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-rwxr-xr-xx2p/s2p760
1 files changed, 0 insertions, 760 deletions
diff --git a/x2p/s2p b/x2p/s2p
deleted file mode 100755
index fa6e01791d..0000000000
--- a/x2p/s2p
+++ /dev/null
@@ -1,760 +0,0 @@
-#!/usr/local/bin/perl
-
-eval 'exec /usr/local/bin/perl -S $0 ${1+"$@"}'
- if $running_under_some_shell;
-
-$bin = '/usr/local/bin';
-
-# $RCSfile: s2p.SH,v $$Revision: 4.1 $$Date: 92/08/07 18:29:23 $
-#
-# $Log: s2p.SH,v $
-# Revision 4.1 92/08/07 18:29:23 lwall
-#
-# Revision 4.0.1.2 92/06/08 17:26:31 lwall
-# patch20: s2p didn't output portable startup code
-# patch20: added ... as variant on ..
-# patch20: s2p didn't translate s/pat/\&/ or s/pat/\$/ or s/pat/\\1/ right
-#
-# Revision 4.0.1.1 91/06/07 12:19:18 lwall
-# patch4: s2p now handles embedded newlines better and optimizes common idioms
-#
-# Revision 4.0 91/03/20 01:57:59 lwall
-# 4.0 baseline.
-#
-#
-
-$indent = 4;
-$shiftwidth = 4;
-$l = '{'; $r = '}';
-
-while ($ARGV[0] =~ /^-/) {
- $_ = shift;
- last if /^--/;
- if (/^-D/) {
- $debug++;
- open(BODY,'>-');
- next;
- }
- if (/^-n/) {
- $assumen++;
- next;
- }
- if (/^-p/) {
- $assumep++;
- next;
- }
- die "I don't recognize this switch: $_\n";
-}
-
-unless ($debug) {
- open(BODY,">/tmp/sperl$$") ||
- &Die("Can't open temp file: $!\n");
-}
-
-if (!$assumen && !$assumep) {
- print BODY &q(<<'EOT');
-: while ($ARGV[0] =~ /^-/) {
-: $_ = shift;
-: last if /^--/;
-: if (/^-n/) {
-: $nflag++;
-: next;
-: }
-: die "I don't recognize this switch: $_\\n";
-: }
-:
-EOT
-}
-
-print BODY &q(<<'EOT');
-: #ifdef PRINTIT
-: #ifdef ASSUMEP
-: $printit++;
-: #else
-: $printit++ unless $nflag;
-: #endif
-: #endif
-: <><>
-: $\ = "\n"; # automatically add newline on print
-: <><>
-: #ifdef TOPLABEL
-: LINE:
-: while (chop($_ = <>)) {
-: #else
-: LINE:
-: while (<>) {
-: chop;
-: #endif
-EOT
-
-LINE:
-while (<>) {
-
- # Wipe out surrounding whitespace.
-
- s/[ \t]*(.*)\n$/$1/;
-
- # Perhaps it's a label/comment.
-
- if (/^:/) {
- s/^:[ \t]*//;
- $label = &make_label($_);
- if ($. == 1) {
- $toplabel = $label;
- if (/^(top|(re)?start|redo|begin(ning)|again|input)$/i) {
- $_ = <>;
- redo LINE; # Never referenced, so delete it if not a comment.
- }
- }
- $_ = "$label:";
- if ($lastlinewaslabel++) {
- $indent += 4;
- print BODY &tab, ";\n";
- $indent -= 4;
- }
- if ($indent >= 2) {
- $indent -= 2;
- $indmod = 2;
- }
- next;
- } else {
- $lastlinewaslabel = '';
- }
-
- # Look for one or two address clauses
-
- $addr1 = '';
- $addr2 = '';
- if (s/^([0-9]+)//) {
- $addr1 = "$1";
- $addr1 = "\$. == $addr1" unless /^,/;
- }
- elsif (s/^\$//) {
- $addr1 = 'eof()';
- }
- elsif (s|^/||) {
- $addr1 = &fetchpat('/');
- }
- if (s/^,//) {
- if (s/^([0-9]+)//) {
- $addr2 = "$1";
- } elsif (s/^\$//) {
- $addr2 = "eof()";
- } elsif (s|^/||) {
- $addr2 = &fetchpat('/');
- } else {
- &Die("Invalid second address at line $.\n");
- }
- if ($addr2 =~ /^\d+$/) {
- $addr1 .= "..$addr2";
- }
- else {
- $addr1 .= "...$addr2";
- }
- }
-
- # Now we check for metacommands {, }, and ! and worry
- # about indentation.
