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1 | =encoding utf8 |
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2 | |
1 | =head1 NAME |
3 | =head1 NAME |
2 | |
4 | |
3 | @@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
5 | @@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
4 | |
6 | |
5 | =head1 SYNOPSIS |
7 | =head1 SYNOPSIS |
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22 | |
24 | |
23 | Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
25 | Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
24 | thus must be encoded as UTF-8. |
26 | thus must be encoded as UTF-8. |
25 | |
27 | |
26 | Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
28 | Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
27 | scripts will be shared (But not enabled) for all terminals. |
29 | scripts will be shared (but not enabled) for all terminals. |
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30 | |
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31 | =head2 Prepackaged Extensions |
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32 | |
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33 | This section describes the extensiosn delivered with this version. You can |
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34 | find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. |
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35 | |
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36 | You can activate them like this: |
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37 | |
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38 | @@RXVT_NAME@@ -pe <extensionname> |
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39 | |
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40 | =over 4 |
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41 | |
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42 | =item selection |
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43 | |
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44 | Intelligent selection. This etxension tries to be more intelligent when the user |
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45 | extends selections (double-click). |
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46 | |
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47 | It also offers the following bindable event: |
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48 | |
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49 | =over 4 |
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50 | |
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51 | =item rot13 |
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52 | |
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53 | Rot-13 the selection when activated. Used via keyboard trigger: |
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54 | |
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55 | URxvt.keysym.C-M-r: perl:selection:rot13 |
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56 | |
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57 | =back |
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58 | |
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59 | =item digital-clock |
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60 | |
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61 | Displays a digital clock using the built-in overlay. |
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62 | |
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63 | =item example-refresh-hooks |
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64 | |
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65 | Displays a very simple digital clock in the upper right corner of the |
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66 | window. Illustrates overwriting the refresh callbacks to create your own |
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67 | overlays or changes. |
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68 | |
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69 | =back |
28 | |
70 | |
29 | =head2 General API Considerations |
71 | =head2 General API Considerations |
30 | |
72 | |
31 | All objects (such as terminals, time watchers etc.) are typical |
73 | All objects (such as terminals, time watchers etc.) are typical |
32 | reference-to-hash objects. The hash can be used to store anything you |
74 | reference-to-hash objects. The hash can be used to store anything you |
33 | like. All members starting with an underscore (such as C<_ptr> or |
75 | like. All members starting with an underscore (such as C<_ptr> or |
34 | C<_hook>) are reserved for internal uses and must not be accessed or |
76 | C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or |
35 | modified). |
77 | modified). |
36 | |
78 | |
37 | When objects are destroyed on the C++ side, the perl object hashes are |
79 | When objects are destroyed on the C++ side, the perl object hashes are |
38 | emptied, so its best to store related objects such as time watchers and |
80 | emptied, so its best to store related objects such as time watchers and |
39 | the like inside the terminal object so they get destroyed as soon as the |
81 | the like inside the terminal object so they get destroyed as soon as the |
40 | terminal is destroyed. |
82 | terminal is destroyed. |
41 | |
83 | |
42 | =head2 Hooks |
84 | =head2 Hooks |
43 | |
85 | |
44 | The following subroutines can be declared in loaded scripts, and will be called |
86 | The following subroutines can be declared in loaded scripts, and will be |
45 | whenever the relevant event happens. |
87 | called whenever the relevant event happens. |
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88 | |
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89 | The first argument passed to them is an object private to each terminal |
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90 | and extension package. You can call all C<urxvt::term> methods on it, but |
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91 | its not a real C<urxvt::term> object. Instead, the real C<urxvt::term> |
