Feature #11999 » 11999-2.diff
| re.c | ||
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return str;
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}
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static int
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match_named_captures_iter(const OnigUChar *name, const OnigUChar *name_end,
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int back_num, int *back_refs, OnigRegex regex, void *arg) {
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struct MEMO *memo = MEMO_CAST(arg);
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VALUE hash = memo->v1;
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VALUE match = memo->v2;
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VALUE key = rb_enc_str_new((const char *)name, name_end-name, regex->enc);
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VALUE value;
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int i;
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int found = 0;
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for (i = 0; i < back_num; i++) {
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value = rb_reg_nth_match(back_refs[i], match);
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if (RTEST(value)) {
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rb_hash_aset(hash, key, value);
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found = 1;
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}
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}
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if (found == 0) {
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rb_hash_aset(hash, key, Qnil);
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}
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return 0;
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}
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/*
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* call-seq:
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* mtch.named_captures -> hash
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*
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* Returns a Hash using named capture.
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*
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* A key of the hash is a name of the named captures.
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* A value of the hash is a string of last successful capture of corresponding
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* group.
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*
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* m = /(?<a>.)(?<b>.)/.match("01")
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* m.named_captures #=> {"a" => "0", "b" => "1"}
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*
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* m = /(?<a>.)(?<b>.)?/.match("0")
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* m.named_captures #=> {"a" => "0", "b" => nil}
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*
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* m = /(?<a>.)(?<a>.)/.match("01")
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* m.named_captures #=> {"a" => "1"}
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*
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* m = /(?<a>x)|(?<a>y)/.match("x")
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* m.named_captures #=> {"a" => "x"}
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*/
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static VALUE
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match_named_captures(VALUE match)
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{
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VALUE hash;
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struct MEMO *memo;
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match_check(match);
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hash = rb_hash_new();
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memo = MEMO_NEW(hash, match, 0);
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onig_foreach_name(RREGEXP(RMATCH(match)->regexp)->ptr, match_named_captures_iter, (void*)memo);
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return hash;
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}
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/*
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* call-seq:
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| ... | ... | |
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rb_define_method(rb_cMatch, "to_a", match_to_a, 0);
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rb_define_method(rb_cMatch, "[]", match_aref, -1);
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rb_define_method(rb_cMatch, "captures", match_captures, 0);
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rb_define_method(rb_cMatch, "named_captures", match_named_captures, 0);
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rb_define_method(rb_cMatch, "values_at", match_values_at, -1);
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rb_define_method(rb_cMatch, "pre_match", rb_reg_match_pre, 0);
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rb_define_method(rb_cMatch, "post_match", rb_reg_match_post, 0);
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| test/ruby/test_regexp.rb | ||
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assert_raise(IndexError, bug9903) {m[key.dup.force_encoding(Encoding::Shift_JIS)]}
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end
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def test_match_data_named_captures
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assert_equal({'a' => '1', 'b' => '2', 'c' => nil}, /^(?<a>.)(?<b>.)(?<c>.)?/.match('12').named_captures)
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assert_equal({'a' => '1', 'b' => '2', 'c' => '3'}, /^(?<a>.)(?<b>.)(?<c>.)?/.match('123').named_captures)
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assert_equal({'a' => '1', 'b' => '2', 'c' => ''}, /^(?<a>.)(?<b>.)(?<c>.?)/.match('12').named_captures)
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assert_equal({'a' => 'x'}, /(?<a>x)|(?<a>y)/.match('x').named_captures)
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assert_equal({'a' => 'y'}, /(?<a>x)|(?<a>y)/.match('y').named_captures)
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assert_equal({'a' => '1', 'b' => '2'}, /^(.)(?<a>.)(?<b>.)/.match('012').named_captures)
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assert_equal({'a' => '2'}, /^(?<a>.)(?<a>.)/.match('12').named_captures)
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assert_equal({}, /^(.)/.match('123').named_captures)
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end
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def test_assign_named_capture
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assert_equal("a", eval('/(?<foo>.)/ =~ "a"; foo'))
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assert_equal(nil, eval('/(?<@foo>.)/ =~ "a"; defined?(@foo)'))
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