misc/libphysfs/physfs_unicode.c
author Anton Malmygin <antonc27@mail.ru>
Fri, 14 Jul 2017 14:46:30 +0200
changeset 12442 8b80f3377195
parent 12218 bb5522e88ab2
permissions -rw-r--r--
Merge pull request #48 from LocutusOfBorg/trusty Move to trusty travis ci environment
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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/*
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 * From rfc3629, the UTF-8 spec:
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bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
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 *  https://www.ietf.org/rfc/rfc3629.txt
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 *
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 *   Char. number range  |        UTF-8 octet sequence
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 *      (hexadecimal)    |              (binary)
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 *   --------------------+---------------------------------------------
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 *   0000 0000-0000 007F | 0xxxxxxx
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 *   0000 0080-0000 07FF | 110xxxxx 10xxxxxx
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 *   0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
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 *   0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
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 */
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/*
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 * This may not be the best value, but it's one that isn't represented
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 *  in Unicode (0x10FFFF is the largest codepoint value). We return this
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 *  value from utf8codepoint() if there's bogus bits in the
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 *  stream. utf8codepoint() will turn this value into something
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 *  reasonable (like a question mark), for text that wants to try to recover,
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 *  whereas utf8valid() will use the value to determine if a string has bad
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 *  bits.
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 */
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#define UNICODE_BOGUS_CHAR_VALUE 0xFFFFFFFF
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/*
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 * This is the codepoint we currently return when there was bogus bits in a
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 *  UTF-8 string. May not fly in Asian locales?
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 */
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#define UNICODE_BOGUS_CHAR_CODEPOINT '?'
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static PHYSFS_uint32 utf8codepoint(const char **_str)
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{
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    const char *str = *_str;
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    PHYSFS_uint32 retval = 0;
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    PHYSFS_uint32 octet = (PHYSFS_uint32) ((PHYSFS_uint8) *str);
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    PHYSFS_uint32 octet2, octet3, octet4;
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    if (octet == 0)  /* null terminator, end of string. */
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        return 0;
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    else if (octet < 128)  /* one octet char: 0 to 127 */
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    {
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        (*_str)++;  /* skip to next possible start of codepoint. */
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        return octet;
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    } /* else if */
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    else if ((octet > 127) && (octet < 192))  /* bad (starts with 10xxxxxx). */
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    {
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        /*
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         * Apparently each of these is supposed to be flagged as a bogus
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         *  char, instead of just resyncing to the next valid codepoint.
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         */
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        (*_str)++;  /* skip to next possible start of codepoint. */
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        return UNICODE_BOGUS_CHAR_VALUE;
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    } /* else if */
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    else if (octet < 224)  /* two octets */
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    {
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        (*_str)++;  /* advance at least one byte in case of an error */
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        octet -= (128+64);
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        octet2 = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet2 & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        *_str += 1;  /* skip to next possible start of codepoint. */
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        retval = ((octet << 6) | (octet2 - 128));
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        if ((retval >= 0x80) && (retval <= 0x7FF))
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            return retval;
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    } /* else if */
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    else if (octet < 240)  /* three octets */
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    {
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        (*_str)++;  /* advance at least one byte in case of an error */
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        octet -= (128+64+32);
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        octet2 = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet2 & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        octet3 = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet3 & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        *_str += 2;  /* skip to next possible start of codepoint. */
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        retval = ( ((octet << 12)) | ((octet2-128) << 6) | ((octet3-128)) );
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        /* There are seven "UTF-16 surrogates" that are illegal in UTF-8. */
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        switch (retval)
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        {
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            case 0xD800:
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            case 0xDB7F:
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            case 0xDB80:
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            case 0xDBFF:
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            case 0xDC00:
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            case 0xDF80:
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            case 0xDFFF:
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                return UNICODE_BOGUS_CHAR_VALUE;
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        } /* switch */
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        /* 0xFFFE and 0xFFFF are illegal, too, so we check them at the edge. */
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        if ((retval >= 0x800) && (retval <= 0xFFFD))
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            return retval;
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    } /* else if */
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    else if (octet < 248)  /* four octets */
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    {
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        (*_str)++;  /* advance at least one byte in case of an error */
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        octet -= (128+64+32+16);
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        octet2 = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet2 & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        octet3 = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet3 & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        octet4 = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet4 & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        *_str += 3;  /* skip to next possible start of codepoint. */
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        retval = ( ((octet << 18)) | ((octet2 - 128) << 12) |
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                   ((octet3 - 128) << 6) | ((octet4 - 128)) );
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        if ((retval >= 0x10000) && (retval <= 0x10FFFF))
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            return retval;
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    } /* else if */
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    /*
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     * Five and six octet sequences became illegal in rfc3629.
