Greg Wooledge wrote:
The only Bourne-family shell that can manipulate arrays whose names are
passed to a function is ksh93, with its "nameref" command. Bash has
nothing analogous to that yet.
=============
I don't understand.
Are you saying that ${!nameofvar} isnt' supported?
I need a function to test to see if a word was already in
an array (no I haven't made it space/bracket...whatever proof...just a bit
more work)
But it uses indirect access to an array passed in and seem to
work fine.
So I am unclear as to what you are referring to?
I used named vars instead of $1/$2...but it's likely a similar
approach, and it's done w/o a loop (put the array in to an
assoc array, and then test to see if the element exists in the
assoc array)...
#!/bin/bash
# ex: _in "expr" <name of array>
# _in file.c @
# returns shell true/false (0/1)
function _in {
local exp=${1:?};
local arr=${2:?};
read d t rest < <(typeset -p "$arr")
if [[ ${t//[^a]/} != a ]]; then
echo "var ${!arr} is not an array"
return 1
fi
local -A _Assoc_
local str=$( printf "declare -A _Assoc_=(";printf '[%s]=1 ' $(eval "echo
\${$arr[@]}") ; printf ")")
eval "$str"
((${_Assoc_[$exp]}))
}
declare -a foo1=(one two three buckle the tree)
for w in how does the tree get buckled on one; do
_in $w foo1 && echo $w
done
----
_in.shh
the
tree
one
