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NHDaly/julia-regex-replace-function-call-with-macro.jl

Created October 24, 2018 22:08
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Regex: remove parens to turn a julia function call into a macro call
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julia-regex-replace-function-call-with-macro.jl
julia> m = "call( a( x()-1 ), 2+2 )"
>> "call( a( x()-1 ), 2+2 )"
julia> replace(m, r"a(\(((?>[^()]|(?1))*)\))" => s"@b \2")
>> "call( @b x()-1 , 2+2 )"
julia> # You can see the two capture groups here: the first around the parens (used for recursion), and the second inside the parens (for substitution).
julia> match(r"a(\(((?>[^()]|(?1))*)\))", m)
>> RegexMatch("a( x()-1 )", 1="( x()-1 )", 2=" x()-1 ")
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