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     *  We throw the codepoint away, but parse them to make sure we move
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     *  ahead the right number of bytes and don't overflow the buffer.
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     */
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    else if (octet < 252)  /* five octets */
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    {
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        (*_str)++;  /* advance at least one byte in case of an error */
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        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        *_str += 4;  /* skip to next possible start of codepoint. */
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        return UNICODE_BOGUS_CHAR_VALUE;
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    } /* else if */
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    else  /* six octets */
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    {
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        (*_str)++;  /* advance at least one byte in case of an error */
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        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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            return UNICODE_BOGUS_CHAR_VALUE;
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parents:
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   176
        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
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parents:
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   177
        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
13e2037ebc79 Try using PhysicsFS.
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parents:
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   178
            return UNICODE_BOGUS_CHAR_VALUE;
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   179
13e2037ebc79 Try using PhysicsFS.
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parents:
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   180
        octet = (PHYSFS_uint32) ((PHYSFS_uint8) *(++str));
13e2037ebc79 Try using PhysicsFS.
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parents:
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   181
        if ((octet & (128+64)) != 128)  /* Format isn't 10xxxxxx? */
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parents:
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   182
            return UNICODE_BOGUS_CHAR_VALUE;
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   183
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   184
        *_str += 6;  /* skip to next possible start of codepoint. */
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   185
        return UNICODE_BOGUS_CHAR_VALUE;
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   186
    } /* else if */
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   187
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parents:
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   188
    return UNICODE_BOGUS_CHAR_VALUE;
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   189
} /* utf8codepoint */
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   190
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   191
13e2037ebc79 Try using PhysicsFS.
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parents:
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   192
void PHYSFS_utf8ToUcs4(const char *src, PHYSFS_uint32 *dst, PHYSFS_uint64 len)
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parents:
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   193
{
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parents:
diff changeset
   194
    len -= sizeof (PHYSFS_uint32);   /* save room for null char. */
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   195
    while (len >= sizeof (PHYSFS_uint32))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   196
    {
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   197
        PHYSFS_uint32 cp = utf8codepoint(&src);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   198
        if (cp == 0)
13e2037ebc79 Try using PhysicsFS.
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parents:
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   199
            break;
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parents:
diff changeset
   200
        else if (cp == UNICODE_BOGUS_CHAR_VALUE)
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   201
            cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
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parents:
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   202
        *(dst++) = cp;
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   203
        len -= sizeof (PHYSFS_uint32);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   204
    } /* while */
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parents:
diff changeset
   205
13e2037ebc79 Try using PhysicsFS.
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parents:
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   206
    *dst = 0;
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parents:
diff changeset
   207
} /* PHYSFS_utf8ToUcs4 */
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   208
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   209
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   210
void PHYSFS_utf8ToUcs2(const char *src, PHYSFS_uint16 *dst, PHYSFS_uint64 len)
13e2037ebc79 Try using PhysicsFS.
