Commit | Line | Data |
---|---|---|
a687059c LW |
1 | package DB; |
2 | ||
54d04a52 | 3 | # Debugger for Perl 5.00x; perl5db.pl patch level: |
d338d6fe | 4 | |
2f7e9187 | 5 | $VERSION = 1.15; |
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 | # | |
2f7e9187 MS |
12 | # Before venturing further into these twisty passages, it is |
13 | # wise to read the perldebguts man page or risk the ire of dragons. | |
14 | # | |
36477c24 | 15 | # Perl supplies the values for %sub. It effectively inserts |
16 | # a &DB'DB(); in front of every place that can have a | |
d338d6fe | 17 | # breakpoint. Instead of a subroutine call it calls &DB::sub with |
18 | # $DB::sub being the called subroutine. It also inserts a BEGIN | |
19 | # {require 'perl5db.pl'} before the first line. | |
20 | # | |
55497cff | 21 | # After each `require'd file is compiled, but before it is executed, a |
477ea2b1 | 22 | # call to DB::postponed($main::{'_<'.$filename}) is emulated. Here the |
55497cff | 23 | # $filename is the expanded name of the `require'd file (as found as |
24 | # value of %INC). | |
25 | # | |
26 | # Additional services from Perl interpreter: | |
27 | # | |
28 | # if caller() is called from the package DB, it provides some | |
29 | # additional data. | |
30 | # | |
2f7e9187 MS |
31 | # The array @{$main::{'_<'.$filename}} (herein called @dbline) is the |
32 | # line-by-line contents of $filename. | |
55497cff | 33 | # |
2f7e9187 MS |
34 | # The hash %{'_<'.$filename} (herein called %dbline) contains |
35 | # breakpoints and action (it is keyed by line number), and individual | |
36 | # entries are settable (as opposed to the whole hash). Only true/false | |
37 | # is important to the interpreter, though the values used by | |
38 | # perl5db.pl have the form "$break_condition\0$action". Values are | |
39 | # magical in numeric context. | |
55497cff | 40 | # |
51ee6500 | 41 | # The scalar ${'_<'.$filename} contains $filename. |
55497cff | 42 | # |
d338d6fe | 43 | # Note that no subroutine call is possible until &DB::sub is defined |
36477c24 | 44 | # (for subroutines defined outside of the package DB). In fact the same is |
d338d6fe | 45 | # true if $deep is not defined. |
46 | # | |
47 | # $Log: perldb.pl,v $ | |
48 | ||
49 | # | |
50 | # At start reads $rcfile that may set important options. This file | |
51 | # may define a subroutine &afterinit that will be executed after the | |
52 | # debugger is initialized. | |
53 | # | |
54 | # After $rcfile is read reads environment variable PERLDB_OPTS and parses | |
55 | # it as a rest of `O ...' line in debugger prompt. | |
56 | # | |
57 | # The options that can be specified only at startup: | |
58 | # [To set in $rcfile, call &parse_options("optionName=new_value").] | |
59 | # | |
60 | # TTY - the TTY to use for debugging i/o. | |
61 | # | |
62 | # noTTY - if set, goes in NonStop mode. On interrupt if TTY is not set | |
63 | # uses the value of noTTY or "/tmp/perldbtty$$" to find TTY using | |
64 | # Term::Rendezvous. Current variant is to have the name of TTY in this | |
65 | # file. | |
66 | # | |
67 | # ReadLine - If false, dummy ReadLine is used, so you can debug | |
68 | # ReadLine applications. | |
69 | # | |
70 | # NonStop - if true, no i/o is performed until interrupt. | |
71 | # | |
72 | # LineInfo - file or pipe to print line number info to. If it is a | |
73 | # pipe, a short "emacs like" message is used. | |
74 | # | |
363b4d59 GT |
75 | # RemotePort - host:port to connect to on remote host for remote debugging. |
76 | # | |
d338d6fe | 77 | # Example $rcfile: (delete leading hashes!) |
78 | # | |
79 | # &parse_options("NonStop=1 LineInfo=db.out"); | |
80 | # sub afterinit { $trace = 1; } | |
81 | # | |
82 | # The script will run without human intervention, putting trace | |
83 | # information into db.out. (If you interrupt it, you would better | |
84 | # reset LineInfo to something "interactive"!) | |
85 | # | |
ee971a18 | 86 | ################################################################## |
055fd3a9 GS |
87 | |
88 | # Enhanced by ilya@math.ohio-state.edu (Ilya Zakharevich) | |
055fd3a9 GS |
89 | |
90 | # modified Perl debugger, to be run from Emacs in perldb-mode | |
91 | # Ray Lischner (uunet!mntgfx!lisch) as of 5 Nov 1990 | |
92 | # Johan Vromans -- upgrade to 4.0 pl 10 | |
93 | # Ilya Zakharevich -- patches after 5.001 (and some before ;-) | |
94 | ||
ee971a18 | 95 | # Changelog: |
96 | ||
97 | # A lot of things changed after 0.94. First of all, core now informs | |
98 | # debugger about entry into XSUBs, overloaded operators, tied operations, | |
99 | # BEGIN and END. Handy with `O f=2'. | |
100 | ||
101 | # This can make debugger a little bit too verbose, please be patient | |
102 | # and report your problems promptly. | |
103 | ||
104 | # Now the option frame has 3 values: 0,1,2. | |
105 | ||
106 | # Note that if DESTROY returns a reference to the object (or object), | |
107 | # the deletion of data may be postponed until the next function call, | |
108 | # due to the need to examine the return value. | |
109 | ||
55497cff | 110 | # Changes: 0.95: `v' command shows versions. |
111 | # Changes: 0.96: `v' command shows version of readline. | |
112 | # primitive completion works (dynamic variables, subs for `b' and `l', | |
113 | # options). Can `p %var' | |
114 | # Better help (`h <' now works). New commands <<, >>, {, {{. | |
115 | # {dump|print}_trace() coded (to be able to do it from <<cmd). | |
116 | # `c sub' documented. | |
117 | # At last enough magic combined to stop after the end of debuggee. | |
118 | # !! should work now (thanks to Emacs bracket matching an extra | |
119 | # `]' in a regexp is caught). | |
120 | # `L', `D' and `A' span files now (as documented). | |
121 | # Breakpoints in `require'd code are possible (used in `R'). | |
122 | # Some additional words on internal work of debugger. | |
123 | # `b load filename' implemented. | |
124 | # `b postpone subr' implemented. | |
04e43a21 | 125 | # now only `q' exits debugger (overwritable on $inhibit_exit). |
55497cff | 126 | # When restarting debugger breakpoints/actions persist. |
127 | # Buglet: When restarting debugger only one breakpoint/action per | |
128 | # autoloaded function persists. | |
36477c24 | 129 | # Changes: 0.97: NonStop will not stop in at_exit(). |
130 | # Option AutoTrace implemented. | |
131 | # Trace printed differently if frames are printed too. | |
1d06cb2d IZ |
132 | # new `inhibitExit' option. |
133 | # printing of a very long statement interruptible. | |
134 | # Changes: 0.98: New command `m' for printing possible methods | |
04e43a21 | 135 | # 'l -' is a synonym for `-'. |
1d06cb2d IZ |
136 | # Cosmetic bugs in printing stack trace. |
137 | # `frame' & 8 to print "expanded args" in stack trace. | |
138 | # Can list/break in imported subs. | |
139 | # new `maxTraceLen' option. | |
140 | # frame & 4 and frame & 8 granted. | |
141 | # new command `m' | |
142 | # nonstoppable lines do not have `:' near the line number. | |
143 | # `b compile subname' implemented. | |
144 | # Will not use $` any more. | |
145 | # `-' behaves sane now. | |
477ea2b1 IZ |
146 | # Changes: 0.99: Completion for `f', `m'. |
147 | # `m' will remove duplicate names instead of duplicate functions. | |
148 | # `b load' strips trailing whitespace. | |
149 | # completion ignores leading `|'; takes into account current package | |
150 | # when completing a subroutine name (same for `l'). | |
055fd3a9 GS |
151 | # Changes: 1.07: Many fixed by tchrist 13-March-2000 |
152 | # BUG FIXES: | |
04e43a21 | 153 | # + Added bare minimal security checks on perldb rc files, plus |
055fd3a9 GS |
154 | # comments on what else is needed. |
155 | # + Fixed the ornaments that made "|h" completely unusable. | |
156 | # They are not used in print_help if they will hurt. Strip pod | |
157 | # if we're paging to less. | |
158 | # + Fixed mis-formatting of help messages caused by ornaments | |
159 | # to restore Larry's original formatting. | |
160 | # + Fixed many other formatting errors. The code is still suboptimal, | |
04e43a21 | 161 | # and needs a lot of work at restructuring. It's also misindented |
055fd3a9 GS |
162 | # in many places. |
163 | # + Fixed bug where trying to look at an option like your pager | |
164 | # shows "1". | |
165 | # + Fixed some $? processing. Note: if you use csh or tcsh, you will | |
166 | # lose. You should consider shell escapes not using their shell, | |
167 | # or else not caring about detailed status. This should really be | |
168 | # unified into one place, too. | |
169 | # + Fixed bug where invisible trailing whitespace on commands hoses you, | |
04e43a21 | 170 | # tricking Perl into thinking you weren't calling a debugger command! |
055fd3a9 GS |
171 | # + Fixed bug where leading whitespace on commands hoses you. (One |
172 | # suggests a leading semicolon or any other irrelevant non-whitespace | |
173 | # to indicate literal Perl code.) | |
174 | # + Fixed bugs that ate warnings due to wrong selected handle. | |
175 | # + Fixed a precedence bug on signal stuff. | |
176 | # + Fixed some unseemly wording. | |
177 | # + Fixed bug in help command trying to call perl method code. | |
178 | # + Fixed to call dumpvar from exception handler. SIGPIPE killed us. | |
179 | # ENHANCEMENTS: | |
180 | # + Added some comments. This code is still nasty spaghetti. | |
181 | # + Added message if you clear your pre/post command stacks which was | |
182 | # very easy to do if you just typed a bare >, <, or {. (A command | |
183 | # without an argument should *never* be a destructive action; this | |
184 | # API is fundamentally screwed up; likewise option setting, which | |
185 | # is equally buggered.) | |
186 | # + Added command stack dump on argument of "?" for >, <, or {. | |
187 | # + Added a semi-built-in doc viewer command that calls man with the | |
188 | # proper %Config::Config path (and thus gets caching, man -k, etc), | |
189 | # or else perldoc on obstreperous platforms. | |
190 | # + Added to and rearranged the help information. | |
191 | # + Detected apparent misuse of { ... } to declare a block; this used | |
192 | # to work but now is a command, and mysteriously gave no complaint. | |
04e43a21 DL |
193 | # |
194 | # Changes: 1.08: Apr 25, 2001 Jon Eveland <jweveland@yahoo.com> | |
195 | # BUG FIX: | |
196 | # + This patch to perl5db.pl cleans up formatting issues on the help | |
197 | # summary (h h) screen in the debugger. Mostly columnar alignment | |
198 | # issues, plus converted the printed text to use all spaces, since | |
199 | # tabs don't seem to help much here. | |
200 | # | |
201 | # Changes: 1.09: May 19, 2001 Ilya Zakharevich <ilya@math.ohio-state.edu> | |
202 | # 0) Minor bugs corrected; | |
203 | # a) Support for auto-creation of new TTY window on startup, either | |
204 | # unconditionally, or if started as a kid of another debugger session; | |
205 | # b) New `O'ption CreateTTY | |
206 | # I<CreateTTY> bits control attempts to create a new TTY on events: | |
207 | # 1: on fork() 2: debugger is started inside debugger | |
208 | # 4: on startup | |
209 | # c) Code to auto-create a new TTY window on OS/2 (currently one one | |
210 | # extra window per session - need named pipes to have more...); | |
211 | # d) Simplified interface for custom createTTY functions (with a backward | |
212 | # compatibility hack); now returns the TTY name to use; return of '' | |
213 | # means that the function reset the I/O handles itself; | |
214 | # d') Better message on the semantic of custom createTTY function; | |
215 | # e) Convert the existing code to create a TTY into a custom createTTY | |
216 | # function; | |
217 | # f) Consistent support for TTY names of the form "TTYin,TTYout"; | |
218 | # g) Switch line-tracing output too to the created TTY window; | |
219 | # h) make `b fork' DWIM with CORE::GLOBAL::fork; | |
220 | # i) High-level debugger API cmd_*(): | |
221 | # cmd_b_load($filenamepart) # b load filenamepart | |
222 | # cmd_b_line($lineno [, $cond]) # b lineno [cond] | |
223 | # cmd_b_sub($sub [, $cond]) # b sub [cond] | |
224 | # cmd_stop() # Control-C | |
225 | # cmd_d($lineno) # d lineno | |
226 | # The cmd_*() API returns FALSE on failure; in this case it outputs | |
227 | # the error message to the debugging output. | |
228 | # j) Low-level debugger API | |
229 | # break_on_load($filename) # b load filename | |
230 | # @files = report_break_on_load() # List files with load-breakpoints | |
231 | # breakable_line_in_filename($name, $from [, $to]) | |
232 | # # First breakable line in the | |
233 | # # range $from .. $to. $to defaults | |
234 | # # to $from, and may be less than $to | |
235 | # breakable_line($from [, $to]) # Same for the current file | |
236 | # break_on_filename_line($name, $lineno [, $cond]) | |
237 | # # Set breakpoint,$cond defaults to 1 | |
238 | # break_on_filename_line_range($name, $from, $to [, $cond]) | |
239 | # # As above, on the first | |
240 | # # breakable line in range | |
241 | # break_on_line($lineno [, $cond]) # As above, in the current file | |
242 | # break_subroutine($sub [, $cond]) # break on the first breakable line | |
243 | # ($name, $from, $to) = subroutine_filename_lines($sub) | |
244 | # # The range of lines of the text | |
245 | # The low-level API returns TRUE on success, and die()s on failure. | |
246 | # | |
247 | # Changes: 1.10: May 23, 2001 Daniel Lewart <d-lewart@uiuc.edu> | |
248 | # BUG FIXES: | |
249 | # + Fixed warnings generated by "perl -dWe 42" | |
250 | # + Corrected spelling errors | |
251 | # + Squeezed Help (h) output into 80 columns | |
600d99fa DL |
252 | # |
253 | # Changes: 1.11: May 24, 2001 David Dyck <dcd@tc.fluke.com> | |
254 | # + Made "x @INC" work like it used to | |
255 | # | |
256 | # Changes: 1.12: May 24, 2001 Daniel Lewart <d-lewart@uiuc.edu> | |
257 | # + Fixed warnings generated by "O" (Show debugger options) | |
258 | # + Fixed warnings generated by "p 42" (Print expression) | |
6f891d7d SM |
259 | # Changes: 1.13: Jun 19, 2001 Scott.L.Miller@compaq.com |
260 | # + Added windowSize option | |
2f7e9187 MS |
261 | # Changes: 1.14: Oct 9, 2001 multiple |
262 | # + Clean up after itself on VMS (Charles Lane in 12385) | |
263 | # + Adding "@ file" syntax (Peter Scott in 12014) | |
264 | # + Debug reloading selfloaded stuff (Ilya Zakharevich in 11457) | |
265 | # + $^S and other debugger fixes (Ilya Zakharevich in 11120) | |
266 | # + Forgot a my() declaration (Ilya Zakharevich in 11085) | |
267 | # Changes: 1.15: Nov 6, 2001 Michael G Schwern <schwern@pobox.com> | |
268 | # + Updated 1.14 change log | |
269 | # + Added *dbline explainatory comments | |
270 | # + Mentioning perldebguts man page | |
ee971a18 | 271 | #################################################################### |
d338d6fe | 272 | |
54d04a52 | 273 | # Needed for the statement after exec(): |
d338d6fe | 274 | |
54d04a52 IZ |
275 | BEGIN { $ini_warn = $^W; $^W = 0 } # Switch compilation warnings off until another BEGIN. |
276 | local($^W) = 0; # Switch run-time warnings off during init. | |
d338d6fe | 277 | warn ( # Do not ;-) |
278 | $dumpvar::hashDepth, | |
279 | $dumpvar::arrayDepth, | |
280 | $dumpvar::dumpDBFiles, | |
281 | $dumpvar::dumpPackages, | |
282 | $dumpvar::quoteHighBit, | |
283 | $dumpvar::printUndef, | |
284 | $dumpvar::globPrint, | |
d338d6fe | 285 | $dumpvar::usageOnly, |
286 | @ARGS, | |
287 | $Carp::CarpLevel, | |
54d04a52 | 288 | $panic, |
36477c24 | 289 | $second_time, |
d338d6fe | 290 | ) if 0; |
291 | ||
54d04a52 IZ |
292 | # Command-line + PERLLIB: |
293 | @ini_INC = @INC; | |
294 | ||
d338d6fe | 295 | # $prevwarn = $prevdie = $prevbus = $prevsegv = ''; # Does not help?! |
296 | ||
297 | $trace = $signal = $single = 0; # Uninitialized warning suppression | |
298 | # (local $^W cannot help - other packages!). | |
55497cff | 299 | $inhibit_exit = $option{PrintRet} = 1; |
d338d6fe | 300 | |
