added 'SetXProp' action and (@PROP=foo) clientpattern

these two allow 'tagging' of arbitrary windows with 'tags' (or 'labels'). such 'tagged' windows can then be used in ':NextWindow (@PROP=foo)' commands to quickly cycle through a subset of available windows.
since the 'tags' are applied as real xproperties to a window they survive a restart of fluxbox or even another windowmanager. the user can also set the tags by using xprop(1).

the next step regarding the UI should be to visualize the tags of a window.

1 files changed, 9 insertions, 0 deletions

diff --git a/doc/asciidoc/client-patterns.txt b/doc/asciidoc/client-patterns.txt
index 85dac7b..5b00e0c 100644
--- a/doc/asciidoc/client-patterns.txt
+++ b/doc/asciidoc/client-patterns.txt
@@ -64,6 +64,9 @@ The following values are accepted for 'propertyname':::
 *Layer*;;
         The string name of the window's layer, which is one of
         *AboveDock*, *Dock*, *Top*, *Normal*, *Bottom*, *Desktop*
+*@XPROP*;;
+        A string, corresponding to any xproperty (Use either the *xprop(1)*
+        utility or the 'SetXProp' command to set a xproperty to a window)
 
 .Matches any windows with the CLASSNAME of "xterm"
 ..........
@@ -79,3 +82,9 @@ The following values are accepted for 'propertyname':::
 ...........
 (Head=[mouse]) (Layer!=[current])
 ...........
+
+.Matches any windows having a xproperty named FOO with "bar" in it
+..............
+(@FOO=.*bar.*)
+..............
+