Commit | Line | Data |
---|---|---|
a687059c LW |
1 | package DB; |
2 | ||
54d04a52 | 3 | # Debugger for Perl 5.00x; perl5db.pl patch level: |
d338d6fe | 4 | |
c1051fcf IZ |
5 | # It is crucial that there is no lexicals in scope of `eval ""' down below |
6 | sub eval { | |
7 | # 'my' would make it visible from user code | |
8 | # but so does local! --tchrist [... into @DB::res, not @res. IZ] | |
9 | local @res; | |
10 | { | |
11 | local $otrace = $trace; | |
12 | local $osingle = $single; | |
13 | local $od = $^D; | |
14 | { ($evalarg) = $evalarg =~ /(.*)/s; } | |
15 | @res = eval "$usercontext $evalarg;\n"; # '\n' for nice recursive debug | |
16 | $trace = $otrace; | |
17 | $single = $osingle; | |
18 | $^D = $od; | |
19 | } | |
20 | my $at = $@; | |
21 | local $saved[0]; # Preserve the old value of $@ | |
22 | eval { &DB::save }; | |
23 | if ($at) { | |
24 | print $OUT $at; | |
25 | } elsif ($onetimeDump) { | |
3ae893bd MJD |
26 | if ($onetimeDump eq 'dump') { |
27 | local $option{dumpDepth} = $onetimedumpDepth | |
28 | if defined $onetimedumpDepth; | |
29 | dumpit($OUT, \@res); | |
30 | } elsif ($onetimeDump eq 'methods') { | |
31 | methods($res[0]) ; | |
32 | } | |
c1051fcf IZ |
33 | } |
34 | @res; | |
35 | } | |
36 | ||
37 | # After this point it is safe to introduce lexicals | |
38 | # However, one should not overdo it: leave as much control from outside as possible | |
39 | ||
2f7e9187 | 40 | $VERSION = 1.15; |
43aed9ee | 41 | $header = "perl5db.pl version $VERSION"; |
d338d6fe | 42 | |
d338d6fe | 43 | # |
44 | # This file is automatically included if you do perl -d. | |
45 | # It's probably not useful to include this yourself. | |
46 | # | |
2f7e9187 MS |
47 | # Before venturing further into these twisty passages, it is |
48 | # wise to read the perldebguts man page or risk the ire of dragons. | |
49 | # | |
36477c24 | 50 | # Perl supplies the values for %sub. It effectively inserts |
51 | # a &DB'DB(); in front of every place that can have a | |
d338d6fe | 52 | # breakpoint. Instead of a subroutine call it calls &DB::sub with |
53 | # $DB::sub being the called subroutine. It also inserts a BEGIN | |
54 | # {require 'perl5db.pl'} before the first line. | |
55 | # | |
55497cff | 56 | # After each `require'd file is compiled, but before it is executed, a |
477ea2b1 | 57 | # call to DB::postponed($main::{'_<'.$filename}) is emulated. Here the |
55497cff | 58 | # $filename is the expanded name of the `require'd file (as found as |
59 | # value of %INC). | |
60 | # | |
61 | # Additional services from Perl interpreter: | |
62 | # | |
63 | # if caller() is called from the package DB, it provides some | |
64 | # additional data. | |
65 | # | |
2f7e9187 MS |
66 | # The array @{$main::{'_<'.$filename}} (herein called @dbline) is the |
67 | # line-by-line contents of $filename. | |
55497cff | 68 | # |
2f7e9187 MS |
69 | # The hash %{'_<'.$filename} (herein called %dbline) contains |
70 | # breakpoints and action (it is keyed by line number), and individual | |
71 | # entries are settable (as opposed to the whole hash). Only true/false | |
72 | # is important to the interpreter, though the values used by | |
73 | # perl5db.pl have the form "$break_condition\0$action". Values are | |
74 | # magical in numeric context. | |
55497cff | 75 | # |
51ee6500 | 76 | # The scalar ${'_<'.$filename} contains $filename. |
55497cff | 77 | # |
d338d6fe | 78 | # Note that no subroutine call is possible until &DB::sub is defined |
36477c24 | 79 | # (for subroutines defined outside of the package DB). In fact the same is |
d338d6fe | 80 | # true if $deep is not defined. |
81 | # | |
82 | # $Log: perldb.pl,v $ | |
83 | ||
84 | # | |
85 | # At start reads $rcfile that may set important options. This file | |
86 | # may define a subroutine &afterinit that will be executed after the | |
87 | # debugger is initialized. | |
88 | # | |
89 | # After $rcfile is read reads environment variable PERLDB_OPTS and parses | |
90 | # it as a rest of `O ...' line in debugger prompt. | |
91 | # | |
92 | # The options that can be specified only at startup: | |
93 | # [To set in $rcfile, call &parse_options("optionName=new_value").] | |
94 | # | |
95 | # TTY - the TTY to use for debugging i/o. | |
96 | # | |
97 | # noTTY - if set, goes in NonStop mode. On interrupt if TTY is not set | |
98 | # uses the value of noTTY or "/tmp/perldbtty$$" to find TTY using | |
99 | # Term::Rendezvous. Current variant is to have the name of TTY in this | |
100 | # file. | |
101 | # | |
102 | # ReadLine - If false, dummy ReadLine is used, so you can debug | |
103 | # ReadLine applications. | |
104 | # | |
105 | # NonStop - if true, no i/o is performed until interrupt. | |
106 | # | |
107 | # LineInfo - file or pipe to print line number info to. If it is a | |
108 | # pipe, a short "emacs like" message is used. | |
109 | # | |
363b4d59 GT |
110 | # RemotePort - host:port to connect to on remote host for remote debugging. |
111 | # | |
d338d6fe | 112 | # Example $rcfile: (delete leading hashes!) |
113 | # | |
114 | # &parse_options("NonStop=1 LineInfo=db.out"); | |
115 | # sub afterinit { $trace = 1; } | |
116 | # | |
117 | # The script will run without human intervention, putting trace | |
118 | # information into db.out. (If you interrupt it, you would better | |
119 | # reset LineInfo to something "interactive"!) | |
120 | # | |
ee971a18 | 121 | ################################################################## |
055fd3a9 GS |
122 | |
123 | # Enhanced by ilya@math.ohio-state.edu (Ilya Zakharevich) | |
055fd3a9 GS |
124 | |
125 | # modified Perl debugger, to be run from Emacs in perldb-mode | |
126 | # Ray Lischner (uunet!mntgfx!lisch) as of 5 Nov 1990 | |
127 | # Johan Vromans -- upgrade to 4.0 pl 10 | |
128 | # Ilya Zakharevich -- patches after 5.001 (and some before ;-) | |
129 | ||
ee971a18 | 130 | # Changelog: |
131 | ||
132 | # A lot of things changed after 0.94. First of all, core now informs | |
133 | # debugger about entry into XSUBs, overloaded operators, tied operations, | |
134 | # BEGIN and END. Handy with `O f=2'. | |
135 | ||
136 | # This can make debugger a little bit too verbose, please be patient | |
137 | # and report your problems promptly. | |
138 | ||
139 | # Now the option frame has 3 values: 0,1,2. | |
140 | ||
141 | # Note that if DESTROY returns a reference to the object (or object), | |
142 | # the deletion of data may be postponed until the next function call, | |
143 | # due to the need to examine the return value. | |
144 | ||
55497cff | 145 | # Changes: 0.95: `v' command shows versions. |
146 | # Changes: 0.96: `v' command shows version of readline. | |
147 | # primitive completion works (dynamic variables, subs for `b' and `l', | |
148 | # options). Can `p %var' | |
149 | # Better help (`h <' now works). New commands <<, >>, {, {{. | |
150 | # {dump|print}_trace() coded (to be able to do it from <<cmd). | |
151 | # `c sub' documented. | |
152 | # At last enough magic combined to stop after the end of debuggee. | |
153 | # !! should work now (thanks to Emacs bracket matching an extra | |
154 | # `]' in a regexp is caught). | |
155 | # `L', `D' and `A' span files now (as documented). | |
156 | # Breakpoints in `require'd code are possible (used in `R'). | |
157 | # Some additional words on internal work of debugger. | |
158 | # `b load filename' implemented. | |
159 | # `b postpone subr' implemented. | |
04e43a21 | 160 | # now only `q' exits debugger (overwritable on $inhibit_exit). |
55497cff | 161 | # When restarting debugger breakpoints/actions persist. |
162 | # Buglet: When restarting debugger only one breakpoint/action per | |
163 | # autoloaded function persists. | |
36477c24 | 164 | # Changes: 0.97: NonStop will not stop in at_exit(). |
165 | # Option AutoTrace implemented. | |
166 | # Trace printed differently if frames are printed too. | |
1d06cb2d IZ |
167 | # new `inhibitExit' option. |
168 | # printing of a very long statement interruptible. | |
169 | # Changes: 0.98: New command `m' for printing possible methods | |
04e43a21 | 170 | # 'l -' is a synonym for `-'. |
1d06cb2d IZ |
171 | # Cosmetic bugs in printing stack trace. |
172 | # `frame' & 8 to print "expanded args" in stack trace. | |
173 | # Can list/break in imported subs. | |
174 | # new `maxTraceLen' option. | |
175 | # frame & 4 and frame & 8 granted. | |
176 | # new command `m' | |
177 | # nonstoppable lines do not have `:' near the line number. | |
178 | # `b compile subname' implemented. | |
179 | # Will not use $` any more. | |
180 | # `-' behaves sane now. | |
477ea2b1 IZ |
181 | # Changes: 0.99: Completion for `f', `m'. |
182 | # `m' will remove duplicate names instead of duplicate functions. | |
183 | # `b load' strips trailing whitespace. | |
184 | # completion ignores leading `|'; takes into account current package | |
185 | # when completing a subroutine name (same for `l'). | |
055fd3a9 GS |
186 | # Changes: 1.07: Many fixed by tchrist 13-March-2000 |
187 | # BUG FIXES: | |
04e43a21 | 188 | # + Added bare minimal security checks on perldb rc files, plus |
055fd3a9 GS |
189 | # comments on what else is needed. |
190 | # + Fixed the ornaments that made "|h" completely unusable. | |
191 | # They are not used in print_help if they will hurt. Strip pod | |
192 | # if we're paging to less. | |
193 | # + Fixed mis-formatting of help messages caused by ornaments | |
194 | # to restore Larry's original formatting. | |
195 | # + Fixed many other formatting errors. The code is still suboptimal, | |
04e43a21 | 196 | # and needs a lot of work at restructuring. It's also misindented |
055fd3a9 GS |
197 | # in many places. |
198 | # + Fixed bug where trying to look at an option like your pager | |
199 | # shows "1". | |
200 | # + Fixed some $? processing. Note: if you use csh or tcsh, you will | |
201 | # lose. You should consider shell escapes not using their shell, | |
202 | # or else not caring about detailed status. This should really be | |
203 | # unified into one place, too. | |
204 | # + Fixed bug where invisible trailing whitespace on commands hoses you, | |
04e43a21 | 205 | # tricking Perl into thinking you weren't calling a debugger command! |
055fd3a9 GS |
206 | # + Fixed bug where leading whitespace on commands hoses you. (One |
207 | # suggests a leading semicolon or any other irrelevant non-whitespace | |
208 | # to indicate literal Perl code.) | |
209 | # + Fixed bugs that ate warnings due to wrong selected handle. | |
210 | # + Fixed a precedence bug on signal stuff. | |
211 | # + Fixed some unseemly wording. | |
212 | # + Fixed bug in help command trying to call perl method code. | |
213 | # + Fixed to call dumpvar from exception handler. SIGPIPE killed us. | |
214 | # ENHANCEMENTS: | |
215 | # + Added some comments. This code is still nasty spaghetti. | |
216 | # + Added message if you clear your pre/post command stacks which was | |
217 | # very easy to do if you just typed a bare >, <, or {. (A command | |
218 | # without an argument should *never* be a destructive action; this | |
219 | # API is fundamentally screwed up; likewise option setting, which | |
220 | # is equally buggered.) | |
221 | # + Added command stack dump on argument of "?" for >, <, or {. | |
222 | # + Added a semi-built-in doc viewer command that calls man with the | |
223 | # proper %Config::Config path (and thus gets caching, man -k, etc), | |
224 | # or else perldoc on obstreperous platforms. | |
225 | # + Added to and rearranged the help information. | |
226 | # + Detected apparent misuse of { ... } to declare a block; this used | |
227 | # to work but now is a command, and mysteriously gave no complaint. | |
04e43a21 DL |
228 | # |
229 | # Changes: 1.08: Apr 25, 2001 Jon Eveland <jweveland@yahoo.com> | |
230 | # BUG FIX: | |
231 | # + This patch to perl5db.pl cleans up formatting issues on the help | |
232 | # summary (h h) screen in the debugger. Mostly columnar alignment | |
233 | # issues, plus converted the printed text to use all spaces, since | |
234 | # tabs don't seem to help much here. | |
235 | # | |
236 | # Changes: 1.09: May 19, 2001 Ilya Zakharevich <ilya@math.ohio-state.edu> | |
237 | # 0) Minor bugs corrected; | |
238 | # a) Support for auto-creation of new TTY window on startup, either | |
239 | # unconditionally, or if started as a kid of another debugger session; | |
240 | # b) New `O'ption CreateTTY | |
241 | # I<CreateTTY> bits control attempts to create a new TTY on events: | |
242 | # 1: on fork() 2: debugger is started inside debugger | |
243 | # 4: on startup | |
d1be9408 | 244 | # c) Code to auto-create a new TTY window on OS/2 (currently one |
04e43a21 DL |
245 | # extra window per session - need named pipes to have more...); |
246 | # d) Simplified interface for custom createTTY functions (with a backward | |
247 | # compatibility hack); now returns the TTY name to use; return of '' | |
248 | # means that the function reset the I/O handles itself; | |
249 | # d') Better message on the semantic of custom createTTY function; | |
250 | # e) Convert the existing code to create a TTY into a custom createTTY | |
251 | # function; | |
252 | # f) Consistent support for TTY names of the form "TTYin,TTYout"; | |
253 | # g) Switch line-tracing output too to the created TTY window; | |
254 | # h) make `b fork' DWIM with CORE::GLOBAL::fork; | |
255 | # i) High-level debugger API cmd_*(): | |
256 | # cmd_b_load($filenamepart) # b load filenamepart | |
257 | # cmd_b_line($lineno [, $cond]) # b lineno [cond] | |
258 | # cmd_b_sub($sub [, $cond]) # b sub [cond] | |
259 | # cmd_stop() # Control-C | |
260 | # cmd_d($lineno) # d lineno | |
261 | # The cmd_*() API returns FALSE on failure; in this case it outputs | |
262 | # the error message to the debugging output. | |
263 | # j) Low-level debugger API | |
264 | # break_on_load($filename) # b load filename | |
265 | # @files = report_break_on_load() # List files with load-breakpoints | |
266 | # breakable_line_in_filename($name, $from [, $to]) | |
267 | # # First breakable line in the | |
268 | # # range $from .. $to. $to defaults | |
269 | # # to $from, and may be less than $to | |
270 | # breakable_line($from [, $to]) # Same for the current file | |
271 | # break_on_filename_line($name, $lineno [, $cond]) | |
272 | # # Set breakpoint,$cond defaults to 1 | |
273 | # break_on_filename_line_range($name, $from, $to [, $cond]) | |
274 | # # As above, on the first | |
275 | # # breakable line in range | |
276 | # break_on_line($lineno [, $cond]) # As above, in the current file | |
277 | # break_subroutine($sub [, $cond]) # break on the first breakable line | |
278 | # ($name, $from, $to) = subroutine_filename_lines($sub) | |
279 | # # The range of lines of the text | |
280 | # The low-level API returns TRUE on success, and die()s on failure. | |
281 | # | |
282 | # Changes: 1.10: May 23, 2001 Daniel Lewart <d-lewart@uiuc.edu> | |
283 | # BUG FIXES: | |
284 | # + Fixed warnings generated by "perl -dWe 42" | |
285 | # + Corrected spelling errors | |
286 | # + Squeezed Help (h) output into 80 columns | |
600d99fa DL |
287 | # |
288 | # Changes: 1.11: May 24, 2001 David Dyck <dcd@tc.fluke.com> | |
289 | # + Made "x @INC" work like it used to | |
290 | # | |
291 | # Changes: 1.12: May 24, 2001 Daniel Lewart <d-lewart@uiuc.edu> | |
292 | # + Fixed warnings generated by "O" (Show debugger options) | |
293 | # + Fixed warnings generated by "p 42" (Print expression) | |
6f891d7d SM |
294 | # Changes: 1.13: Jun 19, 2001 Scott.L.Miller@compaq.com |
295 | # + Added windowSize option | |
2f7e9187 MS |
296 | # Changes: 1.14: Oct 9, 2001 multiple |
297 | # + Clean up after itself on VMS (Charles Lane in 12385) | |
298 | # + Adding "@ file" syntax (Peter Scott in 12014) | |
299 | # + Debug reloading selfloaded stuff (Ilya Zakharevich in 11457) | |
300 | # + $^S and other debugger fixes (Ilya Zakharevich in 11120) | |
301 | # + Forgot a my() declaration (Ilya Zakharevich in 11085) | |
302 | # Changes: 1.15: Nov 6, 2001 Michael G Schwern <schwern@pobox.com> | |
303 | # + Updated 1.14 change log | |
304 | # + Added *dbline explainatory comments | |