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parents:
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   211
{
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parents:
diff changeset
   212
    len -= sizeof (PHYSFS_uint16);   /* save room for null char. */
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   213
    while (len >= sizeof (PHYSFS_uint16))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   214
    {
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   215
        PHYSFS_uint32 cp = utf8codepoint(&src);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   216
        if (cp == 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   217
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   218
        else if (cp == UNICODE_BOGUS_CHAR_VALUE)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   219
            cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   220
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   221
        if (cp > 0xFFFF)  /* UTF-16 surrogates (bogus chars in UCS-2) */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   222
            cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   223
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   224
        *(dst++) = cp;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   225
        len -= sizeof (PHYSFS_uint16);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   226
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   227
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   228
    *dst = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   229
} /* PHYSFS_utf8ToUcs2 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   230
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   231
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   232
void PHYSFS_utf8ToUtf16(const char *src, PHYSFS_uint16 *dst, PHYSFS_uint64 len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   233
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   234
    len -= sizeof (PHYSFS_uint16);   /* save room for null char. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   235
    while (len >= sizeof (PHYSFS_uint16))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   236
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   237
        PHYSFS_uint32 cp = utf8codepoint(&src);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   238
        if (cp == 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   239
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   240
        else if (cp == UNICODE_BOGUS_CHAR_VALUE)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   241
            cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   242
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   243
        if (cp > 0xFFFF)  /* encode as surrogate pair */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   244
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   245
            if (len < (sizeof (PHYSFS_uint16) * 2))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   246
                break;  /* not enough room for the pair, stop now. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   247
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   248
            cp -= 0x10000;  /* Make this a 20-bit value */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   249
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   250
            *(dst++) = 0xD800 + ((cp >> 10) & 0x3FF);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   251
            len -= sizeof (PHYSFS_uint16);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   252
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   253
            cp = 0xDC00 + (cp & 0x3FF);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   254
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   255
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   256
        *(dst++) = cp;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   257
        len -= sizeof (PHYSFS_uint16);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   258
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   259
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   260
    *dst = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   261
} /* PHYSFS_utf8ToUtf16 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   262
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   263
static void utf8fromcodepoint(PHYSFS_uint32 cp, char **_dst, PHYSFS_uint64 *_len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   264
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   265
    char *dst = *_dst;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   266
    PHYSFS_uint64 len = *_len;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   267
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   268
    if (len == 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   269
        return;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   270
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   271
    if (cp > 0x10FFFF)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   272
        cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   273
    else if ((cp == 0xFFFE) || (cp == 0xFFFF))  /* illegal values. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   274
        cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   275
    else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   276
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   277
        /* There are seven "UTF-16 surrogates" that are illegal in UTF-8. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   278
        switch (cp)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   279
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   280
            case 0xD800:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   281
            case 0xDB7F:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   282
            case 0xDB80:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   283
            case 0xDBFF:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   284
            case 0xDC00:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   285
            case 0xDF80:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   286
            case 0xDFFF:
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   287
                cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   288
        } /* switch */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   289
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   290
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   291
    /* Do the encoding... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   292
    if (cp < 0x80)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   293
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   294
        *(dst++) = (char) cp;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   295
        len--;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   296
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   297
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   298
    else if (cp < 0x800)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   299
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   300
        if (len < 2)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   301
            len = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   302
        else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   303
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   304
            *(dst++) = (char) ((cp >> 6) | 128 | 64);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   305
            *(dst++) = (char) (cp & 0x3F) | 128;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   306
            len -= 2;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   307
        } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   308
    } /* else if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   309
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   310
    else if (cp < 0x10000)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   311
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   312
        if (len < 3)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   313
            len = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   314
        else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   315
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   316
            *(dst++) = (char) ((cp >> 12) | 128 | 64 | 32);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   317
            *(dst++) = (char) ((cp >> 6) & 0x3F) | 128;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   318
            *(dst++) = (char) (cp & 0x3F) | 128;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   319
            len -= 3;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   320
        } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   321
    } /* else if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   322
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   323
    else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   324
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   325
        if (len < 4)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   326
            len = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   327
        else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   328
