https://github.com/thlorenz/parse-base64vlq-mappings

Parses out base64 VLQ encoded mappings.
https://github.com/thlorenz/parse-base64vlq-mappings

Last synced: 13 days ago
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Parses out base64 VLQ encoded mappings.

• Host: GitHub
• URL: https://github.com/thlorenz/parse-base64vlq-mappings
• Owner: thlorenz
• License: mit
• Created: 2013-03-13T11:30:25.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2013-07-06T01:36:50.000Z (over 11 years ago)
• Last Synced: 2024-12-10T08:27:08.054Z (about 1 month ago)
• Language: JavaScript
• Size: 154 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# parse-base64vlq-mappings [![build status](https://secure.travis-ci.org/thlorenz/parse-base64vlq-mappings.png)](http://travis-ci.org/thlorenz/parse-base64vlq-mappings)

Parses out base64 VLQ encoded mappings.

The code is mostly lifted from [mozilla's source-map module](https://github.com/mozilla/source-map) in order to separate

out the parse function into its own module.

```js

var parse = require('parse-base64vlq-mappings');

var mappings = parse('AAAA;AACA;AACA;AACA;AACA');

console.log(mappings);

```

```

[ { generated: { line: 1, column: 0 },

    original: { line: 1, column: 0 } },

  { generated: { line: 2, column: 0 },

    original: { line: 2, column: 0 } },

  { generated: { line: 3, column: 0 },

    original: { line: 3, column: 0 } },

  { generated: { line: 4, column: 0 },

    original: { line: 4, column: 0 } },

  { generated: { line: 5, column: 0 },

    original: { line: 5, column: 0 } } ]

```

## Caveat

Main intended use is either for testing generated mappings or to add offsets to existing mappings.

Therefore is is assumed that all mappings relate to the same generated/original file, i.e. only information about

generated line and column vs. original line and column is preserved.

Additionally all name information is disregarded during the parse.