wine/tools/winapi/c_parser.pm
2002-06-01 02:55:48 +00:00

1572 lines
36 KiB
Perl

#
# Copyright 1999, 2000, 2001 Patrik Stridvall
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
package c_parser;
use strict;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK);
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw();
@EXPORT_OK = qw();
use options qw($options);
use output qw($output);
use c_function;
########################################################################
# new
#
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
my $self = {};
bless ($self, $class);
my $file = \${$self->{FILE}};
my $found_comment = \${$self->{FOUND_COMMENT}};
my $found_declaration = \${$self->{FOUND_DECLARATION}};
my $create_function = \${$self->{CREATE_FUNCTION}};
my $found_function = \${$self->{FOUND_FUNCTION}};
my $found_function_call = \${$self->{FOUND_FUNCTION_CALL}};
my $found_line = \${$self->{FOUND_LINE}};
my $found_preprocessor = \${$self->{FOUND_PREPROCESSOR}};
my $found_statement = \${$self->{FOUND_STATEMENT}};
my $found_variable = \${$self->{FOUND_VARIABLE}};
$$file = shift;
$$found_comment = sub { return 1; };
$$found_declaration = sub { return 1; };
$$create_function = sub { return new c_function; };
$$found_function = sub { return 1; };
$$found_function_call = sub { return 1; };
$$found_line = sub { return 1; };
$$found_preprocessor = sub { return 1; };
$$found_statement = sub { return 1; };
$$found_variable = sub { return 1; };
return $self;
}
########################################################################
# set_found_comment_callback
#
sub set_found_comment_callback {
my $self = shift;
my $found_comment = \${$self->{FOUND_COMMENT}};
$$found_comment = shift;
}
########################################################################
# set_found_declaration_callback
#
sub set_found_declaration_callback {
my $self = shift;
my $found_declaration = \${$self->{FOUND_DECLARATION}};
$$found_declaration = shift;
}
########################################################################
# set_found_function_callback
#
sub set_found_function_callback {
my $self = shift;
my $found_function = \${$self->{FOUND_FUNCTION}};
$$found_function = shift;
}
########################################################################
# set_found_function_call_callback
#
sub set_found_function_call_callback {
my $self = shift;
my $found_function_call = \${$self->{FOUND_FUNCTION_CALL}};
$$found_function_call = shift;
}
########################################################################
# set_found_line_callback
#
sub set_found_line_callback {
my $self = shift;
my $found_line = \${$self->{FOUND_LINE}};
$$found_line = shift;
}
########################################################################
# set_found_preprocessor_callback
#
sub set_found_preprocessor_callback {
my $self = shift;
my $found_preprocessor = \${$self->{FOUND_PREPROCESSOR}};
$$found_preprocessor = shift;
}
########################################################################
# set_found_statement_callback
#
sub set_found_statement_callback {
my $self = shift;
my $found_statement = \${$self->{FOUND_STATEMENT}};
$$found_statement = shift;
}
########################################################################
# set_found_variable_callback
#
sub set_found_variable_callback {
my $self = shift;
my $found_variable = \${$self->{FOUND_VARIABLE}};
$$found_variable = shift;
}
########################################################################
# _parse_c
sub _parse_c {
my $self = shift;
my $pattern = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $refmatch = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
my $match;
if(s/^(?:$pattern)//s) {
$self->_update_c_position($&, \$line, \$column);
$match = $&;
} else {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
$$refmatch = $match;
return 1;
}
########################################################################
# _parse_c_error
#
# FIXME: Use caller (See man perlfunc)
sub _parse_c_error {
my $self = shift;
my $file = \${$self->{FILE}};
local $_ = shift;
my $line = shift;
my $column = shift;
my $context = shift;
my $message = shift;
$message = "parse error" if !$message;
my $current = "";
