Added libXft-2.2.0 fontconfig-2.8.0 libXrender-0.9.6

1 files changed, 1422 insertions, 0 deletions

diff --git a/fontconfig/src/fccharset.c b/fontconfig/src/fccharset.c
new file mode 100644
index 000000000..d30e1614a
--- /dev/null
+++ b/fontconfig/src/fccharset.c
@@ -0,0 +1,1422 @@
+/*
+ * fontconfig/src/fccharset.c
+ *
+ * Copyright © 2001 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>
+
+/* #define CHECK */
+
+FcCharSet *
+FcCharSetCreate (void)
+{
+    FcCharSet	*fcs;
+
+    fcs = (FcCharSet *) malloc (sizeof (FcCharSet));
+    if (!fcs)
+	return 0;
+    FcMemAlloc (FC_MEM_CHARSET, sizeof (FcCharSet));
+    fcs->ref = 1;
+    fcs->num = 0;
+    fcs->leaves_offset = 0;
+    fcs->numbers_offset = 0;
+    return fcs;
+}
+
+FcCharSet *
+FcCharSetNew (void)
+{
+    return FcCharSetCreate ();
+}
+
+void
+FcCharSetDestroy (FcCharSet *fcs)
+{
+    int i;
+    
+    if (fcs->ref == FC_REF_CONSTANT)
+    {
+	FcCacheObjectDereference (fcs);
+	return;
+    }
+    if (--fcs->ref > 0)
+	return;
+    for (i = 0; i < fcs->num; i++)
+    {
+	FcMemFree (FC_MEM_CHARLEAF, sizeof (FcCharLeaf));
+	free (FcCharSetLeaf (fcs, i));
+    }
+    if (fcs->num)
+    {
+        /* the numbers here are estimates */
+	FcMemFree (FC_MEM_CHARSET, fcs->num * sizeof (intptr_t));
+	free (FcCharSetLeaves (fcs));
+	FcMemFree (FC_MEM_CHARSET, fcs->num * sizeof (FcChar16));
+	free (FcCharSetNumbers (fcs));
+    }
+    FcMemFree (FC_MEM_CHARSET, sizeof (FcCharSet));
+    free (fcs);
+}
+
+/*
+ * Search for the leaf containing with the specified num.
+ * Return its index if it exists, otherwise return negative of
+ * the (position + 1) where it should be inserted
+ */
+
+
+static int
+FcCharSetFindLeafForward (const FcCharSet *fcs, int start, FcChar16 num)
+{
+    FcChar16		*numbers = FcCharSetNumbers(fcs);
+    FcChar16		page;
+    int			low = start;
+    int			high = fcs->num - 1;
+
+    if (!numbers)
+	return -1;
+    while (low <= high)
+    {
+	int mid = (low + high) >> 1;
+	page = numbers[mid];
+	if (page == num)
+	    return mid;
+	if (page < num)
+	    low = mid + 1;
+	else
+	    high = mid - 1;
+    }
+    if (high < 0 || (high < fcs->num && numbers[high] < num))
+	high++;
+    return -(high + 1);
+}
+
+/*
+ * Locate the leaf containing the specified char, return
+ * its index if it exists, otherwise return negative of
+ * the (position + 1) where it should be inserted
+ */
+
+static int
+FcCharSetFindLeafPos (const FcCharSet *fcs, FcChar32 ucs4)
+{
+    return FcCharSetFindLeafForward (fcs, 0, ucs4 >> 8);
+}
+
+static FcCharLeaf *
+FcCharSetFindLeaf (const FcCharSet *fcs, FcChar32 ucs4)
+{
+    int	pos = FcCharSetFindLeafPos (fcs, ucs4);
+    if (pos >= 0)
+	return FcCharSetLeaf(fcs, pos);
+    return 0;
+}
+
+#define FC_IS_ZERO_OR_POWER_OF_TWO(x) (!((x) & ((x)-1)))
+
+static FcBool
+FcCharSetPutLeaf (FcCharSet	*fcs, 
+		  FcChar32	ucs4,
+		  FcCharLeaf	*leaf, 
+		  int		pos)
+{
+    intptr_t	*leaves = FcCharSetLeaves (fcs);
+    FcChar16	*numbers = FcCharSetNumbers (fcs);
+
+    ucs4 >>= 8;
+    if (ucs4 >= 0x10000)
+	return FcFalse;
+
+    if (FC_IS_ZERO_OR_POWER_OF_TWO (fcs->num))
+    {
+      if (!fcs->num)
+      {
+        unsigned int alloced = 8;
+	leaves = malloc (alloced * sizeof (*leaves));
+	numbers = malloc (alloced * sizeof (*numbers));
+	FcMemAlloc (FC_MEM_CHARSET, alloced * sizeof (*leaves));
+	FcMemAlloc (FC_MEM_CHARSET, alloced * sizeof (*numbers));
+      }
+      else
+      {
+        unsigned int alloced = fcs->num;
+	intptr_t *new_leaves, distance;
+
+	FcMemFree (FC_MEM_CHARSET, alloced * sizeof (*leaves));
+	FcMemFree (FC_MEM_CHARSET, alloced * sizeof (*numbers));
+
+	alloced *= 2;
+	new_leaves = realloc (leaves, alloced * sizeof (*leaves));
+	numbers = realloc (numbers, alloced * sizeof (*numbers));
+
+	FcMemAlloc (FC_MEM_CHARSET, alloced * sizeof (*leaves));
+	FcMemAlloc (FC_MEM_CHARSET, alloced * sizeof (*numbers));
+
+	distance = (intptr_t) new_leaves - (intptr_t) leaves;
+	if (new_leaves && distance)
+	{
+	    int i;
+	    for (i = 0; i < fcs->num; i++)
+		new_leaves[i] -= distance;
