Swiftlint: custom rules for colon and brace

[Coeur]

I'd like to know if I can configure my .swiftlint.yml for those custom behaviour checks:

1. similar to rule colon, but with a space before the colon for literals. i.e.:
   var headers = [String : String]() would be accepted
   var headers = [String: String]() would trigger a warning for missing space

2. similar to rule opening_brace, but with a newline before the brace for struct/class/enum/extension. i.e.:

3. This would be accepted:

   extension String
   {

4. This would trigger a warning for missing newline

   extension String {

[Trifusion]

for # 2 you can put this in your .swiftlint.yml:

custom_rules:
invalid_open_brace:
name: "Open brace should start on its own line"
regex: "S[ t]+{"
message: "Open brace should start on its own line"
severity: warning

[Ohad-Maor]

@Trifusion It doesn't work.
I am actually also looking for this solution and I figured that we need do do 2 regex, like the open_brace build-in-rule but I have no idea how to do it inside the .swiftlint.yml

[remaerd]

I don't think giving thumbs down will motivate anyone to implement this features. If @Ohad-Maor have nothing to contribute, Please be patient and don't sh*t someone who are trying to help.

@Trifusion 's regex was wrong. I tried to wrote one too ([\\t]*.+{(?!.*}\\n)) but it's not working appropriately. If there's a working Regex who can help, I will learn and try to make commits into the related rule file.

Cheers.

[kevenbauke]

We ended up using:

k&r_style_opening_braces:
    name: "K&R style braces used"
    message: "Curly brace must be on it's own line (Allman style)"
    regex: '[a-zA-Z)] ?\{$'
    include: "*.swift"

It says: check for a letter or a round brace, then an optional space, afterwards the curly brace and then the end of the line. Probably not bulletproof but works OK so far.

[stale[bot]]

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