RegEx matches two results single line as one

Question

I have JavaScript a code

var docBodyText = document.body.innerHTML;
var patt =/<!--:.+:-->/g;
patt.compile(patt);
var matchesB=docBodyText.match(patt)

and a HTML page

<body>
<span><b><!--:?time:--> <!--:?date:--></b></span>
<br />
<!--:?url:-->
</body>

When I execute the script it returns
["",""]

but I want
 and  to be returned separately.

Answer 1

You are matching greedily . The + by default means "1 or more times, but prefer as many as possible". Add a ? modifier after the + to make it match lazily:

var patt =/<!--:.+?:-->/g;

Answer 2

尝试更改模式以排除其他>标签：

var patt =/<!--:[^>]+:-->/g;

Answer 3

Javascript regex are greedy by default. You need to use the non-greedy qualifier for this to get the shortes matching string.

var patt =/<!--:.+?:-->/g;

RegEx matches two results single line as one

Question

3 answers

solution1
1 ACCPTED 2012-02-14 00:01:20

solution2
0 2012-02-14 00:02:30

solution3
0 2012-02-14 00:03:34

RegEx matches two results single line as one

Question

3 answers

solution1 1 ACCPTED 2012-02-14 00:01:20

solution2 0 2012-02-14 00:02:30

solution3 0 2012-02-14 00:03:34

solution1
1 ACCPTED 2012-02-14 00:01:20

solution2
0 2012-02-14 00:02:30

solution3
0 2012-02-14 00:03:34