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# mkheader.awk
# Copyright (C) 2003, 2004 g10 Code GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
#
# As a special exception, g10 Code GmbH gives unlimited permission to
# copy, distribute and modify the C source files that are the output
# of mkheader.awk. You need not follow the terms of the GNU General
# Public License when using or distributing such scripts, even though
# portions of the text of mkheader.awk appear in them. The GNU
# General Public License (GPL) does govern all other use of the material
# that constitutes the mkheader.awk program.
#
# Certain portions of the mkheader.awk source text are designed to be
# copied (in certain cases, depending on the input) into the output of
# mkheader.awk. We call these the "data" portions. The rest of the
# mkheader.awk source text consists of comments plus executable code
# that decides which of the data portions to output in any given case.
# We call these comments and executable code the "non-data" portions.
# mkheader.h never copies any of the non-data portions into its output.
#
# This special exception to the GPL applies to versions of mkheader.awk
# released by g10 Code GmbH. When you make and distribute a modified version
# of mkheader.awk, you may extend this special exception to the GPL to
# apply to your modified version as well, *unless* your modified version
# has the potential to copy into its output some of the text that was the
# non-data portion of the version that you started with. (In other words,
# unless your change moves or copies text from the non-data portions to the
# data portions.) If your modification has such potential, you must delete
# any notice of this special exception to the GPL from your modified version.
# This script processes gpg-error.h.in in an awful way.
# Its input is, one after another, the content of the err-sources.h.in file,
# the err-codes.h.in file, the errnos.in file, and then gpg-error.h.in.
# There is nothing fancy about this.
#
# An alternative would be to use getline to get the content of the first three files,
# but then we need to pre-process gpg-error.h.in with configure to get
# at the full path of the files in @srcdir@.
BEGIN {
FS = "[\t]+";
# sources_nr holds the number of error sources.
sources_nr = 0;
# codes_nr holds the number of error codes.
codes_nr = 0;
# errnos_nr holds the number of system errors.
errnos_nr = 0;
# These variables walk us through our input.
sources_header = 1;
sources_body = 0;
between_sources_and_codes = 0;
codes_body = 0;
between_codes_and_errnos = 0;
errnos_body = 0;
gpg_error_h = 0;
print "/* Output of mkheader.awk. DO NOT EDIT. */";
print "";
}
sources_header {
if ($1 ~ /^[0123456789]+$/)
{
sources_header = 0;
sources_body = 1;
}
}
sources_body {
sub (/\#.+/, "");
sub (/[ ]+$/, ""); # Strip trailing space and tab characters.
if (/^$/)
next;
if ($1 == "")
{
sources_body = 0;
between_sources_and_codes = 1;
}
else
{
# Remember the error source number and symbol of each error source.
sources_idx[sources_nr] = $1;
sources_sym[sources_nr] = $2;
sources_nr++;
}
}
between_sources_and_codes {
if ($1 ~ /^[0123456789]+$/)
{
between_sources_and_codes = 0;
codes_body = 1;
}
}
codes_body {
sub (/\#.+/, "");
sub (/[ ]+$/, ""); # Strip trailing space and tab characters.
if (/^$/)
next;
if ($1 == "")
{
codes_body = 0;
between_codes_and_errnos = 1;
}
else
{
# Remember the error code number and symbol of each error source.
codes_idx[codes_nr] = $1;
codes_sym[codes_nr] = $2;
codes_nr++;
}
}
between_codes_and_errnos {
if ($1 ~ /^[0-9]/)
{
between_codes_and_errnos = 0;
errnos_body = 1;
}
}
errnos_body {
sub (/\#.+/, "");
sub (/[ ]+$/, ""); # Strip trailing space and tab characters.
if (/^$/)
next;
if ($1 !~ /^[0-9]/)
{
# Note that this assumes that gpg-error.h.in doesn't start with a digit.
errnos_body = 0;
gpg_error_h = 1;
}
else
{
errnos_idx[errnos_nr] = "GPG_ERR_SYSTEM_ERROR | " $1;
errnos_sym[errnos_nr] = "GPG_ERR_" $2;
errnos_nr++;
}
}
gpg_error_h {
if ($0 ~ /^@include err-sources/)
{
for (i = 0; i < sources_nr; i++)
{
print " " sources_sym[i] " = " sources_idx[i] ",";
# print "#define " sources_sym[i] " (" sources_idx[i] ")";
}
}
else if ($0 ~ /^@include err-codes/)
{
for (i = 0; i < codes_nr; i++)
{
print " " codes_sym[i] " = " codes_idx[i] ",";
# print "#define " codes_sym[i] " (" codes_idx[i] ")";
}
}
else if ($0 ~ /^@include errnos/)
{
for (i = 0; i < errnos_nr; i++)
{
print " " errnos_sym[i] " = " errnos_idx[i] ",";
# print "#define " errnos_sym[i] " (" errnos_idx[i] ")";
}
}
else
print;
}
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