22fae026 | 301 | @options = qw(hashDepth arrayDepth DumpDBFiles DumpPackages DumpReused |
d338d6fe | 302 | compactDump veryCompact quote HighBit undefPrint |
36477c24 | 303 | globPrint PrintRet UsageOnly frame AutoTrace |
1d06cb2d | 304 | TTY noTTY ReadLine NonStop LineInfo maxTraceLen |
7a2e2cd6 | 305 | recallCommand ShellBang pager tkRunning ornaments |
3aefca04 | 306 | signalLevel warnLevel dieLevel inhibit_exit |
f1583d8f | 307 | ImmediateStop bareStringify CreateTTY |
6f891d7d | 308 | RemotePort windowSize); |
d338d6fe | 309 | |
310 | %optionVars = ( | |
311 | hashDepth => \$dumpvar::hashDepth, | |
312 | arrayDepth => \$dumpvar::arrayDepth, | |
313 | DumpDBFiles => \$dumpvar::dumpDBFiles, | |
314 | DumpPackages => \$dumpvar::dumpPackages, | |
22fae026 | 315 | DumpReused => \$dumpvar::dumpReused, |
d338d6fe | 316 | HighBit => \$dumpvar::quoteHighBit, |
317 | undefPrint => \$dumpvar::printUndef, | |
318 | globPrint => \$dumpvar::globPrint, | |
f1583d8f IZ |
319 | UsageOnly => \$dumpvar::usageOnly, |
320 | CreateTTY => \$CreateTTY, | |
ee239bfe | 321 | bareStringify => \$dumpvar::bareStringify, |
36477c24 | 322 | frame => \$frame, |
323 | AutoTrace => \$trace, | |
324 | inhibit_exit => \$inhibit_exit, | |
1d06cb2d | 325 | maxTraceLen => \$maxtrace, |
3aefca04 | 326 | ImmediateStop => \$ImmediateStop, |
363b4d59 | 327 | RemotePort => \$remoteport, |
6f891d7d | 328 | windowSize => \$window, |
d338d6fe | 329 | ); |
330 | ||
331 | %optionAction = ( | |
332 | compactDump => \&dumpvar::compactDump, | |
333 | veryCompact => \&dumpvar::veryCompact, | |
334 | quote => \&dumpvar::quote, | |
335 | TTY => \&TTY, | |
336 | noTTY => \&noTTY, | |
337 | ReadLine => \&ReadLine, | |
338 | NonStop => \&NonStop, | |
339 | LineInfo => \&LineInfo, | |
340 | recallCommand => \&recallCommand, | |
341 | ShellBang => \&shellBang, | |
342 | pager => \&pager, | |
343 | signalLevel => \&signalLevel, | |
344 | warnLevel => \&warnLevel, | |
345 | dieLevel => \&dieLevel, | |
a737e074 | 346 | tkRunning => \&tkRunning, |
7a2e2cd6 | 347 | ornaments => \&ornaments, |
363b4d59 | 348 | RemotePort => \&RemotePort, |
d338d6fe | 349 | ); |
350 | ||
351 | %optionRequire = ( | |
352 | compactDump => 'dumpvar.pl', | |
353 | veryCompact => 'dumpvar.pl', | |
354 | quote => 'dumpvar.pl', | |
355 | ); | |
356 | ||
357 | # These guys may be defined in $ENV{PERL5DB} : | |
4c82ae22 | 358 | $rl = 1 unless defined $rl; |
98ea0861 IZ |
359 | $warnLevel = 1 unless defined $warnLevel; |
360 | $dieLevel = 1 unless defined $dieLevel; | |
4c82ae22 GS |
361 | $signalLevel = 1 unless defined $signalLevel; |
362 | $pre = [] unless defined $pre; | |
363 | $post = [] unless defined $post; | |
364 | $pretype = [] unless defined $pretype; | |
f1583d8f | 365 | $CreateTTY = 3 unless defined $CreateTTY; |
055fd3a9 | 366 | |
d338d6fe | 367 | warnLevel($warnLevel); |
368 | dieLevel($dieLevel); | |
369 | signalLevel($signalLevel); | |
055fd3a9 GS |
370 | |
371 | &pager( | |
372 | (defined($ENV{PAGER}) | |
65c9c81d IZ |
373 | ? $ENV{PAGER} |
374 | : ($^O eq 'os2' | |
375 | ? 'cmd /c more' | |
376 | : 'more'))) unless defined $pager; | |
055fd3a9 | 377 | setman(); |
d338d6fe | 378 | &recallCommand("!") unless defined $prc; |
379 | &shellBang("!") unless defined $psh; | |
04e43a21 | 380 | sethelp(); |
1d06cb2d | 381 | $maxtrace = 400 unless defined $maxtrace; |
f1583d8f IZ |
382 | $ini_pids = $ENV{PERLDB_PIDS}; |
383 | if (defined $ENV{PERLDB_PIDS}) { | |
384 | $pids = "[$ENV{PERLDB_PIDS}]"; | |
385 | $ENV{PERLDB_PIDS} .= "->$$"; | |
386 | $term_pid = -1; | |
387 | } else { | |
388 | $ENV{PERLDB_PIDS} = "$$"; | |
389 | $pids = ''; | |
390 | $term_pid = $$; | |
391 | } | |
392 | $pidprompt = ''; | |
04e43a21 | 393 | *emacs = $slave_editor if $slave_editor; # May be used in afterinit()... |
d338d6fe | 394 | |
055fd3a9 | 395 | if (-e "/dev/tty") { # this is the wrong metric! |
d338d6fe | 396 | $rcfile=".perldb"; |
397 | } else { | |
398 | $rcfile="perldb.ini"; | |
399 | } | |
400 | ||
055fd3a9 GS |
401 | # This isn't really safe, because there's a race |
402 | # between checking and opening. The solution is to | |
403 | # open and fstat the handle, but then you have to read and | |
404 | # eval the contents. But then the silly thing gets | |
405 | # your lexical scope, which is unfortunately at best. | |
406 | sub safe_do { | |
407 | my $file = shift; | |
408 | ||
409 | # Just exactly what part of the word "CORE::" don't you understand? | |
410 | local $SIG{__WARN__}; | |
411 | local $SIG{__DIE__}; | |
412 | ||
413 | unless (is_safe_file($file)) { | |
414 | CORE::warn <<EO_GRIPE; | |
415 | perldb: Must not source insecure rcfile $file. | |
416 | You or the superuser must be the owner, and it must not | |
417 | be writable by anyone but its owner. | |
418 | EO_GRIPE | |
419 | return; | |
420 | } | |
421 | ||
422 | do $file; | |
423 | CORE::warn("perldb: couldn't parse $file: $@") if $@; | |
424 | } | |
425 | ||
426 | ||
427 | # Verifies that owner is either real user or superuser and that no | |
428 | # one but owner may write to it. This function is of limited use | |
429 | # when called on a path instead of upon a handle, because there are | |
430 | # no guarantees that filename (by dirent) whose file (by ino) is | |
431 | # eventually accessed is the same as the one tested. | |
432 | # Assumes that the file's existence is not in doubt. | |
433 | sub is_safe_file { | |
434 | my $path = shift; | |
435 | stat($path) || return; # mysteriously vaporized | |
436 | my($dev,$ino,$mode,$nlink,$uid,$gid) = stat(_); | |
437 | ||
438 | return 0 if $uid != 0 && $uid != $<; | |
439 | return 0 if $mode & 022; | |
440 | return 1; | |
441 | } | |
442 | ||
d338d6fe | 443 | if (-f $rcfile) { |
055fd3a9 GS |
444 | safe_do("./$rcfile"); |
445 | } | |
446 | elsif (defined $ENV{HOME} && -f "$ENV{HOME}/$rcfile") { | |
447 | safe_do("$ENV{HOME}/$rcfile"); | |
448 | } | |
449 | elsif (defined $ENV{LOGDIR} && -f "$ENV{LOGDIR}/$rcfile") { | |
450 | safe_do("$ENV{LOGDIR}/$rcfile"); | |
d338d6fe | 451 | } |
452 | ||
453 | if (defined $ENV{PERLDB_OPTS}) { | |
454 | parse_options($ENV{PERLDB_OPTS}); | |
455 | } | |
456 | ||
f1583d8f IZ |
457 | if ( not defined &get_fork_TTY and defined $ENV{TERM} and $ENV{TERM} eq 'xterm' |
458 | and defined $ENV{WINDOWID} and defined $ENV{DISPLAY} ) { # _inside_ XTERM? | |
459 | *get_fork_TTY = \&xterm_get_fork_TTY; | |
460 | } elsif ($^O eq 'os2') { | |
461 | *get_fork_TTY = \&os2_get_fork_TTY; | |
462 | } | |
463 | ||
055fd3a9 GS |
464 | # Here begin the unreadable code. It needs fixing. |
465 | ||
54d04a52 IZ |
466 | if (exists $ENV{PERLDB_RESTART}) { |
467 | delete $ENV{PERLDB_RESTART}; | |
468 | # $restart = 1; | |
469 | @hist = get_list('PERLDB_HIST'); | |
55497cff | 470 | %break_on_load = get_list("PERLDB_ON_LOAD"); |
471 | %postponed = get_list("PERLDB_POSTPONE"); | |
472 | my @had_breakpoints= get_list("PERLDB_VISITED"); | |
473 | for (0 .. $#had_breakpoints) { | |
0c395bd7 CS |
474 | my %pf = get_list("PERLDB_FILE_$_"); |
475 | $postponed_file{$had_breakpoints[$_]} = \%pf if %pf; | |
54d04a52 IZ |
476 | } |
477 | my %opt = get_list("PERLDB_OPT"); | |
478 | my ($opt,$val); | |
479 | while (($opt,$val) = each %opt) { | |
480 | $val =~ s/[\\\']/\\$1/g; | |
481 | parse_options("$opt'$val'"); | |
482 | } | |
483 | @INC = get_list("PERLDB_INC"); | |
484 | @ini_INC = @INC; | |
43aed9ee IZ |
485 | $pretype = [get_list("PERLDB_PRETYPE")]; |
486 | $pre = [get_list("PERLDB_PRE")]; | |
487 | $post = [get_list("PERLDB_POST")]; | |
488 | @typeahead = get_list("PERLDB_TYPEAHEAD", @typeahead); | |
54d04a52 IZ |
489 | } |
490 | ||
d338d6fe | 491 | if ($notty) { |
492 | $runnonstop = 1; | |
493 | } else { | |
055fd3a9 GS |
494 | # Is Perl being run from a slave editor or graphical debugger? |
495 | $slave_editor = ((defined $main::ARGV[0]) and ($main::ARGV[0] eq '-emacs')); | |
496 | $rl = 0, shift(@main::ARGV) if $slave_editor; | |
d338d6fe | 497 | |
498 | #require Term::ReadLine; | |
499 | ||
4fabb596 | 500 | if ($^O eq 'cygwin') { |
8736538c AS |
501 | # /dev/tty is binary. use stdin for textmode |
502 | undef $console; | |
503 | } elsif (-e "/dev/tty") { | |
d338d6fe | 504 | $console = "/dev/tty"; |
39e571d4 | 505 | } elsif ($^O eq 'dos' or -e "con" or $^O eq 'MSWin32') { |
d338d6fe | 506 | $console = "con"; |
6d697788 JH |
507 | } elsif ($^O eq 'MacOS') { |
508 | if ($MacPerl::Version !~ /MPW/) { | |
509 | $console = "Dev:Console:Perl Debug"; # Separate window for application | |
510 | } else { | |
511 | $console = "Dev:Console"; | |
512 | } | |
d338d6fe | 513 | } else { |
514 | $console = "sys\$command"; | |
515 | } | |
516 | ||
055fd3a9 | 517 | if (($^O eq 'MSWin32') and ($slave_editor or defined $ENV{EMACS})) { |
96774cc9 JR |
518 | $console = undef; |
519 | } | |
520 | ||
2986a63f JH |
521 | if ($^O eq 'NetWare') { |
522 | $console = undef; | |
523 | } | |
524 | ||
d338d6fe | 525 | # Around a bug: |
055fd3a9 | 526 | if (defined $ENV{OS2_SHELL} and ($slave_editor or $ENV{WINDOWID})) { # In OS/2 |
d338d6fe | 527 | $console = undef; |
528 | } | |
529 | ||
4d2c4e07 OF |
530 | if ($^O eq 'epoc') { |
531 | $console = undef; | |
532 | } | |
533 | ||
d338d6fe | 534 | $console = $tty if defined $tty; |
535 | ||
363b4d59 GT |
536 | if (defined $remoteport) { |
537 | require IO::Socket; | |
538 | $OUT = new IO::Socket::INET( Timeout => '10', | |
539 | PeerAddr => $remoteport, | |
540 | Proto => 'tcp', | |
541 | ); | |
0aa2ae9a | 542 | if (!$OUT) { die "Unable to connect to remote host: $remoteport\n"; } |
363b4d59 | 543 | $IN = $OUT; |
f1583d8f IZ |
544 | } elsif ($CreateTTY & 4) { |
545 | create_IN_OUT(4); | |
546 | } else { | |
363b4d59 | 547 | if (defined $console) { |
04e43a21 | 548 | my ($i, $o) = split /,/, $console; |
f1583d8f IZ |
549 | $o = $i unless defined $o; |
550 | open(IN,"+<$i") || open(IN,"<$i") || open(IN,"<&STDIN"); | |
551 | open(OUT,"+>$o") || open(OUT,">$o") || open(OUT,">&STDERR") | |
363b4d59 GT |
552 | || open(OUT,">&STDOUT"); # so we don't dongle stdout |
553 | } else { | |
554 | open(IN,"<&STDIN"); | |
555 | open(OUT,">&STDERR") || open(OUT,">&STDOUT"); # so we don't dongle stdout | |
556 | $console = 'STDIN/OUT'; | |
557 | } | |
558 | # so open("|more") can read from STDOUT and so we don't dingle stdin | |
559 | $IN = \*IN; | |
d338d6fe | 560 | |
363b4d59 GT |
561 | $OUT = \*OUT; |
562 | } | |
5b17b83d | 563 | my $previous = select($OUT); |
d338d6fe | 564 | $| = 1; # for DB::OUT |
5b17b83d | 565 | select($previous); |
d338d6fe | 566 | |
567 | $LINEINFO = $OUT unless defined $LINEINFO; | |
568 | $lineinfo = $console unless defined $lineinfo; | |
569 | ||
d338d6fe | 570 | $header =~ s/.Header: ([^,]+),v(\s+\S+\s+\S+).*$/$1$2/; |
571 | unless ($runnonstop) { | |
f1583d8f IZ |
572 | if ($term_pid eq '-1') { |
573 | print $OUT "\nDaughter DB session started...\n"; | |
574 | } else { | |
575 | print $OUT "\nLoading DB routines from $header\n"; | |
576 | print $OUT ("Editor support ", | |
577 | $slave_editor ? "enabled" : "available", | |
578 | ".\n"); | |
579 | print $OUT "\nEnter h or `h h' for help, or `$doccmd perldebug' for more help.\n\n"; | |
580 | } | |
d338d6fe | 581 | } |
582 | } | |
583 | ||
584 | @ARGS = @ARGV; | |
585 | for (@args) { | |
586 | s/\'/\\\'/g; | |
587 | s/(.*)/'$1'/ unless /^-?[\d.]+$/; | |
588 | } | |
589 | ||
590 | if (defined &afterinit) { # May be defined in $rcfile | |
591 | &afterinit(); | |
592 | } | |
593 | ||
43aed9ee IZ |
594 | $I_m_init = 1; |
595 | ||
d338d6fe | 596 | ############################################################ Subroutines |
597 | ||
d338d6fe | 598 | sub DB { |
36477c24 | 599 | # _After_ the perl program is compiled, $single is set to 1: |
600 | if ($single and not $second_time++) { | |
601 | if ($runnonstop) { # Disable until signal | |
f8b5b99c | 602 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe | 603 | $stack[$i++] &= ~1; |
604 | } | |
54d04a52 | 605 | $single = 0; |
36477c24 | 606 | # return; # Would not print trace! |
3aefca04 IZ |
607 | } elsif ($ImmediateStop) { |
608 | $ImmediateStop = 0; | |
609 | $signal = 1; | |
54d04a52 | 610 | } |
d338d6fe | 611 | } |
36477c24 | 612 | $runnonstop = 0 if $single or $signal; # Disable it if interactive. |
d338d6fe | 613 | &save; |
d338d6fe | 614 | ($package, $filename, $line) = caller; |
54d04a52 | 615 | $filename_ini = $filename; |
22fae026 | 616 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
d338d6fe | 617 | "package $package;"; # this won't let them modify, alas |
8ebc5c01 | 618 | local(*dbline) = $main::{'_<' . $filename}; |
d338d6fe | 619 | $max = $#dbline; |
04e43a21 | 620 | if ($dbline{$line} && (($stop,$action) = split(/\0/,$dbline{$line}))) { |
d338d6fe | 621 | if ($stop eq '1') { |
622 | $signal |= 1; | |
54d04a52 | 623 | } elsif ($stop) { |
3f521411 | 624 | $evalarg = "\$DB::signal |= 1 if do {$stop}"; &eval; |
d338d6fe | 625 | $dbline{$line} =~ s/;9($|\0)/$1/; |
626 | } | |
627 | } | |
36477c24 | 628 | my $was_signal = $signal; |
6027b9a3 IZ |
629 | if ($trace & 2) { |
630 | for (my $n = 0; $n <= $#to_watch; $n++) { | |
631 | $evalarg = $to_watch[$n]; | |
ed0d1bf7 | 632 | local $onetimeDump; # Do not output results |
6027b9a3 IZ |
633 | my ($val) = &eval; # Fix context (&eval is doing array)? |
634 | $val = ( (defined $val) ? "'$val'" : 'undef' ); | |
635 | if ($val ne $old_watch[$n]) { | |
636 | $signal = 1; | |
637 | print $OUT <<EOP; | |
405ff068 IZ |
638 | Watchpoint $n:\t$to_watch[$n] changed: |
639 | old value:\t$old_watch[$n] | |
640 | new value:\t$val | |
6027b9a3 IZ |
641 | EOP |
642 | $old_watch[$n] = $val; | |
643 | } | |
644 | } | |
645 | } | |
646 | if ($trace & 4) { # User-installed watch | |
647 | return if watchfunction($package, $filename, $line) | |
648 | and not $single and not $was_signal and not ($trace & ~4); | |
649 | } | |
650 | $was_signal = $signal; | |
36477c24 | 651 | $signal = 0; |
6027b9a3 | 652 | if ($single || ($trace & 1) || $was_signal) { |
055fd3a9 | 653 | if ($slave_editor) { |
54d04a52 | 654 | $position = "\032\032$filename:$line:0\n"; |
f1583d8f | 655 | print_lineinfo($position); |
405ff068 | 656 | } elsif ($package eq 'DB::fake') { |
65c9c81d | 657 | $term || &setterm; |
405ff068 IZ |
658 | print_help(<<EOP); |
659 | Debugged program terminated. Use B<q> to quit or B<R> to restart, | |
660 | use B<O> I<inhibit_exit> to avoid stopping after program termination, | |
661 | B<h q>, B<h R> or B<h O> to get additional info. | |
662 | EOP | |
663 | $package = 'main'; | |
363b4d59 | 664 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
405ff068 | 665 | "package $package;"; # this won't let them modify, alas |
d338d6fe | 666 | } else { |
667 | $sub =~ s/\'/::/; | |
668 | $prefix = $sub =~ /::/ ? "" : "${'package'}::"; | |
669 | $prefix .= "$sub($filename:"; | |
670 | $after = ($dbline[$line] =~ /\n$/ ? '' : "\n"); | |
671 | if (length($prefix) > 30) { | |
54d04a52 | 672 | $position = "$prefix$line):\n$line:\t$dbline[$line]$after"; |
d338d6fe | 673 | $prefix = ""; |
674 | $infix = ":\t"; | |
675 | } else { | |
676 | $infix = "):\t"; | |
54d04a52 | 677 | $position = "$prefix$line$infix$dbline[$line]$after"; |
36477c24 | 678 | } |
679 | if ($frame) { | |
f1583d8f | 680 | print_lineinfo(' ' x $stack_depth, "$line:\t$dbline[$line]$after"); |
36477c24 | 681 | } else { |
f1583d8f | 682 | print_lineinfo($position); |
d338d6fe | 683 | } |
684 | for ($i = $line + 1; $i <= $max && $dbline[$i] == 0; ++$i) { #{ vi | |
685 | last if $dbline[$i] =~ /^\s*[\;\}\#\n]/; | |
36477c24 | 686 | last if $signal; |
d338d6fe | 687 | $after = ($dbline[$i] =~ /\n$/ ? '' : "\n"); |
54d04a52 | 688 | $incr_pos = "$prefix$i$infix$dbline[$i]$after"; |
54d04a52 | 689 | $position .= $incr_pos; |
36477c24 | 690 | if ($frame) { |
f1583d8f | 691 | print_lineinfo(' ' x $stack_depth, "$i:\t$dbline[$i]$after"); |
36477c24 | 692 | } else { |
f1583d8f | 693 | print_lineinfo($incr_pos); |
36477c24 | 694 | } |
d338d6fe | 695 | } |
696 | } | |
697 | } | |
