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.\" ======================================================================== |
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.\" |
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.IX Title "rxvt 3" |
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.TH rxvt 3 "2006-01-02" "6.2" "RXVT-UNICODE" |
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.SH "NAME" |
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rxvtperl \- rxvt\-unicode's embedded perl interpreter |
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.SH "SYNOPSIS" |
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.IX Header "SYNOPSIS" |
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* Put your scripts into \fI@@RXVT_LIBDIR@@/urxvt/perl\-ext/\fR, they will be loaded automatically. |
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.PP |
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* Scripts are evaluated in a 'use strict' and 'use utf8' environment, and |
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thus must be encoded as \s-1UTF\-8\s0. |
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.PP |
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.Vb 4 |
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\& sub on_sel_grab { |
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\& warn "you selected ", $_[0]->selection; |
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\& () |
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\& } |
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.Ve |
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.PP |
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.Vb 1 |
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\& 1 |
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.Ve |
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.SH "DESCRIPTION" |
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.IX Header "DESCRIPTION" |
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Everytime a terminal object gets created, scripts specified via the |
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\&\f(CW\*(C`perl\*(C'\fR resource are associated with it. |
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.PP |
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Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
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scripts will be shared (But not enabled) for all terminals. |
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.Sh "General \s-1API\s0 Considerations" |
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.IX Subsection "General API Considerations" |
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All objects (such as terminals, time watchers etc.) are typical |
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reference-to-hash objects. The hash can be used to store anything you |
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like. All members starting with an underscore (such as \f(CW\*(C`_ptr\*(C'\fR or |
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\&\f(CW\*(C`_hook\*(C'\fR) are reserved for internal uses and must not be accessed or |
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modified). |
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.PP |
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When objects are destroyed on the \*(C+ side, the perl object hashes are |
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emptied, so its best to store related objects such as time watchers and |
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the like inside the terminal object so they get destroyed as soon as the |
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terminal is destroyed. |
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.Sh "Hooks" |
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.IX Subsection "Hooks" |
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The following subroutines can be declared in loaded scripts, and will be called |
