onigenc_step_back  286 ext/mbstring/oniguruma/oniguruma.h         onigenc_step_back((enc),(start),(s),(n))
onigenc_step_back  334 ext/mbstring/oniguruma/oniguruma.h OnigUChar* onigenc_step_back P_((OnigEncoding enc, const OnigUChar* start, const OnigUChar* s, int n));