JuliaLang/julia
Auf GitHub ansehenreplace: allow transform function as first argument?
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#24.598 geöffnet am 13. Nov. 2017
good first issuehelp wantedstrings
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Beschreibung
The replace function allows a string, an s"..." replacement specifier or a function as its third argument. For the sake of do syntax, it might make sense to support the function as the first argument, like so:
julia> replace("Hello, world.", r"\w+") do word
n = 0
for c in word
n += lowercase(c) in "aeiou"
end
return n
end
"2, 1."
If someone decides to do this, while they're at it, an explanation of replacement patterns – i.e. s"..." strings and some more examples in the replace docs wouldn't hurt. E.g.:
julia> replace("Hello, world.", r"(\w+)(\W+)(\w+)", s"\3\2\1")
"world, Hello."