Re: PATCH: PROMPT_SP

[Wayne Davison <wayned@users.sourceforge.net>]

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On Sun, Jul 24, 2005 at 09:49:38AM +0000, Bart Schaefer wrote:
> How about '%B%S%#%s%b' ?

I've been using this suggestion for a couple days, and happened to
notice that sometimes some user-input would echo between the precmd
output and the PROMPT_CR output (causing a confusing wrap with the #
in column 1), so I added a CR to the end of the precmd's output.  I
also simplified the code a bit (i.e. no more termcap RI).

..wayne..

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--- FAQ.yo	19 Jul 2005 15:18:11 -0000	1.22
+++ FAQ.yo	26 Jul 2005 18:46:36 -0000
@@ -1664,13 +1664,10 @@ sect(How do I prevent the prompt overwri
     # Skip defining precmd if the PROMPT_SP option is available.
     if ! eval '[[ -o promptsp ]] 2>/dev/null'; then
       function precmd {
-        # An efficient version using termcap multi-right:
-        echo -n ' '       # Output 1 space
-        echotc RI $((COLUMNS - 3))
-        echo -n '  '      # Output 2 spaces
-        # Alternately, try replacing the above 3 lines with this echo
-        # that outputs a screen-column-width of spaces:
-        #echo -n ${(l:$COLUMNS:::):-}
+        # Output an inverse hash and a bunch spaces.  We include
+        # a CR at the end so that any user-input that gets echoed
+        # between this output and the prompt doesn't cause a wrap.
+        print -nP "%B%S#%s%b${(l:$((COLUMNS-1)):::):-}\r"
       }
     fi
   )