Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 686 insertions, 0 deletions

diff --git a/nx-X11/extras/fontconfig/src/fclang.c b/nx-X11/extras/fontconfig/src/fclang.c
new file mode 100644
index 000000000..fabf36a15
--- /dev/null
+++ b/nx-X11/extras/fontconfig/src/fclang.c
@@ -0,0 +1,686 @@
+/*
+ * $RCSId: xc/lib/fontconfig/src/fclang.c,v 1.7 2002/08/26 23:34:31 keithp Exp $
+ *
+ * Copyright © 2002 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.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD 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"
+
+typedef struct {
+    FcChar8	*lang;
+    FcCharSet	charset;
+} FcLangCharSet;
+
+typedef struct {
+    int begin;
+    int end;
+} FcLangCharSetRange;
+
+#include "../fc-lang/fclang.h"
+
+struct _FcLangSet {
+    FcChar32	map[NUM_LANG_SET_MAP];
+    FcStrSet	*extra;
+};
+
+#define FcLangSetBitSet(ls, id)	((ls)->map[(id)>>5] |= ((FcChar32) 1 << ((id) & 0x1f)))
+#define FcLangSetBitGet(ls, id) (((ls)->map[(id)>>5] >> ((id) & 0x1f)) & 1)
+
+FcLangSet *
+FcFreeTypeLangSet (const FcCharSet  *charset, 
+		   const FcChar8    *exclusiveLang)
+{
+    int		    i;
+    FcChar32	    missing;
+    const FcCharSet *exclusiveCharset = 0;
+    FcLangSet	    *ls;
+    
+
+    if (exclusiveLang)
+	exclusiveCharset = FcCharSetForLang (exclusiveLang);
+    ls = FcLangSetCreate ();
+    if (!ls)
+	return 0;
+    for (i = 0; i < NUM_LANG_CHAR_SET; i++)
+    {
+	/*
+	 * Check for Han charsets to make fonts
+	 * which advertise support for a single language
+	 * not support other Han languages
+	 */
+	if (exclusiveCharset &&
+	    FcFreeTypeIsExclusiveLang (fcLangCharSets[i].lang) &&
+	    fcLangCharSets[i].charset.leaves != exclusiveCharset->leaves)
+	{
+	    continue;
+	}
+	missing = FcCharSetSubtractCount (&fcLangCharSets[i].charset, charset);
+        if (FcDebug() & FC_DBG_SCANV)
+	{
+	    if (missing && missing < 10)
+	    {
+		FcCharSet   *missed = FcCharSetSubtract (&fcLangCharSets[i].charset, 
+							 charset);
+		FcChar32    ucs4;
+		FcChar32    map[FC_CHARSET_MAP_SIZE];
+		FcChar32    next;
+
+		printf ("\n%s(%d) ", fcLangCharSets[i].lang, missing);
+		printf ("{");
+		for (ucs4 = FcCharSetFirstPage (missed, map, &next);
+		     ucs4 != FC_CHARSET_DONE;
+		     ucs4 = FcCharSetNextPage (missed, map, &next))
+		{
+		    int	    i, j;
+		    for (i = 0; i < FC_CHARSET_MAP_SIZE; i++)
+			if (map[i])
+			{
+			    for (j = 0; j < 32; j++)
+				if (map[i] & (1 << j))
+				    printf (" %04x", ucs4 + i * 32 + j);
+			}
+		}
+		printf (" }\n\t");
+		FcCharSetDestroy (missed);
+	    }
+	    else
+		printf ("%s(%d) ", fcLangCharSets[i].lang, missing);
+	}
+	if (!missing)
+	    FcLangSetBitSet (ls, i);
+    }
+
+    if (FcDebug() & FC_DBG_SCANV)
+	printf ("\n");
+    
+    
+    return ls;
+}
+
+#define FcLangEnd(c)	((c) == '-' || (c) == '\0')
+
+FcLangResult
+FcLangCompare (const FcChar8 *s1, const FcChar8 *s2)
+{
+    FcChar8	    c1, c2;
+    FcLangResult    result = FcLangDifferentLang;
+
+    for (;;)
+    {
+	c1 = *s1++;
+	c2 = *s2++;
+	
+	c1 = FcToLower (c1);
+	c2 = FcToLower (c2);
+	if (c1 != c2)
+	{
+	    if (FcLangEnd (c1) && FcLangEnd (c2))
+		result = FcLangDifferentCountry;
+	    return result;
+	}
+	else if (!c1)
+	    return FcLangEqual;
+	else if (c1 == '-')
+	    result = FcLangDifferentCountry;
+    }
+}
+
+/*
+ * Return FcTrue when super contains sub. 