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92 | object that is shared between all packages is stored in the C<term> |
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93 | member. |
46 | |
94 | |
47 | All of them must return a boolean value. If it is true, then the event |
95 | All of them must return a boolean value. If it is true, then the event |
48 | counts as being I<consumed>, and the invocation of other hooks is skipped, |
96 | counts as being I<consumed>, and the invocation of other hooks is skipped, |
49 | and the relevant action might not be carried out by the C++ code. |
97 | and the relevant action might not be carried out by the C++ code. |
50 | |
98 | |
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82 | Called whenever a selection has been copied, but before the selection is |
130 | Called whenever a selection has been copied, but before the selection is |
83 | requested from the server. The selection text can be queried and changed |
131 | requested from the server. The selection text can be queried and changed |
84 | by calling C<< $term->selection >>. |
132 | by calling C<< $term->selection >>. |
85 | |
133 | |
86 | Returning a true value aborts selection grabbing. It will still be hilighted. |
134 | Returning a true value aborts selection grabbing. It will still be hilighted. |
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135 | |
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136 | =item on_sel_extend $term |
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137 | |
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138 | Called whenever the user tries to extend the selection (e.g. with a double |
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139 | click) and is either supposed to return false (normal operation), or |
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140 | should extend the selection itelf and return true to suppress the built-in |
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141 | processing. |
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142 | |
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143 | See the F<selection> example extension. |
87 | |
144 | |
88 | =item on_focus_in $term |
145 | =item on_focus_in $term |
89 | |
146 | |
90 | Called whenever the window gets the keyboard focus, before urxvt does |
147 | Called whenever the window gets the keyboard focus, before urxvt does |
91 | focus in processing. |
148 | focus in processing. |
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132 | C<perl:string> action bound to it (see description of the B<keysym> |
189 | C<perl:string> action bound to it (see description of the B<keysym> |
133 | resource in the @@RXVT_NAME@@(1) manpage). |
190 | resource in the @@RXVT_NAME@@(1) manpage). |
134 | |
191 | |
135 | =back |
192 | =back |
136 | |
193 | |
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194 | =head2 Variables in the C<urxvt> Package |
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195 | |
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196 | =over 4 |
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197 | |
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198 | =item $urxvt::TERM |
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199 | |
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200 | The current terminal. Whenever a callback/Hook is bein executed, this |
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201 | variable stores the current C<urxvt::term> object. |
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202 | |
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203 | =back |
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204 | |
137 | =head2 Functions in the C<urxvt> Package |
205 | =head2 Functions in the C<urxvt> Package |
138 | |
206 | |
139 | =over 4 |
207 | =over 4 |
140 | |
208 | |
141 | =item urxvt::fatal $errormessage |
209 | =item urxvt::fatal $errormessage |
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155 | |
223 | |
156 | =item $time = urxvt::NOW |
224 | =item $time = urxvt::NOW |
157 | |
225 | |
158 | Returns the "current time" (as per the event loop). |
226 | Returns the "current time" (as per the event loop). |
159 | |
227 | |
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228 | =back |
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229 | |
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230 | =head2 RENDITION |
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231 | |
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232 | Rendition bitsets contain information about colour, font, font styles and |
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233 | similar information for each screen cell. |
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234 | |
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235 | The following "macros" deal with changes in rendition sets. You should |
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236 | never just create a bitset, you should always modify an existing one, |
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237 | as they contain important information required for correct operation of |
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238 | rxvt-unicode. |
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239 | |
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240 | =over 4 |
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241 | |
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242 | =item $rend = urxvt::DEFAULT_RSTYLE |
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243 | |
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244 | Returns the default rendition, as used when the terminal is starting up or |
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245 | being reset. Useful as a base to start when creating renditions. |
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246 | |
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247 | =item $rend = urxvt::OVERLAY_RSTYLE |
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248 | |
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249 | Return the rendition mask used for overlays by default. |
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250 | |
