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preedit.c
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preedit.c
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/*
Copyright (c) 2005-2013 uim Project https://github.com/uim/uim
All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the
following conditions are met:
1. Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
3. Neither the name of authors nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "preedit.h"
preedit *
create_preedit()
{
preedit *pe;
pe = uim_malloc(sizeof(preedit));
pe->valid = 0;
pe->head = pe->tail = NULL;
return pe;
}
void
add_preedit(preedit *pe, int attr, const char *str)
{
preedit_buffer *pb;
pe->valid = 1;
pb = uim_malloc(sizeof(preedit_buffer));
if (pe->head == NULL) {
pe->head = pb;
pe->tail = pb;
} else {
pe->tail->next = pb;
pe->tail = pb;
}
if (strlen(str) > 0) {
pb->str = uim_strdup(str);
pe->length += strlen(str);
} else {
pb->str = NULL;
}
pb->attr = attr;
pb->next = NULL;
}
void
clear_preedit(preedit *pe)
{
preedit_buffer *p, *ptmp;
pe->valid = 0;
p = pe->head;
while (p) {
ptmp = p;
p = p->next;
free(ptmp->str);
free(ptmp);
}
pe->head = pe->tail = NULL;
pe->length = 0;
}
int
show_preedit(preedit *pe)
{
preedit_buffer *p;
p = pe->head;
if (p == NULL || pe->length == 0) {
a_printf(" ( e ) ");
return 0;
}
a_printf("( p ");
while (p) {
a_printf(" ( ");
if (p->attr & UPreeditAttr_Reverse)
a_putchar('r');
if (p->attr & UPreeditAttr_UnderLine)
a_putchar('u');
if (p->attr & UPreeditAttr_Cursor)
a_putchar('c');
if (p->attr & UPreeditAttr_Separator)
a_putchar('s');
a_putchar('t');
a_putchar(' ');
output_with_escape(p->str);
a_printf(" ) ");
p = p->next;
}
a_printf(" ) ");
return 1;
}
int
show_preedit_force(preedit *pe)
{
if (! show_preedit(pe))
a_printf("( p (t \"\") ) ");
return 1;
}