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Revision 1.73 by root, Tue Jan 10 04:23:39 2006 UTC vs.
Revision 1.121 by root, Fri Jan 20 22:49:34 2006 UTC

26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
44Intelligent selection. This extension tries to be more intelligent when 48(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 49when the user extends selections (double-click and further clicks). Right
46urls and complete shell-quoted arguments, which is very convenient, too, 50now, it tries to select words, urls and complete shell-quoted
47if your F<ls> supports C<--quoting-style=shell>. 51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
48 53
49It also offers the following bindable event: 54A double-click usually selects the word under the cursor, further clicks
55will enlarge the selection.
56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72You can look at the source of the selection extension to see more
73interesting uses, such as parsing a line from beginning to end.
74
75This extension also offers following bindable keyboard commands:
50 76
51=over 4 77=over 4
52 78
53=item rot13 79=item rot13
54 80
64runtime. 90runtime.
65 91
66=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
67 93
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection 94Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action. 95text into various other formats/action (such as uri unescaping, perl
96evaluation, web-browser starting etc.), depending on content.
70 97
98Other extensions can extend this popup menu by pushing a code reference
99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
100popup is displayed.
101
102It's sole argument is the popup menu, which can be modified. The selection
103is in C<$_>, which can be used to decide wether to add something or not.
104It should either return nothing or a string and a code reference. The
105string will be used as button text and the code reference will be called
106when the button gets activated and should transform C<$_>.
107
108The following will add an entry C<a to b> that transforms all C<a>s in
109the selection to C<b>s, but only if the selection currently contains any
110C<a>s:
111
112 push @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
116
71=item searchable-scrollback (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
72 118
73Adds regex search functionality to the scrollback buffer, triggered by a 119Adds regex search functionality to the scrollback buffer, triggered
74hotkey (default: C<M-s>). When in search mode, terminal input/output is 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
75suspended, C</> starts an incremental regex search, C<n> searches further, 121input/output is suspended and a regex is displayed at the bottom of the
76C<p> jumps to the previous match. C<enter> leaves search mode at the 122screen.
77current position and C<escape> returns to the original position.
78 123
79=item digital-clock 124Inputting characters appends them to the regex and continues incremental
125search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
126search upwards/downwards in the scrollback buffer, C<End> jumps to the
127bottom. C<Escape> leaves search mode and returns to the point where search
128was started, while C<Enter> or C<Return> stay at the current position and
129additionally stores the first match in the current line into the primary
130selection.
80 131
81Displays a digital clock using the built-in overlay. 132=item selection-autotransform
133
134This selection allows you to do automatic transforms on a selection
135whenever a selection is made.
136
137It works by specifying perl snippets (most useful is a single C<s///>
138operator) that modify C<$_> as resources:
139
140 URxvt.selection-autotransform.0: transform
141 URxvt.selection-autotransform.1: transform
142 ...
143
144For example, the following will transform selections of the form
145C<filename:number>, often seen in compiler messages, into C<vi +$filename
146$word>:
147
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
149
150And this example matches the same,but replaces it with vi-commands you can
151paste directly into your (vi :) editor:
152
153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
154
155Of course, this can be modified to suit your needs and your editor :)
156
157To expand the example above to typical perl error messages ("XXX at
158FILENAME line YYY."), you need a slightly more elaborate solution:
159
160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
162
163The first line tells the selection code to treat the unchanging part of
164every error message as a selection pattern, and the second line transforms
165the message into vi commands to load the file.
166
167=item readline
168
169A support package that tries to make editing with readline easier. At the
170moment, it reacts to clicking with the left mouse button by trying to
171move the text cursor to this position. It does so by generating as many
172cursor-left or cursor-right keypresses as required (the this only works
173for programs that correctly support wide characters).
174
175It only works when clicking into the same line (possibly extended over
176multiple rows) as the text cursor and on the primary screen, to reduce the
177risk of misinterpreting. The normal selection isn't disabled, so quick
178successive clicks might interfere with selection creation in harmless
179ways.
180
181=item tabbed
182
183This transforms the terminal into a tabbar with additional terminals, that
184is, it implements what is commonly refered to as "tabbed terminal". The topmost line
185displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
186button per tab.
187
188Clicking a button will activate that tab. Pressing B<Shift-Left> and
189B<Shift-Right> will switch to the tab left or right of the current one,
190while B<Shift-Down> creates a new tab.
82 191
83=item mark-urls 192=item mark-urls
84 193
85Uses per-line display filtering (C<on_line_update>) to underline urls. 194Uses per-line display filtering (C<on_line_update>) to underline urls and
195make them clickable. When middle-clicked, the program specified in the
196resource C<urlLauncher> (default C<x-www-browser>) will be started with
197the URL as first argument.
198
199=item automove-background
200
201This is basically a one-line extension that dynamically changes the background pixmap offset
202to the window position, in effect creating the same effect as pseudo transparency with
203a custom pixmap. No scaling is supported in this mode. Exmaple:
204
205 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
86 206
87=item block-graphics-to-ascii 207=item block-graphics-to-ascii
88 208
89A not very useful example of filtering all text output to the terminal, 209A not very useful example of filtering all text output to the terminal,
90by replacing all line-drawing characters (U+2500 .. U+259F) by a 210by replacing all line-drawing characters (U+2500 .. U+259F) by a
91similar-looking ascii character. 211similar-looking ascii character.
92 212
213=item digital-clock
214
215Displays a digital clock using the built-in overlay.
216
93=item example-refresh-hooks 217=item example-refresh-hooks
94 218
95Displays a very simple digital clock in the upper right corner of the 219Displays a very simple digital clock in the upper right corner of the
96window. Illustrates overwriting the refresh callbacks to create your own 220window. Illustrates overwriting the refresh callbacks to create your own
97overlays or changes. 221overlays or changes.
98 222
223=item selection-pastebin
224
225This is a little rarely useful extension that Uploads the selection as
226textfile to a remote site (or does other things). (The implementation is
227not currently secure for use in a multiuser environment as it writes to
228F</tmp> directly.).
229
230It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
231i.e.
232
233 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
234
235Pressing this combination runs a command with C<%> replaced by the name of
236the textfile. This command can be set via a resource:
237
238 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
239
240And the default is likely not useful to anybody but the few people around
241here :)
242
243The name of the textfile is the hex encoded md5 sum of the selection, so
244the same content should lead to the same filename.
