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/*
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2006 OpenLink Software
*
* This project 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; only version 2 of the License, dated June 1991.
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*
*/
#include "langfunc.h"
/* Conversion to uppercase */
struct unicode3_toupper_s
{
unsigned short int u3c_cell;
unsigned short int u3c_ucase;
};
typedef struct unicode3_toupper_s unicode3_toupper_t;
#define UNICODE3_HEADER unicode3_toupper_t unicode3_lowers[] = {
#define UNICODE3_FOOTER {~0} };
#define UNICODE3_REC(cell,grp1,idx1,grp2,digit1,digit2,digit3,ucase1,lcase,ucase2,flg1,repl1,name1,name2,unicodename) \
{cell,ucase1},
#include "unicode3_lowers.h"
#undef UNICODE3_HEADER
#undef UNICODE3_FOOTER
#undef UNICODE3_REC
unichar unicode3_getucase (unichar uchr)
{
int left_cop = 0;
int right_cop = (int)(sizeof(unicode3_lowers)/sizeof(unicode3_lowers[0])) - 1;
int robber = (26-1); /* We should optimize search for the most important case - 26 Latin chars */
unichar curr;
while (left_cop <= right_cop)
{
curr = unicode3_lowers[robber].u3c_cell;
if (uchr == curr)
return unicode3_lowers[robber].u3c_ucase;
if (uchr < curr)
right_cop = robber-1;
else
left_cop = robber+1;
robber = (left_cop+right_cop)/2;
}
return uchr;
}
/* Conversion to lowercase */
struct unicode3_tolower_s
{
unsigned short int u3c_cell;
unsigned short int u3c_lcase;
};
typedef struct unicode3_tolower_s unicode3_tolower_t;
#define UNICODE3_HEADER unicode3_tolower_t unicode3_uppers[] = {
#define UNICODE3_FOOTER {~0} };
#define UNICODE3_REC(cell,grp1,idx1,grp2,digit1,digit2,digit3,ucase1,lcase,ucase2,flg1,repl1,name1,name2,unicodename) \
{cell,lcase},
#include "unicode3_uppers.h"
#undef UNICODE3_HEADER
#undef UNICODE3_FOOTER
#undef UNICODE3_REC
unichar unicode3_getlcase (unichar uchr)
{
int left_cop = 0;
int right_cop = (int)(sizeof(unicode3_uppers)/sizeof(unicode3_uppers[0])) - 1;
int robber = (26-1); /* We should optimize search for the most important case - 26 Latin chars */
unichar curr;
while (left_cop <= right_cop)
{
curr = unicode3_uppers[robber].u3c_cell;
if (uchr == curr)
return unicode3_uppers[robber].u3c_lcase;
if (uchr < curr)
right_cop = robber-1;
else
left_cop = robber+1;
robber = (left_cop+right_cop)/2;
}
return uchr;
}
/* Conversion to lowercase */
#define UNICODE3_HEADER unichar unicode3_spaces[] = {
#define UNICODE3_FOOTER ~0 };
#define UNICODE3_REC(cell,grp1,idx1,grp2,digit1,digit2,digit3,ucase1,lcase,ucase2,flg1,repl1,name1,name2,unicodename) \
cell,
#include "unicode3_spaces.h"
#undef UNICODE3_HEADER
#undef UNICODE3_FOOTER
#undef UNICODE3_REC
int unicode3_isspace (unichar uchr)
{
int left_cop = 0;
int right_cop = (int)(sizeof(unicode3_spaces)/sizeof(unicode3_spaces[0])) - 1;
int robber = 1; /* We should optimize search for the most important case - ASCII whitespace */
unichar curr;
while (left_cop <= right_cop)
{
curr = unicode3_spaces[robber];
if (uchr == curr)
return 1;
if (uchr < curr)
right_cop = robber-1;
else
left_cop = robber+1;
robber = (left_cop+right_cop)/2;
}
return 0;
}
/* Testing */
#ifdef LANGFUNC_TEST
struct unicode3_charinfo_s
{
unsigned short int u3c_cell;
unsigned short int u3c_ucase;
unsigned short int u3c_lcase;
};
typedef struct unicode3_charinfo_s unicode3_charinfo_t;
#define UNICODE3_HEADER unicode3_charinfo_t unicode3_all_chars[] = {
#define UNICODE3_FOOTER {~0} };
#define UNICODE3_REC(cell,grp1,idx1,grp2,digit1,digit2,digit3,ucase1,lcase,ucase2,flg1,repl1,name1,name2,unicodename) \
{cell,ucase1,lcase},
#include "unicode3_all_chars.h"
#undef UNICODE3_HEADER
#undef UNICODE3_FOOTER
#undef UNICODE3_REC
#endif
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