[rco8786]

You should check out the Parser package in the scala standard lib. I maintain a few DSLs using this and it's an absolute dream.

https://wiki.scala-lang.org/display/SW/Parser+Combinators--G...

Code looks solid otherwise...at least where I work the style would be to favor functional idioms over for loops but I think that's just personal preference.

[kodablah]

That has been removed from the Scala standard lib and is now distributed separately. I am unsure how well it will be maintained by the community. As the other commenter said, parboiled2 is a good choice using macros and it is lightning fast. A lighter weight, runtime choice that was released recently is fastparse[0].

0 - https://github.com/lihaoyi/fastparse

[rco8786]

Oh wow very good to know. We're just now looking to get to 2.11(very large codebase, upgrades are hard) so will definitely need to keep this in mind.

[joostdevries]

The Parboiled2 framework is often used for building parsers.