245
246After a successful upload the selection will be replaced by the text given
247in the C<selection-pastebin-url> resource (again, the % is the placeholder
248for the filename):
249
250 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
251
99=back 252=back
253
254=head1 API DOCUMENTATION
100 255
101=head2 General API Considerations 256=head2 General API Considerations
102 257
103All objects (such as terminals, time watchers etc.) are typical 258All objects (such as terminals, time watchers etc.) are typical
104reference-to-hash objects. The hash can be used to store anything you 259reference-to-hash objects. The hash can be used to store anything you
117=over 4 272=over 4
118 273
119=item $text 274=item $text
120 275
121Rxvt-unicodes special way of encoding text, where one "unicode" character 276Rxvt-unicodes special way of encoding text, where one "unicode" character
122always represents one screen cell. See L<row_t> for a discussion of this format. 277always represents one screen cell. See L<ROW_t> for a discussion of this format.
123 278
124=item $string 279=item $string
125 280
126A perl text string, with an emphasis on I<text>. It can store all unicode 281A perl text string, with an emphasis on I<text>. It can store all unicode
127characters and is to be distinguished with text encoded in a specific 282characters and is to be distinguished with text encoded in a specific
173called whenever the relevant event happens. 328called whenever the relevant event happens.
174 329
175The first argument passed to them is an extension oject as described in 330The first argument passed to them is an extension oject as described in
176the in the C<Extension Objects> section. 331the in the C<Extension Objects> section.
177 332
178B<All> of these hooks must return a boolean value. If it is true, then the 333B<All> of these hooks must return a boolean value. If any of the called
179event counts as being I<consumed>, and the invocation of other hooks is 334hooks returns true, then the event counts as being I<consumed>, and the
180skipped, and the relevant action might not be carried out by the C++ code. 335relevant action might not be carried out by the C++ code.
181 336
182I<< When in doubt, return a false value (preferably C<()>). >> 337I<< When in doubt, return a false value (preferably C<()>). >>
183 338
184=over 4 339=over 4
185 340
186=item on_init $term 341=item on_init $term
187 342
188Called after a new terminal object has been initialized, but before 343Called after a new terminal object has been initialized, but before
189windows are created or the command gets run. Most methods are unsafe to 344windows are created or the command gets run. Most methods are unsafe to
190call or deliver senseless data, as terminal size and other characteristics 345call or deliver senseless data, as terminal size and other characteristics
191have not yet been determined. You can safely query and change resources, 346have not yet been determined. You can safely query and change resources
192though. 347and options, though. For many purposes the C<on_start> hook is a better
348place.
349
350=item on_start $term
351
352Called at the very end of initialisation of a new terminal, just before
353trying to map (display) the toplevel and returning to the mainloop.
354
355=item on_destroy $term
356
357Called whenever something tries to destroy terminal, before doing anything
358yet. If this hook returns true, then destruction is skipped, but this is
359rarely a good idea.
193 360
194=item on_reset $term 361=item on_reset $term
195 362
196Called after the screen is "reset" for any reason, such as resizing or 363Called after the screen is "reset" for any reason, such as resizing or
197control sequences. Here is where you can react on changes to size-related 364control sequences. Here is where you can react on changes to size-related
198variables. 365variables.
199 366
200=item on_start $term 367=item on_child_start $term, $pid
201 368
202Called at the very end of initialisation of a new terminal, just before 369Called just after the child process has been C<fork>ed.
203returning to the mainloop. 370
371=item on_child_exit $term, $status
372
373Called just after the child process has exited. C<$status> is the status
374from C<waitpid>.
204 375
205=item on_sel_make $term, $eventtime 376=item on_sel_make $term, $eventtime
206 377
207Called whenever a selection has been made by the user, but before the 378Called whenever a selection has been made by the user, but before the
208selection text is copied, so changes to the beginning, end or type of the 379selection text is copied, so changes to the beginning, end or type of the
222=item on_sel_extend $term 393=item on_sel_extend $term
223 394
224Called whenever the user tries to extend the selection (e.g. with a double 395Called whenever the user tries to extend the selection (e.g. with a double
225click) and is either supposed to return false (normal operation), or 396click) and is either supposed to return false (normal operation), or
226should extend the selection itelf and return true to suppress the built-in 397should extend the selection itelf and return true to suppress the built-in
227processing. 398processing. This can happen multiple times, as long as the callback
399returns true, it will be called on every further click by the user and is
400supposed to enlarge the selection more and more, if possible.
228 401
229See the F<selection> example extension. 402See the F<selection> example extension.
230 403
231=item on_view_change $term, $offset 404=item on_view_change $term, $offset
232 405
299 472
300Called whenever the user presses a key combination that has a 473Called whenever the user presses a key combination that has a
301C<perl:string> action bound to it (see description of the B<keysym> 474C<perl:string> action bound to it (see description of the B<keysym>
302resource in the @@RXVT_NAME@@(1) manpage). 475resource in the @@RXVT_NAME@@(1) manpage).
303 476
477=item on_x_event $term, $event
478
479Called on every X event received on the vt window (and possibly other
480windows). Should only be used as a last resort. Most event structure
481members are not passed.
482
304=item on_focus_in $term 483=item on_focus_in $term
305 484
306Called whenever the window gets the keyboard focus, before rxvt-unicode 485Called whenever the window gets the keyboard focus, before rxvt-unicode
307does focus in processing. 486does focus in processing.
308 487
309=item on_focus_out $term 488=item on_focus_out $term
310 489
311Called wheneever the window loses keyboard focus, before rxvt-unicode does 490Called wheneever the window loses keyboard focus, before rxvt-unicode does
312focus out processing. 491focus out processing.
313 492
493=item on_configure_notify $term, $event
494
495=item on_property_notify $term, $event
496
314=item on_key_press $term, $event, $keysym, $octets 497=item on_key_press $term, $event, $keysym, $octets
315 498
316=item on_key_release $term, $event, $keysym 499=item on_key_release $term, $event, $keysym
317 500
318=item on_button_press $term, $event 501=item on_button_press $term, $event
327 510
328Called whenever the corresponding X event is received for the terminal If 511Called whenever the corresponding X event is received for the terminal If
329the hook returns true, then the even will be ignored by rxvt-unicode. 512the hook returns true, then the even will be ignored by rxvt-unicode.
