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blame: reject empty ranges -LX,+0 and -LX,-0

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Empty ranges -LX,+0 and -LX,-0 are nonsensical in the context of blame
yet they are accepted (in fact, both are interpreted as -LX,+2).  Report
them as invalid.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Eric Sunshine
2013-07-31 04:15:43 -04:00
committed by Junio C Hamano
parent dedb9129d4
commit abba35395f
2 changed files with 4 additions and 2 deletions
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2
line-range.c
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@ -26,6 +26,8 @@ static const char *parse_loc(const char *spec, nth_line_fn_t nth_line,
if (term != spec + 1) {
if (!ret)
return term;
if (num == 0)
die("-L invalid empty range");
if (spec[0] == '-')
num = 0 - num;
if (0 < num)