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-rw-r--r--emacs/perldb.pl531
1 files changed, 0 insertions, 531 deletions
diff --git a/emacs/perldb.pl b/emacs/perldb.pl
deleted file mode 100644
index 958e58d874..0000000000
--- a/emacs/perldb.pl
+++ /dev/null
@@ -1,531 +0,0 @@
-package DB;
-
-# modified Perl debugger, to be run from Emacs in perldb-mode
-# Ray Lischner (uunet!mntgfx!lisch) as of 5 Nov 1990
-
-$header = '$RCSfile: perldb.pl,v $$Revision: 4.1 $$Date: 92/08/07 17:20:59 $';
-#
-# This file is automatically included if you do perl -d.
-# It's probably not useful to include this yourself.
-#
-# Perl supplies the values for @line and %sub. It effectively inserts
-# a do DB'DB(<linenum>); in front of every place that can
-# have a breakpoint. It also inserts a do 'perldb.pl' before the first line.
-#
-# $Log: perldb.pl,v $
-
-open(IN, "</dev/tty") || open(IN, "<&STDIN"); # so we don't dingle stdin
-open(OUT,">/dev/tty") || open(OUT, ">&STDOUT"); # so we don't dongle stdout
-select(OUT);
-$| = 1; # for DB'OUT
-select(STDOUT);
-$| = 1; # for real STDOUT
-$sub = '';
-
-# Is Perl being run from Emacs?
-$emacs = $main'ARGV[$[] eq '-emacs';
-shift(@main'ARGV) if $emacs;
-
-$header =~ s/.Header: ([^,]+),v(\s+\S+\s+\S+).*$/$1$2/;
-print OUT "\nLoading DB routines from $header\n\nEnter h for help.\n\n";
-
-sub DB {
- &save;
- ($package, $filename, $line) = caller;
- $usercontext = '($@, $!, $[, $,, $/, $\) = @saved;' .
- "package $package;"; # this won't let them modify, alas
- local(*dbline) = "_<$filename";
- $max = $#dbline;
- if (($stop,$action) = split(/\0/,$dbline{$line})) {
- if ($stop eq '1') {
- $signal |= 1;
- }
- else {
- $evalarg = "\$DB'signal |= do {$stop;}"; &eval;
- $dbline{$line} =~ s/;9($|\0)/$1/;
- }
- }
- if ($single || $trace || $signal) {
- if ($emacs) {
- print OUT "\032\032$filename:$line:0\n";
- } else {
- print OUT "$package'" unless $sub =~ /'/;
- print OUT "$sub($filename:$line):\t",$dbline[$line];
- for ($i = $line + 1; $i <= $max && $dbline[$i] == 0; ++$i) {
- last if $dbline[$i] =~ /^\s*(}|#|\n)/;
- print OUT "$sub($filename:$i):\t",$dbline[$i];
- }
- }
- }
- $evalarg = $action, &eval if $action;
- if ($single || $signal) {
- $evalarg = $pre, &eval if $pre;
- print OUT $#stack . " levels deep in subroutine calls!\n"
- if $single & 4;
- $start = $line;
- while ((print OUT " DB<", $#hist+1, "> "), $cmd=&gets) {
- $single = 0;
- $signal = 0;
- $cmd eq '' && exit 0;
- chop($cmd);
- $cmd =~ s/\\$// && do {
- print OUT " cont: ";
- $cmd .= &gets;
- redo;
- };
- $cmd =~ /^q$/ && exit 0;
- $cmd =~ /^$/ && ($cmd = $laststep);
- push(@hist,$cmd) if length($cmd) > 1;
- ($i) = split(/\s+/,$cmd);
- eval "\$cmd =~ $alias{$i}", print OUT $@ if $alias{$i};
- $cmd =~ /^h$/ && do {
- print OUT "
-T Stack trace.
-s Single step.
-n Next, steps over subroutine calls.
-r Return from current subroutine.
-c [line] Continue; optionally inserts a one-time-only breakpoint
- at the specified line.
-<CR> Repeat last n or s.
-l min+incr List incr+1 lines starting at min.
-l min-max List lines.
-l line List line;
-l List next window.
-- List previous window.
-w line List window around line.
-l subname List subroutine.
-f filename Switch to filename.
-/pattern/ Search forwards for pattern; final / is optional.
-?pattern? Search backwards for pattern.
-L List breakpoints and actions.
-S List subroutine names.
-t Toggle trace mode.
-b [line] [condition]
- Set breakpoint; line defaults to the current execution line;
- condition breaks if it evaluates to true, defaults to \'1\'.
-b subname [condition]
- Set breakpoint at first line of subroutine.
-d [line] Delete breakpoint.
-D Delete all breakpoints.
-a [line] command
- Set an action to be done before the line is executed.
