node-font2base64

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node-font2base64

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Convert font to base64 url or src, and to inject src into style files

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# node-font2base64

Convert font to base64 url or src, and to inject src into style files

## Installation

```sh
$ npm install node-font2base64
# or
$ yarn add node-font2base64 --dev
```

## Import

### CommonJS modules

```js
const font2base64 = require('node-font2base64');
const {
  encodeToDataUrl,
  encodeToDataSrc,
  encodeToDataUrlSync,
  encodeToDataSrcSync,
  injectBase64,
  injectBase64Sync,
} = require('node-font2base64');
```

### ECMAScript modules

```js
import {
  encodeToDataUrl,
  encodeToDataSrc,
  encodeToDataUrlSync,
  encodeToDataSrcSync,
  injectBase64,
  injectBase64Sync,
} from 'node-font2base64';
```

## API

### encodeToDataUrl (fontpath)

- Convert font file(s) to font-media base64 data url asynchronously
- `fontpath`: {string} | {Array{string}}
- Returns: {Promise} containing {string} | {Array{string}}

```js
const dataUrl = await encodeToDataUrl('fonts/myfont-regular.ttf');
// => data:font/truetype;charset=utf-8;base64,<base64>
```

### encodeToDataUrlSync (fontpath)

- Convert font file(s) to font-media base64 data url synchronously
- `fontpath`: {string} | {Array{string}}
- Returns: {string} | {Array{string}}

```js
const dataUrl = encodeToDataUrlSync('fonts/myfont-regular.woff');
// => data:application/font-woff;charset=utf-8;base64,<base64>
```

### encodeToDataSrc (fontpath)

- Convert font file(s) to font-media base64 data src asynchronously
- `fontpath`: {string} | {Array{string}}
- Returns: {Promise} containing {string} | {Array{string}}

```js
const dataSrc = await encodeToDataSrc('fonts/myfont-regular.ttf');
// => url(data:font/truetype;charset=utf-8;base64,<base64>) format('truetype')
```

### encodeToDataSrcSync (fontpath)

- Convert font file(s) to font-media base64 data src synchronously
- `fontpath`: {string} | {Array{string}}
- Returns: {string} | {Array{string}}

```js
const dataSrc = encodeToDataSrcSync('fonts/myfont-regular.woff');
// => url(data:application/font-woff;charset=utf-8;base64,<base64>) format('woff')
```

### injectBase64 (fontpath, stylepath[, options])

- Replace font url(s) in style file(s) with font-media base64 data src asynchronously
- `fontpath`: {string} | {Array{string}}
- `stylepath`: {string} | {Array{string}}
- `options`: {Object}
  - `validator`: {Function}: (abs|base_font_url, abs|base_font_path, original_font_url, original_font_path) => boolean
    - check if font url in a style file matches to font file's basename
    - default to comparing both paths' basenames
  - `fontTypes`: {Array{string}}
    - allowed font ext names
    - default to ['.svg', '.ttf', '.otf', '.eot', '.sfnt', '.woff2', '.woff']
  - `cssTypes`: {Array{string}}
    - allowed style ext names
    - default to ['.css', '.scss', '.less']
  - `resave`: {boolean}
    - resave modified style files
    - default to true
  - `fullpathMatch`: {boolean}
    - match full url / path to validate paths
    - default to false
- Returns: {Promise} containing {true | Error} | {Array{result} | Error}

```js
const result = await injectBase64('./fonts', './styles');
// => true

const result = await injectBase64('./fonts', './styles', { resave: false });
// => [{ modified: true, filepath: './styles/example.css', content: '...' }]
```

### injectBase64Sync (fontpath, stylepath[, options])

- Replace font url(s) in style file(s) with font-media base64 data src synchronously
- `fontpath`: {string} | {Array{string}}
- `stylepath`: {string} | {Array{string}}
- `options`: {Object}
  - `validator`: {Function}: (abs|base_font_url, abs|base_font_path, original_font_url, original_font_path) => boolean
    - check if font url in a style file matches to font file's basename
    - default to comparing both paths' basenames
  - `fontTypes`: {Array{string}}
    - allowed font ext names
    - default to ['.svg', '.ttf', '.otf', '.eot', '.sfnt', '.woff2', '.woff']
  - `cssTypes`: {Array{string}}
    - allowed style ext names
    - default to ['.css', '.scss', '.less']
  - `resave`: {boolean}
    - resave modified style files
    - default to true
  - `fullpathMatch`: {boolean}
    - match full url / path to validate paths
    - default to false
- Returns: {true | Error} | {Array{result} | Error}

```js
const result = injectBase64Sync('./fonts', './styles');
// => true

const result = injectBase64Sync('./fonts', './styles', { resave: false });
// => [{ modified: true, filepath: './styles/example.css', content: '...' }]
```

