diff options
Diffstat (limited to 'range.c')
| -rw-r--r-- | range.c | 22 |
1 files changed, 22 insertions, 0 deletions
@@ -10,6 +10,7 @@ **********************************************************************/ #include "ruby/ruby.h" +#include "ruby/encoding.h" VALUE rb_cRange; static ID id_cmp, id_succ, id_beg, id_end, id_excl; @@ -748,6 +749,27 @@ range_include(VALUE range, VALUE val) } return Qfalse; } + else if (TYPE(beg) == T_STRING && TYPE(end) == T_STRING && + RSTRING_LEN(beg) == 1 && RSTRING_LEN(end) == 1) { + rb_encoding *enc = rb_enc_check(beg, end); + + if (NIL_P(val)) return Qfalse; + if (TYPE(val) == T_STRING) { + if (RSTRING_LEN(val) == 0 || RSTRING_LEN(val) > 1) + return Qfalse; + else { + char b = RSTRING_PTR(beg)[0]; + char e = RSTRING_PTR(end)[0]; + char v = RSTRING_PTR(val)[0]; + + if (ISASCII(b) && ISASCII(e) && ISASCII(v)) { + if (b <= v && v < e) return Qtrue; + if (!EXCL(range) && v == e) return Qtrue; + return Qfalse; + } + } + } + } /* TODO: ruby_frame->this_func = rb_intern("include?"); */ return rb_call_super(1, &val); } |