[PATCH v8 2/5] blame: introduce $ as "end of file" in -L syntax
- From
Thomas Rast <trast@student.ethz.ch>
- Date
- Feb 28, 2013, 16:38 UTC
- Message-ID
- <7973d90cfcd86a3c15776b8718ad6bd84ee7b4ac.1362069310.git.trast@student.ethz.ch>
- In-Reply-To
- <cover.1362069310.git.trast@student.ethz.ch>
To save the user a lookup of the last line number, introduce $ as a shorthand for the last line. This is mostly useful to spell "until the end of the file" as '-L<begin>,$'.
Signed-off-by: Thomas Rast <trast@student.ethz.ch> --- Documentation/line-range-format.txt | 6 ++++++ line-log.c | 8 ++++++++ 2 files changed, 14 insertions(+)
diff --git a/Documentation/line-range-format.txt b/Documentation/line-range-format.txt index 265bc23..9ce0688 100644 --- a/Documentation/line-range-format.txt +++ b/Documentation/line-range-format.txt @@ -16,3 +16,9 @@ starting at the line given by <start>. This is only valid for <end> and will specify a number of lines before or after the line given by <start>. + + +- `$` ++ +A literal dollar sign can be used as a shorthand for the last line in +the file. ++ diff --git a/line-log.c b/line-log.c index a24a86b..b167b00 100644 --- a/line-log.c +++ b/line-log.c @@ -15,6 +15,14 @@ const char *parse_loc(const char *spec, nth_line_fn_t nth_line, regmatch_t match[1]; /* + * $ is a synonym for "the end of the file". + */ + if (spec[0] == '$') { + *ret = lines; + return spec + 1; + } + + /* * Allow "-L <something>,+20" to mean starting at <something> * for 20 lines, or "-L <something>,-5" for 5 lines ending at * <something>.
-- 1.8.2.rc1.388.g1bd82c8