diff options
author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2002-12-12 09:17:32 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2002-12-12 09:17:32 +0000 |
commit | f744cfd8d7cc51d90ae863589ded64c60030b220 (patch) | |
tree | 298827428de9003eb9c891aa77fa4247a0959043 /re.c | |
parent | d307881fe48b126830dd1f57ef3d494d783a0db4 (diff) |
* re.c (rb_reg_hash): define Regexp#hash to make regexps to be
hash keys.
* re.c (Init_Regexp): define Regexp#eql? (alias to Regexp#==).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3137 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 're.c')
-rw-r--r-- | re.c | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -1057,6 +1057,25 @@ rb_reg_cur_kcode(re) } static VALUE +rb_reg_hash(re) + VALUE re; +{ + int hashval, len; + char *p; + + rb_reg_check(re); + hashval = RREGEXP(re)->ptr->options; + len = RREGEXP(re)->len; + p = RREGEXP(re)->str; + while (len--) { + hashval = hashval * 33 + *p++; + } + hashval = hashval + (hashval>>5); + + return INT2FIX(hashval); +} + +static VALUE rb_reg_equal(re1, re2) VALUE re1, re2; { @@ -1560,6 +1579,8 @@ Init_Regexp() rb_define_method(rb_cRegexp, "initialize", rb_reg_initialize_m, -1); rb_define_method(rb_cRegexp, "copy_object", rb_reg_copy_object, 1); + rb_define_method(rb_cRegexp, "hash", rb_reg_hash, 0); + rb_define_method(rb_cRegexp, "eql?", rb_reg_equal, 1); rb_define_method(rb_cRegexp, "==", rb_reg_equal, 1); rb_define_method(rb_cRegexp, "=~", rb_reg_match, 1); rb_define_method(rb_cRegexp, "===", rb_reg_match, 1); |