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glsl-token-inject-block

1.1.0 • Public • Published

glsl-token-inject-block

unstable

Injects a "block" of GLSL tokens into a shader, after any #version, #extension and precision statements. This will pad the new tokens with the necessary amount of newlines (but no more).

This module ignores token line, column and position.

Example

Your source:

var tokenizer = require('glsl-tokenizer')
var inject = require('glsl-token-inject-block')
var stringify = require('glsl-token-string')
 
var tokens = tokenizer(shaderInput)
var newToken = { 
  type: 'preprocessor', 
  data: '#define FOOBAR' 
}
 
var source = stringify(inject(tokens, newToken))
console.log(source)

The following shader input:

// some comment 
#version 300 es
#extension SOME_EXTENSION : enable
 
void main() {}

Results in the following injected define:

// some comment 
#version 300 es
#extension SOME_EXTENSION : enable
#define FOOBAR
 
void main() {}

Usage

NPM

tokens = inject(tokens, newTokens)

For the given shader source (tokens), injects newTokens into them, assuming the new tokens are a "block" of code that should be placed on its own line.

newTokens can be a single token object, or an array of token objects.

Modifies tokens in place and returns it.

License

MIT, see LICENSE.md for details.

install

npm i glsl-token-inject-block

Downloadsweekly downloads

27,633

version

1.1.0

license

MIT

homepage

github.com

repository

Gitgithub

last publish

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