ONIG_OPTION_NEWLINE_CRLF  424 include/ruby/oniguruma.h #define ONIG_OPTION_NOTBOS               (ONIG_OPTION_NEWLINE_CRLF << 1)
ONIG_OPTION_NEWLINE_CRLF  442 regint.h       #define IS_NEWLINE_CRLF(option)   ((option) & ONIG_OPTION_NEWLINE_CRLF)