-
- s/^[ \t]+//;
- # a { to keep vi happy
- if ($_ eq '}') {
- $indent -= 4;
- next;
- }
- if (s/^!//) {
- $if = 'unless';
- $else = "$r else $l\n";
- } else {
- $if = 'if';
- $else = '';
- }
- if (s/^{//) { # a } to keep vi happy
- $indmod = 4;
- $redo = $_;
- $_ = '';
- $rmaybe = '';
- } else {
- $rmaybe = "\n$r";
- if ($addr2 || $addr1) {
- $space = ' ' x $shiftwidth;
- } else {
- $space = '';
- }
- $_ = &transmogrify();
- }
-
- # See if we can optimize to modifier form.
-
- if ($addr1) {
- if ($_ !~ /[\n{}]/ && $rmaybe && !$change &&
- $_ !~ / if / && $_ !~ / unless /) {
- s/;$/ $if $addr1;/;
- $_ = substr($_,$shiftwidth,1000);
- } else {
- $_ = "$if ($addr1) $l\n$change$_$rmaybe";
- }
- $change = '';
- next LINE;
- }
-} continue {
- @lines = split(/\n/,$_);
- for (@lines) {
- unless (s/^ *<<--//) {
- print BODY &tab;
- }
- print BODY $_, "\n";
- }
- $indent += $indmod;
- $indmod = 0;
- if ($redo) {
- $_ = $redo;
- $redo = '';
- redo LINE;
- }
-}
-if ($lastlinewaslabel++) {
- $indent += 4;
- print BODY &tab, ";\n";
- $indent -= 4;
-}
-
-if ($appendseen || $tseen || !$assumen) {
- $printit++ if $dseen || (!$assumen && !$assumep);
- print BODY &q(<<'EOT');
-: #ifdef SAWNEXT
-: }
-: continue {
-: #endif
-: #ifdef PRINTIT
-: #ifdef DSEEN
-: #ifdef ASSUMEP
-: print if $printit++;
-: #else
-: if ($printit)
-: { print; }
-: else
-: { $printit++ unless $nflag; }
-: #endif
-: #else
-: print if $printit;
-: #endif
-: #else
-: print;
-: #endif
-: #ifdef TSEEN
-: $tflag = 0;
-: #endif
-: #ifdef APPENDSEEN
-: 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$$")
- || &Die("Can't reopen temp file: $!\n");
- while (<BODY>) {
- print HEAD $_;
- }
- close HEAD;
-
- print &q(<<"EOT");
-: #!$bin/perl
-: eval 'exec $bin/perl -S \$0 \${1+"\$@"}'
-: if \$running_under_some_shell;
-:
-EOT
- open(BODY,"cc -E /tmp/sperl2$$.c |") ||
- &Die("Can't reopen temp file: $!\n");
- while (<BODY>) {
- /^# [0-9]/ && next;
- /^[ \t]*$/ && next;
- s/^<><>//;
- print;
- }
-}
-
-&Cleanup;
-exit;
-
-sub Cleanup {
- chdir "/tmp";
- unlink "sperl$$", "sperl2$$", "sperl2$$.c";
-}
-sub Die {
- &Cleanup;
- die $_[0];
-}
-sub tab {
- "\t" x ($indent / 8) . ' ' x ($indent % 8);
-}
-sub make_filehandle {
- local($_) = $_[0];
- local($fname) = $_;
- if (!$seen{$fname}) {
- $_ = "FH_" . $_ if /^\d/;
- s/[^a-zA-Z0-9]/_/g;
- s/^_*//;
- $_ = "\U$_";
- if ($fhseen{$_}) {
- for ($tmp = "a"; $fhseen{"$_$tmp"}; $a++) {}
- $_ .= $tmp;
- }
- $fhseen{$_} = 1;
- $opens .= &q(<<"EOT");
-: open($_, '>$fname') || die "Can't create $fname: \$!";
-EOT
- $seen{$fname} = $_;
- }
- $seen{$fname};
-}
-
-sub make_label {
- local($label) = @_;
- $label =~ s/[^a-zA-Z0-9]/_/g;
- if ($label =~ /^[0-9_]/) { $label = 'L' . $label; }
- $label = substr($label,0,8);
-
- # Could be a reserved word, so capitalize it.
