Mechanical conversion to use prefixcmp()
This mechanically converts strncmp() to use prefixcmp(), but only when
the parameters match specific patterns, so that they can be verified
easily. Leftover from this will be fixed in a separate step, including
idiotic conversions like
if (!strncmp("foo", arg, 3))
=>
if (!(-prefixcmp(arg, "foo")))
This was done by using this script in px.perl
#!/usr/bin/perl -i.bak -p
if (/strncmp\(([^,]+), "([^\\"]*)", (\d+)\)/ && (length($2) == $3)) {
s|strncmp\(([^,]+), "([^\\"]*)", (\d+)\)|prefixcmp($1, "$2")|;
}
if (/strncmp\("([^\\"]*)", ([^,]+), (\d+)\)/ && (length($1) == $3)) {
s|strncmp\("([^\\"]*)", ([^,]+), (\d+)\)|(-prefixcmp($2, "$1"))|;
}
and running:
$ git grep -l strncmp -- '*.c' | xargs perl px.perl
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff --git a/builtin-branch.c b/builtin-branch.c
index d0e7209..d0179b0 100644
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -59,7 +59,7 @@
branch_use_color = git_config_colorbool(var, value);
return 0;
}
- if (!strncmp(var, "color.branch.", 13)) {
+ if (!prefixcmp(var, "color.branch.")) {
int slot = parse_branch_color_slot(var, 13);
color_parse(value, var, branch_colors[slot]);
return 0;
@@ -178,13 +178,13 @@
int len;
/* Detect kind */
- if (!strncmp(refname, "refs/heads/", 11)) {
+ if (!prefixcmp(refname, "refs/heads/")) {
kind = REF_LOCAL_BRANCH;
refname += 11;
- } else if (!strncmp(refname, "refs/remotes/", 13)) {
+ } else if (!prefixcmp(refname, "refs/remotes/")) {
kind = REF_REMOTE_BRANCH;
refname += 13;
- } else if (!strncmp(refname, "refs/tags/", 10)) {
+ } else if (!prefixcmp(refname, "refs/tags/")) {
kind = REF_TAG;
refname += 10;
}
@@ -446,7 +446,7 @@
reflog = 1;
continue;
}
- if (!strncmp(arg, "--abbrev=", 9)) {
+ if (!prefixcmp(arg, "--abbrev=")) {
abbrev = atoi(arg+9);
continue;
}
@@ -476,7 +476,7 @@
detached = 1;
}
else {
- if (strncmp(head, "refs/heads/", 11))
+ if (prefixcmp(head, "refs/heads/"))
die("HEAD not found below refs/heads!");
head += 11;
}