+ *
+ * super contains sub if super and sub have the same
+ * language and either the same country or one
+ * is missing the country
+ */
+
+static FcBool
+FcLangContains (const FcChar8 *super, const FcChar8 *sub)
+{
+    FcChar8	    c1, c2;
+
+    for (;;)
+    {
+	c1 = *super++;
+	c2 = *sub++;
+	
+	c1 = FcToLower (c1);
+	c2 = FcToLower (c2);
+	if (c1 != c2)
+	{
+	    /* see if super has a country while sub is mising one */
+	    if (c1 == '-' && c2 == '\0')
+		return FcTrue;
+	    /* see if sub has a country while super is mising one */
+	    if (c1 == '\0' && c2 == '-')
+		return FcTrue;
+	    return FcFalse;
+	}
+	else if (!c1)
+	    return FcTrue;
+    }
+}
+
+const FcCharSet *
+FcCharSetForLang (const FcChar8 *lang)
+{
+    int		i;
+    int		country = -1;
+    for (i = 0; i < NUM_LANG_CHAR_SET; i++)
+    {
+	switch (FcLangCompare (lang, fcLangCharSets[i].lang)) {
+	case FcLangEqual:
+	    return &fcLangCharSets[i].charset;
+	case FcLangDifferentCountry:
+	    if (country == -1)
+		country = i;
+	default:
+	    break;
+	}
+    }
+    if (country == -1)
+	return 0;
+    return &fcLangCharSets[i].charset;
+}
+
+FcLangSet *
+FcLangSetCreate (void)
+{
+    FcLangSet	*ls;
+
+    ls = malloc (sizeof (FcLangSet));
+    if (!ls)
+	return 0;
+    FcMemAlloc (FC_MEM_LANGSET, sizeof (FcLangSet));
+    memset (ls->map, '\0', sizeof (ls->map));
+    ls->extra = 0;
+    return ls;
+}
+
+void
+FcLangSetDestroy (FcLangSet *ls)
+{
+    if (ls->extra)
+	FcStrSetDestroy (ls->extra);
+    FcMemFree (FC_MEM_LANGSET, sizeof (FcLangSet));
+    free (ls);
+}
+
+FcLangSet *
+FcLangSetCopy (const FcLangSet *ls)
+{
+    FcLangSet	*new;
+
+    new = FcLangSetCreate ();
+    if (!new)
+	goto bail0;
+    memcpy (new->map, ls->map, sizeof (new->map));
+    if (ls->extra)
+    {
+	FcStrList	*list;
+	FcChar8		*extra;
+	
+	new->extra = FcStrSetCreate ();
+	if (!new->extra)
+	    goto bail1;
+
+	list = FcStrListCreate (ls->extra);	
+	if (!list)
+	    goto bail1;
+	
+	while ((extra = FcStrListNext (list)))
+	    if (!FcStrSetAdd (new->extra, extra))
+	    {
+		FcStrListDone (list);
+		goto bail1;
+	    }
+	FcStrListDone (list);
+    }
+    return new;
+bail1:
+    FcLangSetDestroy (new);
+bail0:
+    return 0;
+}
+
+static int
+FcLangSetIndex (const FcChar8 *lang)
+{
+    int	    low, high, mid = 0;
+    int	    cmp = 0;
+    FcChar8 firstChar = FcToLower(lang[0]); 
+    FcChar8 secondChar = firstChar ? FcToLower(lang[1]) : '\0';
+    
+    if (firstChar < 'a')
+    {
+	low = 0;
+	high = fcLangCharSetRanges[0].begin;
+    }
+    else if(firstChar > 'z')
+    {
+	low = fcLangCharSetRanges[25].begin;
+	high = NUM_LANG_CHAR_SET - 1;
+    }
+    else
+    {
+	low = fcLangCharSetRanges[firstChar - 'a'].begin;
+	high = fcLangCharSetRanges[firstChar - 'a'].end;
+	/* no matches */
+	if (low > high)
