Hi,

I tried to do it this way:

Code:

var regex = new RegExp ("(?<= \ () [1-9 ](?=( and | or)) "," g ");

but I have an error:

 invalid quantify ?<=()[ 1-9 ](?=( and | or))

 thank you for helping me

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there is nothing to say but there is plenty to do

The JavaScript regex engine does not support look-behinds

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Michael

"In theory, theory and practice are the same. In practice, they are not."
Albert Einstein

JavaScript is a language. it is used to make small scripts or designing. it does not provide any facility about graphical user interfaces to make GUI pages. 

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online jobs in Pakistan

buckman:

JavaScript is a language. it is used to make small scripts or designing. it does not provide any facility about graphical user interfaces to make GUI pages. 

I don't know how that statement is relevant to the question asked by the original poster or this forum.

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Michael

"In theory, theory and practice are the same. In practice, they are not."
Albert Einstein

Hi people thank you for your replies about the code. This is so important that you have suggested this. I will also try it out because when I used this code before I also faced this type of problem. So I think now it is going to be solved.

Hello,

I am trying to use regular expressions to scan a subdirectory structure and
run sfv and parity file checks on the directory. However, I am having an issue
with my current code using regular expressions to find par2 files. Multiple
par2 files are created for an archive in the following format:

test.par2
test.vol000+01.par2
test.vol000+03.par2
test.vol000+07.par2
and so on...

I only want to select the files name "test.par2" using regular expressions.

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http://www.pakwatan.pk/pakistani-newspapers/

Please do not hijack someone else's post.  Start a new Topic. Also it would be more appropriate to post this in the Regex Construction forum following the guidelines posted there.

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Michael

"In theory, theory and practice are the same. In practice, they are not."
Albert Einstein

As noted, JavaScript does not support lookbehind. However, there is a short collection of functions at https://gist.github.com/2387872 that make it easy to emulate positive and negative lookbehind in JavaScript. (Note that the linked code relies on the XRegExp library.)

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My regex-centric blog :: JavaScript regex tester