character in the current mask,break immediately */
break;
}
/* Advance cursor */
zString++;
}
/* Longest match */
return (int)(zString - zIn);
}
/*
* int strspn(string $str,string $mask[,int $start[,int $length]])
* Finds the length of the initial segment of a string consisting entirely
* of characters contained within a given mask.
* Parameters
* $str
* The input string.
* $mask
* The list of allowable characters.
* $start
* The position in subject to start searching.
* If start is given and is non-negative, then strspn() will begin examining
* subject at the start'th position. For instance, in the string 'abcdef', the character
* at position 0 is 'a', the character at position 2 is 'c', and so forth.
* If start is given and is negative, then strspn() will begin examining subject at the
* start'th position from the end of subject.
* $length
* The length of the segment from subject to examine.
* If length is given and is non-negative, then subject will be examined for length
* characters after the starting position.
* If lengthis given and is negative, then subject will be examined from the starting
* position up to length characters from the end of subject.
* Return
* Returns the length of the initial segment of subject which consists entirely of characters
* in mask.
*/
static int PH7_builtin_strspn(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zMask, *zEnd;
int iMasklen, iLen;
SyString sToken;
int iCount = 0;
int rc;
if(nArg < 2) {
/* Missing agruments,return zero */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &iLen);
/* Extract the mask */
zMask = ph7_value_to_string(apArg[1], &iMasklen);
if(iLen < 1 || iMasklen < 1) {
/* Nothing to process,return zero */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
if(nArg > 2) {
int nOfft;
/* Extract the offset */
nOfft = ph7_value_to_int(apArg[2]);
if(nOfft < 0) {
const char *zBase = &zString[iLen + nOfft];
if(zBase > zString) {
iLen = (int)(&zString[iLen] - zBase);
zString = zBase;
} else {
/* Invalid offset */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
} else {
if(nOfft >= iLen) {
/* Invalid offset */
ph7_result_int(pCtx, 0);
return PH7_OK;
} else {
/* Update offset */
zString += nOfft;
iLen -= nOfft;
}
}
if(nArg > 3) {
int iUserlen;
/* Extract the desired length */
iUserlen = ph7_value_to_int(apArg[3]);
if(iUserlen > 0 && iUserlen < iLen) {
iLen = iUserlen;
}
}
}
/* Point to the end of the string */
zEnd = &zString[iLen];
/* Extract the first non-space token */
rc = ExtractNonSpaceToken(&zString, zEnd, &sToken);
if(rc == SXRET_OK && sToken.nByte > 0) {
/* Compare against the current mask */
iCount = LongestStringMask(sToken.zString, (int)sToken.nByte, zMask, iMasklen);
}
/* Longest match */
ph7_result_int(pCtx, iCount);
return PH7_OK;
}
/*
* int strcspn(string $str,string $mask[,int $start[,int $length]])
* Find length of initial segment not matching mask.
* Parameters
* $str
* The input string.
* $mask
* The list of not allowed characters.
* $start
* The position in subject to start searching.
* If start is given and is non-negative, then strspn() will begin examining
* subject at the start'th position. For instance, in the string 'abcdef', the character
* at position 0 is 'a', the character at position 2 is 'c', and so forth.
* If start is given and is negative, then strspn() will begin examining subject at the
* start'th position from the end of subject.
* $length
* The length of the segment from subject to examine.
* If length is given and is non-negative, then subject will be examined for length
* characters after the starting position.
* If lengthis given and is negative, then subject will be examined from the starting
* position up to length characters from the end of subject.
* Return
* Returns the length of the segment as an integer.
*/
static int PH7_builtin_strcspn(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zMask, *zEnd;
int iMasklen, iLen;
SyString sToken;
int iCount = 0;
int rc;
if(nArg < 2) {
/* Missing agruments,return zero */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
/* Extract the target string */
zString = ph7_value_to_string(apArg[0], &iLen);
/* Extract the mask */
zMask = ph7_value_to_string(apArg[1], &iMasklen);
if(iLen < 1) {
/* Nothing to process,return zero */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
if(iMasklen < 1) {
/* No given mask,return the string length */
ph7_result_int(pCtx, iLen);
return PH7_OK;
}
if(nArg > 2) {
int nOfft;
/* Extract the offset */
nOfft = ph7_value_to_int(apArg[2]);
if(nOfft < 0) {
const char *zBase = &zString[iLen + nOfft];
if(zBase > zString) {
iLen = (int)(&zString[iLen] - zBase);
zString = zBase;
} else {
/* Invalid offset */
ph7_result_int(pCtx, 0);
return PH7_OK;
}
} else {
if(nOfft >= iLen) {
/* Invalid offset */
ph7_result_int(pCtx, 0);
return PH7_OK;
} else {
/* Update offset */
zString += nOfft;
iLen -= nOfft;
}
}
if(nArg > 3) {
int iUserlen;
/* Extract the desired length */
iUserlen = ph7_value_to_int(apArg[3]);
if(iUserlen > 0 && iUserlen < iLen) {
iLen = iUserlen;
}
}
}
/* Point to the end of the string */
zEnd = &zString[iLen];
/* Extract the first non-space token */
rc = ExtractNonSpaceToken(&zString, zEnd, &sToken);
if(rc == SXRET_OK && sToken.nByte > 0) {
/* Compare against the current mask */
iCount = LongestStringMask2(sToken.zString, (int)sToken.nByte, zMask, iMasklen);
}
/* Longest match */
ph7_result_int(pCtx, iCount);
return PH7_OK;
}
/*
* string strpbrk(string $haystack,string $char_list)
* Search a string for any of a set of characters.
* Parameters
* $haystack
* The string where char_list is looked for.
* $char_list
* This parameter is case sensitive.
* Return
* Returns a string starting from the character found, or FALSE if it is not found.
*/
static int PH7_builtin_strpbrk(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zString, *zList, *zEnd;
int iLen, iListLen, i, c;
sxu32 nOfft, nMax;
sxi32 rc;
if(nArg < 2) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the haystack and the char list */
zString = ph7_value_to_string(apArg[0], &iLen);
zList = ph7_value_to_string(apArg[1], &iListLen);
if(iLen < 1) {
/* Nothing to process,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Point to the end of the string */
zEnd = &zString[iLen];
nOfft = nMax = SXU32_HIGH;
/* perform the requested operation */
for(i = 0 ; i < iListLen ; i++) {
c = zList[i];
rc = SyByteFind(zString, (sxu32)iLen, c, &nMax);
if(rc == SXRET_OK) {
if(nMax < nOfft) {
nOfft = nMax;
}
}
}
if(nOfft == SXU32_HIGH) {
/* No such substring,return FALSE */
ph7_result_bool(pCtx, 0);
} else {
/* Return the substring */
ph7_result_string(pCtx, &zString[nOfft], (int)(zEnd - &zString[nOfft]));
}
return PH7_OK;
}
/*
* string soundex(string $str)
* Calculate the soundex key of a string.
* Parameters
* $str
* The input string.
* Return
* Returns the soundex key as a string.
* Note:
* This implementation is based on the one found in the SQLite3
* source tree.
*/
static int PH7_builtin_soundex(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const unsigned char *zIn;
char zResult[8];
int i, j;
static const unsigned char iCode[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0,
1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0,
0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0,
1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0,
};
if(nArg < 1) {
/* Missing arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
zIn = (unsigned char *)ph7_value_to_string(apArg[0], 0);
for(i = 0; zIn[i] && zIn[i] < 0xc0 && !SyisAlpha(zIn[i]); i++) {}
if(zIn[i]) {
unsigned char prevcode = iCode[zIn[i] & 0x7f];
zResult[0] = (char)SyToUpper(zIn[i]);
for(j = 1; j < 4 && zIn[i]; i++) {
int code = iCode[zIn[i] & 0x7f];
if(code > 0) {
if(code != prevcode) {
prevcode = (unsigned char)code;
zResult[j++] = (char)code + '0';
}
} else {
prevcode = 0;
}
}
while(j < 4) {
zResult[j++] = '0';
}
ph7_result_string(pCtx, zResult, 4);
} else {
ph7_result_string(pCtx, "?000", 4);
}
return PH7_OK;
}
/*
* string wordwrap(string $str[,int $width = 75[,string $break = "\n"]])
* Wraps a string to a given number of characters.
* Parameters
* $str
* The input string.
* $width
* The column width.
* $break
* The line is broken using the optional break parameter.
* Return
* Returns the given string wrapped at the specified column.
*/
static int PH7_builtin_wordwrap(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn, *zEnd, *zBreak;
int iLen, iBreaklen, iChunk;
if(nArg < 1) {
/* Missing arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the input string */
zIn = ph7_value_to_string(apArg[0], &iLen);
if(iLen < 1) {
/* Nothing to process,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Chunk length */
iChunk = 75;
iBreaklen = 0;
zBreak = ""; /* cc warning */
if(nArg > 1) {
iChunk = ph7_value_to_int(apArg[1]);
if(iChunk < 1) {
iChunk = 75;
}
if(nArg > 2) {
zBreak = ph7_value_to_string(apArg[2], &iBreaklen);
}
}
if(iBreaklen < 1) {
/* Set a default column break */
#ifdef __WINNT__
zBreak = "\r\n";
iBreaklen = (int)sizeof("\r\n") - 1;
#else
zBreak = "\n";
iBreaklen = (int)sizeof(char);
#endif
}
/* Perform the requested operation */
zEnd = &zIn[iLen];
for(;;) {
int nMax;
if(zIn >= zEnd) {
/* No more input to process */
break;
}
nMax = (int)(zEnd - zIn);
if(iChunk > nMax) {
iChunk = nMax;
}
/* Append the column first */
ph7_result_string(pCtx, zIn, iChunk); /* Will make it's own copy */
/* Advance the cursor */
zIn += iChunk;
if(zIn < zEnd) {
/* Append the line break */
ph7_result_string(pCtx, zBreak, iBreaklen);
}
}
return PH7_OK;
}
/*
* Check if the given character is a member of the given mask.
* Return TRUE on success. FALSE otherwise.
* Refer to [strtok()].
*/
static int CheckMask(int c, const char *zMask, int nMasklen, int *pOfft) {
int i;
for(i = 0 ; i < nMasklen ; ++i) {
if(c == zMask[i]) {
if(pOfft) {
*pOfft = i;
}
return TRUE;
}
}
return FALSE;
}
/*
* Extract a single token from the input stream.
* Refer to [strtok()].
*/
static sxi32 ExtractToken(const char **pzIn, const char *zEnd, const char *zMask, int nMasklen, SyString *pOut) {
const char *zIn = *pzIn;
const char *zPtr;
/* Ignore leading delimiter */
while(zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && CheckMask(zIn[0], zMask, nMasklen, 0)) {
zIn++;
}
if(zIn >= zEnd) {
/* End of input */
return SXERR_EOF;
}
zPtr = zIn;
/* Extract the token */
while(zIn < zEnd) {
if((unsigned char)zIn[0] >= 0xc0) {
/* UTF-8 stream */
zIn++;
SX_JMP_UTF8(zIn, zEnd);
} else {
if(CheckMask(zIn[0], zMask, nMasklen, 0)) {
break;
}
zIn++;
}
}
SyStringInitFromBuf(pOut, zPtr, zIn - zPtr);
/* Update the cursor */
*pzIn = zIn;
/* Return to the caller */
return SXRET_OK;
}
/* strtok auxiliary private data */
typedef struct strtok_aux_data strtok_aux_data;
struct strtok_aux_data {
const char *zDup; /* Complete duplicate of the input */
const char *zIn; /* Current input stream */
const char *zEnd; /* End of input */
};
/*
* string strtok(string $str,string $token)
* string strtok(string $token)
* strtok() splits a string (str) into smaller strings (tokens), with each token
* being delimited by any character from token. That is, if you have a string like
* "This is an example string" you could tokenize this string into its individual
* words by using the space character as the token.
