Commit | Line | Data |
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a687059c LW |
1 | package DB; |
2 | ||
54d04a52 | 3 | # Debugger for Perl 5.00x; perl5db.pl patch level: |
d338d6fe | 4 | |
f8b5b99c | 5 | $VERSION = 1.0402; |
43aed9ee | 6 | $header = "perl5db.pl version $VERSION"; |
d338d6fe | 7 | |
8 | # Enhanced by ilya@math.ohio-state.edu (Ilya Zakharevich) | |
9 | # Latest version available: ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl | |
10 | ||
11 | # modified Perl debugger, to be run from Emacs in perldb-mode | |
12 | # Ray Lischner (uunet!mntgfx!lisch) as of 5 Nov 1990 | |
13 | # Johan Vromans -- upgrade to 4.0 pl 10 | |
14 | # Ilya Zakharevich -- patches after 5.001 (and some before ;-) | |
15 | ||
16 | # | |
17 | # This file is automatically included if you do perl -d. | |
18 | # It's probably not useful to include this yourself. | |
19 | # | |
36477c24 | 20 | # Perl supplies the values for %sub. It effectively inserts |
21 | # a &DB'DB(); in front of every place that can have a | |
d338d6fe | 22 | # breakpoint. Instead of a subroutine call it calls &DB::sub with |
23 | # $DB::sub being the called subroutine. It also inserts a BEGIN | |
24 | # {require 'perl5db.pl'} before the first line. | |
25 | # | |
55497cff | 26 | # After each `require'd file is compiled, but before it is executed, a |
477ea2b1 | 27 | # call to DB::postponed($main::{'_<'.$filename}) is emulated. Here the |
55497cff | 28 | # $filename is the expanded name of the `require'd file (as found as |
29 | # value of %INC). | |
30 | # | |
31 | # Additional services from Perl interpreter: | |
32 | # | |
33 | # if caller() is called from the package DB, it provides some | |
34 | # additional data. | |
35 | # | |
477ea2b1 | 36 | # The array @{$main::{'_<'.$filename} is the line-by-line contents of |
55497cff | 37 | # $filename. |
38 | # | |
477ea2b1 | 39 | # The hash %{'_<'.$filename} contains breakpoints and action (it is |
55497cff | 40 | # keyed by line number), and individual entries are settable (as |
41 | # opposed to the whole hash). Only true/false is important to the | |
42 | # interpreter, though the values used by perl5db.pl have the form | |
43 | # "$break_condition\0$action". Values are magical in numeric context. | |
44 | # | |
477ea2b1 | 45 | # The scalar ${'_<'.$filename} contains "_<$filename". |
55497cff | 46 | # |
d338d6fe | 47 | # Note that no subroutine call is possible until &DB::sub is defined |
36477c24 | 48 | # (for subroutines defined outside of the package DB). In fact the same is |
d338d6fe | 49 | # true if $deep is not defined. |
50 | # | |
51 | # $Log: perldb.pl,v $ | |
52 | ||
53 | # | |
54 | # At start reads $rcfile that may set important options. This file | |
55 | # may define a subroutine &afterinit that will be executed after the | |
56 | # debugger is initialized. | |
57 | # | |
58 | # After $rcfile is read reads environment variable PERLDB_OPTS and parses | |
59 | # it as a rest of `O ...' line in debugger prompt. | |
60 | # | |
61 | # The options that can be specified only at startup: | |
62 | # [To set in $rcfile, call &parse_options("optionName=new_value").] | |
63 | # | |
64 | # TTY - the TTY to use for debugging i/o. | |
65 | # | |
66 | # noTTY - if set, goes in NonStop mode. On interrupt if TTY is not set | |
67 | # uses the value of noTTY or "/tmp/perldbtty$$" to find TTY using | |
68 | # Term::Rendezvous. Current variant is to have the name of TTY in this | |
69 | # file. | |
70 | # | |
71 | # ReadLine - If false, dummy ReadLine is used, so you can debug | |
72 | # ReadLine applications. | |
73 | # | |
74 | # NonStop - if true, no i/o is performed until interrupt. | |
75 | # | |
76 | # LineInfo - file or pipe to print line number info to. If it is a | |
77 | # pipe, a short "emacs like" message is used. | |
78 | # | |
79 | # Example $rcfile: (delete leading hashes!) | |
80 | # | |
81 | # &parse_options("NonStop=1 LineInfo=db.out"); | |
82 | # sub afterinit { $trace = 1; } | |
83 | # | |
84 | # The script will run without human intervention, putting trace | |
85 | # information into db.out. (If you interrupt it, you would better | |
86 | # reset LineInfo to something "interactive"!) | |
87 | # | |
ee971a18 | 88 | ################################################################## |
89 | # Changelog: | |
90 | ||
91 | # A lot of things changed after 0.94. First of all, core now informs | |
92 | # debugger about entry into XSUBs, overloaded operators, tied operations, | |
93 | # BEGIN and END. Handy with `O f=2'. | |
94 | ||
95 | # This can make debugger a little bit too verbose, please be patient | |
96 | # and report your problems promptly. | |
97 | ||
98 | # Now the option frame has 3 values: 0,1,2. | |
99 | ||
100 | # Note that if DESTROY returns a reference to the object (or object), | |
101 | # the deletion of data may be postponed until the next function call, | |
102 | # due to the need to examine the return value. | |
103 | ||
55497cff | 104 | # Changes: 0.95: `v' command shows versions. |
105 | # Changes: 0.96: `v' command shows version of readline. | |
106 | # primitive completion works (dynamic variables, subs for `b' and `l', | |
107 | # options). Can `p %var' | |
108 | # Better help (`h <' now works). New commands <<, >>, {, {{. | |
109 | # {dump|print}_trace() coded (to be able to do it from <<cmd). | |
110 | # `c sub' documented. | |
111 | # At last enough magic combined to stop after the end of debuggee. | |
112 | # !! should work now (thanks to Emacs bracket matching an extra | |
113 | # `]' in a regexp is caught). | |
114 | # `L', `D' and `A' span files now (as documented). | |
115 | # Breakpoints in `require'd code are possible (used in `R'). | |
116 | # Some additional words on internal work of debugger. | |
117 | # `b load filename' implemented. | |
118 | # `b postpone subr' implemented. | |
119 | # now only `q' exits debugger (overwriteable on $inhibit_exit). | |
120 | # When restarting debugger breakpoints/actions persist. | |
121 | # Buglet: When restarting debugger only one breakpoint/action per | |
122 | # autoloaded function persists. | |
36477c24 | 123 | # Changes: 0.97: NonStop will not stop in at_exit(). |
124 | # Option AutoTrace implemented. | |
125 | # Trace printed differently if frames are printed too. | |
1d06cb2d IZ |
126 | # new `inhibitExit' option. |
127 | # printing of a very long statement interruptible. | |
128 | # Changes: 0.98: New command `m' for printing possible methods | |
129 | # 'l -' is a synonim for `-'. | |
130 | # Cosmetic bugs in printing stack trace. | |
131 | # `frame' & 8 to print "expanded args" in stack trace. | |
132 | # Can list/break in imported subs. | |
133 | # new `maxTraceLen' option. | |
134 | # frame & 4 and frame & 8 granted. | |
135 | # new command `m' | |
136 | # nonstoppable lines do not have `:' near the line number. | |
137 | # `b compile subname' implemented. | |
138 | # Will not use $` any more. | |
139 | # `-' behaves sane now. | |
477ea2b1 IZ |
140 | # Changes: 0.99: Completion for `f', `m'. |
141 | # `m' will remove duplicate names instead of duplicate functions. | |
142 | # `b load' strips trailing whitespace. | |
143 | # completion ignores leading `|'; takes into account current package | |
144 | # when completing a subroutine name (same for `l'). | |
55497cff | 145 | |
ee971a18 | 146 | #################################################################### |
d338d6fe | 147 | |
54d04a52 | 148 | # Needed for the statement after exec(): |
d338d6fe | 149 | |
54d04a52 IZ |
150 | BEGIN { $ini_warn = $^W; $^W = 0 } # Switch compilation warnings off until another BEGIN. |
151 | local($^W) = 0; # Switch run-time warnings off during init. | |
d338d6fe | 152 | warn ( # Do not ;-) |
153 | $dumpvar::hashDepth, | |
154 | $dumpvar::arrayDepth, | |
155 | $dumpvar::dumpDBFiles, | |
156 | $dumpvar::dumpPackages, | |
157 | $dumpvar::quoteHighBit, | |
158 | $dumpvar::printUndef, | |
159 | $dumpvar::globPrint, | |
d338d6fe | 160 | $dumpvar::usageOnly, |
161 | @ARGS, | |
162 | $Carp::CarpLevel, | |
54d04a52 | 163 | $panic, |
36477c24 | 164 | $second_time, |
d338d6fe | 165 | ) if 0; |
166 | ||
54d04a52 IZ |
167 | # Command-line + PERLLIB: |
168 | @ini_INC = @INC; | |
169 | ||
d338d6fe | 170 | # $prevwarn = $prevdie = $prevbus = $prevsegv = ''; # Does not help?! |
171 | ||
172 | $trace = $signal = $single = 0; # Uninitialized warning suppression | |
173 | # (local $^W cannot help - other packages!). | |
55497cff | 174 | $inhibit_exit = $option{PrintRet} = 1; |
d338d6fe | 175 | |
22fae026 | 176 | @options = qw(hashDepth arrayDepth DumpDBFiles DumpPackages DumpReused |
d338d6fe | 177 | compactDump veryCompact quote HighBit undefPrint |
36477c24 | 178 | globPrint PrintRet UsageOnly frame AutoTrace |
1d06cb2d | 179 | TTY noTTY ReadLine NonStop LineInfo maxTraceLen |
7a2e2cd6 | 180 | recallCommand ShellBang pager tkRunning ornaments |
3aefca04 | 181 | signalLevel warnLevel dieLevel inhibit_exit |
ee239bfe | 182 | ImmediateStop bareStringify); |
d338d6fe | 183 | |
184 | %optionVars = ( | |
185 | hashDepth => \$dumpvar::hashDepth, | |
186 | arrayDepth => \$dumpvar::arrayDepth, | |
187 | DumpDBFiles => \$dumpvar::dumpDBFiles, | |
188 | DumpPackages => \$dumpvar::dumpPackages, | |
22fae026 | 189 | DumpReused => \$dumpvar::dumpReused, |
d338d6fe | 190 | HighBit => \$dumpvar::quoteHighBit, |
191 | undefPrint => \$dumpvar::printUndef, | |
192 | globPrint => \$dumpvar::globPrint, | |
d338d6fe | 193 | UsageOnly => \$dumpvar::usageOnly, |
ee239bfe | 194 | bareStringify => \$dumpvar::bareStringify, |
36477c24 | 195 | frame => \$frame, |
196 | AutoTrace => \$trace, | |
197 | inhibit_exit => \$inhibit_exit, | |
1d06cb2d | 198 | maxTraceLen => \$maxtrace, |
3aefca04 | 199 | ImmediateStop => \$ImmediateStop, |
d338d6fe | 200 | ); |
201 | ||
202 | %optionAction = ( | |
203 | compactDump => \&dumpvar::compactDump, | |
204 | veryCompact => \&dumpvar::veryCompact, | |
205 | quote => \&dumpvar::quote, | |
206 | TTY => \&TTY, | |
207 | noTTY => \&noTTY, | |
208 | ReadLine => \&ReadLine, | |
209 | NonStop => \&NonStop, | |
210 | LineInfo => \&LineInfo, | |
211 | recallCommand => \&recallCommand, | |
212 | ShellBang => \&shellBang, | |
213 | pager => \&pager, | |
214 | signalLevel => \&signalLevel, | |
215 | warnLevel => \&warnLevel, | |
216 | dieLevel => \&dieLevel, | |
a737e074 | 217 | tkRunning => \&tkRunning, |
7a2e2cd6 | 218 | ornaments => \&ornaments, |
d338d6fe | 219 | ); |
220 | ||
221 | %optionRequire = ( | |
222 | compactDump => 'dumpvar.pl', | |
223 | veryCompact => 'dumpvar.pl', | |
224 | quote => 'dumpvar.pl', | |
225 | ); | |
226 | ||
227 | # These guys may be defined in $ENV{PERL5DB} : | |
228 | $rl = 1 unless defined $rl; | |
ee971a18 | 229 | $warnLevel = 1 unless defined $warnLevel; |
230 | $dieLevel = 1 unless defined $dieLevel; | |
231 | $signalLevel = 1 unless defined $signalLevel; | |
55497cff | 232 | $pre = [] unless defined $pre; |
233 | $post = [] unless defined $post; | |
234 | $pretype = [] unless defined $pretype; | |
d338d6fe | 235 | warnLevel($warnLevel); |
236 | dieLevel($dieLevel); | |
237 | signalLevel($signalLevel); | |
65c9c81d IZ |
238 | &pager((defined($ENV{PAGER}) |
239 | ? $ENV{PAGER} | |
240 | : ($^O eq 'os2' | |
241 | ? 'cmd /c more' | |