if($_) {
my @lines = split(/\n/, $_);
$current .= $lines[0] . "\n" if $lines[0];
$current .= $lines[1] . "\n" if $lines[1];
}
if($output->prefix) {
$output->write("\n");
$output->prefix("");
}
if($current) {
$output->write("$$file:$line." . ($column + 1) . ": $context: $message: \\\n$current");
} else {
$output->write("$$file:$line." . ($column + 1) . ": $context: $message\n");
}
exit 1;
}
########################################################################
# _parse_c_warning
sub _parse_c_warning {
my $self = shift;
my $line = shift;
my $column = shift;
my $message = shift;
$output->write("$line." . ($column + 1) . ": $message\n");
}
########################################################################
# _parse_c_until_one_of
sub _parse_c_until_one_of {
my $self = shift;
my $characters = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $match = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
if(!defined($match)) {
my $blackhole;
$match = \$blackhole;
}
$$match = "";
while(/^[^$characters]/s) {
my $submatch = "";
if(s/^[^$characters\n\t\'\"]*//s) {
$submatch .= $&;
}
if(s/^\'//) {
$submatch .= "\'";
while(/^./ && !s/^\'//) {
s/^([^\'\\]*)//s;
$submatch .= $1;
if(s/^\\//) {
$submatch .= "\\";
if(s/^(.)//s) {
$submatch .= $1;
if($1 eq "0") {
s/^(\d{0,3})//s;
$submatch .= $1;
}
}
}
}
$submatch .= "\'";
$$match .= $submatch;
$column += length($submatch);
} elsif(s/^\"//) {
$submatch .= "\"";
while(/^./ && !s/^\"//) {
s/^([^\"\\]*)//s;
$submatch .= $1;
if(s/^\\//) {
$submatch .= "\\";
if(s/^(.)//s) {
$submatch .= $1;
if($1 eq "0") {
s/^(\d{0,3})//s;
$submatch .= $1;
}
}
}
}
$submatch .= "\"";
$$match .= $submatch;
$column += length($submatch);
} elsif(s/^\n//) {
$submatch .= "\n";
$$match .= $submatch;
$line++;
$column = 0;
} elsif(s/^\t//) {
$submatch .= "\t";
$$match .= $submatch;
$column = $column + 8 - $column % 8;
} else {
$$match .= $submatch;
$column += length($submatch);
}
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
return 1;
}
########################################################################
# _update_c_position
sub _update_c_position {
my $self = shift;
local $_ = shift;
my $refline = shift;
my $refcolumn = shift;
my $line = $$refline;
my $column = $$refcolumn;
while($_) {
if(s/^[^\n\t\'\"]*//s) {
$column += length($&);
}
if(s/^\'//) {
$column++;
while(/^./ && !s/^\'//) {
s/^([^\'\\]*)//s;
$column += length($1);
if(s/^\\//) {
$column++;
if(s/^(.)//s) {
$column += length($1);
if($1 eq "0") {
s/^(\d{0,3})//s;
$column += length($1);
}
}
}
}
$column++;
} elsif(s/^\"//) {
$column++;
while(/^./ && !s/^\"//) {
s/^([^\"\\]*)//s;
$column += length($1);
if(s/^\\//) {
$column++;
if(s/^(.)//s) {
$column += length($1);
if($1 eq "0") {
s/^(\d{0,3})//s;
$column += length($1);
}
}
}
}
$column++;
} elsif(s/^\n//) {
$line++;
$column = 0;
} elsif(s/^\t//) {
$column = $column + 8 - $column % 8;
}
}
$$refline = $line;
$$refcolumn = $column;
}
########################################################################
# parse_c_block
sub parse_c_block {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $refstatements = shift;
my $refstatements_line = shift;
my $refstatements_column = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
my $statements;
if(s/^\{//) {
$column++;
$statements = "";
} else {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
my $statements_line = $line;
my $statements_column = $column;
my $plevel = 1;
while($plevel > 0) {
my $match;
$self->_parse_c_until_one_of("\\{\\}", \$_, \$line, \$column, \$match);
$column++;
$statements .= $match;
if(s/^\}//) {
$plevel--;
if($plevel > 0) {
$statements .= "}";
}
} elsif(s/^\{//) {
$plevel++;
$statements .= "{";
} else {
return 0;
}
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
$$refstatements = $statements;
$$refstatements_line = $statements_line;
$$refstatements_column = $statements_column;
return 1;
}
########################################################################
# parse_c_declaration
sub parse_c_declaration {
my $self = shift;
my $found_declaration = \${$self->{FOUND_DECLARATION}};
my $found_function = \${$self->{FOUND_FUNCTION}};
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
my $begin_line = $line;
