How to replace a specific character in a substring using regex?

Question

This question is about Visual Studio Code search box.

I want to replace all the "spaces" by the character "_" inside the my substring with spaces of mystring

for example:

-> From

{
    "Show_details": mystring("my substring with spaces"),
    "Type_of_event": mystring("my substring with spaces2"),
}

-> To

{
    "Show_details": mystring("my_substring_with_spaces"),
    "Type_of_event": mystring("my_substring_with_spaces2"),
}

I only managed to get the `my_substring_with_spaces`. But I do not understand how to proceed further.

Search: mystring\("([a-z]*?( )[a-z]*?)"\)

score 2 · Accepted Answer · answered Nov 13 '20 at 18:17

2

You can use

(?<=mystring\("[^"]*)\s+(?=[^"]*"\))

Details

(?<=mystring\("[^"]*) - immediately to the left, there must be mystring(" and then 0 or more chars other than "
\s+ - one or more whitespaces (remove + if two consecutive spaces must be converted to two consecutive _s)
(?=[^"]*"\)) - immediately to the right, there must be 0 or more chars other than " and then ").

See the screenshot:

answered Nov 13 '20 at 18:17

Wiktor Stribiżew

1

regex killer – Mike Casan Ballester Nov 13 '20 at 18:25
In the `Edit->Find in Files` it shows the error `Regex parse error: Lookbehind assertion is not fixed length`. Any idea ? – Mike Casan Ballester Nov 16 '20 at 09:08
1

@micaball Yes, do not use this regex in *Find in files*, it uses a different regex flavor. – Wiktor Stribiżew Nov 16 '20 at 09:13

1 Answers1