#!/bin/bash
 
function handle_value {
  local one=$1
  local two=$2
 
  echo "i found ${one}-${two}"
}
 
function match_all {
  local current=$1
  local regex=$2
  local handler=$3
 
  while [[ ${current} =~ ${regex} ]]; do
    "${handler}" "${BASH_REMATCH[@]:1}"
 
    # trim off the portion already matched
    current="${current#*${BASH_REMATCH[0]}}"
  done
}
 
match_all \
  "DO-BATCH BATCH-DO" \
  '([[:alpha:]]+)-([[:alpha:]]+)' \
  'handle_value'

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