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/* gtmisc.c: Miscellaneous functions
for GlkTerm, curses.h implementation of the Glk API.
Designed by Andrew Plotkin <erkyrath@eblong.com>
http://www.eblong.com/zarf/glk/index.html
*/
#include "gtoption.h"
#include <stdlib.h>
#include <wchar.h>
#include <curses.h>
#include "glk.h"
#include "glkterm.h"
static unsigned char char_tolower_table[256];
static unsigned char char_toupper_table[256];
unsigned char char_printable_table[256];
unsigned char char_typable_table[256];
gidispatch_rock_t (*gli_register_obj)(void *obj, glui32 objclass) = NULL;
void (*gli_unregister_obj)(void *obj, glui32 objclass, gidispatch_rock_t objrock) = NULL;
gidispatch_rock_t (*gli_register_arr)(void *array, glui32 len, char *typecode) = NULL;
void (*gli_unregister_arr)(void *array, glui32 len, char *typecode,
gidispatch_rock_t objrock) = NULL;
/* Set up things. This is called from main(). */
void gli_initialize_misc()
{
int ix;
/* Initialize the to-uppercase and to-lowercase tables. These should
*not* be localized to a platform-native character set! They are
intended to work on Latin-1 data, and the code below correctly
sets up the tables for that character set. */
for (ix=0; ix<256; ix++) {
char_toupper_table[ix] = ix;
char_tolower_table[ix] = ix;
}
for (ix=0; ix<256; ix++) {
int lower_equiv;
if (ix >= 'A' && ix <= 'Z') {
lower_equiv = ix + ('a' - 'A');
}
else if (ix >= 0xC0 && ix <= 0xDE && ix != 0xD7) {
lower_equiv = ix + 0x20;
}
else {
lower_equiv = 0;
}
if (lower_equiv) {
char_tolower_table[ix] = lower_equiv;
char_toupper_table[lower_equiv] = ix;
}
}
}
void glk_exit()
{
gli_msgin_getchar(L"Hit any key to exit.", TRUE);
gli_streams_close_all();
endwin();
putchar('\n');
exit(0);
}
void glk_set_interrupt_handler(void (*func)(void))
{
gli_interrupt_handler = func;
}
void glk_tick()
{
/* Nothing to do here. */
}
void gidispatch_set_object_registry(
gidispatch_rock_t (*regi)(void *obj, glui32 objclass),
void (*unregi)(void *obj, glui32 objclass, gidispatch_rock_t objrock))
{
window_t *win;
stream_t *str;
fileref_t *fref;
gli_register_obj = regi;
gli_unregister_obj = unregi;
if (gli_register_obj) {
/* It's now necessary to go through all existing objects, and register
them. */
for (win = glk_window_iterate(NULL, NULL);
win;
win = glk_window_iterate(win, NULL)) {
win->disprock = (*gli_register_obj)(win, gidisp_Class_Window);
}
for (str = glk_stream_iterate(NULL, NULL);
str;
str = glk_stream_iterate(str, NULL)) {
str->disprock = (*gli_register_obj)(str, gidisp_Class_Stream);
}
for (fref = glk_fileref_iterate(NULL, NULL);
fref;
fref = glk_fileref_iterate(fref, NULL)) {
fref->disprock = (*gli_register_obj)(fref, gidisp_Class_Fileref);
}
}
}
void gidispatch_set_retained_registry(
gidispatch_rock_t (*regi)(void *array, glui32 len, char *typecode),
void (*unregi)(void *array, glui32 len, char *typecode,
gidispatch_rock_t objrock))
{
gli_register_arr = regi;
gli_unregister_arr = unregi;
}
gidispatch_rock_t gidispatch_get_objrock(void *obj, glui32 objclass)
{
switch (objclass) {
case gidisp_Class_Window:
return ((window_t *)obj)->disprock;
case gidisp_Class_Stream:
return ((stream_t *)obj)->disprock;
case gidisp_Class_Fileref:
return ((fileref_t *)obj)->disprock;
default: {
gidispatch_rock_t dummy;
dummy.num = 0;
return dummy;
}
}
}
void gidispatch_set_autorestore_registry(
long (*locatearr)(void *array, glui32 len, char *typecode,
gidispatch_rock_t objrock, int *elemsizeref),
gidispatch_rock_t (*restorearr)(long bufkey, glui32 len,
char *typecode, void **arrayref))
{
/* GlkTerm is not able to serialize its UI state. Therefore, it
does not have the capability of autosaving and autorestoring.
Therefore, it will never call these hooks. Therefore, we ignore
them and do nothing here. */
}
unsigned char glk_char_to_lower(unsigned char ch)
{
return char_tolower_table[ch];
}
unsigned char glk_char_to_upper(unsigned char ch)
{
return char_toupper_table[ch];
}
#ifdef NO_MEMMOVE
void *memmove(void *destp, void *srcp, int n)
{
char *dest = (char *)destp;
char *src = (char *)srcp;
if (dest < src) {
for (; n > 0; n--) {
*dest = *src;
dest++;
src++;
}
}
else if (dest > src) {
src += n;
dest += n;
for (; n > 0; n--) {
dest--;
src--;
*dest = *src;
}
}
return destp;
}
#endif /* NO_MEMMOVE */
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