/* Implementation of :s and :gs filename modifiers. */
static int
apply_s_gs_mod(const char *path, const char *mod, char *buf, size_t buf_len)
{
char pattern[256], sub[256];
int global;
const char *start = mod;
char c = (mod[1] == 'g') ? mod++[3] : mod[2];
const char *t, *p = find_nth_chr(mod, c, 3);
if(p == NULL)
{
snprintf(buf, buf_len, "%s", path);
return 0;
}
t = find_nth_chr(mod, c, 2);
snprintf(pattern, t - (mod + 3) + 1, "%s", mod + 3);
snprintf(sub, p - (t + 1) + 1, "%s", t + 1);
global = (mod[0] == 'g');
snprintf(buf, buf_len, "%s", substitute_in_name(path, pattern, sub, global));
return (p + 1) - start - 2;
}
static void
test_substitute_end_global(void)
{
assert_string_equal("10", substitute_in_name("100", "0$", "", 1));
}
static void
test_substitute_segfault_bug(void)
{
/* see #SF3515922 */
assert_string_equal("barfoobar", substitute_in_name("foobar", "^", "bar", 1));
}
static void
test_substitute_begin_global(void)
{
assert_string_equal("01", substitute_in_name("001", "^0", "", 1));
}
