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#!/usr/bin/perl
# Copyright (C) 2011-2012 Free Software Foundation, Inc.
# Copyright (C) 2013 Nikos Mavrogiannopoulos
#
# This file is part of GnuTLS.
#
# This file 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 3 of the License, or
# (at your option) any later version.
#
# This file 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 file; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# given a header file in stdin it will print all functions
my $line;
my $func_name;
my $prototype;
$state = 0;
# 0: scanning
# 1: comment
# 2: struct||enum||typedef func
# 3: function
# 4: inline function { }
sub function_print {
my $prototype = shift @_;
if ($prototype =~ m/^\s*\w\s+[A-Za-z0-9_]+[\s\*]+([A-Za-z0-9_]+)\s*\(.*/) {
$func_name = $1;
} elsif ($prototype =~ m/^\s*[A-Za-z0-9_]+[\s\*]+([A-Za-z0-9_]+)\s*\([^\)]+/) {
$func_name = $1;
} elsif ($prototype =~ m/^\s*\w+\s+\w+[\s\*]+([A-Za-z0-9_]+)\s*\([^\)]+/) {
$func_name = $1;
} elsif ($prototype =~ m/^[\s\*]*([A-Za-z0-9_]+)\s*\([^\)]+/) {
$func_name = $1;
} elsif ($prototype =~ m/^[\s\*]*[A-Za-z0-9_]+\s+([A-Za-z0-9_]+)/) {
$func_name = $1;
}
#print STDERR "function: $prototype\n";
if ($func_name ne '' && ($func_name =~ m/^gnutls_.*/ || $func_name =~ m/dane_.*/ || $func_name =~ m/xssl_.*/)) {
print $func_name . "\n";
}
return;
}
while ($line=<STDIN>) {
next if ($line eq '');
# print STDERR "line($state): $line";
#skip comments
if ($state == 0) {
if ($line =~ m/^\s*\/\*/) {
next if ($line =~ m/\*\//);
$state = 1;
next;
} elsif ($line =~ m/^\s*typedef\s+enum/ || $line =~ m/^\s*enum/ ||
$line =~ m/^\s*struct/ || $line =~ m/^\s*typedef\s+struct/ ||
$line =~ m/^\s*typedef/) {
next if ($line =~ m/;/);
if ($line =~ m/\{/) {
$state = 2;
} else {
$state = 6;
}
next;
} elsif ($line =~ m/^\s*extern\s+"C"/) {
next;
} elsif ($line =~ m/^\s*\{/) {
next if ($line =~ m/\}/);
$state = 4;
next;
} elsif ($line =~ m/^\s*#define/) {
next if ($line !~ m/\\$/);
$state = 5;
next;
} elsif ($line !~ m/^\s*extern/ && $line !~ m/^\s*typedef/ && $line !~ m/doc-skip/ && $line =~ m/^\s*\w/) {
$state = 3;
$prototype = "$line";
$func_name = '';
if ($line =~ m/;/) {
function_print($prototype);
$state = 0;
next;
}
}
} elsif ($state == 1) { # comment
if ($line =~ m/\*\//) {
$state = 0;
next;
}
} elsif ($state == 2) { #struct||enum||typedef struct
if ($line =~ m/\}/) {
$state = 0;
next;
}
} elsif ($state == 3) { #possible function
$prototype .= $line;
if ($line =~ m/;/) {
$state = 0;
function_print($prototype);
}
} elsif ($state == 4) { #inline function to be skipped
if ($line =~ m/\}/) {
$state = 0;
next;
}
} elsif ($state == 5) { # define
if ($line !~ m/\\$/) {
$state = 0;
next;
}
} elsif ($state == 6) { #typedef (not struct)
if ($line =~ m/;/) {
$state = 0;
next;
}
}
}
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