mi sentivo un po 'sporca basandosi su classi AWT che sono abbastanza datato e avevo a che fare con BCP-47 codici di lingua, così ho finito per copiare il codice da parte di Google di chiusura Modelli:
/**
* A regular expression for matching right-to-left language codes.
* See {@link #isRtlLanguage} for the design.
*/
private static final Pattern RtlLocalesRe = Pattern.compile(
"^(ar|dv|he|iw|fa|nqo|ps|sd|ug|ur|yi|.*[-_](Arab|Hebr|Thaa|Nkoo|Tfng))" +
"(?!.*[-_](Latn|Cyrl)($|-|_))($|-|_)");
/**
* Check if a BCP 47/III language code indicates an RTL language, i.e. either:
* - a language code explicitly specifying one of the right-to-left scripts,
* e.g. "az-Arab", or<p>
* - a language code specifying one of the languages normally written in a
* right-to-left script, e.g. "fa" (Farsi), except ones explicitly specifying
* Latin or Cyrillic script (which are the usual LTR alternatives).<p>
* The list of right-to-left scripts appears in the 100-199 range in
* http://www.unicode.org/iso15924/iso15924-num.html, of which Arabic and
* Hebrew are by far the most widely used. We also recognize Thaana, N'Ko, and
* Tifinagh, which also have significant modern usage. The rest (Syriac,
* Samaritan, Mandaic, etc.) seem to have extremely limited or no modern usage
* and are not recognized.
* The languages usually written in a right-to-left script are taken as those
* with Suppress-Script: Hebr|Arab|Thaa|Nkoo|Tfng in
* http://www.iana.org/assignments/language-subtag-registry,
* as well as Sindhi (sd) and Uyghur (ug).
* The presence of other subtags of the language code, e.g. regions like EG
* (Egypt), is ignored.
*/
public static boolean isRtlLanguage(String languageString) {
return languageString != null &&
RtlLocalesRe.matcher(languageString).find();
}
Guarda https://closure-templates.googlecode.com/svn-history/r21/trunk/java/src/com/google/template/soy/internal/i18n/BidiUtils.java
fonte
2014-10-22 00:11:28
Cosa c'è di sbagliato wi le classi AWT? Non è che siano stati abbandonati o cose del genere. –
Non è molto chiaro quali classi AWT continueranno a funzionare in un ambiente senza testa, per esempio. – Trejkaz