endcode          2396 ext/pcre/pcrelib/pcre_compile.c could_be_empty_branch(const pcre_uchar *code, const pcre_uchar *endcode,
endcode          2403 ext/pcre/pcrelib/pcre_compile.c      code < endcode;
endcode          2469 ext/pcre/pcrelib/pcre_compile.c       if (could_be_empty_branch(scode, endcode, utf, cd, &this_recurse))
endcode          2525 ext/pcre/pcrelib/pcre_compile.c         if (!empty_branch && could_be_empty_branch(code, endcode, utf, cd,
endcode          2771 ext/pcre/pcrelib/pcre_compile.c could_be_empty(const pcre_uchar *code, const pcre_uchar *endcode,
endcode          2776 ext/pcre/pcrelib/pcre_compile.c   if (!could_be_empty_branch(bcptr->current_branch, endcode, utf, cd, NULL))