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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "runes.h"
static void runes_config_set_defaults(RunesTerm *t);
static FILE *runes_config_get_config_file();
static void runes_config_process_config_file(RunesTerm *t, FILE *config_file);
static void runes_config_set(RunesTerm *t, char *key, char *value);
void runes_config_init(RunesTerm *t, int argc, char *argv[])
{
UNUSED(argc);
UNUSED(argv);
memset((void *)t, 0, sizeof(*t));
runes_config_set_defaults(t);
runes_config_process_config_file(t, runes_config_get_config_file());
}
static void runes_config_set_defaults(RunesTerm *t)
{
t->font_name = "monospace 10";
}
static FILE *runes_config_get_config_file()
{
char *home, *config_dir, *path;
size_t home_len, config_dir_len;
FILE *file;
home = getenv("HOME");
home_len = strlen(home);
config_dir = getenv("XDG_CONFIG_HOME");
if (config_dir) {
config_dir = strdup(config_dir);
}
else {
config_dir = malloc(home_len + sizeof("/.config") + 1);
strcpy(config_dir, home);
strcpy(config_dir + home_len, "/.config");
}
config_dir_len = strlen(config_dir);
path = malloc(config_dir_len + sizeof("/runes/runes.conf") + 1);
strcpy(path, config_dir);
strcpy(path + config_dir_len, "/runes/runes.conf");
free(config_dir);
if ((file = fopen(path, "r"))) {
free(path);
return file;
}
free(path);
path = malloc(home_len + sizeof("/.runesrc") + 1);
strcpy(path, home);
strcpy(path + home_len, "/.runesrc");
if ((file = fopen(path, "r"))) {
free(path);
return file;
}
free(path);
if ((file = fopen("/etc/runesrc", "r"))) {
return file;
}
return NULL;
}
static void runes_config_process_config_file(RunesTerm *t, FILE *config_file)
{
char line[1024];
if (!config_file) {
return;
}
while (fgets(line, 1024, config_file)) {
char *kbegin, *kend, *vbegin, *vend;
size_t len;
len = strlen(line);
if (line[len - 1] == '\n') {
line[len - 1] = '\0';
len--;
}
kbegin = line + strspn(line, " \t");
kend = kbegin + strcspn(kbegin, " \t=");
vbegin = kend + strspn(kend, " \t");
if (*vbegin != '=') {
fprintf(stderr, "couldn't parse line: '%s'\n", line);
}
vbegin++;
vbegin = vbegin + strspn(vbegin, " \t");
vend = line + len;
*kend = '\0';
*vend = '\0';
runes_config_set(t, kbegin, vbegin);
}
}
static void runes_config_set(RunesTerm *t, char *key, char *val)
{
if (!strcmp(key, "font")) {
t->font_name = strdup(val);
}
else {
fprintf(stderr, "unknown option: '%s'\n", key);
}
}
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