698 | $evalarg = $action, &eval if $action; | |
36477c24 | 699 | if ($single || $was_signal) { |
d338d6fe | 700 | local $level = $level + 1; |
e63173ce IZ |
701 | foreach $evalarg (@$pre) { |
702 | &eval; | |
703 | } | |
f8b5b99c | 704 | print $OUT $stack_depth . " levels deep in subroutine calls!\n" |
d338d6fe | 705 | if $single & 4; |
706 | $start = $line; | |
1d06cb2d | 707 | $incr = -1; # for backward motion. |
6657d1ba | 708 | @typeahead = (@$pretype, @typeahead); |
d338d6fe | 709 | CMD: |
710 | while (($term || &setterm), | |
f1583d8f IZ |
711 | ($term_pid == $$ or resetterm(1)), |
712 | defined ($cmd=&readline("$pidprompt DB" . ('<' x $level) . | |
54d04a52 | 713 | ($#hist+1) . ('>' x $level) . |
055fd3a9 GS |
714 | " "))) |
715 | { | |
d338d6fe | 716 | $single = 0; |
717 | $signal = 0; | |
718 | $cmd =~ s/\\$/\n/ && do { | |
54d04a52 | 719 | $cmd .= &readline(" cont: "); |
d338d6fe | 720 | redo CMD; |
721 | }; | |
d338d6fe | 722 | $cmd =~ /^$/ && ($cmd = $laststep); |
723 | push(@hist,$cmd) if length($cmd) > 1; | |
724 | PIPE: { | |
3dcd9d33 GS |
725 | $cmd =~ s/^\s+//s; # trim annoying leading whitespace |
726 | $cmd =~ s/\s+$//s; # trim annoying trailing whitespace | |
d338d6fe | 727 | ($i) = split(/\s+/,$cmd); |
055fd3a9 | 728 | if ($alias{$i}) { |
3dcd9d33 GS |
729 | # squelch the sigmangler |
730 | local $SIG{__DIE__}; | |
731 | local $SIG{__WARN__}; | |
055fd3a9 | 732 | eval "\$cmd =~ $alias{$i}"; |
3dcd9d33 GS |
733 | if ($@) { |
734 | print $OUT "Couldn't evaluate `$i' alias: $@"; | |
735 | next CMD; | |
736 | } | |
055fd3a9 | 737 | } |
bf25f2b5 | 738 | $cmd =~ /^q$/ && ($fall_off_end = 1) && clean_ENV() && exit $?; |
d338d6fe | 739 | $cmd =~ /^h$/ && do { |
6027b9a3 | 740 | print_help($help); |
d338d6fe | 741 | next CMD; }; |
742 | $cmd =~ /^h\s+h$/ && do { | |
6027b9a3 | 743 | print_help($summary); |
d338d6fe | 744 | next CMD; }; |
055fd3a9 GS |
745 | # support long commands; otherwise bogus errors |
746 | # happen when you ask for h on <CR> for example | |
747 | $cmd =~ /^h\s+(\S.*)$/ && do { | |
748 | my $asked = $1; # for proper errmsg | |
749 | my $qasked = quotemeta($asked); # for searching | |
750 | # XXX: finds CR but not <CR> | |
751 | if ($help =~ /^<?(?:[IB]<)$qasked/m) { | |
752 | while ($help =~ /^(<?(?:[IB]<)$qasked([\s\S]*?)\n)(?!\s)/mg) { | |
6027b9a3 | 753 | print_help($1); |
55497cff | 754 | } |
d338d6fe | 755 | } else { |
6027b9a3 | 756 | print_help("B<$asked> is not a debugger command.\n"); |
d338d6fe | 757 | } |
758 | next CMD; }; | |
759 | $cmd =~ /^t$/ && do { | |
3fbd6552 | 760 | $trace ^= 1; |
6027b9a3 IZ |
761 | print $OUT "Trace = " . |
762 | (($trace & 1) ? "on" : "off" ) . "\n"; | |
d338d6fe | 763 | next CMD; }; |
764 | $cmd =~ /^S(\s+(!)?(.+))?$/ && do { | |
765 | $Srev = defined $2; $Spatt = $3; $Snocheck = ! defined $1; | |
766 | foreach $subname (sort(keys %sub)) { | |
767 | if ($Snocheck or $Srev^($subname =~ /$Spatt/)) { | |
768 | print $OUT $subname,"\n"; | |
769 | } | |
770 | } | |
771 | next CMD; }; | |
ee971a18 | 772 | $cmd =~ /^v$/ && do { |
773 | list_versions(); next CMD}; | |
d338d6fe | 774 | $cmd =~ s/^X\b/V $package/; |
775 | $cmd =~ /^V$/ && do { | |
776 | $cmd = "V $package"; }; | |
777 | $cmd =~ /^V\b\s*(\S+)\s*(.*)/ && do { | |
778 | local ($savout) = select($OUT); | |
779 | $packname = $1; | |
780 | @vars = split(' ',$2); | |
781 | do 'dumpvar.pl' unless defined &main::dumpvar; | |
782 | if (defined &main::dumpvar) { | |
54d04a52 | 783 | local $frame = 0; |
ee971a18 | 784 | local $doret = -2; |
055fd3a9 GS |
785 | # must detect sigpipe failures |
786 | eval { &main::dumpvar($packname,@vars) }; | |
787 | if ($@) { | |
788 | die unless $@ =~ /dumpvar print failed/; | |
789 | } | |
d338d6fe | 790 | } else { |
791 | print $OUT "dumpvar.pl not available.\n"; | |
792 | } | |
793 | select ($savout); | |
794 | next CMD; }; | |
795 | $cmd =~ s/^x\b/ / && do { # So that will be evaled | |
1d06cb2d IZ |
796 | $onetimeDump = 'dump'; }; |
797 | $cmd =~ s/^m\s+([\w:]+)\s*$/ / && do { | |
798 | methods($1); next CMD}; | |
799 | $cmd =~ s/^m\b/ / && do { # So this will be evaled | |
800 | $onetimeDump = 'methods'; }; | |
d338d6fe | 801 | $cmd =~ /^f\b\s*(.*)/ && do { |
802 | $file = $1; | |
477ea2b1 | 803 | $file =~ s/\s+$//; |
d338d6fe | 804 | if (!$file) { |
805 | print $OUT "The old f command is now the r command.\n"; | |
806 | print $OUT "The new f command switches filenames.\n"; | |
807 | next CMD; | |
808 | } | |
809 | if (!defined $main::{'_<' . $file}) { | |
810 | if (($try) = grep(m#^_<.*$file#, keys %main::)) {{ | |
477ea2b1 IZ |
811 | $try = substr($try,2); |
812 | print $OUT "Choosing $try matching `$file':\n"; | |
813 | $file = $try; | |
d338d6fe | 814 | }} |
815 | } | |
816 | if (!defined $main::{'_<' . $file}) { | |
04fb8f4b | 817 | print $OUT "No file matching `$file' is loaded.\n"; |
d338d6fe | 818 | next CMD; |
819 | } elsif ($file ne $filename) { | |
8ebc5c01 | 820 | *dbline = $main::{'_<' . $file}; |
d338d6fe | 821 | $max = $#dbline; |
822 | $filename = $file; | |
823 | $start = 1; | |
824 | $cmd = "l"; | |
477ea2b1 IZ |
825 | } else { |
826 | print $OUT "Already in $file.\n"; | |
827 | next CMD; | |
828 | } | |
829 | }; | |
1d06cb2d | 830 | $cmd =~ s/^l\s+-\s*$/-/; |
83ee9e09 GS |
831 | $cmd =~ /^([lb])\b\s*(\$.*)/s && do { |
832 | $evalarg = $2; | |
833 | my ($s) = &eval; | |
834 | print($OUT "Error: $@\n"), next CMD if $@; | |
835 | $s = CvGV_name($s); | |
836 | print($OUT "Interpreted as: $1 $s\n"); | |
837 | $cmd = "$1 $s"; | |
838 | }; | |
839 | $cmd =~ /^l\b\s*([\':A-Za-z_][\':\w]*(\[.*\])?)/s && do { | |
f1583d8f | 840 | my $s = $subname = $1; |
d338d6fe | 841 | $subname =~ s/\'/::/; |
477ea2b1 IZ |
842 | $subname = $package."::".$subname |
843 | unless $subname =~ /::/; | |
f1583d8f IZ |
844 | $subname = "CORE::GLOBAL::$s" |
845 | if not defined &$subname and $s !~ /::/ | |
846 | and defined &{"CORE::GLOBAL::$s"}; | |
d338d6fe | 847 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
83ee9e09 | 848 | @pieces = split(/:/,find_sub($subname) || $sub{$subname}); |
d338d6fe | 849 | $subrange = pop @pieces; |
850 | $file = join(':', @pieces); | |
851 | if ($file ne $filename) { | |
bee32ff8 | 852 | print $OUT "Switching to file '$file'.\n" |
055fd3a9 | 853 | unless $slave_editor; |
8ebc5c01 | 854 | *dbline = $main::{'_<' . $file}; |
d338d6fe | 855 | $max = $#dbline; |
856 | $filename = $file; | |
857 | } | |
858 | if ($subrange) { | |
859 | if (eval($subrange) < -$window) { | |
860 | $subrange =~ s/-.*/+/; | |
861 | } | |
862 | $cmd = "l $subrange"; | |
863 | } else { | |
864 | print $OUT "Subroutine $subname not found.\n"; | |
865 | next CMD; | |
866 | } }; | |
54d04a52 | 867 | $cmd =~ /^\.$/ && do { |
1d06cb2d | 868 | $incr = -1; # for backward motion. |
54d04a52 IZ |
869 | $start = $line; |
870 | $filename = $filename_ini; | |
8ebc5c01 | 871 | *dbline = $main::{'_<' . $filename}; |
54d04a52 | 872 | $max = $#dbline; |
f1583d8f | 873 | print_lineinfo($position); |
54d04a52 | 874 | next CMD }; |
d338d6fe | 875 | $cmd =~ /^w\b\s*(\d*)$/ && do { |
876 | $incr = $window - 1; | |
877 | $start = $1 if $1; | |
878 | $start -= $preview; | |
54d04a52 | 879 | #print $OUT 'l ' . $start . '-' . ($start + $incr); |
d338d6fe | 880 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
881 | $cmd =~ /^-$/ && do { | |
1d06cb2d IZ |
882 | $start -= $incr + $window + 1; |
883 | $start = 1 if $start <= 0; | |
d338d6fe | 884 | $incr = $window - 1; |
1d06cb2d | 885 | $cmd = 'l ' . ($start) . '+'; }; |
d338d6fe | 886 | $cmd =~ /^l$/ && do { |
887 | $incr = $window - 1; | |
888 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; | |
889 | $cmd =~ /^l\b\s*(\d*)\+(\d*)$/ && do { | |
890 | $start = $1 if $1; | |
891 | $incr = $2; | |
892 | $incr = $window - 1 unless $incr; | |
893 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; | |
54d04a52 IZ |
894 | $cmd =~ /^l\b\s*((-?[\d\$\.]+)([-,]([\d\$\.]+))?)?/ && do { |
895 | $end = (!defined $2) ? $max : ($4 ? $4 : $2); | |
d338d6fe | 896 | $end = $max if $end > $max; |
897 | $i = $2; | |
898 | $i = $line if $i eq '.'; | |
899 | $i = 1 if $i < 1; | |
1d06cb2d | 900 | $incr = $end - $i; |
055fd3a9 | 901 | if ($slave_editor) { |
d338d6fe | 902 | print $OUT "\032\032$filename:$i:0\n"; |
903 | $i = $end; | |
904 | } else { | |
905 | for (; $i <= $end; $i++) { | |
1b4321cf | 906 | my ($stop,$action); |
04e43a21 DL |
907 | ($stop,$action) = split(/\0/, $dbline{$i}) if |
908 | $dbline{$i}; | |
54d04a52 IZ |
909 | $arrow = ($i==$line |
910 | and $filename eq $filename_ini) | |
911 | ? '==>' | |
36477c24 | 912 | : ($dbline[$i]+0 ? ':' : ' ') ; |
54d04a52 IZ |
913 | $arrow .= 'b' if $stop; |
914 | $arrow .= 'a' if $action; | |
915 | print $OUT "$i$arrow\t", $dbline[$i]; | |
65c9c81d | 916 | $i++, last if $signal; |
d338d6fe | 917 | } |
65c9c81d | 918 | print $OUT "\n" unless $dbline[$i-1] =~ /\n$/; |
d338d6fe | 919 | } |
920 | $start = $i; # remember in case they want more | |
921 | $start = $max if $start > $max; | |
922 | next CMD; }; | |
923 | $cmd =~ /^D$/ && do { | |
55497cff | 924 | print $OUT "Deleting all breakpoints...\n"; |
925 | my $file; | |
926 | for $file (keys %had_breakpoints) { | |
8ebc5c01 | 927 | local *dbline = $main::{'_<' . $file}; |
55497cff | 928 | my $max = $#dbline; |
929 | my $was; | |
930 | ||
d338d6fe | 931 | for ($i = 1; $i <= $max ; $i++) { |
932 | if (defined $dbline{$i}) { | |
933 | $dbline{$i} =~ s/^[^\0]+//; | |
934 | if ($dbline{$i} =~ s/^\0?$//) { | |
935 | delete $dbline{$i}; | |
936 | } | |
937 | } | |
938 | } | |
3fbd6552 GS |
939 | |
940 | if (not $had_breakpoints{$file} &= ~1) { | |
941 | delete $had_breakpoints{$file}; | |
942 | } | |
55497cff | 943 | } |
944 | undef %postponed; | |
945 | undef %postponed_file; | |
946 | undef %break_on_load; | |
55497cff | 947 | next CMD; }; |
d338d6fe | 948 | $cmd =~ /^L$/ && do { |
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}) { | |
2002527a | 957 | print $OUT "$file:\n" unless $was++; |
55497cff | 958 | print $OUT " $i:\t", $dbline[$i]; |
d338d6fe | 959 | ($stop,$action) = split(/\0/, $dbline{$i}); |
55497cff | 960 | print $OUT " break if (", $stop, ")\n" |
d338d6fe | 961 | if $stop; |
55497cff | 962 | print $OUT " action: ", $action, "\n" |
d338d6fe | 963 | if $action; |
964 | last if $signal; | |
965 | } | |
966 | } | |
55497cff | 967 | } |
968 | if (%postponed) { | |
969 | print $OUT "Postponed breakpoints in subroutines:\n"; | |
970 | my $subname; | |
971 | for $subname (keys %postponed) { | |
972 | print $OUT " $subname\t$postponed{$subname}\n"; | |
973 | last if $signal; | |
974 | } | |
975 | } | |
976 | my @have = map { # Combined keys | |
977 | keys %{$postponed_file{$_}} | |
978 | } keys %postponed_file; | |
979 | if (@have) { | |
980 | print $OUT "Postponed breakpoints in files:\n"; | |
981 | my ($file, $line); | |
982 | for $file (keys %postponed_file) { | |
0c395bd7 | 983 | my $db = $postponed_file{$file}; |
55497cff | 984 | print $OUT " $file:\n"; |
0c395bd7 | 985 | for $line (sort {$a <=> $b} keys %$db) { |
08a4aec0 | 986 | print $OUT " $line:\n"; |
0c395bd7 | 987 | my ($stop,$action) = split(/\0/, $$db{$line}); |
55497cff | 988 | print $OUT " break if (", $stop, ")\n" |
989 | if $stop; | |
990 | print $OUT " action: ", $action, "\n" | |
991 | if $action; | |
992 | last if $signal; | |
993 | } | |
994 | last if $signal; | |
995 | } | |
996 | } | |
997 | if (%break_on_load) { | |
998 | print $OUT "Breakpoints on load:\n"; | |
999 | my $file; | |
1000 | for $file (keys %break_on_load) { | |
1001 | print $OUT " $file\n"; | |
1002 | last if $signal; | |
1003 | } | |
1004 | } | |
6027b9a3 IZ |
1005 | if ($trace & 2) { |
1006 | print $OUT "Watch-expressions:\n"; | |
1007 | my $expr; | |
1008 | for $expr (@to_watch) { | |
1009 | print $OUT " $expr\n"; | |
1010 | last if $signal; | |
1011 | } | |
1012 | } | |
55497cff | 1013 | next CMD; }; |
1014 | $cmd =~ /^b\b\s*load\b\s*(.*)/ && do { | |
477ea2b1 | 1015 | my $file = $1; $file =~ s/\s+$//; |
f1583d8f | 1016 | cmd_b_load($file); |
55497cff | 1017 | next CMD; }; |
1d06cb2d | 1018 | $cmd =~ /^b\b\s*(postpone|compile)\b\s*([':A-Za-z_][':\w]*)\s*(.*)/ && do { |
a223bd61 | 1019 | my $cond = length $3 ? $3 : '1'; |
1d06cb2d | 1020 | my ($subname, $break) = ($2, $1 eq 'postpone'); |
a223bd61 | 1021 | $subname =~ s/\'/::/g; |
55497cff | 1022 | $subname = "${'package'}::" . $subname |
1023 | unless $subname =~ /::/; | |
1024 | $subname = "main".$subname if substr($subname,0,2) eq "::"; | |
1d06cb2d IZ |
1025 | $postponed{$subname} = $break |
1026 | ? "break +0 if $cond" : "compile"; | |
d338d6fe | 1027 | next CMD; }; |
83ee9e09 | 1028 | $cmd =~ /^b\b\s*([':A-Za-z_][':\w]*(?:\[.*\])?)\s*(.*)/ && do { |
d338d6fe | 1029 | $subname = $1; |
a223bd61 | 1030 | $cond = length $2 ? $2 : '1'; |
f1583d8f | 1031 | cmd_b_sub($subname, $cond); |
d338d6fe | 1032 | next CMD; }; |
1033 | $cmd =~ /^b\b\s*(\d*)\s*(.*)/ && do { | |
3fbd6552 | 1034 | $i = $1 || $line; |
31706494 | 1035 | $cond = length $2 ? $2 : '1'; |
f1583d8f | 1036 | cmd_b_line($i, $cond); |
d338d6fe | 1037 | next CMD; }; |
3fbd6552 | 1038 | $cmd =~ /^d\b\s*(\d*)/ && do { |
f1583d8f | 1039 | cmd_d($1 || $line); |
d338d6fe | 1040 | next CMD; }; |
1041 | $cmd =~ /^A$/ && do { | |
3fbd6552 | 1042 | print $OUT "Deleting all actions...\n"; |
55497cff | 1043 | my $file; |
1044 | for $file (keys %had_breakpoints) { | |
8ebc5c01 | 1045 | local *dbline = $main::{'_<' . $file}; |
55497cff | 1046 | my $max = $#dbline; |
1047 | my $was; | |
1048 | ||
d338d6fe | 1049 | for ($i = 1; $i <= $max ; $i++) { |
1050 | if (defined $dbline{$i}) { | |
1051 | $dbline{$i} =~ s/\0[^\0]*//; | |
1052 | delete $dbline{$i} if $dbline{$i} eq ''; | |
1053 | } | |
1054 | } | |
3fbd6552 | 1055 | |
055fd3a9 | 1056 | unless ($had_breakpoints{$file} &= ~2) { |
3fbd6552 GS |
1057 | delete $had_breakpoints{$file}; |
1058 | } | |
55497cff | 1059 | } |
1060 | next CMD; }; | |
d338d6fe | 1061 | $cmd =~ /^O\s*$/ && do { |
1062 | for (@options) { | |
1063 | &dump_option($_); | |
1064 | } | |
1065 | next CMD; }; | |
1066 | $cmd =~ /^O\s*(\S.*)/ && do { | |
1067 | parse_options($1); | |
1068 | next CMD; }; | |
55497cff | 1069 | $cmd =~ /^\<\<\s*(.*)/ && do { # \<\< for CPerl sake: not HERE |
1070 | push @$pre, action($1); | |
1071 | next CMD; }; | |
1072 | $cmd =~ /^>>\s*(.*)/ && do { | |
1073 | push @$post, action($1); | |
1074 | next CMD; }; | |
d338d6fe | 1075 | $cmd =~ /^<\s*(.*)/ && do { |
055fd3a9 | 1076 | unless ($1) { |
e4e99f0d | 1077 | print $OUT "All < actions cleared.\n"; |
055fd3a9 GS |
1078 | $pre = []; |
1079 | next CMD; | |
1080 | } | |
1081 | if ($1 eq '?') { | |
1082 | unless (@$pre) { | |
e4e99f0d | 1083 | print $OUT "No pre-prompt Perl actions.\n"; |
055fd3a9 GS |
1084 | next CMD; |
1085 | } | |
e4e99f0d | 1086 | print $OUT "Perl commands run before each prompt:\n"; |
055fd3a9 | 1087 | for my $action ( @$pre ) { |
e4e99f0d | 1088 | print $OUT "\t< -- $action\n"; |
055fd3a9 GS |
1089 | } |
1090 | next CMD; | |
1091 | } | |
55497cff | 1092 | $pre = [action($1)]; |
d338d6fe | 1093 | next CMD; }; |
1094 | $cmd =~ /^>\s*(.*)/ && do { | |
055fd3a9 | 1095 | unless ($1) { |
e4e99f0d | 1096 | print $OUT "All > actions cleared.\n"; |
055fd3a9 GS |
1097 | $post = []; |
1098 | next CMD; | |
1099 | } | |
1100 | if ($1 eq '?') { | |
1101 | unless (@$post) { | |
e4e99f0d | 1102 | print $OUT "No post-prompt Perl actions.\n"; |
055fd3a9 GS |
1103 | next CMD; |
1104 | } | |
e4e99f0d | 1105 | print $OUT "Perl commands run after each prompt:\n"; |
055fd3a9 | 1106 | for my $action ( @$post ) { |
e4e99f0d | 1107 | print $OUT "\t> -- $action\n"; |
055fd3a9 GS |
1108 | } |
1109 | next CMD; | |
1110 | } | |
55497cff | 1111 | $post = [action($1)]; |
1112 | next CMD; }; | |
1113 | $cmd =~ /^\{\{\s*(.*)/ && do { | |
055fd3a9 | 1114 | if ($cmd =~ /^\{.*\}$/ && unbalanced(substr($cmd,2))) { |
e4e99f0d | 1115 | print $OUT "{{ is now a debugger command\n", |
055fd3a9 GS |