242 | : 'more'))) unless defined $pager; | |
d338d6fe | 243 | &recallCommand("!") unless defined $prc; |
244 | &shellBang("!") unless defined $psh; | |
1d06cb2d | 245 | $maxtrace = 400 unless defined $maxtrace; |
d338d6fe | 246 | |
247 | if (-e "/dev/tty") { | |
248 | $rcfile=".perldb"; | |
249 | } else { | |
250 | $rcfile="perldb.ini"; | |
251 | } | |
252 | ||
253 | if (-f $rcfile) { | |
254 | do "./$rcfile"; | |
255 | } elsif (defined $ENV{LOGDIR} and -f "$ENV{LOGDIR}/$rcfile") { | |
256 | do "$ENV{LOGDIR}/$rcfile"; | |
257 | } elsif (defined $ENV{HOME} and -f "$ENV{HOME}/$rcfile") { | |
258 | do "$ENV{HOME}/$rcfile"; | |
259 | } | |
260 | ||
261 | if (defined $ENV{PERLDB_OPTS}) { | |
262 | parse_options($ENV{PERLDB_OPTS}); | |
263 | } | |
264 | ||
54d04a52 IZ |
265 | if (exists $ENV{PERLDB_RESTART}) { |
266 | delete $ENV{PERLDB_RESTART}; | |
267 | # $restart = 1; | |
268 | @hist = get_list('PERLDB_HIST'); | |
55497cff | 269 | %break_on_load = get_list("PERLDB_ON_LOAD"); |
270 | %postponed = get_list("PERLDB_POSTPONE"); | |
271 | my @had_breakpoints= get_list("PERLDB_VISITED"); | |
272 | for (0 .. $#had_breakpoints) { | |
0c395bd7 CS |
273 | my %pf = get_list("PERLDB_FILE_$_"); |
274 | $postponed_file{$had_breakpoints[$_]} = \%pf if %pf; | |
54d04a52 IZ |
275 | } |
276 | my %opt = get_list("PERLDB_OPT"); | |
277 | my ($opt,$val); | |
278 | while (($opt,$val) = each %opt) { | |
279 | $val =~ s/[\\\']/\\$1/g; | |
280 | parse_options("$opt'$val'"); | |
281 | } | |
282 | @INC = get_list("PERLDB_INC"); | |
283 | @ini_INC = @INC; | |
43aed9ee IZ |
284 | $pretype = [get_list("PERLDB_PRETYPE")]; |
285 | $pre = [get_list("PERLDB_PRE")]; | |
286 | $post = [get_list("PERLDB_POST")]; | |
287 | @typeahead = get_list("PERLDB_TYPEAHEAD", @typeahead); | |
54d04a52 IZ |
288 | } |
289 | ||
d338d6fe | 290 | if ($notty) { |
291 | $runnonstop = 1; | |
292 | } else { | |
293 | # Is Perl being run from Emacs? | |
294 | $emacs = ((defined $main::ARGV[0]) and ($main::ARGV[0] eq '-emacs')); | |
295 | $rl = 0, shift(@main::ARGV) if $emacs; | |
296 | ||
297 | #require Term::ReadLine; | |
298 | ||
8736538c AS |
299 | if ($^O =~ /cygwin/) { |
300 | # /dev/tty is binary. use stdin for textmode | |
301 | undef $console; | |
302 | } elsif (-e "/dev/tty") { | |
d338d6fe | 303 | $console = "/dev/tty"; |
39e571d4 | 304 | } elsif ($^O eq 'dos' or -e "con" or $^O eq 'MSWin32') { |
d338d6fe | 305 | $console = "con"; |
306 | } else { | |
307 | $console = "sys\$command"; | |
308 | } | |
309 | ||
96774cc9 JR |
310 | if (($^O eq 'MSWin32') and ($emacs or defined $ENV{EMACS})) { |
311 | $console = undef; | |
312 | } | |
313 | ||
d338d6fe | 314 | # Around a bug: |
ee971a18 | 315 | if (defined $ENV{OS2_SHELL} and ($emacs or $ENV{WINDOWID})) { # In OS/2 |
d338d6fe | 316 | $console = undef; |
317 | } | |
318 | ||
319 | $console = $tty if defined $tty; | |
320 | ||
321 | if (defined $console) { | |
322 | open(IN,"+<$console") || open(IN,"<$console") || open(IN,"<&STDIN"); | |
323 | open(OUT,"+>$console") || open(OUT,">$console") || open(OUT,">&STDERR") | |
324 | || open(OUT,">&STDOUT"); # so we don't dongle stdout | |
325 | } else { | |
326 | open(IN,"<&STDIN"); | |
327 | open(OUT,">&STDERR") || open(OUT,">&STDOUT"); # so we don't dongle stdout | |
328 | $console = 'STDIN/OUT'; | |
329 | } | |
330 | # so open("|more") can read from STDOUT and so we don't dingle stdin | |
331 | $IN = \*IN; | |
332 | ||
333 | $OUT = \*OUT; | |
334 | select($OUT); | |
335 | $| = 1; # for DB::OUT | |
336 | select(STDOUT); | |
337 | ||
338 | $LINEINFO = $OUT unless defined $LINEINFO; | |
339 | $lineinfo = $console unless defined $lineinfo; | |
340 | ||
341 | $| = 1; # for real STDOUT | |
342 | ||
343 | $header =~ s/.Header: ([^,]+),v(\s+\S+\s+\S+).*$/$1$2/; | |
344 | unless ($runnonstop) { | |
345 | print $OUT "\nLoading DB routines from $header\n"; | |
346 | print $OUT ("Emacs support ", | |
347 | $emacs ? "enabled" : "available", | |
348 | ".\n"); | |
349 | print $OUT "\nEnter h or `h h' for help.\n\n"; | |
350 | } | |
351 | } | |
352 | ||
353 | @ARGS = @ARGV; | |
354 | for (@args) { | |
355 | s/\'/\\\'/g; | |
356 | s/(.*)/'$1'/ unless /^-?[\d.]+$/; | |
357 | } | |
358 | ||
359 | if (defined &afterinit) { # May be defined in $rcfile | |
360 | &afterinit(); | |
361 | } | |
362 | ||
43aed9ee IZ |
363 | $I_m_init = 1; |
364 | ||
d338d6fe | 365 | ############################################################ Subroutines |
366 | ||
d338d6fe | 367 | sub DB { |
36477c24 | 368 | # _After_ the perl program is compiled, $single is set to 1: |
369 | if ($single and not $second_time++) { | |
370 | if ($runnonstop) { # Disable until signal | |
f8b5b99c | 371 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe | 372 | $stack[$i++] &= ~1; |
373 | } | |
54d04a52 | 374 | $single = 0; |
36477c24 | 375 | # return; # Would not print trace! |
3aefca04 IZ |
376 | } elsif ($ImmediateStop) { |
377 | $ImmediateStop = 0; | |
378 | $signal = 1; | |
54d04a52 | 379 | } |
d338d6fe | 380 | } |
36477c24 | 381 | $runnonstop = 0 if $single or $signal; # Disable it if interactive. |
d338d6fe | 382 | &save; |
d338d6fe | 383 | ($package, $filename, $line) = caller; |
54d04a52 | 384 | $filename_ini = $filename; |
22fae026 | 385 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
d338d6fe | 386 | "package $package;"; # this won't let them modify, alas |
8ebc5c01 | 387 | local(*dbline) = $main::{'_<' . $filename}; |
d338d6fe | 388 | $max = $#dbline; |
389 | if (($stop,$action) = split(/\0/,$dbline{$line})) { | |
390 | if ($stop eq '1') { | |
391 | $signal |= 1; | |
54d04a52 | 392 | } elsif ($stop) { |
3f521411 | 393 | $evalarg = "\$DB::signal |= 1 if do {$stop}"; &eval; |
d338d6fe | 394 | $dbline{$line} =~ s/;9($|\0)/$1/; |
395 | } | |
396 | } | |
36477c24 | 397 | my $was_signal = $signal; |
6027b9a3 IZ |
398 | if ($trace & 2) { |
399 | for (my $n = 0; $n <= $#to_watch; $n++) { | |
400 | $evalarg = $to_watch[$n]; | |
ed0d1bf7 | 401 | local $onetimeDump; # Do not output results |
6027b9a3 IZ |
402 | my ($val) = &eval; # Fix context (&eval is doing array)? |
403 | $val = ( (defined $val) ? "'$val'" : 'undef' ); | |
404 | if ($val ne $old_watch[$n]) { | |
405 | $signal = 1; | |
406 | print $OUT <<EOP; | |
405ff068 IZ |
407 | Watchpoint $n:\t$to_watch[$n] changed: |
408 | old value:\t$old_watch[$n] | |
409 | new value:\t$val | |
6027b9a3 IZ |
410 | EOP |
411 | $old_watch[$n] = $val; | |
412 | } | |
413 | } | |
414 | } | |
415 | if ($trace & 4) { # User-installed watch | |
416 | return if watchfunction($package, $filename, $line) | |
417 | and not $single and not $was_signal and not ($trace & ~4); | |
418 | } | |
419 | $was_signal = $signal; | |
36477c24 | 420 | $signal = 0; |
6027b9a3 | 421 | if ($single || ($trace & 1) || $was_signal) { |
d338d6fe | 422 | if ($emacs) { |
54d04a52 IZ |
423 | $position = "\032\032$filename:$line:0\n"; |
424 | print $LINEINFO $position; | |
405ff068 | 425 | } elsif ($package eq 'DB::fake') { |
65c9c81d | 426 | $term || &setterm; |
405ff068 IZ |
427 | print_help(<<EOP); |
428 | Debugged program terminated. Use B<q> to quit or B<R> to restart, | |
429 | use B<O> I<inhibit_exit> to avoid stopping after program termination, | |
430 | B<h q>, B<h R> or B<h O> to get additional info. | |
431 | EOP | |
432 | $package = 'main'; | |
433 | $usercontext = '($@, $!, $,, $/, $\, $^W) = @saved;' . | |
434 | "package $package;"; # this won't let them modify, alas | |
d338d6fe | 435 | } else { |
436 | $sub =~ s/\'/::/; | |
437 | $prefix = $sub =~ /::/ ? "" : "${'package'}::"; | |
438 | $prefix .= "$sub($filename:"; | |
439 | $after = ($dbline[$line] =~ /\n$/ ? '' : "\n"); | |
440 | if (length($prefix) > 30) { | |
54d04a52 | 441 | $position = "$prefix$line):\n$line:\t$dbline[$line]$after"; |
d338d6fe | 442 | $prefix = ""; |
443 | $infix = ":\t"; | |
444 | } else { | |
445 | $infix = "):\t"; | |
54d04a52 | 446 | $position = "$prefix$line$infix$dbline[$line]$after"; |
36477c24 | 447 | } |
448 | if ($frame) { | |
f8b5b99c | 449 | print $LINEINFO ' ' x $stack_depth, "$line:\t$dbline[$line]$after"; |
36477c24 | 450 | } else { |
54d04a52 | 451 | print $LINEINFO $position; |
d338d6fe | 452 | } |
453 | for ($i = $line + 1; $i <= $max && $dbline[$i] == 0; ++$i) { #{ vi | |
454 | last if $dbline[$i] =~ /^\s*[\;\}\#\n]/; | |
36477c24 | 455 | last if $signal; |
d338d6fe | 456 | $after = ($dbline[$i] =~ /\n$/ ? '' : "\n"); |
54d04a52 | 457 | $incr_pos = "$prefix$i$infix$dbline[$i]$after"; |
54d04a52 | 458 | $position .= $incr_pos; |
36477c24 | 459 | if ($frame) { |
f8b5b99c | 460 | print $LINEINFO ' ' x $stack_depth, "$i:\t$dbline[$i]$after"; |
36477c24 | 461 | } else { |
462 | print $LINEINFO $incr_pos; | |
463 | } | |
d338d6fe | 464 | } |
465 | } | |
466 | } | |
467 | $evalarg = $action, &eval if $action; | |
36477c24 | 468 | if ($single || $was_signal) { |
d338d6fe | 469 | local $level = $level + 1; |
e63173ce IZ |
470 | foreach $evalarg (@$pre) { |
471 | &eval; | |
472 | } | |
f8b5b99c | 473 | print $OUT $stack_depth . " levels deep in subroutine calls!\n" |
d338d6fe | 474 | if $single & 4; |
475 | $start = $line; | |
1d06cb2d | 476 | $incr = -1; # for backward motion. |
55497cff | 477 | @typeahead = @$pretype, @typeahead; |
d338d6fe | 478 | CMD: |
479 | while (($term || &setterm), | |
f36776d9 | 480 | ($term_pid == $$ or &resetterm), |
54d04a52 IZ |
481 | defined ($cmd=&readline(" DB" . ('<' x $level) . |
482 | ($#hist+1) . ('>' x $level) . | |
483 | " "))) { | |
d338d6fe | 484 | $single = 0; |
485 | $signal = 0; | |
486 | $cmd =~ s/\\$/\n/ && do { | |
54d04a52 | 487 | $cmd .= &readline(" cont: "); |
d338d6fe | 488 | redo CMD; |
489 | }; | |
d338d6fe | 490 | $cmd =~ /^$/ && ($cmd = $laststep); |
491 | push(@hist,$cmd) if length($cmd) > 1; | |
492 | PIPE: { | |
493 | ($i) = split(/\s+/,$cmd); | |
494 | eval "\$cmd =~ $alias{$i}", print $OUT $@ if $alias{$i}; | |
477ea2b1 | 495 | $cmd =~ /^q$/ && ($exiting = 1) && exit 0; |
d338d6fe | 496 | $cmd =~ /^h$/ && do { |
6027b9a3 | 497 | print_help($help); |
d338d6fe | 498 | next CMD; }; |
499 | $cmd =~ /^h\s+h$/ && do { | |
6027b9a3 | 500 | print_help($summary); |
d338d6fe | 501 | next CMD; }; |
502 | $cmd =~ /^h\s+(\S)$/ && do { | |
503 | my $asked = "\Q$1"; | |
6027b9a3 IZ |
504 | if ($help =~ /^(?:[IB]<)$asked/m) { |
505 | while ($help =~ /^((?:[IB]<)$asked([\s\S]*?)\n)(?!\s)/mg) { | |
506 | print_help($1); | |
55497cff | 507 | } |
d338d6fe | 508 | } else { |
6027b9a3 | 509 | print_help("B<$asked> is not a debugger command.\n"); |
d338d6fe | 510 | } |
511 | next CMD; }; | |
512 | $cmd =~ /^t$/ && do { | |
6027b9a3 IZ |
513 | ($trace & 1) ? ($trace &= ~1) : ($trace |= 1); |
514 | print $OUT "Trace = " . | |
515 | (($trace & 1) ? "on" : "off" ) . "\n"; | |
d338d6fe | 516 | next CMD; }; |
517 | $cmd =~ /^S(\s+(!)?(.+))?$/ && do { | |
518 | $Srev = defined $2; $Spatt = $3; $Snocheck = ! defined $1; | |
519 | foreach $subname (sort(keys %sub)) { | |
520 | if ($Snocheck or $Srev^($subname =~ /$Spatt/)) { | |
521 | print $OUT $subname,"\n"; | |
522 | } | |
523 | } | |
524 | next CMD; }; | |
ee971a18 | 525 | $cmd =~ /^v$/ && do { |
526 | list_versions(); next CMD}; | |
d338d6fe | 527 | $cmd =~ s/^X\b/V $package/; |
528 | $cmd =~ /^V$/ && do { | |
529 | $cmd = "V $package"; }; | |