+	}
+	leaves = new_leaves;
+      }
+
+      if (!leaves || !numbers)
+	  return FcFalse;
+
+      fcs->leaves_offset = FcPtrToOffset (fcs, leaves);
+      fcs->numbers_offset = FcPtrToOffset (fcs, numbers);
+    }
+    
+    memmove (leaves + pos + 1, leaves + pos, 
+	     (fcs->num - pos) * sizeof (*leaves));
+    memmove (numbers + pos + 1, numbers + pos,
+	     (fcs->num - pos) * sizeof (*numbers));
+    numbers[pos] = (FcChar16) ucs4;
+    leaves[pos] = FcPtrToOffset (leaves, leaf);
+    fcs->num++;
+    return FcTrue;
+}
+
+/*
+ * Locate the leaf containing the specified char, creating it
+ * if desired
+ */
+
+FcCharLeaf *
+FcCharSetFindLeafCreate (FcCharSet *fcs, FcChar32 ucs4)
+{
+    int			pos;
+    FcCharLeaf		*leaf;
+
+    pos = FcCharSetFindLeafPos (fcs, ucs4);
+    if (pos >= 0)
+	return FcCharSetLeaf(fcs, pos);
+    
+    leaf = calloc (1, sizeof (FcCharLeaf));
+    if (!leaf)
+	return 0;
+    
+    pos = -pos - 1;
+    if (!FcCharSetPutLeaf (fcs, ucs4, leaf, pos))
+    {
+	free (leaf);
+	return 0;
+    }
+    FcMemAlloc (FC_MEM_CHARLEAF, sizeof (FcCharLeaf));
+    return leaf;
+}
+
+static FcBool
+FcCharSetInsertLeaf (FcCharSet *fcs, FcChar32 ucs4, FcCharLeaf *leaf)
+{
+    int		    pos;
+
+    pos = FcCharSetFindLeafPos (fcs, ucs4);
+    if (pos >= 0)
+    {
+	FcMemFree (FC_MEM_CHARLEAF, sizeof (FcCharLeaf));
+	free (FcCharSetLeaf (fcs, pos));
+	FcCharSetLeaves(fcs)[pos] = FcPtrToOffset (FcCharSetLeaves(fcs),
+						   leaf);
+	return FcTrue;
+    }
+    pos = -pos - 1;
+    return FcCharSetPutLeaf (fcs, ucs4, leaf, pos);
+}
+
+FcBool
+FcCharSetAddChar (FcCharSet *fcs, FcChar32 ucs4)
+{
+    FcCharLeaf	*leaf;
+    FcChar32	*b;
+    
+    if (fcs->ref == FC_REF_CONSTANT)
+	return FcFalse;
+    leaf = FcCharSetFindLeafCreate (fcs, ucs4);
+    if (!leaf)
+	return FcFalse;
+    b = &leaf->map[(ucs4 & 0xff) >> 5];
+    *b |= (1 << (ucs4 & 0x1f));
+    return FcTrue;
+}
+
+/*
+ * An iterator for the leaves of a charset
+ */
+
+typedef struct _fcCharSetIter {
+    FcCharLeaf	    *leaf;
+    FcChar32	    ucs4;
+    int		    pos;
+} FcCharSetIter;
+
+/*
+ * Set iter->leaf to the leaf containing iter->ucs4 or higher
+ */
+
+static void
+FcCharSetIterSet (const FcCharSet *fcs, FcCharSetIter *iter)
+{
+    int		    pos = FcCharSetFindLeafPos (fcs, iter->ucs4);
+
+    if (pos < 0)
+    {
+	pos = -pos - 1;
+	if (pos == fcs->num)
+	{
+	    iter->ucs4 = ~0;
+	    iter->leaf = 0;
+	    return;
+	}
+        iter->ucs4 = (FcChar32) FcCharSetNumbers(fcs)[pos] << 8;
+    }
+    iter->leaf = FcCharSetLeaf(fcs, pos);
+    iter->pos = pos;
+}
+
+static void
+FcCharSetIterNext (const FcCharSet *fcs, FcCharSetIter *iter)
+{
+    int	pos = iter->pos + 1;
+    if (pos >= fcs->num)
+    {
+	iter->ucs4 = ~0;
+	iter->leaf = 0;
+    }
+    else
+    {
+	iter->ucs4 = (FcChar32) FcCharSetNumbers(fcs)[pos] << 8;
+	iter->leaf = FcCharSetLeaf(fcs, pos);
+	iter->pos = pos;
+    }
+}
+
+
+static void
+FcCharSetIterStart (const FcCharSet *fcs, FcCharSetIter *iter)
+{
+    iter->ucs4 = 0;
+    iter->pos = 0;
+    FcCharSetIterSet (fcs, iter);
+}
+
+FcCharSet *
+FcCharSetCopy (FcCharSet *src)
+{
+    if (src->ref != FC_REF_CONSTANT)
+	src->ref++;
+    else
+	FcCacheObjectReference (src);
+    return src;
+}
+
+FcBool
+FcCharSetEqual (const FcCharSet *a, const FcCharSet *b)
+{
+    FcCharSetIter   ai, bi;
+    int		    i;
+    
+    if (a == b)
+	return FcTrue;
+    for (FcCharSetIterStart (a, &ai), FcCharSetIterStart (b, &bi);
+	 ai.leaf && bi.leaf;
+	 FcCharSetIterNext (a, &ai), FcCharSetIterNext (b, &bi))
+    {
+	if (ai.ucs4 != bi.ucs4)
+	    return FcFalse;
+	for (i = 0; i < 256/32; i++)
+	    if (ai.leaf->map[i] != bi.leaf->map[i])
+		return FcFalse;
+    }
+    return ai.leaf == bi.leaf;
+}
+
+static FcBool
+FcCharSetAddLeaf (FcCharSet	*fcs,
+		  FcChar32	ucs4,
+		  FcCharLeaf	*leaf)
+{
+    FcCharLeaf   *new = FcCharSetFindLeafCreate (fcs, ucs4);
+    if (!new)
+	return FcFalse;
+    *new = *leaf;
+    return FcTrue;
+}
+
+static FcCharSet *
+FcCharSetOperate (const FcCharSet   *a,
+		  const FcCharSet   *b,
