/*
* "streamable kanji code filter and converter"
* Copyright (c) 1998-2002 HappySize, Inc. All rights reserved.
*
* LICENSE NOTICES
*
* This file is part of "streamable kanji code filter and converter",
* which is distributed under the terms of GNU Lesser General Public
* License (version 2) as published by the Free Software Foundation.
*
* This software 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with "streamable kanji code filter and converter";
* if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA
*
* The author of this file:
*
*/
/*
* The source code included in this files was separated from mbfilter.c
* by Moriyoshi Koizumi <moriyoshi@php.net> on 20 Dec 2002. The file
* mbfilter.c is included in this package .
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
#include "mbfl_allocators.h"
#include "mbfl_string.h"
#include "mbfl_memory_device.h"
/*
* memory device output functions
*/
void
mbfl_memory_device_init(mbfl_memory_device *device, int initsz, int allocsz)
{
if (device) {
device->length = 0;
device->buffer = (unsigned char *)0;
if (initsz > 0) {
device->buffer = (unsigned char *)mbfl_malloc(initsz*sizeof(unsigned char));
if (device->buffer != NULL) {
device->length = initsz;
}
}
device->pos= 0;
if (allocsz > MBFL_MEMORY_DEVICE_ALLOC_SIZE) {
device->allocsz = allocsz;
} else {
device->allocsz = MBFL_MEMORY_DEVICE_ALLOC_SIZE;
}
}
}
void
mbfl_memory_device_realloc(mbfl_memory_device *device, int initsz, int allocsz)
{
unsigned char *tmp;
if (device) {
if (initsz > device->length) {
tmp = (unsigned char *)mbfl_realloc((void *)device->buffer, initsz*sizeof(unsigned char));
if (tmp != NULL) {
device->buffer = tmp;
device->length = initsz;
}
}
if (allocsz > MBFL_MEMORY_DEVICE_ALLOC_SIZE) {
device->allocsz = allocsz;
} else {
device->allocsz = MBFL_MEMORY_DEVICE_ALLOC_SIZE;
}
}
}
void
mbfl_memory_device_clear(mbfl_memory_device *device)
{
if (device) {
if (device->buffer) {
mbfl_free(device->buffer);
}
device->buffer = (unsigned char *)0;
device->length = 0;
device->pos = 0;
}
}
void
mbfl_memory_device_reset(mbfl_memory_device *device)
{
if (device) {
device->pos = 0;
}
}
void
mbfl_memory_device_unput(mbfl_memory_device *device)
{
if (device->pos > 0) {
device->pos--;
}
}
mbfl_string *
mbfl_memory_device_result(mbfl_memory_device *device, mbfl_string *result)
{
if (device && result) {
result->len = device->pos;
mbfl_memory_device_output4('\0', device);
result->val = device->buffer;
device->buffer = (unsigned char *)0;
device->length = 0;
device->pos= 0;
if (result->val == NULL) {
result->len = 0;
result = NULL;
}
} else {
result = NULL;
}
return result;
}
int
mbfl_memory_device_output(int c, void *data)
{
mbfl_memory_device *device = (mbfl_memory_device *)data;
if (device->pos >= device->length) {
/* reallocate buffer */
int newlen;
unsigned char *tmp;
newlen = device->length + device->allocsz;
tmp = (unsigned char *)mbfl_realloc((void *)device->buffer, newlen*sizeof(unsigned char));
if (tmp == NULL) {
return -1;
}
device->length = newlen;
device->buffer = tmp;
}
device->buffer[device->pos++] = (unsigned char)c;
return c;
}
int
mbfl_memory_device_output2(int c, void *data)
{
mbfl_memory_device *device = (mbfl_memory_device *)data;
if ((device->pos + 2) >= device->length) {
/* reallocate buffer */
int newlen;
unsigned char *tmp;
newlen = device->length + device->allocsz;
tmp = (unsigned char *)mbfl_realloc((void *)device->buffer, newlen*sizeof(unsigned char));
if (tmp == NULL) {
return -1;
}
device->length = newlen;
