From 1bb95bf805d5bb135f1150b99351b2deba72c61f Mon Sep 17 00:00:00 2001
From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Fri, 10 Oct 2025 15:11:15 +0200
Subject: [PATCH] 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.
---
 parser.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

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
-- 
1.7.0.4