ts-code-String

介绍

字符串扩展类

源码

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class String {
private static readonly regexNumber = /{(\d+(:\w*)?)}/g;
private static readonly regexObject = /{(\w+(:\w*)?)}/g;

public static Empty: string = '';

public static IsNullOrWhiteSpace(value: string): boolean {
try {
if (value == null || value == 'undefined')
return true;

return value.toString().replace(/\s/g, '').length < 1;
}
catch (e) {
Logger.Log(e);
return false;
}
}

public static Join(delimiter: string, ...args: (string | Object | Array<any>)[]): string {
try {
let firstArg = args[0];
if (Array.isArray(firstArg) || firstArg instanceof Array) {
let tempString = StringUtil.Empty;
let count = 0;

for (let i = 0; i < firstArg.length; i++) {
let current = firstArg[i];
if (i < firstArg.length - 1)
tempString += current + delimiter;
else
tempString += current;
}

return tempString;
}
else if (typeof firstArg === 'object') {
let tempString = StringUtil.Empty;
let objectArg = firstArg;
let keys = Object.keys(firstArg); //get all Properties of the Object as Array
keys.forEach(element => { tempString += (<any>objectArg)[element] + delimiter; });
tempString = tempString.slice(0, tempString.length - delimiter.length); //remove last delimiter
return tempString;
}
let stringArray = <string[]>args;

return StringUtil.join(delimiter, ...stringArray);
}
catch (e) {
Logger.Log(e);
return StringUtil.Empty;
}
}

public static Format(format: string, ...args: any[]): string {
try {
if (format.match(StringUtil.regexNumber))
return StringUtil.format(StringUtil.regexNumber, format, args);

if (format.match(StringUtil.regexObject))
return StringUtil.format(StringUtil.regexObject, format, args, true);

return format;
}
catch (e) {
Logger.Log(e);
return StringUtil.Empty;
}
}

private static format(regex: any, format: string, args: any, parseByObject: boolean = false): string {
return format.replace(regex, function (match, x) { //0
let s = match.split(':');
if (s.length > 1) {
x = s[0].replace('{', '');
match = s[1].replace('}', ''); //U
}

let arg;
if (parseByObject)
arg = args[0][x];
else
arg = args[x];

if (arg == null || arg == undefined || match.match(/{\d+}/))
return arg;

arg = StringUtil.parsePattern(match, arg);
return typeof arg != 'undefined' && arg != null ? arg : StringUtil.Empty;
});
}

private static parsePattern(match: 'L' | 'U' | 'd' | 's' | 'n' | string, arg: string | Date | number | any): string {
switch (match) {
case 'L':
arg = arg.toLowerCase();
return arg;
case 'U':
arg = arg.toUpperCase();
return arg;
case 'd':
if (typeof (arg) === 'string') {
return StringUtil.getDisplayDateFromString(arg);
}
else if (arg instanceof Date) {
return StringUtil.Format('{0:00}.{1:00}.{2:0000}', arg.getDate(), arg.getMonth(), arg.getFullYear());
}
break;
case 's':
if (typeof (arg) === 'string') {
return StringUtil.getSortableDateFromString(arg);
}
else if (arg instanceof Date) {
return StringUtil.Format('{0:0000}-{1:00}-{2:00}', arg.getFullYear(), arg.getMonth(), arg.getDate());
}
break;
case 'n': //Tausender Trennzeichen
if (typeof (arg) !== "string")
arg = arg.toString();
let replacedString = arg.replace(/,/g, '.');
if (isNaN(parseFloat(replacedString)) || replacedString.length <= 3)
break;

let numberparts = replacedString.split(/[^0-9]+/g);
let parts = numberparts;

if (numberparts.length > 1) {
parts = [StringUtil.join('', ...(numberparts.splice(0, numberparts.length - 1))), numberparts[numberparts.length - 1]];
}

let integer = parts[0];

