Add copyright and description banners to the xps and svg code.

Bug 690008.

git-svn-id: http://svn.ghostscript.com/ghostscript/trunk@9011 a1074d23-0009-0410-80fe-cf8c14f379e6

29 files changed, 462 insertions, 54 deletions

diff --git a/xps/ghostxps.h b/xps/ghostxps.h
index f6939db86..99ff8458d 100644
--- a/xps/ghostxps.h
+++ b/xps/ghostxps.h
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* combined internal header for the XPS interpreter */
+
 #include "memory_.h"
 #include "math_.h"
 
diff --git a/xps/xps.mak b/xps/xps.mak
index 21b384fbe..77a954b50 100644
--- a/xps/xps.mak
+++ b/xps/xps.mak
@@ -1,3 +1,17 @@
+# Copyright (C) 2006-2008 Artifex Software, Inc.
+# All Rights Reserved.
+#
+# This software is provided AS-IS with no warranty, either express or
+# implied.
+#
+# This software is distributed under license and may not be copied, modified
+# or distributed except as expressly authorized under the terms of that
+# license.  Refer to licensing information at http://www.artifex.com/
+# or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+# San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+# 
+# Platform-independent makefile for the XPS interpreter
+
 XPSSRC      = $(XPSSRCDIR)$(D)
 XPSGEN      = $(XPSGENDIR)$(D)
 XPSOBJ      = $(XPSOBJDIR)$(D)
diff --git a/xps/xps_gcc.mak b/xps/xps_gcc.mak
index 60583b09c..794c775c8 100644
--- a/xps/xps_gcc.mak
+++ b/xps/xps_gcc.mak
@@ -1,3 +1,17 @@
+# Copyright (C) 2006-2008 Artifex Software, Inc.
+# All Rights Reserved.
+#
+# This software is provided AS-IS with no warranty, either express or
+# implied.
+#
+# This software is distributed under license and may not be copied, modified
+# or distributed except as expressly authorized under the terms of that
+# license.  Refer to licensing information at http://www.artifex.com/
+# or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+# San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+#
+# GNU makefile for the XPS interpreter
+
 # The "?=" style of this makefile is designed to facilitate "deriving"
 # your own make file from it by setting your own custom options, then include'ing
 # this file. In its current form, this file will compile using default options
diff --git a/xps/xps_msvc.mak b/xps/xps_msvc.mak
index b362b1738..ef99ad1d5 100644
--- a/xps/xps_msvc.mak
+++ b/xps/xps_msvc.mak
@@ -1,3 +1,17 @@
+# Copyright (C) 2006-2008 Artifex Software, Inc.
+# All Rights Reserved.
+#
+# This software is provided AS-IS with no warranty, either express or
+# implied.
+#
+# This software is distributed under license and may not be copied, modified
+# or distributed except as expressly authorized under the terms of that
+# license.  Refer to licensing information at http://www.artifex.com/
+# or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+# San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+# 
+# 'nmake' build file for the XPS interpreter
+
 # Define the name of this makefile.
 MAKEFILE= $(MAKEFILE) ..\xps\xps_msvc.mak
 
@@ -129,4 +143,4 @@ GX_COLOR_INDEX_DEFINE=-DGX_COLOR_INDEX_TYPE="unsigned long long"
 # Subsystems
 # this is already in pcl6_gcc.mak
 #include $(XPSSRCDIR)\xps.mak
-!include $(PSSRCDIR)\expat.mak
\ No newline at end of file
+!include $(PSSRCDIR)\expat.mak
diff --git a/xps/xpscff.c b/xps/xpscff.c
index 2fdd598ac..1a2860408 100644
--- a/xps/xpscff.c
+++ b/xps/xpscff.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - cff font support */
+
 #include "ghostxps.h"
 
 /*
diff --git a/xps/xpscolor.c b/xps/xpscolor.c
index 75fa28b45..eb214760e 100644
--- a/xps/xpscolor.c
+++ b/xps/xpscolor.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - color functions */
+
 #include "ghostxps.h"
 
