246 lines
6.5 KiB
Perl
246 lines
6.5 KiB
Perl
#!/usr/bin/env perl
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#***************************************************************************
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at https://curl.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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# SPDX-License-Identifier: curl
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#
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###########################################################################
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#
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# This script grew out of help from Przemyslaw Iskra and Balint Szilakszi
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# a late evening in the #curl IRC channel.
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#
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use strict;
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use warnings;
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use vars qw($Cpreprocessor);
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#
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# configurehelp perl module is generated by configure script
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#
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my $rc = eval {
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require configurehelp;
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configurehelp->import(qw(
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$Cpreprocessor
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));
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1;
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};
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# Set default values if configure has not generated a configurehelp.pm file.
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# This is the case with cmake.
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if (!$rc) {
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$Cpreprocessor = 'cpp';
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}
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# we may get the dir root pointed out
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my $root=$ARGV[0] || ".";
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# need an include directory when building out-of-tree
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my $i = ($ARGV[1]) ? "-I$ARGV[1] " : '';
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my $verbose=0;
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my $summary=0;
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my $misses=0;
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my @manrefs;
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my @syms;
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my %doc;
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my %rem;
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# scanenum runs the preprocessor on curl.h so it will process all enums
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# included by it, which *should* be all headers
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sub scanenum {
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my ($file) = @_;
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open my $h_in, "-|", "$Cpreprocessor $i$file" || die "Cannot preprocess $file";
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while ( <$h_in> ) {
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if ( /enum\s+(\S+\s+)?{/ .. /}/ ) {
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s/^\s+//;
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next unless /^CURL/;
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chomp;
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s/[,\s].*//;
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push @syms, $_;
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}
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}
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close $h_in || die "Error preprocessing $file";
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}
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sub scanheader {
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my ($f)=@_;
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open my $h, "<", "$f";
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while(<$h>) {
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if (/^#define ((LIB|)CURL[A-Za-z0-9_]*)/) {
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push @syms, $1;
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}
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}
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close $h;
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}
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sub scanallheaders {
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my $d = "$root/include/curl";
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opendir(my $dh, $d) ||
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die "Can't opendir: $!";
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my @headers = grep { /.h\z/ } readdir($dh);
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closedir $dh;
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foreach my $h (@headers) {
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scanenum("$d/$h");
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scanheader("$d/$h");
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}
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}
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sub checkmanpage {
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my ($m) = @_;
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open(my $mh, "<", "$m");
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my $line = 1;
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while(<$mh>) {
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# strip off formatting
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$_ =~ s/\\f[BPRI]//;
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# detect global-looking 'CURL[BLABLA]_*' symbols
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while(s/\W(CURL(AUTH|E|H|MOPT|OPT|SHOPT|UE|M|SSH|SSLBACKEND|HEADER|FORM|FTP|PIPE|MIMEOPT|GSSAPI|ALTSVC|PROTO|PROXY|UPART|USESSL|_READFUNC|_WRITEFUNC|_CSELECT|_FORMADD|_IPRESOLVE|_REDIR|_RTSPREQ|_TIMECOND|_VERSION)_[a-zA-Z0-9_]+)//) {
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my $s = $1;
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# skip two "special" ones
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if($s !~ /^(CURLE_OBSOLETE|CURLOPT_TEMPLATE)/) {
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push @manrefs, "$1:$m:$line";
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}
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}
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$line++;
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}
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close($mh);
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}
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sub scanman3dir {
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my ($d) = @_;
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opendir(my $dh, $d) ||
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die "Can't opendir: $!";
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my @mans = grep { /.3\z/ } readdir($dh);
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closedir $dh;
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for my $m (@mans) {
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checkmanpage("$d/$m");
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}
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}
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scanallheaders();
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scanman3dir("$root/docs/libcurl");
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scanman3dir("$root/docs/libcurl/opts");
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open my $s, "<", "$root/docs/libcurl/symbols-in-versions";
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while(<$s>) {
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if(/(^[^ \n]+) +(.*)/) {
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my ($sym, $rest)=($1, $2);
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if($doc{$sym}) {
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print "Detected duplicate symbol: $sym\n";
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$misses++;
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next;
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}
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$doc{$sym}=$sym;
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my @a=split(/ +/, $rest);
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if($a[2]) {
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# this symbol is documented to have been present the last time
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# in this release
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$rem{$sym}=$a[2];
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}
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}
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}
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close $s;
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my $ignored=0;
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for my $e (sort @syms) {
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# OBSOLETE - names that are just placeholders for a position where we
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# previously had a name, that is now removed. The OBSOLETE names should
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# never be used for anything.
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#
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# CURL_EXTERN - is a define used for libcurl functions that are external,
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# public. No app or other code should ever use it.
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#
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# CURLINC_ - defines for header dual-include prevention, ignore those.
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#
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# CURL_TEMP_ - are defined and *undefined* again within the file
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#
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# *_LAST and *_LASTENTRY are just prefix for the placeholders used for the
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# last entry in many enum series.
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#
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if($e =~ /(OBSOLETE|^CURL_EXTERN|^CURLINC_|_LAST\z|_LASTENTRY\z|^CURL_TEMP_)/) {
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$ignored++;
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next;
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}
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if($doc{$e}) {
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if($verbose) {
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print $e."\n";
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}
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$doc{$e}="used";
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next;
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}
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else {
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print $e."\n";
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$misses++;
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}
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}
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#
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# now scan through all symbols that were present in the symbols-in-versions
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# but not in the headers
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#
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# If the symbols were marked 'removed' in symbols-in-versions we don't output
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# anything about it since that is perfectly fine.
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#
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my $anyremoved;
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for my $e (sort keys %doc) {
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if(($doc{$e} ne "used") && !$rem{$e}) {
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if(!$anyremoved++) {
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print "Missing symbols mentioned in symbols-in-versions\n";
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print "Add them to a header, or mark them as removed.\n";
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}
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print "$e\n";
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$misses++;
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}
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}
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my %warned;
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for my $r (@manrefs) {
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if($r =~ /^([^:]+):(.*)/) {
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my ($sym, $file)=($1, $2);
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if(!$doc{$sym} && !$warned{$sym, $file}) {
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print "$file: $sym is not a public symbol\n";
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$warned{$sym, $file} = 1;
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}
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}
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}
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if($summary) {
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print "Summary:\n";
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printf "%d symbols in headers (out of which %d are ignored)\n", scalar(@syms),
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$ignored;
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printf "%d symbols in headers are interesting\n",
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scalar(@syms)- $ignored;
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printf "%d symbols are listed in symbols-in-versions\n (out of which %d are listed as removed)\n", scalar(keys %doc), scalar(keys %rem);
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printf "%d symbols in symbols-in-versions should match the ones in headers\n", scalar(keys %doc) - scalar(keys %rem);
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}
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if($misses) {
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exit 0; # there are stuff to attend to!
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}
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else {
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print "OK\n";
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}
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