248 static char *extend_string(char **old, char *new, int oldlen, int newlen)  in extend_string()  argument
250   int newline = newlen < 0;  in extend_string()
253   if (newline) newlen = -newlen;  in extend_string()
254   s = *old = xrealloc(*old, oldlen+newlen+newline+1);  in extend_string()
256   memcpy(s+oldlen, new, newlen);  in extend_string()
257   s[oldlen+newlen] = 0;  in extend_string()
259   return s+oldlen+newlen+1;  in extend_string()
490       int mflags = 0, count = 0, zmatch = 1, rlen = len, mlen, off, newlen;  in walk_pattern()  local
518         for (off = newlen = 0; new[off]; off++) {  in walk_pattern()
524             newlen++;  in walk_pattern()
527           newlen += match[cc].rm_eo-match[cc].rm_so;  in walk_pattern()
532         len += newlen-mlen;  in walk_pattern()
536         memcpy(rswap+newlen, rline+match[0].rm_eo, (rlen -= match[0].rm_eo)+1);  in walk_pattern()
561         rline = rswap+newlen;  in walk_pattern()