TypeScript lang.RegExpWrapper类代码示例

  RegExpWrapper,
  BaseException,
  CONST,
  FunctionWrapper
} from 'angular2/src/facade/lang';
import {NumberFormatter, NumberFormatStyle} from 'angular2/src/facade/intl';
import {Injectable} from 'angular2/di';
import {ListWrapper} from 'angular2/src/facade/collection';

import {PipeTransform, WrappedValue} from 'angular2/change_detection';
import {InvalidPipeArgumentException} from './invalid_pipe_argument_exception';

import {Pipe} from '../core/metadata';

var defaultLocale: string = 'en-US';
var _re = RegExpWrapper.create('^(\\d+)?\\.((\\d+)(\\-(\\d+))?)?$');

@CONST()
@Injectable()
export class NumberPipe {
  static _format(value: number, style: NumberFormatStyle, digits: string, currency: string = null,
                 currencyAsSymbol: boolean = false): string {
    if (isBlank(value)) return null;
    if (!isNumber(value)) {
      throw new InvalidPipeArgumentException(NumberPipe, value);
    }
    var minInt = 1, minFraction = 0, maxFraction = 3;
    if (isPresent(digits)) {
      var parts = RegExpWrapper.firstMatch(_re, digits);
      if (isBlank(parts)) {
        throw new BaseException(`${digits} is not a valid digit info for number pipes`);

import {Parser} from 'angular2/change_detection';

import {CompileStep} from './compile_step';
import {CompileElement} from './compile_element';
import {CompileControl} from './compile_control';

import {dashCaseToCamelCase} from '../util';

// Group 1 = "bind-"
// Group 2 = "var-" or "#"
// Group 3 = "on-"
// Group 4 = the identifier after "bind-", "var-/#", or "on-"
// Group 5 = idenitifer inside square braces
// Group 6 = identifier inside parenthesis
var BIND_NAME_REGEXP = RegExpWrapper.create(
  '^(?:(?:(?:(bind-)|(var-|#)|(on-))(.+))|\\[([^\\]]+)\\]|\\(([^\\)]+)\\))$');

/**
 * Parses the property bindings on a single element.
 */
export class PropertyBindingParser extends CompileStep {
  _parser:Parser;

  constructor(parser:Parser) {
    super();
    this._parser = parser;
  }

  process(parent:CompileElement, current:CompileElement, control:CompileControl) {
    var attrs = current.attrs();
    var newAttrs = MapWrapper.create();

    render?: RenderProtoViewRef,
    elementBinders?: List<ElementBinder>,
    variableBindings?: Map<string, string>,
    type?: ViewType
  }) {
    this.render = render;
    this.elementBinders = elementBinders;
    this.variableBindings = variableBindings;
    this.type = type;
  }
}

// group 1: property from "[property]"
// group 2: event from "(event)"
// group 3: action from "@action"
var hostRegExp = RegExpWrapper.create('^(?:(?:\\[([^\\]]+)\\])|(?:\\(([^\\)]+)\\))|(?:@(.+)))$');

export class DirectiveMetadata {
  static get DIRECTIVE_TYPE() { return 0; }
  static get COMPONENT_TYPE() { return 1; }
  id: any;
  selector: string;
  compileChildren: boolean;
  events: List<string>;
  properties: List<string>;
  readAttributes: List<string>;
  type: number;
  callOnDestroy: boolean;
  callOnChange: boolean;
  callOnCheck: boolean;
  callOnInit: boolean;

function shouldIgnore(expected: string): boolean {
  let isDart = RegExpWrapper.create('\\:dart$');
  let isJs = RegExpWrapper.create('\\:js$');
  return IS_DART ? RegExpWrapper.test(isJs, expected) : RegExpWrapper.test(isDart, expected);
}