- substr($label,0,1) =~ y/a-z/A-Z/
- if $label =~ /^[a-z]/;
-
- $label;
-}
-
-sub transmogrify {
- { # case
- if (/^d/) {
- $dseen++;
- chop($_ = &q(<<'EOT'));
-: <<--#ifdef PRINTIT
-: $printit = 0;
-: <<--#endif
-: next LINE;
-EOT
- $sawnext++;
- next;
- }
-
- if (/^n/) {
- chop($_ = &q(<<'EOT'));
-: <<--#ifdef PRINTIT
-: <<--#ifdef DSEEN
-: <<--#ifdef ASSUMEP
-: print if $printit++;
-: <<--#else
-: if ($printit)
-: { print; }
-: else
-: { $printit++ unless $nflag; }
-: <<--#endif
-: <<--#else
-: print if $printit;
-: <<--#endif
-: <<--#else
-: print;
-: <<--#endif
-: <<--#ifdef APPENDSEEN
-: if ($atext) {chop $atext; print $atext; $atext = '';}
-: <<--#endif
-: $_ = <>;
-: chop;
-: <<--#ifdef TSEEN
-: $tflag = 0;
-: <<--#endif
-EOT
- next;
- }
-
- if (/^a/) {
- $appendseen++;
- $command = $space . "\$atext .= <<'End_Of_Text';\n<<--";
- $lastline = 0;
- while (<>) {
- s/^[ \t]*//;
- s/^[\\]//;
- unless (s|\\$||) { $lastline = 1;}
- s/^([ \t]*\n)/<><>$1/;
- $command .= $_;
- $command .= '<<--';
- last if $lastline;
- }
- $_ = $command . "End_Of_Text";
- last;
- }
-
- if (/^[ic]/) {
- if (/^c/) { $change = 1; }
- $addr1 = 1 if $addr1 eq '';
- $addr1 = '$iter = (' . $addr1 . ')';
- $command = $space .
- " if (\$iter == 1) { print <<'End_Of_Text'; }\n<<--";
- $lastline = 0;
- while (<>) {
- s/^[ \t]*//;
- s/^[\\]//;
- unless (s/\\$//) { $lastline = 1;}
- s/'/\\'/g;
- s/^([ \t]*\n)/<><>$1/;
- $command .= $_;
- $command .= '<<--';
- last if $lastline;
- }
- $_ = $command . "End_Of_Text";
- if ($change) {
- $dseen++;
- $change = "$_\n";
- chop($_ = &q(<<"EOT"));
-: <<--#ifdef PRINTIT
-: $space\$printit = 0;
-: <<--#endif
-: ${space}next LINE;
-EOT
- $sawnext++;
- }
- last;
- }
-
- if (/^s/) {
- $delim = substr($_,1,1);
- $len = length($_);
- $repl = $end = 0;
- $inbracket = 0;
- for ($i = 2; $i < $len; $i++) {
- $c = substr($_,$i,1);
- if ($c eq $delim) {
- if ($inbracket) {
- substr($_, $i, 0) = '\\';
- $i++;
- $len++;
- }
- else {
- if ($repl) {
- $end = $i;
- last;
- } else {
- $repl = $i;
- }
- }
- }
- elsif ($c eq '\\') {
- $i++;
- if ($i >= $len) {
- $_ .= 'n';
- $_ .= <>;
- $len = length($_);
- $_ = substr($_,0,--$len);
- }
- elsif (substr($_,$i,1) =~ /^[n]$/) {
- ;
- }
- elsif (!$repl &&
- substr($_,$i,1) =~ /^[(){}\w]$/) {
- $i--;
- $len--;
- substr($_, $i, 1) = '';
- }
- elsif (!$repl &&
- substr($_,$i,1) =~ /^[<>]$/) {
