Function walkValues

Parameters

• values: Token[]
• root: any = null
• Optionalfilter:
      | WalkerValueFilter
      | {
          event?: WalkerEvent;
          fn?: WalkerValueFilter;
          type?: EnumToken
          | EnumToken[]
          | ((token: Token) => boolean);
      }
      | null
• Optionalreverse: boolean

  Example:

  
  import {AstDeclaration, EnumToken, transform, walkValues} from '@tbela99/css-parser';
  
  const css = `
  body { color:    color(from var(--base-color) display-p3 r calc(g + 0.24) calc(b + 0.15)); }
  `;
  
  const result = await transform(css);
  const declaration = result.ast.chi[0].chi[0] as AstDeclaration;
  
  // walk the node attribute's tokens in reverse order
  for (const {value} of walkValues(declaration.val, null, null,true)) {
  
      console.error([EnumToken[value.typ], value.val]);
  }
  
  // [ "Color", "color" ]
  // [ "FunctionTokenType", "calc" ]
  // [ "Number", 0.15 ]
  // [ "Add", undefined ]
  // [ "Iden", "b" ]
  // [ "Whitespace", undefined ]
  // [ "FunctionTokenType", "calc" ]
  // [ "Number", 0.24 ]
  // [ "Add", undefined ]
  // [ "Iden", "g" ]
  // [ "Whitespace", undefined ]
  // [ "Iden", "r" ]
  // [ "Whitespace", undefined ]
  // [ "Iden", "display-p3" ]
  // [ "Whitespace", undefined ]
  // [ "FunctionTokenType", "var" ]
  // [ "DashedIden", "--base-color" ]
  // [ "Whitespace", undefined ]
  // [ "Iden", "from" ]
  Copy