my $begin_column = $column + 1;
my $end_line = $begin_line;
my $end_column = $begin_column;
$self->_update_c_position($_, \$end_line, \$end_column);
if(!&$$found_declaration($begin_line, $begin_column, $end_line, $end_column, $_)) {
return 1;
}
# Function
my $function = shift;
my $linkage = shift;
my $calling_convention = shift;
my $return_type = shift;
my $name = shift;
my @arguments = shift;
my @argument_lines = shift;
my @argument_columns = shift;
# Variable
my $type;
if(0) {
# Nothing
} elsif(s/^(?:DEFAULT|DECLARE)_DEBUG_CHANNEL\s*\(\s*(\w+)\s*\)\s*//s) { # FIXME: Wine specific kludge
$self->_update_c_position($&, \$line, \$column);
} elsif(s/^__ASM_GLOBAL_FUNC\(\s*(\w+)\s*,\s*//s) { # FIXME: Wine specific kludge
$self->_update_c_position($&, \$line, \$column);
$self->_parse_c_until_one_of("\)", \$_, \$line, \$column);
if(s/\)//) {
$column++;
}
} elsif(s/^(?:jump|strong)_alias//s) { # FIXME: GNU C library specific kludge
} elsif(s/^extern\s*\"C\"\s*{//s) {
$self->_update_c_position($&, \$line, \$column);
} elsif(s/^(?:__asm__|asm)\s*\(//) {
$self->_update_c_position($&, \$line, \$column);
} elsif($self->parse_c_typedef(\$_, \$line, \$column)) {
# Nothing
} elsif($self->parse_c_variable(\$_, \$line, \$column, \$linkage, \$type, \$name)) {
# Nothing
} elsif($self->parse_c_function(\$_, \$line, \$column, \$function)) {
if(&$$found_function($function))
{
my $statements = $function->statements;
my $statements_line = $function->statements_line;
my $statements_column = $function->statements_column;
if(defined($statements)) {
if(!$self->parse_c_statements(\$statements, \$statements_line, \$statements_column)) {
return 0;
}
}
}
} else {
$self->_parse_c_error($_, $line, $column, "declaration");
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
return 1;
}
########################################################################
# parse_c_declarations
sub parse_c_declarations {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
return 1;
}
########################################################################
# parse_c_expression
sub parse_c_expression {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $found_function_call = \${$self->{FOUND_FUNCTION_CALL}};
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
while($_) {
if(s/^(.*?)(\w+\s*\()/$2/s) {
$self->_update_c_position($1, \$line, \$column);
my $begin_line = $line;
my $begin_column = $column + 1;
my $name;
my @arguments;
my @argument_lines;
my @argument_columns;
if(!$self->parse_c_function_call(\$_, \$line, \$column, \$name, \@arguments, \@argument_lines, \@argument_columns)) {
return 0;
}
if(&$$found_function_call($begin_line, $begin_column, $line, $column, $name, \@arguments))
{
while(defined(my $argument = shift @arguments) &&
defined(my $argument_line = shift @argument_lines) &&
defined(my $argument_column = shift @argument_columns))
{
$self->parse_c_expression(\$argument, \$argument_line, \$argument_column);
}
}
} else {
$_ = "";
}
}
$self->_update_c_position($_, \$line, \$column);
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
return 1;
}
########################################################################
# parse_c_file
sub parse_c_file {
my $self = shift;
my $found_comment = \${$self->{FOUND_COMMENT}};
my $found_line = \${$self->{FOUND_LINE}};
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
my $declaration = "";
my $declaration_line = $line;
my $declaration_column = $column;
my $previous_line = 0;
my $previous_column = -1;
my $if = 0;
my $if0 = 0;
my $blevel = 1;
my $plevel = 1;
while($plevel > 0 || $blevel > 0) {
my $match;
$self->_parse_c_until_one_of("#/\\(\\)\\[\\]\\{\\};", \$_, \$line, \$column, \$match);
if($line != $previous_line) {
&$$found_line($line);
} elsif($column == $previous_column) {
$self->_parse_c_error($_, $line, $column, "file", "no progress");
} else {
# &$$found_line("$line.$column");
}
$previous_line = $line;
$previous_column = $column;
# $output->write("file: $plevel $blevel: '$match'\n");
if(!$declaration && $match =~ s/^\s+//s) {
$self->_update_c_position($&, \$declaration_line, \$declaration_column);
}
if(!$if0) {
$declaration .= $match;
} else {
my $blank_lines = 0;
local $_ = $match;
