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-rw-r--r--fontconfig/src/fcstr.c2396
1 files changed, 1198 insertions, 1198 deletions
diff --git a/fontconfig/src/fcstr.c b/fontconfig/src/fcstr.c
index ea7c376c2..6aee5d288 100644
--- a/fontconfig/src/fcstr.c
+++ b/fontconfig/src/fcstr.c
@@ -1,1198 +1,1198 @@
-/*
- * fontconfig/src/fcstr.c
- *
- * Copyright © 2000 Keith Packard
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. Keith Packard makes no
- * representations about the suitability of this software for any purpose. It
- * is provided "as is" without express or implied warranty.
- *
- * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "fcint.h"
-#include <stdlib.h>
-#include <ctype.h>
-#include <string.h>
-#ifdef _WIN32
-#include <windows.h>
-#endif
-
-FcChar8 *
-FcStrCopy (const FcChar8 *s)
-{
- int len;
- FcChar8 *r;
-
- if (!s)
- return 0;
- len = strlen ((char *) s) + 1;
- r = (FcChar8 *) malloc (len);
- if (!r)
- return 0;
- FcMemAlloc (FC_MEM_STRING, len);
- memcpy (r, s, len);
- return r;
-}
-
-FcChar8 *
-FcStrPlus (const FcChar8 *s1, const FcChar8 *s2)
-{
- int l = strlen ((char *)s1) + strlen ((char *) s2) + 1;
- FcChar8 *s = malloc (l);
-
- if (!s)
- return 0;
- FcMemAlloc (FC_MEM_STRING, l);
- strcpy ((char *) s, (char *) s1);
- strcat ((char *) s, (char *) s2);
- return s;
-}
-
-void
-FcStrFree (FcChar8 *s)
-{
- FcMemFree (FC_MEM_STRING, strlen ((char *) s) + 1);
- free (s);
-}
-
-
-#include "../fc-case/fccase.h"
-
-#define FcCaseFoldUpperCount(cf) \
- ((cf)->method == FC_CASE_FOLD_FULL ? 1 : (cf)->count)
-
-#define FC_STR_CANON_BUF_LEN 1024
-
-typedef struct _FcCaseWalker {
- const FcChar8 *read;
- const FcChar8 *src;
- FcChar8 utf8[FC_MAX_CASE_FOLD_CHARS + 1];
-} FcCaseWalker;
-
-static void
-FcStrCaseWalkerInit (const FcChar8 *src, FcCaseWalker *w)
-{
- w->src = src;
- w->read = 0;
-}
-
-static FcChar8
-FcStrCaseWalkerLong (FcCaseWalker *w, FcChar8 r)
-{
- FcChar32 ucs4;
- int slen;
- int len = strlen((char*)w->src);
-
- slen = FcUtf8ToUcs4 (w->src - 1, &ucs4, len + 1);
- if (slen <= 0)
- return r;
- if (FC_MIN_FOLD_CHAR <= ucs4 && ucs4 <= FC_MAX_FOLD_CHAR)
- {
- int min = 0;
- int max = FC_NUM_CASE_FOLD;
-
- while (min <= max)
- {
- int mid = (min + max) >> 1;
- FcChar32 low = fcCaseFold[mid].upper;
- FcChar32 high = low + FcCaseFoldUpperCount (&fcCaseFold[mid]);
-
- if (high <= ucs4)
- min = mid + 1;
- else if (ucs4 < low)
- max = mid - 1;
- else
- {
- const FcCaseFold *fold = &fcCaseFold[mid];
- int dlen;
-
- switch (fold->method) {
- case FC_CASE_FOLD_EVEN_ODD:
- if ((ucs4 & 1) != (fold->upper & 1))
- return r;
- /* fall through ... */
- default:
- dlen = FcUcs4ToUtf8 (ucs4 + fold->offset, w->utf8);
- break;
- case FC_CASE_FOLD_FULL:
- dlen = fold->count;
- memcpy (w->utf8, fcCaseFoldChars + fold->offset, dlen);
- break;
- }
-
- /* consume rest of src utf-8 bytes */
- w->src += slen - 1;
-
- /* read from temp buffer */
- w->utf8[dlen] = '\0';
- w->read = w->utf8;
- return *w->read++;
- }
- }
- }
- return r;
-}
-
-static FcChar8
-FcStrCaseWalkerNext (FcCaseWalker *w)
-{
- FcChar8 r;
-
- if (w->read)
- {
- if ((r = *w->read++))
- return r;
- w->read = 0;
- }
- r = *w->src++;
-
- if ((r & 0xc0) == 0xc0)
- return FcStrCaseWalkerLong (w, r);
- if ('A' <= r && r <= 'Z')
- r = r - 'A' + 'a';
- return r;
-}
-
-static FcChar8
-FcStrCaseWalkerNextIgnoreBlanks (FcCaseWalker *w)
-{
- FcChar8 r;
-
- if (w->read)
- {
- if ((r = *w->read++))
- return r;
- w->read = 0;
- }
- do
- {
- r = *w->src++;
- } while (r == ' ');
-
- if ((r & 0xc0) == 0xc0)
- return FcStrCaseWalkerLong (w, r);
- if ('A' <= r && r <= 'Z')
- r = r - 'A' + 'a';
- return r;
-}
-
-FcChar8 *
-FcStrDowncase (const FcChar8 *s)
-{
- FcCaseWalker w;
- int len = 0;
- FcChar8 *dst, *d;
-
- FcStrCaseWalkerInit (s, &w);
- while (FcStrCaseWalkerNext (&w))
- len++;
- d = dst = malloc (len + 1);
- if (!d)
- return 0;
- FcMemAlloc (FC_MEM_STRING, len + 1);
- FcStrCaseWalkerInit (s, &w);
- while ((*d++ = FcStrCaseWalkerNext (&w)));
- return dst;
-}
-
-int
-FcStrCmpIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
-{
- FcCaseWalker w1, w2;
- FcChar8 c1, c2;
-
- if (s1 == s2) return 0;
-
- FcStrCaseWalkerInit (s1, &w1);
- FcStrCaseWalkerInit (s2, &w2);
-
- for (;;)
- {
- c1 = FcStrCaseWalkerNext (&w1);
- c2 = FcStrCaseWalkerNext (&w2);
- if (!c1 || (c1 != c2))
- break;
- }
- return (int) c1 - (int) c2;
-}
-
-int
-FcStrCmpIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
-{
- FcCaseWalker w1, w2;
- FcChar8 c1, c2;
-
- if (s1 == s2) return 0;
-
- FcStrCaseWalkerInit (s1, &w1);
- FcStrCaseWalkerInit (s2, &w2);
-
- for (;;)
- {
- c1 = FcStrCaseWalkerNextIgnoreBlanks (&w1);
- c2 = FcStrCaseWalkerNextIgnoreBlanks (&w2);
- if (!c1 || (c1 != c2))
- break;
- }
- return (int) c1 - (int) c2;
-}
-
-int
-FcStrCmp (const FcChar8 *s1, const FcChar8 *s2)
-{
- FcChar8 c1, c2;
-
- if (s1 == s2)
- return 0;
- for (;;)
- {
- c1 = *s1++;
- c2 = *s2++;
- if (!c1 || c1 != c2)
- break;
- }
- return (int) c1 - (int) c2;
-}
-
-/*
- * Return a hash value for a string
- */
-
-FcChar32
-FcStrHashIgnoreCase (const FcChar8 *s)
-{
- FcChar32 h = 0;
- FcCaseWalker w;
- FcChar8 c;
-
- FcStrCaseWalkerInit (s, &w);
- while ((c = FcStrCaseWalkerNext (&w)))
- h = ((h << 3) ^ (h >> 3)) ^ c;
- return h;
-}
-
-/*
- * Is the head of s1 equal to s2?