- Sequence is: check for breakpoint, print line if necessary,
- do action, prompt user if breakpoint or step, evaluate line.
-A Delete all actions.
-V [pkg [vars]] List some (default all) variables in package (default current).
-X [vars] Same as \"V currentpackage [vars]\".
-< command Define command before prompt.
-| command Define command after prompt.
-! number Redo command (default previous command).
-! -number Redo number\'th to last command.
-H -number Display last number commands (default all).
-q or ^D Quit.
-p expr Same as \"print DB'OUT expr\" in current package.
-= [alias value] Define a command alias, or list current aliases.
-command Execute as a perl statement in current package.
-
-";
- next; };
- $cmd =~ /^t$/ && do {
- $trace = !$trace;
- print OUT "Trace = ".($trace?"on":"off")."\n";
- next; };
- $cmd =~ /^S$/ && do {
- foreach $subname (sort(keys %sub)) {
- print OUT $subname,"\n";
- }
- next; };
- $cmd =~ s/^X\b/V $package/;
- $cmd =~ /^V$/ && do {
- $cmd = 'V $package'; };
- $cmd =~ /^V\s*(\S+)\s*(.*)/ && do {
- $packname = $1;
- @vars = split(' ',$2);
- do 'dumpvar.pl' unless defined &main'dumpvar;
- if (defined &main'dumpvar) {
- &main'dumpvar($packname,@vars);
- }
- else {
- print DB'OUT "dumpvar.pl not available.\n";
- }
- next; };
- $cmd =~ /^f\s*(.*)/ && do {
- $file = $1;
- if (!$file) {
- print OUT "The old f command is now the r command.\n";
- print OUT "The new f command switches filenames.\n";
- next;
- }
- if (!defined $_main{'_<' . $file}) {
- if (($try) = grep(m#^_<.*$file#, keys %_main)) {
- $file = substr($try,2);
- print "\n$file:\n";
- }
- }
- if (!defined $_main{'_<' . $file}) {
- print OUT "There's no code here anything matching $file.\n";
- next;
- }
- elsif ($file ne $filename) {
- *dbline = "_<$file";
- $max = $#dbline;
- $filename = $file;
- $start = 1;
- $cmd = "l";
- } };
- $cmd =~ /^l\s*(['A-Za-z_]['\w]*)/ && do {
- $subname = $1;
- $subname = "main'" . $subname unless $subname =~ /'/;
- $subname = "main" . $subname if substr($subname,0,1) eq "'";
- ($file,$subrange) = split(/:/,$sub{$subname});
- if ($file ne $filename) {
- *dbline = "_<$file";
- $max = $#dbline;
- $filename = $file;
- }
- if ($subrange) {
- if (eval($subrange) < -$window) {
- $subrange =~ s/-.*/+/;
- }
- $cmd = "l $subrange";
- } else {
- print OUT "Subroutine $1 not found.\n";
- next;
- } };
- $cmd =~ /^w\s*(\d*)$/ && do {
- $incr = $window - 1;
- $start = $1 if $1;
- $start -= $preview;
- $cmd = 'l ' . $start . '-' . ($start + $incr); };
- $cmd =~ /^-$/ && do {
- $incr = $window - 1;
- $cmd = 'l ' . ($start-$window*2) . '+'; };
- $cmd =~ /^l$/ && do {
- $incr = $window - 1;
- $cmd = 'l ' . $start . '-' . ($start + $incr); };
- $cmd =~ /^l\s*(\d*)\+(\d*)$/ && do {
- $start = $1 if $1;
- $incr = $2;
- $incr = $window - 1 unless $incr;
- $cmd = 'l ' . $start . '-' . ($start + $incr); };
- $cmd =~ /^l\s*(([\d\$\.]+)([-,]([\d\$\.]+))?)?/ && do {
- $end = (!$2) ? $max : ($4 ? $4 : $2);
- $end = $max if $end > $max;
- $i = $2;
- $i = $line if $i eq '.';
- $i = 1 if $i < 1;
- if ($emacs) {
- print OUT "\032\032$filename:$i:0\n";
- $i = $end;
- } else {
- for (; $i <= $end; $i++) {
- print OUT "$i:\t", $dbline[$i];
- last if $signal;
- }
- }
- $start = $i; # remember in case they want more
