diff options
Diffstat (limited to 'gettext-tools/src/gnu/gettext/DumpResource.java')
| -rw-r--r-- | gettext-tools/src/gnu/gettext/DumpResource.java | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/gettext-tools/src/gnu/gettext/DumpResource.java b/gettext-tools/src/gnu/gettext/DumpResource.java new file mode 100644 index 0000000..77c6e01 --- /dev/null +++ b/gettext-tools/src/gnu/gettext/DumpResource.java @@ -0,0 +1,236 @@ +/* GNU gettext for Java + * Copyright (C) 2001-2003, 2007 Free Software Foundation, Inc. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +package gnu.gettext; + +import java.lang.reflect.*; +import java.util.*; +import java.io.*; + +/** + * This programs dumps a resource as a PO file. The resource must be + * accessible through the CLASSPATH. + * + * @author Bruno Haible + */ +public class DumpResource { + private Writer out; + private void dumpString (String str) throws IOException { + int n = str.length(); + out.write('"'); + for (int i = 0; i < n; i++) { + char c = str.charAt(i); + if (c == 0x0008) { + out.write('\\'); out.write('b'); + } else if (c == 0x000c) { + out.write('\\'); out.write('f'); + } else if (c == 0x000a) { + out.write('\\'); out.write('n'); + } else if (c == 0x000d) { + out.write('\\'); out.write('r'); + } else if (c == 0x0009) { + out.write('\\'); out.write('t'); + } else if (c == '\\' || c == '"') { + out.write('\\'); out.write(c); + } else + out.write(c); + } + out.write('"'); + } + private void dumpMessage (String msgid, String msgid_plural, Object msgstr) throws IOException { + int separatorPos = msgid.indexOf('\u0004'); + if (separatorPos >= 0) { + String msgctxt = msgid.substring(0,separatorPos); + msgid = msgid.substring(separatorPos+1); + out.write("msgctxt "); dumpString(msgctxt); + } + out.write("msgid "); dumpString(msgid); out.write('\n'); + if (msgid_plural != null) { + out.write("msgid_plural "); dumpString(msgid_plural); out.write('\n'); + for (int i = 0; i < ((String[])msgstr).length; i++) { + out.write("msgstr[" + i + "] "); + dumpString(((String[])msgstr)[i]); + out.write('\n'); + } + } else { + out.write("msgstr "); dumpString((String)msgstr); out.write('\n'); + } + out.write('\n'); + } + private ResourceBundle catalog; + private Method lookupMethod; + // Lookup the value corresponding to a key found in catalog.getKeys(). + // Here we assume that the catalog returns a non-inherited value for + // these keys. FIXME: Not true. Better see whether handleGetObject is + // public - it is in ListResourceBundle and PropertyResourceBundle. + private Object lookup (String key) { + Object value = null; + if (lookupMethod != null) { + try { + value = lookupMethod.invoke(catalog, new Object[] { key }); + } catch (IllegalAccessException e) { + e.printStackTrace(); + } catch (InvocationTargetException e) { + e.getTargetException().printStackTrace(); + } + } else { + try { + value = catalog.getObject(key); + } catch (MissingResourceException e) { + } + } + return value; + } + private void dump () throws IOException { + lookupMethod = null; + try { + lookupMethod = catalog.getClass().getMethod("lookup", new Class[] { java.lang.String.class }); + } catch (NoSuchMethodException e) { + } catch (SecurityException e) { + } + Method pluralMethod = null; + try { + pluralMethod = catalog.getClass().getMethod("get_msgid_plural_table", new Class[0]); + } catch (NoSuchMethodException e) { + } catch (SecurityException e) { + } + Field pluralField = null; + try { + pluralField = catalog.getClass().getField("plural"); + } catch (NoSuchFieldException e) { + } catch (SecurityException e) { + } + // Search for the header entry. + { + Object header_entry = null; + Enumeration keys = catalog.getKeys(); + while (keys.hasMoreElements()) + if ("".equals(keys.nextElement())) { + header_entry = lookup(""); + break; + } + // If there is no header entry, fake one. + // FIXME: This is not needed; right after po_lex_charset_init set + // the PO charset to UTF-8. + if (header_entry == null) + header_entry = "Content-Type: text/plain; charset=UTF-8\n"; + dumpMessage("",null,header_entry); + } + // Now the other messages. + { + Enumeration keys = catalog.getKeys(); + Object plural = null; + if (pluralMethod != null) { + // msgfmt versions > 0.13.1 create a static get_msgid_plural_table() + // method. + try { + plural = pluralMethod.invoke(catalog, new Object[0]); + } catch (IllegalAccessException e) { + e.printStackTrace(); + } catch (InvocationTargetException e) { + e.getTargetException().printStackTrace(); + } + } else if (pluralField != null) { + // msgfmt versions <= 0.13.1 create a static plural field. + try { + plural = pluralField.get(catalog); + } catch (IllegalAccessException e) { + e.printStackTrace(); + } + } + if (plural instanceof String[]) { + // A GNU gettext created class with plural handling, Java2 format. + int i = 0; + while (keys.hasMoreElements()) { + String key = (String)keys.nextElement(); + Object value = lookup(key); + String key_plural = (value instanceof String[] ? ((String[])plural)[i++] : null); + if (!"".equals(key)) + dumpMessage(key,key_plural,value); + } + if (i != ((String[])plural).length) + throw new RuntimeException("wrong plural field length"); + } else if (plural instanceof Hashtable) { + // A GNU gettext created class with plural handling, Java format. + while (keys.hasMoreElements()) { + String key = (String)keys.nextElement(); + if (!"".equals(key)) { + Object value = lookup(key); + String key_plural = (value instanceof String[] ? (String)((Hashtable)plural).get(key) : null); + dumpMessage(key,key_plural,value); + } + } + } else if (plural == null) { + // No plural handling. + while (keys.hasMoreElements()) { + String key = (String)keys.nextElement(); + if (!"".equals(key)) + dumpMessage(key,null,lookup(key)); + } + } else + throw new RuntimeException("wrong plural field value"); + } + } + + public DumpResource (String resource_name, String locale_name) { + // Split locale_name into language_country_variant. + String language; + String country; + String variant; + language = locale_name; + { + int i = language.indexOf('_'); + if (i >= 0) { + country = language.substring(i+1); + language = language.substring(0,i); + } else + country = ""; + } + { + int j = country.indexOf('_'); + if (j >= 0) { + variant = country.substring(j+1); + country = country.substring(0,j); + } else + variant = ""; + } + Locale locale = new Locale(language,country,variant); + // Get the resource. + ResourceBundle catalog = ResourceBundle.getBundle(resource_name,locale); + // We are only interested in the messsages belonging to the locale + // itself, not in the inherited messages. But catalog.getLocale() exists + // only in Java2 and sometimes differs from the given locale. + try { + Writer w1 = new OutputStreamWriter(System.out,"UTF8"); + Writer w2 = new BufferedWriter(w1); + this.out = w2; + this.catalog = catalog; + dump(); + w2.close(); + w1.close(); + System.out.flush(); + } catch (IOException e) { + e.printStackTrace(); + System.exit(1); + } + } + + public static void main (String[] args) { + new DumpResource(args[0], args.length > 1 ? args[1] : ""); + System.exit(0); + } +} |