- */
-
-static FcBool
-FcStrIsAtIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
-{
- FcCaseWalker w1, w2;
- FcChar8 c1, c2;
-
- FcStrCaseWalkerInit (s1, &w1);
- FcStrCaseWalkerInit (s2, &w2);
-
- for (;;)
- {
- c1 = FcStrCaseWalkerNextIgnoreBlanks (&w1);
- c2 = FcStrCaseWalkerNextIgnoreBlanks (&w2);
- if (!c1 || (c1 != c2))
- break;
- }
- return c1 == c2 || !c2;
-}
-
-/*
- * Does s1 contain an instance of s2 (ignoring blanks and case)?
- */
-
-const FcChar8 *
-FcStrContainsIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
-{
- while (*s1)
- {
- if (FcStrIsAtIgnoreBlanksAndCase (s1, s2))
- return s1;
- s1++;
- }
- return 0;
-}
-
-static FcBool
-FcCharIsPunct (const FcChar8 c)
-{
- if (c < '0')
- return FcTrue;
- if (c <= '9')
- return FcFalse;
- if (c < 'A')
- return FcTrue;
- if (c <= 'Z')
- return FcFalse;
- if (c < 'a')
- return FcTrue;
- if (c <= 'z')
- return FcFalse;
- if (c <= '~')
- return FcTrue;
- return FcFalse;
-}
-
-/*
- * Is the head of s1 equal to s2?
- */
-
-static FcBool
-FcStrIsAtIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
-{
- FcCaseWalker w1, w2;
- FcChar8 c1, c2;
-
- FcStrCaseWalkerInit (s1, &w1);
- FcStrCaseWalkerInit (s2, &w2);
-
- for (;;)
- {
- c1 = FcStrCaseWalkerNext (&w1);
- c2 = FcStrCaseWalkerNext (&w2);
- if (!c1 || (c1 != c2))
- break;
- }
- return c1 == c2 || !c2;
-}
-
-/*
- * Does s1 contain an instance of s2 (ignoring blanks and case)?
- */
-
-const FcChar8 *
-FcStrContainsIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
-{
- while (*s1)
- {
- if (FcStrIsAtIgnoreCase (s1, s2))
- return s1;
- s1++;
- }
- return 0;
-}
-
-/*
- * Does s1 contain an instance of s2 on a word boundary (ignoring case)?
- */
-
-const FcChar8 *
-FcStrContainsWord (const FcChar8 *s1, const FcChar8 *s2)
-{
- FcBool wordStart = FcTrue;
- int s1len = strlen ((char *) s1);
- int s2len = strlen ((char *) s2);
-
- while (s1len >= s2len)
- {
- if (wordStart &&
- FcStrIsAtIgnoreCase (s1, s2) &&
- (s1len == s2len || FcCharIsPunct (s1[s2len])))
- {
- return s1;
- }
- wordStart = FcFalse;
- if (FcCharIsPunct (*s1))
- wordStart = FcTrue;
- s1++;
- s1len--;
- }
- return 0;
-}
-
-const FcChar8 *
-FcStrStrIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
-{
- FcCaseWalker w1, w2;
- FcChar8 c1, c2;
- const FcChar8 *cur;
-
- if (!s1 || !s2)
- return 0;
-
- if (s1 == s2)
- return s1;
-
- FcStrCaseWalkerInit (s1, &w1);
- FcStrCaseWalkerInit (s2, &w2);
-
- c2 = FcStrCaseWalkerNext (&w2);
-
- for (;;)
- {
- cur = w1.src;
- c1 = FcStrCaseWalkerNext (&w1);
- if (!c1)
- break;
- if (c1 == c2)
- {
- FcCaseWalker w1t = w1;
- FcCaseWalker w2t = w2;
- FcChar8 c1t, c2t;
-
- for (;;)
- {
- c1t = FcStrCaseWalkerNext (&w1t);
- c2t = FcStrCaseWalkerNext (&w2t);
-
- if (!c2t)
- return cur;
- if (c2t != c1t)
- break;
- }
- }
- }
- return 0;
-}
-
-const FcChar8 *
-FcStrStr (const FcChar8 *s1, const FcChar8 *s2)
-{
- FcChar8 c1, c2;
- const FcChar8 * p = s1;
- const FcChar8 * b = s2;
-
- if (!s1 || !s2)
- return 0;
-
- if (s1 == s2)
- return s1;
-
-again:
- c2 = *s2++;
-
- if (!c2)
- return 0;
-
- for (;;)
- {
- p = s1;
- c1 = *s1++;
- if (!c1 || c1 == c2)
- break;
- }
-
- if (c1 != c2)
- return 0;
-
- for (;;)
- {
- c1 = *s1;
- c2 = *s2;
- if (c1 && c2 && c1 != c2)
- {
- s1 = p + 1;
- s2 = b;
- goto again;
- }
- if (!c2)
- return p;
- if (!c1)
- return 0;
- ++ s1;
- ++ s2;
- }
- /* never reached. */
-}
-
-int
-FcUtf8ToUcs4 (const FcChar8 *src_orig,
- FcChar32 *dst,
- int len)
-{
- const FcChar8 *src = src_orig;
- FcChar8 s;
- int extra;
- FcChar32 result;
-
- if (len == 0)
- return 0;
-
- s = *src++;
- len--;
-
- if (!(s & 0x80))
- {
- result = s;
- extra = 0;
- }
- else if (!(s & 0x40))
- {
- return -1;
- }
- else if (!(s & 0x20))
- {
- result = s & 0x1f;
- extra = 1;
- }
- else if (!(s & 0x10))
- {
- result = s & 0xf;
- extra = 2;
- }
- else if (!(s & 0x08))
- {
- result = s & 0x07;
- extra = 3;
- }
- else if (!(s & 0x04))
- {
- result = s & 0x03;
- extra = 4;
- }
- else if ( ! (s & 0x02))
- {
- result = s & 0x01;
- extra = 5;
- }
- else
- {
- return -1;
- }
- if (extra > len)
- return -1;
-
- while (extra--)
- {
- result <<= 6;
- s = *src++;
-
- if ((s & 0xc0) != 0x80)
- return -1;
-
- result |= s & 0x3f;
- }
- *dst = result;
- return src - src_orig;
-}
-
-FcBool
-FcUtf8Len (const FcChar8 *string,
- int len,
- int *nchar,
- int *wchar)
-{
- int n;
- int clen;
- FcChar32 c;
- FcChar32 max;
-
- n = 0;
- max = 0;
- while (len)
- {
- clen = FcUtf8ToUcs4 (string, &c, len);
- if (clen <= 0) /* malformed UTF8 string */
- return FcFalse;
- if (c > max)
- max = c;
- string += clen;
- len -= clen;
- n++;
- }
- *nchar = n;
- if (max >= 0x10000)
- *wchar = 4;
- else if (max > 0x100)
- *wchar = 2;
- else
- *wchar = 1;
- return FcTrue;
-}
-
-int
-FcUcs4ToUtf8 (FcChar32 ucs4,
- FcChar8 dest[FC_UTF8_MAX_LEN])
-{
- int bits;
- FcChar8 *d = dest;
-
- if (ucs4 < 0x80) { *d++= ucs4; bits= -6; }
- else if (ucs4 < 0x800) { *d++= ((ucs4 >> 6) & 0x1F) | 0xC0; bits= 0; }
- else if (ucs4 < 0x10000) { *d++= ((ucs4 >> 12) & 0x0F) | 0xE0; bits= 6; }
- else if (ucs4 < 0x200000) { *d++= ((ucs4 >> 18) & 0x07) | 0xF0; bits= 12; }
