}
/* replaces the bar format character sequences (like in tmux(1)) */
+char *
+bar_replace_seq(char *fmt, char *fmtrep, struct swm_region *r, size_t *offrep,
+ size_t sz)
+{
+ char *ptr;
+ char num[8], tmp[SWM_BAR_MAX];
+ int limit;
+ size_t len, numoff = 0;
+
+ /* reset strlcat(3) buffer */
+ *tmp = '\0';
+
+ /* get number, if any */
+ fmt++;
+ while (*fmt != '\0' && isdigit((unsigned char) *fmt)) {
+ if (numoff >= sizeof num - 1)
+ break;
+ num[numoff++] = *fmt++;
+ }
+ num[numoff] = '\0';
+
+ if ((limit = strtonum(num, 1, sizeof tmp - 1, NULL)) == 0)
+ limit = sizeof tmp - 1;
+
+ /* if number is too big, skip to the first non-digit */
+ if (numoff >= sizeof num - 1) {
+ while (*fmt != '\0' && isdigit((unsigned char) *fmt))
+ fmt++;
+ }
+ /* there is nothing to replace (ie EOL) */
+ if (*fmt == '\0')
+ return (fmt);
+
+ switch (*fmt) {
+ case 'A':
+ snprintf(tmp, sizeof tmp, "%s", bar_ext);
+ break;
+ case 'C':
+ bar_class_name(tmp, sizeof tmp, r);
+ break;
+ case 'D':
+ bar_workspace_name(tmp, sizeof tmp, r);
+ break;
+ case 'I':
+ snprintf(tmp, sizeof tmp, "%d", r->ws->idx + 1);
+ break;
+ case 'N':
+ snprintf(tmp, sizeof tmp, "%d", r->s->idx + 1);
+ break;
+ case 'S':
+ snprintf(tmp, sizeof tmp, "%s", r->ws->stacker);
+ break;
+ case 'T':
+ bar_title_name(tmp, sizeof tmp, r);
+ break;
+ case 'U':
+ bar_urgent(tmp, sizeof tmp);
+ break;
+ case 'V':
+ snprintf(tmp, sizeof tmp, "%s", bar_vertext);
+ break;
+ case 'W':
+ bar_window_name(tmp, sizeof tmp, r);
+ break;
+ default:
+ /* unknown character sequence; copy as-is */
+ snprintf(tmp, sizeof tmp, "+%c", *fmt);
+ break;
+ }
+
+ len = strlen(tmp);
+ ptr = tmp;
+ if (len < limit)
+ limit = len;
+ while (limit-- > 0) {
+ if (*offrep >= sz - 1)
+ break;
+ fmtrep[(*offrep)++] = *ptr++;
+ }
+
+ fmt++;
+ return (fmt);
+}
+
void
bar_replace(char *fmt, char *fmtrep, struct swm_region *r, size_t sz)
{
- char *ptr;
- char tmp[SWM_BAR_MAX];
size_t off;
off = 0;
- ptr = fmt;
- while (*ptr != '\0') {
- if (*ptr != '+') {
+ while (*fmt != '\0') {
+ if (*fmt != '+') {
/* skip ordinary characters */
if (off >= sz - 1)
break;
- fmtrep[off++] = *ptr++;
+ fmtrep[off++] = *fmt++;
continue;
}
/* character sequence found; replace it */
- *tmp = '\0';
-
- switch (*++ptr) {
- case 'A':
- snprintf(tmp, sizeof tmp, "%s", bar_ext);
- break;
- case 'C':
- bar_class_name(tmp, sizeof tmp, r);
- break;
- case 'D':
- bar_workspace_name(tmp, sizeof tmp, r);
- break;
- case 'I':
- snprintf(tmp, sizeof tmp, "%d", r->ws->idx + 1);
- break;
- case 'N':
- snprintf(tmp, sizeof tmp, "%d", r->s->idx + 1);
+ fmt = bar_replace_seq(fmt, fmtrep, r, &off, sz);
+ if (off >= sz - 1)
break;
- case 'S':
- snprintf(tmp, sizeof tmp, "%s", r->ws->stacker);
- break;
- case 'T':
- bar_title_name(tmp, sizeof tmp, r);
- break;
- case 'U':
- bar_urgent(tmp, sizeof tmp);
- break;
- case 'V':
- snprintf(tmp, sizeof tmp, "%s", bar_vertext);
- break;
- case 'W':
- bar_window_name(tmp, sizeof tmp, r);
- break;
- default:
- /* unknown character sequence; copy as-is */
- snprintf(tmp, sizeof tmp, "+%c", *ptr);
- break;
- }
-
- off += snprintf(fmtrep + off, sz - off, "%s", tmp);
- if (off >= sz - 1) {
- off = sz;
- break;
- }
- ptr++;
}
fmtrep[off] = '\0';