* ANSI emulation wrappers
*/
-int winansi_fputs(const char *str, FILE *stream);
-int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
-int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
-#define fputs winansi_fputs
-#define printf(...) winansi_printf(__VA_ARGS__)
-#define fprintf(...) winansi_fprintf(__VA_ARGS__)
+void winansi_init(void);
+HANDLE winansi_get_osfhandle(int fd);
/*
* git specific compatibility
char **make_augmented_environ(const char *const *vars);
void free_environ(char **env);
+/**
+ * Converts UTF-8 encoded string to UTF-16LE.
+ *
+ * To support repositories with legacy-encoded file names, invalid UTF-8 bytes
+ * 0xa0 - 0xff are converted to corresponding printable Unicode chars \u00a0 -
+ * \u00ff, and invalid UTF-8 bytes 0x80 - 0x9f (which would make non-printable
+ * Unicode) are converted to hex-code.
+ *
+ * Lead-bytes not followed by an appropriate number of trail-bytes, over-long
+ * encodings and 4-byte encodings > \u10ffff are detected as invalid UTF-8.
+ *
+ * Maximum space requirement for the target buffer is two wide chars per UTF-8
+ * char (((strlen(utf) * 2) + 1) [* sizeof(wchar_t)]).
+ *
+ * The maximum space is needed only if the entire input string consists of
+ * invalid UTF-8 bytes in range 0x80-0x9f, as per the following table:
+ *
+ * | | UTF-8 | UTF-16 |
+ * Code point | UTF-8 sequence | bytes | words | ratio
+ * --------------+-------------------+-------+--------+-------
+ * 000000-00007f | 0-7f | 1 | 1 | 1
+ * 000080-0007ff | c2-df + 80-bf | 2 | 1 | 0.5
+ * 000800-00ffff | e0-ef + 2 * 80-bf | 3 | 1 | 0.33
+ * 010000-10ffff | f0-f4 + 3 * 80-bf | 4 | 2 (a) | 0.5
+ * invalid | 80-9f | 1 | 2 (b) | 2
+ * invalid | a0-ff | 1 | 1 | 1
+ *
+ * (a) encoded as UTF-16 surrogate pair
+ * (b) encoded as two hex digits
+ *
+ * Note that, while the UTF-8 encoding scheme can be extended to 5-byte, 6-byte
+ * or even indefinite-byte sequences, the largest valid code point \u10ffff
+ * encodes as only 4 UTF-8 bytes.
+ *
+ * Parameters:
+ * wcs: wide char target buffer
+ * utf: string to convert
+ * wcslen: size of target buffer (in wchar_t's)
+ * utflen: size of string to convert, or -1 if 0-terminated
+ *
+ * Returns:
+ * length of converted string (_wcslen(wcs)), or -1 on failure
+ *
+ * Errors:
+ * EINVAL: one of the input parameters is invalid (e.g. NULL)
+ * ERANGE: the output buffer is too small
+ */
+int xutftowcsn(wchar_t *wcs, const char *utf, size_t wcslen, int utflen);
+
+/**
+ * Simplified variant of xutftowcsn, assumes input string is \0-terminated.
+ */
+static inline int xutftowcs(wchar_t *wcs, const char *utf, size_t wcslen)
+{
+ return xutftowcsn(wcs, utf, wcslen, -1);
+}
+
+/**
+ * Simplified file system specific variant of xutftowcsn, assumes output
+ * buffer size is MAX_PATH wide chars and input string is \0-terminated,
+ * fails with ENAMETOOLONG if input string is too long.
+ */
+static inline int xutftowcs_path(wchar_t *wcs, const char *utf)
+{
+ int result = xutftowcsn(wcs, utf, MAX_PATH, -1);
+ if (result < 0 && errno == ERANGE)
+ errno = ENAMETOOLONG;
+ return result;
+}
+
+/**
+ * Converts UTF-16LE encoded string to UTF-8.
+ *
+ * Maximum space requirement for the target buffer is three UTF-8 chars per
+ * wide char ((_wcslen(wcs) * 3) + 1).
+ *
+ * The maximum space is needed only if the entire input string consists of
+ * UTF-16 words in range 0x0800-0xd7ff or 0xe000-0xffff (i.e. \u0800-\uffff
+ * modulo surrogate pairs), as per the following table:
+ *
+ * | | UTF-16 | UTF-8 |
+ * Code point | UTF-16 sequence | words | bytes | ratio
+ * --------------+-----------------------+--------+-------+-------
+ * 000000-00007f | 0000-007f | 1 | 1 | 1
+ * 000080-0007ff | 0080-07ff | 1 | 2 | 2
+ * 000800-00ffff | 0800-d7ff / e000-ffff | 1 | 3 | 3
+ * 010000-10ffff | d800-dbff + dc00-dfff | 2 | 4 | 2
+ *
+ * Note that invalid code points > 10ffff cannot be represented in UTF-16.
+ *
+ * Parameters:
+ * utf: target buffer
+ * wcs: wide string to convert
+ * utflen: size of target buffer
+ *
+ * Returns:
+ * length of converted string, or -1 on failure
+ *
+ * Errors:
+ * EINVAL: one of the input parameters is invalid (e.g. NULL)
+ * ERANGE: the output buffer is too small
+ */
+int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen);
+
/*
* A critical section used in the implementation of the spawn
* functions (mingw_spawnv[p]e()) and waitpid(). Intialised in
extern CRITICAL_SECTION pinfo_cs;
/*
- * A replacement of main() that ensures that argv[0] has a path
- * and that default fmode and std(in|out|err) are in binary mode
+ * A replacement of main() that adds win32 specific initialization.
*/
+void mingw_startup();
#define main(c,v) dummy_decl_mingw_main(); \
static int mingw_main(c,v); \
int main(int argc, char **argv) \
{ \
- extern CRITICAL_SECTION pinfo_cs; \
- _fmode = _O_BINARY; \
- _setmode(_fileno(stdin), _O_BINARY); \
- _setmode(_fileno(stdout), _O_BINARY); \
- _setmode(_fileno(stderr), _O_BINARY); \
- argv[0] = xstrdup(_pgmptr); \
- InitializeCriticalSection(&pinfo_cs); \
- return mingw_main(argc, argv); \
+ mingw_startup(); \
+ return mingw_main(__argc, (void *)__argv); \
} \
static int mingw_main(c,v)