- else if (ucs4 < 0x4000000) { *d++= ((ucs4 >> 24) & 0x03) | 0xF8; bits= 18; }
- else if (ucs4 < 0x80000000) { *d++= ((ucs4 >> 30) & 0x01) | 0xFC; bits= 24; }
- else return 0;
-
- for ( ; bits >= 0; bits-= 6) {
- *d++= ((ucs4 >> bits) & 0x3F) | 0x80;
- }
- return d - dest;
-}
-
-#define GetUtf16(src,endian) \
- ((FcChar16) ((src)[endian == FcEndianBig ? 0 : 1] << 8) | \
- (FcChar16) ((src)[endian == FcEndianBig ? 1 : 0]))
-
-int
-FcUtf16ToUcs4 (const FcChar8 *src_orig,
- FcEndian endian,
- FcChar32 *dst,
- int len) /* in bytes */
-{
- const FcChar8 *src = src_orig;
- FcChar16 a, b;
- FcChar32 result;
-
- if (len < 2)
- return 0;
-
- a = GetUtf16 (src, endian); src += 2; len -= 2;
-
- /*
- * Check for surrogate
- */
- if ((a & 0xfc00) == 0xd800)
- {
- if (len < 2)
- return 0;
- b = GetUtf16 (src, endian); src += 2; len -= 2;
- /*
- * Check for invalid surrogate sequence
- */
- if ((b & 0xfc00) != 0xdc00)
- return 0;
- result = ((((FcChar32) a & 0x3ff) << 10) |
- ((FcChar32) b & 0x3ff)) + 0x10000;
- }
- else
- result = a;
- *dst = result;
- return src - src_orig;
-}
-
-FcBool
-FcUtf16Len (const FcChar8 *string,
- FcEndian endian,
- int len, /* in bytes */
- int *nchar,
- int *wchar)
-{
- int n;
- int clen;
- FcChar32 c;
- FcChar32 max;
-
- n = 0;
- max = 0;
- while (len)
- {
- clen = FcUtf16ToUcs4 (string, endian, &c, len);
- if (clen <= 0) /* malformed UTF8 string */
- return FcFalse;
- if (c > max)
- max = c;
- string += clen;
- len -= clen;
- n++;
- }
- *nchar = n;
- if (max >= 0x10000)
- *wchar = 4;
- else if (max > 0x100)
- *wchar = 2;
- else
- *wchar = 1;
- return FcTrue;
-}
-
-void
-FcStrBufInit (FcStrBuf *buf, FcChar8 *init, int size)
-{
- if (init)
- {
- buf->buf = init;
- buf->size = size;
- } else
- {
- buf->buf = buf->buf_static;
- buf->size = sizeof (buf->buf_static);
- }
- buf->allocated = FcFalse;
- buf->failed = FcFalse;
- buf->len = 0;
-}
-
-void
-FcStrBufDestroy (FcStrBuf *buf)
-{
- if (buf->allocated)
- {
- FcMemFree (FC_MEM_STRBUF, buf->size);
- free (buf->buf);
- FcStrBufInit (buf, 0, 0);
- }
-}
-
-FcChar8 *
-FcStrBufDone (FcStrBuf *buf)
-{
- FcChar8 *ret;
-
- if (buf->failed)
- ret = NULL;
- else
- ret = malloc (buf->len + 1);
- if (ret)
- {
- FcMemAlloc (FC_MEM_STRING, buf->len + 1);
- memcpy (ret, buf->buf, buf->len);
- ret[buf->len] = '\0';
- }
- FcStrBufDestroy (buf);
- return ret;
-}
-
-FcChar8 *
-FcStrBufDoneStatic (FcStrBuf *buf)
-{
- FcStrBufChar (buf, '\0');
-
- if (buf->failed)
- return NULL;
-
- return buf->buf;
-}
-
-FcBool
-FcStrBufChar (FcStrBuf *buf, FcChar8 c)
-{
- if (buf->len == buf->size)
- {
- FcChar8 *new;
- int size;
-
- if (buf->failed)
- return FcFalse;
-
- if (buf->allocated)
- {
- size = buf->size * 2;
- new = realloc (buf->buf, size);
- }
- else
- {
- size = buf->size + 64;
- new = malloc (size);
- if (new)
- {
- buf->allocated = FcTrue;
- memcpy (new, buf->buf, buf->len);
- }
- }
- if (!new)
- {
- buf->failed = FcTrue;
- return FcFalse;
- }
- if (buf->size)
- FcMemFree (FC_MEM_STRBUF, buf->size);
- FcMemAlloc (FC_MEM_STRBUF, size);
- buf->size = size;
- buf->buf = new;
- }
- buf->buf[buf->len++] = c;
- return FcTrue;
-}
-
-FcBool
-FcStrBufString (FcStrBuf *buf, const FcChar8 *s)
-{
- FcChar8 c;
- while ((c = *s++))
- if (!FcStrBufChar (buf, c))
- return FcFalse;
- return FcTrue;
-}
-
-FcBool
-FcStrBufData (FcStrBuf *buf, const FcChar8 *s, int len)
-{
- while (len-- > 0)
- if (!FcStrBufChar (buf, *s++))
- return FcFalse;
- return FcTrue;
-}
-
-FcBool
-FcStrUsesHome (const FcChar8 *s)
-{
- return *s == '~';
-}
-
-FcChar8 *
-FcStrCopyFilename (const FcChar8 *s)
-{
- FcChar8 *new;
-
- if (*s == '~')
- {
- FcChar8 *home = FcConfigHome ();
- FcChar8 *full;
- int size;
- if (!home)
- return 0;
- size = strlen ((char *) home) + strlen ((char *) s);
- full = (FcChar8 *) malloc (size);
- if (!full)
- return 0;
- strcpy ((char *) full, (char *) home);
- strcat ((char *) full, (char *) s + 1);
- new = FcStrCanonFilename (full);
- free (full);
- }
- else
- new = FcStrCanonFilename (s);
- return new;
-}
-
-FcChar8 *
-FcStrLastSlash (const FcChar8 *path)
-{
- FcChar8 *slash;
-
- slash = (FcChar8 *) strrchr ((const char *) path, '/');
-#ifdef _WIN32
- {
- FcChar8 *backslash;
-
- backslash = (FcChar8 *) strrchr ((const char *) path, '\\');
- if (!slash || (backslash && backslash > slash))
- slash = backslash;
- }
-#endif
-
- return slash;
-}
-
-FcChar8 *
-FcStrDirname (const FcChar8 *file)
-{
- FcChar8 *slash;
- FcChar8 *dir;
-
- slash = FcStrLastSlash (file);
- if (!slash)
- return FcStrCopy ((FcChar8 *) ".");
- dir = malloc ((slash - file) + 1);
- if (!dir)
- return 0;
- FcMemAlloc (FC_MEM_STRING, (slash - file) + 1);
- strncpy ((char *) dir, (const char *) file, slash - file);
- dir[slash - file] = '\0';
- return dir;
-}
-
-FcChar8 *
-FcStrBasename (const FcChar8 *file)
-{
- FcChar8 *slash;
-
- slash = FcStrLastSlash (file);
- if (!slash)
- return FcStrCopy (file);
- return FcStrCopy (slash + 1);
-}
-
-static FcChar8 *
-FcStrCanonAbsoluteFilename (const FcChar8 *s)
-{
- FcChar8 *file;
- FcChar8 *f;
