Exclude Substring from Match

Question

This Regex is written with the .Net Regex Class.

So I have this string:

<div style="text-align:center;font-size: 18px;"><span style="font-size:14px;">11th of April 2015</span> 18:10</div>

I have this Regex Code:

[0-9]{1,2}(st|nd|rd|th) of \w{3,9} \d{4}<\/span> \d{1,2}:\d{1,2}

This Code return this Match:

11th of April 2015</span> 18:10

Is there a possibility with Regex to exclude the

(st|nd|rd|th) of

and

</span>

from the Match to make it look like this:

11 April 2015 18:10

I have tried with positive lookbehind, but I didn't get it to work.

use html parser instead?

hjpotter92
– hjpotter92

2015-04-12 20:13:58 +00:00
Commented Apr 12, 2015 at 20:13 — hjpotter92
– hjpotter92, Commented Apr 12, 2015 at 20:13
Is it JavaScript you are using?

Wiktor Stribiżew
– Wiktor Stribiżew

2015-04-12 20:14:58 +00:00
Commented Apr 12, 2015 at 20:14 — Wiktor Stribiżew
– Wiktor Stribiżew, Commented Apr 12, 2015 at 20:14
No I am using C# Regex

Encore
– Encore

2015-04-12 20:15:14 +00:00
Commented Apr 12, 2015 at 20:15 — Encore
– Encore, Commented Apr 12, 2015 at 20:15

Kasravnd · Accepted Answer · 2015-04-12 21:09:47Z

3

You can use grouping for sub-string that you want and none capturing for the groups that you don't want:

(\d+)(?:st|nd|rd|th) [a-zA-Z]+ ([a-zA-Z]+) (\d+)<\/span>\s?(\d+:\d+)<\/div>

Demo

edited Apr 12, 2015 at 21:09

answered Apr 12, 2015 at 20:19

Kasravnd

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1 Comment

Wiktor Stribiżew Over a year ago

This results in 11, April, 2015 being captured. In OP, it is stated that 11 April 2015 18:10 must be the final result.

Wiktor Stribiżew · Accepted Answer · 2015-04-12 20:27:34Z

0

You can match the parts of the string that you need, and then combine the capture groups, e.g.:

var regex34 = new Regex(@"([0-9]{1,2})(?:(?:st|nd|rd|th) of)( \w{3,9} \d{4})<\/span>( \d{1,2}:\d{1,2})");
var input34 = "<div style=\"text-align:center;font-size: 18px;\"><span style=\"font-size:14px;\">11th of April 2015</span> 18:10</div>";
var result = regex34.Match(input34);
var final = result.Groups[1].Value + result.Groups[2].Value + result.Groups[3].Value;

Output:

enter image description here

answered Apr 12, 2015 at 20:27

Wiktor Stribiżew

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2 Comments

Wiktor Stribiżew Over a year ago

@Encore: I gave the correct answer with testing results in VS2012 first.

Encore Over a year ago

Thank you for your answer, but I had the C# code already and just needed the new Regex, that was first provided by Kasra. Sorry!

Jason Cust · Accepted Answer · 2015-04-12 20:28:23Z

0

You can use a non-capture group: (?:...)

edited Apr 12, 2015 at 20:28

answered Apr 12, 2015 at 20:18

Jason Cust

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