mk_framework/assets/script/mk/utils/StringUtil.ts

/**
 * 字符串工具类
 * @author 薛鸿潇
 */
export default class StringUtil {

    /** 
     * 颜色表
     */
    private str_color = {
        /** 红色1 */
        red1: '#be2c1d',
        /** 棕色1 */
        bro1: '#4E301B',
    }

    /** 
     * 将数据表里的字符串转成相对颜色
     * @param 需要转换的字符串 比如  "你好[red中国]" 其中“中国”为红色...你好[red{s40}中国]
     * @return 返回一个富文本字符串
     * @author xhx
     */
    public getTextByStringInData(str: string): string {
        var newStr: string = str;
        var i: number = 0;
        var begin: number;
        var end: number;
        var sub: string;
        var searchValue: string;
        var replaceValue: string;
        var color_key: string;

        // 解析颜色
        while (i < str.length) {
            begin = str.indexOf("[", i);
            end = str.indexOf("]", begin);
            if (begin != -1 && end != -1)//把[redXXX]转成富文本
            {
                searchValue = str.slice(begin, end + 1);
                // 颜色内容
                color_key = str.slice(begin + 1, begin + 5);
                let color_str = this.str_color[color_key]
                if (color_str) {
                    sub = str.slice(begin + 6, end);
                    replaceValue = this.getColorStringColor(sub, color_str);
                    newStr = newStr.replace(searchValue, replaceValue);
                }
                i = end;
            }
            else {
                break;
            }
        }
        let size_index: number = 0;
        let size_begin: number = 0;
        let size_end: number = 0;
        let size_searchValue: string;
        // let size_sub: string

        // 解析尺寸{40=100%},100%是40尺寸.例子2：[bro对目标造成][red{40=104%}][bro攻击伤害]
        while (size_index < newStr.length) {
            size_begin = newStr.indexOf("{", size_index);
            size_end = newStr.indexOf("}", size_begin);
            if (size_begin != -1 && size_end != -1) {
                // 尺寸内容
                size_searchValue = newStr.slice(size_begin, size_end + 1);
                let size_value = newStr.slice(size_begin + 1, size_begin + 3);
                let size_sub = size_searchValue.slice(4, size_searchValue.length - 1);
                if (size_sub) {
                    let new_value = '<size = ' + size_value + '>' + size_sub + '</color>';
                    newStr = newStr.replace(size_searchValue, new_value);
                }

                size_index = size_end;
            } else {
                break;
            }
        }
        return newStr;
    }
    /**按品质转换字符串颜色 */
    private getColorStringColor(str: string = '#FFFFFF', color_str: string): string {
        return '<color=' + color_str + '>' + str + '</color>';
    }


    /**
     * 阿拉伯数字 转 汉字
     * @param num 要转的数字
     * @returns 汉字数字
     * @author xhx
     */
    public arabicToChinese(num: number): string {
        let unit_section = ['', '万', '亿', '万亿', '亿亿'];
        let unit_chn = ['', '十', '百', '千'];
        let chars = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];
        let unit_index = 0;
        let str_ins = '', zh_str = '';
        let need_zero = false;

        let SectionToChinese = function (section) {
            let _zh_str = '';
            let _unit_index = 0;
            let zero = true;
            while (section > 0) {
                let v = section % 10;
                let _str_ins = '';
                if (v === 0) {
                    if (!zero) {
                        zero = true;
                        _zh_str = chars[v] + _zh_str;
                    }
                } else {
                    zero = false;
                    if (_unit_index !== 1 || section > 1) {
                        _str_ins = chars[v];
                    }

                    _str_ins += unit_chn[_unit_index];
                    _zh_str = _str_ins + _zh_str;
                }
                ++_unit_index;
                section = Math.floor(section / 10);
            }
            return _zh_str;
        };

        if (num === 0) {
            return chars[0];
        }

        while (num > 0) {
            let section = num % 10000;
            if (need_zero) {
                zh_str = chars[0] + zh_str;
            }
            str_ins = SectionToChinese(section);
            str_ins += (section !== 0) ? unit_section[unit_index] : unit_section[0];
            zh_str = str_ins + zh_str;
            need_zero = (section < 1000) && (section > 0);
            num = Math.floor(num / 10000);
            ++unit_index;
        }

        return zh_str;
    }
    /**
     * 限制字符串长度，超出部分用...代替
     * @param str 要拆分的字符串
     * @param max_len 最大长度
     * @returns 被限制后的字符串
     * @author xhx
     */
    public getNewLimitStr(str: string, max_len: number) {
        let arr_str = str.split("");
        let new_str = '';
        max_len = arr_str.length >= max_len ? max_len : arr_str.length;//字符串不能超出的长度，否则用...显示
        for (let i = 0; i < max_len; i++) {
            if (i == (max_len - 1)) {
                new_str += '...';
            } else {
                new_str += arr_str[i];
            }
        }
        return new_str;
    }
}