Commit | Line | Data |
a687059c |
1 | package DB; |
2 | |
54d04a52 |
3 | # Debugger for Perl 5.00x; perl5db.pl patch level: |
d338d6fe |
4 | |
055fd3a9 |
5 | $VERSION = 1.07; |
43aed9ee |
6 | $header = "perl5db.pl version $VERSION"; |
d338d6fe |
7 | |
d338d6fe |
8 | # |
9 | # This file is automatically included if you do perl -d. |
10 | # It's probably not useful to include this yourself. |
11 | # |
36477c24 |
12 | # Perl supplies the values for %sub. It effectively inserts |
13 | # a &DB'DB(); in front of every place that can have a |
d338d6fe |
14 | # breakpoint. Instead of a subroutine call it calls &DB::sub with |
15 | # $DB::sub being the called subroutine. It also inserts a BEGIN |
16 | # {require 'perl5db.pl'} before the first line. |
17 | # |
55497cff |
18 | # After each `require'd file is compiled, but before it is executed, a |
477ea2b1 |
19 | # call to DB::postponed($main::{'_<'.$filename}) is emulated. Here the |
55497cff |
20 | # $filename is the expanded name of the `require'd file (as found as |
21 | # value of %INC). |
22 | # |
23 | # Additional services from Perl interpreter: |
24 | # |
25 | # if caller() is called from the package DB, it provides some |
26 | # additional data. |
27 | # |
477ea2b1 |
28 | # The array @{$main::{'_<'.$filename} is the line-by-line contents of |
55497cff |
29 | # $filename. |
30 | # |
477ea2b1 |
31 | # The hash %{'_<'.$filename} contains breakpoints and action (it is |
55497cff |
32 | # keyed by line number), and individual entries are settable (as |
33 | # opposed to the whole hash). Only true/false is important to the |
34 | # interpreter, though the values used by perl5db.pl have the form |
35 | # "$break_condition\0$action". Values are magical in numeric context. |
36 | # |
477ea2b1 |
37 | # The scalar ${'_<'.$filename} contains "_<$filename". |
55497cff |
38 | # |
d338d6fe |
39 | # Note that no subroutine call is possible until &DB::sub is defined |
36477c24 |
40 | # (for subroutines defined outside of the package DB). In fact the same is |
d338d6fe |
41 | # true if $deep is not defined. |
42 | # |
43 | # $Log: perldb.pl,v $ |
44 | |
45 | # |
46 | # At start reads $rcfile that may set important options. This file |
47 | # may define a subroutine &afterinit that will be executed after the |
48 | # debugger is initialized. |
49 | # |
50 | # After $rcfile is read reads environment variable PERLDB_OPTS and parses |
51 | # it as a rest of `O ...' line in debugger prompt. |
52 | # |
53 | # The options that can be specified only at startup: |
54 | # [To set in $rcfile, call &parse_options("optionName=new_value").] |
55 | # |
56 | # TTY - the TTY to use for debugging i/o. |
57 | # |
58 | # noTTY - if set, goes in NonStop mode. On interrupt if TTY is not set |
59 | # uses the value of noTTY or "/tmp/perldbtty$$" to find TTY using |
60 | # Term::Rendezvous. Current variant is to have the name of TTY in this |
61 | # file. |
62 | # |
63 | # ReadLine - If false, dummy ReadLine is used, so you can debug |
64 | # ReadLine applications. |
65 | # |
66 | # NonStop - if true, no i/o is performed until interrupt. |
67 | # |
68 | # LineInfo - file or pipe to print line number info to. If it is a |
69 | # pipe, a short "emacs like" message is used. |
70 | # |
363b4d59 |
71 | # RemotePort - host:port to connect to on remote host for remote debugging. |
72 | # |
d338d6fe |
73 | # Example $rcfile: (delete leading hashes!) |
74 | # |
75 | # &parse_options("NonStop=1 LineInfo=db.out"); |
76 | # sub afterinit { $trace = 1; } |
77 | # |
78 | # The script will run without human intervention, putting trace |
79 | # information into db.out. (If you interrupt it, you would better |
80 | # reset LineInfo to something "interactive"!) |
81 | # |
ee971a18 |
82 | ################################################################## |
055fd3a9 |
83 | |
84 | # Enhanced by ilya@math.ohio-state.edu (Ilya Zakharevich) |
85 | # Latest version available: ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl |
86 | |
87 | # modified Perl debugger, to be run from Emacs in perldb-mode |
88 | # Ray Lischner (uunet!mntgfx!lisch) as of 5 Nov 1990 |
89 | # Johan Vromans -- upgrade to 4.0 pl 10 |
90 | # Ilya Zakharevich -- patches after 5.001 (and some before ;-) |
91 | |
ee971a18 |
92 | # Changelog: |
93 | |
94 | # A lot of things changed after 0.94. First of all, core now informs |
95 | # debugger about entry into XSUBs, overloaded operators, tied operations, |
96 | # BEGIN and END. Handy with `O f=2'. |
97 | |
98 | # This can make debugger a little bit too verbose, please be patient |
99 | # and report your problems promptly. |
100 | |
101 | # Now the option frame has 3 values: 0,1,2. |
102 | |
103 | # Note that if DESTROY returns a reference to the object (or object), |
104 | # the deletion of data may be postponed until the next function call, |
105 | # due to the need to examine the return value. |
106 | |
55497cff |
107 | # Changes: 0.95: `v' command shows versions. |
108 | # Changes: 0.96: `v' command shows version of readline. |
109 | # primitive completion works (dynamic variables, subs for `b' and `l', |
110 | # options). Can `p %var' |
111 | # Better help (`h <' now works). New commands <<, >>, {, {{. |
112 | # {dump|print}_trace() coded (to be able to do it from <<cmd). |
113 | # `c sub' documented. |
114 | # At last enough magic combined to stop after the end of debuggee. |
115 | # !! should work now (thanks to Emacs bracket matching an extra |
116 | # `]' in a regexp is caught). |
117 | # `L', `D' and `A' span files now (as documented). |
118 | # Breakpoints in `require'd code are possible (used in `R'). |
119 | # Some additional words on internal work of debugger. |
120 | # `b load filename' implemented. |
121 | # `b postpone subr' implemented. |
122 | # now only `q' exits debugger (overwriteable on $inhibit_exit). |
123 | # When restarting debugger breakpoints/actions persist. |
124 | # Buglet: When restarting debugger only one breakpoint/action per |
125 | # autoloaded function persists. |
36477c24 |
126 | # Changes: 0.97: NonStop will not stop in at_exit(). |
127 | # Option AutoTrace implemented. |
128 | # Trace printed differently if frames are printed too. |
1d06cb2d |
129 | # new `inhibitExit' option. |
130 | # printing of a very long statement interruptible. |
131 | # Changes: 0.98: New command `m' for printing possible methods |
132 | # 'l -' is a synonim for `-'. |
133 | # Cosmetic bugs in printing stack trace. |
134 | # `frame' & 8 to print "expanded args" in stack trace. |
135 | # Can list/break in imported subs. |
136 | # new `maxTraceLen' option. |
137 | # frame & 4 and frame & 8 granted. |
138 | # new command `m' |
139 | # nonstoppable lines do not have `:' near the line number. |
140 | # `b compile subname' implemented. |
141 | # Will not use $` any more. |
142 | # `-' behaves sane now. |
477ea2b1 |
143 | # Changes: 0.99: Completion for `f', `m'. |
144 | # `m' will remove duplicate names instead of duplicate functions. |
145 | # `b load' strips trailing whitespace. |
146 | # completion ignores leading `|'; takes into account current package |
147 | # when completing a subroutine name (same for `l'). |
055fd3a9 |
148 | # Changes: 1.07: Many fixed by tchrist 13-March-2000 |
149 | # BUG FIXES: |
150 | # + Added bare mimimal security checks on perldb rc files, plus |
151 | # comments on what else is needed. |
152 | # + Fixed the ornaments that made "|h" completely unusable. |
153 | # They are not used in print_help if they will hurt. Strip pod |
154 | # if we're paging to less. |
155 | # + Fixed mis-formatting of help messages caused by ornaments |
156 | # to restore Larry's original formatting. |
157 | # + Fixed many other formatting errors. The code is still suboptimal, |
158 | # and needs a lot of work at restructuing. It's also misindented |
159 | # in many places. |
160 | # + Fixed bug where trying to look at an option like your pager |
161 | # shows "1". |
162 | # + Fixed some $? processing. Note: if you use csh or tcsh, you will |
163 | # lose. You should consider shell escapes not using their shell, |
164 | # or else not caring about detailed status. This should really be |
165 | # unified into one place, too. |
166 | # + Fixed bug where invisible trailing whitespace on commands hoses you, |
167 | # tricking Perl into thinking you wern't calling a debugger command! |
168 | # + Fixed bug where leading whitespace on commands hoses you. (One |
169 | # suggests a leading semicolon or any other irrelevant non-whitespace |
170 | # to indicate literal Perl code.) |
171 | # + Fixed bugs that ate warnings due to wrong selected handle. |
172 | # + Fixed a precedence bug on signal stuff. |
173 | # + Fixed some unseemly wording. |
174 | # + Fixed bug in help command trying to call perl method code. |
175 | # + Fixed to call dumpvar from exception handler. SIGPIPE killed us. |
176 | # ENHANCEMENTS: |
177 | # + Added some comments. This code is still nasty spaghetti. |
178 | # + Added message if you clear your pre/post command stacks which was |
179 | # very easy to do if you just typed a bare >, <, or {. (A command |
180 | # without an argument should *never* be a destructive action; this |
181 | # API is fundamentally screwed up; likewise option setting, which |
182 | # is equally buggered.) |
183 | # + Added command stack dump on argument of "?" for >, <, or {. |
184 | # + Added a semi-built-in doc viewer command that calls man with the |
185 | # proper %Config::Config path (and thus gets caching, man -k, etc), |
186 | # or else perldoc on obstreperous platforms. |
187 | # + Added to and rearranged the help information. |
188 | # + Detected apparent misuse of { ... } to declare a block; this used |
189 | # to work but now is a command, and mysteriously gave no complaint. |
55497cff |
190 | |
ee971a18 |
191 | #################################################################### |
d338d6fe |
192 | |
54d04a52 |
193 | # Needed for the statement after exec(): |
d338d6fe |
194 | |
54d04a52 |
195 | BEGIN { $ini_warn = $^W; $^W = 0 } # Switch compilation warnings off until another BEGIN. |
196 | local($^W) = 0; # Switch run-time warnings off during init. |
d338d6fe |
197 | warn ( # Do not ;-) |
198 | $dumpvar::hashDepth, |
199 | $dumpvar::arrayDepth, |
200 | $dumpvar::dumpDBFiles, |
201 | $dumpvar::dumpPackages, |
202 | $dumpvar::quoteHighBit, |
203 | $dumpvar::printUndef, |
204 | $dumpvar::globPrint, |
d338d6fe |
205 | $dumpvar::usageOnly, |
206 | @ARGS, |
207 | $Carp::CarpLevel, |
54d04a52 |
208 | $panic, |
36477c24 |
209 | $second_time, |
d338d6fe |
210 | ) if 0; |
211 | |
54d04a52 |
212 | # Command-line + PERLLIB: |
213 | @ini_INC = @INC; |
214 | |
d338d6fe |
215 | # $prevwarn = $prevdie = $prevbus = $prevsegv = ''; # Does not help?! |
216 | |
217 | $trace = $signal = $single = 0; # Uninitialized warning suppression |
218 | # (local $^W cannot help - other packages!). |
55497cff |
219 | $inhibit_exit = $option{PrintRet} = 1; |
d338d6fe |
220 | |
22fae026 |
221 | @options = qw(hashDepth arrayDepth DumpDBFiles DumpPackages DumpReused |
d338d6fe |
222 | compactDump veryCompact quote HighBit undefPrint |
36477c24 |
223 | globPrint PrintRet UsageOnly frame AutoTrace |
1d06cb2d |
224 | TTY noTTY ReadLine NonStop LineInfo maxTraceLen |
7a2e2cd6 |
225 | recallCommand ShellBang pager tkRunning ornaments |
3aefca04 |
226 | signalLevel warnLevel dieLevel inhibit_exit |
363b4d59 |
227 | ImmediateStop bareStringify |
228 | RemotePort); |
d338d6fe |
229 | |
230 | %optionVars = ( |
231 | hashDepth => \$dumpvar::hashDepth, |
232 | arrayDepth => \$dumpvar::arrayDepth, |
233 | DumpDBFiles => \$dumpvar::dumpDBFiles, |
234 | DumpPackages => \$dumpvar::dumpPackages, |
22fae026 |
235 | DumpReused => \$dumpvar::dumpReused, |
d338d6fe |
236 | HighBit => \$dumpvar::quoteHighBit, |
237 | undefPrint => \$dumpvar::printUndef, |
238 | globPrint => \$dumpvar::globPrint, |
d338d6fe |
239 | UsageOnly => \$dumpvar::usageOnly, |
ee239bfe |
240 | bareStringify => \$dumpvar::bareStringify, |
36477c24 |
241 | frame => \$frame, |
242 | AutoTrace => \$trace, |
243 | inhibit_exit => \$inhibit_exit, |
1d06cb2d |
244 | maxTraceLen => \$maxtrace, |
3aefca04 |
245 | ImmediateStop => \$ImmediateStop, |
363b4d59 |
246 | RemotePort => \$remoteport, |
d338d6fe |
247 | ); |
248 | |
249 | %optionAction = ( |
250 | compactDump => \&dumpvar::compactDump, |
251 | veryCompact => \&dumpvar::veryCompact, |
252 | quote => \&dumpvar::quote, |
253 | TTY => \&TTY, |
254 | noTTY => \&noTTY, |
255 | ReadLine => \&ReadLine, |
256 | NonStop => \&NonStop, |
257 | LineInfo => \&LineInfo, |
258 | recallCommand => \&recallCommand, |
259 | ShellBang => \&shellBang, |
260 | pager => \&pager, |
261 | signalLevel => \&signalLevel, |
262 | warnLevel => \&warnLevel, |
263 | dieLevel => \&dieLevel, |
a737e074 |
264 | tkRunning => \&tkRunning, |
7a2e2cd6 |
265 | ornaments => \&ornaments, |
363b4d59 |
266 | RemotePort => \&RemotePort, |
d338d6fe |
267 | ); |
268 | |
269 | %optionRequire = ( |
270 | compactDump => 'dumpvar.pl', |
271 | veryCompact => 'dumpvar.pl', |
272 | quote => 'dumpvar.pl', |
273 | ); |
274 | |
275 | # These guys may be defined in $ENV{PERL5DB} : |
4c82ae22 |
276 | $rl = 1 unless defined $rl; |
277 | $warnLevel = 0 unless defined $warnLevel; |
278 | $dieLevel = 0 unless defined $dieLevel; |
