#!/bin/sh

server_core_internal_file="${1:-index.html}"

echo "Content-Type: text/html"
echo ""

server_core_internal_built_script=""
server_core_internal_unit_separator="$(printf '\x1F')"
server_core_internal_i=1
while IFS= read -r server_core_internal_line; do
  server_core_internal_line=$(echo "$server_core_internal_line" | sed -E 's/<!--%=[ ]*\$([^ ]*)[ ]*%-->/<!--% echo -n "\$\1" %-->/g; s/<!--%=[ ]*(.*[^ ])[ ]*%-->/<!--% echo -n "$(\1)" %-->/g')
  if [ -n "$(echo "$server_core_internal_line" | grep '^<!--%')" ]; then
    if [ "$(expr "$server_core_internal_i" % 2)" -eq 0 ]; then
      server_core_internal_i=$(expr "$server_core_internal_i" + 1)
    fi
  fi
  server_core_internal_parts=$(echo "$server_core_internal_line" | sed "s/<\!--%[ ]*/$server_core_internal_unit_separator/g; s/[ ]*%-->/$server_core_internal_unit_separator/g")
  server_core_internal_need_newline=0

  if [ -z "$(echo "$server_core_internal_parts" | grep "$server_core_internal_unit_separator")" ]; then
    server_core_internal_need_newline=1
  fi

  OLD_IFS="$IFS"
  IFS="$server_core_internal_unit_separator"
  for server_core_internal_part in $server_core_internal_parts; do
    if [ "$(expr "$server_core_internal_i" % 2)" -eq 0 ]; then
      server_core_internal_built_script=$(printf '%s\n%s\n' "$server_core_internal_built_script" "$server_core_internal_part")
      server_core_internal_need_newline=0
    else
      if [ -n "$(echo "$server_core_internal_part" | sed 's/^[[:blank:]]*//;s/[[:blank:]]*$//')" ]; then
        server_core_internal_built_script=$(printf '%s\n%s\n' "$server_core_internal_built_script" "printf '%s' '$server_core_internal_part'")
        if [ "$server_core_internal_need_newline" -eq 0 ]; then
          server_core_internal_need_newline=1
        fi
      fi
    fi
    server_core_internal_i=$(expr "$server_core_internal_i" + 1)
  done

  if [ -n "$(echo "$server_core_internal_line" | grep '%-->$')" ]; then
    server_core_internal_i=$(expr "$server_core_internal_i" + 1)
  fi

  if [ -n "$(echo "$server_core_internal_line" | grep '<!--%$')" ]; then
    server_core_internal_i=$(expr "$server_core_internal_i" + 1)
  fi



  if [ "$server_core_internal_need_newline" -eq 1 ]; then
    server_core_internal_built_script=$(printf '%s\n%s\n' "$server_core_internal_built_script" "printf '%s\n' ''")
  fi

  server_core_internal_i=$(expr "$server_core_internal_i" + 1)
  IFS="$OLD_IFS"
done < "$server_core_internal_file"

eval "$server_core_internal_built_script"