+	    return -low; /* next entry after where it would be */
+    }
+
+    while (low <= high)
+    {
+	mid = (high + low) >> 1;
+	if(fcLangCharSets[mid].lang[0] != firstChar)
+	    cmp = FcStrCmpIgnoreCase(fcLangCharSets[mid].lang, lang);
+	else
+	{   /* fast path for resolving 2-letter languages (by far the most common) after
+	     * finding the first char (probably already true because of the hash table) */
+	    cmp = fcLangCharSets[mid].lang[1] - secondChar;
+	    if (cmp == 0 && 
+		(fcLangCharSets[mid].lang[2] != '\0' || 
+		 lang[2] != '\0'))
+	    {
+		cmp = FcStrCmpIgnoreCase(fcLangCharSets[mid].lang+2, 
+					 lang+2);
+	    }
+	}
+	if (cmp == 0)
+	    return mid;
+	if (cmp < 0)
+	    low = mid + 1;
+	else
+	    high = mid - 1;
+    }
+    if (cmp < 0)
+	mid++;
+    return -(mid + 1);
+}
+
+FcBool
+FcLangSetAdd (FcLangSet *ls, const FcChar8 *lang)
+{
+    int	    id;
+
+    id = FcLangSetIndex (lang);
+    if (id >= 0)
+    {
+	FcLangSetBitSet (ls, id);
+	return FcTrue;
+    }
+    if (!ls->extra)
+    {
+	ls->extra = FcStrSetCreate ();
+	if (!ls->extra)
+	    return FcFalse;
+    }
+    return FcStrSetAdd (ls->extra, lang);
+}
+
+FcLangResult
+FcLangSetHasLang (const FcLangSet *ls, const FcChar8 *lang)
+{
+    int		    id;
+    FcLangResult    best, r;
+    int		    i;
+
+    id = FcLangSetIndex (lang);
+    if (id < 0)
+	id = -id - 1;
+    else if (FcLangSetBitGet (ls, id))
+	return FcLangEqual;
+    best = FcLangDifferentLang;
+    for (i = id - 1; i >= 0; i--)
+    {
+	r = FcLangCompare (lang, fcLangCharSets[i].lang);
+	if (r == FcLangDifferentLang)
+	    break;
+	if (FcLangSetBitGet (ls, i) && r < best)
+	    best = r;
+    }
+    for (i = id; i < NUM_LANG_CHAR_SET; i++)
+    {
+	r = FcLangCompare (lang, fcLangCharSets[i].lang);
+	if (r == FcLangDifferentLang)
+	    break;
+	if (FcLangSetBitGet (ls, i) && r < best)
+	    best = r;
+    }
+    if (ls->extra)
+    {
+	FcStrList	*list = FcStrListCreate (ls->extra);
+	FcChar8		*extra;
+	FcLangResult	r;
+	
+	if (list)
+	{
+	    while (best > FcLangEqual && (extra = FcStrListNext (list)))
+	    {
+		r = FcLangCompare (lang, extra);
+		if (r < best)
+		    best = r;
+	    }
+	    FcStrListDone (list);
+	}
+    }
+    return best;
+}
+
+static FcLangResult
+FcLangSetCompareStrSet (const FcLangSet *ls, FcStrSet *set)
+{
+    FcStrList	    *list = FcStrListCreate (set);
+    FcLangResult    r, best = FcLangDifferentLang;
+    FcChar8	    *extra;
+
+    if (list)
+    {
+	while (best > FcLangEqual && (extra = FcStrListNext (list)))
+	{
+	    r = FcLangSetHasLang (ls, extra);
+	    if (r < best)
+		best = r;
+	}
+	FcStrListDone (list);
+    }
+    return best;
+}
+
+FcLangResult
+FcLangSetCompare (const FcLangSet *lsa, const FcLangSet *lsb)
+{
+    int		    i, j;
+    FcLangResult    best, r;