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251 | =item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline |
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252 | |
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253 | Return the bit that enabled bold, italic, blink, reverse-video and |
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254 | underline, respectively. To enable such a style, just logically OR it into |
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255 | the bitset. |
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256 | |
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257 | =item $foreground = urxvt::GET_BASEFG $rend |
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258 | |
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259 | =item $background = urxvt::GET_BASEBG $rend |
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260 | |
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261 | Return the foreground/background colour index, respectively. |
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262 | |
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263 | =item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) |
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264 | |
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265 | =item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) |
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266 | |
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267 | Replace the foreground/background colour in the rendition mask with the |
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268 | specified one. |
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269 | |
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270 | =item $value = urxvt::GET_CUSTOM ($rend) |
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271 | |
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272 | Return the "custom" value: Every rendition has 5 bits for use by |
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273 | extensions. They can be set and changed as you like and are initially |
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274 | zero. |
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275 | |
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276 | =item $rend = urxvt::SET_CUSTOM ($rend, $new_value) |
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277 | |
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278 | Change the custom value. |
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279 | |
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280 | =back |
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281 | |
160 | =cut |
282 | =cut |
161 | |
283 | |
162 | package urxvt; |
284 | package urxvt; |
163 | |
285 | |
164 | use strict; |
286 | use strict; |
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287 | use Scalar::Util (); |
165 | |
288 | |
166 | our $term; |
289 | our $TERM; |
167 | our @HOOKNAME; |
290 | our @HOOKNAME; |
168 | our $LIBDIR; |
291 | our $LIBDIR; |
169 | |
292 | |
170 | BEGIN { |
293 | BEGIN { |
171 | urxvt->bootstrap; |
294 | urxvt->bootstrap; |
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196 | my $name = $HOOKNAME[$htype]; |
319 | my $name = $HOOKNAME[$htype]; |
197 | |
320 | |
198 | my $ref = $pkg->can ("on_" . lc $name) |
321 | my $ref = $pkg->can ("on_" . lc $name) |
199 | or next; |
322 | or next; |
200 | |
323 | |
201 | $term->{_hook}[$htype]{$ref*1} = $ref; |
324 | $TERM->{_hook}[$htype]{$pkg} = $ref; |
202 | $hook_count[$htype]++ |
325 | $hook_count[$htype]++ |
203 | or set_should_invoke $htype, 1; |
326 | or set_should_invoke $htype, 1; |
204 | } |
327 | } |
205 | } |
328 | } |
206 | |
329 | |
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230 | } |
353 | } |
231 | } |
354 | } |
232 | |
355 | |
233 | # called by the rxvt core |
356 | # called by the rxvt core |
234 | sub invoke { |
357 | sub invoke { |
235 | local $term = shift; |
358 | local $TERM = shift; |
236 | my $htype = shift; |
359 | my $htype = shift; |
237 | |
360 | |
238 | if ($htype == 0) { # INIT |
361 | if ($htype == 0) { # INIT |
239 | my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); |
362 | my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); |
240 | |
363 | |
241 | for my $ext (split /:/, $term->resource ("perl_ext")) { |
364 | for my $ext (split /:/, $TERM->resource ("perl_ext")) { |
242 | my @files = grep -f $_, map "$_/$ext", @dirs; |
365 | my @files = grep -f $_, map "$_/$ext", @dirs; |
243 | |
366 | |
244 | if (@files) { |
367 | if (@files) { |
245 | register_package script_package $files[0]; |
368 | register_package script_package $files[0]; |
246 | } else { |
369 | } else { |
247 | warn "perl extension '$ext' not found in perl library search path\n"; |
370 | warn "perl extension '$ext' not found in perl library search path\n"; |
248 | } |
371 | } |
249 | } |
372 | } |
250 | |
373 | |
251 | } elsif ($htype == 1) { # DESTROY |
374 | } elsif ($htype == 1) { # DESTROY |
252 | if (my $hook = $term->{_hook}) { |
375 | if (my $hook = $TERM->{_hook}) { |
253 | for my $htype (0..$#$hook) { |
376 | for my $htype (0..$#$hook) { |
254 | $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } |
377 | $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } |
255 | or set_should_invoke $htype, 0; |
378 | or set_should_invoke $htype, 0; |
256 | } |
379 | } |
257 | } |
380 | } |
258 | } |
381 | } |
259 | |
382 | |
260 | my $cb = $term->{_hook}[$htype] |
383 | my $cb = $TERM->{_hook}[$htype] |
261 | or return; |
384 | or return; |
262 | |
385 | |
263 | verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" |
386 | verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" |
264 | if $verbosity >= 10; |
387 | if $verbosity >= 10; |
265 | |
388 | |
266 | while (my ($k, $v) = each %$cb) { |
389 | while (my ($pkg, $cb) = each %$cb) { |
267 | return 1 if $v->($term, @_); |
390 | return 1 |
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391 | if $cb->( |
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392 | $TERM->{$pkg} ||= do { |