330 513
331The event is a hash with most values as named by Xlib (see the XEvent 514The event is a hash with most values as named by Xlib (see the XEvent
332manpage), with the additional members C<row> and C<col>, which are the row 515manpage), with the additional members C<row> and C<col>, which are the
333and column under the mouse cursor. 516(real, not screen-based) row and column under the mouse cursor.
334 517
335C<on_key_press> additionally receives the string rxvt-unicode would 518C<on_key_press> additionally receives the string rxvt-unicode would
336output, if any, in locale-specific encoding. 519output, if any, in locale-specific encoding.
337 520
338subwindow. 521subwindow.
339 522
340=back 523=item on_client_message $term, $event
341 524
342=head2 Variables in the C<urxvt> Package 525=item on_wm_protocols $term, $event
343 526
344=over 4 527=item on_wm_delete_window $term, $event
345 528
346=item $urxvt::TERM 529Called when various types of ClientMessage events are received (all with
347 530format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
348The current terminal. This variable stores the current C<urxvt::term>
349object, whenever a callback/hook is executing.
350
351=back
352
353=head2 Functions in the C<urxvt> Package
354
355=over 4
356
357=item $term = new urxvt [arg...]
358
359Creates a new terminal, very similar as if you had started it with
360C<system $binfile, arg...>. Croaks (and probably outputs an error message)
361if the new instance couldn't be created. Returns C<undef> if the new
362instance didn't initialise perl, and the terminal object otherwise. The
363C<init> and C<start> hooks will be called during the call.
364
365=item urxvt::fatal $errormessage
366
367Fatally aborts execution with the given error message. Avoid at all
368costs! The only time this is acceptable is when the terminal process
369starts up.
370
371=item urxvt::warn $string
372
373Calls C<rxvt_warn> with the given string which should not include a
374newline. The module also overwrites the C<warn> builtin with a function
375that calls this function.
376
377Using this function has the advantage that its output ends up in the
378correct place, e.g. on stderr of the connecting urxvtc client.
379
380=item $is_safe = urxvt::safe
381
382Returns true when it is safe to do potentially unsafe things, such as
383evaluating perl code specified by the user. This is true when urxvt was
384started setuid or setgid.
385
386=item $time = urxvt::NOW
387
388Returns the "current time" (as per the event loop).
389
390=item urxvt::CurrentTime
391
392=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
393Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
394Button4Mask, Button5Mask, AnyModifier
395
396Various constants for use in X calls and event processing.
397
398=back
399
400=head2 RENDITION
401
402Rendition bitsets contain information about colour, font, font styles and
403similar information for each screen cell.
404
405The following "macros" deal with changes in rendition sets. You should
406never just create a bitset, you should always modify an existing one,
407as they contain important information required for correct operation of
408rxvt-unicode.
409
410=over 4
411
412=item $rend = urxvt::DEFAULT_RSTYLE
413
414Returns the default rendition, as used when the terminal is starting up or
415being reset. Useful as a base to start when creating renditions.
416
417=item $rend = urxvt::OVERLAY_RSTYLE
418
419Return the rendition mask used for overlays by default.
420
421=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
422
423Return the bit that enabled bold, italic, blink, reverse-video and
424underline, respectively. To enable such a style, just logically OR it into
425the bitset.
426
427=item $foreground = urxvt::GET_BASEFG $rend
428
429=item $background = urxvt::GET_BASEBG $rend
430
431Return the foreground/background colour index, respectively.
432
433=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
434
435=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
436
437Replace the foreground/background colour in the rendition mask with the
438specified one.
439
440=item $value = urxvt::GET_CUSTOM ($rend)
441
442Return the "custom" value: Every rendition has 5 bits for use by
443extensions. They can be set and changed as you like and are initially
444zero.
445
446=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
447
448Change the custom value.
449 531
450=back 532=back
451 533
452=cut 534=cut
453 535
459use Scalar::Util (); 541use Scalar::Util ();
460use List::Util (); 542use List::Util ();
461 543
462our $VERSION = 1; 544our $VERSION = 1;
463our $TERM; 545our $TERM;
546our @TERM_INIT;
547our @TERM_EXT;
464our @HOOKNAME; 548our @HOOKNAME;
465our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 549our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
466our %OPTION; 550our %OPTION;
467 551
468our $LIBDIR; 552our $LIBDIR;
469our $RESNAME; 553our $RESNAME;
470our $RESCLASS; 554our $RESCLASS;
471our $RXVTNAME; 555our $RXVTNAME;
472 556
557our $NOCHAR = chr 0xfffe;
558
559=head2 Variables in the C<urxvt> Package
560
561=over 4
562
563=item $urxvt::LIBDIR
564
565The rxvt-unicode library directory, where, among other things, the perl
566modules and scripts are stored.
567
568=item $urxvt::RESCLASS, $urxvt::RESCLASS
569
570The resource class and name rxvt-unicode uses to look up X resources.
571
572=item $urxvt::RXVTNAME
573
574The basename of the installed binaries, usually C<urxvt>.
575
576=item $urxvt::TERM
577
578The current terminal. This variable stores the current C<urxvt::term>
579object, whenever a callback/hook is executing.
580
581=item @urxvt::TERM_INIT
582
583All coderefs in this array will be called as methods of the next newly
584created C<urxvt::term> object (during the C<on_init> phase). The array
585gets cleared before the codereferences that were in it are being executed,
586so coderefs can push themselves onto it again if they so desire.
587
588This complements to the perl-eval commandline option, but gets executed
589first.
590
591=item @urxvt::TERM_EXT
592
593Works similar to C<@TERM_INIT>, but contains perl package/class names, which
594get registered as normal extensions after calling the hooks in C<@TERM_INIT>
595but before other extensions. Gets cleared just like C<@TERM_INIT>.
596
597=back
598
599=head2 Functions in the C<urxvt> Package
600
601=over 4
602
603=item urxvt::fatal $errormessage
604
605Fatally aborts execution with the given error message. Avoid at all
606costs! The only time this is acceptable is when the terminal process
607starts up.
608
609=item urxvt::warn $string
610
611Calls C<rxvt_warn> with the given string which should not include a
612newline. The module also overwrites the C<warn> builtin with a function
613that calls this function.
614
615Using this function has the advantage that its output ends up in the
616correct place, e.g. on stderr of the connecting urxvtc client.