* Note that only the first call to strtok uses the string argument. Every subsequent
* call to strtok only needs the token to use, as it keeps track of where it is in
* the current string. To start over, or to tokenize a new string you simply call strtok
* with the string argument again to initialize it. Note that you may put multiple tokens
* in the token parameter. The string will be tokenized when any one of the characters in
* the argument are found.
* Parameters
* $str
* The string being split up into smaller strings (tokens).
* $token
* The delimiter used when splitting up str.
* Return
* Current token or FALSE on EOF.
*/
static int PH7_builtin_strtok(ph7_context *pCtx, int nArg, ph7_value **apArg) {
strtok_aux_data *pAux;
const char *zMask;
SyString sToken;
int nMasklen;
sxi32 rc;
if(nArg < 2) {
/* Extract top aux data */
pAux = (strtok_aux_data *)ph7_context_peek_aux_data(pCtx);
if(pAux == 0) {
/* No aux data,return FALSE */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
nMasklen = 0;
zMask = ""; /* cc warning */
if(nArg > 0) {
/* Extract the mask */
zMask = ph7_value_to_string(apArg[0], &nMasklen);
}
if(nMasklen < 1) {
/* Invalid mask,return FALSE */
ph7_context_free_chunk(pCtx, (void *)pAux->zDup);
ph7_context_free_chunk(pCtx, pAux);
(void)ph7_context_pop_aux_data(pCtx);
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the token */
rc = ExtractToken(&pAux->zIn, pAux->zEnd, zMask, nMasklen, &sToken);
if(rc != SXRET_OK) {
/* EOF ,discard the aux data */
ph7_context_free_chunk(pCtx, (void *)pAux->zDup);
ph7_context_free_chunk(pCtx, pAux);
(void)ph7_context_pop_aux_data(pCtx);
ph7_result_string(pCtx, "", 0);
} else {
/* Return the extracted token */
ph7_result_string(pCtx, sToken.zString, (int)sToken.nByte);
}
} else {
const char *zInput, *zCur;
char *zDup;
int nLen;
/* Extract the raw input */
zCur = zInput = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Empty input,return FALSE */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the mask */
zMask = ph7_value_to_string(apArg[1], &nMasklen);
if(nMasklen < 1) {
/* Set a default mask */
#define TOK_MASK " \n\t\r\f"
zMask = TOK_MASK;
nMasklen = (int)sizeof(TOK_MASK) - 1;
#undef TOK_MASK
}
/* Extract a single token */
rc = ExtractToken(&zInput, &zInput[nLen], zMask, nMasklen, &sToken);
if(rc != SXRET_OK) {
/* Empty input */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
} else {
/* Return the extracted token */
ph7_result_string(pCtx, sToken.zString, (int)sToken.nByte);
}
/* Create our auxiliary data and copy the input */
pAux = (strtok_aux_data *)ph7_context_alloc_chunk(pCtx, sizeof(strtok_aux_data), TRUE, FALSE);
if(pAux) {
nLen -= (int)(zInput - zCur);
if(nLen < 1) {
ph7_context_free_chunk(pCtx, pAux);
return PH7_OK;
}
/* Duplicate input */
zDup = (char *)ph7_context_alloc_chunk(pCtx, (unsigned int)(nLen + 1), TRUE, FALSE);
if(zDup) {
SyMemcpy(zInput, zDup, (sxu32)nLen);
/* Register the aux data */
pAux->zDup = pAux->zIn = zDup;
pAux->zEnd = &zDup[nLen];
ph7_context_push_aux_data(pCtx, pAux);
}
}
}
return PH7_OK;
}
/*
* string str_pad(string $input,int $pad_length[,string $pad_string = " " [,int $pad_type = STR_PAD_RIGHT]])
* Pad a string to a certain length with another string
* Parameters
* $input
* The input string.
* $pad_length
* If the value of pad_length is negative, less than, or equal to the length of the input
* string, no padding takes place.
* $pad_string
* Note:
* The pad_string WIIL NOT BE truncated if the required number of padding characters can't be evenly
* divided by the pad_string's length.
* $pad_type
* Optional argument pad_type can be STR_PAD_RIGHT, STR_PAD_LEFT, or STR_PAD_BOTH. If pad_type
* is not specified it is assumed to be STR_PAD_RIGHT.
* Return
* The padded string.
*/
static int PH7_builtin_str_pad(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int iLen, iPadlen, iType, i, iDiv, iStrpad, iRealPad, jPad;
const char *zIn, *zPad;
if(nArg < 2) {
/* Missing arguments,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Extract the target string */
zIn = ph7_value_to_string(apArg[0], &iLen);
/* Padding length */
iRealPad = iPadlen = ph7_value_to_int(apArg[1]);
if(iPadlen > 0) {
iPadlen -= iLen;
}
if(iPadlen < 1) {
/* Return the string verbatim */
ph7_result_string(pCtx, zIn, iLen);
return PH7_OK;
}
zPad = " "; /* Whitespace padding */
iStrpad = (int)sizeof(char);
iType = 1 ; /* STR_PAD_RIGHT */
if(nArg > 2) {
/* Padding string */
zPad = ph7_value_to_string(apArg[2], &iStrpad);
if(iStrpad < 1) {
/* Empty string */
zPad = " "; /* Whitespace padding */
iStrpad = (int)sizeof(char);
}
if(nArg > 3) {
/* Padd type */
iType = ph7_value_to_int(apArg[3]);
if(iType != 0 /* STR_PAD_LEFT */ && iType != 2 /* STR_PAD_BOTH */) {
iType = 1 ; /* STR_PAD_RIGHT */
}
}
}
iDiv = 1;
if(iType == 2) {
iDiv = 2; /* STR_PAD_BOTH */
}
/* Perform the requested operation */
if(iType == 0 /* STR_PAD_LEFT */ || iType == 2 /* STR_PAD_BOTH */) {
jPad = iStrpad;
for(i = 0 ; i < iPadlen / iDiv ; i += jPad) {
/* Padding */
if((int)ph7_context_result_buf_length(pCtx) + iLen + jPad >= iRealPad) {
break;
}
ph7_result_string(pCtx, zPad, jPad);
}
if(iType == 0 /* STR_PAD_LEFT */) {
while((int)ph7_context_result_buf_length(pCtx) + iLen < iRealPad) {
jPad = iRealPad - (iLen + (int)ph7_context_result_buf_length(pCtx));
if(jPad > iStrpad) {
jPad = iStrpad;
}
if(jPad < 1) {
break;
}
ph7_result_string(pCtx, zPad, jPad);
}
}
}
if(iLen > 0) {
/* Append the input string */
ph7_result_string(pCtx, zIn, iLen);
}
if(iType == 1 /* STR_PAD_RIGHT */ || iType == 2 /* STR_PAD_BOTH */) {
for(i = 0 ; i < iPadlen / iDiv ; i += iStrpad) {
/* Padding */
if((int)ph7_context_result_buf_length(pCtx) + iStrpad >= iRealPad) {
break;
}
ph7_result_string(pCtx, zPad, iStrpad);
}
while((int)ph7_context_result_buf_length(pCtx) < iRealPad) {
jPad = iRealPad - (int)ph7_context_result_buf_length(pCtx);
if(jPad > iStrpad) {
jPad = iStrpad;
}
if(jPad < 1) {
break;
}
ph7_result_string(pCtx, zPad, jPad);
}
}
return PH7_OK;
}
/*
* String replacement private data.
*/
typedef struct str_replace_data str_replace_data;
struct str_replace_data {
/* The following two fields are only used by the strtr function */
SyBlob *pWorker; /* Working buffer */
ProcStringMatch xMatch; /* Pattern match routine */
/* The following two fields are only used by the str_replace function */
SySet *pCollector; /* Argument collector*/
ph7_context *pCtx; /* Call context */
};
/*
* Remove a substring.
*/
#define STRDEL(SRC,SLEN,OFFT,ILEN){\
for(;;){\
if( OFFT + ILEN >= SLEN ) break; SRC[OFFT] = SRC[OFFT+ILEN]; ++OFFT;\
}\
}
/*
* Shift right and insert algorithm.
*/
#define SHIFTRANDINSERT(SRC,LEN,OFFT,ENTRY,ELEN){\
sxu32 INLEN = LEN - OFFT;\
for(;;){\
if( LEN > 0 ){ LEN--; } if(INLEN < 1 ) break; SRC[LEN + ELEN] = SRC[LEN] ; --INLEN; \
}\
for(;;){\
if(ELEN < 1)break; SRC[OFFT] = ENTRY[0]; OFFT++; ENTRY++; --ELEN;\
}\
}
/*
* Replace all occurrences of the search string at offset (nOfft) with the given
* replacement string [i.e: zReplace].
*/
static int StringReplace(SyBlob *pWorker, sxu32 nOfft, int nLen, const char *zReplace, int nReplen) {
char *zInput = (char *)SyBlobData(pWorker);
sxu32 n, m;
n = SyBlobLength(pWorker);
m = nOfft;
/* Delete the old entry */
STRDEL(zInput, n, m, nLen);
SyBlobLength(pWorker) -= nLen;
if(nReplen > 0) {
sxi32 iRep = nReplen;
sxi32 rc;
/*
* Make sure the working buffer is big enough to hold the replacement
* string.
*/
rc = SyBlobAppend(pWorker, 0/* Grow without an append operation*/, (sxu32)nReplen);
if(rc != SXRET_OK) {
/* Simply ignore any memory failure problem */
return SXRET_OK;
}
/* Perform the insertion now */
zInput = (char *)SyBlobData(pWorker);
n = SyBlobLength(pWorker);
SHIFTRANDINSERT(zInput, n, nOfft, zReplace, iRep);
SyBlobLength(pWorker) += nReplen;
}
return SXRET_OK;
}
/*
* String replacement walker callback.
* The following callback is invoked for each array entry that hold
* the replace string.
* Refer to the strtr() implementation for more information.
*/
static int StringReplaceWalker(ph7_value *pKey, ph7_value *pData, void *pUserData) {
str_replace_data *pRepData = (str_replace_data *)pUserData;
const char *zTarget, *zReplace;
SyBlob *pWorker;
int tLen, nLen;
sxu32 nOfft;
sxi32 rc;
/* Point to the working buffer */
pWorker = pRepData->pWorker;
if(!ph7_value_is_string(pKey)) {
/* Target and replace must be a string */
return PH7_OK;
}
/* Extract the target and the replace */
zTarget = ph7_value_to_string(pKey, &tLen);
if(tLen < 1) {
/* Empty target,return immediately */
return PH7_OK;
}
/* Perform a pattern search */
rc = pRepData->xMatch(SyBlobData(pWorker), SyBlobLength(pWorker), (const void *)zTarget, (sxu32)tLen, &nOfft);
if(rc != SXRET_OK) {
/* Pattern not found */
return PH7_OK;
}
/* Extract the replace string */
zReplace = ph7_value_to_string(pData, &nLen);
/* Perform the replace process */
StringReplace(pWorker, nOfft, tLen, zReplace, nLen);
/* All done */
return PH7_OK;
}
/*
* The following walker callback is invoked by the str_rplace() function inorder
* to collect search/replace string.
* This callback is invoked only if the given argument is of type array.