while(s/^.*?\n//) { $blank_lines++; }
if(!$declaration) {
$declaration_line = $line;
$declaration_column = $column;
} else {
$declaration .= "\n" x $blank_lines;
}
}
if(/^[\#\/]/) {
my $blank_lines = 0;
if(s/^\#\s*//) {
my $preprocessor_line = $line;
my $preprocessor_column = $column;
my $preprocessor = $&;
while(s/^(.*?)\\\s*\n//) {
$blank_lines++;
$preprocessor .= "$1\n";
}
if(s/^(.*?)(\/\*.*?\*\/)(.*?)\n//) {
$_ = "$2\n$_";
if(defined($3)) {
$preprocessor .= "$1$3";
} else {
$preprocessor .= $1;
}
} elsif(s/^(.*?)(\/[\*\/].*?)?\n//) {
if(defined($2)) {
$_ = "$2\n$_";
} else {
$blank_lines++;
}
$preprocessor .= $1;
}
if($if0 && $preprocessor =~ /^\#\s*endif/) {
if($if0 > 0) {
if($if > 0) {
$if--;
} else {
$if0--;
}
}
} elsif($preprocessor =~ /^\#\s*if/) {
if($preprocessor =~ /^\#\s*if\s*0/) {
$if0++;
} elsif($if0 > 0) {
$if++;
}
}
if(!$self->parse_c_preprocessor(\$preprocessor, \$preprocessor_line, \$preprocessor_column)) {
return 0;
}
}
if(s/^\/\*.*?\*\///s) {
&$$found_comment($line, $column + 1, $&);
local $_ = $&;
while(s/^.*?\n//) {
$blank_lines++;
}
if($_) {
$column += length($_);
}
} elsif(s/^\/\/(.*?)\n//) {
&$$found_comment($line, $column + 1, $&);
$blank_lines++;
} elsif(s/^\///) {
if(!$if0) {
$declaration .= $&;
$column++;
}
}
$line += $blank_lines;
if($blank_lines > 0) {
$column = 0;
}
if(!$declaration) {
$declaration_line = $line;
$declaration_column = $column;
} elsif($blank_lines > 0) {
$declaration .= "\n" x $blank_lines;
}
next;
}
$column++;
if($if0) {
s/^.//;
next;
}
if(s/^[\(\[]//) {
$plevel++;
$declaration .= $&;
} elsif(s/^\]//) {
$plevel--;
$declaration .= $&;
} elsif(s/^\)//) {
$plevel--;
$declaration .= $&;
if($plevel == 1 && $declaration =~ /^__ASM_GLOBAL_FUNC/) {
if(!$self->parse_c_declaration(\$declaration, \$declaration_line, \$declaration_column)) {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
$declaration = "";
$declaration_line = $line;
$declaration_column = $column;
}
} elsif(s/^\{//) {
$blevel++;
$declaration .= $&;
} elsif(s/^\}//) {
$blevel--;
$declaration .= $&;
if($declaration =~ /^typedef/s ||
$declaration =~ /^(?:const\s+|extern\s+|static\s+)*(?:struct|union)(?:\s+\w+)?\s*\{/s)
{
# Nothing
} elsif($plevel == 1 && $blevel == 1) {
if(!$self->parse_c_declaration(\$declaration, \$declaration_line, \$declaration_column)) {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
$declaration = "";
$declaration_line = $line;
$declaration_column = $column;
} elsif($column == 1) {
$self->_parse_c_error("", $line, $column, "file", "inner } ends on column 1");
}
} elsif(s/^;//) {
$declaration .= $&;
if($blevel == 1 &&
$declaration !~ /^typedef/ &&
$declaration !~ /^(?:const\s+|extern\s+|static\s+)(?:struct|union)(?:\s+\w+)?\s*\{/s &&
$declaration =~ /^(?:\w+\s*)*(?:(?:\*\s*)+|\s+)(\w+)\s*\(\s*(?:(?:\w+\s*,\s*)*\w+\s*)?\)(.*?);/s &&
$1 ne "ICOM_VTABLE" && $2) # K&R
{
$self->_parse_c_warning($line, $column, "function $1: warning: function has K&R format");
} elsif($plevel == 1 && $blevel == 1) {
$declaration =~ s/\s*;$//;
if($declaration && !$self->parse_c_declaration(\$declaration, \$declaration_line, \$declaration_column)) {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
$declaration = "";
$declaration_line = $line;
$declaration_column = $column;
}
} elsif(/^\s*$/ && $declaration =~ /^\s*$/ && $match =~ /^\s*$/) {
$plevel = 0;
$blevel = 0;
} else {
$self->_parse_c_error($_, $line, $column, "file", "'$declaration' '$match'");
}
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
return 1;
}
########################################################################
# parse_c_function
sub parse_c_function {
my $self = shift;
my $file = \${$self->{FILE}};
my $create_function = \${$self->{CREATE_FUNCTION}};
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $reffunction = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
my $linkage = "";
my $calling_convention = "";
my $return_type;
my $name;
my @arguments;
my @argument_lines;
my @argument_columns;
my $statements;
my $statements_line;
my $statements_column;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
my $begin_line = $line;
my $begin_column = $column + 1;
my $match;
while($self->_parse_c('const|inline|extern|static|volatile|' .