530 | $cmd =~ /^V\b\s*(\S+)\s*(.*)/ && do { | |
531 | local ($savout) = select($OUT); | |
532 | $packname = $1; | |
533 | @vars = split(' ',$2); | |
534 | do 'dumpvar.pl' unless defined &main::dumpvar; | |
535 | if (defined &main::dumpvar) { | |
54d04a52 | 536 | local $frame = 0; |
ee971a18 | 537 | local $doret = -2; |
d338d6fe | 538 | &main::dumpvar($packname,@vars); |
539 | } else { | |
540 | print $OUT "dumpvar.pl not available.\n"; | |
541 | } | |
542 | select ($savout); | |
543 | next CMD; }; | |
544 | $cmd =~ s/^x\b/ / && do { # So that will be evaled | |
1d06cb2d IZ |
545 | $onetimeDump = 'dump'; }; |
546 | $cmd =~ s/^m\s+([\w:]+)\s*$/ / && do { | |
547 | methods($1); next CMD}; | |
548 | $cmd =~ s/^m\b/ / && do { # So this will be evaled | |
549 | $onetimeDump = 'methods'; }; | |
d338d6fe | 550 | $cmd =~ /^f\b\s*(.*)/ && do { |
551 | $file = $1; | |
477ea2b1 | 552 | $file =~ s/\s+$//; |
d338d6fe | 553 | if (!$file) { |
554 | print $OUT "The old f command is now the r command.\n"; | |
555 | print $OUT "The new f command switches filenames.\n"; | |
556 | next CMD; | |
557 | } | |
558 | if (!defined $main::{'_<' . $file}) { | |
559 | if (($try) = grep(m#^_<.*$file#, keys %main::)) {{ | |
477ea2b1 IZ |
560 | $try = substr($try,2); |
561 | print $OUT "Choosing $try matching `$file':\n"; | |
562 | $file = $try; | |
d338d6fe | 563 | }} |
564 | } | |
565 | if (!defined $main::{'_<' . $file}) { | |
04fb8f4b | 566 | print $OUT "No file matching `$file' is loaded.\n"; |
d338d6fe | 567 | next CMD; |
568 | } elsif ($file ne $filename) { | |
8ebc5c01 | 569 | *dbline = $main::{'_<' . $file}; |
d338d6fe | 570 | $max = $#dbline; |
571 | $filename = $file; | |
572 | $start = 1; | |
573 | $cmd = "l"; | |
477ea2b1 IZ |
574 | } else { |
575 | print $OUT "Already in $file.\n"; | |
576 | next CMD; | |
577 | } | |
578 | }; | |
1d06cb2d | 579 | $cmd =~ s/^l\s+-\s*$/-/; |
d338d6fe | 580 | $cmd =~ /^l\b\s*([\':A-Za-z_][\':\w]*)/ && do { |
581 | $subname = $1; | |
582 | $subname =~ s/\'/::/; | |
477ea2b1 IZ |
583 | $subname = $package."::".$subname |
584 | unless $subname =~ /::/; | |
d338d6fe | 585 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
1d06cb2d | 586 | @pieces = split(/:/,find_sub($subname)); |
d338d6fe | 587 | $subrange = pop @pieces; |
588 | $file = join(':', @pieces); | |
589 | if ($file ne $filename) { | |
8ebc5c01 | 590 | *dbline = $main::{'_<' . $file}; |
d338d6fe | 591 | $max = $#dbline; |
592 | $filename = $file; | |
593 | } | |
594 | if ($subrange) { | |
595 | if (eval($subrange) < -$window) { | |
596 | $subrange =~ s/-.*/+/; | |
597 | } | |
598 | $cmd = "l $subrange"; | |
599 | } else { | |
600 | print $OUT "Subroutine $subname not found.\n"; | |
601 | next CMD; | |
602 | } }; | |
54d04a52 | 603 | $cmd =~ /^\.$/ && do { |
1d06cb2d | 604 | $incr = -1; # for backward motion. |
54d04a52 IZ |
605 | $start = $line; |
606 | $filename = $filename_ini; | |
8ebc5c01 | 607 | *dbline = $main::{'_<' . $filename}; |
54d04a52 IZ |
608 | $max = $#dbline; |
609 | print $LINEINFO $position; | |
610 | next CMD }; | |
d338d6fe | 611 | $cmd =~ /^w\b\s*(\d*)$/ && do { |
612 | $incr = $window - 1; | |
613 | $start = $1 if $1; | |
614 | $start -= $preview; | |
54d04a52 | 615 | #print $OUT 'l ' . $start . '-' . ($start + $incr); |
d338d6fe | 616 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
617 | $cmd =~ /^-$/ && do { | |
1d06cb2d IZ |
618 | $start -= $incr + $window + 1; |
619 | $start = 1 if $start <= 0; | |
d338d6fe | 620 | $incr = $window - 1; |
1d06cb2d | 621 | $cmd = 'l ' . ($start) . '+'; }; |
d338d6fe | 622 | $cmd =~ /^l$/ && do { |
623 | $incr = $window - 1; | |
624 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; | |
625 | $cmd =~ /^l\b\s*(\d*)\+(\d*)$/ && do { | |
626 | $start = $1 if $1; | |
627 | $incr = $2; | |
628 | $incr = $window - 1 unless $incr; | |
629 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; | |
54d04a52 IZ |
630 | $cmd =~ /^l\b\s*((-?[\d\$\.]+)([-,]([\d\$\.]+))?)?/ && do { |
631 | $end = (!defined $2) ? $max : ($4 ? $4 : $2); | |
d338d6fe | 632 | $end = $max if $end > $max; |
633 | $i = $2; | |
634 | $i = $line if $i eq '.'; | |
635 | $i = 1 if $i < 1; | |
1d06cb2d | 636 | $incr = $end - $i; |
d338d6fe | 637 | if ($emacs) { |
638 | print $OUT "\032\032$filename:$i:0\n"; | |
639 | $i = $end; | |
640 | } else { | |
641 | for (; $i <= $end; $i++) { | |
54d04a52 IZ |
642 | ($stop,$action) = split(/\0/, $dbline{$i}); |
643 | $arrow = ($i==$line | |
644 | and $filename eq $filename_ini) | |
645 | ? '==>' | |
36477c24 | 646 | : ($dbline[$i]+0 ? ':' : ' ') ; |
54d04a52 IZ |
647 | $arrow .= 'b' if $stop; |
648 | $arrow .= 'a' if $action; | |
649 | print $OUT "$i$arrow\t", $dbline[$i]; | |
65c9c81d | 650 | $i++, last if $signal; |
d338d6fe | 651 | } |
65c9c81d | 652 | print $OUT "\n" unless $dbline[$i-1] =~ /\n$/; |
d338d6fe | 653 | } |
654 | $start = $i; # remember in case they want more | |
655 | $start = $max if $start > $max; | |
656 | next CMD; }; | |
657 | $cmd =~ /^D$/ && do { | |
55497cff | 658 | print $OUT "Deleting all breakpoints...\n"; |
659 | my $file; | |
660 | for $file (keys %had_breakpoints) { | |
8ebc5c01 | 661 | local *dbline = $main::{'_<' . $file}; |
55497cff | 662 | my $max = $#dbline; |
663 | my $was; | |
664 | ||
d338d6fe | 665 | for ($i = 1; $i <= $max ; $i++) { |
666 | if (defined $dbline{$i}) { | |
667 | $dbline{$i} =~ s/^[^\0]+//; | |
668 | if ($dbline{$i} =~ s/^\0?$//) { | |
669 | delete $dbline{$i}; | |
670 | } | |
671 | } | |
672 | } | |
55497cff | 673 | } |
674 | undef %postponed; | |
675 | undef %postponed_file; | |
676 | undef %break_on_load; | |
677 | undef %had_breakpoints; | |
678 | next CMD; }; | |
d338d6fe | 679 | $cmd =~ /^L$/ && do { |
55497cff | 680 | my $file; |
681 | for $file (keys %had_breakpoints) { | |
8ebc5c01 | 682 | local *dbline = $main::{'_<' . $file}; |
55497cff | 683 | my $max = $#dbline; |
684 | my $was; | |
685 | ||
d338d6fe | 686 | for ($i = 1; $i <= $max; $i++) { |
687 | if (defined $dbline{$i}) { | |
55497cff | 688 | print "$file:\n" unless $was++; |
689 | print $OUT " $i:\t", $dbline[$i]; | |
d338d6fe | 690 | ($stop,$action) = split(/\0/, $dbline{$i}); |
55497cff | 691 | print $OUT " break if (", $stop, ")\n" |
d338d6fe | 692 | if $stop; |
55497cff | 693 | print $OUT " action: ", $action, "\n" |
d338d6fe | 694 | if $action; |
695 | last if $signal; | |
696 | } | |
697 | } | |
55497cff | 698 | } |
699 | if (%postponed) { | |
700 | print $OUT "Postponed breakpoints in subroutines:\n"; | |
701 | my $subname; | |
702 | for $subname (keys %postponed) { | |
703 | print $OUT " $subname\t$postponed{$subname}\n"; | |
704 | last if $signal; | |
705 | } | |
706 | } | |
707 | my @have = map { # Combined keys | |
708 | keys %{$postponed_file{$_}} | |
709 | } keys %postponed_file; | |
710 | if (@have) { | |
711 | print $OUT "Postponed breakpoints in files:\n"; | |
712 | my ($file, $line); | |
713 | for $file (keys %postponed_file) { | |
0c395bd7 | 714 | my $db = $postponed_file{$file}; |
55497cff | 715 | print $OUT " $file:\n"; |
0c395bd7 | 716 | for $line (sort {$a <=> $b} keys %$db) { |
08a4aec0 | 717 | print $OUT " $line:\n"; |
0c395bd7 | 718 | my ($stop,$action) = split(/\0/, $$db{$line}); |
55497cff | 719 | print $OUT " break if (", $stop, ")\n" |
720 | if $stop; | |
721 | print $OUT " action: ", $action, "\n" | |
722 | if $action; | |
723 | last if $signal; | |
724 | } | |
725 | last if $signal; | |
726 | } | |
727 | } | |
728 | if (%break_on_load) { | |
729 | print $OUT "Breakpoints on load:\n"; | |
730 | my $file; | |
731 | for $file (keys %break_on_load) { | |
732 | print $OUT " $file\n"; | |
733 | last if $signal; | |
734 | } | |
735 | } | |
6027b9a3 IZ |
736 | if ($trace & 2) { |
737 | print $OUT "Watch-expressions:\n"; | |
738 | my $expr; | |
739 | for $expr (@to_watch) { | |
740 | print $OUT " $expr\n"; | |
741 | last if $signal; | |
742 | } | |
743 | } | |
55497cff | 744 | next CMD; }; |
745 | $cmd =~ /^b\b\s*load\b\s*(.*)/ && do { | |
477ea2b1 | 746 | my $file = $1; $file =~ s/\s+$//; |
55497cff | 747 | { |
748 | $break_on_load{$file} = 1; | |
749 | $break_on_load{$::INC{$file}} = 1 if $::INC{$file}; | |
750 | $file .= '.pm', redo unless $file =~ /\./; | |
751 | } | |
752 | $had_breakpoints{$file} = 1; | |
753 | print $OUT "Will stop on load of `@{[join '\', `', sort keys %break_on_load]}'.\n"; | |
754 | next CMD; }; | |
1d06cb2d IZ |
755 | $cmd =~ /^b\b\s*(postpone|compile)\b\s*([':A-Za-z_][':\w]*)\s*(.*)/ && do { |
756 | my $cond = $3 || '1'; | |
757 | my ($subname, $break) = ($2, $1 eq 'postpone'); | |
55497cff | 758 | $subname =~ s/\'/::/; |
759 | $subname = "${'package'}::" . $subname | |
760 | unless $subname =~ /::/; | |
761 | $subname = "main".$subname if substr($subname,0,2) eq "::"; | |
1d06cb2d IZ |
762 | $postponed{$subname} = $break |
763 | ? "break +0 if $cond" : "compile"; | |
d338d6fe | 764 | next CMD; }; |
765 | $cmd =~ /^b\b\s*([':A-Za-z_][':\w]*)\s*(.*)/ && do { | |
766 | $subname = $1; | |
767 | $cond = $2 || '1'; | |
768 | $subname =~ s/\'/::/; | |
769 | $subname = "${'package'}::" . $subname | |
770 | unless $subname =~ /::/; | |
771 | $subname = "main".$subname if substr($subname,0,2) eq "::"; | |
772 | # Filename below can contain ':' | |
1d06cb2d | 773 | ($file,$i) = (find_sub($subname) =~ /^(.*):(.*)$/); |
d338d6fe | 774 | $i += 0; |
775 | if ($i) { | |
776 | $filename = $file; | |
8ebc5c01 | 777 | *dbline = $main::{'_<' . $filename}; |
55497cff | 778 | $had_breakpoints{$filename} = 1; |
d338d6fe | 779 | $max = $#dbline; |
780 | ++$i while $dbline[$i] == 0 && $i < $max; | |
781 | $dbline{$i} =~ s/^[^\0]*/$cond/; | |
782 | } else { | |
783 | print $OUT "Subroutine $subname not found.\n"; | |
784 | } | |
785 | next CMD; }; | |
786 | $cmd =~ /^b\b\s*(\d*)\s*(.*)/ && do { | |
787 | $i = ($1?$1:$line); | |
788 | $cond = $2 || '1'; | |
789 | if ($dbline[$i] == 0) { | |
790 | print $OUT "Line $i not breakable.\n"; | |
791 | } else { | |
55497cff | 792 | $had_breakpoints{$filename} = 1; |
d338d6fe | 793 | $dbline{$i} =~ s/^[^\0]*/$cond/; |
794 | } | |
795 | next CMD; }; | |
796 | $cmd =~ /^d\b\s*(\d+)?/ && do { | |
797 | $i = ($1?$1:$line); | |
798 | $dbline{$i} =~ s/^[^\0]*//; | |
799 | delete $dbline{$i} if $dbline{$i} eq ''; | |
800 | next CMD; }; | |
801 | $cmd =~ /^A$/ && do { | |
55497cff | 802 | my $file; |
803 | for $file (keys %had_breakpoints) { | |
8ebc5c01 | 804 | local *dbline = $main::{'_<' . $file}; |
55497cff | 805 | my $max = $#dbline; |
806 | my $was; | |
807 | ||
d338d6fe | 808 | for ($i = 1; $i <= $max ; $i++) { |
809 | if (defined $dbline{$i}) { | |
810 | $dbline{$i} =~ s/\0[^\0]*//; | |
811 | delete $dbline{$i} if $dbline{$i} eq ''; | |
812 | } | |
813 | } | |
55497cff | 814 | } |
815 | next CMD; }; | |
d338d6fe | 816 | $cmd =~ /^O\s*$/ && do { |
817 | for (@options) { | |
818 | &dump_option($_); | |
819 | } | |
820 | next CMD; }; | |
821 | $cmd =~ /^O\s*(\S.*)/ && do { | |
822 | parse_options($1); | |
823 | next CMD; }; | |
55497cff | 824 | $cmd =~ /^\<\<\s*(.*)/ && do { # \<\< for CPerl sake: not HERE |
825 | push @$pre, action($1); | |
826 | next CMD; }; | |
827 | $cmd =~ /^>>\s*(.*)/ && do { | |
828 | push @$post, action($1); | |
829 | next CMD; }; | |
d338d6fe | 830 | $cmd =~ /^<\s*(.*)/ && do { |