+
+    for (i = 0; i < NUM_LANG_SET_MAP; i++)
+	if (lsa->map[i] & lsb->map[i])
+	    return FcLangEqual;
+    best = FcLangDifferentLang;
+    for (j = 0; j < NUM_COUNTRY_SET; j++)
+	for (i = 0; i < NUM_LANG_SET_MAP; i++)
+	    if ((lsa->map[i] & fcLangCountrySets[j][i]) &&
+		(lsb->map[i] & fcLangCountrySets[j][i]))
+	    {
+		best = FcLangDifferentCountry;
+		break;
+	    }
+    if (lsa->extra)
+    {
+	r = FcLangSetCompareStrSet (lsb, lsa->extra);
+	if (r < best)
+	    best = r;
+    }
+    if (best > FcLangEqual && lsb->extra)
+    {
+	r = FcLangSetCompareStrSet (lsa, lsb->extra);
+	if (r < best)
+	    best = r;
+    }
+    return best;
+}
+
+/*
+ * Used in computing values -- mustn't allocate any storage
+ */
+FcLangSet *
+FcLangSetPromote (const FcChar8 *lang)
+{
+    static FcLangSet	ls;
+    static FcStrSet	strs;
+    static FcChar8	*str;
+    int			id;
+
+    memset (ls.map, '\0', sizeof (ls.map));
+    ls.extra = 0;
+    id = FcLangSetIndex (lang);
+    if (id > 0)
+    {
+	FcLangSetBitSet (&ls, id);
+    }
+    else
+    {
+	ls.extra = &strs;
+	strs.num = 1;
+	strs.size = 1;
+	strs.strs = &str;
+	strs.ref = 1;
+	str = (FcChar8 *) lang;
+    }
+    return &ls;
+}
+
+FcChar32
+FcLangSetHash (const FcLangSet *ls)
+{
+    FcChar32	h = 0;
+    int		i;
+
+    for (i = 0; i < NUM_LANG_SET_MAP; i++)
+	h ^= ls->map[i];
+    if (ls->extra)
+	h ^= ls->extra->num;
+    return h;
+}
+
+FcLangSet *
+FcNameParseLangSet (const FcChar8 *string)
+{
+    FcChar8	    lang[32],c;
+    int i;
+    FcLangSet	    *ls;
+
+    ls = FcLangSetCreate ();
+    if (!ls)
+	goto bail0;
+
+    for(;;)
+    {
+	for(i = 0; i < 31;i++)
+	{
+	    c = *string++;
+	    if(c == '\0' || c == '|')
+		break; /* end of this code */
+	    lang[i] = c;
+	}
+	lang[i] = '\0';
+	if (!FcLangSetAdd (ls, lang))
+	    goto bail1;
+	if(c == '\0')
+	    break;
+    }
+    return ls;
+bail1:
+    FcLangSetDestroy (ls);
+bail0:
+    return 0;
+}
+
+FcBool
+FcNameUnparseLangSet (FcStrBuf *buf, const FcLangSet *ls)
+{
+    int		i, bit;
+    FcChar32	bits;
+    FcBool	first = FcTrue;
+
+    for (i = 0; i < NUM_LANG_SET_MAP; i++)
+    {
+	if ((bits = ls->map[i]))
+	{
+	    for (bit = 0; bit <= 31; bit++)
+		if (bits & (1 << bit))
+		{
+		    int id = (i << 5) | bit;
+		    if (!first)
+			if (!FcStrBufChar (buf, '|'))
+			    return FcFalse;
+		    if (!FcStrBufString (buf, fcLangCharSets[id].lang))
+			return FcFalse;
+		    first = FcFalse;
+		}
+	}
+    }
+    if (ls->extra)
+    {
+	FcStrList   *list = FcStrListCreate (ls->extra);
+	FcChar8	    *extra;
+
+	if (!list)
+	    return FcFalse;
+	while ((extra = FcStrListNext (list)))
+	{
+	    if (!first)
+		if (!FcStrBufChar (buf, '|'))
+		    return FcFalse;
+	    if (!FcStrBufString (buf, extra))
+		return FcFalse;
+	    first = FcFalse;
+	}
+    }