1116 | "use `;{{' if you mean Perl code\n"; |
1117 | $cmd = "h {{"; | |
1118 | redo CMD; | |
1119 | } | |
55497cff | 1120 | push @$pretype, $1; |
1121 | next CMD; }; | |
1122 | $cmd =~ /^\{\s*(.*)/ && do { | |
055fd3a9 | 1123 | unless ($1) { |
e4e99f0d | 1124 | print $OUT "All { actions cleared.\n"; |
055fd3a9 GS |
1125 | $pretype = []; |
1126 | next CMD; | |
1127 | } | |
1128 | if ($1 eq '?') { | |
1129 | unless (@$pretype) { | |
e4e99f0d | 1130 | print $OUT "No pre-prompt debugger actions.\n"; |
055fd3a9 GS |
1131 | next CMD; |
1132 | } | |
e4e99f0d | 1133 | print $OUT "Debugger commands run before each prompt:\n"; |
055fd3a9 | 1134 | for my $action ( @$pretype ) { |
e4e99f0d | 1135 | print $OUT "\t{ -- $action\n"; |
055fd3a9 GS |
1136 | } |
1137 | next CMD; | |
1138 | } | |
1139 | if ($cmd =~ /^\{.*\}$/ && unbalanced(substr($cmd,1))) { | |
e4e99f0d | 1140 | print $OUT "{ is now a debugger command\n", |
055fd3a9 GS |
1141 | "use `;{' if you mean Perl code\n"; |
1142 | $cmd = "h {"; | |
1143 | redo CMD; | |
1144 | } | |
55497cff | 1145 | $pretype = [$1]; |
d338d6fe | 1146 | next CMD; }; |
3fbd6552 GS |
1147 | $cmd =~ /^a\b\s*(\d*)\s*(.*)/ && do { |
1148 | $i = $1 || $line; $j = $2; | |
1149 | if (length $j) { | |
1150 | if ($dbline[$i] == 0) { | |
1151 | print $OUT "Line $i may not have an action.\n"; | |
1152 | } else { | |
1153 | $had_breakpoints{$filename} |= 2; | |
1154 | $dbline{$i} =~ s/\0[^\0]*//; | |
1155 | $dbline{$i} .= "\0" . action($j); | |
1156 | } | |
d338d6fe | 1157 | } else { |
1158 | $dbline{$i} =~ s/\0[^\0]*//; | |
3fbd6552 | 1159 | delete $dbline{$i} if $dbline{$i} eq ''; |
d338d6fe | 1160 | } |
1161 | next CMD; }; | |
1162 | $cmd =~ /^n$/ && do { | |
4639966b | 1163 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe | 1164 | $single = 2; |
1165 | $laststep = $cmd; | |
1166 | last CMD; }; | |
1167 | $cmd =~ /^s$/ && do { | |
4639966b | 1168 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe | 1169 | $single = 1; |
1170 | $laststep = $cmd; | |
1171 | last CMD; }; | |
54d04a52 | 1172 | $cmd =~ /^c\b\s*([\w:]*)\s*$/ && do { |
4639966b | 1173 | end_report(), next CMD if $finished and $level <= 1; |
fb73857a | 1174 | $subname = $i = $1; |
bee32ff8 GS |
1175 | # Probably not needed, since we finish an interactive |
1176 | # sub-session anyway... | |
1177 | # local $filename = $filename; | |
1178 | # local *dbline = *dbline; # XXX Would this work?! | |
54d04a52 | 1179 | if ($i =~ /\D/) { # subroutine name |
fb73857a | 1180 | $subname = $package."::".$subname |
1181 | unless $subname =~ /::/; | |
1182 | ($file,$i) = (find_sub($subname) =~ /^(.*):(.*)$/); | |
54d04a52 IZ |
1183 | $i += 0; |
1184 | if ($i) { | |
1185 | $filename = $file; | |
8ebc5c01 | 1186 | *dbline = $main::{'_<' . $filename}; |
3fbd6552 | 1187 | $had_breakpoints{$filename} |= 1; |
54d04a52 IZ |
1188 | $max = $#dbline; |
1189 | ++$i while $dbline[$i] == 0 && $i < $max; | |
1190 | } else { | |
1191 | print $OUT "Subroutine $subname not found.\n"; | |
1192 | next CMD; | |
1193 | } | |
1194 | } | |
d338d6fe | 1195 | if ($i) { |
1196 | if ($dbline[$i] == 0) { | |
1197 | print $OUT "Line $i not breakable.\n"; | |
1198 | next CMD; | |
1199 | } | |
1200 | $dbline{$i} =~ s/($|\0)/;9$1/; # add one-time-only b.p. | |
1201 | } | |
f8b5b99c | 1202 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe | 1203 | $stack[$i++] &= ~1; |
1204 | } | |
1205 | last CMD; }; | |
1206 | $cmd =~ /^r$/ && do { | |
4639966b | 1207 | end_report(), next CMD if $finished and $level <= 1; |
f8b5b99c IZ |
1208 | $stack[$stack_depth] |= 1; |
1209 | $doret = $option{PrintRet} ? $stack_depth - 1 : -2; | |
d338d6fe | 1210 | last CMD; }; |
54d04a52 | 1211 | $cmd =~ /^R$/ && do { |
55497cff | 1212 | print $OUT "Warning: some settings and command-line options may be lost!\n"; |
54d04a52 IZ |
1213 | my (@script, @flags, $cl); |
1214 | push @flags, '-w' if $ini_warn; | |
1215 | # Put all the old includes at the start to get | |
1216 | # the same debugger. | |
1217 | for (@ini_INC) { | |
1218 | push @flags, '-I', $_; | |
1219 | } | |
1220 | # Arrange for setting the old INC: | |
1221 | set_list("PERLDB_INC", @ini_INC); | |
1222 | if ($0 eq '-e') { | |
1223 | for (1..$#{'::_<-e'}) { # The first line is PERL5DB | |
055fd3a9 | 1224 | chomp ($cl = ${'::_<-e'}[$_]); |
54d04a52 IZ |
1225 | push @script, '-e', $cl; |
1226 | } | |
1227 | } else { | |
1228 | @script = $0; | |
1229 | } | |
1230 | set_list("PERLDB_HIST", | |
1231 | $term->Features->{getHistory} | |
1232 | ? $term->GetHistory : @hist); | |
55497cff | 1233 | my @had_breakpoints = keys %had_breakpoints; |
1234 | set_list("PERLDB_VISITED", @had_breakpoints); | |
54d04a52 | 1235 | set_list("PERLDB_OPT", %option); |
55497cff | 1236 | set_list("PERLDB_ON_LOAD", %break_on_load); |
1237 | my @hard; | |
1238 | for (0 .. $#had_breakpoints) { | |
1239 | my $file = $had_breakpoints[$_]; | |
8ebc5c01 | 1240 | *dbline = $main::{'_<' . $file}; |
0c395bd7 | 1241 | next unless %dbline or $postponed_file{$file}; |
55497cff | 1242 | (push @hard, $file), next |
f41f30cf | 1243 | if $file =~ /^\(\w*eval/; |
55497cff | 1244 | my @add; |
1245 | @add = %{$postponed_file{$file}} | |
0c395bd7 | 1246 | if $postponed_file{$file}; |
55497cff | 1247 | set_list("PERLDB_FILE_$_", %dbline, @add); |
1248 | } | |
1249 | for (@hard) { # Yes, really-really... | |
1250 | # Find the subroutines in this eval | |
8ebc5c01 | 1251 | *dbline = $main::{'_<' . $_}; |
55497cff | 1252 | my ($quoted, $sub, %subs, $line) = quotemeta $_; |
1253 | for $sub (keys %sub) { | |
1254 | next unless $sub{$sub} =~ /^$quoted:(\d+)-(\d+)$/; | |
1255 | $subs{$sub} = [$1, $2]; | |
1256 | } | |
1257 | unless (%subs) { | |
1258 | print $OUT | |
1259 | "No subroutines in $_, ignoring breakpoints.\n"; | |
1260 | next; | |
1261 | } | |
1262 | LINES: for $line (keys %dbline) { | |
1263 | # One breakpoint per sub only: | |
1264 | my ($offset, $sub, $found); | |
1265 | SUBS: for $sub (keys %subs) { | |
1266 | if ($subs{$sub}->[1] >= $line # Not after the subroutine | |
1267 | and (not defined $offset # Not caught | |
1268 | or $offset < 0 )) { # or badly caught | |
1269 | $found = $sub; | |
1270 | $offset = $line - $subs{$sub}->[0]; | |
1271 | $offset = "+$offset", last SUBS if $offset >= 0; | |
1272 | } | |
1273 | } | |
1274 | if (defined $offset) { | |
1275 | $postponed{$found} = | |
1276 | "break $offset if $dbline{$line}"; | |
1277 | } else { | |
1278 | print $OUT "Breakpoint in $_:$line ignored: after all the subroutines.\n"; | |
1279 | } | |
1280 | } | |
54d04a52 | 1281 | } |
55497cff | 1282 | set_list("PERLDB_POSTPONE", %postponed); |
43aed9ee IZ |
1283 | set_list("PERLDB_PRETYPE", @$pretype); |
1284 | set_list("PERLDB_PRE", @$pre); | |
1285 | set_list("PERLDB_POST", @$post); | |
1286 | set_list("PERLDB_TYPEAHEAD", @typeahead); | |
54d04a52 | 1287 | $ENV{PERLDB_RESTART} = 1; |
f1583d8f IZ |
1288 | delete $ENV{PERLDB_PIDS}; # Restore ini state |
1289 | $ENV{PERLDB_PIDS} = $ini_pids if defined $ini_pids; | |
055fd3a9 | 1290 | #print "$^X, '-d', @flags, @script, ($slave_editor ? '-emacs' : ()), @ARGS"; |
04e43a21 | 1291 | exec($^X, '-d', @flags, @script, ($slave_editor ? '-emacs' : ()), @ARGS) || |
54d04a52 IZ |
1292 | print $OUT "exec failed: $!\n"; |
1293 | last CMD; }; | |
d338d6fe | 1294 | $cmd =~ /^T$/ && do { |
36477c24 | 1295 | print_trace($OUT, 1); # skip DB |
d338d6fe | 1296 | next CMD; }; |
6027b9a3 IZ |
1297 | $cmd =~ /^W\s*$/ && do { |
1298 | $trace &= ~2; | |
1299 | @to_watch = @old_watch = (); | |
1300 | next CMD; }; | |
1301 | $cmd =~ /^W\b\s*(.*)/s && do { | |
1302 | push @to_watch, $1; | |
1303 | $evalarg = $1; | |
1304 | my ($val) = &eval; | |
1305 | $val = (defined $val) ? "'$val'" : 'undef' ; | |
1306 | push @old_watch, $val; | |
1307 | $trace |= 2; | |
1308 | next CMD; }; | |
d338d6fe | 1309 | $cmd =~ /^\/(.*)$/ && do { |
1310 | $inpat = $1; | |
1311 | $inpat =~ s:([^\\])/$:$1:; | |
1312 | if ($inpat ne "") { | |
3dcd9d33 GS |
1313 | # squelch the sigmangler |
1314 | local $SIG{__DIE__}; | |
1315 | local $SIG{__WARN__}; | |
d338d6fe | 1316 | eval '$inpat =~ m'."\a$inpat\a"; |
1317 | if ($@ ne "") { | |
1318 | print $OUT "$@"; | |
1319 | next CMD; | |
1320 | } | |
1321 | $pat = $inpat; | |
1322 | } | |
1323 | $end = $start; | |
1d06cb2d | 1324 | $incr = -1; |
d338d6fe | 1325 | eval ' |
1326 | for (;;) { | |
1327 | ++$start; | |
1328 | $start = 1 if ($start > $max); | |
1329 | last if ($start == $end); | |
1330 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { | |
055fd3a9 | 1331 | if ($slave_editor) { |
d338d6fe | 1332 | print $OUT "\032\032$filename:$start:0\n"; |
1333 | } else { | |
1334 | print $OUT "$start:\t", $dbline[$start], "\n"; | |
1335 | } | |
1336 | last; | |
1337 | } | |
1338 | } '; | |
1339 | print $OUT "/$pat/: not found\n" if ($start == $end); | |
1340 | next CMD; }; | |
1341 | $cmd =~ /^\?(.*)$/ && do { | |
1342 | $inpat = $1; | |
1343 | $inpat =~ s:([^\\])\?$:$1:; | |
1344 | if ($inpat ne "") { | |
3dcd9d33 GS |
1345 | # squelch the sigmangler |
1346 | local $SIG{__DIE__}; | |
1347 | local $SIG{__WARN__}; | |
d338d6fe | 1348 | eval '$inpat =~ m'."\a$inpat\a"; |
1349 | if ($@ ne "") { | |
3dcd9d33 | 1350 | print $OUT $@; |
d338d6fe | 1351 | next CMD; |
1352 | } | |
1353 | $pat = $inpat; | |
1354 | } | |
1355 | $end = $start; | |
1d06cb2d | 1356 | $incr = -1; |
d338d6fe | 1357 | eval ' |
1358 | for (;;) { | |
1359 | --$start; | |
1360 | $start = $max if ($start <= 0); | |
1361 | last if ($start == $end); | |
1362 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { | |
055fd3a9 | 1363 | if ($slave_editor) { |
d338d6fe | 1364 | print $OUT "\032\032$filename:$start:0\n"; |
1365 | } else { | |
1366 | print $OUT "$start:\t", $dbline[$start], "\n"; | |
1367 | } | |
1368 | last; | |
1369 | } | |
1370 | } '; | |
1371 | print $OUT "?$pat?: not found\n" if ($start == $end); | |
1372 | next CMD; }; | |
1373 | $cmd =~ /^$rc+\s*(-)?(\d+)?$/ && do { | |
1374 | pop(@hist) if length($cmd) > 1; | |
3fbd6552 | 1375 | $i = $1 ? ($#hist-($2||1)) : ($2||$#hist); |
6921e3ed | 1376 | $cmd = $hist[$i]; |
615b993b | 1377 | print $OUT $cmd, "\n"; |
d338d6fe | 1378 | redo CMD; }; |
55497cff | 1379 | $cmd =~ /^$sh$sh\s*([\x00-\xff]*)/ && do { |
ee971a18 | 1380 | &system($1); |
d338d6fe | 1381 | next CMD; }; |
1382 | $cmd =~ /^$rc([^$rc].*)$/ && do { | |
1383 | $pat = "^$1"; | |
1384 | pop(@hist) if length($cmd) > 1; | |
1385 | for ($i = $#hist; $i; --$i) { | |
1386 | last if $hist[$i] =~ /$pat/; | |
1387 | } | |
1388 | if (!$i) { | |
1389 | print $OUT "No such command!\n\n"; | |
1390 | next CMD; | |
1391 | } | |
6921e3ed | 1392 | $cmd = $hist[$i]; |
615b993b | 1393 | print $OUT $cmd, "\n"; |
d338d6fe | 1394 | redo CMD; }; |
1395 | $cmd =~ /^$sh$/ && do { | |
1396 | &system($ENV{SHELL}||"/bin/sh"); | |
1397 | next CMD; }; | |
ee971a18 | 1398 | $cmd =~ /^$sh\s*([\x00-\xff]*)/ && do { |
055fd3a9 GS |
1399 | # XXX: using csh or tcsh destroys sigint retvals! |
1400 | #&system($1); # use this instead | |
ee971a18 | 1401 | &system($ENV{SHELL}||"/bin/sh","-c",$1); |
d338d6fe | 1402 | next CMD; }; |
1403 | $cmd =~ /^H\b\s*(-(\d+))?/ && do { | |
055fd3a9 | 1404 | $end = $2 ? ($#hist-$2) : 0; |
d338d6fe | 1405 | $hist = 0 if $hist < 0; |
1406 | for ($i=$#hist; $i>$end; $i--) { | |
1407 | print $OUT "$i: ",$hist[$i],"\n" | |
1408 | unless $hist[$i] =~ /^.?$/; | |
1409 | }; | |
1410 | next CMD; }; | |
055fd3a9 GS |
1411 | $cmd =~ /^(?:man|(?:perl)?doc)\b(?:\s+([^(]*))?$/ && do { |
1412 | runman($1); | |
1413 | next CMD; }; | |
b9b857e2 IZ |
1414 | $cmd =~ s/^p$/print {\$DB::OUT} \$_/; |
1415 | $cmd =~ s/^p\b/print {\$DB::OUT} /; | |
3dcd9d33 GS |
1416 | $cmd =~ s/^=\s*// && do { |
1417 | my @keys; | |
1418 | if (length $cmd == 0) { | |
1419 | @keys = sort keys %alias; | |
1420 | } | |
1421 | elsif (my($k,$v) = ($cmd =~ /^(\S+)\s+(\S.*)/)) { | |
1422 | # can't use $_ or kill //g state | |
1423 | for my $x ($k, $v) { $x =~ s/\a/\\a/g } | |
1424 | $alias{$k} = "s\a$k\a$v\a"; | |
1425 | # squelch the sigmangler | |
1426 | local $SIG{__DIE__}; | |
1427 | local $SIG{__WARN__}; | |
1428 | unless (eval "sub { s\a$k\a$v\a }; 1") { | |
1429 | print $OUT "Can't alias $k to $v: $@\n"; | |
1430 | delete $alias{$k}; | |
1431 | next CMD; | |
1432 | } | |
1433 | @keys = ($k); | |
1434 | } | |
1435 | else { | |
1436 | @keys = ($cmd); | |
1437 | } | |
1438 | for my $k (@keys) { | |
1439 | if ((my $v = $alias{$k}) =~ s\as\a$k\a(.*)\a$\a1\a) { | |
1440 | print $OUT "$k\t= $1\n"; | |
1441 | } | |
1442 | elsif (defined $alias{$k}) { | |
d338d6fe | 1443 | print $OUT "$k\t$alias{$k}\n"; |
3dcd9d33 GS |
1444 | } |
1445 | else { | |
1446 | print "No alias for $k\n"; | |
1447 | } | |
1448 | } | |
d338d6fe | 1449 | next CMD; }; |
5bad0d9e PS |
1450 | $cmd =~ /^\@\s*(.*\S)/ && do { |
1451 | if (open my $fh, $1) { | |
1452 | push @cmdfhs, $fh; | |
1453 | } | |
1454 | else { | |
1455 | &warn("Can't execute `$1': $!\n"); | |
1456 | } | |
1457 | next CMD; }; | |
d338d6fe | 1458 | $cmd =~ /^\|\|?\s*[^|]/ && do { |
1459 | if ($pager =~ /^\|/) { | |
1460 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); | |
1461 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); | |
1462 | } else { | |
1463 | open(SAVEOUT,">&OUT") || &warn("Can't save DB::OUT"); | |
1464 | } | |
055fd3a9 | 1465 | fix_less(); |
d338d6fe | 1466 | unless ($piped=open(OUT,$pager)) { |
1467 | &warn("Can't pipe output to `$pager'"); | |
1468 | if ($pager =~ /^\|/) { | |
055fd3a9 GS |
1469 | open(OUT,">&STDOUT") # XXX: lost message |
1470 | || &warn("Can't restore DB::OUT"); | |
d338d6fe | 1471 | open(STDOUT,">&SAVEOUT") |
1472 | || &warn("Can't restore STDOUT"); | |
1473 | close(SAVEOUT); | |
1474 | } else { | |
055fd3a9 GS |
1475 | open(OUT,">&STDOUT") # XXX: lost message |
1476 | || &warn("Can't restore DB::OUT"); | |
d338d6fe | 1477 | } |
1478 | next CMD; | |
1479 | } | |
77fb7b16 | 1480 | $SIG{PIPE}= \&DB::catch if $pager =~ /^\|/ |
055fd3a9 | 1481 | && ("" eq $SIG{PIPE} || "DEFAULT" eq $SIG{PIPE}); |
d338d6fe | 1482 | $selected= select(OUT); |
1483 | $|= 1; | |
1484 | select( $selected ), $selected= "" unless $cmd =~ /^\|\|/; | |
1485 | $cmd =~ s/^\|+\s*//; | |
055fd3a9 GS |
1486 | redo PIPE; |
1487 | }; | |
d338d6fe | 1488 | # XXX Local variants do not work! |
6027b9a3 | 1489 | $cmd =~ s/^t\s/\$DB::trace |= 1;\n/; |
d338d6fe | 1490 | $cmd =~ s/^s\s/\$DB::single = 1;\n/ && do {$laststep = 's'}; |
1491 | $cmd =~ s/^n\s/\$DB::single = 2;\n/ && do {$laststep = 'n'}; | |
1492 | } # PIPE: | |
d338d6fe | 1493 | $evalarg = "\$^D = \$^D | \$DB::db_stop;\n$cmd"; &eval; |
1494 | if ($onetimeDump) { | |
1495 | $onetimeDump = undef; | |
f36776d9 | 1496 | } elsif ($term_pid == $$) { |
d338d6fe | 1497 | print $OUT "\n"; |
1498 | } | |
1499 | } continue { # CMD: | |
1500 | if ($piped) { | |
1501 | if ($pager =~ /^\|/) { | |
055fd3a9 GS |
1502 | $? = 0; |
1503 | # we cannot warn here: the handle is missing --tchrist | |
1504 | close(OUT) || print SAVEOUT "\nCan't close DB::OUT\n"; | |
1505 | ||
1506 | # most of the $? crud was coping with broken cshisms | |
1507 | if ($?) { | |
1508 | print SAVEOUT "Pager `$pager' failed: "; | |
1509 | if ($? == -1) { | |
1510 | print SAVEOUT "shell returned -1\n"; | |
1511 | } elsif ($? >> 8) { | |
1512 | print SAVEOUT | |
1513 | ( $? & 127 ) ? " (SIG#".($?&127).")" : "", | |
1514 | ( $? & 128 ) ? " -- core dumped" : "", "\n"; | |
1515 | } else { | |
1516 | print SAVEOUT "status ", ($? >> 8), "\n"; | |
1517 | } | |
1518 | } | |
1519 | ||
d338d6fe | 1520 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); |
1521 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); | |
055fd3a9 | 1522 | $SIG{PIPE} = "DEFAULT" if $SIG{PIPE} eq \&DB::catch; |
d338d6fe | 1523 | # Will stop ignoring SIGPIPE if done like nohup(1) |
1524 | # does SIGINT but Perl doesn't give us a choice. | |
1525 | } else { | |
1526 | open(OUT,">&SAVEOUT") || &warn("Can't restore DB::OUT"); | |
1527 | } | |
1528 | close(SAVEOUT); | |