- $start = $max if $start > $max;
- next; };
- $cmd =~ /^D$/ && do {
- print OUT "Deleting all breakpoints...\n";
- for ($i = 1; $i <= $max ; $i++) {
- if (defined $dbline{$i}) {
- $dbline{$i} =~ s/^[^\0]+//;
- if ($dbline{$i} =~ s/^\0?$//) {
- delete $dbline{$i};
- }
- }
- }
- next; };
- $cmd =~ /^L$/ && do {
- for ($i = 1; $i <= $max; $i++) {
- if (defined $dbline{$i}) {
- print OUT "$i:\t", $dbline[$i];
- ($stop,$action) = split(/\0/, $dbline{$i});
- print OUT " break if (", $stop, ")\n"
- if $stop;
- print OUT " action: ", $action, "\n"
- if $action;
- last if $signal;
- }
- }
- next; };
- $cmd =~ /^b\s*(['A-Za-z_]['\w]*)\s*(.*)/ && do {
- $subname = $1;
- $cond = $2 || '1';
- $subname = "$package'" . $subname unless $subname =~ /'/;
- $subname = "main" . $subname if substr($subname,0,1) eq "'";
- ($filename,$i) = split(/[:-]/, $sub{$subname});
- if ($i) {
- *dbline = "_<$filename";
- ++$i while $dbline[$i] == 0 && $i < $#dbline;
- $dbline{$i} =~ s/^[^\0]*/$cond/;
- } else {
- print OUT "Subroutine $subname not found.\n";
- }
- next; };
- $cmd =~ /^b\s*(\d*)\s*(.*)/ && do {
- $i = ($1?$1:$line);
- $cond = $2 || '1';
- if ($dbline[$i] == 0) {
- print OUT "Line $i not breakable.\n";
- } else {
- $dbline{$i} =~ s/^[^\0]*/$cond/;
- }
- next; };
- $cmd =~ /^d\s*(\d+)?/ && do {
- $i = ($1?$1:$line);
- $dbline{$i} =~ s/^[^\0]*//;
- delete $dbline{$i} if $dbline{$i} eq '';
- next; };
- $cmd =~ /^A$/ && do {
- for ($i = 1; $i <= $max ; $i++) {
- if (defined $dbline{$i}) {
- $dbline{$i} =~ s/\0[^\0]*//;
- delete $dbline{$i} if $dbline{$i} eq '';
- }
- }
- next; };
- $cmd =~ /^<\s*(.*)/ && do {
- $pre = do action($1);
- next; };
- $cmd =~ /^>\s*(.*)/ && do {
- $post = do action($1);
- next; };
- $cmd =~ /^a\s*(\d+)(\s+(.*))?/ && do {
- $i = $1;
- if ($dbline[$i] == 0) {
- print OUT "Line $i may not have an action.\n";
- } else {
- $dbline{$i} =~ s/\0[^\0]*//;
- $dbline{$i} .= "\0" . do action($3);
- }
- next; };
- $cmd =~ /^n$/ && do {
- $single = 2;
- $laststep = $cmd;
- last; };
- $cmd =~ /^s$/ && do {
- $single = 1;
- $laststep = $cmd;
- last; };
- $cmd =~ /^c\s*(\d*)\s*$/ && do {
- $i = $1;
- if ($i) {
- if ($dbline[$i] == 0) {
- print OUT "Line $i not breakable.\n";
- next;
- }
- $dbline{$i} =~ s/(\0|$)/;9$1/; # add one-time-only b.p.
- }
- for ($i=0; $i <= $#stack; ) {
- $stack[$i++] &= ~1;
- }
- last; };
- $cmd =~ /^r$/ && do {
- $stack[$#stack] |= 2;
- last; };
- $cmd =~ /^T$/ && do {
- local($p,$f,$l,$s,$h,$a,@a,@sub);
- for ($i = 1; ($p,$f,$l,$s,$h,$w) = caller($i); $i++) {
- @a = @args;
- for (@a) {
- if (/^StB\000/ && length($_) == length($_main{'_main'})) {
- $_ = sprintf("%s",$_);
- }
- else {
- s/'/\\'/g;
- s/([^\0]*)/'$1'/ unless /^-?[\d.]+$/;
- s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg;
- s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg;
- }
- }
- $w = $w ? '@ = ' : '$ = ';
- $a = $h ? '(' . join(', ', @a) . ')' : '';
- push(@sub, "$w&$s$a from file $f line $l\n");
- last if $signal;
- }
- for ($i=0; $i <= $#sub; $i++) {
- last if $signal;
- print OUT $sub[$i];
- }
- next; };
- $cmd =~ /^\/(.*)$/ && do {
- $inpat = $1;
- $inpat =~ s:([^\\])/$:$1:;
- if ($inpat ne "") {
- eval '$inpat =~ m'."\n$inpat\n";
- if ($@ ne "") {
- print OUT "$@";
- next;
- }
- $pat = $inpat;
- }