305 | # + Mentioning perldebguts man page | |
ee971a18 | 306 | #################################################################### |
d338d6fe | 307 | |
54d04a52 | 308 | # Needed for the statement after exec(): |
d338d6fe | 309 | |
54d04a52 IZ |
310 | BEGIN { $ini_warn = $^W; $^W = 0 } # Switch compilation warnings off until another BEGIN. |
311 | local($^W) = 0; # Switch run-time warnings off during init. | |
d338d6fe | 312 | warn ( # Do not ;-) |
313 | $dumpvar::hashDepth, | |
314 | $dumpvar::arrayDepth, | |
315 | $dumpvar::dumpDBFiles, | |
316 | $dumpvar::dumpPackages, | |
317 | $dumpvar::quoteHighBit, | |
318 | $dumpvar::printUndef, | |
319 | $dumpvar::globPrint, | |
d338d6fe | 320 | $dumpvar::usageOnly, |
321 | @ARGS, | |
322 | $Carp::CarpLevel, | |
54d04a52 | 323 | $panic, |
36477c24 | 324 | $second_time, |
d338d6fe | 325 | ) if 0; |
326 | ||
54d04a52 IZ |
327 | # Command-line + PERLLIB: |
328 | @ini_INC = @INC; | |
329 | ||
d338d6fe | 330 | # $prevwarn = $prevdie = $prevbus = $prevsegv = ''; # Does not help?! |
331 | ||
332 | $trace = $signal = $single = 0; # Uninitialized warning suppression | |
333 | # (local $^W cannot help - other packages!). | |
55497cff | 334 | $inhibit_exit = $option{PrintRet} = 1; |
d338d6fe | 335 | |
d03c2a1b MJD |
336 | @options = qw(hashDepth arrayDepth dumpDepth |
337 | DumpDBFiles DumpPackages DumpReused | |
d338d6fe | 338 | compactDump veryCompact quote HighBit undefPrint |
36477c24 | 339 | globPrint PrintRet UsageOnly frame AutoTrace |
1d06cb2d | 340 | TTY noTTY ReadLine NonStop LineInfo maxTraceLen |
7a2e2cd6 | 341 | recallCommand ShellBang pager tkRunning ornaments |
3aefca04 | 342 | signalLevel warnLevel dieLevel inhibit_exit |
f1583d8f | 343 | ImmediateStop bareStringify CreateTTY |
6f891d7d | 344 | RemotePort windowSize); |
d338d6fe | 345 | |
346 | %optionVars = ( | |
347 | hashDepth => \$dumpvar::hashDepth, | |
348 | arrayDepth => \$dumpvar::arrayDepth, | |
349 | DumpDBFiles => \$dumpvar::dumpDBFiles, | |
350 | DumpPackages => \$dumpvar::dumpPackages, | |
22fae026 | 351 | DumpReused => \$dumpvar::dumpReused, |
d338d6fe | 352 | HighBit => \$dumpvar::quoteHighBit, |
353 | undefPrint => \$dumpvar::printUndef, | |
354 | globPrint => \$dumpvar::globPrint, | |
f1583d8f IZ |
355 | UsageOnly => \$dumpvar::usageOnly, |
356 | CreateTTY => \$CreateTTY, | |
ee239bfe | 357 | bareStringify => \$dumpvar::bareStringify, |
36477c24 | 358 | frame => \$frame, |
359 | AutoTrace => \$trace, | |
360 | inhibit_exit => \$inhibit_exit, | |
1d06cb2d | 361 | maxTraceLen => \$maxtrace, |
3aefca04 | 362 | ImmediateStop => \$ImmediateStop, |
363b4d59 | 363 | RemotePort => \$remoteport, |
6f891d7d | 364 | windowSize => \$window, |
d338d6fe | 365 | ); |
366 | ||
367 | %optionAction = ( | |
368 | compactDump => \&dumpvar::compactDump, | |
369 | veryCompact => \&dumpvar::veryCompact, | |
370 | quote => \&dumpvar::quote, | |
371 | TTY => \&TTY, | |
372 | noTTY => \&noTTY, | |
373 | ReadLine => \&ReadLine, | |
374 | NonStop => \&NonStop, | |
375 | LineInfo => \&LineInfo, | |
376 | recallCommand => \&recallCommand, | |
377 | ShellBang => \&shellBang, | |
378 | pager => \&pager, | |
379 | signalLevel => \&signalLevel, | |
380 | warnLevel => \&warnLevel, | |
381 | dieLevel => \&dieLevel, | |
a737e074 | 382 | tkRunning => \&tkRunning, |
7a2e2cd6 | 383 | ornaments => \&ornaments, |
363b4d59 | 384 | RemotePort => \&RemotePort, |
d338d6fe | 385 | ); |
386 | ||
387 | %optionRequire = ( | |
388 | compactDump => 'dumpvar.pl', | |
389 | veryCompact => 'dumpvar.pl', | |
390 | quote => 'dumpvar.pl', | |
391 | ); | |
392 | ||
393 | # These guys may be defined in $ENV{PERL5DB} : | |
4c82ae22 | 394 | $rl = 1 unless defined $rl; |
98ea0861 IZ |
395 | $warnLevel = 1 unless defined $warnLevel; |
396 | $dieLevel = 1 unless defined $dieLevel; | |
4c82ae22 GS |
397 | $signalLevel = 1 unless defined $signalLevel; |
398 | $pre = [] unless defined $pre; | |
399 | $post = [] unless defined $post; | |
400 | $pretype = [] unless defined $pretype; | |
f1583d8f | 401 | $CreateTTY = 3 unless defined $CreateTTY; |
055fd3a9 | 402 | |
d338d6fe | 403 | warnLevel($warnLevel); |
404 | dieLevel($dieLevel); | |
405 | signalLevel($signalLevel); | |
055fd3a9 | 406 | |
4865a36d MS |
407 | pager( |
408 | defined $ENV{PAGER} ? $ENV{PAGER} : | |
409 | eval { require Config } && | |
410 | defined $Config::Config{pager} ? $Config::Config{pager} | |
411 | : 'more' | |
412 | ) unless defined $pager; | |
055fd3a9 | 413 | setman(); |
d338d6fe | 414 | &recallCommand("!") unless defined $prc; |
415 | &shellBang("!") unless defined $psh; | |
04e43a21 | 416 | sethelp(); |
1d06cb2d | 417 | $maxtrace = 400 unless defined $maxtrace; |
f1583d8f IZ |
418 | $ini_pids = $ENV{PERLDB_PIDS}; |
419 | if (defined $ENV{PERLDB_PIDS}) { | |
420 | $pids = "[$ENV{PERLDB_PIDS}]"; | |
421 | $ENV{PERLDB_PIDS} .= "->$$"; | |
422 | $term_pid = -1; | |
423 | } else { | |
424 | $ENV{PERLDB_PIDS} = "$$"; | |
425 | $pids = ''; | |
426 | $term_pid = $$; | |
427 | } | |
428 | $pidprompt = ''; | |
04e43a21 | 429 | *emacs = $slave_editor if $slave_editor; # May be used in afterinit()... |
d338d6fe | 430 | |
055fd3a9 | 431 | if (-e "/dev/tty") { # this is the wrong metric! |
d338d6fe | 432 | $rcfile=".perldb"; |
433 | } else { | |
434 | $rcfile="perldb.ini"; | |
435 | } | |
436 | ||
055fd3a9 GS |
437 | # This isn't really safe, because there's a race |
438 | # between checking and opening. The solution is to | |
439 | # open and fstat the handle, but then you have to read and | |
440 | # eval the contents. But then the silly thing gets | |
441 | # your lexical scope, which is unfortunately at best. | |
442 | sub safe_do { | |
443 | my $file = shift; | |
444 | ||
445 | # Just exactly what part of the word "CORE::" don't you understand? | |
446 | local $SIG{__WARN__}; | |
447 | local $SIG{__DIE__}; | |
448 | ||
449 | unless (is_safe_file($file)) { | |
450 | CORE::warn <<EO_GRIPE; | |
451 | perldb: Must not source insecure rcfile $file. | |
452 | You or the superuser must be the owner, and it must not | |
453 | be writable by anyone but its owner. | |
454 | EO_GRIPE | |
455 | return; | |
456 | } | |
457 | ||
458 | do $file; | |
459 | CORE::warn("perldb: couldn't parse $file: $@") if $@; | |
460 | } | |
461 | ||
462 | ||
463 | # Verifies that owner is either real user or superuser and that no | |
464 | # one but owner may write to it. This function is of limited use | |
465 | # when called on a path instead of upon a handle, because there are | |
466 | # no guarantees that filename (by dirent) whose file (by ino) is | |
467 | # eventually accessed is the same as the one tested. | |
468 | # Assumes that the file's existence is not in doubt. | |
469 | sub is_safe_file { | |
470 | my $path = shift; | |
471 | stat($path) || return; # mysteriously vaporized | |
472 | my($dev,$ino,$mode,$nlink,$uid,$gid) = stat(_); | |
473 | ||
474 | return 0 if $uid != 0 && $uid != $<; | |
475 | return 0 if $mode & 022; | |
476 | return 1; | |
477 | } | |
478 | ||
d338d6fe | 479 | if (-f $rcfile) { |
055fd3a9 GS |
480 | safe_do("./$rcfile"); |
481 | } | |
482 | elsif (defined $ENV{HOME} && -f "$ENV{HOME}/$rcfile") { | |
483 | safe_do("$ENV{HOME}/$rcfile"); | |
484 | } | |
485 | elsif (defined $ENV{LOGDIR} && -f "$ENV{LOGDIR}/$rcfile") { | |
486 | safe_do("$ENV{LOGDIR}/$rcfile"); | |
d338d6fe | 487 | } |
488 | ||
489 | if (defined $ENV{PERLDB_OPTS}) { | |
490 | parse_options($ENV{PERLDB_OPTS}); | |
491 | } | |
492 | ||
f1583d8f IZ |
493 | if ( not defined &get_fork_TTY and defined $ENV{TERM} and $ENV{TERM} eq 'xterm' |
494 | and defined $ENV{WINDOWID} and defined $ENV{DISPLAY} ) { # _inside_ XTERM? | |
495 | *get_fork_TTY = \&xterm_get_fork_TTY; | |
496 | } elsif ($^O eq 'os2') { | |
497 | *get_fork_TTY = \&os2_get_fork_TTY; | |
498 | } | |
499 | ||
055fd3a9 GS |
500 | # Here begin the unreadable code. It needs fixing. |
501 | ||
54d04a52 IZ |
502 | if (exists $ENV{PERLDB_RESTART}) { |
503 | delete $ENV{PERLDB_RESTART}; | |
504 | # $restart = 1; | |
505 | @hist = get_list('PERLDB_HIST'); | |
55497cff | 506 | %break_on_load = get_list("PERLDB_ON_LOAD"); |
507 | %postponed = get_list("PERLDB_POSTPONE"); | |
508 | my @had_breakpoints= get_list("PERLDB_VISITED"); | |
509 | for (0 .. $#had_breakpoints) { | |
0c395bd7 CS |
510 | my %pf = get_list("PERLDB_FILE_$_"); |
511 | $postponed_file{$had_breakpoints[$_]} = \%pf if %pf; | |
54d04a52 IZ |
512 | } |
513 | my %opt = get_list("PERLDB_OPT"); | |
514 | my ($opt,$val); | |
515 | while (($opt,$val) = each %opt) { | |
516 | $val =~ s/[\\\']/\\$1/g; | |
517 | parse_options("$opt'$val'"); | |
518 | } | |
519 | @INC = get_list("PERLDB_INC"); | |
520 | @ini_INC = @INC; | |
43aed9ee IZ |
521 | $pretype = [get_list("PERLDB_PRETYPE")]; |
522 | $pre = [get_list("PERLDB_PRE")]; | |
523 | $post = [get_list("PERLDB_POST")]; | |
524 | @typeahead = get_list("PERLDB_TYPEAHEAD", @typeahead); | |
54d04a52 IZ |
525 | } |
526 | ||
d338d6fe | 527 | if ($notty) { |
528 | $runnonstop = 1; | |
529 | } else { | |
055fd3a9 GS |
530 | # Is Perl being run from a slave editor or graphical debugger? |
531 | $slave_editor = ((defined $main::ARGV[0]) and ($main::ARGV[0] eq '-emacs')); | |
532 | $rl = 0, shift(@main::ARGV) if $slave_editor; | |
d338d6fe | 533 | |
534 | #require Term::ReadLine; | |
535 | ||
4fabb596 | 536 | if ($^O eq 'cygwin') { |
8736538c AS |
537 | # /dev/tty is binary. use stdin for textmode |
538 | undef $console; | |
539 | } elsif (-e "/dev/tty") { | |
d338d6fe | 540 | $console = "/dev/tty"; |
39e571d4 | 541 | } elsif ($^O eq 'dos' or -e "con" or $^O eq 'MSWin32') { |
d338d6fe | 542 | $console = "con"; |
6d697788 JH |
543 | } elsif ($^O eq 'MacOS') { |
544 | if ($MacPerl::Version !~ /MPW/) { | |
545 | $console = "Dev:Console:Perl Debug"; # Separate window for application | |
546 | } else { | |
547 | $console = "Dev:Console"; | |
548 | } | |
d338d6fe | 549 | } else { |
550 | $console = "sys\$command"; | |
551 | } | |
552 | ||
055fd3a9 | 553 | if (($^O eq 'MSWin32') and ($slave_editor or defined $ENV{EMACS})) { |
96774cc9 JR |
554 | $console = undef; |
555 | } | |
556 | ||
2986a63f JH |
557 | if ($^O eq 'NetWare') { |
558 | $console = undef; | |
559 | } | |
560 | ||
d338d6fe | 561 | # Around a bug: |
055fd3a9 | 562 | if (defined $ENV{OS2_SHELL} and ($slave_editor or $ENV{WINDOWID})) { # In OS/2 |
d338d6fe | 563 | $console = undef; |
564 | } | |
565 | ||
4d2c4e07 OF |
566 | if ($^O eq 'epoc') { |
567 | $console = undef; | |
568 | } | |
569 | ||
d338d6fe | 570 | $console = $tty if defined $tty; |
571 | ||
363b4d59 GT |
572 | if (defined $remoteport) { |
573 | require IO::Socket; | |
574 | $OUT = new IO::Socket::INET( Timeout => '10', | |
575 | PeerAddr => $remoteport, | |
576 | Proto => 'tcp', | |
577 | ); | |
0aa2ae9a | 578 | if (!$OUT) { die "Unable to connect to remote host: $remoteport\n"; } |
363b4d59 | 579 | $IN = $OUT; |
f1583d8f | 580 | } else { |
43c8efd8 | 581 | create_IN_OUT(4) if $CreateTTY & 4; |
c1051fcf | 582 | if ($console) { |
04e43a21 | 583 | my ($i, $o) = split /,/, $console; |
f1583d8f IZ |
584 | $o = $i unless defined $o; |
585 | open(IN,"+<$i") || open(IN,"<$i") || open(IN,"<&STDIN"); | |
586 | open(OUT,"+>$o") || open(OUT,">$o") || open(OUT,">&STDERR") | |
363b4d59 | 587 | || open(OUT,">&STDOUT"); # so we don't dongle stdout |
c1051fcf | 588 | } elsif (not defined $console) { |
363b4d59 GT |
589 | open(IN,"<&STDIN"); |
590 | open(OUT,">&STDERR") || open(OUT,">&STDOUT"); # so we don't dongle stdout | |
591 | $console = 'STDIN/OUT'; | |
592 | } | |
593 | # so open("|more") can read from STDOUT and so we don't dingle stdin | |
c1051fcf | 594 | $IN = \*IN, $OUT = \*OUT if $console or not defined $console; |
363b4d59 | 595 | } |
5b17b83d | 596 | my $previous = select($OUT); |
d338d6fe | 597 | $| = 1; # for DB::OUT |
5b17b83d | 598 | select($previous); |
d338d6fe | 599 | |
600 | $LINEINFO = $OUT unless defined $LINEINFO; | |
601 | $lineinfo = $console unless defined $lineinfo; | |
602 | ||
d338d6fe | 603 | $header =~ s/.Header: ([^,]+),v(\s+\S+\s+\S+).*$/$1$2/; |
604 | unless ($runnonstop) { | |
f1583d8f IZ |
605 | if ($term_pid eq '-1') { |
606 | print $OUT "\nDaughter DB session started...\n"; | |
607 | } else { | |
608 | print $OUT "\nLoading DB routines from $header\n"; | |
609 | print $OUT ("Editor support ", | |
610 | $slave_editor ? "enabled" : "available", | |
611 | ".\n"); | |
612 | print $OUT "\nEnter h or `h h' for help, or `$doccmd perldebug' for more help.\n\n"; | |
613 | } | |
d338d6fe | 614 | } |
615 | } | |
616 | ||
617 | @ARGS = @ARGV; | |
618 | for (@args) { | |
619 | s/\'/\\\'/g; | |
620 | s/(.*)/'$1'/ unless /^-?[\d.]+$/; | |
621 | } | |
622 | ||
623 | if (defined &afterinit) { # May be defined in $rcfile | |
624 | &afterinit(); | |
625 | } | |
626 | ||
43aed9ee IZ |
627 | $I_m_init = 1; |
628 | ||
d338d6fe | 629 | ############################################################ Subroutines |
630 | ||
d338d6fe | 631 | sub DB { |
36477c24 | 632 | # _After_ the perl program is compiled, $single is set to 1: |
633 | if ($single and not $second_time++) { | |
634 | if ($runnonstop) { # Disable until signal | |
f8b5b99c | 635 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe | 636 | $stack[$i++] &= ~1; |
637 | } | |
54d04a52 | 638 | $single = 0; |
36477c24 | 639 | # return; # Would not print trace! |
3aefca04 IZ |
640 | } elsif ($ImmediateStop) { |
641 | $ImmediateStop = 0; | |
642 | $signal = 1; | |
54d04a52 | 643 | } |
d338d6fe | 644 | } |
36477c24 | 645 | $runnonstop = 0 if $single or $signal; # Disable it if interactive. |
d338d6fe | 646 | &save; |
d338d6fe | 647 | ($package, $filename, $line) = caller; |
54d04a52 | 648 | $filename_ini = $filename; |
22fae026 | 649 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
d338d6fe | 650 | "package $package;"; # this won't let them modify, alas |
8ebc5c01 | 651 | local(*dbline) = $main::{'_<' . $filename}; |
d338d6fe | 652 | $max = $#dbline; |
04e43a21 | 653 | if ($dbline{$line} && (($stop,$action) = split(/\0/,$dbline{$line}))) { |
d338d6fe | 654 | if ($stop eq '1') { |
655 | $signal |= 1; | |
54d04a52 | 656 | } elsif ($stop) { |
3f521411 | 657 | $evalarg = "\$DB::signal |= 1 if do {$stop}"; &eval; |
d338d6fe | 658 | $dbline{$line} =~ s/;9($|\0)/$1/; |
659 | } | |
660 | } | |
36477c24 | 661 | my $was_signal = $signal; |
6027b9a3 IZ |
662 | if ($trace & 2) { |
663 | for (my $n = 0; $n <= $#to_watch; $n++) { | |
664 | $evalarg = $to_watch[$n]; | |
ed0d1bf7 | 665 | local $onetimeDump; # Do not output results |
6027b9a3 IZ |
666 | my ($val) = &eval; # Fix context (&eval is doing array)? |
667 | $val = ( (defined $val) ? "'$val'" : 'undef' ); | |
668 | if ($val ne $old_watch[$n]) { | |
669 | $signal = 1; | |
670 | print $OUT <<EOP; | |
405ff068 IZ |
671 | Watchpoint $n:\t$to_watch[$n] changed: |
672 | old value:\t$old_watch[$n] | |
673 | new value:\t$val | |
6027b9a3 IZ |
674 | EOP |
675 | $old_watch[$n] = $val; | |
676 | } | |
677 | } | |
678 | } | |
679 | if ($trace & 4) { # User-installed watch | |
680 | return if watchfunction($package, $filename, $line) | |
681 | and not $single and not $was_signal and not ($trace & ~4); | |
682 | } | |
683 | $was_signal = $signal; | |
36477c24 | 684 | $signal = 0; |
6027b9a3 | 685 | if ($single || ($trace & 1) || $was_signal) { |
055fd3a9 | 686 | if ($slave_editor) { |
54d04a52 | 687 | $position = "\032\032$filename:$line:0\n"; |
f1583d8f | 688 | print_lineinfo($position); |
405ff068 | 689 | } elsif ($package eq 'DB::fake') { |
65c9c81d | 690 | $term || &setterm; |
405ff068 IZ |
691 | print_help(<<EOP); |
692 | Debugged program terminated. Use B<q> to quit or B<R> to restart, | |
693 | use B<O> I<inhibit_exit> to avoid stopping after program termination, | |
694 | B<h q>, B<h R> or B<h O> to get additional info. | |
695 | EOP | |
696 | $package = 'main'; | |
363b4d59 | 697 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
405ff068 | 698 | "package $package;"; # this won't let them modify, alas |
d338d6fe | 699 | } else { |
700 | $sub =~ s/\'/::/; | |
701 | $prefix = $sub =~ /::/ ? "" : "${'package'}::"; | |
702 | $prefix .= "$sub($filename:"; | |
703 | $after = ($dbline[$line] =~ /\n$/ ? '' : "\n"); | |