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whenever the relevant event happens. |
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.PP |
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All of them must return a boolean value. If it is true, then the event |
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counts as being \fIconsumed\fR, and the invocation of other hooks is skipped, |
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and the relevant action might not be carried out by the \*(C+ code. |
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.PP |
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When in doubt, return a false value (preferably \f(CW\*(C`()\*(C'\fR). |
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.ie n .IP "on_init $term" 4 |
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.el .IP "on_init \f(CW$term\fR" 4 |
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.IX Item "on_init $term" |
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Called after a new terminal object has been initialized, but before |
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windows are created or the command gets run. |
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.ie n .IP "on_reset $term" 4 |
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.el .IP "on_reset \f(CW$term\fR" 4 |
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.IX Item "on_reset $term" |
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Called after the screen is \*(L"reset\*(R" for any reason, such as resizing or |
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control sequences. Here is where you can react on changes to size-related |
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variables. |
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.ie n .IP "on_start $term" 4 |
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.el .IP "on_start \f(CW$term\fR" 4 |
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.IX Item "on_start $term" |
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Called at the very end of initialisation of a new terminal, just before |
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returning to the mainloop. |
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.ie n .IP "on_sel_make $term\fR, \f(CW$eventtime" 4 |
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.el .IP "on_sel_make \f(CW$term\fR, \f(CW$eventtime\fR" 4 |
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.IX Item "on_sel_make $term, $eventtime" |
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Called whenever a selection has been made by the user, but before the |
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selection text is copied, so changes to the beginning, end or type of the |
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selection will be honored. |
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.Sp |
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Returning a true value aborts selection making by urxvt, in which case you |
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have to make a selection yourself by calling \f(CW\*(C`$term\->selection_grab\*(C'\fR. |
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.ie n .IP "on_sel_grab $term\fR, \f(CW$eventtime" 4 |
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.el .IP "on_sel_grab \f(CW$term\fR, \f(CW$eventtime\fR" 4 |
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.IX Item "on_sel_grab $term, $eventtime" |
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Called whenever a selection has been copied, but before the selection is |
| 210 |
requested from the server. The selection text can be queried and changed |
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by calling \f(CW\*(C`$term\->selection\*(C'\fR. |
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.Sp |
