zathura/completion.c
2011-02-09 19:44:48 +08:00

66 lines
1.4 KiB
C

/* See LICENSE file for license and copyright information */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "completion.h"
#include "utils.h"
girara_completion_t*
cc_print(girara_session_t* session, char* input)
{
girara_completion_t* completion = girara_completion_init();
girara_completion_group_t* group = girara_completion_group_create(session, NULL);
if (!session || !input || !completion || !group)
return NULL;
girara_completion_add_group(completion, group);
char* const list_printers[] = {
"lpstat", "-v", NULL
};
char* output;
if (!execute_command(list_printers, &output)) {
girara_completion_free(completion);
return false;
}
/* parse single lines */
unsigned int prefix_length = strlen("device for ");
char* p = strtok(output, "\n");
char* q;
while (p) {
if (!(p = strstr(p, "device for ")) || !(q = strchr(p, ':'))) {
p = strtok(NULL, "\n");
continue;
}
unsigned int printer_length = q - p - prefix_length;
char* printer_name = malloc(sizeof(char) * printer_length);
if (!printer_name) {
p = strtok(NULL, "\n");
continue;
}
strncpy(printer_name, p + prefix_length, printer_length - 1);
printer_name[printer_length - 1] = '\0';
/* add printer */
girara_completion_group_add_element(group, printer_name, NULL);
free(printer_name);
/* next line */
p = strtok(NULL, "\n");
}
free(output);
return completion;
}