#!/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
  locale -av | \
  awk '/^locale:/{
		   if ( index ($2, "_") == 0 ) next # No aliases
		   if ( index ($2, ".") > 0 ) next # No explicit codesets
		   locale=$2;
		 }
       /codeset/ {
		   if ( length (locale) == 0 ) next
		   codeset = gensub (/BIG5.*/, "BIG5", 1, $3);
		   printf "  { \"%s\", \"%s\" },\n", locale, codeset;
		   locale = "";
		 }'
  echo "};"
) > lc_def_codesets.h