1529 | select($selected), $selected= "" unless $selected eq ""; | |
1530 | $piped= ""; | |
1531 | } | |
1532 | } # CMD: | |
20928eff | 1533 | $fall_off_end = 1 unless defined $cmd; # Emulate `q' on EOF |
e63173ce IZ |
1534 | foreach $evalarg (@$post) { |
1535 | &eval; | |
1536 | } | |
d338d6fe | 1537 | } # if ($single || $signal) |
22fae026 | 1538 | ($@, $!, $^E, $,, $/, $\, $^W) = @saved; |
d338d6fe | 1539 | (); |
1540 | } | |
1541 | ||
1542 | # The following code may be executed now: | |
1543 | # BEGIN {warn 4} | |
1544 | ||
1545 | sub sub { | |
ee971a18 | 1546 | my ($al, $ret, @ret) = ""; |
7d4a81e5 IZ |
1547 | if (length($sub) > 10 && substr($sub, -10, 10) eq '::AUTOLOAD') { |
1548 | $al = " for $$sub"; | |
ee971a18 | 1549 | } |
f8b5b99c IZ |
1550 | local $stack_depth = $stack_depth + 1; # Protect from non-local exits |
1551 | $#stack = $stack_depth; | |
1552 | $stack[-1] = $single; | |
d338d6fe | 1553 | $single &= 1; |
f8b5b99c | 1554 | $single |= 4 if $stack_depth == $deep; |
04fb8f4b | 1555 | ($frame & 4 |
f1583d8f | 1556 | ? ( print_lineinfo(' ' x ($stack_depth - 1), "in "), |
04fb8f4b IZ |
1557 | # Why -1? But it works! :-( |
1558 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) | |
f1583d8f | 1559 | : print_lineinfo(' ' x ($stack_depth - 1), "entering $sub$al\n")) if $frame; |
d338d6fe | 1560 | if (wantarray) { |
1561 | @ret = &$sub; | |
f8b5b99c | 1562 | $single |= $stack[$stack_depth--]; |
36477c24 | 1563 | ($frame & 4 |
f1583d8f | 1564 | ? ( print_lineinfo(' ' x $stack_depth, "out "), |
36477c24 | 1565 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f1583d8f | 1566 | : print_lineinfo(' ' x $stack_depth, "exited $sub$al\n")) if $frame & 2; |
f8b5b99c IZ |
1567 | if ($doret eq $stack_depth or $frame & 16) { |
1568 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); | |
1569 | print $fh ' ' x $stack_depth if $frame & 16; | |
7ea36084 IZ |
1570 | print $fh "list context return from $sub:\n"; |
1571 | dumpit($fh, \@ret ); | |
1572 | $doret = -2; | |
1573 | } | |
d338d6fe | 1574 | @ret; |
1575 | } else { | |
fb73857a | 1576 | if (defined wantarray) { |
1577 | $ret = &$sub; | |
1578 | } else { | |
1579 | &$sub; undef $ret; | |
1580 | }; | |
f8b5b99c | 1581 | $single |= $stack[$stack_depth--]; |
36477c24 | 1582 | ($frame & 4 |
f1583d8f | 1583 | ? ( print_lineinfo(' ' x $stack_depth, "out "), |
36477c24 | 1584 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f1583d8f | 1585 | : print_lineinfo(' ' x $stack_depth, "exited $sub$al\n")) if $frame & 2; |
f8b5b99c IZ |
1586 | if ($doret eq $stack_depth or $frame & 16 and defined wantarray) { |
1587 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); | |
1588 | print $fh (' ' x $stack_depth) if $frame & 16; | |
7ea36084 IZ |
1589 | print $fh (defined wantarray |
1590 | ? "scalar context return from $sub: " | |
1591 | : "void context return from $sub\n"); | |
1592 | dumpit( $fh, $ret ) if defined wantarray; | |
1593 | $doret = -2; | |
1594 | } | |
d338d6fe | 1595 | $ret; |
1596 | } | |
1597 | } | |
1598 | ||
f1583d8f IZ |
1599 | ### The API section |
1600 | ||
1601 | ### Functions with multiple modes of failure die on error, the rest | |
1602 | ### returns FALSE on error. | |
1603 | ### User-interface functions cmd_* output error message. | |
1604 | ||
1605 | sub break_on_load { | |
1606 | my $file = shift; | |
1607 | $break_on_load{$file} = 1; | |
1608 | $had_breakpoints{$file} |= 1; | |
1609 | } | |
1610 | ||
1611 | sub report_break_on_load { | |
1612 | sort keys %break_on_load; | |
1613 | } | |
1614 | ||
1615 | sub cmd_b_load { | |
1616 | my $file = shift; | |
1617 | my @files; | |
1618 | { | |
1619 | push @files, $file; | |
1620 | push @files, $::INC{$file} if $::INC{$file}; | |
1621 | $file .= '.pm', redo unless $file =~ /\./; | |
1622 | } | |
1623 | break_on_load($_) for @files; | |
04e43a21 | 1624 | @files = report_break_on_load; |
f1583d8f IZ |
1625 | print $OUT "Will stop on load of `@files'.\n"; |
1626 | } | |
1627 | ||
1628 | $filename_error = ''; | |
1629 | ||
1630 | sub breakable_line { | |
1631 | my ($from, $to) = @_; | |
1632 | my $i = $from; | |
1633 | if (@_ >= 2) { | |
1634 | my $delta = $from < $to ? +1 : -1; | |
1635 | my $limit = $delta > 0 ? $#dbline : 1; | |
1636 | $limit = $to if ($limit - $to) * $delta > 0; | |
1637 | $i += $delta while $dbline[$i] == 0 and ($limit - $i) * $delta > 0; | |
1638 | } | |
1639 | return $i unless $dbline[$i] == 0; | |
1640 | my ($pl, $upto) = ('', ''); | |
1641 | ($pl, $upto) = ('s', "..$to") if @_ >=2 and $from != $to; | |
1642 | die "Line$pl $from$upto$filename_error not breakable\n"; | |
1643 | } | |
1644 | ||
1645 | sub breakable_line_in_filename { | |
1646 | my ($f) = shift; | |
1647 | local *dbline = $main::{'_<' . $f}; | |
1648 | local $filename_error = " of `$f'"; | |
1649 | breakable_line(@_); | |
1650 | } | |
1651 | ||
1652 | sub break_on_line { | |
1653 | my ($i, $cond) = @_; | |
1654 | $cond = 1 unless @_ >= 2; | |
1655 | my $inii = $i; | |
1656 | my $after = ''; | |
1657 | my $pl = ''; | |
1658 | die "Line $i$filename_error not breakable.\n" if $dbline[$i] == 0; | |
1659 | $had_breakpoints{$filename} |= 1; | |
22c4a518 DD |
1660 | if ($dbline{$i}) { $dbline{$i} =~ s/^[^\0]*/$cond/; } |
1661 | else { $dbline{$i} = $cond; } | |
f1583d8f IZ |
1662 | } |
1663 | ||
1664 | sub cmd_b_line { | |
1665 | eval { break_on_line(@_); 1 } or print $OUT $@ and return; | |
1666 | } | |
1667 | ||
1668 | sub break_on_filename_line { | |
1669 | my ($f, $i, $cond) = @_; | |
1670 | $cond = 1 unless @_ >= 3; | |
1671 | local *dbline = $main::{'_<' . $f}; | |
1672 | local $filename_error = " of `$f'"; | |
1673 | local $filename = $f; | |
1674 | break_on_line($i, $cond); | |
1675 | } | |
1676 | ||
1677 | sub break_on_filename_line_range { | |
1678 | my ($f, $from, $to, $cond) = @_; | |
1679 | my $i = breakable_line_in_filename($f, $from, $to); | |
1680 | $cond = 1 unless @_ >= 3; | |
1681 | break_on_filename_line($f,$i,$cond); | |
1682 | } | |
1683 | ||
1684 | sub subroutine_filename_lines { | |
1685 | my ($subname,$cond) = @_; | |
1686 | # Filename below can contain ':' | |
1687 | find_sub($subname) =~ /^(.*):(\d+)-(\d+)$/; | |
1688 | } | |
1689 | ||
1690 | sub break_subroutine { | |
1691 | my $subname = shift; | |
1692 | my ($file,$s,$e) = subroutine_filename_lines($subname) or | |
1693 | die "Subroutine $subname not found.\n"; | |
1694 | $cond = 1 unless @_ >= 2; | |
1695 | break_on_filename_line_range($file,$s,$e,@_); | |
1696 | } | |
1697 | ||
1698 | sub cmd_b_sub { | |
1699 | my ($subname,$cond) = @_; | |
1700 | $cond = 1 unless @_ >= 2; | |
1701 | unless (ref $subname eq 'CODE') { | |
1702 | $subname =~ s/\'/::/g; | |
1703 | my $s = $subname; | |
1704 | $subname = "${'package'}::" . $subname | |
1705 | unless $subname =~ /::/; | |
1706 | $subname = "CORE::GLOBAL::$s" | |
1707 | if not defined &$subname and $s !~ /::/ and defined &{"CORE::GLOBAL::$s"}; | |
1708 | $subname = "main".$subname if substr($subname,0,2) eq "::"; | |
1709 | } | |
1710 | eval { break_subroutine($subname,$cond); 1 } or print $OUT $@ and return; | |
1711 | } | |
1712 | ||
1713 | sub cmd_stop { # As on ^C, but not signal-safy. | |
1714 | $signal = 1; | |
1715 | } | |
1716 | ||
1717 | sub delete_breakpoint { | |
1718 | my $i = shift; | |
1719 | die "Line $i not breakable.\n" if $dbline[$i] == 0; | |
1720 | $dbline{$i} =~ s/^[^\0]*//; | |
1721 | delete $dbline{$i} if $dbline{$i} eq ''; | |
1722 | } | |
1723 | ||
1724 | sub cmd_d { | |
1725 | my $i = shift; | |
1726 | eval { delete_breakpoint $i; 1 } or print $OUT $@ and return; | |
1727 | } | |
1728 | ||
1729 | ### END of the API section | |
1730 | ||
d338d6fe | 1731 | sub save { |
22fae026 | 1732 | @saved = ($@, $!, $^E, $,, $/, $\, $^W); |
d338d6fe | 1733 | $, = ""; $/ = "\n"; $\ = ""; $^W = 0; |
1734 | } | |
1735 | ||
f1583d8f IZ |
1736 | sub print_lineinfo { |
1737 | resetterm(1) if $LINEINFO eq $OUT and $term_pid != $$; | |
1738 | print $LINEINFO @_; | |
1739 | } | |
1740 | ||
d338d6fe | 1741 | # The following takes its argument via $evalarg to preserve current @_ |
1742 | ||
1743 | sub eval { | |
055fd3a9 | 1744 | # 'my' would make it visible from user code |
f1583d8f IZ |
1745 | # but so does local! --tchrist [... into @DB::res, not @res. IZ] |
1746 | local @res; | |
d338d6fe | 1747 | { |
23a291ec GS |
1748 | local $otrace = $trace; |
1749 | local $osingle = $single; | |
1750 | local $od = $^D; | |
157b066d | 1751 | { ($evalarg) = $evalarg =~ /(.*)/s; } |
d338d6fe | 1752 | @res = eval "$usercontext $evalarg;\n"; # '\n' for nice recursive debug |
1753 | $trace = $otrace; | |
1754 | $single = $osingle; | |
1755 | $^D = $od; | |
1756 | } | |
1757 | my $at = $@; | |
36477c24 | 1758 | local $saved[0]; # Preserve the old value of $@ |
22fae026 | 1759 | eval { &DB::save }; |
62769f13 | 1760 | if ($at) { |
d338d6fe | 1761 | print $OUT $at; |
600d99fa DL |
1762 | } elsif ($onetimeDump) { |
1763 | dumpit($OUT, \@res) if $onetimeDump eq 'dump'; | |
1764 | methods($res[0]) if $onetimeDump eq 'methods'; | |
d338d6fe | 1765 | } |
6027b9a3 | 1766 | @res; |
d338d6fe | 1767 | } |
1768 | ||
55497cff | 1769 | sub postponed_sub { |
1770 | my $subname = shift; | |
1d06cb2d | 1771 | if ($postponed{$subname} =~ s/^break\s([+-]?\d+)\s+if\s//) { |
55497cff | 1772 | my $offset = $1 || 0; |
1773 | # Filename below can contain ':' | |
1d06cb2d | 1774 | my ($file,$i) = (find_sub($subname) =~ /^(.*):(\d+)-.*$/); |
55497cff | 1775 | if ($i) { |
fb73857a | 1776 | $i += $offset; |
8ebc5c01 | 1777 | local *dbline = $main::{'_<' . $file}; |
55497cff | 1778 | local $^W = 0; # != 0 is magical below |
3fbd6552 | 1779 | $had_breakpoints{$file} |= 1; |
55497cff | 1780 | my $max = $#dbline; |
1781 | ++$i until $dbline[$i] != 0 or $i >= $max; | |
1782 | $dbline{$i} = delete $postponed{$subname}; | |
1783 | } else { | |
1784 | print $OUT "Subroutine $subname not found.\n"; | |
1785 | } | |
1786 | return; | |
1787 | } | |
1d06cb2d | 1788 | elsif ($postponed{$subname} eq 'compile') { $signal = 1 } |
36477c24 | 1789 | #print $OUT "In postponed_sub for `$subname'.\n"; |
55497cff | 1790 | } |
1791 | ||
1792 | sub postponed { | |
3aefca04 IZ |
1793 | if ($ImmediateStop) { |
1794 | $ImmediateStop = 0; | |
1795 | $signal = 1; | |
1796 | } | |
55497cff | 1797 | return &postponed_sub |
1798 | unless ref \$_[0] eq 'GLOB'; # A subroutine is compiled. | |
1799 | # Cannot be done before the file is compiled | |
1800 | local *dbline = shift; | |
1801 | my $filename = $dbline; | |
1802 | $filename =~ s/^_<//; | |
36477c24 | 1803 | $signal = 1, print $OUT "'$filename' loaded...\n" |
1804 | if $break_on_load{$filename}; | |
f1583d8f | 1805 | print_lineinfo(' ' x $stack_depth, "Package $filename.\n") if $frame; |
0c395bd7 | 1806 | return unless $postponed_file{$filename}; |
3fbd6552 | 1807 | $had_breakpoints{$filename} |= 1; |
55497cff | 1808 | #%dbline = %{$postponed_file{$filename}}; # Cannot be done: unsufficient magic |
1809 | my $key; | |
1810 | for $key (keys %{$postponed_file{$filename}}) { | |
055fd3a9 | 1811 | $dbline{$key} = ${$postponed_file{$filename}}{$key}; |
54d04a52 | 1812 | } |
0c395bd7 | 1813 | delete $postponed_file{$filename}; |
54d04a52 IZ |
1814 | } |
1815 | ||
d338d6fe | 1816 | sub dumpit { |
7ea36084 | 1817 | local ($savout) = select(shift); |
ee971a18 | 1818 | my $osingle = $single; |
1819 | my $otrace = $trace; | |
1820 | $single = $trace = 0; | |
1821 | local $frame = 0; | |
1822 | local $doret = -2; | |
1823 | unless (defined &main::dumpValue) { | |
1824 | do 'dumpvar.pl'; | |
1825 | } | |
d338d6fe | 1826 | if (defined &main::dumpValue) { |
1827 | &main::dumpValue(shift); | |
1828 | } else { | |
1829 | print $OUT "dumpvar.pl not available.\n"; | |
1830 | } | |
ee971a18 | 1831 | $single = $osingle; |
1832 | $trace = $otrace; | |
d338d6fe | 1833 | select ($savout); |
1834 | } | |
1835 | ||
36477c24 | 1836 | # Tied method do not create a context, so may get wrong message: |
1837 | ||
55497cff | 1838 | sub print_trace { |
1839 | my $fh = shift; | |
f1583d8f | 1840 | resetterm(1) if $fh eq $LINEINFO and $LINEINFO eq $OUT and $term_pid != $$; |
36477c24 | 1841 | my @sub = dump_trace($_[0] + 1, $_[1]); |
1842 | my $short = $_[2]; # Print short report, next one for sub name | |
1d06cb2d | 1843 | my $s; |
55497cff | 1844 | for ($i=0; $i <= $#sub; $i++) { |
1845 | last if $signal; | |
1846 | local $" = ', '; | |
1847 | my $args = defined $sub[$i]{args} | |
1848 | ? "(@{ $sub[$i]{args} })" | |
1849 | : '' ; | |
1d06cb2d IZ |
1850 | $args = (substr $args, 0, $maxtrace - 3) . '...' |
1851 | if length $args > $maxtrace; | |
36477c24 | 1852 | my $file = $sub[$i]{file}; |
1853 | $file = $file eq '-e' ? $file : "file `$file'" unless $short; | |
1d06cb2d IZ |
1854 | $s = $sub[$i]{sub}; |
1855 | $s = (substr $s, 0, $maxtrace - 3) . '...' if length $s > $maxtrace; | |
36477c24 | 1856 | if ($short) { |
1d06cb2d | 1857 | my $sub = @_ >= 4 ? $_[3] : $s; |
36477c24 | 1858 | print $fh "$sub[$i]{context}=$sub$args from $file:$sub[$i]{line}\n"; |
1859 | } else { | |
1d06cb2d | 1860 | print $fh "$sub[$i]{context} = $s$args" . |
36477c24 | 1861 | " called from $file" . |
1862 | " line $sub[$i]{line}\n"; | |
1863 | } | |
55497cff | 1864 | } |
1865 | } | |
1866 | ||
1867 | sub dump_trace { | |
1868 | my $skip = shift; | |
36477c24 | 1869 | my $count = shift || 1e9; |
1870 | $skip++; | |
1871 | $count += $skip; | |
55497cff | 1872 | my ($p,$file,$line,$sub,$h,$args,$e,$r,@a,@sub,$context); |
04fb8f4b IZ |
1873 | my $nothard = not $frame & 8; |
1874 | local $frame = 0; # Do not want to trace this. | |
1875 | my $otrace = $trace; | |
1876 | $trace = 0; | |
55497cff | 1877 | for ($i = $skip; |
36477c24 | 1878 | $i < $count and ($p,$file,$line,$sub,$h,$context,$e,$r) = caller($i); |
55497cff | 1879 | $i++) { |
1880 | @a = (); | |
1881 | for $arg (@args) { | |
04fb8f4b IZ |
1882 | my $type; |
1883 | if (not defined $arg) { | |
1884 | push @a, "undef"; | |
1885 | } elsif ($nothard and tied $arg) { | |
1886 | push @a, "tied"; | |
1887 | } elsif ($nothard and $type = ref $arg) { | |
1888 | push @a, "ref($type)"; | |
1889 | } else { | |
1890 | local $_ = "$arg"; # Safe to stringify now - should not call f(). | |
1891 | s/([\'\\])/\\$1/g; | |
1892 | s/(.*)/'$1'/s | |
1893 | unless /^(?: -?[\d.]+ | \*[\w:]* )$/x; | |
1894 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; | |
1895 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; | |
1896 | push(@a, $_); | |
1897 | } | |
55497cff | 1898 | } |
7ea36084 | 1899 | $context = $context ? '@' : (defined $context ? "\$" : '.'); |
55497cff | 1900 | $args = $h ? [@a] : undef; |
1901 | $e =~ s/\n\s*\;\s*\Z// if $e; | |
1d06cb2d | 1902 | $e =~ s/([\\\'])/\\$1/g if $e; |
55497cff | 1903 | if ($r) { |
1904 | $sub = "require '$e'"; | |
1905 | } elsif (defined $r) { | |
1906 | $sub = "eval '$e'"; | |
1907 | } elsif ($sub eq '(eval)') { | |
1908 | $sub = "eval {...}"; | |
1909 | } | |
1910 | push(@sub, {context => $context, sub => $sub, args => $args, | |
1911 | file => $file, line => $line}); | |
1912 | last if $signal; | |
1913 | } | |
04fb8f4b | 1914 | $trace = $otrace; |
55497cff | 1915 | @sub; |
1916 | } | |
1917 | ||
d338d6fe | 1918 | sub action { |
1919 | my $action = shift; | |
1920 | while ($action =~ s/\\$//) { | |
1921 | #print $OUT "+ "; | |
1922 | #$action .= "\n"; | |
1923 | $action .= &gets; | |
1924 | } | |
1925 | $action; | |
1926 | } | |
1927 | ||
055fd3a9 GS |
1928 | sub unbalanced { |
1929 | # i hate using globals! | |
1930 | $balanced_brace_re ||= qr{ | |
1931 | ^ \{ | |
1932 | (?: | |
1933 | (?> [^{}] + ) # Non-parens without backtracking | |
1934 | | | |
1935 | (??{ $balanced_brace_re }) # Group with matching parens | |
1936 | ) * | |
1937 | \} $ | |
1938 | }x; | |
1939 | return $_[0] !~ m/$balanced_brace_re/; | |
1940 | } | |
1941 | ||
d338d6fe | 1942 | sub gets { |
d338d6fe | 1943 | &readline("cont: "); |
1944 | } | |
1945 | ||
1946 | sub system { | |
1947 | # We save, change, then restore STDIN and STDOUT to avoid fork() since | |