279 | $signalLevel = 1 unless defined $signalLevel; |
280 | $pre = [] unless defined $pre; |
281 | $post = [] unless defined $post; |
282 | $pretype = [] unless defined $pretype; |
055fd3a9 |
283 | |
d338d6fe |
284 | warnLevel($warnLevel); |
285 | dieLevel($dieLevel); |
286 | signalLevel($signalLevel); |
055fd3a9 |
287 | |
288 | &pager( |
289 | (defined($ENV{PAGER}) |
65c9c81d |
290 | ? $ENV{PAGER} |
291 | : ($^O eq 'os2' |
292 | ? 'cmd /c more' |
293 | : 'more'))) unless defined $pager; |
055fd3a9 |
294 | setman(); |
d338d6fe |
295 | &recallCommand("!") unless defined $prc; |
296 | &shellBang("!") unless defined $psh; |
1d06cb2d |
297 | $maxtrace = 400 unless defined $maxtrace; |
d338d6fe |
298 | |
055fd3a9 |
299 | if (-e "/dev/tty") { # this is the wrong metric! |
d338d6fe |
300 | $rcfile=".perldb"; |
301 | } else { |
302 | $rcfile="perldb.ini"; |
303 | } |
304 | |
055fd3a9 |
305 | # This isn't really safe, because there's a race |
306 | # between checking and opening. The solution is to |
307 | # open and fstat the handle, but then you have to read and |
308 | # eval the contents. But then the silly thing gets |
309 | # your lexical scope, which is unfortunately at best. |
310 | sub safe_do { |
311 | my $file = shift; |
312 | |
313 | # Just exactly what part of the word "CORE::" don't you understand? |
314 | local $SIG{__WARN__}; |
315 | local $SIG{__DIE__}; |
316 | |
317 | unless (is_safe_file($file)) { |
318 | CORE::warn <<EO_GRIPE; |
319 | perldb: Must not source insecure rcfile $file. |
320 | You or the superuser must be the owner, and it must not |
321 | be writable by anyone but its owner. |
322 | EO_GRIPE |
323 | return; |
324 | } |
325 | |
326 | do $file; |
327 | CORE::warn("perldb: couldn't parse $file: $@") if $@; |
328 | } |
329 | |
330 | |
331 | # Verifies that owner is either real user or superuser and that no |
332 | # one but owner may write to it. This function is of limited use |
333 | # when called on a path instead of upon a handle, because there are |
334 | # no guarantees that filename (by dirent) whose file (by ino) is |
335 | # eventually accessed is the same as the one tested. |
336 | # Assumes that the file's existence is not in doubt. |
337 | sub is_safe_file { |
338 | my $path = shift; |
339 | stat($path) || return; # mysteriously vaporized |
340 | my($dev,$ino,$mode,$nlink,$uid,$gid) = stat(_); |
341 | |
342 | return 0 if $uid != 0 && $uid != $<; |
343 | return 0 if $mode & 022; |
344 | return 1; |
345 | } |
346 | |
d338d6fe |
347 | if (-f $rcfile) { |
055fd3a9 |
348 | safe_do("./$rcfile"); |
349 | } |
350 | elsif (defined $ENV{HOME} && -f "$ENV{HOME}/$rcfile") { |
351 | safe_do("$ENV{HOME}/$rcfile"); |
352 | } |
353 | elsif (defined $ENV{LOGDIR} && -f "$ENV{LOGDIR}/$rcfile") { |
354 | safe_do("$ENV{LOGDIR}/$rcfile"); |
d338d6fe |
355 | } |
356 | |
357 | if (defined $ENV{PERLDB_OPTS}) { |
358 | parse_options($ENV{PERLDB_OPTS}); |
359 | } |
360 | |
055fd3a9 |
361 | # Here begin the unreadable code. It needs fixing. |
362 | |
54d04a52 |
363 | if (exists $ENV{PERLDB_RESTART}) { |
364 | delete $ENV{PERLDB_RESTART}; |
365 | # $restart = 1; |
366 | @hist = get_list('PERLDB_HIST'); |
55497cff |
367 | %break_on_load = get_list("PERLDB_ON_LOAD"); |
368 | %postponed = get_list("PERLDB_POSTPONE"); |
369 | my @had_breakpoints= get_list("PERLDB_VISITED"); |
370 | for (0 .. $#had_breakpoints) { |
0c395bd7 |
371 | my %pf = get_list("PERLDB_FILE_$_"); |
372 | $postponed_file{$had_breakpoints[$_]} = \%pf if %pf; |
54d04a52 |
373 | } |
374 | my %opt = get_list("PERLDB_OPT"); |
375 | my ($opt,$val); |
376 | while (($opt,$val) = each %opt) { |
377 | $val =~ s/[\\\']/\\$1/g; |
378 | parse_options("$opt'$val'"); |
379 | } |
380 | @INC = get_list("PERLDB_INC"); |
381 | @ini_INC = @INC; |
43aed9ee |
382 | $pretype = [get_list("PERLDB_PRETYPE")]; |
383 | $pre = [get_list("PERLDB_PRE")]; |
384 | $post = [get_list("PERLDB_POST")]; |
385 | @typeahead = get_list("PERLDB_TYPEAHEAD", @typeahead); |
54d04a52 |
386 | } |
387 | |
d338d6fe |
388 | if ($notty) { |
389 | $runnonstop = 1; |
390 | } else { |
055fd3a9 |
391 | # Is Perl being run from a slave editor or graphical debugger? |
392 | $slave_editor = ((defined $main::ARGV[0]) and ($main::ARGV[0] eq '-emacs')); |
393 | $rl = 0, shift(@main::ARGV) if $slave_editor; |
d338d6fe |
394 | |
395 | #require Term::ReadLine; |
396 | |
4fabb596 |
397 | if ($^O eq 'cygwin') { |
8736538c |
398 | # /dev/tty is binary. use stdin for textmode |
399 | undef $console; |
400 | } elsif (-e "/dev/tty") { |
d338d6fe |
401 | $console = "/dev/tty"; |
39e571d4 |
402 | } elsif ($^O eq 'dos' or -e "con" or $^O eq 'MSWin32') { |
d338d6fe |
403 | $console = "con"; |
404 | } else { |
405 | $console = "sys\$command"; |
406 | } |
407 | |
055fd3a9 |
408 | if (($^O eq 'MSWin32') and ($slave_editor or defined $ENV{EMACS})) { |
96774cc9 |
409 | $console = undef; |
410 | } |
411 | |
d338d6fe |
412 | # Around a bug: |
055fd3a9 |
413 | if (defined $ENV{OS2_SHELL} and ($slave_editor or $ENV{WINDOWID})) { # In OS/2 |
d338d6fe |
414 | $console = undef; |
415 | } |
416 | |
4d2c4e07 |
417 | if ($^O eq 'epoc') { |
418 | $console = undef; |
419 | } |
420 | |
d338d6fe |
421 | $console = $tty if defined $tty; |
422 | |
363b4d59 |
423 | if (defined $remoteport) { |
424 | require IO::Socket; |
425 | $OUT = new IO::Socket::INET( Timeout => '10', |
426 | PeerAddr => $remoteport, |
427 | Proto => 'tcp', |
428 | ); |
429 | if (!$OUT) { die "Could not create socket to connect to remote host."; } |
430 | $IN = $OUT; |
d338d6fe |
431 | } |
363b4d59 |
432 | else { |
433 | if (defined $console) { |
434 | open(IN,"+<$console") || open(IN,"<$console") || open(IN,"<&STDIN"); |
435 | open(OUT,"+>$console") || open(OUT,">$console") || open(OUT,">&STDERR") |
436 | || open(OUT,">&STDOUT"); # so we don't dongle stdout |
437 | } else { |
438 | open(IN,"<&STDIN"); |
439 | open(OUT,">&STDERR") || open(OUT,">&STDOUT"); # so we don't dongle stdout |
440 | $console = 'STDIN/OUT'; |
441 | } |
442 | # so open("|more") can read from STDOUT and so we don't dingle stdin |
443 | $IN = \*IN; |
d338d6fe |
444 | |
363b4d59 |
445 | $OUT = \*OUT; |
446 | } |
d338d6fe |
447 | select($OUT); |
448 | $| = 1; # for DB::OUT |
449 | select(STDOUT); |
450 | |
451 | $LINEINFO = $OUT unless defined $LINEINFO; |
452 | $lineinfo = $console unless defined $lineinfo; |
453 | |
454 | $| = 1; # for real STDOUT |
455 | |
456 | $header =~ s/.Header: ([^,]+),v(\s+\S+\s+\S+).*$/$1$2/; |
457 | unless ($runnonstop) { |
458 | print $OUT "\nLoading DB routines from $header\n"; |
055fd3a9 |
459 | print $OUT ("Editor support ", |
460 | $slave_editor ? "enabled" : "available", |
d338d6fe |
461 | ".\n"); |
055fd3a9 |
462 | print $OUT "\nEnter h or `h h' for help, or `$doccmd perldebug' for more help.\n\n"; |
d338d6fe |
463 | } |
464 | } |
465 | |
466 | @ARGS = @ARGV; |
467 | for (@args) { |
468 | s/\'/\\\'/g; |
469 | s/(.*)/'$1'/ unless /^-?[\d.]+$/; |
470 | } |
471 | |
472 | if (defined &afterinit) { # May be defined in $rcfile |
473 | &afterinit(); |
474 | } |
475 | |
43aed9ee |
476 | $I_m_init = 1; |
477 | |
d338d6fe |
478 | ############################################################ Subroutines |
479 | |
d338d6fe |
480 | sub DB { |
36477c24 |
481 | # _After_ the perl program is compiled, $single is set to 1: |
482 | if ($single and not $second_time++) { |
483 | if ($runnonstop) { # Disable until signal |
f8b5b99c |
484 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe |
485 | $stack[$i++] &= ~1; |
486 | } |
54d04a52 |
487 | $single = 0; |
36477c24 |
488 | # return; # Would not print trace! |
3aefca04 |
489 | } elsif ($ImmediateStop) { |
490 | $ImmediateStop = 0; |
491 | $signal = 1; |
54d04a52 |
492 | } |
d338d6fe |
493 | } |
36477c24 |
494 | $runnonstop = 0 if $single or $signal; # Disable it if interactive. |
d338d6fe |
495 | &save; |
d338d6fe |
496 | ($package, $filename, $line) = caller; |
54d04a52 |
497 | $filename_ini = $filename; |
22fae026 |
498 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
d338d6fe |
499 | "package $package;"; # this won't let them modify, alas |
8ebc5c01 |
500 | local(*dbline) = $main::{'_<' . $filename}; |
d338d6fe |
501 | $max = $#dbline; |
502 | if (($stop,$action) = split(/\0/,$dbline{$line})) { |
503 | if ($stop eq '1') { |
504 | $signal |= 1; |
54d04a52 |
505 | } elsif ($stop) { |
3f521411 |
506 | $evalarg = "\$DB::signal |= 1 if do {$stop}"; &eval; |
d338d6fe |
507 | $dbline{$line} =~ s/;9($|\0)/$1/; |
508 | } |
509 | } |
36477c24 |
510 | my $was_signal = $signal; |
6027b9a3 |
511 | if ($trace & 2) { |
512 | for (my $n = 0; $n <= $#to_watch; $n++) { |
513 | $evalarg = $to_watch[$n]; |
ed0d1bf7 |
514 | local $onetimeDump; # Do not output results |
6027b9a3 |
515 | my ($val) = &eval; # Fix context (&eval is doing array)? |
516 | $val = ( (defined $val) ? "'$val'" : 'undef' ); |
517 | if ($val ne $old_watch[$n]) { |
518 | $signal = 1; |
519 | print $OUT <<EOP; |
405ff068 |
520 | Watchpoint $n:\t$to_watch[$n] changed: |
521 | old value:\t$old_watch[$n] |
522 | new value:\t$val |
6027b9a3 |
523 | EOP |
524 | $old_watch[$n] = $val; |
525 | } |
526 | } |
527 | } |
528 | if ($trace & 4) { # User-installed watch |
529 | return if watchfunction($package, $filename, $line) |
530 | and not $single and not $was_signal and not ($trace & ~4); |
531 | } |
532 | $was_signal = $signal; |
36477c24 |
533 | $signal = 0; |
6027b9a3 |
534 | if ($single || ($trace & 1) || $was_signal) { |
055fd3a9 |
535 | if ($slave_editor) { |
54d04a52 |
536 | $position = "\032\032$filename:$line:0\n"; |
537 | print $LINEINFO $position; |
405ff068 |
538 | } elsif ($package eq 'DB::fake') { |
65c9c81d |
539 | $term || &setterm; |
405ff068 |
540 | print_help(<<EOP); |
541 | Debugged program terminated. Use B<q> to quit or B<R> to restart, |
542 | use B<O> I<inhibit_exit> to avoid stopping after program termination, |
543 | B<h q>, B<h R> or B<h O> to get additional info. |
544 | EOP |
545 | $package = 'main'; |
363b4d59 |
546 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
405ff068 |
547 | "package $package;"; # this won't let them modify, alas |
d338d6fe |
548 | } else { |
549 | $sub =~ s/\'/::/; |
550 | $prefix = $sub =~ /::/ ? "" : "${'package'}::"; |
551 | $prefix .= "$sub($filename:"; |
552 | $after = ($dbline[$line] =~ /\n$/ ? '' : "\n"); |
553 | if (length($prefix) > 30) { |
54d04a52 |
554 | $position = "$prefix$line):\n$line:\t$dbline[$line]$after"; |
d338d6fe |
555 | $prefix = ""; |
556 | $infix = ":\t"; |
557 | } else { |
558 | $infix = "):\t"; |
54d04a52 |
559 | $position = "$prefix$line$infix$dbline[$line]$after"; |
36477c24 |
560 | } |
561 | if ($frame) { |
f8b5b99c |
562 | print $LINEINFO ' ' x $stack_depth, "$line:\t$dbline[$line]$after"; |
36477c24 |
563 | } else { |
54d04a52 |
564 | print $LINEINFO $position; |
d338d6fe |
565 | } |
566 | for ($i = $line + 1; $i <= $max && $dbline[$i] == 0; ++$i) { #{ vi |
567 | last if $dbline[$i] =~ /^\s*[\;\}\#\n]/; |
36477c24 |
568 | last if $signal; |
d338d6fe |
569 | $after = ($dbline[$i] =~ /\n$/ ? '' : "\n"); |
54d04a52 |
570 | $incr_pos = "$prefix$i$infix$dbline[$i]$after"; |
54d04a52 |
571 | $position .= $incr_pos; |
36477c24 |
572 | if ($frame) { |
f8b5b99c |
573 | print $LINEINFO ' ' x $stack_depth, "$i:\t$dbline[$i]$after"; |
36477c24 |
574 | } else { |
575 | print $LINEINFO $incr_pos; |
576 | } |
d338d6fe |
577 | } |
578 | } |
579 | } |
580 | $evalarg = $action, &eval if $action; |
36477c24 |
581 | if ($single || $was_signal) { |
d338d6fe |
582 | local $level = $level + 1; |
e63173ce |
583 | foreach $evalarg (@$pre) { |
584 | &eval; |
585 | } |
f8b5b99c |
586 | print $OUT $stack_depth . " levels deep in subroutine calls!\n" |
d338d6fe |
587 | if $single & 4; |
588 | $start = $line; |
1d06cb2d |
589 | $incr = -1; # for backward motion. |
6657d1ba |
590 | @typeahead = (@$pretype, @typeahead); |
d338d6fe |
591 | CMD: |
592 | while (($term || &setterm), |
f36776d9 |
593 | ($term_pid == $$ or &resetterm), |
54d04a52 |
594 | defined ($cmd=&readline(" DB" . ('<' x $level) . |
595 | ($#hist+1) . ('>' x $level) . |
055fd3a9 |
596 | " "))) |
597 | { |
d338d6fe |
598 | $single = 0; |
599 | $signal = 0; |
600 | $cmd =~ s/\\$/\n/ && do { |
54d04a52 |
601 | $cmd .= &readline(" cont: "); |
d338d6fe |
602 | redo CMD; |
603 | }; |
d338d6fe |
604 | $cmd =~ /^$/ && ($cmd = $laststep); |
605 | push(@hist,$cmd) if length($cmd) > 1; |
606 | PIPE: { |
3dcd9d33 |
607 | $cmd =~ s/^\s+//s; # trim annoying leading whitespace |
608 | $cmd =~ s/\s+$//s; # trim annoying trailing whitespace |
d338d6fe |
609 | ($i) = split(/\s+/,$cmd); |
055fd3a9 |
610 | if ($alias{$i}) { |
3dcd9d33 |
611 | # squelch the sigmangler |
612 | local $SIG{__DIE__}; |
613 | local $SIG{__WARN__}; |
055fd3a9 |
614 | eval "\$cmd =~ $alias{$i}"; |
3dcd9d33 |
615 | if ($@) { |
616 | print $OUT "Couldn't evaluate `$i' alias: $@"; |
617 | next CMD; |
618 | } |
055fd3a9 |
619 | } |
477ea2b1 |
620 | $cmd =~ /^q$/ && ($exiting = 1) && exit 0; |
d338d6fe |
621 | $cmd =~ /^h$/ && do { |
6027b9a3 |
622 | print_help($help); |
d338d6fe |
623 | next CMD; }; |
624 | $cmd =~ /^h\s+h$/ && do { |
6027b9a3 |
625 | print_help($summary); |
d338d6fe |
626 | next CMD; }; |
055fd3a9 |
627 | # support long commands; otherwise bogus errors |
628 | # happen when you ask for h on <CR> for example |
629 | $cmd =~ /^h\s+(\S.*)$/ && do { |
