-
-/*
- * Returns the window title considering the current title format.
- * If no format is set, this will simply return the window's name.
- *
- */
-i3String *window_parse_title_format(i3Window *win) {
- /* We need to ensure that we only escape the window title if pango
- * is used by the current font. */
- const bool is_markup = font_is_pango();
-
- char *format = win->title_format;
- if (format == NULL)
- return i3string_copy(win->name);
-
- /* We initialize these lazily so we only escape them if really necessary. */
- const char *escaped_title = NULL;
- const char *escaped_class = NULL;
- const char *escaped_instance = NULL;
-
- /* We have to first iterate over the string to see how much buffer space
- * we need to allocate. */
- int buffer_len = strlen(format) + 1;
- for (char *walk = format; *walk != '\0'; walk++) {
- if (STARTS_WITH(walk, "%title")) {
- if (escaped_title == NULL)
- escaped_title = i3string_as_utf8(is_markup ? i3string_escape_markup(win->name) : win->name);
-
- buffer_len = buffer_len - strlen("%title") + strlen(escaped_title);
- walk += strlen("%title") - 1;
- } else if (STARTS_WITH(walk, "%class")) {
- if (escaped_class == NULL)
- escaped_class = is_markup ? g_markup_escape_text(win->class_class, -1) : win->class_class;
-
- buffer_len = buffer_len - strlen("%class") + strlen(escaped_class);
- walk += strlen("%class") - 1;
- } else if (STARTS_WITH(walk, "%instance")) {
- if (escaped_instance == NULL)
- escaped_instance = is_markup ? g_markup_escape_text(win->class_instance, -1) : win->class_instance;
-
- buffer_len = buffer_len - strlen("%instance") + strlen(escaped_instance);
- walk += strlen("%instance") - 1;
- }
- }
-
- /* Now we can parse the format string. */
- char buffer[buffer_len];
- char *outwalk = buffer;
- for (char *walk = format; *walk != '\0'; walk++) {
- if (*walk != '%') {
- *(outwalk++) = *walk;
- continue;
- }
-
- if (STARTS_WITH(walk + 1, "title")) {
- outwalk += sprintf(outwalk, "%s", escaped_title);
- walk += strlen("title");
- } else if (STARTS_WITH(walk + 1, "class")) {
- outwalk += sprintf(outwalk, "%s", escaped_class);
- walk += strlen("class");
- } else if (STARTS_WITH(walk + 1, "instance")) {
- outwalk += sprintf(outwalk, "%s", escaped_instance);
- walk += strlen("instance");
- }
- }
- *outwalk = '\0';
-
- i3String *formatted = i3string_from_utf8(buffer);
- i3string_set_markup(formatted, is_markup);
- return formatted;
-}