Re: Extended syntax conditionals stripped from Here-Documents

[Chet Ramey]

> Configuration: --enable-static-link --without-gnu-malloc
> 
> Description:
>       At least the ${varname+ ... } construct being stripped from 
> Here-Documents
>       I did not check the other extended syntax conditionals.

I think you're misunderstanding the difference between expansion and
evaluation.  The contents of the here document are expanded -- run through
all of the shell's word expansions -- but not evaluated.  The `for'
loop is not executed.

All of the ${...} expressions are expanded, but $i will expand to 0, and
we'll look at ${sparseZ[0]} to decide what to expand.  Since that's not
set, nothing gets substituted, and the expression apparently disappears.

Chet


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet )
                                                Live...Laugh...Love
Chet Ramey, ITS, CWRU    chet@po.cwru.edu    http://tiswww.tis.cwru.edu/~chet/