Module: Nimono::CabochaLib

Extended by:
FFI::Library
Included in:
Cabocha
Defined in:
lib/nimono/cabocha_lib.rb

Overview

Module ‘CabochaLib` is a ruby extension for CaboCha libraries using Ruby-FFI.

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

CABOCHA_PATH = 
'CABOCHA_PATH'.freeze

Class Method Summary collapse

Class Method Details

.cabocha_library ⇒ String

Returns the absolute path to the CaboCha library.

Returns:

  • (String) —

    absolute path to the CaboCha library



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# File 'lib/nimono/cabocha_lib.rb', line 18

def self.cabocha_library
  if ENV[CABOCHA_PATH]
    File.absolute_path(ENV[CABOCHA_PATH])
  else
    host_os = RbConfig::CONFIG['host_os'].downcase

    lib_name = case host_os
               when /mswin|mingw/ # /mswin|msys|mingw|cygwin|bccwin|wince|emc/
                 require 'win32/registry'
                 begin
                   path = nil
                   Win32::Registry::HKEY_CURRENT_USER.open('Software\Cabocha') {|r| path = r['cabocharc'].split('etc').first}
                   File.join(path, "bin\\libcabocha.dll")
                 rescue
                   raise LoadError, "Please set #{CABOCHA_PATH} to the full path to libcabocha.dll"
                 end
               when /darwin/, /linux/, /solaris|bsd/
                 require 'open3'
                 host_os =~ /darwin/ ? ext = 'dylib' : ext = 'so'
                 begin
                   Open3.popen3('cabocha-config --libs') {|i, o, e, t|
                     i.close
                     tokens = o.read.split
                     File.absolute_path(File.join(tokens[0][2..-1], "lib#{tokens[1][2..-1]}.#{ext}"))
                   }
                 rescue
                   raise LoadError, "Please set #{CABOCHA_PATH} to the full path to libcabocha.#{ext}"
                 end
               else
                 raise CabochaError.new "unknown os: #{host_os.inspect}"
               end
  end
end

.included(klass) ⇒ Object 



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# File 'lib/nimono/cabocha_lib.rb', line 12

def self.included(klass)
  klass.extend ClassMethods
end