055fd3a9 | 1948 | # some non-Unix systems can do system() but have problems with fork(). |
d338d6fe | 1949 | open(SAVEIN,"<&STDIN") || &warn("Can't save STDIN"); |
8ee058cb | 1950 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); |
d338d6fe | 1951 | open(STDIN,"<&IN") || &warn("Can't redirect STDIN"); |
1952 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); | |
055fd3a9 GS |
1953 | |
1954 | # XXX: using csh or tcsh destroys sigint retvals! | |
d338d6fe | 1955 | system(@_); |
1956 | open(STDIN,"<&SAVEIN") || &warn("Can't restore STDIN"); | |
1957 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); | |
055fd3a9 GS |
1958 | close(SAVEIN); |
1959 | close(SAVEOUT); | |
1960 | ||
1961 | ||
1962 | # most of the $? crud was coping with broken cshisms | |
1963 | if ($? >> 8) { | |
1964 | &warn("(Command exited ", ($? >> 8), ")\n"); | |
1965 | } elsif ($?) { | |
1966 | &warn( "(Command died of SIG#", ($? & 127), | |
1967 | (($? & 128) ? " -- core dumped" : "") , ")", "\n"); | |
1968 | } | |
1969 | ||
1970 | return $?; | |
1971 | ||
d338d6fe | 1972 | } |
1973 | ||
1974 | sub setterm { | |
54d04a52 | 1975 | local $frame = 0; |
ee971a18 | 1976 | local $doret = -2; |
ee971a18 | 1977 | eval { require Term::ReadLine } or die $@; |
d338d6fe | 1978 | if ($notty) { |
1979 | if ($tty) { | |
f1583d8f IZ |
1980 | my ($i, $o) = split $tty, /,/; |
1981 | $o = $i unless defined $o; | |
1982 | open(IN,"<$i") or die "Cannot open TTY `$i' for read: $!"; | |
1983 | open(OUT,">$o") or die "Cannot open TTY `$o' for write: $!"; | |
d338d6fe | 1984 | $IN = \*IN; |
1985 | $OUT = \*OUT; | |
1986 | my $sel = select($OUT); | |
1987 | $| = 1; | |
1988 | select($sel); | |
1989 | } else { | |
3dcd9d33 | 1990 | eval "require Term::Rendezvous;" or die; |
d338d6fe | 1991 | my $rv = $ENV{PERLDB_NOTTY} || "/tmp/perldbtty$$"; |
1992 | my $term_rv = new Term::Rendezvous $rv; | |
1993 | $IN = $term_rv->IN; | |
1994 | $OUT = $term_rv->OUT; | |
1995 | } | |
1996 | } | |
f1583d8f IZ |
1997 | if ($term_pid eq '-1') { # In a TTY with another debugger |
1998 | resetterm(2); | |
1999 | } | |
d338d6fe | 2000 | if (!$rl) { |
2001 | $term = new Term::ReadLine::Stub 'perldb', $IN, $OUT; | |
2002 | } else { | |
2003 | $term = new Term::ReadLine 'perldb', $IN, $OUT; | |
2004 | ||
a737e074 CS |
2005 | $rl_attribs = $term->Attribs; |
2006 | $rl_attribs->{basic_word_break_characters} .= '-:+/*,[])}' | |
2007 | if defined $rl_attribs->{basic_word_break_characters} | |
2008 | and index($rl_attribs->{basic_word_break_characters}, ":") == -1; | |
2009 | $rl_attribs->{special_prefixes} = '$@&%'; | |
2010 | $rl_attribs->{completer_word_break_characters} .= '$@&%'; | |
2011 | $rl_attribs->{completion_function} = \&db_complete; | |
d338d6fe | 2012 | } |
2013 | $LINEINFO = $OUT unless defined $LINEINFO; | |
2014 | $lineinfo = $console unless defined $lineinfo; | |
2015 | $term->MinLine(2); | |
54d04a52 IZ |
2016 | if ($term->Features->{setHistory} and "@hist" ne "?") { |
2017 | $term->SetHistory(@hist); | |
2018 | } | |
7a2e2cd6 | 2019 | ornaments($ornaments) if defined $ornaments; |
f36776d9 IZ |
2020 | $term_pid = $$; |
2021 | } | |
2022 | ||
f1583d8f IZ |
2023 | # Example get_fork_TTY functions |
2024 | sub xterm_get_fork_TTY { | |
2025 | (my $name = $0) =~ s,^.*[/\\],,s; | |
2026 | open XT, qq[3>&1 xterm -title "Daughter Perl debugger $pids $name" -e sh -c 'tty 1>&3;\ | |
f36776d9 | 2027 | sleep 10000000' |]; |
f1583d8f IZ |
2028 | my $tty = <XT>; |
2029 | chomp $tty; | |
2030 | $pidprompt = ''; # Shown anyway in titlebar | |
2031 | return $tty; | |
2032 | } | |
2033 | ||
2034 | # This one resets $IN, $OUT itself | |
2035 | sub os2_get_fork_TTY { | |
2036 | $^F = 40; # XXXX Fixme! | |
2037 | my ($in1, $out1, $in2, $out2); | |
2038 | # Having -d in PERL5OPT would lead to a disaster... | |
2039 | local $ENV{PERL5OPT} = $ENV{PERL5OPT} if $ENV{PERL5OPT}; | |
2040 | $ENV{PERL5OPT} =~ s/(?:^|(?<=\s))-d\b// if $ENV{PERL5OPT}; | |
2041 | $ENV{PERL5OPT} =~ s/(?:^|(?<=\s))-d\B/-/ if $ENV{PERL5OPT}; | |
2042 | print $OUT "Making PERL5OPT->`$ENV{PERL5OPT}'.\n" if $ENV{PERL5OPT}; | |
2043 | (my $name = $0) =~ s,^.*[/\\],,s; | |
2044 | if ( pipe $in1, $out1 and pipe $in2, $out2 and | |
2045 | # system P_SESSION will fail if there is another process | |
04e43a21 DL |
2046 | # in the same session with a "dependent" asynchronous child session. |
2047 | (($kpid = CORE::system 4, $^X, '-we', <<'ES', fileno $in1, fileno $out2, "Daughter Perl debugger $pids $name") >= 0 or warn "system P_SESSION: $!, $^E" and 0) # P_SESSION | |
f1583d8f IZ |
2048 | use Term::ReadKey; |
2049 | use OS2::Process; | |
2050 | ||
2051 | my $in = shift; # Read from here and pass through | |
2052 | set_title pop; | |
2053 | system P_NOWAIT, $^X, '-we', <<EOS or die "Cannot start a grandkid"; | |
2054 | open IN, '<&=$in' or die "open <&=$in: \$!"; | |
2055 | \$| = 1; print while sysread IN, \$_, 1<<16; | |
2056 | EOS | |
2057 | ||
2058 | my $out = shift; | |
2059 | open OUT, ">&=$out" or die "Cannot open &=$out for writing: $!"; | |
2060 | select OUT; $| = 1; | |
2061 | ReadMode 4; # Nodelay on kbd. Pipe is automatically nodelay... | |
2062 | print while sysread STDIN, $_, 1<<16; | |
2063 | ES | |
2064 | and close $in1 and close $out2 ) { | |
2065 | $pidprompt = ''; # Shown anyway in titlebar | |
2066 | reset_IN_OUT($in2, $out1); | |
2067 | $tty = '*reset*'; | |
2068 | return ''; # Indicate that reset_IN_OUT is called | |
2069 | } | |
2070 | return; | |
2071 | } | |
2072 | ||
2073 | sub create_IN_OUT { # Create a window with IN/OUT handles redirected there | |
2074 | my $in = &get_fork_TTY if defined &get_fork_TTY; | |
2075 | $in = $fork_TTY if defined $fork_TTY; # Backward compatibility | |
2076 | if (not defined $in) { | |
2077 | my $why = shift; | |
2078 | print_help(<<EOP) if $why == 1; | |
2079 | I<#########> Forked, but do not know how to create a new B<TTY>. I<#########> | |
2080 | EOP | |
2081 | print_help(<<EOP) if $why == 2; | |
2082 | I<#########> Daughter session, do not know how to change a B<TTY>. I<#########> | |
04e43a21 | 2083 | This may be an asynchronous session, so the parent debugger may be active. |
f1583d8f IZ |
2084 | EOP |
2085 | print_help(<<EOP) if $why != 4; | |
2086 | Since two debuggers fight for the same TTY, input is severely entangled. | |
2087 | ||
2088 | EOP | |
405ff068 | 2089 | print_help(<<EOP); |
f1583d8f IZ |
2090 | I know how to switch the output to a different window in xterms |
2091 | and OS/2 consoles only. For a manual switch, put the name of the created I<TTY> | |
2092 | in B<\$DB::fork_TTY>, or define a function B<DB::get_fork_TTY()> returning this. | |
2093 | ||
405ff068 IZ |
2094 | On I<UNIX>-like systems one can get the name of a I<TTY> for the given window |
2095 | by typing B<tty>, and disconnect the I<shell> from I<TTY> by B<sleep 1000000>. | |
f1583d8f | 2096 | |
405ff068 | 2097 | EOP |
f1583d8f IZ |
2098 | } elsif ($in ne '') { |
2099 | TTY($in); | |
f36776d9 | 2100 | } |
f1583d8f IZ |
2101 | undef $fork_TTY; |
2102 | } | |
2103 | ||
2104 | sub resetterm { # We forked, so we need a different TTY | |
2105 | my $in = shift; | |
2106 | my $systemed = $in > 1 ? '-' : ''; | |
2107 | if ($pids) { | |
2108 | $pids =~ s/\]/$systemed->$$]/; | |
2109 | } else { | |
2110 | $pids = "[$term_pid->$$]"; | |
2111 | } | |
2112 | $pidprompt = $pids; | |
2113 | $term_pid = $$; | |
2114 | return unless $CreateTTY & $in; | |
2115 | create_IN_OUT($in); | |
d338d6fe | 2116 | } |
2117 | ||
2118 | sub readline { | |
0c01eb4a | 2119 | local $.; |
54d04a52 IZ |
2120 | if (@typeahead) { |
2121 | my $left = @typeahead; | |
2122 | my $got = shift @typeahead; | |
2123 | print $OUT "auto(-$left)", shift, $got, "\n"; | |
2124 | $term->AddHistory($got) | |
2125 | if length($got) > 1 and defined $term->Features->{addHistory}; | |
2126 | return $got; | |
2127 | } | |
d338d6fe | 2128 | local $frame = 0; |
ee971a18 | 2129 | local $doret = -2; |
5bad0d9e PS |
2130 | while (@cmdfhs) { |
2131 | my $line = CORE::readline($cmdfhs[-1]); | |
2132 | defined $line ? (print $OUT ">> $line" and return $line) | |
2133 | : close pop @cmdfhs; | |
2134 | } | |
363b4d59 | 2135 | if (ref $OUT and UNIVERSAL::isa($OUT, 'IO::Socket::INET')) { |
e4e99f0d | 2136 | $OUT->write(join('', @_)); |
363b4d59 | 2137 | my $stuff; |
055fd3a9 | 2138 | $IN->recv( $stuff, 2048 ); # XXX: what's wrong with sysread? |
363b4d59 GT |
2139 | $stuff; |
2140 | } | |
2141 | else { | |
2142 | $term->readline(@_); | |
2143 | } | |
d338d6fe | 2144 | } |
2145 | ||
2146 | sub dump_option { | |
2147 | my ($opt, $val)= @_; | |
55497cff | 2148 | $val = option_val($opt,'N/A'); |
2149 | $val =~ s/([\\\'])/\\$1/g; | |
2150 | printf $OUT "%20s = '%s'\n", $opt, $val; | |
2151 | } | |
2152 | ||
2153 | sub option_val { | |
2154 | my ($opt, $default)= @_; | |
2155 | my $val; | |
d338d6fe | 2156 | if (defined $optionVars{$opt} |
055fd3a9 GS |
2157 | and defined ${$optionVars{$opt}}) { |
2158 | $val = ${$optionVars{$opt}}; | |
d338d6fe | 2159 | } elsif (defined $optionAction{$opt} |
2160 | and defined &{$optionAction{$opt}}) { | |
2161 | $val = &{$optionAction{$opt}}(); | |
2162 | } elsif (defined $optionAction{$opt} | |
2163 | and not defined $option{$opt} | |
2164 | or defined $optionVars{$opt} | |
055fd3a9 | 2165 | and not defined ${$optionVars{$opt}}) { |
55497cff | 2166 | $val = $default; |
d338d6fe | 2167 | } else { |
2168 | $val = $option{$opt}; | |
2169 | } | |
600d99fa | 2170 | $val = $default unless defined $val; |
55497cff | 2171 | $val |
d338d6fe | 2172 | } |
2173 | ||
2174 | sub parse_options { | |
2175 | local($_)= @_; | |
055fd3a9 GS |
2176 | # too dangerous to let intuitive usage overwrite important things |
2177 | # defaultion should never be the default | |
2178 | my %opt_needs_val = map { ( $_ => 1 ) } qw{ | |
6f891d7d | 2179 | arrayDepth hashDepth LineInfo maxTraceLen ornaments windowSize |
055fd3a9 GS |
2180 | pager quote ReadLine recallCommand RemotePort ShellBang TTY |
2181 | }; | |
2182 | while (length) { | |
2183 | my $val_defaulted; | |
2184 | s/^\s+// && next; | |
2185 | s/^(\w+)(\W?)// or print($OUT "Invalid option `$_'\n"), last; | |
d338d6fe | 2186 | my ($opt,$sep) = ($1,$2); |
2187 | my $val; | |
2188 | if ("?" eq $sep) { | |
2189 | print($OUT "Option query `$opt?' followed by non-space `$_'\n"), last | |
2190 | if /^\S/; | |
2191 | #&dump_option($opt); | |
2192 | } elsif ($sep !~ /\S/) { | |
055fd3a9 GS |
2193 | $val_defaulted = 1; |
2194 | $val = "1"; # this is an evil default; make 'em set it! | |
d338d6fe | 2195 | } elsif ($sep eq "=") { |
055fd3a9 GS |
2196 | |
2197 | if (s/ (["']) ( (?: \\. | (?! \1 ) [^\\] )* ) \1 //x) { | |
2198 | my $quote = $1; | |
2199 | ($val = $2) =~ s/\\([$quote\\])/$1/g; | |
2200 | } else { | |
2201 | s/^(\S*)//; | |
d338d6fe | 2202 | $val = $1; |
055fd3a9 GS |
2203 | print OUT qq(Option better cleared using $opt=""\n) |
2204 | unless length $val; | |
2205 | } | |
2206 | ||
d338d6fe | 2207 | } else { #{ to "let some poor schmuck bounce on the % key in B<vi>." |
2208 | my ($end) = "\\" . substr( ")]>}$sep", index("([<{",$sep), 1 ); #} | |
2209 | s/^(([^\\$end]|\\[\\$end])*)$end($|\s+)// or | |
2210 | print($OUT "Unclosed option value `$opt$sep$_'\n"), last; | |
055fd3a9 | 2211 | ($val = $1) =~ s/\\([\\$end])/$1/g; |
d338d6fe | 2212 | } |
055fd3a9 GS |
2213 | |
2214 | my $option; | |
2215 | my $matches = grep( /^\Q$opt/ && ($option = $_), @options ) | |
2216 | || grep( /^\Q$opt/i && ($option = $_), @options ); | |
2217 | ||
2218 | print($OUT "Unknown option `$opt'\n"), next unless $matches; | |
2219 | print($OUT "Ambiguous option `$opt'\n"), next if $matches > 1; | |
2220 | ||
2221 | if ($opt_needs_val{$option} && $val_defaulted) { | |
2222 | print $OUT "Option `$opt' is non-boolean. Use `O $option=VAL' to set, `O $option?' to query\n"; | |
2223 | next; | |
2224 | } | |
2225 | ||
2226 | $option{$option} = $val if defined $val; | |
2227 | ||
2228 | eval qq{ | |
2229 | local \$frame = 0; | |
2230 | local \$doret = -2; | |
2231 | require '$optionRequire{$option}'; | |
2232 | 1; | |
2233 | } || die # XXX: shouldn't happen | |
2234 | if defined $optionRequire{$option} && | |
2235 | defined $val; | |
2236 | ||
2237 | ${$optionVars{$option}} = $val | |
2238 | if defined $optionVars{$option} && | |
2239 | defined $val; | |
2240 | ||
2241 | &{$optionAction{$option}} ($val) | |
2242 | if defined $optionAction{$option} && | |
2243 | defined &{$optionAction{$option}} && | |
2244 | defined $val; | |
2245 | ||
2246 | # Not $rcfile | |
2247 | dump_option($option) unless $OUT eq \*STDERR; | |
d338d6fe | 2248 | } |
2249 | } | |
2250 | ||
54d04a52 IZ |
2251 | sub set_list { |
2252 | my ($stem,@list) = @_; | |
2253 | my $val; | |
055fd3a9 | 2254 | $ENV{"${stem}_n"} = @list; |
54d04a52 IZ |
2255 | for $i (0 .. $#list) { |
2256 | $val = $list[$i]; | |
2257 | $val =~ s/\\/\\\\/g; | |
ee971a18 | 2258 | $val =~ s/([\0-\37\177\200-\377])/"\\0x" . unpack('H2',$1)/eg; |
055fd3a9 | 2259 | $ENV{"${stem}_$i"} = $val; |
54d04a52 IZ |
2260 | } |
2261 | } | |
2262 | ||
2263 | sub get_list { | |
2264 | my $stem = shift; | |
2265 | my @list; | |
055fd3a9 | 2266 | my $n = delete $ENV{"${stem}_n"}; |
54d04a52 IZ |
2267 | my $val; |
2268 | for $i (0 .. $n - 1) { | |
055fd3a9 | 2269 | $val = delete $ENV{"${stem}_$i"}; |
54d04a52 IZ |
2270 | $val =~ s/\\((\\)|0x(..))/ $2 ? $2 : pack('H2', $3) /ge; |
2271 | push @list, $val; | |
2272 | } | |
2273 | @list; | |
2274 | } | |
2275 | ||
d338d6fe | 2276 | sub catch { |
2277 | $signal = 1; | |
4639966b | 2278 | return; # Put nothing on the stack - malloc/free land! |
d338d6fe | 2279 | } |
2280 | ||
2281 | sub warn { | |
2282 | my($msg)= join("",@_); | |
2283 | $msg .= ": $!\n" unless $msg =~ /\n$/; | |
2284 | print $OUT $msg; | |
2285 | } | |
2286 | ||
f1583d8f IZ |
2287 | sub reset_IN_OUT { |
2288 | my $switch_li = $LINEINFO eq $OUT; | |
2289 | if ($term and $term->Features->{newTTY}) { | |
2290 | ($IN, $OUT) = (shift, shift); | |
2291 | $term->newTTY($IN, $OUT); | |
2292 | } elsif ($term) { | |
2293 | &warn("Too late to set IN/OUT filehandles, enabled on next `R'!\n"); | |
2294 | } else { | |
2295 | ($IN, $OUT) = (shift, shift); | |
2296 | } | |
2297 | my $o = select $OUT; | |
2298 | $| = 1; | |
2299 | select $o; | |
2300 | $LINEINFO = $OUT if $switch_li; | |
2301 | } | |
2302 | ||
d338d6fe | 2303 | sub TTY { |
f36776d9 IZ |
2304 | if (@_ and $term and $term->Features->{newTTY}) { |
2305 | my ($in, $out) = shift; | |
2306 | if ($in =~ /,/) { | |
2307 | ($in, $out) = split /,/, $in, 2; | |
2308 | } else { | |
2309 | $out = $in; | |
2310 | } | |
2311 | open IN, $in or die "cannot open `$in' for read: $!"; | |
2312 | open OUT, ">$out" or die "cannot open `$out' for write: $!"; | |
f1583d8f | 2313 | reset_IN_OUT(\*IN,\*OUT); |
f36776d9 | 2314 | return $tty = $in; |
f1583d8f IZ |
2315 | } |
2316 | &warn("Too late to set TTY, enabled on next `R'!\n") if $term and @_; | |
2317 | # Useful if done through PERLDB_OPTS: | |
43aed9ee | 2318 | $tty = shift if @_; |
d338d6fe | 2319 | $tty or $console; |
2320 | } | |
2321 | ||
2322 | sub noTTY { | |
2323 | if ($term) { | |
43aed9ee | 2324 | &warn("Too late to set noTTY, enabled on next `R'!\n") if @_; |
d338d6fe | 2325 | } |
43aed9ee | 2326 | $notty = shift if @_; |
d338d6fe | 2327 | $notty; |
2328 | } | |
2329 | ||
2330 | sub ReadLine { | |
2331 | if ($term) { | |
43aed9ee | 2332 | &warn("Too late to set ReadLine, enabled on next `R'!\n") if @_; |
d338d6fe | 2333 | } |
43aed9ee | 2334 | $rl = shift if @_; |
d338d6fe | 2335 | $rl; |
2336 | } | |
2337 | ||
363b4d59 GT |
2338 | sub RemotePort { |
2339 | if ($term) { | |
2340 | &warn("Too late to set RemotePort, enabled on next 'R'!\n") if @_; | |
2341 | } | |
2342 | $remoteport = shift if @_; | |
2343 | $remoteport; | |
2344 | } | |
2345 | ||
a737e074 | 2346 | sub tkRunning { |
055fd3a9 | 2347 | if (${$term->Features}{tkRunning}) { |
a737e074 CS |
2348 | return $term->tkRunning(@_); |
