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REG_STARTEND is not portable, but it turns out we don't actually need

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it. From Evan Green, GitHub issue 1982.
This commit is contained in:
nicm
2019-11-27 20:54:30 +00:00
parent fef8ee23c0
commit eb4d60b1ce
1 changed files with 11 additions and 11 deletions
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22
regsub.c
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@@ -77,10 +77,7 @@ regsub(const char *pattern, const char *with, const char *text, int flags)
end = strlen(text);
while (start <= end) {
m[0].rm_so = start;
m[0].rm_eo = end;
if (regexec(&r, text, nitems(m), m, REG_STARTEND) != 0) {
if (regexec(&r, text + start, nitems(m), m, 0) != 0) {
regsub_copy(&buf, &len, text, start, end);
break;
}
@@ -89,22 +86,25 @@ regsub(const char *pattern, const char *with, const char *text, int flags)
* Append any text not part of this match (from the end of the
* last match).
*/
regsub_copy(&buf, &len, text, last, m[0].rm_so);
regsub_copy(&buf, &len, text, last, m[0].rm_so + start);
/*
* If the last match was empty and this one isn't (it is either
* later or has matched text), expand this match. If it is
* empty, move on one character and try again from there.
*/
if (empty || m[0].rm_so != last || m[0].rm_so != m[0].rm_eo) {
regsub_expand(&buf, &len, with, text, m, nitems(m));
if (empty ||
start + m[0].rm_so != last ||
m[0].rm_so != m[0].rm_eo) {
regsub_expand(&buf, &len, with, text + start, m,
nitems(m));
last = m[0].rm_eo;
start = m[0].rm_eo;
last = start + m[0].rm_eo;
start += m[0].rm_eo;
empty = 0;
} else {
last = m[0].rm_eo;
start = m[0].rm_eo + 1;
last = start + m[0].rm_eo;
start += m[0].rm_eo + 1;
empty = 1;
}