How to replace captured group with uppercase version

[daobrien]

I have a Vale style that uses the substitution extension to update various "as-a-Service" abbreviations, the regex for which uses capture groups:

extends: substitution
message: "Use %s instead of '%s'."
level: warning
ignorecase: false
action:
  name: replace
swap:
# -as-a-Service tests
  - '([a-zA-Z]*)[- ]?as[-| ]a[-| ][Ss]ervice': $1-as-a-Service

This mostly works, but I need to ensure that $1 is correctly replaced. E.g., if the string were "software-as-a-Service" then the replacement needs to be "Software-as-a-Service".

I probably need to create two capture groups, one for the first char and one for the remaining chars, so that I can uppercase only the first character. But, I don't know if that's even possible.

Appreciate any help.
Thanks.
David

[jdkato]

Are you saying you want to match the case of whatever you found or always make it capital?

[daobrien]

Always make it capital.
Should someone write "software as a Service" it must be replaced with "Software-as-a-Service". Only that first character, and not "SOFTWARE".

To be even more particular, I'd like to match "SOFTWARE AS A SERVICE" and similar and replace with "Software-as-a-Service".

[jdkato]

You’ll need to do it with a script.

[daobrien]

ok, that will keep me busy for a little while :)

Thanks for the quick response 👍

[jdkato]

I’m on a phone right now, so I can’t test it but this should be close:

text := import("text")

product := text.re_replace(`(?i)[- ]?as[-| ]a[-| ]service`, match, "")
product = text.trim_space(product)

lower := text.to_lower(product)
result := text.to_upper(string(lower[0])) + lower[1:] + "-as-a-Service"

suggestions = [result]