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void main()
{
import std.regex;
import std.algorithm : joiner, map;
string[] messages;
auto matchToRefs(M)(M m)
{
return m.captures[0].splitter(regex(`foo`));
}
auto issueRE = regex("foo");
messages.map!(
m => m.matchAll(issueRE)
.map!matchToRefs
).joinerjoinerjoinerjoiner;
}