切换搜索引擎搜索关键字 Switch Search Engine

switch-search-engine.js

// 2019-03-24
// Switch Search Engine
var o_baidu = {
    url_id: ".baidu.",
    url_q: "wd=",
    url_s: "https://www.baidu.com/s?wd=",
};
var o_google = {
    url_id: ".google.",
    url_q: "q=",
    url_s: "https://www.google.com/search?q=",
};
var o_bing = {
    url_id: ".bing.",
    url_q: "q=",
    url_s: "https://www.bing.com/search?q=",
};
var o_baidu_2 = {
    url_id: ".baidu.",
    url_q: "word=",
    url_s: "https://www.baidu.com/s?wd=",
};

var se = [o_baidu, o_google, o_bing, o_baidu_2];

// Main Function
function SwitchSE(q) {
    for (var i=0; i<se.length; i++)
    {
        if ((q.indexOf(se[i].url_id) != -1)&&(q.indexOf(se[i].url_q) != -1)) {
            var kw = "", url = "";
            var regstr = "(" + se[i].url_q + ")" + "(\S*)";
            var reg =new RegExp(regstr);
            var str = q;
            var res = str.substring(str.match(reg).index, str.length);      
            var idx = res.indexOf("&");
            if (idx != -1) {
                kw = res.substring(res.indexOf("=")+1,idx);
            } else {
                kw = res.substring(res.indexOf("=")+1,res.length);
            }
            if ((se[i].url_id == ".baidu.") || (se[i].url_id == ".bing.")) {
                url = o_google.url_s + kw;
            } else {
                url = o_baidu.url_s + kw;
            }
            return url;
        }
    }
}


// Test demo
var arg1 = 'https://www.google.com/search?newwindow=1&q=hello'
var arg2 = 'https://www.google.com/search?q=hello';
var arg3 = 'https://www.google.com/search?q=hello&oq=world&sourceid=chrome';
var arg4 = 'https://www.google.co.jp/search?q=hello';
var arg5 = 'https://www.baidu.com/s?ie=utf-8&wd=hello';
var arg6 = 'https://www.baidu.com/s?wd=hello+world'
var arg7 = 'https://www.baidu.com/s?word=hello';
var arg8 = 'https://www.bing.com/search?q=hello&go=Search&qs=ds&form=QBRE';
var arg9 = 'https://www.baidu.com/s?ie=utf-8&word=hello+world&tn=baiduhome_pg';

// Console Output
console.log(SwitchSE(arg1));
console.log(SwitchSE(arg2));
console.log(SwitchSE(arg3));
console.log(SwitchSE(arg4));
console.log(SwitchSE(arg5));
console.log(SwitchSE(arg6));
console.log(SwitchSE(arg7));
console.log(SwitchSE(arg8));
console.log(SwitchSE(arg9));