- const FcChar8 *slash;
- int size;
-
- size = strlen ((char *) s) + 1;
- file = malloc (size);
- if (!file)
- return NULL;
- FcMemAlloc (FC_MEM_STRING, size);
- slash = NULL;
- f = file;
- for (;;) {
- if (*s == '/' || *s == '\0')
- {
- if (slash)
- {
- switch (s - slash) {
- case 1:
- f -= 1; /* squash // and trim final / from file */
- break;
- case 2:
- if (!strncmp ((char *) slash, "/.", 2))
- {
- f -= 2; /* trim /. from file */
- }
- break;
- case 3:
- if (!strncmp ((char *) slash, "/..", 3))
- {
- f -= 3; /* trim /.. from file */
- while (f > file) {
- if (*--f == '/')
- break;
- }
- }
- break;
- }
- }
- slash = s;
- }
- if (!(*f++ = *s++))
- break;
- }
- return file;
-}
-
-#ifdef _WIN32
-/*
- * Convert '\\' to '/' , remove double '/'
- */
-static void
-FcConvertDosPath (char *str)
-{
- size_t len = strlen (str);
- char *p = str;
- char *dest = str;
- char *end = str + len;
- char last = 0;
-
- if (*p == '\\')
- {
- *p = '/';
- p++;
- dest++;
- }
- while (p < end)
- {
- if (*p == '\\')
- *p = '/';
-
- if (*p != '/'
- || last != '/')
- {
- *dest++ = *p;
- }
-
- last = *p;
- p++;
- }
-
- *dest = 0;
-}
-#endif
-
-FcChar8 *
-FcStrCanonFilename (const FcChar8 *s)
-{
-#ifdef _WIN32
- FcChar8 full[FC_MAX_FILE_LEN + 2];
- int size = GetFullPathName (s, sizeof (full) -1,
- full, NULL);
-
- if (size == 0)
- perror ("GetFullPathName");
-
- FcConvertDosPath (full);
- return FcStrCanonAbsoluteFilename (full);
-#else
- if (s[0] == '/')
- return FcStrCanonAbsoluteFilename (s);
- else
- {
- FcChar8 *full;
- FcChar8 *file;
-
- FcChar8 cwd[FC_MAX_FILE_LEN + 2];
- if (getcwd ((char *) cwd, FC_MAX_FILE_LEN) == NULL)
- return NULL;
- strcat ((char *) cwd, "/");
- full = FcStrPlus (cwd, s);
- file = FcStrCanonAbsoluteFilename (full);
- FcStrFree (full);
- return file;
- }
-#endif
-}
-
-
-FcStrSet *
-FcStrSetCreate (void)
-{
- FcStrSet *set = malloc (sizeof (FcStrSet));
- if (!set)
- return 0;
- FcMemAlloc (FC_MEM_STRSET, sizeof (FcStrSet));
- set->ref = 1;
- set->num = 0;
- set->size = 0;
- set->strs = 0;
- return set;
-}
-
-static FcBool
-_FcStrSetAppend (FcStrSet *set, FcChar8 *s)
-{
- if (FcStrSetMember (set, s))
- {
- FcStrFree (s);
- return FcTrue;
- }
- if (set->num == set->size)
- {
- FcChar8 **strs = malloc ((set->size + 2) * sizeof (FcChar8 *));
-
- if (!strs)
- return FcFalse;
- FcMemAlloc (FC_MEM_STRSET, (set->size + 2) * sizeof (FcChar8 *));
- if (set->num)
- memcpy (strs, set->strs, set->num * sizeof (FcChar8 *));
- if (set->strs)
- {
- FcMemFree (FC_MEM_STRSET, (set->size + 1) * sizeof (FcChar8 *));
- free (set->strs);
- }
- set->size = set->size + 1;
- set->strs = strs;
- }
- set->strs[set->num++] = s;
- set->strs[set->num] = 0;
- return FcTrue;
-}
-
-FcBool
-FcStrSetMember (FcStrSet *set, const FcChar8 *s)
-{
- int i;
-
- for (i = 0; i < set->num; i++)
- if (!FcStrCmp (set->strs[i], s))
- return FcTrue;
- return FcFalse;
-}
-
-FcBool
-FcStrSetEqual (FcStrSet *sa, FcStrSet *sb)
-{
- int i;
- if (sa->num != sb->num)
- return FcFalse;
- for (i = 0; i < sa->num; i++)
- if (!FcStrSetMember (sb, sa->strs[i]))
- return FcFalse;
- return FcTrue;
-}
-
-FcBool
-FcStrSetAdd (FcStrSet *set, const FcChar8 *s)
-{
- FcChar8 *new = FcStrCopy (s);
- if (!new)
- return FcFalse;
- if (!_FcStrSetAppend (set, new))
- {
- FcStrFree (new);
- return FcFalse;
- }
- return FcTrue;
-}
-
-FcBool
-FcStrSetAddFilename (FcStrSet *set, const FcChar8 *s)
-{
- FcChar8 *new = FcStrCopyFilename (s);
- if (!new)
- return FcFalse;
- if (!_FcStrSetAppend (set, new))
- {
- FcStrFree (new);
- return FcFalse;
- }
- return FcTrue;
-}
-
-FcBool
-FcStrSetDel (FcStrSet *set, const FcChar8 *s)
-{
- int i;
-
- for (i = 0; i < set->num; i++)
- if (!FcStrCmp (set->strs[i], s))
- {
- FcStrFree (set->strs[i]);
- /*
- * copy remaining string pointers and trailing
- * NULL
- */
- memmove (&set->strs[i], &set->strs[i+1],
- (set->num - i) * sizeof (FcChar8 *));
- set->num--;
- return FcTrue;
- }
- return FcFalse;
-}
-
-void
-FcStrSetDestroy (FcStrSet *set)
-{
- if (--set->ref == 0)
- {
- int i;
-
- for (i = 0; i < set->num; i++)
- FcStrFree (set->strs[i]);
- if (set->strs)
- {
- FcMemFree (FC_MEM_STRSET, (set->size + 1) * sizeof (FcChar8 *));
- free (set->strs);
- }
- FcMemFree (FC_MEM_STRSET, sizeof (FcStrSet));
- free (set);
- }
-}
-
-FcStrList *
-FcStrListCreate (FcStrSet *set)
-{
- FcStrList *list;
-
- list = malloc (sizeof (FcStrList));
- if (!list)
- return 0;
- FcMemAlloc (FC_MEM_STRLIST, sizeof (FcStrList));
- list->set = set;
- set->ref++;
- list->n = 0;
- return list;
-}
-
-FcChar8 *
-FcStrListNext (FcStrList *list)
-{
- if (list->n >= list->set->num)
- return 0;
- return list->set->strs[list->n++];
-}
-
-void
-FcStrListDone (FcStrList *list)
-{
- FcStrSetDestroy (list->set);
- FcMemFree (FC_MEM_STRLIST, sizeof (FcStrList));
- free (list);
-}
-
-#define __fcstr__
-#include "fcaliastail.h"
-#undef __fcstr__
+/*
+ * fontconfig/src/fcstr.c
+ *
+ * Copyright © 2000 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the author(s) not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. The authors make no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "fcint.h"
