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Diffstat (limited to 'os2/s2p.cmd')
-rw-r--r--os2/s2p.cmd676
1 files changed, 676 insertions, 0 deletions
diff --git a/os2/s2p.cmd b/os2/s2p.cmd
new file mode 100644
index 0000000000..e7dac871ea
--- /dev/null
+++ b/os2/s2p.cmd
@@ -0,0 +1,676 @@
+extproc perl -Sx
+#!perl
+
+$bin = 'c:/bin';
+
+# $Header: s2p.cmd,v 4.0 91/03/20 01:37:09 lwall Locked $
+#
+# $Log: s2p.cmd,v $
+# Revision 4.0 91/03/20 01:37:09 lwall
+# 4.0 baseline.
+#
+# Revision 3.0.1.6 90/10/20 02:21:43 lwall
+# patch37: changed some ". config.sh" to ". ./config.sh"
+#
+# Revision 3.0.1.5 90/10/16 11:32:40 lwall
+# patch29: s2p modernized
+#
+# Revision 3.0.1.4 90/08/09 05:50:43 lwall
+# patch19: s2p didn't translate \n right
+#
+# Revision 3.0.1.3 90/03/01 10:31:21 lwall
+# patch9: s2p didn't handle \< and \>
+#
+# Revision 3.0.1.2 89/11/17 15:51:27 lwall
+# patch5: in s2p, line labels without a subsequent statement were done wrong
+# patch5: s2p left residue in /tmp
+#
+# Revision 3.0.1.1 89/11/11 05:08:25 lwall
+# patch2: in s2p, + within patterns needed backslashing
+# patch2: s2p was printing out some debugging info to the output file
+#
+# Revision 3.0 89/10/18 15:35:02 lwall
+# 3.0 baseline
+#
+# Revision 2.0.1.1 88/07/11 23:26:23 root
+# patch2: s2p didn't put a proper prologue on output script
+#
+# Revision 2.0 88/06/05 00:15:55 root
+# Baseline version 2.0.
+#
+#
+
+$indent = 4;
+$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,">sperl$$") ||
+ &Die("Can't open temp file: $!\n");
+}
+
+if (!$assumen && !$assumep) {
+ print BODY <<'EOT';
+while ($ARGV[0] =~ /^-/) {
+ $_ = shift;
+ last if /^--/;
+ if (/^-n/) {
+ $nflag++;
+ next;
+ }
+ die "I don't recognize this switch: $_\\n";
+}
+
+EOT
+}
+
+print BODY <<'EOT';
+
+#ifdef PRINTIT
+#ifdef ASSUMEP
+$printit++;
+#else
+$printit++ unless $nflag;
+#endif
+#endif
+LINE: while (<>) {
+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;
+ }
+ $_ = "$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";
+ }
+ 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");
+ }
+ $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;
+}
+
+print BODY "}\n";
+if ($appendseen || $tseen || !$assumen) {
+ $printit++ if $dseen || (!$assumen && !$assumep);
+ print BODY <<'EOT';
+
+continue {
+#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 = '';
+#endif
+#ifdef APPENDSEEN
+ if ($atext) { print $atext; $atext = ''; }
+#endif
+}
+EOT
+}
+
+close BODY;
+
+unless ($debug) {
+ open(HEAD,">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 ($assumep);
+ if ($opens) {print HEAD "$opens\n";}
+ open(BODY,"sperl$$")
+ || &Die("Can't reopen temp file: $!\n");
+ while (<BODY>) {
+ print HEAD $_;
+ }
+ close HEAD;
+
+ print <<"EOT";
+#!$bin/perl
+eval 'exec $bin/perl -S \$0 \$*'
+ if \$running_under_some_shell;
+
+EOT
+ open(BODY,"cc -E sperl2$$.c |") ||
+ &Die("Can't reopen temp file: $!\n");
+ while (<BODY>) {
+ /^# [0-9]/ && next;
+ /^[ \t]*$/ && next;
+ s/^<><>//;
+ print;
+ }
+}
+
+&Cleanup;
+exit;
+
+sub Cleanup {
+ 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) = $_;
+ s/[^a-zA-Z]/_/g;
+ s/^_*//;