704 | if (length($prefix) > 30) { | |
54d04a52 | 705 | $position = "$prefix$line):\n$line:\t$dbline[$line]$after"; |
d338d6fe | 706 | $prefix = ""; |
707 | $infix = ":\t"; | |
708 | } else { | |
709 | $infix = "):\t"; | |
54d04a52 | 710 | $position = "$prefix$line$infix$dbline[$line]$after"; |
36477c24 | 711 | } |
712 | if ($frame) { | |
f1583d8f | 713 | print_lineinfo(' ' x $stack_depth, "$line:\t$dbline[$line]$after"); |
36477c24 | 714 | } else { |
f1583d8f | 715 | print_lineinfo($position); |
d338d6fe | 716 | } |
717 | for ($i = $line + 1; $i <= $max && $dbline[$i] == 0; ++$i) { #{ vi | |
718 | last if $dbline[$i] =~ /^\s*[\;\}\#\n]/; | |
36477c24 | 719 | last if $signal; |
d338d6fe | 720 | $after = ($dbline[$i] =~ /\n$/ ? '' : "\n"); |
54d04a52 | 721 | $incr_pos = "$prefix$i$infix$dbline[$i]$after"; |
54d04a52 | 722 | $position .= $incr_pos; |
36477c24 | 723 | if ($frame) { |
f1583d8f | 724 | print_lineinfo(' ' x $stack_depth, "$i:\t$dbline[$i]$after"); |
36477c24 | 725 | } else { |
f1583d8f | 726 | print_lineinfo($incr_pos); |
36477c24 | 727 | } |
d338d6fe | 728 | } |
729 | } | |
730 | } | |
731 | $evalarg = $action, &eval if $action; | |
36477c24 | 732 | if ($single || $was_signal) { |
d338d6fe | 733 | local $level = $level + 1; |
e63173ce IZ |
734 | foreach $evalarg (@$pre) { |
735 | &eval; | |
736 | } | |
f8b5b99c | 737 | print $OUT $stack_depth . " levels deep in subroutine calls!\n" |
d338d6fe | 738 | if $single & 4; |
739 | $start = $line; | |
1d06cb2d | 740 | $incr = -1; # for backward motion. |
6657d1ba | 741 | @typeahead = (@$pretype, @typeahead); |
d338d6fe | 742 | CMD: |
743 | while (($term || &setterm), | |
f1583d8f IZ |
744 | ($term_pid == $$ or resetterm(1)), |
745 | defined ($cmd=&readline("$pidprompt DB" . ('<' x $level) . | |
54d04a52 | 746 | ($#hist+1) . ('>' x $level) . |
055fd3a9 GS |
747 | " "))) |
748 | { | |
d338d6fe | 749 | $single = 0; |
750 | $signal = 0; | |
751 | $cmd =~ s/\\$/\n/ && do { | |
54d04a52 | 752 | $cmd .= &readline(" cont: "); |
d338d6fe | 753 | redo CMD; |
754 | }; | |
d338d6fe | 755 | $cmd =~ /^$/ && ($cmd = $laststep); |
756 | push(@hist,$cmd) if length($cmd) > 1; | |
757 | PIPE: { | |
3dcd9d33 GS |
758 | $cmd =~ s/^\s+//s; # trim annoying leading whitespace |
759 | $cmd =~ s/\s+$//s; # trim annoying trailing whitespace | |
d338d6fe | 760 | ($i) = split(/\s+/,$cmd); |
055fd3a9 | 761 | if ($alias{$i}) { |
3dcd9d33 GS |
762 | # squelch the sigmangler |
763 | local $SIG{__DIE__}; | |
764 | local $SIG{__WARN__}; | |
055fd3a9 | 765 | eval "\$cmd =~ $alias{$i}"; |
3dcd9d33 GS |
766 | if ($@) { |
767 | print $OUT "Couldn't evaluate `$i' alias: $@"; | |
768 | next CMD; | |
769 | } | |
055fd3a9 | 770 | } |
bf25f2b5 | 771 | $cmd =~ /^q$/ && ($fall_off_end = 1) && clean_ENV() && exit $?; |
d338d6fe | 772 | $cmd =~ /^h$/ && do { |
6027b9a3 | 773 | print_help($help); |
d338d6fe | 774 | next CMD; }; |
775 | $cmd =~ /^h\s+h$/ && do { | |
6027b9a3 | 776 | print_help($summary); |
d338d6fe | 777 | next CMD; }; |
055fd3a9 GS |
778 | # support long commands; otherwise bogus errors |
779 | # happen when you ask for h on <CR> for example | |
780 | $cmd =~ /^h\s+(\S.*)$/ && do { | |
781 | my $asked = $1; # for proper errmsg | |
782 | my $qasked = quotemeta($asked); # for searching | |
783 | # XXX: finds CR but not <CR> | |
784 | if ($help =~ /^<?(?:[IB]<)$qasked/m) { | |
785 | while ($help =~ /^(<?(?:[IB]<)$qasked([\s\S]*?)\n)(?!\s)/mg) { | |
6027b9a3 | 786 | print_help($1); |
55497cff | 787 | } |
d338d6fe | 788 | } else { |
6027b9a3 | 789 | print_help("B<$asked> is not a debugger command.\n"); |
d338d6fe | 790 | } |
791 | next CMD; }; | |
792 | $cmd =~ /^t$/ && do { | |
3fbd6552 | 793 | $trace ^= 1; |
6027b9a3 IZ |
794 | print $OUT "Trace = " . |
795 | (($trace & 1) ? "on" : "off" ) . "\n"; | |
d338d6fe | 796 | next CMD; }; |
797 | $cmd =~ /^S(\s+(!)?(.+))?$/ && do { | |
798 | $Srev = defined $2; $Spatt = $3; $Snocheck = ! defined $1; | |
799 | foreach $subname (sort(keys %sub)) { | |
800 | if ($Snocheck or $Srev^($subname =~ /$Spatt/)) { | |
801 | print $OUT $subname,"\n"; | |
802 | } | |
803 | } | |
804 | next CMD; }; | |
ee971a18 | 805 | $cmd =~ /^v$/ && do { |
806 | list_versions(); next CMD}; | |
d338d6fe | 807 | $cmd =~ s/^X\b/V $package/; |
808 | $cmd =~ /^V$/ && do { | |
809 | $cmd = "V $package"; }; | |
810 | $cmd =~ /^V\b\s*(\S+)\s*(.*)/ && do { | |
811 | local ($savout) = select($OUT); | |
812 | $packname = $1; | |
813 | @vars = split(' ',$2); | |
814 | do 'dumpvar.pl' unless defined &main::dumpvar; | |
815 | if (defined &main::dumpvar) { | |
54d04a52 | 816 | local $frame = 0; |
ee971a18 | 817 | local $doret = -2; |
055fd3a9 GS |
818 | # must detect sigpipe failures |
819 | eval { &main::dumpvar($packname,@vars) }; | |
820 | if ($@) { | |
821 | die unless $@ =~ /dumpvar print failed/; | |
822 | } | |
d338d6fe | 823 | } else { |
824 | print $OUT "dumpvar.pl not available.\n"; | |
825 | } | |
826 | select ($savout); | |
827 | next CMD; }; | |
828 | $cmd =~ s/^x\b/ / && do { # So that will be evaled | |
3ae893bd MJD |
829 | $onetimeDump = 'dump'; |
830 | # handle special "x 3 blah" syntax | |
831 | if ($cmd =~ s/^\s*(\d+)(?=\s)/ /) { | |
832 | $onetimedumpDepth = $1; | |
833 | } | |
834 | }; | |
1d06cb2d IZ |
835 | $cmd =~ s/^m\s+([\w:]+)\s*$/ / && do { |
836 | methods($1); next CMD}; | |
837 | $cmd =~ s/^m\b/ / && do { # So this will be evaled | |
838 | $onetimeDump = 'methods'; }; | |
d338d6fe | 839 | $cmd =~ /^f\b\s*(.*)/ && do { |
840 | $file = $1; | |
477ea2b1 | 841 | $file =~ s/\s+$//; |
d338d6fe | 842 | if (!$file) { |
843 | print $OUT "The old f command is now the r command.\n"; | |
844 | print $OUT "The new f command switches filenames.\n"; | |
845 | next CMD; | |
846 | } | |
847 | if (!defined $main::{'_<' . $file}) { | |
848 | if (($try) = grep(m#^_<.*$file#, keys %main::)) {{ | |
477ea2b1 IZ |
849 | $try = substr($try,2); |
850 | print $OUT "Choosing $try matching `$file':\n"; | |
851 | $file = $try; | |
d338d6fe | 852 | }} |
853 | } | |
854 | if (!defined $main::{'_<' . $file}) { | |
04fb8f4b | 855 | print $OUT "No file matching `$file' is loaded.\n"; |
d338d6fe | 856 | next CMD; |
857 | } elsif ($file ne $filename) { | |
8ebc5c01 | 858 | *dbline = $main::{'_<' . $file}; |
d338d6fe | 859 | $max = $#dbline; |
860 | $filename = $file; | |
861 | $start = 1; | |
862 | $cmd = "l"; | |
477ea2b1 IZ |
863 | } else { |
864 | print $OUT "Already in $file.\n"; | |
865 | next CMD; | |
866 | } | |
867 | }; | |
1d06cb2d | 868 | $cmd =~ s/^l\s+-\s*$/-/; |
83ee9e09 GS |
869 | $cmd =~ /^([lb])\b\s*(\$.*)/s && do { |
870 | $evalarg = $2; | |
871 | my ($s) = &eval; | |
872 | print($OUT "Error: $@\n"), next CMD if $@; | |
873 | $s = CvGV_name($s); | |
874 | print($OUT "Interpreted as: $1 $s\n"); | |
875 | $cmd = "$1 $s"; | |
876 | }; | |
877 | $cmd =~ /^l\b\s*([\':A-Za-z_][\':\w]*(\[.*\])?)/s && do { | |
f1583d8f | 878 | my $s = $subname = $1; |
d338d6fe | 879 | $subname =~ s/\'/::/; |
477ea2b1 IZ |
880 | $subname = $package."::".$subname |
881 | unless $subname =~ /::/; | |
f1583d8f IZ |
882 | $subname = "CORE::GLOBAL::$s" |
883 | if not defined &$subname and $s !~ /::/ | |
884 | and defined &{"CORE::GLOBAL::$s"}; | |
d338d6fe | 885 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
83ee9e09 | 886 | @pieces = split(/:/,find_sub($subname) || $sub{$subname}); |
d338d6fe | 887 | $subrange = pop @pieces; |
888 | $file = join(':', @pieces); | |
889 | if ($file ne $filename) { | |
bee32ff8 | 890 | print $OUT "Switching to file '$file'.\n" |
055fd3a9 | 891 | unless $slave_editor; |
8ebc5c01 | 892 | *dbline = $main::{'_<' . $file}; |
d338d6fe | 893 | $max = $#dbline; |
894 | $filename = $file; | |
895 | } | |
896 | if ($subrange) { | |
897 | if (eval($subrange) < -$window) { | |
898 | $subrange =~ s/-.*/+/; | |
899 | } | |
900 | $cmd = "l $subrange"; | |
901 | } else { | |
902 | print $OUT "Subroutine $subname not found.\n"; | |
903 | next CMD; | |
904 | } }; | |
54d04a52 | 905 | $cmd =~ /^\.$/ && do { |
1d06cb2d | 906 | $incr = -1; # for backward motion. |
54d04a52 IZ |
907 | $start = $line; |
908 | $filename = $filename_ini; | |
8ebc5c01 | 909 | *dbline = $main::{'_<' . $filename}; |
54d04a52 | 910 | $max = $#dbline; |
f1583d8f | 911 | print_lineinfo($position); |
54d04a52 | 912 | next CMD }; |
d338d6fe | 913 | $cmd =~ /^w\b\s*(\d*)$/ && do { |
914 | $incr = $window - 1; | |
915 | $start = $1 if $1; | |
916 | $start -= $preview; | |
54d04a52 | 917 | #print $OUT 'l ' . $start . '-' . ($start + $incr); |
d338d6fe | 918 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
919 | $cmd =~ /^-$/ && do { | |
1d06cb2d IZ |
920 | $start -= $incr + $window + 1; |
921 | $start = 1 if $start <= 0; | |
d338d6fe | 922 | $incr = $window - 1; |
1d06cb2d | 923 | $cmd = 'l ' . ($start) . '+'; }; |
d338d6fe | 924 | $cmd =~ /^l$/ && do { |
925 | $incr = $window - 1; | |
926 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; | |
927 | $cmd =~ /^l\b\s*(\d*)\+(\d*)$/ && do { | |
928 | $start = $1 if $1; | |
929 | $incr = $2; | |
930 | $incr = $window - 1 unless $incr; | |
931 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; | |
54d04a52 IZ |
932 | $cmd =~ /^l\b\s*((-?[\d\$\.]+)([-,]([\d\$\.]+))?)?/ && do { |
933 | $end = (!defined $2) ? $max : ($4 ? $4 : $2); | |
d338d6fe | 934 | $end = $max if $end > $max; |
935 | $i = $2; | |
936 | $i = $line if $i eq '.'; | |
937 | $i = 1 if $i < 1; | |
1d06cb2d | 938 | $incr = $end - $i; |
055fd3a9 | 939 | if ($slave_editor) { |
d338d6fe | 940 | print $OUT "\032\032$filename:$i:0\n"; |
941 | $i = $end; | |
942 | } else { | |
943 | for (; $i <= $end; $i++) { | |
1b4321cf | 944 | my ($stop,$action); |
04e43a21 DL |
945 | ($stop,$action) = split(/\0/, $dbline{$i}) if |
946 | $dbline{$i}; | |
54d04a52 IZ |
947 | $arrow = ($i==$line |
948 | and $filename eq $filename_ini) | |
949 | ? '==>' | |
36477c24 | 950 | : ($dbline[$i]+0 ? ':' : ' ') ; |
54d04a52 IZ |
951 | $arrow .= 'b' if $stop; |
952 | $arrow .= 'a' if $action; | |
953 | print $OUT "$i$arrow\t", $dbline[$i]; | |
65c9c81d | 954 | $i++, last if $signal; |
d338d6fe | 955 | } |
65c9c81d | 956 | print $OUT "\n" unless $dbline[$i-1] =~ /\n$/; |
d338d6fe | 957 | } |
958 | $start = $i; # remember in case they want more | |
959 | $start = $max if $start > $max; | |
960 | next CMD; }; | |
961 | $cmd =~ /^D$/ && do { | |
55497cff | 962 | print $OUT "Deleting all breakpoints...\n"; |
963 | my $file; | |
964 | for $file (keys %had_breakpoints) { | |
8ebc5c01 | 965 | local *dbline = $main::{'_<' . $file}; |
55497cff | 966 | my $max = $#dbline; |
967 | my $was; | |
968 | ||
d338d6fe | 969 | for ($i = 1; $i <= $max ; $i++) { |
970 | if (defined $dbline{$i}) { | |
971 | $dbline{$i} =~ s/^[^\0]+//; | |
972 | if ($dbline{$i} =~ s/^\0?$//) { | |
973 | delete $dbline{$i}; | |
974 | } | |
975 | } | |
976 | } | |
3fbd6552 GS |
977 | |
978 | if (not $had_breakpoints{$file} &= ~1) { | |
979 | delete $had_breakpoints{$file}; | |
980 | } | |
55497cff | 981 | } |
982 | undef %postponed; | |
983 | undef %postponed_file; | |
984 | undef %break_on_load; | |
55497cff | 985 | next CMD; }; |
d338d6fe | 986 | $cmd =~ /^L$/ && do { |
55497cff | 987 | my $file; |
988 | for $file (keys %had_breakpoints) { | |
8ebc5c01 | 989 | local *dbline = $main::{'_<' . $file}; |
55497cff | 990 | my $max = $#dbline; |
991 | my $was; | |
992 | ||
d338d6fe | 993 | for ($i = 1; $i <= $max; $i++) { |
994 | if (defined $dbline{$i}) { | |
2002527a | 995 | print $OUT "$file:\n" unless $was++; |
55497cff | 996 | print $OUT " $i:\t", $dbline[$i]; |
d338d6fe | 997 | ($stop,$action) = split(/\0/, $dbline{$i}); |
55497cff | 998 | print $OUT " break if (", $stop, ")\n" |
d338d6fe | 999 | if $stop; |
55497cff | 1000 | print $OUT " action: ", $action, "\n" |
d338d6fe | 1001 | if $action; |
1002 | last if $signal; | |
1003 | } | |
1004 | } | |
55497cff | 1005 | } |
1006 | if (%postponed) { | |
1007 | print $OUT "Postponed breakpoints in subroutines:\n"; | |
1008 | my $subname; | |
1009 | for $subname (keys %postponed) { | |
1010 | print $OUT " $subname\t$postponed{$subname}\n"; | |
1011 | last if $signal; | |
1012 | } | |
1013 | } | |
1014 | my @have = map { # Combined keys | |
1015 | keys %{$postponed_file{$_}} | |
1016 | } keys %postponed_file; | |
1017 | if (@have) { | |
1018 | print $OUT "Postponed breakpoints in files:\n"; | |
1019 | my ($file, $line); | |
1020 | for $file (keys %postponed_file) { | |
0c395bd7 | 1021 | my $db = $postponed_file{$file}; |
55497cff | 1022 | print $OUT " $file:\n"; |
0c395bd7 | 1023 | for $line (sort {$a <=> $b} keys %$db) { |
08a4aec0 | 1024 | print $OUT " $line:\n"; |
0c395bd7 | 1025 | my ($stop,$action) = split(/\0/, $$db{$line}); |
55497cff | 1026 | print $OUT " break if (", $stop, ")\n" |
1027 | if $stop; | |
1028 | print $OUT " action: ", $action, "\n" | |
1029 | if $action; | |
1030 | last if $signal; | |
1031 | } | |
1032 | last if $signal; | |
1033 | } | |
1034 | } | |
1035 | if (%break_on_load) { | |
1036 | print $OUT "Breakpoints on load:\n"; | |
1037 | my $file; | |
1038 | for $file (keys %break_on_load) { | |
1039 | print $OUT " $file\n"; | |
1040 | last if $signal; | |
1041 | } | |
1042 | } | |
6027b9a3 IZ |
1043 | if ($trace & 2) { |
1044 | print $OUT "Watch-expressions:\n"; | |
1045 | my $expr; | |
1046 | for $expr (@to_watch) { | |
1047 | print $OUT " $expr\n"; | |
1048 | last if $signal; | |
1049 | } | |
1050 | } | |
55497cff | 1051 | next CMD; }; |
1052 | $cmd =~ /^b\b\s*load\b\s*(.*)/ && do { | |
477ea2b1 | 1053 | my $file = $1; $file =~ s/\s+$//; |
f1583d8f | 1054 | cmd_b_load($file); |
55497cff | 1055 | next CMD; }; |
1d06cb2d | 1056 | $cmd =~ /^b\b\s*(postpone|compile)\b\s*([':A-Za-z_][':\w]*)\s*(.*)/ && do { |
a223bd61 | 1057 | my $cond = length $3 ? $3 : '1'; |
1d06cb2d | 1058 | my ($subname, $break) = ($2, $1 eq 'postpone'); |
a223bd61 | 1059 | $subname =~ s/\'/::/g; |
55497cff | 1060 | $subname = "${'package'}::" . $subname |
1061 | unless $subname =~ /::/; | |
1062 | $subname = "main".$subname if substr($subname,0,2) eq "::"; | |
1d06cb2d IZ |
1063 | $postponed{$subname} = $break |
1064 | ? "break +0 if $cond" : "compile"; | |
d338d6fe | 1065 | next CMD; }; |
83ee9e09 | 1066 | $cmd =~ /^b\b\s*([':A-Za-z_][':\w]*(?:\[.*\])?)\s*(.*)/ && do { |
d338d6fe | 1067 | $subname = $1; |
a223bd61 | 1068 | $cond = length $2 ? $2 : '1'; |
f1583d8f | 1069 | cmd_b_sub($subname, $cond); |
d338d6fe | 1070 | next CMD; }; |
1071 | $cmd =~ /^b\b\s*(\d*)\s*(.*)/ && do { | |
3fbd6552 | 1072 | $i = $1 || $line; |
31706494 | 1073 | $cond = length $2 ? $2 : '1'; |
f1583d8f | 1074 | cmd_b_line($i, $cond); |
d338d6fe | 1075 | next CMD; }; |
3fbd6552 | 1076 | $cmd =~ /^d\b\s*(\d*)/ && do { |
f1583d8f | 1077 | cmd_d($1 || $line); |
d338d6fe | 1078 | next CMD; }; |
1079 | $cmd =~ /^A$/ && do { | |
3fbd6552 | 1080 | print $OUT "Deleting all actions...\n"; |
55497cff | 1081 | my $file; |
1082 | for $file (keys %had_breakpoints) { | |
8ebc5c01 | 1083 | local *dbline = $main::{'_<' . $file}; |
55497cff | 1084 | my $max = $#dbline; |
1085 | my $was; | |
1086 | ||
d338d6fe | 1087 | for ($i = 1; $i <= $max ; $i++) { |
1088 | if (defined $dbline{$i}) { | |
1089 | $dbline{$i} =~ s/\0[^\0]*//; | |
1090 | delete $dbline{$i} if $dbline{$i} eq ''; | |
1091 | } | |
1092 | } | |
3fbd6552 | 1093 | |
055fd3a9 | 1094 | unless ($had_breakpoints{$file} &= ~2) { |
3fbd6552 GS |
1095 | delete $had_breakpoints{$file}; |
1096 | } | |
55497cff | 1097 | } |
1098 | next CMD; }; | |
d338d6fe | 1099 | $cmd =~ /^O\s*$/ && do { |
1100 | for (@options) { | |
1101 | &dump_option($_); | |
1102 | } | |
1103 | next CMD; }; | |
1104 | $cmd =~ /^O\s*(\S.*)/ && do { | |
1105 | parse_options($1); | |
1106 | next CMD; }; | |
55497cff | 1107 | $cmd =~ /^\<\<\s*(.*)/ && do { # \<\< for CPerl sake: not HERE |
1108 | push @$pre, action($1); | |
1109 | next CMD; }; | |
1110 | $cmd =~ /^>>\s*(.*)/ && do { | |
1111 | push @$post, action($1); | |
1112 | next CMD; }; | |
d338d6fe | 1113 | $cmd =~ /^<\s*(.*)/ && do { |
055fd3a9 | 1114 | unless ($1) { |
e4e99f0d | 1115 | print $OUT "All < actions cleared.\n"; |
055fd3a9 GS |
1116 | $pre = []; |
1117 | next CMD; | |
1118 | } | |