2349 | } else { | |
2350 | print $OUT "tkRunning not supported by current ReadLine package.\n"; | |
2351 | 0; | |
2352 | } | |
2353 | } | |
2354 | ||
d338d6fe | 2355 | sub NonStop { |
2356 | if ($term) { | |
43aed9ee | 2357 | &warn("Too late to set up NonStop mode, enabled on next `R'!\n") if @_; |
d338d6fe | 2358 | } |
43aed9ee | 2359 | $runnonstop = shift if @_; |
d338d6fe | 2360 | $runnonstop; |
2361 | } | |
2362 | ||
2363 | sub pager { | |
2364 | if (@_) { | |
2365 | $pager = shift; | |
2366 | $pager="|".$pager unless $pager =~ /^(\+?\>|\|)/; | |
2367 | } | |
2368 | $pager; | |
2369 | } | |
2370 | ||
2371 | sub shellBang { | |
2372 | if (@_) { | |
2373 | $sh = quotemeta shift; | |
2374 | $sh .= "\\b" if $sh =~ /\w$/; | |
2375 | } | |
2376 | $psh = $sh; | |
2377 | $psh =~ s/\\b$//; | |
2378 | $psh =~ s/\\(.)/$1/g; | |
d338d6fe | 2379 | $psh; |
2380 | } | |
2381 | ||
7a2e2cd6 | 2382 | sub ornaments { |
2383 | if (defined $term) { | |
2384 | local ($warnLevel,$dieLevel) = (0, 1); | |
2385 | return '' unless $term->Features->{ornaments}; | |
2386 | eval { $term->ornaments(@_) } || ''; | |
2387 | } else { | |
2388 | $ornaments = shift; | |
2389 | } | |
2390 | } | |
2391 | ||
d338d6fe | 2392 | sub recallCommand { |
2393 | if (@_) { | |
2394 | $rc = quotemeta shift; | |
2395 | $rc .= "\\b" if $rc =~ /\w$/; | |
2396 | } | |
2397 | $prc = $rc; | |
2398 | $prc =~ s/\\b$//; | |
2399 | $prc =~ s/\\(.)/$1/g; | |
d338d6fe | 2400 | $prc; |
2401 | } | |
2402 | ||
2403 | sub LineInfo { | |
2404 | return $lineinfo unless @_; | |
2405 | $lineinfo = shift; | |
2406 | my $stream = ($lineinfo =~ /^(\+?\>|\|)/) ? $lineinfo : ">$lineinfo"; | |
055fd3a9 | 2407 | $slave_editor = ($stream =~ /^\|/); |
d338d6fe | 2408 | open(LINEINFO, "$stream") || &warn("Cannot open `$stream' for write"); |
2409 | $LINEINFO = \*LINEINFO; | |
2410 | my $save = select($LINEINFO); | |
2411 | $| = 1; | |
2412 | select($save); | |
2413 | $lineinfo; | |
2414 | } | |
2415 | ||
ee971a18 | 2416 | sub list_versions { |
2417 | my %version; | |
2418 | my $file; | |
2419 | for (keys %INC) { | |
2420 | $file = $_; | |
2421 | s,\.p[lm]$,,i ; | |
2422 | s,/,::,g ; | |
2423 | s/^perl5db$/DB/; | |
55497cff | 2424 | s/^Term::ReadLine::readline$/readline/; |
055fd3a9 GS |
2425 | if (defined ${ $_ . '::VERSION' }) { |
2426 | $version{$file} = "${ $_ . '::VERSION' } from "; | |
ee971a18 | 2427 | } |
2428 | $version{$file} .= $INC{$file}; | |
2429 | } | |
2c53b6d0 | 2430 | dumpit($OUT,\%version); |
ee971a18 | 2431 | } |
2432 | ||
d338d6fe | 2433 | sub sethelp { |
04e43a21 | 2434 | # XXX: make sure there are tabs between the command and explanation, |
055fd3a9 GS |
2435 | # or print_help will screw up your formatting if you have |
2436 | # eeevil ornaments enabled. This is an insane mess. | |
2437 | ||
d338d6fe | 2438 | $help = " |
6027b9a3 IZ |
2439 | B<T> Stack trace. |
2440 | B<s> [I<expr>] Single step [in I<expr>]. | |
2441 | B<n> [I<expr>] Next, steps over subroutine calls [in I<expr>]. | |
2442 | <B<CR>> Repeat last B<n> or B<s> command. | |
2443 | B<r> Return from current subroutine. | |
2444 | B<c> [I<line>|I<sub>] Continue; optionally inserts a one-time-only breakpoint | |
55497cff | 2445 | at the specified position. |
6027b9a3 IZ |
2446 | B<l> I<min>B<+>I<incr> List I<incr>+1 lines starting at I<min>. |
2447 | B<l> I<min>B<->I<max> List lines I<min> through I<max>. | |
2448 | B<l> I<line> List single I<line>. | |
2449 | B<l> I<subname> List first window of lines from subroutine. | |
3fbd6552 | 2450 | B<l> I<\$var> List first window of lines from subroutine referenced by I<\$var>. |
6027b9a3 IZ |
2451 | B<l> List next window of lines. |
2452 | B<-> List previous window of lines. | |
2453 | B<w> [I<line>] List window around I<line>. | |
2454 | B<.> Return to the executed line. | |
bee32ff8 GS |
2455 | B<f> I<filename> Switch to viewing I<filename>. File must be already loaded. |
2456 | I<filename> may be either the full name of the file, or a regular | |
2457 | expression matching the full file name: | |
2458 | B<f> I</home/me/foo.pl> and B<f> I<oo\\.> may access the same file. | |
2459 | Evals (with saved bodies) are considered to be filenames: | |
2460 | B<f> I<(eval 7)> and B<f> I<eval 7\\b> access the body of the 7th eval | |
2461 | (in the order of execution). | |
6027b9a3 IZ |
2462 | B</>I<pattern>B</> Search forwards for I<pattern>; final B</> is optional. |
2463 | B<?>I<pattern>B<?> Search backwards for I<pattern>; final B<?> is optional. | |
2464 | B<L> List all breakpoints and actions. | |
2465 | B<S> [[B<!>]I<pattern>] List subroutine names [not] matching I<pattern>. | |
2466 | B<t> Toggle trace mode. | |
2467 | B<t> I<expr> Trace through execution of I<expr>. | |
2468 | B<b> [I<line>] [I<condition>] | |
2469 | Set breakpoint; I<line> defaults to the current execution line; | |
2470 | I<condition> breaks if it evaluates to true, defaults to '1'. | |
2471 | B<b> I<subname> [I<condition>] | |
d338d6fe | 2472 | Set breakpoint at first line of subroutine. |
3fbd6552 | 2473 | B<b> I<\$var> Set breakpoint at first line of subroutine referenced by I<\$var>. |
6027b9a3 IZ |
2474 | B<b> B<load> I<filename> Set breakpoint on `require'ing the given file. |
2475 | B<b> B<postpone> I<subname> [I<condition>] | |
55497cff | 2476 | Set breakpoint at first line of subroutine after |
2477 | it is compiled. | |
6027b9a3 | 2478 | B<b> B<compile> I<subname> |
1d06cb2d | 2479 | Stop after the subroutine is compiled. |
6027b9a3 IZ |
2480 | B<d> [I<line>] Delete the breakpoint for I<line>. |
2481 | B<D> Delete all breakpoints. | |
2482 | B<a> [I<line>] I<command> | |
3fbd6552 GS |
2483 | Set an action to be done before the I<line> is executed; |
2484 | I<line> defaults to the current execution line. | |
6027b9a3 IZ |
2485 | Sequence is: check for breakpoint/watchpoint, print line |
2486 | if necessary, do action, prompt user if necessary, | |
3fbd6552 GS |
2487 | execute line. |
2488 | B<a> [I<line>] Delete the action for I<line>. | |
6027b9a3 IZ |
2489 | B<A> Delete all actions. |
2490 | B<W> I<expr> Add a global watch-expression. | |
2491 | B<W> Delete all watch-expressions. | |
2492 | B<V> [I<pkg> [I<vars>]] List some (default all) variables in package (default current). | |
2493 | Use B<~>I<pattern> and B<!>I<pattern> for positive and negative regexps. | |
2494 | B<X> [I<vars>] Same as \"B<V> I<currentpackage> [I<vars>]\". | |
91e74348 JH |
2495 | B<x> I<expr> Evals expression in list context, dumps the result. |
2496 | B<m> I<expr> Evals expression in list context, prints methods callable | |
1d06cb2d | 2497 | on the first element of the result. |
6027b9a3 | 2498 | B<m> I<class> Prints methods callable via the given class. |
055fd3a9 GS |
2499 | |
2500 | B<<> ? List Perl commands to run before each prompt. | |
6027b9a3 IZ |
2501 | B<<> I<expr> Define Perl command to run before each prompt. |
2502 | B<<<> I<expr> Add to the list of Perl commands to run before each prompt. | |
055fd3a9 | 2503 | B<>> ? List Perl commands to run after each prompt. |
6027b9a3 | 2504 | B<>> I<expr> Define Perl command to run after each prompt. |
3fbd6552 | 2505 | B<>>B<>> I<expr> Add to the list of Perl commands to run after each prompt. |
6027b9a3 | 2506 | B<{> I<db_command> Define debugger command to run before each prompt. |
055fd3a9 | 2507 | B<{> ? List debugger commands to run before each prompt. |
6027b9a3 IZ |
2508 | B<{{> I<db_command> Add to the list of debugger commands to run before each prompt. |
2509 | B<$prc> I<number> Redo a previous command (default previous command). | |
2510 | B<$prc> I<-number> Redo number'th-to-last command. | |
2511 | B<$prc> I<pattern> Redo last command that started with I<pattern>. | |
2512 | See 'B<O> I<recallCommand>' too. | |
2513 | B<$psh$psh> I<cmd> Run cmd in a subprocess (reads from DB::IN, writes to DB::OUT)" | |
d338d6fe | 2514 | . ( $rc eq $sh ? "" : " |
6027b9a3 IZ |
2515 | B<$psh> [I<cmd>] Run I<cmd> in subshell (forces \"\$SHELL -c 'cmd'\")." ) . " |
2516 | See 'B<O> I<shellBang>' too. | |
5bad0d9e | 2517 | B<@>I<file> Execute I<file> containing debugger commands (may nest). |
6027b9a3 IZ |
2518 | B<H> I<-number> Display last number commands (default all). |
2519 | B<p> I<expr> Same as \"I<print {DB::OUT} expr>\" in current package. | |
2520 | B<|>I<dbcmd> Run debugger command, piping DB::OUT to current pager. | |
2521 | B<||>I<dbcmd> Same as B<|>I<dbcmd> but DB::OUT is temporarilly select()ed as well. | |
2522 | B<\=> [I<alias> I<value>] Define a command alias, or list current aliases. | |
2523 | I<command> Execute as a perl statement in current package. | |
2524 | B<v> Show versions of loaded modules. | |
2525 | B<R> Pure-man-restart of debugger, some of debugger state | |
55497cff | 2526 | and command-line options may be lost. |
04e43a21 | 2527 | Currently the following settings are preserved: |
6027b9a3 IZ |
2528 | history, breakpoints and actions, debugger B<O>ptions |
2529 | and the following command-line options: I<-w>, I<-I>, I<-e>. | |
055fd3a9 GS |
2530 | |
2531 | B<O> [I<opt>] ... Set boolean option to true | |
2532 | B<O> [I<opt>B<?>] Query options | |
2533 | B<O> [I<opt>B<=>I<val>] [I<opt>=B<\">I<val>B<\">] ... | |
2534 | Set options. Use quotes in spaces in value. | |
2535 | I<recallCommand>, I<ShellBang> chars used to recall command or spawn shell; | |
2536 | I<pager> program for output of \"|cmd\"; | |
2537 | I<tkRunning> run Tk while prompting (with ReadLine); | |
2538 | I<signalLevel> I<warnLevel> I<dieLevel> level of verbosity; | |
2539 | I<inhibit_exit> Allows stepping off the end of the script. | |
2540 | I<ImmediateStop> Debugger should stop as early as possible. | |
2541 | I<RemotePort> Remote hostname:port for remote debugging | |
2542 | The following options affect what happens with B<V>, B<X>, and B<x> commands: | |
2543 | I<arrayDepth>, I<hashDepth> print only first N elements ('' for all); | |
2544 | I<compactDump>, I<veryCompact> change style of array and hash dump; | |
2545 | I<globPrint> whether to print contents of globs; | |
2546 | I<DumpDBFiles> dump arrays holding debugged files; | |
2547 | I<DumpPackages> dump symbol tables of packages; | |
2548 | I<DumpReused> dump contents of \"reused\" addresses; | |
2549 | I<quote>, I<HighBit>, I<undefPrint> change style of string dump; | |
2550 | I<bareStringify> Do not print the overload-stringified value; | |
2551 | Other options include: | |
2552 | I<PrintRet> affects printing of return value after B<r> command, | |
04e43a21 DL |
2553 | I<frame> affects printing messages on subroutine entry/exit. |
2554 | I<AutoTrace> affects printing messages on possible breaking points. | |
2555 | I<maxTraceLen> gives max length of evals/args listed in stack trace. | |
055fd3a9 | 2556 | I<ornaments> affects screen appearance of the command line. |
f1583d8f IZ |
2557 | I<CreateTTY> bits control attempts to create a new TTY on events: |
2558 | 1: on fork() 2: debugger is started inside debugger | |
2559 | 4: on startup | |
055fd3a9 GS |
2560 | During startup options are initialized from \$ENV{PERLDB_OPTS}. |
2561 | You can put additional initialization options I<TTY>, I<noTTY>, | |
2562 | I<ReadLine>, I<NonStop>, and I<RemotePort> there (or use | |
2563 | `B<R>' after you set them). | |
2564 | ||
2565 | B<q> or B<^D> Quit. Set B<\$DB::finished = 0> to debug global destruction. | |
6027b9a3 IZ |
2566 | B<h> [I<db_command>] Get help [on a specific debugger command], enter B<|h> to page. |
2567 | B<h h> Summary of debugger commands. | |
055fd3a9 GS |
2568 | B<$doccmd> I<manpage> Runs the external doc viewer B<$doccmd> command on the |
2569 | named Perl I<manpage>, or on B<$doccmd> itself if omitted. | |
2570 | Set B<\$DB::doccmd> to change viewer. | |
2571 | ||
2572 | Type `|h' for a paged display if this was too hard to read. | |
2573 | ||
04e43a21 | 2574 | "; # Fix balance of vi % matching: }}}} |
d338d6fe | 2575 | |
c391288e | 2576 | # note: tabs in the following section are not-so-helpful |
d338d6fe | 2577 | $summary = <<"END_SUM"; |
6027b9a3 IZ |
2578 | I<List/search source lines:> I<Control script execution:> |
2579 | B<l> [I<ln>|I<sub>] List source code B<T> Stack trace | |
2580 | B<-> or B<.> List previous/current line B<s> [I<expr>] Single step [in expr] | |
2581 | B<w> [I<line>] List around line B<n> [I<expr>] Next, steps over subs | |
d9f67849 | 2582 | B<f> I<filename> View source in file <B<CR>/B<Enter>> Repeat last B<n> or B<s> |
6027b9a3 | 2583 | B</>I<pattern>B</> B<?>I<patt>B<?> Search forw/backw B<r> Return from subroutine |
c391288e | 2584 | B<v> Show versions of modules B<c> [I<ln>|I<sub>] Continue until position |
6027b9a3 IZ |
2585 | I<Debugger controls:> B<L> List break/watch/actions |
2586 | B<O> [...] Set debugger options B<t> [I<expr>] Toggle trace [trace expr] | |
d9f67849 | 2587 | B<<>[B<<>]|B<{>[B<{>]|B<>>[B<>>] [I<cmd>] Do pre/post-prompt B<b> [I<ln>|I<event>|I<sub>] [I<cnd>] Set breakpoint |
6027b9a3 IZ |
2588 | B<$prc> [I<N>|I<pat>] Redo a previous command B<d> [I<ln>] or B<D> Delete a/all breakpoints |
2589 | B<H> [I<-num>] Display last num commands B<a> [I<ln>] I<cmd> Do cmd before line | |
2590 | B<=> [I<a> I<val>] Define/list an alias B<W> I<expr> Add a watch expression | |
2591 | B<h> [I<db_cmd>] Get help on command B<A> or B<W> Delete all actions/watch | |
d9f67849 | 2592 | B<|>[B<|>]I<db_cmd> Send output to pager B<$psh>\[B<$psh>\] I<syscmd> Run cmd in a subprocess |
c391288e JE |
2593 | B<q> or B<^D> Quit B<R> Attempt a restart |
2594 | I<Data Examination:> B<expr> Execute perl code, also see: B<s>,B<n>,B<t> I<expr> | |
2595 | B<x>|B<m> I<expr> Evals expr in list context, dumps the result or lists methods. | |
2596 | B<p> I<expr> Print expression (uses script's current package). | |
2597 | B<S> [[B<!>]I<pat>] List subroutine names [not] matching pattern | |
2598 | B<V> [I<Pk> [I<Vars>]] List Variables in Package. Vars can be ~pattern or !pattern. | |
2599 | B<X> [I<Vars>] Same as \"B<V> I<current_package> [I<Vars>]\". | |
055fd3a9 | 2600 | For more help, type B<h> I<cmd_letter>, or run B<$doccmd perldebug> for all docs. |
d338d6fe | 2601 | END_SUM |
055fd3a9 | 2602 | # ')}}; # Fix balance of vi % matching |
d338d6fe | 2603 | } |
2604 | ||
6027b9a3 | 2605 | sub print_help { |
055fd3a9 GS |
2606 | local $_ = shift; |
2607 | ||
2608 | # Restore proper alignment destroyed by eeevil I<> and B<> | |
2609 | # ornaments: A pox on both their houses! | |
2610 | # | |
2611 | # A help command will have everything up to and including | |
04e43a21 DL |
2612 | # the first tab sequence padded into a field 16 (or if indented 20) |
2613 | # wide. If it's wider than that, an extra space will be added. | |
055fd3a9 GS |
2614 | s{ |
2615 | ^ # only matters at start of line | |
2616 | ( \040{4} | \t )* # some subcommands are indented | |
2617 | ( < ? # so <CR> works | |
2618 | [BI] < [^\t\n] + ) # find an eeevil ornament | |
2619 | ( \t+ ) # original separation, discarded | |
2620 | ( .* ) # this will now start (no earlier) than | |
2621 | # column 16 | |
2622 | } { | |
2623 | my($leadwhite, $command, $midwhite, $text) = ($1, $2, $3, $4); | |
2624 | my $clean = $command; | |
2625 | $clean =~ s/[BI]<([^>]*)>/$1/g; | |
2626 | # replace with this whole string: | |
04e43a21 | 2627 | ($leadwhite ? " " x 4 : "") |
055fd3a9 | 2628 | . $command |
04e43a21 | 2629 | . ((" " x (16 + ($leadwhite ? 4 : 0) - length($clean))) || " ") |
055fd3a9 GS |
2630 | . $text; |
2631 | ||
2632 | }mgex; | |
2633 | ||
2634 | s{ # handle bold ornaments | |
2635 | B < ( [^>] + | > ) > | |
2636 | } { | |
2637 | $Term::ReadLine::TermCap::rl_term_set[2] | |
2638 | . $1 | |
2639 | . $Term::ReadLine::TermCap::rl_term_set[3] | |
2640 | }gex; | |
2641 | ||
2642 | s{ # handle italic ornaments | |
2643 | I < ( [^>] + | > ) > | |
2644 | } { | |
2645 | $Term::ReadLine::TermCap::rl_term_set[0] | |
2646 | . $1 | |
2647 | . $Term::ReadLine::TermCap::rl_term_set[1] | |
2648 | }gex; | |
2649 | ||