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393 | my $proxy = bless { }, urxvt::term::proxy::; |
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394 | Scalar::Util::weaken ($proxy->{term} = $TERM); |
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395 | $proxy |
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396 | }, |
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397 | @_, |
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398 | ); |
268 | } |
399 | } |
269 | |
400 | |
270 | 0 |
401 | 0 |
271 | } |
402 | } |
272 | |
403 | |
273 | =back |
404 | sub urxvt::term::proxy::AUTOLOAD { |
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405 | $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ |
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406 | or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; |
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407 | |
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408 | eval qq{ |
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409 | sub $urxvt::term::proxy::AUTOLOAD { |
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410 | unshift \@_, shift->{term}; |
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411 | goto &urxvt::term::$1; |
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412 | } |
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413 | 1 |
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414 | } or die "FATAL: unable to compile method forwarder: $@"; |
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415 | |
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416 | goto &$urxvt::term::proxy::AUTOLOAD; |
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417 | } |
274 | |
418 | |
275 | =head2 The C<urxvt::term> Class |
419 | =head2 The C<urxvt::term> Class |
276 | |
420 | |
277 | =over 4 |
421 | =over 4 |
278 | |
422 | |
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334 | |
478 | |
335 | =item $oldtext = $term->selection ([$newtext]) |
479 | =item $oldtext = $term->selection ([$newtext]) |
336 | |
480 | |
337 | Return the current selection text and optionally replace it by C<$newtext>. |
481 | Return the current selection text and optionally replace it by C<$newtext>. |
338 | |
482 | |
339 | =item $term->scr_overlay ($x, $y, $text) |
483 | #=item $term->overlay ($x, $y, $text) |
340 | |
484 | # |
341 | Create a simple multi-line overlay box. See the next method for details. |
485 | #Create a simple multi-line overlay box. See the next method for details. |
342 | |
486 | # |
343 | =cut |
487 | #=cut |
344 | |
488 | |
345 | sub urxvt::term::scr_overlay { |
489 | sub urxvt::term::scr_overlay { |
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490 | die; |
346 | my ($self, $x, $y, $text) = @_; |
491 | my ($self, $x, $y, $text) = @_; |
347 | |
492 | |
348 | my @lines = split /\n/, $text; |
493 | my @lines = split /\n/, $text; |
349 | |
494 | |
350 | my $w = 0; |
495 | my $w = 0; |
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354 | |
499 | |
355 | $self->scr_overlay_new ($x, $y, $w, scalar @lines); |
500 | $self->scr_overlay_new ($x, $y, $w, scalar @lines); |
356 | $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; |
501 | $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; |
357 | } |
502 | } |
358 | |
503 | |
359 | =item $term->scr_overlay_new ($x, $y, $width, $height) |
504 | =item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) |
360 | |
505 | |
361 | Create a new (empty) overlay at the given position with the given |
506 | Create a new (empty) overlay at the given position with the given |
362 | width/height. A border will be put around the box. If either C<$x> or |
507 | width/height. C<$rstyle> defines the initial rendition style |
363 | C<$y> is negative, then this is counted from the right/bottom side, |
508 | (default: C<OVERLAY_RSTYLE>). |
364 | respectively. |
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365 | |
509 | |
366 | =item $term->scr_overlay_off |
510 | If C<$border> is C<2> (default), then a decorative border will be put |
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511 | around the box. |
367 | |
512 | |
368 | Switch the overlay off again. |
513 | If either C<$x> or C<$y> is negative, then this is counted from the |
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514 | right/bottom side, respectively. |
369 | |
515 | |
370 | =item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) |
516 | This method returns an urxvt::overlay object. The overlay will be visible |
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517 | as long as the perl object is referenced. |
371 | |
518 | |
372 | Put a single character (specified numerically) at the given overlay |
519 | The methods currently supported on C<urxvt::overlay> objects are: |
373 | position. |
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374 | |
520 | |
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521 | =over 4 |
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522 | |
375 | =item $term->scr_overlay_set ($x, $y, $text) |
523 | =item $overlay->set ($x, $y, $text, $rend) |
376 | |
524 | |
377 | Write a string at the given position into the overlay. |
525 | Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts |
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526 | text in rxvt-unicode's special encoding and an array of rendition values |
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527 | at a specific position inside the overlay. |
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528 | |
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529 | =item $overlay->hide |
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530 | |
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531 | If visible, hide the overlay, but do not destroy it. |
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532 | |
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533 | =item $overlay->show |
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534 | |
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535 | If hidden, display the overlay again. |
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536 | |
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537 | =back |
