src/com/hughes/android/dictionary/engine/Language.java

   1 // Copyright 2011 Google Inc. All Rights Reserved.\r
   2 //\r
   3 // Licensed under the Apache License, Version 2.0 (the "License");\r
   4 // you may not use this file except in compliance with the License.\r
   5 // You may obtain a copy of the License at\r
   6 //\r
   7 //     http://www.apache.org/licenses/LICENSE-2.0\r
   8 //\r
   9 // Unless required by applicable law or agreed to in writing, software\r
  10 // distributed under the License is distributed on an "AS IS" BASIS,\r
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  12 // See the License for the specific language governing permissions and\r
  13 // limitations under the License.\r
  14 \r
  15 package com.hughes.android.dictionary.engine;\r
  16 \r
  17 import com.hughes.android.dictionary.R;\r
  18 import com.ibm.icu.text.Collator;\r
  19 \r
  20 import java.util.ArrayList;\r
  21 import java.util.LinkedHashMap;\r
  22 import java.util.Locale;\r
  23 import java.util.Map;\r
  24 import java.util.regex.Pattern;\r
  25 \r
  26 public class Language {\r
  27   \r
  28   public static final class LanguageResources {\r
  29     public final String englishName;\r
  30     public final int nameId;\r
  31     public final int flagId;\r
  32     \r
  33     private LanguageResources(final String englishName, int nameId, int flagId) {\r
  34       this.englishName = englishName;\r
  35       this.nameId = nameId;\r
  36       this.flagId = flagId;\r
  37     }\r
  38 \r
  39     private LanguageResources(final String englishName, int nameId) {\r
  40       this(englishName, nameId, 0);\r
  41     }\r
  42   }\r
  43 \r
  44   // Useful:\r
  45   // http://www.loc.gov/standards/iso639-2/php/code_list.php\r
  46   public static final Map<String,LanguageResources> isoCodeToResources = new LinkedHashMap<String,LanguageResources>();\r
  47   static {\r
  48     isoCodeToResources.put("AF", new LanguageResources("Afrikaans", R.string.AF, R.drawable.flag_of_south_africa));\r
  49     isoCodeToResources.put("SQ", new LanguageResources("Albanian", R.string.SQ, R.drawable.flag_of_albania));\r
  50     isoCodeToResources.put("AR", new LanguageResources("Arabic", R.string.AR));\r
  51     isoCodeToResources.put("HY", new LanguageResources("Armenian", R.string.HY, R.drawable.flag_of_armenia));\r
  52     isoCodeToResources.put("BE", new LanguageResources("Belarusian", R.string.BE, R.drawable.flag_of_belarus));\r
  53     isoCodeToResources.put("BN", new LanguageResources("Bengali", R.string.BN));\r
  54     isoCodeToResources.put("BS", new LanguageResources("Bosnian", R.string.BS, R.drawable.flag_of_bosnia_and_herzegovina));\r
  55     isoCodeToResources.put("BG", new LanguageResources("Bulgarian", R.string.BG, R.drawable.flag_of_bulgaria));\r
  56     isoCodeToResources.put("MY", new LanguageResources("Burmese", R.string.MY, R.drawable.flag_of_myanmar));\r
  57     isoCodeToResources.put("ZH", new LanguageResources("Chinese", R.string.ZH, R.drawable.flag_of_the_peoples_republic_of_china));\r
  58     isoCodeToResources.put("cmn", new LanguageResources("Mandarin", R.string.cmn, R.drawable.flag_of_the_peoples_republic_of_china));\r
  59     isoCodeToResources.put("yue", new LanguageResources("Cantonese", R.string.yue, R.drawable.flag_of_the_peoples_republic_of_china));\r
  60     isoCodeToResources.put("CA", new LanguageResources("Catalan", R.string.CA));\r
  61     isoCodeToResources.put("HR", new LanguageResources("Croatian", R.string.HR, R.drawable.flag_of_croatia));\r
  62     isoCodeToResources.put("CS", new LanguageResources("Czech", R.string.CS, R.drawable.flag_of_the_czech_republic));\r
