diff options
Diffstat (limited to 're.c')
-rw-r--r-- | re.c | 17 |
1 files changed, 17 insertions, 0 deletions
@@ -2034,6 +2034,22 @@ rb_check_regexp_type(VALUE re) return rb_check_convert_type(re, T_REGEXP, "Regexp", "to_regexp"); } +/* + * call-seq: + * Regexp.try_convert(obj) -> re or nil + * + * Try to convert <i>obj</i> into a Regexp, using to_regexp method. + * Returns converted regexp or nil if <i>obj</i> cannot be converted + * for any reason. + * + * IO.try_convert(/re/) # => /re/ + * IO.try_convert("re") # => nil + */ +static VALUE +rb_reg_s_try_convert(VALUE dummy, VALUE re) +{ + return rb_check_regexp_type(re); +} /* * call-seq: @@ -2422,6 +2438,7 @@ Init_Regexp(void) rb_define_singleton_method(rb_cRegexp, "escape", rb_reg_s_quote, -1); rb_define_singleton_method(rb_cRegexp, "union", rb_reg_s_union, -1); rb_define_singleton_method(rb_cRegexp, "last_match", rb_reg_s_last_match, -1); + rb_define_singleton_method(rb_cRegexp, "try_convert", rb_reg_s_try_convert, 1); rb_define_method(rb_cRegexp, "initialize", rb_reg_initialize_m, -1); rb_define_method(rb_cRegexp, "initialize_copy", rb_reg_init_copy, 1); |