+    return FcTrue;
+}
+
+FcBool
+FcLangSetEqual (const FcLangSet *lsa, const FcLangSet *lsb)
+{
+    int	    i;
+
+    for (i = 0; i < NUM_LANG_SET_MAP; i++)
+    {
+	if (lsa->map[i] != lsb->map[i])
+	    return FcFalse;
+    }
+    if (!lsa->extra && !lsb->extra)
+	return FcTrue;
+    if (lsa->extra && lsb->extra)
+	return FcStrSetEqual (lsa->extra, lsb->extra);
+    return FcFalse;
+}
+
+static FcBool
+FcLangSetContainsLang (const FcLangSet *ls, const FcChar8 *lang)
+{
+    int		    id;
+    int		    i;
+
+    id = FcLangSetIndex (lang);
+    if (id < 0)
+	id = -id - 1;
+    else if (FcLangSetBitGet (ls, id))
+	return FcTrue;
+    /*
+     * search up and down among equal languages for a match
+     */
+    for (i = id - 1; i >= 0; i--)
+    {
+	if (FcLangCompare (fcLangCharSets[i].lang, lang) == FcLangDifferentLang)
+	    break;
+	if (FcLangSetBitGet (ls, i) &&
+	    FcLangContains (fcLangCharSets[i].lang, lang))
+	    return FcTrue;
+    }
+    for (i = id; i < NUM_LANG_CHAR_SET; i++)
+    {
+	if (FcLangCompare (fcLangCharSets[i].lang, lang) == FcLangDifferentLang)
+	    break;
+	if (FcLangSetBitGet (ls, i) &&
+	    FcLangContains (fcLangCharSets[i].lang, lang))
+	    return FcTrue;
+    }
+    if (ls->extra)
+    {
+	FcStrList	*list = FcStrListCreate (ls->extra);
+	FcChar8		*extra;
+	
+	if (list)
+	{
+	    while ((extra = FcStrListNext (list)))
+	    {
+		if (FcLangContains (extra, lang))
+		    break;
+	    }
+	    FcStrListDone (list);
+    	    if (extra)
+		return FcTrue;
+	}
+    }
+    return FcFalse;
+}
+
+/*
+ * return FcTrue if lsa contains every language in lsb
+ */
+FcBool
+FcLangSetContains (const FcLangSet *lsa, const FcLangSet *lsb)
+{
+    int		    i, j;
+    FcChar32	    missing;
+
+    if (FcDebug() & FC_DBG_MATCHV)
+    {
+	printf ("FcLangSet "); FcLangSetPrint (lsa);
+	printf (" contains "); FcLangSetPrint (lsb);
+	printf ("\n");
+    }
+    /*
+     * check bitmaps for missing language support
+     */
+    for (i = 0; i < NUM_LANG_SET_MAP; i++)
+    {
+	missing = lsb->map[i] & ~lsa->map[i];
+	if (missing)
+	{
+	    for (j = 0; j < 32; j++)
+		if (missing & (1 << j)) 
+		{
+		    if (!FcLangSetContainsLang (lsa,
+						fcLangCharSets[i*32 + j].lang))
+		    {
+			if (FcDebug() & FC_DBG_MATCHV)
+			    printf ("\tMissing bitmap %s\n", fcLangCharSets[i*32+j].lang);
+			return FcFalse;
+		    }
+		}
+	}
+    }
+    if (lsb->extra)
+    {
+	FcStrList   *list = FcStrListCreate (lsb->extra);
+	FcChar8	    *extra;
+
+	if (list)
+	{
+	    while ((extra = FcStrListNext (list)))
+	    {
+		if (!FcLangSetContainsLang (lsa, extra))
+		{
+		    if (FcDebug() & FC_DBG_MATCHV)
+			printf ("\tMissing string %s\n", extra);
+		    break;
+		}
+	    }
+	    FcStrListDone (list);
+	    if (extra)
+		return FcFalse;
+	}
+    }
+    return FcTrue;
+}