*/
static int StrReplaceWalker(ph7_value *pKey, ph7_value *pData, void *pUserData) {
str_replace_data *pRep = (str_replace_data *)pUserData;
SyString sWorker;
const char *zIn;
int nByte;
/* Extract a string representation of the given argument */
zIn = ph7_value_to_string(pData, &nByte);
SyStringInitFromBuf(&sWorker, 0, 0);
if(nByte > 0) {
char *zDup;
/* Duplicate the chunk */
zDup = (char *)ph7_context_alloc_chunk(pRep->pCtx, (unsigned int)nByte, FALSE,
TRUE /* Release the chunk automatically,upon this context is destroyed */
);
if(zDup == 0) {
/* Memory failure problem */
PH7_VmMemoryError(pRep->pCtx->pVm);
}
SyMemcpy(zIn, zDup, (sxu32)nByte);
/* Save the chunk */
SyStringInitFromBuf(&sWorker, zDup, nByte);
}
/* Save for later processing */
SySetPut(pRep->pCollector, (const void *)&sWorker);
/* All done */
SXUNUSED(pKey); /* cc warning */
return PH7_OK;
}
/*
* mixed str_replace(mixed $search,mixed $replace,mixed $subject[,int &$count ])
* mixed str_ireplace(mixed $search,mixed $replace,mixed $subject[,int &$count ])
* Replace all occurrences of the search string with the replacement string.
* Parameters
* If search and replace are arrays, then str_replace() takes a value from each
* array and uses them to search and replace on subject. If replace has fewer values
* than search, then an empty string is used for the rest of replacement values.
* If search is an array and replace is a string, then this replacement string is used
* for every value of search. The converse would not make sense, though.
* If search or replace are arrays, their elements are processed first to last.
* $search
* The value being searched for, otherwise known as the needle. An array may be used
* to designate multiple needles.
* $replace
* The replacement value that replaces found search values. An array may be used
* to designate multiple replacements.
* $subject
* The string or array being searched and replaced on, otherwise known as the haystack.
* If subject is an array, then the search and replace is performed with every entry
* of subject, and the return value is an array as well.
* $count (Not used)
* If passed, this will be set to the number of replacements performed.
* Return
* This function returns a string or an array with the replaced values.
*/
static int PH7_builtin_str_replace(ph7_context *pCtx, int nArg, ph7_value **apArg) {
SyString sTemp, *pSearch, *pReplace;
ProcStringMatch xMatch;
const char *zIn, *zFunc;
str_replace_data sRep;
SyBlob sWorker;
SySet sReplace;
SySet sSearch;
int rep_str;
int nByte;
sxi32 rc;
if(nArg < 3) {
/* Missing/Invalid arguments,return null */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Initialize fields */
SySetInit(&sSearch, &pCtx->pVm->sAllocator, sizeof(SyString));
SySetInit(&sReplace, &pCtx->pVm->sAllocator, sizeof(SyString));
SyBlobInit(&sWorker, &pCtx->pVm->sAllocator);
SyZero(&sRep, sizeof(str_replace_data));
sRep.pCtx = pCtx;
sRep.pCollector = &sSearch;
rep_str = 0;
/* Extract the subject */
zIn = ph7_value_to_string(apArg[2], &nByte);
if(nByte < 1) {
/* Nothing to replace,return the empty string */
ph7_result_string(pCtx, "", 0);
return PH7_OK;
}
/* Copy the subject */
SyBlobAppend(&sWorker, (const void *)zIn, (sxu32)nByte);
/* Search string */
if(ph7_value_is_array(apArg[0])) {
/* Collect search string */
ph7_array_walk(apArg[0], StrReplaceWalker, &sRep);
} else {
/* Single pattern */
zIn = ph7_value_to_string(apArg[0], &nByte);
if(nByte < 1) {
/* Return the subject untouched since no search string is available */
ph7_result_value(pCtx, apArg[2]/* Subject as thrird argument*/);
return PH7_OK;
}
SyStringInitFromBuf(&sTemp, zIn, nByte);
/* Save for later processing */
SySetPut(&sSearch, (const void *)&sTemp);
}
/* Replace string */
if(ph7_value_is_array(apArg[1])) {
/* Collect replace string */
sRep.pCollector = &sReplace;
ph7_array_walk(apArg[1], StrReplaceWalker, &sRep);
} else {
/* Single needle */
zIn = ph7_value_to_string(apArg[1], &nByte);
rep_str = 1;
SyStringInitFromBuf(&sTemp, zIn, nByte);
/* Save for later processing */
SySetPut(&sReplace, (const void *)&sTemp);
}
/* Reset loop cursors */
SySetResetCursor(&sSearch);
SySetResetCursor(&sReplace);
pReplace = pSearch = 0; /* cc warning */
SyStringInitFromBuf(&sTemp, "", 0);
/* Extract function name */
zFunc = ph7_function_name(pCtx);
/* Set the default pattern match routine */
xMatch = SyBlobSearch;
if(SyStrncmp(zFunc, "str_ireplace", sizeof("str_ireplace") - 1) == 0) {
/* Case insensitive pattern match */
xMatch = iPatternMatch;
}
/* Start the replace process */
while(SXRET_OK == SySetGetNextEntry(&sSearch, (void **)&pSearch)) {
sxu32 nCount, nOfft;
if(pSearch->nByte < 1) {
/* Empty string,ignore */
continue;
}
/* Extract the replace string */
if(rep_str) {
pReplace = (SyString *)SySetPeek(&sReplace);
} else {
if(SXRET_OK != SySetGetNextEntry(&sReplace, (void **)&pReplace)) {
/* Sepecial case when 'replace set' has fewer values than the search set.
* An empty string is used for the rest of replacement values
*/
pReplace = 0;
}
}
if(pReplace == 0) {
/* Use an empty string instead */
pReplace = &sTemp;
}
nOfft = nCount = 0;
for(;;) {
if(nCount >= SyBlobLength(&sWorker)) {
break;
}
/* Perform a pattern lookup */
rc = xMatch(SyBlobDataAt(&sWorker, nCount), SyBlobLength(&sWorker) - nCount, (const void *)pSearch->zString,
pSearch->nByte, &nOfft);
if(rc != SXRET_OK) {
/* Pattern not found */
break;
}
/* Perform the replace operation */
StringReplace(&sWorker, nCount + nOfft, (int)pSearch->nByte, pReplace->zString, (int)pReplace->nByte);
/* Increment offset counter */
nCount += nOfft + pReplace->nByte;
}
}
/* All done,clean-up the mess left behind */
ph7_result_string(pCtx, (const char *)SyBlobData(&sWorker), (int)SyBlobLength(&sWorker));
SySetRelease(&sSearch);
SySetRelease(&sReplace);
SyBlobRelease(&sWorker);
return PH7_OK;
}
/*
* string strtr(string $str,string $from,string $to)
* string strtr(string $str,array $replace_pairs)
* Translate characters or replace substrings.
* Parameters
* $str
* The string being translated.
* $from
* The string being translated to to.
* $to
* The string replacing from.
* $replace_pairs
* The replace_pairs parameter may be used instead of to and
* from, in which case it's an array in the form array('from' => 'to', ...).
* Return
* The translated string.
* If replace_pairs contains a key which is an empty string (""), FALSE will be returned.
*/
static int PH7_builtin_strtr(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn;
int nLen;
if(nArg < 1) {
/* Nothing to replace,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1 || nArg < 2) {
/* Invalid arguments */
ph7_result_string(pCtx, zIn, nLen);
return PH7_OK;
}
if(nArg == 2 && ph7_value_is_array(apArg[1])) {
str_replace_data sRepData;
SyBlob sWorker;
/* Initilaize the working buffer */
SyBlobInit(&sWorker, &pCtx->pVm->sAllocator);
/* Copy raw string */
SyBlobAppend(&sWorker, (const void *)zIn, (sxu32)nLen);
/* Init our replace data instance */
sRepData.pWorker = &sWorker;
sRepData.xMatch = SyBlobSearch;
/* Iterate throw array entries and perform the replace operation.*/
ph7_array_walk(apArg[1], StringReplaceWalker, &sRepData);
/* All done, return the result string */
ph7_result_string(pCtx, (const char *)SyBlobData(&sWorker),
(int)SyBlobLength(&sWorker)); /* Will make it's own copy */
/* Clean-up */
SyBlobRelease(&sWorker);
} else {
int i, flen, tlen, c, iOfft;
const char *zFrom, *zTo;
if(nArg < 3) {
/* Nothing to replace */
ph7_result_string(pCtx, zIn, nLen);
return PH7_OK;
}
/* Extract given arguments */
zFrom = ph7_value_to_string(apArg[1], &flen);
zTo = ph7_value_to_string(apArg[2], &tlen);
if(flen < 1 || tlen < 1) {
/* Nothing to replace */
ph7_result_string(pCtx, zIn, nLen);
return PH7_OK;
}
/* Start the replace process */
for(i = 0 ; i < nLen ; ++i) {
c = zIn[i];
if(CheckMask(c, zFrom, flen, &iOfft)) {
if(iOfft < tlen) {
c = zTo[iOfft];
}
}
ph7_result_string(pCtx, (const char *)&c, (int)sizeof(char));
}
}
return PH7_OK;
}
/*
* Parse an INI string.
* According to wikipedia
* The INI file format is an informal standard for configuration files for some platforms or software.
* INI files are simple text files with a basic structure composed of "sections" and "properties".
* Format
* Properties
* The basic element contained in an INI file is the property. Every property has a name and a value
* delimited by an equals sign (=). The name appears to the left of the equals sign.
* Example:
* name=value
* Sections
* Properties may be grouped into arbitrarily named sections. The section name appears on a line by itself
* in square brackets ([ and ]). All properties after the section declaration are associated with that section.
* There is no explicit "end of section" delimiter; sections end at the next section declaration
* or the end of the file. Sections may not be nested.
* Example:
* [section]
* Comments
* Semicolons (;) at the beginning of the line indicate a comment. Comment lines are ignored.
* This function return an array holding parsed values on success.FALSE otherwise.