+ substr($_,0,1) =~ y/a-z/A-Z/ if /^[a-z]/;
+ if (!$seen{$_}) {
+ $opens .= <<"EOT";
+open($_,'>$fname') || die "Can't create $fname";
+EOT
+ }
+ $seen{$_} = $_;
+}
+
+sub make_label {
+ local($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/) {
+ $dseen++;
+ chop($_ = <<'EOT');
+<<--#ifdef PRINTIT
+$printit = '';
+<<--#endif
+next LINE;
+EOT
+ next;
+ }
+
+ if (/^n/) {
+ chop($_ = <<'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) {print $atext; $atext = '';}
+<<--#endif
+$_ = <>;
+<<--#ifdef TSEEN
+$tflag = '';
+<<--#endif
+EOT
+ next;
+ }
+
+ if (/^a/) {
+ $appendseen++;
+ $command = $space . '$atext .=' . "\n<<--'";
+ $lastline = 0;
+ while (<>) {
+ s/^[ \t]*//;
+ s/^[\\]//;
+ unless (s|\\$||) { $lastline = 1;}
+ s/'/\\'/g;
+ s/^([ \t]*\n)/<><>$1/;
+ $command .= $_;
+ $command .= '<<--';
+ last if $lastline;
+ }
+ $_ = $command . "';";
+ last;
+ }
+
+ if (/^[ic]/) {
+ if (/^c/) { $change = 1; }
+ $addr1 = '$iter = (' . $addr1 . ')';
+ $command = $space . 'if ($iter == 1) { print'
+ . "\n<<--'";
+ $lastline = 0;
+ while (<>) {
+ s/^[ \t]*//;
+ s/^[\\]//;
+ unless (s/\\$//) { $lastline = 1;}
+ s/'/\\'/g;
+ s/^([ \t]*\n)/<><>$1/;
+ $command .= $_;
+ $command .= '<<--';
+ last if $lastline;
+ }
+ $_ = $command . "';}";
+ if ($change) {
+ $dseen++;
+ $change = "$_\n";
+ chop($_ = <<"EOT");
+<<--#ifdef PRINTIT
+$space\$printit = '';
+<<--#endif
+${space}next LINE;
+EOT
+ }
+ 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) =~ /^[<>]$/) {
+ substr($_,$i,1) = 'b';
+ }
+ }
+ elsif ($c eq '[' && !$repl) {
+ $i++ if substr($_,$i,1) eq '^';
+ $i++ if substr($_,$i,1) eq ']';
+ $inbracket = 1;
+ }
+ elsif ($c eq ']') {
+ $inbracket = 0;
+ }
+ elsif (!$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);
+ $dol = '$';
+ $repl =~ s/\$/\\$/;
+ $repl =~ s'&'$&'g;
+ $repl =~ s/[\\]([0-9])/$dol$1/g;
+ $subst = "$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 $.\n");
+ }
+ chop ($_ = <<"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 $1 if /(^.*\n)/;';
+ next;
+ }
+
+ if (/^D/) {
+ chop($_ = <<'EOT');
+s/^.*\n//;
+redo LINE if $_;
+next LINE;
+EOT
+ next;
+ }
+
+ if (/^N/) {
+ chop($_ = <<'EOT');
+$_ .= <>;
+<<--#ifdef TSEEN
+$tflag = '';
+<<--#endif
+EOT
+ next;
+ }
+
+ if (/^h/) {
+ $_ = '$hold = $_;';
+ next;
+ }
+
+ if (/^H/) {
+ $_ = '$hold .= $_ ? $_ : "\n";';
+ next;
+ }
+
+ if (/^g/) {
+ $_ = '$_ = $hold;';
+ next;
+ }
+
+ if (/^G/) {
+ $_ = '$_ .= $hold ? $hold : "\n";';
+ next;
+ }
+
+ if (/^x/) {
+ $_ = '($_, $hold) = ($hold, $_);';
+ next;
+ }
+
+ if (/^b$/) {
+ $_ = 'next LINE;';
+ 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;';
+ $tseen++;
+ next;
+ }
+
+ if (/^t/) {
+ s/^t[ \t]*//;
+ $lab = &make_label($_);
+ $_ = q/if ($tflag) {$tflag = ''; /;
+ if ($lab eq $toplabel) {
+ $_ .= 'redo LINE;}';
+ } else {
+ $_ .= "goto $lab;}";
+ }
+ $tseen++;
+ next;
+ }
+
+ if (/^=/) {
+ $_ = 'print "$.\n";';
+ next;
+ }
+
+ if (/^q/) {
+ chop($_ = <<'EOT');
+close(ARGV);
+@ARGV = ();
+next LINE;
+EOT
+ next;
+ }
+ } continue {
+ if ($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;
+}
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