From aae6f7d48744a25899cac28d47458f394defa02a Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Tue, 19 Feb 2002 07:50:44 +0000
Subject: [PATCH] Eliminate const in FcPatternGetString; too hard. Add
 FcCharSetCoverage to     enumarate Unicode coverage efficiently

---
 fontconfig/fontconfig.h |  7 +++++--
 src/fccache.c           |  4 ++--
 src/fccharset.c         | 23 ++++++++++++++++++++++-
 src/fcpat.c             |  6 +++---
 4 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/fontconfig/fontconfig.h b/fontconfig/fontconfig.h
index 86b9c79..05399c2 100644
--- a/fontconfig/fontconfig.h
+++ b/fontconfig/fontconfig.h
@@ -1,5 +1,5 @@
 /*
- * $XFree86: $
+ * $XFree86: xc/lib/fontconfig/fontconfig/fontconfig.h,v 1.2 2002/02/15 06:01:27 keithp Exp $
  *
  * Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc.
  *
@@ -329,6 +329,9 @@ FcCharSetIntersectCount (const FcCharSet *a, const FcCharSet *b);
 FcChar32
 FcCharSetSubtractCount (const FcCharSet *a, const FcCharSet *b);
 
+FcChar32
+FcCharSetCoverage (const FcCharSet *a, FcChar32 page, FcChar32 *result);
+
 /* fcdbg.c */
 void
 FcPatternPrint (FcPattern *p);
@@ -505,7 +508,7 @@ FcResult
 FcPatternGetDouble (FcPattern *p, const char *object, int n, double *d);
 
 FcResult
-FcPatternGetString (FcPattern *p, const char *object, int n, FcChar8 const** s);
+FcPatternGetString (FcPattern *p, const char *object, int n, FcChar8 ** s);
 
 FcResult
 FcPatternGetMatrix (FcPattern *p, const char *object, int n, FcMatrix **s);
diff --git a/src/fccache.c b/src/fccache.c
index 4777146..aba1284 100644
--- a/src/fccache.c
+++ b/src/fccache.c
@@ -1,5 +1,5 @@
 /*
- * $XFree86: $
+ * $XFree86: xc/lib/fontconfig/src/fccache.c,v 1.2 2002/02/15 06:01:27 keithp Exp $
  *
  * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
  *
@@ -590,7 +590,7 @@ FcFileCacheWriteDir (FcFontSet *set, const FcChar8 *cache_file)
     for (n = 0; n < set->nfont; n++)
     {
 	font = set->fonts[n];
-	if (FcPatternGetString (font, FC_FILE, 0, &file) != FcResultMatch)
+	if (FcPatternGetString (font, FC_FILE, 0, (FcChar8 **) &file) != FcResultMatch)
 	    goto bail1;
 	base = (FcChar8 *) strrchr ((char *) file, '/');
 	if (base)
diff --git a/src/fccharset.c b/src/fccharset.c
index 4652309..c764c43 100644
--- a/src/fccharset.c
+++ b/src/fccharset.c
@@ -1,5 +1,5 @@
 /*
- * $XFree86: xc/lib/fontconfig/src/fccharset.c,v 1.2 2002/02/15 06:01:28 keithp Exp $
+ * $XFree86: xc/lib/fontconfig/src/fccharset.c,v 1.3 2002/02/18 22:29:28 keithp Exp $
  *
  * Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc.
  *
@@ -557,6 +557,27 @@ FcCharSetSubtractCount (const FcCharSet *a, const FcCharSet *b)
     return count;
 }
 
+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.
  * 
diff --git a/src/fcpat.c b/src/fcpat.c
index 88bca91..55b1e71 100644
--- a/src/fcpat.c
+++ b/src/fcpat.c
@@ -1,5 +1,5 @@
 /*
- * $XFree86: $
+ * $XFree86: xc/lib/fontconfig/src/fcpat.c,v 1.2 2002/02/15 06:01:28 keithp Exp $
  *
  * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
  *
@@ -384,7 +384,7 @@ FcPatternGetDouble (FcPattern *p, const char *object, int id, double *d)
 }
 
 FcResult
-FcPatternGetString (FcPattern *p, const char *object, int id, FcChar8 const ** s)
+FcPatternGetString (FcPattern *p, const char *object, int id, FcChar8 ** s)
 {
     FcValue	v;
     FcResult	r;
@@ -394,7 +394,7 @@ FcPatternGetString (FcPattern *p, const char *object, int id, FcChar8 const ** s
 	return r;
     if (v.type != FcTypeString)
         return FcResultTypeMismatch;
-    *s = v.u.s;
+    *s = (FcChar8 *) v.u.s;
     return FcResultMatch;
 }
 
-- 
2.39.2