Bug 691476

Summary:	infinite loop while lexing
Product:	MuPDF	Reporter:	Krzysztof Kowalczyk <kkowalczyk>
Component:	mupdf	Assignee:	Tor Andersson <tor.andersson>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	P4
Version:	unspecified
Hardware:	PC
OS:	All
Customer:		Word Size:	---
Attachments:	PDF that shows infinite loop

Description Krzysztof Kowalczyk 2010-07-18 23:49:07 UTC

http://darcs.ghostscript.com/darcsweb.cgi/darcsweb.cgi?r=mupdf;a=commitdiff;h=20100526120559-a72ac-a9501f7417b7e4f1d6c942cd5ab2997961191043.gz introduced a subtle regression that can cause infinite loop. 

Character ')' would previously be rejected by isregular() but now will be lexed as name, without advancing, causing infinite loop.

Potential fix: http://code.google.com/p/sumatrapdf/source/detail?r=2031

Attached PDF that shows the problem.

Comment 1 Krzysztof Kowalczyk 2010-07-18 23:50:05 UTC

Created attachment 6505 [details]
PDF that shows infinite loop