#encoding: UTF-8
require 'net/http'
require 'json'
require 'tempfile'
require 'resource_accessor'
class GoogleTranslate
GOOGLE_TRANSLATE_SERVICE_URL = "translate.google.com"
def supported_languages
response = call_service GOOGLE_TRANSLATE_SERVICE_URL
from_languages = collect_languages response.body, 0, 'sl', 'gt-sl'
to_languages = collect_languages response.body, 1, 'tl', 'gt-tl'
[from_languages, to_languages]
end
def translate(from_lang, to_lang, text, options={})
raise("Missing 'from' language") unless from_lang
raise("Missing 'to' language") unless to_lang
raise("Missing text for translation") unless text
r = call_translate_service(from_lang, to_lang, text)
result = JSON.parse(r.gsub('[,', '['))
raise("Translate Server is down") if (!result || result.empty?)
result
end
def say lang, text
speech_content = call_speech_service(lang, text)
file = Tempfile.new('.google_translate_speech---')
file.write(speech_content)
file.close
system "afplay #{file.path}"
file.unlink
end
private
def translate_url(from_lang, to_lang)
"https://#{GOOGLE_TRANSLATE_SERVICE_URL}/translate_a/single?client=t&sl=#{from_lang}&tl=#{to_lang}&hl=en&dt=bd&dt=ex&dt=ld&dt=md&dt=qc&dt=rw&dt=rm&dt=ss&dt=t&dt=at&dt=sw&ie=UTF-8&oe=UTF-8&prev=btn&rom=1&ssel=0&tsel=0"
end
def speech_url(lang)
"http://#{GOOGLE_TRANSLATE_SERVICE_URL}/translate_tts?tl=#{lang}&ie=UTF-8&oe=UTF-8"
end
def call_translate_service from_lang, to_lang, text
url = translate_url(from_lang, to_lang)
response = call_service url + "&q=#{text}"
response.body.split(',').collect { |s| s == '' ? "\"\"" : s }.join(",") # fix json object
end
def call_speech_service lang, text
url = speech_url(lang)
response = call_service url + "&q=#{text}"
response.body
end
def call_service url
accessor = ResourceAccessor.new
accessor.get_response url: url
end
def collect_languages buffer, index, tag_name, tag_id
spaces = '\s?'
quote = '(\s|\'|")?'
id_part = "id#{spaces}=#{spaces}#{quote}#{tag_id}#{quote}"
name_part = "name#{spaces}=#{spaces}#{quote}#{tag_name}#{quote}"
class_part = "class#{spaces}=#{spaces}#{quote}(.*)?#{quote}"
tabindex_part = "tabindex#{spaces}=#{spaces}#{quote}0#{quote}"
phrase = "#{spaces}#{id_part}#{spaces}#{name_part}#{spaces}#{class_part}#{spaces}#{tabindex_part}#{spaces}"
re1 = buffer.split(%r{}).select { |x| x =~ %r{