630 | my $asked = $1; # for proper errmsg |
631 | my $qasked = quotemeta($asked); # for searching |
632 | # XXX: finds CR but not <CR> |
633 | if ($help =~ /^<?(?:[IB]<)$qasked/m) { |
634 | while ($help =~ /^(<?(?:[IB]<)$qasked([\s\S]*?)\n)(?!\s)/mg) { |
6027b9a3 |
635 | print_help($1); |
55497cff |
636 | } |
d338d6fe |
637 | } else { |
6027b9a3 |
638 | print_help("B<$asked> is not a debugger command.\n"); |
d338d6fe |
639 | } |
640 | next CMD; }; |
641 | $cmd =~ /^t$/ && do { |
3fbd6552 |
642 | $trace ^= 1; |
6027b9a3 |
643 | print $OUT "Trace = " . |
644 | (($trace & 1) ? "on" : "off" ) . "\n"; |
d338d6fe |
645 | next CMD; }; |
646 | $cmd =~ /^S(\s+(!)?(.+))?$/ && do { |
647 | $Srev = defined $2; $Spatt = $3; $Snocheck = ! defined $1; |
648 | foreach $subname (sort(keys %sub)) { |
649 | if ($Snocheck or $Srev^($subname =~ /$Spatt/)) { |
650 | print $OUT $subname,"\n"; |
651 | } |
652 | } |
653 | next CMD; }; |
ee971a18 |
654 | $cmd =~ /^v$/ && do { |
655 | list_versions(); next CMD}; |
d338d6fe |
656 | $cmd =~ s/^X\b/V $package/; |
657 | $cmd =~ /^V$/ && do { |
658 | $cmd = "V $package"; }; |
659 | $cmd =~ /^V\b\s*(\S+)\s*(.*)/ && do { |
660 | local ($savout) = select($OUT); |
661 | $packname = $1; |
662 | @vars = split(' ',$2); |
663 | do 'dumpvar.pl' unless defined &main::dumpvar; |
664 | if (defined &main::dumpvar) { |
54d04a52 |
665 | local $frame = 0; |
ee971a18 |
666 | local $doret = -2; |
055fd3a9 |
667 | # must detect sigpipe failures |
668 | eval { &main::dumpvar($packname,@vars) }; |
669 | if ($@) { |
670 | die unless $@ =~ /dumpvar print failed/; |
671 | } |
d338d6fe |
672 | } else { |
673 | print $OUT "dumpvar.pl not available.\n"; |
674 | } |
675 | select ($savout); |
676 | next CMD; }; |
677 | $cmd =~ s/^x\b/ / && do { # So that will be evaled |
1d06cb2d |
678 | $onetimeDump = 'dump'; }; |
679 | $cmd =~ s/^m\s+([\w:]+)\s*$/ / && do { |
680 | methods($1); next CMD}; |
681 | $cmd =~ s/^m\b/ / && do { # So this will be evaled |
682 | $onetimeDump = 'methods'; }; |
d338d6fe |
683 | $cmd =~ /^f\b\s*(.*)/ && do { |
684 | $file = $1; |
477ea2b1 |
685 | $file =~ s/\s+$//; |
d338d6fe |
686 | if (!$file) { |
687 | print $OUT "The old f command is now the r command.\n"; |
688 | print $OUT "The new f command switches filenames.\n"; |
689 | next CMD; |
690 | } |
691 | if (!defined $main::{'_<' . $file}) { |
692 | if (($try) = grep(m#^_<.*$file#, keys %main::)) {{ |
477ea2b1 |
693 | $try = substr($try,2); |
694 | print $OUT "Choosing $try matching `$file':\n"; |
695 | $file = $try; |
d338d6fe |
696 | }} |
697 | } |
698 | if (!defined $main::{'_<' . $file}) { |
04fb8f4b |
699 | print $OUT "No file matching `$file' is loaded.\n"; |
d338d6fe |
700 | next CMD; |
701 | } elsif ($file ne $filename) { |
8ebc5c01 |
702 | *dbline = $main::{'_<' . $file}; |
d338d6fe |
703 | $max = $#dbline; |
704 | $filename = $file; |
705 | $start = 1; |
706 | $cmd = "l"; |
477ea2b1 |
707 | } else { |
708 | print $OUT "Already in $file.\n"; |
709 | next CMD; |
710 | } |
711 | }; |
1d06cb2d |
712 | $cmd =~ s/^l\s+-\s*$/-/; |
83ee9e09 |
713 | $cmd =~ /^([lb])\b\s*(\$.*)/s && do { |
714 | $evalarg = $2; |
715 | my ($s) = &eval; |
716 | print($OUT "Error: $@\n"), next CMD if $@; |
717 | $s = CvGV_name($s); |
718 | print($OUT "Interpreted as: $1 $s\n"); |
719 | $cmd = "$1 $s"; |
720 | }; |
721 | $cmd =~ /^l\b\s*([\':A-Za-z_][\':\w]*(\[.*\])?)/s && do { |
d338d6fe |
722 | $subname = $1; |
723 | $subname =~ s/\'/::/; |
477ea2b1 |
724 | $subname = $package."::".$subname |
725 | unless $subname =~ /::/; |
d338d6fe |
726 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
83ee9e09 |
727 | @pieces = split(/:/,find_sub($subname) || $sub{$subname}); |
d338d6fe |
728 | $subrange = pop @pieces; |
729 | $file = join(':', @pieces); |
730 | if ($file ne $filename) { |
bee32ff8 |
731 | print $OUT "Switching to file '$file'.\n" |
055fd3a9 |
732 | unless $slave_editor; |
8ebc5c01 |
733 | *dbline = $main::{'_<' . $file}; |
d338d6fe |
734 | $max = $#dbline; |
735 | $filename = $file; |
736 | } |
737 | if ($subrange) { |
738 | if (eval($subrange) < -$window) { |
739 | $subrange =~ s/-.*/+/; |
740 | } |
741 | $cmd = "l $subrange"; |
742 | } else { |
743 | print $OUT "Subroutine $subname not found.\n"; |
744 | next CMD; |
745 | } }; |
54d04a52 |
746 | $cmd =~ /^\.$/ && do { |
1d06cb2d |
747 | $incr = -1; # for backward motion. |
54d04a52 |
748 | $start = $line; |
749 | $filename = $filename_ini; |
8ebc5c01 |
750 | *dbline = $main::{'_<' . $filename}; |
54d04a52 |
751 | $max = $#dbline; |
752 | print $LINEINFO $position; |
753 | next CMD }; |
d338d6fe |
754 | $cmd =~ /^w\b\s*(\d*)$/ && do { |
755 | $incr = $window - 1; |
756 | $start = $1 if $1; |
757 | $start -= $preview; |
54d04a52 |
758 | #print $OUT 'l ' . $start . '-' . ($start + $incr); |
d338d6fe |
759 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
760 | $cmd =~ /^-$/ && do { |
1d06cb2d |
761 | $start -= $incr + $window + 1; |
762 | $start = 1 if $start <= 0; |
d338d6fe |
763 | $incr = $window - 1; |
1d06cb2d |
764 | $cmd = 'l ' . ($start) . '+'; }; |
d338d6fe |
765 | $cmd =~ /^l$/ && do { |
766 | $incr = $window - 1; |
767 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
768 | $cmd =~ /^l\b\s*(\d*)\+(\d*)$/ && do { |
769 | $start = $1 if $1; |
770 | $incr = $2; |
771 | $incr = $window - 1 unless $incr; |
772 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
54d04a52 |
773 | $cmd =~ /^l\b\s*((-?[\d\$\.]+)([-,]([\d\$\.]+))?)?/ && do { |
774 | $end = (!defined $2) ? $max : ($4 ? $4 : $2); |
d338d6fe |
775 | $end = $max if $end > $max; |
776 | $i = $2; |
777 | $i = $line if $i eq '.'; |
778 | $i = 1 if $i < 1; |
1d06cb2d |
779 | $incr = $end - $i; |
055fd3a9 |
780 | if ($slave_editor) { |
d338d6fe |
781 | print $OUT "\032\032$filename:$i:0\n"; |
782 | $i = $end; |
783 | } else { |
784 | for (; $i <= $end; $i++) { |
54d04a52 |
785 | ($stop,$action) = split(/\0/, $dbline{$i}); |
786 | $arrow = ($i==$line |
787 | and $filename eq $filename_ini) |
788 | ? '==>' |
36477c24 |
789 | : ($dbline[$i]+0 ? ':' : ' ') ; |
54d04a52 |
790 | $arrow .= 'b' if $stop; |
791 | $arrow .= 'a' if $action; |
792 | print $OUT "$i$arrow\t", $dbline[$i]; |
65c9c81d |
793 | $i++, last if $signal; |
d338d6fe |
794 | } |
65c9c81d |
795 | print $OUT "\n" unless $dbline[$i-1] =~ /\n$/; |
d338d6fe |
796 | } |
797 | $start = $i; # remember in case they want more |
798 | $start = $max if $start > $max; |
799 | next CMD; }; |
800 | $cmd =~ /^D$/ && do { |
55497cff |
801 | print $OUT "Deleting all breakpoints...\n"; |
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]+//; |
811 | if ($dbline{$i} =~ s/^\0?$//) { |
812 | delete $dbline{$i}; |
813 | } |
814 | } |
815 | } |
3fbd6552 |
816 | |
817 | if (not $had_breakpoints{$file} &= ~1) { |
818 | delete $had_breakpoints{$file}; |
819 | } |
55497cff |
820 | } |
821 | undef %postponed; |
822 | undef %postponed_file; |
823 | undef %break_on_load; |
55497cff |
824 | next CMD; }; |
d338d6fe |
825 | $cmd =~ /^L$/ && do { |
55497cff |
826 | my $file; |
827 | for $file (keys %had_breakpoints) { |
8ebc5c01 |
828 | local *dbline = $main::{'_<' . $file}; |
55497cff |
829 | my $max = $#dbline; |
830 | my $was; |
831 | |
d338d6fe |
832 | for ($i = 1; $i <= $max; $i++) { |
833 | if (defined $dbline{$i}) { |
2002527a |
834 | print $OUT "$file:\n" unless $was++; |
55497cff |
835 | print $OUT " $i:\t", $dbline[$i]; |
d338d6fe |
836 | ($stop,$action) = split(/\0/, $dbline{$i}); |
55497cff |
837 | print $OUT " break if (", $stop, ")\n" |
d338d6fe |
838 | if $stop; |
55497cff |
839 | print $OUT " action: ", $action, "\n" |
d338d6fe |
840 | if $action; |
841 | last if $signal; |
842 | } |
843 | } |
55497cff |
844 | } |
845 | if (%postponed) { |
846 | print $OUT "Postponed breakpoints in subroutines:\n"; |
847 | my $subname; |
848 | for $subname (keys %postponed) { |
849 | print $OUT " $subname\t$postponed{$subname}\n"; |
850 | last if $signal; |
851 | } |
852 | } |
853 | my @have = map { # Combined keys |
854 | keys %{$postponed_file{$_}} |
855 | } keys %postponed_file; |
856 | if (@have) { |
857 | print $OUT "Postponed breakpoints in files:\n"; |
858 | my ($file, $line); |
859 | for $file (keys %postponed_file) { |
0c395bd7 |
860 | my $db = $postponed_file{$file}; |
55497cff |
861 | print $OUT " $file:\n"; |
0c395bd7 |
862 | for $line (sort {$a <=> $b} keys %$db) { |
08a4aec0 |
863 | print $OUT " $line:\n"; |
0c395bd7 |
864 | my ($stop,$action) = split(/\0/, $$db{$line}); |
55497cff |
865 | print $OUT " break if (", $stop, ")\n" |
866 | if $stop; |
867 | print $OUT " action: ", $action, "\n" |
868 | if $action; |
869 | last if $signal; |
870 | } |
871 | last if $signal; |
872 | } |
873 | } |
874 | if (%break_on_load) { |
875 | print $OUT "Breakpoints on load:\n"; |
876 | my $file; |
877 | for $file (keys %break_on_load) { |
878 | print $OUT " $file\n"; |
879 | last if $signal; |
880 | } |
881 | } |
6027b9a3 |
882 | if ($trace & 2) { |
883 | print $OUT "Watch-expressions:\n"; |
884 | my $expr; |
885 | for $expr (@to_watch) { |
886 | print $OUT " $expr\n"; |
887 | last if $signal; |
888 | } |
889 | } |
55497cff |
890 | next CMD; }; |
891 | $cmd =~ /^b\b\s*load\b\s*(.*)/ && do { |
477ea2b1 |
892 | my $file = $1; $file =~ s/\s+$//; |
55497cff |
893 | { |
894 | $break_on_load{$file} = 1; |
895 | $break_on_load{$::INC{$file}} = 1 if $::INC{$file}; |
896 | $file .= '.pm', redo unless $file =~ /\./; |
897 | } |
3fbd6552 |
898 | $had_breakpoints{$file} |= 1; |
55497cff |
899 | print $OUT "Will stop on load of `@{[join '\', `', sort keys %break_on_load]}'.\n"; |
900 | next CMD; }; |
1d06cb2d |
901 | $cmd =~ /^b\b\s*(postpone|compile)\b\s*([':A-Za-z_][':\w]*)\s*(.*)/ && do { |
902 | my $cond = $3 || '1'; |
903 | my ($subname, $break) = ($2, $1 eq 'postpone'); |
55497cff |
904 | $subname =~ s/\'/::/; |
905 | $subname = "${'package'}::" . $subname |
906 | unless $subname =~ /::/; |
907 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
1d06cb2d |
908 | $postponed{$subname} = $break |
909 | ? "break +0 if $cond" : "compile"; |
d338d6fe |
910 | next CMD; }; |
83ee9e09 |
911 | $cmd =~ /^b\b\s*([':A-Za-z_][':\w]*(?:\[.*\])?)\s*(.*)/ && do { |
d338d6fe |
912 | $subname = $1; |
913 | $cond = $2 || '1'; |
914 | $subname =~ s/\'/::/; |
915 | $subname = "${'package'}::" . $subname |
916 | unless $subname =~ /::/; |
917 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
918 | # Filename below can contain ':' |
1d06cb2d |
919 | ($file,$i) = (find_sub($subname) =~ /^(.*):(.*)$/); |
d338d6fe |
920 | $i += 0; |
921 | if ($i) { |
bee32ff8 |
922 | local $filename = $file; |
923 | local *dbline = $main::{'_<' . $filename}; |
3fbd6552 |
924 | $had_breakpoints{$filename} |= 1; |
d338d6fe |
925 | $max = $#dbline; |
926 | ++$i while $dbline[$i] == 0 && $i < $max; |
927 | $dbline{$i} =~ s/^[^\0]*/$cond/; |
928 | } else { |
929 | print $OUT "Subroutine $subname not found.\n"; |
930 | } |
931 | next CMD; }; |
932 | $cmd =~ /^b\b\s*(\d*)\s*(.*)/ && do { |
3fbd6552 |
933 | $i = $1 || $line; |
d338d6fe |
934 | $cond = $2 || '1'; |
935 | if ($dbline[$i] == 0) { |
936 | print $OUT "Line $i not breakable.\n"; |
937 | } else { |
3fbd6552 |
938 | $had_breakpoints{$filename} |= 1; |
d338d6fe |
939 | $dbline{$i} =~ s/^[^\0]*/$cond/; |
940 | } |
941 | next CMD; }; |
3fbd6552 |
942 | $cmd =~ /^d\b\s*(\d*)/ && do { |
943 | $i = $1 || $line; |
d338d6fe |
944 | $dbline{$i} =~ s/^[^\0]*//; |
945 | delete $dbline{$i} if $dbline{$i} eq ''; |
946 | next CMD; }; |
947 | $cmd =~ /^A$/ && do { |
3fbd6552 |
948 | print $OUT "Deleting all actions...\n"; |
55497cff |
949 | my $file; |
950 | for $file (keys %had_breakpoints) { |
8ebc5c01 |
951 | local *dbline = $main::{'_<' . $file}; |
55497cff |
952 | my $max = $#dbline; |
953 | my $was; |
954 | |
d338d6fe |
955 | for ($i = 1; $i <= $max ; $i++) { |
956 | if (defined $dbline{$i}) { |
957 | $dbline{$i} =~ s/\0[^\0]*//; |
958 | delete $dbline{$i} if $dbline{$i} eq ''; |
959 | } |
960 | } |
3fbd6552 |
961 | |
055fd3a9 |
962 | unless ($had_breakpoints{$file} &= ~2) { |
3fbd6552 |
963 | delete $had_breakpoints{$file}; |
964 | } |
55497cff |
965 | } |
966 | next CMD; }; |
d338d6fe |
967 | $cmd =~ /^O\s*$/ && do { |
968 | for (@options) { |
969 | &dump_option($_); |
970 | } |
971 | next CMD; }; |
972 | $cmd =~ /^O\s*(\S.*)/ && do { |
973 | parse_options($1); |
974 | next CMD; }; |
55497cff |
975 | $cmd =~ /^\<\<\s*(.*)/ && do { # \<\< for CPerl sake: not HERE |
976 | push @$pre, action($1); |
977 | next CMD; }; |
978 | $cmd =~ /^>>\s*(.*)/ && do { |
979 | push @$post, action($1); |
980 | next CMD; }; |
d338d6fe |
981 | $cmd =~ /^<\s*(.*)/ && do { |
055fd3a9 |
982 | unless ($1) { |
983 | print OUT "All < actions cleared.\n"; |
984 | $pre = []; |
985 | next CMD; |
986 | } |
987 | if ($1 eq '?') { |
988 | unless (@$pre) { |
989 | print OUT "No pre-prompt Perl actions.\n"; |
990 | next CMD; |
991 | } |
992 | print OUT "Perl commands run before each prompt:\n"; |
993 | for my $action ( @$pre ) { |
994 | print "\t< -- $action\n"; |
995 | } |
996 | next CMD; |
997 | } |
55497cff |
998 | $pre = [action($1)]; |
d338d6fe |
999 | next CMD; }; |
1000 | $cmd =~ /^>\s*(.*)/ && do { |
055fd3a9 |
1001 | unless ($1) { |
1002 | print OUT "All > actions cleared.\n"; |
1003 | $post = []; |
1004 | next CMD; |
1005 | } |
1006 | if ($1 eq '?') { |
1007 | unless (@$post) { |