  63     isoCodeToResources.put("DA", new LanguageResources("Danish", R.string.DA, R.drawable.flag_of_denmark));\r
  64     isoCodeToResources.put("NL", new LanguageResources("Dutch", R.string.NL, R.drawable.flag_of_the_netherlands));\r
  65     isoCodeToResources.put("EN", new LanguageResources("English", R.string.EN, R.drawable.flag_of_the_united_kingdom));\r
  66     isoCodeToResources.put("EO", new LanguageResources("Esperanto", R.string.EO));\r
  67     isoCodeToResources.put("ET", new LanguageResources("Estonian", R.string.ET, R.drawable.flag_of_estonia));\r
  68     isoCodeToResources.put("FI", new LanguageResources("Finnish", R.string.FI, R.drawable.flag_of_finland));\r
  69     isoCodeToResources.put("FR", new LanguageResources("French", R.string.FR, R.drawable.flag_of_france));\r
  70     isoCodeToResources.put("DE", new LanguageResources("German", R.string.DE, R.drawable.flag_of_germany));\r
  71     isoCodeToResources.put("EL", new LanguageResources("Greek", R.string.EL, R.drawable.flag_of_greece));\r
  72     isoCodeToResources.put("grc", new LanguageResources("Ancient Greek", R.string.grc));\r
  73     isoCodeToResources.put("haw", new LanguageResources("Hawaiian", R.string.haw));\r
  74     isoCodeToResources.put("HE", new LanguageResources("Hebrew", R.string.HE, R.drawable.flag_of_israel));\r
  75     isoCodeToResources.put("HI", new LanguageResources("Hindi", R.string.HI));\r
  76     isoCodeToResources.put("HU", new LanguageResources("Hungarian", R.string.HU, R.drawable.flag_of_hungary));\r
  77     isoCodeToResources.put("IS", new LanguageResources("Icelandic", R.string.IS, R.drawable.flag_of_iceland));\r
  78     isoCodeToResources.put("ID", new LanguageResources("Indonesian", R.string.ID, R.drawable.flag_of_indonesia));\r
  79     isoCodeToResources.put("GA", new LanguageResources("Irish", R.string.GA, R.drawable.flag_of_ireland));\r
  80     isoCodeToResources.put("GD", new LanguageResources("Scottish Gaelic", R.string.GD));\r
  81     isoCodeToResources.put("GV", new LanguageResources("Manx", R.string.GV));\r
  82     isoCodeToResources.put("IT", new LanguageResources("Italian", R.string.IT, R.drawable.flag_of_italy));\r
  83     isoCodeToResources.put("LA", new LanguageResources("Latin", R.string.LA));\r
  84     isoCodeToResources.put("LV", new LanguageResources("Latvian", R.string.LV, R.drawable.flag_of_latvia));\r
  85     isoCodeToResources.put("LT", new LanguageResources("Lithuanian", R.string.LT, R.drawable.flag_of_lithuania));\r
  86     isoCodeToResources.put("JA", new LanguageResources("Japanese", R.string.JA, R.drawable.flag_of_japan));\r
  87     isoCodeToResources.put("KO", new LanguageResources("Korean", R.string.KO, R.drawable.flag_of_south_korea));\r
  88     isoCodeToResources.put("KU", new LanguageResources("Kurdish", R.string.KU));\r
  89     isoCodeToResources.put("MS", new LanguageResources("Malay", R.string.MS, R.drawable.flag_of_malaysia));\r
  90     isoCodeToResources.put("MI", new LanguageResources("Maori", R.string.MI));\r
  91     isoCodeToResources.put("MN", new LanguageResources("Mongolian", R.string.MN, R.drawable.flag_of_mongolia));\r
  92     isoCodeToResources.put("NE", new LanguageResources("Nepali", R.string.NE, R.drawable.flag_of_nepal));\r
  93     isoCodeToResources.put("NO", new LanguageResources("Norwegian", R.string.NO, R.drawable.flag_of_norway));\r
  94     isoCodeToResources.put("FA", new LanguageResources("Persian", R.string.FA, R.drawable.flag_of_iran));\r
  95     isoCodeToResources.put("PL", new LanguageResources("Polish", R.string.PL, R.drawable.flag_of_poland));\r