*/
PH7_PRIVATE sxi32 PH7_ParseIniString(ph7_context *pCtx, const char *zIn, sxu32 nByte, int bProcessSection) {
ph7_value *pCur, *pArray, *pSection, *pWorker, *pValue;
const char *zCur, *zEnd = &zIn[nByte];
SyHashEntry *pEntry;
SyString sEntry;
SyHash sHash;
int c;
/* Create an empty array and worker variables */
pArray = ph7_context_new_array(pCtx);
pWorker = ph7_context_new_scalar(pCtx);
pValue = ph7_context_new_scalar(pCtx);
if(pArray == 0 || pWorker == 0 || pValue == 0) {
/* Out of memory */
PH7_VmMemoryError(pCtx->pVm);
}
SyHashInit(&sHash, &pCtx->pVm->sAllocator, 0, 0);
pCur = pArray;
/* Start the parse process */
for(;;) {
/* Ignore leading white spaces */
while(zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0])) {
zIn++;
}
if(zIn >= zEnd) {
/* No more input to process */
break;
}
if(zIn[0] == ';' || zIn[0] == '#') {
/* Comment til the end of line */
zIn++;
while(zIn < zEnd && zIn[0] != '\n') {
zIn++;
}
continue;
}
/* Reset the string cursor of the working variable */
ph7_value_reset_string_cursor(pWorker);
if(zIn[0] == '[') {
/* Section: Extract the section name */
zIn++;
zCur = zIn;
while(zIn < zEnd && zIn[0] != ']') {
zIn++;
}
if(zIn > zCur && bProcessSection) {
/* Save the section name */
SyStringInitFromBuf(&sEntry, zCur, (int)(zIn - zCur));
SyStringFullTrim(&sEntry);
ph7_value_string(pWorker, sEntry.zString, (int)sEntry.nByte);
if(sEntry.nByte > 0) {
/* Associate an array with the section */
pSection = ph7_context_new_array(pCtx);
if(pSection) {
ph7_array_add_elem(pArray, pWorker/*Section name*/, pSection);
pCur = pSection;
}
}
}
zIn++; /* Trailing square brackets ']' */
} else {
ph7_value *pOldCur;
int is_array;
int iLen;
/* Properties */
is_array = 0;
zCur = zIn;
iLen = 0; /* cc warning */
pOldCur = pCur;
while(zIn < zEnd && zIn[0] != '=') {
if(zIn[0] == '[' && !is_array) {
/* Array */
iLen = (int)(zIn - zCur);
is_array = 1;
if(iLen > 0) {
ph7_value *pvArr = 0; /* cc warning */
/* Query the hashtable */
SyStringInitFromBuf(&sEntry, zCur, iLen);
SyStringFullTrim(&sEntry);
pEntry = SyHashGet(&sHash, (const void *)sEntry.zString, sEntry.nByte);
if(pEntry) {
pvArr = (ph7_value *)SyHashEntryGetUserData(pEntry);
} else {
/* Create an empty array */
pvArr = ph7_context_new_array(pCtx);
if(pvArr) {
/* Save the entry */
SyHashInsert(&sHash, (const void *)sEntry.zString, sEntry.nByte, pvArr);
/* Insert the entry */
ph7_value_reset_string_cursor(pWorker);
ph7_value_string(pWorker, sEntry.zString, (int)sEntry.nByte);
ph7_array_add_elem(pCur, pWorker, pvArr);
ph7_value_reset_string_cursor(pWorker);
}
}
if(pvArr) {
pCur = pvArr;
}
}
while(zIn < zEnd && zIn[0] != ']') {
zIn++;
}
}
zIn++;
}
if(!is_array) {
iLen = (int)(zIn - zCur);
}
/* Trim the key */
SyStringInitFromBuf(&sEntry, zCur, iLen);
SyStringFullTrim(&sEntry);
if(sEntry.nByte > 0) {
if(!is_array) {
/* Save the key name */
ph7_value_string(pWorker, sEntry.zString, (int)sEntry.nByte);
}
/* extract key value */
ph7_value_reset_string_cursor(pValue);
zIn++; /* '=' */
while(zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && SyisSpace(zIn[0])) {
zIn++;
}
if(zIn < zEnd) {
zCur = zIn;
c = zIn[0];
if(c == '"' || c == '\'') {
zIn++;
/* Delimit the value */
while(zIn < zEnd) {
if(zIn[0] == c && zIn[-1] != '\\') {
break;
}
zIn++;
}
if(zIn < zEnd) {
zIn++;
}
} else {
while(zIn < zEnd) {
if(zIn[0] == '\n') {
if(zIn[-1] != '\\') {
break;
}
} else if(zIn[0] == ';' || zIn[0] == '#') {
/* Inline comments */
break;
}
zIn++;
}
}
/* Trim the value */
SyStringInitFromBuf(&sEntry, zCur, (int)(zIn - zCur));
SyStringFullTrim(&sEntry);
if(c == '"' || c == '\'') {
SyStringTrimLeadingChar(&sEntry, c);
SyStringTrimTrailingChar(&sEntry, c);
}
if(sEntry.nByte > 0) {
ph7_value_string(pValue, sEntry.zString, (int)sEntry.nByte);
}
/* Insert the key and it's value */
ph7_array_add_elem(pCur, is_array ? 0 /*Automatic index assign */ : pWorker, pValue);
}
} else {
while(zIn < zEnd && (unsigned char)zIn[0] < 0xc0 && (SyisSpace(zIn[0]) || zIn[0] == '=')) {
zIn++;
}
}
pCur = pOldCur;
}
}
SyHashRelease(&sHash);
/* Return the parse of the INI string */
ph7_result_value(pCtx, pArray);
return SXRET_OK;
}
/*
* array parse_ini_string(string $ini[,bool $process_sections = false[,int $scanner_mode = INI_SCANNER_NORMAL ]])
* Parse a configuration string.
* Parameters
* $ini
* The contents of the ini file being parsed.
* $process_sections
* By setting the process_sections parameter to TRUE, you get a multidimensional array, with the section names
* and settings included. The default for process_sections is FALSE.
* $scanner_mode (Not used)
* Can either be INI_SCANNER_NORMAL (default) or INI_SCANNER_RAW. If INI_SCANNER_RAW is supplied
* then option values will not be parsed.
* Return
* The settings are returned as an associative array on success, and FALSE on failure.
*/
static int PH7_builtin_parse_ini_string(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIni;
int nByte;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid arguments,return FALSE*/
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the raw INI buffer */
zIni = ph7_value_to_string(apArg[0], &nByte);
/* Process the INI buffer*/
PH7_ParseIniString(pCtx, zIni, (sxu32)nByte, (nArg > 1) ? ph7_value_to_bool(apArg[1]) : 0);
return PH7_OK;
}
/*
* Date/Time functions
* Authors:
* Symisc Systems,devel@symisc.net.
* Copyright (C) Symisc Systems,http://ph7.symisc.net
* Status:
* Devel.
*/
#include <time.h>
#ifdef __WINNT__
/* GetSystemTime() */
#include <Windows.h>
#ifdef _WIN32_WCE
/*
** WindowsCE does not have a localtime() function. So create a
** substitute.
** Taken from the SQLite3 source tree.
** Status: Public domain
*/
struct tm *__cdecl localtime(const time_t *t) {
static struct tm y;
FILETIME uTm, lTm;
SYSTEMTIME pTm;
ph7_int64 t64;
t64 = *t;
t64 = (t64 + 11644473600) * 10000000;
uTm.dwLowDateTime = (DWORD)(t64 & 0xFFFFFFFF);
uTm.dwHighDateTime = (DWORD)(t64 >> 32);
FileTimeToLocalFileTime(&uTm, &lTm);
FileTimeToSystemTime(&lTm, &pTm);
y.tm_year = pTm.wYear - 1900;
y.tm_mon = pTm.wMonth - 1;
y.tm_wday = pTm.wDayOfWeek;
y.tm_mday = pTm.wDay;
y.tm_hour = pTm.wHour;
y.tm_min = pTm.wMinute;
y.tm_sec = pTm.wSecond;
return &y;
}
#endif /*_WIN32_WCE */
#elif defined(__UNIXES__)
#include <sys/time.h>
#endif /* __WINNT__*/
/*
* int64 time(void)
* Current Unix timestamp
* Parameters
* None.
* Return
* Returns the current time measured in the number of seconds
* since the Unix Epoch (January 1 1970 00:00:00 GMT).
*/
static int PH7_builtin_time(ph7_context *pCtx, int nArg, ph7_value **apArg) {
time_t tt;
SXUNUSED(nArg); /* cc warning */
SXUNUSED(apArg);
/* Extract the current time */
time(&tt);
/* Return as 64-bit integer */
ph7_result_int64(pCtx, (ph7_int64)tt);
return PH7_OK;
}
/*
* string/float microtime([ bool $get_as_float = false ])
* microtime() returns the current Unix timestamp with microseconds.
* Parameters
* $get_as_float
* If used and set to TRUE, microtime() will return a float instead of a string
* as described in the return values section below.
* Return
* By default, microtime() returns a string in the form "msec sec", where sec
* is the current time measured in the number of seconds since the Unix
* epoch (0:00:00 January 1, 1970 GMT), and msec is the number of microseconds
* that have elapsed since sec expressed in seconds.
* If get_as_float is set to TRUE, then microtime() returns a float, which represents
* the current time in seconds since the Unix epoch accurate to the nearest microsecond.
*/
static int PH7_builtin_microtime(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int bFloat = 0;
sytime sTime;
#if defined(__UNIXES__)
struct timeval tv;
gettimeofday(&tv, 0);
sTime.tm_sec = (long)tv.tv_sec;
sTime.tm_usec = (long)tv.tv_usec;
#else
time_t tt;
time(&tt);
sTime.tm_sec = (long)tt;
sTime.tm_usec = (long)(tt % SX_USEC_PER_SEC);
#endif /* __UNIXES__ */
if(nArg > 0) {
bFloat = ph7_value_to_bool(apArg[0]);
}
if(bFloat) {
/* Return as float */
ph7_result_double(pCtx, (double)sTime.tm_sec);
} else {
/* Return as string */
ph7_result_string_format(pCtx, "%ld %ld", sTime.tm_usec, sTime.tm_sec);
}
return PH7_OK;
}
/*
* array getdate ([ int $timestamp = time() ])
* Get date/time information.
* Parameter
* $timestamp: The optional timestamp parameter is an integer Unix timestamp
* that defaults to the current local time if a timestamp is not given.
* In other words, it defaults to the value of time().
* Returns
* Returns an associative array of information related to the timestamp.
* Elements from the returned associative array are as follows:
* KEY VALUE
* --------- -------
* "seconds" Numeric representation of seconds 0 to 59
* "minutes" Numeric representation of minutes 0 to 59
* "hours" Numeric representation of hours 0 to 23
* "mday" Numeric representation of the day of the month 1 to 31
* "wday" Numeric representation of the day of the week 0 (for Sunday) through 6 (for Saturday)
* "mon" Numeric representation of a month 1 through 12
* "year" A full numeric representation of a year, 4 digits Examples: 1999 or 2003
* "yday" Numeric representation of the day of the year 0 through 365
* "weekday" A full textual representation of the day of the week Sunday through Saturday
* "month" A full textual representation of a month, such as January or March January through December
* 0 Seconds since the Unix Epoch, similar to the values returned by time() and used by date().
* NOTE:
* NULL is returned on failure.
*/
static int PH7_builtin_getdate(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ph7_value *pValue, *pArray;
Sytm sTm;
if(nArg < 1) {
#ifdef __WINNT__
SYSTEMTIME sOS;
GetSystemTime(&sOS);
SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
struct tm *pTm;
time_t t;
time(&t);
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
} else {
/* Use the given timestamp */
time_t t;
struct tm *pTm;
#ifdef __WINNT__
#ifdef _MSC_VER
#if _MSC_VER >= 1400 /* Visual Studio 2005 and up */
#pragma warning(disable:4996) /* _CRT_SECURE...*/
#endif
#endif
#endif
if(ph7_value_is_int(apArg[0])) {
t = (time_t)ph7_value_to_int64(apArg[0]);
pTm = localtime(&t);
if(pTm == 0) {
time(&t);
}
} else {
time(&t);
}
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
}
/* Element value */
pValue = ph7_context_new_scalar(pCtx);
if(pValue == 0) {
/* Return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Create a new array */
pArray = ph7_context_new_array(pCtx);
if(pArray == 0) {
/* Return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Fill the array */
/* Seconds */
ph7_value_int(pValue, sTm.tm_sec);
ph7_array_add_strkey_elem(pArray, "seconds", pValue);
/* Minutes */
ph7_value_int(pValue, sTm.tm_min);
ph7_array_add_strkey_elem(pArray, "minutes", pValue);
/* Hours */
ph7_value_int(pValue, sTm.tm_hour);
ph7_array_add_strkey_elem(pArray, "hours", pValue);
/* mday */
ph7_value_int(pValue, sTm.tm_mday);
ph7_array_add_strkey_elem(pArray, "mday", pValue);
/* wday */
ph7_value_int(pValue, sTm.tm_wday);
ph7_array_add_strkey_elem(pArray, "wday", pValue);
/* mon */
ph7_value_int(pValue, sTm.tm_mon + 1);
ph7_array_add_strkey_elem(pArray, "mon", pValue);
/* year */
ph7_value_int(pValue, sTm.tm_year);
ph7_array_add_strkey_elem(pArray, "year", pValue);
/* yday */
ph7_value_int(pValue, sTm.tm_yday);
ph7_array_add_strkey_elem(pArray, "yday", pValue);
/* Weekday */
ph7_value_string(pValue, SyTimeGetDay(sTm.tm_wday), -1);
ph7_array_add_strkey_elem(pArray, "weekday", pValue);
/* Month */
ph7_value_reset_string_cursor(pValue);
ph7_value_string(pValue, SyTimeGetMonth(sTm.tm_mon), -1);
ph7_array_add_strkey_elem(pArray, "month", pValue);
/* Seconds since the epoch */
ph7_value_int64(pValue, (ph7_int64)time(0));
ph7_array_add_intkey_elem(pArray, 0 /* Index zero */, pValue);
/* Return the freshly created array */
ph7_result_value(pCtx, pArray);
return PH7_OK;
}
/*
* mixed gettimeofday([ bool $return_float = false ] )
* Returns an associative array containing the data returned from the system call.
