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|
#!/usr/bin/perl
use strict;
use warnings;
if ($ARGV[0] eq '--help') {
print << "EOF";
Usage:
$0 file.h file.c
Removes documentation attached to function declarations in file.h and adds them
to function definitions found in file.c.
$0 file.c
Moves documentation attached to function declaration present in the same file as
the definition.
EOF
exit 0;
}
my $hfile = shift @ARGV;
my @cfiles = @ARGV;
my %docs = ();
my $F;
sub write_lines {
my $file = shift;
my @lines = @_;
my $F;
open $F, '>', $file;
print $F (join "", @lines);
close $F;
}
if (@cfiles) {
open $F, '<', $hfile
or die "Failed to open $hfile.";
my @hlines = ();
my $lastdoc = '';
while (<$F>) {
if (/^\/\/\/?/) {
$lastdoc .= $_;
} elsif (/^\S.*?(\w+)\(.*(?:,|\);?|FUNC_ATTR_\w+;?)$/) {
die "Documentation for $1 was already defined" if (defined $docs{$1});
if ($lastdoc ne '') {
$docs{$1} = $lastdoc;
$lastdoc = '';
}
push @hlines, $_;
} elsif ($lastdoc ne '') {
push @hlines, $lastdoc;
$lastdoc = '';
push @hlines, $_;
} else {
push @hlines, $_;
}
}
close $F;
my %clines_hash = ();
for my $cfile (@cfiles) {
open $F, '<', $cfile
or die "Failed to open $cfile.";
my @clines = ();
while (<$F>) {
if (/^\S.*?(\w+)\(.*[,)]$/ and defined $docs{$1}) {
push @clines, $docs{$1};
delete $docs{$1};
} elsif (/^(?!static\s)\S.*?(\w+)\(.*[,)]$/ and not defined $docs{$1}) {
print STDERR "Documentation not defined for $1\n";
}
push @clines, $_;
}
close $F;
$clines_hash{$cfile} = \@clines;
}
while (my ($func, $value) = each %docs) {
die "Function not found: $func\n";
}
write_lines($hfile, @hlines);
while (my ($cfile, $clines) = each %clines_hash) {
write_lines($cfile, @$clines);
}
} else {
open $F, '<', $hfile;
my @lines;
my $lastdoc = '';
my $defstart = '';
my $funcname;
sub clear_lastdoc {
if ($lastdoc ne '') {
push @lines, $lastdoc;
$lastdoc = '';
}
}
sub record_lastdoc {
my $funcname = shift;
if ($lastdoc ne '') {
$docs{$funcname} = $lastdoc;
$lastdoc = '';
}
}
sub add_doc {
my $funcname = shift;
if (defined $docs{$funcname}) {
push @lines, $docs{$funcname};
delete $docs{$funcname};
}
}
sub clear_defstart {
push @lines, $defstart;
$defstart = '';
}
while (<$F>) {
if (/\/\*/ .. /\*\// and not /\/\*.*?\*\//) {
push @lines, $_;
} elsif (/^\/\/\/?/) {
$lastdoc .= $_;
} elsif (/^\S.*?(\w+)\(.*(?:,|(\);?))$/) {
if (not $2) {
$defstart .= $_;
$funcname = $1;
} elsif ($2 eq ');') {
record_lastdoc $1;
push @lines, $_;
} elsif ($2 eq ')') {
clear_lastdoc;
add_doc $1;
push @lines, $_;
}
} elsif ($defstart ne '') {
$defstart .= $_;
if (/[{}]/) {
clear_lastdoc;
clear_defstart;
} elsif (/\);$/) {
record_lastdoc $funcname;
clear_defstart;
} elsif (/\)$/) {
clear_lastdoc;
add_doc $funcname;
clear_defstart;
}
} else {
clear_lastdoc;
push @lines, $_;
}
}
close $F;
while (my ($func, $value) = each %docs) {
die "Function not found: $func\n";
}
write_lines($hfile, @lines);
}
|