55497cff | 831 | $pre = [], next CMD unless $1; |
832 | $pre = [action($1)]; | |
d338d6fe | 833 | next CMD; }; |
834 | $cmd =~ /^>\s*(.*)/ && do { | |
55497cff | 835 | $post = [], next CMD unless $1; |
836 | $post = [action($1)]; | |
837 | next CMD; }; | |
838 | $cmd =~ /^\{\{\s*(.*)/ && do { | |
839 | push @$pretype, $1; | |
840 | next CMD; }; | |
841 | $cmd =~ /^\{\s*(.*)/ && do { | |
842 | $pretype = [], next CMD unless $1; | |
843 | $pretype = [$1]; | |
d338d6fe | 844 | next CMD; }; |
845 | $cmd =~ /^a\b\s*(\d+)(\s+(.*))?/ && do { | |
846 | $i = $1; $j = $3; | |
847 | if ($dbline[$i] == 0) { | |
848 | print $OUT "Line $i may not have an action.\n"; | |
849 | } else { | |
850 | $dbline{$i} =~ s/\0[^\0]*//; | |
851 | $dbline{$i} .= "\0" . action($j); | |
852 | } | |
853 | next CMD; }; | |
854 | $cmd =~ /^n$/ && do { | |
4639966b | 855 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe | 856 | $single = 2; |
857 | $laststep = $cmd; | |
858 | last CMD; }; | |
859 | $cmd =~ /^s$/ && do { | |
4639966b | 860 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe | 861 | $single = 1; |
862 | $laststep = $cmd; | |
863 | last CMD; }; | |
54d04a52 | 864 | $cmd =~ /^c\b\s*([\w:]*)\s*$/ && do { |
4639966b | 865 | end_report(), next CMD if $finished and $level <= 1; |
fb73857a | 866 | $subname = $i = $1; |
54d04a52 | 867 | if ($i =~ /\D/) { # subroutine name |
fb73857a | 868 | $subname = $package."::".$subname |
869 | unless $subname =~ /::/; | |
870 | ($file,$i) = (find_sub($subname) =~ /^(.*):(.*)$/); | |
54d04a52 IZ |
871 | $i += 0; |
872 | if ($i) { | |
873 | $filename = $file; | |
8ebc5c01 | 874 | *dbline = $main::{'_<' . $filename}; |
55497cff | 875 | $had_breakpoints{$filename}++; |
54d04a52 IZ |
876 | $max = $#dbline; |
877 | ++$i while $dbline[$i] == 0 && $i < $max; | |
878 | } else { | |
879 | print $OUT "Subroutine $subname not found.\n"; | |
880 | next CMD; | |
881 | } | |
882 | } | |
d338d6fe | 883 | if ($i) { |
884 | if ($dbline[$i] == 0) { | |
885 | print $OUT "Line $i not breakable.\n"; | |
886 | next CMD; | |
887 | } | |
888 | $dbline{$i} =~ s/($|\0)/;9$1/; # add one-time-only b.p. | |
889 | } | |
f8b5b99c | 890 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe | 891 | $stack[$i++] &= ~1; |
892 | } | |
893 | last CMD; }; | |
894 | $cmd =~ /^r$/ && do { | |
4639966b | 895 | end_report(), next CMD if $finished and $level <= 1; |
f8b5b99c IZ |
896 | $stack[$stack_depth] |= 1; |
897 | $doret = $option{PrintRet} ? $stack_depth - 1 : -2; | |
d338d6fe | 898 | last CMD; }; |
54d04a52 | 899 | $cmd =~ /^R$/ && do { |
55497cff | 900 | print $OUT "Warning: some settings and command-line options may be lost!\n"; |
54d04a52 IZ |
901 | my (@script, @flags, $cl); |
902 | push @flags, '-w' if $ini_warn; | |
903 | # Put all the old includes at the start to get | |
904 | # the same debugger. | |
905 | for (@ini_INC) { | |
906 | push @flags, '-I', $_; | |
907 | } | |
908 | # Arrange for setting the old INC: | |
909 | set_list("PERLDB_INC", @ini_INC); | |
910 | if ($0 eq '-e') { | |
911 | for (1..$#{'::_<-e'}) { # The first line is PERL5DB | |
912 | chomp ($cl = $ {'::_<-e'}[$_]); | |
913 | push @script, '-e', $cl; | |
914 | } | |
915 | } else { | |
916 | @script = $0; | |
917 | } | |
918 | set_list("PERLDB_HIST", | |
919 | $term->Features->{getHistory} | |
920 | ? $term->GetHistory : @hist); | |
55497cff | 921 | my @had_breakpoints = keys %had_breakpoints; |
922 | set_list("PERLDB_VISITED", @had_breakpoints); | |
54d04a52 | 923 | set_list("PERLDB_OPT", %option); |
55497cff | 924 | set_list("PERLDB_ON_LOAD", %break_on_load); |
925 | my @hard; | |
926 | for (0 .. $#had_breakpoints) { | |
927 | my $file = $had_breakpoints[$_]; | |
8ebc5c01 | 928 | *dbline = $main::{'_<' . $file}; |
0c395bd7 | 929 | next unless %dbline or $postponed_file{$file}; |
55497cff | 930 | (push @hard, $file), next |
931 | if $file =~ /^\(eval \d+\)$/; | |
932 | my @add; | |
933 | @add = %{$postponed_file{$file}} | |
0c395bd7 | 934 | if $postponed_file{$file}; |
55497cff | 935 | set_list("PERLDB_FILE_$_", %dbline, @add); |
936 | } | |
937 | for (@hard) { # Yes, really-really... | |
938 | # Find the subroutines in this eval | |
8ebc5c01 | 939 | *dbline = $main::{'_<' . $_}; |
55497cff | 940 | my ($quoted, $sub, %subs, $line) = quotemeta $_; |
941 | for $sub (keys %sub) { | |
942 | next unless $sub{$sub} =~ /^$quoted:(\d+)-(\d+)$/; | |
943 | $subs{$sub} = [$1, $2]; | |
944 | } | |
945 | unless (%subs) { | |
946 | print $OUT | |
947 | "No subroutines in $_, ignoring breakpoints.\n"; | |
948 | next; | |
949 | } | |
950 | LINES: for $line (keys %dbline) { | |
951 | # One breakpoint per sub only: | |
952 | my ($offset, $sub, $found); | |
953 | SUBS: for $sub (keys %subs) { | |
954 | if ($subs{$sub}->[1] >= $line # Not after the subroutine | |
955 | and (not defined $offset # Not caught | |
956 | or $offset < 0 )) { # or badly caught | |
957 | $found = $sub; | |
958 | $offset = $line - $subs{$sub}->[0]; | |
959 | $offset = "+$offset", last SUBS if $offset >= 0; | |
960 | } | |
961 | } | |
962 | if (defined $offset) { | |
963 | $postponed{$found} = | |
964 | "break $offset if $dbline{$line}"; | |
965 | } else { | |
966 | print $OUT "Breakpoint in $_:$line ignored: after all the subroutines.\n"; | |
967 | } | |
968 | } | |
54d04a52 | 969 | } |
55497cff | 970 | set_list("PERLDB_POSTPONE", %postponed); |
43aed9ee IZ |
971 | set_list("PERLDB_PRETYPE", @$pretype); |
972 | set_list("PERLDB_PRE", @$pre); | |
973 | set_list("PERLDB_POST", @$post); | |
974 | set_list("PERLDB_TYPEAHEAD", @typeahead); | |
54d04a52 IZ |
975 | $ENV{PERLDB_RESTART} = 1; |
976 | #print "$^X, '-d', @flags, @script, ($emacs ? '-emacs' : ()), @ARGS"; | |
977 | exec $^X, '-d', @flags, @script, ($emacs ? '-emacs' : ()), @ARGS; | |
978 | print $OUT "exec failed: $!\n"; | |
979 | last CMD; }; | |
d338d6fe | 980 | $cmd =~ /^T$/ && do { |
36477c24 | 981 | print_trace($OUT, 1); # skip DB |
d338d6fe | 982 | next CMD; }; |
6027b9a3 IZ |
983 | $cmd =~ /^W\s*$/ && do { |
984 | $trace &= ~2; | |
985 | @to_watch = @old_watch = (); | |
986 | next CMD; }; | |
987 | $cmd =~ /^W\b\s*(.*)/s && do { | |
988 | push @to_watch, $1; | |
989 | $evalarg = $1; | |
990 | my ($val) = &eval; | |
991 | $val = (defined $val) ? "'$val'" : 'undef' ; | |
992 | push @old_watch, $val; | |
993 | $trace |= 2; | |
994 | next CMD; }; | |
d338d6fe | 995 | $cmd =~ /^\/(.*)$/ && do { |
996 | $inpat = $1; | |
997 | $inpat =~ s:([^\\])/$:$1:; | |
998 | if ($inpat ne "") { | |
999 | eval '$inpat =~ m'."\a$inpat\a"; | |
1000 | if ($@ ne "") { | |
1001 | print $OUT "$@"; | |
1002 | next CMD; | |
1003 | } | |
1004 | $pat = $inpat; | |
1005 | } | |
1006 | $end = $start; | |
1d06cb2d | 1007 | $incr = -1; |
d338d6fe | 1008 | eval ' |
1009 | for (;;) { | |
1010 | ++$start; | |
1011 | $start = 1 if ($start > $max); | |
1012 | last if ($start == $end); | |
1013 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { | |
1014 | if ($emacs) { | |
1015 | print $OUT "\032\032$filename:$start:0\n"; | |
1016 | } else { | |
1017 | print $OUT "$start:\t", $dbline[$start], "\n"; | |
1018 | } | |
1019 | last; | |
1020 | } | |
1021 | } '; | |
1022 | print $OUT "/$pat/: not found\n" if ($start == $end); | |
1023 | next CMD; }; | |
1024 | $cmd =~ /^\?(.*)$/ && do { | |
1025 | $inpat = $1; | |
1026 | $inpat =~ s:([^\\])\?$:$1:; | |
1027 | if ($inpat ne "") { | |
1028 | eval '$inpat =~ m'."\a$inpat\a"; | |
1029 | if ($@ ne "") { | |
1030 | print $OUT "$@"; | |
1031 | next CMD; | |
1032 | } | |
1033 | $pat = $inpat; | |
1034 | } | |
1035 | $end = $start; | |
1d06cb2d | 1036 | $incr = -1; |
d338d6fe | 1037 | eval ' |
1038 | for (;;) { | |
1039 | --$start; | |
1040 | $start = $max if ($start <= 0); | |
1041 | last if ($start == $end); | |
1042 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { | |
1043 | if ($emacs) { | |
1044 | print $OUT "\032\032$filename:$start:0\n"; | |
1045 | } else { | |
1046 | print $OUT "$start:\t", $dbline[$start], "\n"; | |
1047 | } | |
1048 | last; | |
1049 | } | |
1050 | } '; | |
1051 | print $OUT "?$pat?: not found\n" if ($start == $end); | |
1052 | next CMD; }; | |
1053 | $cmd =~ /^$rc+\s*(-)?(\d+)?$/ && do { | |
1054 | pop(@hist) if length($cmd) > 1; | |
1055 | $i = $1 ? ($#hist-($2?$2:1)) : ($2?$2:$#hist); | |
6921e3ed | 1056 | $cmd = $hist[$i]; |
615b993b | 1057 | print $OUT $cmd, "\n"; |
d338d6fe | 1058 | redo CMD; }; |
55497cff | 1059 | $cmd =~ /^$sh$sh\s*([\x00-\xff]*)/ && do { |
ee971a18 | 1060 | &system($1); |
d338d6fe | 1061 | next CMD; }; |
1062 | $cmd =~ /^$rc([^$rc].*)$/ && do { | |
1063 | $pat = "^$1"; | |
1064 | pop(@hist) if length($cmd) > 1; | |
1065 | for ($i = $#hist; $i; --$i) { | |
1066 | last if $hist[$i] =~ /$pat/; | |
1067 | } | |
1068 | if (!$i) { | |
1069 | print $OUT "No such command!\n\n"; | |
1070 | next CMD; | |
1071 | } | |
6921e3ed | 1072 | $cmd = $hist[$i]; |
615b993b | 1073 | print $OUT $cmd, "\n"; |
d338d6fe | 1074 | redo CMD; }; |
1075 | $cmd =~ /^$sh$/ && do { | |
1076 | &system($ENV{SHELL}||"/bin/sh"); | |
1077 | next CMD; }; | |
ee971a18 | 1078 | $cmd =~ /^$sh\s*([\x00-\xff]*)/ && do { |
1079 | &system($ENV{SHELL}||"/bin/sh","-c",$1); | |
d338d6fe | 1080 | next CMD; }; |
1081 | $cmd =~ /^H\b\s*(-(\d+))?/ && do { | |
1082 | $end = $2?($#hist-$2):0; | |
1083 | $hist = 0 if $hist < 0; | |
1084 | for ($i=$#hist; $i>$end; $i--) { | |
1085 | print $OUT "$i: ",$hist[$i],"\n" | |
1086 | unless $hist[$i] =~ /^.?$/; | |
1087 | }; | |
1088 | next CMD; }; | |
b9b857e2 IZ |
1089 | $cmd =~ s/^p$/print {\$DB::OUT} \$_/; |
1090 | $cmd =~ s/^p\b/print {\$DB::OUT} /; | |
d338d6fe | 1091 | $cmd =~ /^=/ && do { |
1092 | if (local($k,$v) = ($cmd =~ /^=\s*(\S+)\s+(.*)/)) { | |
1093 | $alias{$k}="s~$k~$v~"; | |
1094 | print $OUT "$k = $v\n"; | |
1095 | } elsif ($cmd =~ /^=\s*$/) { | |
1096 | foreach $k (sort keys(%alias)) { | |
1097 | if (($v = $alias{$k}) =~ s~^s\~$k\~(.*)\~$~$1~) { | |
1098 | print $OUT "$k = $v\n"; | |
1099 | } else { | |
1100 | print $OUT "$k\t$alias{$k}\n"; | |
1101 | }; | |
1102 | }; | |
1103 | }; | |
1104 | next CMD; }; | |
1105 | $cmd =~ /^\|\|?\s*[^|]/ && do { | |
1106 | if ($pager =~ /^\|/) { | |
1107 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); | |
1108 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); | |
1109 | } else { | |
1110 | open(SAVEOUT,">&OUT") || &warn("Can't save DB::OUT"); | |
1111 | } | |
1112 | unless ($piped=open(OUT,$pager)) { | |
1113 | &warn("Can't pipe output to `$pager'"); | |
1114 | if ($pager =~ /^\|/) { | |
1115 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); | |
1116 | open(STDOUT,">&SAVEOUT") | |
1117 | || &warn("Can't restore STDOUT"); | |
1118 | close(SAVEOUT); | |
1119 | } else { | |
1120 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); | |
1121 | } | |
1122 | next CMD; | |
1123 | } | |
77fb7b16 | 1124 | $SIG{PIPE}= \&DB::catch if $pager =~ /^\|/ |
d338d6fe | 1125 | && "" eq $SIG{PIPE} || "DEFAULT" eq $SIG{PIPE}; |
1126 | $selected= select(OUT); | |
1127 | $|= 1; | |
1128 | select( $selected ), $selected= "" unless $cmd =~ /^\|\|/; | |
1129 | $cmd =~ s/^\|+\s*//; | |
1130 | redo PIPE; }; | |
1131 | # XXX Local variants do not work! | |
6027b9a3 | 1132 | $cmd =~ s/^t\s/\$DB::trace |= 1;\n/; |