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+FcChar8 *
+FcStrCopy (const FcChar8 *s)
+{
+ int len;
+ FcChar8 *r;
+
+ if (!s)
+ return 0;
+ len = strlen ((char *) s) + 1;
+ r = (FcChar8 *) malloc (len);
+ if (!r)
+ return 0;
+ FcMemAlloc (FC_MEM_STRING, len);
+ memcpy (r, s, len);
+ return r;
+}
+
+FcChar8 *
+FcStrPlus (const FcChar8 *s1, const FcChar8 *s2)
+{
+ int l = strlen ((char *)s1) + strlen ((char *) s2) + 1;
+ FcChar8 *s = malloc (l);
+
+ if (!s)
+ return 0;
+ FcMemAlloc (FC_MEM_STRING, l);
+ strcpy ((char *) s, (char *) s1);
+ strcat ((char *) s, (char *) s2);
+ return s;
+}
+
+void
+FcStrFree (FcChar8 *s)
+{
+ FcMemFree (FC_MEM_STRING, strlen ((char *) s) + 1);
+ free (s);
+}
+
+
+#include "../fc-case/fccase.h"
+
+#define FcCaseFoldUpperCount(cf) \
+ ((cf)->method == FC_CASE_FOLD_FULL ? 1 : (cf)->count)
+
+#define FC_STR_CANON_BUF_LEN 1024
+
+typedef struct _FcCaseWalker {
+ const FcChar8 *read;
+ const FcChar8 *src;
+ FcChar8 utf8[FC_MAX_CASE_FOLD_CHARS + 1];
+} FcCaseWalker;
+
+static void
+FcStrCaseWalkerInit (const FcChar8 *src, FcCaseWalker *w)
+{
+ w->src = src;
+ w->read = 0;
+}
+
+static FcChar8
+FcStrCaseWalkerLong (FcCaseWalker *w, FcChar8 r)
+{
+ FcChar32 ucs4;
+ int slen;
+ int len = strlen((char*)w->src);
+
+ slen = FcUtf8ToUcs4 (w->src - 1, &ucs4, len + 1);
+ if (slen <= 0)
+ return r;
+ if (FC_MIN_FOLD_CHAR <= ucs4 && ucs4 <= FC_MAX_FOLD_CHAR)
+ {
+ int min = 0;
+ int max = FC_NUM_CASE_FOLD;
+
+ while (min <= max)
+ {
+ int mid = (min + max) >> 1;
+ FcChar32 low = fcCaseFold[mid].upper;
+ FcChar32 high = low + FcCaseFoldUpperCount (&fcCaseFold[mid]);
+
+ if (high <= ucs4)
+ min = mid + 1;
+ else if (ucs4 < low)
+ max = mid - 1;
+ else
+ {
+ const FcCaseFold *fold = &fcCaseFold[mid];
+ int dlen;
+
+ switch (fold->method) {
+ case FC_CASE_FOLD_EVEN_ODD:
+ if ((ucs4 & 1) != (fold->upper & 1))
+ return r;
+ /* fall through ... */
+ default:
+ dlen = FcUcs4ToUtf8 (ucs4 + fold->offset, w->utf8);
+ break;
+ case FC_CASE_FOLD_FULL:
+ dlen = fold->count;
+ memcpy (w->utf8, fcCaseFoldChars + fold->offset, dlen);
+ break;
+ }
+
+ /* consume rest of src utf-8 bytes */
+ w->src += slen - 1;
+
+ /* read from temp buffer */
+ w->utf8[dlen] = '\0';
+ w->read = w->utf8;
+ return *w->read++;
+ }
+ }
+ }
+ return r;
+}
+
+static FcChar8
+FcStrCaseWalkerNext (FcCaseWalker *w)
+{
+ FcChar8 r;
+
+ if (w->read)
+ {
+ if ((r = *w->read++))
+ return r;
+ w->read = 0;
+ }
+ r = *w->src++;
+
+ if ((r & 0xc0) == 0xc0)
+ return FcStrCaseWalkerLong (w, r);
+ if ('A' <= r && r <= 'Z')
+ r = r - 'A' + 'a';
+ return r;
+}
+
+static FcChar8
+FcStrCaseWalkerNextIgnoreBlanks (FcCaseWalker *w)
+{
+ FcChar8 r;
+
+ if (w->read)
+ {
+ if ((r = *w->read++))
+ return r;
+ w->read = 0;
+ }
+ do
+ {
+ r = *w->src++;
+ } while (r == ' ');
+
+ if ((r & 0xc0) == 0xc0)
+ return FcStrCaseWalkerLong (w, r);
+ if ('A' <= r && r <= 'Z')
+ r = r - 'A' + 'a';
+ return r;
+}
+
+FcChar8 *
+FcStrDowncase (const FcChar8 *s)
+{
+ FcCaseWalker w;
+ int len = 0;
+ FcChar8 *dst, *d;
+
+ FcStrCaseWalkerInit (s, &w);
+ while (FcStrCaseWalkerNext (&w))
+ len++;
+ d = dst = malloc (len + 1);
+ if (!d)
+ return 0;
+ FcMemAlloc (FC_MEM_STRING, len + 1);
+ FcStrCaseWalkerInit (s, &w);
+ while ((*d++ = FcStrCaseWalkerNext (&w)));
+ return dst;
+}
+
+int
+FcStrCmpIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
+{
+ FcCaseWalker w1, w2;
+ FcChar8 c1, c2;
+
+ if (s1 == s2) return 0;
+
+ FcStrCaseWalkerInit (s1, &w1);
+ FcStrCaseWalkerInit (s2, &w2);
+
+ for (;;)
+ {
+ c1 = FcStrCaseWalkerNext (&w1);
+ c2 = FcStrCaseWalkerNext (&w2);
+ if (!c1 || (c1 != c2))
+ break;
+ }
+ return (int) c1 - (int) c2;
+}
+
+int
+FcStrCmpIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
+{
+ FcCaseWalker w1, w2;
+ FcChar8 c1, c2;
+
+ if (s1 == s2) return 0;
+
+ FcStrCaseWalkerInit (s1, &w1);
+ FcStrCaseWalkerInit (s2, &w2);
+
+ for (;;)
+ {
+ c1 = FcStrCaseWalkerNextIgnoreBlanks (&w1);
+ c2 = FcStrCaseWalkerNextIgnoreBlanks (&w2);
+ if (!c1 || (c1 != c2))
+ break;
+ }
+ return (int) c1 - (int) c2;
+}
+
+int
+FcStrCmp (const FcChar8 *s1, const FcChar8 *s2)
+{
+ FcChar8 c1, c2;
+
+ if (s1 == s2)
+ return 0;
+ for (;;)
+ {
+ c1 = *s1++;
+ c2 = *s2++;
+ if (!c1 || c1 != c2)
+ break;
+ }
+ return (int) c1 - (int) c2;
+}
+
+/*
+ * Return a hash value for a string
+ */
+
+FcChar32
+FcStrHashIgnoreCase (const FcChar8 *s)
+{
+ FcChar32 h = 0;
+ FcCaseWalker w;
+ FcChar8 c;
+
+ FcStrCaseWalkerInit (s, &w);
+ while ((c = FcStrCaseWalkerNext (&w)))
+ h = ((h << 3) ^ (h >> 3)) ^ c;
+ return h;
+}
+
+/*
+ * Is the head of s1 equal to s2?
+ */
+
+static FcBool
+FcStrIsAtIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
+{
+ FcCaseWalker w1, w2;
+ FcChar8 c1, c2;
+
+ FcStrCaseWalkerInit (s1, &w1);
+ FcStrCaseWalkerInit (s2, &w2);
+
+ for (;;)
+ {
+ c1 = FcStrCaseWalkerNextIgnoreBlanks (&w1);
+ c2 = FcStrCaseWalkerNextIgnoreBlanks (&w2);
+ if (!c1 || (c1 != c2))
+ break;
+ }
+ return c1 == c2 || !c2;
+}
+
+/*
+ * Does s1 contain an instance of s2 (ignoring blanks and case)?