'signed(?=\\s+char|s+int|\s+long(?:\s+long)?|\s+short)|' .
'unsigned(?=\s+char|\s+int|\s+long(?:\s+long)?|\s+short)',
\$_, \$line, \$column, \$match))
{
if($match =~ /^extern|static$/) {
if(!$linkage) {
$linkage = $match;
}
}
}
if(0) {
# Nothing
} elsif($self->_parse_c('DECL_GLOBAL_CONSTRUCTOR', \$_, \$line, \$column, \$name)) { # FIXME: Wine specific kludge
# Nothing
} elsif($self->_parse_c('WINE_EXCEPTION_FILTER\(\w+\)', \$_, \$line, \$column, \$name)) { # FIXME: Wine specific kludge
# Nothing
} else {
if(!$self->parse_c_type(\$_, \$line, \$column, \$return_type)) {
return 0;
}
$self->_parse_c("__cdecl|__stdcall|inline|CDECL|VFWAPIV|VFWAPI|WINAPIV|WINAPI|CALLBACK|WINE_UNUSED|PASCAL",
\$_, \$line, \$column, \$calling_convention);
if(!$self->_parse_c('\w+', \$_, \$line, \$column, \$name)) {
return 0;
}
if(!$self->parse_c_tuple(\$_, \$line, \$column, \@arguments, \@argument_lines, \@argument_columns)) {
return 0;
}
}
my $kar;
# FIXME: Implement proper handling of K&R C functions
$self->_parse_c_until_one_of("{", \$_, \$line, \$column, $kar);
if($kar) {
$output->write("K&R: $kar\n");
}
if($_ && !$self->parse_c_block(\$_, \$line, \$column, \$statements, \$statements_line, \$statements_column)) {
return 0;
}
my $end_line = $line;
my $end_column = $column;
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
my $function = &$$create_function;
$function->file($$file);
$function->begin_line($begin_line);
$function->begin_column($begin_column);
$function->end_line($end_line);
$function->end_column($end_column);
$function->linkage($linkage);
$function->return_type($return_type);
$function->calling_convention($calling_convention);
$function->name($name);
# if(defined($argument_types)) {
# $function->argument_types([@$argument_types]);
# }
# if(defined($argument_names)) {
# $function->argument_names([@$argument_names]);
# }
$function->statements_line($statements_line);
$function->statements_column($statements_column);
$function->statements($statements);
$$reffunction = $function;
return 1;
}
########################################################################
# parse_c_function_call
sub parse_c_function_call {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $refname = shift;
my $refarguments = shift;
my $refargument_lines = shift;
my $refargument_columns = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
my $name;
my @arguments;
my @argument_lines;
my @argument_columns;
if(s/^(\w+)(\s*)(?=\()//s) {
$self->_update_c_position($&, \$line, \$column);
$name = $1;
if(!$self->parse_c_tuple(\$_, \$line, \$column, \@arguments, \@argument_lines, \@argument_columns)) {
return 0;
}
} else {
return 0;
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
$$refname = $name;
@$refarguments = @arguments;
@$refargument_lines = @argument_lines;
@$refargument_columns = @argument_columns;
return 1;
}
########################################################################
# parse_c_preprocessor
sub parse_c_preprocessor {
my $self = shift;
my $found_preprocessor = \${$self->{FOUND_PREPROCESSOR}};
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
my $begin_line = $line;
my $begin_column = $column + 1;
if(!&$$found_preprocessor($begin_line, $begin_column, "$_")) {
return 1;
}
if(0) {
# Nothing
} elsif(/^\#\s*define\s*(.*?)$/s) {
$self->_update_c_position($_, \$line, \$column);
} elsif(/^\#\s*else/s) {
$self->_update_c_position($_, \$line, \$column);
} elsif(/^\#\s*endif/s) {
$self->_update_c_position($_, \$line, \$column);
} elsif(/^\#\s*(?:if|ifdef|ifndef)?\s*(.*?)$/s) {
$self->_update_c_position($_, \$line, \$column);
} elsif(/^\#\s*include\s+(.*?)$/s) {