1119 | if ($1 eq '?') { | |
1120 | unless (@$pre) { | |
e4e99f0d | 1121 | print $OUT "No pre-prompt Perl actions.\n"; |
055fd3a9 GS |
1122 | next CMD; |
1123 | } | |
e4e99f0d | 1124 | print $OUT "Perl commands run before each prompt:\n"; |
055fd3a9 | 1125 | for my $action ( @$pre ) { |
e4e99f0d | 1126 | print $OUT "\t< -- $action\n"; |
055fd3a9 GS |
1127 | } |
1128 | next CMD; | |
1129 | } | |
55497cff | 1130 | $pre = [action($1)]; |
d338d6fe | 1131 | next CMD; }; |
1132 | $cmd =~ /^>\s*(.*)/ && do { | |
055fd3a9 | 1133 | unless ($1) { |
e4e99f0d | 1134 | print $OUT "All > actions cleared.\n"; |
055fd3a9 GS |
1135 | $post = []; |
1136 | next CMD; | |
1137 | } | |
1138 | if ($1 eq '?') { | |
1139 | unless (@$post) { | |
e4e99f0d | 1140 | print $OUT "No post-prompt Perl actions.\n"; |
055fd3a9 GS |
1141 | next CMD; |
1142 | } | |
e4e99f0d | 1143 | print $OUT "Perl commands run after each prompt:\n"; |
055fd3a9 | 1144 | for my $action ( @$post ) { |
e4e99f0d | 1145 | print $OUT "\t> -- $action\n"; |
055fd3a9 GS |
1146 | } |
1147 | next CMD; | |
1148 | } | |
55497cff | 1149 | $post = [action($1)]; |
1150 | next CMD; }; | |
1151 | $cmd =~ /^\{\{\s*(.*)/ && do { | |
055fd3a9 | 1152 | if ($cmd =~ /^\{.*\}$/ && unbalanced(substr($cmd,2))) { |
e4e99f0d | 1153 | print $OUT "{{ is now a debugger command\n", |
055fd3a9 GS |
1154 | "use `;{{' if you mean Perl code\n"; |
1155 | $cmd = "h {{"; | |
1156 | redo CMD; | |
1157 | } | |
55497cff | 1158 | push @$pretype, $1; |
1159 | next CMD; }; | |
1160 | $cmd =~ /^\{\s*(.*)/ && do { | |
055fd3a9 | 1161 | unless ($1) { |
e4e99f0d | 1162 | print $OUT "All { actions cleared.\n"; |
055fd3a9 GS |
1163 | $pretype = []; |
1164 | next CMD; | |
1165 | } | |
1166 | if ($1 eq '?') { | |
1167 | unless (@$pretype) { | |
e4e99f0d | 1168 | print $OUT "No pre-prompt debugger actions.\n"; |
055fd3a9 GS |
1169 | next CMD; |
1170 | } | |
e4e99f0d | 1171 | print $OUT "Debugger commands run before each prompt:\n"; |
055fd3a9 | 1172 | for my $action ( @$pretype ) { |
e4e99f0d | 1173 | print $OUT "\t{ -- $action\n"; |
055fd3a9 GS |
1174 | } |
1175 | next CMD; | |
1176 | } | |
1177 | if ($cmd =~ /^\{.*\}$/ && unbalanced(substr($cmd,1))) { | |
e4e99f0d | 1178 | print $OUT "{ is now a debugger command\n", |
055fd3a9 GS |
1179 | "use `;{' if you mean Perl code\n"; |
1180 | $cmd = "h {"; | |
1181 | redo CMD; | |
1182 | } | |
55497cff | 1183 | $pretype = [$1]; |
d338d6fe | 1184 | next CMD; }; |
3fbd6552 GS |
1185 | $cmd =~ /^a\b\s*(\d*)\s*(.*)/ && do { |
1186 | $i = $1 || $line; $j = $2; | |
1187 | if (length $j) { | |
1188 | if ($dbline[$i] == 0) { | |
1189 | print $OUT "Line $i may not have an action.\n"; | |
1190 | } else { | |
1191 | $had_breakpoints{$filename} |= 2; | |
1192 | $dbline{$i} =~ s/\0[^\0]*//; | |
1193 | $dbline{$i} .= "\0" . action($j); | |
1194 | } | |
d338d6fe | 1195 | } else { |
1196 | $dbline{$i} =~ s/\0[^\0]*//; | |
3fbd6552 | 1197 | delete $dbline{$i} if $dbline{$i} eq ''; |
d338d6fe | 1198 | } |
1199 | next CMD; }; | |
1200 | $cmd =~ /^n$/ && do { | |
4639966b | 1201 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe | 1202 | $single = 2; |
1203 | $laststep = $cmd; | |
1204 | last CMD; }; | |
1205 | $cmd =~ /^s$/ && do { | |
4639966b | 1206 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe | 1207 | $single = 1; |
1208 | $laststep = $cmd; | |
1209 | last CMD; }; | |
54d04a52 | 1210 | $cmd =~ /^c\b\s*([\w:]*)\s*$/ && do { |
4639966b | 1211 | end_report(), next CMD if $finished and $level <= 1; |
fb73857a | 1212 | $subname = $i = $1; |
bee32ff8 GS |
1213 | # Probably not needed, since we finish an interactive |
1214 | # sub-session anyway... | |
1215 | # local $filename = $filename; | |
1216 | # local *dbline = *dbline; # XXX Would this work?! | |
54d04a52 | 1217 | if ($i =~ /\D/) { # subroutine name |
fb73857a | 1218 | $subname = $package."::".$subname |
1219 | unless $subname =~ /::/; | |
1220 | ($file,$i) = (find_sub($subname) =~ /^(.*):(.*)$/); | |
54d04a52 IZ |
1221 | $i += 0; |
1222 | if ($i) { | |
1223 | $filename = $file; | |
8ebc5c01 | 1224 | *dbline = $main::{'_<' . $filename}; |
3fbd6552 | 1225 | $had_breakpoints{$filename} |= 1; |
54d04a52 IZ |
1226 | $max = $#dbline; |
1227 | ++$i while $dbline[$i] == 0 && $i < $max; | |
1228 | } else { | |
1229 | print $OUT "Subroutine $subname not found.\n"; | |
1230 | next CMD; | |
1231 | } | |
1232 | } | |
d338d6fe | 1233 | if ($i) { |
1234 | if ($dbline[$i] == 0) { | |
1235 | print $OUT "Line $i not breakable.\n"; | |
1236 | next CMD; | |
1237 | } | |
1238 | $dbline{$i} =~ s/($|\0)/;9$1/; # add one-time-only b.p. | |
1239 | } | |
f8b5b99c | 1240 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe | 1241 | $stack[$i++] &= ~1; |
1242 | } | |
1243 | last CMD; }; | |
1244 | $cmd =~ /^r$/ && do { | |
4639966b | 1245 | end_report(), next CMD if $finished and $level <= 1; |
f8b5b99c IZ |
1246 | $stack[$stack_depth] |= 1; |
1247 | $doret = $option{PrintRet} ? $stack_depth - 1 : -2; | |
d338d6fe | 1248 | last CMD; }; |
54d04a52 | 1249 | $cmd =~ /^R$/ && do { |
55497cff | 1250 | print $OUT "Warning: some settings and command-line options may be lost!\n"; |
54d04a52 IZ |
1251 | my (@script, @flags, $cl); |
1252 | push @flags, '-w' if $ini_warn; | |
1253 | # Put all the old includes at the start to get | |
1254 | # the same debugger. | |
1255 | for (@ini_INC) { | |
1256 | push @flags, '-I', $_; | |
1257 | } | |
963d69e8 | 1258 | push @flags, '-T' if ${^TAINT}; |
54d04a52 IZ |
1259 | # Arrange for setting the old INC: |
1260 | set_list("PERLDB_INC", @ini_INC); | |
1261 | if ($0 eq '-e') { | |
1262 | for (1..$#{'::_<-e'}) { # The first line is PERL5DB | |
055fd3a9 | 1263 | chomp ($cl = ${'::_<-e'}[$_]); |
54d04a52 IZ |
1264 | push @script, '-e', $cl; |
1265 | } | |
1266 | } else { | |
1267 | @script = $0; | |
1268 | } | |
1269 | set_list("PERLDB_HIST", | |
1270 | $term->Features->{getHistory} | |
1271 | ? $term->GetHistory : @hist); | |
55497cff | 1272 | my @had_breakpoints = keys %had_breakpoints; |
1273 | set_list("PERLDB_VISITED", @had_breakpoints); | |
54d04a52 | 1274 | set_list("PERLDB_OPT", %option); |
55497cff | 1275 | set_list("PERLDB_ON_LOAD", %break_on_load); |
1276 | my @hard; | |
1277 | for (0 .. $#had_breakpoints) { | |
1278 | my $file = $had_breakpoints[$_]; | |
8ebc5c01 | 1279 | *dbline = $main::{'_<' . $file}; |
0c395bd7 | 1280 | next unless %dbline or $postponed_file{$file}; |
55497cff | 1281 | (push @hard, $file), next |
f41f30cf | 1282 | if $file =~ /^\(\w*eval/; |
55497cff | 1283 | my @add; |
1284 | @add = %{$postponed_file{$file}} | |
0c395bd7 | 1285 | if $postponed_file{$file}; |
55497cff | 1286 | set_list("PERLDB_FILE_$_", %dbline, @add); |
1287 | } | |
1288 | for (@hard) { # Yes, really-really... | |
1289 | # Find the subroutines in this eval | |
8ebc5c01 | 1290 | *dbline = $main::{'_<' . $_}; |
55497cff | 1291 | my ($quoted, $sub, %subs, $line) = quotemeta $_; |
1292 | for $sub (keys %sub) { | |
1293 | next unless $sub{$sub} =~ /^$quoted:(\d+)-(\d+)$/; | |
1294 | $subs{$sub} = [$1, $2]; | |
1295 | } | |
1296 | unless (%subs) { | |
1297 | print $OUT | |
1298 | "No subroutines in $_, ignoring breakpoints.\n"; | |
1299 | next; | |
1300 | } | |
1301 | LINES: for $line (keys %dbline) { | |
1302 | # One breakpoint per sub only: | |
1303 | my ($offset, $sub, $found); | |
1304 | SUBS: for $sub (keys %subs) { | |
1305 | if ($subs{$sub}->[1] >= $line # Not after the subroutine | |
1306 | and (not defined $offset # Not caught | |
1307 | or $offset < 0 )) { # or badly caught | |
1308 | $found = $sub; | |
1309 | $offset = $line - $subs{$sub}->[0]; | |
1310 | $offset = "+$offset", last SUBS if $offset >= 0; | |
1311 | } | |
1312 | } | |
1313 | if (defined $offset) { | |
1314 | $postponed{$found} = | |
1315 | "break $offset if $dbline{$line}"; | |
1316 | } else { | |
1317 | print $OUT "Breakpoint in $_:$line ignored: after all the subroutines.\n"; | |
1318 | } | |
1319 | } | |
54d04a52 | 1320 | } |
55497cff | 1321 | set_list("PERLDB_POSTPONE", %postponed); |
43aed9ee IZ |
1322 | set_list("PERLDB_PRETYPE", @$pretype); |
1323 | set_list("PERLDB_PRE", @$pre); | |
1324 | set_list("PERLDB_POST", @$post); | |
1325 | set_list("PERLDB_TYPEAHEAD", @typeahead); | |
54d04a52 | 1326 | $ENV{PERLDB_RESTART} = 1; |
f1583d8f IZ |
1327 | delete $ENV{PERLDB_PIDS}; # Restore ini state |
1328 | $ENV{PERLDB_PIDS} = $ini_pids if defined $ini_pids; | |
055fd3a9 | 1329 | #print "$^X, '-d', @flags, @script, ($slave_editor ? '-emacs' : ()), @ARGS"; |
04e43a21 | 1330 | exec($^X, '-d', @flags, @script, ($slave_editor ? '-emacs' : ()), @ARGS) || |
54d04a52 IZ |
1331 | print $OUT "exec failed: $!\n"; |
1332 | last CMD; }; | |
d338d6fe | 1333 | $cmd =~ /^T$/ && do { |
36477c24 | 1334 | print_trace($OUT, 1); # skip DB |
d338d6fe | 1335 | next CMD; }; |
6027b9a3 IZ |
1336 | $cmd =~ /^W\s*$/ && do { |
1337 | $trace &= ~2; | |
1338 | @to_watch = @old_watch = (); | |
1339 | next CMD; }; | |
1340 | $cmd =~ /^W\b\s*(.*)/s && do { | |
1341 | push @to_watch, $1; | |
1342 | $evalarg = $1; | |
1343 | my ($val) = &eval; | |
1344 | $val = (defined $val) ? "'$val'" : 'undef' ; | |
1345 | push @old_watch, $val; | |
1346 | $trace |= 2; | |
1347 | next CMD; }; | |
d338d6fe | 1348 | $cmd =~ /^\/(.*)$/ && do { |
1349 | $inpat = $1; | |
1350 | $inpat =~ s:([^\\])/$:$1:; | |
1351 | if ($inpat ne "") { | |
3dcd9d33 GS |
1352 | # squelch the sigmangler |
1353 | local $SIG{__DIE__}; | |
1354 | local $SIG{__WARN__}; | |
d338d6fe | 1355 | eval '$inpat =~ m'."\a$inpat\a"; |
1356 | if ($@ ne "") { | |
1357 | print $OUT "$@"; | |
1358 | next CMD; | |
1359 | } | |
1360 | $pat = $inpat; | |
1361 | } | |
1362 | $end = $start; | |
1d06cb2d | 1363 | $incr = -1; |
d338d6fe | 1364 | eval ' |
1365 | for (;;) { | |
1366 | ++$start; | |
1367 | $start = 1 if ($start > $max); | |
1368 | last if ($start == $end); | |
1369 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { | |
055fd3a9 | 1370 | if ($slave_editor) { |
d338d6fe | 1371 | print $OUT "\032\032$filename:$start:0\n"; |
1372 | } else { | |
1373 | print $OUT "$start:\t", $dbline[$start], "\n"; | |
1374 | } | |
1375 | last; | |
1376 | } | |
1377 | } '; | |
1378 | print $OUT "/$pat/: not found\n" if ($start == $end); | |
1379 | next CMD; }; | |
1380 | $cmd =~ /^\?(.*)$/ && do { | |
1381 | $inpat = $1; | |
1382 | $inpat =~ s:([^\\])\?$:$1:; | |
1383 | if ($inpat ne "") { | |
3dcd9d33 GS |
1384 | # squelch the sigmangler |
1385 | local $SIG{__DIE__}; | |
1386 | local $SIG{__WARN__}; | |
d338d6fe | 1387 | eval '$inpat =~ m'."\a$inpat\a"; |
1388 | if ($@ ne "") { | |
3dcd9d33 | 1389 | print $OUT $@; |
d338d6fe | 1390 | next CMD; |
1391 | } | |
1392 | $pat = $inpat; | |
1393 | } | |
1394 | $end = $start; | |
1d06cb2d | 1395 | $incr = -1; |
d338d6fe | 1396 | eval ' |
1397 | for (;;) { | |
1398 | --$start; | |
1399 | $start = $max if ($start <= 0); | |
1400 | last if ($start == $end); | |
1401 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { | |
055fd3a9 | 1402 | if ($slave_editor) { |
d338d6fe | 1403 | print $OUT "\032\032$filename:$start:0\n"; |
1404 | } else { | |
1405 | print $OUT "$start:\t", $dbline[$start], "\n"; | |
1406 | } | |
1407 | last; | |
1408 | } | |
1409 | } '; | |
1410 | print $OUT "?$pat?: not found\n" if ($start == $end); | |
1411 | next CMD; }; | |
1412 | $cmd =~ /^$rc+\s*(-)?(\d+)?$/ && do { | |
1413 | pop(@hist) if length($cmd) > 1; | |
3fbd6552 | 1414 | $i = $1 ? ($#hist-($2||1)) : ($2||$#hist); |
6921e3ed | 1415 | $cmd = $hist[$i]; |
615b993b | 1416 | print $OUT $cmd, "\n"; |
d338d6fe | 1417 | redo CMD; }; |
55497cff | 1418 | $cmd =~ /^$sh$sh\s*([\x00-\xff]*)/ && do { |
ee971a18 | 1419 | &system($1); |
d338d6fe | 1420 | next CMD; }; |
1421 | $cmd =~ /^$rc([^$rc].*)$/ && do { | |
1422 | $pat = "^$1"; | |
1423 | pop(@hist) if length($cmd) > 1; | |
1424 | for ($i = $#hist; $i; --$i) { | |
1425 | last if $hist[$i] =~ /$pat/; | |
1426 | } | |
1427 | if (!$i) { | |
1428 | print $OUT "No such command!\n\n"; | |
1429 | next CMD; | |
1430 | } | |
6921e3ed | 1431 | $cmd = $hist[$i]; |
615b993b | 1432 | print $OUT $cmd, "\n"; |
d338d6fe | 1433 | redo CMD; }; |
1434 | $cmd =~ /^$sh$/ && do { | |
1435 | &system($ENV{SHELL}||"/bin/sh"); | |
1436 | next CMD; }; | |
ee971a18 | 1437 | $cmd =~ /^$sh\s*([\x00-\xff]*)/ && do { |
055fd3a9 GS |
1438 | # XXX: using csh or tcsh destroys sigint retvals! |
1439 | #&system($1); # use this instead | |
ee971a18 | 1440 | &system($ENV{SHELL}||"/bin/sh","-c",$1); |
d338d6fe | 1441 | next CMD; }; |
1442 | $cmd =~ /^H\b\s*(-(\d+))?/ && do { | |
055fd3a9 | 1443 | $end = $2 ? ($#hist-$2) : 0; |
d338d6fe | 1444 | $hist = 0 if $hist < 0; |
1445 | for ($i=$#hist; $i>$end; $i--) { | |
1446 | print $OUT "$i: ",$hist[$i],"\n" | |
1447 | unless $hist[$i] =~ /^.?$/; | |
1448 | }; | |
1449 | next CMD; }; | |
055fd3a9 GS |
1450 | $cmd =~ /^(?:man|(?:perl)?doc)\b(?:\s+([^(]*))?$/ && do { |
1451 | runman($1); | |
1452 | next CMD; }; | |
b9b857e2 IZ |
1453 | $cmd =~ s/^p$/print {\$DB::OUT} \$_/; |
1454 | $cmd =~ s/^p\b/print {\$DB::OUT} /; | |
3dcd9d33 GS |
1455 | $cmd =~ s/^=\s*// && do { |
1456 | my @keys; | |
1457 | if (length $cmd == 0) { | |
1458 | @keys = sort keys %alias; | |
1459 | } | |
1460 | elsif (my($k,$v) = ($cmd =~ /^(\S+)\s+(\S.*)/)) { | |
1461 | # can't use $_ or kill //g state | |
1462 | for my $x ($k, $v) { $x =~ s/\a/\\a/g } | |
1463 | $alias{$k} = "s\a$k\a$v\a"; | |
1464 | # squelch the sigmangler | |
1465 | local $SIG{__DIE__}; | |
1466 | local $SIG{__WARN__}; | |
1467 | unless (eval "sub { s\a$k\a$v\a }; 1") { | |
1468 | print $OUT "Can't alias $k to $v: $@\n"; | |
1469 | delete $alias{$k}; | |
1470 | next CMD; | |
1471 | } | |
1472 | @keys = ($k); | |
1473 | } | |
1474 | else { | |
1475 | @keys = ($cmd); | |
1476 | } | |
1477 | for my $k (@keys) { | |
1478 | if ((my $v = $alias{$k}) =~ s\as\a$k\a(.*)\a$\a1\a) { | |
1479 | print $OUT "$k\t= $1\n"; | |
1480 | } | |
1481 | elsif (defined $alias{$k}) { | |
d338d6fe | 1482 | print $OUT "$k\t$alias{$k}\n"; |
3dcd9d33 GS |
1483 | } |
1484 | else { | |
1485 | print "No alias for $k\n"; | |
1486 | } | |
1487 | } | |
d338d6fe | 1488 | next CMD; }; |
5bad0d9e PS |
1489 | $cmd =~ /^\@\s*(.*\S)/ && do { |
1490 | if (open my $fh, $1) { | |
1491 | push @cmdfhs, $fh; | |
1492 | } | |
1493 | else { | |
1494 | &warn("Can't execute `$1': $!\n"); | |
1495 | } | |
1496 | next CMD; }; | |
d338d6fe | 1497 | $cmd =~ /^\|\|?\s*[^|]/ && do { |
1498 | if ($pager =~ /^\|/) { | |
1499 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); | |
1500 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); | |
1501 | } else { | |
1502 | open(SAVEOUT,">&OUT") || &warn("Can't save DB::OUT"); | |
1503 | } | |
055fd3a9 | 1504 | fix_less(); |
d338d6fe | 1505 | unless ($piped=open(OUT,$pager)) { |
1506 | &warn("Can't pipe output to `$pager'"); | |
1507 | if ($pager =~ /^\|/) { | |
055fd3a9 GS |
1508 | open(OUT,">&STDOUT") # XXX: lost message |
1509 | || &warn("Can't restore DB::OUT"); | |
d338d6fe | 1510 | open(STDOUT,">&SAVEOUT") |
1511 | || &warn("Can't restore STDOUT"); | |
1512 | close(SAVEOUT); | |
1513 | } else { | |
055fd3a9 GS |
1514 | open(OUT,">&STDOUT") # XXX: lost message |
1515 | || &warn("Can't restore DB::OUT"); | |
d338d6fe | 1516 | } |
1517 | next CMD; | |
1518 | } | |
77fb7b16 | 1519 | $SIG{PIPE}= \&DB::catch if $pager =~ /^\|/ |
055fd3a9 | 1520 | && ("" eq $SIG{PIPE} || "DEFAULT" eq $SIG{PIPE}); |
d338d6fe | 1521 | $selected= select(OUT); |
1522 | $|= 1; | |
1523 | select( $selected ), $selected= "" unless $cmd =~ /^\|\|/; | |
1524 | $cmd =~ s/^\|+\s*//; | |
055fd3a9 GS |
1525 | redo PIPE; |
1526 | }; | |
d338d6fe | 1527 | # XXX Local variants do not work! |
6027b9a3 | 1528 | $cmd =~ s/^t\s/\$DB::trace |= 1;\n/; |
d338d6fe | 1529 | $cmd =~ s/^s\s/\$DB::single = 1;\n/ && do {$laststep = 's'}; |
1530 | $cmd =~ s/^n\s/\$DB::single = 2;\n/ && do {$laststep = 'n'}; | |
1531 | } # PIPE: | |
d338d6fe | 1532 | $evalarg = "\$^D = \$^D | \$DB::db_stop;\n$cmd"; &eval; |
1533 | if ($onetimeDump) { | |
1534 | $onetimeDump = undef; | |
3ae893bd | 1535 | $onetimedumpDepth = undef; |
f36776d9 | 1536 | } elsif ($term_pid == $$) { |
d338d6fe | 1537 | print $OUT "\n"; |
1538 | } | |
