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Regex

Searching

Loop through a string matching a regex and performing an action for each match

Create a list [fish1,cow3,boat4] when matching "(fish):1 sausage (cow):3 tree (boat):4" with regex /$(\w+)$:(\d+)/

ruby

list = text.scan(/$(\w+)$:(\d+)/).collect{|x| x.join}

ruby

list=[]
text.scan(/$(\w+)$:(\d+)/) {
list << $1+$2
}

cpp C++/CLI .NET 2.0

Match^ match = Regex::Match("(fish):1 sausage (cow):3 tree (boat):4", "\$(\\w+)\$:(\\d+)");

while (match->Success)
{
list->Add(match->Groups[1]->Captures[0]->ToString() + match->Groups[2]->Captures[0]->ToString());
match = match->NextMatch();
}

fsharp

let list = new ResizeArray<string>()
let mutable regmatch = (Regex.Match("(fish):1 sausage (cow):3 tree (boat):4", "\$(\\w+)\$:(\\d+)"))

while regmatch.Success do
list.Add(regmatch.Groups.[1].Captures.[0].ToString() ^ regmatch.Groups.[2].Captures.[0].ToString())
regmatch <- regmatch.NextMatch()
done

for word in list do printfn "%s" word done

fsharp

// A solution without mutation:
let results =
Regex.Matches("(fish):1 sausage (cow):3 tree (boat):4", "\$(\\w+)\$:(\\d+)")
|> Seq.cast
|> Seq.map (fun (regmatch: Match) ->
regmatch.Groups.[1].Captures.[0].ToString() + regmatch.Groups.[2].Captures.[0].ToString()
)
|> List.ofSeq

groovy

list = (text =~ /$(\w+)$:(\d+)/).collect{ it[1] + it[2] }

groovy

list = []
text.eachMatch(/$(\w+)$:(\d+)/){
list << it[1] + it[2]
}

groovy

list = []
text.eachMatch(/$(\w+)$:(\d+)/){ m, name, number ->
list << "$name$number"
}

groovy

list = (text =~ /$(\w+)$:(\d+)/).collect{ all, name, num -> "$name$num" }

groovy 1.6.1+

list = text.findAll(regex){ _, name, num -> "$name$num" }

groovy 1.6.1+

list = text.findAll(regex){ it[1] + it[2] }

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