$self->_update_c_position($_, \$line, \$column);
} elsif(/^\#\s*undef\s+(.*?)$/s) {
$self->_update_c_position($_, \$line, \$column);
} else {
$self->_parse_c_error($_, $line, $column, "preprocessor");
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
return 1;
}
########################################################################
# parse_c_statement
sub parse_c_statement {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $found_function_call = \${$self->{FOUND_FUNCTION_CALL}};
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
$self->_parse_c('(?:case\s+)?(\w+)\s*:\s*', \$_, \$line, \$column);
# $output->write("$line.$column: statement: '$_'\n");
if(/^$/) {
# Nothing
} elsif(/^\{/) {
my $statements;
my $statements_line;
my $statements_column;
if(!$self->parse_c_block(\$_, \$line, \$column, \$statements, \$statements_line, \$statements_column)) {
return 0;
}
if(!$self->parse_c_statements(\$statements, \$statements_line, \$statements_column)) {
return 0;
}
} elsif(s/^(for|if|switch|while)\s*(?=\()//) {
$self->_update_c_position($&, \$line, \$column);
my $name = $1;
my @arguments;
my @argument_lines;
my @argument_columns;
if(!$self->parse_c_tuple(\$_, \$line, \$column, \@arguments, \@argument_lines, \@argument_columns)) {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
if(!$self->parse_c_statement(\$_, \$line, \$column)) {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
while(defined(my $argument = shift @arguments) &&
defined(my $argument_line = shift @argument_lines) &&
defined(my $argument_column = shift @argument_columns))
{
$self->parse_c_expression(\$argument, \$argument_line, \$argument_column);
}
} elsif(s/^else//) {
$self->_update_c_position($&, \$line, \$column);
if(!$self->parse_c_statement(\$_, \$line, \$column)) {
return 0;
}
} elsif(s/^return//) {
$self->_update_c_position($&, \$line, \$column);
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
if(!$self->parse_c_expression(\$_, \$line, \$column)) {
return 0;
}
} elsif($self->parse_c_expression(\$_, \$line, \$column)) {
# Nothing
} else {
# $self->_parse_c_error($_, $line, $column, "statement");
}
$self->_update_c_position($_, \$line, \$column);
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
return 1;
}
########################################################################
# parse_c_statements
sub parse_c_statements {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $found_function_call = \${$self->{FOUND_FUNCTION_CALL}};
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
# $output->write("$line.$column: statements: '$_'\n");
my $statement = "";
my $statement_line = $line;
my $statement_column = $column;
my $previous_line = -1;
my $previous_column = -1;
my $blevel = 1;
my $plevel = 1;
while($plevel > 0 || $blevel > 0) {
my $match;
$self->_parse_c_until_one_of("\\(\\)\\[\\]\\{\\};", \$_, \$line, \$column, \$match);
if($previous_line == $line && $previous_column == $column) {
$self->_parse_c_error($_, $line, $column, "statements", "no progress");
}
$previous_line = $line;
$previous_column = $column;
# $output->write("'$match' '$_'\n");
$statement .= $match;
$column++;
if(s/^[\(\[]//) {
$plevel++;
$statement .= $&;
} elsif(s/^[\)\]]//) {
$plevel--;
if($plevel <= 0) {
$self->_parse_c_error($_, $line, $column, "statements");
}
$statement .= $&;
} elsif(s/^\{//) {
$blevel++;
$statement .= $&;
} elsif(s/^\}//) {
$blevel--;
$statement .= $&;
if($blevel == 1) {
if(!$self->parse_c_statement(\$statement, \$statement_line, \$statement_column)) {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
$statement = "";
