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README.md

cld3-ruby

cld3-ruby is an interface of Compact Language Detector v3 (CLD3) for Ruby.

Usage

require 'cld3'

cld3 = CLD3::NNetLanguageIdentifier.new(0, 1000)

cld3.find_language("こんにちは") # => #<struct Struct::Result language=:ja, probability=1.0, reliable?=true, proportion=1.0, byte_ranges=[]>

cld3.find_language("This is a pen.") # => #<struct Struct::Result language=:en, probability=0.9999408721923828, reliable?=true, proportion=1.0, byte_ranges=[]>

cld3.find_language("здравствуйте") # => #<struct Struct::Result language=:ru, probability=0.3140212297439575, reliable?=false, proportion=1.0, byte_ranges=[]>

Installation

Prerequisites

Instructions

I (Akihiko Odaki) recommend to setup this library installing via gem.

You can also build this library by yourself. Rakefile includes a Rake task to put this code into files buildable as a gem. Build a gem with rake command.

Platform-specific information

FreeBSD

FreeBSD port is available as rubygem-cld3 in textproc category.

https://svnweb.freebsd.org/ports/head/textproc/rubygem-cld3/

JRuby

JRuby has a bug which prevents the feature detection. Apply the following change: https://github.com/jruby/jruby/pull/4118/commits/edad375ef4dcf195b19ce0afe4befac66468c736

OpenBSD

Ruby has a bug which recognizes non-fatal linker warnings as fatal. Apply the following patch to Ruby to workaround the bug.

--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -657,7 +657,7 @@ def with_ldflags(flags)
   end
 
   def try_ldflags(flags, opts = {})
-    try_link(MAIN_DOES_NOTHING, flags, {:werror => true}.update(opts))
+    try_link(MAIN_DOES_NOTHING, flags, {:werror => false}.update(opts))
   end
 
   def append_ldflags(flags, *opts)

Troubleshooting

gem install cld3 triggers native library building. If it fails, you are likely to missing required facilities. Make sure C++ compiler and protocol buffers is installed. I recommend GCC as a C++ compiler. Ruby is likely to need pkg-config as well.

Runtime errors are likely to be issues of FFI or programming errors. Make sure they are all correct.

If you cannot identify the cause of your problem, run spec of this library and see whether the problem is reproducable with it or not. Spec is not included in the gem, so clone the source code repository and then run rake spec. The source code repository is at https://github.com/akihikodaki/cld3-ruby.

In case you cannot solve your problem by yourself and cannot help abandoning or find an issue in this library, please open an issue at https://github.com/akihikodaki/cld3-ruby/issues.

If you found an issue and managed to fix it and agree to share the fix under Apache-2.0, please open a pull request at https://github.com/akihikodaki/cld3-ruby/pulls. Your contribution would be appreciated by other users and recorded with Git.

Versioning

The version has 3 parts: major, minor, and patch. They are joined with . as delimiters in the order.

The increment of the major version and the minor version indicates it can involve any change.

The increment of the patch version indicates there is no change of the supported languages and no change of the existing APIs.

Contact

To ask questions or report issues please open issues at https://github.com/akihikodaki/cld3-ruby/issues.

Credits

This program was written by Akihiko Odaki and other contributors. CLD3 was written by its own authors.

About

cld3-ruby is an interface of Compact Language Detector v3 (CLD3) for Ruby.

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