backport Fix infinite loop when regexp-matching an empty string

0002-Fix-infinite-loop-when-regexp-matching-an-empty-stri.patch

@@ -0,0 +1,38 @@
+From 751fa603d386915cf1114c937892bd30e86ea687 Mon Sep 17 00:00:00 2001
+From: Bas Zoetekouw <bas@zoetekouw.net>
+Date: Sat, 27 Dec 2014 19:03:50 +0100
+Subject: [PATCH] Fix infinite loop when regexp-matching an empty string See
+ Debian bug https://bugs.debian.org/358389
+
+---
+ src/video.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/src/video.c b/src/video.c
+index cfcd417..52a3615 100644
+--- a/src/video.c
++++ b/src/video.c
+@@ -293,6 +293,20 @@ info_add_highlights(int pos, int cursor, long lines, int column, char **message)
+ 					/* yes, found something, so highlight it */
+ 					int n = pmatch[0].rm_eo - pmatch[0].rm_so;
+ 
++					if (n==0) { /* matched empty string! */
++						/* display error message */
++						char msg[81];
++						snprintf(msg, 81, "%s",
++								_("Warning: matched empty string") );
++						attrset(bottomline);
++						mvhline(maxy - 1, 0, ' ', maxx);
++						mvaddstr(maxy - 1, 0, msg);
++						move(0, 0);
++						attrset(normal);
++
++						break;
++					}
++
+ 					/* point str at start of match */
+ 					str += pmatch[0].rm_so;
+ 
+-- 
+2.33.0
+

pinfo.spec

@@ -1,6 +1,6 @@
 Name:          pinfo
 Version:       0.6.10
-Release:       23
+Release:       24
 Summary:       An user-friendly, console-based viewer for Info documents
 License:       GPLv2
 URL:           http://pinfo.alioth.debian.org
@@ -12,6 +12,7 @@ Patch0004:     pinfo-0.6.9-mansection.patch
 Patch0005:     pinfo-0.6.9-infopath.patch
 Patch0006:     pinfo-0.6.10-man.patch
 Patch0007:     0001-Gracefully-handle-missing-indirect-info-nodes.patch
+Patch0008:     0002-Fix-infinite-loop-when-regexp-matching-an-empty-stri.patch
 
 BuildRequires: ncurses-devel automake gettext-devel libtool texinfo
 Requires:      xdg-utils
@@ -53,6 +54,9 @@ Pinfo-help provides man pages and other related help documents for pinfo.
 %{_mandir}/man1/pinfo.1*
 
 %changelog
+* Fri Nov 03 2023 liyuanyuan <liyuanyuan@xfusion.com> - 0.6.10-24
+- Fix infinite loop when regexp-matching an empty string
+
 * Thu Oct 26 2023 liyuanyuan <liyuanyuan@xfusion.com> - 0.6.10-23
 - Gracefully handle missing indirect info nodes