vis

commit 82eb7d5ee5d14d290b3bb49d9b6bdffb4de26225
parent cfb8f4c8cefab2b5f089f1c621b602f9b9277849
Author: Marc André Tanner <mat@brain-dump.org>
Date:   Sat,  1 Nov 2014 11:11:20 +0100

Improve usage as a filter

When used as in

 echo Hello World | vis | cat

prevent intermediate writes to stdout, only save to stdout when also
quiting the editor.

Diffstat:
M
vis.c
 | 
8
++++++--

1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/vis.c b/vis.c
@@ -1416,8 +1416,12 @@ static bool cmd_write(Filerange *range, const char *argv[]) {
 	if (!argv[1])
 		argv[1] = text_filename_get(text);
 	if (!argv[1]) {
-		if (text_fd_get(text) == STDIN_FILENO)
-			return text_range_write(text, range, STDOUT_FILENO) >= 0;
+		if (text_fd_get(text) == STDIN_FILENO) {
+			if (strchr(argv[0], 'q'))
+				return text_range_write(text, range, STDOUT_FILENO) >= 0;
+			editor_info_show(vis, "No filename given, use 'wq' to write to stdout");
+			return false;
+		}
 		editor_info_show(vis, "Filename expected");
 		return false;
 	}