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-rw-r--r--src/syntax.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/syntax.c b/src/syntax.c
index 4edac655b7f..a2049e024bf 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -1827,12 +1827,17 @@ scan_lists (from, count, depth, sexpflag)
int temp_pos;
int last_good = from;
int found;
- int from_byte = CHAR_TO_BYTE (from);
+ int from_byte;
int out_bytepos, out_charpos;
int temp;
if (depth > 0) min_depth = 0;
+ if (from > ZV) from = ZV;
+ if (from < BEGV) from = BEGV;
+
+ from_byte = CHAR_TO_BYTE (from);
+
immediate_quit = 1;
QUIT;