// Extracts the media query from an import rule.
// Returns null when there is no media query.
function _extractMediaQuery(importRule: string): string {
  var match = RegExpWrapper.firstMatch(_mediaQueryRe, importRule);
  if (isBlank(match)) return null;
  var mediaQuery = match[1].trim();
  return (mediaQuery.length > 0) ? mediaQuery: null;
}

    return normalizeBlank(StringMapWrapper.get(params, this.name));
  }
}


class StarSegment {
  regex: string;
  constructor(public name: string) { this.regex = "(.+)"; }

  generate(params: StringMap<string, string>): string {
    return normalizeBlank(StringMapWrapper.get(params, this.name));
  }
}


var paramMatcher = RegExpWrapper.create("^:([^\/]+)$");
var wildcardMatcher = RegExpWrapper.create("^\\*([^\/]+)$");

function parsePathString(route: string) {
  // normalize route as not starting with a "/". Recognition will
  // also normalize.
  if (route[0] === "/") {
    route = StringWrapper.substring(route, 1);
  }

  var segments = splitBySlash(route);
  var results = ListWrapper.create();
  var specificity = 0;

  // The "specificity" of a path is used to determine which route is used when multiple routes match
  // a URL.

// Extracts the url from an import rule, supported formats:
// - 'url' / "url",
// - url(url) / url('url') / url("url")
function _extractUrl(importRule: string): string {
  var match = RegExpWrapper.firstMatch(_urlRe, importRule);
  if (isBlank(match)) return null;
  return isPresent(match[1]) ? match[1] : match[2];
}

// Extracts the media query from an import rule.
// Returns null when there is no media query.
function _extractMediaQuery(importRule: string): string {
  var match = RegExpWrapper.firstMatch(_mediaQueryRe, importRule);
  if (isBlank(match)) return null;
  var mediaQuery = match[1].trim();
  return (mediaQuery.length > 0) ? mediaQuery: null;
}

// Wraps the css in a media rule when the media query is not null
function _wrapInMediaRule(css: string, query: string): string {
  return (isBlank(query)) ? css : `@media ${query} {\n${css}\n}`;
}

var _importRe = RegExpWrapper.create('@import\\s+([^;]+);');
var _urlRe = RegExpWrapper.create(
  'url\\(\\s*?[\'"]?([^\'")]+)[\'"]?|' + // url(url) or url('url') or url("url")
  '[\'"]([^\'")]+)[\'"]'                 // "url" or 'url'
);
var _mediaQueryRe = RegExpWrapper.create('[\'"][^\'"]+[\'"]\\s*\\)?\\s*(.*)');

  _addFrameMetrics(result: StringMap<string, any>, frameTimes: any[]) {
    result['frameTime.mean'] =
        ListWrapper.reduce(frameTimes, (a, b) => a + b, 0) / frameTimes.length;
    var firstFrame = ListWrapper.get(frameTimes, 0);
    result['frameTime.worst'] = ListWrapper.reduce(frameTimes, (a, b) => a > b ? a : b, firstFrame);
    result['frameTime.best'] = ListWrapper.reduce(frameTimes, (a, b) => a < b ? a : b, firstFrame);
    result['frameTime.smooth'] =
        ListWrapper.filter(frameTimes, (a) => a < _FRAME_TIME_SMOOTH_THRESHOLD).length /
        frameTimes.length;
  }

  _markName(index) { return `${_MARK_NAME_PREFIX}${index}`; }
}

var _MICRO_ITERATIONS_REGEX = RegExpWrapper.create('(.+)\\*(\\d+)$');

var _MAX_RETRY_COUNT = 20;
var _MARK_NAME_PREFIX = 'benchpress';
var _SET_TIMEOUT = new OpaqueToken('PerflogMetric.setTimeout');

var _MARK_NAME_FRAME_CAPUTRE = 'frameCapture';
// using 17ms as a somewhat looser threshold, instead of 16.6666ms
var _FRAME_TIME_SMOOTH_THRESHOLD = 17;