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Returning a true value aborts selection grabbing. It will still be hilighted. |
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.ie n .IP "on_focus_in $term" 4 |
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.el .IP "on_focus_in \f(CW$term\fR" 4 |
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.IX Item "on_focus_in $term" |
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Called whenever the window gets the keyboard focus, before urxvt does |
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focus in processing. |
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.ie n .IP "on_focus_out $term" 4 |
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.el .IP "on_focus_out \f(CW$term\fR" 4 |
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.IX Item "on_focus_out $term" |
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Called wheneever the window loses keyboard focus, before urxvt does focus |
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out processing. |
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.ie n .IP "on_view_change $term\fR, \f(CW$offset" 4 |
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.el .IP "on_view_change \f(CW$term\fR, \f(CW$offset\fR" 4 |
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.IX Item "on_view_change $term, $offset" |
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Called whenever the view offset changes, i..e the user or program |
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scrolls. Offset \f(CW0\fR means display the normal terminal, positive values |
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show this many lines of scrollback. |
| 230 |
.ie n .IP "on_scroll_back $term\fR, \f(CW$lines\fR, \f(CW$saved" 4 |
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.el .IP "on_scroll_back \f(CW$term\fR, \f(CW$lines\fR, \f(CW$saved\fR" 4 |
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.IX Item "on_scroll_back $term, $lines, $saved" |
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Called whenever lines scroll out of the terminal area into the scrollback |
| 234 |
buffer. \f(CW$lines\fR is the number of lines scrolled out and may be larger |
| 235 |
than the scroll back buffer or the terminal. |
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.Sp |
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It is called before lines are scrolled out (so rows 0 .. min ($lines \- 1, |
| 238 |
\&\f(CW$nrow\fR \- 1) represent the lines to be scrolled out). \f(CW$saved\fR is the total |
| 239 |
number of lines that will be in the scrollback buffer. |
| 240 |
.ie n .IP "on_tty_activity $term *NYI*" 4 |
| 241 |
.el .IP "on_tty_activity \f(CW$term\fR *NYI*" 4 |
| 242 |
.IX Item "on_tty_activity $term *NYI*" |
| 243 |
Called whenever the program(s) running in the urxvt window send output. |
| 244 |
.ie n .IP "on_refresh_begin $term" 4 |
| 245 |
.el .IP "on_refresh_begin \f(CW$term\fR" 4 |
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.IX Item "on_refresh_begin $term" |
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Called just before the screen gets redrawn. Can be used for overlay |
| 248 |
or similar effects by modify terminal contents in refresh_begin, and |
| 249 |
restoring them in refresh_end. The built-in overlay and selection display |
| 250 |
code is run after this hook, and takes precedence. |
| 251 |
.ie n .IP "on_refresh_end $term" 4 |
| 252 |
.el .IP "on_refresh_end \f(CW$term\fR" 4 |
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.IX Item "on_refresh_end $term" |
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Called just after the screen gets redrawn. See \f(CW\*(C`on_refresh_begin\*(C'\fR. |
| 255 |
.ie n .Sh "Functions in the ""urxvt"" Package" |
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.el .Sh "Functions in the \f(CWurxvt\fP Package" |
| 257 |
.IX Subsection "Functions in the urxvt Package" |
| 258 |
.ie n .IP "urxvt::fatal $errormessage" 4 |
| 259 |
.el .IP "urxvt::fatal \f(CW$errormessage\fR" 4 |
