Sweden-Number/tools/winapi_check/winapi_parser.pm

257 lines
7.3 KiB
Perl
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package winapi_parser;
use strict;
sub parse_c_file {
my $options = shift;
my $output = shift;
my $file = shift;
my $function_found_callback = shift;
my $preprocessor_found_callback = shift;
my $documentation;
my $return_type;
my $calling_convention;
my $function = "";
my $arguments;
my $statements;
my $function_begin = sub {
$documentation = shift;
$return_type= shift;
$calling_convention = shift;
$function = shift;
$arguments = shift;
$statements = "";
};
my $function_end = sub {
&$function_found_callback($documentation,$return_type,$calling_convention,$function,$arguments,$statements);
$function = "";
};
my @comments = ();
my $level = 0;
my $again = 0;
my $lookahead = 0;
my $lookahead_count = 0;
print STDERR "Processing file '$file' ... " if $options->verbose;
open(IN, "< $file") || die "<internal>: $file: $!\n";
$/ = "\n";
while($again || defined(my $line = <IN>)) {
if(!$again) {
chomp $line;
if($lookahead) {
$lookahead = 0;
$_ .= "\n" . $line;
} else {
$_ = $line;
$lookahead_count = 0;
}
$lookahead_count++;
print "$level: $line\n" if $options->debug >= 2;
} else {
$lookahead_count = 0;
$again = 0;
}
# Merge conflicts in file?
if(/^(<<<<<<<|=======|>>>>>>>)/) {
$output->write("$file: merge conflicts in file\n");
last;
}
# remove comments
if(s/^(.*?)(\/\*.*?\*\/)(.*)$/$1 $3/s) { push @comments, $2; $again = 1; next };
if(/^(.*?)\/\*/s) {
$lookahead = 1;
next;
}
# remove empty rows
if(/^\s*$/) { next; }
# remove preprocessor directives
if(s/^\s*\#/\#/m) {
if(/^\\#.*?\\$/m) {
$lookahead = 1;
next;
} elsif(s/^\#\s*(.*?)(\s+(.*?))?\s*$//m) {
if(defined($3)) {
&$preprocessor_found_callback($1, $3);
} else {
&$preprocessor_found_callback($1, "");
}
$again = 1;
next;
}
}
my $documentation;
{
my $n = $#comments;
while($n >= 0 && $comments[$n] !~ /\/\*\*/) { $n-- }
if(defined($comments[$n]) && $n >= 0) {
$documentation = $comments[$n];
} else {
$documentation = "";
}
}
if($level > 0)
{
my $line;
s/^([^\{\}]*)//s;
$line = $1;
if(/^(\{)/) {
$_ = $'; $again = 1;
$line .= $1;
print "+1: $_\n" if $options->debug >= 2;
$level++;
} elsif(/^(\})/) {
$_ = $'; $again = 1;
$line .= $1 if $level > 1;
print "-1: $_\n" if $options->debug >= 2;
$level--;
}
if($line !~ /^\s*$/) {
$statements .= "$line\n";
}
if($function && $level == 0) {
&$function_end;
}
next;
} elsif(/((struct\s+|union\s+|enum\s+)?\w+((\s*\*)+\s*|\s+))((__cdecl|__stdcall|VFWAPIV|VFWAPI|WINAPIV|WINAPI)\s+)?(\w+(\(\w+\))?)\s*\(([^\)]*)\)\s*(\{|\;)/s) {
$_ = $'; $again = 1;
if($10 eq ";") {
next;
} elsif($10 eq "{") {
$level++;
}
my $return_type = $1;
my $calling_convention = $6;
my $name = $7;
my $arguments = $9;
if(!defined($calling_convention)) {
$calling_convention = "";
}
$return_type =~ s/\s*$//;
$return_type =~ s/\s*\*\s*/*/g;
$return_type =~ s/(\*+)/ $1/g;
$name =~ s/^REGS_FUNC\((.*?)\)/$1/;
$arguments =~ y/\t\n/ /;
$arguments =~ s/^\s*(.*?)\s*$/$1/;
if($arguments eq "") { $arguments = "void" }
my @arguments = split(/,/, $arguments);
foreach my $n (0..$#arguments) {
my $argument = $arguments[$n];
$argument =~ s/^\s*(.*?)\s*$/$1/;
#print " " . ($n + 1) . ": '$argument'\n";
$argument =~ s/^(IN OUT(?=\s)|IN(?=\s)|OUT(?=\s)|\s*)\s*//;
$argument =~ s/^(const(?=\s)|\s*)\s*//;
if($argument =~ /^...$/) {
$argument = "...";