$statement_line = $line;
$statement_column = $column;
}
} elsif(s/^;//) {
if($plevel == 1 && $blevel == 1) {
if(!$self->parse_c_statement(\$statement, \$statement_line, \$statement_column)) {
return 0;
}
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
$statement = "";
$statement_line = $line;
$statement_column = $column;
} else {
$statement .= $&;
}
} elsif(/^\s*$/ && $statement =~ /^\s*$/ && $match =~ /^\s*$/) {
$plevel = 0;
$blevel = 0;
} else {
$self->_parse_c_error($_, $line, $column, "statements");
}
}
$self->_update_c_position($_, \$line, \$column);
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
return 1;
}
########################################################################
# parse_c_tuple
sub parse_c_tuple {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
# FIXME: Should not write directly
my $items = shift;
my $item_lines = shift;
my $item_columns = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
my $item;
if(s/^\(//) {
$column++;
$item = "";
} else {
return 0;
}
my $item_line = $line;
my $item_column = $column + 1;
my $plevel = 1;
while($plevel > 0) {
my $match;
$self->_parse_c_until_one_of("\\(,\\)", \$_, \$line, \$column, \$match);
$column++;
$item .= $match;
if(s/^\)//) {
$plevel--;
if($plevel == 0) {
push @$item_lines, $item_line;
push @$item_columns, $item_column;
push @$items, $item;
$item = "";
} else {
$item .= ")";
}
} elsif(s/^\(//) {
$plevel++;
$item .= "(";
} elsif(s/^,//) {
if($plevel == 1) {
push @$item_lines, $item_line;
push @$item_columns, $item_column;
push @$items, $item;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
$item_line = $line;
$item_column = $column + 1;
$item = "";
} else {
$item .= ",";
}
} else {
return 0;
}
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
return 1;
}
########################################################################
# parse_c_type
sub parse_c_type {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $reftype = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
my $type;
$self->_parse_c("const", \$_, \$line, \$column);
if(0) {
# Nothing
} elsif($self->_parse_c('ICOM_VTABLE\(.*?\)', \$_, \$line, \$column, \$type)) {
# Nothing
} elsif($self->_parse_c('(?:enum\s+|struct\s+|union\s+)?\w+\s*(\*\s*)*', \$_, \$line, \$column, \$type)) {
# Nothing
} else {
return 0;
}
$type =~ s/\s//g;
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
$$reftype = $type;
return 1;
}
########################################################################
# parse_c_typedef
sub parse_c_typedef {
my $self = shift;
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $reftype = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
my $type;
if($self->_parse_c("typedef", \$_, \$line, \$column)) {
# Nothing
} elsif($self->_parse_c('enum(?:\s+\w+)?\s*\{', \$_, \$line, \$column)) {
# Nothing
} else {
return 0;
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
$$reftype = $type;
return 1;
}
########################################################################
# parse_c_variable
sub parse_c_variable {
my $self = shift;
my $found_variable = \${$self->{FOUND_VARIABLE}};
my $refcurrent = shift;
my $refline = shift;
my $refcolumn = shift;
my $reflinkage = shift;
my $reftype = shift;
my $refname = shift;
local $_ = $$refcurrent;
my $line = $$refline;
my $column = $$refcolumn;
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
my $begin_line = $line;
my $begin_column = $column + 1;
my $linkage = "";
my $type = "";
my $name = "";
my $match;
while($self->_parse_c('const|inline|extern|static|volatile|' .
'signed(?=\\s+char|s+int|\s+long(?:\s+long)?|\s+short)|' .
