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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [java/] [text/] [natCollator.cc] - Blame information for rev 758

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1 758 jeremybenn
// natCollator.cc - Native code for collation.
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/* Copyright (C) 1999  Free Software Foundation
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   This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
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details.  */
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// Written by Tom Tromey <tromey@cygnus.com>.
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#include <config.h>
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#include <gcj/cni.h>
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#include <jvm.h>
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#include <java/text/Collator.h>
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#include <java/lang/StringBuffer.h>
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#include <java-chardecomp.h>
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void
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java::text::Collator::decomposeCharacter (jchar c,
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                                          java::lang::StringBuffer *buf)
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{
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  if (decmp == NO_DECOMPOSITION)
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    {
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      buf->append(c);
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      return;
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    }
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  const struct decomp_entry *base;
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  int high;
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  if (decmp == FULL_DECOMPOSITION)
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    {
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      base = full_decomposition;
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      high = sizeof (full_decomposition) / sizeof (struct decomp_entry);
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    }
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  else
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    {
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      base = canonical_decomposition;
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      high = sizeof (canonical_decomposition) / sizeof (struct decomp_entry);
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    }
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  // FIXME: this is probably a bit slow for the task at hand.
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  int i = high / 2;
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  int low = 0;
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  while (true)
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    {
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      if (c < base[i].key)
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        high = i;
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      else if (c > base[i].key)
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        low = i;
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      else
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        break;
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      int old = i;
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      i = (high + low) / 2;
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      if (i == old)
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        {
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          // Not in table, so it expands to itself.
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          buf->append(c);
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          return;
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        }
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    }
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  for (int j = 0; base[i].value[j] != '\0'; j += 2)
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    {
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      jchar x = (base[i].value[j] << 8) | (base[i].value[j + 1]);
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      buf->append (x);
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    }
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}

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