+ */
+
+const FcChar8 *
+FcStrContainsIgnoreBlanksAndCase (const FcChar8 *s1, const FcChar8 *s2)
+{
+ while (*s1)
+ {
+ if (FcStrIsAtIgnoreBlanksAndCase (s1, s2))
+ return s1;
+ s1++;
+ }
+ return 0;
+}
+
+static FcBool
+FcCharIsPunct (const FcChar8 c)
+{
+ if (c < '0')
+ return FcTrue;
+ if (c <= '9')
+ return FcFalse;
+ if (c < 'A')
+ return FcTrue;
+ if (c <= 'Z')
+ return FcFalse;
+ if (c < 'a')
+ return FcTrue;
+ if (c <= 'z')
+ return FcFalse;
+ if (c <= '~')
+ return FcTrue;
+ return FcFalse;
+}
+
+/*
+ * Is the head of s1 equal to s2?
+ */
+
+static FcBool
+FcStrIsAtIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
+{
+ FcCaseWalker w1, w2;
+ FcChar8 c1, c2;
+
+ FcStrCaseWalkerInit (s1, &w1);
+ FcStrCaseWalkerInit (s2, &w2);
+
+ for (;;)
+ {
+ c1 = FcStrCaseWalkerNext (&w1);
+ c2 = FcStrCaseWalkerNext (&w2);
+ if (!c1 || (c1 != c2))
+ break;
+ }
+ return c1 == c2 || !c2;
+}
+
+/*
+ * Does s1 contain an instance of s2 (ignoring blanks and case)?
+ */
+
+const FcChar8 *
+FcStrContainsIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
+{
+ while (*s1)
+ {
+ if (FcStrIsAtIgnoreCase (s1, s2))
+ return s1;
+ s1++;
+ }
+ return 0;
+}
+
+/*
+ * Does s1 contain an instance of s2 on a word boundary (ignoring case)?
+ */
+
+const FcChar8 *
+FcStrContainsWord (const FcChar8 *s1, const FcChar8 *s2)
+{
+ FcBool wordStart = FcTrue;
+ int s1len = strlen ((char *) s1);
+ int s2len = strlen ((char *) s2);
+
+ while (s1len >= s2len)
+ {
+ if (wordStart &&
+ FcStrIsAtIgnoreCase (s1, s2) &&
+ (s1len == s2len || FcCharIsPunct (s1[s2len])))
+ {
+ return s1;
+ }
+ wordStart = FcFalse;
+ if (FcCharIsPunct (*s1))
+ wordStart = FcTrue;
+ s1++;
+ s1len--;
+ }
+ return 0;
+}
+
+const FcChar8 *
+FcStrStrIgnoreCase (const FcChar8 *s1, const FcChar8 *s2)
+{
+ FcCaseWalker w1, w2;
+ FcChar8 c1, c2;
+ const FcChar8 *cur;
+
+ if (!s1 || !s2)
+ return 0;
+
+ if (s1 == s2)
+ return s1;
+
+ FcStrCaseWalkerInit (s1, &w1);
+ FcStrCaseWalkerInit (s2, &w2);
+
+ c2 = FcStrCaseWalkerNext (&w2);
+
+ for (;;)
+ {
+ cur = w1.src;
+ c1 = FcStrCaseWalkerNext (&w1);
+ if (!c1)
+ break;
+ if (c1 == c2)
+ {
+ FcCaseWalker w1t = w1;
+ FcCaseWalker w2t = w2;
+ FcChar8 c1t, c2t;
+
+ for (;;)
+ {
+ c1t = FcStrCaseWalkerNext (&w1t);
+ c2t = FcStrCaseWalkerNext (&w2t);
+
+ if (!c2t)
+ return cur;
+ if (c2t != c1t)
+ break;
+ }
+ }
+ }
+ return 0;
+}
+
+const FcChar8 *
+FcStrStr (const FcChar8 *s1, const FcChar8 *s2)
+{
+ FcChar8 c1, c2;
+ const FcChar8 * p = s1;
+ const FcChar8 * b = s2;
+
+ if (!s1 || !s2)
+ return 0;
+
+ if (s1 == s2)
+ return s1;
+
+again:
+ c2 = *s2++;
+
+ if (!c2)
+ return 0;
+
+ for (;;)
+ {
+ p = s1;
+ c1 = *s1++;
+ if (!c1 || c1 == c2)
+ break;
+ }
+
+ if (c1 != c2)
+ return 0;
+
+ for (;;)
+ {
+ c1 = *s1;
+ c2 = *s2;
+ if (c1 && c2 && c1 != c2)
+ {
+ s1 = p + 1;
+ s2 = b;
+ goto again;
+ }
+ if (!c2)
+ return p;
+ if (!c1)
+ return 0;
+ ++ s1;
+ ++ s2;
+ }
+ /* never reached. */
+}
+
+int
+FcUtf8ToUcs4 (const FcChar8 *src_orig,
+ FcChar32 *dst,
+ int len)
+{
+ const FcChar8 *src = src_orig;
+ FcChar8 s;
+ int extra;
+ FcChar32 result;
+
+ if (len == 0)
+ return 0;
+
+ s = *src++;
+ len--;
+
+ if (!(s & 0x80))
+ {
+ result = s;
+ extra = 0;
+ }
+ else if (!(s & 0x40))
+ {
+ return -1;
+ }
+ else if (!(s & 0x20))
+ {
+ result = s & 0x1f;
+ extra = 1;
+ }
+ else if (!(s & 0x10))
+ {
+ result = s & 0xf;
+ extra = 2;
+ }
+ else if (!(s & 0x08))
+ {
+ result = s & 0x07;
+ extra = 3;
+ }
+ else if (!(s & 0x04))
+ {
+ result = s & 0x03;
+ extra = 4;
+ }
+ else if ( ! (s & 0x02))
+ {
+ result = s & 0x01;
+ extra = 5;
+ }
+ else
+ {
+ return -1;
+ }
+ if (extra > len)
+ return -1;
+
+ while (extra--)
+ {
+ result <<= 6;
+ s = *src++;
+
+ if ((s & 0xc0) != 0x80)
+ return -1;
+
+ result |= s & 0x3f;
+ }
+ *dst = result;
+ return src - src_orig;
+}
+
+FcBool
+FcUtf8Len (const FcChar8 *string,
+ int len,
+ int *nchar,
+ int *wchar)
+{
+ int n;
+ int clen;
+ FcChar32 c;
+ FcChar32 max;
+
+ n = 0;
+ max = 0;
+ while (len)
+ {
+ clen = FcUtf8ToUcs4 (string, &c, len);
+ if (clen <= 0) /* malformed UTF8 string */
+ return FcFalse;
+ if (c > max)
+ max = c;
+ string += clen;
+ len -= clen;
+ n++;
+ }
+ *nchar = n;
+ if (max >= 0x10000)
+ *wchar = 4;
+ else if (max > 0x100)
+ *wchar = 2;
+ else
+ *wchar = 1;
+ return FcTrue;
+}
+
+int
+FcUcs4ToUtf8 (FcChar32 ucs4,
+ FcChar8 dest[FC_UTF8_MAX_LEN])
+{
+ int bits;
+ FcChar8 *d = dest;
+
+ if (ucs4 < 0x80) { *d++= ucs4; bits= -6; }
+ else if (ucs4 < 0x800) { *d++= ((ucs4 >> 6) & 0x1F) | 0xC0; bits= 0; }
+ else if (ucs4 < 0x10000) { *d++= ((ucs4 >> 12) & 0x0F) | 0xE0; bits= 6; }
+ else if (ucs4 < 0x200000) { *d++= ((ucs4 >> 18) & 0x07) | 0xF0; bits= 12; }
+ else if (ucs4 < 0x4000000) { *d++= ((ucs4 >> 24) & 0x03) | 0xF8; bits= 18; }
+ else if (ucs4 < 0x80000000) { *d++= ((ucs4 >> 30) & 0x01) | 0xFC; bits= 24; }
+ else return 0;
+
+ for ( ; bits >= 0; bits-= 6) {
