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fix github issue #734 - ^A crash

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Issue #734 reported as "parse function" by Meklon2007:  the change
yesterday intended to make ^A work for commands that were preceded
by a prefix was triggering a crash if used after a keystroke that's
not assigned to any command.

'M^A' or '~^A' would segfault by derefencing a null pointer when
checking whether 'M' or '~' was a prefix.  This prevents the check
attempt from doing that, but a better fix would be to not put the
invalid command keystroke into the do-again buffer in the first
place.

Fixes #734
This commit is contained in:
PatR
2022-04-15 10:07:19 -07:00
parent cb02ce88c5
commit ad46090732
2 changed files with 5 additions and 2 deletions
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doc/fixes3-7-0.txt
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@@ -1151,6 +1151,8 @@ arriving on Valkyrie quest final level could produce impossible warning
"mkstairs: placing stairs up on molten lava at <68,13>"
if the repeat command was used after prefix+command, only the command part got
repeated
the change for repeat after prefix+command would result in a crash if repeat
was attempted after an unassigned key
curses: 'msg_window' option wasn't functional for curses unless the binary
also included tty support