d338d6fe | 1133 | $cmd =~ s/^s\s/\$DB::single = 1;\n/ && do {$laststep = 's'}; |
1134 | $cmd =~ s/^n\s/\$DB::single = 2;\n/ && do {$laststep = 'n'}; | |
1135 | } # PIPE: | |
d338d6fe | 1136 | $evalarg = "\$^D = \$^D | \$DB::db_stop;\n$cmd"; &eval; |
1137 | if ($onetimeDump) { | |
1138 | $onetimeDump = undef; | |
f36776d9 | 1139 | } elsif ($term_pid == $$) { |
d338d6fe | 1140 | print $OUT "\n"; |
1141 | } | |
1142 | } continue { # CMD: | |
1143 | if ($piped) { | |
1144 | if ($pager =~ /^\|/) { | |
1145 | $?= 0; close(OUT) || &warn("Can't close DB::OUT"); | |
1146 | &warn( "Pager `$pager' failed: ", | |
1147 | ($?>>8) > 128 ? ($?>>8)-256 : ($?>>8), | |
1148 | ( $? & 128 ) ? " (core dumped)" : "", | |
1149 | ( $? & 127 ) ? " (SIG ".($?&127).")" : "", "\n" ) if $?; | |
1150 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); | |
1151 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); | |
77fb7b16 | 1152 | $SIG{PIPE}= "DEFAULT" if $SIG{PIPE} eq \&DB::catch; |
d338d6fe | 1153 | # Will stop ignoring SIGPIPE if done like nohup(1) |
1154 | # does SIGINT but Perl doesn't give us a choice. | |
1155 | } else { | |
1156 | open(OUT,">&SAVEOUT") || &warn("Can't restore DB::OUT"); | |
1157 | } | |
1158 | close(SAVEOUT); | |
1159 | select($selected), $selected= "" unless $selected eq ""; | |
1160 | $piped= ""; | |
1161 | } | |
1162 | } # CMD: | |
04fb8f4b | 1163 | $exiting = 1 unless defined $cmd; |
e63173ce IZ |
1164 | foreach $evalarg (@$post) { |
1165 | &eval; | |
1166 | } | |
d338d6fe | 1167 | } # if ($single || $signal) |
22fae026 | 1168 | ($@, $!, $^E, $,, $/, $\, $^W) = @saved; |
d338d6fe | 1169 | (); |
1170 | } | |
1171 | ||
1172 | # The following code may be executed now: | |
1173 | # BEGIN {warn 4} | |
1174 | ||
1175 | sub sub { | |
ee971a18 | 1176 | my ($al, $ret, @ret) = ""; |
7d4a81e5 IZ |
1177 | if (length($sub) > 10 && substr($sub, -10, 10) eq '::AUTOLOAD') { |
1178 | $al = " for $$sub"; | |
ee971a18 | 1179 | } |
f8b5b99c IZ |
1180 | local $stack_depth = $stack_depth + 1; # Protect from non-local exits |
1181 | $#stack = $stack_depth; | |
1182 | $stack[-1] = $single; | |
d338d6fe | 1183 | $single &= 1; |
f8b5b99c | 1184 | $single |= 4 if $stack_depth == $deep; |
04fb8f4b | 1185 | ($frame & 4 |
f8b5b99c | 1186 | ? ( (print $LINEINFO ' ' x ($stack_depth - 1), "in "), |
04fb8f4b IZ |
1187 | # Why -1? But it works! :-( |
1188 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) | |
f8b5b99c | 1189 | : print $LINEINFO ' ' x ($stack_depth - 1), "entering $sub$al\n") if $frame; |
d338d6fe | 1190 | if (wantarray) { |
1191 | @ret = &$sub; | |
f8b5b99c | 1192 | $single |= $stack[$stack_depth--]; |
36477c24 | 1193 | ($frame & 4 |
f8b5b99c | 1194 | ? ( (print $LINEINFO ' ' x $stack_depth, "out "), |
36477c24 | 1195 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f8b5b99c IZ |
1196 | : print $LINEINFO ' ' x $stack_depth, "exited $sub$al\n") if $frame & 2; |
1197 | if ($doret eq $stack_depth or $frame & 16) { | |
1198 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); | |
1199 | print $fh ' ' x $stack_depth if $frame & 16; | |
7ea36084 IZ |
1200 | print $fh "list context return from $sub:\n"; |
1201 | dumpit($fh, \@ret ); | |
1202 | $doret = -2; | |
1203 | } | |
d338d6fe | 1204 | @ret; |
1205 | } else { | |
fb73857a | 1206 | if (defined wantarray) { |
1207 | $ret = &$sub; | |
1208 | } else { | |
1209 | &$sub; undef $ret; | |
1210 | }; | |
f8b5b99c | 1211 | $single |= $stack[$stack_depth--]; |
36477c24 | 1212 | ($frame & 4 |
f8b5b99c | 1213 | ? ( (print $LINEINFO ' ' x $stack_depth, "out "), |
36477c24 | 1214 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f8b5b99c IZ |
1215 | : print $LINEINFO ' ' x $stack_depth, "exited $sub$al\n") if $frame & 2; |
1216 | if ($doret eq $stack_depth or $frame & 16 and defined wantarray) { | |
1217 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); | |
1218 | print $fh (' ' x $stack_depth) if $frame & 16; | |
7ea36084 IZ |
1219 | print $fh (defined wantarray |
1220 | ? "scalar context return from $sub: " | |
1221 | : "void context return from $sub\n"); | |
1222 | dumpit( $fh, $ret ) if defined wantarray; | |
1223 | $doret = -2; | |
1224 | } | |
d338d6fe | 1225 | $ret; |
1226 | } | |
1227 | } | |
1228 | ||
1229 | sub save { | |
22fae026 | 1230 | @saved = ($@, $!, $^E, $,, $/, $\, $^W); |
d338d6fe | 1231 | $, = ""; $/ = "\n"; $\ = ""; $^W = 0; |
1232 | } | |
1233 | ||
1234 | # The following takes its argument via $evalarg to preserve current @_ | |
1235 | ||
1236 | sub eval { | |
1237 | my @res; | |
1238 | { | |
d338d6fe | 1239 | my $otrace = $trace; |
1240 | my $osingle = $single; | |
1241 | my $od = $^D; | |
1242 | @res = eval "$usercontext $evalarg;\n"; # '\n' for nice recursive debug | |
1243 | $trace = $otrace; | |
1244 | $single = $osingle; | |
1245 | $^D = $od; | |
1246 | } | |
1247 | my $at = $@; | |
36477c24 | 1248 | local $saved[0]; # Preserve the old value of $@ |
22fae026 | 1249 | eval { &DB::save }; |
d338d6fe | 1250 | if ($at) { |
1251 | print $OUT $at; | |
1d06cb2d | 1252 | } elsif ($onetimeDump eq 'dump') { |
7ea36084 | 1253 | dumpit($OUT, \@res); |
1d06cb2d IZ |
1254 | } elsif ($onetimeDump eq 'methods') { |
1255 | methods($res[0]); | |
d338d6fe | 1256 | } |
6027b9a3 | 1257 | @res; |
d338d6fe | 1258 | } |
1259 | ||
55497cff | 1260 | sub postponed_sub { |
1261 | my $subname = shift; | |
1d06cb2d | 1262 | if ($postponed{$subname} =~ s/^break\s([+-]?\d+)\s+if\s//) { |
55497cff | 1263 | my $offset = $1 || 0; |
1264 | # Filename below can contain ':' | |
1d06cb2d | 1265 | my ($file,$i) = (find_sub($subname) =~ /^(.*):(\d+)-.*$/); |
55497cff | 1266 | if ($i) { |
fb73857a | 1267 | $i += $offset; |
8ebc5c01 | 1268 | local *dbline = $main::{'_<' . $file}; |
55497cff | 1269 | local $^W = 0; # != 0 is magical below |
1270 | $had_breakpoints{$file}++; | |
1271 | my $max = $#dbline; | |
1272 | ++$i until $dbline[$i] != 0 or $i >= $max; | |
1273 | $dbline{$i} = delete $postponed{$subname}; | |
1274 | } else { | |
1275 | print $OUT "Subroutine $subname not found.\n"; | |
1276 | } | |
1277 | return; | |
1278 | } | |
1d06cb2d | 1279 | elsif ($postponed{$subname} eq 'compile') { $signal = 1 } |
36477c24 | 1280 | #print $OUT "In postponed_sub for `$subname'.\n"; |
55497cff | 1281 | } |
1282 | ||
1283 | sub postponed { | |
3aefca04 IZ |
1284 | if ($ImmediateStop) { |
1285 | $ImmediateStop = 0; | |
1286 | $signal = 1; | |
1287 | } | |
55497cff | 1288 | return &postponed_sub |
1289 | unless ref \$_[0] eq 'GLOB'; # A subroutine is compiled. | |
1290 | # Cannot be done before the file is compiled | |
1291 | local *dbline = shift; | |
1292 | my $filename = $dbline; | |
1293 | $filename =~ s/^_<//; | |
36477c24 | 1294 | $signal = 1, print $OUT "'$filename' loaded...\n" |
1295 | if $break_on_load{$filename}; | |
f8b5b99c | 1296 | print $LINEINFO ' ' x $stack_depth, "Package $filename.\n" if $frame; |
0c395bd7 | 1297 | return unless $postponed_file{$filename}; |
55497cff | 1298 | $had_breakpoints{$filename}++; |
1299 | #%dbline = %{$postponed_file{$filename}}; # Cannot be done: unsufficient magic | |
1300 | my $key; | |
1301 | for $key (keys %{$postponed_file{$filename}}) { | |
1302 | $dbline{$key} = $ {$postponed_file{$filename}}{$key}; | |
54d04a52 | 1303 | } |
0c395bd7 | 1304 | delete $postponed_file{$filename}; |
54d04a52 IZ |
1305 | } |
1306 | ||
d338d6fe | 1307 | sub dumpit { |
7ea36084 | 1308 | local ($savout) = select(shift); |
ee971a18 | 1309 | my $osingle = $single; |
1310 | my $otrace = $trace; | |
1311 | $single = $trace = 0; | |
1312 | local $frame = 0; | |
1313 | local $doret = -2; | |
1314 | unless (defined &main::dumpValue) { | |
1315 | do 'dumpvar.pl'; | |
1316 | } | |
d338d6fe | 1317 | if (defined &main::dumpValue) { |
1318 | &main::dumpValue(shift); | |
1319 | } else { | |
1320 | print $OUT "dumpvar.pl not available.\n"; | |
1321 | } | |
ee971a18 | 1322 | $single = $osingle; |
1323 | $trace = $otrace; | |
d338d6fe | 1324 | select ($savout); |
1325 | } | |
1326 | ||
36477c24 | 1327 | # Tied method do not create a context, so may get wrong message: |
1328 | ||
55497cff | 1329 | sub print_trace { |
1330 | my $fh = shift; | |
36477c24 | 1331 | my @sub = dump_trace($_[0] + 1, $_[1]); |
1332 | my $short = $_[2]; # Print short report, next one for sub name | |
1d06cb2d | 1333 | my $s; |
55497cff | 1334 | for ($i=0; $i <= $#sub; $i++) { |
1335 | last if $signal; | |
1336 | local $" = ', '; | |
1337 | my $args = defined $sub[$i]{args} | |
1338 | ? "(@{ $sub[$i]{args} })" | |
1339 | : '' ; | |
1d06cb2d IZ |
1340 | $args = (substr $args, 0, $maxtrace - 3) . '...' |
1341 | if length $args > $maxtrace; | |
36477c24 | 1342 | my $file = $sub[$i]{file}; |
1343 | $file = $file eq '-e' ? $file : "file `$file'" unless $short; | |
1d06cb2d IZ |
1344 | $s = $sub[$i]{sub}; |
1345 | $s = (substr $s, 0, $maxtrace - 3) . '...' if length $s > $maxtrace; | |
36477c24 | 1346 | if ($short) { |
1d06cb2d | 1347 | my $sub = @_ >= 4 ? $_[3] : $s; |
36477c24 | 1348 | print $fh "$sub[$i]{context}=$sub$args from $file:$sub[$i]{line}\n"; |
1349 | } else { | |
1d06cb2d | 1350 | print $fh "$sub[$i]{context} = $s$args" . |
36477c24 | 1351 | " called from $file" . |
1352 | " line $sub[$i]{line}\n"; | |
1353 | } | |
55497cff | 1354 | } |
1355 | } | |
1356 | ||
1357 | sub dump_trace { | |
1358 | my $skip = shift; | |
36477c24 | 1359 | my $count = shift || 1e9; |
1360 | $skip++; | |
1361 | $count += $skip; | |
55497cff | 1362 | my ($p,$file,$line,$sub,$h,$args,$e,$r,@a,@sub,$context); |
04fb8f4b IZ |
1363 | my $nothard = not $frame & 8; |
1364 | local $frame = 0; # Do not want to trace this. | |
1365 | my $otrace = $trace; | |
1366 | $trace = 0; | |
55497cff | 1367 | for ($i = $skip; |
36477c24 | 1368 | $i < $count and ($p,$file,$line,$sub,$h,$context,$e,$r) = caller($i); |
55497cff | 1369 | $i++) { |
1370 | @a = (); | |
1371 | for $arg (@args) { | |
04fb8f4b IZ |
1372 | my $type; |
1373 | if (not defined $arg) { | |
1374 | push @a, "undef"; | |
1375 | } elsif ($nothard and tied $arg) { | |
1376 | push @a, "tied"; | |
1377 | } elsif ($nothard and $type = ref $arg) { | |
1378 | push @a, "ref($type)"; | |
1379 | } else { | |
1380 | local $_ = "$arg"; # Safe to stringify now - should not call f(). | |
1381 | s/([\'\\])/\\$1/g; | |
1382 | s/(.*)/'$1'/s | |
1383 | unless /^(?: -?[\d.]+ | \*[\w:]* )$/x; | |
1384 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; | |
1385 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; | |
1386 | push(@a, $_); | |
1387 | } | |
55497cff | 1388 | } |
7ea36084 | 1389 | $context = $context ? '@' : (defined $context ? "\$" : '.'); |
55497cff | 1390 | $args = $h ? [@a] : undef; |
1391 | $e =~ s/\n\s*\;\s*\Z// if $e; | |
1d06cb2d | 1392 | $e =~ s/([\\\'])/\\$1/g if $e; |
55497cff | 1393 | if ($r) { |
1394 | $sub = "require '$e'"; | |
1395 | } elsif (defined $r) { | |
1396 | $sub = "eval '$e'"; | |
1397 | } elsif ($sub eq '(eval)') { | |
1398 | $sub = "eval {...}"; | |
1399 | } | |
1400 | push(@sub, {context => $context, sub => $sub, args => $args, | |
1401 | file => $file, line => $line}); | |
1402 | last if $signal; | |
1403 | } | |
04fb8f4b | 1404 | $trace = $otrace; |
55497cff | 1405 | @sub; |
1406 | } | |
1407 | ||
d338d6fe | 1408 | sub action { |
1409 | my $action = shift; | |
1410 | while ($action =~ s/\\$//) { | |
