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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include "sayeth.h"
extern int do_fill;
extern size_t START_Y_BOX;
extern size_t START_Y_CARET;
extern size_t START_Y_DATA;
extern const char *A_TAB;
extern char wspace;
extern char box_top_left;
extern char box_top;
extern char box_top_right;
extern char box_side;
extern char box_bottom_left;
extern char box_bottom;
extern char box_bottom_right;
struct Driver **drivers = NULL;
size_t drivers_alloc = DRIVERS_ALLOC_DEFAULT;
size_t drivers_used = 0;
struct Driver *driver_load(char *filename) {
FILE *fp = NULL;
struct Driver *driver = NULL;
driver = calloc(1, sizeof(*driver));
if (!driver) {
return NULL;
}
fp = fopen(filename, "r");
if (!fp) {
return NULL;
}
for (size_t i = 0; i < 9; i++) {
wchar_t buf[INPUT_BUFSIZ] = {0};
ssize_t lastpos = ftell(fp);
if (fgetws(buf, sizeof(buf) - 1, fp) == NULL) {
break;
}
if (!wcslen(buf) || buf[0] == '#') {
i--;
continue;
}
buf[wcslen(buf) - 1] = '\0';
switch (i) {
case 0:
driver->name = wcsdup(buf);
if (!driver->name) {
fclose(fp);
return NULL;
}
break;
case 1:
driver->box_indent = wcstol(buf, NULL, 10);
break;
case 2:
driver->box_elements = wcsdup(buf);
if (!driver->box_elements) {
fclose(fp);
return NULL;
}
break;
case 3:
driver->caret_pos = wcstol(buf, NULL, 10);
break;
case 4:
driver->caret_indent = wcstol(buf, NULL, 10);
break;
case 5:
driver->caret_attached = wcstol(buf, NULL, 10);
break;
case 6:
driver->caret = wcsdup(buf);
if (!driver->caret) {
fclose(fp);
return NULL;
}
break;
case 7:
driver->data_indent = wcstol(buf, 0, 10);
break;
case 8:
driver->data = calloc(DATA_BUFSIZ, sizeof(*driver->data));
if (!driver->data) {
fclose(fp);
return NULL;
}
fseek(fp, lastpos, SEEK_SET);
wint_t c = 0;
size_t n = 0;
while ((c = fgetwc(fp)) != WEOF) {
driver->data[n++] = (wchar_t) c;
}
break;
default:
break;
}
}
fclose(fp);
return driver;
}
int driver_register(struct Driver *driver) {
if (!drivers) {
drivers = calloc(drivers_alloc, sizeof(**drivers));
}
if (drivers_used > drivers_alloc) {
struct Driver **tmp;
drivers_alloc += DRIVERS_ALLOC_DEFAULT;
tmp = realloc(drivers, (sizeof(**drivers) * drivers_alloc));
if (!tmp) {
return -1;
}
drivers = tmp;
for (size_t i = drivers_used; i < drivers_alloc; i++) {
drivers[i] = calloc(1, sizeof(*drivers[i]));
if (!drivers[i])
return -2;
}
}
drivers[drivers_used] = calloc(1, sizeof(*drivers[0]));
if (!drivers[drivers_used])
return -2;
memcpy(drivers[drivers_used], driver, sizeof(*drivers[0]));
drivers_used++;
return 0;
}
void drivers_free(void) {
for (size_t i = 0; i < drivers_alloc; i++) {
if (drivers[i]) {
if (drivers[i]->name)
free(drivers[i]->name);
if (drivers[i]->data)
free(drivers[i]->data);
if (drivers[i]->caret)
free(drivers[i]->caret);
if (drivers[i]->box_elements)
free(drivers[i]->box_elements);
free(drivers[i]);
}
}
free(drivers);
}
void driver_run(struct Driver *driver, wchar_t *input) {
wchar_t *elem = driver->box_elements;
box_top_left = elem[0];
box_top = elem[1];
box_top_right = elem[2];
box_side = elem[3];
box_bottom_left = elem[4];
box_bottom = elem[5];
box_bottom_right = elem[6];
START_Y_BOX = driver->box_indent;
START_Y_CARET = driver->caret_indent;
START_Y_DATA = driver->data_indent;
if (!driver->caret_pos) {
box_printf(L"%S", input);
caret_draw(driver->caret, START_Y_CARET, driver->caret_attached);
}
if (driver->data) {
data_draw(driver->data, START_Y_DATA);
}
if (driver->caret_pos) {
caret_draw(driver->caret, START_Y_CARET, driver->caret_attached);
box_printf(L"%S", input);
}
}
struct Driver *driver_lookup(wchar_t *name) {
for (size_t i = 0; drivers[i] != NULL; i++) {
if (!wcscmp(drivers[i]->name, name)) {
return drivers[i];
}
}
return NULL;
}
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