Allow X multiplier for usize.

Use X3 to use the same multiplier for both width and height.

diff --git a/opt/bin/usize b/opt/bin/usize
index c287fa1..e965db3 100755 (executable)
--- a/opt/bin/usize
+++ b/opt/bin/usize
@@ -4,6 +4,7 @@
 #        size.
 # Usage: usize <width> [<height>]
 # Usage: usize x<width_multiplier> [x<height_multiplier>]
+# Usage: usize X<multiplier>
 #
 
 width=${COLUMNS:-80}
@@ -20,12 +21,16 @@ case $# in
 esac
 
 # Allow, eg, x2 for width or height.
-if [ ! "${width#x}" = "${width}" ]; then
+if [ ! "${width#X}" = "$width" ]; then
+  width="${width/X/x}"
+  height=$width
+fi
+if [ ! "${width#x}" = "$width" ]; then
   # Add a column for dividers.
   width=${width#x}
   width=$((width-1+(87*width)))
 fi
-if [ ! "${height#x}" = "${height}" ]; then
+if [ ! "${height#x}" = "$height" ]; then
   height=${height#x}
   height=$((24*height))
   # Add a row for tmux.