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Fix for issue where backward kill line crashes if performed while the cursor is on a newline

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https://github.com/fish-shell/fish-shell/pull/580
This commit is contained in:
ridiculousfish 2013-02-17 14:22:27 -08:00
parent 8b40f09e17
commit 911c37e63e
1 changed files with 9 additions and 4 deletions
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13
reader.cpp
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@ -3101,18 +3101,23 @@ const wchar_t *reader_readline()
const wchar_t *buff = data->command_line.c_str();
const wchar_t *end = &buff[data->buff_pos];
const wchar_t *begin = end;
/* Make sure we delete at least one character (see #580) */
begin--;
/* Delete until we hit a newline, or the beginning of the string */
while (begin > buff && *begin != L'\n')
begin--;
/* If we landed on a newline, don't delete it */
if (*begin == L'\n')
begin++;
assert(end >= begin);
size_t len = maxi<size_t>(end-begin, 1);
begin = end - len;
reader_kill(begin - buff, len, KILL_PREPEND, last_char!=R_BACKWARD_KILL_LINE);
}
break;