 #include "stream.h" /* for sizeof(stream) to work */
diff --git a/xps/xpscommon.c b/xps/xpscommon.c
index d96444dd4..afe42be7c 100644
--- a/xps/xpscommon.c
+++ b/xps/xpscommon.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - common parse functions */
+
 #include "ghostxps.h"
 
 int
diff --git a/xps/xpscrc.c b/xps/xpscrc.c
index 633f40625..b2675b7cc 100644
--- a/xps/xpscrc.c
+++ b/xps/xpscrc.c
@@ -1,6 +1,17 @@
-/*
- * Compute the CRC-32 of a data buffer
- */
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - CRC-32 implementation */
 
 #include "ghostxps.h"
 
diff --git a/xps/xpsdoc.c b/xps/xpsdoc.c
index c16440463..b62dd11ff 100644
--- a/xps/xpsdoc.c
+++ b/xps/xpsdoc.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - document parsing */
+
 #include "ghostxps.h"
 
 #include <expat.h>
@@ -408,7 +423,7 @@ xps_free_used_parts(xps_context_t *ctx)
 
     xps_part_t *part = ctx->first_part;
     while (part)
-    {       
+    {
 	xps_part_t *next = part->next;
 	xps_free_part_caches(ctx, part);
 	part = next;
@@ -681,7 +696,7 @@ xps_parse_content_relations_imp(void *zp, char *ns_name, char **atts)
     char path[1024];
     char *name;
     int i;
-    
+
     name = strchr(ns_name, ' ');
     if (name)
 	name ++;
@@ -950,4 +965,3 @@ xps_process_part(xps_context_t *ctx, xps_part_t *part)
     return 0;
 }
 
-
diff --git a/xps/xpsfont.c b/xps/xpsfont.c
index fa3e0ca3f..7b04166a1 100644
--- a/xps/xpsfont.c
+++ b/xps/xpsfont.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - general font functions */
+
 #include "ghostxps.h"
 
 /*
diff --git a/xps/xpsglyphs.c b/xps/xpsglyphs.c
index f8c6cc8ae..19ecbf9f4 100644
--- a/xps/xpsglyphs.c
+++ b/xps/xpsglyphs.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter -  */
+
 #include "ghostxps.h"
 
 #include <ctype.h>
@@ -32,12 +47,12 @@ void xps_debug_path(xps_context_t *ctx)
         switch (seg->type)
         {
         case s_start:
-	    dprintf2("%g %g moveto\n", 
+	    dprintf2("%g %g moveto\n",
                     fixed2float(seg->pt.x) * 0.001,
                     fixed2float(seg->pt.y) * 0.001);
             break;
         case s_line:
-	    dprintf2("%g %g lineto\n", 
+	    dprintf2("%g %g lineto\n",
                     fixed2float(seg->pt.x) * 0.001,
                     fixed2float(seg->pt.y) * 0.001);
             break;
@@ -46,7 +61,7 @@ void xps_debug_path(xps_context_t *ctx)
             break;
         case s_curve:
             cseg = (curve_segment*)seg;
-	    dprintf6("%g %g %g %g %g %g curveto\n", 
+	    dprintf6("%g %g %g %g %g %g curveto\n",
                     fixed2float(cseg->p1.x) * 0.001,
                     fixed2float(cseg->p1.y) * 0.001,
                     fixed2float(cseg->p2.x) * 0.001,
@@ -234,18 +249,18 @@ int xps_flush_text_buffer(xps_context_t *ctx, xps_font_t *font,
  *
  * Indices syntax:
 
- GlyphIndices   = GlyphMapping ( ";" GlyphMapping ) 
- GlyphMapping   = ( [ClusterMapping] GlyphIndex ) [GlyphMetrics] 
- ClusterMapping = "(" ClusterCodeUnitCount [":" ClusterGlyphCount] ")" 
- ClusterCodeUnitCount = * DIGIT 
- ClusterGlyphCount    = * DIGIT 
- GlyphIndex     = * DIGIT 
- GlyphMetrics   = "," AdvanceWidth ["," uOffset ["," vOffset]] 
- AdvanceWidth   = ["+"] RealNum 
- uOffset        = ["+" | "-"] RealNum 
- vOffset        = ["+" | "-"] RealNum 
- RealNum        = ((DIGIT ["." DIGIT]) | ("." DIGIT)) [Exponent] 
- Exponent       = ( ("E"|"e") ("+"|"-") DIGIT ) 
+ GlyphIndices   = GlyphMapping ( ";" GlyphMapping )
+ GlyphMapping   = ( [ClusterMapping] GlyphIndex ) [GlyphMetrics]
+ ClusterMapping = "(" ClusterCodeUnitCount [":" ClusterGlyphCount] ")"
+ ClusterCodeUnitCount = * DIGIT
+ ClusterGlyphCount    = * DIGIT
+ GlyphIndex     = * DIGIT
+ GlyphMetrics   = "," AdvanceWidth ["," uOffset ["," vOffset]]
+ AdvanceWidth   = ["+"] RealNum
+ uOffset        = ["+" | "-"] RealNum
+ vOffset        = ["+" | "-"] RealNum
+ RealNum        = ((DIGIT ["." DIGIT]) | ("." DIGIT)) [Exponent]
+ Exponent       = ( ("E"|"e") ("+"|"-") DIGIT )
 
