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fastify-riotjs-and-lowdb/node_modules/html-loader/README.md

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[![npm][npm]][npm-url]
[![deps][deps]][deps-url]
[![test][test]][test-url]
[![coverage][cover]][cover-url]
[![chat][chat]][chat-url]
<div align="center">
<img width="200" height="200"
src="https://worldvectorlogo.com/logos/html5.svg">
<a href="https://github.com/webpack/webpack">
<img width="200" height="200" vspace="" hspace="25"
src="https://worldvectorlogo.com/logos/webpack.svg">
</a>
<h1>HTML Loader</h1>
<p>Exports HTML as string. HTML is minimized when the compiler demands.<p>
</div>
<h2 align="center">Install</h2>
```bash
npm i -D html-loader
```
<h2 align="center">Usage</h2>
By default every local `<img src="image.png">` is required (`require('./image.png')`). You may need to specify loaders for images in your configuration (recommended `file-loader` or `url-loader`).
You can specify which tag-attribute combination should be processed by this loader via the query parameter `attrs`. Pass an array or a space-separated list of `<tag>:<attribute>` combinations. (Default: `attrs=img:src`)
If you use `<custom-elements>`, and lots of them make use of a `custom-src` attribute, you don't have to specify each combination `<tag>:<attribute>`: just specify an empty tag like `attrs=:custom-src` and it will match every element.
```js
{
test: /\.(html)$/,
use: {
loader: 'html-loader',
options: {
attrs: [':data-src']
}
}
}
```
To completely disable tag-attribute processing (for instance, if you're handling image loading on the client side) you can pass in `attrs=false`.
<h2 align="center">Examples</h2>
With this configuration:
```js
{
module: {
rules: [
{ test: /\.jpg$/, use: [ "file-loader" ] },
{ test: /\.png$/, use: [ "url-loader?mimetype=image/png" ] }
]
},
output: {
publicPath: "http://cdn.example.com/[hash]/"
}
}
```
``` html
<!-- file.html -->
<img src="image.png" data-src="image2x.png" >
```
```js
require("html-loader!./file.html");
// => '<img src="http://cdn.example.com/49eba9f/a992ca.png"
// data-src="image2x.png">'
```
```js
require("html-loader?attrs=img:data-src!./file.html");
// => '<img src="image.png" data-src="data:image/png;base64,..." >'
```
```js
require("html-loader?attrs=img:src img:data-src!./file.html");
require("html-loader?attrs[]=img:src&attrs[]=img:data-src!./file.html");
// => '<img src="http://cdn.example.com/49eba9f/a992ca.png"
// data-src="data:image/png;base64,..." >'
```
```js
require("html-loader?-attrs!./file.html");
// => '<img src="image.jpg" data-src="image2x.png" >'
```
minimized by running `webpack --optimize-minimize`
```html
'<img src=http://cdn.example.com/49eba9f/a9f92ca.jpg
data-src=data:image/png;base64,...>'
```
or specify the `minimize` property in the rule's options in your `webpack.conf.js`
```js
module: {
rules: [{
test: /\.html$/,
use: [ {
loader: 'html-loader',
options: {
minimize: true
}
}],
}]
}
```
See [html-minifier](https://github.com/kangax/html-minifier#options-quick-reference)'s documentation for more information on the available options.
The enabled rules for minimizing by default are the following ones:
- removeComments
- removeCommentsFromCDATA
- removeCDATASectionsFromCDATA
- collapseWhitespace
- conservativeCollapse
- removeAttributeQuotes
- useShortDoctype
- keepClosingSlash
- minifyJS
- minifyCSS
- removeScriptTypeAttributes
- removeStyleTypeAttributes
The rules can be disabled using the following options in your `webpack.conf.js`
```js
module: {
rules: [{
test: /\.html$/,
use: [ {
loader: 'html-loader',
options: {
minimize: true,
removeComments: false,
collapseWhitespace: false
}
}],
}]
}
```
### 'Root-relative' URLs
For urls that start with a `/`, the default behavior is to not translate them.
If a `root` query parameter is set, however, it will be prepended to the url
and then translated.