1008 | print OUT "No post-prompt Perl actions.\n"; |
1009 | next CMD; |
1010 | } |
1011 | print OUT "Perl commands run after each prompt:\n"; |
1012 | for my $action ( @$post ) { |
1013 | print "\t> -- $action\n"; |
1014 | } |
1015 | next CMD; |
1016 | } |
55497cff |
1017 | $post = [action($1)]; |
1018 | next CMD; }; |
1019 | $cmd =~ /^\{\{\s*(.*)/ && do { |
055fd3a9 |
1020 | if ($cmd =~ /^\{.*\}$/ && unbalanced(substr($cmd,2))) { |
1021 | print OUT "{{ is now a debugger command\n", |
1022 | "use `;{{' if you mean Perl code\n"; |
1023 | $cmd = "h {{"; |
1024 | redo CMD; |
1025 | } |
55497cff |
1026 | push @$pretype, $1; |
1027 | next CMD; }; |
1028 | $cmd =~ /^\{\s*(.*)/ && do { |
055fd3a9 |
1029 | unless ($1) { |
1030 | print OUT "All { actions cleared.\n"; |
1031 | $pretype = []; |
1032 | next CMD; |
1033 | } |
1034 | if ($1 eq '?') { |
1035 | unless (@$pretype) { |
1036 | print OUT "No pre-prompt debugger actions.\n"; |
1037 | next CMD; |
1038 | } |
1039 | print OUT "Debugger commands run before each prompt:\n"; |
1040 | for my $action ( @$pretype ) { |
1041 | print "\t{ -- $action\n"; |
1042 | } |
1043 | next CMD; |
1044 | } |
1045 | if ($cmd =~ /^\{.*\}$/ && unbalanced(substr($cmd,1))) { |
1046 | print OUT "{ is now a debugger command\n", |
1047 | "use `;{' if you mean Perl code\n"; |
1048 | $cmd = "h {"; |
1049 | redo CMD; |
1050 | } |
55497cff |
1051 | $pretype = [$1]; |
d338d6fe |
1052 | next CMD; }; |
3fbd6552 |
1053 | $cmd =~ /^a\b\s*(\d*)\s*(.*)/ && do { |
1054 | $i = $1 || $line; $j = $2; |
1055 | if (length $j) { |
1056 | if ($dbline[$i] == 0) { |
1057 | print $OUT "Line $i may not have an action.\n"; |
1058 | } else { |
1059 | $had_breakpoints{$filename} |= 2; |
1060 | $dbline{$i} =~ s/\0[^\0]*//; |
1061 | $dbline{$i} .= "\0" . action($j); |
1062 | } |
d338d6fe |
1063 | } else { |
1064 | $dbline{$i} =~ s/\0[^\0]*//; |
3fbd6552 |
1065 | delete $dbline{$i} if $dbline{$i} eq ''; |
d338d6fe |
1066 | } |
1067 | next CMD; }; |
1068 | $cmd =~ /^n$/ && do { |
4639966b |
1069 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe |
1070 | $single = 2; |
1071 | $laststep = $cmd; |
1072 | last CMD; }; |
1073 | $cmd =~ /^s$/ && do { |
4639966b |
1074 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe |
1075 | $single = 1; |
1076 | $laststep = $cmd; |
1077 | last CMD; }; |
54d04a52 |
1078 | $cmd =~ /^c\b\s*([\w:]*)\s*$/ && do { |
4639966b |
1079 | end_report(), next CMD if $finished and $level <= 1; |
fb73857a |
1080 | $subname = $i = $1; |
bee32ff8 |
1081 | # Probably not needed, since we finish an interactive |
1082 | # sub-session anyway... |
1083 | # local $filename = $filename; |
1084 | # local *dbline = *dbline; # XXX Would this work?! |
54d04a52 |
1085 | if ($i =~ /\D/) { # subroutine name |
fb73857a |
1086 | $subname = $package."::".$subname |
1087 | unless $subname =~ /::/; |
1088 | ($file,$i) = (find_sub($subname) =~ /^(.*):(.*)$/); |
54d04a52 |
1089 | $i += 0; |
1090 | if ($i) { |
1091 | $filename = $file; |
8ebc5c01 |
1092 | *dbline = $main::{'_<' . $filename}; |
3fbd6552 |
1093 | $had_breakpoints{$filename} |= 1; |
54d04a52 |
1094 | $max = $#dbline; |
1095 | ++$i while $dbline[$i] == 0 && $i < $max; |
1096 | } else { |
1097 | print $OUT "Subroutine $subname not found.\n"; |
1098 | next CMD; |
1099 | } |
1100 | } |
d338d6fe |
1101 | if ($i) { |
1102 | if ($dbline[$i] == 0) { |
1103 | print $OUT "Line $i not breakable.\n"; |
1104 | next CMD; |
1105 | } |
1106 | $dbline{$i} =~ s/($|\0)/;9$1/; # add one-time-only b.p. |
1107 | } |
f8b5b99c |
1108 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe |
1109 | $stack[$i++] &= ~1; |
1110 | } |
1111 | last CMD; }; |
1112 | $cmd =~ /^r$/ && do { |
4639966b |
1113 | end_report(), next CMD if $finished and $level <= 1; |
f8b5b99c |
1114 | $stack[$stack_depth] |= 1; |
1115 | $doret = $option{PrintRet} ? $stack_depth - 1 : -2; |
d338d6fe |
1116 | last CMD; }; |
54d04a52 |
1117 | $cmd =~ /^R$/ && do { |
55497cff |
1118 | print $OUT "Warning: some settings and command-line options may be lost!\n"; |
54d04a52 |
1119 | my (@script, @flags, $cl); |
1120 | push @flags, '-w' if $ini_warn; |
1121 | # Put all the old includes at the start to get |
1122 | # the same debugger. |
1123 | for (@ini_INC) { |
1124 | push @flags, '-I', $_; |
1125 | } |
1126 | # Arrange for setting the old INC: |
1127 | set_list("PERLDB_INC", @ini_INC); |
1128 | if ($0 eq '-e') { |
1129 | for (1..$#{'::_<-e'}) { # The first line is PERL5DB |
055fd3a9 |
1130 | chomp ($cl = ${'::_<-e'}[$_]); |
54d04a52 |
1131 | push @script, '-e', $cl; |
1132 | } |
1133 | } else { |
1134 | @script = $0; |
1135 | } |
1136 | set_list("PERLDB_HIST", |
1137 | $term->Features->{getHistory} |
1138 | ? $term->GetHistory : @hist); |
55497cff |
1139 | my @had_breakpoints = keys %had_breakpoints; |
1140 | set_list("PERLDB_VISITED", @had_breakpoints); |
54d04a52 |
1141 | set_list("PERLDB_OPT", %option); |
55497cff |
1142 | set_list("PERLDB_ON_LOAD", %break_on_load); |
1143 | my @hard; |
1144 | for (0 .. $#had_breakpoints) { |
1145 | my $file = $had_breakpoints[$_]; |
8ebc5c01 |
1146 | *dbline = $main::{'_<' . $file}; |
0c395bd7 |
1147 | next unless %dbline or $postponed_file{$file}; |
55497cff |
1148 | (push @hard, $file), next |
1149 | if $file =~ /^\(eval \d+\)$/; |
1150 | my @add; |
1151 | @add = %{$postponed_file{$file}} |
0c395bd7 |
1152 | if $postponed_file{$file}; |
55497cff |
1153 | set_list("PERLDB_FILE_$_", %dbline, @add); |
1154 | } |
1155 | for (@hard) { # Yes, really-really... |
1156 | # Find the subroutines in this eval |
8ebc5c01 |
1157 | *dbline = $main::{'_<' . $_}; |
55497cff |
1158 | my ($quoted, $sub, %subs, $line) = quotemeta $_; |
1159 | for $sub (keys %sub) { |
1160 | next unless $sub{$sub} =~ /^$quoted:(\d+)-(\d+)$/; |
1161 | $subs{$sub} = [$1, $2]; |
1162 | } |
1163 | unless (%subs) { |
1164 | print $OUT |
1165 | "No subroutines in $_, ignoring breakpoints.\n"; |
1166 | next; |
1167 | } |
1168 | LINES: for $line (keys %dbline) { |
1169 | # One breakpoint per sub only: |
1170 | my ($offset, $sub, $found); |
1171 | SUBS: for $sub (keys %subs) { |
1172 | if ($subs{$sub}->[1] >= $line # Not after the subroutine |
1173 | and (not defined $offset # Not caught |
1174 | or $offset < 0 )) { # or badly caught |
1175 | $found = $sub; |
1176 | $offset = $line - $subs{$sub}->[0]; |
1177 | $offset = "+$offset", last SUBS if $offset >= 0; |
1178 | } |
1179 | } |
1180 | if (defined $offset) { |
1181 | $postponed{$found} = |
1182 | "break $offset if $dbline{$line}"; |
1183 | } else { |
1184 | print $OUT "Breakpoint in $_:$line ignored: after all the subroutines.\n"; |
1185 | } |
1186 | } |
54d04a52 |
1187 | } |
55497cff |
1188 | set_list("PERLDB_POSTPONE", %postponed); |
43aed9ee |
1189 | set_list("PERLDB_PRETYPE", @$pretype); |
1190 | set_list("PERLDB_PRE", @$pre); |
1191 | set_list("PERLDB_POST", @$post); |
1192 | set_list("PERLDB_TYPEAHEAD", @typeahead); |
54d04a52 |
1193 | $ENV{PERLDB_RESTART} = 1; |
055fd3a9 |
1194 | #print "$^X, '-d', @flags, @script, ($slave_editor ? '-emacs' : ()), @ARGS"; |
1195 | exec $^X, '-d', @flags, @script, ($slave_editor ? '-emacs' : ()), @ARGS; |
54d04a52 |
1196 | print $OUT "exec failed: $!\n"; |
1197 | last CMD; }; |
d338d6fe |
1198 | $cmd =~ /^T$/ && do { |
36477c24 |
1199 | print_trace($OUT, 1); # skip DB |
d338d6fe |
1200 | next CMD; }; |
6027b9a3 |
1201 | $cmd =~ /^W\s*$/ && do { |
1202 | $trace &= ~2; |
1203 | @to_watch = @old_watch = (); |
1204 | next CMD; }; |
1205 | $cmd =~ /^W\b\s*(.*)/s && do { |
1206 | push @to_watch, $1; |
1207 | $evalarg = $1; |
1208 | my ($val) = &eval; |
1209 | $val = (defined $val) ? "'$val'" : 'undef' ; |
1210 | push @old_watch, $val; |
1211 | $trace |= 2; |
1212 | next CMD; }; |
d338d6fe |
1213 | $cmd =~ /^\/(.*)$/ && do { |
1214 | $inpat = $1; |
1215 | $inpat =~ s:([^\\])/$:$1:; |
1216 | if ($inpat ne "") { |
3dcd9d33 |
1217 | # squelch the sigmangler |
1218 | local $SIG{__DIE__}; |
1219 | local $SIG{__WARN__}; |
d338d6fe |
1220 | eval '$inpat =~ m'."\a$inpat\a"; |
1221 | if ($@ ne "") { |
1222 | print $OUT "$@"; |
1223 | next CMD; |
1224 | } |
1225 | $pat = $inpat; |
1226 | } |
1227 | $end = $start; |
1d06cb2d |
1228 | $incr = -1; |
d338d6fe |
1229 | eval ' |
1230 | for (;;) { |
1231 | ++$start; |
1232 | $start = 1 if ($start > $max); |
1233 | last if ($start == $end); |
1234 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { |
055fd3a9 |
1235 | if ($slave_editor) { |
d338d6fe |
1236 | print $OUT "\032\032$filename:$start:0\n"; |
1237 | } else { |
1238 | print $OUT "$start:\t", $dbline[$start], "\n"; |
1239 | } |
1240 | last; |
1241 | } |
1242 | } '; |
1243 | print $OUT "/$pat/: not found\n" if ($start == $end); |
1244 | next CMD; }; |
1245 | $cmd =~ /^\?(.*)$/ && do { |
1246 | $inpat = $1; |
1247 | $inpat =~ s:([^\\])\?$:$1:; |
1248 | if ($inpat ne "") { |
3dcd9d33 |
1249 | # squelch the sigmangler |
1250 | local $SIG{__DIE__}; |
1251 | local $SIG{__WARN__}; |
d338d6fe |
1252 | eval '$inpat =~ m'."\a$inpat\a"; |
1253 | if ($@ ne "") { |
3dcd9d33 |
1254 | print $OUT $@; |
d338d6fe |
1255 | next CMD; |
1256 | } |
1257 | $pat = $inpat; |
1258 | } |
1259 | $end = $start; |
1d06cb2d |
1260 | $incr = -1; |
d338d6fe |
1261 | eval ' |
1262 | for (;;) { |
1263 | --$start; |
1264 | $start = $max if ($start <= 0); |
1265 | last if ($start == $end); |
1266 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { |
055fd3a9 |
1267 | if ($slave_editor) { |
d338d6fe |
1268 | print $OUT "\032\032$filename:$start:0\n"; |
1269 | } else { |
1270 | print $OUT "$start:\t", $dbline[$start], "\n"; |
1271 | } |
1272 | last; |
1273 | } |
1274 | } '; |
1275 | print $OUT "?$pat?: not found\n" if ($start == $end); |
1276 | next CMD; }; |
1277 | $cmd =~ /^$rc+\s*(-)?(\d+)?$/ && do { |
1278 | pop(@hist) if length($cmd) > 1; |
3fbd6552 |
1279 | $i = $1 ? ($#hist-($2||1)) : ($2||$#hist); |
6921e3ed |
1280 | $cmd = $hist[$i]; |
615b993b |
1281 | print $OUT $cmd, "\n"; |
d338d6fe |
1282 | redo CMD; }; |
55497cff |
1283 | $cmd =~ /^$sh$sh\s*([\x00-\xff]*)/ && do { |
ee971a18 |
1284 | &system($1); |
d338d6fe |
1285 | next CMD; }; |
1286 | $cmd =~ /^$rc([^$rc].*)$/ && do { |
1287 | $pat = "^$1"; |
1288 | pop(@hist) if length($cmd) > 1; |
1289 | for ($i = $#hist; $i; --$i) { |
1290 | last if $hist[$i] =~ /$pat/; |
1291 | } |
1292 | if (!$i) { |
1293 | print $OUT "No such command!\n\n"; |
1294 | next CMD; |
1295 | } |
6921e3ed |
1296 | $cmd = $hist[$i]; |
615b993b |
1297 | print $OUT $cmd, "\n"; |
d338d6fe |
1298 | redo CMD; }; |
1299 | $cmd =~ /^$sh$/ && do { |
1300 | &system($ENV{SHELL}||"/bin/sh"); |
1301 | next CMD; }; |
ee971a18 |
1302 | $cmd =~ /^$sh\s*([\x00-\xff]*)/ && do { |
055fd3a9 |
1303 | # XXX: using csh or tcsh destroys sigint retvals! |
1304 | #&system($1); # use this instead |
ee971a18 |
1305 | &system($ENV{SHELL}||"/bin/sh","-c",$1); |
d338d6fe |
1306 | next CMD; }; |
1307 | $cmd =~ /^H\b\s*(-(\d+))?/ && do { |
055fd3a9 |
1308 | $end = $2 ? ($#hist-$2) : 0; |
d338d6fe |
1309 | $hist = 0 if $hist < 0; |
1310 | for ($i=$#hist; $i>$end; $i--) { |
1311 | print $OUT "$i: ",$hist[$i],"\n" |
1312 | unless $hist[$i] =~ /^.?$/; |
1313 | }; |
1314 | next CMD; }; |
055fd3a9 |
1315 | $cmd =~ /^(?:man|(?:perl)?doc)\b(?:\s+([^(]*))?$/ && do { |
1316 | runman($1); |
1317 | next CMD; }; |
b9b857e2 |
1318 | $cmd =~ s/^p$/print {\$DB::OUT} \$_/; |
1319 | $cmd =~ s/^p\b/print {\$DB::OUT} /; |
3dcd9d33 |
1320 | $cmd =~ s/^=\s*// && do { |
1321 | my @keys; |
1322 | if (length $cmd == 0) { |
1323 | @keys = sort keys %alias; |
1324 | } |
1325 | elsif (my($k,$v) = ($cmd =~ /^(\S+)\s+(\S.*)/)) { |
1326 | # can't use $_ or kill //g state |
1327 | for my $x ($k, $v) { $x =~ s/\a/\\a/g } |
1328 | $alias{$k} = "s\a$k\a$v\a"; |
1329 | # squelch the sigmangler |
1330 | local $SIG{__DIE__}; |
1331 | local $SIG{__WARN__}; |
1332 | unless (eval "sub { s\a$k\a$v\a }; 1") { |
1333 | print $OUT "Can't alias $k to $v: $@\n"; |
1334 | delete $alias{$k}; |
1335 | next CMD; |
1336 | } |
1337 | @keys = ($k); |
1338 | } |
1339 | else { |
1340 | @keys = ($cmd); |
1341 | } |
1342 | for my $k (@keys) { |
1343 | if ((my $v = $alias{$k}) =~ s\as\a$k\a(.*)\a$\a1\a) { |
1344 | print $OUT "$k\t= $1\n"; |
1345 | } |
1346 | elsif (defined $alias{$k}) { |
d338d6fe |
1347 | print $OUT "$k\t$alias{$k}\n"; |
3dcd9d33 |
1348 | } |
1349 | else { |
1350 | print "No alias for $k\n"; |
1351 | } |
1352 | } |
d338d6fe |
1353 | next CMD; }; |
1354 | $cmd =~ /^\|\|?\s*[^|]/ && do { |
1355 | if ($pager =~ /^\|/) { |
1356 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); |
1357 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); |
1358 | } else { |
1359 | open(SAVEOUT,">&OUT") || &warn("Can't save DB::OUT"); |
1360 | } |
055fd3a9 |
1361 | fix_less(); |
d338d6fe |
1362 | unless ($piped=open(OUT,$pager)) { |
1363 | &warn("Can't pipe output to `$pager'"); |
1364 | if ($pager =~ /^\|/) { |
055fd3a9 |
1365 | open(OUT,">&STDOUT") # XXX: lost message |
1366 | || &warn("Can't restore DB::OUT"); |
d338d6fe |
1367 | open(STDOUT,">&SAVEOUT") |
1368 | || &warn("Can't restore STDOUT"); |
1369 | close(SAVEOUT); |
1370 | } else { |
055fd3a9 |
1371 | open(OUT,">&STDOUT") # XXX: lost message |
1372 | || &warn("Can't restore DB::OUT"); |
d338d6fe |
1373 | } |
1374 | next CMD; |
1375 | } |
77fb7b16 |
1376 | $SIG{PIPE}= \&DB::catch if $pager =~ /^\|/ |
055fd3a9 |
