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compiler_vm: improve parsing/function extraction

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Pragmatic Software 2012-09-17 07:12:16 +00:00
parent 2b5ff48a4c
commit bf91c67346
2 changed files with 65 additions and 57 deletions
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4
PBot/VERSION.pm
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@ -13,8 +13,8 @@ use warnings;
# These are set automatically by the build/commit script
use constant {
BUILD_NAME => "PBot",
BUILD_REVISION => 383,
BUILD_DATE => "2012-09-06",
BUILD_REVISION => 384,
BUILD_DATE => "2012-09-17",
};
1;

118
modules/compiler_vm/compiler_vm_client.pl
View File

@ -649,7 +649,66 @@ while($code =~ m/(.)/gs) {
$code = $new_code;
print "code after: [$code]\n" if $debug;
print "code after \\n replacement: [$code]\n" if $debug;
my $single_quote = 0;
my $double_quote = 0;
my $parens = 0;
my $escaped = 0;
my $cpp = 0; # preprocessor
while($code =~ m/(.)/msg) {
my $ch = $1;
my $pos = pos $code;
print "adding newlines, ch = [$ch], parens: $parens, cpp: $cpp, single: $single_quote, double: $double_quote, escaped: $escaped, pos: $pos\n" if $debug >= 10;
if($ch eq '\\') {
$escaped = not $escaped;
} elsif($ch eq '#' and not $cpp and not $escaped and not $single_quote and not $double_quote) {
$cpp = 1;
} elsif($ch eq '"') {
$double_quote = not $double_quote unless $escaped;
$escaped = 0;
} elsif($ch eq '(' and not $single_quote and not $double_quote) {
$parens++;
} elsif($ch eq ')' and not $single_quote and not $double_quote) {
$parens--;
$parens = 0 if $parens < 0;
} elsif($ch eq ';' and not $cpp and not $single_quote and not $double_quote and $parens == 0) {
if(not substr($code, $pos, 1) =~ m/[\n\r]/) {
substr ($code, $pos, 0) = "\n";
pos $code = $pos + 1;
}
} elsif($ch eq "'") {
$single_quote = not $single_quote unless $escaped;
$escaped = 0;
} elsif($ch eq 'n' and $escaped) {
if(not $single_quote and not $double_quote) {
print "added newline\n" if $debug >= 10;
substr ($code, $pos - 2, 2) = "\n";
pos $code = $pos;
$cpp = 0;
}
$escaped = 0;
} elsif($ch eq '{' and not $cpp and not $single_quote and not $double_quote) {
if(not substr($code, $pos, 1) =~ m/[\n\r]/) {
substr ($code, $pos, 0) = "\n";
pos $code = $pos + 1;
}
} elsif($ch eq '}' and not $cpp and not $single_quote and not $double_quote) {
if(not substr($code, $pos, 1) =~ m/[\n\r;]/) {
substr ($code, $pos, 0) = "\n";
pos $code = $pos + 1;
}
} elsif($ch eq "\n" and $cpp and not $single_quote and not $double_quote) {
$cpp = 0;
} else {
$escaped = 0;
}
}
print "code after \\n additions: [$code]\n" if $debug;
my $precode;
if($code =~ m/#include/) {
@ -688,7 +747,7 @@ if($lang eq 'C' or $lang eq 'C99' or $lang eq 'C11' or $lang eq 'C++') {
print "looking for functions, has main: $has_main\n" if $debug >= 2;
my $func_regex = qr/([ a-zA-Z0-9_*\[\]]+)\s+([a-zA-Z0-9_*]+)\s*\(([^;]*)\)\s*(\{.*)/ms;
my $func_regex = qr/^([ a-zA-Z0-9_*\[\]]+)\s+([a-zA-Z0-9_*]+)\s*\(([^)]*)\)\s*(\{.*)/ms;
# look for potential functions to extract
while($preprecode =~ /$func_regex/ms) {
@ -763,59 +822,7 @@ print "after func extract, code: [$code]\n" if $debug;
$code =~ s/\|n/\n/g;
$code =~ s/^\s+//;
$code =~ s/\s+$//;
$code =~ s/;\s+;\n/;\n/gs;
my $single_quote = 0;
my $double_quote = 0;
my $parens = 0;
my $escaped = 0;
my $cpp = 0; # preprocessor
while($code =~ m/(.)/msg) {
my $ch = $1;
my $pos = pos $code;
print "adding newlines, ch = [$ch], single: $single_quote, double: $double_quote, escape: $escaped, pos: $pos\n" if $debug >= 10;
if($ch eq '\\') {
$escaped = not $escaped;
} elsif($ch eq '#' and not $cpp and not $escaped and not $single_quote and not $double_quote) {
$cpp = 1;
} elsif($ch eq '"') {
$double_quote = not $double_quote unless $escaped;
$escaped = 0;
} elsif($ch eq '(' and not $single_quote and not $double_quote) {
$parens++;
} elsif($ch eq ')' and not $single_quote and not $double_quote) {
$parens--;
$parens = 0 if $parens < 0;
} elsif($ch eq ';' and not $single_quote and not $double_quote and $parens == 0) {
if(not substr($code, $pos, 1) =~ m/[\n\r]/) {
substr ($code, $pos, 0) = "\n";
pos $code = $pos + 1;
}
} elsif($ch eq "'") {
$single_quote = not $single_quote unless $escaped;
$escaped = 0;
} elsif($ch eq 'n' and $escaped) {
substr ($code, $pos - 2, 2) = "\n" and pos $code = $pos unless $single_quote or $double_quote;
$cpp = 0 unless $single_quote or $double_quote;
$escaped = 0;
} elsif($ch eq '{' and not $cpp and not $single_quote and not $double_quote) {
if(not substr($code, $pos, 1) =~ m/[\n\r]/) {
substr ($code, $pos, 0) = "\n";
pos $code = $pos + 1;
}
} elsif($ch eq '}' and not $cpp and not $single_quote and not $double_quote) {
if(not substr($code, $pos, 1) =~ m/[\n\r;]/) {
substr ($code, $pos, 0) = "\n";
pos $code = $pos + 1;
}
} else {
$escaped = 0;
}
}
$code =~ s/;\s*;\n/;\n/gs;
$code =~ s/(?:\n\n)+/\n\n/g;
print "final code: [$code]\n" if $debug;
@ -890,6 +897,7 @@ if($output =~ m/^\s*$/) {
$output =~ s/, <incomplete sequence >//g;
$output =~ s/\s*warning: shadowed declaration is here \[-Wshadow\]//g;
$output =~ s/preprocessor macro>\s+<at\s+>/preprocessor macro>/g;
$output =~ s/<No symbol table is loaded. Use the "file" command.>\s*//;
# remove duplicate warnings/infos
$output =~ s/(\[*.*warning:.*?\s*)\1/$1/g;