1411 | #print $OUT "+ "; | |
1412 | #$action .= "\n"; | |
1413 | $action .= &gets; | |
1414 | } | |
1415 | $action; | |
1416 | } | |
1417 | ||
1418 | sub gets { | |
1419 | local($.); | |
1420 | #<IN>; | |
1421 | &readline("cont: "); | |
1422 | } | |
1423 | ||
1424 | sub system { | |
1425 | # We save, change, then restore STDIN and STDOUT to avoid fork() since | |
1426 | # many non-Unix systems can do system() but have problems with fork(). | |
1427 | open(SAVEIN,"<&STDIN") || &warn("Can't save STDIN"); | |
8ee058cb | 1428 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); |
d338d6fe | 1429 | open(STDIN,"<&IN") || &warn("Can't redirect STDIN"); |
1430 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); | |
1431 | system(@_); | |
1432 | open(STDIN,"<&SAVEIN") || &warn("Can't restore STDIN"); | |
1433 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); | |
1434 | close(SAVEIN); close(SAVEOUT); | |
1435 | &warn( "(Command returned ", ($?>>8) > 128 ? ($?>>8)-256 : ($?>>8), ")", | |
1436 | ( $? & 128 ) ? " (core dumped)" : "", | |
1437 | ( $? & 127 ) ? " (SIG ".($?&127).")" : "", "\n" ) if $?; | |
1438 | $?; | |
1439 | } | |
1440 | ||
1441 | sub setterm { | |
54d04a52 | 1442 | local $frame = 0; |
ee971a18 | 1443 | local $doret = -2; |
ee971a18 | 1444 | eval { require Term::ReadLine } or die $@; |
d338d6fe | 1445 | if ($notty) { |
1446 | if ($tty) { | |
1447 | open(IN,"<$tty") or die "Cannot open TTY `$TTY' for read: $!"; | |
1448 | open(OUT,">$tty") or die "Cannot open TTY `$TTY' for write: $!"; | |
1449 | $IN = \*IN; | |
1450 | $OUT = \*OUT; | |
1451 | my $sel = select($OUT); | |
1452 | $| = 1; | |
1453 | select($sel); | |
1454 | } else { | |
1455 | eval "require Term::Rendezvous;" or die $@; | |
1456 | my $rv = $ENV{PERLDB_NOTTY} || "/tmp/perldbtty$$"; | |
1457 | my $term_rv = new Term::Rendezvous $rv; | |
1458 | $IN = $term_rv->IN; | |
1459 | $OUT = $term_rv->OUT; | |
1460 | } | |
1461 | } | |
1462 | if (!$rl) { | |
1463 | $term = new Term::ReadLine::Stub 'perldb', $IN, $OUT; | |
1464 | } else { | |
1465 | $term = new Term::ReadLine 'perldb', $IN, $OUT; | |
1466 | ||
a737e074 CS |
1467 | $rl_attribs = $term->Attribs; |
1468 | $rl_attribs->{basic_word_break_characters} .= '-:+/*,[])}' | |
1469 | if defined $rl_attribs->{basic_word_break_characters} | |
1470 | and index($rl_attribs->{basic_word_break_characters}, ":") == -1; | |
1471 | $rl_attribs->{special_prefixes} = '$@&%'; | |
1472 | $rl_attribs->{completer_word_break_characters} .= '$@&%'; | |
1473 | $rl_attribs->{completion_function} = \&db_complete; | |
d338d6fe | 1474 | } |
1475 | $LINEINFO = $OUT unless defined $LINEINFO; | |
1476 | $lineinfo = $console unless defined $lineinfo; | |
1477 | $term->MinLine(2); | |
54d04a52 IZ |
1478 | if ($term->Features->{setHistory} and "@hist" ne "?") { |
1479 | $term->SetHistory(@hist); | |
1480 | } | |
7a2e2cd6 | 1481 | ornaments($ornaments) if defined $ornaments; |
f36776d9 IZ |
1482 | $term_pid = $$; |
1483 | } | |
1484 | ||
1485 | sub resetterm { # We forked, so we need a different TTY | |
1486 | $term_pid = $$; | |
1487 | if (defined &get_fork_TTY) { | |
1488 | &get_fork_TTY; | |
1489 | } elsif (not defined $fork_TTY | |
1490 | and defined $ENV{TERM} and $ENV{TERM} eq 'xterm' | |
1491 | and defined $ENV{WINDOWID} and defined $ENV{DISPLAY}) { | |
1492 | # Possibly _inside_ XTERM | |
1493 | open XT, q[3>&1 xterm -title 'Forked Perl debugger' -e sh -c 'tty 1>&3;\ | |
1494 | sleep 10000000' |]; | |
1495 | $fork_TTY = <XT>; | |
1496 | chomp $fork_TTY; | |
1497 | } | |
1498 | if (defined $fork_TTY) { | |
1499 | TTY($fork_TTY); | |
1500 | undef $fork_TTY; | |
1501 | } else { | |
405ff068 IZ |
1502 | print_help(<<EOP); |
1503 | I<#########> Forked, but do not know how to change a B<TTY>. I<#########> | |
1504 | Define B<\$DB::fork_TTY> | |
1505 | - or a function B<DB::get_fork_TTY()> which will set B<\$DB::fork_TTY>. | |
1506 | The value of B<\$DB::fork_TTY> should be the name of I<TTY> to use. | |
1507 | On I<UNIX>-like systems one can get the name of a I<TTY> for the given window | |
1508 | by typing B<tty>, and disconnect the I<shell> from I<TTY> by B<sleep 1000000>. | |
1509 | EOP | |
f36776d9 | 1510 | } |
d338d6fe | 1511 | } |
1512 | ||
1513 | sub readline { | |
54d04a52 IZ |
1514 | if (@typeahead) { |
1515 | my $left = @typeahead; | |
1516 | my $got = shift @typeahead; | |
1517 | print $OUT "auto(-$left)", shift, $got, "\n"; | |
1518 | $term->AddHistory($got) | |
1519 | if length($got) > 1 and defined $term->Features->{addHistory}; | |
1520 | return $got; | |
1521 | } | |
d338d6fe | 1522 | local $frame = 0; |
ee971a18 | 1523 | local $doret = -2; |
d338d6fe | 1524 | $term->readline(@_); |
1525 | } | |
1526 | ||
1527 | sub dump_option { | |
1528 | my ($opt, $val)= @_; | |
55497cff | 1529 | $val = option_val($opt,'N/A'); |
1530 | $val =~ s/([\\\'])/\\$1/g; | |
1531 | printf $OUT "%20s = '%s'\n", $opt, $val; | |
1532 | } | |
1533 | ||
1534 | sub option_val { | |
1535 | my ($opt, $default)= @_; | |
1536 | my $val; | |
d338d6fe | 1537 | if (defined $optionVars{$opt} |
1538 | and defined $ {$optionVars{$opt}}) { | |
1539 | $val = $ {$optionVars{$opt}}; | |
1540 | } elsif (defined $optionAction{$opt} | |
1541 | and defined &{$optionAction{$opt}}) { | |
1542 | $val = &{$optionAction{$opt}}(); | |
1543 | } elsif (defined $optionAction{$opt} | |
1544 | and not defined $option{$opt} | |
1545 | or defined $optionVars{$opt} | |
1546 | and not defined $ {$optionVars{$opt}}) { | |
55497cff | 1547 | $val = $default; |
d338d6fe | 1548 | } else { |
1549 | $val = $option{$opt}; | |
1550 | } | |
55497cff | 1551 | $val |
d338d6fe | 1552 | } |
1553 | ||
1554 | sub parse_options { | |
1555 | local($_)= @_; | |
1556 | while ($_ ne "") { | |
1557 | s/^(\w+)(\s*$|\W)// or print($OUT "Invalid option `$_'\n"), last; | |
1558 | my ($opt,$sep) = ($1,$2); | |
1559 | my $val; | |
1560 | if ("?" eq $sep) { | |
1561 | print($OUT "Option query `$opt?' followed by non-space `$_'\n"), last | |
1562 | if /^\S/; | |
1563 | #&dump_option($opt); | |
1564 | } elsif ($sep !~ /\S/) { | |
1565 | $val = "1"; | |
1566 | } elsif ($sep eq "=") { | |
1567 | s/^(\S*)($|\s+)//; | |
1568 | $val = $1; | |
1569 | } else { #{ to "let some poor schmuck bounce on the % key in B<vi>." | |
1570 | my ($end) = "\\" . substr( ")]>}$sep", index("([<{",$sep), 1 ); #} | |
1571 | s/^(([^\\$end]|\\[\\$end])*)$end($|\s+)// or | |
1572 | print($OUT "Unclosed option value `$opt$sep$_'\n"), last; | |
1573 | $val = $1; | |
1574 | $val =~ s/\\([\\$end])/$1/g; | |
1575 | } | |
1576 | my ($option); | |
1577 | my $matches = | |
1578 | grep( /^\Q$opt/ && ($option = $_), @options ); | |
1579 | $matches = grep( /^\Q$opt/i && ($option = $_), @options ) | |
1580 | unless $matches; | |
1581 | print $OUT "Unknown option `$opt'\n" unless $matches; | |
1582 | print $OUT "Ambiguous option `$opt'\n" if $matches > 1; | |
1583 | $option{$option} = $val if $matches == 1 and defined $val; | |
ee971a18 | 1584 | eval "local \$frame = 0; local \$doret = -2; |
1585 | require '$optionRequire{$option}'" | |
d338d6fe | 1586 | if $matches == 1 and defined $optionRequire{$option} and defined $val; |
1587 | $ {$optionVars{$option}} = $val | |
1588 | if $matches == 1 | |
1589 | and defined $optionVars{$option} and defined $val; | |
1590 | & {$optionAction{$option}} ($val) | |
1591 | if $matches == 1 | |
1592 | and defined $optionAction{$option} | |
1593 | and defined &{$optionAction{$option}} and defined $val; | |
1594 | &dump_option($option) if $matches == 1 && $OUT ne \*STDERR; # Not $rcfile | |
1595 | s/^\s+//; | |
1596 | } | |
1597 | } | |
1598 | ||
54d04a52 IZ |
1599 | sub set_list { |
1600 | my ($stem,@list) = @_; | |
1601 | my $val; | |
1602 | $ENV{"$ {stem}_n"} = @list; | |
1603 | for $i (0 .. $#list) { | |
1604 | $val = $list[$i]; | |
1605 | $val =~ s/\\/\\\\/g; | |
ee971a18 | 1606 | $val =~ s/([\0-\37\177\200-\377])/"\\0x" . unpack('H2',$1)/eg; |
54d04a52 IZ |
1607 | $ENV{"$ {stem}_$i"} = $val; |
1608 | } | |
1609 | } | |
1610 | ||
1611 | sub get_list { | |
1612 | my $stem = shift; | |
1613 | my @list; | |
1614 | my $n = delete $ENV{"$ {stem}_n"}; | |
1615 | my $val; | |
1616 | for $i (0 .. $n - 1) { | |
1617 | $val = delete $ENV{"$ {stem}_$i"}; | |
1618 | $val =~ s/\\((\\)|0x(..))/ $2 ? $2 : pack('H2', $3) /ge; | |
1619 | push @list, $val; | |
1620 | } | |
1621 | @list; | |
1622 | } | |
1623 | ||
d338d6fe | 1624 | sub catch { |
1625 | $signal = 1; | |
4639966b | 1626 | return; # Put nothing on the stack - malloc/free land! |
d338d6fe | 1627 | } |
1628 | ||
1629 | sub warn { | |
1630 | my($msg)= join("",@_); | |
1631 | $msg .= ": $!\n" unless $msg =~ /\n$/; | |
1632 | print $OUT $msg; | |
1633 | } | |
1634 | ||
1635 | sub TTY { | |
f36776d9 IZ |
1636 | if (@_ and $term and $term->Features->{newTTY}) { |
1637 | my ($in, $out) = shift; | |
1638 | if ($in =~ /,/) { | |
1639 | ($in, $out) = split /,/, $in, 2; | |
1640 | } else { | |
1641 | $out = $in; | |
1642 | } | |
1643 | open IN, $in or die "cannot open `$in' for read: $!"; | |
1644 | open OUT, ">$out" or die "cannot open `$out' for write: $!"; | |
1645 | $term->newTTY(\*IN, \*OUT); | |
1646 | $IN = \*IN; | |
1647 | $OUT = \*OUT; | |
1648 | return $tty = $in; | |
1649 | } elsif ($term and @_) { | |
1650 | &warn("Too late to set TTY, enabled on next `R'!\n"); | |
43aed9ee IZ |
1651 | } |
1652 | $tty = shift if @_; | |
d338d6fe | 1653 | $tty or $console; |
1654 | } | |
1655 | ||
1656 | sub noTTY { | |
1657 | if ($term) { | |
43aed9ee | 1658 | &warn("Too late to set noTTY, enabled on next `R'!\n") if @_; |
d338d6fe | 1659 | } |
43aed9ee | 1660 | $notty = shift if @_; |
d338d6fe | 1661 | $notty; |
1662 | } | |
1663 | ||
1664 | sub ReadLine { | |
1665 | if ($term) { | |
43aed9ee | 1666 | &warn("Too late to set ReadLine, enabled on next `R'!\n") if @_; |
d338d6fe | 1667 | } |
43aed9ee | 1668 | $rl = shift if @_; |
d338d6fe | 1669 | $rl; |
1670 | } | |
1671 | ||
a737e074 CS |
1672 | sub tkRunning { |
1673 | if ($ {$term->Features}{tkRunning}) { | |
1674 | return $term->tkRunning(@_); | |
1675 | } else { | |
1676 | print $OUT "tkRunning not supported by current ReadLine package.\n"; | |
1677 | 0; | |
1678 | } | |
1679 | } | |
1680 | ||
d338d6fe | 1681 | sub NonStop { |
1682 | if ($term) { | |
43aed9ee | 1683 | &warn("Too late to set up NonStop mode, enabled on next `R'!\n") if @_; |
d338d6fe | 1684 | } |
43aed9ee | 1685 | $runnonstop = shift if @_; |
d338d6fe | 1686 | $runnonstop; |
1687 | } | |
1688 | ||
1689 | sub pager { | |
1690 | if (@_) { | |
1691 | $pager = shift; | |
1692 | $pager="|".$pager unless $pager =~ /^(\+?\>|\|)/; | |
1693 | } | |
1694 | $pager; | |
1695 | } | |
1696 | ||
1697 | sub shellBang { | |
1698 | if (@_) { | |
1699 | $sh = quotemeta shift; | |
1700 | $sh .= "\\b" if $sh =~ /\w$/; | |
1701 | } | |
1702 | $psh = $sh; | |
1703 | $psh =~ s/\\b$//; | |
1704 | $psh =~ s/\\(.)/$1/g; | |
1705 | &sethelp; | |
1706 | $psh; | |
1707 | } | |
1708 | ||
7a2e2cd6 | 1709 | sub ornaments { |
1710 | if (defined $term) { | |
1711 | local ($warnLevel,$dieLevel) = (0, 1); | |
1712 | return '' unless $term->Features->{ornaments}; | |
1713 | eval { $term->ornaments(@_) } || ''; | |
1714 | } else { | |
1715 | $ornaments = shift; | |
1716 | } | |
1717 | } | |
1718 | ||
