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510 lines
17 KiB
Perl
Executable File
510 lines
17 KiB
Perl
Executable File
#!/usr/bin/perl
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use warnings;
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use strict;
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use feature "switch";
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no if $] >= 5.018, warnings => "experimental::smartmatch";
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package _c_base;
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use parent '_default';
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use Text::Balanced qw/extract_bracketed/;
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sub initialize {
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my ($self, %conf) = @_;
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$self->{sourcefile} = 'prog.c';
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$self->{execfile} = 'prog';
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$self->{default_options} = '-Wextra -Wall -Wno-unused -pedantic -Wfloat-equal -Wshadow -std=c11 -lm -Wfatal-errors';
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$self->{options_paste} = '-fdiagnostics-show-caret';
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$self->{options_nopaste} = '-fno-diagnostics-show-caret';
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$self->{cmdline} = 'gcc -ggdb -g3 $sourcefile $options -o $execfile';
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$self->{prelude} = <<'END';
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#define _XOPEN_SOURCE 9001
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#define __USE_XOPEN
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <math.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdarg.h>
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#include <stdnoreturn.h>
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#include <stdalign.h>
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#include <ctype.h>
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#include <inttypes.h>
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#include <float.h>
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#include <errno.h>
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#include <time.h>
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#include <assert.h>
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#include <complex.h>
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#include <setjmp.h>
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#include <wchar.h>
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#include <wctype.h>
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#include <tgmath.h>
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#include <fenv.h>
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#include <locale.h>
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#include <iso646.h>
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#include <signal.h>
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#include <uchar.h>
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#include <prelude.h>
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END
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}
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sub process_custom_options {
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my $self = shift;
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$self->{code} = $self->{code};
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$self->add_option("-nomain") if $self->{code} =~ s/(?:^|(?<=\s))-nomain\s*//i;
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$self->{include_options} = "";
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while ($self->{code} =~ s/(?:^|(?<=\s))-include\s+(\S+)\s+//) {
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$self->{include_options} .= "#include <$1> ";
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$self->add_option("-include $1");
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}
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$self->{code} = $self->{code};
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}
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sub pretty_format {
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my $self = shift;
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my $code = join '', @_;
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my $result;
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$code = $self->{code} if not defined $code;
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open my $fh, ">$self->{sourcefile}" or die "Couldn't write $self->{sourcefile}: $!";
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print $fh $code;
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close $fh;
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system("astyle", "-UHfenq", $self->{sourcefile});
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open $fh, "<$self->{sourcefile}" or die "Couldn't read $self->{sourcefile}: $!";
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$result = join '', <$fh>;
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close $fh;
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return $result;
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}
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sub preprocess_code {
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my $self = shift;
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$self->SUPER::preprocess_code;
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my $default_prelude = $self->{prelude};
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$self->{code} = $self->{include_options} . $self->{code};
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print "code before: [$self->{code}]\n" if $self->{debug};
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# replace \n outside of quotes with literal newline
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my $new_code = "";
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use constant {
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NORMAL => 0,
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DOUBLE_QUOTED => 1,
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SINGLE_QUOTED => 2,
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};
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my $state = NORMAL;
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my $escaped = 0;
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while($self->{code} =~ m/(.)/gs) {
