angular2
Version:
Angular 2 - a web framework for modern web apps
210 lines • 27.5 kB
JavaScript
import { StringMapWrapper } from 'angular2/src/facade/collection';
import { isPresent, isBlank, RegExpWrapper, CONST_EXPR } from 'angular2/src/facade/lang';
import { BaseException } from 'angular2/src/facade/exceptions';
export function convertUrlParamsToArray(urlParams) {
var paramsArray = [];
if (isBlank(urlParams)) {
return [];
}
StringMapWrapper.forEach(urlParams, (value, key) => { paramsArray.push((value === true) ? key : key + '=' + value); });
return paramsArray;
}
// Convert an object of url parameters into a string that can be used in an URL
export function serializeParams(urlParams, joiner = '&') {
return convertUrlParamsToArray(urlParams).join(joiner);
}
/**
* This class represents a parsed URL
*/
export class Url {
constructor(path, child = null, auxiliary = CONST_EXPR([]), params = CONST_EXPR({})) {
this.path = path;
this.child = child;
this.auxiliary = auxiliary;
this.params = params;
}
toString() {
return this.path + this._matrixParamsToString() + this._auxToString() + this._childString();
}
segmentToString() { return this.path + this._matrixParamsToString(); }
/** @internal */
_auxToString() {
return this.auxiliary.length > 0 ?
('(' + this.auxiliary.map(sibling => sibling.toString()).join('//') + ')') :
'';
}
_matrixParamsToString() {
var paramString = serializeParams(this.params, ';');
if (paramString.length > 0) {
return ';' + paramString;
}
return '';
}
/** @internal */
_childString() { return isPresent(this.child) ? ('/' + this.child.toString()) : ''; }
}
export class RootUrl extends Url {
constructor(path, child = null, auxiliary = CONST_EXPR([]), params = null) {
super(path, child, auxiliary, params);
}
toString() {
return this.path + this._auxToString() + this._childString() + this._queryParamsToString();
}
segmentToString() { return this.path + this._queryParamsToString(); }
_queryParamsToString() {
if (isBlank(this.params)) {
return '';
}
return '?' + serializeParams(this.params);
}
}
export function pathSegmentsToUrl(pathSegments) {
var url = new Url(pathSegments[pathSegments.length - 1]);
for (var i = pathSegments.length - 2; i >= 0; i -= 1) {
url = new Url(pathSegments[i], url);
}
return url;
}
var SEGMENT_RE = RegExpWrapper.create('^[^\\/\\(\\)\\?;=&#]+');
function matchUrlSegment(str) {
var match = RegExpWrapper.firstMatch(SEGMENT_RE, str);
return isPresent(match) ? match[0] : '';
}
var QUERY_PARAM_VALUE_RE = RegExpWrapper.create('^[^\\(\\)\\?;&#]+');
function matchUrlQueryParamValue(str) {
var match = RegExpWrapper.firstMatch(QUERY_PARAM_VALUE_RE, str);
return isPresent(match) ? match[0] : '';
}
export class UrlParser {
peekStartsWith(str) { return this._remaining.startsWith(str); }
capture(str) {
if (!this._remaining.startsWith(str)) {
throw new BaseException(`Expected "${str}".`);
}
this._remaining = this._remaining.substring(str.length);
}
parse(url) {
this._remaining = url;
if (url == '' || url == '/') {
return new Url('');
}
return this.parseRoot();
}
// segment + (aux segments) + (query params)
parseRoot() {
if (this.peekStartsWith('/')) {
this.capture('/');
}
var path = matchUrlSegment(this._remaining);
this.capture(path);
var aux = [];
if (this.peekStartsWith('(')) {
aux = this.parseAuxiliaryRoutes();
}
if (this.peekStartsWith(';')) {
// TODO: should these params just be dropped?