'unsigned(?=\s+char|\s+int|\s+long(?:\s+long)?|\s+short)',
\$_, \$line, \$column, \$match))
{
if($match =~ /^extern|static$/) {
if(!$linkage) {
$linkage = $match;
}
}
}
my $finished = 0;
if($finished) {
# Nothing
} elsif($self->_parse_c('SEQ_DEFINEBUF', \$_, \$line, \$column, \$match)) { # Linux specific
$type = $match;
$finished = 1;
} elsif($self->_parse_c('DEFINE_GUID', \$_, \$line, \$column, \$match)) { # Windows specific
$type = $match;
$finished = 1;
} elsif($self->_parse_c('DEFINE_REGS_ENTRYPOINT_\w+|DPQ_DECL_\w+|HANDLER_DEF|IX86_ONLY', # Wine specific
\$_, \$line, \$column, \$match))
{
$type = $match;
$finished = 1;
} elsif($self->_parse_c('(?:struct\s+)?ICOM_VTABLE\s*\(\w+\)', \$_, \$line, \$column, \$match)) {
$type = $match;
$finished = 1;
} elsif(s/^(?:enum\s+|struct\s+|union\s+)(\w+)?\s*\{.*?\}\s*//s) {
$self->_update_c_position($&, \$line, \$column);
if(defined($1)) {
$type = "struct $1 { }";
} else {
$type = "struct { }";
}
if(defined($2)) {
my $stars = $2;
$stars =~ s/\s//g;
if($stars) {
$type .= " $type";
}
}
} elsif(s/^((?:enum\s+|struct\s+|union\s+)?\w+)\s*(?:\*\s*)*//s) {
$type = $&;
$type =~ s/\s//g;
} else {
return 0;
}
# $output->write("$type: '$_'\n");
if($finished) {
# Nothing
} elsif(s/^WINAPI\s*//) {
$self->_update_c_position($&, \$line, \$column);
}
if($finished) {
# Nothing
} elsif(s/^(\((?:__cdecl)?\s*\*?\s*(?:__cdecl)?\w+\s*(?:\[[^\]]*\]\s*)*\))\s*\(//) {
$self->_update_c_position($&, \$line, \$column);
$name = $1;
$name =~ s/\s//g;
$self->_parse_c_until_one_of("\\)", \$_, \$line, \$column);
if(s/^\)//) { $column++; }
$self->_parse_c_until_one_of("\\S", \$_, \$line, \$column);
if(!s/^(?:=\s*|,\s*|$)//) {
return 0;
}
} elsif(s/^(?:\*\s*)*(?:const\s+)?(\w+)\s*(?:\[[^\]]*\]\s*)*\s*(?:=\s*|,\s*|$)//) {
$self->_update_c_position($&, \$line, \$column);
$name = $1;
$name =~ s/\s//g;
} elsif(/^$/) {
$name = "";
} else {
return 0;
}
# $output->write("$type: $name: '$_'\n");
if(1) {
# Nothing
} elsif($self->_parse_c('(?:struct\s+)?ICOM_VTABLE\s*\(.*?\)', \$_, \$line, \$column, \$match)) {
$type = "<type>";
$name = "<name>";
} elsif(s/^((?:enum\s+|struct\s+|union\s+)?\w+)\s*
(?:\*\s*)*(\w+|\s*\*?\s*\w+\s*\))\s*(?:\[[^\]]*\]|\([^\)]*\))?
(?:,\s*(?:\*\s*)*(\w+)\s*(?:\[[^\]]*\])?)*
\s*(?:=|$)//sx)
{
$self->_update_c_position($&, \$line, \$column);
$type = $1;
$name = $2;
$type =~ s/\s//g;
$type =~ s/^struct/struct /;
} elsif(/^(?:enum|struct|union)(?:\s+(\w+))?\s*\{.*?\}\s*((?:\*\s*)*)(\w+)\s*(?:=|$)/s) {
$self->_update_c_position($&, \$line, \$column);
if(defined($1)) {
$type = "struct $1 { }";
} else {
$type = "struct { }";
}
my $stars = $2;
$stars =~ s/\s//g;
if($stars) {
$type .= " $type";
}
$name = $3;
} else {
return 0;
}
if(!$name) {
$name = "<name>";
}
$$refcurrent = $_;
$$refline = $line;
$$refcolumn = $column;
$$reflinkage = $linkage;
$$reftype = $type;
$$refname = $name;
if(&$$found_variable($begin_line, $begin_column, $linkage, $type, $name))
{
# Nothing
}
return 1;
}
1;