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diff -up expect5.45/expect.c.orig expect5.45/expect.c
--- expect5.45/expect.c.orig 2012-02-06 14:15:13.469490744 +0100
+++ expect5.45/expect.c 2012-02-06 14:16:23.596837896 +0100
@@ -2363,7 +2363,12 @@ expMatchProcess(
/* "!e" means no case matched - transfer by default */
if (!e || e->transfer) {
- int remainder = numchars-match;
+ int remainder;
+ if (match > numchars) {
+ match = numchars;
+ eo->matchlen = match;
+ }
+ remainder = numchars-match;
/* delete matched chars from input buffer */
esPtr->printed -= match;
if (numchars != 0) {
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