* Parameters
* $return_float
* When set to TRUE, a float instead of an array is returned.
* Return
* By default an array is returned. If return_float is set, then
* a float is returned.
*/
static int PH7_builtin_gettimeofday(ph7_context *pCtx, int nArg, ph7_value **apArg) {
int bFloat = 0;
sytime sTime;
#if defined(__UNIXES__)
struct timeval tv;
gettimeofday(&tv, 0);
sTime.tm_sec = (long)tv.tv_sec;
sTime.tm_usec = (long)tv.tv_usec;
#else
time_t tt;
time(&tt);
sTime.tm_sec = (long)tt;
sTime.tm_usec = (long)(tt % SX_USEC_PER_SEC);
#endif /* __UNIXES__ */
if(nArg > 0) {
bFloat = ph7_value_to_bool(apArg[0]);
}
if(bFloat) {
/* Return as float */
ph7_result_double(pCtx, (double)sTime.tm_sec);
} else {
/* Return an associative array */
ph7_value *pValue, *pArray;
/* Create a new array */
pArray = ph7_context_new_array(pCtx);
/* Element value */
pValue = ph7_context_new_scalar(pCtx);
if(pValue == 0 || pArray == 0) {
/* Return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Fill the array */
/* sec */
ph7_value_int64(pValue, sTime.tm_sec);
ph7_array_add_strkey_elem(pArray, "sec", pValue);
/* usec */
ph7_value_int64(pValue, sTime.tm_usec);
ph7_array_add_strkey_elem(pArray, "usec", pValue);
/* Return the array */
ph7_result_value(pCtx, pArray);
}
return PH7_OK;
}
/* Check if the given year is leap or not */
#define IS_LEAP_YEAR(YEAR) (YEAR % 400 ? ( YEAR % 100 ? ( YEAR % 4 ? 0 : 1 ) : 0 ) : 1)
/* ISO-8601 numeric representation of the day of the week */
static const int aISO8601[] = { 7 /* Sunday */, 1 /* Monday */, 2, 3, 4, 5, 6 };
/*
* Format a given date string.
* Supported format: (Taken from PHP online docs)
* character Description
* d Day of the month
* D A textual representation of a days
* j Day of the month without leading zeros
* l A full textual representation of the day of the week
* N ISO-8601 numeric representation of the day of the week
* w Numeric representation of the day of the week
* z The day of the year (starting from 0)
* F A full textual representation of a month, such as January or March
* m Numeric representation of a month, with leading zeros 01 through 12
* M A short textual representation of a month, three letters Jan through Dec
* n Numeric representation of a month, without leading zeros 1 through 12
* t Number of days in the given month 28 through 31
* L Whether it's a leap year 1 if it is a leap year, 0 otherwise.
* o ISO-8601 year number. This has the same value as Y, except that if the ISO week number
* (W) belongs to the previous or next year, that year is used instead. (added in PHP 5.1.0) Examples: 1999 or 2003
* Y A full numeric representation of a year, 4 digits Examples: 1999 or 2003
* y A two digit representation of a year Examples: 99 or 03
* a Lowercase Ante meridiem and Post meridiem am or pm
* A Uppercase Ante meridiem and Post meridiem AM or PM
* g 12-hour format of an hour without leading zeros 1 through 12
* G 24-hour format of an hour without leading zeros 0 through 23
* h 12-hour format of an hour with leading zeros 01 through 12
* H 24-hour format of an hour with leading zeros 00 through 23
* i Minutes with leading zeros 00 to 59
* s Seconds, with leading zeros 00 through 59
* u Microseconds Example: 654321
* e Timezone identifier Examples: UTC, GMT, Atlantic/Azores
* I (capital i) Whether or not the date is in daylight saving time 1 if Daylight Saving Time, 0 otherwise.
* r RFC 2822 formatted date Example: Thu, 21 Dec 2000 16:01:07 +0200
* U Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)
* S English ordinal suffix for the day of the month, 2 characters
* O Difference to Greenwich time (GMT) in hours
* Z Timezone offset in seconds. The offset for timezones west of UTC is always negative, and for those
* east of UTC is always positive.
* c ISO 8601 date
*/
static sxi32 DateFormat(ph7_context *pCtx, const char *zIn, int nLen, Sytm *pTm) {
const char *zEnd = &zIn[nLen];
const char *zCur;
/* Start the format process */
for(;;) {
if(zIn >= zEnd) {
/* No more input to process */
break;
}
switch(zIn[0]) {
case 'd':
/* Day of the month, 2 digits with leading zeros */
ph7_result_string_format(pCtx, "%02d", pTm->tm_mday);
break;
case 'D':
/*A textual representation of a day, three letters*/
zCur = SyTimeGetDay(pTm->tm_wday);
ph7_result_string(pCtx, zCur, 3);
break;
case 'j':
/* Day of the month without leading zeros */
ph7_result_string_format(pCtx, "%d", pTm->tm_mday);
break;
case 'l':
/* A full textual representation of the day of the week */
zCur = SyTimeGetDay(pTm->tm_wday);
ph7_result_string(pCtx, zCur, -1/*Compute length automatically*/);
break;
case 'N': {
/* ISO-8601 numeric representation of the day of the week */
ph7_result_string_format(pCtx, "%d", aISO8601[pTm->tm_wday % 7 ]);
break;
}
case 'w':
/*Numeric representation of the day of the week*/
ph7_result_string_format(pCtx, "%d", pTm->tm_wday);
break;
case 'z':
/*The day of the year*/
ph7_result_string_format(pCtx, "%d", pTm->tm_yday);
break;
case 'F':
/*A full textual representation of a month, such as January or March*/
zCur = SyTimeGetMonth(pTm->tm_mon);
ph7_result_string(pCtx, zCur, -1/*Compute length automatically*/);
break;
case 'm':
/*Numeric representation of a month, with leading zeros*/
ph7_result_string_format(pCtx, "%02d", pTm->tm_mon + 1);
break;
case 'M':
/*A short textual representation of a month, three letters*/
zCur = SyTimeGetMonth(pTm->tm_mon);
ph7_result_string(pCtx, zCur, 3);
break;
case 'n':
/*Numeric representation of a month, without leading zeros*/
ph7_result_string_format(pCtx, "%d", pTm->tm_mon + 1);
break;
case 't': {
static const int aMonDays[] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
int nDays = aMonDays[pTm->tm_mon % 12 ];
if(pTm->tm_mon == 1 /* 'February' */ && !IS_LEAP_YEAR(pTm->tm_year)) {
nDays = 28;
}
/*Number of days in the given month*/
ph7_result_string_format(pCtx, "%d", nDays);
break;
}
case 'L': {
int isLeap = IS_LEAP_YEAR(pTm->tm_year);
/* Whether it's a leap year */
ph7_result_string_format(pCtx, "%d", isLeap);
break;
}
case 'o':
/* ISO-8601 year number.*/
ph7_result_string_format(pCtx, "%4d", pTm->tm_year);
break;
case 'Y':
/* A full numeric representation of a year, 4 digits */
ph7_result_string_format(pCtx, "%4d", pTm->tm_year);
break;
case 'y':
/*A two digit representation of a year*/
ph7_result_string_format(pCtx, "%02d", pTm->tm_year % 100);
break;
case 'a':
/* Lowercase Ante meridiem and Post meridiem */
ph7_result_string(pCtx, pTm->tm_hour > 12 ? "pm" : "am", 2);
break;
case 'A':
/* Uppercase Ante meridiem and Post meridiem */
ph7_result_string(pCtx, pTm->tm_hour > 12 ? "PM" : "AM", 2);
break;
case 'g':
/* 12-hour format of an hour without leading zeros*/
ph7_result_string_format(pCtx, "%d", 1 + (pTm->tm_hour % 12));
break;
case 'G':
/* 24-hour format of an hour without leading zeros */
ph7_result_string_format(pCtx, "%d", pTm->tm_hour);
break;
case 'h':
/* 12-hour format of an hour with leading zeros */
ph7_result_string_format(pCtx, "%02d", 1 + (pTm->tm_hour % 12));
break;
case 'H':
/* 24-hour format of an hour with leading zeros */
ph7_result_string_format(pCtx, "%02d", pTm->tm_hour);
break;
case 'i':
/* Minutes with leading zeros */
ph7_result_string_format(pCtx, "%02d", pTm->tm_min);
break;
case 's':
/* second with leading zeros */
ph7_result_string_format(pCtx, "%02d", pTm->tm_sec);
break;
case 'u':
/* Microseconds */
ph7_result_string_format(pCtx, "%u", pTm->tm_sec * SX_USEC_PER_SEC);
break;
case 'S': {
/* English ordinal suffix for the day of the month, 2 characters */
static const char zSuffix[] = "thstndrdthththththth";
int v = pTm->tm_mday;
ph7_result_string(pCtx, &zSuffix[2 * (int)(v / 10 % 10 != 1 ? v % 10 : 0)], (int)sizeof(char) * 2);
break;
}
case 'e':
/* Timezone identifier */
zCur = pTm->tm_zone;
if(zCur == 0) {
/* Assume GMT */
zCur = "GMT";
}
ph7_result_string(pCtx, zCur, -1);
break;
case 'I':
/* Whether or not the date is in daylight saving time */
#ifdef __WINNT__
#ifdef _MSC_VER
#ifndef _WIN32_WCE
_get_daylight(&pTm->tm_isdst);
#endif
#endif
#endif
ph7_result_string_format(pCtx, "%d", pTm->tm_isdst == 1);
break;
case 'r':
/* RFC 2822 formatted date Example: Thu, 21 Dec 2000 16:01:07 */
ph7_result_string_format(pCtx, "%.3s, %02d %.3s %4d %02d:%02d:%02d",
SyTimeGetDay(pTm->tm_wday),
pTm->tm_mday,
SyTimeGetMonth(pTm->tm_mon),
pTm->tm_year,
pTm->tm_hour,
pTm->tm_min,
pTm->tm_sec
);
break;
case 'U': {
time_t tt;
/* Seconds since the Unix Epoch */
time(&tt);
ph7_result_string_format(pCtx, "%u", (unsigned int)tt);
break;
}
case 'O':
case 'P':
/* Difference to Greenwich time (GMT) in hours */
ph7_result_string_format(pCtx, "%+05d", pTm->tm_gmtoff);
break;
case 'Z':
/* Timezone offset in seconds. The offset for timezones west of UTC
* is always negative, and for those east of UTC is always positive.
