diff options
Diffstat (limited to 'lib/perldb.pl')
-rw-r--r-- | lib/perldb.pl | 622 |
1 files changed, 314 insertions, 308 deletions
diff --git a/lib/perldb.pl b/lib/perldb.pl index 4c2f54d499..d7f05bfc82 100644 --- a/lib/perldb.pl +++ b/lib/perldb.pl @@ -1,6 +1,6 @@ package DB; -$header = '$Header: perldb.pl,v 3.0.1.6 91/01/11 18:08:58 lwall Locked $'; +$header = '$Header: perldb.pl,v 4.0 91/03/20 01:25:50 lwall Locked $'; # # This file is automatically included if you do perl -d. # It's probably not useful to include this yourself. @@ -10,6 +10,9 @@ $header = '$Header: perldb.pl,v 3.0.1.6 91/01/11 18:08:58 lwall Locked $'; # have a breakpoint. It also inserts a do 'perldb.pl' before the first line. # # $Log: perldb.pl,v $ +# Revision 4.0 91/03/20 01:25:50 lwall +# 4.0 baseline. +# # Revision 3.0.1.6 91/01/11 18:08:58 lwall # patch42: @_ couldn't be accessed from debugger # @@ -83,23 +86,25 @@ sub DB { print OUT $#stack . " levels deep in subroutine calls!\n" if $single & 4; $start = $line; + CMD: 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 " + { + $single = 0; + $signal = 0; + $cmd eq '' && exit 0; + chop($cmd); + $cmd =~ s/\\$// && do { + print OUT " cont: "; + $cmd .= &gets; + redo CMD; + }; + $cmd =~ /^q$/ && 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. @@ -145,316 +150,317 @@ p expr Same as \"print DB'OUT expr\" in current package. 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"; + next CMD; }; + $cmd =~ /^t$/ && do { + $trace = !$trace; + print OUT "Trace = ".($trace?"on":"off")."\n"; + next CMD; }; + $cmd =~ /^S$/ && do { + foreach $subname (sort(keys %sub)) { + print OUT $subname,"\n"; + } + next CMD; }; + $cmd =~ s/^X\b/V $package/; + $cmd =~ /^V$/ && do { + $cmd = 'V $package'; }; + $cmd =~ /^V\b\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"; } - } - 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/-.*/+/; + next CMD; }; + $cmd =~ /^f\b\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 CMD; } - $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; - 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}; + if (!defined $_main{'_<' . $file}) { + if (($try) = grep(m#^_<.*$file#, keys %_main)) { + $file = substr($try,2); + print "\n$file:\n"; } } - } - next; }; - $cmd =~ /^L$/ && do { - for ($i = 1; $i <= $max; $i++) { - if (defined $dbline{$i}) { + if (!defined $_main{'_<' . $file}) { + print OUT "There's no code here anything matching $file.\n"; + next CMD; + } + elsif ($file ne $filename) { + *dbline = "_<$file"; + $max = $#dbline; + $filename = $file; + $start = 1; + $cmd = "l"; + } }; + $cmd =~ /^l\b\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; + } }; + $cmd =~ /^w\b\s*(\d*)$/ && 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); }; + $cmd =~ /^l\b\s*(\d*)\+(\d*)$/ && do { + $start = $1 if $1; + $incr = $2; + $incr = $window - 1 unless $incr; + $cmd = 'l ' . $start . '-' . ($start + $incr); }; + $cmd =~ /^l\b\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; + for (; $i <= $end; $i++) { print OUT "$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 ''; + $start = $i; # remember in case they want more + $start = $max if $start > $max; + next CMD; }; + $cmd =~ /^D$/ && 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; }; + $cmd =~ /^L$/ && 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; }; + $cmd =~ /^b\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 =~ /^<\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) { + next CMD; }; + $cmd =~ /^b\b\s*(\d*)\s*(.*)/ && do { + $i = ($1?$1:$line); + $cond = $2 || '1'; if ($dbline[$i] == 0) { - print OUT "Line $i not breakable.