JavaScript Regex not after a specified character

Question

How to match a pattern that is not after a specified character?

Let's say the specified character is a space and we want to match @match

Eg: @match - finds "@match", because no space before it

@match and @match - finds the first @match but not the second one because there is a space before it.

ANTHING@match - should also find "@match", because no space before it.

Can you post an example showing what you've tried so far? – colllin Feb 21 '14 at 01:50 — colllin, Feb 21 '14 at 01:50

score 2 · Answer 1 · answered Feb 21 '14 at 01:50

2

Have you tried something like this?

/[^ ](pattern)/

But that won't match patterns at the beginning of the string, so you could use that in combination with:

/^pattern/

answered Feb 21 '14 at 01:50

colllin

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`/([^ ]|^)pattern/g` goes close, though I'm not exactly sure what the OP is after. – RobG Feb 21 '14 at 01:56
Wow, can you really use `^` as a character like that? – colllin Feb 21 '14 at 02:00

stackPusher · Answer 2 · 2014-02-21T19:30:11.133

1

I'm not sure... but for all trying to answer this question, here's a jsfiddle where you can just enter your REGEX where it says INSERT_REGEX_HERE and see if it works. Enjoy!

<div ng-app>
<form novalidate name="myForm">
<input name="input1" type="text" ng-model="input1" ng-pattern="/INSERT_REGEX_HERE/" />
<div ng-show="myForm.input1.$dirty && myForm.input1.$error.pattern">DOES NOT MATCH     REGEX</div>
</form> 
</div>

http://jsfiddle.net/MLhqT/2/

edited Feb 21 '14 at 19:30

answered Feb 21 '14 at 02:02

stackPusher

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LOL, What kind of answer begins with 'I'm not sure'? Also where's the link? – Matt Nibecker Feb 21 '14 at 02:07

JavaScript Regex not after a specified character

2 Answers2