From b409fdd247b54483526342c717a7bd508f2a7419 Mon Sep 17 00:00:00 2001
From: novusr <radjaxyz09@gmail.com>
Date: Thu, 26 Feb 2026 04:21:10 +0800
Subject: [PATCH] fix: Prevent infinite loop during preprocessing when file
 reading stops.

---
 source/compiler/sc2.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/source/compiler/sc2.c b/source/compiler/sc2.c
index f99de201..60d41280 100644
--- a/source/compiler/sc2.c
+++ b/source/compiler/sc2.c
@@ -2125,6 +2125,10 @@ static const unsigned char *unpackedstring(const unsigned char *lptr,int *flags)
     }
     imlstring=MULTILINE|(*flags & RAWMODE);
     preprocess();
+    if (!freading) {
+      imlstring=0;
+      break;
+    }
     lptr=pline;
   } /* for */
   litadd(0);
@@ -2229,6 +2233,10 @@ static const unsigned char *packedstring(const unsigned char *lptr,int *flags)
     }
     imlstring=MULTILINE|(*flags & RAWMODE);
     preprocess();
+    if (!freading) {
+      imlstring=0;
+      break;
+    }
     lptr=pline;
   } /* for */
   /* save last code; make sure there is at least one terminating zero character */