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/** * @license * * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed) * https://github.com/chjj/marked * * Copyright (c) 2018, Костя Третяк. (MIT Licensed) * https://github.com/ts-stack/markdown */
import { BlockLexer } from "./block-lexer.ts";import {  DebugReturns,  LexerReturns,  Links,  MarkedOptions,  SimpleRenderer,  Token,  TokenType,  Parsed} from "./interfaces.ts";import { Parser } from "./parser.ts";
export class Marked {  static options = new MarkedOptions();  protected static simpleRenderers: SimpleRenderer[] = [];  protected static parsed: Parsed = {    content: "",    meta: {},  };
  /**   * Merges the default options with options that will be set.   *   * @param options Hash of options.   */  static setOptions(options: MarkedOptions) {    Object.assign(this.options, options);    return this;  }
  /**   * Setting simple block rule.   */  static setBlockRule(regexp: RegExp, renderer: SimpleRenderer = () => "") {    BlockLexer.simpleRules.push(regexp);    this.simpleRenderers.push(renderer);
    return this;  }
  /**   * Accepts Markdown text and returns an object containing HTML and metadata.   *   * @param src String of markdown source to be compiled.   * @param options Hash of options. They replace, but do not merge with the default options.   * If you want the merging, you can to do this via `Marked.setOptions()`.   */  static parse(src: string, options: MarkedOptions = this.options): Parsed {    try {      const { tokens, links, meta } = this.callBlockLexer(src, options);      this.parsed.content = this.callParser(tokens, links, options);      this.parsed.meta = meta;      return this.parsed;    } catch (e) {      this.parsed.content = this.callMe(e);      return this.parsed;    }  }
  /**   * Accepts Markdown text and returns object with text in HTML format,   * tokens and links from `BlockLexer.parser()`.   *   * @param src String of markdown source to be compiled.   * @param options Hash of options. They replace, but do not merge with the default options.   * If you want the merging, you can to do this via `Marked.setOptions()`.   */  static debug(    src: string,    options: MarkedOptions = this.options,  ): DebugReturns {    const { tokens, links, meta } = this.callBlockLexer(src, options);    let origin = tokens.slice();    const parser = new Parser(options);    parser.simpleRenderers = this.simpleRenderers;    const result = parser.debug(links, tokens);
    /**     * Translates a token type into a readable form,     * and moves `line` field to a first place in a token object.     */    origin = origin.map((token) => {      token.type = (TokenType as any)[token.type] || token.type;
      const line = token.line;      delete token.line;      if (line) {        return { ...{ line }, ...token };      } else {        return token;      }    });
    return { tokens: origin, links, meta, result};  }
  protected static callBlockLexer(    src: string = "",    options?: MarkedOptions,  ): LexerReturns {    if (typeof src != "string") {      throw new Error(        `Expected that the 'src' parameter would have a 'string' type, got '${typeof src}'`,      );    }
    // Preprocessing.    src = src      .replace(/\r\n|\r/g, "\n")      .replace(/\t/g, "    ")      .replace(/\u00a0/g, " ")      .replace(/\u2424/g, "\n")      .replace(/^ +$/gm, "");
    return BlockLexer.lex(src, options, true);  }
  protected static callParser(    tokens: Token[],    links: Links,    options?: MarkedOptions,  ): string {    if (this.simpleRenderers.length) {      const parser = new Parser(options);      parser.simpleRenderers = this.simpleRenderers;      return parser.parse(links, tokens);    } else {      return Parser.parse(tokens, links, options);    }  }
  protected static callMe(err: Error) {    err.message +=      "\nPlease report this to https://github.com/ts-stack/markdown";
    if (this.options.silent && this.options.escape) {      return "<p>An error occured:</p><pre>" +        this.options.escape(err.message + "", true) + "</pre>";    }
    throw err;  }}