617
618Messages have a size limit of 1023 bytes currently.
619
620=item $time = urxvt::NOW
621
622Returns the "current time" (as per the event loop).
623
624=item urxvt::CurrentTime
625
626=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
627Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
628Button4Mask, Button5Mask, AnyModifier
629
630=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
631ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
632PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
633Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
634KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
635ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
636FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
637
638=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
639EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
640GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
641UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
642ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
643CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
644SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
645
646Various constants for use in X calls and event processing.
647
648=back
649
650=head2 RENDITION
651
652Rendition bitsets contain information about colour, font, font styles and
653similar information for each screen cell.
654
655The following "macros" deal with changes in rendition sets. You should
656never just create a bitset, you should always modify an existing one,
657as they contain important information required for correct operation of
658rxvt-unicode.
659
660=over 4
661
662=item $rend = urxvt::DEFAULT_RSTYLE
663
664Returns the default rendition, as used when the terminal is starting up or
665being reset. Useful as a base to start when creating renditions.
666
667=item $rend = urxvt::OVERLAY_RSTYLE
668
669Return the rendition mask used for overlays by default.
670
671=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
672
673Return the bit that enabled bold, italic, blink, reverse-video and
674underline, respectively. To enable such a style, just logically OR it into
675the bitset.
676
677=item $foreground = urxvt::GET_BASEFG $rend
678
679=item $background = urxvt::GET_BASEBG $rend
680
681Return the foreground/background colour index, respectively.
682
683=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
684
685=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
686
687Replace the foreground/background colour in the rendition mask with the
688specified one.
689
690=item $value = urxvt::GET_CUSTOM $rend
691
692Return the "custom" value: Every rendition has 5 bits for use by
693extensions. They can be set and changed as you like and are initially
694zero.
695
696=item $rend = urxvt::SET_CUSTOM $rend, $new_value
697
698Change the custom value.
699
700=back
701
702=cut
703
473BEGIN { 704BEGIN {
474 urxvt->bootstrap;
475
476 # overwrite perl's warn 705 # overwrite perl's warn
477 *CORE::GLOBAL::warn = sub { 706 *CORE::GLOBAL::warn = sub {
478 my $msg = join "", @_; 707 my $msg = join "", @_;
479 $msg .= "\n" 708 $msg .= "\n"
480 unless $msg =~ /\n$/; 709 unless $msg =~ /\n$/;
481 urxvt::warn ($msg); 710 urxvt::warn ($msg);
482 }; 711 };
483
484 delete $ENV{IFS};
485 delete $ENV{CDPATH};
486 delete $ENV{BASH_ENV};
487 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
488} 712}
489 713
490my @hook_count;
491my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 714my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
492 715
493sub verbose { 716sub verbose {
494 my ($level, $msg) = @_; 717 my ($level, $msg) = @_;
495 warn "$msg\n" if $level <= $verbosity; 718 warn "$msg\n" if $level <= $verbosity;
496} 719}
497 720
498my $extension_pkg = "extension0000";
499my %extension_pkg; 721my %extension_pkg;
500 722
501# load a single script into its own package, once only 723# load a single script into its own package, once only
502sub extension_package($) { 724sub extension_package($) {
503 my ($path) = @_; 725 my ($path) = @_;
504 726
505 $extension_pkg{$path} ||= do { 727 $extension_pkg{$path} ||= do {
506 my $pkg = "urxvt::" . ($extension_pkg++); 728 $path =~ /([^\/\\]+)$/;
729 my $pkg = $1;
730 $pkg =~ s/[^[:word:]]/_/g;
731 $pkg = "urxvt::ext::$pkg";
507 732
508 verbose 3, "loading extension '$path' into package '$pkg'"; 733 verbose 3, "loading extension '$path' into package '$pkg'";
509 734
510 open my $fh, "<:raw", $path 735 open my $fh, "<:raw", $path
511 or die "$path: $!"; 736 or die "$path: $!";
512 737
513 my $source = untaint 738 my $source =
514 "package $pkg; use strict; use utf8;\n" 739 "package $pkg; use strict; use utf8;\n"
515 . "use base urxvt::term::extension::;\n"
516 . "#line 1 \"$path\"\n{\n" 740 . "#line 1 \"$path\"\n{\n"
517 . (do { local $/; <$fh> }) 741 . (do { local $/; <$fh> })
518 . "\n};\n1"; 742 . "\n};\n1";
519 743
520 eval $source 744 eval $source
534 if ($htype == 0) { # INIT 758 if ($htype == 0) { # INIT
535 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 759 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
536 760
537 my %ext_arg; 761 my %ext_arg;
538 762
763 {
764 my @init = @TERM_INIT;
765 @TERM_INIT = ();
766 $_->($TERM) for @init;
767 my @pkg = @TERM_EXT;
768 @TERM_EXT = ();
769 $TERM->register_package ($_) for @pkg;
770 }
771
539 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 772 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
540 if ($_ eq "default") { 773 if ($_ eq "default") {
541 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 774 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
542 } elsif (/^-(.*)$/) { 775 } elsif (/^-(.*)$/) {
543 delete $ext_arg{$1}; 776 delete $ext_arg{$1};
544 } elsif (/^([^<]+)<(.*)>$/) { 777 } elsif (/^([^<]+)<(.*)>$/) {
569 if $verbosity >= 10; 802 if $verbosity >= 10;
570 803
571 keys %$cb; 804 keys %$cb;
572 805
573 while (my ($pkg, $cb) = each %$cb) { 806 while (my ($pkg, $cb) = each %$cb) {
574 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 807 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
575 and last; 808 $retval ||= $retval_;
576 809
577 if ($@) { 810 if ($@) {
578 $TERM->ungrab; # better to lose the grab than the session 811 $TERM->ungrab; # better to lose the grab than the session
579 warn $@; 812 warn $@;
580 } 813 }
581 } 814 }
815
816 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
817 if $verbosity >= 11;
582 } 818 }
583 819
584 if ($htype == 1) { # DESTROY 820 if ($htype == 1) { # DESTROY
585 if (my $hook = delete $TERM->{_hook}) {
586 for my $htype (0..$#$hook) {
587 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
588 or set_should_invoke $htype, 0;
589 }
590 }
591
592 # clear package objects 821 # clear package objects
593 %$_ = () for values %{ $TERM->{_pkg} }; 822 %$_ = () for values %{ $TERM->{_pkg} };
594 823
595 # clear package 824 # clear package
596 %$TERM = (); 825 %$TERM = ();
610 while (my ($name, $cb) = each %hook) { 839 while (my ($name, $cb) = each %hook) {
611 my $htype = $HOOKTYPE{uc $name}; 840 my $htype = $HOOKTYPE{uc $name};
612 defined $htype 841 defined $htype
613 or Carp::croak "unsupported hook type '$name'"; 842 or Carp::croak "unsupported hook type '$name'";
614 843
844 $self->set_should_invoke ($htype, +1)
615 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 845 unless exists $self->{term}{_hook}[$htype]{$pkg};
616 $hook_count[$htype]++
617 or urxvt::set_should_invoke $htype, 1;
618 }
619 846
620 $self->{term}{_hook}[$htype]{$pkg} = $cb; 847 $self->{term}{_hook}[$htype]{$pkg} = $cb;
621 } 848 }
622} 849}
623 850
628 for my $name (@hook) { 855 for my $name (@hook) {
629 my $htype = $HOOKTYPE{uc $name}; 856 my $htype = $HOOKTYPE{uc $name};