+		  FcBool	    (*overlap) (FcCharLeaf	    *result,
+						const FcCharLeaf    *al,
+						const FcCharLeaf    *bl),
+		  FcBool	aonly,
+		  FcBool	bonly)
+{
+    FcCharSet	    *fcs;
+    FcCharSetIter   ai, bi;
+
+    fcs = FcCharSetCreate ();
+    if (!fcs)
+	goto bail0;
+    FcCharSetIterStart (a, &ai);
+    FcCharSetIterStart (b, &bi);
+    while ((ai.leaf || (bonly && bi.leaf)) && (bi.leaf || (aonly && ai.leaf)))
+    {
+	if (ai.ucs4 < bi.ucs4)
+	{
+	    if (aonly)
+	    {
+		if (!FcCharSetAddLeaf (fcs, ai.ucs4, ai.leaf))
+		    goto bail1;
+		FcCharSetIterNext (a, &ai);
+	    }
+	    else
+	    {
+		ai.ucs4 = bi.ucs4;
+		FcCharSetIterSet (a, &ai);
+	    }
+	}
+	else if (bi.ucs4 < ai.ucs4 )
+	{
+	    if (bonly)
+	    {
+		if (!FcCharSetAddLeaf (fcs, bi.ucs4, bi.leaf))
+		    goto bail1;
+		FcCharSetIterNext (b, &bi);
+	    }
+	    else
+	    {
+		bi.ucs4 = ai.ucs4;
+		FcCharSetIterSet (b, &bi);
+	    }
+	}
+	else
+	{
+	    FcCharLeaf  leaf;
+
+	    if ((*overlap) (&leaf, ai.leaf, bi.leaf))
+	    {
+		if (!FcCharSetAddLeaf (fcs, ai.ucs4, &leaf))
+		    goto bail1;
+	    }
+	    FcCharSetIterNext (a, &ai);
+	    FcCharSetIterNext (b, &bi);
+	}
+    }
+    return fcs;
+bail1:
+    FcCharSetDestroy (fcs);
+bail0:
+    return 0;
+}
+
+static FcBool
+FcCharSetIntersectLeaf (FcCharLeaf *result,
+			const FcCharLeaf *al,
+			const FcCharLeaf *bl)
+{
+    int	    i;
+    FcBool  nonempty = FcFalse;
+
+    for (i = 0; i < 256/32; i++)
+	if ((result->map[i] = al->map[i] & bl->map[i]))
+	    nonempty = FcTrue;
+    return nonempty;
+}
+
+FcCharSet *
+FcCharSetIntersect (const FcCharSet *a, const FcCharSet *b)
+{
+    return FcCharSetOperate (a, b, FcCharSetIntersectLeaf, FcFalse, FcFalse);
+}
+
+static FcBool
+FcCharSetUnionLeaf (FcCharLeaf *result,
+		    const FcCharLeaf *al,
+		    const FcCharLeaf *bl)
+{
+    int	i;
+
+    for (i = 0; i < 256/32; i++)
+	result->map[i] = al->map[i] | bl->map[i];
+    return FcTrue;
+}
+
+FcCharSet *
+FcCharSetUnion (const FcCharSet *a, const FcCharSet *b)
+{
+    return FcCharSetOperate (a, b, FcCharSetUnionLeaf, FcTrue, FcTrue);
+}
+
+FcBool
+FcCharSetMerge (FcCharSet *a, const FcCharSet *b, FcBool *changed)
+{
+    int		ai = 0, bi = 0;
+    FcChar16	an, bn;
+
+    if (a->ref == FC_REF_CONSTANT) {
+	if (changed)
+	    *changed = FcFalse;
+	return FcFalse;
+    }
+
+    if (changed) {
+	*changed = !FcCharSetIsSubset(b, a);
+	if (!*changed)
+	    return FcTrue;
+    }
+
+    while (bi < b->num)
+    {
+	an = ai < a->num ? FcCharSetNumbers(a)[ai] : ~0;
+	bn = FcCharSetNumbers(b)[bi];
+
+	if (an < bn)
+	{
+	    ai = FcCharSetFindLeafForward (a, ai + 1, bn);
+	    if (ai < 0)
+		ai = -ai - 1;
+	}
+	else
+	{
+	    FcCharLeaf *bl = FcCharSetLeaf(b, bi);
+	    if (bn < an)
+	    {
+		if (!FcCharSetAddLeaf (a, bn << 8, bl))
+		    return FcFalse;
+	    }
+	    else
+	    {
+		FcCharLeaf *al = FcCharSetLeaf(a, ai);
+		FcCharSetUnionLeaf (al, al, bl);
+	    }
+
+	    ai++;
+	    bi++;
+	}
+    }
+
+    return FcTrue;
+}
+
+static FcBool
+FcCharSetSubtractLeaf (FcCharLeaf *result,
+		       const FcCharLeaf *al,
+		       const FcCharLeaf *bl)
+{
+    int	    i;
+    FcBool  nonempty = FcFalse;
+
+    for (i = 0; i < 256/32; i++)
+	if ((result->map[i] = al->map[i] & ~bl->map[i]))
+	    nonempty = FcTrue;
+    return nonempty;
+}
+
+FcCharSet *
+FcCharSetSubtract (const FcCharSet *a, const FcCharSet *b)
+{
+    return FcCharSetOperate (a, b, FcCharSetSubtractLeaf, FcTrue, FcFalse);
+}
+
+FcBool
+FcCharSetHasChar (const FcCharSet *fcs, FcChar32 ucs4)
+{
+    FcCharLeaf	*leaf = FcCharSetFindLeaf (fcs, ucs4);
+    if (!leaf)
+	return FcFalse;
+    return (leaf->map[(ucs4 & 0xff) >> 5] & (1 << (ucs4 & 0x1f))) != 0;
+}
+
+static FcChar32
+FcCharSetPopCount (FcChar32 c1)
+{
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
+    return __builtin_popcount (c1);
+#else
+    /* hackmem 169 */
+    FcChar32	c2 = (c1 >> 1) & 033333333333;
+    c2 = c1 - c2 - ((c2 >> 1) & 033333333333);
+    return (((c2 + (c2 >> 3)) & 030707070707) % 077);
+#endif
+}
+
+FcChar32
