#!/bin/bash

# -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~
# Experimenting with the meaning of the statement in the GNU Bash Manual:
#       "Any part of the pattern may be quoted to force the quoted portion to
#       be matched as a string."
# -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~ -~

server="hackerpublicradio.org"

#
# Try some regular expressions in a loop. The first is a standard type, but
# the second and third use a quoted regular expression metacharacter trying
# different quotes.
#
for re in \
    '^(hacker|hobby)publicradio\.org$' \
    '^(hacker|hobby)publicradio"."org$' \
    "^(hacker|hobby)publicradio'.'org$"
do
    echo "Using regular expression: $re"
    if [[ $server =~ $re ]]; then
        echo "This is HPR"
    else
        echo "No match"
    fi
done