mirror of https://github.com/jkjoy/sunpeiwen.git
106 lines
4.1 KiB
Markdown
106 lines
4.1 KiB
Markdown
# pug-load
|
|
|
|
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.
|
|
|
|
[](https://travis-ci.org/pugjs/pug-load)
|
|
[](https://david-dm.org/pugjs/pug?path=packages/pug-load)
|
|
[](https://david-dm.org/pugjs/pug?path=packages/pug-load&type=dev)
|
|
[](https://www.npmjs.org/package/pug-load)
|
|
[](https://codecov.io/gh/pugjs/pug-load)
|
|
|
|
## Installation
|
|
|
|
npm install pug-load
|
|
|
|
## Usage
|
|
|
|
```js
|
|
var load = require('pug-load');
|
|
```
|
|
|
|
### `load(ast, options)`
|
|
### `load.string(str, filename, options)`
|
|
### `load.file(filename, options)`
|
|
|
|
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.
|
|
|
|
`options` may contain the following properties:
|
|
|
|
- `lex` (function): **(required)** the lexer used
|
|
- `parse` (function): **(required)** the parser used
|
|
- `resolve` (function): a function used to override `load.resolve`. Defaults to `load.resolve`.
|
|
- `read` (function): a function used to override `load.read`. Defaults to `load.read`.
|
|
- `basedir` (string): the base directory of absolute inclusion. This is **required** when absolute inclusion (file name starts with `'/'`) is used. Defaults to undefined.
|
|
|
|
The `options` object is passed to `load.resolve` and `load.read`, or equivalently `options.resolve` and `options.read`.
|
|
|
|
### `load.resolve(filename, source, options)`
|
|
|
|
Callback used by `pug-load` to resolve the full path of an included or extended file given the path of the source file.
|
|
|
|
`filename` is the included file. `source` is the name of the parent file that includes `filename`.
|
|
|
|
This function is not meant to be called from outside of `pug-load`, but rather for you to override.
|
|
|
|
### `load.read(filename, options)`
|
|
|
|
Callback used by `pug-load` to return the contents of a file.
|
|
|
|
`filename` is the file to read.
|
|
|
|
This function is not meant to be called from outside of `pug-load`, but rather for you to override.
|
|
|
|
### `load.validateOptions(options)`
|
|
|
|
Callback used `pug-load` to ensure the options object is valid. If your overridden `load.resolve` or `load.read` uses a different `options` scheme, you will need to override this function as well.
|
|
|
|
This function is not meant to be called from outside of `pug-load`, but rather for you to override.
|
|
|
|
### Example
|
|
|
|
```js
|
|
var fs = require('fs');
|
|
var lex = require('pug-lexer');
|
|
var parse = require('pug-parser');
|
|
var load = require('pug-load');
|
|
|
|
// you can do everything very manually
|
|
|
|
var str = fs.readFileSync('bar.pug', 'utf8');
|
|
var ast = load(parse(lex(str, 'bar.pug'), 'bar.pug'), {
|
|
lex: lex,
|
|
parse: parse,
|
|
resolve: function (filename, source, options) {
|
|
console.log('"' + filename + '" file requested from "' + source + '".');
|
|
return load.resolve(filename, source, options);
|
|
}
|
|
});
|
|
|
|
// or you can do all that in just two steps
|
|
|
|
var str = fs.readFileSync('bar.pug', 'utf8');
|
|
var ast = load.string(str, 'bar.pug', {
|
|
lex: lex,
|
|
parse: parse,
|
|
resolve: function (filename, source, options) {
|
|
console.log('"' + filename + '" file requested from "' + source + '".');
|
|
return load.resolve(filename, source, options);
|
|
}
|
|
});
|
|
|
|
// or you can do all that in only one step
|
|
|
|
var ast = load.file('bar.pug', {
|
|
lex: lex,
|
|
parse: parse,
|
|
resolve: function (filename, source, options) {
|
|
console.log('"' + filename + '" file requested from "' + source + '".');
|
|
return load.resolve(filename, source, options);
|
|
}
|
|
});
|
|
```
|
|
|
|
## License
|
|
|
|
MIT
|