Hi Vimmers,
I'm writing a syntax file for Swift language. Apple Swift. What I'm trying
to accomplish is have different regions for a function call and a function
definition. This is not so difficult because a function definition will
always be preceded by the keyword 'func'. I want two different regions
because Swift, like Objective-C, has parameter labels that can be declared
on its functions. For example:
func doSomething(param1: Int, paramLabel2 param2: Int)
When I call that function I should write:
doSomething(1, paramLabel2: 0)
What I want with the syntax file is to highlight the parameters labels in
the function definition and also in the function call. So I am trying this
set of groups:
syn match swiftDelimiter "[\[]{}()]" contained
syn region swiftBlock transparent matchgroup=swiftDelimiter start=/{/
end=/}/ fold
syn region swiftArray transparent matchgroup=swiftDelimiter start=/\[/
end=/\]/
syn region swiftBraces transparent matchgroup=swiftDelimiter
start=/\\\@<!(/ end=/)/
syn region swiftFunDecl transparent matchgroup=swiftDelimiter
start="^\%(.*\%(func\s\+\k\+\|[^.]init[?]\?\)\)\s*\zs(" end=")"
contains=ALLBUT,swiftParam
syn match swiftParam contained containedin=swiftBraces display
/\k\+\s*\%(:\)\@=/
syn match swiftLabel contained display /\(_\|\k\+\)\(\s\+\k\+\s*:\)\@=/
containedin=swiftBraces
The 'swiftFunDecl' matches every function definition and the 'swiftBraces'
should match only other places where 'swiftFunDecl' doesn't match. But that
isn't happening. The 'swiftBraces' still matches where 'swiftFunDecl'
matches and, therefore, parameters are highlighted in the function
definition where only labels should be highlighted.
I can't see what I'm doing wrong. Could someone help me with that?
Thanks in advance,
Alessandro Antonello
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