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   329
            *(dst++) = (char) ((cp >> 18) | 128 | 64 | 32 | 16);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   330
            *(dst++) = (char) ((cp >> 12) & 0x3F) | 128;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   331
            *(dst++) = (char) ((cp >> 6) & 0x3F) | 128;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   332
            *(dst++) = (char) (cp & 0x3F) | 128;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   333
            len -= 4;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   334
        } /* else if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   335
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   336
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   337
    *_dst = dst;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   338
    *_len = len;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   339
} /* utf8fromcodepoint */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   340
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   341
#define UTF8FROMTYPE(typ, src, dst, len) \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   342
    if (len == 0) return; \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   343
    len--;  \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   344
    while (len) \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   345
    { \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   346
        const PHYSFS_uint32 cp = (PHYSFS_uint32) ((typ) (*(src++))); \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   347
        if (cp == 0) break; \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   348
        utf8fromcodepoint(cp, &dst, &len); \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   349
    } \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   350
    *dst = '\0'; \
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   351
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   352
void PHYSFS_utf8FromUcs4(const PHYSFS_uint32 *src, char *dst, PHYSFS_uint64 len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   353
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   354
    UTF8FROMTYPE(PHYSFS_uint32, src, dst, len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   355
} /* PHYSFS_utf8FromUcs4 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   356
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   357
void PHYSFS_utf8FromUcs2(const PHYSFS_uint16 *src, char *dst, PHYSFS_uint64 len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   358
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   359
    UTF8FROMTYPE(PHYSFS_uint64, src, dst, len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   360
} /* PHYSFS_utf8FromUcs2 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   361
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   362
/* latin1 maps to unicode codepoints directly, we just utf-8 encode it. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   363
void PHYSFS_utf8FromLatin1(const char *src, char *dst, PHYSFS_uint64 len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   364
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   365
    UTF8FROMTYPE(PHYSFS_uint8, src, dst, len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   366
} /* PHYSFS_utf8FromLatin1 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   367
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   368
#undef UTF8FROMTYPE
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   369
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   370
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   371
void PHYSFS_utf8FromUtf16(const PHYSFS_uint16 *src, char *dst, PHYSFS_uint64 len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   372
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   373
    if (len == 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   374
        return;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   375
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   376
    len--;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   377
    while (len)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   378
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   379
        PHYSFS_uint32 cp = (PHYSFS_uint32) *(src++);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   380
        if (cp == 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   381
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   382
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   383
        /* Orphaned second half of surrogate pair? */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   384
        if ((cp >= 0xDC00) && (cp <= 0xDFFF))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   385
            cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   386
        else if ((cp >= 0xD800) && (cp <= 0xDBFF))  /* start surrogate pair! */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   387
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   388
            const PHYSFS_uint32 pair = (PHYSFS_uint32) *src;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   389
            if ((pair < 0xDC00) || (pair > 0xDFFF))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   390
                cp = UNICODE_BOGUS_CHAR_CODEPOINT;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   391
            else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   392
            {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   393
                src++;  /* eat the other surrogate. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   394
                cp = (((cp - 0xD800) << 10) | (pair - 0xDC00));
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   395
            } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   396
        } /* else if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   397
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   398
        utf8fromcodepoint(cp, &dst, &len);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   399
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   400
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   401
    *dst = '\0';
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   402
} /* PHYSFS_utf8FromUtf16 */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   403
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   404
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   405
typedef struct CaseFoldMapping
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   406
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   407
    PHYSFS_uint32 from;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   408
    PHYSFS_uint32 to0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   409
    PHYSFS_uint32 to1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   410
    PHYSFS_uint32 to2;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   411
} CaseFoldMapping;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   412
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   413
typedef struct CaseFoldHashBucket
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   414
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   415
    const PHYSFS_uint8 count;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   416
    const CaseFoldMapping *list;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   417
} CaseFoldHashBucket;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   418
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   419
#include "physfs_casefolding.h"
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   420
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   421
static void locate_case_fold_mapping(const PHYSFS_uint32 from,
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   422
                                     PHYSFS_uint32 *to)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   423
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   424
    PHYSFS_uint32 i;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   425
    const PHYSFS_uint8 hashed = ((from ^ (from >> 8)) & 0xFF);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   426
    const CaseFoldHashBucket *bucket = &case_fold_hash[hashed];
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   427
    const CaseFoldMapping *mapping = bucket->list;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   428
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   429
    for (i = 0; i < bucket->count; i++, mapping++)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   430
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   431
        if (mapping->from == from)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   432
        {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   433
            to[0] = mapping->to0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   434
            to[1] = mapping->to1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   435
            to[2] = mapping->to2;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   436
            return;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   437
        } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   438
    } /* for */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   439
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   440