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my $ch = $1;
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given ($ch) {
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when ('\\') {
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if($escaped == 0) {
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$escaped = 1;
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next;
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}
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}
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if($state == NORMAL) {
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when ($_ eq '"' and not $escaped) {
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$state = DOUBLE_QUOTED;
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}
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when ($_ eq "'" and not $escaped) {
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$state = SINGLE_QUOTED;
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}
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when ($_ eq 'n' and $escaped == 1) {
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$ch = "\n";
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$escaped = 0;
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}
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}
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if($state == DOUBLE_QUOTED) {
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when ($_ eq '"' and not $escaped) {
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$state = NORMAL;
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}
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}
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if($state == SINGLE_QUOTED) {
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when ($_ eq "'" and not $escaped) {
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$state = NORMAL;
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}
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}
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}
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$new_code .= '\\' and $escaped = 0 if $escaped;
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$new_code .= $ch;
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}
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$self->{code} = $new_code;
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print "code after \\n replacement: [$self->{code}]\n" if $self->{debug};
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# add newlines to ends of statements and #includes
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my $single_quote = 0;
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my $double_quote = 0;
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my $parens = 0;
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my $cpp = 0; # preprocessor
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$escaped = 0;
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while($self->{code} =~ m/(.)/msg) {
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my $ch = $1;
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my $pos = pos $self->{code};
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print "adding newlines, ch = [$ch], parens: $parens, cpp: $cpp, single: $single_quote, double: $double_quote, escaped: $escaped, pos: $pos\n" if $self->{debug} >= 10;
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if($ch eq '\\') {
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$escaped = not $escaped;
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} elsif($ch eq '#' and not $cpp and not $escaped and not $single_quote and not $double_quote) {
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$cpp = 1;
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if($self->{code} =~ m/include\s*<([^>\n]*)>/msg) {
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my $match = $1;
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$pos = pos $self->{code};
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substr ($self->{code}, $pos, 0) = "\n";
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pos $self->{code} = $pos;
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$cpp = 0;
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} elsif($self->{code} =~ m/include\s*"([^"\n]*)"/msg) {
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my $match = $1;
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$pos = pos $self->{code};
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substr ($self->{code}, $pos, 0) = "\n";
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pos $self->{code} = $pos;
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$cpp = 0;
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} else {
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pos $self->{code} = $pos;
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}
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} elsif($ch eq '"') {
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$double_quote = not $double_quote unless $escaped or $single_quote;
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$escaped = 0;
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} elsif($ch eq '(' and not $single_quote and not $double_quote) {
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$parens++;
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} elsif($ch eq ')' and not $single_quote and not $double_quote) {
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$parens--;
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$parens = 0 if $parens < 0;
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} elsif($ch eq ';' and not $cpp and not $single_quote and not $double_quote and $parens == 0) {
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if(not substr($self->{code}, $pos, 1) =~ m/[\n\r]/) {
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substr ($self->{code}, $pos, 0) = "\n";
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pos $self->{code} = $pos + 1;
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}
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} elsif($ch eq "'") {
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$single_quote = not $single_quote unless $escaped or $double_quote;
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$escaped = 0;
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} elsif($ch eq 'n' and $escaped) {
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if(not $single_quote and not $double_quote) {
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print "added newline\n" if $self->{debug} >= 10;
