Package Exports

pegjs-require-import

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (pegjs-require-import) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

PEG.js Require Extension

A simple require extension for PEG.js that supports importing syntax

If you're using webpack, it's recommended to use pegjs-import-loader

Install

npm install --save-dev pegjs-require-import

Usage

Importing Syntax

parser.pegjs:

{
    const str = 'This is just an example string';
    function concat(a, b) {
        return a.concat(b);
    }
}
Expression
  = head:Term tail:(_ ("+" / "-") _ Term)* {
      return tail.reduce(function(result, element) {
        if (element[1] === "+") { return result + element[3]; }
        if (element[1] === "-") { return result - element[3]; }
      }, head);
    }
    
Factor
  = "(" _ expr:Expression _ ")" { return expr; }
  / Integer
 
@import './base-rules.pegjs'
@import './keywords.pegjs'

Import syntax is the same as in pegjs-import-loader

Generate a parser in JS code using require

const pegjs_require = require('pegjs-require-import');
const parser = pegjs_require('./parser.pegjs', {
  format: 'commonjs',
  dependencies: {
    _: 'lodash'
  }
});
const result = parser.parse(content);

API

pegjs_require(file_path, options)

options

Type: object
See more about PEG.js options