device->buffer = tmp;
}
device->buffer[device->pos++] = (unsigned char)((c >> 8) & 0xff);
device->buffer[device->pos++] = (unsigned char)(c & 0xff);
return c;
}
int
mbfl_memory_device_output4(int c, void* data)
{
mbfl_memory_device *device = (mbfl_memory_device *)data;
if ((device->pos + 4) >= device->length) {
/* reallocate buffer */
int newlen;
unsigned char *tmp;
newlen = device->length + device->allocsz;
tmp = (unsigned char *)mbfl_realloc((void *)device->buffer, newlen*sizeof(unsigned char));
if (tmp == NULL) {
return -1;
}
device->length = newlen;
device->buffer = tmp;
}
device->buffer[device->pos++] = (unsigned char)((c >> 24) & 0xff);
device->buffer[device->pos++] = (unsigned char)((c >> 16) & 0xff);
device->buffer[device->pos++] = (unsigned char)((c >> 8) & 0xff);
device->buffer[device->pos++] = (unsigned char)(c & 0xff);
return c;
}
int
mbfl_memory_device_strcat(mbfl_memory_device *device, const char *psrc)
{
int len;
unsigned char *w;
const unsigned char *p;
len = 0;
p = psrc;
while (*p) {
p++;
len++;
}
if ((device->pos + len) >= device->length) {
/* reallocate buffer */
int newlen = device->length + (len + MBFL_MEMORY_DEVICE_ALLOC_SIZE)*sizeof(unsigned char);
unsigned char *tmp = (unsigned char *)mbfl_realloc((void *)device->buffer, newlen*sizeof(unsigned char));
if (tmp == NULL) {
return -1;
}
device->length = newlen;
device->buffer = tmp;
}
p = psrc;
w = &device->buffer[device->pos];
device->pos += len;
while (len > 0) {
*w++ = *p++;
len--;
}
return len;
}
int
mbfl_memory_device_strncat(mbfl_memory_device *device, const char *psrc, int len)
{
unsigned char *w;
if ((device->pos + len) >= device->length) {
/* reallocate buffer */
int newlen = device->length + len + MBFL_MEMORY_DEVICE_ALLOC_SIZE;
unsigned char *tmp = (unsigned char *)mbfl_realloc((void *)device->buffer, newlen*sizeof(unsigned char));
if (tmp == NULL) {
return -1;
}
device->length = newlen;
device->buffer = tmp;
}
w = &device->buffer[device->pos];
device->pos += len;
while (len > 0) {
*w++ = *psrc++;
len--;
}
return len;
}
int
mbfl_memory_device_devcat(mbfl_memory_device *dest, mbfl_memory_device *src)
{
int n;
unsigned char *p, *w;
if ((dest->pos + src->pos) >= dest->length) {
/* reallocate buffer */
int newlen = dest->length + src->pos + MBFL_MEMORY_DEVICE_ALLOC_SIZE;
unsigned char *tmp = (unsigned char *)mbfl_realloc((void *)dest->buffer, newlen*sizeof(unsigned char));
if (tmp == NULL) {
return -1;
}
dest->length = newlen;
dest->buffer = tmp;
}
p = src->buffer;
w = &dest->buffer[dest->pos];
n = src->pos;
dest->pos += n;
while (n > 0) {
*w++ = *p++;
n--;
}
return n;
}
void
mbfl_wchar_device_init(mbfl_wchar_device *device)
{
if (device) {
device->buffer = (unsigned int *)0;
device->length = 0;
device->pos= 0;
device->allocsz = MBFL_MEMORY_DEVICE_ALLOC_SIZE;
}
}
void
mbfl_wchar_device_clear(mbfl_wchar_device *device)
{
if (device) {
if (device->buffer) {
mbfl_free(device->buffer);
}
device->buffer = (unsigned int*)0;
device->length = 0;
device->pos = 0;
}
}
int
mbfl_wchar_device_output(int c, void *data)
{
mbfl_wchar_device *device = (mbfl_wchar_device *)data;
if (device->pos >= device->length) {
/* reallocate buffer */
int newlen;
unsigned int *tmp;
newlen = device->length + device->allocsz;
tmp = (unsigned int *)mbfl_realloc((void *)device->buffer, newlen*sizeof(int));
if (tmp == NULL) {
return -1;
}
device->length = newlen;
device->buffer = tmp;
}
device->buffer[device->pos++] = c;
return c;
}
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