1377 | && ("" eq $SIG{PIPE} || "DEFAULT" eq $SIG{PIPE}); |
d338d6fe |
1378 | $selected= select(OUT); |
1379 | $|= 1; |
1380 | select( $selected ), $selected= "" unless $cmd =~ /^\|\|/; |
1381 | $cmd =~ s/^\|+\s*//; |
055fd3a9 |
1382 | redo PIPE; |
1383 | }; |
d338d6fe |
1384 | # XXX Local variants do not work! |
6027b9a3 |
1385 | $cmd =~ s/^t\s/\$DB::trace |= 1;\n/; |
d338d6fe |
1386 | $cmd =~ s/^s\s/\$DB::single = 1;\n/ && do {$laststep = 's'}; |
1387 | $cmd =~ s/^n\s/\$DB::single = 2;\n/ && do {$laststep = 'n'}; |
1388 | } # PIPE: |
d338d6fe |
1389 | $evalarg = "\$^D = \$^D | \$DB::db_stop;\n$cmd"; &eval; |
1390 | if ($onetimeDump) { |
1391 | $onetimeDump = undef; |
f36776d9 |
1392 | } elsif ($term_pid == $$) { |
d338d6fe |
1393 | print $OUT "\n"; |
1394 | } |
1395 | } continue { # CMD: |
1396 | if ($piped) { |
1397 | if ($pager =~ /^\|/) { |
055fd3a9 |
1398 | $? = 0; |
1399 | # we cannot warn here: the handle is missing --tchrist |
1400 | close(OUT) || print SAVEOUT "\nCan't close DB::OUT\n"; |
1401 | |
1402 | # most of the $? crud was coping with broken cshisms |
1403 | if ($?) { |
1404 | print SAVEOUT "Pager `$pager' failed: "; |
1405 | if ($? == -1) { |
1406 | print SAVEOUT "shell returned -1\n"; |
1407 | } elsif ($? >> 8) { |
1408 | print SAVEOUT |
1409 | ( $? & 127 ) ? " (SIG#".($?&127).")" : "", |
1410 | ( $? & 128 ) ? " -- core dumped" : "", "\n"; |
1411 | } else { |
1412 | print SAVEOUT "status ", ($? >> 8), "\n"; |
1413 | } |
1414 | } |
1415 | |
d338d6fe |
1416 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); |
1417 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); |
055fd3a9 |
1418 | $SIG{PIPE} = "DEFAULT" if $SIG{PIPE} eq \&DB::catch; |
d338d6fe |
1419 | # Will stop ignoring SIGPIPE if done like nohup(1) |
1420 | # does SIGINT but Perl doesn't give us a choice. |
1421 | } else { |
1422 | open(OUT,">&SAVEOUT") || &warn("Can't restore DB::OUT"); |
1423 | } |
1424 | close(SAVEOUT); |
1425 | select($selected), $selected= "" unless $selected eq ""; |
1426 | $piped= ""; |
1427 | } |
1428 | } # CMD: |
04fb8f4b |
1429 | $exiting = 1 unless defined $cmd; |
e63173ce |
1430 | foreach $evalarg (@$post) { |
1431 | &eval; |
1432 | } |
d338d6fe |
1433 | } # if ($single || $signal) |
22fae026 |
1434 | ($@, $!, $^E, $,, $/, $\, $^W) = @saved; |
d338d6fe |
1435 | (); |
1436 | } |
1437 | |
1438 | # The following code may be executed now: |
1439 | # BEGIN {warn 4} |
1440 | |
1441 | sub sub { |
ee971a18 |
1442 | my ($al, $ret, @ret) = ""; |
7d4a81e5 |
1443 | if (length($sub) > 10 && substr($sub, -10, 10) eq '::AUTOLOAD') { |
1444 | $al = " for $$sub"; |
ee971a18 |
1445 | } |
f8b5b99c |
1446 | local $stack_depth = $stack_depth + 1; # Protect from non-local exits |
1447 | $#stack = $stack_depth; |
1448 | $stack[-1] = $single; |
d338d6fe |
1449 | $single &= 1; |
f8b5b99c |
1450 | $single |= 4 if $stack_depth == $deep; |
04fb8f4b |
1451 | ($frame & 4 |
f8b5b99c |
1452 | ? ( (print $LINEINFO ' ' x ($stack_depth - 1), "in "), |
04fb8f4b |
1453 | # Why -1? But it works! :-( |
1454 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f8b5b99c |
1455 | : print $LINEINFO ' ' x ($stack_depth - 1), "entering $sub$al\n") if $frame; |
d338d6fe |
1456 | if (wantarray) { |
1457 | @ret = &$sub; |
f8b5b99c |
1458 | $single |= $stack[$stack_depth--]; |
36477c24 |
1459 | ($frame & 4 |
f8b5b99c |
1460 | ? ( (print $LINEINFO ' ' x $stack_depth, "out "), |
36477c24 |
1461 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f8b5b99c |
1462 | : print $LINEINFO ' ' x $stack_depth, "exited $sub$al\n") if $frame & 2; |
1463 | if ($doret eq $stack_depth or $frame & 16) { |
1464 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); |
1465 | print $fh ' ' x $stack_depth if $frame & 16; |
7ea36084 |
1466 | print $fh "list context return from $sub:\n"; |
1467 | dumpit($fh, \@ret ); |
1468 | $doret = -2; |
1469 | } |
d338d6fe |
1470 | @ret; |
1471 | } else { |
fb73857a |
1472 | if (defined wantarray) { |
1473 | $ret = &$sub; |
1474 | } else { |
1475 | &$sub; undef $ret; |
1476 | }; |
f8b5b99c |
1477 | $single |= $stack[$stack_depth--]; |
36477c24 |
1478 | ($frame & 4 |
f8b5b99c |
1479 | ? ( (print $LINEINFO ' ' x $stack_depth, "out "), |
36477c24 |
1480 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f8b5b99c |
1481 | : print $LINEINFO ' ' x $stack_depth, "exited $sub$al\n") if $frame & 2; |
1482 | if ($doret eq $stack_depth or $frame & 16 and defined wantarray) { |
1483 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); |
1484 | print $fh (' ' x $stack_depth) if $frame & 16; |
7ea36084 |
1485 | print $fh (defined wantarray |
1486 | ? "scalar context return from $sub: " |
1487 | : "void context return from $sub\n"); |
1488 | dumpit( $fh, $ret ) if defined wantarray; |
1489 | $doret = -2; |
1490 | } |
d338d6fe |
1491 | $ret; |
1492 | } |
1493 | } |
1494 | |
1495 | sub save { |
22fae026 |
1496 | @saved = ($@, $!, $^E, $,, $/, $\, $^W); |
d338d6fe |
1497 | $, = ""; $/ = "\n"; $\ = ""; $^W = 0; |
1498 | } |
1499 | |
1500 | # The following takes its argument via $evalarg to preserve current @_ |
1501 | |
1502 | sub eval { |
055fd3a9 |
1503 | # 'my' would make it visible from user code |
1504 | # but so does local! --tchrist |
1505 | local @res; |
d338d6fe |
1506 | { |
23a291ec |
1507 | local $otrace = $trace; |
1508 | local $osingle = $single; |
1509 | local $od = $^D; |
d338d6fe |
1510 | @res = eval "$usercontext $evalarg;\n"; # '\n' for nice recursive debug |
1511 | $trace = $otrace; |
1512 | $single = $osingle; |
1513 | $^D = $od; |
1514 | } |
1515 | my $at = $@; |
36477c24 |
1516 | local $saved[0]; # Preserve the old value of $@ |
22fae026 |
1517 | eval { &DB::save }; |
d338d6fe |
1518 | if ($at) { |
1519 | print $OUT $at; |
1d06cb2d |
1520 | } elsif ($onetimeDump eq 'dump') { |
7ea36084 |
1521 | dumpit($OUT, \@res); |
1d06cb2d |
1522 | } elsif ($onetimeDump eq 'methods') { |
1523 | methods($res[0]); |
d338d6fe |
1524 | } |
6027b9a3 |
1525 | @res; |
d338d6fe |
1526 | } |
1527 | |
55497cff |
1528 | sub postponed_sub { |
1529 | my $subname = shift; |
1d06cb2d |
1530 | if ($postponed{$subname} =~ s/^break\s([+-]?\d+)\s+if\s//) { |
55497cff |
1531 | my $offset = $1 || 0; |
1532 | # Filename below can contain ':' |
1d06cb2d |
1533 | my ($file,$i) = (find_sub($subname) =~ /^(.*):(\d+)-.*$/); |
55497cff |
1534 | if ($i) { |
fb73857a |
1535 | $i += $offset; |
8ebc5c01 |
1536 | local *dbline = $main::{'_<' . $file}; |
55497cff |
1537 | local $^W = 0; # != 0 is magical below |
3fbd6552 |
1538 | $had_breakpoints{$file} |= 1; |
55497cff |
1539 | my $max = $#dbline; |
1540 | ++$i until $dbline[$i] != 0 or $i >= $max; |
1541 | $dbline{$i} = delete $postponed{$subname}; |
1542 | } else { |
1543 | print $OUT "Subroutine $subname not found.\n"; |
1544 | } |
1545 | return; |
1546 | } |
1d06cb2d |
1547 | elsif ($postponed{$subname} eq 'compile') { $signal = 1 } |
36477c24 |
1548 | #print $OUT "In postponed_sub for `$subname'.\n"; |
55497cff |
1549 | } |
1550 | |
1551 | sub postponed { |
3aefca04 |
1552 | if ($ImmediateStop) { |
1553 | $ImmediateStop = 0; |
1554 | $signal = 1; |
1555 | } |
55497cff |
1556 | return &postponed_sub |
1557 | unless ref \$_[0] eq 'GLOB'; # A subroutine is compiled. |
1558 | # Cannot be done before the file is compiled |
1559 | local *dbline = shift; |
1560 | my $filename = $dbline; |
1561 | $filename =~ s/^_<//; |
36477c24 |
1562 | $signal = 1, print $OUT "'$filename' loaded...\n" |
1563 | if $break_on_load{$filename}; |
f8b5b99c |
1564 | print $LINEINFO ' ' x $stack_depth, "Package $filename.\n" if $frame; |
0c395bd7 |
1565 | return unless $postponed_file{$filename}; |
3fbd6552 |
1566 | $had_breakpoints{$filename} |= 1; |
55497cff |
1567 | #%dbline = %{$postponed_file{$filename}}; # Cannot be done: unsufficient magic |
1568 | my $key; |
1569 | for $key (keys %{$postponed_file{$filename}}) { |
055fd3a9 |
1570 | $dbline{$key} = ${$postponed_file{$filename}}{$key}; |
54d04a52 |
1571 | } |
0c395bd7 |
1572 | delete $postponed_file{$filename}; |
54d04a52 |
1573 | } |
1574 | |
d338d6fe |
1575 | sub dumpit { |
7ea36084 |
1576 | local ($savout) = select(shift); |
ee971a18 |
1577 | my $osingle = $single; |
1578 | my $otrace = $trace; |
1579 | $single = $trace = 0; |
1580 | local $frame = 0; |
1581 | local $doret = -2; |
1582 | unless (defined &main::dumpValue) { |
1583 | do 'dumpvar.pl'; |
1584 | } |
d338d6fe |
1585 | if (defined &main::dumpValue) { |
1586 | &main::dumpValue(shift); |
1587 | } else { |
1588 | print $OUT "dumpvar.pl not available.\n"; |
1589 | } |
ee971a18 |
1590 | $single = $osingle; |
1591 | $trace = $otrace; |
d338d6fe |
1592 | select ($savout); |
1593 | } |
1594 | |
36477c24 |
1595 | # Tied method do not create a context, so may get wrong message: |
1596 | |
55497cff |
1597 | sub print_trace { |
1598 | my $fh = shift; |
36477c24 |
1599 | my @sub = dump_trace($_[0] + 1, $_[1]); |
1600 | my $short = $_[2]; # Print short report, next one for sub name |
1d06cb2d |
1601 | my $s; |
55497cff |
1602 | for ($i=0; $i <= $#sub; $i++) { |
1603 | last if $signal; |
1604 | local $" = ', '; |
1605 | my $args = defined $sub[$i]{args} |
1606 | ? "(@{ $sub[$i]{args} })" |
1607 | : '' ; |
1d06cb2d |
1608 | $args = (substr $args, 0, $maxtrace - 3) . '...' |
1609 | if length $args > $maxtrace; |
36477c24 |
1610 | my $file = $sub[$i]{file}; |
1611 | $file = $file eq '-e' ? $file : "file `$file'" unless $short; |
1d06cb2d |
1612 | $s = $sub[$i]{sub}; |
1613 | $s = (substr $s, 0, $maxtrace - 3) . '...' if length $s > $maxtrace; |
36477c24 |
1614 | if ($short) { |
1d06cb2d |
1615 | my $sub = @_ >= 4 ? $_[3] : $s; |
36477c24 |
1616 | print $fh "$sub[$i]{context}=$sub$args from $file:$sub[$i]{line}\n"; |
1617 | } else { |
1d06cb2d |
1618 | print $fh "$sub[$i]{context} = $s$args" . |
36477c24 |
1619 | " called from $file" . |
1620 | " line $sub[$i]{line}\n"; |
1621 | } |
55497cff |
1622 | } |
1623 | } |
1624 | |
1625 | sub dump_trace { |
1626 | my $skip = shift; |
36477c24 |
1627 | my $count = shift || 1e9; |
1628 | $skip++; |
1629 | $count += $skip; |
55497cff |
1630 | my ($p,$file,$line,$sub,$h,$args,$e,$r,@a,@sub,$context); |
04fb8f4b |
1631 | my $nothard = not $frame & 8; |
1632 | local $frame = 0; # Do not want to trace this. |
1633 | my $otrace = $trace; |
1634 | $trace = 0; |
55497cff |
1635 | for ($i = $skip; |
36477c24 |
1636 | $i < $count and ($p,$file,$line,$sub,$h,$context,$e,$r) = caller($i); |
55497cff |
1637 | $i++) { |
1638 | @a = (); |
1639 | for $arg (@args) { |
04fb8f4b |
1640 | my $type; |
1641 | if (not defined $arg) { |
1642 | push @a, "undef"; |
1643 | } elsif ($nothard and tied $arg) { |
1644 | push @a, "tied"; |
1645 | } elsif ($nothard and $type = ref $arg) { |
1646 | push @a, "ref($type)"; |
1647 | } else { |
1648 | local $_ = "$arg"; # Safe to stringify now - should not call f(). |
1649 | s/([\'\\])/\\$1/g; |
1650 | s/(.*)/'$1'/s |
1651 | unless /^(?: -?[\d.]+ | \*[\w:]* )$/x; |
1652 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; |
1653 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; |
1654 | push(@a, $_); |
1655 | } |
55497cff |
1656 | } |
7ea36084 |
1657 | $context = $context ? '@' : (defined $context ? "\$" : '.'); |
55497cff |
1658 | $args = $h ? [@a] : undef; |
1659 | $e =~ s/\n\s*\;\s*\Z// if $e; |
1d06cb2d |
1660 | $e =~ s/([\\\'])/\\$1/g if $e; |
55497cff |
1661 | if ($r) { |
1662 | $sub = "require '$e'"; |
1663 | } elsif (defined $r) { |
1664 | $sub = "eval '$e'"; |
1665 | } elsif ($sub eq '(eval)') { |
1666 | $sub = "eval {...}"; |
1667 | } |
1668 | push(@sub, {context => $context, sub => $sub, args => $args, |
1669 | file => $file, line => $line}); |
1670 | last if $signal; |
1671 | } |
04fb8f4b |
1672 | $trace = $otrace; |
55497cff |
1673 | @sub; |
1674 | } |
1675 | |
d338d6fe |
1676 | sub action { |
1677 | my $action = shift; |
1678 | while ($action =~ s/\\$//) { |
1679 | #print $OUT "+ "; |
1680 | #$action .= "\n"; |
1681 | $action .= &gets; |
1682 | } |
1683 | $action; |
1684 | } |
1685 | |
055fd3a9 |
1686 | sub unbalanced { |
1687 | # i hate using globals! |
1688 | $balanced_brace_re ||= qr{ |
1689 | ^ \{ |
1690 | (?: |
1691 | (?> [^{}] + ) # Non-parens without backtracking |
1692 | | |
1693 | (??{ $balanced_brace_re }) # Group with matching parens |
1694 | ) * |
1695 | \} $ |
1696 | }x; |
1697 | return $_[0] !~ m/$balanced_brace_re/; |
1698 | } |
1699 | |
d338d6fe |
1700 | sub gets { |
1701 | local($.); |
1702 | #<IN>; |
1703 | &readline("cont: "); |
1704 | } |
1705 | |
1706 | sub system { |
1707 | # We save, change, then restore STDIN and STDOUT to avoid fork() since |
055fd3a9 |
1708 | # some non-Unix systems can do system() but have problems with fork(). |
d338d6fe |
1709 | open(SAVEIN,"<&STDIN") || &warn("Can't save STDIN"); |
8ee058cb |
1710 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); |
d338d6fe |
1711 | open(STDIN,"<&IN") || &warn("Can't redirect STDIN"); |
1712 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); |
055fd3a9 |
1713 | |
1714 | # XXX: using csh or tcsh destroys sigint retvals! |
d338d6fe |
1715 | system(@_); |
1716 | open(STDIN,"<&SAVEIN") || &warn("Can't restore STDIN"); |
1717 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); |
055fd3a9 |
1718 | close(SAVEIN); |
1719 | close(SAVEOUT); |
1720 | |
1721 | |
1722 | # most of the $? crud was coping with broken cshisms |
1723 | if ($? >> 8) { |
