ESP GhostScript does not display/print files produced with GNU libplot

[michaelrsweet]

Version: 7.05.6
CUPS.org User: till.kamppeter

A user of Mandrake Linux 9.0 reported the following bug already some time ago

https://qa.mandrakesoft.com/show_bug.cgi?id=431

He has found out that all plots created with the GNU libplot library cause an error when trying to display or print these with ESP GhostScript 7.05.5 or 7.05.6. They work fine with GNU or AFPL GhostScript.

I could reproduce the bug. The file

http://www.linuxprinting.org/till/tmp/ESP_GS_7.05.5_does_not_display_this.ps

causes an error in ESP GhostScript (Mandrake 9.0 or 9.1, ESP GhostScript 7.05.5 or 7.05.6) and works correctly with GNU GhostScript (version 6.53 from Mandrake 8.2).

---

$ gs -sDEVICE=x11 ESP_GS_7.05.5_does_not_display_this.ps

ESP Ghostscript 7.05 (2002-09-02)
Copyright (C) 2002 artofcode LLC, Benicia, CA. All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Loading NimbusSanL-Regu font from /usr/share/fonts/default/Type1/n019003l.pfb... 2038856 677148 1642520 351139 0 done.
Using NimbusSansL-Regu font for NimbusSanL-Regu.
Error: /rangecheck in --get--
Operand stack:
--nostringval-- --nostringval-- --nostringval-- descender 0 --nostringval-- 1
Execution stack:
%interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1 3 %oparray_pop 1 3 %oparray_pop 1 3
%oparray_pop .runexec2 --nostringval-- --nostringval-- --nostringval--
2 %stopped_push --nostringval-- --nostringval-- --nostringval-- --nostringval--
Dictionary stack:
--dict:1047/1123(ro)(G)-- --dict:0/20(G)-- --dict:69/200(L)-- --dict:39/50(L)-- --dict:2/17(L)-- --dict:5/17(L)-- --dict:1/3(L)-- --dict:13/14(ro)(L)--
Current allocation mode is local
Current file position is 11008
ESP Ghostscript 7.05.5: Unrecoverable error, exit code 1

$

[michaelrsweet]

CUPS.org User: mike

The problem code in question is on line 297 of the sample file. The code:

[FontBBox] 1 get

doesn't work, while:

FontBBox 1 get

does, which implies that either the previous fix in 7.05.4 (that caused other problems) was correct or the PS file is incorrect. I will do some testing with real PostScript interpreters to see what they accept.

[michaelrsweet]

CUPS.org User: mike

OK, the empty -c command stuff is causing the problem. Will update either the pstoraster script or fix gs.c itself...

[michaelrsweet]

CUPS.org User: mike

Fixed in CVS...

[michaelrsweet]

CUPS.org User: till.kamppeter

I have tried again with the current CVS of ESP GhostScript (after 7.07.1rc1). The bug is still not fixed (the file is exactly the same as of the initial report, raw printing of the file on the HP LaserJet 4050 works just fine):

---

[root@majax printerdrake]# gs -sDEVICE=x11 ESP_GS_7.05.5_does_not_display_this.ps
ESP Ghostscript 7.07 (2003-07-12)
Copyright 2003 artofcode LLC and Easy Software Products, all rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Loading NimbusSanL-Regu font from /usr/share/fonts/default/Type1/n019003l.pfb... 2089640 720515 1642520 352093 0 done.
Error: /rangecheck in --get--
Operand stack:
--nostringval-- --nostringval-- --nostringval-- descender 0 --nostringval-- 1
Execution stack:
%interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- false 1 %stopped_push 1 3 %oparray_pop 1 3 %oparray_pop 1 3 %oparray_pop .runexec2 --nostringval-- --nostringval-- --nostringval-- 2 %stopped_push --nostringval-- --nostringval-- --nostringval-- --nostringval--
Dictionary stack:
--dict:1048/1417(ro)(G)-- --dict:0/20(G)-- --dict:69/200(L)-- --dict:39/50(L)-- --dict:2/17(L)-- --dict:5/17(L)-- --dict:1/3(L)-- --dict:13/14(ro)(L)--
Current allocation mode is local
Current file position is 11008
ESP Ghostscript 7.07.1: Unrecoverable error, exit code 1

[root@majax printerdrake]#