gcc/libjava/java/text/natCollator.cc
Tom Tromey a0e894a8cc StringBuffer.java (ensureCapacity): Don't resize vector when shared.
* java/lang/StringBuffer.java (ensureCapacity): Don't resize
	vector when shared.
	* java/util/Locale.java (Locale(String,String)): Implement in
	terms of 3-argument version; variant now defaults to empty
	string.
	(toString): Assume variant is not null.
	(equals): Assume all strings are not null.
	(Locale): Throw NullPointerException if any argument is null.
	* java/util/ResourceBundle.java (getBundle): Don't try the base
	name; now implicit in partialGetBundle call.
	(trySomeGetBundle): Search for parent bundles and call setParent
	as required.
	(partialGetBundle): Added `langStop' argument.  Use
	`Locale.toString' to compute bundleName.
	(resource_cache): New static field.
	(partialGetBundle): Cache the returned resource bundle.  Now
	synchronized.
	* gnu/gcj/text/LocaleData_en.java (contents): [collatorRule] Added
	missing `<'.
	* mauve-libgcj: Enable Collator and RuleBasedCollator.
	* java/text/natCollator.cc (decomposeCharacter): `base' now
	`const'.
	* Makefile.in: Rebuilt.
	* Makefile.am (ordinary_java_source_files): Added
	CollationElementIterator, CollationKey, Collator,
	RuleBasedCollator.
	(nat_source_files): Added natCollator.cc.
	* java/text/RuleBasedCollator.java (ceiNext): No longer static.
	(compare): Pass `this' to CollationElementIterator constructor.
	(getCollationElementIterator): Likewise.
	(ceiNext): Fix off-by-one error when finding initial substring.
	(next): Correctly mask off bits when computing return value.
	Fixed return values when one string is shorter than the other.
	* java/text/CollationElementIterator.java (collator): New field.
	(CollationElementIterator): Added collator argument.
	(next): Call ceiNext on collator object.

From-SVN: r26707
1999-04-30 09:31:00 +00:00

75 lines
1.5 KiB
C++

// natCollator.cc - Native code for collation.
/* Copyright (C) 1999 Cygnus Solutions
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
// Written by Tom Tromey <tromey@cygnus.com>.
#include <config.h>
#include <cni.h>
#include <jvm.h>
#include <java/text/Collator.h>
#include <java/lang/StringBuffer.h>
#include <java-chardecomp.h>
void
java::text::Collator::decomposeCharacter (jchar c,
java::lang::StringBuffer *buf)
{
if (decmp == NO_DECOMPOSITION)
{
buf->append(c);
return;
}
const struct decomp_entry *base;
int high;
if (decmp == FULL_DECOMPOSITION)
{
base = full_decomposition;
high = sizeof (full_decomposition) / sizeof (struct decomp_entry);
}
else
{
base = canonical_decomposition;
high = sizeof (canonical_decomposition) / sizeof (struct decomp_entry);
}
// FIXME: this is probably a bit slow for the task at hand.
int i = high / 2;
int low = 0;
while (true)
{
if (c < base[i].key)
high = i;
else if (c > base[i].key)
low = i;
else
break;
int old = i;
i = (high + low) / 2;
if (i == old)
{
// Not in table, so it expands to itself.
buf->append(c);
return;
}
}
for (int j = 0; base[i].value[j] != '\0'; j += 2)
{
jchar x = (base[i].value[j] << 8) | (base[i].value[j + 1]);
buf->append (x);
}
}