Guesslang

Guesslang detects the programming language of a given source code:

echo '
package main
import "fmt"

func main() {
    fmt.Println("My mascot is a gopher and Google loves me. Who am I?")
}
' | guesslang
⟶ Programming language: Go

Guesslang supports

54 programming languages

| Languages | | | | | |------------|----------------|---------------|----------------|--------------| |

Assembly

Batchfile

C

C#

C++

Clojure

CMake

COBOL

CoffeeScript

CSS

CSV

Dart

DM

Dockerfile

Elixir

Erlang

Fortran

Go

Groovy

Haskell

HTML

INI

Java

JavaScript

JSON

Julia

Kotlin

Lisp

Lua

Makefile

Markdown

Matlab

Objective-C

OCaml

Pascal

Perl

PHP

PowerShell

Prolog

Python

R

Ruby

Rust

Scala

Shell

SQL

Swift

TeX

TOML

TypeScript

Verilog

Visual Basic

XML

YAML

With a guessing accuracy higher than 90%.

Apps powered by Guesslang

Microsoft Visual Studio Code, automatic language detection

Visual Studio Code detects the programming language of the source code that you paste into the editor using Guesslang machine learning model.

Chameledit

Chameledit is a simple web-editor that automatically highlights your code.

Other projects...

• Pasta, the Slack bot that pretty-pastes source code.
• GG, a silly guessing game.

Documentation

• Guesslang documentation is available at https://guesslang.readthedocs.io/en/latest/

• Guesslang language detection explained here https://guesslang.readthedocs.io/en/latest/contents.html#how-does-guesslang-guess

• Guesslang is based on Tensorflow machine learning framework

Installation

• Python 3.7+ is required

• Install the latest stable version:

pip3 install guesslang

• or install Guesslang from source code:

pip3 install .

• Windows specific

To run Tensorflow on Microsoft Windows you need to install Visual C++ runtime libraries, available on Microsoft website

Guesslang command line

• Show all available options

guesslang --help

• Detect the programming language of

  /etc/bashrc

  configuration file:

guesslang /etc/bashrc

⟶ Programming language: Shell

• Detect the programming language of a given text:

echo '
/** Turn command line arguments to uppercase */
object Main {
  def main(args: Array[String]) {
    val res = for (a 

• Show the detection probabilities for a given source code:

echo "
def qsort(items):
    if not items:
        return []
    else:
        pivot = items[0]
        less = [x for x in items if x <  pivot]
        more = [x for x in items[1:] if x >= pivot]
        return qsort(less) + [pivot] + qsort(more)


if name == 'main':
    items = [1, 4, 2, 7, 9, 3]
    print(f'Sorted: {qsort(items)}')
" | guesslang --probabilities
Language name       Probability
Python               74.80%
Haskell               6.73%
CoffeeScript          5.32%
Groovy                1.95%
Markdown              0.93%
...

Guesslang Python package

• Guesslang can be used as a Python package. Package documentation available here

from guesslang import Guess


guess = Guess()
name = guess.language_name("""
    % Quick sort
-module (recursion).
-export ([qsort/1]).

qsort([]) -> [];
qsort([Pivot|T]) ->
      qsort([X || X = Pivot]).
""")
print(name)  # ⟶ Erlang

License and credits

• Guesslang documentation

• Gesslang training dataset created with GuesslangTools

• Guesslang developped with Tensorflow

• Guesslang icon created with AndroidAssetStudio and Eduardo Tunni's Warnes font

• Example source codes used here retrieved from Rosetta Code

• Guesslang — Copyright (c) 2021 Y. SOMDA, MIT License