d338d6fe | 1719 | sub recallCommand { |
1720 | if (@_) { | |
1721 | $rc = quotemeta shift; | |
1722 | $rc .= "\\b" if $rc =~ /\w$/; | |
1723 | } | |
1724 | $prc = $rc; | |
1725 | $prc =~ s/\\b$//; | |
1726 | $prc =~ s/\\(.)/$1/g; | |
1727 | &sethelp; | |
1728 | $prc; | |
1729 | } | |
1730 | ||
1731 | sub LineInfo { | |
1732 | return $lineinfo unless @_; | |
1733 | $lineinfo = shift; | |
1734 | my $stream = ($lineinfo =~ /^(\+?\>|\|)/) ? $lineinfo : ">$lineinfo"; | |
1735 | $emacs = ($stream =~ /^\|/); | |
1736 | open(LINEINFO, "$stream") || &warn("Cannot open `$stream' for write"); | |
1737 | $LINEINFO = \*LINEINFO; | |
1738 | my $save = select($LINEINFO); | |
1739 | $| = 1; | |
1740 | select($save); | |
1741 | $lineinfo; | |
1742 | } | |
1743 | ||
ee971a18 | 1744 | sub list_versions { |
1745 | my %version; | |
1746 | my $file; | |
1747 | for (keys %INC) { | |
1748 | $file = $_; | |
1749 | s,\.p[lm]$,,i ; | |
1750 | s,/,::,g ; | |
1751 | s/^perl5db$/DB/; | |
55497cff | 1752 | s/^Term::ReadLine::readline$/readline/; |
ee971a18 | 1753 | if (defined $ { $_ . '::VERSION' }) { |
1754 | $version{$file} = "$ { $_ . '::VERSION' } from "; | |
1755 | } | |
1756 | $version{$file} .= $INC{$file}; | |
1757 | } | |
2c53b6d0 | 1758 | dumpit($OUT,\%version); |
ee971a18 | 1759 | } |
1760 | ||
d338d6fe | 1761 | sub sethelp { |
1762 | $help = " | |
6027b9a3 IZ |
1763 | B<T> Stack trace. |
1764 | B<s> [I<expr>] Single step [in I<expr>]. | |
1765 | B<n> [I<expr>] Next, steps over subroutine calls [in I<expr>]. | |
1766 | <B<CR>> Repeat last B<n> or B<s> command. | |
1767 | B<r> Return from current subroutine. | |
1768 | B<c> [I<line>|I<sub>] Continue; optionally inserts a one-time-only breakpoint | |
55497cff | 1769 | at the specified position. |
6027b9a3 IZ |
1770 | B<l> I<min>B<+>I<incr> List I<incr>+1 lines starting at I<min>. |
1771 | B<l> I<min>B<->I<max> List lines I<min> through I<max>. | |
1772 | B<l> I<line> List single I<line>. | |
1773 | B<l> I<subname> List first window of lines from subroutine. | |
1774 | B<l> List next window of lines. | |
1775 | B<-> List previous window of lines. | |
1776 | B<w> [I<line>] List window around I<line>. | |
1777 | B<.> Return to the executed line. | |
1778 | B<f> I<filename> Switch to viewing I<filename>. Must be loaded. | |
1779 | B</>I<pattern>B</> Search forwards for I<pattern>; final B</> is optional. | |
1780 | B<?>I<pattern>B<?> Search backwards for I<pattern>; final B<?> is optional. | |
1781 | B<L> List all breakpoints and actions. | |
1782 | B<S> [[B<!>]I<pattern>] List subroutine names [not] matching I<pattern>. | |
1783 | B<t> Toggle trace mode. | |
1784 | B<t> I<expr> Trace through execution of I<expr>. | |
1785 | B<b> [I<line>] [I<condition>] | |
1786 | Set breakpoint; I<line> defaults to the current execution line; | |
1787 | I<condition> breaks if it evaluates to true, defaults to '1'. | |
1788 | B<b> I<subname> [I<condition>] | |
d338d6fe | 1789 | Set breakpoint at first line of subroutine. |
6027b9a3 IZ |
1790 | B<b> B<load> I<filename> Set breakpoint on `require'ing the given file. |
1791 | B<b> B<postpone> I<subname> [I<condition>] | |
55497cff | 1792 | Set breakpoint at first line of subroutine after |
1793 | it is compiled. | |
6027b9a3 | 1794 | B<b> B<compile> I<subname> |
1d06cb2d | 1795 | Stop after the subroutine is compiled. |
6027b9a3 IZ |
1796 | B<d> [I<line>] Delete the breakpoint for I<line>. |
1797 | B<D> Delete all breakpoints. | |
1798 | B<a> [I<line>] I<command> | |
1799 | Set an action to be done before the I<line> is executed. | |
1800 | Sequence is: check for breakpoint/watchpoint, print line | |
1801 | if necessary, do action, prompt user if necessary, | |
1802 | execute expression. | |
1803 | B<A> Delete all actions. | |
1804 | B<W> I<expr> Add a global watch-expression. | |
1805 | B<W> Delete all watch-expressions. | |
1806 | B<V> [I<pkg> [I<vars>]] List some (default all) variables in package (default current). | |
1807 | Use B<~>I<pattern> and B<!>I<pattern> for positive and negative regexps. | |
1808 | B<X> [I<vars>] Same as \"B<V> I<currentpackage> [I<vars>]\". | |
1809 | B<x> I<expr> Evals expression in array context, dumps the result. | |
1810 | B<m> I<expr> Evals expression in array context, prints methods callable | |
1d06cb2d | 1811 | on the first element of the result. |
6027b9a3 IZ |
1812 | B<m> I<class> Prints methods callable via the given class. |
1813 | B<O> [I<opt>[B<=>I<val>]] [I<opt>B<\">I<val>B<\">] [I<opt>B<?>]... | |
1814 | Set or query values of options. I<val> defaults to 1. I<opt> can | |
d338d6fe | 1815 | be abbreviated. Several options can be listed. |
6027b9a3 IZ |
1816 | I<recallCommand>, I<ShellBang>: chars used to recall command or spawn shell; |
1817 | I<pager>: program for output of \"|cmd\"; | |
1818 | I<tkRunning>: run Tk while prompting (with ReadLine); | |
1819 | I<signalLevel> I<warnLevel> I<dieLevel>: level of verbosity; | |
1820 | I<inhibit_exit> Allows stepping off the end of the script. | |
3aefca04 | 1821 | I<ImmediateStop> Debugger should stop as early as possible. |
6027b9a3 IZ |
1822 | The following options affect what happens with B<V>, B<X>, and B<x> commands: |
1823 | I<arrayDepth>, I<hashDepth>: print only first N elements ('' for all); | |
1824 | I<compactDump>, I<veryCompact>: change style of array and hash dump; | |
1825 | I<globPrint>: whether to print contents of globs; | |
1826 | I<DumpDBFiles>: dump arrays holding debugged files; | |
1827 | I<DumpPackages>: dump symbol tables of packages; | |
22fae026 | 1828 | I<DumpReused>: dump contents of \"reused\" addresses; |
6027b9a3 | 1829 | I<quote>, I<HighBit>, I<undefPrint>: change style of string dump; |
ee239bfe | 1830 | I<bareStringify>: Do not print the overload-stringified value; |
6027b9a3 IZ |
1831 | Option I<PrintRet> affects printing of return value after B<r> command, |
1832 | I<frame> affects printing messages on entry and exit from subroutines. | |
1833 | I<AutoTrace> affects printing messages on every possible breaking point. | |
1834 | I<maxTraceLen> gives maximal length of evals/args listed in stack trace. | |
1835 | I<ornaments> affects screen appearance of the command line. | |
d338d6fe | 1836 | During startup options are initialized from \$ENV{PERLDB_OPTS}. |
6027b9a3 IZ |
1837 | You can put additional initialization options I<TTY>, I<noTTY>, |
1838 | I<ReadLine>, and I<NonStop> there (or use `B<R>' after you set them). | |
1839 | B<<> I<expr> Define Perl command to run before each prompt. | |
1840 | B<<<> I<expr> Add to the list of Perl commands to run before each prompt. | |
1841 | B<>> I<expr> Define Perl command to run after each prompt. | |
1842 | B<>>B<>> I<expr> Add to the list of Perl commands to run after each prompt. | |
1843 | B<{> I<db_command> Define debugger command to run before each prompt. | |
1844 | B<{{> I<db_command> Add to the list of debugger commands to run before each prompt. | |
1845 | B<$prc> I<number> Redo a previous command (default previous command). | |
1846 | B<$prc> I<-number> Redo number'th-to-last command. | |
1847 | B<$prc> I<pattern> Redo last command that started with I<pattern>. | |
1848 | See 'B<O> I<recallCommand>' too. | |
1849 | B<$psh$psh> I<cmd> Run cmd in a subprocess (reads from DB::IN, writes to DB::OUT)" | |
d338d6fe | 1850 | . ( $rc eq $sh ? "" : " |
6027b9a3 IZ |
1851 | B<$psh> [I<cmd>] Run I<cmd> in subshell (forces \"\$SHELL -c 'cmd'\")." ) . " |
1852 | See 'B<O> I<shellBang>' too. | |
1853 | B<H> I<-number> Display last number commands (default all). | |
1854 | B<p> I<expr> Same as \"I<print {DB::OUT} expr>\" in current package. | |
1855 | B<|>I<dbcmd> Run debugger command, piping DB::OUT to current pager. | |
1856 | B<||>I<dbcmd> Same as B<|>I<dbcmd> but DB::OUT is temporarilly select()ed as well. | |
1857 | B<\=> [I<alias> I<value>] Define a command alias, or list current aliases. | |
1858 | I<command> Execute as a perl statement in current package. | |
1859 | B<v> Show versions of loaded modules. | |
1860 | B<R> Pure-man-restart of debugger, some of debugger state | |
55497cff | 1861 | and command-line options may be lost. |
36477c24 | 1862 | Currently the following setting are preserved: |
6027b9a3 IZ |
1863 | history, breakpoints and actions, debugger B<O>ptions |
1864 | and the following command-line options: I<-w>, I<-I>, I<-e>. | |
1865 | B<h> [I<db_command>] Get help [on a specific debugger command], enter B<|h> to page. | |
1866 | B<h h> Summary of debugger commands. | |
405ff068 | 1867 | B<q> or B<^D> Quit. Set B<\$DB::finished = 0> to debug global destruction. |
d338d6fe | 1868 | |
1869 | "; | |
1870 | $summary = <<"END_SUM"; | |
6027b9a3 IZ |
1871 | I<List/search source lines:> I<Control script execution:> |
1872 | B<l> [I<ln>|I<sub>] List source code B<T> Stack trace | |
1873 | B<-> or B<.> List previous/current line B<s> [I<expr>] Single step [in expr] | |
1874 | B<w> [I<line>] List around line B<n> [I<expr>] Next, steps over subs | |
1875 | B<f> I<filename> View source in file <B<CR>> Repeat last B<n> or B<s> | |
1876 | B</>I<pattern>B</> B<?>I<patt>B<?> Search forw/backw B<r> Return from subroutine | |
1877 | B<v> Show versions of modules B<c> [I<ln>|I<sub>] Continue until position | |
1878 | I<Debugger controls:> B<L> List break/watch/actions | |
1879 | B<O> [...] Set debugger options B<t> [I<expr>] Toggle trace [trace expr] | |
1880 | B<<>[B<<>] or B<{>[B<{>] [I<cmd>] Do before prompt B<b> [I<ln>|I<event>] [I<cnd>] Set breakpoint | |
1881 | B<>>[B<>>] [I<cmd>] Do after prompt B<b> I<sub> [I<cnd>] Set breakpoint for sub | |
1882 | B<$prc> [I<N>|I<pat>] Redo a previous command B<d> [I<ln>] or B<D> Delete a/all breakpoints | |
1883 | B<H> [I<-num>] Display last num commands B<a> [I<ln>] I<cmd> Do cmd before line | |
1884 | B<=> [I<a> I<val>] Define/list an alias B<W> I<expr> Add a watch expression | |
1885 | B<h> [I<db_cmd>] Get help on command B<A> or B<W> Delete all actions/watch | |
1886 | B<|>[B<|>]I<dbcmd> Send output to pager B<$psh>\[B<$psh>\] I<syscmd> Run cmd in a subprocess | |
1887 | B<q> or B<^D> Quit B<R> Attempt a restart | |
1888 | I<Data Examination:> B<expr> Execute perl code, also see: B<s>,B<n>,B<t> I<expr> | |
1889 | B<x>|B<m> I<expr> Evals expr in array context, dumps the result or lists methods. | |
1890 | B<p> I<expr> Print expression (uses script's current package). | |
1891 | B<S> [[B<!>]I<pat>] List subroutine names [not] matching pattern | |
1892 | B<V> [I<Pk> [I<Vars>]] List Variables in Package. Vars can be ~pattern or !pattern. | |
1893 | B<X> [I<Vars>] Same as \"B<V> I<current_package> [I<Vars>]\". | |
d338d6fe | 1894 | END_SUM |
55497cff | 1895 | # ')}}; # Fix balance of Emacs parsing |
d338d6fe | 1896 | } |
1897 | ||
6027b9a3 IZ |
1898 | sub print_help { |
1899 | my $message = shift; | |
1900 | if (@Term::ReadLine::TermCap::rl_term_set) { | |
1901 | $message =~ s/B<([^>]+|>)>/$Term::ReadLine::TermCap::rl_term_set[2]$1$Term::ReadLine::TermCap::rl_term_set[3]/g; | |
1902 | $message =~ s/I<([^>]+|>)>/$Term::ReadLine::TermCap::rl_term_set[0]$1$Term::ReadLine::TermCap::rl_term_set[1]/g; | |
1903 | } | |
1904 | print $OUT $message; | |
1905 | } | |
1906 | ||
d338d6fe | 1907 | sub diesignal { |
54d04a52 | 1908 | local $frame = 0; |
