CmdLineParser.js

cmdline-parser.js is a tool allowing you to retrieve all the information and components of a command line 🐚

Features ✨

• Can parse multiple commands
• Can parse quotes in arguments
• Supports multiple tokens
  • >, >>, <, <<, |, ||, &&
• Supports node.js and browser
• Supports multiple parser instances
• Supports custom parser settings (disable tokens...)

JsDelivr

<script src="https://cdn.jsdelivr.net/gh/SkwalExe/[email protected]/dist/cmdlineparser.min.js"></script>

NPM module

Install the npm module

npm install cmdline-parser

And import it in your project

const CmdLineParser = require('cmdline-parser');

let myParser = new CmdLineParser();

Setting up

You can import the library into you website with JsDelivr or, you can use the npm module and import it in your project.

Parsing your first commands ✨

Parsing a command line

let command = "echo Hello; echo World";
let parsed = myParser.parse(command);

The parse method returns an array of Commands (because a command line can contain multiple commands command1; command2).

Parsing a single command

let command = "echo Hello";
let parsed = myParser.parseCommand(command);

The parseCommand method returns a Command object.

Parsing arguments

You can get an array of arguments from a string using the parseArgs method:

let args = myParser.parseArgs("echo 'Hello World' Hello universe");
// ['echo', 'Hello World', 'Hello', 'universe']

Supports quotes ✨

The Command object

The Command object is a representation of a command and has the following properties:

• invalid: true if the command is invalid (for example if quotes are not closed)
• invalidReason: the reason why the command is invalid as a string
• args: array of arguments passed to the command
• name: the name of the command
• text: the original command line

We also parse redirectors etc like >, >>, <, <<, |, ||, && inside the corresponding token

Example

let command = myParser.parseCommand("echo 'Hello World' > file.txt && echo 'Hello universe'");

console.log(command[">"]); // [ 'file.txt' ]
console.log(command["&&"]); // Command { name: 'echo', ... }

final

If you have any problem, don't hesitate to open an issue

contributing

1. Start by forking this repository

2. Then clone your fork to your local machine.

git clone https://github.com/your-username/cmdline-parser.js.git

3. Install dev dependencies

npm install --save-dev

4. Create a new branch

git checkout -b super-cool-feature

5. Then make your changes

6. Update the changelog and version number if needed (using Semantic Versioning) also, update the version number in the JsDelivr links

# bug fix
npm version patch --no-git-tag-version

# add a new feature 
npm version minor --no-git-tag-version

# changes that break backwards compatibility
npm version major --no-git-tag-version

7. List and correct linting errors

npm run lint

8. Update the minified/browser version of the library

npm run build

9. Once you're done, commit your changes and push them to the remote repository.

git add --all
git commit -m "Add super-cool-feature"
git push origin super-cool-feature

10. Then, open a pull request on GitHub from your fork.
11. Go to this link
12. Click compare across forks
13. On the right, on head repository select your fork
14. And on compare select the branch you just created
15. Click on Create Pull Request and submit your pull request