Scala Parsers: Availability, Differences and Combining?

Question

My question is about the Scala Parsers:

• Which ones are available (in the Standard library and outside),
• what's the difference between them,
• do they share a common API and
• can different Parsers be combined to parse one input string?

I found at least these:

• Scala's "standard" parser (seems to be an LL parser)
• Scala's Packrat parser (since 2.8, is a LALR parser)
• The Parboiled parser (PEG parser?)
• Spiewak's GLL parser combinator

Answer 1

Just wanted to update this answer with a pointer to the latest iteration of the parboiled project, called parboiled2:

https://github.com/sirthias/parboiled2

parboiled2 targets only Scala (as opposed to Scala + Java), makes use of Scala macros, and is very actively maintained.