mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-19 08:58:54 +08:00
7b824de381
� * gnu/gcj/convert/JIS0201.h: New file, generated from Unicode table. * gnu/gcj/convert/Input_JavaSrc.java: New BytesToUnicode class. * gnu/gcj/convert/Input_SJIS.java: New BytesToUnicode class. * gnu/gcj/convert/Output_EUCJIS.java: New UnicodeToBytes class. * gnu/gcj/convert/Output_SJIS.java: New UnicodeToBytes class. * gnu/gcj/convert/natInput_EUCJIS.cc: New file. * gnu/gcj/convert/natInput_SJIS.cc: New file. * gnu/gcj/convert/natOutput_EUCJIS.cc: New file. * gnu/gcj/convert/natOutput_SJIS.cc: New file. * gnu/gcj/convert/make-trie.c: New file: functions to make a trie. * gnu/gcj/convert/gen-from-JIS.c: Invoke make-trie for output. * gnu/gcj/convert/Unicode_to_JIS.cc: New generated trie table. From-SVN: r26501
103 lines
2.4 KiB
C++
103 lines
2.4 KiB
C++
/* 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. */
|
|
|
|
#include <config.h>
|
|
#include <cni.h>
|
|
#include <gnu/gcj/convert/Output_EUCJIS.h>
|
|
|
|
/* A trie structure to map unicode values to JIS codes.
|
|
* code == -1: the character is undefined.
|
|
* code >= 0 && code < 128: JIS-Roman - mostly Ascii.
|
|
* code >= 128 && code < 256: Half-width Katakana.
|
|
* code >= 256 && code < 0x8000: JIS X 0208:1997.
|
|
* code >= 0x8000 && code < 0xFFFF: JIX X 0212-1990.
|
|
*/
|
|
|
|
extern unsigned short Unicode_to_JIS[];
|
|
|
|
int
|
|
trie_lookup (unsigned short *trie, unsigned short key)
|
|
{
|
|
unsigned short branch = trie[(key >> 12) & 0xf];
|
|
if (branch == 0)
|
|
return -1;
|
|
branch = trie[branch + ((key >> 8) & 0xf)];
|
|
if (branch == 0)
|
|
return -1;
|
|
branch = trie[branch + ((key >> 4) & 0xf)];
|
|
if (branch == 0)
|
|
return -1;
|
|
return trie[branch + (key & 0xf)];
|
|
}
|
|
|
|
static jint
|
|
convert_TO_EUCJIS (gnu::gcj::convert::Output_EUCJIS *encoder,
|
|
jchar *ptr, jint inlength)
|
|
{
|
|
int orig_inlength = inlength;
|
|
jint outbuf_length = encoder->buf->length;
|
|
for (;;)
|
|
{
|
|
if (encoder->count >= outbuf_length)
|
|
break;
|
|
if (encoder->pending1 >= 0)
|
|
{
|
|
elements(encoder->buf)[encoder->count++] = encoder->pending1;
|
|
encoder->pending1 = encoder->pending2;
|
|
encoder->pending2 = -1;
|
|
continue;
|
|
}
|
|
if (inlength == 0)
|
|
break;
|
|
jchar ch = *ptr++;
|
|
inlength--;
|
|
unsigned short val = trie_lookup(Unicode_to_JIS, ch);
|
|
if (val < 0x80)
|
|
{
|
|
if (val == 0xffff)
|
|
val = '?';
|
|
}
|
|
else if (val <= 0xFF)
|
|
{
|
|
encoder->pending1 = val;
|
|
encoder->pending2 = -1;
|
|
val = 0x8e;
|
|
}
|
|
else if (val < 0x8000)
|
|
{
|
|
val |= 0x8080;
|
|
encoder->pending1 = val & 0xff;
|
|
val = val >> 8;
|
|
encoder->pending2 = -1;
|
|
}
|
|
else
|
|
{
|
|
val |= 0x8080;
|
|
encoder->pending1 = val >> 8;
|
|
encoder->pending2 = val & 0xff;
|
|
val = 0x8f;
|
|
}
|
|
elements(encoder->buf)[encoder->count++] = val;
|
|
}
|
|
return orig_inlength - inlength;
|
|
}
|
|
|
|
jint
|
|
gnu::gcj::convert::Output_EUCJIS::write (jcharArray inbuffer,
|
|
jint inpos, jint inlength)
|
|
{
|
|
return convert_TO_EUCJIS(this, &elements(inbuffer)[inpos], inlength);
|
|
}
|
|
|
|
jint
|
|
gnu::gcj::convert::Output_EUCJIS::write (jstring str, jint inpos,
|
|
jint inlength, jcharArray)
|
|
{
|
|
return convert_TO_EUCJIS(this, _Jv_GetStringChars(str)+inpos, inlength);
|
|
}
|