| 260 |
.IX Item "urxvt::fatal $errormessage" |
| 261 |
Fatally aborts execution with the given error message. Avoid at all |
| 262 |
costs! The only time this is acceptable is when the terminal process |
| 263 |
starts up. |
| 264 |
.ie n .IP "urxvt::warn $string" 4 |
| 265 |
.el .IP "urxvt::warn \f(CW$string\fR" 4 |
| 266 |
.IX Item "urxvt::warn $string" |
| 267 |
Calls \f(CW\*(C`rxvt_warn\*(C'\fR with the given string which should not include a |
| 268 |
newline. The module also overwrites the \f(CW\*(C`warn\*(C'\fR builtin with a function |
| 269 |
that calls this function. |
| 270 |
.Sp |
| 271 |
Using this function has the advantage that its output ends up in the |
| 272 |
correct place, e.g. on stderr of the connecting urxvtc client. |
| 273 |
.IP "$time = urxvt::NOW" 4 |
| 274 |
.IX Item "$time = urxvt::NOW" |
| 275 |
Returns the \*(L"current time\*(R" (as per the event loop). |
| 276 |
.ie n .Sh "The ""urxvt::term"" Class" |
| 277 |
.el .Sh "The \f(CWurxvt::term\fP Class" |
| 278 |
.IX Subsection "The urxvt::term Class" |
| 279 |
.ie n .IP "$value = $term\fR\->resource ($name[, \f(CW$newval])" 4 |
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.el .IP "$value = \f(CW$term\fR\->resource ($name[, \f(CW$newval\fR])" 4 |
| 281 |
.IX Item "$value = $term->resource ($name[, $newval])" |
| 282 |
Returns the current resource value associated with a given name and |
| 283 |
optionally sets a new value. Setting values is most useful in the \f(CW\*(C`init\*(C'\fR |
| 284 |
hook. Unset resources are returned and accepted as \f(CW\*(C`undef\*(C'\fR. |
| 285 |
.Sp |
| 286 |
The new value must be properly encoded to a suitable character encoding |
| 287 |
before passing it to this method. Similarly, the returned value may need |
| 288 |
to be converted from the used encoding to text. |
| 289 |
.Sp |
| 290 |
Resource names are as defined in \fIsrc/rsinc.h\fR. Colours can be specified |
| 291 |
as resource names of the form \f(CW\*(C`color+<index>\*(C'\fR, e.g. \f(CW\*(C`color+5\*(C'\fR. (will |
| 292 |
likely change). |
| 293 |
.Sp |
| 294 |
Please note that resource strings will currently only be freed when the |
| 295 |
terminal is destroyed, so changing options frequently will eat memory. |
| 296 |
.Sp |
| 297 |
Here is a a likely non-exhaustive list of resource names, not all of which |
| 298 |
are supported in every build, please see the source to see the actual |
| 299 |
list: |
| 300 |
.Sp |
| 301 |
.Vb 12 |
| 302 |
\& answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
| 303 |
\& borderLess color cursorBlink cursorUnderline cutchars delete_key |
| 304 |
\& display_name embed ext_bwidth fade font geometry hold iconName |
| 305 |
\& imFont imLocale inputMethod insecure int_bwidth intensityStyles |
| 306 |
\& italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier |
| 307 |
\& mouseWheelScrollPage name pastableTabs path perl_eval perl_ext |
| 308 |
\& perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd |
| 309 |
\& reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating |
| 310 |
\& scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput |
| 311 |
\& scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle |
| 312 |
\& shade term_name title transparent transparent_all tripleclickwords |
| 313 |
\& utmpInhibit visualBell |
| 314 |
.Ve |
| 315 |
.ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col])" 4 |
| 316 |
.el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_mark ([$row, \f(CW$col\fR])" 4 |
| 317 |
.IX Item "($row, $col) = $term->selection_mark ([$row, $col])" |
| 318 |
.PD 0 |
| 319 |
.ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col])" 4 |
| 320 |
.el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_beg ([$row, \f(CW$col\fR])" 4 |
| 321 |
.IX Item "($row, $col) = $term->selection_beg ([$row, $col])" |
| 322 |
.ie n .IP "($row, $col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col])" 4 |
| 323 |
.el .IP "($row, \f(CW$col\fR) = \f(CW$term\fR\->selection_end ([$row, \f(CW$col\fR])" 4 |
| 324 |