var mod = integer.length % 3;
var output = (mod > 0 ? (integer.substring(0, mod)) : StringUtil.Empty);
var firstGroup = output;
var remainingGroups = integer.substring(mod).match(/.{3}/g);
output = output + '.' + StringUtil.Join('.', remainingGroups);
arg = output + (parts.length > 1 ? ',' + parts[1] : '');
return arg;
default:
break;
}

if ((typeof (arg) === 'number' || !isNaN(arg)) && !isNaN(+match) && !StringUtil.IsNullOrWhiteSpace(arg))
return StringUtil.formatNumber(arg, match);

return arg;
}

private static getDisplayDateFromString(input: string): string {
let splitted: string[];
splitted = input.split('-');

if (splitted.length <= 1)
return input;

let day = splitted[splitted.length - 1];
let month = splitted[splitted.length - 2];
let year = splitted[splitted.length - 3];
day = day.split('T')[0];
day = day.split(' ')[0];

return `${day}.${month}.${year}`;
}

private static getSortableDateFromString(input: string): string {
let splitted = input.replace(',', '').split('.');
if (splitted.length <= 1)
return input;

let times = splitted[splitted.length - 1].split(' ');
let time = StringUtil.Empty;
if (times.length > 1)
time = times[times.length - 1];

let year = splitted[splitted.length - 1].split(' ')[0];
let month = splitted[splitted.length - 2];
let day = splitted[splitted.length - 3];
let result = `${year}-${month}-${day}`

if (!StringUtil.IsNullOrWhiteSpace(time) && time.length > 1)
result += `T${time}`;
else
result += "T00:00:00";

return result;
}

private static formatNumber(input: number, formatTemplate: string): string {
let count = formatTemplate.length;
let stringValue = input.toString();
if (count <= stringValue.length)
return stringValue;

let remainingCount = count - stringValue.length;
remainingCount += 1; //Das Array muss einen Eintrag mehr als die benötigten Nullen besitzen
return new Array(remainingCount).join('0') + stringValue;
}

private static join(delimiter: string, ...args: string[]): string {
let temp = StringUtil.Empty;
for (let i = 0; i < args.length; i++) {
if ((typeof args[i] == 'string' && StringUtil.IsNullOrWhiteSpace(args[i])) || (typeof args[i] != "number" && typeof args[i] != "string"))
continue;

let arg = "" + args[i];
temp += arg;
for (let i2 = i + 1; i2 < args.length; i2++) {
if (StringUtil.IsNullOrWhiteSpace(args[i2]))
continue;

temp += delimiter;
i = i2 - 1;
break;
}
}
return temp;
}
}

class StringBuilder {
public Values: string[] = [];

constructor(value: string = StringUtil.Empty) {
this.Values = new Array(value);
}
public ToString() {
return this.Values.join('');
}
public Append(value: string) {
this.Values.push(value);
}
public AppendFormat(format: string, ...args: any[]) {
this.Values.push(StringUtil.Format(format, ...args));
}
public Clear() {
this.Values = [];
}
}

function StringFormat(stringId: number, ...args: any[]):string
{
let cfg = ConfigDataLoader.getInstance().loadDataConfig( stringId,LanguageConfigProxy);
if(cfg){
let string_value = StringUtil.Format(cfg.language,...args);
string_value = string_value.replace("\\n","\n");
return string_value;
}
return stringId.toString();
}

使用

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var value = String.Format("{0:L}", "APPLE"); //output "apple"

value = String.Format("{0:U}", "apple"); // output "APPLE"

value = String.Format("{0:d}", "2017-01-23 00:00"); //output "23.01.2017"


value = String.Format("{0:s}", "21.03.2017 22:15:01") //output "2017-03-21T22:15:01"

value = String.Format("{0:n}", 1000000);
//output "1.000.000"

value = String.Format("{0:00}", 1);
//output "01"

引用

https://github.com/sevensc/typescript-string-operations