630 defined $htype 857 defined $htype
631 or Carp::croak "unsupported hook type '$name'"; 858 or Carp::croak "unsupported hook type '$name'";
632 859
860 $self->set_should_invoke ($htype, -1)
633 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 861 if delete $self->{term}{_hook}[$htype]{$pkg};
634 --$hook_count[$htype]
635 or urxvt::set_should_invoke $htype, 0;
636 }
637 } 862 }
638} 863}
639 864
640our $AUTOLOAD; 865our $AUTOLOAD;
641 866
672 897
673=head2 The C<urxvt::anyevent> Class 898=head2 The C<urxvt::anyevent> Class
674 899
675The sole purpose of this class is to deliver an interface to the 900The sole purpose of this class is to deliver an interface to the
676C<AnyEvent> module - any module using it will work inside urxvt without 901C<AnyEvent> module - any module using it will work inside urxvt without
677further work. The only exception is that you cannot wait on condition 902further programming. The only exception is that you cannot wait on
678variables, but non-blocking condvar use is ok. What this means is that you 903condition variables, but non-blocking condvar use is ok. What this means
679cannot use blocking APIs, but the non-blocking variant should work. 904is that you cannot use blocking APIs, but the non-blocking variant should
905work.
680 906
681=cut 907=cut
682 908
683our $VERSION = 1; 909our $VERSION = 1;
684 910
746# find on_xxx subs in the package and register them 972# find on_xxx subs in the package and register them
747# as hooks 973# as hooks
748sub register_package { 974sub register_package {
749 my ($self, $pkg, $argv) = @_; 975 my ($self, $pkg, $argv) = @_;
750 976
977 no strict 'refs';
978
979 urxvt::verbose 6, "register package $pkg to $self";
980
981 @{"$pkg\::ISA"} = urxvt::term::extension::;
982
751 my $proxy = bless { 983 my $proxy = bless {
752 _pkg => $pkg, 984 _pkg => $pkg,
753 argv => $argv, 985 argv => $argv,
754 }, $pkg; 986 }, $pkg;
755 Scalar::Util::weaken ($proxy->{term} = $self); 987 Scalar::Util::weaken ($proxy->{term} = $self);
761 $proxy->enable ($name => $ref); 993 $proxy->enable ($name => $ref);
762 } 994 }
763 } 995 }
764} 996}
765 997
998=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
999
1000Creates a new terminal, very similar as if you had started it with system
1001C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
1002hash which defines the environment of the new terminal.
1003
1004Croaks (and probably outputs an error message) if the new instance
1005couldn't be created. Returns C<undef> if the new instance didn't
1006initialise perl, and the terminal object otherwise. The C<init> and
1007C<start> hooks will be called during this call.
1008
1009=cut
1010
1011sub new {
1012 my ($class, $env, @args) = @_;
1013
1014 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
1015}
1016
766=item $term->destroy 1017=item $term->destroy
767 1018
768Destroy the terminal object (close the window, free resources etc.). 1019Destroy the terminal object (close the window, free resources
1020etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1021watchers (timers, io watchers) are still active.
1022
1023=item $term->exec_async ($cmd[, @args])
1024
1025Works like the combination of the C<fork>/C<exec> builtins, which executes
1026("starts") programs in the background. This function takes care of setting
1027the user environment before exec'ing the command (e.g. C<PATH>) and should
1028be preferred over explicit calls to C<exec> or C<system>.
1029
1030Returns the pid of the subprocess or C<undef> on error.
1031
1032=cut
1033
1034sub exec_async {
1035 my $self = shift;
1036
1037 my $pid = fork;
1038
1039 return $pid
1040 if !defined $pid or $pid;
1041
1042 %ENV = %{ $self->env };
1043
1044 exec @_;
1045 urxvt::_exit 255;
1046}
769 1047
770=item $isset = $term->option ($optval[, $set]) 1048=item $isset = $term->option ($optval[, $set])
771 1049
772Returns true if the option specified by C<$optval> is enabled, and 1050Returns true if the option specified by C<$optval> is enabled, and
773optionally change it. All option values are stored by name in the hash 1051optionally change it. All option values are stored by name in the hash
776Here is a a likely non-exhaustive list of option names, please see the 1054Here is a a likely non-exhaustive list of option names, please see the
777source file F</src/optinc.h> to see the actual list: 1055source file F</src/optinc.h> to see the actual list:
778 1056
779 borderLess console cursorBlink cursorUnderline hold iconic insecure 1057 borderLess console cursorBlink cursorUnderline hold iconic insecure
780 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1058 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
781 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1059 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
782 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1060 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
783 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1061 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
784 tripleclickwords utmpInhibit visualBell 1062 transparent tripleclickwords utmpInhibit visualBell
785 1063
786=item $value = $term->resource ($name[, $newval]) 1064=item $value = $term->resource ($name[, $newval])
787 1065
788Returns the current resource value associated with a given name and 1066Returns the current resource value associated with a given name and
789optionally sets a new value. Setting values is most useful in the C<init> 1067optionally sets a new value. Setting values is most useful in the C<init>
806 1084
807 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1085 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
808 borderLess color cursorBlink cursorUnderline cutchars delete_key 1086 borderLess color cursorBlink cursorUnderline cutchars delete_key
809 display_name embed ext_bwidth fade font geometry hold iconName 1087 display_name embed ext_bwidth fade font geometry hold iconName
810 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1088 imFont imLocale inputMethod insecure int_bwidth intensityStyles
811 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1089 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
812 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1090 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
813 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1091 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
814 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1092 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
815 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1093 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
816 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1094 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
817 shade term_name title transparent transparent_all tripleclickwords 1095 secondaryScreen secondaryScroll selectstyle shade term_name title
818 utmpInhibit visualBell 1096 transient_for transparent transparent_all tripleclickwords utmpInhibit
1097 visualBell
819 1098
820=cut 1099=cut
821 1100
822sub resource($$;$) { 1101sub resource($$;$) {
823 my ($self, $name) = (shift, shift); 1102 my ($self, $name) = (shift, shift);
824 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1103 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
825 &urxvt::term::_resource 1104 &urxvt::term::_resource
826} 1105}
827 1106
1107=item $value = $term->x_resource ($pattern)
1108
1109Returns the X-Resource for the given pattern, excluding the program or
1110class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1111same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1112resource with that pattern exists.