+FcCharSetIntersectCount (const FcCharSet *a, const FcCharSet *b)
+{
+    FcCharSetIter   ai, bi;
+    FcChar32	    count = 0;
+    
+    FcCharSetIterStart (a, &ai);
+    FcCharSetIterStart (b, &bi);
+    while (ai.leaf && bi.leaf)
+    {
+	if (ai.ucs4 == bi.ucs4)
+	{
+	    FcChar32	*am = ai.leaf->map;
+	    FcChar32	*bm = bi.leaf->map;
+	    int		i = 256/32;
+	    while (i--)
+		count += FcCharSetPopCount (*am++ & *bm++);
+	    FcCharSetIterNext (a, &ai);
+	} 
+	else if (ai.ucs4 < bi.ucs4)
+	{
+	    ai.ucs4 = bi.ucs4;
+	    FcCharSetIterSet (a, &ai);
+	}
+	if (bi.ucs4 < ai.ucs4)
+	{
+	    bi.ucs4 = ai.ucs4;
+	    FcCharSetIterSet (b, &bi);
+	}
+    }
+    return count;
+}
+
+FcChar32
+FcCharSetCount (const FcCharSet *a)
+{
+    FcCharSetIter   ai;
+    FcChar32	    count = 0;
+    
+    for (FcCharSetIterStart (a, &ai); ai.leaf; FcCharSetIterNext (a, &ai))
+    {
+	int		    i = 256/32;
+	FcChar32	    *am = ai.leaf->map;
+
+	while (i--)
+	    count += FcCharSetPopCount (*am++);
+    }
+    return count;
+}
+
+FcChar32
+FcCharSetSubtractCount (const FcCharSet *a, const FcCharSet *b)
+{
+    FcCharSetIter   ai, bi;
+    FcChar32	    count = 0;
+    
+    FcCharSetIterStart (a, &ai);
+    FcCharSetIterStart (b, &bi);
+    while (ai.leaf)
+    {
+	if (ai.ucs4 <= bi.ucs4)
+	{
+	    FcChar32	*am = ai.leaf->map;
+	    int		i = 256/32;
+	    if (ai.ucs4 == bi.ucs4)
+	    {
+		FcChar32	*bm = bi.leaf->map;
+		while (i--)
+		    count += FcCharSetPopCount (*am++ & ~*bm++);
+	    }
+	    else
+	    {
+		while (i--)
+		    count += FcCharSetPopCount (*am++);
+	    }
+	    FcCharSetIterNext (a, &ai);
+	}
+	else if (bi.leaf)
+	{
+	    bi.ucs4 = ai.ucs4;
+	    FcCharSetIterSet (b, &bi);
+	}
+    }
+    return count;
+}
+
+/*
+ * return FcTrue iff a is a subset of b
+ */
+FcBool
+FcCharSetIsSubset (const FcCharSet *a, const FcCharSet *b)
+{
+    int		ai, bi;
+    FcChar16	an, bn;
+    
+    if (a == b) return FcTrue;
+    bi = 0;
+    ai = 0;
+    while (ai < a->num && bi < b->num)
+    {
+	an = FcCharSetNumbers(a)[ai];
+	bn = FcCharSetNumbers(b)[bi];
+	/*
+	 * Check matching pages
+	 */
+	if (an == bn)
+	{
+	    FcChar32	*am = FcCharSetLeaf(a, ai)->map;
+	    FcChar32	*bm = FcCharSetLeaf(b, bi)->map;
+	    
+	    if (am != bm)
+	    {
+		int	i = 256/32;
+		/*
+		 * Does am have any bits not in bm?
+		 */
+		while (i--)
+		    if (*am++ & ~*bm++)
+			return FcFalse;
+	    }
+	    ai++;
+	    bi++;
+	}
+	/*
+	 * Does a have any pages not in b?
+	 */
+	else if (an < bn)
+	    return FcFalse;
+	else
+	{
+	    bi = FcCharSetFindLeafForward (b, bi + 1, an);
+	    if (bi < 0)
+		bi = -bi - 1;
+	}
+    }
+    /*
+     * did we look at every page?
+     */
+    return ai >= a->num;
+}
+
+/*
+ * These two functions efficiently walk the entire charmap for
+ * other software (like pango) that want their own copy
+ */
+
+FcChar32
+FcCharSetNextPage (const FcCharSet  *a, 
+		   FcChar32	    map[FC_CHARSET_MAP_SIZE],
+		   FcChar32	    *next)
+{
+    FcCharSetIter   ai;
+    FcChar32	    page;
+
+    ai.ucs4 = *next;
+    FcCharSetIterSet (a, &ai);
+    if (!ai.leaf)
+	return FC_CHARSET_DONE;
+    
+    /*
+     * Save current information
+     */
+    page = ai.ucs4;
+    memcpy (map, ai.leaf->map, sizeof (ai.leaf->map));
+    /*
+     * Step to next page
+     */
+    FcCharSetIterNext (a, &ai);
+    *next = ai.ucs4;
+
+    return page;
+}
+
+FcChar32
+FcCharSetFirstPage (const FcCharSet *a, 
+		    FcChar32	    map[FC_CHARSET_MAP_SIZE],
+		    FcChar32	    *next)
+{
+    *next = 0;
+    return FcCharSetNextPage (a, map, next);
+}
+
+/*
+ * old coverage API, rather hard to use correctly
+ */
+    
+FcChar32
+FcCharSetCoverage (const FcCharSet *a, FcChar32 page, FcChar32 *result)
+{
+    FcCharSetIter   ai;
+
+    ai.ucs4 = page;
+    FcCharSetIterSet (a, &ai);
+    if (!ai.leaf)
+    {
+	memset (result, '\0', 256 / 8);
+	page = 0;
+    }
+    else
+    {
+	memcpy (result, ai.leaf->map, sizeof (ai.leaf->map));
+	FcCharSetIterNext (a, &ai);
+	page = ai.ucs4;
+    }
+    return page;
+}
+
+/*
+ * ASCII representation of charsets.
