use Config;
use File::Basename qw(&basename &dirname);
+use Cwd;
# List explicitly here the variables you want Configure to
# generate. Metaconfig only looks for shell variables, so you
# This forces PL files to create target in same directory as PL file.
# This is so that make depend always knows where to find PL derivatives.
-chdir(dirname($0));
-($file = basename($0)) =~ s/\.PL$//;
-$file =~ s/\.pl$//
- if ($^O eq 'VMS' or $^O eq 'os2'); # "case-forgiving"
+$origdir = cwd;
+chdir dirname($0);
+$file = basename($0, '.PL');
+$file .= '.com' if $^O eq 'VMS';
open OUT,">$file" or die "Can't create $file: $!";
# You can use $Config{...} to use Configure variables.
print OUT <<"!GROK!THIS!";
-$Config{'startperl'}
- eval 'exec perl -S \$0 "\$@"'
- if 0;
+$Config{startperl}
+ eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
+ if \$running_under_some_shell;
\$startperl = "$Config{startperl}";
+\$perlpath = "$Config{perlpath}";
!GROK!THIS!
# In the following, perl variables are not expanded during extraction.
=head1 DESCRIPTION
-I<S2p> takes a sed script specified on the command line (or from
+I<s2p> takes a sed script specified on the command line (or from
standard input) and produces a comparable I<perl> script on the
standard output.
=head1 ENVIRONMENT
-S2p uses no environment variables.
+s2p uses no environment variables.
=head1 AUTHOR
=head1 SEE ALSO
perl The perl compiler/interpreter
-
+
a2p awk to perl translator
=head1 DIAGNOSTICS
}
unless ($debug) {
- open(BODY,">/tmp/sperl$$") ||
+ open(BODY,"+>/tmp/sperl$$") ||
&Die("Can't open temp file: $!\n");
}
: if ($atext) { chop $atext; print $atext; $atext = ''; }
: #endif
EOT
+}
print BODY &q(<<'EOT');
: }
EOT
-}
-
-close BODY;
unless ($debug) {
- open(HEAD,">/tmp/sperl2$$.c")
- || &Die("Can't open temp file 2: $!\n");
- print HEAD "#define PRINTIT\n" if $printit;
- print HEAD "#define APPENDSEEN\n" if $appendseen;
- print HEAD "#define TSEEN\n" if $tseen;
- print HEAD "#define DSEEN\n" if $dseen;
- print HEAD "#define ASSUMEN\n" if $assumen;
- print HEAD "#define ASSUMEP\n" if $assumep;
- print HEAD "#define TOPLABEL\n" if $toplabel;
- print HEAD "#define SAWNEXT\n" if $sawnext;
- if ($opens) {print HEAD "$opens\n";}
- open(BODY,"/tmp/sperl$$")
- || &Die("Can't reopen temp file: $!\n");
- while (<BODY>) {
- print HEAD $_;
- }
- close HEAD;
print &q(<<"EOT");
: $startperl
-: eval 'exec perl -S \$0 \${1+"\$@"}'
+: eval 'exec $perlpath -S \$0 \${1+"\$@"}'
: if \$running_under_some_shell;
:
EOT
- open(BODY,"cc -E /tmp/sperl2$$.c |") ||
- &Die("Can't reopen temp file: $!\n");
+ print"$opens\n" if $opens;
+ seek(BODY, 0, 0) || die "Can't rewind temp file: $!\n";
while (<BODY>) {
- /^# [0-9]/ && next;
/^[ \t]*$/ && next;
+ /^#ifdef (\w+)/ && ((${lc $1} || &skip), next);
+ /^#else/ && (&skip, next);
+ /^#endif/ && next;
s/^<><>//;
print;
}
exit;
sub Cleanup {
- chdir "/tmp";
- unlink "sperl$$", "sperl2$$", "sperl2$$.c";
+ unlink "/tmp/sperl$$";
}
sub Die {
&Cleanup;
substr($_,$i-1,1) = '$';
}
}
+ elsif ($c eq '@') {
+ substr($_, $i, 0) = '\\';
+ $i++;
+ $len++;
+ }
elsif ($c eq '&' && $repl) {
substr($_, $i, 0) = '$';
$i++;
$repl = substr($_, $repl+1, $end-$repl-1);
$end = substr($_, $end + 1, 1000);
&simplify($pat);
- $dol = '$';
$subst = "$pat$repl$delim";
$cmd = '';
while ($end) {
}
if (/^H/) {
- $_ = '$hold .= "\n"; $hold .= $_;';
+ $_ = '$hold .= "\n", $hold .= $_;';
next;
}
}
if (/^G/) {
- $_ = '$_ .= "\n"; $_ .= $hold;';
+ $_ = '$_ .= "\n", $_ .= $hold;';
next;
}
}
}
$addr =~ s/\t/\\t/g;
+ $addr =~ s/\@/\\@/g;
&simplify($addr);
$addr;
}
$_[0] =~ s/([\w\s!@#%^&-=,:;'"])\1\*/$1+/g;
}
+sub skip {
+ local($level) = 0;
+
+ while(<BODY>) {
+ /^#ifdef/ && $level++;
+ /^#else/ && !$level && return;
+ /^#endif/ && !$level-- && return;
+ }
+
+ die "Unterminated `#ifdef' conditional\n";
+}
!NO!SUBS!
close OUT or die "Can't close $file: $!";
chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
+chdir $origdir;