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* re.c (rb_reg_match_m): evaluate a block if match. it would make

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condition statement much shorter, if no else clause is needed.

* string.c (rb_str_match_m): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2007-09-20 17:14:01 +00:00
parent f4d9d3d39b
commit 5376745fb6
3 changed files with 42 additions and 2 deletions
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16
re.c
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@ -1797,6 +1797,19 @@ rb_reg_match2(VALUE re)
*
* /(.)(.)(.)/.match("abc")[2] #=> "b"
* /(.)(.)/.match("abc", 1)[2] #=> "c"
*
* If a block is given, invoke the block with MatchData if match succeed, so
* that you can write
*
* pat.match(str) {|m| ...}
*
* instead of
*
* if m = pat.match(str)
* ...
* end
*
* The retuen value is a value from block exection in this case.
*/
static VALUE
@ -1819,6 +1832,9 @@ rb_reg_match_m(int argc, VALUE *argv, VALUE re)
}
result = rb_backref_get();
rb_match_busy(result);
if (!NIL_P(result) && rb_block_given_p()) {
return rb_yield(result);
}
return result;
}