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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.7 by root, Mon Jan 2 19:05:05 2006 UTC vs.
Revision 1.18 by root, Tue Jan 3 02:01:27 2006 UTC

1=encoding utf8
2
1=head1 NAME 3=head1 NAME
2 4
3rxvtperl - rxvt-unicode's embedded perl interpreter 5@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter
4 6
5=head1 SYNOPSIS 7=head1 SYNOPSIS
6 8
7* Put your scripts into F<@@RXVT_LIBDIR@@/urxvt/perl-ext/>, they will be loaded automatically. 9 # create a file grab_test in $HOME:
8
9* Scripts are evaluated in a 'use strict' and 'use utf8' environment, and
10thus must be encoded as UTF-8.
11 10
12 sub on_sel_grab { 11 sub on_sel_grab {
13 warn "you selected ", $_[0]->selection; 12 warn "you selected ", $_[0]->selection;
14 () 13 ()
15 } 14 }
16 15
17 1 16 # start a @@RXVT_NAME@@ using it:
17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
18 19
19=head1 DESCRIPTION 20=head1 DESCRIPTION
20 21
21On startup, @@RXVT_NAME@@ will scan F<@@RXVT_LIBDIR@@/urxvt/perl-ext/> 22Everytime a terminal object gets created, scripts specified via the
22for files and will load them. Everytime a terminal object gets created, 23C<perl> resource are loaded and associated with it.
23the directory specified by the C<perl-lib> resource will be additionally 24
24scanned. 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26thus must be encoded as UTF-8.
25 27
26Each 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
27scripts will be shared for all terminals. 29scripts will be shared (but not enabled) for all terminals.
28 30
29Hooks in scripts specified by C<perl-lib> will only be called for the 31=head2 Prepackaged Extensions
30terminals created with that specific option value. 32
33This section describes the extensiosn delivered with this version. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35
36You can activate them like this:
37
38 @@RXVT_NAME@@ -pe <extensionname>
39
40=over 4
41
42=item selection
43
44Miscellaneous selection modifications.
45
46=over 4
47
48=item rot13
49
50Rot-13 the selection when activated. Used via keyboard trigger:
51
52 URxvt.keysym.C-M-r: perl:selection:rot13
53
54=back
55
56=item digital-clock
57
58Displays a very simple digital clock in the upper right corner of the
59window. Illustrates overwriting the refresh callbacks to create your own
60overlays or changes.
61
62=item simple-overlay-clock
63
64Displays a digital clock using the built-in overlay (colourful, useless).
65
66=back
31 67
32=head2 General API Considerations 68=head2 General API Considerations
33 69
34All objects (such as terminals, time watchers etc.) are typical 70All objects (such as terminals, time watchers etc.) are typical
35reference-to-hash objects. The hash can be used to store anything you 71reference-to-hash objects. The hash can be used to store anything you
127 163
128=item on_refresh_end $term 164=item on_refresh_end $term
129 165
130Called just after the screen gets redrawn. See C<on_refresh_begin>. 166Called just after the screen gets redrawn. See C<on_refresh_begin>.
131 167
168=item on_keyboard_command $term, $string
169
170Called whenever the user presses a key combination that has a
171C<perl:string> action bound to it (see description of the B<keysym>
172resource in the @@RXVT_NAME@@(1) manpage).
173
132=back 174=back
133 175
134=head2 Functions in the C<urxvt> Package 176=head2 Functions in the C<urxvt> Package
135 177
136=over 4 178=over 4
151correct place, e.g. on stderr of the connecting urxvtc client. 193correct place, e.g. on stderr of the connecting urxvtc client.
152 194
153=item $time = urxvt::NOW 195=item $time = urxvt::NOW
154 196
155Returns the "current time" (as per the event loop). 197Returns the "current time" (as per the event loop).
198
199=head2 RENDITION
200
201Rendition bitsets contain information about colour, font, font styles and
202similar information for each screen cell.
203
204The following "macros" deal with changes in rendition sets. You should
205never just create a bitset, you should always modify an existing one,
206as they contain important information required for correct operation of
207rxvt-unicode.
208
209=over 4
210
211=item $rend = urxvt::DEFAULT_RSTYLE
212
213Returns the default rendition, as used when the terminal is starting up or
214being reset. Useful as a base to start when creating renditions.
215
216=item $rend = urxvt::OVERLAY_RSTYLE
217
218Return the rendition mask used for overlays by default.