2650 | print $OUT $_; | |
2651 | } | |
2652 | ||
2653 | sub fix_less { | |
2654 | return if defined $ENV{LESS} && $ENV{LESS} =~ /r/; | |
2655 | my $is_less = $pager =~ /\bless\b/; | |
2656 | if ($pager =~ /\bmore\b/) { | |
2657 | my @st_more = stat('/usr/bin/more'); | |
2658 | my @st_less = stat('/usr/bin/less'); | |
2659 | $is_less = @st_more && @st_less | |
2660 | && $st_more[0] == $st_less[0] | |
2661 | && $st_more[1] == $st_less[1]; | |
2662 | } | |
2663 | # changes environment! | |
2664 | $ENV{LESS} .= 'r' if $is_less; | |
6027b9a3 IZ |
2665 | } |
2666 | ||
d338d6fe | 2667 | sub diesignal { |
54d04a52 | 2668 | local $frame = 0; |
ee971a18 | 2669 | local $doret = -2; |
77fb7b16 | 2670 | $SIG{'ABRT'} = 'DEFAULT'; |
d338d6fe | 2671 | kill 'ABRT', $$ if $panic++; |
ee85b803 CS |
2672 | if (defined &Carp::longmess) { |
2673 | local $SIG{__WARN__} = ''; | |
2674 | local $Carp::CarpLevel = 2; # mydie + confess | |
2675 | &warn(Carp::longmess("Signal @_")); | |
2676 | } | |
2677 | else { | |
2678 | print $DB::OUT "Got signal @_\n"; | |
2679 | } | |
d338d6fe | 2680 | kill 'ABRT', $$; |
2681 | } | |
2682 | ||
2683 | sub dbwarn { | |
54d04a52 | 2684 | local $frame = 0; |
ee971a18 | 2685 | local $doret = -2; |
d338d6fe | 2686 | local $SIG{__WARN__} = ''; |
77fb7b16 | 2687 | local $SIG{__DIE__} = ''; |
fb73857a | 2688 | eval { require Carp } if defined $^S; # If error/warning during compilation, |
2689 | # require may be broken. | |
04e43a21 | 2690 | CORE::warn(@_, "\nCannot print stack trace, load with -MCarp option to see stack"), |
fb73857a | 2691 | return unless defined &Carp::longmess; |
d338d6fe | 2692 | my ($mysingle,$mytrace) = ($single,$trace); |
2693 | $single = 0; $trace = 0; | |
2694 | my $mess = Carp::longmess(@_); | |
2695 | ($single,$trace) = ($mysingle,$mytrace); | |
d338d6fe | 2696 | &warn($mess); |
d338d6fe | 2697 | } |
2698 | ||
2699 | sub dbdie { | |
54d04a52 | 2700 | local $frame = 0; |
ee971a18 | 2701 | local $doret = -2; |
d338d6fe | 2702 | local $SIG{__DIE__} = ''; |
2703 | local $SIG{__WARN__} = ''; | |
2704 | my $i = 0; my $ineval = 0; my $sub; | |
fb73857a | 2705 | if ($dieLevel > 2) { |
d338d6fe | 2706 | local $SIG{__WARN__} = \&dbwarn; |
fb73857a | 2707 | &warn(@_); # Yell no matter what |
2708 | return; | |
2709 | } | |
2710 | if ($dieLevel < 2) { | |
2711 | die @_ if $^S; # in eval propagate | |
d338d6fe | 2712 | } |
98ea0861 IZ |
2713 | # No need to check $^S, eval is much more robust nowadays |
2714 | eval { require Carp }; #if defined $^S;# If error/warning during compilation, | |
fb73857a | 2715 | # require may be broken. |
055fd3a9 | 2716 | |
fb73857a | 2717 | die(@_, "\nCannot print stack trace, load with -MCarp option to see stack") |
2718 | unless defined &Carp::longmess; | |
055fd3a9 | 2719 | |
d338d6fe | 2720 | # We do not want to debug this chunk (automatic disabling works |
2721 | # inside DB::DB, but not in Carp). | |
2722 | my ($mysingle,$mytrace) = ($single,$trace); | |
2723 | $single = 0; $trace = 0; | |
98ea0861 IZ |
2724 | my $mess = "@_"; |
2725 | { | |
2726 | package Carp; # Do not include us in the list | |
2727 | eval { | |
2728 | $mess = Carp::longmess(@_); | |
2729 | }; | |
2730 | } | |
d338d6fe | 2731 | ($single,$trace) = ($mysingle,$mytrace); |
d338d6fe | 2732 | die $mess; |
2733 | } | |
2734 | ||
d338d6fe | 2735 | sub warnLevel { |
2736 | if (@_) { | |
2737 | $prevwarn = $SIG{__WARN__} unless $warnLevel; | |
2738 | $warnLevel = shift; | |
2739 | if ($warnLevel) { | |
0b7ed949 | 2740 | $SIG{__WARN__} = \&DB::dbwarn; |
04e43a21 | 2741 | } elsif ($prevwarn) { |
d338d6fe | 2742 | $SIG{__WARN__} = $prevwarn; |
2743 | } | |
2744 | } | |
2745 | $warnLevel; | |
2746 | } | |
2747 | ||
2748 | sub dieLevel { | |
2749 | if (@_) { | |
2750 | $prevdie = $SIG{__DIE__} unless $dieLevel; | |
2751 | $dieLevel = shift; | |
2752 | if ($dieLevel) { | |
0b7ed949 | 2753 | $SIG{__DIE__} = \&DB::dbdie; # if $dieLevel < 2; |
2754 | #$SIG{__DIE__} = \&DB::diehard if $dieLevel >= 2; | |
d338d6fe | 2755 | print $OUT "Stack dump during die enabled", |
43aed9ee IZ |
2756 | ( $dieLevel == 1 ? " outside of evals" : ""), ".\n" |
2757 | if $I_m_init; | |
d338d6fe | 2758 | print $OUT "Dump printed too.\n" if $dieLevel > 2; |
04e43a21 | 2759 | } elsif ($prevdie) { |
d338d6fe | 2760 | $SIG{__DIE__} = $prevdie; |
2761 | print $OUT "Default die handler restored.\n"; | |
2762 | } | |
2763 | } | |
2764 | $dieLevel; | |
2765 | } | |
2766 | ||
2767 | sub signalLevel { | |
2768 | if (@_) { | |
2769 | $prevsegv = $SIG{SEGV} unless $signalLevel; | |
2770 | $prevbus = $SIG{BUS} unless $signalLevel; | |
2771 | $signalLevel = shift; | |
2772 | if ($signalLevel) { | |
77fb7b16 | 2773 | $SIG{SEGV} = \&DB::diesignal; |
2774 | $SIG{BUS} = \&DB::diesignal; | |
d338d6fe | 2775 | } else { |
2776 | $SIG{SEGV} = $prevsegv; | |
2777 | $SIG{BUS} = $prevbus; | |
2778 | } | |
2779 | } | |
2780 | $signalLevel; | |
2781 | } | |
2782 | ||
83ee9e09 GS |
2783 | sub CvGV_name { |
2784 | my $in = shift; | |
2785 | my $name = CvGV_name_or_bust($in); | |
2786 | defined $name ? $name : $in; | |
2787 | } | |
2788 | ||
2789 | sub CvGV_name_or_bust { | |
2790 | my $in = shift; | |
2791 | return if $skipCvGV; # Backdoor to avoid problems if XS broken... | |
2526eab8 | 2792 | return unless ref $in; |
83ee9e09 GS |
2793 | $in = \&$in; # Hard reference... |
2794 | eval {require Devel::Peek; 1} or return; | |
2795 | my $gv = Devel::Peek::CvGV($in) or return; | |
2796 | *$gv{PACKAGE} . '::' . *$gv{NAME}; | |
2797 | } | |
2798 | ||
1d06cb2d IZ |
2799 | sub find_sub { |
2800 | my $subr = shift; | |
1d06cb2d | 2801 | $sub{$subr} or do { |
83ee9e09 GS |
2802 | return unless defined &$subr; |
2803 | my $name = CvGV_name_or_bust($subr); | |
2804 | my $data; | |
2805 | $data = $sub{$name} if defined $name; | |
2806 | return $data if defined $data; | |
2807 | ||
2808 | # Old stupid way... | |
1d06cb2d IZ |
2809 | $subr = \&$subr; # Hard reference |
2810 | my $s; | |
2811 | for (keys %sub) { | |
2812 | $s = $_, last if $subr eq \&$_; | |
2813 | } | |
2814 | $sub{$s} if $s; | |
2815 | } | |
2816 | } | |
2817 | ||
2818 | sub methods { | |
2819 | my $class = shift; | |
2820 | $class = ref $class if ref $class; | |
2821 | local %seen; | |
2822 | local %packs; | |
2823 | methods_via($class, '', 1); | |
2824 | methods_via('UNIVERSAL', 'UNIVERSAL', 0); | |
2825 | } | |
2826 | ||
2827 | sub methods_via { | |
2828 | my $class = shift; | |
2829 | return if $packs{$class}++; | |
2830 | my $prefix = shift; | |
2831 | my $prepend = $prefix ? "via $prefix: " : ''; | |
2832 | my $name; | |
055fd3a9 GS |
2833 | for $name (grep {defined &{${"${class}::"}{$_}}} |
2834 | sort keys %{"${class}::"}) { | |
477ea2b1 | 2835 | next if $seen{ $name }++; |
1d06cb2d IZ |
2836 | print $DB::OUT "$prepend$name\n"; |
2837 | } | |
2838 | return unless shift; # Recurse? | |
055fd3a9 | 2839 | for $name (@{"${class}::ISA"}) { |
1d06cb2d IZ |
2840 | $prepend = $prefix ? $prefix . " -> $name" : $name; |
2841 | methods_via($name, $prepend, 1); | |
2842 | } | |
2843 | } | |
2844 | ||
055fd3a9 | 2845 | sub setman { |
2986a63f | 2846 | $doccmd = $^O !~ /^(?:MSWin32|VMS|os2|dos|amigaos|riscos|MacOS|NetWare)\z/s |
055fd3a9 GS |
2847 | ? "man" # O Happy Day! |
2848 | : "perldoc"; # Alas, poor unfortunates | |
2849 | } | |
2850 | ||
2851 | sub runman { | |
2852 | my $page = shift; | |
2853 | unless ($page) { | |
2854 | &system("$doccmd $doccmd"); | |
2855 | return; | |
2856 | } | |
2857 | # this way user can override, like with $doccmd="man -Mwhatever" | |
2858 | # or even just "man " to disable the path check. | |
2859 | unless ($doccmd eq 'man') { | |
2860 | &system("$doccmd $page"); | |
2861 | return; | |
2862 | } | |
2863 | ||
2864 | $page = 'perl' if lc($page) eq 'help'; | |
2865 | ||
2866 | require Config; | |
2867 | my $man1dir = $Config::Config{'man1dir'}; | |
2868 | my $man3dir = $Config::Config{'man3dir'}; | |
2869 | for ($man1dir, $man3dir) { s#/[^/]*\z## if /\S/ } | |
2870 | my $manpath = ''; | |
2871 | $manpath .= "$man1dir:" if $man1dir =~ /\S/; | |
2872 | $manpath .= "$man3dir:" if $man3dir =~ /\S/ && $man1dir ne $man3dir; | |
2873 | chop $manpath if $manpath; | |
2874 | # harmless if missing, I figure | |
2875 | my $oldpath = $ENV{MANPATH}; | |
2876 | $ENV{MANPATH} = $manpath if $manpath; | |
2877 | my $nopathopt = $^O =~ /dunno what goes here/; | |
04e43a21 | 2878 | if (CORE::system($doccmd, |
055fd3a9 GS |
2879 | # I just *know* there are men without -M |
2880 | (($manpath && !$nopathopt) ? ("-M", $manpath) : ()), | |
2881 | split ' ', $page) ) | |
2882 | { | |
2883 | unless ($page =~ /^perl\w/) { | |
2884 | if (grep { $page eq $_ } qw{ | |
2885 | 5004delta 5005delta amiga api apio book boot bot call compile | |
2886 | cygwin data dbmfilter debug debguts delta diag doc dos dsc embed | |
2887 | faq faq1 faq2 faq3 faq4 faq5 faq6 faq7 faq8 faq9 filter fork | |
2888 | form func guts hack hist hpux intern ipc lexwarn locale lol mod | |
2889 | modinstall modlib number obj op opentut os2 os390 pod port | |
2890 | ref reftut run sec style sub syn thrtut tie toc todo toot tootc | |
2891 | trap unicode var vms win32 xs xstut | |
2892 | }) | |
2893 | { | |
2894 | $page =~ s/^/perl/; | |
04e43a21 | 2895 | CORE::system($doccmd, |
055fd3a9 GS |
2896 | (($manpath && !$nopathopt) ? ("-M", $manpath) : ()), |
2897 | $page); | |
2898 | } | |
2899 | } | |
2900 | } | |
2901 | if (defined $oldpath) { | |
2902 | $ENV{MANPATH} = $manpath; | |
2903 | } else { | |
2904 | delete $ENV{MANPATH}; | |
2905 | } | |
2906 | } | |
2907 | ||
d338d6fe | 2908 | # The following BEGIN is very handy if debugger goes havoc, debugging debugger? |
2909 | ||
2910 | BEGIN { # This does not compile, alas. | |
2911 | $IN = \*STDIN; # For bugs before DB::OUT has been opened | |
2912 | $OUT = \*STDERR; # For errors before DB::OUT has been opened | |
2913 | $sh = '!'; | |
2914 | $rc = ','; | |
2915 | @hist = ('?'); | |
2916 | $deep = 100; # warning if stack gets this deep | |
2917 | $window = 10; | |
2918 | $preview = 3; | |
2919 | $sub = ''; | |
77fb7b16 | 2920 | $SIG{INT} = \&DB::catch; |
ee971a18 | 2921 | # This may be enabled to debug debugger: |
2922 | #$warnLevel = 1 unless defined $warnLevel; | |
2923 | #$dieLevel = 1 unless defined $dieLevel; | |
2924 | #$signalLevel = 1 unless defined $signalLevel; | |
d338d6fe | 2925 | |
2926 | $db_stop = 0; # Compiler warning | |
2927 | $db_stop = 1 << 30; | |
2928 | $level = 0; # Level of recursive debugging | |
55497cff | 2929 | # @stack and $doret are needed in sub sub, which is called for DB::postponed. |
2930 | # Triggers bug (?) in perl is we postpone this until runtime: | |
2931 | @postponed = @stack = (0); | |
f8b5b99c | 2932 | $stack_depth = 0; # Localized $#stack |
55497cff | 2933 | $doret = -2; |
2934 | $frame = 0; | |
d338d6fe | 2935 | } |
2936 | ||
54d04a52 IZ |
2937 | BEGIN {$^W = $ini_warn;} # Switch warnings back |
2938 | ||
04e43a21 | 2939 | #use Carp; # This did break, left for debugging |
d338d6fe | 2940 | |
55497cff | 2941 | sub db_complete { |
08a4aec0 | 2942 | # Specific code for b c l V m f O, &blah, $blah, @blah, %blah |
55497cff | 2943 | my($text, $line, $start) = @_; |
477ea2b1 | 2944 | my ($itext, $search, $prefix, $pack) = |
055fd3a9 | 2945 | ($text, "^\Q${'package'}::\E([^:]+)\$"); |
55497cff | 2946 | |
08a4aec0 IZ |
2947 | return sort grep /^\Q$text/, (keys %sub), qw(postpone load compile), # subroutines |
2948 | (map { /$search/ ? ($1) : () } keys %sub) | |
2949 | if (substr $line, 0, $start) =~ /^\|*[blc]\s+((postpone|compile)\s+)?$/; | |
2950 | return sort grep /^\Q$text/, values %INC # files | |
477ea2b1 | 2951 | if (substr $line, 0, $start) =~ /^\|*b\s+load\s+$/; |
08a4aec0 IZ |
2952 | return sort map {($_, db_complete($_ . "::", "V ", 2))} |
2953 | grep /^\Q$text/, map { /^(.*)::$/ ? ($1) : ()} keys %:: # top-packages | |
2954 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ and $text =~ /^\w*$/; | |
2955 | return sort map {($_, db_complete($_ . "::", "V ", 2))} | |
2956 | grep !/^main::/, | |
2957 | grep /^\Q$text/, map { /^(.*)::$/ ? ($prefix . "::$1") : ()} keys %{$prefix . '::'} | |
2958 | # packages | |
2959 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ | |
2960 | and $text =~ /^(.*[^:])::?(\w*)$/ and $prefix = $1; | |
477ea2b1 IZ |
2961 | if ( $line =~ /^\|*f\s+(.*)/ ) { # Loaded files |
2962 | # We may want to complete to (eval 9), so $text may be wrong | |
2963 | $prefix = length($1) - length($text); | |
2964 | $text = $1; | |
08a4aec0 IZ |
2965 | return sort |
2966 | map {substr $_, 2 + $prefix} grep /^_<\Q$text/, (keys %main::), $0 | |
477ea2b1 | 2967 | } |
55497cff | 2968 | if ((substr $text, 0, 1) eq '&') { # subroutines |
2969 | $text = substr $text, 1; | |
2970 | $prefix = "&"; | |
08a4aec0 IZ |
2971 | return sort map "$prefix$_", |
2972 | grep /^\Q$text/, | |
2973 | (keys %sub), | |
2974 | (map { /$search/ ? ($1) : () } | |
2975 | keys %sub); | |
55497cff | 2976 | } |
2977 | if ($text =~ /^[\$@%](.*)::(.*)/) { # symbols in a package | |
2978 | $pack = ($1 eq 'main' ? '' : $1) . '::'; | |
2979 | $prefix = (substr $text, 0, 1) . $1 . '::'; | |
2980 | $text = $2; | |
2981 | my @out | |
2982 | = map "$prefix$_", grep /^\Q$text/, grep /^_?[a-zA-Z]/, keys %$pack ; | |
2983 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { | |
2984 | return db_complete($out[0], $line, $start); | |
2985 | } | |
08a4aec0 | 2986 | return sort @out; |
55497cff | 2987 | } |
2988 | if ($text =~ /^[\$@%]/) { # symbols (in $package + packages in main) | |
2989 | $pack = ($package eq 'main' ? '' : $package) . '::'; | |
2990 | $prefix = substr $text, 0, 1; | |
2991 | $text = substr $text, 1; | |
2992 | my @out = map "$prefix$_", grep /^\Q$text/, | |
2993 | (grep /^_?[a-zA-Z]/, keys %$pack), | |
2994 | ( $pack eq '::' ? () : (grep /::$/, keys %::) ) ; | |
2995 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { | |
2996 | return db_complete($out[0], $line, $start); | |
2997 | } | |
08a4aec0 | 2998 | return sort @out; |
55497cff | 2999 | } |
477ea2b1 | 3000 | if ((substr $line, 0, $start) =~ /^\|*O\b.*\s$/) { # Options after a space |
55497cff | 3001 | my @out = grep /^\Q$text/, @options; |
3002 | my $val = option_val($out[0], undef); | |
3003 | my $out = '? '; | |
3004 | if (not defined $val or $val =~ /[\n\r]/) { | |
3005 | # Can do nothing better | |
3006 | } elsif ($val =~ /\s/) { | |
3007 | my $found; | |
3008 | foreach $l (split //, qq/\"\'\#\|/) { | |
3009 | $out = "$l$val$l ", last if (index $val, $l) == -1; | |
3010 | } | |
3011 | } else { | |
3012 | $out = "=$val "; | |
3013 | } | |
3014 | # Default to value if one completion, to question if many | |
a737e074 | 3015 | $rl_attribs->{completer_terminator_character} = (@out == 1 ? $out : '? '); |
08a4aec0 | 3016 | return sort @out; |
55497cff | 3017 | } |
a737e074 | 3018 | return $term->filename_list($text); # filenames |
55497cff | 3019 | } |
3020 | ||
43aed9ee IZ |
3021 | sub end_report { |
3022 | print $OUT "Use `q' to quit or `R' to restart. `h q' for details.\n" | |
3023 | } | |
4639966b | 3024 | |
bf25f2b5 JH |
3025 | sub clean_ENV { |
3026 | if (defined($ini_pids)) { | |
3027 | $ENV{PERLDB_PIDS} = $ini_pids; | |
3028 | } else { | |
3029 | delete($ENV{PERLDB_PIDS}); | |
3030 | } | |
3031 | } | |
3032 | ||
55497cff | 3033 | END { |
20928eff PS |
3034 | $finished = 1 if $inhibit_exit; # So that some keys may be disabled. |
3035 | $fall_off_end = 1 unless $inhibit_exit; | |
36477c24 | 3036 | # Do not stop in at_exit() and destructors on exit: |
20928eff PS |
3037 | $DB::single = !$fall_off_end && !$runnonstop; |
3038 | DB::fake::at_exit() unless $fall_off_end or $runnonstop; | |
55497cff | 3039 | } |
3040 | ||
3041 | package DB::fake; | |
3042 | ||
3043 | sub at_exit { | |
43aed9ee | 3044 | "Debugged program terminated. Use `q' to quit or `R' to restart."; |
55497cff | 3045 | } |
3046 | ||
36477c24 | 3047 | package DB; # Do not trace this 1; below! |
3048 | ||
d338d6fe | 3049 | 1; |