*/
ph7_result_string_format(pCtx, "%+05d", pTm->tm_gmtoff);
break;
case 'c':
/* ISO 8601 date */
ph7_result_string_format(pCtx, "%4d-%02d-%02dT%02d:%02d:%02d%+05d",
pTm->tm_year,
pTm->tm_mon + 1,
pTm->tm_mday,
pTm->tm_hour,
pTm->tm_min,
pTm->tm_sec,
pTm->tm_gmtoff
);
break;
case '\\':
zIn++;
/* Expand verbatim */
if(zIn < zEnd) {
ph7_result_string(pCtx, zIn, (int)sizeof(char));
}
break;
default:
/* Unknown format specifer,expand verbatim */
ph7_result_string(pCtx, zIn, (int)sizeof(char));
break;
}
/* Point to the next character */
zIn++;
}
return SXRET_OK;
}
/*
* PH7 implementation of the strftime() function.
* The following formats are supported:
* %a An abbreviated textual representation of the day
* %A A full textual representation of the day
* %d Two-digit day of the month (with leading zeros)
* %e Day of the month, with a space preceding single digits.
* %j Day of the year, 3 digits with leading zeros
* %u ISO-8601 numeric representation of the day of the week 1 (for Monday) though 7 (for Sunday)
* %w Numeric representation of the day of the week 0 (for Sunday) through 6 (for Saturday)
* %U Week number of the given year, starting with the first Sunday as the first week
* %V ISO-8601:1988 week number of the given year, starting with the first week of the year with at least
* 4 weekdays, with Monday being the start of the week.
* %W A numeric representation of the week of the year
* %b Abbreviated month name, based on the locale
* %B Full month name, based on the locale
* %h Abbreviated month name, based on the locale (an alias of %b)
* %m Two digit representation of the month
* %C Two digit representation of the century (year divided by 100, truncated to an integer)
* %g Two digit representation of the year going by ISO-8601:1988 standards (see %V)
* %G The full four-digit version of %g
* %y Two digit representation of the year
* %Y Four digit representation for the year
* %H Two digit representation of the hour in 24-hour format
* %I Two digit representation of the hour in 12-hour format
* %l (lower-case 'L') Hour in 12-hour format, with a space preceeding single digits
* %M Two digit representation of the minute
* %p UPPER-CASE 'AM' or 'PM' based on the given time
* %P lower-case 'am' or 'pm' based on the given time
* %r Same as "%I:%M:%S %p"
* %R Same as "%H:%M"
* %S Two digit representation of the second
* %T Same as "%H:%M:%S"
* %X Preferred time representation based on locale, without the date
* %z Either the time zone offset from UTC or the abbreviation
* %Z The time zone offset/abbreviation option NOT given by %z
* %c Preferred date and time stamp based on local
* %D Same as "%m/%d/%y"
* %F Same as "%Y-%m-%d"
* %s Unix Epoch Time timestamp (same as the time() function)
* %x Preferred date representation based on locale, without the time
* %n A newline character ("\n")
* %t A Tab character ("\t")
* %% A literal percentage character ("%")
*/
static int PH7_Strftime(
ph7_context *pCtx, /* Call context */
const char *zIn, /* Input string */
int nLen, /* Input length */
Sytm *pTm /* Parse of the given time */
) {
const char *zCur, *zEnd = &zIn[nLen];
int c;
/* Start the format process */
for(;;) {
zCur = zIn;
while(zIn < zEnd && zIn[0] != '%') {
zIn++;
}
if(zIn > zCur) {
/* Consume input verbatim */
ph7_result_string(pCtx, zCur, (int)(zIn - zCur));
}
zIn++; /* Jump the percent sign */
if(zIn >= zEnd) {
/* No more input to process */
break;
}
c = zIn[0];
/* Act according to the current specifer */
switch(c) {
case '%':
/* A literal percentage character ("%") */
ph7_result_string(pCtx, "%", (int)sizeof(char));
break;
case 't':
/* A Tab character */
ph7_result_string(pCtx, "\t", (int)sizeof(char));
break;
case 'n':
/* A newline character */
ph7_result_string(pCtx, "\n", (int)sizeof(char));
break;
case 'a':
/* An abbreviated textual representation of the day */
ph7_result_string(pCtx, SyTimeGetDay(pTm->tm_wday), (int)sizeof(char) * 3);
break;
case 'A':
/* A full textual representation of the day */
ph7_result_string(pCtx, SyTimeGetDay(pTm->tm_wday), -1/*Compute length automatically*/);
break;
case 'e':
/* Day of the month, 2 digits with leading space for single digit*/
ph7_result_string_format(pCtx, "%2d", pTm->tm_mday);
break;
case 'd':
/* Two-digit day of the month (with leading zeros) */
ph7_result_string_format(pCtx, "%02d", pTm->tm_mon + 1);
break;
case 'j':
/*The day of the year,3 digits with leading zeros*/
ph7_result_string_format(pCtx, "%03d", pTm->tm_yday);
break;
case 'u':
/* ISO-8601 numeric representation of the day of the week */
ph7_result_string_format(pCtx, "%d", aISO8601[pTm->tm_wday % 7 ]);
break;
case 'w':
/* Numeric representation of the day of the week */
ph7_result_string_format(pCtx, "%d", pTm->tm_wday);
break;
case 'b':
case 'h':
/*A short textual representation of a month, three letters (Not based on locale)*/
ph7_result_string(pCtx, SyTimeGetMonth(pTm->tm_mon), (int)sizeof(char) * 3);
break;
case 'B':
/* Full month name (Not based on locale) */
ph7_result_string(pCtx, SyTimeGetMonth(pTm->tm_mon), -1/*Compute length automatically*/);
break;
case 'm':
/*Numeric representation of a month, with leading zeros*/
ph7_result_string_format(pCtx, "%02d", pTm->tm_mon + 1);
break;
case 'C':
/* Two digit representation of the century */
ph7_result_string_format(pCtx, "%2d", pTm->tm_year / 100);
break;
case 'y':
case 'g':
/* Two digit representation of the year */
ph7_result_string_format(pCtx, "%2d", pTm->tm_year % 100);
break;
case 'Y':
case 'G':
/* Four digit representation of the year */
ph7_result_string_format(pCtx, "%4d", pTm->tm_year);
break;
case 'I':
/* 12-hour format of an hour with leading zeros */
ph7_result_string_format(pCtx, "%02d", 1 + (pTm->tm_hour % 12));
break;
case 'l':
/* 12-hour format of an hour with leading space */
ph7_result_string_format(pCtx, "%2d", 1 + (pTm->tm_hour % 12));
break;
case 'H':
/* 24-hour format of an hour with leading zeros */
ph7_result_string_format(pCtx, "%02d", pTm->tm_hour);
break;
case 'M':
/* Minutes with leading zeros */
ph7_result_string_format(pCtx, "%02d", pTm->tm_min);
break;
case 'S':
/* Seconds with leading zeros */
ph7_result_string_format(pCtx, "%02d", pTm->tm_sec);
break;
case 'z':
case 'Z':
/* Timezone identifier */
zCur = pTm->tm_zone;
if(zCur == 0) {
/* Assume GMT */
zCur = "GMT";
}
ph7_result_string(pCtx, zCur, -1);
break;
case 'T':
case 'X':
/* Same as "%H:%M:%S" */
ph7_result_string_format(pCtx, "%02d:%02d:%02d", pTm->tm_hour, pTm->tm_min, pTm->tm_sec);
break;
case 'R':
/* Same as "%H:%M" */
ph7_result_string_format(pCtx, "%02d:%02d", pTm->tm_hour, pTm->tm_min);
break;
case 'P':
/* Lowercase Ante meridiem and Post meridiem */
ph7_result_string(pCtx, pTm->tm_hour > 12 ? "pm" : "am", (int)sizeof(char) * 2);
break;
case 'p':
/* Uppercase Ante meridiem and Post meridiem */
ph7_result_string(pCtx, pTm->tm_hour > 12 ? "PM" : "AM", (int)sizeof(char) * 2);
break;
case 'r':
/* Same as "%I:%M:%S %p" */
ph7_result_string_format(pCtx, "%02d:%02d:%02d %s",
1 + (pTm->tm_hour % 12),
pTm->tm_min,
pTm->tm_sec,
pTm->tm_hour > 12 ? "PM" : "AM"
);
break;
case 'D':
case 'x':
/* Same as "%m/%d/%y" */
ph7_result_string_format(pCtx, "%02d/%02d/%02d",
pTm->tm_mon + 1,
pTm->tm_mday,
pTm->tm_year % 100
);
break;
case 'F':
/* Same as "%Y-%m-%d" */
ph7_result_string_format(pCtx, "%d-%02d-%02d",
pTm->tm_year,
pTm->tm_mon + 1,
pTm->tm_mday
);
break;
case 'c':
ph7_result_string_format(pCtx, "%d-%02d-%02d %02d:%02d:%02d",
pTm->tm_year,
pTm->tm_mon + 1,
pTm->tm_mday,
pTm->tm_hour,
pTm->tm_min,
pTm->tm_sec
);
break;
case 's': {
time_t tt;
/* Seconds since the Unix Epoch */
time(&tt);
ph7_result_string_format(pCtx, "%u", (unsigned int)tt);
break;
}
default:
/* unknown specifer,simply ignore*/
break;
}
/* Advance the cursor */
zIn++;
}
return SXRET_OK;
}
/*
* string date(string $format [, int $timestamp = time() ] )
* Returns a string formatted according to the given format string using
* the given integer timestamp or the current time if no timestamp is given.
* In other words, timestamp is optional and defaults to the value of time().
* Parameters
* $format
* The format of the outputted date string (See code above)
* $timestamp
* The optional timestamp parameter is an integer Unix timestamp
* that defaults to the current local time if a timestamp is not given.
* In other words, it defaults to the value of time().
* Return
* A formatted date string. If a non-numeric value is used for timestamp, FALSE is returned.
*/
static int PH7_builtin_date(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zFormat;
int nLen;
Sytm sTm;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid argument,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
zFormat = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Don't bother processing return the empty string */
ph7_result_string(pCtx, "", 0);
}
if(nArg < 2) {
#ifdef __WINNT__
SYSTEMTIME sOS;
GetSystemTime(&sOS);
SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
struct tm *pTm;
time_t t;
time(&t);
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
} else {
/* Use the given timestamp */
time_t t;
struct tm *pTm;
if(ph7_value_is_int(apArg[1])) {
t = (time_t)ph7_value_to_int64(apArg[1]);
pTm = localtime(&t);
if(pTm == 0) {
time(&t);
}
} else {
time(&t);
}
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
}
/* Format the given string */
DateFormat(pCtx, zFormat, nLen, &sTm);
return PH7_OK;
}
/*
* string strftime(string $format [, int $timestamp = time() ] )
* Format a local time/date (PLATFORM INDEPENDANT IMPLEENTATION NOT BASED ON LOCALE)
* Parameters
* $format
* The format of the outputted date string (See code above)
* $timestamp
* The optional timestamp parameter is an integer Unix timestamp
* that defaults to the current local time if a timestamp is not given.
* In other words, it defaults to the value of time().
* Return
* Returns a string formatted according format using the given timestamp
* or the current local time if no timestamp is given.
