Php Regex exclude a certain pattern already matched

Question

Hi there I need a hand with the pattern below:

(?<=\")([0-9\.\/])+(?=\")

Content

<ul>
<li><a href="../">..</a></li>
<li><a href="1.0/">1.0/</a></li>
<li><a href="1.1/">1.1/</a></li>
<li><a href="1.23/">1.23/</a></li>
</ul>

The above pattern selects ../, 1.0/, 1.1/, 1.23/

I don't want to match ../ but any permutation of number,period and / should match.

Give me a hand please.

Thanks as always.

codaddict · Accepted Answer · 2012-09-24 11:45:01Z

3

You can put a negative lookahead assertion in your existing regex:

(?<=\")(?!\.\.)([0-9\.\/])+(?=\")
       ^^^^^^^^

answered Sep 24, 2012 at 11:45

codaddict

457k83 gold badges502 silver badges537 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Joko Wandiro · Accepted Answer · 2012-09-24 14:12:31Z

1

I modify your regex with adding negative lookahead ( (?!\.) ).

(?<=\")(?!\.)([0-9\.\/])+(?=\")

answered Sep 24, 2012 at 14:12

Joko Wandiro

1,9972 gold badges18 silver badges29 bronze badges