  96     isoCodeToResources.put("PT", new LanguageResources("Portuguese", R.string.PT));\r
  97     isoCodeToResources.put("PA", new LanguageResources("Punjabi", R.string.PA));\r
  98     isoCodeToResources.put("RO", new LanguageResources("Romanian", R.string.RO, R.drawable.flag_of_romania));\r
  99     isoCodeToResources.put("RU", new LanguageResources("Russian", R.string.RU, R.drawable.flag_of_russia));\r
 100     isoCodeToResources.put("SA", new LanguageResources("Sanskrit", R.string.SA));\r
 101     isoCodeToResources.put("SR", new LanguageResources("Serbian", R.string.SR, R.drawable.flag_of_serbia));\r
 102     isoCodeToResources.put("SK", new LanguageResources("Slovak", R.string.SK, R.drawable.flag_of_slovakia));\r
 103     isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL, R.drawable.flag_of_slovenia));\r
 104     isoCodeToResources.put("SO", new LanguageResources("Somali", R.string.SO, R.drawable.flag_of_somalia));\r
 105     isoCodeToResources.put("ES", new LanguageResources("Spanish", R.string.ES, R.drawable.flag_of_spain));\r
 106     isoCodeToResources.put("SW", new LanguageResources("Swahili", R.string.SW));\r
 107     isoCodeToResources.put("SV", new LanguageResources("Swedish", R.string.SV, R.drawable.flag_of_sweden));\r
 108     isoCodeToResources.put("TL", new LanguageResources("Tagalog", R.string.TL));\r
 109     isoCodeToResources.put("TG", new LanguageResources("Tajik", R.string.TG, R.drawable.flag_of_tajikistan));\r
 110     isoCodeToResources.put("TH", new LanguageResources("Thai", R.string.TH, R.drawable.flag_of_thailand));\r
 111     isoCodeToResources.put("BO", new LanguageResources("Tibetan", R.string.BO));\r
 112     isoCodeToResources.put("TR", new LanguageResources("Turkish", R.string.TR, R.drawable.flag_of_turkey));\r
 113     isoCodeToResources.put("UK", new LanguageResources("Ukrainian", R.string.UK, R.drawable.flag_of_ukraine));\r
 114     isoCodeToResources.put("UR", new LanguageResources("Urdu", R.string.UR));\r
 115     isoCodeToResources.put("VI", new LanguageResources("Vietnamese", R.string.VI, R.drawable.flag_of_vietnam));\r
 116     isoCodeToResources.put("CI", new LanguageResources("Welsh", R.string.CI));\r
 117     isoCodeToResources.put("YI", new LanguageResources("Yiddish", R.string.YI));\r
 118     isoCodeToResources.put("ZU", new LanguageResources("Zulu", R.string.ZU));\r
 119     isoCodeToResources.put("AZ", new LanguageResources("Azeri", R.string.AZ, R.drawable.flag_of_azerbaijan));\r
 120     isoCodeToResources.put("EU", new LanguageResources("Basque", R.string.EU));\r
 121     isoCodeToResources.put("BR", new LanguageResources("Breton", R.string.BR));\r
 122     isoCodeToResources.put("MR", new LanguageResources("Burmese", R.string.MR));\r
 123     isoCodeToResources.put("FO", new LanguageResources("Faroese", R.string.FO));\r
 124     isoCodeToResources.put("GL", new LanguageResources("Galician", R.string.GL));\r
 125     isoCodeToResources.put("KA", new LanguageResources("Georgian", R.string.KA, R.drawable.flag_of_georgia));\r
 126     isoCodeToResources.put("HT", new LanguageResources("Haitian Creole", R.string.HT, R.drawable.flag_of_haiti));\r
 127     isoCodeToResources.put("LB", new LanguageResources("Luxembourgish", R.string.LB, R.drawable.flag_of_luxembourg));\r
 128     isoCodeToResources.put("MK", new LanguageResources("Macedonian", R.string.MK));\r
 129     isoCodeToResources.put("LO", new LanguageResources("Lao", R.string.LO));\r
 130     isoCodeToResources.put("ML", new LanguageResources("Malayalam", R.string.ML));\r
 131     isoCodeToResources.put("SL", new LanguageResources("Slovenian", R.string.SL, R.drawable.flag_of_slovenia));\r
