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grunt-font-spider

v0.1.5

Published

Optimize fonts with Grunt

Downloads

41

Readme

字蛛 - grunt 插件

字蛛是一个中文 WebFont 自动化压缩工具,它能自动分析页面使用的 WebFont 并进行按需压缩,无需手工配置。

官方网站:http://font-spider.org

特性

  1. 按需压缩:从原字体中剔除没有用到的字符,可以将数 MB 大小的中文字体压缩成几十 KB
  2. 简单可靠:完全基于 HTML 与 CSS 分析进行本地处理,无需 js 与服务端辅助
  3. 自动转码:将字体转码成所有浏览器支持的格式,包括老旧的 IE6 与现代浏览器
  4. 图标字体:除了常规的字体支持外,还支持图标字体(字蛛 v1.0.0 新特性)

安装

npm install grunt-font-spider --save-dev

使用范例

在 CSS 中声明字体

推荐的跨浏览器 @font-face CSS 写法:

/*声明 WebFont*/
@font-face {
  font-family: 'pinghei';
  src: url('../font/pinghei.eot');
  src:
    url('../font/pinghei.eot?#font-spider') format('embedded-opentype'),
    url('../font/pinghei.woff') format('woff'),
    url('../font/pinghei.ttf') format('truetype'),
    url('../font/pinghei.svg') format('svg');
  font-weight: normal;
  font-style: normal;
}

/*使用选择器指定字体*/
.home h1, .demo > .test {
    font-family: 'pinghei';
}

特别说明: @font-face 中的 src 定义的 .ttf 文件必须存在,其余的格式将由工具自动生成

配置示例

module.exports = function(grunt) {
    grunt.initConfig({
        // 拷贝文件到发布目录,这样字体可被反复处理
        copy: {
            main: {
                src: './test/**',
                dest: './dest/'
            },
        },
        // 字蛛插件:压缩与转码静态页面中的 WebFont
        'font-spider': {
            options: {},
            main: {
                src: './dest/test/**/*.html'
            }
        }
    });
    grunt.loadNpmTasks('grunt-font-spider');
    grunt.loadNpmTasks('grunt-contrib-copy');
    grunt.registerTask('default', ['copy', 'font-spider']);
};

Options

{
    /**
     * 忽略加载的文件规则(支持正则) - 与 `resourceIgnore` 参数互斥
     * @type    {Array<String>}
     */
    ignore: [],

    /**
     * 映射的文件规则(支持正则) - 与 `resourceMap` 参数互斥 - 可以将远程字体文件映射到本地来
     * @type    {Array<Array<String>>}
     * @example [['http://font-spider.org/font', __diranme + '/font'], ...]
     */
    map: [],

    /**
     * 是否支持备份原字体
     * @type    {Boolean}
     */
    backup: true,

    /**
     * 是否对查询到的文本进行去重处理
     * @type    {Boolean}
     */
    unique: true,

    /**
     * 是否排序查找到的文本
     * @type    {Boolean}
     */
    sort: true,

    /**
     * 是否支持加载外部 CSS 文件
     */
    loadCssFile: true,

    /**
     * 是否忽略内部解析错误-关闭它有利于开发调试
     * @type    {Boolean}
     */
    silent: true,

    /**
     * 请求超时限制
     * @type    {Number}    毫秒
     */
    resourceTimeout: 8000,

    /**
     * 最大的文件加载数量限制
     * @type    {Number}    数量
     */
    resourceMaxNumber: 64,

    /**
     * 是否缓存请求成功的资源
     * @type    {Boolean}
     */
    resourceCache: true,

    /**
     * 映射资源路径 - 与 `map` 参数互斥
     * @param   {String}    旧文件地址
     * @return  {String}    新文件地址
     */
    resourceMap: function(file) {},

    /**
     * 忽略资源 - 与 `ignore` 参数互斥
     * @param   {String}    文件地址
     * @return  {Boolean}   如果返回 `true` 则忽略当当前文件的加载
     */
    resourceIgnore: function(file) {},

    /**
     * 资源加载前的事件
     * @param   {String}    文件地址
     */
    resourceBeforeLoad: function(file) {},

    /**
     * 加载远程资源的自定义请求头
     * @param   {String}    文件地址
     * @return  {Object}
     */
    resourceRequestHeaders: function(file) {
        return {
            'accept-encoding': 'gzip,deflate'
        };
    }
}

使用场景限制

  • 仅支持固定的文本与样式,不支持 javascript 动态插入的元素与样式
  • .otf 字体需要转换成 .ttf 才能被压缩
  • 仅支持 utf-8 编码的 HTML 与 CSS 文件

字体兼容性参考

| 格式 | IE | Firefox | Chrome | Safari | Opera | iOS Safari | Android Browser | Chrome for Android | | ------- | ---- | ------- | ------ | ------ | ----- | ---------- | --------------- | ------------------ | | .eot | 6 | -- | -- | -- | -- | -- | -- | -- | | .woff | 9 | 3.6 | 5 | 5.1 | 11.1 | 5.1 | 4.4 | 36 | | .ttf | -- | 3.5 | 4 | 3.1 | 10.1 | 4.3 | 2.2 | 36 | | .svg | -- | -- | 4 | 3.2 | 9.6 | 3.2 | 3 | 36 |

来源:http://caniuse.com/#feat=fontface

相关链接

=============

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