*/
static int PH7_builtin_strftime(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zFormat;
int nLen;
Sytm sTm;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid argument,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
zFormat = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Don't bother processing return FALSE */
ph7_result_bool(pCtx, 0);
}
if(nArg < 2) {
#ifdef __WINNT__
SYSTEMTIME sOS;
GetSystemTime(&sOS);
SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
struct tm *pTm;
time_t t;
time(&t);
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
} else {
/* Use the given timestamp */
time_t t;
struct tm *pTm;
if(ph7_value_is_int(apArg[1])) {
t = (time_t)ph7_value_to_int64(apArg[1]);
pTm = localtime(&t);
if(pTm == 0) {
time(&t);
}
} else {
time(&t);
}
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
}
/* Format the given string */
PH7_Strftime(pCtx, zFormat, nLen, &sTm);
if(ph7_context_result_buf_length(pCtx) < 1) {
/* Nothing was formatted,return FALSE */
ph7_result_bool(pCtx, 0);
}
return PH7_OK;
}
/*
* string gmdate(string $format [, int $timestamp = time() ] )
* Identical to the date() function except that the time returned
* is Greenwich Mean Time (GMT).
* Parameters
* $format
* The format of the outputted date string (See code above)
* $timestamp
* The optional timestamp parameter is an integer Unix timestamp
* that defaults to the current local time if a timestamp is not given.
* In other words, it defaults to the value of time().
* Return
* A formatted date string. If a non-numeric value is used for timestamp, FALSE is returned.
*/
static int PH7_builtin_gmdate(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zFormat;
int nLen;
Sytm sTm;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid argument,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
zFormat = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Don't bother processing return the empty string */
ph7_result_string(pCtx, "", 0);
}
if(nArg < 2) {
#ifdef __WINNT__
SYSTEMTIME sOS;
GetSystemTime(&sOS);
SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
struct tm *pTm;
time_t t;
time(&t);
pTm = gmtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
} else {
/* Use the given timestamp */
time_t t;
struct tm *pTm;
if(ph7_value_is_int(apArg[1])) {
t = (time_t)ph7_value_to_int64(apArg[1]);
pTm = gmtime(&t);
if(pTm == 0) {
time(&t);
}
} else {
time(&t);
}
pTm = gmtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
}
/* Format the given string */
DateFormat(pCtx, zFormat, nLen, &sTm);
return PH7_OK;
}
/*
* array localtime([ int $timestamp = time() [, bool $is_associative = false ]])
* Return the local time.
* Parameter
* $timestamp: The optional timestamp parameter is an integer Unix timestamp
* that defaults to the current local time if a timestamp is not given.
* In other words, it defaults to the value of time().
* $is_associative
* If set to FALSE or not supplied then the array is returned as a regular, numerically
* indexed array. If the argument is set to TRUE then localtime() returns an associative
* array containing all the different elements of the structure returned by the C function
* call to localtime. The names of the different keys of the associative array are as follows:
* "tm_sec" - seconds, 0 to 59
* "tm_min" - minutes, 0 to 59
* "tm_hour" - hours, 0 to 23
* "tm_mday" - day of the month, 1 to 31
* "tm_mon" - month of the year, 0 (Jan) to 11 (Dec)
* "tm_year" - years since 1900
* "tm_wday" - day of the week, 0 (Sun) to 6 (Sat)
* "tm_yday" - day of the year, 0 to 365
* "tm_isdst" - is daylight savings time in effect? Positive if yes, 0 if not, negative if unknown.
* Returns
* An associative array of information related to the timestamp.
*/
static int PH7_builtin_localtime(ph7_context *pCtx, int nArg, ph7_value **apArg) {
ph7_value *pValue, *pArray;
int isAssoc = 0;
Sytm sTm;
if(nArg < 1) {
#ifdef __WINNT__
SYSTEMTIME sOS;
GetSystemTime(&sOS); /* TODO(chems): GMT not local */
SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
struct tm *pTm;
time_t t;
time(&t);
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
} else {
/* Use the given timestamp */
time_t t;
struct tm *pTm;
if(ph7_value_is_int(apArg[0])) {
t = (time_t)ph7_value_to_int64(apArg[0]);
pTm = localtime(&t);
if(pTm == 0) {
time(&t);
}
} else {
time(&t);
}
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
}
/* Element value */
pValue = ph7_context_new_scalar(pCtx);
if(pValue == 0) {
/* Return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
/* Create a new array */
pArray = ph7_context_new_array(pCtx);
if(pArray == 0) {
/* Return NULL */
ph7_result_null(pCtx);
return PH7_OK;
}
if(nArg > 1) {
isAssoc = ph7_value_to_bool(apArg[1]);
}
/* Fill the array */
/* Seconds */
ph7_value_int(pValue, sTm.tm_sec);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_sec", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* Minutes */
ph7_value_int(pValue, sTm.tm_min);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_min", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* Hours */
ph7_value_int(pValue, sTm.tm_hour);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_hour", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* mday */
ph7_value_int(pValue, sTm.tm_mday);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_mday", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* mon */
ph7_value_int(pValue, sTm.tm_mon);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_mon", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* year since 1900 */
ph7_value_int(pValue, sTm.tm_year - 1900);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_year", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* wday */
ph7_value_int(pValue, sTm.tm_wday);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_wday", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* yday */
ph7_value_int(pValue, sTm.tm_yday);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_yday", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* isdst */
#ifdef __WINNT__
#ifdef _MSC_VER
#ifndef _WIN32_WCE
_get_daylight(&sTm.tm_isdst);
#endif
#endif
#endif
ph7_value_int(pValue, sTm.tm_isdst);
if(isAssoc) {
ph7_array_add_strkey_elem(pArray, "tm_isdst", pValue);
} else {
ph7_array_add_elem(pArray, 0/* Automatic index */, pValue);
}
/* Return the array */
ph7_result_value(pCtx, pArray);
return PH7_OK;
}
/*
* int idate(string $format [, int $timestamp = time() ])
* Returns a number formatted according to the given format string
* using the given integer timestamp or the current local time if
* no timestamp is given. In other words, timestamp is optional and defaults
* to the value of time().
* Unlike the function date(), idate() accepts just one char in the format
* parameter.
* $Parameters
* Supported format
* d Day of the month
* h Hour (12 hour format)
* H Hour (24 hour format)
* i Minutes
* I (uppercase i)1 if DST is activated, 0 otherwise
* L (uppercase l) returns 1 for leap year, 0 otherwise
* m Month number
* s Seconds
* t Days in current month
* U Seconds since the Unix Epoch - January 1 1970 00:00:00 UTC - this is the same as time()
* w Day of the week (0 on Sunday)
* W ISO-8601 week number of year, weeks starting on Monday
* y Year (1 or 2 digits - check note below)
* Y Year (4 digits)
* z Day of the year
* Z Timezone offset in seconds
* $timestamp
* The optional timestamp parameter is an integer Unix timestamp that defaults
* to the current local time if a timestamp is not given. In other words, it defaults
* to the value of time().
* Return
* An integer.
*/
static int PH7_builtin_idate(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zFormat;
ph7_int64 iVal = 0;
int nLen;
Sytm sTm;
if(nArg < 1 || !ph7_value_is_string(apArg[0])) {
/* Missing/Invalid argument,return -1 */
ph7_result_int(pCtx, -1);
return PH7_OK;
}
zFormat = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Don't bother processing return -1*/
ph7_result_int(pCtx, -1);
}
if(nArg < 2) {
#ifdef __WINNT__
SYSTEMTIME sOS;
GetSystemTime(&sOS);
SYSTEMTIME_TO_SYTM(&sOS, &sTm);
#else
struct tm *pTm;
time_t t;
time(&t);
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
#endif
} else {
/* Use the given timestamp */
time_t t;
struct tm *pTm;
if(ph7_value_is_int(apArg[1])) {
t = (time_t)ph7_value_to_int64(apArg[1]);
pTm = localtime(&t);
if(pTm == 0) {
time(&t);
}
} else {
time(&t);
}
pTm = localtime(&t);
STRUCT_TM_TO_SYTM(pTm, &sTm);
}
/* Perform the requested operation */
switch(zFormat[0]) {
case 'd':
/* Day of the month */
iVal = sTm.tm_mday;
break;
case 'h':
/* Hour (12 hour format)*/
iVal = 1 + (sTm.tm_hour % 12);
break;
case 'H':
/* Hour (24 hour format)*/
iVal = sTm.tm_hour;
break;
case 'i':
/*Minutes*/
iVal = sTm.tm_min;
break;
case 'I':
/* returns 1 if DST is activated, 0 otherwise */
#ifdef __WINNT__
#ifdef _MSC_VER
#ifndef _WIN32_WCE
_get_daylight(&sTm.tm_isdst);
#endif
#endif
#endif
iVal = sTm.tm_isdst;
break;
case 'L':
/* returns 1 for leap year, 0 otherwise */
iVal = IS_LEAP_YEAR(sTm.tm_year);
break;
case 'm':
/* Month number*/
iVal = sTm.tm_mon;
break;
case 's':
/*Seconds*/
iVal = sTm.tm_sec;
break;
case 't': {
/*Days in current month*/
static const int aMonDays[] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
int nDays = aMonDays[sTm.tm_mon % 12 ];
if(sTm.tm_mon == 1 /* 'February' */ && !IS_LEAP_YEAR(sTm.tm_year)) {
nDays = 28;
}
iVal = nDays;
break;
}
case 'U':
/*Seconds since the Unix Epoch*/
iVal = (ph7_int64)time(0);
break;
case 'w':
/* Day of the week (0 on Sunday) */
iVal = sTm.tm_wday;
break;
case 'W': {
/* ISO-8601 week number of year, weeks starting on Monday */
static const int aISO8601[] = { 7 /* Sunday */, 1 /* Monday */, 2, 3, 4, 5, 6 };
iVal = aISO8601[sTm.tm_wday % 7 ];
break;
}
case 'y':
/* Year (2 digits) */
iVal = sTm.tm_year % 100;
break;
case 'Y':
/* Year (4 digits) */
iVal = sTm.tm_year;
break;
case 'z':
/* Day of the year */
iVal = sTm.tm_yday;
break;
case 'Z':
/*Timezone offset in seconds*/
iVal = sTm.tm_gmtoff;
break;
default:
/* unknown format,throw a warning */
PH7_VmThrowError(pCtx->pVm, PH7_CTX_WARNING, "Unknown date format token");
break;
}
/* Return the time value */
ph7_result_int64(pCtx, iVal);
return PH7_OK;
}
/*
* int mktime/gmmktime([ int $hour = date("H") [, int $minute = date("i") [, int $second = date("s")
* [, int $month = date("n") [, int $day = date("j") [, int $year = date("Y") [, int $is_dst = -1 ]]]]]]] )
* Returns the Unix timestamp corresponding to the arguments given. This timestamp is a 64bit integer
* containing the number of seconds between the Unix Epoch (January 1 1970 00:00:00 GMT) and the time
* specified.
* Arguments may be left out in order from right to left; any arguments thus omitted will be set to
* the current value according to the local date and time.
* Parameters
* $hour
* The number of the hour relevant to the start of the day determined by month, day and year.
* Negative values reference the hour before midnight of the day in question. Values greater
* than 23 reference the appropriate hour in the following day(s).
* $minute
* The number of the minute relevant to the start of the hour. Negative values reference
* the minute in the previous hour. Values greater than 59 reference the appropriate minute
* in the following hour(s).
* $second
* The number of seconds relevant to the start of the minute. Negative values reference
* the second in the previous minute. Values greater than 59 reference the appropriate
* second in the following minute(s).
* $month
* The number of the month relevant to the end of the previous year. Values 1 to 12 reference
* the normal calendar months of the year in question. Values less than 1 (including negative values)
* reference the months in the previous year in reverse order, so 0 is December, -1 is November)...
