diff options
Diffstat (limited to 'enum.c')
| -rw-r--r-- | enum.c | 28 |
1 files changed, 27 insertions, 1 deletions
@@ -6,7 +6,7 @@ $Date$ created at: Fri Oct 1 15:15:19 JST 1993 - Copyright (C) 1993-1998 Yukihiro Matsumoto + Copyright (C) 1993-1999 Yukihiro Matsumoto ************************************************/ @@ -56,6 +56,7 @@ enum_grep(obj, pat) arg[0] = pat; arg[1] = tmp = rb_ary_new(); rb_iterate(rb_each, obj, grep_i, (VALUE)arg); + if (RARRAY(tmp)->len == 0) return Qnil; return tmp; } } @@ -122,6 +123,28 @@ enum_find_all(obj) } static VALUE +reject_i(i, tmp) + VALUE i, tmp; +{ + if (!RTEST(rb_yield(i))) { + rb_ary_push(tmp, i); + } + return Qnil; +} + +static VALUE +enum_reject(obj) + VALUE obj; +{ + VALUE tmp; + + tmp = rb_ary_new(); + rb_iterate(rb_each, obj, reject_i, tmp); + + return tmp; +} + +static VALUE collect_i(i, tmp) VALUE i, tmp; { @@ -373,7 +396,10 @@ Init_Enumerable() rb_define_method(rb_mEnumerable,"sort", enum_sort, 0); rb_define_method(rb_mEnumerable,"grep", enum_grep, 1); rb_define_method(rb_mEnumerable,"find", enum_find, -1); + rb_define_method(rb_mEnumerable,"detect", enum_find, -1); rb_define_method(rb_mEnumerable,"find_all", enum_find_all, 0); + rb_define_method(rb_mEnumerable,"select", enum_find_all, 0); + rb_define_method(rb_mEnumerable,"reject", enum_reject, 0); rb_define_method(rb_mEnumerable,"collect", enum_collect, 0); rb_define_method(rb_mEnumerable,"min", enum_min, 0); rb_define_method(rb_mEnumerable,"max", enum_max, 0); |