  */
 
diff --git a/xps/xpsgradient.c b/xps/xpsgradient.c
index 9bcc9cdc3..acbafee05 100644
--- a/xps/xpsgradient.c
+++ b/xps/xpsgradient.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - gradient support */
+
 #include "ghostxps.h"
 
 #include "../icclib/icc.h"
diff --git a/xps/xpshdp.c b/xps/xpshdp.c
index dcfa9f0ee..33cc2aeb0 100644
--- a/xps/xpshdp.c
+++ b/xps/xpshdp.c
@@ -1,8 +1,23 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - HD-Photo support */
+
 #include "ghostxps.h"
 
 /* HD-Photo decoder should go here. */
 
-int 
+int
 xps_decode_hdphoto(gs_memory_t *mem, byte *buf, int len, xps_image_t *image)
 {
     return gs_throw(-1, "HD-Photo codec is not available");
diff --git a/xps/xpsimage.c b/xps/xpsimage.c
index a8b3518ad..36795010a 100644
--- a/xps/xpsimage.c
+++ b/xps/xpsimage.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - image support */
+
 #include "ghostxps.h"
 
 static void
diff --git a/xps/xpsjpeg.c b/xps/xpsjpeg.c
index 55b9c99e2..07df77349 100644
--- a/xps/xpsjpeg.c
+++ b/xps/xpsjpeg.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - JPEG image support */
+
 #include "ghostxps.h"
 
 #include "stream.h"
diff --git a/xps/xpsmem.c b/xps/xpsmem.c
index df79ceb3f..fa34f0c08 100644
--- a/xps/xpsmem.c
+++ b/xps/xpsmem.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - string manipulation functions */
+
 #include "ghostxps.h"
 
 static inline int
diff --git a/xps/xpsopacity.c b/xps/xpsopacity.c
index 59613bcb0..0b83344b5 100644
--- a/xps/xpsopacity.c
+++ b/xps/xpsopacity.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - transparency support */
+
 #include "ghostxps.h"
 
 int
diff --git a/xps/xpspage.c b/xps/xpspage.c
index e76c4d10b..19df52b8d 100644
--- a/xps/xpspage.c
+++ b/xps/xpspage.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - page parsing */
+
 #include "ghostxps.h"
 
 int xps_parse_canvas(xps_context_t *ctx, xps_resource_t *dict, xps_item_t *root)
@@ -139,7 +154,7 @@ xps_parse_fixed_page(xps_context_t *ctx, xps_part_t *part)
 
 	code = param_write_float_array((gs_param_list *)&list, ".MediaSize", &fa);
 	if ( code >= 0 )
-	{ 
+	{
 	    gs_c_param_list_read(&list);
 	    code = gs_putdeviceparams(dev, (gs_param_list *)&list);
 	}
diff --git a/xps/xpspath.c b/xps/xpspath.c
index 5d33e0ec2..ecbbf6e94 100644
--- a/xps/xpspath.c
+++ b/xps/xpspath.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - path (vector drawing) support */
+
 #include "ghostxps.h"
 
 static void
diff --git a/xps/xpspng.c b/xps/xpspng.c
index b464a51fe..b039952d5 100644
--- a/xps/xpspng.c
+++ b/xps/xpspng.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - PNG image support */
+
 #include "ghostxps.h"
 
