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Add a way to append or prepend to a format if the length has been limited.

pull/1761/head
nicm 2019-05-26 12:02:42 +00:00
parent 6dee409981
commit 6431005169
2 changed files with 43 additions and 16 deletions
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48
format.c
View File

@ -755,6 +755,16 @@ format_merge(struct format_tree *ft, struct format_tree *from)
} }
} }
/* Add item bits to tree. */
static void
format_create_add_item(struct format_tree *ft, struct cmdq_item *item)
{
if (item->cmd != NULL)
format_add(ft, "command", "%s", item->cmd->entry->name);
if (item->shared != NULL && item->shared->formats != NULL)
format_merge(ft, item->shared->formats);
}
/* Create a new tree. */ /* Create a new tree. */
struct format_tree * struct format_tree *
format_create(struct client *c, struct cmdq_item *item, int tag, int flags) format_create(struct client *c, struct cmdq_item *item, int tag, int flags)
@ -800,12 +810,8 @@ format_create(struct client *c, struct cmdq_item *item, int tag, int flags)
format_add(ft, "window_menu", "%s", DEFAULT_WINDOW_MENU); format_add(ft, "window_menu", "%s", DEFAULT_WINDOW_MENU);
format_add(ft, "pane_menu", "%s", DEFAULT_PANE_MENU); format_add(ft, "pane_menu", "%s", DEFAULT_PANE_MENU);
if (item != NULL) { if (item != NULL)
if (item->cmd != NULL) format_create_add_item(ft, item);
format_add(ft, "command", "%s", item->cmd->entry->name);
if (item->shared != NULL && item->shared->formats != NULL)
format_merge(ft, item->shared->formats);
}
return (ft); return (ft);
} }
@ -1408,7 +1414,7 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
char **buf, size_t *len, size_t *off) char **buf, size_t *len, size_t *off)
{ {
struct window_pane *wp = ft->wp; struct window_pane *wp = ft->wp;
const char *errptr, *copy, *cp; const char *errptr, *copy, *cp, *marker;
char *copy0, *condition, *found, *new; char *copy0, *condition, *found, *new;
char *value, *left, *right; char *value, *left, *right;
size_t valuelen; size_t valuelen;
@ -1448,12 +1454,16 @@ format_replace(struct format_tree *ft, const char *key, size_t keylen,
sub = fm; sub = fm;
break; break;
case '=': case '=':
if (fm->argc != 1) if (fm->argc != 1 && fm->argc != 2)
break; break;
limit = strtonum(fm->argv[0], INT_MIN, INT_MAX, limit = strtonum(fm->argv[0], INT_MIN, INT_MAX,
&errptr); &errptr);
if (errptr != NULL) if (errptr != NULL)
limit = 0; limit = 0;
if (fm->argc == 2 && fm->argv[1] != NULL)
marker = fm->argv[1];
else
marker = NULL;
break; break;
case 'l': case 'l':
modifiers |= FORMAT_LITERAL; modifiers |= FORMAT_LITERAL;
@ -1668,14 +1678,24 @@ done:
/* Truncate the value if needed. */ /* Truncate the value if needed. */
if (limit > 0) { if (limit > 0) {
new = format_trim_left(value, limit); new = format_trim_left(value, limit);
format_log(ft, "applied length limit %d: %s", limit, new); if (marker != NULL && strcmp(new, value) != 0) {
free(value); free(value);
value = new; xasprintf(&value, "%s%s", new, marker);
} else {
free(value);
value = new;
}
format_log(ft, "applied length limit %d: %s", limit, value);
} else if (limit < 0) { } else if (limit < 0) {
new = format_trim_right(value, -limit); new = format_trim_right(value, -limit);
format_log(ft, "applied length limit %d: %s", limit, new); if (marker != NULL && strcmp(new, value) != 0) {
free(value); free(value);
value = new; xasprintf(&value, "%s%s", marker, new);
} else {
free(value);
value = new;
}
format_log(ft, "applied length limit %d: %s", limit, value);
} }
/* Expand the buffer and copy in the value. */ /* Expand the buffer and copy in the value. */

11
tmux.1
View File

@ -3989,9 +3989,16 @@ a number and a colon.
Positive numbers count from the start of the string and negative from the end, Positive numbers count from the start of the string and negative from the end,
so so
.Ql #{=5:pane_title} .Ql #{=5:pane_title}
will include at most the first 5 characters of the pane title, or will include at most the first five characters of the pane title, or
.Ql #{=-5:pane_title} .Ql #{=-5:pane_title}
the last 5 characters. the last five characters.
A suffix or prefix may be given as a second argument - if provided then it is
appended or prepended to the string if the length has been trimmed, for example
.Ql #{=/5/...:pane_title}
will append
.Ql ...
if the pane title is more than five characters.
.Pp
Prefixing a time variable with Prefixing a time variable with
.Ql t: .Ql t:
will convert it to a string, so if will convert it to a string, so if