378 | |
538 | |
379 | =item $cellwidth = $term->strwidth $string |
539 | =item $cellwidth = $term->strwidth $string |
380 | |
540 | |
381 | Returns the number of screen-cells this string would need. Correctly |
541 | Returns the number of screen-cells this string would need. Correctly |
382 | accounts for wide and combining characters. |
542 | accounts for wide and combining characters. |
… | |
… | |
427 | terminal line. The scrollback buffer starts at line C<-1> and extends to |
587 | terminal line. The scrollback buffer starts at line C<-1> and extends to |
428 | line C<< -$term->nsaved >>. |
588 | line C<< -$term->nsaved >>. |
429 | |
589 | |
430 | If C<$new_text> is specified, it will replace characters in the current |
590 | If C<$new_text> is specified, it will replace characters in the current |
431 | line, starting at column C<$start_col> (default C<0>), which is useful |
591 | line, starting at column C<$start_col> (default C<0>), which is useful |
432 | to replace only parts of a line. The font iindex in the rendition will |
592 | to replace only parts of a line. The font index in the rendition will |
433 | automatically be updated. |
593 | automatically be updated. |
434 | |
594 | |
435 | C<$text> is in a special encoding: tabs and wide characters that use more |
595 | C<$text> is in a special encoding: tabs and wide characters that use more |
436 | than one cell when displayed are padded with urxvt::NOCHAR characters |
596 | than one cell when displayed are padded with urxvt::NOCHAR characters |
437 | (C<chr 65535>). Characters with combining characters and other characters |
597 | (C<chr 65535>). Characters with combining characters and other characters |
… | |
… | |
451 | bitsets. Rendition bitsets contain information about colour, font, font |
611 | bitsets. Rendition bitsets contain information about colour, font, font |
452 | styles and similar information. See also C<< $term->ROW_t >>. |
612 | styles and similar information. See also C<< $term->ROW_t >>. |
453 | |
613 | |
454 | When setting rendition, the font mask will be ignored. |
614 | When setting rendition, the font mask will be ignored. |
455 | |
615 | |
456 | See the section on RENDITION, below. |
616 | See the section on RENDITION, above. |
457 | |
617 | |
458 | =item $length = $term->ROW_l ($row_number[, $new_length]) |
618 | =item $length = $term->ROW_l ($row_number[, $new_length]) |
459 | |
619 | |
460 | Returns the number of screen cells that are in use ("the line length"). If |
620 | Returns the number of screen cells that are in use ("the line length"). If |
461 | it is C<-1>, then the line is part of a multiple-row logical "line", which |
621 | it is C<-1>, then the line is part of a multiple-row logical "line", which |
… | |
… | |
472 | Converts rxvt-unicodes text reprsentation into a perl string. See |
632 | Converts rxvt-unicodes text reprsentation into a perl string. See |
473 | C<< $term->ROW_t >> for details. |
633 | C<< $term->ROW_t >> for details. |
474 | |
634 | |
475 | =back |
635 | =back |
476 | |
636 | |
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 |
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497 | |
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498 | =head2 The C<urxvt::timer> Class |
637 | =head2 The C<urxvt::timer> Class |
499 | |
638 | |
500 | This class implements timer watchers/events. Time is represented as a |
639 | This class implements timer watchers/events. Time is represented as a |
501 | fractional number of seconds since the epoch. Example: |
640 | fractional number of seconds since the epoch. Example: |
502 | |
641 | |
503 | # create a digital clock display in upper right corner |
642 | $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); |
504 | $term->{timer} = urxvt::timer |
643 | $term->{timer} = urxvt::timer |
505 | ->new |
644 | ->new |
506 | ->start (urxvt::NOW) |
645 | ->interval (1) |
507 | ->cb (sub { |
646 | ->cb (sub { |
508 | my ($timer) = @_; |
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509 | my $time = $timer->at; |
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510 | $timer->start ($time + 1); |
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511 | $self->scr_overlay (-1, 0, |
647 | $term->{overlay}->set (0, 0, |
512 | POSIX::strftime "%H:%M:%S", localtime $time); |
648 | sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); |
513 | }); |
649 | }); |
514 | |
650 | |
515 | =over 4 |
651 | =over 4 |
516 | |
652 | |
517 | =item $timer = new urxvt::timer |
653 | =item $timer = new urxvt::timer |
518 | |
654 | |
519 | Create a new timer object in stopped state. |
655 | Create a new timer object in started state. It is scheduled to fire |
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656 | immediately. |
520 | |
657 | |
521 | =item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
658 | =item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
522 | |
659 | |
523 | Set the callback to be called when the timer triggers. |
660 | Set the callback to be called when the timer triggers. |
524 | |
661 | |
… | |
… | |
527 | Return the time this watcher will fire next. |
664 | Return the time this watcher will fire next. |
528 | |
665 | |
529 | =item $timer = $timer->set ($tstamp) |
666 | =item $timer = $timer->set ($tstamp) |
530 | |
667 | |
531 | Set the time the event is generated to $tstamp. |
668 | Set the time the event is generated to $tstamp. |
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669 | |
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670 | =item $timer = $timer->interval ($interval) |
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671 | |
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672 | Normally (and when C<$interval> is C<0>), the timer will automatically |
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673 | stop after it has fired once. If C<$interval> is non-zero, then the timer |
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674 | is automatically rescheduled at the given intervals. |
532 | |
675 | |
533 | =item $timer = $timer->start |
676 | =item $timer = $timer->start |
534 | |
677 | |
535 | Start the timer. |
678 | Start the timer. |
536 | |
679 | |