[gs-cvs] rev 7834 - in trunk/gs: lib src

[alexcher at ghostscript.com]

Author: alexcher
Date: 2007-04-08 11:23:38 -0700 (Sun, 08 Apr 2007)
New Revision: 7834

Modified:
   trunk/gs/lib/pdf_base.ps
   trunk/gs/lib/pdf_main.ps
   trunk/gs/src/ziodevs.c
   trunk/gs/src/ziodevsc.c
Log:
Increase the size of %stdin buffer to support larger lookahead requests and
look for for %PDF- tag in the first 1024 bytes of the file. Fix bug 687125,

DIFFERENCES:
No CET or Comparefiles differences. 


Modified: trunk/gs/lib/pdf_base.ps
===================================================================
--- trunk/gs/lib/pdf_base.ps	2007-04-08 17:55:40 UTC (rev 7833)
+++ trunk/gs/lib/pdf_base.ps	2007-04-08 18:23:38 UTC (rev 7834)
@@ -47,9 +47,10 @@
 
 % ------ Utilities ------ %
 
-% Define a scratch string.  The PDF language definition says that
-% no line in a PDF file can exceed 255 characters.
-/pdfstring 255 string def
+% Define a scratch string. The PDF language definition says that
+% no line in a PDF file can exceed 255 characters, but this string
+% is also used to search for %PDF-, which needs 1024 characters.
+/pdfstring 1024 string def
 
 % Read the previous line of a file.  If we aren't at a line boundary,
 % read the line containing the current position.

Modified: trunk/gs/lib/pdf_main.ps
===================================================================
--- trunk/gs/lib/pdf_main.ps	2007-04-08 17:55:40 UTC (rev 7833)
+++ trunk/gs/lib/pdf_main.ps	2007-04-08 18:23:38 UTC (rev 7834)
@@ -76,7 +76,7 @@
   } loop
   exch pop
   {
-    dup 127 string .peekstring { % "128 string" doesn't work for "(%stdin) run"
+    dup 1023 string .peekstring { % "1024 string" exceeds current %stdin buffer"
       (%PDF-1.) search {
         3 1 roll pop pop
         dup (%!PS) search not {

Modified: trunk/gs/src/ziodevs.c
===================================================================
--- trunk/gs/src/ziodevs.c	2007-04-08 17:55:40 UTC (rev 7833)
+++ trunk/gs/src/ziodevs.c	2007-04-08 18:23:38 UTC (rev 7834)
@@ -43,7 +43,7 @@
  * immediately afterwards so as not to wind up with dangling references.
  */
 
-#define STDIN_BUF_SIZE 128
+#define STDIN_BUF_SIZE 1024
 
 private iodev_proc_init(stdin_init);
 private iodev_proc_open_device(stdin_open);

Modified: trunk/gs/src/ziodevsc.c
===================================================================
--- trunk/gs/src/ziodevsc.c	2007-04-08 17:55:40 UTC (rev 7833)
+++ trunk/gs/src/ziodevsc.c	2007-04-08 18:23:38 UTC (rev 7834)
@@ -45,7 +45,7 @@
  * immediately afterwards so as not to wind up with dangling references.
  */
 
-#define STDIN_BUF_SIZE 128
+#define STDIN_BUF_SIZE 1024
 private iodev_proc_init(stdin_init);
 private iodev_proc_open_device(stdin_open);
 const gx_io_device gs_iodev_stdin =