219
220=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
221
222Return the bit that enabled bold, italic, blink, reverse-video and
223underline, respectively. To enable such a style, just or it onto the
224bitset.
225
226=item $foreground = urxvt::GET_BASEFG $rend
227
228=item $background = urxvt::GET_BASEBG $rend
229
230Return the foreground/background colour index, respectively.
231
232=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
233
234=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
235
236Replace the foreground/background colour in the rendition mask with the
237specified one.
238
239=back
156 240
157=cut 241=cut
158 242
159package urxvt; 243package urxvt;
160 244
174 unless $msg =~ /\n$/; 258 unless $msg =~ /\n$/;
175 urxvt::warn ($msg); 259 urxvt::warn ($msg);
176 }; 260 };
177} 261}
178 262
263my @hook_count;
179my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 264my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
180 265
181sub verbose { 266sub verbose {
182 my ($level, $msg) = @_; 267 my ($level, $msg) = @_;
183 warn "$msg\n" if $level < $verbosity; 268 warn "$msg\n" if $level <= $verbosity;
184}
185
186my %hook_global;
187my @hook_count;
188
189# called by the rxvt core
190sub invoke {
191 local $term = shift;
192 my $htype = shift;
193
194 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
195 if $verbosity >= 10;
196
197 for my $cb ($hook_global{_hook}[$htype], $term->{_hook}[$htype]) {
198 $cb or next;
199
200 while (my ($k, $v) = each %$cb) {
201 return 1 if $v->($term, @_);
202 }
203 }
204
205 0
206} 269}
207 270
208# find on_xxx subs in the package and register them 271# find on_xxx subs in the package and register them
209# as hooks 272# as hooks
210sub register_package($) { 273sub register_package($) {
228# load a single script into its own package, once only 291# load a single script into its own package, once only
229sub script_package($) { 292sub script_package($) {
230 my ($path) = @_; 293 my ($path) = @_;
231 294
232 $script_pkg{$path} ||= do { 295 $script_pkg{$path} ||= do {
233 my $pkg = $script_pkg++; 296 my $pkg = "urxvt::" . ($script_pkg++);
297
234 verbose 3, "loading script '$path' into package '$pkg'"; 298 verbose 3, "loading script '$path' into package '$pkg'";
235 299
236 open my $fh, "<:raw", $path 300 open my $fh, "<:raw", $path
237 or die "$path: $!"; 301 or die "$path: $!";
238 302
239 eval "package $pkg; use strict; use utf8;\n" 303 my $source = "package $pkg; use strict; use utf8;\n"
240 . "#line 1 \"$path\"\n" 304 . "#line 1 \"$path\"\n{\n"
241 . do { local $/; <$fh> } 305 . (do { local $/; <$fh> })
306 . "\n};\n1";
307
242 or die "$path: $@"; 308 eval $source or die "$path: $@";
243 309
244 $pkg 310 $pkg
245 } 311 }
246} 312}
247 313
248sub load_scripts($) { 314# called by the rxvt core
249 my ($dir) = @_; 315sub invoke {
316 local $term = shift;
317 my $htype = shift;
250 318
251 verbose 3, "loading scripts from '$dir'"; 319 if ($htype == 0) { # INIT
320 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl");
252 321
322 for my $ext (split /:/, $term->resource ("perl_ext")) {
323 my @files = grep -f $_, map "$_/$ext", @dirs;
324
325 if (@files) {
253 register_package script_package $_ 326 register_package script_package $files[0];
254 for grep -f $_, 327 } else {
255 <$dir/*>; 328 warn "perl extension '$ext' not found in perl library search path\n";
256} 329 }
330 }
257 331
258sub on_init { 332 } elsif ($htype == 1) { # DESTROY
259 my ($term) = @_;
260
261 my $libdir = $term->resource ("perl_lib");
262
263 load_scripts $libdir
264 if defined $libdir;
265}
266
267sub on_destroy {
268 my ($term) = @_;
269
270 my $hook = $term->{_hook} 333 if (my $hook = $term->{_hook}) {
334 for my $htype (0..$#$hook) {
335 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
336 or set_should_invoke $htype, 0;
337 }
338 }
339 }
340
341 my $cb = $term->{_hook}[$htype]
271 or return; 342 or return;
272 343
273 for my $htype (0..$#$hook) { 344 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
274 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 345 if $verbosity >= 10;
275 or set_should_invoke $htype, 0; 346
347 while (my ($k, $v) = each %$cb) {
348 return 1 if $v->($term, @_);
276 } 349 }
277}
278 350
279{ 351 0
280 local $term = \%hook_global;
281
282 register_package __PACKAGE__;
283 load_scripts "$LIBDIR/perl-ext";
284} 352}
285 353
286=back 354=back
287 355
288=head2 The C<urxvt::term> Class 356=head2 The C<urxvt::term> Class
312 380
313 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 381 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
314 borderLess color cursorBlink cursorUnderline cutchars delete_key 382 borderLess color cursorBlink cursorUnderline cutchars delete_key
315 display_name embed ext_bwidth fade font geometry hold iconName 383 display_name embed ext_bwidth fade font geometry hold iconName
316 imFont imLocale inputMethod insecure int_bwidth intensityStyles 384 imFont imLocale inputMethod insecure int_bwidth intensityStyles
317 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 385 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
318 modifier mouseWheelScrollPage name pastableTabs path perl perl_eval 386 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext
319 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 387 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
320 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 388 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
321 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 389 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
322 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 390 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
323 shade term_name title transparent transparent_all tripleclickwords 391 shade term_name title transparent transparent_all tripleclickwords
403Convert the given locale-encoded octets into a perl string. 471Convert the given locale-encoded octets into a perl string.
