# parse data and output simplified format.
# usage: parse_simplify <STRING>
parse_simplify()
{
  echo "${*}" | \
    sed -e "s/ /_/g" \
        -e "s/[^[:alnum:]_-]//g" \
        -e "s/_\+/_/g" -e "s/-\+/-/g" \
        -e "s/_-/_/g" -e "s/-_/_/g" \
        -e "s/_\+/_/g" \
        -e "s/^_//" -e "s/_$//"
}

# Parse to CamelCase.
# Usage: parse_camel <STRING>
parse_camel()
{
  local IFS=${IFS}_-
  local parts=($(parse_simplify ${1}))
  local result

  for part in "${parts[@]}"; do
    local word="${part^}"
    result="${result}${word}"
  done
  
  echo "${result}"
}

# parse data keeping only alphanumeric characters.
# usage: parse_alnum <STRING>
parse_alnum()
{
  echo "${*}" | \
    sed -e "s/[^[:alnum:]]//g"
}