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javascriptphpregexpcrepcre2

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.

enter image description here

Edit: added possible return types in bubble plugin creator:

enter image description here

Solution

  • 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