Implement printf-alike wide string formatting mechanism, currently without floating point numbers support

sdk/xtdk/rtlfuncs.h

@@ -12,6 +12,7 @@
 #include <xtdefs.h>
 #include <xtstruct.h>
 #include <xttypes.h>
+#include <rtltypes.h>
 
 
 /* Routines used by XTLDR */
@@ -122,6 +123,12 @@ RtlFillMemory(OUT PVOID Destination,
               IN SIZE_T Length,
               IN UCHAR Value);
 
+XTAPI
+XTSTATUS
+RtlFormatWideString(IN PRTL_PRINT_CONTEXT Context,
+                    IN PCWSTR Format,
+                    IN VA_LIST ArgumentList);
+
 XTAPI
 VOID
 RtlMoveMemory(OUT PVOID Destination,

sdk/xtdk/rtltypes.h

@@ -17,14 +17,33 @@
 #define GUID_STRING_LENGTH              38
 #define PARTUUID_STRING_LENGTH          13
 
+/* Maximum integer value string length */
+#define MAX_INTEGER_STRING_SIZE         25
+
 /* Floating point definitions */
 #define DOUBLE_EXPONENT_MASK            0x7FF0000000000000ULL
 #define DOUBLE_EXPONENT_SHIFT           0x34
 #define DOUBLE_EXPONENT_BIAS            0x3FF
 
 /* Runtime Library routine callbacks */
-typedef VOID (*PWRITE_CHARACTER)(IN CHAR Character);
-typedef VOID (*PWRITE_WIDE_CHARACTER)(IN WCHAR Character);
+typedef XTSTATUS (*PWRITE_CHARACTER)(IN CHAR Character);
+typedef XTSTATUS (*PWRITE_WIDE_CHARACTER)(IN WCHAR Character);
+
+/* Variable types enumeration list */
+typedef enum _RTL_VARIABLE_TYPE
+{
+    Unknown,
+    AnsiString,
+    Boolean,
+    Char,
+    Float,
+    Guid,
+    Integer,
+    String,
+    UnicodeString,
+    WideChar,
+    WideString
+} RTL_VARIABLE_TYPE, *PRTL_VARIABLE_TYPE;
 
 /* Runtime Library print context structure definition */
 typedef struct _RTL_PRINT_CONTEXT
@@ -32,7 +51,29 @@ typedef struct _RTL_PRINT_CONTEXT
     PWRITE_CHARACTER WriteCharacter;
     PWRITE_WIDE_CHARACTER WriteWideCharacter;
     ULONG CharactersWritten;
-    ULONG Limit;
 } RTL_PRINT_CONTEXT, *PRTL_PRINT_CONTEXT;
 
+/* Runtime Library print format properties structure definition */
+typedef struct _RTL_PRINT_FORMAT_PROPERTIES
+{
+    RTL_VARIABLE_TYPE VariableType;
+    ULONG Radix;
+    LONG FieldWidth;
+    LONG IntegerSize;
+    LONG Precision;
+    BOOLEAN AlwaysPrintSign;
+    BOOLEAN LongDouble;
+    BOOLEAN LongInteger;
+    BOOLEAN LeftJustified;
+    BOOLEAN PrintUpperCase;
+    BOOLEAN PrintLeadingZeroes;
+    BOOLEAN PrintRadix;
+    BOOLEAN SpaceForPlus;
+    BOOLEAN ThousandsGrouping;
+    BOOLEAN UnsignedValue;
+    BOOLEAN FloatFormat;
+    BOOLEAN ScientificFormat;
+    BOOLEAN SignificantDigitPrecision;
+} RTL_PRINT_FORMAT_PROPERTIES, *PRTL_PRINT_FORMAT_PROPERTIES;
+
 #endif /* __XTDK_RTLTYPES_H */

xtoskrnl/includes/rtli.h

@@ -290,4 +290,46 @@ XTCDECL
 VOID
 RtlRemoveEntryList(IN PLIST_ENTRY Entry);
 
+XTAPI
+XTSTATUS
+RtlpFormatWideStringArgumentSpecifier(IN PRTL_PRINT_CONTEXT Context,
+                                     IN PCWSTR Format,
+                                     IN PVA_LIST ArgumentList,
+                                     IN OUT PULONG Index);
+
+XTAPI
+ULONGLONG
+RtlpGetWideStringArgument(IN PVA_LIST ArgumentList,
+                          IN ULONG ArgumentNumber,
+                          IN LONG ArgumentSize);
+
+XTAPI
+ULONGLONG
+RtlpGetWideStringSpecifierValue(IN PWCHAR *Format);
+
+XTAPI
+XTSTATUS
+RtlpWriteWideCharacter(IN PRTL_PRINT_CONTEXT Context,
+                       IN WCHAR Character);
+
+XTAPI
+XTSTATUS
+RtlpWriteWideStringIntegerValue(IN PRTL_PRINT_CONTEXT Context,
+                                IN PRTL_PRINT_FORMAT_PROPERTIES FormatProperties,
+                                IN ULONGLONG Integer);
+
+XTAPI
+XTSTATUS
+RtlpWriteWideStringStringValue(PRTL_PRINT_CONTEXT Context,
+                               PRTL_PRINT_FORMAT_PROPERTIES FormatProperties,
+                               PCHAR String,
+                               BOOLEAN Character);
+
+XTAPI
+XTSTATUS
+RtlpWriteWideStringValue(PRTL_PRINT_CONTEXT Context,
+                         PRTL_PRINT_FORMAT_PROPERTIES FormatProperties,
+                         PWCHAR String,
+                         BOOLEAN Character);
+
 #endif /* __XTOSKRNL_RTLI_H */