#!/bin/bash
(
  cat <<-EOF
	/* This struct of default codesets has been generated by fetching
	   locale data from a Linux system using $(rpm -q glibc | head -1) on $(date +%F) */
	struct default_codeset_t
	{
	  const char *locale;
	  const char *codeset;
	} default_codeset[] =
	{
	EOF
  while read line
  do
    locale=$(echo "${line}" | awk '/^locale:/{ print $2; }')
    if [ -z "${locale}" ]
    then
      continue
    fi
    # No aliases
    idx=$(expr index "${locale}" '_')
    if [ "${idx}" -eq 0 ]
    then
      continue
    fi
    # No explicit codesets
    idx=$(expr index "${locale}" '.')
    if [ "${idx}" -ne 0 ]
    then
      continue
    fi
    while read line2
    do
      codeset=$(echo "${line2}" | awk '/codeset/{ print $3; }')
      if [ -n "${codeset}" ]
      then
	# Translate into internal codeset names. */
	case "${codeset}" in
	  BIG5*)	codeset="BIG5";;
	  *)		;;
	esac
	printf "  { \"%s\", \"%s\" },\n" "${locale}" "${codeset}"
	break
      fi
    done
  done <<<$(locale -av)
  echo "};"
) > lc_def_codesets.h