redparse 0.8.1
RedParse is a ruby parser written in pure ruby. Instead of YACC or ANTLR, it's parse tool is a home-brewed "compiler-interpreter". (The tool is LALR(1)-equivalent and the 'parse language' is pretty nice, even in it's current crude form.)
Gemfile:
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install:
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Development Dependencies (1):
hoe
>= 1.12.2