- substr($_,$i,1) = 'b';
- }
- elsif ($repl && substr($_,$i,1) =~ /^\d$/) {
- substr($_,$i-1,1) = '$';
- }
- }
- elsif ($c eq '&' && $repl) {
- substr($_, $i, 0) = '$';
- $i++;
- $len++;
- }
- elsif ($c eq '$' && $repl) {
- substr($_, $i, 0) = '\\';
- $i++;
- $len++;
- }
- elsif ($c eq '[' && !$repl) {
- $i++ if substr($_,$i,1) eq '^';
- $i++ if substr($_,$i,1) eq ']';
- $inbracket = 1;
- }
- elsif ($c eq ']') {
- $inbracket = 0;
- }
- elsif ($c eq "\t") {
- substr($_, $i, 1) = '\\t';
- $i++;
- $len++;
- }
- elsif (!$repl && index("()+",$c) >= 0) {
- substr($_, $i, 0) = '\\';
- $i++;
- $len++;
- }
- }
- &Die("Malformed substitution at line $.\n")
- unless $end;
- $pat = substr($_, 0, $repl + 1);
- $repl = substr($_, $repl+1, $end-$repl-1);
- $end = substr($_, $end + 1, 1000);
- &simplify($pat);
- $dol = '$';
- $subst = "$pat$repl$delim";
- $cmd = '';
- while ($end) {
- if ($end =~ s/^g//) {
- $subst .= 'g';
- next;
- }
- if ($end =~ s/^p//) {
- $cmd .= ' && (print)';
- next;
- }
- if ($end =~ s/^w[ \t]*//) {
- $fh = &make_filehandle($end);
- $cmd .= " && (print $fh \$_)";
- $end = '';
- next;
- }
- &Die("Unrecognized substitution command".
- "($end) at line $.\n");
- }
- chop ($_ = &q(<<"EOT"));
-: <<--#ifdef TSEEN
-: $subst && \$tflag++$cmd;
-: <<--#else
-: $subst$cmd;
-: <<--#endif
-EOT
- next;
- }
-
- if (/^p/) {
- $_ = 'print;';
- next;
- }
-
- if (/^w/) {
- s/^w[ \t]*//;
- $fh = &make_filehandle($_);
- $_ = "print $fh \$_;";
- next;
- }
-
- if (/^r/) {
- $appendseen++;
- s/^r[ \t]*//;
- $file = $_;
- $_ = "\$atext .= `cat $file 2>/dev/null`;";
- next;
- }
-
- if (/^P/) {
- $_ = 'print $1 if /^(.*)/;';
- next;
- }
-
- if (/^D/) {
- chop($_ = &q(<<'EOT'));
-: s/^.*\n?//;
-: redo LINE if $_;
-: next LINE;
-EOT
- $sawnext++;
- next;
- }
-
- if (/^N/) {
- chop($_ = &q(<<'EOT'));
-: $_ .= "\n";
-: $len1 = length;
-: $_ .= <>;
-: chop if $len1 < length;
-: <<--#ifdef TSEEN
-: $tflag = 0;
-: <<--#endif
-EOT
- next;
- }
-
- if (/^h/) {
- $_ = '$hold = $_;';
- next;
- }
-
- if (/^H/) {
- $_ = '$hold .= "\n"; $hold .= $_;';
- next;
- }
-
- if (/^g/) {
- $_ = '$_ = $hold;';
- next;
- }
-
- if (/^G/) {
- $_ = '$_ .= "\n"; $_ .= $hold;';
- next;
- }
-
- if (/^x/) {
- $_ = '($_, $hold) = ($hold, $_);';
- next;
- }
-
- if (/^b$/) {
- $_ = 'next LINE;';
- $sawnext++;
- next;
- }
-
- if (/^b/) {
- s/^b[ \t]*//;
- $lab = &make_label($_);
