1 | =head1 NAME |
1 | =head1 NAME |
2 | |
2 | |
3 | rxvtperl - rxvt-unicode's embedded perl interpreter |
3 | @@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
4 | |
4 | |
5 | =head1 SYNOPSIS |
5 | =head1 SYNOPSIS |
6 | |
6 | |
7 | * Put your scripts into F<@@RXVT_LIBDIR@@/urxvt/perl-ext/>, they will be loaded automatically. |
7 | # create a file grab_test in $HOME: |
8 | |
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9 | * Scripts are evaluated in a 'use strict' and 'use utf8' environment, and |
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10 | thus must be encoded as UTF-8. |
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11 | |
8 | |
12 | sub on_sel_grab { |
9 | sub on_sel_grab { |
13 | warn "you selected ", $_[0]->selection; |
10 | warn "you selected ", $_[0]->selection; |
14 | () |
11 | () |
15 | } |
12 | } |
16 | |
13 | |
17 | 1 |
14 | # start a @@RXVT_NAME@@ using it: |
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15 | |
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16 | @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test |
18 | |
17 | |
19 | =head1 DESCRIPTION |
18 | =head1 DESCRIPTION |
20 | |
19 | |
21 | On startup, @@RXVT_NAME@@ will scan F<@@RXVT_LIBDIR@@/urxvt/perl-ext/> |
20 | Everytime a terminal object gets created, scripts specified via the |
22 | for files and will load them. Everytime a terminal object gets created, |
21 | C<perl> resource are loaded and associated with it. |
23 | the directory specified by the C<perl-lib> resource will be additionally |
22 | |
24 | scanned. |
23 | Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
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24 | thus must be encoded as UTF-8. |
25 | |
25 | |
26 | Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
26 | Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
27 | scripts will be shared for all terminals. |
27 | scripts will be shared (But not enabled) for all terminals. |
28 | |
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29 | Hooks in scripts specified by C<perl-lib> will only be called for the |
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30 | terminals created with that specific option value. |
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31 | |
28 | |
32 | =head2 General API Considerations |
29 | =head2 General API Considerations |
33 | |
30 | |
34 | All objects (such as terminals, time watchers etc.) are typical |
31 | All objects (such as terminals, time watchers etc.) are typical |
35 | reference-to-hash objects. The hash can be used to store anything you |
32 | reference-to-hash objects. The hash can be used to store anything you |
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126 | code is run after this hook, and takes precedence. |
123 | code is run after this hook, and takes precedence. |
127 | |
124 | |
128 | =item on_refresh_end $term |
125 | =item on_refresh_end $term |
129 | |
126 | |
130 | Called just after the screen gets redrawn. See C<on_refresh_begin>. |
127 | Called just after the screen gets redrawn. See C<on_refresh_begin>. |
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128 | |
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129 | =item on_keyboard_command $term, $string |
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130 | |
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131 | Called whenever the user presses a key combination that has a |
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132 | C<perl:string> action bound to it (see description of the B<keysym> |
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133 | resource in the @@RXVT_NAME@@(1) manpage). |
131 | |
134 | |
132 | =back |
135 | =back |
133 | |
136 | |
134 | =head2 Functions in the C<urxvt> Package |
137 | =head2 Functions in the C<urxvt> Package |
135 | |
138 | |
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174 | unless $msg =~ /\n$/; |
177 | unless $msg =~ /\n$/; |
175 | urxvt::warn ($msg); |
178 | urxvt::warn ($msg); |
176 | }; |
179 | }; |
177 | } |
180 | } |
178 | |
181 | |
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182 | my @hook_count; |
179 | my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; |
183 | my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; |
180 | |
184 | |
181 | sub verbose { |
185 | sub verbose { |
182 | my ($level, $msg) = @_; |
186 | my ($level, $msg) = @_; |
183 | warn "$msg\n" if $level < $verbosity; |
187 | warn "$msg\n" if $level <= $verbosity; |
184 | } |
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185 | |
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186 | my %hook_global; |
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187 | my @hook_count; |
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188 | |
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189 | # called by the rxvt core |
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190 | sub invoke { |
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191 | local $term = shift; |
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192 | my $htype = shift; |
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193 | |
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194 | verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" |
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195 | if $verbosity >= 10; |
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196 | |
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197 | for my $cb ($hook_global{_hook}[$htype], $term->{_hook}[$htype]) { |
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198 | $cb or next; |
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199 | |
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200 | while (my ($k, $v) = each %$cb) { |
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201 | return 1 if $v->($term, @_); |
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202 | } |
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203 | } |
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204 | |
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205 | 0 |
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206 | } |
188 | } |
207 | |
189 | |
208 | # find on_xxx subs in the package and register them |
190 | # find on_xxx subs in the package and register them |
209 | # as hooks |
191 | # as hooks |
210 | sub register_package($) { |
192 | sub register_package($) { |
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228 | # load a single script into its own package, once only |
210 | # load a single script into its own package, once only |
229 | sub script_package($) { |
211 | sub script_package($) { |
230 | my ($path) = @_; |
212 | my ($path) = @_; |
231 | |
213 | |
232 | $script_pkg{$path} ||= do { |
214 | $script_pkg{$path} ||= do { |
233 | my $pkg = $script_pkg++; |
215 | my $pkg = "urxvt::" . ($script_pkg++); |
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216 | |
234 | verbose 3, "loading script '$path' into package '$pkg'"; |
217 | verbose 3, "loading script '$path' into package '$pkg'"; |
235 | |
218 | |
236 | open my $fh, "<:raw", $path |
219 | open my $fh, "<:raw", $path |
237 | or die "$path: $!"; |
220 | or die "$path: $!"; |
238 | |
221 | |
239 | eval "package $pkg; use strict; use utf8;\n" |
222 | my $source = "package $pkg; use strict; use utf8;\n" |
240 | . "#line 1 \"$path\"\n" |
223 | . "#line 1 \"$path\"\n{\n" |
241 | . do { local $/; <$fh> } |
224 | . (do { local $/; <$fh> }) |
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225 | . "\n};\n1"; |
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226 | |
242 | or die "$path: $@"; |
227 | eval $source or die "$path: $@"; |
243 | |
228 | |
244 | $pkg |
229 | $pkg |
245 | } |
230 | } |
246 | } |
231 | } |
247 | |
232 | |
248 | sub load_scripts($) { |
233 | # called by the rxvt core |
249 | my ($dir) = @_; |
234 | sub invoke { |