+ *d++= ((ucs4 >> bits) & 0x3F) | 0x80;
+ }
+ return d - dest;
+}
+
+#define GetUtf16(src,endian) \
+ ((FcChar16) ((src)[endian == FcEndianBig ? 0 : 1] << 8) | \
+ (FcChar16) ((src)[endian == FcEndianBig ? 1 : 0]))
+
+int
+FcUtf16ToUcs4 (const FcChar8 *src_orig,
+ FcEndian endian,
+ FcChar32 *dst,
+ int len) /* in bytes */
+{
+ const FcChar8 *src = src_orig;
+ FcChar16 a, b;
+ FcChar32 result;
+
+ if (len < 2)
+ return 0;
+
+ a = GetUtf16 (src, endian); src += 2; len -= 2;
+
+ /*
+ * Check for surrogate
+ */
+ if ((a & 0xfc00) == 0xd800)
+ {
+ if (len < 2)
+ return 0;
+ b = GetUtf16 (src, endian); src += 2; len -= 2;
+ /*
+ * Check for invalid surrogate sequence
+ */
+ if ((b & 0xfc00) != 0xdc00)
+ return 0;
+ result = ((((FcChar32) a & 0x3ff) << 10) |
+ ((FcChar32) b & 0x3ff)) + 0x10000;
+ }
+ else
+ result = a;
+ *dst = result;
+ return src - src_orig;
+}
+
+FcBool
+FcUtf16Len (const FcChar8 *string,
+ FcEndian endian,
+ int len, /* in bytes */
+ int *nchar,
+ int *wchar)
+{
+ int n;
+ int clen;
+ FcChar32 c;
+ FcChar32 max;
+
+ n = 0;
+ max = 0;
+ while (len)
+ {
+ clen = FcUtf16ToUcs4 (string, endian, &c, len);
+ if (clen <= 0) /* malformed UTF8 string */
+ return FcFalse;
+ if (c > max)
+ max = c;
+ string += clen;
+ len -= clen;
+ n++;
+ }
+ *nchar = n;
+ if (max >= 0x10000)
+ *wchar = 4;
+ else if (max > 0x100)
+ *wchar = 2;
+ else
+ *wchar = 1;
+ return FcTrue;
+}
+
+void
+FcStrBufInit (FcStrBuf *buf, FcChar8 *init, int size)
+{
+ if (init)
+ {
+ buf->buf = init;
+ buf->size = size;
+ } else
+ {
+ buf->buf = buf->buf_static;
+ buf->size = sizeof (buf->buf_static);
+ }
+ buf->allocated = FcFalse;
+ buf->failed = FcFalse;
+ buf->len = 0;
+}
+
+void
+FcStrBufDestroy (FcStrBuf *buf)
+{
+ if (buf->allocated)
+ {
+ FcMemFree (FC_MEM_STRBUF, buf->size);
+ free (buf->buf);
+ FcStrBufInit (buf, 0, 0);
+ }
+}
+
+FcChar8 *
+FcStrBufDone (FcStrBuf *buf)
+{
+ FcChar8 *ret;
+
+ if (buf->failed)
+ ret = NULL;
+ else
+ ret = malloc (buf->len + 1);
+ if (ret)
+ {
+ FcMemAlloc (FC_MEM_STRING, buf->len + 1);
+ memcpy (ret, buf->buf, buf->len);
+ ret[buf->len] = '\0';
+ }
+ FcStrBufDestroy (buf);
+ return ret;
+}
+
+FcChar8 *
+FcStrBufDoneStatic (FcStrBuf *buf)
+{
+ FcStrBufChar (buf, '\0');
+
+ if (buf->failed)
+ return NULL;
+
+ return buf->buf;
+}
+
+FcBool
+FcStrBufChar (FcStrBuf *buf, FcChar8 c)
+{
+ if (buf->len == buf->size)
+ {
+ FcChar8 *new;
+ int size;
+
+ if (buf->failed)
+ return FcFalse;
+
+ if (buf->allocated)
+ {
+ size = buf->size * 2;
+ new = realloc (buf->buf, size);
+ }
+ else
+ {
+ size = buf->size + 64;
+ new = malloc (size);
+ if (new)
+ {
+ buf->allocated = FcTrue;
+ memcpy (new, buf->buf, buf->len);
+ }
+ }
+ if (!new)
+ {
+ buf->failed = FcTrue;
+ return FcFalse;
+ }
+ if (buf->size)
+ FcMemFree (FC_MEM_STRBUF, buf->size);
+ FcMemAlloc (FC_MEM_STRBUF, size);
+ buf->size = size;
+ buf->buf = new;
+ }
+ buf->buf[buf->len++] = c;
+ return FcTrue;
+}
+
+FcBool
+FcStrBufString (FcStrBuf *buf, const FcChar8 *s)
+{
+ FcChar8 c;
+ while ((c = *s++))
+ if (!FcStrBufChar (buf, c))
+ return FcFalse;
+ return FcTrue;
+}
+
+FcBool
+FcStrBufData (FcStrBuf *buf, const FcChar8 *s, int len)
+{
+ while (len-- > 0)
+ if (!FcStrBufChar (buf, *s++))
+ return FcFalse;
+ return FcTrue;
+}
+
+FcBool
+FcStrUsesHome (const FcChar8 *s)
+{
+ return *s == '~';
+}
+
+FcChar8 *
+FcStrCopyFilename (const FcChar8 *s)
+{
+ FcChar8 *new;
+
+ if (*s == '~')
+ {
+ FcChar8 *home = FcConfigHome ();
+ FcChar8 *full;
+ int size;
+ if (!home)
+ return 0;
+ size = strlen ((char *) home) + strlen ((char *) s);
+ full = (FcChar8 *) malloc (size);
+ if (!full)
+ return 0;
+ strcpy ((char *) full, (char *) home);
+ strcat ((char *) full, (char *) s + 1);
+ new = FcStrCanonFilename (full);
+ free (full);
+ }
+ else
+ new = FcStrCanonFilename (s);
+ return new;
+}
+
+FcChar8 *
+FcStrLastSlash (const FcChar8 *path)
+{
+ FcChar8 *slash;
+
+ slash = (FcChar8 *) strrchr ((const char *) path, '/');
+#ifdef _WIN32
+ {
+ FcChar8 *backslash;
+
+ backslash = (FcChar8 *) strrchr ((const char *) path, '\\');
+ if (!slash || (backslash && backslash > slash))
+ slash = backslash;
+ }
+#endif
+
+ return slash;
+}
+
+FcChar8 *
+FcStrDirname (const FcChar8 *file)
+{
+ FcChar8 *slash;
+ FcChar8 *dir;
+
+ slash = FcStrLastSlash (file);
+ if (!slash)
+ return FcStrCopy ((FcChar8 *) ".");
+ dir = malloc ((slash - file) + 1);
+ if (!dir)
+ return 0;
+ FcMemAlloc (FC_MEM_STRING, (slash - file) + 1);
+ strncpy ((char *) dir, (const char *) file, slash - file);
+ dir[slash - file] = '\0';
+ return dir;
+}
+
+FcChar8 *
+FcStrBasename (const FcChar8 *file)
+{
+ FcChar8 *slash;
+
+ slash = FcStrLastSlash (file);
+ if (!slash)
+ return FcStrCopy (file);
+ return FcStrCopy (slash + 1);
+}
+
+static FcChar8 *
+FcStrCanonAbsoluteFilename (const FcChar8 *s)
+{
+ FcChar8 *file;
+ FcChar8 *f;
+ const FcChar8 *slash;
+ int size;
+
