CODEWITHSUNDEEP
scalaparsingparboiledparboiled2
WestCoastProjects
WestCoastProjects

Reputation: 63269

Running a parser within parboiled2

The docs for parboiled2 mention the following to get results:

https://github.com/sirthias/parboiled2#access-to-parser-results

val parser = new MyParser(input) 
val result = parser.rootRule.run()

However I get a compilation error when attemping what seems to that approach:

Here is the outline of the parser:

case class CsvParser(input: ParserInput, delimiter: String = ",") extends Parser {
    ..
   def file = zeroOrMore(line) ~ EOI
}

The code to attempt to run it 

val in = new StringBasedParserInput(readFile(fname))
val p = new CsvParser(in)
println(p.toString)
p.file.run

But the "run" is not accepted:

 Error:(81, 12) too few argument lists for macro invocation
  p.file.run

       ^

Upvotes: 1

Views: 134

Answers (1)

ppopoff
ppopoff

Reputation: 678

Looks like that the problem inside the following line:

case class CsvParser(input: ParserInput, delimiter: String = ",")

and it can be fixed by explicitly declaring parserInput as a val

case class CsvParser(val input: ParserInput, delimiter: String = ",")

Upvotes: 1

Related Questions