1539 | } continue { # CMD: | |
1540 | if ($piped) { | |
1541 | if ($pager =~ /^\|/) { | |
055fd3a9 GS |
1542 | $? = 0; |
1543 | # we cannot warn here: the handle is missing --tchrist | |
1544 | close(OUT) || print SAVEOUT "\nCan't close DB::OUT\n"; | |
1545 | ||
1546 | # most of the $? crud was coping with broken cshisms | |
1547 | if ($?) { | |
1548 | print SAVEOUT "Pager `$pager' failed: "; | |
1549 | if ($? == -1) { | |
1550 | print SAVEOUT "shell returned -1\n"; | |
1551 | } elsif ($? >> 8) { | |
1552 | print SAVEOUT | |
1553 | ( $? & 127 ) ? " (SIG#".($?&127).")" : "", | |
1554 | ( $? & 128 ) ? " -- core dumped" : "", "\n"; | |
1555 | } else { | |
1556 | print SAVEOUT "status ", ($? >> 8), "\n"; | |
1557 | } | |
1558 | } | |
1559 | ||
d338d6fe | 1560 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); |
1561 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); | |
055fd3a9 | 1562 | $SIG{PIPE} = "DEFAULT" if $SIG{PIPE} eq \&DB::catch; |
d338d6fe | 1563 | # Will stop ignoring SIGPIPE if done like nohup(1) |
1564 | # does SIGINT but Perl doesn't give us a choice. | |
1565 | } else { | |
1566 | open(OUT,">&SAVEOUT") || &warn("Can't restore DB::OUT"); | |
1567 | } | |
1568 | close(SAVEOUT); | |
1569 | select($selected), $selected= "" unless $selected eq ""; | |
1570 | $piped= ""; | |
1571 | } | |
1572 | } # CMD: | |
20928eff | 1573 | $fall_off_end = 1 unless defined $cmd; # Emulate `q' on EOF |
e63173ce IZ |
1574 | foreach $evalarg (@$post) { |
1575 | &eval; | |
1576 | } | |
d338d6fe | 1577 | } # if ($single || $signal) |
22fae026 | 1578 | ($@, $!, $^E, $,, $/, $\, $^W) = @saved; |
d338d6fe | 1579 | (); |
1580 | } | |
1581 | ||
1582 | # The following code may be executed now: | |
1583 | # BEGIN {warn 4} | |
1584 | ||
1585 | sub sub { | |
ee971a18 | 1586 | my ($al, $ret, @ret) = ""; |
7d4a81e5 IZ |
1587 | if (length($sub) > 10 && substr($sub, -10, 10) eq '::AUTOLOAD') { |
1588 | $al = " for $$sub"; | |
ee971a18 | 1589 | } |
f8b5b99c IZ |
1590 | local $stack_depth = $stack_depth + 1; # Protect from non-local exits |
1591 | $#stack = $stack_depth; | |
1592 | $stack[-1] = $single; | |
d338d6fe | 1593 | $single &= 1; |
f8b5b99c | 1594 | $single |= 4 if $stack_depth == $deep; |
04fb8f4b | 1595 | ($frame & 4 |
f1583d8f | 1596 | ? ( print_lineinfo(' ' x ($stack_depth - 1), "in "), |
04fb8f4b IZ |
1597 | # Why -1? But it works! :-( |
1598 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) | |
f1583d8f | 1599 | : print_lineinfo(' ' x ($stack_depth - 1), "entering $sub$al\n")) if $frame; |
d338d6fe | 1600 | if (wantarray) { |
1601 | @ret = &$sub; | |
f8b5b99c | 1602 | $single |= $stack[$stack_depth--]; |
36477c24 | 1603 | ($frame & 4 |
f1583d8f | 1604 | ? ( print_lineinfo(' ' x $stack_depth, "out "), |
36477c24 | 1605 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f1583d8f | 1606 | : print_lineinfo(' ' x $stack_depth, "exited $sub$al\n")) if $frame & 2; |
f8b5b99c IZ |
1607 | if ($doret eq $stack_depth or $frame & 16) { |
1608 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); | |
1609 | print $fh ' ' x $stack_depth if $frame & 16; | |
7ea36084 IZ |
1610 | print $fh "list context return from $sub:\n"; |
1611 | dumpit($fh, \@ret ); | |
1612 | $doret = -2; | |
1613 | } | |
d338d6fe | 1614 | @ret; |
1615 | } else { | |
fb73857a | 1616 | if (defined wantarray) { |
1617 | $ret = &$sub; | |
1618 | } else { | |
1619 | &$sub; undef $ret; | |
1620 | }; | |
f8b5b99c | 1621 | $single |= $stack[$stack_depth--]; |
36477c24 | 1622 | ($frame & 4 |
f1583d8f | 1623 | ? ( print_lineinfo(' ' x $stack_depth, "out "), |
36477c24 | 1624 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f1583d8f | 1625 | : print_lineinfo(' ' x $stack_depth, "exited $sub$al\n")) if $frame & 2; |
f8b5b99c IZ |
1626 | if ($doret eq $stack_depth or $frame & 16 and defined wantarray) { |
1627 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); | |
1628 | print $fh (' ' x $stack_depth) if $frame & 16; | |
7ea36084 IZ |
1629 | print $fh (defined wantarray |
1630 | ? "scalar context return from $sub: " | |
1631 | : "void context return from $sub\n"); | |
1632 | dumpit( $fh, $ret ) if defined wantarray; | |
1633 | $doret = -2; | |
1634 | } | |
d338d6fe | 1635 | $ret; |
1636 | } | |
1637 | } | |
1638 | ||
f1583d8f IZ |
1639 | ### The API section |
1640 | ||
1641 | ### Functions with multiple modes of failure die on error, the rest | |
1642 | ### returns FALSE on error. | |
1643 | ### User-interface functions cmd_* output error message. | |
1644 | ||
1645 | sub break_on_load { | |
1646 | my $file = shift; | |
1647 | $break_on_load{$file} = 1; | |
1648 | $had_breakpoints{$file} |= 1; | |
1649 | } | |
1650 | ||
1651 | sub report_break_on_load { | |
1652 | sort keys %break_on_load; | |
1653 | } | |
1654 | ||
1655 | sub cmd_b_load { | |
1656 | my $file = shift; | |
1657 | my @files; | |
1658 | { | |
1659 | push @files, $file; | |
1660 | push @files, $::INC{$file} if $::INC{$file}; | |
1661 | $file .= '.pm', redo unless $file =~ /\./; | |
1662 | } | |
1663 | break_on_load($_) for @files; | |
04e43a21 | 1664 | @files = report_break_on_load; |
f1583d8f IZ |
1665 | print $OUT "Will stop on load of `@files'.\n"; |
1666 | } | |
1667 | ||
1668 | $filename_error = ''; | |
1669 | ||
1670 | sub breakable_line { | |
1671 | my ($from, $to) = @_; | |
1672 | my $i = $from; | |
1673 | if (@_ >= 2) { | |
1674 | my $delta = $from < $to ? +1 : -1; | |
1675 | my $limit = $delta > 0 ? $#dbline : 1; | |
1676 | $limit = $to if ($limit - $to) * $delta > 0; | |
1677 | $i += $delta while $dbline[$i] == 0 and ($limit - $i) * $delta > 0; | |
1678 | } | |
1679 | return $i unless $dbline[$i] == 0; | |
1680 | my ($pl, $upto) = ('', ''); | |
1681 | ($pl, $upto) = ('s', "..$to") if @_ >=2 and $from != $to; | |
1682 | die "Line$pl $from$upto$filename_error not breakable\n"; | |
1683 | } | |
1684 | ||
1685 | sub breakable_line_in_filename { | |
1686 | my ($f) = shift; | |
1687 | local *dbline = $main::{'_<' . $f}; | |
1688 | local $filename_error = " of `$f'"; | |
1689 | breakable_line(@_); | |
1690 | } | |
1691 | ||
1692 | sub break_on_line { | |
1693 | my ($i, $cond) = @_; | |
1694 | $cond = 1 unless @_ >= 2; | |
1695 | my $inii = $i; | |
1696 | my $after = ''; | |
1697 | my $pl = ''; | |
1698 | die "Line $i$filename_error not breakable.\n" if $dbline[$i] == 0; | |
1699 | $had_breakpoints{$filename} |= 1; | |
22c4a518 DD |
1700 | if ($dbline{$i}) { $dbline{$i} =~ s/^[^\0]*/$cond/; } |
1701 | else { $dbline{$i} = $cond; } | |
f1583d8f IZ |
1702 | } |
1703 | ||
1704 | sub cmd_b_line { | |
1705 | eval { break_on_line(@_); 1 } or print $OUT $@ and return; | |
1706 | } | |
1707 | ||
1708 | sub break_on_filename_line { | |
1709 | my ($f, $i, $cond) = @_; | |
1710 | $cond = 1 unless @_ >= 3; | |
1711 | local *dbline = $main::{'_<' . $f}; | |
1712 | local $filename_error = " of `$f'"; | |
1713 | local $filename = $f; | |
1714 | break_on_line($i, $cond); | |
1715 | } | |
1716 | ||
1717 | sub break_on_filename_line_range { | |
1718 | my ($f, $from, $to, $cond) = @_; | |
1719 | my $i = breakable_line_in_filename($f, $from, $to); | |
1720 | $cond = 1 unless @_ >= 3; | |
1721 | break_on_filename_line($f,$i,$cond); | |
1722 | } | |
1723 | ||
1724 | sub subroutine_filename_lines { | |
1725 | my ($subname,$cond) = @_; | |
1726 | # Filename below can contain ':' | |
1727 | find_sub($subname) =~ /^(.*):(\d+)-(\d+)$/; | |
1728 | } | |
1729 | ||
1730 | sub break_subroutine { | |
1731 | my $subname = shift; | |
1732 | my ($file,$s,$e) = subroutine_filename_lines($subname) or | |
1733 | die "Subroutine $subname not found.\n"; | |
1734 | $cond = 1 unless @_ >= 2; | |
1735 | break_on_filename_line_range($file,$s,$e,@_); | |
1736 | } | |
1737 | ||
1738 | sub cmd_b_sub { | |
1739 | my ($subname,$cond) = @_; | |
1740 | $cond = 1 unless @_ >= 2; | |
1741 | unless (ref $subname eq 'CODE') { | |
1742 | $subname =~ s/\'/::/g; | |
1743 | my $s = $subname; | |
1744 | $subname = "${'package'}::" . $subname | |
1745 | unless $subname =~ /::/; | |
1746 | $subname = "CORE::GLOBAL::$s" | |
1747 | if not defined &$subname and $s !~ /::/ and defined &{"CORE::GLOBAL::$s"}; | |
1748 | $subname = "main".$subname if substr($subname,0,2) eq "::"; | |
1749 | } | |
1750 | eval { break_subroutine($subname,$cond); 1 } or print $OUT $@ and return; | |
1751 | } | |
1752 | ||
1753 | sub cmd_stop { # As on ^C, but not signal-safy. | |
1754 | $signal = 1; | |
1755 | } | |
1756 | ||
1757 | sub delete_breakpoint { | |
1758 | my $i = shift; | |
1759 | die "Line $i not breakable.\n" if $dbline[$i] == 0; | |
1760 | $dbline{$i} =~ s/^[^\0]*//; | |
1761 | delete $dbline{$i} if $dbline{$i} eq ''; | |
1762 | } | |
1763 | ||
1764 | sub cmd_d { | |
1765 | my $i = shift; | |
1766 | eval { delete_breakpoint $i; 1 } or print $OUT $@ and return; | |
1767 | } | |
1768 | ||
1769 | ### END of the API section | |
1770 | ||
d338d6fe | 1771 | sub save { |
22fae026 | 1772 | @saved = ($@, $!, $^E, $,, $/, $\, $^W); |
d338d6fe | 1773 | $, = ""; $/ = "\n"; $\ = ""; $^W = 0; |
1774 | } | |
1775 | ||
f1583d8f IZ |
1776 | sub print_lineinfo { |
1777 | resetterm(1) if $LINEINFO eq $OUT and $term_pid != $$; | |
1778 | print $LINEINFO @_; | |
1779 | } | |
1780 | ||
d338d6fe | 1781 | # The following takes its argument via $evalarg to preserve current @_ |
1782 | ||
55497cff | 1783 | sub postponed_sub { |
1784 | my $subname = shift; | |
1d06cb2d | 1785 | if ($postponed{$subname} =~ s/^break\s([+-]?\d+)\s+if\s//) { |
55497cff | 1786 | my $offset = $1 || 0; |
1787 | # Filename below can contain ':' | |
1d06cb2d | 1788 | my ($file,$i) = (find_sub($subname) =~ /^(.*):(\d+)-.*$/); |
55497cff | 1789 | if ($i) { |
fb73857a | 1790 | $i += $offset; |
8ebc5c01 | 1791 | local *dbline = $main::{'_<' . $file}; |
55497cff | 1792 | local $^W = 0; # != 0 is magical below |
3fbd6552 | 1793 | $had_breakpoints{$file} |= 1; |
55497cff | 1794 | my $max = $#dbline; |
1795 | ++$i until $dbline[$i] != 0 or $i >= $max; | |
1796 | $dbline{$i} = delete $postponed{$subname}; | |
1797 | } else { | |
1798 | print $OUT "Subroutine $subname not found.\n"; | |
1799 | } | |
1800 | return; | |
1801 | } | |
1d06cb2d | 1802 | elsif ($postponed{$subname} eq 'compile') { $signal = 1 } |
36477c24 | 1803 | #print $OUT "In postponed_sub for `$subname'.\n"; |
55497cff | 1804 | } |
1805 | ||
1806 | sub postponed { | |
3aefca04 IZ |
1807 | if ($ImmediateStop) { |
1808 | $ImmediateStop = 0; | |
1809 | $signal = 1; | |
1810 | } | |
55497cff | 1811 | return &postponed_sub |
1812 | unless ref \$_[0] eq 'GLOB'; # A subroutine is compiled. | |
1813 | # Cannot be done before the file is compiled | |
1814 | local *dbline = shift; | |
1815 | my $filename = $dbline; | |
1816 | $filename =~ s/^_<//; | |
36477c24 | 1817 | $signal = 1, print $OUT "'$filename' loaded...\n" |
1818 | if $break_on_load{$filename}; | |
f1583d8f | 1819 | print_lineinfo(' ' x $stack_depth, "Package $filename.\n") if $frame; |
0c395bd7 | 1820 | return unless $postponed_file{$filename}; |
3fbd6552 | 1821 | $had_breakpoints{$filename} |= 1; |
55497cff | 1822 | #%dbline = %{$postponed_file{$filename}}; # Cannot be done: unsufficient magic |
1823 | my $key; | |
1824 | for $key (keys %{$postponed_file{$filename}}) { | |
055fd3a9 | 1825 | $dbline{$key} = ${$postponed_file{$filename}}{$key}; |
54d04a52 | 1826 | } |
0c395bd7 | 1827 | delete $postponed_file{$filename}; |
54d04a52 IZ |
1828 | } |
1829 | ||
d338d6fe | 1830 | sub dumpit { |
7ea36084 | 1831 | local ($savout) = select(shift); |
ee971a18 | 1832 | my $osingle = $single; |
1833 | my $otrace = $trace; | |
1834 | $single = $trace = 0; | |
1835 | local $frame = 0; | |
1836 | local $doret = -2; | |
1837 | unless (defined &main::dumpValue) { | |
1838 | do 'dumpvar.pl'; | |
1839 | } | |
d338d6fe | 1840 | if (defined &main::dumpValue) { |
d03c2a1b MJD |
1841 | my $v = shift; |
1842 | my $maxdepth = shift || $option{dumpDepth}; | |
1843 | $maxdepth = -1 unless defined $maxdepth; # -1 means infinite depth | |
1844 | &main::dumpValue($v, $maxdepth); | |
d338d6fe | 1845 | } else { |
1846 | print $OUT "dumpvar.pl not available.\n"; | |
1847 | } | |
ee971a18 | 1848 | $single = $osingle; |
1849 | $trace = $otrace; | |
d338d6fe | 1850 | select ($savout); |
1851 | } | |
1852 | ||
36477c24 | 1853 | # Tied method do not create a context, so may get wrong message: |
1854 | ||
55497cff | 1855 | sub print_trace { |
1856 | my $fh = shift; | |
f1583d8f | 1857 | resetterm(1) if $fh eq $LINEINFO and $LINEINFO eq $OUT and $term_pid != $$; |
36477c24 | 1858 | my @sub = dump_trace($_[0] + 1, $_[1]); |
1859 | my $short = $_[2]; # Print short report, next one for sub name | |
1d06cb2d | 1860 | my $s; |
55497cff | 1861 | for ($i=0; $i <= $#sub; $i++) { |
1862 | last if $signal; | |
1863 | local $" = ', '; | |
1864 | my $args = defined $sub[$i]{args} | |
1865 | ? "(@{ $sub[$i]{args} })" | |
1866 | : '' ; | |
1d06cb2d IZ |
1867 | $args = (substr $args, 0, $maxtrace - 3) . '...' |
1868 | if length $args > $maxtrace; | |
36477c24 | 1869 | my $file = $sub[$i]{file}; |
1870 | $file = $file eq '-e' ? $file : "file `$file'" unless $short; | |
1d06cb2d IZ |
1871 | $s = $sub[$i]{sub}; |
1872 | $s = (substr $s, 0, $maxtrace - 3) . '...' if length $s > $maxtrace; | |
36477c24 | 1873 | if ($short) { |
1d06cb2d | 1874 | my $sub = @_ >= 4 ? $_[3] : $s; |
36477c24 | 1875 | print $fh "$sub[$i]{context}=$sub$args from $file:$sub[$i]{line}\n"; |
1876 | } else { | |
1d06cb2d | 1877 | print $fh "$sub[$i]{context} = $s$args" . |
36477c24 | 1878 | " called from $file" . |
1879 | " line $sub[$i]{line}\n"; | |
1880 | } | |
55497cff | 1881 | } |
1882 | } | |
1883 | ||
1884 | sub dump_trace { | |
1885 | my $skip = shift; | |
36477c24 | 1886 | my $count = shift || 1e9; |
1887 | $skip++; | |
1888 | $count += $skip; | |
55497cff | 1889 | my ($p,$file,$line,$sub,$h,$args,$e,$r,@a,@sub,$context); |
04fb8f4b IZ |
1890 | my $nothard = not $frame & 8; |
1891 | local $frame = 0; # Do not want to trace this. | |
1892 | my $otrace = $trace; | |
1893 | $trace = 0; | |
55497cff | 1894 | for ($i = $skip; |
36477c24 | 1895 | $i < $count and ($p,$file,$line,$sub,$h,$context,$e,$r) = caller($i); |
55497cff | 1896 | $i++) { |
1897 | @a = (); | |
1898 | for $arg (@args) { | |
04fb8f4b IZ |
1899 | my $type; |
1900 | if (not defined $arg) { | |
1901 | push @a, "undef"; | |
1902 | } elsif ($nothard and tied $arg) { | |
1903 | push @a, "tied"; | |
1904 | } elsif ($nothard and $type = ref $arg) { | |
1905 | push @a, "ref($type)"; | |
1906 | } else { | |
1907 | local $_ = "$arg"; # Safe to stringify now - should not call f(). | |
1908 | s/([\'\\])/\\$1/g; | |
1909 | s/(.*)/'$1'/s | |
1910 | unless /^(?: -?[\d.]+ | \*[\w:]* )$/x; | |
1911 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; | |
1912 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; | |
1913 | push(@a, $_); | |
1914 | } | |
55497cff | 1915 | } |
7ea36084 | 1916 | $context = $context ? '@' : (defined $context ? "\$" : '.'); |
55497cff | 1917 | $args = $h ? [@a] : undef; |
1918 | $e =~ s/\n\s*\;\s*\Z// if $e; | |
1d06cb2d | 1919 | $e =~ s/([\\\'])/\\$1/g if $e; |
55497cff | 1920 | if ($r) { |
1921 | $sub = "require '$e'"; | |
1922 | } elsif (defined $r) { | |
1923 | $sub = "eval '$e'"; | |
1924 | } elsif ($sub eq '(eval)') { | |
1925 | $sub = "eval {...}"; | |
1926 | } | |
1927 | push(@sub, {context => $context, sub => $sub, args => $args, | |
1928 | file => $file, line => $line}); | |
1929 | last if $signal; | |
1930 | } | |
04fb8f4b | 1931 | $trace = $otrace; |
55497cff | 1932 | @sub; |
1933 | } | |
1934 | ||
d338d6fe | 1935 | sub action { |
1936 | my $action = shift; | |
1937 | while ($action =~ s/\\$//) { | |
1938 | #print $OUT "+ "; | |
1939 | #$action .= "\n"; | |
1940 | $action .= &gets; | |
1941 | } | |
1942 | $action; | |
1943 | } | |
1944 | ||
055fd3a9 GS |
1945 | sub unbalanced { |
1946 | # i hate using globals! | |
1947 | $balanced_brace_re ||= qr{ | |
1948 | ^ \{ | |
1949 | (?: | |
1950 | (?> [^{}] + ) # Non-parens without backtracking | |
1951 | | | |
1952 | (??{ $balanced_brace_re }) # Group with matching parens | |
1953 | ) * | |
1954 | \} $ | |
1955 | }x; | |
1956 | return $_[0] !~ m/$balanced_brace_re/; | |
