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Switch from script to language codes.

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Unfortunately, our Locale objects don't always have a script code.
But we can get almost the same functionality by specifying script
codes for some languages, and defaulting the rest to Latin.

Change-Id: Id81ff67bf44c84f44707a2e167c2787c60c6ecee
This commit is contained in:
Dan Zivkovic 2015-02-12 15:42:25 -08:00
parent 98596e51a1
commit cf84f8ce0c
1 changed files with 29 additions and 27 deletions
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56
java/src/com/android/inputmethod/latin/utils/ScriptUtils.java
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@ -46,29 +46,30 @@ public class ScriptUtils {
public static final int SCRIPT_TELUGU = 16;
public static final int SCRIPT_THAI = 17;
private static final TreeMap<String, Integer> mIso15924toImeScriptCode;
private static final TreeMap<String, Integer> mLanguageCodeToScriptCode;
static {
mIso15924toImeScriptCode = new TreeMap<>();
mIso15924toImeScriptCode.put("Arab", SCRIPT_ARABIC);
mIso15924toImeScriptCode.put("Armn", SCRIPT_ARMENIAN);
mIso15924toImeScriptCode.put("Beng", SCRIPT_BENGALI);
mIso15924toImeScriptCode.put("Cyrl", SCRIPT_CYRILLIC);
mIso15924toImeScriptCode.put("Deva", SCRIPT_DEVANAGARI);
mIso15924toImeScriptCode.put("Geor", SCRIPT_GEORGIAN);
mIso15924toImeScriptCode.put("Grek", SCRIPT_GREEK);
mIso15924toImeScriptCode.put("Hebr", SCRIPT_HEBREW);
mIso15924toImeScriptCode.put("Knda", SCRIPT_KANNADA);
mIso15924toImeScriptCode.put("Khmr", SCRIPT_KHMER);
mIso15924toImeScriptCode.put("Laoo", SCRIPT_LAO);
mIso15924toImeScriptCode.put("Latn", SCRIPT_LATIN);
mIso15924toImeScriptCode.put("Mlym", SCRIPT_MALAYALAM);
mIso15924toImeScriptCode.put("Mymr", SCRIPT_MYANMAR);
mIso15924toImeScriptCode.put("Sinh", SCRIPT_SINHALA);
mIso15924toImeScriptCode.put("Taml", SCRIPT_TAMIL);
mIso15924toImeScriptCode.put("Telu", SCRIPT_TELUGU);
mIso15924toImeScriptCode.put("Thai", SCRIPT_THAI);
mLanguageCodeToScriptCode = new TreeMap<>();
mLanguageCodeToScriptCode.put("", SCRIPT_LATIN); // default
mLanguageCodeToScriptCode.put("ar", SCRIPT_ARABIC);
mLanguageCodeToScriptCode.put("hy", SCRIPT_ARMENIAN);
mLanguageCodeToScriptCode.put("bn", SCRIPT_BENGALI);
mLanguageCodeToScriptCode.put("bg", SCRIPT_CYRILLIC);
mLanguageCodeToScriptCode.put("sr", SCRIPT_CYRILLIC);
mLanguageCodeToScriptCode.put("ru", SCRIPT_CYRILLIC);
mLanguageCodeToScriptCode.put("ka", SCRIPT_GEORGIAN);
mLanguageCodeToScriptCode.put("el", SCRIPT_GREEK);
mLanguageCodeToScriptCode.put("he", SCRIPT_HEBREW);
mLanguageCodeToScriptCode.put("km", SCRIPT_KHMER);
mLanguageCodeToScriptCode.put("lo", SCRIPT_LAO);
mLanguageCodeToScriptCode.put("ml", SCRIPT_MALAYALAM);
mLanguageCodeToScriptCode.put("my", SCRIPT_MYANMAR);
mLanguageCodeToScriptCode.put("si", SCRIPT_SINHALA);
mLanguageCodeToScriptCode.put("ta", SCRIPT_TAMIL);
mLanguageCodeToScriptCode.put("te", SCRIPT_TELUGU);
mLanguageCodeToScriptCode.put("th", SCRIPT_THAI);
}
/*
* Returns whether the code point is a letter that makes sense for the specified
* locale for this spell checker.
@ -179,15 +180,16 @@ public class ScriptUtils {
/**
* @param locale spell checker locale
* @return internal Latin IME script code that maps to an ISO 15924 script code
* {@see http://unicode.org/iso15924/iso15924-codes.html}
* @return internal Latin IME script code that maps to a language code
* {@see http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes}
*/
public static int getScriptFromSpellCheckerLocale(final Locale locale) {
String isoScriptCode = locale.getScript();
Integer imeScriptCode = mIso15924toImeScriptCode.get(isoScriptCode);
if (imeScriptCode == null) {
throw new RuntimeException("Unsupported ISO 15924 code: " + isoScriptCode);
String language = locale.getLanguage();
Integer script = mLanguageCodeToScriptCode.get(language);
if (script == null) {
// Default to Latin.
script = mLanguageCodeToScriptCode.get("");
}
return imeScriptCode;
return script;
}
}