\n"; - next; + print OUT "Line $i not breakable.\n"; + } else { + $dbline{$i} =~ s/^[^\0]*/$cond/; } - $dbline{$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'})) { - $_ = sprintf("%s",$_); + next CMD; }; + $cmd =~ /^d\b\s*(\d+)?/ && do { + $i = ($1?$1:$line); + $dbline{$i} =~ s/^[^\0]*//; + delete $dbline{$i} if $dbline{$i} eq ''; + next CMD; }; + $cmd =~ /^A$/ && do { + for ($i = 1; $i <= $max ; $i++) { + if (defined $dbline{$i}) { + $dbline{$i} =~ s/\0[^\0]*//; + delete $dbline{$i} if $dbline{$i} eq ''; } - 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; + } + next CMD; }; + $cmd =~ /^<\s*(.*)/ && do { + $pre = do action($1); + next CMD; }; + $cmd =~ /^>\s*(.*)/ && do { + $post = do action($1); + next CMD; }; + $cmd =~ /^a\b\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; }; + $cmd =~ /^n$/ && do { + $single = 2; + $laststep = $cmd; + last CMD; }; + $cmd =~ /^s$/ && do { + $single = 1; + $laststep = $cmd; + last CMD; }; + $cmd =~ /^c\b\s*(\d*)\s*$/ && do { + $i = $1; + if ($i) { + if ($dbline[$i] == 0) { + print OUT "Line $i not breakable.\n"; + next CMD; } + $dbline{$i} =~ s/(\0|$)/;9$1/; # add one-time-only b.p. } - $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; + for ($i=0; $i <= $#stack; ) { + $stack[$i++] &= ~1; } - $pat = $inpat; - } - $end = $start; - eval ' - for (;;) { - ++$start; - $start = 1 if ($start > $max); - last if ($start == $end); - if ($dbline[$start] =~ m'."\n$pat\n".'i) { - print OUT "$start:\t", $dbline[$start], "\n"; - last; + last CMD; }; + $cmd =~ /^r$/ && do { + $stack[$#stack] |= 2; + last CMD; }; + $cmd =~ /^T$/ && 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 $signal; } - } '; - print OUT "/$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; + for ($i=0; $i <= $#sub; $i++) { + last if $signal; + print OUT $sub[$i]; } - $pat = $inpat; - } - $end = $start; - eval ' - for (;;) { - --$start; - $start = $max if ($start <= 0); - last if ($start == $end); - if ($dbline[$start] =~ m'."\n$pat\n".'i) { - print OUT "$start:\t", $dbline[$start], "\n"; - last; + next CMD; }; + $cmd =~ /^\/(.*)$/ && do { + $inpat = $1; + $inpat =~ s:([^\\])/$:$1:; + if ($inpat ne "") { + eval '$inpat =~ m'."\n$inpat\n"; + if ($@ ne "") { + print OUT "$@"; + next CMD; + } + $pat = $inpat; } - } '; - print OUT "?$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"; + $end = $start; + eval ' + for (;;) { + ++$start; + $start = 1 if ($start > $max); + last if ($start == $end); + if ($dbline[$start] =~ m'."\n$pat\n".'i) { + print OUT "$start:\t", $dbline[$start], "\n"; + last; + } + } '; + print OUT "/$pat/: not found\n" if ($start == $end); + next CMD; }; + $cmd =~ /^\?(.*)$/ && do { + $inpat = $1; + $inpat =~ s:([^\\])\?$:$1:; + if ($inpat ne "") { + eval '$inpat =~ m'."\n$inpat\n"; + if ($@ ne "") { + print OUT "$@"; + next CMD; + } + $pat = $inpat; + } + $end = $start; + eval ' + for (;;) { + --$start; + $start = $max if ($start <= 0); + last if ($start == $end); + if ($dbline[$start] =~ m'."\n$pat\n".'i) { + print OUT "$start:\t", $dbline[$start], "\n"; + last; + } + } '; + print OUT "?$pat?: not found\n" if ($start == $end); + next CMD; }; + $cmd =~ /^!+\s*(-)?(\d+)?$/ && 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; }; + $cmd =~ /^!(.+)$/ && 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; + } + $cmd = $hist[$i] . "\n"; + print OUT $cmd; + redo CMD; }; + $cmd =~ /^H\b\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; }; + $cmd =~ s/^p( .*)?$/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; }; + next CMD; }; + } $evalarg = $cmd; &eval; print OUT "\n"; } |