1724 | &warn("(Command exited ", ($? >> 8), ")\n"); |
1725 | } elsif ($?) { |
1726 | &warn( "(Command died of SIG#", ($? & 127), |
1727 | (($? & 128) ? " -- core dumped" : "") , ")", "\n"); |
1728 | } |
1729 | |
1730 | return $?; |
1731 | |
d338d6fe |
1732 | } |
1733 | |
1734 | sub setterm { |
54d04a52 |
1735 | local $frame = 0; |
ee971a18 |
1736 | local $doret = -2; |
ee971a18 |
1737 | eval { require Term::ReadLine } or die $@; |
d338d6fe |
1738 | if ($notty) { |
1739 | if ($tty) { |
1740 | open(IN,"<$tty") or die "Cannot open TTY `$TTY' for read: $!"; |
1741 | open(OUT,">$tty") or die "Cannot open TTY `$TTY' for write: $!"; |
1742 | $IN = \*IN; |
1743 | $OUT = \*OUT; |
1744 | my $sel = select($OUT); |
1745 | $| = 1; |
1746 | select($sel); |
1747 | } else { |
3dcd9d33 |
1748 | eval "require Term::Rendezvous;" or die; |
d338d6fe |
1749 | my $rv = $ENV{PERLDB_NOTTY} || "/tmp/perldbtty$$"; |
1750 | my $term_rv = new Term::Rendezvous $rv; |
1751 | $IN = $term_rv->IN; |
1752 | $OUT = $term_rv->OUT; |
1753 | } |
1754 | } |
1755 | if (!$rl) { |
1756 | $term = new Term::ReadLine::Stub 'perldb', $IN, $OUT; |
1757 | } else { |
1758 | $term = new Term::ReadLine 'perldb', $IN, $OUT; |
1759 | |
a737e074 |
1760 | $rl_attribs = $term->Attribs; |
1761 | $rl_attribs->{basic_word_break_characters} .= '-:+/*,[])}' |
1762 | if defined $rl_attribs->{basic_word_break_characters} |
1763 | and index($rl_attribs->{basic_word_break_characters}, ":") == -1; |
1764 | $rl_attribs->{special_prefixes} = '$@&%'; |
1765 | $rl_attribs->{completer_word_break_characters} .= '$@&%'; |
1766 | $rl_attribs->{completion_function} = \&db_complete; |
d338d6fe |
1767 | } |
1768 | $LINEINFO = $OUT unless defined $LINEINFO; |
1769 | $lineinfo = $console unless defined $lineinfo; |
1770 | $term->MinLine(2); |
54d04a52 |
1771 | if ($term->Features->{setHistory} and "@hist" ne "?") { |
1772 | $term->SetHistory(@hist); |
1773 | } |
7a2e2cd6 |
1774 | ornaments($ornaments) if defined $ornaments; |
f36776d9 |
1775 | $term_pid = $$; |
1776 | } |
1777 | |
1778 | sub resetterm { # We forked, so we need a different TTY |
1779 | $term_pid = $$; |
1780 | if (defined &get_fork_TTY) { |
1781 | &get_fork_TTY; |
1782 | } elsif (not defined $fork_TTY |
1783 | and defined $ENV{TERM} and $ENV{TERM} eq 'xterm' |
1784 | and defined $ENV{WINDOWID} and defined $ENV{DISPLAY}) { |
1785 | # Possibly _inside_ XTERM |
1786 | open XT, q[3>&1 xterm -title 'Forked Perl debugger' -e sh -c 'tty 1>&3;\ |
1787 | sleep 10000000' |]; |
1788 | $fork_TTY = <XT>; |
1789 | chomp $fork_TTY; |
1790 | } |
1791 | if (defined $fork_TTY) { |
1792 | TTY($fork_TTY); |
1793 | undef $fork_TTY; |
1794 | } else { |
405ff068 |
1795 | print_help(<<EOP); |
1796 | I<#########> Forked, but do not know how to change a B<TTY>. I<#########> |
1797 | Define B<\$DB::fork_TTY> |
1798 | - or a function B<DB::get_fork_TTY()> which will set B<\$DB::fork_TTY>. |
1799 | The value of B<\$DB::fork_TTY> should be the name of I<TTY> to use. |
1800 | On I<UNIX>-like systems one can get the name of a I<TTY> for the given window |
1801 | by typing B<tty>, and disconnect the I<shell> from I<TTY> by B<sleep 1000000>. |
1802 | EOP |
f36776d9 |
1803 | } |
d338d6fe |
1804 | } |
1805 | |
1806 | sub readline { |
54d04a52 |
1807 | if (@typeahead) { |
1808 | my $left = @typeahead; |
1809 | my $got = shift @typeahead; |
1810 | print $OUT "auto(-$left)", shift, $got, "\n"; |
1811 | $term->AddHistory($got) |
1812 | if length($got) > 1 and defined $term->Features->{addHistory}; |
1813 | return $got; |
1814 | } |
d338d6fe |
1815 | local $frame = 0; |
ee971a18 |
1816 | local $doret = -2; |
363b4d59 |
1817 | if (ref $OUT and UNIVERSAL::isa($OUT, 'IO::Socket::INET')) { |
1818 | print $OUT @_; |
1819 | my $stuff; |
055fd3a9 |
1820 | $IN->recv( $stuff, 2048 ); # XXX: what's wrong with sysread? |
363b4d59 |
1821 | $stuff; |
1822 | } |
1823 | else { |
1824 | $term->readline(@_); |
1825 | } |
d338d6fe |
1826 | } |
1827 | |
1828 | sub dump_option { |
1829 | my ($opt, $val)= @_; |
55497cff |
1830 | $val = option_val($opt,'N/A'); |
1831 | $val =~ s/([\\\'])/\\$1/g; |
1832 | printf $OUT "%20s = '%s'\n", $opt, $val; |
1833 | } |
1834 | |
1835 | sub option_val { |
1836 | my ($opt, $default)= @_; |
1837 | my $val; |
d338d6fe |
1838 | if (defined $optionVars{$opt} |
055fd3a9 |
1839 | and defined ${$optionVars{$opt}}) { |
1840 | $val = ${$optionVars{$opt}}; |
d338d6fe |
1841 | } elsif (defined $optionAction{$opt} |
1842 | and defined &{$optionAction{$opt}}) { |
1843 | $val = &{$optionAction{$opt}}(); |
1844 | } elsif (defined $optionAction{$opt} |
1845 | and not defined $option{$opt} |
1846 | or defined $optionVars{$opt} |
055fd3a9 |
1847 | and not defined ${$optionVars{$opt}}) { |
55497cff |
1848 | $val = $default; |
d338d6fe |
1849 | } else { |
1850 | $val = $option{$opt}; |
1851 | } |
55497cff |
1852 | $val |
d338d6fe |
1853 | } |
1854 | |
1855 | sub parse_options { |
1856 | local($_)= @_; |
055fd3a9 |
1857 | # too dangerous to let intuitive usage overwrite important things |
1858 | # defaultion should never be the default |
1859 | my %opt_needs_val = map { ( $_ => 1 ) } qw{ |
24eeb834 |
1860 | arrayDepth hashDepth LineInfo maxTraceLen ornaments |
055fd3a9 |
1861 | pager quote ReadLine recallCommand RemotePort ShellBang TTY |
1862 | }; |
1863 | while (length) { |
1864 | my $val_defaulted; |
1865 | s/^\s+// && next; |
1866 | s/^(\w+)(\W?)// or print($OUT "Invalid option `$_'\n"), last; |
d338d6fe |
1867 | my ($opt,$sep) = ($1,$2); |
1868 | my $val; |
1869 | if ("?" eq $sep) { |
1870 | print($OUT "Option query `$opt?' followed by non-space `$_'\n"), last |
1871 | if /^\S/; |
1872 | #&dump_option($opt); |
1873 | } elsif ($sep !~ /\S/) { |
055fd3a9 |
1874 | $val_defaulted = 1; |
1875 | $val = "1"; # this is an evil default; make 'em set it! |
d338d6fe |
1876 | } elsif ($sep eq "=") { |
055fd3a9 |
1877 | |
1878 | if (s/ (["']) ( (?: \\. | (?! \1 ) [^\\] )* ) \1 //x) { |
1879 | my $quote = $1; |
1880 | ($val = $2) =~ s/\\([$quote\\])/$1/g; |
1881 | } else { |
1882 | s/^(\S*)//; |
d338d6fe |
1883 | $val = $1; |
055fd3a9 |
1884 | print OUT qq(Option better cleared using $opt=""\n) |
1885 | unless length $val; |
1886 | } |
1887 | |
d338d6fe |
1888 | } else { #{ to "let some poor schmuck bounce on the % key in B<vi>." |
1889 | my ($end) = "\\" . substr( ")]>}$sep", index("([<{",$sep), 1 ); #} |
1890 | s/^(([^\\$end]|\\[\\$end])*)$end($|\s+)// or |
1891 | print($OUT "Unclosed option value `$opt$sep$_'\n"), last; |
055fd3a9 |
1892 | ($val = $1) =~ s/\\([\\$end])/$1/g; |
d338d6fe |
1893 | } |
055fd3a9 |
1894 | |
1895 | my $option; |
1896 | my $matches = grep( /^\Q$opt/ && ($option = $_), @options ) |
1897 | || grep( /^\Q$opt/i && ($option = $_), @options ); |
1898 | |
1899 | print($OUT "Unknown option `$opt'\n"), next unless $matches; |
1900 | print($OUT "Ambiguous option `$opt'\n"), next if $matches > 1; |
1901 | |
1902 | if ($opt_needs_val{$option} && $val_defaulted) { |
1903 | print $OUT "Option `$opt' is non-boolean. Use `O $option=VAL' to set, `O $option?' to query\n"; |
1904 | next; |
1905 | } |
1906 | |
1907 | $option{$option} = $val if defined $val; |
1908 | |
1909 | eval qq{ |
1910 | local \$frame = 0; |
1911 | local \$doret = -2; |
1912 | require '$optionRequire{$option}'; |
1913 | 1; |
1914 | } || die # XXX: shouldn't happen |
1915 | if defined $optionRequire{$option} && |
1916 | defined $val; |
1917 | |
1918 | ${$optionVars{$option}} = $val |
1919 | if defined $optionVars{$option} && |
1920 | defined $val; |
1921 | |
1922 | &{$optionAction{$option}} ($val) |
1923 | if defined $optionAction{$option} && |
1924 | defined &{$optionAction{$option}} && |
1925 | defined $val; |
1926 | |
1927 | # Not $rcfile |
1928 | dump_option($option) unless $OUT eq \*STDERR; |
d338d6fe |
1929 | } |
1930 | } |
1931 | |
54d04a52 |
1932 | sub set_list { |
1933 | my ($stem,@list) = @_; |
1934 | my $val; |
055fd3a9 |
1935 | $ENV{"${stem}_n"} = @list; |
54d04a52 |
1936 | for $i (0 .. $#list) { |
1937 | $val = $list[$i]; |
1938 | $val =~ s/\\/\\\\/g; |
ee971a18 |
1939 | $val =~ s/([\0-\37\177\200-\377])/"\\0x" . unpack('H2',$1)/eg; |
055fd3a9 |
1940 | $ENV{"${stem}_$i"} = $val; |
54d04a52 |
1941 | } |
1942 | } |
1943 | |
1944 | sub get_list { |
1945 | my $stem = shift; |
1946 | my @list; |
055fd3a9 |
1947 | my $n = delete $ENV{"${stem}_n"}; |
54d04a52 |
1948 | my $val; |
1949 | for $i (0 .. $n - 1) { |
055fd3a9 |
1950 | $val = delete $ENV{"${stem}_$i"}; |
54d04a52 |
1951 | $val =~ s/\\((\\)|0x(..))/ $2 ? $2 : pack('H2', $3) /ge; |
1952 | push @list, $val; |
1953 | } |
1954 | @list; |
1955 | } |
1956 | |
d338d6fe |
1957 | sub catch { |
1958 | $signal = 1; |
4639966b |
1959 | return; # Put nothing on the stack - malloc/free land! |
d338d6fe |
1960 | } |
1961 | |
1962 | sub warn { |
1963 | my($msg)= join("",@_); |
1964 | $msg .= ": $!\n" unless $msg =~ /\n$/; |
1965 | print $OUT $msg; |
1966 | } |
1967 | |
1968 | sub TTY { |
f36776d9 |
1969 | if (@_ and $term and $term->Features->{newTTY}) { |
1970 | my ($in, $out) = shift; |
1971 | if ($in =~ /,/) { |
1972 | ($in, $out) = split /,/, $in, 2; |
1973 | } else { |
1974 | $out = $in; |
1975 | } |
1976 | open IN, $in or die "cannot open `$in' for read: $!"; |
1977 | open OUT, ">$out" or die "cannot open `$out' for write: $!"; |
1978 | $term->newTTY(\*IN, \*OUT); |
1979 | $IN = \*IN; |
1980 | $OUT = \*OUT; |
1981 | return $tty = $in; |
1982 | } elsif ($term and @_) { |
1983 | &warn("Too late to set TTY, enabled on next `R'!\n"); |
43aed9ee |
1984 | } |
1985 | $tty = shift if @_; |
d338d6fe |
1986 | $tty or $console; |
1987 | } |
1988 | |
1989 | sub noTTY { |
1990 | if ($term) { |
43aed9ee |
1991 | &warn("Too late to set noTTY, enabled on next `R'!\n") if @_; |
d338d6fe |
1992 | } |
43aed9ee |
1993 | $notty = shift if @_; |
d338d6fe |
1994 | $notty; |
1995 | } |
1996 | |
1997 | sub ReadLine { |
1998 | if ($term) { |
43aed9ee |
1999 | &warn("Too late to set ReadLine, enabled on next `R'!\n") if @_; |
d338d6fe |
2000 | } |
43aed9ee |
2001 | $rl = shift if @_; |
d338d6fe |
2002 | $rl; |
2003 | } |
2004 | |
363b4d59 |
2005 | sub RemotePort { |
2006 | if ($term) { |
2007 | &warn("Too late to set RemotePort, enabled on next 'R'!\n") if @_; |
2008 | } |
2009 | $remoteport = shift if @_; |
2010 | $remoteport; |
2011 | } |
2012 | |
a737e074 |
2013 | sub tkRunning { |
055fd3a9 |
2014 | if (${$term->Features}{tkRunning}) { |
a737e074 |
2015 | return $term->tkRunning(@_); |
2016 | } else { |
2017 | print $OUT "tkRunning not supported by current ReadLine package.\n"; |
2018 | 0; |
2019 | } |
2020 | } |
2021 | |
d338d6fe |
2022 | sub NonStop { |
2023 | if ($term) { |
43aed9ee |
2024 | &warn("Too late to set up NonStop mode, enabled on next `R'!\n") if @_; |
d338d6fe |
2025 | } |
43aed9ee |
2026 | $runnonstop = shift if @_; |
d338d6fe |
2027 | $runnonstop; |
2028 | } |
2029 | |
2030 | sub pager { |
2031 | if (@_) { |
2032 | $pager = shift; |
2033 | $pager="|".$pager unless $pager =~ /^(\+?\>|\|)/; |
2034 | } |
2035 | $pager; |
2036 | } |
2037 | |
2038 | sub shellBang { |
2039 | if (@_) { |
2040 | $sh = quotemeta shift; |
2041 | $sh .= "\\b" if $sh =~ /\w$/; |
2042 | } |
2043 | $psh = $sh; |
2044 | $psh =~ s/\\b$//; |
2045 | $psh =~ s/\\(.)/$1/g; |
2046 | &sethelp; |
2047 | $psh; |
2048 | } |
2049 | |
7a2e2cd6 |
2050 | sub ornaments { |
2051 | if (defined $term) { |
2052 | local ($warnLevel,$dieLevel) = (0, 1); |
2053 | return '' unless $term->Features->{ornaments}; |
2054 | eval { $term->ornaments(@_) } || ''; |
2055 | } else { |
2056 | $ornaments = shift; |
2057 | } |
2058 | } |
2059 | |
d338d6fe |
2060 | sub recallCommand { |
2061 | if (@_) { |
2062 | $rc = quotemeta shift; |
2063 | $rc .= "\\b" if $rc =~ /\w$/; |
2064 | } |
2065 | $prc = $rc; |
2066 | $prc =~ s/\\b$//; |
2067 | $prc =~ s/\\(.)/$1/g; |
2068 | &sethelp; |
2069 | $prc; |
2070 | } |
2071 | |
2072 | sub LineInfo { |
2073 | return $lineinfo unless @_; |
2074 | $lineinfo = shift; |
2075 | my $stream = ($lineinfo =~ /^(\+?\>|\|)/) ? $lineinfo : ">$lineinfo"; |
055fd3a9 |
2076 | $slave_editor = ($stream =~ /^\|/); |
d338d6fe |
2077 | open(LINEINFO, "$stream") || &warn("Cannot open `$stream' for write"); |
2078 | $LINEINFO = \*LINEINFO; |
2079 | my $save = select($LINEINFO); |
2080 | $| = 1; |
2081 | select($save); |
2082 | $lineinfo; |
2083 | } |
2084 | |
ee971a18 |
2085 | sub list_versions { |
2086 | my %version; |
2087 | my $file; |
2088 | for (keys %INC) { |
2089 | $file = $_; |
2090 | s,\.p[lm]$,,i ; |
2091 | s,/,::,g ; |
2092 | s/^perl5db$/DB/; |
55497cff |
2093 | s/^Term::ReadLine::readline$/readline/; |
055fd3a9 |
2094 | if (defined ${ $_ . '::VERSION' }) { |
2095 | $version{$file} = "${ $_ . '::VERSION' } from "; |
ee971a18 |
2096 | } |
2097 | $version{$file} .= $INC{$file}; |
2098 | } |
2c53b6d0 |
2099 | dumpit($OUT,\%version); |
ee971a18 |
2100 | } |
2101 | |
d338d6fe |
2102 | sub sethelp { |
055fd3a9 |
2103 | # XXX: make sure these are tabs between the command and explantion, |
2104 | # or print_help will screw up your formatting if you have |
2105 | # eeevil ornaments enabled. This is an insane mess. |
2106 | |
d338d6fe |
2107 | $help = " |
6027b9a3 |
2108 | B<T> Stack trace. |
2109 | B<s> [I<expr>] Single step [in I<expr>]. |
2110 | B<n> [I<expr>] Next, steps over subroutine calls [in I<expr>]. |
2111 | <B<CR>> Repeat last B<n> or B<s> command. |