ee971a18 | 1909 | local $doret = -2; |
77fb7b16 | 1910 | $SIG{'ABRT'} = 'DEFAULT'; |
d338d6fe | 1911 | kill 'ABRT', $$ if $panic++; |
ee85b803 CS |
1912 | if (defined &Carp::longmess) { |
1913 | local $SIG{__WARN__} = ''; | |
1914 | local $Carp::CarpLevel = 2; # mydie + confess | |
1915 | &warn(Carp::longmess("Signal @_")); | |
1916 | } | |
1917 | else { | |
1918 | print $DB::OUT "Got signal @_\n"; | |
1919 | } | |
d338d6fe | 1920 | kill 'ABRT', $$; |
1921 | } | |
1922 | ||
1923 | sub dbwarn { | |
54d04a52 | 1924 | local $frame = 0; |
ee971a18 | 1925 | local $doret = -2; |
d338d6fe | 1926 | local $SIG{__WARN__} = ''; |
77fb7b16 | 1927 | local $SIG{__DIE__} = ''; |
fb73857a | 1928 | eval { require Carp } if defined $^S; # If error/warning during compilation, |
1929 | # require may be broken. | |
1930 | warn(@_, "\nCannot print stack trace, load with -MCarp option to see stack"), | |
1931 | return unless defined &Carp::longmess; | |
d338d6fe | 1932 | my ($mysingle,$mytrace) = ($single,$trace); |
1933 | $single = 0; $trace = 0; | |
1934 | my $mess = Carp::longmess(@_); | |
1935 | ($single,$trace) = ($mysingle,$mytrace); | |
d338d6fe | 1936 | &warn($mess); |
d338d6fe | 1937 | } |
1938 | ||
1939 | sub dbdie { | |
54d04a52 | 1940 | local $frame = 0; |
ee971a18 | 1941 | local $doret = -2; |
d338d6fe | 1942 | local $SIG{__DIE__} = ''; |
1943 | local $SIG{__WARN__} = ''; | |
1944 | my $i = 0; my $ineval = 0; my $sub; | |
fb73857a | 1945 | if ($dieLevel > 2) { |
d338d6fe | 1946 | local $SIG{__WARN__} = \&dbwarn; |
fb73857a | 1947 | &warn(@_); # Yell no matter what |
1948 | return; | |
1949 | } | |
1950 | if ($dieLevel < 2) { | |
1951 | die @_ if $^S; # in eval propagate | |
d338d6fe | 1952 | } |
fb73857a | 1953 | eval { require Carp } if defined $^S; # If error/warning during compilation, |
1954 | # require may be broken. | |
1955 | die(@_, "\nCannot print stack trace, load with -MCarp option to see stack") | |
1956 | unless defined &Carp::longmess; | |
d338d6fe | 1957 | # We do not want to debug this chunk (automatic disabling works |
1958 | # inside DB::DB, but not in Carp). | |
1959 | my ($mysingle,$mytrace) = ($single,$trace); | |
1960 | $single = 0; $trace = 0; | |
1961 | my $mess = Carp::longmess(@_); | |
1962 | ($single,$trace) = ($mysingle,$mytrace); | |
d338d6fe | 1963 | die $mess; |
1964 | } | |
1965 | ||
d338d6fe | 1966 | sub warnLevel { |
1967 | if (@_) { | |
1968 | $prevwarn = $SIG{__WARN__} unless $warnLevel; | |
1969 | $warnLevel = shift; | |
1970 | if ($warnLevel) { | |
0b7ed949 | 1971 | $SIG{__WARN__} = \&DB::dbwarn; |
d338d6fe | 1972 | } else { |
1973 | $SIG{__WARN__} = $prevwarn; | |
1974 | } | |
1975 | } | |
1976 | $warnLevel; | |
1977 | } | |
1978 | ||
1979 | sub dieLevel { | |
1980 | if (@_) { | |
1981 | $prevdie = $SIG{__DIE__} unless $dieLevel; | |
1982 | $dieLevel = shift; | |
1983 | if ($dieLevel) { | |
0b7ed949 | 1984 | $SIG{__DIE__} = \&DB::dbdie; # if $dieLevel < 2; |
1985 | #$SIG{__DIE__} = \&DB::diehard if $dieLevel >= 2; | |
d338d6fe | 1986 | print $OUT "Stack dump during die enabled", |
43aed9ee IZ |
1987 | ( $dieLevel == 1 ? " outside of evals" : ""), ".\n" |
1988 | if $I_m_init; | |
d338d6fe | 1989 | print $OUT "Dump printed too.\n" if $dieLevel > 2; |
1990 | } else { | |
1991 | $SIG{__DIE__} = $prevdie; | |
1992 | print $OUT "Default die handler restored.\n"; | |
1993 | } | |
1994 | } | |
1995 | $dieLevel; | |
1996 | } | |
1997 | ||
1998 | sub signalLevel { | |
1999 | if (@_) { | |
2000 | $prevsegv = $SIG{SEGV} unless $signalLevel; | |
2001 | $prevbus = $SIG{BUS} unless $signalLevel; | |
2002 | $signalLevel = shift; | |
2003 | if ($signalLevel) { | |
77fb7b16 | 2004 | $SIG{SEGV} = \&DB::diesignal; |
2005 | $SIG{BUS} = \&DB::diesignal; | |
d338d6fe | 2006 | } else { |
2007 | $SIG{SEGV} = $prevsegv; | |
2008 | $SIG{BUS} = $prevbus; | |
2009 | } | |
2010 | } | |
2011 | $signalLevel; | |
2012 | } | |
2013 | ||
1d06cb2d IZ |
2014 | sub find_sub { |
2015 | my $subr = shift; | |
2016 | return unless defined &$subr; | |
2017 | $sub{$subr} or do { | |
2018 | $subr = \&$subr; # Hard reference | |
2019 | my $s; | |
2020 | for (keys %sub) { | |
2021 | $s = $_, last if $subr eq \&$_; | |
2022 | } | |
2023 | $sub{$s} if $s; | |
2024 | } | |
2025 | } | |
2026 | ||
2027 | sub methods { | |
2028 | my $class = shift; | |
2029 | $class = ref $class if ref $class; | |
2030 | local %seen; | |
2031 | local %packs; | |
2032 | methods_via($class, '', 1); | |
2033 | methods_via('UNIVERSAL', 'UNIVERSAL', 0); | |
2034 | } | |
2035 | ||
2036 | sub methods_via { | |
2037 | my $class = shift; | |
2038 | return if $packs{$class}++; | |
2039 | my $prefix = shift; | |
2040 | my $prepend = $prefix ? "via $prefix: " : ''; | |
2041 | my $name; | |
2042 | for $name (grep {defined &{$ {"$ {class}::"}{$_}}} | |
2043 | sort keys %{"$ {class}::"}) { | |
477ea2b1 | 2044 | next if $seen{ $name }++; |
1d06cb2d IZ |
2045 | print $DB::OUT "$prepend$name\n"; |
2046 | } | |
2047 | return unless shift; # Recurse? | |
2048 | for $name (@{"$ {class}::ISA"}) { | |
2049 | $prepend = $prefix ? $prefix . " -> $name" : $name; | |
2050 | methods_via($name, $prepend, 1); | |
2051 | } | |
2052 | } | |
2053 | ||
d338d6fe | 2054 | # The following BEGIN is very handy if debugger goes havoc, debugging debugger? |
2055 | ||
2056 | BEGIN { # This does not compile, alas. | |
2057 | $IN = \*STDIN; # For bugs before DB::OUT has been opened | |
2058 | $OUT = \*STDERR; # For errors before DB::OUT has been opened | |
2059 | $sh = '!'; | |
2060 | $rc = ','; | |
2061 | @hist = ('?'); | |
2062 | $deep = 100; # warning if stack gets this deep | |
2063 | $window = 10; | |
2064 | $preview = 3; | |
2065 | $sub = ''; | |
77fb7b16 | 2066 | $SIG{INT} = \&DB::catch; |
ee971a18 | 2067 | # This may be enabled to debug debugger: |
2068 | #$warnLevel = 1 unless defined $warnLevel; | |
2069 | #$dieLevel = 1 unless defined $dieLevel; | |
2070 | #$signalLevel = 1 unless defined $signalLevel; | |
d338d6fe | 2071 | |
2072 | $db_stop = 0; # Compiler warning | |
2073 | $db_stop = 1 << 30; | |
2074 | $level = 0; # Level of recursive debugging | |
55497cff | 2075 | # @stack and $doret are needed in sub sub, which is called for DB::postponed. |
2076 | # Triggers bug (?) in perl is we postpone this until runtime: | |
2077 | @postponed = @stack = (0); | |
f8b5b99c | 2078 | $stack_depth = 0; # Localized $#stack |
55497cff | 2079 | $doret = -2; |
2080 | $frame = 0; | |
d338d6fe | 2081 | } |
2082 | ||
54d04a52 IZ |
2083 | BEGIN {$^W = $ini_warn;} # Switch warnings back |
2084 | ||
d338d6fe | 2085 | #use Carp; # This did break, left for debuggin |
2086 | ||
55497cff | 2087 | sub db_complete { |
08a4aec0 | 2088 | # Specific code for b c l V m f O, &blah, $blah, @blah, %blah |
55497cff | 2089 | my($text, $line, $start) = @_; |
477ea2b1 | 2090 | my ($itext, $search, $prefix, $pack) = |
08a4aec0 | 2091 | ($text, "^\Q$ {'package'}::\E([^:]+)\$"); |
55497cff | 2092 | |
08a4aec0 IZ |
2093 | return sort grep /^\Q$text/, (keys %sub), qw(postpone load compile), # subroutines |
2094 | (map { /$search/ ? ($1) : () } keys %sub) | |
2095 | if (substr $line, 0, $start) =~ /^\|*[blc]\s+((postpone|compile)\s+)?$/; | |
2096 | return sort grep /^\Q$text/, values %INC # files | |
477ea2b1 | 2097 | if (substr $line, 0, $start) =~ /^\|*b\s+load\s+$/; |
08a4aec0 IZ |
2098 | return sort map {($_, db_complete($_ . "::", "V ", 2))} |
2099 | grep /^\Q$text/, map { /^(.*)::$/ ? ($1) : ()} keys %:: # top-packages | |
2100 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ and $text =~ /^\w*$/; | |
2101 | return sort map {($_, db_complete($_ . "::", "V ", 2))} | |
2102 | grep !/^main::/, | |
2103 | grep /^\Q$text/, map { /^(.*)::$/ ? ($prefix . "::$1") : ()} keys %{$prefix . '::'} | |
2104 | # packages | |
2105 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ | |
2106 | and $text =~ /^(.*[^:])::?(\w*)$/ and $prefix = $1; | |
477ea2b1 IZ |
2107 | if ( $line =~ /^\|*f\s+(.*)/ ) { # Loaded files |
2108 | # We may want to complete to (eval 9), so $text may be wrong | |
2109 | $prefix = length($1) - length($text); | |
2110 | $text = $1; | |
08a4aec0 IZ |
2111 | return sort |
2112 | map {substr $_, 2 + $prefix} grep /^_<\Q$text/, (keys %main::), $0 | |
477ea2b1 | 2113 | } |
55497cff | 2114 | if ((substr $text, 0, 1) eq '&') { # subroutines |
2115 | $text = substr $text, 1; | |
2116 | $prefix = "&"; | |
08a4aec0 IZ |
2117 | return sort map "$prefix$_", |
2118 | grep /^\Q$text/, | |
2119 | (keys %sub), | |
2120 | (map { /$search/ ? ($1) : () } | |
2121 | keys %sub); | |
55497cff | 2122 | } |
2123 | if ($text =~ /^[\$@%](.*)::(.*)/) { # symbols in a package | |
2124 | $pack = ($1 eq 'main' ? '' : $1) . '::'; | |
2125 | $prefix = (substr $text, 0, 1) . $1 . '::'; | |
2126 | $text = $2; | |
2127 | my @out | |
2128 | = map "$prefix$_", grep /^\Q$text/, grep /^_?[a-zA-Z]/, keys %$pack ; | |
2129 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { | |
2130 | return db_complete($out[0], $line, $start); | |
2131 | } | |
08a4aec0 | 2132 | return sort @out; |
55497cff | 2133 | } |
2134 | if ($text =~ /^[\$@%]/) { # symbols (in $package + packages in main) | |
2135 | $pack = ($package eq 'main' ? '' : $package) . '::'; | |
2136 | $prefix = substr $text, 0, 1; | |
2137 | $text = substr $text, 1; | |
2138 | my @out = map "$prefix$_", grep /^\Q$text/, | |
2139 | (grep /^_?[a-zA-Z]/, keys %$pack), | |
2140 | ( $pack eq '::' ? () : (grep /::$/, keys %::) ) ; | |
2141 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { | |
2142 | return db_complete($out[0], $line, $start); | |
2143 | } | |
08a4aec0 | 2144 | return sort @out; |
55497cff | 2145 | } |
477ea2b1 | 2146 | if ((substr $line, 0, $start) =~ /^\|*O\b.*\s$/) { # Options after a space |
55497cff | 2147 | my @out = grep /^\Q$text/, @options; |
2148 | my $val = option_val($out[0], undef); | |
2149 | my $out = '? '; | |
2150 | if (not defined $val or $val =~ /[\n\r]/) { | |
2151 | # Can do nothing better | |
2152 | } elsif ($val =~ /\s/) { | |
2153 | my $found; | |
2154 | foreach $l (split //, qq/\"\'\#\|/) { | |
2155 | $out = "$l$val$l ", last if (index $val, $l) == -1; | |
2156 | } | |
2157 | } else { | |
2158 | $out = "=$val "; | |
2159 | } | |
2160 | # Default to value if one completion, to question if many | |
a737e074 | 2161 | $rl_attribs->{completer_terminator_character} = (@out == 1 ? $out : '? '); |
08a4aec0 | 2162 | return sort @out; |
55497cff | 2163 | } |
a737e074 | 2164 | return $term->filename_list($text); # filenames |
55497cff | 2165 | } |
2166 | ||
43aed9ee IZ |
2167 | sub end_report { |
2168 | print $OUT "Use `q' to quit or `R' to restart. `h q' for details.\n" | |
2169 | } | |
4639966b | 2170 | |
55497cff | 2171 | END { |
2172 | $finished = $inhibit_exit; # So that some keys may be disabled. | |
36477c24 | 2173 | # Do not stop in at_exit() and destructors on exit: |
2174 | $DB::single = !$exiting && !$runnonstop; | |
2175 | DB::fake::at_exit() unless $exiting or $runnonstop; | |
55497cff | 2176 | } |
2177 | ||
2178 | package DB::fake; | |
2179 | ||
2180 | sub at_exit { | |
43aed9ee | 2181 | "Debugged program terminated. Use `q' to quit or `R' to restart."; |
55497cff | 2182 | } |
2183 | ||
36477c24 | 2184 | package DB; # Do not trace this 1; below! |
2185 | ||
d338d6fe | 2186 | 1; |