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235 | local $term = shift; |
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236 | my $htype = shift; |
250 | |
237 | |
251 | verbose 3, "loading scripts from '$dir'"; |
238 | if ($htype == 0) { # INIT |
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239 | my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); |
252 | |
240 | |
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241 | for my $ext (split /:/, $term->resource ("perl_ext")) { |
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242 | my @files = grep -f $_, map "$_/$ext", @dirs; |
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243 | |
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244 | if (@files) { |
253 | register_package script_package $_ |
245 | register_package script_package $files[0]; |
254 | for grep -f $_, |
246 | } else { |
255 | <$dir/*>; |
247 | warn "perl extension '$ext' not found in perl library search path\n"; |
256 | } |
248 | } |
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249 | } |
257 | |
250 | |
258 | sub on_init { |
251 | } elsif ($htype == 1) { # DESTROY |
259 | my ($term) = @_; |
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260 | |
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261 | my $libdir = $term->resource ("perl_lib"); |
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262 | |
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263 | load_scripts $libdir |
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264 | if defined $libdir; |
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265 | } |
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266 | |
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267 | sub on_destroy { |
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268 | my ($term) = @_; |
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269 | |
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270 | my $hook = $term->{_hook} |
252 | if (my $hook = $term->{_hook}) { |
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253 | for my $htype (0..$#$hook) { |
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254 | $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } |
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255 | or set_should_invoke $htype, 0; |
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256 | } |
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257 | } |
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258 | } |
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259 | |
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260 | my $cb = $term->{_hook}[$htype] |
271 | or return; |
261 | or return; |
272 | |
262 | |
273 | for my $htype (0..$#$hook) { |
263 | verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" |
274 | $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } |
264 | if $verbosity >= 10; |
275 | or set_should_invoke $htype, 0; |
265 | |
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266 | while (my ($k, $v) = each %$cb) { |
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267 | return 1 if $v->($term, @_); |
276 | } |
268 | } |
277 | } |
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278 | |
269 | |
279 | { |
270 | 0 |
280 | local $term = \%hook_global; |
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281 | |
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282 | register_package __PACKAGE__; |
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283 | load_scripts "$LIBDIR/perl-ext"; |
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284 | } |
271 | } |
285 | |
272 | |
286 | =back |
273 | =back |
287 | |
274 | |
288 | =head2 The C<urxvt::term> Class |
275 | =head2 The C<urxvt::term> Class |
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312 | |
299 | |
313 | answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
300 | answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
314 | borderLess color cursorBlink cursorUnderline cutchars delete_key |
301 | borderLess color cursorBlink cursorUnderline cutchars delete_key |
315 | display_name embed ext_bwidth fade font geometry hold iconName |
302 | display_name embed ext_bwidth fade font geometry hold iconName |
316 | imFont imLocale inputMethod insecure int_bwidth intensityStyles |
303 | imFont imLocale inputMethod insecure int_bwidth intensityStyles |
317 | italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 |
304 | italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier |
318 | modifier mouseWheelScrollPage name pastableTabs path perl perl_eval |
305 | mouseWheelScrollPage name pastableTabs path perl_eval perl_ext |
319 | perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd |
306 | perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd |
320 | reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating |
307 | reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating |
321 | scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput |
308 | scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput |
322 | scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle |
309 | scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle |
323 | shade term_name title transparent transparent_all tripleclickwords |
310 | shade term_name title transparent transparent_all tripleclickwords |
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403 | Convert the given locale-encoded octets into a perl string. |
390 | Convert the given locale-encoded octets into a perl string. |
404 | |
391 | |
405 | =item $term->tt_write ($octets) |
392 | =item $term->tt_write ($octets) |
406 | |
393 | |
407 | Write the octets given in C<$data> to the tty (i.e. as program input). To |
394 | Write the octets given in C<$data> to the tty (i.e. as program input). To |
408 | pass characters instead of octets, you should convetr you strings first to |
395 | pass characters instead of octets, you should convert your strings first |
409 | the locale-specific encoding using C<< $term->locale_encode >>. |
396 | to the locale-specific encoding using C<< $term->locale_encode >>. |
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397 | |
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398 | =item $nrow = $term->nrow |
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399 | |
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400 | =item $ncol = $term->ncol |
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401 | |
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402 | Return the number of rows/columns of the terminal window (i.e. as |
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403 | specified by C<-geometry>, excluding any scrollback). |
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404 | |
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405 | =item $nsaved = $term->nsaved |
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406 | |
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407 | Returns the number of lines in the scrollback buffer. |
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408 | |
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409 | =item $view_start = $term->view_start ([$newvalue]) |
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410 | |
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411 | Returns the negative row number of the topmost line. Minimum value is |
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412 | C<0>, which displays the normal terminal contents. Larger values scroll |
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413 | this many lines into the scrollback buffer. |
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414 | |
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415 | =item $term->want_refresh |
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416 | |
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417 | Requests a screen refresh. At the next opportunity, rxvt-unicode will |
