implab/implabjs-core Files · src/main/ts/text/FormatScanner.ts

Added ObservableValue...

Added ObservableValue Added type spec to safe.pfor, safe.pmap

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             FormatScanner.ts
        
                    48 lines
            
             | 1020 B
            
                | video/mp2t
            
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                TypeScriptLexer
            
             / src / main / ts / text / FormatScanner.ts
          
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      import { argumentNotEmptyString } from "../safe";

      import { MapOf } from "../interfaces";

      export const enum TokeType {

          CurlOpen,

          CurlClose,

          Colon,

          Text

      }

      const typeMap = {

          "{": TokeType.CurlOpen,

          "}": TokeType.CurlClose,

          ":": TokeType.Colon

      } as MapOf<TokeType>;

      export class FormatScanner {

          private _text: string;

          private _pos: number;

          private _tokenType: TokeType;

          private _tokenValue: string;

          private _rx = /[^{}:]+|(.)/g;

          constructor(text: string) {

              argumentNotEmptyString(text, text);

              this._text = text;

          }

          next() {

              if (this._rx.lastIndex >= this._text.length)

                  return false;

              this._pos = this._rx.lastIndex;

              const match = this._rx.exec(this._text);

              this._tokenType = typeMap[match[1]] || TokeType.Text;

              this._tokenValue = match[0];

              return true;

          }

          getTokenValue() {

              return this._tokenValue;

          }

          getTokenType() {

              return this._tokenType;

          }

      }

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				import { argumentNotEmptyString } from "../safe";
				import { MapOf } from "../interfaces";

				export const enum TokeType {
				CurlOpen,
				CurlClose,
				Colon,
				Text
				}

				const typeMap = {
				"{": TokeType.CurlOpen,
				"}": TokeType.CurlClose,
				":": TokeType.Colon
				} as MapOf<TokeType>;

				export class FormatScanner {
				private _text: string;
				private _pos: number;
				private _tokenType: TokeType;
				private _tokenValue: string;
				private _rx = /[^{}:]+\|(.)/g;

				constructor(text: string) {
				argumentNotEmptyString(text, text);
				this._text = text;
				}

				next() {
				if (this._rx.lastIndex >= this._text.length)
				return false;
				this._pos = this._rx.lastIndex;

				const match = this._rx.exec(this._text);
				this._tokenType = typeMap[match[1]] \|\| TokeType.Text;
				this._tokenValue = match[0];

				return true;
				}

				getTokenValue() {
				return this._tokenValue;
				}

				getTokenType() {
				return this._tokenType;
				}
				}