1957 | } | |
1958 | ||
d338d6fe | 1959 | sub gets { |
d338d6fe | 1960 | &readline("cont: "); |
1961 | } | |
1962 | ||
1963 | sub system { | |
1964 | # We save, change, then restore STDIN and STDOUT to avoid fork() since | |
055fd3a9 | 1965 | # some non-Unix systems can do system() but have problems with fork(). |
d338d6fe | 1966 | open(SAVEIN,"<&STDIN") || &warn("Can't save STDIN"); |
8ee058cb | 1967 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); |
d338d6fe | 1968 | open(STDIN,"<&IN") || &warn("Can't redirect STDIN"); |
1969 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); | |
055fd3a9 GS |
1970 | |
1971 | # XXX: using csh or tcsh destroys sigint retvals! | |
d338d6fe | 1972 | system(@_); |
1973 | open(STDIN,"<&SAVEIN") || &warn("Can't restore STDIN"); | |
1974 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); | |
055fd3a9 GS |
1975 | close(SAVEIN); |
1976 | close(SAVEOUT); | |
1977 | ||
1978 | ||
1979 | # most of the $? crud was coping with broken cshisms | |
1980 | if ($? >> 8) { | |
1981 | &warn("(Command exited ", ($? >> 8), ")\n"); | |
1982 | } elsif ($?) { | |
1983 | &warn( "(Command died of SIG#", ($? & 127), | |
1984 | (($? & 128) ? " -- core dumped" : "") , ")", "\n"); | |
1985 | } | |
1986 | ||
1987 | return $?; | |
1988 | ||
d338d6fe | 1989 | } |
1990 | ||
1991 | sub setterm { | |
54d04a52 | 1992 | local $frame = 0; |
ee971a18 | 1993 | local $doret = -2; |
ee971a18 | 1994 | eval { require Term::ReadLine } or die $@; |
d338d6fe | 1995 | if ($notty) { |
1996 | if ($tty) { | |
f1583d8f IZ |
1997 | my ($i, $o) = split $tty, /,/; |
1998 | $o = $i unless defined $o; | |
1999 | open(IN,"<$i") or die "Cannot open TTY `$i' for read: $!"; | |
2000 | open(OUT,">$o") or die "Cannot open TTY `$o' for write: $!"; | |
d338d6fe | 2001 | $IN = \*IN; |
2002 | $OUT = \*OUT; | |
2003 | my $sel = select($OUT); | |
2004 | $| = 1; | |
2005 | select($sel); | |
2006 | } else { | |
3dcd9d33 | 2007 | eval "require Term::Rendezvous;" or die; |
d338d6fe | 2008 | my $rv = $ENV{PERLDB_NOTTY} || "/tmp/perldbtty$$"; |
2009 | my $term_rv = new Term::Rendezvous $rv; | |
2010 | $IN = $term_rv->IN; | |
2011 | $OUT = $term_rv->OUT; | |
2012 | } | |
2013 | } | |
f1583d8f IZ |
2014 | if ($term_pid eq '-1') { # In a TTY with another debugger |
2015 | resetterm(2); | |
2016 | } | |
d338d6fe | 2017 | if (!$rl) { |
2018 | $term = new Term::ReadLine::Stub 'perldb', $IN, $OUT; | |
2019 | } else { | |
2020 | $term = new Term::ReadLine 'perldb', $IN, $OUT; | |
2021 | ||
a737e074 CS |
2022 | $rl_attribs = $term->Attribs; |
2023 | $rl_attribs->{basic_word_break_characters} .= '-:+/*,[])}' | |
2024 | if defined $rl_attribs->{basic_word_break_characters} | |
2025 | and index($rl_attribs->{basic_word_break_characters}, ":") == -1; | |
2026 | $rl_attribs->{special_prefixes} = '$@&%'; | |
2027 | $rl_attribs->{completer_word_break_characters} .= '$@&%'; | |
2028 | $rl_attribs->{completion_function} = \&db_complete; | |
d338d6fe | 2029 | } |
2030 | $LINEINFO = $OUT unless defined $LINEINFO; | |
2031 | $lineinfo = $console unless defined $lineinfo; | |
2032 | $term->MinLine(2); | |
54d04a52 IZ |
2033 | if ($term->Features->{setHistory} and "@hist" ne "?") { |
2034 | $term->SetHistory(@hist); | |
2035 | } | |
7a2e2cd6 | 2036 | ornaments($ornaments) if defined $ornaments; |
f36776d9 IZ |
2037 | $term_pid = $$; |
2038 | } | |
2039 | ||
f1583d8f IZ |
2040 | # Example get_fork_TTY functions |
2041 | sub xterm_get_fork_TTY { | |
2042 | (my $name = $0) =~ s,^.*[/\\],,s; | |
2043 | open XT, qq[3>&1 xterm -title "Daughter Perl debugger $pids $name" -e sh -c 'tty 1>&3;\ | |
f36776d9 | 2044 | sleep 10000000' |]; |
f1583d8f IZ |
2045 | my $tty = <XT>; |
2046 | chomp $tty; | |
2047 | $pidprompt = ''; # Shown anyway in titlebar | |
2048 | return $tty; | |
2049 | } | |
2050 | ||
c1051fcf | 2051 | # This example function resets $IN, $OUT itself |
f1583d8f | 2052 | sub os2_get_fork_TTY { |
c1051fcf | 2053 | local $^F = 40; # XXXX Fixme! |
f1583d8f IZ |
2054 | my ($in1, $out1, $in2, $out2); |
2055 | # Having -d in PERL5OPT would lead to a disaster... | |
2056 | local $ENV{PERL5OPT} = $ENV{PERL5OPT} if $ENV{PERL5OPT}; | |
2057 | $ENV{PERL5OPT} =~ s/(?:^|(?<=\s))-d\b// if $ENV{PERL5OPT}; | |
2058 | $ENV{PERL5OPT} =~ s/(?:^|(?<=\s))-d\B/-/ if $ENV{PERL5OPT}; | |
c1051fcf | 2059 | print $OUT "Making kid PERL5OPT->`$ENV{PERL5OPT}'.\n" if $ENV{PERL5OPT}; |
f1583d8f | 2060 | (my $name = $0) =~ s,^.*[/\\],,s; |
c1051fcf IZ |
2061 | my @args; |
2062 | if ( pipe $in1, $out1 and pipe $in2, $out2 | |
f1583d8f | 2063 | # system P_SESSION will fail if there is another process |
04e43a21 | 2064 | # in the same session with a "dependent" asynchronous child session. |
c1051fcf IZ |
2065 | and @args = ($rl, fileno $in1, fileno $out2, |
2066 | "Daughter Perl debugger $pids $name") and | |
2067 | (($kpid = CORE::system 4, $^X, '-we', <<'ES', @args) >= 0 # P_SESSION | |
f1583d8f IZ |
2068 | use OS2::Process; |
2069 | ||
c1051fcf | 2070 | my ($rl, $in) = (shift, shift); # Read from $in and pass through |
f1583d8f IZ |
2071 | set_title pop; |
2072 | system P_NOWAIT, $^X, '-we', <<EOS or die "Cannot start a grandkid"; | |
2073 | open IN, '<&=$in' or die "open <&=$in: \$!"; | |
2074 | \$| = 1; print while sysread IN, \$_, 1<<16; | |
2075 | EOS | |
2076 | ||
2077 | my $out = shift; | |
2078 | open OUT, ">&=$out" or die "Cannot open &=$out for writing: $!"; | |
2079 | select OUT; $| = 1; | |
c1051fcf IZ |
2080 | require Term::ReadKey if $rl; |
2081 | Term::ReadKey::ReadMode(4) if $rl; # Nodelay on kbd. Pipe is automatically nodelay... | |
2082 | print while sysread STDIN, $_, 1<<($rl ? 16 : 0); | |
f1583d8f | 2083 | ES |
c1051fcf | 2084 | or warn "system P_SESSION: $!, $^E" and 0) |
f1583d8f | 2085 | and close $in1 and close $out2 ) { |
c1051fcf | 2086 | $pidprompt = ''; # Shown anyway in titlebar |
f1583d8f IZ |
2087 | reset_IN_OUT($in2, $out1); |
2088 | $tty = '*reset*'; | |
2089 | return ''; # Indicate that reset_IN_OUT is called | |
2090 | } | |
2091 | return; | |
2092 | } | |
2093 | ||
2094 | sub create_IN_OUT { # Create a window with IN/OUT handles redirected there | |
2095 | my $in = &get_fork_TTY if defined &get_fork_TTY; | |
2096 | $in = $fork_TTY if defined $fork_TTY; # Backward compatibility | |
2097 | if (not defined $in) { | |
2098 | my $why = shift; | |
2099 | print_help(<<EOP) if $why == 1; | |
2100 | I<#########> Forked, but do not know how to create a new B<TTY>. I<#########> | |
2101 | EOP | |
2102 | print_help(<<EOP) if $why == 2; | |
2103 | I<#########> Daughter session, do not know how to change a B<TTY>. I<#########> | |
04e43a21 | 2104 | This may be an asynchronous session, so the parent debugger may be active. |
f1583d8f IZ |
2105 | EOP |
2106 | print_help(<<EOP) if $why != 4; | |
2107 | Since two debuggers fight for the same TTY, input is severely entangled. | |
2108 | ||
2109 | EOP | |
405ff068 | 2110 | print_help(<<EOP); |
f1583d8f IZ |
2111 | I know how to switch the output to a different window in xterms |
2112 | and OS/2 consoles only. For a manual switch, put the name of the created I<TTY> | |
2113 | in B<\$DB::fork_TTY>, or define a function B<DB::get_fork_TTY()> returning this. | |
2114 | ||
405ff068 IZ |
2115 | On I<UNIX>-like systems one can get the name of a I<TTY> for the given window |
2116 | by typing B<tty>, and disconnect the I<shell> from I<TTY> by B<sleep 1000000>. | |
f1583d8f | 2117 | |
405ff068 | 2118 | EOP |
f1583d8f IZ |
2119 | } elsif ($in ne '') { |
2120 | TTY($in); | |
c1051fcf IZ |
2121 | } else { |
2122 | $console = ''; # Indicate no need to open-from-the-console | |
f36776d9 | 2123 | } |
f1583d8f IZ |
2124 | undef $fork_TTY; |
2125 | } | |
2126 | ||
2127 | sub resetterm { # We forked, so we need a different TTY | |
2128 | my $in = shift; | |
2129 | my $systemed = $in > 1 ? '-' : ''; | |
2130 | if ($pids) { | |
2131 | $pids =~ s/\]/$systemed->$$]/; | |
2132 | } else { | |
2133 | $pids = "[$term_pid->$$]"; | |
2134 | } | |
2135 | $pidprompt = $pids; | |
2136 | $term_pid = $$; | |
2137 | return unless $CreateTTY & $in; | |
2138 | create_IN_OUT($in); | |
d338d6fe | 2139 | } |
2140 | ||
2141 | sub readline { | |
0c01eb4a | 2142 | local $.; |
54d04a52 IZ |
2143 | if (@typeahead) { |
2144 | my $left = @typeahead; | |
2145 | my $got = shift @typeahead; | |
2146 | print $OUT "auto(-$left)", shift, $got, "\n"; | |
2147 | $term->AddHistory($got) | |
2148 | if length($got) > 1 and defined $term->Features->{addHistory}; | |
2149 | return $got; | |
2150 | } | |
d338d6fe | 2151 | local $frame = 0; |
ee971a18 | 2152 | local $doret = -2; |
5bad0d9e PS |
2153 | while (@cmdfhs) { |
2154 | my $line = CORE::readline($cmdfhs[-1]); | |
2155 | defined $line ? (print $OUT ">> $line" and return $line) | |
2156 | : close pop @cmdfhs; | |
2157 | } | |
363b4d59 | 2158 | if (ref $OUT and UNIVERSAL::isa($OUT, 'IO::Socket::INET')) { |
e4e99f0d | 2159 | $OUT->write(join('', @_)); |
363b4d59 | 2160 | my $stuff; |
055fd3a9 | 2161 | $IN->recv( $stuff, 2048 ); # XXX: what's wrong with sysread? |
363b4d59 GT |
2162 | $stuff; |
2163 | } | |
2164 | else { | |
2165 | $term->readline(@_); | |
2166 | } | |
d338d6fe | 2167 | } |
2168 | ||
2169 | sub dump_option { | |
2170 | my ($opt, $val)= @_; | |
55497cff | 2171 | $val = option_val($opt,'N/A'); |
2172 | $val =~ s/([\\\'])/\\$1/g; | |
2173 | printf $OUT "%20s = '%s'\n", $opt, $val; | |
2174 | } | |
2175 | ||
2176 | sub option_val { | |
2177 | my ($opt, $default)= @_; | |
2178 | my $val; | |
d338d6fe | 2179 | if (defined $optionVars{$opt} |
055fd3a9 GS |
2180 | and defined ${$optionVars{$opt}}) { |
2181 | $val = ${$optionVars{$opt}}; | |
d338d6fe | 2182 | } elsif (defined $optionAction{$opt} |
2183 | and defined &{$optionAction{$opt}}) { | |
2184 | $val = &{$optionAction{$opt}}(); | |
2185 | } elsif (defined $optionAction{$opt} | |
2186 | and not defined $option{$opt} | |
2187 | or defined $optionVars{$opt} | |
055fd3a9 | 2188 | and not defined ${$optionVars{$opt}}) { |
55497cff | 2189 | $val = $default; |
d338d6fe | 2190 | } else { |
2191 | $val = $option{$opt}; | |
2192 | } | |
600d99fa | 2193 | $val = $default unless defined $val; |
55497cff | 2194 | $val |
d338d6fe | 2195 | } |
2196 | ||
2197 | sub parse_options { | |
2198 | local($_)= @_; | |
055fd3a9 GS |
2199 | # too dangerous to let intuitive usage overwrite important things |
2200 | # defaultion should never be the default | |
2201 | my %opt_needs_val = map { ( $_ => 1 ) } qw{ | |
d03c2a1b | 2202 | dumpDepth arrayDepth hashDepth LineInfo maxTraceLen ornaments windowSize |
055fd3a9 GS |
2203 | pager quote ReadLine recallCommand RemotePort ShellBang TTY |
2204 | }; | |
2205 | while (length) { | |
2206 | my $val_defaulted; | |
2207 | s/^\s+// && next; | |
2208 | s/^(\w+)(\W?)// or print($OUT "Invalid option `$_'\n"), last; | |
d338d6fe | 2209 | my ($opt,$sep) = ($1,$2); |
2210 | my $val; | |
2211 | if ("?" eq $sep) { | |
2212 | print($OUT "Option query `$opt?' followed by non-space `$_'\n"), last | |
2213 | if /^\S/; | |
2214 | #&dump_option($opt); | |
2215 | } elsif ($sep !~ /\S/) { | |
055fd3a9 GS |
2216 | $val_defaulted = 1; |
2217 | $val = "1"; # this is an evil default; make 'em set it! | |
d338d6fe | 2218 | } elsif ($sep eq "=") { |
055fd3a9 GS |
2219 | |
2220 | if (s/ (["']) ( (?: \\. | (?! \1 ) [^\\] )* ) \1 //x) { | |
2221 | my $quote = $1; | |
2222 | ($val = $2) =~ s/\\([$quote\\])/$1/g; | |
2223 | } else { | |
2224 | s/^(\S*)//; | |
d338d6fe | 2225 | $val = $1; |
055fd3a9 GS |
2226 | print OUT qq(Option better cleared using $opt=""\n) |
2227 | unless length $val; | |
2228 | } | |
2229 | ||
d338d6fe | 2230 | } else { #{ to "let some poor schmuck bounce on the % key in B<vi>." |
2231 | my ($end) = "\\" . substr( ")]>}$sep", index("([<{",$sep), 1 ); #} | |
2232 | s/^(([^\\$end]|\\[\\$end])*)$end($|\s+)// or | |
2233 | print($OUT "Unclosed option value `$opt$sep$_'\n"), last; | |
055fd3a9 | 2234 | ($val = $1) =~ s/\\([\\$end])/$1/g; |
d338d6fe | 2235 | } |
055fd3a9 GS |
2236 | |
2237 | my $option; | |
2238 | my $matches = grep( /^\Q$opt/ && ($option = $_), @options ) | |
2239 | || grep( /^\Q$opt/i && ($option = $_), @options ); | |
2240 | ||
2241 | print($OUT "Unknown option `$opt'\n"), next unless $matches; | |
2242 | print($OUT "Ambiguous option `$opt'\n"), next if $matches > 1; | |
2243 | ||
2244 | if ($opt_needs_val{$option} && $val_defaulted) { | |
2245 | print $OUT "Option `$opt' is non-boolean. Use `O $option=VAL' to set, `O $option?' to query\n"; | |
2246 | next; | |
2247 | } | |
2248 | ||
2249 | $option{$option} = $val if defined $val; | |
2250 | ||
2251 | eval qq{ | |
2252 | local \$frame = 0; | |
2253 | local \$doret = -2; | |
2254 | require '$optionRequire{$option}'; | |
2255 | 1; | |
2256 | } || die # XXX: shouldn't happen | |
2257 | if defined $optionRequire{$option} && | |
2258 | defined $val; | |
2259 | ||
2260 | ${$optionVars{$option}} = $val | |
2261 | if defined $optionVars{$option} && | |
2262 | defined $val; | |
2263 | ||
2264 | &{$optionAction{$option}} ($val) | |
2265 | if defined $optionAction{$option} && | |
2266 | defined &{$optionAction{$option}} && | |
2267 | defined $val; | |
2268 | ||
2269 | # Not $rcfile | |
2270 | dump_option($option) unless $OUT eq \*STDERR; | |
d338d6fe | 2271 | } |
2272 | } | |
2273 | ||
54d04a52 IZ |
2274 | sub set_list { |
2275 | my ($stem,@list) = @_; | |
2276 | my $val; | |
055fd3a9 | 2277 | $ENV{"${stem}_n"} = @list; |
54d04a52 IZ |
2278 | for $i (0 .. $#list) { |
2279 | $val = $list[$i]; | |
2280 | $val =~ s/\\/\\\\/g; | |
ee971a18 | 2281 | $val =~ s/([\0-\37\177\200-\377])/"\\0x" . unpack('H2',$1)/eg; |
055fd3a9 | 2282 | $ENV{"${stem}_$i"} = $val; |
54d04a52 IZ |
2283 | } |
2284 | } | |
2285 | ||
2286 | sub get_list { | |
2287 | my $stem = shift; | |
2288 | my @list; | |
055fd3a9 | 2289 | my $n = delete $ENV{"${stem}_n"}; |
54d04a52 IZ |
2290 | my $val; |
2291 | for $i (0 .. $n - 1) { | |
055fd3a9 | 2292 | $val = delete $ENV{"${stem}_$i"}; |
54d04a52 IZ |
2293 | $val =~ s/\\((\\)|0x(..))/ $2 ? $2 : pack('H2', $3) /ge; |
2294 | push @list, $val; | |
2295 | } | |
2296 | @list; | |
2297 | } | |
2298 | ||
d338d6fe | 2299 | sub catch { |
2300 | $signal = 1; | |
4639966b | 2301 | return; # Put nothing on the stack - malloc/free land! |
d338d6fe | 2302 | } |
2303 | ||
2304 | sub warn { | |
2305 | my($msg)= join("",@_); | |
2306 | $msg .= ": $!\n" unless $msg =~ /\n$/; | |
2307 | print $OUT $msg; | |
2308 | } | |
2309 | ||
f1583d8f IZ |
2310 | sub reset_IN_OUT { |
2311 | my $switch_li = $LINEINFO eq $OUT; | |
2312 | if ($term and $term->Features->{newTTY}) { | |
2313 | ($IN, $OUT) = (shift, shift); | |
2314 | $term->newTTY($IN, $OUT); | |
2315 | } elsif ($term) { | |
2316 | &warn("Too late to set IN/OUT filehandles, enabled on next `R'!\n"); | |
2317 | } else { | |
2318 | ($IN, $OUT) = (shift, shift); | |
2319 | } | |
2320 | my $o = select $OUT; | |
2321 | $| = 1; | |
2322 | select $o; | |
2323 | $LINEINFO = $OUT if $switch_li; | |
2324 | } | |
2325 | ||
d338d6fe | 2326 | sub TTY { |
f36776d9 IZ |
2327 | if (@_ and $term and $term->Features->{newTTY}) { |
2328 | my ($in, $out) = shift; | |
2329 | if ($in =~ /,/) { | |
2330 | ($in, $out) = split /,/, $in, 2; | |
2331 | } else { | |
2332 | $out = $in; | |
2333 | } | |
2334 | open IN, $in or die "cannot open `$in' for read: $!"; | |
2335 | open OUT, ">$out" or die "cannot open `$out' for write: $!"; | |
f1583d8f | 2336 | reset_IN_OUT(\*IN,\*OUT); |
f36776d9 | 2337 | return $tty = $in; |
f1583d8f IZ |
2338 | } |
2339 | &warn("Too late to set TTY, enabled on next `R'!\n") if $term and @_; | |
2340 | # Useful if done through PERLDB_OPTS: | |
43c8efd8 | 2341 | $console = $tty = shift if @_; |
d338d6fe | 2342 | $tty or $console; |
2343 | } | |
2344 | ||
2345 | sub noTTY { | |
2346 | if ($term) { | |
43aed9ee | 2347 | &warn("Too late to set noTTY, enabled on next `R'!\n") if @_; |
d338d6fe | 2348 | } |
43aed9ee | 2349 | $notty = shift if @_; |
d338d6fe | 2350 | $notty; |
2351 | } | |
2352 | ||
2353 | sub ReadLine { | |
2354 | if ($term) { | |
43aed9ee | 2355 | &warn("Too late to set ReadLine, enabled on next `R'!\n") if @_; |
d338d6fe | 2356 | } |
