GC warnings processing script for DMD.

vgc_source.d

import std.stdio, std.string, std.regex, std.algorithm, std.range;

struct Result{
    string file, line, reason;
}
void main(){
    auto re = regex(`(.*\\\w+)\.d\((\d+)\):\s*vgc:\s*(.*)`);
    //writeln(`std\variant.d(236): vgc: 'new' causes GC allocation`.match(re));
    Result[] results;
    foreach(line; stdin.byLine){
        auto m = line.idup.matchFirst(re);
        if(m){
            results ~= Result(m[1].replace("\\", "/"), m[2], m[3]);
        }
    }
    sort!((a,b) => a.file < b.file && a.line < b.line)(results);
    results = uniq(results).array;

    string linkTempalte =
`[%s:L%s](https://github.com/D-Programming-Language/phobos/blob/master/%s.d#L%s)`;
    writeln("|module| function |reason|action|");
    writeln("|------|----------|------|------|");
    foreach(r; results){
        //writeln(r.file, ",", r.line, ",", r.reason);
        auto mod = r.file.replace("/", ".");
        auto link = format(linkTempalte, mod, r.line, r.file, r.line);
        writefln("| %s | | %s | |", link, r.reason,);
    }
}