 #include "stream.h"
diff --git a/xps/xpsresource.c b/xps/xpsresource.c
index f5858f86f..7c8f8d747 100644
--- a/xps/xpsresource.c
+++ b/xps/xpsresource.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - resource functions */
+
 #include "ghostxps.h"
 
 int
diff --git a/xps/xpstiff.c b/xps/xpstiff.c
index a1ffcc45f..1412be918 100644
--- a/xps/xpstiff.c
+++ b/xps/xpstiff.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - TIFF image support */
+
 #include "ghostxps.h"
 
 #include "stream.h"
@@ -774,7 +789,7 @@ xps_read_tiff_tag_value(unsigned *p, xps_tiff_t *tiff, unsigned type, unsigned o
     }
 }
 
-static int 
+static int
 xps_read_tiff_tag(gs_memory_t *mem, xps_tiff_t *tiff, unsigned offset)
 {
     unsigned tag;
@@ -906,7 +921,7 @@ xps_swap_byte_order(byte *buf, int n)
     }
 }
 
-int 
+int
 xps_decode_tiff(gs_memory_t *mem, byte *buf, int len, xps_image_t *image)
 {
     int error;
diff --git a/xps/xpstile.c b/xps/xpstile.c
index 5a02a5db8..baca5f45f 100644
--- a/xps/xpstile.c
+++ b/xps/xpstile.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - tiles for pattern rendering */
+
 #include "ghostxps.h"
 
 /*
diff --git a/xps/xpstop.c b/xps/xpstop.c
index 715834e17..1730a816a 100644
--- a/xps/xpstop.c
+++ b/xps/xpstop.c
@@ -1,16 +1,15 @@
-/* Portions Copyright (C) 2001 artofcode LLC.
-   Portions Copyright (C) 1996, 2001 Artifex Software Inc.
-   Portions Copyright (C) 1988, 2000 Aladdin Enterprises.
-   This software is based in part on the work of the Independent JPEG Group.
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
    All Rights Reserved.
 
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
    This software is distributed under license and may not be copied, modified
    or distributed except as expressly authorized under the terms of that
-   license.  Refer to licensing information at http://www.artifex.com/ or
-   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
-   San Rafael, CA  94903, (415)492-9861, for further information. */
-
-/*$Id$*/
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
 
 /* Top-level API implementation of XML Paper Specification */
 
@@ -56,7 +55,7 @@ xps_imp_characteristics(const pl_interp_implementation_t *pimpl)
 {
     static pl_interp_characteristics_t xps_characteristics =
     {
-	"XPS",    
+	"XPS",
 	"PK", /* string to recognize XPS files */
 	"Artifex",
 	XPS_VERSION,
@@ -66,7 +65,7 @@ xps_imp_characteristics(const pl_interp_implementation_t *pimpl)
     return &xps_characteristics;
 }
 
-static int  
+static int
 xps_imp_allocate_interp(pl_interp_t **ppinterp,
 	const pl_interp_implementation_t *pimpl,
 	gs_memory_t *pmem)
@@ -212,7 +211,7 @@ cleanup_setdevice:
     return code;
 }
 
-static int   
+static int
 xps_imp_get_device_memory(pl_interp_instance_t *pinstance, gs_memory_t **ppmem)
 {
     /* huh? we do nothing here */
@@ -223,7 +222,7 @@ xps_imp_get_device_memory(pl_interp_instance_t *pinstance, gs_memory_t **ppmem)
 static int
 xps_imp_process(pl_interp_instance_t *pinstance, stream_cursor_read *pcursor)
 {
-    xps_interp_instance_t *instance = (xps_interp_instance_t *)pinstance;    
+    xps_interp_instance_t *instance = (xps_interp_instance_t *)pinstance;
     xps_context_t *ctx = instance->ctx;
     return xps_process_data(ctx, pcursor);
 }
@@ -422,7 +421,7 @@ const pl_interp_implementation_t xps_implementation =
     xps_imp_get_device_memory,
 };
 
-/* 
+/*
  * End-of-page function called by XPS parser.
  */
 int
@@ -448,7 +447,7 @@ xps_show_page(xps_context_t *ctx, int num_copies, int flush)
     if (code < 0)
         return code;
 
-    /* do post-page action */ 
+    /* do post-page action */
     if (instance->post_page_action)
     {
 	code = instance->post_page_action(pinstance, instance->post_page_closure);
@@ -530,5 +529,3 @@ xps_install_halftone(xps_context_t *ctx, gx_device *pdevice)
     return 0;
 }
 