} elsif($argument =~ /^((struct\s+|union\s+|enum\s+)?\w+)\s*((\*\s*?)*)\s*/) {
$argument = "$1";
if($3 ne "") {
$argument .= " $3";
}
} else {
die "$file: $.: syntax error: '$argument'\n";
}
$arguments[$n] = $argument;
#print " " . ($n + 1) . ": '" . $arguments[$n] . "'\n";
}
if($#arguments == 0 && $arguments[0] =~ /^void$/i) { $#arguments = -1; }
if($options->debug) {
print "$file: $return_type $calling_convention $name(" . join(",", @arguments) . ")\n";
}
&$function_begin($documentation,$return_type,$calling_convention,$name,\@arguments);
} elsif(/DC_(GET_X_Y|GET_VAL_16)\s*\(\s*(.*?)\s*,\s*(.*?)\s*,\s*(.*?)\s*\)/s) {
$_ = $'; $again = 1;
my @arguments = ("HDC16");
&$function_begin($documentation,$2, "WINAPI", $3, \@arguments);
&$function_end;
} elsif(/DC_(GET_VAL_32)\s*\(\s*(.*?)\s*,\s*(.*?)\s*,.*?\)/s) {
$_ = $'; $again = 1;
my @arguments = ("HDC");
&$function_begin($documentation,$2, "WINAPI", $3, \@arguments);
&$function_end;
} elsif(/DC_(GET_VAL_EX)\s*\(\s*(.*?)\s*,\s*(.*?)\s*,\s*(.*?)\s*,\s*(.*?)\s*\)/s) {
$_ = $'; $again = 1;
my @arguments16 = ("HDC16", "LP" . $5 . "16");
my @arguments32 = ("HDC", "LP" . $5);
&$function_begin($documentation,"BOOL16", "WINAPI", $2 . "16", \@arguments16);
&$function_end;
&$function_begin($documentation,"BOOL", "WINAPI", $2, \@arguments32);
&$function_end;
} elsif(/DC_(SET_MODE)\s*\(\s*(.*?)\s*,\s*(.*?)\s*,\s*(.*?)\s*,\s*(.*?)\s*\)/s) {
$_ = $'; $again = 1;
my @arguments16 = ("HDC16", "INT16");
my @arguments32 = ("HDC", "INT");
&$function_begin($documentation,"INT16", "WINAPI", $2 . "16", \@arguments16);
&$function_end;
&$function_begin($documentation,"INT", "WINAPI", $2, \@arguments32);
&$function_end;
} elsif(/WAVEIN_SHORTCUT_0\s*\(\s*(.*?)\s*,\s*(.*?)\s*\)/s) {
$_ = $'; $again = 1;
my @arguments16 = ("HWAVEIN16");
my @arguments32 = ("HWAVEIN");
&$function_begin($documentation,"UINT16", "WINAPI", "waveIn" . $1 . "16", \@arguments16);
&$function_end;
&$function_begin($documentation,"UINT", "WINAPI", "waveIn" . $1, \@arguments32);
&$function_end;
} elsif(/WAVEOUT_SHORTCUT_0\s*\(\s*(.*?)\s*,\s*(.*?)\s*\)/s) {
$_ = $'; $again = 1;
my @arguments16 = ("HWAVEOUT16");
my @arguments32 = ("HWAVEOUT");
&$function_begin($documentation,"UINT16", "WINAPI", "waveOut" . $1 . "16", \@arguments16);
&$function_end;
&$function_begin($documentation,"UINT", "WINAPI", "waveOut" . $1, \@arguments32);
&$function_end;
} elsif(/WAVEOUT_SHORTCUT_(1|2)\s*\(\s*(.*?)\s*,\s*(.*?)\s*,\s*(.*?)\s*\)/s) {
$_ = $'; $again = 1;
if($1 eq "1") {
my @arguments16 = ("HWAVEOUT16", $4);
my @arguments32 = ("HWAVEOUT", $4);
&$function_begin($documentation,"UINT16", "WINAPI", "waveOut" . $2 . "16", \@arguments16);
&$function_end;
&$function_begin($documentation,"UINT", "WINAPI", "waveOut" . $2, \@arguments32);
&$function_end;
} elsif($1 eq 2) {
my @arguments16 = ("UINT16", $4);
my @arguments32 = ("UINT", $4);
&$function_begin($documentation,"UINT16", "WINAPI", "waveOut". $2 . "16", \@arguments16);
&$function_end;
&$function_begin($documentation,"UINT", "WINAPI", "waveOut" . $2, \@arguments32);
&$function_end;
}
} elsif(/;/s) {
$_ = $'; $again = 1;
} elsif(/\{/s) {
$_ = $'; $again = 1;
print "+1: $_\n" if $options->debug >= 2;
$level++;
} else {
$lookahead = 1;
}
}
close(IN);
print STDERR "done\n" if $options->verbose;
$output->write("$file: not at toplevel at end of file\n") unless $level == 0;
}
1;