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substr ($self->{code}, $pos - 2, 2) = "\n";
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pos $self->{code} = $pos;
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$cpp = 0;
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}
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$escaped = 0;
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} elsif($ch eq '{' and not $cpp and not $single_quote and not $double_quote) {
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if(not substr($self->{code}, $pos, 1) =~ m/[\n\r]/) {
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substr ($self->{code}, $pos, 0) = "\n";
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pos $self->{code} = $pos + 1;
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}
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} elsif($ch eq '}' and not $cpp and not $single_quote and not $double_quote) {
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if(not substr($self->{code}, $pos, 1) =~ m/[\n\r;]/) {
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substr ($self->{code}, $pos, 0) = "\n";
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pos $self->{code} = $pos + 1;
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}
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} elsif($ch eq "\n" and $cpp and not $single_quote and not $double_quote) {
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$cpp = 0;
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} else {
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$escaped = 0;
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}
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}
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print "code after \\n additions: [$self->{code}]\n" if $self->{debug};
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# white-out contents of quoted literals so content within literals aren't parsed as code
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my $white_code = $self->{code};
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$white_code =~ s/(?:\"((?:\\\"|(?!\").)*)\")/'"' . ('-' x length $1) . '"'/ge;
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$white_code =~ s/(?:\'((?:\\\'|(?!\').)*)\')/"'" . ('-' x length $1) . "'"/ge;
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my $precode;
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if($white_code =~ m/#include/) {
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$precode = $self->{code};
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} else {
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$precode = $default_prelude . $self->{code};
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}
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$self->{code} = '';
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print "--- precode: [$precode]\n" if $self->{debug};
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$self->{warn_unterminated_define} = 0;
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my $has_main = 0;
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my $prelude = '';
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while($precode =~ s/^\s*(#.*\n{1,2})//g) {
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$prelude .= $1;
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}
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if($precode =~ m/^\s*(#.*)/ms) {
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my $line = $1;
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if($line !~ m/\n/) {
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$self->{warn_unterminated_define} = 1;
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}
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}
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print "*** prelude: [$prelude]\n precode: [$precode]\n" if $self->{debug};
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my $preprecode = $precode;
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# white-out contents of quoted literals
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$preprecode =~ s/(?:\"((?:\\\"|(?!\").)*)\")/'"' . ('-' x length $1) . '"'/ge;
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$preprecode =~ s/(?:\'((?:\\\'|(?!\').)*)\')/"'" . ('-' x length $1) . "'"/ge;
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# strip comments
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if ($self->{lang} eq 'c89') {
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$preprecode =~ s#/\*[^*]*\*+([^/*][^*]*\*+)*/# #gs;
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$preprecode =~ s#|//([^\\]|[^\n][\n]?)*?\n|("(\\.|[^"\\])*"|'(\\.|[^'\\])*'|.[^/"'\\]*)#defined $2 ? $2 : ""#gse;
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} else {
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$preprecode =~ s#|//([^\\]|[^\n][\n]?)*?\n|("(\\.|[^"\\])*"|'(\\.|[^'\\])*'|.[^/"'\\]*)#defined $2 ? $2 : ""#gse;
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$preprecode =~ s#/\*[^*]*\*+([^/*][^*]*\*+)*/# #gs;
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}
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print "preprecode: [$preprecode]\n" if $self->{debug};
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print "looking for functions, has main: $has_main\n" if $self->{debug} >= 2;
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my $func_regex = qr/^([ *\w]+)\s+([ ()*\w]+)\s*\(([^;{]*)\s*\)\s*({.*|<%.*|\?\?<.*)/ims;
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# look for potential functions to extract
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while($preprecode =~ /$func_regex/ms) {
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my ($pre_ret, $pre_ident, $pre_params, $pre_potential_body) = ($1, $2, $3, $4);
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my $precode_code;
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print "looking for functions, found [$pre_ret][$pre_ident][$pre_params][$pre_potential_body], has main: $has_main\n" if $self->{debug} >= 1;
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# find the pos at which this function lives, for extracting from precode
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$preprecode =~ m/(\Q$pre_ret\E\s+\Q$pre_ident\E\s*\(\s*\Q$pre_params\E\s*\)\s*\Q$pre_potential_body\E)/g;
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my $extract_pos = (pos $preprecode) - (length $1);
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# now that we have the pos, substitute out the extracted potential function from preprecode
