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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "glk/unicode.h"
#include "glk/unicode_gen.h"
#include "common/textconsole.h"
namespace Glk {
size_t strlen_uni(const uint32 *s) {
size_t len = 0;
while (*s++)
++len;
return len;
}
uint bufferChangeCase(uint32 *buf, uint len, uint numchars, BufferChangeCase destcase,
BufferChangeCond cond, int changerest) {
uint ix, jx;
uint32 *outbuf;
uint32 *newoutbuf;
uint outcount;
int dest_block_rest = 0, dest_block_first = 0;
int dest_spec_rest = 0, dest_spec_first = 0;
switch (cond) {
case COND_ALL:
dest_spec_rest = destcase;
dest_spec_first = destcase;
break;
case COND_LINESTART:
if (changerest)
dest_spec_rest = CASE_LOWER;
else
dest_spec_rest = CASE_IDENT;
dest_spec_first = destcase;
break;
default:
break;
}
dest_block_rest = dest_spec_rest;
if (dest_block_rest == CASE_TITLE)
dest_block_rest = CASE_UPPER;
dest_block_first = dest_spec_first;
if (dest_block_first == CASE_TITLE)
dest_block_first = CASE_UPPER;
newoutbuf = nullptr;
outcount = 0;
outbuf = buf;
for (ix = 0; ix < numchars; ix++) {
int target;
int isfirst;
uint res;
uint *special;
uint *ptr;
uint speccount;
uint32 ch = buf[ix];
isfirst = (ix == 0);
target = (isfirst ? dest_block_first : dest_block_rest);
if (target == CASE_IDENT) {
res = ch;
} else {
gli_case_block_t *block;
GET_CASE_BLOCK(ch, &block);
if (!block)
res = ch;
else
res = block[ch & 0xFF][target];
}
if (res != 0xFFFFFFFF || res == ch) {
// simple case
if (outcount < len)
outbuf[outcount] = res;
outcount++;
continue;
}
target = (isfirst ? dest_spec_first : dest_spec_rest);
// complicated cases
GET_CASE_SPECIAL(ch, &special);
if (!special) {
warning("inconsistency in cgunigen.c");
continue;
}
ptr = &unigen_special_array[special[target]];
speccount = *(ptr++);
if (speccount == 1) {
// simple after all
if (outcount < len)
outbuf[outcount] = ptr[0];
outcount++;
continue;
}
// Now we have to allocate a new buffer, if we haven't already.
if (!newoutbuf) {
newoutbuf = new uint32[len + 1];
if (!newoutbuf)
return 0;
if (outcount)
memcpy(newoutbuf, buf, outcount * sizeof(uint32));
outbuf = newoutbuf;
}
for (jx = 0; jx < speccount; jx++) {
if (outcount < len)
outbuf[outcount] = ptr[jx];
outcount++;
}
}
if (newoutbuf) {
uint finallen = outcount;
if (finallen > len)
finallen = len;
if (finallen)
memcpy(buf, newoutbuf, finallen * sizeof(uint));
free(newoutbuf);
}
return outcount;
}
} // End of namespace Glk
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