43aed9ee | 2357 | $rl = shift if @_; |
d338d6fe | 2358 | $rl; |
2359 | } | |
2360 | ||
363b4d59 GT |
2361 | sub RemotePort { |
2362 | if ($term) { | |
2363 | &warn("Too late to set RemotePort, enabled on next 'R'!\n") if @_; | |
2364 | } | |
2365 | $remoteport = shift if @_; | |
2366 | $remoteport; | |
2367 | } | |
2368 | ||
a737e074 | 2369 | sub tkRunning { |
055fd3a9 | 2370 | if (${$term->Features}{tkRunning}) { |
a737e074 CS |
2371 | return $term->tkRunning(@_); |
2372 | } else { | |
2373 | print $OUT "tkRunning not supported by current ReadLine package.\n"; | |
2374 | 0; | |
2375 | } | |
2376 | } | |
2377 | ||
d338d6fe | 2378 | sub NonStop { |
2379 | if ($term) { | |
43aed9ee | 2380 | &warn("Too late to set up NonStop mode, enabled on next `R'!\n") if @_; |
d338d6fe | 2381 | } |
43aed9ee | 2382 | $runnonstop = shift if @_; |
d338d6fe | 2383 | $runnonstop; |
2384 | } | |
2385 | ||
2386 | sub pager { | |
2387 | if (@_) { | |
2388 | $pager = shift; | |
2389 | $pager="|".$pager unless $pager =~ /^(\+?\>|\|)/; | |
2390 | } | |
2391 | $pager; | |
2392 | } | |
2393 | ||
2394 | sub shellBang { | |
2395 | if (@_) { | |
2396 | $sh = quotemeta shift; | |
2397 | $sh .= "\\b" if $sh =~ /\w$/; | |
2398 | } | |
2399 | $psh = $sh; | |
2400 | $psh =~ s/\\b$//; | |
2401 | $psh =~ s/\\(.)/$1/g; | |
d338d6fe | 2402 | $psh; |
2403 | } | |
2404 | ||
7a2e2cd6 | 2405 | sub ornaments { |
2406 | if (defined $term) { | |
2407 | local ($warnLevel,$dieLevel) = (0, 1); | |
2408 | return '' unless $term->Features->{ornaments}; | |
2409 | eval { $term->ornaments(@_) } || ''; | |
2410 | } else { | |
2411 | $ornaments = shift; | |
2412 | } | |
2413 | } | |
2414 | ||
d338d6fe | 2415 | sub recallCommand { |
2416 | if (@_) { | |
2417 | $rc = quotemeta shift; | |
2418 | $rc .= "\\b" if $rc =~ /\w$/; | |
2419 | } | |
2420 | $prc = $rc; | |
2421 | $prc =~ s/\\b$//; | |
2422 | $prc =~ s/\\(.)/$1/g; | |
d338d6fe | 2423 | $prc; |
2424 | } | |
2425 | ||
2426 | sub LineInfo { | |
2427 | return $lineinfo unless @_; | |
2428 | $lineinfo = shift; | |
2429 | my $stream = ($lineinfo =~ /^(\+?\>|\|)/) ? $lineinfo : ">$lineinfo"; | |
055fd3a9 | 2430 | $slave_editor = ($stream =~ /^\|/); |
d338d6fe | 2431 | open(LINEINFO, "$stream") || &warn("Cannot open `$stream' for write"); |
2432 | $LINEINFO = \*LINEINFO; | |
2433 | my $save = select($LINEINFO); | |
2434 | $| = 1; | |
2435 | select($save); | |
2436 | $lineinfo; | |
2437 | } | |
2438 | ||
ee971a18 | 2439 | sub list_versions { |
2440 | my %version; | |
2441 | my $file; | |
2442 | for (keys %INC) { | |
2443 | $file = $_; | |
2444 | s,\.p[lm]$,,i ; | |
2445 | s,/,::,g ; | |
2446 | s/^perl5db$/DB/; | |
55497cff | 2447 | s/^Term::ReadLine::readline$/readline/; |
055fd3a9 GS |
2448 | if (defined ${ $_ . '::VERSION' }) { |
2449 | $version{$file} = "${ $_ . '::VERSION' } from "; | |
ee971a18 | 2450 | } |
2451 | $version{$file} .= $INC{$file}; | |
2452 | } | |
2c53b6d0 | 2453 | dumpit($OUT,\%version); |
ee971a18 | 2454 | } |
2455 | ||
d338d6fe | 2456 | sub sethelp { |
04e43a21 | 2457 | # XXX: make sure there are tabs between the command and explanation, |
055fd3a9 GS |
2458 | # or print_help will screw up your formatting if you have |
2459 | # eeevil ornaments enabled. This is an insane mess. | |
2460 | ||
d338d6fe | 2461 | $help = " |
6027b9a3 IZ |
2462 | B<T> Stack trace. |
2463 | B<s> [I<expr>] Single step [in I<expr>]. | |
2464 | B<n> [I<expr>] Next, steps over subroutine calls [in I<expr>]. | |
2465 | <B<CR>> Repeat last B<n> or B<s> command. | |
2466 | B<r> Return from current subroutine. | |
2467 | B<c> [I<line>|I<sub>] Continue; optionally inserts a one-time-only breakpoint | |
55497cff | 2468 | at the specified position. |
6027b9a3 IZ |
2469 | B<l> I<min>B<+>I<incr> List I<incr>+1 lines starting at I<min>. |
2470 | B<l> I<min>B<->I<max> List lines I<min> through I<max>. | |
2471 | B<l> I<line> List single I<line>. | |
2472 | B<l> I<subname> List first window of lines from subroutine. | |
3fbd6552 | 2473 | B<l> I<\$var> List first window of lines from subroutine referenced by I<\$var>. |
6027b9a3 IZ |
2474 | B<l> List next window of lines. |
2475 | B<-> List previous window of lines. | |
2476 | B<w> [I<line>] List window around I<line>. | |
2477 | B<.> Return to the executed line. | |
bee32ff8 GS |
2478 | B<f> I<filename> Switch to viewing I<filename>. File must be already loaded. |
2479 | I<filename> may be either the full name of the file, or a regular | |
2480 | expression matching the full file name: | |
2481 | B<f> I</home/me/foo.pl> and B<f> I<oo\\.> may access the same file. | |
2482 | Evals (with saved bodies) are considered to be filenames: | |
2483 | B<f> I<(eval 7)> and B<f> I<eval 7\\b> access the body of the 7th eval | |
2484 | (in the order of execution). | |
6027b9a3 IZ |
2485 | B</>I<pattern>B</> Search forwards for I<pattern>; final B</> is optional. |
2486 | B<?>I<pattern>B<?> Search backwards for I<pattern>; final B<?> is optional. | |
2487 | B<L> List all breakpoints and actions. | |
2488 | B<S> [[B<!>]I<pattern>] List subroutine names [not] matching I<pattern>. | |
2489 | B<t> Toggle trace mode. | |
2490 | B<t> I<expr> Trace through execution of I<expr>. | |
2491 | B<b> [I<line>] [I<condition>] | |
2492 | Set breakpoint; I<line> defaults to the current execution line; | |
2493 | I<condition> breaks if it evaluates to true, defaults to '1'. | |
2494 | B<b> I<subname> [I<condition>] | |
d338d6fe | 2495 | Set breakpoint at first line of subroutine. |
3fbd6552 | 2496 | B<b> I<\$var> Set breakpoint at first line of subroutine referenced by I<\$var>. |
6027b9a3 IZ |
2497 | B<b> B<load> I<filename> Set breakpoint on `require'ing the given file. |
2498 | B<b> B<postpone> I<subname> [I<condition>] | |
55497cff | 2499 | Set breakpoint at first line of subroutine after |
2500 | it is compiled. | |
6027b9a3 | 2501 | B<b> B<compile> I<subname> |
1d06cb2d | 2502 | Stop after the subroutine is compiled. |
6027b9a3 IZ |
2503 | B<d> [I<line>] Delete the breakpoint for I<line>. |
2504 | B<D> Delete all breakpoints. | |
2505 | B<a> [I<line>] I<command> | |
3fbd6552 GS |
2506 | Set an action to be done before the I<line> is executed; |
2507 | I<line> defaults to the current execution line. | |
6027b9a3 IZ |
2508 | Sequence is: check for breakpoint/watchpoint, print line |
2509 | if necessary, do action, prompt user if necessary, | |
3fbd6552 GS |
2510 | execute line. |
2511 | B<a> [I<line>] Delete the action for I<line>. | |
6027b9a3 IZ |
2512 | B<A> Delete all actions. |
2513 | B<W> I<expr> Add a global watch-expression. | |
2514 | B<W> Delete all watch-expressions. | |
2515 | B<V> [I<pkg> [I<vars>]] List some (default all) variables in package (default current). | |
2516 | Use B<~>I<pattern> and B<!>I<pattern> for positive and negative regexps. | |
2517 | B<X> [I<vars>] Same as \"B<V> I<currentpackage> [I<vars>]\". | |
91e74348 JH |
2518 | B<x> I<expr> Evals expression in list context, dumps the result. |
2519 | B<m> I<expr> Evals expression in list context, prints methods callable | |
1d06cb2d | 2520 | on the first element of the result. |
6027b9a3 | 2521 | B<m> I<class> Prints methods callable via the given class. |
055fd3a9 GS |
2522 | |
2523 | B<<> ? List Perl commands to run before each prompt. | |
6027b9a3 IZ |
2524 | B<<> I<expr> Define Perl command to run before each prompt. |
2525 | B<<<> I<expr> Add to the list of Perl commands to run before each prompt. | |
055fd3a9 | 2526 | B<>> ? List Perl commands to run after each prompt. |
6027b9a3 | 2527 | B<>> I<expr> Define Perl command to run after each prompt. |
3fbd6552 | 2528 | B<>>B<>> I<expr> Add to the list of Perl commands to run after each prompt. |
6027b9a3 | 2529 | B<{> I<db_command> Define debugger command to run before each prompt. |
055fd3a9 | 2530 | B<{> ? List debugger commands to run before each prompt. |
6027b9a3 IZ |
2531 | B<{{> I<db_command> Add to the list of debugger commands to run before each prompt. |
2532 | B<$prc> I<number> Redo a previous command (default previous command). | |
2533 | B<$prc> I<-number> Redo number'th-to-last command. | |
2534 | B<$prc> I<pattern> Redo last command that started with I<pattern>. | |
2535 | See 'B<O> I<recallCommand>' too. | |
2536 | B<$psh$psh> I<cmd> Run cmd in a subprocess (reads from DB::IN, writes to DB::OUT)" | |
d338d6fe | 2537 | . ( $rc eq $sh ? "" : " |
6027b9a3 IZ |
2538 | B<$psh> [I<cmd>] Run I<cmd> in subshell (forces \"\$SHELL -c 'cmd'\")." ) . " |
2539 | See 'B<O> I<shellBang>' too. | |
5bad0d9e | 2540 | B<@>I<file> Execute I<file> containing debugger commands (may nest). |
6027b9a3 IZ |
2541 | B<H> I<-number> Display last number commands (default all). |
2542 | B<p> I<expr> Same as \"I<print {DB::OUT} expr>\" in current package. | |
2543 | B<|>I<dbcmd> Run debugger command, piping DB::OUT to current pager. | |
2544 | B<||>I<dbcmd> Same as B<|>I<dbcmd> but DB::OUT is temporarilly select()ed as well. | |
2545 | B<\=> [I<alias> I<value>] Define a command alias, or list current aliases. | |
2546 | I<command> Execute as a perl statement in current package. | |
2547 | B<v> Show versions of loaded modules. | |
2548 | B<R> Pure-man-restart of debugger, some of debugger state | |
55497cff | 2549 | and command-line options may be lost. |
04e43a21 | 2550 | Currently the following settings are preserved: |
6027b9a3 IZ |
2551 | history, breakpoints and actions, debugger B<O>ptions |
2552 | and the following command-line options: I<-w>, I<-I>, I<-e>. | |
055fd3a9 GS |
2553 | |
2554 | B<O> [I<opt>] ... Set boolean option to true | |
2555 | B<O> [I<opt>B<?>] Query options | |
2556 | B<O> [I<opt>B<=>I<val>] [I<opt>=B<\">I<val>B<\">] ... | |
2557 | Set options. Use quotes in spaces in value. | |
2558 | I<recallCommand>, I<ShellBang> chars used to recall command or spawn shell; | |
2559 | I<pager> program for output of \"|cmd\"; | |
2560 | I<tkRunning> run Tk while prompting (with ReadLine); | |
2561 | I<signalLevel> I<warnLevel> I<dieLevel> level of verbosity; | |
2562 | I<inhibit_exit> Allows stepping off the end of the script. | |
2563 | I<ImmediateStop> Debugger should stop as early as possible. | |
2564 | I<RemotePort> Remote hostname:port for remote debugging | |
2565 | The following options affect what happens with B<V>, B<X>, and B<x> commands: | |
2566 | I<arrayDepth>, I<hashDepth> print only first N elements ('' for all); | |
2567 | I<compactDump>, I<veryCompact> change style of array and hash dump; | |
2568 | I<globPrint> whether to print contents of globs; | |
2569 | I<DumpDBFiles> dump arrays holding debugged files; | |
2570 | I<DumpPackages> dump symbol tables of packages; | |
2571 | I<DumpReused> dump contents of \"reused\" addresses; | |
2572 | I<quote>, I<HighBit>, I<undefPrint> change style of string dump; | |
2573 | I<bareStringify> Do not print the overload-stringified value; | |
2574 | Other options include: | |
2575 | I<PrintRet> affects printing of return value after B<r> command, | |
04e43a21 DL |
2576 | I<frame> affects printing messages on subroutine entry/exit. |
2577 | I<AutoTrace> affects printing messages on possible breaking points. | |
2578 | I<maxTraceLen> gives max length of evals/args listed in stack trace. | |
055fd3a9 | 2579 | I<ornaments> affects screen appearance of the command line. |
f1583d8f IZ |
2580 | I<CreateTTY> bits control attempts to create a new TTY on events: |
2581 | 1: on fork() 2: debugger is started inside debugger | |
2582 | 4: on startup | |
055fd3a9 GS |
2583 | During startup options are initialized from \$ENV{PERLDB_OPTS}. |
2584 | You can put additional initialization options I<TTY>, I<noTTY>, | |
2585 | I<ReadLine>, I<NonStop>, and I<RemotePort> there (or use | |
2586 | `B<R>' after you set them). | |
2587 | ||
2588 | B<q> or B<^D> Quit. Set B<\$DB::finished = 0> to debug global destruction. | |
6027b9a3 IZ |
2589 | B<h> [I<db_command>] Get help [on a specific debugger command], enter B<|h> to page. |
2590 | B<h h> Summary of debugger commands. | |
055fd3a9 GS |
2591 | B<$doccmd> I<manpage> Runs the external doc viewer B<$doccmd> command on the |
2592 | named Perl I<manpage>, or on B<$doccmd> itself if omitted. | |
2593 | Set B<\$DB::doccmd> to change viewer. | |
2594 | ||
2595 | Type `|h' for a paged display if this was too hard to read. | |
2596 | ||
04e43a21 | 2597 | "; # Fix balance of vi % matching: }}}} |
d338d6fe | 2598 | |
c391288e | 2599 | # note: tabs in the following section are not-so-helpful |
d338d6fe | 2600 | $summary = <<"END_SUM"; |
6027b9a3 IZ |
2601 | I<List/search source lines:> I<Control script execution:> |
2602 | B<l> [I<ln>|I<sub>] List source code B<T> Stack trace | |
2603 | B<-> or B<.> List previous/current line B<s> [I<expr>] Single step [in expr] | |
2604 | B<w> [I<line>] List around line B<n> [I<expr>] Next, steps over subs | |
d9f67849 | 2605 | B<f> I<filename> View source in file <B<CR>/B<Enter>> Repeat last B<n> or B<s> |
6027b9a3 | 2606 | B</>I<pattern>B</> B<?>I<patt>B<?> Search forw/backw B<r> Return from subroutine |
c391288e | 2607 | B<v> Show versions of modules B<c> [I<ln>|I<sub>] Continue until position |
6027b9a3 IZ |
2608 | I<Debugger controls:> B<L> List break/watch/actions |
2609 | B<O> [...] Set debugger options B<t> [I<expr>] Toggle trace [trace expr] | |
d9f67849 | 2610 | B<<>[B<<>]|B<{>[B<{>]|B<>>[B<>>] [I<cmd>] Do pre/post-prompt B<b> [I<ln>|I<event>|I<sub>] [I<cnd>] Set breakpoint |
6027b9a3 IZ |
2611 | B<$prc> [I<N>|I<pat>] Redo a previous command B<d> [I<ln>] or B<D> Delete a/all breakpoints |
2612 | B<H> [I<-num>] Display last num commands B<a> [I<ln>] I<cmd> Do cmd before line | |
2613 | B<=> [I<a> I<val>] Define/list an alias B<W> I<expr> Add a watch expression | |
2614 | B<h> [I<db_cmd>] Get help on command B<A> or B<W> Delete all actions/watch | |
d9f67849 | 2615 | B<|>[B<|>]I<db_cmd> Send output to pager B<$psh>\[B<$psh>\] I<syscmd> Run cmd in a subprocess |
c391288e JE |
2616 | B<q> or B<^D> Quit B<R> Attempt a restart |
2617 | I<Data Examination:> B<expr> Execute perl code, also see: B<s>,B<n>,B<t> I<expr> | |
2618 | B<x>|B<m> I<expr> Evals expr in list context, dumps the result or lists methods. | |
2619 | B<p> I<expr> Print expression (uses script's current package). | |
2620 | B<S> [[B<!>]I<pat>] List subroutine names [not] matching pattern | |
2621 | B<V> [I<Pk> [I<Vars>]] List Variables in Package. Vars can be ~pattern or !pattern. | |
2622 | B<X> [I<Vars>] Same as \"B<V> I<current_package> [I<Vars>]\". | |
055fd3a9 | 2623 | For more help, type B<h> I<cmd_letter>, or run B<$doccmd perldebug> for all docs. |
d338d6fe | 2624 | END_SUM |
055fd3a9 | 2625 | # ')}}; # Fix balance of vi % matching |
d338d6fe | 2626 | } |
2627 | ||
6027b9a3 | 2628 | sub print_help { |
055fd3a9 GS |
2629 | local $_ = shift; |
2630 | ||
2631 | # Restore proper alignment destroyed by eeevil I<> and B<> | |
2632 | # ornaments: A pox on both their houses! | |
2633 | # | |
2634 | # A help command will have everything up to and including | |
04e43a21 DL |
2635 | # the first tab sequence padded into a field 16 (or if indented 20) |
2636 | # wide. If it's wider than that, an extra space will be added. | |
055fd3a9 GS |
2637 | s{ |
2638 | ^ # only matters at start of line | |
2639 | ( \040{4} | \t )* # some subcommands are indented | |
2640 | ( < ? # so <CR> works | |
2641 | [BI] < [^\t\n] + ) # find an eeevil ornament | |
2642 | ( \t+ ) # original separation, discarded | |
2643 | ( .* ) # this will now start (no earlier) than | |
2644 | # column 16 | |
2645 | } { | |
2646 | my($leadwhite, $command, $midwhite, $text) = ($1, $2, $3, $4); | |
2647 | my $clean = $command; | |
2648 | $clean =~ s/[BI]<([^>]*)>/$1/g; | |
2649 | # replace with this whole string: | |
04e43a21 | 2650 | ($leadwhite ? " " x 4 : "") |
055fd3a9 | 2651 | . $command |
04e43a21 | 2652 | . ((" " x (16 + ($leadwhite ? 4 : 0) - length($clean))) || " ") |
055fd3a9 GS |
2653 | . $text; |
2654 | ||
2655 | }mgex; | |
2656 | ||
2657 | s{ # handle bold ornaments | |
2658 | B < ( [^>] + | > ) > | |
2659 | } { | |
2660 | $Term::ReadLine::TermCap::rl_term_set[2] | |
2661 | . $1 | |
2662 | . $Term::ReadLine::TermCap::rl_term_set[3] | |
2663 | }gex; | |
2664 | ||