1113
1114This method should only be called during the C<on_start> hook, as there is
1115only one resource database per display, and later invocations might return
1116the wrong resources.
1117
828=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1118=item $success = $term->parse_keysym ($keysym_spec, $command_string)
829 1119
830Adds a keymap translation exactly as specified via a resource. See the 1120Adds a keymap translation exactly as specified via a resource. See the
831C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1121C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
832 1122
847=item ($row, $col) = $term->selection_end ([$row, $col]) 1137=item ($row, $col) = $term->selection_end ([$row, $col])
848 1138
849Return the current values of the selection mark, begin or end positions, 1139Return the current values of the selection mark, begin or end positions,
850and optionally set them to new values. 1140and optionally set them to new values.
851 1141
1142=item $term->selection_make ($eventtime[, $rectangular])
1143
1144Tries to make a selection as set by C<selection_beg> and
1145C<selection_end>. If C<$rectangular> is true (default: false), a
1146rectangular selection will be made. This is the prefered function to make
1147a selection.
1148
852=item $success = $term->selection_grab ($eventtime) 1149=item $success = $term->selection_grab ($eventtime)
853 1150
854Try to request the primary selection from the server (for example, as set 1151Try to request the primary selection text from the server (for example, as
855by the next method). 1152set by the next method). No visual feedback will be given. This function
1153is mostly useful from within C<on_sel_grab> hooks.
856 1154
857=item $oldtext = $term->selection ([$newtext]) 1155=item $oldtext = $term->selection ([$newtext])
858 1156
859Return the current selection text and optionally replace it by C<$newtext>. 1157Return the current selection text and optionally replace it by C<$newtext>.
860 1158
953Convert the given locale-encoded octets into a perl string. 1251Convert the given locale-encoded octets into a perl string.
954 1252
955=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1253=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
956 1254
957XORs the rendition values in the given span with the provided value 1255XORs the rendition values in the given span with the provided value
958(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1256(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
959to the selection. 1257refresh hooks to provide effects similar to the selection.
960 1258
961=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1259=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
962 1260
963Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1261Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
964whitespace will additionally be xored with the C<$rstyle2>, which defaults 1262whitespace will additionally be xored with the C<$rstyle2>, which defaults
965to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1263to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
966it instead. 1264it instead. Both styles I<MUST NOT> contain font styles.
967 1265
968=item $term->scr_bell 1266=item $term->scr_bell
969 1267
970Ring the bell! 1268Ring the bell!
971 1269
978 1276
979Normally its not a good idea to use this function, as programs might be 1277Normally its not a good idea to use this function, as programs might be
980confused by changes in cursor position or scrolling. Its useful inside a 1278confused by changes in cursor position or scrolling. Its useful inside a
981C<on_add_lines> hook, though. 1279C<on_add_lines> hook, though.
982 1280
1281=item $term->scr_change_screen ($screen)
1282
1283Switch to given screen - 0 primary, 1 secondary.
1284
983=item $term->cmd_parse ($octets) 1285=item $term->cmd_parse ($octets)
984 1286
985Similar to C<scr_add_lines>, but the argument must be in the 1287Similar to C<scr_add_lines>, but the argument must be in the
986locale-specific encoding of the terminal and can contain command sequences 1288locale-specific encoding of the terminal and can contain command sequences
987(escape codes) that will be interpreted. 1289(escape codes) that will be interpreted.
1005 1307
1006=item $windowid = $term->vt 1308=item $windowid = $term->vt
1007 1309
1008Return the window id of the terminal window. 1310Return the window id of the terminal window.
1009 1311
1312=item $term->vt_emask_add ($x_event_mask)
1313
1314Adds the specified events to the vt event mask. Useful e.g. when you want
1315to receive pointer events all the times:
1316
1317 $term->vt_emask_add (urxvt::PointerMotionMask);
1318
1010=item $window_width = $term->width 1319=item $window_width = $term->width
1011 1320
1012=item $window_height = $term->height 1321=item $window_height = $term->height
1013 1322
1014=item $font_width = $term->fwidth 1323=item $font_width = $term->fwidth
1027 1336
1028=item $max_scrollback = $term->saveLines 1337=item $max_scrollback = $term->saveLines
1029 1338
1030=item $nrow_plus_saveLines = $term->total_rows 1339=item $nrow_plus_saveLines = $term->total_rows
1031 1340
1032=item $lines_in_scrollback = $term->nsaved 1341=item $topmost_scrollback_row = $term->top_row
1033 1342
1034Return various integers describing terminal characteristics. 1343Return various integers describing terminal characteristics.
1035 1344
1345=item $x_display = $term->display_id
1346
1347Return the DISPLAY used by rxvt-unicode.
1348
1036=item $lc_ctype = $term->locale 1349=item $lc_ctype = $term->locale
1037 1350
1038Returns the LC_CTYPE category string used by this rxvt-unicode. 1351Returns the LC_CTYPE category string used by this rxvt-unicode.
1039 1352
1040=item $x_display = $term->display_id 1353=item $env = $term->env
1041 1354
1042Return the DISPLAY used by rxvt-unicode. 1355Returns a copy of the environment in effect for the terminal as a hashref
1356similar to C<\%ENV>.
