avalon2/src/vtree/clearString.js

an elegant efficient express mvvm framework

/* 
 * 将要检测的字符串的字符串替换成??123这样的格式
 */
export var stringNum = 0
export var stringPool = {
    map: {}
}
export var rfill = /\?\?\d+/g
export function dig(a) {
    var key = '??' + stringNum++
        stringPool.map[key] = a
    return key + ' '
}
export function fill(a) {
    var val = stringPool.map[a]
    return val
}
export function clearString(str) {
    var array = readString(str)
    for (var i = 0, n = array.length; i < n; i++) {
        str = str.replace(array[i], dig)
    }
    return str
}
//https://github.com/RubyLouvre/avalon/issues/1944
function readString(str, i, ret) {
    var end = false,
        s = 0,
        i = i || 0
    ret = ret || [];
    for (var n = str.length; i < n; i++) {
        var c = str.charAt(i);
        if (!end) {
            if (c === "'") {
                end = "'";
                s = i;
            } else if (c === '"') {
                end = '"';
                s = i;
            }
        } else {
            if (c === end) {
                ret.push(str.slice(s, i + 1));
                end = false;
            }
        }
    }
    if (end !== false) {
        return readString(str, s + 1, ret)
    }
    return ret;
}