+ size = strlen ((char *) s) + 1;
+ file = malloc (size);
+ if (!file)
+ return NULL;
+ FcMemAlloc (FC_MEM_STRING, size);
+ slash = NULL;
+ f = file;
+ for (;;) {
+ if (*s == '/' || *s == '\0')
+ {
+ if (slash)
+ {
+ switch (s - slash) {
+ case 1:
+ f -= 1; /* squash // and trim final / from file */
+ break;
+ case 2:
+ if (!strncmp ((char *) slash, "/.", 2))
+ {
+ f -= 2; /* trim /. from file */
+ }
+ break;
+ case 3:
+ if (!strncmp ((char *) slash, "/..", 3))
+ {
+ f -= 3; /* trim /.. from file */
+ while (f > file) {
+ if (*--f == '/')
+ break;
+ }
+ }
+ break;
+ }
+ }
+ slash = s;
+ }
+ if (!(*f++ = *s++))
+ break;
+ }
+ return file;
+}
+
+#ifdef _WIN32
+/*
+ * Convert '\\' to '/' , remove double '/'
+ */
+static void
+FcConvertDosPath (char *str)
+{
+ size_t len = strlen (str);
+ char *p = str;
+ char *dest = str;
+ char *end = str + len;
+ char last = 0;
+
+ if (*p == '\\')
+ {
+ *p = '/';
+ p++;
+ dest++;
+ }
+ while (p < end)
+ {
+ if (*p == '\\')
+ *p = '/';
+
+ if (*p != '/'
+ || last != '/')
+ {
+ *dest++ = *p;
+ }
+
+ last = *p;
+ p++;
+ }
+
+ *dest = 0;
+}
+#endif
+
+FcChar8 *
+FcStrCanonFilename (const FcChar8 *s)
+{
+#ifdef _WIN32
+ FcChar8 full[FC_MAX_FILE_LEN + 2];
+ int size = GetFullPathName (s, sizeof (full) -1,
+ full, NULL);
+
+ if (size == 0)
+ perror ("GetFullPathName");
+
+ FcConvertDosPath (full);
+ return FcStrCanonAbsoluteFilename (full);
+#else
+ if (s[0] == '/')
+ return FcStrCanonAbsoluteFilename (s);
+ else
+ {
+ FcChar8 *full;
+ FcChar8 *file;
+
+ FcChar8 cwd[FC_MAX_FILE_LEN + 2];
+ if (getcwd ((char *) cwd, FC_MAX_FILE_LEN) == NULL)
+ return NULL;
+ strcat ((char *) cwd, "/");
+ full = FcStrPlus (cwd, s);
+ file = FcStrCanonAbsoluteFilename (full);
+ FcStrFree (full);
+ return file;
+ }
+#endif
+}
+
+
+FcStrSet *
+FcStrSetCreate (void)
+{
+ FcStrSet *set = malloc (sizeof (FcStrSet));
+ if (!set)
+ return 0;
+ FcMemAlloc (FC_MEM_STRSET, sizeof (FcStrSet));
+ set->ref = 1;
+ set->num = 0;
+ set->size = 0;
+ set->strs = 0;
+ return set;
+}
+
+static FcBool
+_FcStrSetAppend (FcStrSet *set, FcChar8 *s)
+{
+ if (FcStrSetMember (set, s))
+ {
+ FcStrFree (s);
+ return FcTrue;
+ }
+ if (set->num == set->size)
+ {
+ FcChar8 **strs = malloc ((set->size + 2) * sizeof (FcChar8 *));
+
+ if (!strs)
+ return FcFalse;
+ FcMemAlloc (FC_MEM_STRSET, (set->size + 2) * sizeof (FcChar8 *));
+ if (set->num)
+ memcpy (strs, set->strs, set->num * sizeof (FcChar8 *));
+ if (set->strs)
+ {
+ FcMemFree (FC_MEM_STRSET, (set->size + 1) * sizeof (FcChar8 *));
+ free (set->strs);
+ }
+ set->size = set->size + 1;
+ set->strs = strs;
+ }
+ set->strs[set->num++] = s;
+ set->strs[set->num] = 0;
+ return FcTrue;
+}
+
+FcBool
+FcStrSetMember (FcStrSet *set, const FcChar8 *s)
+{
+ int i;
+
+ for (i = 0; i < set->num; i++)
+ if (!FcStrCmp (set->strs[i], s))
+ return FcTrue;
+ return FcFalse;
+}
+
+FcBool
+FcStrSetEqual (FcStrSet *sa, FcStrSet *sb)
+{
+ int i;
+ if (sa->num != sb->num)
+ return FcFalse;
+ for (i = 0; i < sa->num; i++)
+ if (!FcStrSetMember (sb, sa->strs[i]))
+ return FcFalse;
+ return FcTrue;
+}
+
+FcBool
+FcStrSetAdd (FcStrSet *set, const FcChar8 *s)
+{
+ FcChar8 *new = FcStrCopy (s);
+ if (!new)
+ return FcFalse;
+ if (!_FcStrSetAppend (set, new))
+ {
+ FcStrFree (new);
+ return FcFalse;
+ }
+ return FcTrue;
+}
+
+FcBool
+FcStrSetAddFilename (FcStrSet *set, const FcChar8 *s)
+{
+ FcChar8 *new = FcStrCopyFilename (s);
+ if (!new)
+ return FcFalse;
+ if (!_FcStrSetAppend (set, new))
+ {
+ FcStrFree (new);
+ return FcFalse;
+ }
+ return FcTrue;
+}
+
+FcBool
+FcStrSetDel (FcStrSet *set, const FcChar8 *s)
+{
+ int i;
+
+ for (i = 0; i < set->num; i++)
+ if (!FcStrCmp (set->strs[i], s))
+ {
+ FcStrFree (set->strs[i]);
+ /*
+ * copy remaining string pointers and trailing
+ * NULL
+ */
+ memmove (&set->strs[i], &set->strs[i+1],
+ (set->num - i) * sizeof (FcChar8 *));
+ set->num--;
+ return FcTrue;
+ }
+ return FcFalse;
+}
+
+void
+FcStrSetDestroy (FcStrSet *set)
+{
+ if (--set->ref == 0)
+ {
+ int i;
+
+ for (i = 0; i < set->num; i++)
+ FcStrFree (set->strs[i]);
+ if (set->strs)
+ {
+ FcMemFree (FC_MEM_STRSET, (set->size + 1) * sizeof (FcChar8 *));
+ free (set->strs);
+ }
+ FcMemFree (FC_MEM_STRSET, sizeof (FcStrSet));
+ free (set);
+ }
+}
+
+FcStrList *
+FcStrListCreate (FcStrSet *set)
+{
+ FcStrList *list;
+
+ list = malloc (sizeof (FcStrList));
+ if (!list)
+ return 0;
+ FcMemAlloc (FC_MEM_STRLIST, sizeof (FcStrList));
+ list->set = set;
+ set->ref++;
+ list->n = 0;
+ return list;
+}
+
+FcChar8 *
+FcStrListNext (FcStrList *list)
+{
+ if (list->n >= list->set->num)
+ return 0;
+ return list->set->strs[list->n++];
+}
+
+void
+FcStrListDone (FcStrList *list)
+{
+ FcStrSetDestroy (list->set);
+ FcMemFree (FC_MEM_STRLIST, sizeof (FcStrList));
+ free (list);
+}
+
+#define __fcstr__
+#include "fcaliastail.h"
+#undef __fcstr__
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 12:57:17 +0000