+ * 
+ * Each leaf is represented as 9 32-bit values, the code of the first character followed
+ * by 8 32 bit values for the leaf itself.  Each value is encoded as 5 ASCII characters,
+ * only 85 different values are used to avoid control characters as well as the other
+ * characters used to encode font names.  85**5 > 2^32 so things work out, but
+ * it's not exactly human readable output.  As a special case, 0 is encoded as a space
+ */
+
+static const unsigned char	charToValue[256] = {
+    /*     "" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /*   "\b" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\020" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\030" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /*    " " */ 0xff,  0x00,  0xff,  0x01,  0x02,  0x03,  0x04,  0xff, 
+    /*    "(" */ 0x05,  0x06,  0x07,  0x08,  0xff,  0xff,  0x09,  0x0a, 
+    /*    "0" */ 0x0b,  0x0c,  0x0d,  0x0e,  0x0f,  0x10,  0x11,  0x12, 
+    /*    "8" */ 0x13,  0x14,  0xff,  0x15,  0x16,  0xff,  0x17,  0x18, 
+    /*    "@" */ 0x19,  0x1a,  0x1b,  0x1c,  0x1d,  0x1e,  0x1f,  0x20, 
+    /*    "H" */ 0x21,  0x22,  0x23,  0x24,  0x25,  0x26,  0x27,  0x28, 
+    /*    "P" */ 0x29,  0x2a,  0x2b,  0x2c,  0x2d,  0x2e,  0x2f,  0x30, 
+    /*    "X" */ 0x31,  0x32,  0x33,  0x34,  0xff,  0x35,  0x36,  0xff, 
+    /*    "`" */ 0xff,  0x37,  0x38,  0x39,  0x3a,  0x3b,  0x3c,  0x3d, 
+    /*    "h" */ 0x3e,  0x3f,  0x40,  0x41,  0x42,  0x43,  0x44,  0x45, 
+    /*    "p" */ 0x46,  0x47,  0x48,  0x49,  0x4a,  0x4b,  0x4c,  0x4d, 
+    /*    "x" */ 0x4e,  0x4f,  0x50,  0x51,  0x52,  0x53,  0x54,  0xff, 
+    /* "\200" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\210" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\220" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\230" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\240" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\250" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\260" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\270" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\300" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\310" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\320" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\330" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\340" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\350" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\360" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+    /* "\370" */ 0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff,  0xff, 
+};
+
+static const FcChar8 valueToChar[0x55] = {
+    /* 0x00 */ '!', '#', '$', '%', '&', '(', ')', '*',
+    /* 0x08 */ '+', '.', '/', '0', '1', '2', '3', '4',
+    /* 0x10 */ '5', '6', '7', '8', '9', ';', '<', '>',
+    /* 0x18 */ '?', '@', 'A', 'B', 'C', 'D', 'E', 'F',
+    /* 0x20 */ 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',
+    /* 0x28 */ 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
+    /* 0x30 */ 'W', 'X', 'Y', 'Z', '[', ']', '^', 'a',
+    /* 0x38 */ 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
+    /* 0x40 */ 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q',
+    /* 0x48 */ 'r', 's', 't', 'u', 'v', 'w', 'x', 'y',
+    /* 0x50 */ 'z', '{', '|', '}', '~',
+};
+
+static FcChar8 *
+FcCharSetParseValue (FcChar8 *string, FcChar32 *value)
+{
+    int		i;
+    FcChar32	v;
+    FcChar32	c;
+    
+    if (*string == ' ')
+    {
+	v = 0;
+	string++;
+    }
+    else
+    {
+	v = 0;
+	for (i = 0; i < 5; i++)
+	{
+	    if (!(c = (FcChar32) (unsigned char) *string++))
+		return 0;
+	    c = charToValue[c];
+	    if (c == 0xff)
+		return 0;
+	    v = v * 85 + c;
+	}
+    }
+    *value = v;
+    return string;
+}
+
+static FcBool
+FcCharSetUnparseValue (FcStrBuf *buf, FcChar32 value)
+{
+    int	    i;
+    if (value == 0)
+    {
+	return FcStrBufChar (buf, ' ');
+    }
+    else
+    {
+	FcChar8	string[6];
+	FcChar8	*s = string + 5;
+	string[5] = '\0';
+	for (i = 0; i < 5; i++)
+	{
+	    *--s = valueToChar[value % 85];
+	    value /= 85;
+	}
+	for (i = 0; i < 5; i++)
+	    if (!FcStrBufChar (buf, *s++))
+		return FcFalse;
+    }
+    return FcTrue;
+}
+
+FcCharSet *
+FcNameParseCharSet (FcChar8 *string)
+{
+    FcCharSet	*c;
+    FcChar32	ucs4;
+    FcCharLeaf	*leaf;
+    FcCharLeaf	temp;
+    FcChar32	bits;
+    int		i;
+
+    c = FcCharSetCreate ();