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418 | compare the on-screen display with its stored representation. If they |
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419 | differ, it redraws the differences. |
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420 | |
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421 | Used after changing terminal contents to display them. |
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422 | |
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423 | =item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) |
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424 | |
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425 | Returns the text of the entire row with number C<$row_number>. Row C<0> |
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426 | is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost |
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427 | terminal line. The scrollback buffer starts at line C<-1> and extends to |
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428 | line C<< -$term->nsaved >>. |
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429 | |
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430 | If C<$new_text> is specified, it will replace characters in the current |
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431 | line, starting at column C<$start_col> (default C<0>), which is useful |
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432 | to replace only parts of a line. The font iindex in the rendition will |
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433 | automatically be updated. |
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434 | |
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435 | C<$text> is in a special encoding: tabs and wide characters that use more |
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436 | than one cell when displayed are padded with urxvt::NOCHAR characters |
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437 | (C<chr 65535>). Characters with combining characters and other characters |
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438 | that do not fit into the normal tetx encoding will be replaced with |
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439 | characters in the private use area. |
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440 | |
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441 | You have to obey this encoding when changing text. The advantage is |
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442 | that C<substr> and similar functions work on screen cells and not on |
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443 | characters. |
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444 | |
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445 | The methods C<< $term->special_encode >> and C<< $term->special_decode >> |
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446 | can be used to convert normal strings into this encoding and vice versa. |
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447 | |
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448 | =item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]]) |
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449 | |
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450 | Like C<< $term->ROW_t >>, but returns an arrayref with rendition |
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451 | bitsets. Rendition bitsets contain information about colour, font, font |
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452 | styles and similar information. See also C<< $term->ROW_t >>. |
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453 | |
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454 | When setting rendition, the font mask will be ignored. |
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455 | |
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456 | See the section on RENDITION, below. |
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457 | |
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458 | =item $length = $term->ROW_l ($row_number[, $new_length]) |
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459 | |
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460 | Returns the number of screen cells that are in use ("the line length"). If |
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461 | it is C<-1>, then the line is part of a multiple-row logical "line", which |
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462 | means all characters are in use and it is continued on the next row. |
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463 | |
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464 | =item $text = $term->special_encode $string |
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465 | |
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466 | Converts a perl string into the special encoding used by rxvt-unicode, |
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467 | where one character corresponds to one screen cell. See |
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468 | C<< $term->ROW_t >> for details. |
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469 | |
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470 | =item $string = $term->special_decode $text |
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471 | |
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472 | Converts rxvt-unicodes text reprsentation into a perl string. See |
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473 | C<< $term->ROW_t >> for details. |
410 | |
474 | |
411 | =back |
475 | =back |
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476 | |
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477 | =head2 RENDITION |
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478 | |
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479 | Rendition bitsets contain information about colour, font, font styles and |
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480 | similar information for each screen cell. |
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481 | |
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482 | The following "macros" deal with changes in rendition sets. You should |
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483 | never just create a bitset, you should always modify an existing one, |
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484 | as they contain important information required for correct operation of |
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485 | rxvt-unicode. |
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486 | |
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487 | =over 4 |
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488 | |
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489 | =item $rend = urxvt::DEFAULT_RSTYLE |
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490 | |
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491 | Returns the default rendition, as used when the terminal is starting up or |
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492 | being reset. Useful as a base |
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493 | |
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494 | =back |
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495 | |
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496 | =cut |
412 | |
497 | |
413 | =head2 The C<urxvt::timer> Class |
498 | =head2 The C<urxvt::timer> Class |
414 | |
499 | |
415 | This class implements timer watchers/events. Time is represented as a |
500 | This class implements timer watchers/events. Time is represented as a |
416 | fractional number of seconds since the epoch. Example: |
501 | fractional number of seconds since the epoch. Example: |