404 472
405=item $term->tt_write ($octets) 473=item $term->tt_write ($octets)
406 474
407Write the octets given in C<$data> to the tty (i.e. as program input). To 475Write the octets given in C<$data> to the tty (i.e. as program input). To
408pass characters instead of octets, you should convetr you strings first to 476pass characters instead of octets, you should convert your strings first
409the locale-specific encoding using C<< $term->locale_encode >>. 477to the locale-specific encoding using C<< $term->locale_encode >>.
478
479=item $nrow = $term->nrow
480
481=item $ncol = $term->ncol
482
483Return the number of rows/columns of the terminal window (i.e. as
484specified by C<-geometry>, excluding any scrollback).
485
486=item $nsaved = $term->nsaved
487
488Returns the number of lines in the scrollback buffer.
489
490=item $view_start = $term->view_start ([$newvalue])
491
492Returns the negative row number of the topmost line. Minimum value is
493C<0>, which displays the normal terminal contents. Larger values scroll
494this many lines into the scrollback buffer.
495
496=item $term->want_refresh
497
498Requests a screen refresh. At the next opportunity, rxvt-unicode will
499compare the on-screen display with its stored representation. If they
500differ, it redraws the differences.
501
502Used after changing terminal contents to display them.
503
504=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
505
506Returns the text of the entire row with number C<$row_number>. Row C<0>
507is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
508terminal line. The scrollback buffer starts at line C<-1> and extends to
509line C<< -$term->nsaved >>.
510
511If C<$new_text> is specified, it will replace characters in the current
512line, starting at column C<$start_col> (default C<0>), which is useful
513to replace only parts of a line. The font index in the rendition will
514automatically be updated.
515
516C<$text> is in a special encoding: tabs and wide characters that use more
517than one cell when displayed are padded with urxvt::NOCHAR characters
518(C<chr 65535>). Characters with combining characters and other characters
519that do not fit into the normal tetx encoding will be replaced with
520characters in the private use area.
521
522You have to obey this encoding when changing text. The advantage is
523that C<substr> and similar functions work on screen cells and not on
524characters.
525
526The methods C<< $term->special_encode >> and C<< $term->special_decode >>
527can be used to convert normal strings into this encoding and vice versa.
528
529=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])
530
531Like C<< $term->ROW_t >>, but returns an arrayref with rendition
532bitsets. Rendition bitsets contain information about colour, font, font
533styles and similar information. See also C<< $term->ROW_t >>.
534
535When setting rendition, the font mask will be ignored.
536
537See the section on RENDITION, above.
538
539=item $length = $term->ROW_l ($row_number[, $new_length])
540
541Returns the number of screen cells that are in use ("the line length"). If
542it is C<-1>, then the line is part of a multiple-row logical "line", which
543means all characters are in use and it is continued on the next row.
544
545=item $text = $term->special_encode $string
546
547Converts a perl string into the special encoding used by rxvt-unicode,
548where one character corresponds to one screen cell. See
549C<< $term->ROW_t >> for details.
550
551=item $string = $term->special_decode $text
552
553Converts rxvt-unicodes text reprsentation into a perl string. See
554C<< $term->ROW_t >> for details.
410 555
411=back 556=back
412 557
413=head2 The C<urxvt::timer> Class 558=head2 The C<urxvt::timer> Class
414 559

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