+    if (!c)
+	goto bail0;
+    while (*string)
+    {
+	string = FcCharSetParseValue (string, &ucs4);
+	if (!string)
+	    goto bail1;
+	bits = 0;
+	for (i = 0; i < 256/32; i++)
+	{
+	    string = FcCharSetParseValue (string, &temp.map[i]);
+	    if (!string)
+		goto bail1;
+	    bits |= temp.map[i];
+	}
+	if (bits)
+	{
+	    leaf = malloc (sizeof (FcCharLeaf));
+	    if (!leaf)
+		goto bail1;
+	    *leaf = temp;
+	    if (!FcCharSetInsertLeaf (c, ucs4, leaf))
+		goto bail1;
+	}
+    }
+    return c;
+bail1:
+    if (c->num)
+    {
+	FcMemFree (FC_MEM_CHARSET, c->num * sizeof (FcCharLeaf *));
+	free (FcCharSetLeaves (c));
+    }
+    if (c->num)
+    {
+	FcMemFree (FC_MEM_CHARSET, c->num * sizeof (FcChar16));
+	free (FcCharSetNumbers (c));
+    }
+    FcMemFree (FC_MEM_CHARSET, sizeof (FcCharSet));
+    free (c);
+bail0:
+    return NULL;
+}
+
+FcBool
+FcNameUnparseCharSet (FcStrBuf *buf, const FcCharSet *c)
+{
+    FcCharSetIter   ci;
+    int		    i;
+#ifdef CHECK
+    int		    len = buf->len;
+#endif
+
+    for (FcCharSetIterStart (c, &ci);
+	 ci.leaf;
+	 FcCharSetIterNext (c, &ci))
+    {
+	if (!FcCharSetUnparseValue (buf, ci.ucs4))
+	    return FcFalse;
+	for (i = 0; i < 256/32; i++)
+	    if (!FcCharSetUnparseValue (buf, ci.leaf->map[i]))
+		return FcFalse;
+    }
+#ifdef CHECK
+    {
+	FcCharSet	*check;
+	FcChar32	missing;
+	FcCharSetIter	ci, checki;
+	
+	/* null terminate for parser */
+	FcStrBufChar (buf, '\0');
+	/* step back over null for life after test */
+	buf->len--;
+	check = FcNameParseCharSet (buf->buf + len);
+	FcCharSetIterStart (c, &ci);
+	FcCharSetIterStart (check, &checki);
+	while (ci.leaf || checki.leaf)
+	{
+	    if (ci.ucs4 < checki.ucs4)
+	    {
+		printf ("Missing leaf node at 0x%x\n", ci.ucs4);
+		FcCharSetIterNext (c, &ci);
+	    }
+	    else if (checki.ucs4 < ci.ucs4)
+	    {
+		printf ("Extra leaf node at 0x%x\n", checki.ucs4);
+		FcCharSetIterNext (check, &checki);
+	    }
+	    else
+	    {
+		int	    i = 256/32;
+		FcChar32    *cm = ci.leaf->map;
+		FcChar32    *checkm = checki.leaf->map;
+
+		for (i = 0; i < 256; i += 32)
+		{
+		    if (*cm != *checkm)
+			printf ("Mismatching sets at 0x%08x: 0x%08x != 0x%08x\n",
+				ci.ucs4 + i, *cm, *checkm);
+		    cm++;
+		    checkm++;
+		}
+		FcCharSetIterNext (c, &ci);
+		FcCharSetIterNext (check, &checki);
+	    }
+	}
+	if ((missing = FcCharSetSubtractCount (c, check)))
+	    printf ("%d missing in reparsed result\n", missing);
+	if ((missing = FcCharSetSubtractCount (check, c)))
+	    printf ("%d extra in reparsed result\n", missing);
+	FcCharSetDestroy (check);
+    }
+#endif
+    
+    return FcTrue;
+}
+
+typedef struct _FcCharLeafEnt FcCharLeafEnt;
+
+struct _FcCharLeafEnt {
+    FcCharLeafEnt   *next;
+    FcChar32	    hash;
+    FcCharLeaf	    leaf;
+};
+
+#define FC_CHAR_LEAF_BLOCK	(4096 / sizeof (FcCharLeafEnt))
+#define FC_CHAR_LEAF_HASH_SIZE	257
+
+typedef struct _FcCharSetEnt FcCharSetEnt;
+
+struct _FcCharSetEnt {
+    FcCharSetEnt	*next;
+    FcChar32		hash;
+    FcCharSet		set;
+};
+
+typedef struct _FcCharSetOrigEnt FcCharSetOrigEnt;
+
+struct _FcCharSetOrigEnt {
+    FcCharSetOrigEnt	*next;
+    const FcCharSet    	*orig;
+    const FcCharSet    	*frozen;
+};
+
+#define FC_CHAR_SET_HASH_SIZE    67
+
+struct _FcCharSetFreezer {
+    FcCharLeafEnt   *leaf_hash_table[FC_CHAR_LEAF_HASH_SIZE];
+    FcCharLeafEnt   **leaf_blocks;
+    int		    leaf_block_count;
+    FcCharSetEnt    *set_hash_table[FC_CHAR_SET_HASH_SIZE];
+    FcCharSetOrigEnt	*orig_hash_table[FC_CHAR_SET_HASH_SIZE];
+    FcCharLeafEnt   *current_block;
+    int		    leaf_remain;
+    int		    leaves_seen;
+    int		    charsets_seen;
+    int		    leaves_allocated;
+    int		    charsets_allocated;
+};
+
+static FcCharLeafEnt *
+FcCharLeafEntCreate (FcCharSetFreezer *freezer)
+{
+    if (!freezer->leaf_remain)
+    {
+	FcCharLeafEnt **newBlocks;
+
+	freezer->leaf_block_count++;
+	newBlocks = realloc (freezer->leaf_blocks, freezer->leaf_block_count * sizeof (FcCharLeafEnt *));
+	if (!newBlocks)
+	    return 0;
+	freezer->leaf_blocks = newBlocks;
+	freezer->current_block = freezer->leaf_blocks[freezer->leaf_block_count-1] = malloc (FC_CHAR_LEAF_BLOCK * sizeof (FcCharLeafEnt));
+	if (!freezer->current_block)
+	    return 0;
+	FcMemAlloc (FC_MEM_CHARLEAF, FC_CHAR_LEAF_BLOCK * sizeof (FcCharLeafEnt));
+	freezer->leaf_remain = FC_CHAR_LEAF_BLOCK;
+    }