.IX Item "($row, $col) = $term->selection_end ([$row, $col])" |
| 325 |
.PD |
| 326 |
Return the current values of the selection mark, begin or end positions, |
| 327 |
and optionally set them to new values. |
| 328 |
.ie n .IP "$success = $term\->selection_grab ($eventtime)" 4 |
| 329 |
.el .IP "$success = \f(CW$term\fR\->selection_grab ($eventtime)" 4 |
| 330 |
.IX Item "$success = $term->selection_grab ($eventtime)" |
| 331 |
Try to request the primary selection from the server (for example, as set |
| 332 |
by the next method). |
| 333 |
.ie n .IP "$oldtext = $term\->selection ([$newtext])" 4 |
| 334 |
.el .IP "$oldtext = \f(CW$term\fR\->selection ([$newtext])" 4 |
| 335 |
.IX Item "$oldtext = $term->selection ([$newtext])" |
| 336 |
Return the current selection text and optionally replace it by \f(CW$newtext\fR. |
| 337 |
.ie n .IP "$term\->scr_overlay ($x, $y\fR, \f(CW$text)" 4 |
| 338 |
.el .IP "$term\->scr_overlay ($x, \f(CW$y\fR, \f(CW$text\fR)" 4 |
| 339 |
.IX Item "$term->scr_overlay ($x, $y, $text)" |
| 340 |
Create a simple multi-line overlay box. See the next method for details. |
| 341 |
.ie n .IP "$term\->scr_overlay_new ($x, $y\fR, \f(CW$width\fR, \f(CW$height)" 4 |
| 342 |
.el .IP "$term\->scr_overlay_new ($x, \f(CW$y\fR, \f(CW$width\fR, \f(CW$height\fR)" 4 |
| 343 |
.IX Item "$term->scr_overlay_new ($x, $y, $width, $height)" |
| 344 |
Create a new (empty) overlay at the given position with the given |
| 345 |
width/height. A border will be put around the box. If either \f(CW$x\fR or |
| 346 |
\&\f(CW$y\fR is negative, then this is counted from the right/bottom side, |
| 347 |
respectively. |
| 348 |
.IP "$term\->scr_overlay_off" 4 |
| 349 |
.IX Item "$term->scr_overlay_off" |
| 350 |
Switch the overlay off again. |
| 351 |
.ie n .IP "$term\->scr_overlay_set_char ($x, $y\fR, \f(CW$char\fR, \f(CW$rend = \s-1OVERLAY_RSTYLE\s0)" 4 |
| 352 |
.el .IP "$term\->scr_overlay_set_char ($x, \f(CW$y\fR, \f(CW$char\fR, \f(CW$rend\fR = \s-1OVERLAY_RSTYLE\s0)" 4 |
| 353 |
.IX Item "$term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)" |
| 354 |
Put a single character (specified numerically) at the given overlay |
| 355 |
position. |
| 356 |
.ie n .IP "$term\->scr_overlay_set ($x, $y\fR, \f(CW$text)" 4 |
| 357 |
.el .IP "$term\->scr_overlay_set ($x, \f(CW$y\fR, \f(CW$text\fR)" 4 |
| 358 |
.IX Item "$term->scr_overlay_set ($x, $y, $text)" |
| 359 |
Write a string at the given position into the overlay. |
| 360 |
.ie n .IP "$cellwidth = $term\fR\->strwidth \f(CW$string" 4 |
| 361 |
.el .IP "$cellwidth = \f(CW$term\fR\->strwidth \f(CW$string\fR" 4 |
| 362 |
.IX Item "$cellwidth = $term->strwidth $string" |
| 363 |
Returns the number of screen-cells this string would need. Correctly |
| 364 |
accounts for wide and combining characters. |
| 365 |
.ie n .IP "$octets = $term\fR\->locale_encode \f(CW$string" 4 |
| 366 |
.el .IP "$octets = \f(CW$term\fR\->locale_encode \f(CW$string\fR" 4 |
| 367 |
.IX Item "$octets = $term->locale_encode $string" |
| 368 |
Convert the given text string into the corresponding locale encoding. |
| 369 |
.ie n .IP "$string = $term\fR\->locale_decode \f(CW$octets" 4 |
| 370 |
.el .IP "$string = \f(CW$term\fR\->locale_decode \f(CW$octets\fR" 4 |
| 371 |
.IX Item "$string = $term->locale_decode $octets" |
| 372 |
Convert the given locale-encoded octets into a perl string. |
| 373 |
.IP "$term\->tt_write ($octets)" 4 |
| 374 |
.IX Item "$term->tt_write ($octets)" |
| 375 |
Write the octets given in \f(CW$data\fR to the tty (i.e. as program input). To |
| 376 |
pass characters instead of octets, you should convetr you strings first to |
| 377 |
the locale-specific encoding using \f(CW\*(C`$term\->locale_encode\*(C'\fR. |
| 378 |
.ie n .Sh "The ""urxvt::timer"" Class" |
| 379 |
.el .Sh "The \f(CWurxvt::timer\fP Class" |
| 380 |
.IX Subsection "The urxvt::timer Class" |
| 381 |
This class implements timer watchers/events. Time is represented as a |
| 382 |
fractional number of seconds since the epoch. Example: |
| 383 |
.PP |
| 384 |
