ONIG_OPTION_FIND_LONGEST  343 include/ruby/oniguruma.h #define ONIG_OPTION_FIND_NOT_EMPTY       (ONIG_OPTION_FIND_LONGEST       << 1)
ONIG_OPTION_FIND_LONGEST  320 regint.h       #define IS_FIND_LONGEST(option)   ((option) & ONIG_OPTION_FIND_LONGEST)
ONIG_OPTION_FIND_LONGEST  323 regint.h                 (ONIG_OPTION_FIND_LONGEST | ONIG_OPTION_FIND_NOT_EMPTY))