Regex based search and replace in vscode

Question

In VSCode: I would like to do a wildcard replace of:

rgb(1, 1, 1 ,1)

with:

rgba(1, 1,1 ,1)

Essentially when an alpha value is specified, the datatype should be changed from "rgb" to "rgba". Where alpha is not specified e.g rgb(1,1,1) - they should remain unchanged.

I tried:

Find: rgb(.*,.*,.*,.*) Replace: rgba($1)

which obviously did not work. What would be the correct regex syntax to achieve this? Thank you.

Update: Please note that some locations there are spaces before/after commas. Not consistent.

Maybe `rgb$(\d+,\d+,d+,\d+)$` would do it in that case. (That's a bit looser than `0-255` but you can change `\d` to a range if that works (e.g. https://stackoverflow.com/questions/31684083/validate-if-input-string-is-a-number-between-0-255-using-regex)) — user3783243, Aug 14 '20 at 19:03
Loose is fine. But it did not work for me. VSCode search did not recognize any text with that pattern (which I know it should have). Thanks. — SingularRiver, Aug 14 '20 at 19:08
activate the regex search with the `.*` button in the find box — rioV8, Aug 14 '20 at 19:17
`rgb$(\d+,\d+,\d+,\d+)$` works. Missing a`\\` in @user3783243's regex (3rd number). — Mark, Aug 14 '20 at 20:01
I found the issue. In some locations, there were space before/after commas...but the spaces were not consistent. I should have realized that. My bad. With that - I use the expression: `rgb$(.*\d+.*,.*\d+.*,.*\d+.*,.*\d+.*)$` and it worked great. I used `rgba($1)` to replace. Thank you everyone for your inputs. — SingularRiver, Aug 14 '20 at 20:44

score 1 · Answer 1 · answered Aug 14 '20 at 21:00

1

To match with any amount of whitespace around the numbers:

Search: rgb(?=\((\s*\d+\s*,){3}\s*\d+\s*\))
Replace: rgba

answered Aug 14 '20 at 21:00

Bohemian

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score 0 · Answer 2 · answered Aug 14 '20 at 21:08

0

Search: rgb\(([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\)
Replace: rgba($1, $2, $3, $4)

This will match any amount of whitespace and will fix them after replace.

answered Aug 14 '20 at 21:08

Dmitriy Vornychev

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Regex based search and replace in vscode

2 Answers2