this.parseMatrixParams();
}
var child = null;
if (this.peekStartsWith('/') && !this.peekStartsWith('//')) {
this.capture('/');
child = this.parseSegment();
}
var queryParams = null;
if (this.peekStartsWith('?')) {
queryParams = this.parseQueryParams();
}
return new RootUrl(path, child, aux, queryParams);
}
// segment + (matrix params) + (aux segments)
parseSegment() {
if (this._remaining.length == 0) {
return null;
}
if (this.peekStartsWith('/')) {
this.capture('/');
}
var path = matchUrlSegment(this._remaining);
this.capture(path);
var matrixParams = null;
if (this.peekStartsWith(';')) {
matrixParams = this.parseMatrixParams();
}
var aux = [];
if (this.peekStartsWith('(')) {
aux = this.parseAuxiliaryRoutes();
}
var child = null;
if (this.peekStartsWith('/') && !this.peekStartsWith('//')) {
this.capture('/');
child = this.parseSegment();
}
return new Url(path, child, aux, matrixParams);
}
parseQueryParams() {
var params = {};
this.capture('?');
this.parseQueryParam(params);
while (this._remaining.length > 0 && this.peekStartsWith('&')) {
this.capture('&');
this.parseQueryParam(params);
}
return params;
}
parseMatrixParams() {
var params = {};
while (this._remaining.length > 0 && this.peekStartsWith(';')) {
this.capture(';');
this.parseParam(params);
}
return params;
}
parseParam(params) {
var key = matchUrlSegment(this._remaining);
if (isBlank(key)) {
return;
}
this.capture(key);
var value = true;
if (this.peekStartsWith('=')) {
this.capture('=');
var valueMatch = matchUrlSegment(this._remaining);
if (isPresent(valueMatch)) {
value = valueMatch;
this.capture(value);
}
}
params[key] = value;
}
parseQueryParam(params) {
var key = matchUrlSegment(this._remaining);
if (isBlank(key)) {
return;
}
this.capture(key);
var value = true;
if (this.peekStartsWith('=')) {
this.capture('=');
var valueMatch = matchUrlQueryParamValue(this._remaining);
if (isPresent(valueMatch)) {
value = valueMatch;
this.capture(value);
}
}
params[key] = value;
}
parseAuxiliaryRoutes() {
var routes = [];
this.capture('(');
while (!this.peekStartsWith(')') && this._remaining.length > 0) {
routes.push(this.parseSegment());
if (this.peekStartsWith('//')) {
this.capture('//');
}
}
this.capture(')');
return routes;
}
}
export var parser = new UrlParser();
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{StringMapWrapper} from 'angular2/src/facade/collection';\nimport {isPresent, isBlank, RegExpWrapper, CONST_EXPR} from 'angular2/src/facade/lang';\nimport {BaseException, WrappedException} from 'angular2/src/facade/exceptions';\n\nexport function convertUrlParamsToArray(urlParams: {[key: string]: any}): string[] {\n  var paramsArray = [];\n  if (isBlank(urlParams)) {\n    return [];\n  }\n  StringMapWrapper.forEach(\n      urlParams, (value, key) => { paramsArray.push((value === true) ? key : key + '=' + value); });\n  return paramsArray;\n}\n\n// Convert an object of url parameters into a string that can be used in an URL\nexport function serializeParams(urlParams: {[key: string]: any}, joiner = '&'): string {\n  return convertUrlParamsToArray(urlParams).join(joiner);\n}\n\n/**\n * This class represents a parsed URL\n */\nexport class Url {\n  constructor(public path: string, public child: Url = null,\n              public auxiliary: Url[] = CONST_EXPR([]),\n              public params: {[key: string]: any} = CONST_EXPR({})) {}\n\n  toString(): string {\n    return this.path + this._matrixParamsToString() + this._auxToString() + this._childString();\n  }\n\n  segmentToString(): string { return this.path + this._matrixParamsToString(); }\n\n  /** @internal */\n  _auxToString(): string {\n    return this.auxiliary.length > 0 ?\n               ('(' + this.auxiliary.map(sibling => sibling.toString()).join('//') + ')') :\n               '';\n  }\n\n  private _matrixParamsToString(): string {\n    var paramString = serializeParams(this.params, ';');\n    if (paramString.length > 0) {\n      return ';' + paramString;\n    }\n    return '';\n  }\n\n  /** @internal */\n  _childString(): string { return isPresent(this.child) ? ('/' + this.child.toString()) : ''; }\n}\n\nexport class RootUrl extends Url {\n  constructor(path: string, child: Url = null, auxiliary: Url[] = CONST_EXPR([]),\n              params: {[key: string]: any} = null) {\n    super(path, child, auxiliary, params);\n  }\n\n  toString(): string {\n    return this.path + this._auxToString() + this._childString() + this._queryParamsToString();\n  }\n\n  segmentToString(): string { return this.path + this._queryParamsToString(); }\n\n  private _queryParamsToString(): string {\n    if (isBlank(this.params)) {\n      return '';\n    }\n\n    return '?' + serializeParams(this.params);\n  }\n}\n\nexport function