parser_pushback  10152 ext/ripper/ripper.c # define pushback(c)               parser_pushback(parser, c)
parser_pushback  4752 ext/ripper/ripper.y # define pushback(c)               parser_pushback(parser, c)
parser_pushback  10084 parse.c        # define pushback(c)               parser_pushback(parser, c)
parser_pushback  4752 parse.y        # define pushback(c)               parser_pushback(parser, c)