com.power.common.util.FontIconUtil Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of common-util Show documentation

ApplicationPower common-util

There is a newer version: 2.2.3

package com.power.common.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 通过读取前端字体题库的css文件来生成字体库列表
 * @author sunyu
 *
 */
public class FontIconUtil {

    /**
     * 读取font-awesome.min.css等字体库样式文件获取图标列表
     * 注意：在读取文件前需要将css文件格式化，即转化为非压缩模式
     * @param cssFile css file
     * @return List
     */
    public static List getIcons(File cssFile) {
        List icons = new ArrayList<>(790);
        final String  regex = ".(.*?):before\\s*\\{";
        String curLine;
        BufferedReader reader;
        try {
            reader = new BufferedReader(new FileReader(cssFile));
            while ((curLine = reader.readLine()) != null) {
                Matcher matcher = Pattern.compile(regex, Pattern.DOTALL | Pattern.MULTILINE).matcher(curLine);
                if (matcher.find()) {
                    String selector = matcher.group();
                    if(selector.contains(",")){
                        String[] iconArr = selector.split(",");
                        for(String str:iconArr){
                            icons.add(getIcon(str));
                        }
                    }else{
                        icons.add(getIcon(selector));
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return icons;
    }

    /**
     * 获取单个图标名称
     * @param selector css selector
     * @return String
     */
    private static String getIcon(String selector){
        return selector.substring(selector.indexOf(".")+1,selector.indexOf(":"));
    }
}