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#include <stdio.h>
#include <string.h>
#include <strings.h>
#include "sway/commands.h"
#include "sway/config.h"
#include "list.h"
#include "log.h"
#include "stringop.h"
// sort in order of longest->shortest
static int compare_set_qsort(const void *_l, const void *_r) {
struct sway_variable const *l = *(void **)_l;
struct sway_variable const *r = *(void **)_r;
return strlen(r->name) - strlen(l->name);
}
void free_sway_variable(struct sway_variable *var) {
if (!var) {
return;
}
free(var->name);
free(var->value);
free(var);
}
struct cmd_results *cmd_set(int argc, char **argv) {
struct cmd_results *error = NULL;
if ((error = checkarg(argc, "set", EXPECTED_AT_LEAST, 2))) {
return error;
}
if (argv[0][0] != '$') {
return cmd_results_new(CMD_INVALID, "variable '%s' must start with $", argv[0]);
}
struct sway_variable *var = NULL;
// Find old variable if it exists
int i;
for (i = 0; i < config->symbols->length; ++i) {
var = config->symbols->items[i];
if (strcmp(var->name, argv[0]) == 0) {
break;
}
var = NULL;
}
if (var) {
free(var->value);
} else {
var = malloc(sizeof(struct sway_variable));
if (!var) {
return cmd_results_new(CMD_FAILURE, "Unable to allocate variable");
}
var->name = strdup(argv[0]);
list_add(config->symbols, var);
list_qsort(config->symbols, compare_set_qsort);
}
var->value = join_args(argv + 1, argc - 1);
return cmd_results_new(CMD_SUCCESS, NULL);
}
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