check_escape     5133 ext/pcre/pcrelib/pcre_compile.c         escape = check_escape(&ptr, &ec, errorcodeptr, cd->bracount, options,
check_escape     5344 ext/pcre/pcrelib/pcre_compile.c             descape = check_escape(&ptr, &d, errorcodeptr, cd->bracount, options, TRUE);
check_escape     7892 ext/pcre/pcrelib/pcre_compile.c     escape = check_escape(&ptr, &ec, errorcodeptr, cd->bracount, options, FALSE);