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mirror of https://gitlab.isc.org/isc-projects/bind9.git synced 2025-04-18 09:44:09 +03:00
bind9/doc/doxygen/doxygen-input-filter.in
Ondřej Surý 58bd26b6cf Update the copyright information in all files in the repository
This commit converts the license handling to adhere to the REUSE
specification.  It specifically:

1. Adds used licnses to LICENSES/ directory

2. Add "isc" template for adding the copyright boilerplate

3. Changes all source files to include copyright and SPDX license
   header, this includes all the C sources, documentation, zone files,
   configuration files.  There are notes in the doc/dev/copyrights file
   on how to add correct headers to the new files.

4. Handle the rest that can't be modified via .reuse/dep5 file.  The
   binary (or otherwise unmodifiable) files could have license places
   next to them in <foo>.license file, but this would lead to cluttered
   repository and most of the files handled in the .reuse/dep5 file are
   system test files.
2022-01-11 09:05:02 +01:00

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#!@PERL@ -w
#
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
#
# SPDX-License-Identifier: MPL-2.0
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, you can obtain one at https://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
# Input filter for feeding our source code into Doxygen.
# Slurp whole file at once
undef $/;
$_ = <>;
# It turns out that there are a lot of cases where we'd really like to
# use what Doxygen calls "brief" documentation in a comment. Doxygen
# has a shorthand way of doing this -- if one is writing C++. ISC
# coding conventions require C, not C++, so we have to do it the
# verbose way, which makes a lot of comments too long to fit on a
# single line without violating another ISC coding standard (80
# character line limit).
#
# So we use Doxygen's input filter mechanism to define our own
# brief comment convention:
#
# /*% foo */
#
# expands to
#
# /*! \brief foo */
#
# and
#
# /*%< foo */
#
# expands to
#
# /*!< \brief foo */
#
s{/\*%(<?)}{/*!$1 \\brief }g;
# Doxygen appears to strip trailing newlines when reading files
# directly but not when reading from an input filter. Go figure.
# Future versions of Doxygen might change this, be warned.
#
s{\n+\z}{};
# Done, send the result to Doxygen.
#
print;