mirror of
https://github.com/swaywm/sway.git
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62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
#define _XOPEN_SOURCE 700
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include "sway/commands.h"
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#include "sway/config.h"
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#include "list.h"
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#include "stringop.h"
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// sort in order of longest->shortest
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static int compare_set_qsort(const void *_l, const void *_r) {
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struct sway_variable const *l = *(void **)_l;
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struct sway_variable const *r = *(void **)_r;
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return strlen(r->name) - strlen(l->name);
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}
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struct cmd_results *cmd_set(int argc, char **argv) {
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char *tmp;
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struct cmd_results *error = NULL;
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if (!config->reading) return cmd_results_new(CMD_FAILURE, "set", "Can only be used in config file.");
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if ((error = checkarg(argc, "set", EXPECTED_AT_LEAST, 2))) {
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return error;
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}
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if (argv[0][0] != '$') {
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sway_log(L_INFO, "Warning: variable '%s' doesn't start with $", argv[0]);
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size_t size = snprintf(NULL, 0, "$%s", argv[0]);
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tmp = malloc(size + 1);
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if (!tmp) {
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return cmd_results_new(CMD_FAILURE, "set", "Not possible to create variable $'%s'", argv[0]);
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}
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snprintf(tmp, size+1, "$%s", argv[0]);
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argv[0] = tmp;
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}
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struct sway_variable *var = NULL;
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// Find old variable if it exists
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int i;
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for (i = 0; i < config->symbols->length; ++i) {
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var = config->symbols->items[i];
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if (strcmp(var->name, argv[0]) == 0) {
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break;
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}
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var = NULL;
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}
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if (var) {
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free(var->value);
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} else {
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var = malloc(sizeof(struct sway_variable));
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if (!var) {
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return cmd_results_new(CMD_FAILURE, "set", "Unable to allocate variable");
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}
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var->name = strdup(argv[0]);
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list_add(config->symbols, var);
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list_qsort(config->symbols, compare_set_qsort);
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}
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var->value = join_args(argv + 1, argc - 1);
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return cmd_results_new(CMD_SUCCESS, NULL, NULL);
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}
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