The -L/RE/ option of blame/log searches from the end of the previous -L
range, if any. Add new notation -L^/RE/ to override this behavior and
search from start of file.
The new ^/RE/ syntax is valid only as the <start> argument of
-L<start>,<end>. The <end> argument, as usual, is relative to <start>.
Signed-off-by: Eric Sunshine <sunsh...@sunshineco.com>
---
Documentation/line-range-format.txt | 1 +
line-range.c | 10 ++++++++--
t/annotate-tests.sh | 21 +++++++++++++++++++++
3 files changed, 30 insertions(+), 2 deletions(-)
diff --git a/Documentation/line-range-format.txt
b/Documentation/line-range-format.txt
index 42d74f7..cf84417 100644
--- a/Documentation/line-range-format.txt
+++ b/Documentation/line-range-format.txt
@@ -11,6 +11,7 @@ absolute line number (lines count from 1).
This form will use the first line matching the given
POSIX regex. If <start> is a regex, it will search from the end of
the previous `-L` range, if any, otherwise from the start of file.
+If <start> is ``^/regex/'', it will search from the start of file.
If <end> is a regex, it will search
starting at the line given by <start>.
+
diff --git a/line-range.c b/line-range.c
index bbf3c0f..7048489 100644
--- a/line-range.c
+++ b/line-range.c
@@ -59,8 +59,14 @@ static const char *parse_loc(const char *spec, nth_line_fn_t
nth_line,
return term;
}
- if (begin < 0)
- begin = -begin;
+ if (begin < 0) {
+ if (spec[0] != '^')
+ begin = -begin;
+ else {
+ begin = 1;
+ spec++;
+ }
+ }
if (spec[0] != '/')
return spec;
diff --git a/t/annotate-tests.sh b/t/annotate-tests.sh
index b963d36..5a7d7c7 100644
--- a/t/annotate-tests.sh
+++ b/t/annotate-tests.sh
@@ -323,6 +323,23 @@ test_expect_success 'blame -L /RE/ (relative:
end-of-file)' '
test_must_fail $PROG -L, -L/$/ file
'
+test_expect_success 'blame -L ^/RE/ (absolute)' '
+ check_count -L3,3 -L^/dog/,+2 A 1 B2 1
+'
+
+test_expect_success 'blame -L ^/RE/ (absolute: no preceding range)' '
+ check_count -L^/dog/,+2 A 1 B2 1
+'
+
+test_expect_success 'blame -L ^/RE/ (absolute: not found)' '
+ test_must_fail $PROG -L4,4 -L^/tambourine/ file
+'
+
+test_expect_success 'blame -L ^/RE/ (absolute: end-of-file)' '
+ n=$(expr $(wc -l <file) + 1) &&
+ check_count -L$n -L^/$/,+2 A 1 C 1 E 1
+'
+
test_expect_success 'setup -L :regex' '
tr Q "\\t" >hello.c <<-\EOF &&
int main(int argc, const char *argv[])
@@ -464,3 +481,7 @@ test_expect_success 'blame -L X,+N (non-numeric N)' '
test_expect_success 'blame -L X,-N (non-numeric N)' '
test_must_fail $PROG -L1,-N file
'
+
+test_expect_success 'blame -L ,^/RE/' '
+ test_must_fail $PROG -L1,^/99/ file
+'
--
1.8.4.rc1.409.gbd48715
--
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