- if ($lab eq $toplabel) {
- $_ = 'redo LINE;';
- } else {
- $_ = "goto $lab;";
- }
- next;
- }
-
- if (/^t$/) {
- $_ = 'next LINE if $tflag;';
- $sawnext++;
- $tseen++;
- next;
- }
-
- if (/^t/) {
- s/^t[ \t]*//;
- $lab = &make_label($_);
- $_ = q/if ($tflag) {$tflag = 0; /;
- if ($lab eq $toplabel) {
- $_ .= 'redo LINE;}';
- } else {
- $_ .= "goto $lab;}";
- }
- $tseen++;
- next;
- }
-
- if (/^y/) {
- s/abcdefghijklmnopqrstuvwxyz/a-z/g;
- s/ABCDEFGHIJKLMNOPQRSTUVWXYZ/A-Z/g;
- s/abcdef/a-f/g;
- s/ABCDEF/A-F/g;
- s/0123456789/0-9/g;
- s/01234567/0-7/g;
- $_ .= ';';
- }
-
- if (/^=/) {
- $_ = 'print $.;';
- next;
- }
-
- if (/^q/) {
- chop($_ = &q(<<'EOT'));
-: close(ARGV);
-: @ARGV = ();
-: next LINE;
-EOT
- $sawnext++;
- next;
- }
- } continue {
- if ($space) {
- s/^/$space/;
- s/(\n)(.)/$1$space$2/g;
- }
- last;
- }
- $_;
-}
-
-sub fetchpat {
- local($outer) = @_;
- local($addr) = $outer;
- local($inbracket);
- local($prefix,$delim,$ch);
-
- # Process pattern one potential delimiter at a time.
-
- DELIM: while (s#^([^\]+(|)[\\/]*)([]+(|)[\\/])##) {
- $prefix = $1;
- $delim = $2;
- if ($delim eq '\\') {
- s/(.)//;
- $ch = $1;
- $delim = '' if $ch =~ /^[(){}A-Za-mo-z]$/;
- $ch = 'b' if $ch =~ /^[<>]$/;
- $delim .= $ch;
- }
- elsif ($delim eq '[') {
- $inbracket = 1;
- s/^\^// && ($delim .= '^');
- s/^]// && ($delim .= ']');
- }
- elsif ($delim eq ']') {
- $inbracket = 0;
- }
- elsif ($inbracket || $delim ne $outer) {
- $delim = '\\' . $delim;
- }
- $addr .= $prefix;
- $addr .= $delim;
- if ($delim eq $outer && !$inbracket) {
- last DELIM;
- }
- }
- $addr =~ s/\t/\\t/g;
- &simplify($addr);
- $addr;
-}
-
-sub q {
- local($string) = @_;
- local($*) = 1;
- $string =~ s/^:\t?//g;
- $string;
-}
-
-sub simplify {
- $_[0] =~ s/_a-za-z0-9/\\w/ig;
- $_[0] =~ s/a-z_a-z0-9/\\w/ig;
- $_[0] =~ s/a-za-z_0-9/\\w/ig;
- $_[0] =~ s/a-za-z0-9_/\\w/ig;
- $_[0] =~ s/_0-9a-za-z/\\w/ig;
- $_[0] =~ s/0-9_a-za-z/\\w/ig;
- $_[0] =~ s/0-9a-z_a-z/\\w/ig;
- $_[0] =~ s/0-9a-za-z_/\\w/ig;
- $_[0] =~ s/\[\\w\]/\\w/g;
- $_[0] =~ s/\[^\\w\]/\\W/g;
- $_[0] =~ s/\[0-9\]/\\d/g;
- $_[0] =~ s/\[^0-9\]/\\D/g;
- $_[0] =~ s/\\d\\d\*/\\d+/g;
- $_[0] =~ s/\\D\\D\*/\\D+/g;
- $_[0] =~ s/\\w\\w\*/\\w+/g;
- $_[0] =~ s/\\t\\t\*/\\t+/g;
- $_[0] =~ s/(\[.[^]]*\])\1\*/$1+/g;
- $_[0] =~ s/([\w\s!@#%^&-=,:;'"])\1\*/$1+/g;
-}
-
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