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$preprecode =~ s/$func_regex//ms;
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# create tmpcode object that starts from extract pos, to skip any quoted code
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my $tmpcode = substr($precode, $extract_pos);
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print "tmpcode: [$tmpcode]\n" if $self->{debug};
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$precode = substr($precode, 0, $extract_pos);
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print "precode: [$precode]\n" if $self->{debug};
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$precode_code = $precode;
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$tmpcode =~ m/$func_regex/ms;
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my ($ret, $ident, $params, $potential_body) = ($1, $2, $3, $4);
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print "1st extract: [$ret][$ident][$params][$potential_body]\n" if $self->{debug};
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$ret =~ s/^\s+//;
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$ret =~ s/\s+$//;
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if(not length $ret or $ret eq "else" or $ret eq "while" or $ret eq "if" or $ret eq "for" or $ident eq "for" or $ident eq "while" or $ident eq "if") {
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$precode .= "$ret $ident ($params) $potential_body";
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next;
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} else {
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$tmpcode =~ s/$func_regex//ms;
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}
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$potential_body =~ s/^\s*<%/{/ms;
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$potential_body =~ s/%>\s*$/}/ms;
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$potential_body =~ s/^\s*\?\?</{/ms;
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$potential_body =~ s/\?\?>$/}/ms;
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my @extract = extract_bracketed($potential_body, '{}');
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my $body;
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if(not defined $extract[0]) {
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if($self->{debug} == 0) {
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print "error: unmatched brackets\n";
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} else {
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print "error: unmatched brackets for function '$ident';\n";
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print "body: [$potential_body]\n";
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}
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exit;
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} else {
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$body = $extract[0];
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$preprecode = $extract[1];
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$precode = $extract[1];
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}
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print "final extract: [$ret][$ident][$params][$body]\n" if $self->{debug};
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$self->{code} .= "$precode_code\n$ret $ident($params) $body\n";
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if($self->{debug} >= 2) { print '-' x 20 . "\n" }
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print " code: [$self->{code}]\n" if $self->{debug} >= 2;
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if($self->{debug} >= 2) { print '-' x 20 . "\n" }
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print " precode: [$precode]\n" if $self->{debug} >= 2;
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$has_main = 1 if $ident =~ m/^\s*\(?\s*main\s*\)?\s*$/;
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}
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$precode =~ s/^\s+//;
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$precode =~ s/\s+$//;
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$precode =~ s/^{(.*)}$/$1/s;
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if(not $has_main and not exists $self->{options}->{'-nomain'}) {
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$self->{code} = "$prelude\n$self->{code}\n" . "int main(void) {\n$precode\n;\nreturn 0;\n}\n";
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} else {
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$self->{code} = "$prelude\n$self->{code}\n";
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}
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print "after func extract, code: [$self->{code}]\n" if $self->{debug};
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$self->{code} =~ s/\|n/\n/g;
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$self->{code} =~ s/^\s+//;
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$self->{code} =~ s/\s+$//;
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$self->{code} =~ s/;\s*;\n/;\n/gs;
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$self->{code} =~ s/;(\s*\/\*.*?\*\/\s*);\n/;$1/gs;
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$self->{code} =~ s/;(\s*\/\/.*?\s*);\n/;$1/gs;
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$self->{code} =~ s/({|})\n\s*;\n/$1\n/gs;
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$self->{code} =~ s/(?:\n\n)+/\n\n/g;
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print "final code: [$self->{code}]\n" if $self->{debug};
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}
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sub postprocess_output {
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my $self = shift;
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$self->SUPER::postprocess_output;
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my $output = $self->{output};
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$output =~ s/In file included from .*?:\d+:\d+.\s*from $self->{sourcefile}:\d+.\s*//msg;
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$output =~ s/In file included from .*?:\d+:\d+.\s*//msg;
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$output =~ s/\s*from $self->{sourcefile}:\d+.\s*//g;
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$output =~ s/$self->{execfile}: $self->{sourcefile}:\d+: [^:]+: Assertion/Assertion/g;
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$output =~ s,/usr/include/[^:]+:\d+:\d+:\s+,,g;
