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README
also removes zsh backward incompatibility warning

README

@@ -1,23 +1,3 @@
-*******************************************************************************
-*                                                                             *
-*                  ZSH USERS BACKWARD COMPATIBILITY WARNING                   *
-*                                                                             *
-*   z now handles 'precmd' set up for zsh. Current users using zsh should     *
-*   remove the precmd function that was described in the installation         *
-*   instructions for previous versions.                                       *
-*                                                                             *
-*   In short, this:                                                           *
-*       . /path/to/z.sh                                                       *
-*       function precmd () {                                                  *
-*        _z --add "$(pwd -P)"                                                 *
-*       }                                                                     *
-*   should now just be:                                                       *
-*       . /path/to/z.sh                                                       *
-*                                                                             *
-*                  ZSH USERS BACKWARD COMPATIBILITY WARNING                   *
-*                                                                             *
-*******************************************************************************
-
 Z(1)				 User Commands				  Z(1)
 
 
@@ -72,6 +52,7 @@ NOTES
 	Set $_Z_DATA to change the datafile (default $HOME/.z).
 	Set $_Z_NO_RESOLVE_SYMLINKS to prevent symlink resolution.
 	Set $_Z_NO_PROMPT_COMMAND to handle PROMPT_COMMAND/precmd yourself.
+	Set $_Z_EXCLUDE_DIRS to an array of directories to exclude.
 	(These settings should go in .bashrc/.zshrc  before  the  lines  added
        above.)
 	Install  the provided man page z.1 somewhere like /usr/local/man/man1.
@@ -134,6 +115,10 @@ ENVIRONMENT
        The  environment  variable $_Z_NO_PROMPT_COMMAND can be set if you want
        to handle PROMPT_COMMAND or precmd yourself.
 
+       The environment variable $_Z_EXCLUDE_DIRS can be set  to  an  array  of
+       directories to exclude from tracking. $HOME is always excluded.	Direc‐
+       tories must be full paths without trailing slashes.
+
 
 FILES
        Data is stored in $HOME/.z. This  can  be  overridden  by  setting  the
@@ -149,4 +134,4 @@ SEE ALSO
 
 
 
-z				 February 2011				  Z(1)
+z				 January 2013				  Z(1)

z.1

@@ -1,4 +1,4 @@
-.TH Z "1" "February 2011" "z" "User Commands"
+.TH Z "1" "January 2013" "z" "User Commands"
 
 .SH NAME
 z \- jump around

z.sh

@@ -62,8 +62,8 @@ _z() {
     count += $2
    }
    END {
-    if( count > 1000 ) {
-     for( i in rank ) print i "|" 0.9*rank[i] "|" time[i] # aging
+    if( count > 6000 ) {
+     for( i in rank ) print i "|" 0.99*rank[i] "|" time[i] # aging
     } else for( i in rank ) print i "|" rank[i] "|" time[i]
    }
   ' 2>/dev/null >| "$tempfile"