did the way arrays get indexed change between 4.2 and 4.3?

[William Scott <wgscott@xxxxxxxxxxxxxxxxxx>]

I am using zsh-4.3.4

I am using the following function to put the current working  
directory and penultimate directory in a tab on iTerm (also works  
with Konsole):

settab () {
        tab_label="$PWD:h:t/$PWD:t"
        rlength="20"
        echo -ne "\e]1;$tab_label[-$rlength,-1]\a"
}

The idea is that if the string is longer than 20 characters, it  
truncates it from the right, instead of the left (default behavior).

On 4.3.4 this works great.  On 4.2.3, if the original string has  
fewer than 20 characters, the tab is blank.

Is there a decent work-around, as I hate to conditionally test for  
the zsh version every time the tab dynamically updates.





William G. Scott

contact info:  http://chemistry.ucsc.edu/~wgscott