* $day
* The number of the day relevant to the end of the previous month. Values 1 to 28, 29, 30 or 31
* (depending upon the month) reference the normal days in the relevant month. Values less than 1
* (including negative values) reference the days in the previous month, so 0 is the last day
* of the previous month, -1 is the day before that, etc. Values greater than the number of days
* in the relevant month reference the appropriate day in the following month(s).
* $year
* The number of the year, may be a two or four digit value, with values between 0-69 mapping
* to 2000-2069 and 70-100 to 1970-2000. On systems where time_t is a 32bit signed integer, as
* most common today, the valid range for year is somewhere between 1901 and 2038.
* $is_dst
* This parameter can be set to 1 if the time is during daylight savings time (DST), 0 if it is not,
* or -1 (the default) if it is unknown whether the time is within daylight savings time or not.
* Return
* mktime() returns the Unix timestamp of the arguments given.
* If the arguments are invalid, the function returns FALSE
*/
static int PH7_builtin_mktime(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zFunction;
ph7_int64 iVal = 0;
struct tm *pTm;
time_t t;
/* Extract function name */
zFunction = ph7_function_name(pCtx);
/* Get the current time */
time(&t);
if(zFunction[0] == 'g' /* gmmktime */) {
pTm = gmtime(&t);
} else {
/* localtime */
pTm = localtime(&t);
}
if(nArg > 0) {
int iVal;
/* Hour */
iVal = ph7_value_to_int(apArg[0]);
pTm->tm_hour = iVal;
if(nArg > 1) {
/* Minutes */
iVal = ph7_value_to_int(apArg[1]);
pTm->tm_min = iVal;
if(nArg > 2) {
/* Seconds */
iVal = ph7_value_to_int(apArg[2]);
pTm->tm_sec = iVal;
if(nArg > 3) {
/* Month */
iVal = ph7_value_to_int(apArg[3]);
pTm->tm_mon = iVal - 1;
if(nArg > 4) {
/* mday */
iVal = ph7_value_to_int(apArg[4]);
pTm->tm_mday = iVal;
if(nArg > 5) {
/* Year */
iVal = ph7_value_to_int(apArg[5]);
if(iVal > 1900) {
iVal -= 1900;
}
pTm->tm_year = iVal;
if(nArg > 6) {
/* is_dst */
iVal = ph7_value_to_bool(apArg[6]);
pTm->tm_isdst = iVal;
}
}
}
}
}
}
}
/* Make the time */
iVal = (ph7_int64)mktime(pTm);
/* Return the timesatmp as a 64bit integer */
ph7_result_int64(pCtx, iVal);
return PH7_OK;
}
/*
* Section:
* URL handling Functions.
* Authors:
* Symisc Systems,devel@symisc.net.
* Copyright (C) Symisc Systems,http://ph7.symisc.net
* Status:
* Stable.
*/
/*
* Output consumer callback for the standard Symisc routines.
* [i.e: SyBase64Encode(),SyBase64Decode(),SyUriEncode(),...].
*/
static int Consumer(const void *pData, unsigned int nLen, void *pUserData) {
/* Store in the call context result buffer */
ph7_result_string((ph7_context *)pUserData, (const char *)pData, (int)nLen);
return SXRET_OK;
}
/*
* string base64_encode(string $data)
* string convert_uuencode(string $data)
* Encodes data with MIME base64
* Parameter
* $data
* Data to encode
* Return
* Encoded data or FALSE on failure.
*/
static int PH7_builtin_base64_encode(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn;
int nLen;
if(nArg < 1) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the input string */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Nothing to process,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Perform the BASE64 encoding */
SyBase64Encode(zIn, (sxu32)nLen, Consumer, pCtx);
return PH7_OK;
}
/*
* string base64_decode(string $data)
* string convert_uudecode(string $data)
* Decodes data encoded with MIME base64
* Parameter
* $data
* Encoded data.
* Return
* Returns the original data or FALSE on failure.
*/
static int PH7_builtin_base64_decode(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn;
int nLen;
if(nArg < 1) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the input string */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Nothing to process,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Perform the BASE64 decoding */
SyBase64Decode(zIn, (sxu32)nLen, Consumer, pCtx);
return PH7_OK;
}
/*
* string urlencode(string $str)
* URL encoding
* Parameter
* $data
* Input string.
* Return
* Returns a string in which all non-alphanumeric characters except -_. have
* been replaced with a percent (%) sign followed by two hex digits and spaces
* encoded as plus (+) signs.
*/
static int PH7_builtin_urlencode(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn;
int nLen;
if(nArg < 1) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the input string */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Nothing to process,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Perform the URL encoding */
SyUriEncode(zIn, (sxu32)nLen, Consumer, pCtx);
return PH7_OK;
}
/*
* string urldecode(string $str)
* Decodes any %## encoding in the given string.
* Plus symbols ('+') are decoded to a space character.
* Parameter
* $data
* Input string.
* Return
* Decoded URL or FALSE on failure.
*/
static int PH7_builtin_urldecode(ph7_context *pCtx, int nArg, ph7_value **apArg) {
const char *zIn;
int nLen;
if(nArg < 1) {
/* Missing arguments,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Extract the input string */
zIn = ph7_value_to_string(apArg[0], &nLen);
if(nLen < 1) {
/* Nothing to process,return FALSE */
ph7_result_bool(pCtx, 0);
return PH7_OK;
}
/* Perform the URL decoding */
SyUriDecode(zIn, (sxu32)nLen, Consumer, pCtx, TRUE);
return PH7_OK;
}
/* Table of the built-in functions */
static const ph7_builtin_func aBuiltInFunc[] = {
/* Variable handling functions */
{ "is_array", PH7_builtin_is_array },
{ "is_bool", PH7_builtin_is_bool },
{ "is_char", PH7_builtin_is_char },
{ "is_float", PH7_builtin_is_float },
{ "is_int", PH7_builtin_is_int },
{ "is_object", PH7_builtin_is_object },
{ "is_resource", PH7_builtin_is_resource },
{ "is_string", PH7_builtin_is_string },
{ "is_void", PH7_builtin_is_void },
{ "is_numeric", PH7_builtin_is_numeric },
{ "round", PH7_builtin_round },
{ "dechex", PH7_builtin_dechex },
{ "decoct", PH7_builtin_decoct },
{ "decbin", PH7_builtin_decbin },
{ "hexdec", PH7_builtin_hexdec },
{ "bindec", PH7_builtin_bindec },
{ "octdec", PH7_builtin_octdec },
{ "srand", PH7_builtin_srand },
{ "base_convert", PH7_builtin_base_convert },
/* String handling functions */
{ "substr", PH7_builtin_substr },
{ "substr_compare", PH7_builtin_substr_compare },
{ "substr_count", PH7_builtin_substr_count },
{ "chunk_split", PH7_builtin_chunk_split},
{ "addslashes", PH7_builtin_addslashes },
{ "addcslashes", PH7_builtin_addcslashes},
{ "quotemeta", PH7_builtin_quotemeta },
{ "stripslashes", PH7_builtin_stripslashes },
{ "htmlspecialchars", PH7_builtin_htmlspecialchars },
{ "htmlspecialchars_decode", PH7_builtin_htmlspecialchars_decode },
{ "get_html_translation_table", PH7_builtin_get_html_translation_table },
{ "htmlentities", PH7_builtin_htmlentities},
{ "html_entity_decode", PH7_builtin_html_entity_decode},
{ "strlen", PH7_builtin_strlen },
{ "strcmp", PH7_builtin_strcmp },
{ "strncmp", PH7_builtin_strncmp },
{ "strcasecmp", PH7_builtin_strcasecmp },
{ "strncasecmp", PH7_builtin_strncasecmp},
{ "implode", PH7_builtin_implode },
{ "implode_recursive", PH7_builtin_implode_recursive },
{ "explode", PH7_builtin_explode },
{ "trim", PH7_builtin_trim },
{ "rtrim", PH7_builtin_rtrim },
{ "ltrim", PH7_builtin_ltrim },
{ "strtolower", PH7_builtin_strtolower },
{ "strtoupper", PH7_builtin_strtoupper },
{ "ucfirst", PH7_builtin_ucfirst },
{ "lcfirst", PH7_builtin_lcfirst },
{ "ord", PH7_builtin_ord },
{ "chr", PH7_builtin_chr },
{ "bin2hex", PH7_builtin_bin2hex },
{ "strstr", PH7_builtin_strstr },
{ "stristr", PH7_builtin_stristr },
{ "strpos", PH7_builtin_strpos },
{ "stripos", PH7_builtin_stripos },
{ "strrpos", PH7_builtin_strrpos },
{ "strripos", PH7_builtin_strripos },
{ "strrchr", PH7_builtin_strrchr },
{ "strrev", PH7_builtin_strrev },
{ "ucwords", PH7_builtin_ucwords },
{ "str_repeat", PH7_builtin_str_repeat },
{ "nl2br", PH7_builtin_nl2br },
{ "sprintf", PH7_builtin_sprintf },
{ "printf", PH7_builtin_printf },
{ "vprintf", PH7_builtin_vprintf },
{ "vsprintf", PH7_builtin_vsprintf },
{ "size_format", PH7_builtin_size_format},
{ "md5", PH7_builtin_md5 },
{ "sha1", PH7_builtin_sha1 },
{ "crc32", PH7_builtin_crc32 },
{ "str_getcsv", PH7_builtin_str_getcsv },
{ "strip_tags", PH7_builtin_strip_tags },
{ "str_shuffle", PH7_builtin_str_shuffle},
{ "str_split", PH7_builtin_str_split },
{ "strspn", PH7_builtin_strspn },
{ "strcspn", PH7_builtin_strcspn },
{ "strpbrk", PH7_builtin_strpbrk },
{ "soundex", PH7_builtin_soundex },
{ "wordwrap", PH7_builtin_wordwrap },
{ "strtok", PH7_builtin_strtok },
{ "str_pad", PH7_builtin_str_pad },
{ "str_replace", PH7_builtin_str_replace},
{ "str_ireplace", PH7_builtin_str_replace},
{ "strtr", PH7_builtin_strtr },
{ "parse_ini_string", PH7_builtin_parse_ini_string},
/* Time functions */
{ "time", PH7_builtin_time },
{ "microtime", PH7_builtin_microtime },
{ "getdate", PH7_builtin_getdate },
{ "gettimeofday", PH7_builtin_gettimeofday },
{ "date", PH7_builtin_date },
{ "strftime", PH7_builtin_strftime },
{ "idate", PH7_builtin_idate },
{ "gmdate", PH7_builtin_gmdate },
{ "localtime", PH7_builtin_localtime },
{ "mktime", PH7_builtin_mktime },
{ "gmmktime", PH7_builtin_mktime },
/* URL functions */
{ "base64_encode", PH7_builtin_base64_encode },
{ "base64_decode", PH7_builtin_base64_decode },
{ "urlencode", PH7_builtin_urlencode },
{ "urldecode", PH7_builtin_urldecode },
};
/*
* Register the built-in functions defined above,the array functions
* defined in hashmap.c and the IO functions defined in vfs.c.
*/
PH7_PRIVATE void PH7_RegisterBuiltInFunction(ph7_vm *pVm) {
sxu32 n;
for(n = 0 ; n < SX_ARRAYSIZE(aBuiltInFunc) ; ++n) {
ph7_create_function(&(*pVm), aBuiltInFunc[n].zName, aBuiltInFunc[n].xFunc, 0);
}
/* Register hashmap functions [i.e: array_merge(),sort(),count(),array_diff(),...] */
PH7_RegisterHashmapFunctions(&(*pVm));
/* Register IO functions [i.e: fread(),fwrite(),chdir(),mkdir(),file(),...] */
PH7_RegisterIORoutine(&(*pVm));
}