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105 lines
4.0 KiB
105 lines
4.0 KiB
# pug-load |
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The pug loader is responsible for loading the depenendencies of a given pug file. It adds `fullPath` and `str` properties to every `Include` and `Extends` node. It also adds an `ast` property to any `Include` nodes that are loading pug and any `Extends` nodes. It then recursively loads the dependencies of any of those included files. |
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[](https://travis-ci.org/pugjs/pug-load) |
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[](https://david-dm.org/pugjs/pug?path=packages/pug-load) |
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[](https://david-dm.org/pugjs/pug?path=packages/pug-load&type=dev) |
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[](https://www.npmjs.org/package/pug-load) |
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[](https://codecov.io/gh/pugjs/pug-load) |
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## Installation |
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npm install pug-load |
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## Usage |
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```js |
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var load = require('pug-load'); |
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``` |
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### `load(ast, options)` |
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### `load.string(str, filename, options)` |
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### `load.file(filename, options)` |
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Loads all dependencies of the Pug AST. `load.string` and `load.file` are syntactic sugar that parses the string or file instead of you doing it yourself. |
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`options` may contain the following properties: |
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- `lex` (function): **(required)** the lexer used |
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- `parse` (function): **(required)** the parser used |
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- `resolve` (function): a function used to override `load.resolve`. Defaults to `load.resolve`. |
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- `read` (function): a function used to override `load.read`. Defaults to `load.read`. |
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- `basedir` (string): the base directory of absolute inclusion. This is **required** when absolute inclusion (file name starts with `'/'`) is used. Defaults to undefined. |
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The `options` object is passed to `load.resolve` and `load.read`, or equivalently `options.resolve` and `options.read`. |
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### `load.resolve(filename, source, options)` |
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Callback used by `pug-load` to resolve the full path of an included or extended file given the path of the source file. |
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`filename` is the included file. `source` is the name of the parent file that includes `filename`. |
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This function is not meant to be called from outside of `pug-load`, but rather for you to override. |
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### `load.read(filename, options)` |
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Callback used by `pug-load` to return the contents of a file. |
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`filename` is the file to read. |
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This function is not meant to be called from outside of `pug-load`, but rather for you to override. |
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### `load.validateOptions(options)` |
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Callback used `pug-load` to ensure the options object is valid. If your overriden `load.resolve` or `load.read` uses a different `options` scheme, you will need to override this function as well. |
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This function is not meant to be called from outside of `pug-load`, but rather for you to override. |
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### Example |
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```js |
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var fs = require('fs'); |
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var lex = require('pug-lexer'); |
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var parse = require('pug-parser'); |
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var load = require('pug-load'); |
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// you can do everything very manually |
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var str = fs.readFileSync('bar.pug', 'utf8'); |
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var ast = load(parse(lex(str, 'bar.pug'), 'bar.pug'), { |
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lex: lex, |
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parse: parse, |
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resolve: function (filename, source, options) { |
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console.log('"' + filename + '" file requested from "' + source + '".'); |
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return load.resolve(filename, source, options); |
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} |
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}); |
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// or you can do all that in just two steps |
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var str = fs.readFileSync('bar.pug', 'utf8'); |
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var ast = load.string(str, 'bar.pug', { |
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lex: lex, |
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parse: parse, |
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resolve: function (filename, source, options) { |
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console.log('"' + filename + '" file requested from "' + source + '".'); |
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return load.resolve(filename, source, options); |
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} |
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}); |
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// or you can do all that in only one step |
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var ast = load.file('bar.pug', { |
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lex: lex, |
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parse: parse, |
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resolve: function (filename, source, options) { |
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console.log('"' + filename + '" file requested from "' + source + '".'); |
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return load.resolve(filename, source, options); |
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} |
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}); |
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``` |
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## License |
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MIT
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