parse-base64vlq-mappings

0.1.4 • Public • Published

parse-base64vlq-mappings build status

Parses out base64 VLQ encoded mappings.

The code is mostly lifted from mozilla's source-map module in order to separate out the parse function into its own module.

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.

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Install

npm i parse-base64vlq-mappings

Weekly Downloads

348

Version

0.1.4

License

MIT

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Collaborators

  • thlorenz