Function map

map<D, E>(parser: TokenParser<D, E>, mdata: ((state: ParseResult<D>) => D), merror: ((state: ParseError<E>) => E)): TokenParser<D, E>
Maps semantic data from parser to new user-defined ones. It maps
- data if parser returns a ParseResult
- error if parser returns a ParseError
It is used to define new interfaces for ParseState results from parsers. This is the main way to customise semantic data and even alter the

Returns
A new TokenParser or SymbolParser of the same type, whose execution will return the altered results.
Type Parameters
- D extends Identifiable
- E extends Identifiable
Parameters
- parser: TokenParser<D, E>
  
  The parser whose result will be altered.
- mdata: ((state: ParseResult<D>) => D)
  
  A callback that accepts a ParseState from parser to decide how to map data.
  - - (state: ParseResult<D>): D
    - Parameters
      
      state: ParseResult<D>
      
      Returns D
- merror: ((state: ParseError<E>) => E)
  
  A callback that accepts a ParseState from parser to decide how to map error.
  - - (state: ParseError<E>): E
    - Parameters
      
      state: ParseError<E>
      
      Returns E
Returns TokenParser<D, E>
- Defined in index.ts:1297
map<D, E>(parser: SymbolParser<D, E>, mdata: ((state: ParseResult<D>) => D), merror: ((state: ParseError<E>) => E)): SymbolParser<D, E>
Type Parameters
- D extends Identifiable
- E extends Identifiable
Parameters
- parser: SymbolParser<D, E>
- mdata: ((state: ParseResult<D>) => D)
  - - (state: ParseResult<D>): D
    - Parameters
      
      state: ParseResult<D>
      
      Returns D
- merror: ((state: ParseError<E>) => E)
  - - (state: ParseError<E>): E
    - Parameters
      
      state: ParseError<E>
      
      Returns E
Returns SymbolParser<D, E>
- Defined in index.ts:1302