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Racc is a LALR(1) parser generator.
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It is written in Ruby and outputs Ruby script.
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* ruby version 1.4.x or later. Latest 1.6 is best.
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$ ruby install.rb config
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$ ruby install.rb setup
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# ruby install.rb install (maybe by root)
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You can install Racc into your favorite directory by using
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install.rb options. For details, try "ruby install.rb --help".
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It is written in Ruby itself, and generates Ruby program.
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NOTE: Ruby 1.8.x comes with Racc runtime module. You
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can run your parsers generated by racc 1.4.x out of the
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* ruby version 1.6.x or later.
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(*) make and C compiler.
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Type this in the top directory of the extracted archive:
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$ ruby setup.rb config
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# ruby setup.rb install
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You can install Racc into your favorite directory by giving
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options to setup.rb. e.g.
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$ ruby setup.rb config --prefix=/usr
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For details, try "ruby setup.rb --help".
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If you don't have C Compiler
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----------------------------
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You can install Racc without C compilers. Type following
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command in config phase.
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$ ruby setup.rb config --without-ext
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Racc comes with simple calculator. To compile this, on shell:
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$ racc -e ruby -o calc calc.y
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This process costs few seconds (or less). Then type
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For Racc details, see HTML documents placed under 'doc.en/'
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This process costs few seconds (or less). Then type:
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For details of Racc, see HTML documents placed under 'doc.en/'
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and sample grammer files under 'sample/'.
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Racc is distributed under the terms of the GNU Lesser General
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Public License version 2. But ruby script file generated
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by Racc is not. You can treat those files as you like.
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Bug report is welcome.
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If you find a bug of Racc, please e-mail me. Your grammer file,
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Public License version 2. Note that you do NOT need to follow
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LGPL for your own parser (racc outputs). You can provide those
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files under any licenses you want.
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Any kind of bug reports are welcome.
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If you find a bug of Racc, please email me. Your grammer file,
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debug output genereted by "racc -g", are helpful.
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aamine@loveruby.net
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http://www.loveruby.net
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packages/racc/README.en
