ConstructionOperation/test/demo/stringTest.js

/**
 * Created by Tony on 2017/6/21.
 */
/**
 * Created by Tony on 2017/6/21.
 */
var test = require('tape');

test('string test1', function(t){
    let str = "at('1.1') + at('1.2') + at('1.3') + at('1.4')";
    //let re = /at(/g;
    //let re = new RegExp("at\(", "g");
    //let str1 = str.replaceAll('re', '@(');
    //let str1 = str.replace('at(', '@(');
    var str1 = str.split('at1(').join('@(');
    //t.equal(str1, "@('1.1') + @('1.2') + @('1.3') + @('1.4')");
    t.equal(str1, "at('1.1') + at('1.2') + at('1.3') + at('1.4')");
    t.end();
})

test('string test2', function(t){
    var str="hello(world)";
    var nstr = str.replace(/\([^\)]*\)/g,"");

    t.equal(nstr , "hello");
    t.end();
})

test('string test3', function(t){
    var str="共 (%S) 页";
    var nstr = str.replace("(%S)",10);

    t.equal(nstr , "共 10 页");
    t.end();
})

test('test extract', function(t){
    let private_extract_code = function(str, idx){
        let rst = '', lBracket = 0, rBracket = 0, firstIdx = idx, lastIdx = 0;
        for (let i = idx; i < str.length; i++) {
            if (str[i] === '(') {
                lBracket++;
                if (lBracket == 1) firstIdx = i + 1;
            }
            if (str[i] === ')') {
                rBracket++;
                if (lBracket == rBracket) {
                    lastIdx = i - 1;
                    if (lastIdx > firstIdx) {
                        if (str[firstIdx] === "'") firstIdx++;
                        if (str[lastIdx] !== "'") lastIdx++;
                        if (lastIdx > firstIdx) {
                            rst = str.slice(firstIdx, lastIdx);
                        }
                    }
                    break;
                }
            }
        }
        return rst;
    };
    let code = private_extract_code("at('1.1') + at('1.2')", 10);
    t.equal(code , "1.2");
    t.end();
})