read & leading (and trailing) spaces

[Atom Smasher <atom@xxxxxxxxxxx>]

this doesn't work as advertised when the input includes leading and/or 
trailing spaces:
 	read -r foo ; print -r -- "${foo}"

i can work around that by setting IFS to either null (IFS='') or setting 
it to just a newline (IFS='
'). should i expect problems (in older or newer versions of zsh) using 
either of those tricks to make read recognize leading/trailing spaces?

thanks...


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