Question 40324 in PHP Question posted in
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PCRE2 (PHP>=7.3) Positive Lookbehind Regex to search for strings separated by ","

I have this string:

'newProductsInfo: [[1] - $2 dollars,[2] New Product,[3] Hello,[4]Same, [5]Value]'

The word 'newProductsInfo', and a space ' ' always precede the array of strings. I want to be able to return

[1] - $2 dollars

[2] New Product

[3] Hello

[4]Same, [5]Value //should be returned since the comma is followed by a space ' '

in the Regex101 site.

Currently, using (?<=newProductsInfo: [)[^,]]+ only returns [1.

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Edit: added possible return types in bubble plugin creator:

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2

Answers


  1. 0

    Your pattern (was tagged JavaScript) only matches [1 because the negated character class [^,]]+ can not cross matching a comma or ]

    If you want the matches only, you can assert newProductsInfo: to the left followed by any character

    Start the match with digits between square brackets up until either the next occurrence preceded by a comma, or the end of the string.

    Using a lookbehind assertion (see the support) for it:

    (?<=newProductsInfo: .*?)[d+].*?(?=,[d+]|$)

    Regex demo

    Edit

    If you want to use PHP:

    (?:newProductsInfo: [|G(?!^)),?K[^,n]+(?>,h+[^,n]+)*

    Explanation

    • (?: Non capture group for the alternatives
      • newProductsInfo: [ Match newProductsInfo: [
      • | Or
      • G(?!^) Assert the current position at the end of the previous match, not at the start
    • ) Close the non capture group
    • ,?K Match an optional comma and forget what is matched so far
    • [^,n]+
    • (?>,h+[^,n]+)* Optionally repeat matching a comma, 1+ spaces and 1+ chars other than , or newline

    Regex demo

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  2. 0

    Here is one approach using match():

    var input = 'newProductsInfo: [[1] - $2 dollars,[2] New Product,[3] Hello,[4]Same, [5]Value]';
var matches = input.replace(/^.*?[(?=[d+])|]$/g, "")
                   .split(/,(?=[d+])/);
console.log(matches);

    The call to replace() strips off the leading/trailing [ and ]. The call to split() splits the input string at every comma which is followed by a numbered bracket term such as [2].

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