Challenge: parsing key value pairs "with regular expressions?"

linonetwo · May 5, 2022, 8:42am

I think its easier to use CFG or parser combinators to solve this, tw’s parser tree is an example of parser conbinator.

Maybe you can use $tw.wiki.parseText() to parse the widget, and get these params from result.tree[0].orderedAttributes

see

github.com

tiddly-gittly/TW5-Typed/blob/7b1e9384d3ab1bf11022032744a361d49db374dd/src/Wiki.d.ts#L126

    
      
           * Set tiddler text of any field.
           *
           * @param {string} title title of tiddler
           * @param {string} field field name to set
           * @param {string | undefined} index data index(key) to set, if you are setting a JSON data tiddler. Be `undefined` if you are just setting a normal tiddler's field, this will be most of the case.
           * @param {string} value text content to set
           * @param {object} options options, see tiddlywiki dev doc for details
           */
          setText: (title: string, field?: string, index?: string | undefined, value?: string, options?: { suppressTimestamp?: boolean }) => void;
          parseTiddler(title: string, options?: IParserOptions): WikiParser;
          parseText(type: string, text: string, options?: IParserOptions): WikiParser;
          /**
            Parse text from a tiddler and render it into another format
              outputType: content type for the output
              title: title of the tiddler to be rendered
              options: see below
            Options include:
            variables: hashmap of variables to set
            parentWidget: optional parent widget for the root node
            */
          renderTiddler(outputType: OutputMimeTypes, title: string, options?: IRenderOptions): string;

and

github.com

tiddly-gittly/TW5-Typed/blob/7b1e9384d3ab1bf11022032744a361d49db374dd/src/ast.d.ts#L16

    
      
            type: 'string' | 'number';
            value: string;
          }
          
          
export interface IWikiASTNode {
            attributes?: Record<string, IParseTreeAttribute>;
            children?: IParseTreeNode[];
            end?: number;
            isBlock?: boolean;
            isSelfClosing?: boolean;
            orderedAttributes?: IParseTreeAttribute[];
            start?: number;
            type: string;
          }
          export interface ITextParseTreeNode extends IWikiASTNode {
            text: string;
            type: 'text';
          }
          export interface ILinkParseTreeNode extends IWikiASTNode {
            text?: string;
            type: 'link';

for API

You will first need to wrap these params into an widget syntax like <$xxx xxx=xxx />