With the same configuration as above:
``` html
<!-- file.html -->
<img src="/image.jpg">
```
```js
require("html-loader!./file.html");
// => '<img src="/image.jpg">'
```
```js
require("html-loader?root=.!./file.html");
// => '<img src="http://cdn.example.com/49eba9f/a992ca.jpg">'
```
### Interpolation
You can use `interpolate` flag to enable interpolation syntax for ES6 template strings, like so:
```js
require("html-loader?interpolate!./file.html");
```
```html
<img src="${require(`./images/gallery.png`)}">
<div>${require('./components/gallery.html')}</div>
```
And if you only want to use `require` in template and any other `${}` are not to be translated, you can set `interpolate` flag to `require`, like so:
```js
require("html-loader?interpolate=require!./file.ftl");
```
```html
<#list list as list>
<a href="${list.href!}" />${list.name}</a>
</#list>
<img src="${require(`./images/gallery.png`)}">
<div>${require('./components/gallery.html')}</div>
```
### Export formats
There are different export formats available:
+ ```module.exports``` (default, cjs format). "Hello world" becomes ```module.exports = "Hello world";```
+ ```exports.default``` (when ```exportAsDefault``` param is set, es6to5 format). "Hello world" becomes ```exports.default = "Hello world";```
+ ```export default``` (when ```exportAsEs6Default``` param is set, es6 format). "Hello world" becomes ```export default "Hello world";```
### Advanced options
If you need to pass [more advanced options](https://github.com/webpack/html-loader/pull/46), especially those which cannot be stringified, you can also define an `htmlLoader`-property on your `webpack.config.js`:
```js
var path = require('path')
module.exports = {
...
module: {
rules: [
{
test: /\.html$/,
use: [ "html-loader" ]
}
]
},
htmlLoader: {
ignoreCustomFragments: [/\{\{.*?}}/],
root: path.resolve(__dirname, 'assets'),
attrs: ['img:src', 'link:href']
}
};
```
If you need to define two different loader configs, you can also change the config's property name via `html-loader?config=otherHtmlLoaderConfig`:
```js
module.exports = {
...
module: {
rules: [
{
test: /\.html$/,
use: [ "html-loader?config=otherHtmlLoaderConfig" ]
}
]
},
otherHtmlLoaderConfig: {
...
}
};
```
### Export into HTML files
A very common scenario is exporting the HTML into their own _.html_ file, to
serve them directly instead of injecting with javascript. This can be achieved
with a combination of 3 loaders:
- [file-loader](https://github.com/webpack/file-loader)
- [extract-loader](https://github.com/peerigon/extract-loader)
- html-loader
The html-loader will parse the URLs, require the images and everything you
expect. The extract loader will parse the javascript back into a proper html
file, ensuring images are required and point to proper path, and the file loader
will write the _.html_ file for you. Example:
```js
{
test: /\.html$/,
use: [ 'file-loader?name=[path][name].[ext]!extract-loader!html-loader' ]
}
```
<h2 align="center">Maintainers</h2>
<table>
<tbody>
<tr>
<td align="center">
<img width="150" height="150"
src="https://avatars.githubusercontent.com/u/18315?v=3">
</br>
<a href="https://github.com/hemanth">Hemanth</a>
</td>
<td align="center">
<img width="150" height="150"
src="https://avatars.githubusercontent.com/u/8420490?v=3">
</br>
<a href="https://github.com/d3viant0ne">Joshua Wiens</a>
</td>
<td align="center">
<img width="150" height="150" src="https://avatars.githubusercontent.com/u/5419992?v=3">
</br>
<a href="https://github.com/michael-ciniawsky">Michael Ciniawsky</a>
</td>
<td align="center">
<img width="150" height="150"
src="https://avatars.githubusercontent.com/u/6542274?v=3">
</br>
<a href="https://github.com/imvetri">Imvetri</a>
</td>
</tr>
<tr>
<td align="center">
<img width="150" height="150"
src="https://avatars.githubusercontent.com/u/1520965?v=3">
</br>
<a href="https://github.com/andreicek">Andrei Crnković</a>
</td>
<td align="center">
<img width="150" height="150"
src="https://avatars.githubusercontent.com/u/3367801?v=3">
</br>
<a href="https://github.com/abouthiroppy">Yuta Hiroto</a>
</td>
<td align="center">
<img width="150" height="150" src="https://avatars.githubusercontent.com/u/80044?v=3">
</br>
<a href="https://github.com/petrunov">Vesselin Petrunov</a>
</td>
<td align="center">
<img width="150" height="150"
src="https://avatars.githubusercontent.com/u/973543?v=3">
</br>
<a href="https://github.com/gajus">Gajus Kuizinas</a>
</td>
</tr>
</tbody>
</table>
[npm]: https://img.shields.io/npm/v/html-loader.svg
[npm-url]: https://npmjs.com/package/html-loader
[deps]: https://david-dm.org/webpack/html-loader.svg
[deps-url]: https://david-dm.org/webpack/html-loader
[chat]: https://img.shields.io/badge/gitter-webpack%2Fwebpack-brightgreen.svg
[chat-url]: https://gitter.im/webpack/webpack
[test]: http://img.shields.io/travis/webpack/html-loader.svg
[test-url]: https://travis-ci.org/webpack/html-loader
[cover]: https://codecov.io/gh/webpack/html-loader/branch/master/graph/badge.svg
[cover-url]: https://codecov.io/gh/webpack/html-loader
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