### injectBase64.fromContent (fontpath, content[, options])

- Replace font url(s) in style content with font-media base64 data src asynchronously
- `fontpath`: {string} | {Array{string}}
- `content`: {string}
- `options`: {Object}
  - `validator`: {Function}: (abs|base_font_url, abs|base_font_path, original_font_url, original_font_path) => boolean
    - check if font url in a style file matches to font file's basename
    - default to comparing both paths' basenames
  - `fontTypes`: {Array{string}}
    - allowed font ext names
    - default to ['.svg', '.ttf', '.otf', '.eot', '.sfnt', '.woff2', '.woff']
  - `fullpathMatch`: {boolean}
    - match full url / path to validate paths
    - default to false
  - `root`: {string}
    - directory path which the content originated from
    - use basenames to compare font urls in style files if omitted
- Returns: {Promise} containing {result | Error}

```js
const result = await injectBase64.fromContent('./fonts', '...@font-face {...');
// => [{ modified: true, content: '...' }]
```

### injectBase64Sync.fromContent (fontpath, content[, options])

- Replace font url(s) in style content with font-media base64 data src synchronously
- `fontpath`: {string} | {Array{string}}
- `content`: {string}
- `options`: {Object}
  - `validator`: {Function}: (abs|base_font_url, abs|base_font_path, original_font_url, original_font_path) => boolean
    - check if font url in a style file matches to font file's basename
    - default to comparing both paths' basenames
  - `fontTypes`: {Array{string}}
    - allowed font ext names
    - default to ['.svg', '.ttf', '.otf', '.eot', '.sfnt', '.woff2', '.woff']
  - `fullpathMatch`: {boolean}
    - match full url / path to validate paths
    - default to false
  - `root`: {string}
    - directory path which the content originated from
    - use basenames to compare font urls in style files if omitted
- Returns: {result | Error}

```js
const result = injectBase64Sync.fromContent('./fonts', '...@font-face {...');
// => [{ modified: true, content: '...' }]
```

### injectBase64.fromBuffer (fontpath, buffer[, options])

- Replace font url(s) in style buffer with font-media base64 data src asynchronously
- `fontpath`: {string} | {Array{string}}
- `buffer`: {Buffer}
- `options`: {Object}
  - `validator`: {Function}: (abs|base_font_url, abs|base_font_path, original_font_url, original_font_path) => boolean
    - check if font url in a style file matches to font file's basename
    - default to comparing both paths' basenames
  - `fontTypes`: {Array{string}}
    - allowed font ext names
    - default to ['.svg', '.ttf', '.otf', '.eot', '.sfnt', '.woff2', '.woff']
  - `fullpathMatch`: {boolean}
    - match full url / path to validate paths
    - default to false
  - `root`: {string}
    - directory path which the buffer originated from
    - use basenames to compare font urls in style files if omitted
- Returns: {Promise} containing {result | Error}

```js
const result = await injectBase64.fromBuffer('./fonts', Buffer 54 65 73 74...)
// => [{ modified: true, content: '...' }]
```

### injectBase64Sync.fromBuffer (fontpath, content[, options])

- Replace font url(s) in style buffer with font-media base64 data src synchronously
- `fontpath`: {string} | {Array{string}}
- `buffer`: {Buffer}
- `options`: {Object}
  - `validator`: {Function}: (abs|base_font_url, abs|base_font_path, original_font_url, original_font_path) => boolean
    - check if font url in a style file matches to font file's basename
    - default to comparing both paths' basenames
  - `fontTypes`: {Array{string}}
    - allowed font ext names
    - default to ['.svg', '.ttf', '.otf', '.eot', '.sfnt', '.woff2', '.woff']
  - `fullpathMatch`: {boolean}
    - match full url / path to validate paths
    - default to false
  - `root`: {string}
    - directory path which the buffer originated from
    - use basenames to compare font urls in style files if omitted
- Returns: {result | Error}

```js
const result = injectBase64Sync.fromBuffer('./fonts', Buffer 54 65 73 74...)
// => [{ modified: true, content: '...' }]
```

### [MIT Licensed](LICENSE)

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