glsl-tokenizer

r/w stream of glsl tokens

glsl-tokenizer

Maps GLSL string data into GLSL tokens, either synchronously or using a streaming API.

var tokenString = require('glsl-tokenizer/string')
var tokenStream = require('glsl-tokenizer/stream')
var fs = require('fs')
 
// Synchronously: 
var tokens = tokenString(fs.readFileSync('some.glsl'))
 
// Streaming API: 
fs.createReadStream('some.glsl')
  .pipe(tokenStream())
  .on('data', function(token) {
    console.log(token.data, token.position, token.type)
  })

API

Returns an array of tokens given the GLSL source string src

Emits 'data' events whenever a token is parsed with a token object as output.

Tokens

{ 'type': TOKEN_TYPE
, 'data': "string of constituent data"
, 'position': integer position within the GLSL source
, 'line': line number within the GLSL source
, 'column': column number within the GLSL source }

The available token types are:

  • block-comment: /* ... */
  • line-comment: // ... \n
  • preprocessor: # ... \n
  • operator: Any operator. If it looks like punctuation, it's an operator.
  • float: Optionally suffixed with f
  • ident: User defined identifier.
  • builtin: Builtin function.
  • eof: Emitted on end; data will === '(eof)'.
  • integer
  • whitespace
  • keyword

License

MIT, see LICENSE.md for further information.