var _BINDINGS = [
  bind(PerflogMetric)
      .toFactory(
          (driverExtension, setTimeout, microMetrics, forceGc, captureFrames) =>
              new PerflogMetric(driverExtension, setTimeout, microMetrics, forceGc, captureFrames),
          [

    events.forEach((event) => {
      var ph = event['ph'];
      var name = event['name'];
      var microIterations = 1;
      var microIterationsMatch = RegExpWrapper.firstMatch(_MICRO_ITERATIONS_REGEX, name);
      if (isPresent(microIterationsMatch)) {
        name = microIterationsMatch[1];
        microIterations = NumberWrapper.parseInt(microIterationsMatch[2], 10);
      }

      if (StringWrapper.equals(ph, 'b') && StringWrapper.equals(name, markName)) {
        markStartEvent = event;
      } else if (StringWrapper.equals(ph, 'e') && StringWrapper.equals(name, markName)) {
        markEndEvent = event;
      }

      if (isPresent(markStartEvent) && isBlank(markEndEvent) &&
          event['pid'] === markStartEvent['pid']) {
        if (StringWrapper.equals(ph, 'b') && StringWrapper.equals(name, _MARK_NAME_FRAME_CAPUTRE)) {
          if (isPresent(frameCaptureStartEvent)) {
            throw new BaseException('can capture frames only once per benchmark run');
          }
          if (!this._captureFrames) {
            throw new BaseException(
                'found start event for frame capture, but frame capture was not requested in benchpress')
          }
          frameCaptureStartEvent = event;
        } else if (StringWrapper.equals(ph, 'e') &&
                   StringWrapper.equals(name, _MARK_NAME_FRAME_CAPUTRE)) {
          if (isBlank(frameCaptureStartEvent)) {
            throw new BaseException('missing start event for frame capture');
          }
          frameCaptureEndEvent = event;
        }

        if (StringWrapper.equals(ph, 'I') || StringWrapper.equals(ph, 'i')) {
          if (isPresent(frameCaptureStartEvent) && isBlank(frameCaptureEndEvent) &&
              StringWrapper.equals(name, 'frame')) {
            frameTimestamps.push(event['ts']);
            if (frameTimestamps.length >= 2) {
              frameTimes.push(frameTimestamps[frameTimestamps.length - 1] -
                              frameTimestamps[frameTimestamps.length - 2]);
            }
          }
        }

        if (StringWrapper.equals(ph, 'B') || StringWrapper.equals(ph, 'b')) {
          if (isBlank(intervalStarts[name])) {
            intervalStartCount[name] = 1;
            intervalStarts[name] = event;
          } else {
            intervalStartCount[name]++;
          }
        } else if ((StringWrapper.equals(ph, 'E') || StringWrapper.equals(ph, 'e')) &&
                   isPresent(intervalStarts[name])) {
          intervalStartCount[name]--;
          if (intervalStartCount[name] === 0) {
            var startEvent = intervalStarts[name];
            var duration = (event['ts'] - startEvent['ts']);
            intervalStarts[name] = null;
            if (StringWrapper.equals(name, 'gc')) {
              result['gcTime'] += duration;
              var amount =
                  (startEvent['args']['usedHeapSize'] - event['args']['usedHeapSize']) / 1000;
              result['gcAmount'] += amount;
              var majorGc = event['args']['majorGc'];
              if (isPresent(majorGc) && majorGc) {
                result['majorGcTime'] += duration;
              }
              if (isPresent(intervalStarts['script'])) {
                gcTimeInScript += duration;
              }
            } else if (StringWrapper.equals(name, 'render')) {
              result['renderTime'] += duration;
              if (isPresent(intervalStarts['script'])) {
                renderTimeInScript += duration;
              }
            } else if (StringWrapper.equals(name, 'script')) {
              result['scriptTime'] += duration;
            } else if (isPresent(this._microMetrics[name])) {
              result[name] += duration / microIterations;
            }
          }
        }
      }
    });