Mercurial > sdl-ios-xcode
diff src/stdlib/SDL_iconv.c @ 1662:782fd950bd46 SDL-1.3
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid.
The code is now run through a consistent indent format:
indent -i4 -nut -nsc -br -ce
The headers are being converted to automatically generate doxygen documentation.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 28 May 2006 13:04:16 +0000 |
| parents | c99e7a9c9bc9 |
| children | 4da1ee79c9af |
line wrap: on
line diff
--- a/src/stdlib/SDL_iconv.c Sun May 21 17:27:13 2006 +0000 +++ b/src/stdlib/SDL_iconv.c Sun May 28 13:04:16 2006 +0000 @@ -30,24 +30,25 @@ #include <errno.h> -size_t SDL_iconv(SDL_iconv_t cd, - char **inbuf, size_t *inbytesleft, - char **outbuf, size_t *outbytesleft) +size_t +SDL_iconv (SDL_iconv_t cd, + char **inbuf, size_t * inbytesleft, + char **outbuf, size_t * outbytesleft) { - size_t retCode = iconv(cd, inbuf, inbytesleft, outbuf, outbytesleft); - if ( retCode == (size_t)-1 ) { - switch(errno) { - case E2BIG: - return SDL_ICONV_E2BIG; - case EILSEQ: - return SDL_ICONV_EILSEQ; - case EINVAL: - return SDL_ICONV_EINVAL; - default: - return SDL_ICONV_ERROR; - } - } - return retCode; + size_t retCode = iconv (cd, inbuf, inbytesleft, outbuf, outbytesleft); + if (retCode == (size_t) - 1) { + switch (errno) { + case E2BIG: + return SDL_ICONV_E2BIG; + case EILSEQ: + return SDL_ICONV_EILSEQ; + case EINVAL: + return SDL_ICONV_EINVAL; + default: + return SDL_ICONV_ERROR; + } + } + return retCode; } #else @@ -61,19 +62,20 @@ #define UNKNOWN_ASCII '?' #define UNKNOWN_UNICODE 0xFFFD -enum { - ENCODING_UNKNOWN, - ENCODING_ASCII, - ENCODING_LATIN1, - ENCODING_UTF8, - ENCODING_UTF16, /* Needs byte order marker */ - ENCODING_UTF16BE, - ENCODING_UTF16LE, - ENCODING_UTF32, /* Needs byte order marker */ - ENCODING_UTF32BE, - ENCODING_UTF32LE, - ENCODING_UCS2, /* Native byte order assumed */ - ENCODING_UCS4, /* Native byte order assumed */ +enum +{ + ENCODING_UNKNOWN, + ENCODING_ASCII, + ENCODING_LATIN1, + ENCODING_UTF8, + ENCODING_UTF16, /* Needs byte order marker */ + ENCODING_UTF16BE, + ENCODING_UTF16LE, + ENCODING_UTF32, /* Needs byte order marker */ + ENCODING_UTF32BE, + ENCODING_UTF32LE, + ENCODING_UCS2, /* Native byte order assumed */ + ENCODING_UCS4, /* Native byte order assumed */ }; #if SDL_BYTEORDER == SDL_BIG_ENDIAN #define ENCODING_UTF16NATIVE ENCODING_UTF16BE @@ -85,730 +87,732 @@ struct _SDL_iconv_t { - int src_fmt; - int dst_fmt; + int src_fmt; + int dst_fmt; }; -static struct { - const char *name; - int format; +static struct +{ + const char *name; + int format; } encodings[] = { - { "ASCII", ENCODING_ASCII }, - { "US-ASCII", ENCODING_ASCII }, - { "LATIN1", ENCODING_LATIN1 }, - { "ISO-8859-1", ENCODING_LATIN1 }, - { "UTF8", ENCODING_UTF8 }, - { "UTF-8", ENCODING_UTF8 }, - { "UTF16", ENCODING_UTF16 }, - { "UTF-16", ENCODING_UTF16 }, - { "UTF16BE", ENCODING_UTF16BE }, - { "UTF-16BE", ENCODING_UTF16BE }, - { "UTF16LE", ENCODING_UTF16LE }, - { "UTF-16LE", ENCODING_UTF16LE }, - { "UTF32", ENCODING_UTF32 }, - { "UTF-32", ENCODING_UTF32 }, - { "UTF32BE", ENCODING_UTF32BE }, - { "UTF-32BE", ENCODING_UTF32BE }, - { "UTF32LE", ENCODING_UTF32LE }, - { "UTF-32LE", ENCODING_UTF32LE }, - { "UCS2", ENCODING_UCS2 }, - { "UCS-2", ENCODING_UCS2 }, - { "UCS4", ENCODING_UCS4 }, - { "UCS-4", ENCODING_UCS4 }, -}; + { + "ASCII", ENCODING_ASCII}, { + "US-ASCII", ENCODING_ASCII}, { + "LATIN1", ENCODING_LATIN1}, { + "ISO-8859-1", ENCODING_LATIN1}, { + "UTF8", ENCODING_UTF8}, { + "UTF-8", ENCODING_UTF8}, { + "UTF16", ENCODING_UTF16}, { + "UTF-16", ENCODING_UTF16}, { + "UTF16BE", ENCODING_UTF16BE}, { + "UTF-16BE", ENCODING_UTF16BE}, { + "UTF16LE", ENCODING_UTF16LE}, { + "UTF-16LE", ENCODING_UTF16LE}, { + "UTF32", ENCODING_UTF32}, { + "UTF-32", ENCODING_UTF32}, { + "UTF32BE", ENCODING_UTF32BE}, { + "UTF-32BE", ENCODING_UTF32BE}, { + "UTF32LE", ENCODING_UTF32LE}, { + "UTF-32LE", ENCODING_UTF32LE}, { + "UCS2", ENCODING_UCS2}, { + "UCS-2", ENCODING_UCS2}, { + "UCS4", ENCODING_UCS4}, { +"UCS-4", ENCODING_UCS4},}; -SDL_iconv_t