case command and regex

[Daniel Wayne Armstrong]

I am trying to write a usable regex for the case command in a shell
script. For example:

---

#!/bin/bash
# testscript $1
if [[ $1 =~ [\+\-]([0-9]+)+$ ]]; then
        echo "Match is $1"
else
        echo "No match."
fi

while [ $# -gt 0 ]; do
        case $1 in
                [\+\-]\([0-9]+\)+$ ) echo "Match is $1"
                                exit
                                ;;
                * )             echo "No match."
                                exit
                                ;;
        esac
done

---

... and if I run "./testscript +77" I get:

Match is +77
No match.

I know I have the syntax messed up somehow in the case regex example
but I have tried it many different ways and can't seem to get it
right. I have tried extglob as well and no joy.

If anyone could see what I am missing it would be greatly appreciated! Thanks!


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