The Computer Language
Benchmarks Game

regex-redux F# .NET Core #2 program

source code

// The Computer Language Benchmarks Game
// http://benchmarksgame.alioth.debian.org/
//
// regex-dna program contributed by Valentin Kraevskiy
// converted from regex-dna program

open System.Text.RegularExpressions

let regex s = Regex (s, RegexOptions.Compiled)
let input = stdin.ReadToEnd ()
let text = (regex ">.*\n|\n").Replace (input, "")

["agggtaaa|tttaccct"
 "[cgt]gggtaaa|tttaccc[acg]"
 "a[act]ggtaaa|tttacc[agt]t"
 "ag[act]gtaaa|tttac[agt]ct"
 "agg[act]taaa|ttta[agt]cct"
 "aggg[acg]aaa|ttt[cgt]ccct"
 "agggt[cgt]aa|tt[acg]accct"
 "agggta[cgt]a|t[acg]taccct"
 "agggtaa[cgt]|[acg]ttaccct"]
|> List.iter (fun s ->
         printf "%s %i\n" s ((regex s).Matches text).Count)

let newText =
    ["tHa[Nt]", "<4>"
     "aND|caN|Ha[DS]|WaS", "<3>"
     "a[NSt]|BY", "<2>"
     "<[^>]*>", "|"
     "\\|[^|][^|]*\\|" , "-"]
     |> List.fold (fun s (code, alt) -> 
            (regex code).Replace (s, alt)) text

printf "\n%i\n%i\n%i\n" input.Length text.Length newText.Length
    

notes, command-line, and program output

NOTES:
64-bit Ubuntu quad core
F# 4.1.0
dotnet 1.0.1 005db40cd1
"System.GC.Server": true


Mon, 20 Mar 2017 18:20:43 GMT

MAKE:
cp regexredux.fsharpcore-2.fsharpcore Program.fs
cp Include/fsharpcore/tmp.fsproj .
cp Include/fsharpcore/runtimeconfig.template.json .
mkdir obj
cp Include/fsharpcore/project.assets.json ./obj
cp Include/fsharpcore/tmp.fsproj.nuget.g.props ./obj
cp Include/fsharpcore/tmp.fsproj.nuget.g.targets ./obj
/usr/bin/dotnet build -c Release
Microsoft (R) Build Engine version 15.1.548.43366
Copyright (C) Microsoft Corporation. All rights reserved.

  tmp -> /home/dunham/benchmarksgame_quadcore/regexredux/tmp/bin/Release/netcoreapp1.1/tmp.dll

Build succeeded.
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:11.94
12.43s to complete and log all make actions

COMMAND LINE:
/usr/bin/dotnet ./bin/Release/netcoreapp1.1/tmp.dll 0 < regexredux-input5000000.txt

PROGRAM OUTPUT:
agggtaaa|tttaccct 356
[cgt]gggtaaa|tttaccc[acg] 1250
a[act]ggtaaa|tttacc[agt]t 4252
ag[act]gtaaa|tttac[agt]ct 2894
agg[act]taaa|ttta[agt]cct 5435
aggg[acg]aaa|ttt[cgt]ccct 1537
agggt[cgt]aa|tt[acg]accct 1431
agggta[cgt]a|t[acg]taccct 1608
agggtaa[cgt]|[acg]ttaccct 2178

50833411
50000000
27388361