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unless(exists $self->{options}->{'-paste'} or (defined $self->{got_run} and $self->{got_run} eq "paste")) {
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$output =~ s/ Line \d+ ://g;
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$output =~ s/$self->{sourcefile}:[:\d]*//g;
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} else {
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$output =~ s/$self->{sourcefile}:(\d+)/\n$1/g;
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$output =~ s/$self->{sourcefile}://g;
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}
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$output =~ s/;?\s?__PRETTY_FUNCTION__ = "[^"]+"//g;
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$output =~ s/(\d+:\d+:\s*)*cc1: (all\s+)?warnings being treated as errors//;
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$output =~ s/(\d+:\d+:\s*)* \(first use in this function\)//g;
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$output =~ s/(\d+:\d+:\s*)*error: \(Each undeclared identifier is reported only once.*?\)//msg;
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$output =~ s/(\d+:\d+:\s*)*ld: warning: cannot find entry symbol _start; defaulting to [^ ]+//;
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$output =~ s/(\d+:\d+:\s*)*\/tmp\/.*\.o://g;
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$output =~ s/(\d+:\d+:\s*)*collect2: ld returned \d+ exit status//g;
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$output =~ s/\(\.text\+[^)]+\)://g;
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$output =~ s/\[ In/[In/;
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$output =~ s/(\d+:\d+:\s*)*warning: Can't read pathname for load map: Input.output error.//g;
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my $left_quote = chr(226) . chr(128) . chr(152);
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my $right_quote = chr(226) . chr(128) . chr(153);
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$output =~ s/$left_quote/'/msg;
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$output =~ s/$right_quote/'/msg;
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$output =~ s/`/'/msg;
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$output =~ s/\t/ /g;
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if($output =~ /In function '([^']+)':/) {
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if($1 eq 'main') {
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$output =~ s/(\d+:\d+:\s*)*\s?In function .main.:\s*//g;
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} else {
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$output =~ s/(\d+:\d+:\s*)*\s?In function .main.:\s?/In function 'main':/g;
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}
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}
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$output =~ s/(\d+:\d+:\s*)*warning: unknown conversion type character 'b' in format \[-Wformat=?\]\s+(\d+:\d+:\s*)*warning: too many arguments for format \[-Wformat-extra-args\]/info: %b is a candide extension/g;
|
|
$output =~ s/(\d+:\d+:\s*)*warning: unknown conversion type character 'b' in format \[-Wformat=?\]//g;
|
|
$output =~ s/\s\(core dumped\)/./;
|
|
$output =~ s/ \[enabled by default\]//g;
|
|
$output =~ s/initializer\s+warning: \(near/initializer (near/g;
|
|
$output =~ s/(\d+:\d+:\s*)*note: each undeclared identifier is reported only once for each function it appears in//g;
|
|
$output =~ s/\(gdb\)//g;
|
|
$output =~ s/", '\\(\d{3})' <repeats \d+ times>,? ?"/\\$1/g;
|
|
$output =~ s/, '\\(\d{3})' <repeats \d+ times>\s*//g;
|
|
$output =~ s/(\\000)+/\\0/g;
|
|
$output =~ s/\\0[^">']+/\\0/g;
|
|
$output =~ s/= (\d+) '\\0'/= $1/g;
|
|
$output =~ s/\\0"/"/g;
|
|
$output =~ s/"\\0/"/g;
|
|
$output =~ s/\.\.\.>/>/g;
|
|
$output =~ s/<\s*included at \/home\/compiler\/>\s*//g;
|
|
$output =~ s/\s*compilation terminated due to -Wfatal-errors\.//g;
|
|
$output =~ s/^======= Backtrace.*\[vsyscall\]\s*$//ms;
|
|
$output =~ s/glibc detected \*\*\* \/home\/compiler\/$self->{execfile}: //;
|
|
$output =~ s/: \/home\/compiler\/$self->{execfile} terminated//;
|
|
$output =~ s/<Defined at \/home\/compiler\/>/<Defined at \/home\/compiler\/$self->{sourcefile}:0>/g;
|
|
$output =~ s/\s*In file included from\s+\/usr\/include\/.*?:\d+:\d+:\s*/, /g;
|
|
$output =~ s/\s*collect2: error: ld returned 1 exit status//g;
|
|
$output =~ s/In function\s*`main':\s*\/home\/compiler\/ undefined reference to/error: undefined reference to/g;
|
|
$output =~ s/\/home\/compiler\///g;
|
|
$output =~ s/compilation terminated.//;
|
|
$output =~ s/'(.*?)' = char/'$1' = int/g; $output =~ s/(\(\s*char\s*\)\s*'.*?') = int/$1 = char/; # gdb thinks 'a' is type char, which is not true for C
|
|
$output =~ s/= (-?\d+) ''/= $1/g;
|
|
$output =~ s/, <incomplete sequence >//g;
|
|
$output =~ s/\s*warning: shadowed declaration is here \[-Wshadow\]//g unless exists $self->{options}->{'-paste'} or (defined $self->{got_run} and $self->{got_run} eq 'paste');
|
|
$output =~ s/\s*note: shadowed declaration is here//g unless exists $self->{options}->{'-paste'} or (defined $self->{got_run} and $self->{got_run} eq 'paste');
|
|
$output =~ s/preprocessor macro>\s+<at\s+>/preprocessor macro>/g;
|
|
$output =~ s/<No symbol table is loaded. Use the "file" command.>\s*//g;
|
|
$output =~ s/cc1: all warnings being treated as; errors//g;
|
|
$output =~ s/, note: this is the location of the previous definition//g;
|
|
$output =~ s/ called by gdb \(\) at statement: void gdb\(\) { __asm__\(""\); }//g;
|
|
|
|
my $removed_warning = 0;
|
|
|
|
$removed_warning++ if $output =~ s/warning: ISO C forbids nested functions \[-pedantic\]\s*//g;
|
|
|
|
if($removed_warning) {
|
|
$output =~ s/^\[\]\s*//;
|
|
}
|
|
|
|
$output =~ s/^\[\s+(warning:|info:)/[$1/; # remove leading spaces in first warning/info
|
|
|
|
# backspace
|
|
my $boutput = "";
|
|
my $active_position = 0;
|
|
$output =~ s/\n$//;
|
|
while($output =~ /(.)/gms) {
|
|
my $c = $1;
|
|
if($c eq "\b") {
|
|
if(--$active_position <= 0) {
|
|
$active_position = 0;
|
|
}
|
|
next;
|
|
}
|
|
substr($boutput, $active_position++, 1) = $c;
|
|
}
|
|
$output = $boutput;
|
|
|
|
if($self->{warn_unterminated_define} == 1) {
|
|
if($output =~ m/^\[(warning:|info:)/) {
|
|
$output =~ s/^\[/[warning: preprocessor directive not terminated by \\n, the remainder of the line will be part of this directive /;
|
|
} else {
|
|
$output =~ s/^/[warning: preprocessor directive not terminated by \\n, the remainder of the line will be part of this directive] /;
|
|
}
|
|
}
|
|
|
|
$self->{output} = $output;
|
|
}
|
|
|
|
1;
|