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Linguify is a linguistic compiler allowing you to compile and execute plain english.
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README.md

Linguify

Linguify is a linguistic compiler allowing you to compile and execute plain english. And thus allows you to program in plain english provided you have the reduction rules needed.

Since the code ends up compiled like all code should be you can execute your code so amazingly fast I am in awe just to be able to write this divine text to you about it.

Installation

gem install linguify

Basic usage

require 'linguify'

reduce /all directories/ => 'directories' do
  Dir.entries('.').select{ |f| f[0] != '.' && File.directory?(f) }
end

reduce /({directories:[^}]*}) recursively/ => 'directories' do |dirs|
  all_dirs = dirs
  Find.find(dirs) do |path|
    if FileTest.directory?(path)
      if File.basename(path)[0] == '.'
        Find.prune       # Don't look any further into this directory.
      else
        all_dirs << path
        next
      end
    end
  end
  all_dirs
end

reduce /all files inside ({directories:[^}]*})/ => 'files' do |dirs|
  dirs.map{ |f| File.new(f, "r") }
end

reduce /view ({files:[^}]*})/ do |files|
  files.each do |file|
    pp file
  end
end

"view all files inside all directories recursively".linguify.to_ruby
# => "code = lambda do
#       directories_0 = Dir.entries(\".\").select { |f| ((not (f[0] == \".\")) and File.directory?(f)) }
#       directories_1 = (all_dirs = directories_0
#       Find.find(directories_0) do |path|
#         if FileTest.directory?(path) then
#           if (File.basename(path)[0] == \".\") then
#             Find.prune
#           else
#             (all_dirs << path)
#             next
#           end
#         end
#       end
#       all_dirs)
#       files_2 = directories_1.map { |f| File.new(f, \"r\") }
#       files_2.each { |file| pp(file) }
#     end
#   " 

And if you simply want to execute your magnificent piece of art:

"view all files inside all directories recursively".linguify.run

Or even:

# compile once, run plenty
code = "view all files inside all directories recursively".linguify
loop do
  code.run
end

More advanced usage

Linguify supports mixing javascript and ruby. A typical case would be to express NOSQL queries in plain English for everyones convenience.

require 'linguify'

reduce /a possible javascript NOSQL query/ => {:to => 'query', :lang => :js} do
  @db.forEach(lambda{ |record|
      emit(record);
    }
  )
end

reduce /execute ({query:[^}]*})/ do |query|
  db.map query
end

"execute a possible javascript NOSQL query".linguify.to_ruby
# => "code = lambda do
#       query = \"function(){\\n  this.db.forEach(function(record){\\n    emit(record)\\n  });\\n}\"
#       db.map(query)
#     end
#    "

The nature of Linguify's expression reduction face pragmatic programmers with a urge to inline the code the arguments represents. Luckily Linguify has evolved to embrace such minds. Linguify is not for the general masses. It is for the mighty few pragmatics.

require 'linguify'

reduce /inlined code/ => {:to => 'code', :lang => :ruby, :inline => true} do
  something.each do |foobar| # life is not worth living without psedo foobars
    pp foobar
  end
end

reduce /execute ({code:[^}]*})/ do |code|
  pp "hey mum"
  code
  pp "you will never know what I just did"
end

"execute inlined code".linguify.to_ruby
# => "code = lambda do
#       (pp(\"hey mum\")
#       (something.each { |foobar| pp(foobar) })
#       pp(\"you will never know what I just did\"))
#     end
#    "

And you can even inline sub-expressions:

require 'linguify'

reduce /sub expression/ => {:to => 'sub_expression', :lang => :ruby, :inline => true} do
  pp "this is the sub expression code"
end

reduce /({sub_expression:[^}]*}) of inlined code/ => {:to => 'code', :lang => :ruby, :inline => true} do |sub|
  something.each do |foobar| # life is not worth living without psedo foobars
    pp foobar
  end
end

reduce /execute ({code:[^}]*})/ do |code|
  pp "hey mum"
  code
  code[:sub]
  pp "you will never know what I just did"
end

"execute sub expression of inlined code".linguify.to_ruby
# => "code = lambda do
#       (pp(\"hey mum\")
#       (something.each { |foobar| pp(foobar) })
#       pp(\"this is the sub expression code\")
#       pp(\"you will never know what I just did\"))
#     end
#    "

There is also the inline keyword:

require 'linguify'

reduce /inlined code/ => 'code' do
  something.each do |foobar| # life is not worth living without psedo foobars
    pp foobar
  end
end

reduce /execute ({code:[^}]*})/ do |code|
  pp "hey mum"
  inline code
  code
  pp "you will never know what I just did"
end

"execute inlined code".linguify.to_ruby
# => "code = lambda do
#       (pp(\"hey mum\")
#       (something.each { |foobar| pp(foobar) })
#       pp(\"you will never know what I just did\"))
#     end
#    "

License

(The MIT License)

Copyright (c) 2011-2012 Patrick Hanevold

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ‘Software’), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED ‘AS IS’, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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