SDL_iconv_open(const char *tocode, const char *fromcode) +SDL_iconv_t +SDL_iconv_open (const char *tocode, const char *fromcode) { - int src_fmt = ENCODING_UNKNOWN; - int dst_fmt = ENCODING_UNKNOWN; - int i; + int src_fmt = ENCODING_UNKNOWN; + int dst_fmt = ENCODING_UNKNOWN; + int i; - for ( i = 0; i < SDL_arraysize(encodings); ++i ) { - if ( SDL_strcasecmp(fromcode, encodings[i].name) == 0 ) { - src_fmt = encodings[i].format; - if ( dst_fmt != ENCODING_UNKNOWN ) { - break; - } - } - if ( SDL_strcasecmp(tocode, encodings[i].name) == 0 ) { - dst_fmt = encodings[i].format; - if ( src_fmt != ENCODING_UNKNOWN ) { - break; - } - } - } - if ( src_fmt != ENCODING_UNKNOWN && dst_fmt != ENCODING_UNKNOWN ) { - SDL_iconv_t cd = (SDL_iconv_t)SDL_malloc(sizeof(*cd)); - if ( cd ) { - cd->src_fmt = src_fmt; - cd->dst_fmt = dst_fmt; - return cd; - } - } - return (SDL_iconv_t)-1; + for (i = 0; i < SDL_arraysize (encodings); ++i) { + if (SDL_strcasecmp (fromcode, encodings[i].name) == 0) { + src_fmt = encodings[i].format; + if (dst_fmt != ENCODING_UNKNOWN) { + break; + } + } + if (SDL_strcasecmp (tocode, encodings[i].name) == 0) { + dst_fmt = encodings[i].format; + if (src_fmt != ENCODING_UNKNOWN) { + break; + } + } + } + if (src_fmt != ENCODING_UNKNOWN && dst_fmt != ENCODING_UNKNOWN) { + SDL_iconv_t cd = (SDL_iconv_t) SDL_malloc (sizeof (*cd)); + if (cd) { + cd->src_fmt = src_fmt; + cd->dst_fmt = dst_fmt; + return cd; + } + } + return (SDL_iconv_t) - 1; } -size_t SDL_iconv(SDL_iconv_t cd, - char **inbuf, size_t *inbytesleft, - char **outbuf, size_t *outbytesleft) +size_t +SDL_iconv (SDL_iconv_t cd, + char **inbuf, size_t * inbytesleft, + char **outbuf, size_t * outbytesleft) { - /* For simplicity, we'll convert everything to and from UCS-4 */ - char *src, *dst; - size_t srclen, dstlen; - Uint32 ch; - size_t total; + /* For simplicity, we'll convert everything to and from UCS-4 */ + char *src, *dst; + size_t srclen, dstlen; + Uint32 ch; + size_t total; - if ( !inbuf || !*inbuf ) { - /* Reset the context */ - return 0; - } - if ( !outbuf || !*outbuf || !outbytesleft || !*outbytesleft ) { - return SDL_ICONV_E2BIG; - } - src = *inbuf; - srclen = (inbytesleft ? *inbytesleft : 0); - dst = *outbuf; - dstlen = *outbytesleft; + if (!inbuf || !*inbuf) { + /* Reset the context */ + return 0; + } + if (!outbuf || !*outbuf || !outbytesleft || !*outbytesleft) { + return SDL_ICONV_E2BIG; + } + src = *inbuf; + srclen = (inbytesleft ? *inbytesleft : 0); + dst = *outbuf; + dstlen = *outbytesleft; - switch ( cd->src_fmt ) { - case ENCODING_UTF16: - /* Scan for a byte order marker */ - { - Uint8 *p = (Uint8 *)src; - size_t n = srclen / 2; - while ( n ) { - if ( p[0] == 0xFF && p[1] == 0xFE ) { - cd->src_fmt = ENCODING_UTF16BE; - break; - } else if ( p[0] == 0xFE && p[1] == 0xFF ) { - cd->src_fmt = ENCODING_UTF16LE; - break; - } - p += 2; - --n; - } - if ( n == 0 ) { - /* We can't tell, default to host order */ - cd->src_fmt = ENCODING_UTF16NATIVE; - } - } - break; - case ENCODING_UTF32: - /* Scan for a byte order marker */ - { - Uint8 *p = (Uint8 *)src; - size_t n = srclen / 4; - while ( n ) { - if ( p[0] == 0xFF && p[1] == 0xFE && - p[2] == 0x00 && p[3] == 0x00 ) { - cd->src_fmt = ENCODING_UTF32BE; - break; - } else if ( p[0] == 0x00 && p[1] == 0x00 && - p[2] == 0xFE && p[3] == 0xFF ) { - cd->src_fmt = ENCODING_UTF32LE; - break; - } - p += 4; - --n; - } - if ( n == 0 ) { - /* We can't tell, default to host order */ - cd->src_fmt = ENCODING_UTF32NATIVE; - } - } - break; - } + switch (cd->src_fmt) { + case ENCODING_UTF16: + /* Scan for a byte order marker */ + { + Uint8 *p = (Uint8 *) src; + size_t n = srclen / 2; + while (n) { + if (p[0] == 0xFF && p[1] == 0xFE) { + cd->src_fmt = ENCODING_UTF16BE; + break; + } else if (p[0] == 0xFE && p[1] == 0xFF) { + cd->src_fmt = ENCODING_UTF16LE; + break; + } + p += 2; + --n; + } + if (n == 0) { + /* We can't tell, default to host order */ + cd->src_fmt = ENCODING_UTF16NATIVE; + } + } + break; + case ENCODING_UTF32: + /* Scan for a byte order marker */ + { + Uint8 *p = (Uint8 *) src; + size_t n = srclen / 4; + while (n) { + if (p[0] == 0xFF && p[1] == 0xFE && + p[2] == 0x00 && p[3] == 0x00) { + cd->src_fmt = ENCODING_UTF32BE; + break; + } else if (p[0] == 0x00 && p[1] == 0x00 && + p[2] == 0xFE && p[3] == 0xFF) { + cd->src_fmt = ENCODING_UTF32LE; + break; + } + p += 4; + --n; + } + if (n == 0) { + /* We can't tell, default to host order */ + cd->src_fmt = ENCODING_UTF32NATIVE; + } + } + break; + } - switch ( cd->dst_fmt ) { - case ENCODING_UTF16: - /* Default to host order, need to add byte order marker */ - if ( dstlen < 2 ) { - return SDL_ICONV_E2BIG; - } - *(Uint16 *)dst = UNICODE_BOM; - dst += 2; - dstlen -= 2; - cd->dst_fmt = ENCODING_UTF16NATIVE; - break; - case ENCODING_UTF32: - /* Default to host order, need to add byte order marker */ - if ( dstlen < 4 ) { - return SDL_ICONV_E2BIG; - } - *(Uint32 *)dst = UNICODE_BOM; - dst += 4; - dstlen -= 4; - cd->dst_fmt = ENCODING_UTF32NATIVE; - break; - } + switch (cd->dst_fmt) { + case ENCODING_UTF16: + /* Default to host order, need to add byte order marker */ + if (dstlen < 2) { + return SDL_ICONV_E2BIG; + } + *(Uint16 *) dst = UNICODE_BOM; + dst += 2; + dstlen -= 2; + cd->dst_fmt = ENCODING_UTF16NATIVE; + break; + case ENCODING_UTF32: + /* Default to host order, need to add byte order marker */ + if (dstlen < 4) { + return SDL_ICONV_E2BIG; + } + *(Uint32 *) dst = UNICODE_BOM; + dst += 4; + dstlen -= 4; + cd->dst_fmt = ENCODING_UTF32NATIVE; + break; + } - total = 0; - while ( srclen > 0 ) { - /* Decode a character */ - switch ( cd->src_fmt ) { - case ENCODING_ASCII: - { - Uint8 *p = (Uint8 *)src; - ch = (Uint32)(p[0] & 0x7F); - ++src; - --srclen; - } - break; - case ENCODING_LATIN1: - { - Uint8 *p = (Uint8 *)src; - ch = (Uint32)p[0]; - ++src; - --srclen; - } - break; - case ENCODING_UTF8: /* RFC 3629 */ - { - Uint8 *p = (Uint8 *)src; - size_t left = 0; - SDL_bool overlong = SDL_FALSE; - if ( p[0] >= 0xFC ) { - if ( (p[0] & 0xFE) != 0xFC ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - } else { - if ( p[0] == 0xFC ) { - overlong = SDL_TRUE; - } - ch = (Uint32)(p[0] & 0x01); - left = 5; - } - } else if ( p[0] >= 0xF8 ) { - if ( (p[0] & 0xFC) != 0xF8 ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - } else { - if ( p[0] == 0xF8 ) { - overlong = SDL_TRUE; - } - ch = (Uint32)(p[0] & 0x03); - left = 4; - } - } else if ( p[0] >= 0xF0 ) { - if ( (p[0] & 0xF8) != 0xF0 ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - } else { - if ( p[0] == 0xF0 ) { - overlong = SDL_TRUE; - } - ch = (Uint32)(p[0] & 0x07); - left = 3; - } - } else if ( p[0] >= 0xE0 ) { - if ( (p[0] & 0xF0) != 0xE0 ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - } else { - if ( p[0] == 0xE0 ) { - overlong = SDL_TRUE; - } - ch = (Uint32)(p[0] & 0x0F); - left = 2; - } - } else if ( p[0] >= 0xC0 ) { - if ( (p[0] & 0xE0) != 0xC0 ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - } else { - if ( (p[0] & 0xCE) == 0xC0 ) { - overlong = SDL_TRUE; - } - ch = (Uint32)(p[0] & 0x1F); - left = 1; - } - } else { - if ( (p[0] & 0x80) != 0x00 ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - } else { - ch = (Uint32)p[0]; - } - } - ++src; - --srclen; - if ( srclen < left ) { - return SDL_ICONV_EINVAL; - } - while ( left-- ) { - ++p; - if ( (p[0] & 0xC0) != 0x80 ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - break; - } - ch <<= 6; - ch |= (p[0] & 0x3F); - ++src; - --srclen; - } - if ( overlong ) { - /* Potential security risk - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - } - if ( (ch >= 0xD800 && ch <= 0xDFFF) || - (ch == 0xFFFE || ch == 0xFFFF) || - ch > 0x10FFFF ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - } - } - break; - case ENCODING_UTF16BE: /* RFC 2781 */ - { - Uint8 *p = (Uint8 *)src; - Uint16 W1, W2; - if ( srclen < 2 ) { - return SDL_ICONV_EINVAL; - } - W1 = ((Uint16)p[0] << 8) | - (Uint16)p[1]; - src += 2; - srclen -= 2; - if ( W1 < 0xD800 || W1 > 0xDFFF ) { - ch = (Uint32)W1; - break; - } - if ( W1 > 0xDBFF ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - break; - } - if ( srclen < 2 ) { - return SDL_ICONV_EINVAL; - } - p = (Uint8 *)src; - W2 = ((Uint16)p[0] << 8) | - (Uint16)p[1]; - src += 2; - srclen -= 2; - if ( W2 < 0xDC00 || W2 > 0xDFFF ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - break; - } - ch = (((Uint32)(W1 & 0x3FF) << 10) | - (Uint32)(W2 & 0x3FF)) + 0x10000; - } - break; - case ENCODING_UTF16LE: /* RFC 2781 */ - { - Uint8 *p = (Uint8 *)src; - Uint16 W1, W2; - if ( srclen < 2 ) { - return SDL_ICONV_EINVAL; - } - W1 = ((Uint16)p[1] << 8) | - (Uint16)p[0]; - src += 2; - srclen -= 2; - if ( W1 < 0xD800 || W1 > 0xDFFF ) { - ch = (Uint32)W1; - break; - } - if ( W1 > 0xDBFF ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - break; - } - if ( srclen < 2 ) { - return SDL_ICONV_EINVAL; - } - p = (Uint8 *)src; - W2 = ((Uint16)p[1] << 8) | - (Uint16)p[0]; - src += 2; - srclen -= 2; - if ( W2 < 0xDC00 || W2 > 0xDFFF ) { - /* Skip illegal sequences - return SDL_ICONV_EILSEQ; - */ - ch = UNKNOWN_UNICODE; - break; - } - ch = (((Uint32)(W1 & 0x3FF) << 10) | - (Uint32)(W2 & 0x3FF)) + 0x10000; - } - break; - case ENCODING_UTF32BE: - { - Uint8 *p = (Uint8 *)src; - if ( srclen < 4 ) { - return SDL_ICONV_EINVAL; - } - ch = ((Uint32)p[0] << 24) | - ((Uint32)p[1] << 16) | - ((Uint32)p[2] << 8) | - (Uint32)p[3]; - src += 4; - srclen -= 4; - } - break; - case ENCODING_UTF32LE: - { - Uint8 *p = (Uint8 *)src; - if ( srclen < 4 ) { - return SDL_ICONV_EINVAL; - } - ch = ((Uint32)p[3] << 24) | - ((Uint32)p[2] << 16) | - ((Uint32)p[1] << 8) | - (Uint32)p[0]; - src += 4; - srclen -= 4; - } - break; - case ENCODING_UCS2: - { - Uint16 *p = (Uint16 *)src; - if ( srclen < 2 ) { - return SDL_ICONV_EINVAL; - } - ch = *p; - src += 2; - srclen -= 2; - } - break; - case ENCODING_UCS4: - { - Uint32 *p = (Uint32 *)src; - if ( srclen < 4 ) { - return SDL_ICONV_EINVAL; - } - ch = *p; - src += 4; - srclen -= 4; - } - break; - } + total = 0; + while (srclen > 0) { + /* Decode a character */ + switch (cd->src_fmt) { + case ENCODING_ASCII: + { + Uint8 *p = (Uint8 *) src; + ch = (Uint32) (p[0] & 0x7F); + ++src; + --srclen; + } + break; + case ENCODING_LATIN1: + { + Uint8 *p = (Uint8 *) src; + ch = (Uint32) p[0]; + ++src; + --srclen; + } + break; + case ENCODING_UTF8: /* RFC 3629 */ + { + Uint8 *p = (Uint8 *) src; + size_t left = 0; + SDL_bool overlong = SDL_FALSE; + if (p[0] >= 0xFC) { + if ((p[0] & 0xFE) != 0xFC) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + } else { + if (p[0] == 0xFC) { + overlong = SDL_TRUE; + } + ch = (Uint32) (p[0] & 0x01); + left = 5; + } + } else if (p[0] >= 0xF8) { + if ((p[0] & 0xFC) != 0xF8) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + } else { + if (p[0] == 0xF8) { + overlong = SDL_TRUE; + } + ch = (Uint32) (p[0] & 0x03); + left = 4; + } + } else if (p[0] >= 0xF0) { + if ((p[0] & 0xF8) != 0xF0) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + } else { + if (p[0] == 0xF0) { + overlong = SDL_TRUE; + } + ch = (Uint32) (p[0] & 0x07); + left = 3; + } + } else