1357
1358=cut
1359
1360sub env {
1361 if (my $env = $_[0]->_env) {
1362 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1363 } else {
1364 +{ %ENV }
1365 }
1366}
1043 1367
1044=item $modifiermask = $term->ModLevel3Mask 1368=item $modifiermask = $term->ModLevel3Mask
1045 1369
1046=item $modifiermask = $term->ModMetaMask 1370=item $modifiermask = $term->ModMetaMask
1047 1371
1048=item $modifiermask = $term->ModNumLockMask 1372=item $modifiermask = $term->ModNumLockMask
1049 1373
1050Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1374Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1051AltGr), the meta key (often Alt) and the num lock key, if applicable. 1375AltGr), the meta key (often Alt) and the num lock key, if applicable.
1052 1376
1377=item $screen = $term->current_screen
1378
1379Returns the currently displayed screen (0 primary, 1 secondary).
1380
1053=item $view_start = $term->view_start ([$newvalue]) 1381=item $view_start = $term->view_start ([$newvalue])
1054 1382
1055Returns the negative row number of the topmost line. Minimum value is 1383Returns the row number of the topmost displayed line. Maximum value is
1056C<0>, which displays the normal terminal contents. Larger values scroll 1384C<0>, which displays the normal terminal contents. Lower values scroll
1057this many lines into the scrollback buffer. 1385this many lines into the scrollback buffer.
1058 1386
1059=item $term->want_refresh 1387=item $term->want_refresh
1060 1388
1061Requests a screen refresh. At the next opportunity, rxvt-unicode will 1389Requests a screen refresh. At the next opportunity, rxvt-unicode will
1075If C<$new_text> is specified, it will replace characters in the current 1403If C<$new_text> is specified, it will replace characters in the current
1076line, starting at column C<$start_col> (default C<0>), which is useful 1404line, starting at column C<$start_col> (default C<0>), which is useful
1077to replace only parts of a line. The font index in the rendition will 1405to replace only parts of a line. The font index in the rendition will
1078automatically be updated. 1406automatically be updated.
1079 1407
1080C<$text> is in a special encoding: tabs and wide characters that use more 1408C<$text> is in a special encoding: tabs and wide characters that use
1081than one cell when displayed are padded with urxvt::NOCHAR characters 1409more than one cell when displayed are padded with C<$urxvt::NOCHAR>
1082(C<chr 65535>). Characters with combining characters and other characters 1410characters. Characters with combining characters and other characters that
1083that do not fit into the normal tetx encoding will be replaced with 1411do not fit into the normal tetx encoding will be replaced with characters
1084characters in the private use area. 1412in the private use area.
1085 1413
1086You have to obey this encoding when changing text. The advantage is 1414You have to obey this encoding when changing text. The advantage is
1087that C<substr> and similar functions work on screen cells and not on 1415that C<substr> and similar functions work on screen cells and not on
1088characters. 1416characters.
1089 1417
1140Return the row number of the first/last row of the line, respectively. 1468Return the row number of the first/last row of the line, respectively.
1141 1469
1142=item $offset = $line->offset_of ($row, $col) 1470=item $offset = $line->offset_of ($row, $col)
1143 1471
1144Returns the character offset of the given row|col pair within the logical 1472Returns the character offset of the given row|col pair within the logical
1145line. 1473line. Works for rows outside the line, too, and returns corresponding
1474offsets outside the string.
1146 1475
1147=item ($row, $col) = $line->coord_of ($offset) 1476=item ($row, $col) = $line->coord_of ($offset)
1148 1477
1149Translates a string offset into terminal coordinates again. 1478Translates a string offset into terminal coordinates again.
1150 1479
1263 1592
1264Calls XUngrab for the most recent grab. Is called automatically on 1593Calls XUngrab for the most recent grab. Is called automatically on
1265evaluation errors, as it is better to lose the grab in the error case as 1594evaluation errors, as it is better to lose the grab in the error case as
1266the session. 1595the session.
1267 1596
1597=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1598
1599=item $atom_name = $term->XGetAtomName ($atom)
1600
1601=item @atoms = $term->XListProperties ($window)
1602
1603=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1604
1605=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1606
1607=item $term->XDeleteProperty ($window, $property)
1608
1609=item $window = $term->DefaultRootWindow
1610
1611=item $term->XReparentWindow ($window, $parent, [$x, $y])
1612
1613=item $term->XMapWindow ($window)
1614
1615=item $term->XUnmapWindow ($window)
1616
1617=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1618
1619=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1620
1621=item $term->XChangeInput ($window, $add_events[, $del_events])
1622
1623Various X or X-related functions. The C<$term> object only serves as
1624the source of the display, otherwise those functions map more-or-less
1625directory onto the X functions of the same name.
1626
1268=back 1627=back
1269 1628
1270=cut 1629=cut
1271 1630
1272package urxvt::popup; 1631package urxvt::popup;
1286 1645
1287 $item->{render} ||= sub { $_[0]{text} }; 1646 $item->{render} ||= sub { $_[0]{text} };
1288 1647
1289 push @{ $self->{item} }, $item; 1648 push @{ $self->{item} }, $item;
1290} 1649}
1650
1651=item $popup->add_title ($title)
1652
1653Adds a non-clickable title to the popup.
1654
1655=cut
1656
1657sub add_title {
1658 my ($self, $title) = @_;
1659
1660 $self->add_item ({
1661 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1662 text => $title,
1663 activate => sub { },
1664 });
1665}
1666
1667=item $popup->add_separator ([$sepchr])
1668
1669Creates a separator, optionally using the character given as C<$sepchr>.
1670
1671=cut
1291 1672
1292sub add_separator { 1673sub add_separator {
1293 my ($self, $sep) = @_; 1674 my ($self, $sep) = @_;
1294 1675
1295 $sep ||= "="; 1676 $sep ||= "=";
1300 render => sub { $sep x $self->{term}->ncol }, 1681 render => sub { $sep x $self->{term}->ncol },
1301 activate => sub { }, 1682 activate => sub { },
1302 }); 1683 });
1303} 1684}
1304 1685
1305sub add_title { 1686=item $popup->add_button ($text, $cb)
1306 my ($self, $title) = @_;
1307 1687
1308 $self->add_item ({ 1688Adds a clickable button to the popup. C<$cb> is called whenever it is
1309 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, 1689selected.