pathSegmentsToUrl(pathSegments: string[]): Url {\n  var url = new Url(pathSegments[pathSegments.length - 1]);\n  for (var i = pathSegments.length - 2; i >= 0; i -= 1) {\n    url = new Url(pathSegments[i], url);\n  }\n  return url;\n}\n\nvar SEGMENT_RE = RegExpWrapper.create('^[^\\\\/\\\\(\\\\)\\\\?;=&#]+');\nfunction matchUrlSegment(str: string): string {\n  var match = RegExpWrapper.firstMatch(SEGMENT_RE, str);\n  return isPresent(match) ? match[0] : '';\n}\nvar QUERY_PARAM_VALUE_RE = RegExpWrapper.create('^[^\\\\(\\\\)\\\\?;&#]+');\nfunction matchUrlQueryParamValue(str: string): string {\n  var match = RegExpWrapper.firstMatch(QUERY_PARAM_VALUE_RE, str);\n  return isPresent(match) ? match[0] : '';\n}\n\nexport class UrlParser {\n  private _remaining: string;\n\n  peekStartsWith(str: string): boolean { return this._remaining.startsWith(str); }\n\n  capture(str: string): void {\n    if (!this._remaining.startsWith(str)) {\n      throw new BaseException(`Expected \"${str}\".`);\n    }\n    this._remaining = this._remaining.substring(str.length);\n  }\n\n  parse(url: string): Url {\n    this._remaining = url;\n    if (url == '' || url == '/') {\n      return new Url('');\n    }\n    return this.parseRoot();\n  }\n\n  // segment + (aux segments) + (query params)\n  parseRoot(): RootUrl {\n    if (this.peekStartsWith('/')) {\n      this.capture('/');\n    }\n    var path = matchUrlSegment(this._remaining);\n    this.capture(path);\n\n    var aux: Url[] = [];\n    if (this.peekStartsWith('(')) {\n      aux = this.parseAuxiliaryRoutes();\n    }\n    if (this.peekStartsWith(';')) {\n      // TODO: should these params just be dropped?\n      this.parseMatrixParams();\n    }\n    var child = null;\n    if (this.peekStartsWith('/') && !this.peekStartsWith('//')) {\n      this.capture('/');\n      child = this.parseSegment();\n    }\n    var queryParams: {[key: string]: any} = null;\n    if (this.peekStartsWith('?')) {\n      queryParams = this.parseQueryParams();\n    }\n    return new RootUrl(path, child, aux, queryParams);\n  }\n\n  // segment + (matrix params) + (aux segments)\n  parseSegment(): Url {\n    if (this._remaining.length == 0) {\n      return null;\n    }\n    if (this.peekStartsWith('/')) {\n      this.capture('/');\n    }\n    var path = matchUrlSegment(this._remaining);\n    this.capture(path);\n\n    var matrixParams: {[key: string]: any} = null;\n    if (this.peekStartsWith(';')) {\n      matrixParams = this.parseMatrixParams();\n    }\n    var aux: Url[] = [];\n    if (this.peekStartsWith('(')) {\n      aux = this.parseAuxiliaryRoutes();\n    }\n    var child: Url = null;\n    if (this.peekStartsWith('/') && !this.peekStartsWith('//')) {\n      this.capture('/');\n      child = this.parseSegment();\n    }\n    return new Url(path, child, aux, matrixParams);\n  }\n\n  parseQueryParams(): {[key: string]: any} {\n    var params: {[key: string]: any} = {};\n    this.capture('?');\n    this.parseQueryParam(params);\n    while (this._remaining.length > 0 && this.peekStartsWith('&')) {\n      this.capture('&');\n      this.parseQueryParam(params);\n    }\n    return params;\n  }\n\n  parseMatrixParams(): {[key: string]: any} {\n    var params: {[key: string]: any} = {};\n    while (this._remaining.length > 0 && this.peekStartsWith(';')) {\n      this.capture(';');\n      this.parseParam(params);\n    }\n    return params;\n  }\n\n  parseParam(params: {[key: string]: any}): void {\n    var key = matchUrlSegment(this._remaining);\n    if (isBlank(key)) {\n      return;\n    }\n    this.capture(key);\n    var value: any = true;\n    if (this.peekStartsWith('=')) {\n      this.capture('=');\n      var valueMatch = matchUrlSegment(this._remaining);\n      if (isPresent(valueMatch)) {\n        value = valueMatch;\n        this.capture(value);\n      }\n    }\n\n    params[key] = value;\n  }\n\n  parseQueryParam(params: {[key: string]: any}): void {\n    var key = matchUrlSegment(this._remaining);\n    if (isBlank(key)) {\n      return;\n    }\n    this.capture(key);\n    var value: any = true;\n    if (this.peekStartsWith('=')) {\n      this.capture('=');\n      var valueMatch = matchUrlQueryParamValue(this._remaining);\n      if (isPresent(valueMatch)) {\n        value = valueMatch;\n        this.capture(value);\n      }\n    }\n\n    params[key] = value;\n  }\n\n  parseAuxiliaryRoutes(): Url[] {\n    var routes: Url[] = [];\n    this.capture('(');\n\n    while (!this.peekStartsWith(')') && this._remaining.length > 0) {\n      routes.push(this.parseSegment());\n      if (this.peekStartsWith('//')) {\n        this.capture('//');\n      }\n    }\n    this.capture(')');\n\n    return routes;\n  }\n}\n\nexport var parser = new UrlParser();\n"]}