if (p[0] >= 0xE0) { + if ((p[0] & 0xF0) != 0xE0) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + } else { + if (p[0] == 0xE0) { + overlong = SDL_TRUE; + } + ch = (Uint32) (p[0] & 0x0F); + left = 2; + } + } else if (p[0] >= 0xC0) { + if ((p[0] & 0xE0) != 0xC0) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + } else { + if ((p[0] & 0xCE) == 0xC0) { + overlong = SDL_TRUE; + } + ch = (Uint32) (p[0] & 0x1F); + left = 1; + } + } else { + if ((p[0] & 0x80) != 0x00) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + } else { + ch = (Uint32) p[0]; + } + } + ++src; + --srclen; + if (srclen < left) { + return SDL_ICONV_EINVAL; + } + while (left--) { + ++p; + if ((p[0] & 0xC0) != 0x80) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + break; + } + ch <<= 6; + ch |= (p[0] & 0x3F); + ++src; + --srclen; + } + if (overlong) { + /* Potential security risk + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + } + if ((ch >= 0xD800 && ch <= 0xDFFF) || + (ch == 0xFFFE || ch == 0xFFFF) || ch > 0x10FFFF) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + } + } + break; + case ENCODING_UTF16BE: /* RFC 2781 */ + { + Uint8 *p = (Uint8 *) src; + Uint16 W1, W2; + if (srclen < 2) { + return SDL_ICONV_EINVAL; + } + W1 = ((Uint16) p[0] << 8) | (Uint16) p[1]; + src += 2; + srclen -= 2; + if (W1 < 0xD800 || W1 > 0xDFFF) { + ch = (Uint32) W1; + break; + } + if (W1 > 0xDBFF) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + break; + } + if (srclen < 2) { + return SDL_ICONV_EINVAL; + } + p = (Uint8 *) src; + W2 = ((Uint16) p[0] << 8) | (Uint16) p[1]; + src += 2; + srclen -= 2; + if (W2 < 0xDC00 || W2 > 0xDFFF) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + break; + } + ch = (((Uint32) (W1 & 0x3FF) << 10) | + (Uint32) (W2 & 0x3FF)) + 0x10000; + } + break; + case ENCODING_UTF16LE: /* RFC 2781 */ + { + Uint8 *p = (Uint8 *) src; + Uint16 W1, W2; + if (srclen < 2) { + return SDL_ICONV_EINVAL; + } + W1 = ((Uint16) p[1] << 8) | (Uint16) p[0]; + src += 2; + srclen -= 2; + if (W1 < 0xD800 || W1 > 0xDFFF) { + ch = (Uint32) W1; + break; + } + if (W1 > 0xDBFF) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + break; + } + if (srclen < 2) { + return SDL_ICONV_EINVAL; + } + p = (Uint8 *) src; + W2 = ((Uint16) p[1] << 8) | (Uint16) p[0]; + src += 2; + srclen -= 2; + if (W2 < 0xDC00 || W2 > 0xDFFF) { + /* Skip illegal sequences + return SDL_ICONV_EILSEQ; + */ + ch = UNKNOWN_UNICODE; + break; + } + ch = (((Uint32) (W1 & 0x3FF) << 10) | + (Uint32) (W2 & 0x3FF)) + 0x10000; + } + break; + case ENCODING_UTF32BE: + { + Uint8 *p = (Uint8 *) src; + if (srclen < 4) { + return SDL_ICONV_EINVAL; + } + ch = ((Uint32) p[0] << 24) | + ((Uint32) p[1] << 16) | + ((Uint32) p[2] << 8) | (Uint32) p[3]; + src += 4; + srclen -= 4; + } + break; + case ENCODING_UTF32LE: + { + Uint8 *p = (Uint8 *) src; + if (srclen < 4) { + return SDL_ICONV_EINVAL; + } + ch = ((Uint32) p[3] << 24) | + ((Uint32) p[2] << 16) | + ((Uint32) p[1] << 8) | (Uint32) p[0]; + src += 4; + srclen -= 4; + } + break; + case ENCODING_UCS2: + { + Uint16 *p = (Uint16 *) src; + if (srclen < 2) { + return SDL_ICONV_EINVAL; + } + ch = *p; + src += 2; + srclen -= 2; + } + break; + case ENCODING_UCS4: + { + Uint32 *p = (Uint32 *) src; + if (srclen < 4) { + return SDL_ICONV_EINVAL; + } + ch = *p; + src += 4; + srclen -= 4; + } + break; + } - /* Encode a character */ - switch ( cd->dst_fmt ) { - case ENCODING_ASCII: - { - Uint8 *p = (Uint8 *)dst; - if ( dstlen < 1 ) { - return SDL_ICONV_E2BIG; - } - if ( ch > 0x7F ) { - *p = UNKNOWN_ASCII; - } else { - *p = (Uint8)ch; - } - ++dst; - --dstlen; - } - break; - case ENCODING_LATIN1: - { - Uint8 *p = (Uint8 *)dst; - if ( dstlen < 1 ) { - return SDL_ICONV_E2BIG; - } - if ( ch > 0xFF ) { - *p = UNKNOWN_ASCII; - } else { - *p = (Uint8)ch; - } - ++dst; - --dstlen; - } - break; - case ENCODING_UTF8: /* RFC 3629 */ - { - Uint8 *p = (Uint8 *)dst; - if ( ch > 0x10FFFF ) { - ch = UNKNOWN_UNICODE; - } - if ( ch <= 0x7F ) { - if ( dstlen < 1 ) { - return SDL_ICONV_E2BIG; - } - *p = (Uint8)ch; - ++dst; - --dstlen; - } else if ( ch <= 0x7FF ) { - if ( dstlen < 2 ) { - return SDL_ICONV_E2BIG; - } - p[0] = 0xC0 | (Uint8)((ch >> 6) & 0x1F); - p[1] = 0x80 | (Uint8)(ch & 0x3F); - dst += 2; - dstlen -= 2; - } else if ( ch <= 0xFFFF ) { - if ( dstlen < 3 ) { - return SDL_ICONV_E2BIG; - } - p[0] = 0xE0 | (Uint8)((ch >> 12) & 0x0F); - p[1] = 0x80 | (Uint8)((ch >> 6) & 0x3F); - p[2] = 0x80 | (Uint8)(ch & 0x3F); - dst += 3; - dstlen -= 3; - } else if ( ch <= 0x1FFFFF ) { - if ( dstlen < 4 ) { - return SDL_ICONV_E2BIG; - } - p[0] = 0xF0 | (Uint8)((ch >> 18) & 0x07); - p[1] = 0x80 | (Uint8)((ch >> 12) & 0x3F); - p[2] = 0x80 | (Uint8)((ch >> 6) & 0x3F); - p[3] = 0x80 | (Uint8)(ch & 0x3F); - dst += 4; - dstlen -= 4; - } else if ( ch <= 0x3FFFFFF ) { - if ( dstlen < 5 ) { - return SDL_ICONV_E2BIG; - } - p[0] = 0xF8 | (Uint8)((ch >> 24) & 0x03); - p[1] = 0x80 | (Uint8)((ch >> 18) & 0x3F); - p[2] = 0x80 | (Uint8)((ch >> 12) & 0x3F); - p[3] = 0x80 | (Uint8)((ch >> 6) & 0x3F); - p[4] = 0x80 | (Uint8)(ch & 0x3F); - dst += 5; - dstlen -= 5; - } else { - if ( dstlen < 6 ) { - return SDL_ICONV_E2BIG; - } - p[0] = 0xFC | (Uint8)((ch >> 30) & 0x01); - p[1] = 0x80 | (Uint8)((ch >> 24) & 0x3F); - p[2] = 0x80 | (Uint8)((ch >> 18) & 0x3F); - p[3] = 0x80 | (Uint8)((ch >> 12) & 0x3F); - p[4] = 0x80 | (Uint8)((ch >> 6) & 0x3F); - p[5] = 0x80 | (Uint8)(ch & 0x3F); - dst += 6; - dstlen -= 6; - } - } - break; - case ENCODING_UTF16BE: /* RFC 2781 */ - { - Uint8 *p = (Uint8 *)dst; - if ( ch > 0x10FFFF ) { - ch = UNKNOWN_UNICODE; - } - if ( ch < 0x10000 ) { - if ( dstlen < 2 ) { - return SDL_ICONV_E2BIG; - } - p[0] = (Uint8)(ch >> 8); - p[1] = (Uint8)ch; - dst += 2; - dstlen -= 2; - } else { - Uint16 W1, W2; - if ( dstlen < 4 ) { - return SDL_ICONV_E2BIG; - } - ch = ch - 0x10000; - W1 = 0xD800 | (Uint16)((ch >> 10) & 0x3FF); - W2 = 0xDC00 | (Uint16)(ch & 0x3FF); - p[0] = (Uint8)(W1 >> 8); - p[1] = (Uint8)W1; - p[2] = (Uint8)(W2 >> 8); - p[3] = (Uint8)W2; - dst += 4; - dstlen -= 4; - } - } - break; - case ENCODING_UTF16LE: /* RFC 2781 */ - { - Uint8 *p = (Uint8 *)dst; - if ( ch > 0x10FFFF ) { - ch = UNKNOWN_UNICODE; - } - if ( ch < 0x10000 ) { - if ( dstlen < 2 ) { - return SDL_ICONV_E2BIG; - } - p[1] = (Uint8)(ch >> 8); - p[0] = (Uint8)ch; - dst += 2; - dstlen -= 2; - } else { - Uint16 W1, W2; - if ( dstlen < 4 ) { - return SDL_ICONV_E2BIG; - } - ch = ch - 0x10000; - W1 = 0xD800 | (Uint16)((ch >> 10) & 0x3FF); - W2 = 0xDC00 | (Uint16)(ch & 0x3FF); - p[1] = (Uint8)(W1 >> 8); - p[0] = (Uint8)W1; - p[3] = (Uint8)(W2 >> 8); - p[2] = (Uint8)W2; - dst += 4; - dstlen -= 4; - } - } - break; - case ENCODING_UTF32BE: - { - Uint8 *p = (Uint8 *)dst; - if ( ch > 0x10FFFF ) { - ch = UNKNOWN_UNICODE; - } - if ( dstlen < 4 ) { - return SDL_ICONV_E2BIG; - } - p[0] = (Uint8)(ch >> 24); - p[1] = (Uint8)(ch >> 16); - p[2] = (Uint8)(ch >> 8); - p[3] = (Uint8)ch; - dst += 4; - dstlen -= 4; - } - break; - case ENCODING_UTF32LE: - { - Uint8 *p = (Uint8 *)dst; - if ( ch > 0x10FFFF ) { - ch = UNKNOWN_UNICODE; - } - if ( dstlen < 4 ) { - return SDL_ICONV_E2BIG; - } - p[3] = (Uint8)(ch >> 24); - p[2] = (Uint8)(ch >> 16); - p[1] = (Uint8)(ch >> 8); - p[0] = (Uint8)ch; - dst += 4; - dstlen -= 4; - } - break; - case ENCODING_UCS2: - { - Uint16 *p = (Uint16 *)dst; - if ( ch > 0xFFFF ) { - ch = UNKNOWN_UNICODE; - } - if ( dstlen < 2 ) { - return SDL_ICONV_E2BIG; - } - *p = (Uint16)ch; - dst += 2; - dstlen -= 2; - } - break; - case ENCODING_UCS4: - { - Uint32 *p = (Uint32 *)dst; - if ( ch > 0x7FFFFFFF ) { - ch = UNKNOWN_UNICODE; - } - if ( dstlen < 4 ) { - return SDL_ICONV_E2BIG; - } - *p = ch; - dst += 4; - dstlen -= 4; - } - break; - } + /* Encode a character */ + switch (cd->dst_fmt) { + case ENCODING_ASCII: + { + Uint8 *p = (Uint8 *) dst; + if (dstlen < 1) { + return SDL_ICONV_E2BIG; + } + if (ch > 0x7F) { + *p = UNKNOWN_ASCII; + } else { + *p = (Uint8) ch; + } + ++dst; + --dstlen; + } + break; + case ENCODING_LATIN1: + { + Uint8 *p = (Uint8 *) dst; + if (dstlen < 1) { + return SDL_ICONV_E2BIG; + } + if (ch > 0xFF) { + *p = UNKNOWN_ASCII; + } else { + *p = (Uint8) ch; + } + ++dst; + --dstlen; + } + break; + case ENCODING_UTF8: /* RFC 3629 */ + { + Uint8 *p = (Uint8 *) dst; + if (ch > 0x10FFFF) { + ch = UNKNOWN_UNICODE; + } + if (ch <= 0x7F) { + if (dstlen < 1) { + return SDL_ICONV_E2BIG; + } + *p = (Uint8) ch; + ++dst; + --dstlen; + } else if (ch <= 0x7FF) { + if (dstlen < 2) { + return SDL_ICONV_E2BIG; + } + p[0] = 0xC0 | (Uint8) ((ch >> 6) & 0x1F); + p[1] = 0x80 | (Uint8) (ch & 0x3F); + dst += 2; + dstlen -= 2; + } else if (ch <= 0xFFFF) { + if (dstlen < 3) { + return SDL_ICONV_E2BIG; + } + p[0] = 0xE0 | (Uint8) ((ch >> 12) & 0x0F); + p[1] = 0x80 | (Uint8) ((ch >> 6) & 0x3F); + p[2] = 0x80 | (Uint8) (ch & 0x3F); + dst += 3; + dstlen -= 3; + } else if (ch <= 0x1FFFFF) { + if (dstlen < 4) { + return SDL_ICONV_E2BIG; + } + p[0] = 0xF0 | (Uint8) ((ch >> 18) & 0x07); + p[1] = 0x80 | (Uint8) ((ch >> 12) & 0x3F); + p[2] = 0x80 | (Uint8) ((ch >> 6) & 0x3F); + p[3] = 0x80 | (Uint8) (ch & 0x3F); + dst += 4; + dstlen -= 4; + } else if (ch <= 0x3FFFFFF) { + if (dstlen < 5) { + return SDL_ICONV_E2BIG; + } + p[0] = 0xF8 | (Uint8) ((ch >> 24) & 0x03); + p[1] = 0x80 | (Uint8) ((ch >> 18) & 0x3F); + p[2] = 0x80 | (Uint8) ((ch >> 12) & 0x3F); + p[3] = 0x80 | (Uint8) ((ch >> 6) & 0x3F); + p[4] = 0x80 | (Uint8) (ch & 0x3F); + dst += 5; + dstlen -= 5; + } else { + if (dstlen < 6) { + return SDL_ICONV_E2BIG; + } + p[0] = 0xFC | (Uint8) ((ch >> 30) & 0x01); + p[1] = 0x80 | (Uint8) ((ch >> 24) & 0x3F); + p[2] = 0x80 | (Uint8) ((ch >> 18) & 0x3F); + p[3] = 0x80 | (Uint8) ((ch >> 12) & 0x3F); + p[4] = 0x80 | (Uint8) ((ch >> 6) & 0x3F); + p[5] = 0x80 | (Uint8) (ch & 0x3F); + dst += 6; + dstlen -= 6; + } + } + break; + case ENCODING_UTF16BE: /* RFC 2781 */ + { + Uint8 *p = (Uint8 *) dst; + if (ch > 0x10FFFF) { + ch = UNKNOWN_UNICODE; + } + if (ch < 0x10000) { + if (dstlen < 2) { + return SDL_ICONV_E2BIG; + } + p[0] = (Uint8) (ch >> 8); + p[1] = (Uint8) ch; + dst += 2; + dstlen -= 2; + } else { + Uint16 W1, W2; + if (dstlen < 4) { + return SDL_ICONV_E2BIG; + } + ch = ch - 0x10000; + W1 = 0xD800 | (Uint16) ((ch >> 10) & 0x3FF); + W2 = 0xDC00 | (Uint16) (ch & 0x3FF); + p[0] = (Uint8) (W1 >> 8); + p[1] = (Uint8) W1; + p[2] = (Uint8) (W2 >> 8); + p[3] = (Uint8) W2; + dst += 4; + dstlen -= 4; + } + } + break; + case ENCODING_UTF16LE: /* RFC 2781 */ + { + Uint8 *p = (Uint8 *) dst; + if (ch > 0x10FFFF) { + ch = UNKNOWN_UNICODE; + } + if (ch < 0x10000) { + if (dstlen < 2) { + return SDL_ICONV_E2BIG; + } + p[1] = (Uint8) (ch >> 8); + p[0] = (Uint8) ch; + dst += 2; + dstlen -= 2; + } else { + Uint16 W1, W2; + if (dstlen < 4) { + return SDL_ICONV_E2BIG; + } + ch = ch - 0x10000; + W1 = 0xD800 | (Uint16) ((ch >> 10) & 0x3FF); + W2 = 0xDC00 | (Uint16) (ch & 0x3FF); + p[1] = (Uint8) (W1 >> 8); + p[0] = (Uint8) W1; + p[3] = (Uint8) (W2 >> 8); + p[2] = (Uint8) W2; + dst += 4; + dstlen -= 4; + } + } + break; + case ENCODING_UTF32BE: + { + Uint8 *p = (Uint8 *) dst; + if (ch > 0x10FFFF) { + ch = UNKNOWN_UNICODE; + } + if (dstlen < 4) { + return SDL_ICONV_E2BIG; + } + p[0] = (Uint8) (ch >> 24); + p[1] = (Uint8) (ch >> 16); + p[2] = (Uint8) (ch >> 8); + p[3] = (Uint8) ch; + dst += 4; + dstlen -= 4; + } + break; + case ENCODING_UTF32LE: + { + Uint8 *p = (Uint8 *) dst; + if (ch > 0x10FFFF) { + ch = UNKNOWN_UNICODE; + } + if (dstlen < 4) { + return SDL_ICONV_E2BIG; + } + p[3] = (Uint8) (ch >> 24); + p[2] = (Uint8) (ch >> 16); + p[1] = (Uint8) (ch >> 8); + p[0] = (Uint8) ch; + dst += 4; + dstlen -= 4; + } + break; + case ENCODING_UCS2: + { + Uint16 *p = (Uint16 *) dst; + if (ch > 0xFFFF) { + ch = UNKNOWN_UNICODE; + } + if (dstlen < 2) { + return SDL_ICONV_E2BIG; + } + *p = (Uint16) ch; + dst += 2; + dstlen -= 2; + } + break; + case ENCODING_UCS4: + { + Uint32 *p = (Uint32 *) dst; + if (ch > 0x7FFFFFFF) { + ch = UNKNOWN_UNICODE; + } + if (dstlen < 4) { + return SDL_ICONV_E2BIG; + } + *p = ch; + dst += 4; + dstlen -= 4; + } + break; + } - /* Update state */ - *inbuf = src; - *inbytesleft = srclen; - *outbuf = dst; - *outbytesleft = dstlen; - ++total; - } - return total; + /* Update state */ + *inbuf = src; + *inbytesleft = srclen; + *outbuf = dst; + *outbytesleft = dstlen; + ++total; + } + return total; } -int SDL_iconv_close(SDL_iconv_t cd) +int +SDL_iconv_close (SDL_iconv_t cd) { - if ( cd && cd != (SDL_iconv_t)-1 ) { - SDL_free(cd); - } - return 0; + if (cd && cd != (SDL_iconv_t) - 1) { + SDL_free (cd); + } + return 0; } #endif /* !HAVE_ICONV */ -char *SDL_iconv_string(const char *tocode, const char *fromcode, char *inbuf, size_t inbytesleft) +char * +SDL_iconv_string (const char *tocode, const char *fromcode, char *inbuf, + size_t inbytesleft) { - SDL_iconv_t cd; - char *string; - size_t stringsize; - char *outbuf; - size_t outbytesleft; - size_t retCode = 0; + SDL_iconv_t cd; + char *string; + size_t stringsize; + char *outbuf; + size_t outbytesleft; + size_t retCode = 0; - cd = SDL_iconv_open(tocode, fromcode); - if ( cd == (SDL_iconv_t)-1 ) { - return NULL; - } + cd = SDL_iconv_open (tocode, fromcode); + if (cd == (SDL_iconv_t) - 1) { + return NULL; + } - stringsize = inbytesleft > 4 ? inbytesleft : 4; - string = SDL_malloc(stringsize); - if ( !string ) { - SDL_iconv_close(cd); - return NULL; - } - outbuf = string; - outbytesleft = stringsize; - SDL_memset(outbuf, 0, 4); + stringsize = inbytesleft > 4 ? inbytesleft : 4; + string = SDL_malloc (stringsize); + if (!string) { + SDL_iconv_close (cd); + return NULL; + } + outbuf = string; + outbytesleft = stringsize; + SDL_memset (outbuf, 0, 4); - while ( inbytesleft > 0 ) { - retCode = SDL_iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft); - switch (retCode) { - case SDL_ICONV_E2BIG: - { - char *oldstring = string; - stringsize *= 2; - string = SDL_realloc(string, stringsize); - if ( !string ) { - SDL_iconv_close(cd); - return NULL; - } - outbuf = string + (outbuf - oldstring); - outbytesleft = stringsize - (outbuf - string); - SDL_memset(outbuf, 0, 4); - } - break; - case SDL_ICONV_EILSEQ: - /* Try skipping some input data - not perfect, but... */ - ++inbuf; - --inbytesleft; - break; - case SDL_ICONV_EINVAL: - case SDL_ICONV_ERROR: - /* We can't continue... */ - inbytesleft = 0; - break; - } - } - SDL_iconv_close(cd); + while (inbytesleft > 0) { + retCode = + SDL_iconv (cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft); + switch (retCode) { + case SDL_ICONV_E2BIG: + { + char *oldstring = string; + stringsize *= 2; + string = SDL_realloc (string, stringsize); + if (!string) { + SDL_iconv_close (cd); + return NULL; + } + outbuf = string + (outbuf - oldstring); + outbytesleft = stringsize - (outbuf - string); + SDL_memset (outbuf, 0, 4); + } + break; + case SDL_ICONV_EILSEQ: + /* Try skipping some input data - not perfect, but... */ + ++inbuf; + --inbytesleft; + break; + case SDL_ICONV_EINVAL: + case SDL_ICONV_ERROR: + /* We can't continue... */ + inbytesleft = 0; + break; + } + } + SDL_iconv_close (cd); - return string; + return string; } + +/* vi: set ts=4 sw=4 expandtab: */