To learn more about RegEx, I can recommend Regexr.com http://regexr.com/3coa1 (with your case http://regexr.com/3coa1). It is based on the JavaScript implementation, so there are limits, but it's a good start.
As Carpii said, you define “capture groups” with parentheses. TextMate Find & Replace behaves like PHP's preg_match http://php.net/manual/en/function.preg-match.php, so the “entire match” is in |$0|. In this case you need the entire line unbroken, so that's why |$0| works.
If instead you want to change:
|PRODUCTS 2::prnt_material_width |
to
|getValue( PRODUCTS 2 ; prnt_material_width ; 1) ;|
You would need to match the two groups separately:
|^(.+)::(.+)$|
Replace with:
|getValue( $1 ; $2 ; 1) ;|
I use |+| instead of |*|, because |+| requires a minimum of 1 character. It's a habit.
And of course there are many practical applications to knowing regular expressions http://xkcd.com/208.
Rasmus
On 07/02/16 19.14, Carpii UK wrote:
Can you please help me understand what is happening between these two expressions? ^ beginning of the line .*::.* $ end of the line^ match the beginning of the line
.* followed by 0 or more characters (apart from newline)
:: followed by 2 literal colon characters
.* followed by 0 or more characters (apart from newline)
$ followed by the end of the line (a \n character)
also… can you please tell me what the zero after the $ doing in this string? getValue( $0; 1) ;The $0 is a way of referencing one of the captures the regular expression made I'm not entirely sure this capturing syntax is right, normally I use brackets to capture, yet it seems to work in textmate.
We need to do this otherwise we don't know what to output after getValue(
On Feb 7, 2016, at 7:29 AM, Carpii UK <carpii.uk@gmail.com <mailto:carpii.uk@gmail.com> > wrote: Try using a regular expression like this.. http://carpii.homeip.net/skitch/Find-20160207-132857.png The expression is ^.*::.*$_______________________________________________ textmate mailing list textmate@lists.macromates.com <mailto:textmate@lists.macromates.com> http://lists.macromates.com/listinfo/textmate
textmate mailing list textmate@lists.macromates.com http://lists.macromates.com/listinfo/textmate