CRB_string_substr 152 CRB_dev.h CRB_Object *CRB_string_substr(CRB_Interpreter *inter, CRB_string_substr 1088 eval.c = CRB_string_substr(inter, env, obj, CRB_string_substr 198 regexp.c = CRB_string_substr(inter, env, crb_subject,