1310 text => $title, 1690
1311 activate => sub { }, 1691=cut
1312 });
1313}
1314 1692
1315sub add_button { 1693sub add_button {
1316 my ($self, $text, $cb) = @_; 1694 my ($self, $text, $cb) = @_;
1317 1695
1318 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1696 $self->add_item ({ type => "button", text => $text, activate => $cb});
1319} 1697}
1698
1699=item $popup->add_toggle ($text, $cb, $initial_value)
1700
1701Adds a toggle/checkbox item to the popup. Teh callback gets called
1702whenever it gets toggled, with a boolean indicating its value as its first
1703argument.
1704
1705=cut
1320 1706
1321sub add_toggle { 1707sub add_toggle {
1322 my ($self, $text, $cb, $value) = @_; 1708 my ($self, $text, $cb, $value) = @_;
1323 1709
1324 my $item; $item = { 1710 my $item; $item = {
1325 type => "button", 1711 type => "button",
1326 text => " $text", 1712 text => " $text",
1327 value => $value, 1713 value => $value,
1328 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1714 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1329 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1715 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1330 }; 1716 };
1331 1717
1332 $self->add_item ($item); 1718 $self->add_item ($item);
1333} 1719}
1720
1721=item $popup->show
1722
1723Displays the popup (which is initially hidden).
1724
1725=cut
1334 1726
1335sub show { 1727sub show {
1336 my ($self) = @_; 1728 my ($self) = @_;
1337 1729
1338 local $urxvt::popup::self = $self; 1730 local $urxvt::popup::self = $self;
1339 1731
1732 my $env = $self->{term}->env;
1733 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1734 delete $env->{LC_ALL};
1340 local $ENV{LC_ALL} = $self->{term}->locale; 1735 $env->{LC_CTYPE} = $self->{term}->locale;
1341 1736
1342 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1737 urxvt::term->new ($env, "popup",
1738 "--perl-lib" => "", "--perl-ext-common" => "",
1739 "-pty-fd" => -1, "-sl" => 0,
1740 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1343 "--transient-for" => $self->{term}->parent, 1741 "--transient-for" => $self->{term}->parent,
1344 "-display" => $self->{term}->display_id, 1742 "-display" => $self->{term}->display_id,
1345 "-pe" => "urxvt-popup") 1743 "-pe" => "urxvt-popup")
1346 or die "unable to create popup window\n"; 1744 or die "unable to create popup window\n";
1347} 1745}
1348 1746
1349sub DESTROY { 1747sub DESTROY {
1350 my ($self) = @_; 1748 my ($self) = @_;
1351 1749
1352 delete $self->{term}{_destroy}{$self}; 1750 delete $self->{term}{_destroy}{$self};
1353 $self->{term}->ungrab; 1751 $self->{term}->ungrab;
1354} 1752}
1753
1754=back
1755
1756=cut
1757
1758package urxvt::watcher;
1759
1760@urxvt::timer::ISA = __PACKAGE__;
1761@urxvt::iow::ISA = __PACKAGE__;
1762@urxvt::pw::ISA = __PACKAGE__;
1763@urxvt::iw::ISA = __PACKAGE__;
1355 1764
1356=head2 The C<urxvt::timer> Class 1765=head2 The C<urxvt::timer> Class
1357 1766
1358This class implements timer watchers/events. Time is represented as a 1767This class implements timer watchers/events. Time is represented as a
1359fractional number of seconds since the epoch. Example: 1768fractional number of seconds since the epoch. Example:
1397Start the timer. 1806Start the timer.
1398 1807
1399=item $timer = $timer->start ($tstamp) 1808=item $timer = $timer->start ($tstamp)
1400 1809
1401Set the event trigger time to C<$tstamp> and start the timer. 1810Set the event trigger time to C<$tstamp> and start the timer.
1811
1812=item $timer = $timer->after ($delay)
1813
1814Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1402 1815
1403=item $timer = $timer->stop 1816=item $timer = $timer->stop
1404 1817
1405Stop the timer. 1818Stop the timer.
1406 1819
1453 1866
1454Stop watching for events on the given filehandle. 1867Stop watching for events on the given filehandle.
1455 1868
1456=back 1869=back
1457 1870
1871=head2 The C<urxvt::iw> Class
1872
1873This class implements idle watchers, that get called automatically when
1874the process is idle. They should return as fast as possible, after doing
1875some useful work.
1876
1877=over 4
1878
1879=item $iw = new urxvt::iw
1880
1881Create a new idle watcher object in stopped state.
1882
1883=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1884
1885Set the callback to be called when the watcher triggers.
1886
1887=item $timer = $timer->start
1888
1889Start the watcher.
1890
1891=item $timer = $timer->stop
1892
1893Stop the watcher.
1894
1895=back
1896
1897=head2 The C<urxvt::pw> Class
1898
1899This class implements process watchers. They create an event whenever a
1900process exits, after which they stop automatically.
1901
1902 my $pid = fork;
1903 ...
1904 $term->{pw} = urxvt::pw
1905 ->new
1906 ->start ($pid)
1907 ->cb (sub {
1908 my ($pw, $exit_status) = @_;
1909 ...
1910 });
1911
1912=over 4
1913
1914=item $pw = new urxvt::pw
1915
1916Create a new process watcher in stopped state.
1917
1918=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1919
1920Set the callback to be called when the timer triggers.
1921
1922=item $pw = $timer->start ($pid)
1923
1924Tells the wqtcher to start watching for process C<$pid>.
1925
1926=item $pw = $pw->stop
1927
1928Stop the watcher.
1929
1930=back
1931
1458=head1 ENVIRONMENT 1932=head1 ENVIRONMENT
1459 1933
1460=head2 URXVT_PERL_VERBOSITY 1934=head2 URXVT_PERL_VERBOSITY
1461 1935
1462This variable controls the verbosity level of the perl extension. Higher 1936This variable controls the verbosity level of the perl extension. Higher
1466 1940
1467=item == 0 - fatal messages 1941=item == 0 - fatal messages
1468 1942
1469=item >= 3 - script loading and management 1943=item >= 3 - script loading and management
1470 1944
1471=item >=10 - all events received 1945=item >=10 - all called hooks
1946
1947=item >=11 - hook reutrn values
1472 1948
1473=back 1949=back
1474 1950
1475=head1 AUTHOR 1951=head1 AUTHOR
1476 1952

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