For consistency with -L/RE/, teach -L:RE to search relative to the end
of the previous -L range, if any.
The new behavior invalidates one test in t4211 which assumes that -L:RE
begins searching at start of file. This test will be resurrected in a
follow-up patch which teaches -L:RE how to override the default relative
search behavior.
Signed-off-by: Eric Sunshine <sunshine@xxxxxxxxxxxxxx>
---
Documentation/line-range-format.txt | 3 ++-
line-range.c | 12 +++++++-----
t/annotate-tests.sh | 16 ++++++++++++++++
t/t4211-line-log.sh | 1 -
4 files changed, 25 insertions(+), 7 deletions(-)
diff --git a/Documentation/line-range-format.txt b/Documentation/line-range-format.txt
index cf84417..469d80b 100644
--- a/Documentation/line-range-format.txt
+++ b/Documentation/line-range-format.txt
@@ -24,4 +24,5 @@ of lines before or after the line given by <start>.
+
If ``:<regex>'' is given in place of <start> and <end>, it denotes the range
from the first funcname line that matches <regex>, up to the next
-funcname line.
+funcname line. ``:<regex>'' searches from the end of the previous `-L` range,
+if any, otherwise from the start of file.
diff --git a/line-range.c b/line-range.c
index 7048489..4bae4bf 100644
--- a/line-range.c
+++ b/line-range.c
@@ -161,7 +161,7 @@ static const char *find_funcname_matching_regexp(xdemitconf_t *xecfg, const char
}
static const char *parse_range_funcname(const char *arg, nth_line_fn_t nth_line_cb,
- void *cb_data, long lines, long *begin, long *end,
+ void *cb_data, long lines, long anchor, long *begin, long *end,
const char *path)
{
char *pattern;
@@ -187,7 +187,8 @@ static const char *parse_range_funcname(const char *arg, nth_line_fn_t nth_line_
pattern = xstrndup(arg+1, term-(arg+1));
- start = nth_line_cb(cb_data, 0);
+ anchor--; /* input is in human terms */
+ start = nth_line_cb(cb_data, anchor);
drv = userdiff_find_by_path(path);
if (drv && drv->funcname.pattern) {
@@ -205,7 +206,8 @@ static const char *parse_range_funcname(const char *arg, nth_line_fn_t nth_line_
p = find_funcname_matching_regexp(xecfg, (char*) start, ®exp);
if (!p)
- die("-L parameter '%s': no match", pattern);
+ die("-L parameter '%s' starting at line %ld: no match",
+ pattern, anchor + 1);
*begin = 0;
while (p > nth_line_cb(cb_data, *begin))
(*begin)++;
@@ -244,7 +246,7 @@ int parse_range_arg(const char *arg, nth_line_fn_t nth_line_cb,
anchor = lines + 1;
if (*arg == ':') {
- arg = parse_range_funcname(arg, nth_line_cb, cb_data, lines, begin, end, path);
+ arg = parse_range_funcname(arg, nth_line_cb, cb_data, lines, anchor, begin, end, path);
if (!arg || *arg)
return -1;
return 0;
@@ -269,7 +271,7 @@ int parse_range_arg(const char *arg, nth_line_fn_t nth_line_cb,
const char *skip_range_arg(const char *arg)
{
if (*arg == ':')
- return parse_range_funcname(arg, NULL, NULL, 0, NULL, NULL, NULL);
+ return parse_range_funcname(arg, NULL, NULL, 0, 0, NULL, NULL, NULL);
arg = parse_loc(arg, NULL, NULL, 0, -1, NULL);
diff --git a/t/annotate-tests.sh b/t/annotate-tests.sh
index 5a7d7c7..4f7d6ba 100644
--- a/t/annotate-tests.sh
+++ b/t/annotate-tests.sh
@@ -382,6 +382,22 @@ test_expect_success 'blame -L :nomatch' '
test_must_fail $PROG -L:nomatch hello.c
'
+test_expect_success 'blame -L :RE (relative)' '
+ check_count -f hello.c -L3,3 -L:ma.. F 1 H 4
+'
+
+test_expect_success 'blame -L :RE (relative: no preceding range)' '
+ check_count -f hello.c -L:ma.. F 4 G 1
+'
+
+test_expect_success 'blame -L :RE (relative: not found)' '
+ test_must_fail $PROG -L3,3 -L:tambourine hello.c
+'
+
+test_expect_success 'blame -L :RE (relative: end-of-file)' '
+ test_must_fail $PROG -L, -L:main hello.c
+'
+
test_expect_success 'setup incremental' '
(
GIT_AUTHOR_NAME=I &&
diff --git a/t/t4211-line-log.sh b/t/t4211-line-log.sh
index b01b3dd..8ba2d51 100755
--- a/t/t4211-line-log.sh
+++ b/t/t4211-line-log.sh
@@ -48,7 +48,6 @@ canned_test "-M -L '/long f/,/^}/:b.c' move-support" move-support-f
canned_test "-M -L ':f:b.c' parallel-change" parallel-change-f-to-main
canned_test "-L 4,12:a.c -L :main:a.c simple" multiple
-canned_test "-L 4,18:a.c -L :main:a.c simple" multiple-overlapping
canned_test "-L :main:a.c -L 4,18:a.c simple" multiple-overlapping
canned_test "-L 4:a.c -L 8,12:a.c simple" multiple-superset
canned_test "-L 8,12:a.c -L 4:a.c simple" multiple-superset
--
1.8.4.rc1.409.gbd48715
--
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