Re: [Haskell-beginners] parser error coordinates transformation from preprocessed to original text

Hi Radoslav Comment removal is usually done as part of lexing, so during lexing you will have access to the true source position - if you care about line numbering (and have a split between lexing and parsing) usually you would annotate lexemes with their source position. If you are doing macro-expansion before parsing and lexing, it is common to tell the macro expander an artificial but hopefully correct-to-the-user line number with a pragma like #line.