45 lines
1.1 KiB
Markdown
45 lines
1.1 KiB
Markdown
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# glsl-token-depth
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[](http://github.com/badges/stability-badges)
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Determine the scope depth of an array of GLSL tokens.
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Useful for inferring the scope of variables in a GLSL shader without having
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to fully parse the source.
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## Usage
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[](https://nodei.co/npm/glsl-token-depth/)
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### `depth(tokens)`
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Where `tokens` is an array of tokens returned from
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[`glsl-tokenizer`](http://github.com/stackgl/glsl-tokenizer). Each token will
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be modified in-place, and given a `depth` property.
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``` javascript
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var tokenize = require('glsl-tokenizer/string')
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var depth = require('glsl-token-depth')
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var fs = require('fs')
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var src = fs.readFileSync('shader.frag', 'utf8')
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var tokens = tokenize(src)
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depth(tokens)
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tokens[0].depth // 0
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tokens[1].depth // 0
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tokens[2].depth // 0
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tokens[3].depth // 0
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tokens[4].depth // 1
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// ...
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```
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## See Also
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* [stackgl/glsl-tokenizer](http://github.com/stackgl/glsl-tokenizer)
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## License
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MIT. See [LICENSE.md](http://github.com/stackgl/glsl-token-depth/blob/master/LICENSE.md) for details.
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