From a94013f5857e4a335cc1da4cf3926a613f422b5c Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Sun, 26 Mar 2017 13:13:34 +0200
Subject: command: change and simplify filter toggle syntax

"@name:!" becomes simply "@name". This is actually slightly more complex
to parse, but makes for a much simpler syntax and will be less weird to
the user. Suggested by haasn.

The old syntax is now rejected with an error.

Also add some more explicit error checks, instead of e.g. allowing empty
filter names and erroring only when it's not found.
---
 DOCS/man/vf.rst | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'DOCS/man/vf.rst')

diff --git a/DOCS/man/vf.rst b/DOCS/man/vf.rst
index a3f7ee6dab..e61b758af5 100644
--- a/DOCS/man/vf.rst
+++ b/DOCS/man/vf.rst
@@ -24,6 +24,10 @@ syntax is:
 
         ``["@"<label-name>":"] ["!"] <filter-name> [ "=" <filter-parameter-list> ]``
 
+    or for the special "toggle" syntax (see ``vf`` command):
+
+        ``"@"<label-name>``
+
     and the ``filter-parameter-list``:
 
         ``<filter-parameter> | <filter-parameter> "," <filter-parameter-list>``
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