regex - How to extract commas in between square brackets in notepad++?

Question

For example:

[TEXT1,TEXT2,TEXT3]

my expression: [[].*,.*[]]

Finds strings with commas (in between brackets,) but I only want to explicitly match the comma that exists in the square brackets.

I need to replace the commas with spaces - but only in the square brackets.

I've tried [[],[]] but that doesn't work -

[(.*?)] will find the text in between as well - but I do not want the entire string.

Can anyone suggest what I need to do to just find commas in between the brackets?

Answer 1

Find what:

(?:[|(?!^)G)[^,]]*K,

Replace with:
space

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Break-down:

• (?:[|(?!^)G) Matches the opening [ or the end of last match (?!^)G.
• [^,]]* Consumes all chars until the next comma.
• K Tells the regex engine to discard what it has matched so far.
• , Finally matches the comma.