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files: clear original filename when the user toggles Append or Prepend 

When the current filename is equal to the filename of the buffer,
then clear the filename, because the chances that the user wants
to append or prepend a file to itself are practically nil.

This fulfills https://savannah.gnu.org/bugs/?61243.
master
Benno Schulenberg 2021-10-07 12:38:04 +02:00
parent 64c9d3c143
commit bc22b3c876
1 changed files with 4 additions and 0 deletions
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4
src/files.c
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@ -2194,9 +2194,13 @@ int do_writeout(bool exiting, bool withprompt)
TOGGLE(MAKE_BACKUP);
continue;
} else if (func == prepend_void) {
if (strcmp(answer, openfile->filename) == 0)
given[0] = '\0';
method = (method == PREPEND) ? OVERWRITE : PREPEND;
continue;
} else if (func == append_void) {
if (strcmp(answer, openfile->filename) == 0)
given[0] = '\0';
method = (method == APPEND) ? OVERWRITE : APPEND;
continue;
}