consumed

Easy string consumption for parsing and lexing.

Installation

npm install --save consumed

Summary

Create a new instance of the Consumed object and pass in a string. Then you can use a single letter or a regex pattern to grab part of the string and remove it from the original.

Usage

Node

var Consumed = require('consume');

Browser

Serve dist/consumed.js or dist/consumed.min.js:

<script src="dist/consumed.min.js"></script>
<script>
  var consumer = new Consumed('foo');
</script> 

This script is only 446 bytes!

Example

var consumer = new Consumed('foo bar baz');
 
// Get up to the first instance of a letter
var match = consumer.consumeTill('b');
console.log(match); // 'foo '
console.log(consumer.str); // 'bar baz'
 
// Get up to the first instance of a letter, but include that letter
match = consumer.consumeTill('b', /*inclusive=*/true);
console.log(match); // 'bar b'
console.log(consumer.str); // 'az'
 
// Or match a pattern
consumer = new Consumed('foo bar baz');
match = consumer.consume(/.*(.)\1/);
console.log(match); // 'foo'
console.log(consumer.str); // ' bar baz'

Contributing

Please see the contribution guidelines.