#!/bin/sh
set -eu

if ! [ -x runtime/doc/doctags ]; then
  printf 'Must build doctags first\n' >&2
  exit 1
fi

ORIG_DIR=$(pwd)
DOC_DIR=$(mktemp -d)
trap 'rm -r $DOC_DIR' EXIT

cp "$@" "$DOC_DIR"/
cd "$DOC_DIR"
"$ORIG_DIR"/runtime/doc/doctags *.txt | LANG=C LC_ALL=C sort