+    freezer->leaf_remain--;
+    freezer->leaves_allocated++;
+    return freezer->current_block++;
+}
+
+static FcChar32
+FcCharLeafHash (FcCharLeaf *leaf)
+{
+    FcChar32	hash = 0;
+    int		i;
+
+    for (i = 0; i < 256/32; i++)
+	hash = ((hash << 1) | (hash >> 31)) ^ leaf->map[i];
+    return hash;
+}
+
+static FcCharLeaf *
+FcCharSetFreezeLeaf (FcCharSetFreezer *freezer, FcCharLeaf *leaf)
+{
+    FcChar32			hash = FcCharLeafHash (leaf);
+    FcCharLeafEnt		**bucket = &freezer->leaf_hash_table[hash % FC_CHAR_LEAF_HASH_SIZE];
+    FcCharLeafEnt		*ent;
+    
+    for (ent = *bucket; ent; ent = ent->next)
+    {
+	if (ent->hash == hash && !memcmp (&ent->leaf, leaf, sizeof (FcCharLeaf)))
+	    return &ent->leaf;
+    }
+
+    ent = FcCharLeafEntCreate(freezer);
+    if (!ent)
+	return 0;
+    ent->leaf = *leaf;
+    ent->hash = hash;
+    ent->next = *bucket;
+    *bucket = ent;
+    return &ent->leaf;
+}
+
+static FcChar32
+FcCharSetHash (FcCharSet *fcs)
+{
+    FcChar32	hash = 0;
+    int		i;
+
+    /* hash in leaves */
+    for (i = 0; i < fcs->num; i++)
+	hash = ((hash << 1) | (hash >> 31)) ^ FcCharLeafHash (FcCharSetLeaf(fcs,i));
+    /* hash in numbers */
+    for (i = 0; i < fcs->num; i++)
+	hash = ((hash << 1) | (hash >> 31)) ^ *FcCharSetNumbers(fcs);
+    return hash;
+}
+
+static FcBool
+FcCharSetFreezeOrig (FcCharSetFreezer *freezer, const FcCharSet *orig, const FcCharSet *frozen)
+{
+    FcCharSetOrigEnt	**bucket = &freezer->orig_hash_table[((uintptr_t) orig) & FC_CHAR_SET_HASH_SIZE];
+    FcCharSetOrigEnt	*ent;
+    
+    ent = malloc (sizeof (FcCharSetOrigEnt));
+    if (!ent)
+	return FcFalse;
+    ent->orig = orig;
+    ent->frozen = frozen;
+    ent->next = *bucket;
+    *bucket = ent;
+    return FcTrue;
+}
+
+static FcCharSet *
+FcCharSetFreezeBase (FcCharSetFreezer *freezer, FcCharSet *fcs, const FcCharSet *orig)
+{
+    FcChar32		hash = FcCharSetHash (fcs);
+    FcCharSetEnt	**bucket = &freezer->set_hash_table[hash % FC_CHAR_SET_HASH_SIZE];
+    FcCharSetEnt	*ent;
+    int			size;
+    int			i;
+
+    for (ent = *bucket; ent; ent = ent->next)
+    {
+	if (ent->hash == hash &&
+	    ent->set.num == fcs->num &&
+	    !memcmp (FcCharSetNumbers(&ent->set), 
+		     FcCharSetNumbers(fcs),
+		     fcs->num * sizeof (FcChar16)))
+	{
+	    FcBool ok = FcTrue;
+	    int i;
+
+	    for (i = 0; i < fcs->num; i++)
+		if (FcCharSetLeaf(&ent->set, i) != FcCharSetLeaf(fcs, i))
+		    ok = FcFalse;
+	    if (ok)
+		return &ent->set;
+	}
+    }
+
+    size = (sizeof (FcCharSetEnt) +
+	    fcs->num * sizeof (FcCharLeaf *) +
+	    fcs->num * sizeof (FcChar16));
+    ent = malloc (size);
+    if (!ent)
+	return 0;
+    FcMemAlloc (FC_MEM_CHARSET, size);
+    
+    freezer->charsets_allocated++;
+    
+    ent->set.ref = FC_REF_CONSTANT;
+    ent->set.num = fcs->num;
+    if (fcs->num)
+    {
+	intptr_t    *ent_leaves;
+
+	ent->set.leaves_offset = sizeof (ent->set);
+	ent->set.numbers_offset = (ent->set.leaves_offset +
+				   fcs->num * sizeof (intptr_t));
+    
+	ent_leaves = FcCharSetLeaves (&ent->set);
+	for (i = 0; i < fcs->num; i++)
+	    ent_leaves[i] = FcPtrToOffset (ent_leaves,
+					   FcCharSetLeaf (fcs, i));
+	memcpy (FcCharSetNumbers (&ent->set), 
+		FcCharSetNumbers (fcs), 
+		fcs->num * sizeof (FcChar16));
+    }
+    else
+    {
+	ent->set.leaves_offset = 0;
+	ent->set.numbers_offset = 0;
+    }
+
+    ent->hash = hash;
+    ent->next = *bucket;
+    *bucket = ent;
+
+    return &ent->set;
+}
+
+static const FcCharSet *
+FcCharSetFindFrozen (FcCharSetFreezer *freezer, const FcCharSet *orig)
+{
+    FcCharSetOrigEnt    **bucket = &freezer->orig_hash_table[((uintptr_t) orig) & FC_CHAR_SET_HASH_SIZE];
+    FcCharSetOrigEnt	*ent;
+    
+    for (ent = *bucket; ent; ent = ent->next)
+	if (ent->orig == orig)
+	    return ent->frozen;
+    return NULL;
+}
+
+const FcCharSet *
+FcCharSetFreeze (FcCharSetFreezer *freezer, const FcCharSet *fcs)
+{
+    FcCharSet	    *b;
+    const FcCharSet *n = 0;
+    FcCharLeaf	    *l;
+    int		    i;
+
+    b = FcCharSetCreate ();
+    if (!b)
+	goto bail0;
+    for (i = 0; i < fcs->num; i++)
+    {
+	l = FcCharSetFreezeLeaf (freezer, FcCharSetLeaf(fcs, i));
+	if (!l)
+	    goto bail1;
+	if (!FcCharSetInsertLeaf (b, FcCharSetNumbers(fcs)[i] << 8, l))
+	    goto bail1;
+    }
+    n = FcCharSetFreezeBase (freezer, b, fcs);
+    if (!FcCharSetFreezeOrig (freezer, fcs, n))
+    {
