ONIG_OPTION_POSIX_REGION 419 include/ruby/oniguruma.h #define ONIG_OPTION_ASCII_RANGE (ONIG_OPTION_POSIX_REGION << 1) ONIG_OPTION_POSIX_REGION 438 regint.h #define IS_POSIX_REGION(option) ((option) & ONIG_OPTION_POSIX_REGION)