-
-
diff --git a/xps/xpsttf.c b/xps/xpsttf.c
index 275dccd07..cfac65349 100644
--- a/xps/xpsttf.c
+++ b/xps/xpsttf.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - truetype font support */
+
 #include "ghostxps.h"
 
 #include <gxfont.h>
@@ -132,7 +147,7 @@ xps_true_callback_glyph_name(gs_font *pfont, gs_glyph glyph, gs_const_string *ps
 	}
 	else
 	{
-	    return gs_throw1(-1, "glyph index %d out of range", glyph); 
+	    return gs_throw1(-1, "glyph index %d out of range", glyph);
 	}
     }
 
diff --git a/xps/xpsutf.c b/xps/xpsutf.c
index fa972942a..76af7a653 100644
--- a/xps/xpsutf.c
+++ b/xps/xpsutf.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - unicode text functions */
+
 #include "ghostxps.h"
 
 /*
@@ -49,6 +64,6 @@ int xps_utf8_to_ucs(int *p, const char *ss, int n)
 
 bad:
     *p = 0x80;
-    return 1; 
+    return 1;
 }
 
diff --git a/xps/xpsvisual.c b/xps/xpsvisual.c
index 3d42df57d..45f245138 100644
--- a/xps/xpsvisual.c
+++ b/xps/xpsvisual.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - visual brush functions */
+
 #include "ghostxps.h"
 
 enum { TILE_NONE, TILE_TILE, TILE_FLIP_X, TILE_FLIP_Y, TILE_FLIP_X_Y };
diff --git a/xps/xpsxml.c b/xps/xpsxml.c
index f1fff4b0c..d71fbee74 100644
--- a/xps/xpsxml.c
+++ b/xps/xpsxml.c
@@ -1,3 +1,16 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
 /* Recursive descent XML parsing API on top of Expat. */
 
 #include "ghostxps.h"
@@ -51,30 +64,30 @@ static void on_open_tag(void *zp, const char *ns_name, const char **atts)
 
     if (parser->error)
 	return;
-	
+
     /* check namespace */
-    
+
     name = NULL;
-    
+
     p = strstr(ns_name, NS_XPS);
     if (p == ns_name)
     {
 	name = strchr(ns_name, ' ') + 1;
     }
-    
+
     p = strstr(ns_name, NS_MC);
     if (p == ns_name)
     {
 	name = strchr(ns_name, ' ') + 1;
 	parser->compat = 1;
     }
-    
+
     if (!name)
     {
 	dprintf1("unknown namespace: %s\n", ns_name);
 	name = ns_name;
     }
-      
+
     /* count size to alloc */
 
     namelen = strlen(name) + 1; /* zero terminated */
@@ -236,7 +249,7 @@ xps_parse_xml(xps_context_t *ctx, char *buf, int len)
     }
 
     XML_ParserFree(xp);
-    
+
     if (parser.compat)
 	xps_process_compatibility(ctx, parser.root);
 
@@ -321,7 +334,7 @@ xps_debug_item_imp(xps_item_t *item, int level, int loop)
 	}
 
 	item = item->next;
-	
+
 	if (!loop)
 	    return;
     }
@@ -332,3 +345,4 @@ xps_debug_item(xps_item_t *item, int level)
 {
     xps_debug_item_imp(item, level, 0);
 }
+
diff --git a/xps/xpszip.c b/xps/xpszip.c
index 410d1e868..8f6bc6251 100644
--- a/xps/xpszip.c
+++ b/xps/xpszip.c
@@ -1,3 +1,18 @@
+/* Copyright (C) 2006-2008 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied, modified
+   or distributed except as expressly authorized under the terms of that
+   license.  Refer to licensing information at http://www.artifex.com/
+   or contact Artifex Software, Inc.,  7 Mt. Lassen  Drive - Suite A-134,
+   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
+*/
+
+/* XPS interpreter - zip container parsing */
+
 #include "ghostxps.h"
 
 #define ZIP_LOCAL_FILE_SIG 0x04034b50
@@ -68,7 +83,7 @@ xps_zip_alloc_items(xps_context_t *ctx, int items, int size)
     return xps_alloc(ctx, items * size);
 }
 
-static void 
+static void
 xps_zip_free(xps_context_t *ctx, void *ptr)
 {
     xps_free(ctx, ptr);