2112 | B<r> Return from current subroutine. |
2113 | B<c> [I<line>|I<sub>] Continue; optionally inserts a one-time-only breakpoint |
55497cff |
2114 | at the specified position. |
6027b9a3 |
2115 | B<l> I<min>B<+>I<incr> List I<incr>+1 lines starting at I<min>. |
2116 | B<l> I<min>B<->I<max> List lines I<min> through I<max>. |
2117 | B<l> I<line> List single I<line>. |
2118 | B<l> I<subname> List first window of lines from subroutine. |
3fbd6552 |
2119 | B<l> I<\$var> List first window of lines from subroutine referenced by I<\$var>. |
6027b9a3 |
2120 | B<l> List next window of lines. |
2121 | B<-> List previous window of lines. |
2122 | B<w> [I<line>] List window around I<line>. |
2123 | B<.> Return to the executed line. |
bee32ff8 |
2124 | B<f> I<filename> Switch to viewing I<filename>. File must be already loaded. |
2125 | I<filename> may be either the full name of the file, or a regular |
2126 | expression matching the full file name: |
2127 | B<f> I</home/me/foo.pl> and B<f> I<oo\\.> may access the same file. |
2128 | Evals (with saved bodies) are considered to be filenames: |
2129 | B<f> I<(eval 7)> and B<f> I<eval 7\\b> access the body of the 7th eval |
2130 | (in the order of execution). |
6027b9a3 |
2131 | B</>I<pattern>B</> Search forwards for I<pattern>; final B</> is optional. |
2132 | B<?>I<pattern>B<?> Search backwards for I<pattern>; final B<?> is optional. |
2133 | B<L> List all breakpoints and actions. |
2134 | B<S> [[B<!>]I<pattern>] List subroutine names [not] matching I<pattern>. |
2135 | B<t> Toggle trace mode. |
2136 | B<t> I<expr> Trace through execution of I<expr>. |
2137 | B<b> [I<line>] [I<condition>] |
2138 | Set breakpoint; I<line> defaults to the current execution line; |
2139 | I<condition> breaks if it evaluates to true, defaults to '1'. |
2140 | B<b> I<subname> [I<condition>] |
d338d6fe |
2141 | Set breakpoint at first line of subroutine. |
3fbd6552 |
2142 | B<b> I<\$var> Set breakpoint at first line of subroutine referenced by I<\$var>. |
6027b9a3 |
2143 | B<b> B<load> I<filename> Set breakpoint on `require'ing the given file. |
2144 | B<b> B<postpone> I<subname> [I<condition>] |
55497cff |
2145 | Set breakpoint at first line of subroutine after |
2146 | it is compiled. |
6027b9a3 |
2147 | B<b> B<compile> I<subname> |
1d06cb2d |
2148 | Stop after the subroutine is compiled. |
6027b9a3 |
2149 | B<d> [I<line>] Delete the breakpoint for I<line>. |
2150 | B<D> Delete all breakpoints. |
2151 | B<a> [I<line>] I<command> |
3fbd6552 |
2152 | Set an action to be done before the I<line> is executed; |
2153 | I<line> defaults to the current execution line. |
6027b9a3 |
2154 | Sequence is: check for breakpoint/watchpoint, print line |
2155 | if necessary, do action, prompt user if necessary, |
3fbd6552 |
2156 | execute line. |
2157 | B<a> [I<line>] Delete the action for I<line>. |
6027b9a3 |
2158 | B<A> Delete all actions. |
2159 | B<W> I<expr> Add a global watch-expression. |
2160 | B<W> Delete all watch-expressions. |
2161 | B<V> [I<pkg> [I<vars>]] List some (default all) variables in package (default current). |
2162 | Use B<~>I<pattern> and B<!>I<pattern> for positive and negative regexps. |
2163 | B<X> [I<vars>] Same as \"B<V> I<currentpackage> [I<vars>]\". |
2164 | B<x> I<expr> Evals expression in array context, dumps the result. |
2165 | B<m> I<expr> Evals expression in array context, prints methods callable |
1d06cb2d |
2166 | on the first element of the result. |
6027b9a3 |
2167 | B<m> I<class> Prints methods callable via the given class. |
055fd3a9 |
2168 | |
2169 | B<<> ? List Perl commands to run before each prompt. |
6027b9a3 |
2170 | B<<> I<expr> Define Perl command to run before each prompt. |
2171 | B<<<> I<expr> Add to the list of Perl commands to run before each prompt. |
055fd3a9 |
2172 | B<>> ? List Perl commands to run after each prompt. |
6027b9a3 |
2173 | B<>> I<expr> Define Perl command to run after each prompt. |
3fbd6552 |
2174 | B<>>B<>> I<expr> Add to the list of Perl commands to run after each prompt. |
6027b9a3 |
2175 | B<{> I<db_command> Define debugger command to run before each prompt. |
055fd3a9 |
2176 | B<{> ? List debugger commands to run before each prompt. |
2177 | B<<> I<expr> Define Perl command to run before each prompt. |
6027b9a3 |
2178 | B<{{> I<db_command> Add to the list of debugger commands to run before each prompt. |
2179 | B<$prc> I<number> Redo a previous command (default previous command). |
2180 | B<$prc> I<-number> Redo number'th-to-last command. |
2181 | B<$prc> I<pattern> Redo last command that started with I<pattern>. |
2182 | See 'B<O> I<recallCommand>' too. |
2183 | B<$psh$psh> I<cmd> Run cmd in a subprocess (reads from DB::IN, writes to DB::OUT)" |
d338d6fe |
2184 | . ( $rc eq $sh ? "" : " |
6027b9a3 |
2185 | B<$psh> [I<cmd>] Run I<cmd> in subshell (forces \"\$SHELL -c 'cmd'\")." ) . " |
2186 | See 'B<O> I<shellBang>' too. |
2187 | B<H> I<-number> Display last number commands (default all). |
2188 | B<p> I<expr> Same as \"I<print {DB::OUT} expr>\" in current package. |
2189 | B<|>I<dbcmd> Run debugger command, piping DB::OUT to current pager. |
2190 | B<||>I<dbcmd> Same as B<|>I<dbcmd> but DB::OUT is temporarilly select()ed as well. |
2191 | B<\=> [I<alias> I<value>] Define a command alias, or list current aliases. |
2192 | I<command> Execute as a perl statement in current package. |
2193 | B<v> Show versions of loaded modules. |
2194 | B<R> Pure-man-restart of debugger, some of debugger state |
55497cff |
2195 | and command-line options may be lost. |
36477c24 |
2196 | Currently the following setting are preserved: |
6027b9a3 |
2197 | history, breakpoints and actions, debugger B<O>ptions |
2198 | and the following command-line options: I<-w>, I<-I>, I<-e>. |
055fd3a9 |
2199 | |
2200 | B<O> [I<opt>] ... Set boolean option to true |
2201 | B<O> [I<opt>B<?>] Query options |
2202 | B<O> [I<opt>B<=>I<val>] [I<opt>=B<\">I<val>B<\">] ... |
2203 | Set options. Use quotes in spaces in value. |
2204 | I<recallCommand>, I<ShellBang> chars used to recall command or spawn shell; |
2205 | I<pager> program for output of \"|cmd\"; |
2206 | I<tkRunning> run Tk while prompting (with ReadLine); |
2207 | I<signalLevel> I<warnLevel> I<dieLevel> level of verbosity; |
2208 | I<inhibit_exit> Allows stepping off the end of the script. |
2209 | I<ImmediateStop> Debugger should stop as early as possible. |
2210 | I<RemotePort> Remote hostname:port for remote debugging |
2211 | The following options affect what happens with B<V>, B<X>, and B<x> commands: |
2212 | I<arrayDepth>, I<hashDepth> print only first N elements ('' for all); |
2213 | I<compactDump>, I<veryCompact> change style of array and hash dump; |
2214 | I<globPrint> whether to print contents of globs; |
2215 | I<DumpDBFiles> dump arrays holding debugged files; |
2216 | I<DumpPackages> dump symbol tables of packages; |
2217 | I<DumpReused> dump contents of \"reused\" addresses; |
2218 | I<quote>, I<HighBit>, I<undefPrint> change style of string dump; |
2219 | I<bareStringify> Do not print the overload-stringified value; |
2220 | Other options include: |
2221 | I<PrintRet> affects printing of return value after B<r> command, |
2222 | I<frame> affects printing messages on entry and exit from subroutines. |
2223 | I<AutoTrace> affects printing messages on every possible breaking point. |
2224 | I<maxTraceLen> gives maximal length of evals/args listed in stack trace. |
2225 | I<ornaments> affects screen appearance of the command line. |
2226 | During startup options are initialized from \$ENV{PERLDB_OPTS}. |
2227 | You can put additional initialization options I<TTY>, I<noTTY>, |
2228 | I<ReadLine>, I<NonStop>, and I<RemotePort> there (or use |
2229 | `B<R>' after you set them). |
2230 | |
2231 | B<q> or B<^D> Quit. Set B<\$DB::finished = 0> to debug global destruction. |
6027b9a3 |
2232 | B<h> [I<db_command>] Get help [on a specific debugger command], enter B<|h> to page. |
2233 | B<h h> Summary of debugger commands. |
055fd3a9 |
2234 | B<$doccmd> I<manpage> Runs the external doc viewer B<$doccmd> command on the |
2235 | named Perl I<manpage>, or on B<$doccmd> itself if omitted. |
2236 | Set B<\$DB::doccmd> to change viewer. |
2237 | |
2238 | Type `|h' for a paged display if this was too hard to read. |
2239 | |
2240 | "; # Fix balance of vi % matching: } }} |
d338d6fe |
2241 | |
d338d6fe |
2242 | $summary = <<"END_SUM"; |
6027b9a3 |
2243 | I<List/search source lines:> I<Control script execution:> |
2244 | B<l> [I<ln>|I<sub>] List source code B<T> Stack trace |
2245 | B<-> or B<.> List previous/current line B<s> [I<expr>] Single step [in expr] |
2246 | B<w> [I<line>] List around line B<n> [I<expr>] Next, steps over subs |
d9f67849 |
2247 | B<f> I<filename> View source in file <B<CR>/B<Enter>> Repeat last B<n> or B<s> |
6027b9a3 |
2248 | B</>I<pattern>B</> B<?>I<patt>B<?> Search forw/backw B<r> Return from subroutine |
2249 | B<v> Show versions of modules B<c> [I<ln>|I<sub>] Continue until position |
2250 | I<Debugger controls:> B<L> List break/watch/actions |
2251 | B<O> [...] Set debugger options B<t> [I<expr>] Toggle trace [trace expr] |
d9f67849 |
2252 | B<<>[B<<>]|B<{>[B<{>]|B<>>[B<>>] [I<cmd>] Do pre/post-prompt B<b> [I<ln>|I<event>|I<sub>] [I<cnd>] Set breakpoint |
6027b9a3 |
2253 | B<$prc> [I<N>|I<pat>] Redo a previous command B<d> [I<ln>] or B<D> Delete a/all breakpoints |
2254 | B<H> [I<-num>] Display last num commands B<a> [I<ln>] I<cmd> Do cmd before line |
2255 | B<=> [I<a> I<val>] Define/list an alias B<W> I<expr> Add a watch expression |
2256 | B<h> [I<db_cmd>] Get help on command B<A> or B<W> Delete all actions/watch |
d9f67849 |
2257 | B<|>[B<|>]I<db_cmd> Send output to pager B<$psh>\[B<$psh>\] I<syscmd> Run cmd in a subprocess |
6027b9a3 |
2258 | B<q> or B<^D> Quit B<R> Attempt a restart |
2259 | I<Data Examination:> B<expr> Execute perl code, also see: B<s>,B<n>,B<t> I<expr> |
2260 | B<x>|B<m> I<expr> Evals expr in array context, dumps the result or lists methods. |
2261 | B<p> I<expr> Print expression (uses script's current package). |
2262 | B<S> [[B<!>]I<pat>] List subroutine names [not] matching pattern |
2263 | B<V> [I<Pk> [I<Vars>]] List Variables in Package. Vars can be ~pattern or !pattern. |
2264 | B<X> [I<Vars>] Same as \"B<V> I<current_package> [I<Vars>]\". |
055fd3a9 |
2265 | For more help, type B<h> I<cmd_letter>, or run B<$doccmd perldebug> for all docs. |
d338d6fe |
2266 | END_SUM |
055fd3a9 |
2267 | # ')}}; # Fix balance of vi % matching |
d338d6fe |
2268 | } |
2269 | |
6027b9a3 |
2270 | sub print_help { |
055fd3a9 |
2271 | local $_ = shift; |
2272 | |
2273 | # Restore proper alignment destroyed by eeevil I<> and B<> |
2274 | # ornaments: A pox on both their houses! |
2275 | # |
2276 | # A help command will have everything up to and including |
2277 | # the first tab sequence paddeed into a field 16 (or if indented 20) |
2278 | # wide. If it's wide than that, an extra space will be added. |
2279 | s{ |
2280 | ^ # only matters at start of line |
2281 | ( \040{4} | \t )* # some subcommands are indented |
2282 | ( < ? # so <CR> works |
2283 | [BI] < [^\t\n] + ) # find an eeevil ornament |
2284 | ( \t+ ) # original separation, discarded |
2285 | ( .* ) # this will now start (no earlier) than |
2286 | # column 16 |
2287 | } { |
2288 | my($leadwhite, $command, $midwhite, $text) = ($1, $2, $3, $4); |
2289 | my $clean = $command; |
2290 | $clean =~ s/[BI]<([^>]*)>/$1/g; |
2291 | # replace with this whole string: |
2292 | (length($leadwhite) ? " " x 4 : "") |
2293 | . $command |
2294 | . ((" " x (16 + (length($leadwhite) ? 4 : 0) - length($clean))) || " ") |
2295 | . $text; |
2296 | |
2297 | }mgex; |
2298 | |
2299 | s{ # handle bold ornaments |
2300 | B < ( [^>] + | > ) > |
2301 | } { |
2302 | $Term::ReadLine::TermCap::rl_term_set[2] |
2303 | . $1 |
2304 | . $Term::ReadLine::TermCap::rl_term_set[3] |
2305 | }gex; |
2306 | |
2307 | s{ # handle italic ornaments |
2308 | I < ( [^>] + | > ) > |
2309 | } { |
2310 | $Term::ReadLine::TermCap::rl_term_set[0] |
2311 | . $1 |
2312 | . $Term::ReadLine::TermCap::rl_term_set[1] |
2313 | }gex; |
2314 | |
2315 | print $OUT $_; |
2316 | } |
2317 | |
2318 | sub fix_less { |
2319 | return if defined $ENV{LESS} && $ENV{LESS} =~ /r/; |
2320 | my $is_less = $pager =~ /\bless\b/; |
2321 | if ($pager =~ /\bmore\b/) { |
2322 | my @st_more = stat('/usr/bin/more'); |
2323 | my @st_less = stat('/usr/bin/less'); |
2324 | $is_less = @st_more && @st_less |
2325 | && $st_more[0] == $st_less[0] |
2326 | && $st_more[1] == $st_less[1]; |
2327 | } |
2328 | # changes environment! |
2329 | $ENV{LESS} .= 'r' if $is_less; |
6027b9a3 |
2330 | } |
2331 | |
d338d6fe |
2332 | sub diesignal { |
54d04a52 |
2333 | local $frame = 0; |
ee971a18 |
2334 | local $doret = -2; |
77fb7b16 |
2335 | $SIG{'ABRT'} = 'DEFAULT'; |
d338d6fe |
2336 | kill 'ABRT', $$ if $panic++; |
ee85b803 |
2337 | if (defined &Carp::longmess) { |
2338 | local $SIG{__WARN__} = ''; |
2339 | local $Carp::CarpLevel = 2; # mydie + confess |
2340 | &warn(Carp::longmess("Signal @_")); |
2341 | } |
2342 | else { |
2343 | print $DB::OUT "Got signal @_\n"; |
2344 | } |
d338d6fe |
2345 | kill 'ABRT', $$; |
2346 | } |
2347 | |
2348 | sub dbwarn { |
54d04a52 |
2349 | local $frame = 0; |
ee971a18 |
2350 | local $doret = -2; |
d338d6fe |
2351 | local $SIG{__WARN__} = ''; |
77fb7b16 |
