onig_parse_make_tree 5737 regcomp.c        r = onig_parse_make_tree(&root, pattern, pattern_end, reg, &scan_env);
onig_parse_make_tree  356 regparse.h     extern int    onig_parse_make_tree P_((Node** root, const UChar* pattern, const UChar* end, regex_t* reg, ScanEnv* env));