- $end = $start;
- eval '
- for (;;) {
- ++$start;
- $start = 1 if ($start > $max);
- last if ($start == $end);
- if ($dbline[$start] =~ m'."\n$pat\n".'i) {
- if ($emacs) {
- print OUT "\032\032$filename:$start:0\n";
- } else {
- print OUT "$start:\t", $dbline[$start], "\n";
- }
- last;
- }
- } ';
- print OUT "/$pat/: not found\n" if ($start == $end);
- next; };
- $cmd =~ /^\?(.*)$/ && do {
- $inpat = $1;
- $inpat =~ s:([^\\])\?$:$1:;
- if ($inpat ne "") {
- eval '$inpat =~ m'."\n$inpat\n";
- if ($@ ne "") {
- print OUT "$@";
- next;
- }
- $pat = $inpat;
- }
- $end = $start;
- eval '
- for (;;) {
- --$start;
- $start = $max if ($start <= 0);
- last if ($start == $end);
- if ($dbline[$start] =~ m'."\n$pat\n".'i) {
- if ($emacs) {
- print OUT "\032\032$filename:$start:0\n";
- } else {
- print OUT "$start:\t", $dbline[$start], "\n";
- }
- last;
- }
- } ';
- print OUT "?$pat?: not found\n" if ($start == $end);
- next; };
- $cmd =~ /^!+\s*(-)?(\d+)?$/ && do {
- pop(@hist) if length($cmd) > 1;
- $i = ($1?($#hist-($2?$2:1)):($2?$2:$#hist));
- $cmd = $hist[$i] . "\n";
- print OUT $cmd;
- redo; };
- $cmd =~ /^!(.+)$/ && do {
- $pat = "^$1";
- pop(@hist) if length($cmd) > 1;
- for ($i = $#hist; $i; --$i) {
- last if $hist[$i] =~ $pat;
- }
- if (!$i) {
- print OUT "No such command!\n\n";
- next;
- }
- $cmd = $hist[$i] . "\n";
- print OUT $cmd;
- redo; };
- $cmd =~ /^H\s*(-(\d+))?/ && do {
- $end = $2?($#hist-$2):0;
- $hist = 0 if $hist < 0;
- for ($i=$#hist; $i>$end; $i--) {
- print OUT "$i: ",$hist[$i],"\n"
- unless $hist[$i] =~ /^.?$/;
- };
- next; };
- $cmd =~ s/^p( .*)?$/print DB'OUT$1/;
- $cmd =~ /^=/ && do {
- if (local($k,$v) = ($cmd =~ /^=\s*(\S+)\s+(.*)/)) {
- $alias{$k}="s~$k~$v~";
- print OUT "$k = $v\n";
- } elsif ($cmd =~ /^=\s*$/) {
- foreach $k (sort keys(%alias)) {
- if (($v = $alias{$k}) =~ s~^s\~$k\~(.*)\~$~$1~) {
- print OUT "$k = $v\n";
- } else {
- print OUT "$k\t$alias{$k}\n";
- };
- };
- };
- next; };
- $evalarg = $cmd; &eval;
- print OUT "\n";
- }
- if ($post) {
- $evalarg = $post; &eval;
- }
- }
- ($@, $!, $[, $,, $/, $\) = @saved;
-}
-
-sub save {
- @saved = ($@, $!, $[, $,, $/, $\);
- $[ = 0; $, = ""; $/ = "\n"; $\ = "";
-}
-
-# The following takes its argument via $evalarg to preserve current @_
-
-sub eval {
- eval "$usercontext $evalarg; &DB'save";
- print OUT $@;
-}
-
-sub action {
- local($action) = @_;
- while ($action =~ s/\\$//) {
- print OUT "+ ";
- $action .= &gets;
- }
- $action;
-}
-
-sub gets {
- local($.);
- <IN>;
-}
-
-sub catch {
- $signal = 1;
-}
-
-sub sub {
- push(@stack, $single);
- $single &= 1;
- $single |= 4 if $#stack == $deep;
- if (wantarray) {
- @i = &$sub;
- $single |= pop(@stack);
- @i;
- }
- else {
- $i = &$sub;
- $single |= pop(@stack);
- $i;
- }
-}
-
-$single = 1; # so it stops on first executable statement
-@hist = ('?');
-$SIG{'INT'} = "DB'catch";
-$deep = 100; # warning if stack gets this deep
-$window = 10;
-$preview = 3;
-
-@stack = (0);
-@ARGS = @ARGV;
-for (@args) {
- s/'/\\'/g;
- s/(.*)/'$1'/ unless /^-?[\d.]+$/;
-}
-
-if (-f '.perldb') {
- do './.perldb';
-}
-elsif (-f "$ENV{'LOGDIR'}/.perldb") {
- do "$ENV{'LOGDIR'}/.perldb";
-}
-elsif (-f "$ENV{'HOME'}/.perldb") {
- do "$ENV{'HOME'}/.perldb";
-}
-
-1;
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