2665 | s{ # handle italic ornaments | |
2666 | I < ( [^>] + | > ) > | |
2667 | } { | |
2668 | $Term::ReadLine::TermCap::rl_term_set[0] | |
2669 | . $1 | |
2670 | . $Term::ReadLine::TermCap::rl_term_set[1] | |
2671 | }gex; | |
2672 | ||
2673 | print $OUT $_; | |
2674 | } | |
2675 | ||
2676 | sub fix_less { | |
2677 | return if defined $ENV{LESS} && $ENV{LESS} =~ /r/; | |
2678 | my $is_less = $pager =~ /\bless\b/; | |
2679 | if ($pager =~ /\bmore\b/) { | |
2680 | my @st_more = stat('/usr/bin/more'); | |
2681 | my @st_less = stat('/usr/bin/less'); | |
2682 | $is_less = @st_more && @st_less | |
2683 | && $st_more[0] == $st_less[0] | |
2684 | && $st_more[1] == $st_less[1]; | |
2685 | } | |
2686 | # changes environment! | |
2687 | $ENV{LESS} .= 'r' if $is_less; | |
6027b9a3 IZ |
2688 | } |
2689 | ||
d338d6fe | 2690 | sub diesignal { |
54d04a52 | 2691 | local $frame = 0; |
ee971a18 | 2692 | local $doret = -2; |
77fb7b16 | 2693 | $SIG{'ABRT'} = 'DEFAULT'; |
d338d6fe | 2694 | kill 'ABRT', $$ if $panic++; |
ee85b803 CS |
2695 | if (defined &Carp::longmess) { |
2696 | local $SIG{__WARN__} = ''; | |
2697 | local $Carp::CarpLevel = 2; # mydie + confess | |
2698 | &warn(Carp::longmess("Signal @_")); | |
2699 | } | |
2700 | else { | |
2701 | print $DB::OUT "Got signal @_\n"; | |
2702 | } | |
d338d6fe | 2703 | kill 'ABRT', $$; |
2704 | } | |
2705 | ||
2706 | sub dbwarn { | |
54d04a52 | 2707 | local $frame = 0; |
ee971a18 | 2708 | local $doret = -2; |
d338d6fe | 2709 | local $SIG{__WARN__} = ''; |
77fb7b16 | 2710 | local $SIG{__DIE__} = ''; |
fb73857a | 2711 | eval { require Carp } if defined $^S; # If error/warning during compilation, |
2712 | # require may be broken. | |
04e43a21 | 2713 | CORE::warn(@_, "\nCannot print stack trace, load with -MCarp option to see stack"), |
fb73857a | 2714 | return unless defined &Carp::longmess; |
d338d6fe | 2715 | my ($mysingle,$mytrace) = ($single,$trace); |
2716 | $single = 0; $trace = 0; | |
2717 | my $mess = Carp::longmess(@_); | |
2718 | ($single,$trace) = ($mysingle,$mytrace); | |
d338d6fe | 2719 | &warn($mess); |
d338d6fe | 2720 | } |
2721 | ||
2722 | sub dbdie { | |
54d04a52 | 2723 | local $frame = 0; |
ee971a18 | 2724 | local $doret = -2; |
d338d6fe | 2725 | local $SIG{__DIE__} = ''; |
2726 | local $SIG{__WARN__} = ''; | |
2727 | my $i = 0; my $ineval = 0; my $sub; | |
fb73857a | 2728 | if ($dieLevel > 2) { |
d338d6fe | 2729 | local $SIG{__WARN__} = \&dbwarn; |
fb73857a | 2730 | &warn(@_); # Yell no matter what |
2731 | return; | |
2732 | } | |
2733 | if ($dieLevel < 2) { | |
2734 | die @_ if $^S; # in eval propagate | |
d338d6fe | 2735 | } |
98ea0861 IZ |
2736 | # No need to check $^S, eval is much more robust nowadays |
2737 | eval { require Carp }; #if defined $^S;# If error/warning during compilation, | |
fb73857a | 2738 | # require may be broken. |
055fd3a9 | 2739 | |
fb73857a | 2740 | die(@_, "\nCannot print stack trace, load with -MCarp option to see stack") |
2741 | unless defined &Carp::longmess; | |
055fd3a9 | 2742 | |
d338d6fe | 2743 | # We do not want to debug this chunk (automatic disabling works |
2744 | # inside DB::DB, but not in Carp). | |
2745 | my ($mysingle,$mytrace) = ($single,$trace); | |
2746 | $single = 0; $trace = 0; | |
98ea0861 IZ |
2747 | my $mess = "@_"; |
2748 | { | |
2749 | package Carp; # Do not include us in the list | |
2750 | eval { | |
2751 | $mess = Carp::longmess(@_); | |
2752 | }; | |
2753 | } | |
d338d6fe | 2754 | ($single,$trace) = ($mysingle,$mytrace); |
d338d6fe | 2755 | die $mess; |
2756 | } | |
2757 | ||
d338d6fe | 2758 | sub warnLevel { |
2759 | if (@_) { | |
2760 | $prevwarn = $SIG{__WARN__} unless $warnLevel; | |
2761 | $warnLevel = shift; | |
2762 | if ($warnLevel) { | |
0b7ed949 | 2763 | $SIG{__WARN__} = \&DB::dbwarn; |
04e43a21 | 2764 | } elsif ($prevwarn) { |
d338d6fe | 2765 | $SIG{__WARN__} = $prevwarn; |
2766 | } | |
2767 | } | |
2768 | $warnLevel; | |
2769 | } | |
2770 | ||
2771 | sub dieLevel { | |
2772 | if (@_) { | |
2773 | $prevdie = $SIG{__DIE__} unless $dieLevel; | |
2774 | $dieLevel = shift; | |
2775 | if ($dieLevel) { | |
0b7ed949 | 2776 | $SIG{__DIE__} = \&DB::dbdie; # if $dieLevel < 2; |
2777 | #$SIG{__DIE__} = \&DB::diehard if $dieLevel >= 2; | |
d338d6fe | 2778 | print $OUT "Stack dump during die enabled", |
43aed9ee IZ |
2779 | ( $dieLevel == 1 ? " outside of evals" : ""), ".\n" |
2780 | if $I_m_init; | |
d338d6fe | 2781 | print $OUT "Dump printed too.\n" if $dieLevel > 2; |
04e43a21 | 2782 | } elsif ($prevdie) { |
d338d6fe | 2783 | $SIG{__DIE__} = $prevdie; |
2784 | print $OUT "Default die handler restored.\n"; | |
2785 | } | |
2786 | } | |
2787 | $dieLevel; | |
2788 | } | |
2789 | ||
2790 | sub signalLevel { | |
2791 | if (@_) { | |
2792 | $prevsegv = $SIG{SEGV} unless $signalLevel; | |
2793 | $prevbus = $SIG{BUS} unless $signalLevel; | |
2794 | $signalLevel = shift; | |
2795 | if ($signalLevel) { | |
77fb7b16 | 2796 | $SIG{SEGV} = \&DB::diesignal; |
2797 | $SIG{BUS} = \&DB::diesignal; | |
d338d6fe | 2798 | } else { |
2799 | $SIG{SEGV} = $prevsegv; | |
2800 | $SIG{BUS} = $prevbus; | |
2801 | } | |
2802 | } | |
2803 | $signalLevel; | |
2804 | } | |
2805 | ||
83ee9e09 GS |
2806 | sub CvGV_name { |
2807 | my $in = shift; | |
2808 | my $name = CvGV_name_or_bust($in); | |
2809 | defined $name ? $name : $in; | |
2810 | } | |
2811 | ||
2812 | sub CvGV_name_or_bust { | |
2813 | my $in = shift; | |
2814 | return if $skipCvGV; # Backdoor to avoid problems if XS broken... | |
2526eab8 | 2815 | return unless ref $in; |
83ee9e09 GS |
2816 | $in = \&$in; # Hard reference... |
2817 | eval {require Devel::Peek; 1} or return; | |
2818 | my $gv = Devel::Peek::CvGV($in) or return; | |
2819 | *$gv{PACKAGE} . '::' . *$gv{NAME}; | |
2820 | } | |
2821 | ||
1d06cb2d IZ |
2822 | sub find_sub { |
2823 | my $subr = shift; | |
1d06cb2d | 2824 | $sub{$subr} or do { |
83ee9e09 GS |
2825 | return unless defined &$subr; |
2826 | my $name = CvGV_name_or_bust($subr); | |
2827 | my $data; | |
2828 | $data = $sub{$name} if defined $name; | |
2829 | return $data if defined $data; | |
2830 | ||
2831 | # Old stupid way... | |
1d06cb2d IZ |
2832 | $subr = \&$subr; # Hard reference |
2833 | my $s; | |
2834 | for (keys %sub) { | |
2835 | $s = $_, last if $subr eq \&$_; | |
2836 | } | |
2837 | $sub{$s} if $s; | |
2838 | } | |
2839 | } | |
2840 | ||
2841 | sub methods { | |
2842 | my $class = shift; | |
2843 | $class = ref $class if ref $class; | |
2844 | local %seen; | |
2845 | local %packs; | |
2846 | methods_via($class, '', 1); | |
2847 | methods_via('UNIVERSAL', 'UNIVERSAL', 0); | |
2848 | } | |
2849 | ||
2850 | sub methods_via { | |
2851 | my $class = shift; | |
2852 | return if $packs{$class}++; | |
2853 | my $prefix = shift; | |
2854 | my $prepend = $prefix ? "via $prefix: " : ''; | |
2855 | my $name; | |
055fd3a9 GS |
2856 | for $name (grep {defined &{${"${class}::"}{$_}}} |
2857 | sort keys %{"${class}::"}) { | |
477ea2b1 | 2858 | next if $seen{ $name }++; |
1d06cb2d IZ |
2859 | print $DB::OUT "$prepend$name\n"; |
2860 | } | |
2861 | return unless shift; # Recurse? | |
055fd3a9 | 2862 | for $name (@{"${class}::ISA"}) { |
1d06cb2d IZ |
2863 | $prepend = $prefix ? $prefix . " -> $name" : $name; |
2864 | methods_via($name, $prepend, 1); | |
2865 | } | |
2866 | } | |
2867 | ||
055fd3a9 | 2868 | sub setman { |
2986a63f | 2869 | $doccmd = $^O !~ /^(?:MSWin32|VMS|os2|dos|amigaos|riscos|MacOS|NetWare)\z/s |
055fd3a9 GS |
2870 | ? "man" # O Happy Day! |
2871 | : "perldoc"; # Alas, poor unfortunates | |
2872 | } | |
2873 | ||
2874 | sub runman { | |
2875 | my $page = shift; | |
2876 | unless ($page) { | |
2877 | &system("$doccmd $doccmd"); | |
2878 | return; | |
2879 | } | |
2880 | # this way user can override, like with $doccmd="man -Mwhatever" | |
2881 | # or even just "man " to disable the path check. | |
2882 | unless ($doccmd eq 'man') { | |
2883 | &system("$doccmd $page"); | |
2884 | return; | |
2885 | } | |
2886 | ||
2887 | $page = 'perl' if lc($page) eq 'help'; | |
2888 | ||
2889 | require Config; | |
2890 | my $man1dir = $Config::Config{'man1dir'}; | |
2891 | my $man3dir = $Config::Config{'man3dir'}; | |
2892 | for ($man1dir, $man3dir) { s#/[^/]*\z## if /\S/ } | |
2893 | my $manpath = ''; | |
2894 | $manpath .= "$man1dir:" if $man1dir =~ /\S/; | |
2895 | $manpath .= "$man3dir:" if $man3dir =~ /\S/ && $man1dir ne $man3dir; | |
2896 | chop $manpath if $manpath; | |
2897 | # harmless if missing, I figure | |
2898 | my $oldpath = $ENV{MANPATH}; | |
2899 | $ENV{MANPATH} = $manpath if $manpath; | |
2900 | my $nopathopt = $^O =~ /dunno what goes here/; | |
04e43a21 | 2901 | if (CORE::system($doccmd, |
055fd3a9 GS |
2902 | # I just *know* there are men without -M |
2903 | (($manpath && !$nopathopt) ? ("-M", $manpath) : ()), | |
2904 | split ' ', $page) ) | |
2905 | { | |
2906 | unless ($page =~ /^perl\w/) { | |
2907 | if (grep { $page eq $_ } qw{ | |
2908 | 5004delta 5005delta amiga api apio book boot bot call compile | |
2909 | cygwin data dbmfilter debug debguts delta diag doc dos dsc embed | |
2910 | faq faq1 faq2 faq3 faq4 faq5 faq6 faq7 faq8 faq9 filter fork | |
2911 | form func guts hack hist hpux intern ipc lexwarn locale lol mod | |
2912 | modinstall modlib number obj op opentut os2 os390 pod port | |
2913 | ref reftut run sec style sub syn thrtut tie toc todo toot tootc | |
2914 | trap unicode var vms win32 xs xstut | |
2915 | }) | |
2916 | { | |
2917 | $page =~ s/^/perl/; | |
04e43a21 | 2918 | CORE::system($doccmd, |
055fd3a9 GS |
2919 | (($manpath && !$nopathopt) ? ("-M", $manpath) : ()), |
2920 | $page); | |
2921 | } | |
2922 | } | |
2923 | } | |
2924 | if (defined $oldpath) { | |
2925 | $ENV{MANPATH} = $manpath; | |
2926 | } else { | |
2927 | delete $ENV{MANPATH}; | |
2928 | } | |
2929 | } | |
2930 | ||
d338d6fe | 2931 | # The following BEGIN is very handy if debugger goes havoc, debugging debugger? |
2932 | ||
2933 | BEGIN { # This does not compile, alas. | |
2934 | $IN = \*STDIN; # For bugs before DB::OUT has been opened | |
2935 | $OUT = \*STDERR; # For errors before DB::OUT has been opened | |
2936 | $sh = '!'; | |
2937 | $rc = ','; | |
2938 | @hist = ('?'); | |
2939 | $deep = 100; # warning if stack gets this deep | |
2940 | $window = 10; | |
2941 | $preview = 3; | |
2942 | $sub = ''; | |
77fb7b16 | 2943 | $SIG{INT} = \&DB::catch; |
ee971a18 | 2944 | # This may be enabled to debug debugger: |
2945 | #$warnLevel = 1 unless defined $warnLevel; | |
2946 | #$dieLevel = 1 unless defined $dieLevel; | |
2947 | #$signalLevel = 1 unless defined $signalLevel; | |
d338d6fe | 2948 | |
2949 | $db_stop = 0; # Compiler warning | |
2950 | $db_stop = 1 << 30; | |
2951 | $level = 0; # Level of recursive debugging | |
55497cff | 2952 | # @stack and $doret are needed in sub sub, which is called for DB::postponed. |
2953 | # Triggers bug (?) in perl is we postpone this until runtime: | |
2954 | @postponed = @stack = (0); | |
f8b5b99c | 2955 | $stack_depth = 0; # Localized $#stack |
55497cff | 2956 | $doret = -2; |
2957 | $frame = 0; | |
d338d6fe | 2958 | } |
2959 | ||
54d04a52 IZ |
2960 | BEGIN {$^W = $ini_warn;} # Switch warnings back |
2961 | ||
04e43a21 | 2962 | #use Carp; # This did break, left for debugging |
d338d6fe | 2963 | |
55497cff | 2964 | sub db_complete { |
08a4aec0 | 2965 | # Specific code for b c l V m f O, &blah, $blah, @blah, %blah |
55497cff | 2966 | my($text, $line, $start) = @_; |
477ea2b1 | 2967 | my ($itext, $search, $prefix, $pack) = |
055fd3a9 | 2968 | ($text, "^\Q${'package'}::\E([^:]+)\$"); |
55497cff | 2969 | |
08a4aec0 IZ |
2970 | return sort grep /^\Q$text/, (keys %sub), qw(postpone load compile), # subroutines |
2971 | (map { /$search/ ? ($1) : () } keys %sub) | |
2972 | if (substr $line, 0, $start) =~ /^\|*[blc]\s+((postpone|compile)\s+)?$/; | |
2973 | return sort grep /^\Q$text/, values %INC # files | |
477ea2b1 | 2974 | if (substr $line, 0, $start) =~ /^\|*b\s+load\s+$/; |
08a4aec0 IZ |
2975 | return sort map {($_, db_complete($_ . "::", "V ", 2))} |
2976 | grep /^\Q$text/, map { /^(.*)::$/ ? ($1) : ()} keys %:: # top-packages | |
2977 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ and $text =~ /^\w*$/; | |
2978 | return sort map {($_, db_complete($_ . "::", "V ", 2))} | |
2979 | grep !/^main::/, | |
2980 | grep /^\Q$text/, map { /^(.*)::$/ ? ($prefix . "::$1") : ()} keys %{$prefix . '::'} | |
2981 | # packages | |
2982 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ | |
2983 | and $text =~ /^(.*[^:])::?(\w*)$/ and $prefix = $1; | |
477ea2b1 IZ |
2984 | if ( $line =~ /^\|*f\s+(.*)/ ) { # Loaded files |
2985 | # We may want to complete to (eval 9), so $text may be wrong | |
2986 | $prefix = length($1) - length($text); | |
2987 | $text = $1; | |
08a4aec0 IZ |
2988 | return sort |
2989 | map {substr $_, 2 + $prefix} grep /^_<\Q$text/, (keys %main::), $0 | |
477ea2b1 | 2990 | } |
55497cff | 2991 | if ((substr $text, 0, 1) eq '&') { # subroutines |
2992 | $text = substr $text, 1; | |
2993 | $prefix = "&"; | |
08a4aec0 IZ |
2994 | return sort map "$prefix$_", |
2995 | grep /^\Q$text/, | |
2996 | (keys %sub), | |
2997 | (map { /$search/ ? ($1) : () } | |
2998 | keys %sub); | |
55497cff | 2999 | } |
3000 | if ($text =~ /^[\$@%](.*)::(.*)/) { # symbols in a package | |
3001 | $pack = ($1 eq 'main' ? '' : $1) . '::'; | |
3002 | $prefix = (substr $text, 0, 1) . $1 . '::'; | |
3003 | $text = $2; | |
3004 | my @out | |
3005 | = map "$prefix$_", grep /^\Q$text/, grep /^_?[a-zA-Z]/, keys %$pack ; | |
3006 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { | |
3007 | return db_complete($out[0], $line, $start); | |
3008 | } | |
08a4aec0 | 3009 | return sort @out; |
55497cff | 3010 | } |
3011 | if ($text =~ /^[\$@%]/) { # symbols (in $package + packages in main) | |
3012 | $pack = ($package eq 'main' ? '' : $package) . '::'; | |
3013 | $prefix = substr $text, 0, 1; | |
3014 | $text = substr $text, 1; | |
3015 | my @out = map "$prefix$_", grep /^\Q$text/, | |
3016 | (grep /^_?[a-zA-Z]/, keys %$pack), | |
3017 | ( $pack eq '::' ? () : (grep /::$/, keys %::) ) ; | |
3018 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { | |
3019 | return db_complete($out[0], $line, $start); | |
3020 | } | |
08a4aec0 | 3021 | return sort @out; |
55497cff | 3022 | } |
477ea2b1 | 3023 | if ((substr $line, 0, $start) =~ /^\|*O\b.*\s$/) { # Options after a space |
55497cff | 3024 | my @out = grep /^\Q$text/, @options; |
3025 | my $val = option_val($out[0], undef); | |
3026 | my $out = '? '; | |
3027 | if (not defined $val or $val =~ /[\n\r]/) { | |
3028 | # Can do nothing better | |
3029 | } elsif ($val =~ /\s/) { | |
3030 | my $found; | |
3031 | foreach $l (split //, qq/\"\'\#\|/) { | |
3032 | $out = "$l$val$l ", last if (index $val, $l) == -1; | |
3033 | } | |
3034 | } else { | |
3035 | $out = "=$val "; | |
3036 | } | |
3037 | # Default to value if one completion, to question if many | |
a737e074 | 3038 | $rl_attribs->{completer_terminator_character} = (@out == 1 ? $out : '? '); |
08a4aec0 | 3039 | return sort @out; |
55497cff | 3040 | } |
a737e074 | 3041 | return $term->filename_list($text); # filenames |
55497cff | 3042 | } |
3043 | ||
43aed9ee IZ |
3044 | sub end_report { |
3045 | print $OUT "Use `q' to quit or `R' to restart. `h q' for details.\n" | |
3046 | } | |
4639966b | 3047 | |
bf25f2b5 JH |
3048 | sub clean_ENV { |
3049 | if (defined($ini_pids)) { | |
3050 | $ENV{PERLDB_PIDS} = $ini_pids; | |
3051 | } else { | |
3052 | delete($ENV{PERLDB_PIDS}); | |
3053 | } | |
3054 | } | |
3055 | ||
55497cff | 3056 | END { |
20928eff PS |
3057 | $finished = 1 if $inhibit_exit; # So that some keys may be disabled. |
3058 | $fall_off_end = 1 unless $inhibit_exit; | |
36477c24 | 3059 | # Do not stop in at_exit() and destructors on exit: |
20928eff PS |
3060 | $DB::single = !$fall_off_end && !$runnonstop; |
3061 | DB::fake::at_exit() unless $fall_off_end or $runnonstop; | |
55497cff | 3062 | } |
3063 | ||
3064 | package DB::fake; | |
3065 | ||
3066 | sub at_exit { | |
43aed9ee | 3067 | "Debugged program terminated. Use `q' to quit or `R' to restart."; |
55497cff | 3068 | } |
3069 | ||
36477c24 | 3070 | package DB; # Do not trace this 1; below! |
3071 | ||
d338d6fe | 3072 | 1; |