2352 | local $SIG{__DIE__} = ''; |
fb73857a |
2353 | eval { require Carp } if defined $^S; # If error/warning during compilation, |
2354 | # require may be broken. |
2355 | warn(@_, "\nCannot print stack trace, load with -MCarp option to see stack"), |
2356 | return unless defined &Carp::longmess; |
d338d6fe |
2357 | my ($mysingle,$mytrace) = ($single,$trace); |
2358 | $single = 0; $trace = 0; |
2359 | my $mess = Carp::longmess(@_); |
2360 | ($single,$trace) = ($mysingle,$mytrace); |
d338d6fe |
2361 | &warn($mess); |
d338d6fe |
2362 | } |
2363 | |
2364 | sub dbdie { |
54d04a52 |
2365 | local $frame = 0; |
ee971a18 |
2366 | local $doret = -2; |
d338d6fe |
2367 | local $SIG{__DIE__} = ''; |
2368 | local $SIG{__WARN__} = ''; |
2369 | my $i = 0; my $ineval = 0; my $sub; |
fb73857a |
2370 | if ($dieLevel > 2) { |
d338d6fe |
2371 | local $SIG{__WARN__} = \&dbwarn; |
fb73857a |
2372 | &warn(@_); # Yell no matter what |
2373 | return; |
2374 | } |
2375 | if ($dieLevel < 2) { |
2376 | die @_ if $^S; # in eval propagate |
d338d6fe |
2377 | } |
fb73857a |
2378 | eval { require Carp } if defined $^S; # If error/warning during compilation, |
2379 | # require may be broken. |
055fd3a9 |
2380 | |
fb73857a |
2381 | die(@_, "\nCannot print stack trace, load with -MCarp option to see stack") |
2382 | unless defined &Carp::longmess; |
055fd3a9 |
2383 | |
d338d6fe |
2384 | # We do not want to debug this chunk (automatic disabling works |
2385 | # inside DB::DB, but not in Carp). |
2386 | my ($mysingle,$mytrace) = ($single,$trace); |
2387 | $single = 0; $trace = 0; |
2388 | my $mess = Carp::longmess(@_); |
2389 | ($single,$trace) = ($mysingle,$mytrace); |
d338d6fe |
2390 | die $mess; |
2391 | } |
2392 | |
d338d6fe |
2393 | sub warnLevel { |
2394 | if (@_) { |
2395 | $prevwarn = $SIG{__WARN__} unless $warnLevel; |
2396 | $warnLevel = shift; |
2397 | if ($warnLevel) { |
0b7ed949 |
2398 | $SIG{__WARN__} = \&DB::dbwarn; |
d338d6fe |
2399 | } else { |
2400 | $SIG{__WARN__} = $prevwarn; |
2401 | } |
2402 | } |
2403 | $warnLevel; |
2404 | } |
2405 | |
2406 | sub dieLevel { |
2407 | if (@_) { |
2408 | $prevdie = $SIG{__DIE__} unless $dieLevel; |
2409 | $dieLevel = shift; |
2410 | if ($dieLevel) { |
0b7ed949 |
2411 | $SIG{__DIE__} = \&DB::dbdie; # if $dieLevel < 2; |
2412 | #$SIG{__DIE__} = \&DB::diehard if $dieLevel >= 2; |
d338d6fe |
2413 | print $OUT "Stack dump during die enabled", |
43aed9ee |
2414 | ( $dieLevel == 1 ? " outside of evals" : ""), ".\n" |
2415 | if $I_m_init; |
d338d6fe |
2416 | print $OUT "Dump printed too.\n" if $dieLevel > 2; |
2417 | } else { |
2418 | $SIG{__DIE__} = $prevdie; |
2419 | print $OUT "Default die handler restored.\n"; |
2420 | } |
2421 | } |
2422 | $dieLevel; |
2423 | } |
2424 | |
2425 | sub signalLevel { |
2426 | if (@_) { |
2427 | $prevsegv = $SIG{SEGV} unless $signalLevel; |
2428 | $prevbus = $SIG{BUS} unless $signalLevel; |
2429 | $signalLevel = shift; |
2430 | if ($signalLevel) { |
77fb7b16 |
2431 | $SIG{SEGV} = \&DB::diesignal; |
2432 | $SIG{BUS} = \&DB::diesignal; |
d338d6fe |
2433 | } else { |
2434 | $SIG{SEGV} = $prevsegv; |
2435 | $SIG{BUS} = $prevbus; |
2436 | } |
2437 | } |
2438 | $signalLevel; |
2439 | } |
2440 | |
83ee9e09 |
2441 | sub CvGV_name { |
2442 | my $in = shift; |
2443 | my $name = CvGV_name_or_bust($in); |
2444 | defined $name ? $name : $in; |
2445 | } |
2446 | |
2447 | sub CvGV_name_or_bust { |
2448 | my $in = shift; |
2449 | return if $skipCvGV; # Backdoor to avoid problems if XS broken... |
2450 | $in = \&$in; # Hard reference... |
2451 | eval {require Devel::Peek; 1} or return; |
2452 | my $gv = Devel::Peek::CvGV($in) or return; |
2453 | *$gv{PACKAGE} . '::' . *$gv{NAME}; |
2454 | } |
2455 | |
1d06cb2d |
2456 | sub find_sub { |
2457 | my $subr = shift; |
1d06cb2d |
2458 | $sub{$subr} or do { |
83ee9e09 |
2459 | return unless defined &$subr; |
2460 | my $name = CvGV_name_or_bust($subr); |
2461 | my $data; |
2462 | $data = $sub{$name} if defined $name; |
2463 | return $data if defined $data; |
2464 | |
2465 | # Old stupid way... |
1d06cb2d |
2466 | $subr = \&$subr; # Hard reference |
2467 | my $s; |
2468 | for (keys %sub) { |
2469 | $s = $_, last if $subr eq \&$_; |
2470 | } |
2471 | $sub{$s} if $s; |
2472 | } |
2473 | } |
2474 | |
2475 | sub methods { |
2476 | my $class = shift; |
2477 | $class = ref $class if ref $class; |
2478 | local %seen; |
2479 | local %packs; |
2480 | methods_via($class, '', 1); |
2481 | methods_via('UNIVERSAL', 'UNIVERSAL', 0); |
2482 | } |
2483 | |
2484 | sub methods_via { |
2485 | my $class = shift; |
2486 | return if $packs{$class}++; |
2487 | my $prefix = shift; |
2488 | my $prepend = $prefix ? "via $prefix: " : ''; |
2489 | my $name; |
055fd3a9 |
2490 | for $name (grep {defined &{${"${class}::"}{$_}}} |
2491 | sort keys %{"${class}::"}) { |
477ea2b1 |
2492 | next if $seen{ $name }++; |
1d06cb2d |
2493 | print $DB::OUT "$prepend$name\n"; |
2494 | } |
2495 | return unless shift; # Recurse? |
055fd3a9 |
2496 | for $name (@{"${class}::ISA"}) { |
1d06cb2d |
2497 | $prepend = $prefix ? $prefix . " -> $name" : $name; |
2498 | methods_via($name, $prepend, 1); |
2499 | } |
2500 | } |
2501 | |
055fd3a9 |
2502 | sub setman { |
2503 | $doccmd = $^O !~ /^(?:MSWin32|VMS|os2|dos|amigaos|riscos|MacOS)\z/s |
2504 | ? "man" # O Happy Day! |
2505 | : "perldoc"; # Alas, poor unfortunates |
2506 | } |
2507 | |
2508 | sub runman { |
2509 | my $page = shift; |
2510 | unless ($page) { |
2511 | &system("$doccmd $doccmd"); |
2512 | return; |
2513 | } |
2514 | # this way user can override, like with $doccmd="man -Mwhatever" |
2515 | # or even just "man " to disable the path check. |
2516 | unless ($doccmd eq 'man') { |
2517 | &system("$doccmd $page"); |
2518 | return; |
2519 | } |
2520 | |
2521 | $page = 'perl' if lc($page) eq 'help'; |
2522 | |
2523 | require Config; |
2524 | my $man1dir = $Config::Config{'man1dir'}; |
2525 | my $man3dir = $Config::Config{'man3dir'}; |
2526 | for ($man1dir, $man3dir) { s#/[^/]*\z## if /\S/ } |
2527 | my $manpath = ''; |
2528 | $manpath .= "$man1dir:" if $man1dir =~ /\S/; |
2529 | $manpath .= "$man3dir:" if $man3dir =~ /\S/ && $man1dir ne $man3dir; |
2530 | chop $manpath if $manpath; |
2531 | # harmless if missing, I figure |
2532 | my $oldpath = $ENV{MANPATH}; |
2533 | $ENV{MANPATH} = $manpath if $manpath; |
2534 | my $nopathopt = $^O =~ /dunno what goes here/; |
2535 | if (system($doccmd, |
2536 | # I just *know* there are men without -M |
2537 | (($manpath && !$nopathopt) ? ("-M", $manpath) : ()), |
2538 | split ' ', $page) ) |
2539 | { |
2540 | unless ($page =~ /^perl\w/) { |
2541 | if (grep { $page eq $_ } qw{ |
2542 | 5004delta 5005delta amiga api apio book boot bot call compile |
2543 | cygwin data dbmfilter debug debguts delta diag doc dos dsc embed |
2544 | faq faq1 faq2 faq3 faq4 faq5 faq6 faq7 faq8 faq9 filter fork |
2545 | form func guts hack hist hpux intern ipc lexwarn locale lol mod |
2546 | modinstall modlib number obj op opentut os2 os390 pod port |
2547 | ref reftut run sec style sub syn thrtut tie toc todo toot tootc |
2548 | trap unicode var vms win32 xs xstut |
2549 | }) |
2550 | { |
2551 | $page =~ s/^/perl/; |
2552 | system($doccmd, |
2553 | (($manpath && !$nopathopt) ? ("-M", $manpath) : ()), |
2554 | $page); |
2555 | } |
2556 | } |
2557 | } |
2558 | if (defined $oldpath) { |
2559 | $ENV{MANPATH} = $manpath; |
2560 | } else { |
2561 | delete $ENV{MANPATH}; |
2562 | } |
2563 | } |
2564 | |
d338d6fe |
2565 | # The following BEGIN is very handy if debugger goes havoc, debugging debugger? |
2566 | |
2567 | BEGIN { # This does not compile, alas. |
2568 | $IN = \*STDIN; # For bugs before DB::OUT has been opened |
2569 | $OUT = \*STDERR; # For errors before DB::OUT has been opened |
2570 | $sh = '!'; |
2571 | $rc = ','; |
2572 | @hist = ('?'); |
2573 | $deep = 100; # warning if stack gets this deep |
2574 | $window = 10; |
2575 | $preview = 3; |
2576 | $sub = ''; |
77fb7b16 |
2577 | $SIG{INT} = \&DB::catch; |
ee971a18 |
2578 | # This may be enabled to debug debugger: |
2579 | #$warnLevel = 1 unless defined $warnLevel; |
2580 | #$dieLevel = 1 unless defined $dieLevel; |
2581 | #$signalLevel = 1 unless defined $signalLevel; |
d338d6fe |
2582 | |
2583 | $db_stop = 0; # Compiler warning |
2584 | $db_stop = 1 << 30; |
2585 | $level = 0; # Level of recursive debugging |
55497cff |
2586 | # @stack and $doret are needed in sub sub, which is called for DB::postponed. |
2587 | # Triggers bug (?) in perl is we postpone this until runtime: |
2588 | @postponed = @stack = (0); |
f8b5b99c |
2589 | $stack_depth = 0; # Localized $#stack |
55497cff |
2590 | $doret = -2; |
2591 | $frame = 0; |
d338d6fe |
2592 | } |
2593 | |
54d04a52 |
2594 | BEGIN {$^W = $ini_warn;} # Switch warnings back |
2595 | |
d338d6fe |
2596 | #use Carp; # This did break, left for debuggin |
2597 | |
55497cff |
2598 | sub db_complete { |
08a4aec0 |
2599 | # Specific code for b c l V m f O, &blah, $blah, @blah, %blah |
55497cff |
2600 | my($text, $line, $start) = @_; |
477ea2b1 |
2601 | my ($itext, $search, $prefix, $pack) = |
055fd3a9 |
2602 | ($text, "^\Q${'package'}::\E([^:]+)\$"); |
55497cff |
2603 | |
08a4aec0 |
2604 | return sort grep /^\Q$text/, (keys %sub), qw(postpone load compile), # subroutines |
2605 | (map { /$search/ ? ($1) : () } keys %sub) |
2606 | if (substr $line, 0, $start) =~ /^\|*[blc]\s+((postpone|compile)\s+)?$/; |
2607 | return sort grep /^\Q$text/, values %INC # files |
477ea2b1 |
2608 | if (substr $line, 0, $start) =~ /^\|*b\s+load\s+$/; |
08a4aec0 |
2609 | return sort map {($_, db_complete($_ . "::", "V ", 2))} |
2610 | grep /^\Q$text/, map { /^(.*)::$/ ? ($1) : ()} keys %:: # top-packages |
2611 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ and $text =~ /^\w*$/; |
2612 | return sort map {($_, db_complete($_ . "::", "V ", 2))} |
2613 | grep !/^main::/, |
2614 | grep /^\Q$text/, map { /^(.*)::$/ ? ($prefix . "::$1") : ()} keys %{$prefix . '::'} |
2615 | # packages |
2616 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ |
2617 | and $text =~ /^(.*[^:])::?(\w*)$/ and $prefix = $1; |
477ea2b1 |
2618 | if ( $line =~ /^\|*f\s+(.*)/ ) { # Loaded files |
2619 | # We may want to complete to (eval 9), so $text may be wrong |
2620 | $prefix = length($1) - length($text); |
2621 | $text = $1; |
08a4aec0 |
2622 | return sort |
2623 | map {substr $_, 2 + $prefix} grep /^_<\Q$text/, (keys %main::), $0 |
477ea2b1 |
2624 | } |
55497cff |
2625 | if ((substr $text, 0, 1) eq '&') { # subroutines |
2626 | $text = substr $text, 1; |
2627 | $prefix = "&"; |
08a4aec0 |
2628 | return sort map "$prefix$_", |
2629 | grep /^\Q$text/, |
2630 | (keys %sub), |
2631 | (map { /$search/ ? ($1) : () } |
2632 | keys %sub); |
55497cff |
2633 | } |
2634 | if ($text =~ /^[\$@%](.*)::(.*)/) { # symbols in a package |
2635 | $pack = ($1 eq 'main' ? '' : $1) . '::'; |
2636 | $prefix = (substr $text, 0, 1) . $1 . '::'; |
2637 | $text = $2; |
2638 | my @out |
2639 | = map "$prefix$_", grep /^\Q$text/, grep /^_?[a-zA-Z]/, keys %$pack ; |
2640 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { |
2641 | return db_complete($out[0], $line, $start); |
2642 | } |
08a4aec0 |
2643 | return sort @out; |
55497cff |
2644 | } |
2645 | if ($text =~ /^[\$@%]/) { # symbols (in $package + packages in main) |
2646 | $pack = ($package eq 'main' ? '' : $package) . '::'; |
2647 | $prefix = substr $text, 0, 1; |
2648 | $text = substr $text, 1; |
2649 | my @out = map "$prefix$_", grep /^\Q$text/, |
2650 | (grep /^_?[a-zA-Z]/, keys %$pack), |
2651 | ( $pack eq '::' ? () : (grep /::$/, keys %::) ) ; |
2652 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { |
2653 | return db_complete($out[0], $line, $start); |
2654 | } |
08a4aec0 |
2655 | return sort @out; |
55497cff |
2656 | } |
477ea2b1 |
2657 | if ((substr $line, 0, $start) =~ /^\|*O\b.*\s$/) { # Options after a space |
55497cff |
2658 | my @out = grep /^\Q$text/, @options; |
2659 | my $val = option_val($out[0], undef); |
2660 | my $out = '? '; |
2661 | if (not defined $val or $val =~ /[\n\r]/) { |
2662 | # Can do nothing better |
2663 | } elsif ($val =~ /\s/) { |
2664 | my $found; |
2665 | foreach $l (split //, qq/\"\'\#\|/) { |
2666 | $out = "$l$val$l ", last if (index $val, $l) == -1; |
2667 | } |
2668 | } else { |
2669 | $out = "=$val "; |
2670 | } |
2671 | # Default to value if one completion, to question if many |
a737e074 |
2672 | $rl_attribs->{completer_terminator_character} = (@out == 1 ? $out : '? '); |
08a4aec0 |
2673 | return sort @out; |
55497cff |
2674 | } |
a737e074 |
2675 | return $term->filename_list($text); # filenames |
55497cff |
2676 | } |
2677 | |
43aed9ee |
2678 | sub end_report { |
2679 | print $OUT "Use `q' to quit or `R' to restart. `h q' for details.\n" |
2680 | } |
4639966b |
2681 | |
55497cff |
2682 | END { |
2683 | $finished = $inhibit_exit; # So that some keys may be disabled. |
36477c24 |
2684 | # Do not stop in at_exit() and destructors on exit: |
2685 | $DB::single = !$exiting && !$runnonstop; |
2686 | DB::fake::at_exit() unless $exiting or $runnonstop; |
55497cff |
2687 | } |
2688 | |
2689 | package DB::fake; |
2690 | |
2691 | sub at_exit { |
43aed9ee |
2692 | "Debugged program terminated. Use `q' to quit or `R' to restart."; |
55497cff |
2693 | } |
2694 | |
36477c24 |
2695 | package DB; # Do not trace this 1; below! |
2696 | |
d338d6fe |
2697 | 1; |