From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Fri, 10 Oct 2025 13:11:15 +0000 (+0200)
Subject: Fix loading of (noncompliant) wide PGN
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=1bb95bf805d5bb135f1150b99351b2deba72c61f;p=xboard.git

Fix loading of (noncompliant) wide PGN

The PGN standard limits line length to 255 characters. But rather than
clipping too-long lines, XBoard now tries to split such lines at a space.
---

diff --git a/parser.c b/parser.c
index 7e71619..99808fb 100644
--- a/parser.c
+++ b/parser.c
@@ -289,6 +289,7 @@ ReadLine ()
     if(fromString) return 0; // parsing string, so the end is a hard end
     if(!inputFile) return 0;
     while((c = fgetc(inputFile)) != EOF) {
+	if(c == ' ' && inPtr - inputBuf > PARSEBUFSIZE/2) break;  // break too-long lines
 	*inPtr++ = c;
 	if(c == '\n') { *inPtr = NULLCHAR; return 1; }
 	if(inPtr - inputBuf > PARSEBUFSIZE-2) inPtr--; //prevent crash on overflow