 132     isoCodeToResources.put("TA", new LanguageResources("Tamil", R.string.TA));\r
 133     isoCodeToResources.put("SH", new LanguageResources("Serbo-Croatian", R.string.SH));\r
 134 \r
 135     // Hack to allow lower-case ISO codes to work:\r
 136     for (final String isoCode : new ArrayList<String>(isoCodeToResources.keySet())) {\r
 137       isoCodeToResources.put(isoCode.toLowerCase(), isoCodeToResources.get(isoCode));\r
 138     }\r
 139 \r
 140   }\r
 141 \r
 142 \r
 143   private static final Map<String, Language> registry = new LinkedHashMap<String, Language>();\r
 144 \r
 145   final String isoCode;\r
 146   final Locale locale;\r
 147   \r
 148   private Collator collator;\r
 149 \r
 150   private Language(final Locale locale, final String isoCode) {\r
 151     this.locale = locale;\r
 152     this.isoCode = isoCode;\r
 153 \r
 154     registry.put(isoCode.toLowerCase(), this);\r
 155   }\r
 156 \r
 157   @Override\r
 158   public String toString() {\r
 159     return locale.toString();\r
 160   }\r
 161   \r
 162   public String getIsoCode() {\r
 163     return isoCode;\r
 164   }\r
 165   \r
 166   public synchronized Collator getCollator() {\r
 167     // Don't think this is thread-safe...\r
 168 //    if (collator == null) {\r
 169       this.collator = Collator.getInstance(locale);\r
 170       this.collator.setStrength(Collator.IDENTICAL);\r
 171 //    }\r
 172     return collator;\r
 173   }\r
 174   \r
 175   public String getDefaultNormalizerRules() {\r
 176     return ":: Any-Latin; ' ' > ; :: Lower; :: NFD; :: [:Nonspacing Mark:] Remove; :: NFC ;";\r
 177   }\r
 178   \r
 179   /**\r
 180    * A practical pattern to identify strong RTL characters. This pattern is not\r
 181    * completely correct according to the Unicode standard. It is simplified for\r
 182    * performance and small code size.\r
 183    */\r
 184   private static final String rtlChars =\r
 185       "\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC";\r
 186 \r
 187   private static final String puncChars =\r
 188       "\\[\\]\\(\\)\\{\\}\\=";\r
 189 \r
 190   private static final Pattern RTL_LEFT_BOUNDARY = Pattern.compile("(["+ puncChars +"])([" + rtlChars + "])");\r
 191   private static final Pattern RTL_RIGHT_BOUNDARY = Pattern.compile("([" + rtlChars + "])(["+ puncChars +"])");\r
 192   \r
 193   public static String fixBidiText(String text) {\r
 194 //    text = RTL_LEFT_BOUNDARY.matcher(text).replaceAll("$1\u200e $2");\r
 195 //    text = RTL_RIGHT_BOUNDARY.matcher(text).replaceAll("$1 \u200e$2");\r
 196     return text;\r
 197   }\r
 198   \r
 199   // ----------------------------------------------------------------\r
 200 \r
 201   public static final Language en = new Language(Locale.ENGLISH, "EN");\r
 202   public static final Language fr = new Language(Locale.FRENCH, "FR");\r
 203   public static final Language it = new Language(Locale.ITALIAN, "IT");\r
 204 \r
 205   public static final Language de = new Language(Locale.GERMAN, "DE") {\r
 206     @Override\r
 207     public String getDefaultNormalizerRules() {\r
 208       return ":: Lower; 'ae' > 'ä'; 'oe' > 'ö'; 'ue' > 'ü'; 'ß' > 'ss'; ";\r
 209     }\r
 210   };\r
 211   \r
 212   // ----------------------------------------------------------------\r
 213 \r
 214   public static synchronized Language lookup(final String isoCode) {\r
 215     Language lang = registry.get(isoCode.toLowerCase());\r
 216     if (lang == null) {\r
 217       lang = new Language(new Locale(isoCode), isoCode);\r
 218     }\r
 219     return lang;\r
 220   }\r
 221 \r
 222 }\r