diff options
author | marha <marha@users.sourceforge.net> | 2011-09-12 11:27:51 +0200 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2011-09-12 11:27:51 +0200 |
commit | dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0 (patch) | |
tree | bdf833cc6a4fc9035411779e10dd9e8478201885 /fontconfig/src/fcstr.c | |
parent | 0b40f5f4b54453a77f4b09c431f8efc6875da61f (diff) | |
download | vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.tar.gz vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.tar.bz2 vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.zip |
Synchronised line endinge with release branch
Diffstat (limited to 'fontconfig/src/fcstr.c')
-rw-r--r-- | fontconfig/src/fcstr.c | 2396 |
1 files changed, 1198 insertions, 1198 deletions
diff --git a/fontconfig/src/fcstr.c b/fontconfig/src/fcstr.c index 6aee5d288..8b94ecba5 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 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__
+/* + * 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__ |