+	n = NULL;
+	goto bail1;
+    }
+    freezer->charsets_seen++;
+    freezer->leaves_seen += fcs->num;
+bail1:
+    if (b->num)
+    {
+	FcMemFree (FC_MEM_CHARSET, b->num * sizeof (FcCharLeaf *));
+	free (FcCharSetLeaves (b));
+    }
+    if (b->num)
+    {
+	FcMemFree (FC_MEM_CHARSET, b->num * sizeof (FcChar16));
+	free (FcCharSetNumbers (b));
+    }
+    FcMemFree (FC_MEM_CHARSET, sizeof (FcCharSet));
+    free (b);
+bail0:
+    return n;
+}
+
+FcCharSetFreezer *
+FcCharSetFreezerCreate (void)
+{
+    FcCharSetFreezer	*freezer;
+
+    freezer = calloc (1, sizeof (FcCharSetFreezer));
+    return freezer;
+}
+
+void
+FcCharSetFreezerDestroy (FcCharSetFreezer *freezer)
+{
+    int i;
+
+    if (FcDebug() & FC_DBG_CACHE)
+    {
+	printf ("\ncharsets %d -> %d leaves %d -> %d\n",
+		freezer->charsets_seen, freezer->charsets_allocated,
+		freezer->leaves_seen, freezer->leaves_allocated);
+    }
+    for (i = 0; i < FC_CHAR_SET_HASH_SIZE; i++)
+    {
+	FcCharSetEnt	*ent, *next;
+	for (ent = freezer->set_hash_table[i]; ent; ent = next)
+	{
+	    next = ent->next;
+	    FcMemFree (FC_MEM_CHARSET, (sizeof (FcCharSetEnt) +
+					ent->set.num * sizeof (FcCharLeaf *) +
+					ent->set.num * sizeof (FcChar16)));
+	    free (ent);
+	}
+    }
+
+    for (i = 0; i < FC_CHAR_SET_HASH_SIZE; i++)
+    {
+	FcCharSetOrigEnt	*ent, *next;
+	for (ent = freezer->orig_hash_table[i]; ent; ent = next)
+	{
+	    next = ent->next;
+	    free (ent);
+	}
+    }
+
+    for (i = 0; i < freezer->leaf_block_count; i++)
+    {
+	free (freezer->leaf_blocks[i]);
+	FcMemFree (FC_MEM_CHARLEAF, FC_CHAR_LEAF_BLOCK * sizeof (FcCharLeafEnt));
+    }
+
+    free (freezer->leaf_blocks);
+    free (freezer);
+}
+
+FcBool
+FcCharSetSerializeAlloc (FcSerialize *serialize, const FcCharSet *cs)
+{
+    intptr_t	    *leaves;
+    FcChar16	    *numbers;
+    int		    i;
+    
+    if (cs->ref != FC_REF_CONSTANT)
+    {
+	if (!serialize->cs_freezer)
+	{
+	    serialize->cs_freezer = FcCharSetFreezerCreate ();
+	    if (!serialize->cs_freezer)
+		return FcFalse;
+	}
+	if (FcCharSetFindFrozen (serialize->cs_freezer, cs))
+	    return FcTrue;
+    
+        cs = FcCharSetFreeze (serialize->cs_freezer, cs);
+    }
+    
+    leaves = FcCharSetLeaves (cs);
+    numbers = FcCharSetNumbers (cs);
+    
+    if (!FcSerializeAlloc (serialize, cs, sizeof (FcCharSet)))
+	return FcFalse;
+    if (!FcSerializeAlloc (serialize, leaves, cs->num * sizeof (intptr_t)))
+	return FcFalse;
+    if (!FcSerializeAlloc (serialize, numbers, cs->num * sizeof (FcChar16)))
+	return FcFalse;
+    for (i = 0; i < cs->num; i++)
+	if (!FcSerializeAlloc (serialize, FcCharSetLeaf(cs, i),
+			       sizeof (FcCharLeaf)))
+	    return FcFalse;
+    return FcTrue;
+}
+    
+FcCharSet *
+FcCharSetSerialize(FcSerialize *serialize, const FcCharSet *cs)
+{
+    FcCharSet	*cs_serialized;
+    intptr_t	*leaves, *leaves_serialized;
+    FcChar16	*numbers, *numbers_serialized;
+    FcCharLeaf	*leaf, *leaf_serialized;
+    int		i;
+
+    if (cs->ref != FC_REF_CONSTANT && serialize->cs_freezer)
+    {
+	cs = FcCharSetFindFrozen (serialize->cs_freezer, cs);
+	if (!cs)
+	    return NULL;
+    }
+		    
+    cs_serialized = FcSerializePtr (serialize, cs);
+    if (!cs_serialized)
+	return NULL;
+    
+    cs_serialized->ref = FC_REF_CONSTANT;
+    cs_serialized->num = cs->num;
+
+    if (cs->num)
+    {
+	leaves = FcCharSetLeaves (cs);
+	leaves_serialized = FcSerializePtr (serialize, leaves);
+	if (!leaves_serialized)
+	    return NULL;
+    
+	cs_serialized->leaves_offset = FcPtrToOffset (cs_serialized,
+						      leaves_serialized);
+	
+	numbers = FcCharSetNumbers (cs);
+	numbers_serialized = FcSerializePtr (serialize, numbers);
+	if (!numbers)
+	    return NULL;
+    
+	cs_serialized->numbers_offset = FcPtrToOffset (cs_serialized,
+						       numbers_serialized);
+    
+	for (i = 0; i < cs->num; i++)
+	{
+	    leaf = FcCharSetLeaf (cs, i);
+	    leaf_serialized = FcSerializePtr (serialize, leaf);
+	    if (!leaf_serialized)
+		return NULL;
+	    *leaf_serialized = *leaf;
+	    leaves_serialized[i] = FcPtrToOffset (leaves_serialized, 
+						  leaf_serialized);
+	    numbers_serialized[i] = numbers[i];
+	}
+    }
+    else
+    {
+	cs_serialized->leaves_offset = 0;
+	cs_serialized->numbers_offset = 0;
+    }
+    
+    return cs_serialized;
+}
+#define __fccharset__
+#include "fcaliastail.h"
+#undef __fccharset__