    /* Not found...there's no remapping for this codepoint. */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   441
    to[0] = from;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   442
    to[1] = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   443
    to[2] = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   444
} /* locate_case_fold_mapping */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   445
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   446
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   447
static int utf8codepointcmp(const PHYSFS_uint32 cp1, const PHYSFS_uint32 cp2)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   448
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   449
    PHYSFS_uint32 folded1[3], folded2[3];
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   450
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   451
    if (cp1 == cp2)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   452
        return 0;  /* obviously matches. */
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   453
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   454
    locate_case_fold_mapping(cp1, folded1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   455
    locate_case_fold_mapping(cp2, folded2);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   456
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   457
    if (folded1[0] < folded2[0])
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   458
        return -1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   459
    else if (folded1[0] > folded2[0])
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   460
        return 1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   461
    else if (folded1[1] < folded2[1])
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   462
        return -1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   463
    else if (folded1[1] > folded2[1])
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   464
        return 1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   465
    else if (folded1[2] < folded2[2])
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   466
        return -1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   467
    else if (folded1[2] > folded2[2])
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   468
        return 1;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   469
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   470
    return 0;  /* complete match. */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   471
} /* utf8codepointcmp */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   472
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   473
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   474
int __PHYSFS_utf8stricmp(const char *str1, const char *str2)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   475
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   476
    while (1)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   477
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   478
        const PHYSFS_uint32 cp1 = utf8codepoint(&str1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   479
        const PHYSFS_uint32 cp2 = utf8codepoint(&str2);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   480
        const int rc = utf8codepointcmp(cp1, cp2);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   481
        if (rc != 0)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   482
            return rc;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   483
        else if (cp1 == 0)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   484
            break;  /* complete match. */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   485
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   486
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   487
    return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   488
} /* __PHYSFS_utf8stricmp */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   489
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   490
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   491
int __PHYSFS_utf8strnicmp(const char *str1, const char *str2, PHYSFS_uint32 n)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   492
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   493
    while (n > 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   494
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   495
        const PHYSFS_uint32 cp1 = utf8codepoint(&str1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   496
        const PHYSFS_uint32 cp2 = utf8codepoint(&str2);
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   497
        const int rc = utf8codepointcmp(cp1, cp2);
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   498
        if (rc != 0)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   499
            return rc;
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   500
        else if (cp1 == 0)
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   501
            return 0;
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   502
        n--;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   503
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   504
12218
bb5522e88ab2 bulk copy of latest physfs to our misc/libphysfs since this seems to fix an off-by-1 error reliably hit in readln read of 1 byte probably introduced in the addition of the buffered read. Whether this is excessive or whether libphysfs should even be maintained by us is another matter. But at least we shouldn't crash
nemo
parents: 8524
diff changeset
   505
    return 0;  /* matched to n chars. */
7768
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   506
} /* __PHYSFS_utf8strnicmp */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   507
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   508
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   509
int __PHYSFS_stricmpASCII(const char *str1, const char *str2)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   510
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   511
    while (1)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   512
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   513
        const char ch1 = *(str1++);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   514
        const char ch2 = *(str2++);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   515
        const char cp1 = ((ch1 >= 'A') && (ch1 <= 'Z')) ? (ch1+32) : ch1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   516
        const char cp2 = ((ch2 >= 'A') && (ch2 <= 'Z')) ? (ch2+32) : ch2;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   517
        if (cp1 < cp2)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   518
            return -1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   519
        else if (cp1 > cp2)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   520
            return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   521
        else if (cp1 == 0)  /* they're both null chars? */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   522
            break;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   523
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   524
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   525
    return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   526
} /* __PHYSFS_stricmpASCII */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   527
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   528
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   529
int __PHYSFS_strnicmpASCII(const char *str1, const char *str2, PHYSFS_uint32 n)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   530
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   531
    while (n-- > 0)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   532
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   533
        const char ch1 = *(str1++);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   534
        const char ch2 = *(str2++);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   535
        const char cp1 = ((ch1 >= 'A') && (ch1 <= 'Z')) ? (ch1+32) : ch1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   536
        const char cp2 = ((ch2 >= 'A') && (ch2 <= 'Z')) ? (ch2+32) : ch2;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   537
        if (cp1 < cp2)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   538
            return -1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   539
        else if (cp1 > cp2)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   540
            return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   541
        else if (cp1 == 0)  /* they're both null chars? */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   542
            return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   543
    } /* while */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   544
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   545
    return 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   546
} /* __PHYSFS_strnicmpASCII */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   547
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   548
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   549
/* end of physfs_unicode.c ... */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   550