Retro68/binutils/libiberty/gather-docs

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#!/usr/bin/perl
# -*- perl -*-
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# Copyright (C) 2001-2018 Free Software Foundation, Inc.
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#
# This file is part of the libiberty library.
# Libiberty is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# Libiberty 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
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with libiberty; see the file COPYING.LIB. If not,
# write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
# Boston, MA 02110-1301, USA.
#
# Originally written by DJ Delorie <dj@redhat.com>
# This program looks for texinfo snippets in source files and other
# files, and builds per-category files with entries sorted in
# alphabetical order.
# The syntax it looks for is lines starting with '@def' in *.c and
# other files (see TEXIFILES in Makefile.in). Entries are terminated
# at the next @def* (which begins a new entry) or, for C files, a line
# that begins with '*/' without leading spaces (this assumes that the
# texinfo snippet is within a C-style /* */ comment).
#
if ($ARGV[0] eq "-v") {
$verbose = 1;
shift;
}
$srcdir = shift;
$outfile = shift;
if ($outfile !~ /\S/ || ! -f "$srcdir/Makefile.in" ) {
print STDERR "Usage: gather-docs [-v] srcdir outfile.txi [files with snippets in them ...]\n";
exit 1;
}
$errors = 0;
for $in (@ARGV) {
if (!open(IN, "$srcdir/$in")) {
print STDERR "Cannot open $srcdir/$in for reading: $!\n";
$errors ++;
} else {
$first = 1;
$pertinent = 0;
$man_mode = 0;
$line = 0;
while (<IN>) {
$line ++;
$pertinent = 1 if /^\@def[a-z]*[a-wyz] /;
$pertinent = 0 if /^\*\//;
next unless $pertinent;
if (/^\@def[a-z]*[a-wyz] /) {
($name) = m/[^\(]* ([^\( \t\r\n\@]+) *(\(|\@?$)/;
$name =~ s/[ ]*\@?$//;
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$key = $name;
$key =~ tr/A-Z/a-z/;
$key =~ s/[^a-z0-9]+/ /g;
$name{$key} = $node;
$lines{$key} = '';
$src_file{$key} = $in;
$src_line{$key} = $line;
print "\nReading $in :" if $verbose && $first;
$first = 0;
print " $name" if $verbose;
$node_lines{$key} .= $_;
} else {
$node_lines{$key} .= $_;
}
$pertinent = 0 if /^\@end def/;
}
close (IN);
}
}
print "\n" if $verbose;
exit $errors if $errors;
if (!open (OUT, "> $outfile")) {
print STDERR "Cannot open $outfile for writing: $!\n";
$errors ++;
next;
}
print "Writing $outfile\n" if $verbose;
print OUT "\@c Automatically generated from *.c and others (the comments before\n";
print OUT "\@c each entry tell you which file and where in that file). DO NOT EDIT!\n";
print OUT "\@c Edit the *.c files, configure with --enable-maintainer-mode,\n";
print OUT "\@c run 'make stamp-functions' and gather-docs will build a new copy.\n\n";
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for $key (sort keys %name) {
print OUT "\@c $src_file{$key}:$src_line{$key}\n";
print OUT $node_lines{$key};
print OUT "\n";
}
if (! print OUT "\n") {
print STDERR "Disk full writing $srcdir/$cat.texi\n";
$errors ++;
}
close (OUT);
exit $errors;