.Vb 11 |
| 385 |
\& # create a digital clock display in upper right corner |
| 386 |
\& $term->{timer} = urxvt::timer |
| 387 |
\& ->new |
| 388 |
\& ->start (urxvt::NOW) |
| 389 |
\& ->cb (sub { |
| 390 |
\& my ($timer) = @_; |
| 391 |
\& my $time = $timer->at; |
| 392 |
\& $timer->start ($time + 1); |
| 393 |
\& $self->scr_overlay (-1, 0, |
| 394 |
\& POSIX::strftime "%H:%M:%S", localtime $time); |
| 395 |
\& }); |
| 396 |
.Ve |
| 397 |
.IP "$timer = new urxvt::timer" 4 |
| 398 |
.IX Item "$timer = new urxvt::timer" |
| 399 |
Create a new timer object in stopped state. |
| 400 |
.ie n .IP "$timer = $timer\fR\->cb (sub { my ($timer) = \f(CW@_; ... })" 4 |
| 401 |
.el .IP "$timer = \f(CW$timer\fR\->cb (sub { my ($timer) = \f(CW@_\fR; ... })" 4 |
| 402 |
.IX Item "$timer = $timer->cb (sub { my ($timer) = @_; ... })" |
| 403 |
Set the callback to be called when the timer triggers. |
| 404 |
.ie n .IP "$tstamp = $timer\->at" 4 |
| 405 |
.el .IP "$tstamp = \f(CW$timer\fR\->at" 4 |
| 406 |
.IX Item "$tstamp = $timer->at" |
| 407 |
Return the time this watcher will fire next. |
| 408 |
.ie n .IP "$timer = $timer\->set ($tstamp)" 4 |
| 409 |
.el .IP "$timer = \f(CW$timer\fR\->set ($tstamp)" 4 |
| 410 |
.IX Item "$timer = $timer->set ($tstamp)" |
| 411 |
Set the time the event is generated to \f(CW$tstamp\fR. |
| 412 |
.ie n .IP "$timer = $timer\->start" 4 |
| 413 |
.el .IP "$timer = \f(CW$timer\fR\->start" 4 |
| 414 |
.IX Item "$timer = $timer->start" |
| 415 |
Start the timer. |
| 416 |
.ie n .IP "$timer = $timer\->start ($tstamp)" 4 |
| 417 |
.el .IP "$timer = \f(CW$timer\fR\->start ($tstamp)" 4 |
| 418 |
.IX Item "$timer = $timer->start ($tstamp)" |
| 419 |
Set the event trigger time to \f(CW$tstamp\fR and start the timer. |
| 420 |
.ie n .IP "$timer = $timer\->stop" 4 |
| 421 |
.el .IP "$timer = \f(CW$timer\fR\->stop" 4 |
| 422 |
.IX Item "$timer = $timer->stop" |
| 423 |
Stop the timer. |
| 424 |
.ie n .Sh "The ""urxvt::iow"" Class" |
| 425 |
.el .Sh "The \f(CWurxvt::iow\fP Class" |
| 426 |
.IX Subsection "The urxvt::iow Class" |
| 427 |
This class implements io watchers/events. Example: |
| 428 |
.PP |
| 429 |
.Vb 12 |
| 430 |
\& $term->{socket} = ... |
| 431 |
\& $term->{iow} = urxvt::iow |
| 432 |
\& ->new |
| 433 |
\& ->fd (fileno $term->{socket}) |
| 434 |
\& ->events (1) # wait for read data |
| 435 |
\& ->start |
| 436 |
\& ->cb (sub { |
| 437 |
\& my ($iow, $revents) = @_; |
| 438 |
\& # $revents must be 1 here, no need to check |
| 439 |
\& sysread $term->{socket}, my $buf, 8192 |
| 440 |
\& or end-of-file; |
| 441 |
\& }); |
| 442 |
.Ve |
| 443 |
.IP "$iow = new urxvt::iow" 4 |
| 444 |
.IX Item "$iow = new urxvt::iow" |
| 445 |
Create a new io watcher object in stopped state. |
| 446 |
.ie n .IP "$iow = $iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_; ... })" 4 |
| 447 |
.el .IP "$iow = \f(CW$iow\fR\->cb (sub { my ($iow, \f(CW$reventmask\fR) = \f(CW@_\fR; ... })" 4 |
| 448 |
.IX Item "$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })" |
| 449 |
Set the callback to be called when io events are triggered. \f(CW$reventmask\fR |
| 450 |
is a bitset as described in the \f(CW\*(C`events\*(C'\fR method. |
| 451 |
.ie n .IP "$iow = $iow\->fd ($fd)" 4 |
| 452 |
.el .IP "$iow = \f(CW$iow\fR\->fd ($fd)" 4 |
| 453 |
.IX Item "$iow = $iow->fd ($fd)" |
| 454 |
Set the filedescriptor (not handle) to watch. |
| 455 |
.ie n .IP "$iow = $iow\->events ($eventmask)" 4 |
| 456 |
.el .IP "$iow = \f(CW$iow\fR\->events ($eventmask)" 4 |
| 457 |
.IX Item "$iow = $iow->events ($eventmask)" |
| 458 |
Set the event mask to watch. Bit #0 (value \f(CW1\fR) enables watching for read |
| 459 |
data, Bit #1 (value \f(CW2\fR) enables watching for write data. |
| 460 |
.ie n .IP "$iow = $iow\->start" 4 |
| 461 |
.el .IP "$iow = \f(CW$iow\fR\->start" 4 |
| 462 |
.IX Item "$iow = $iow->start" |
| 463 |
Start watching for requested events on the given handle. |
| 464 |
.ie n .IP "$iow = $iow\->stop" 4 |
| 465 |
.el .IP "$iow = \f(CW$iow\fR\->stop" 4 |
| 466 |
.IX Item "$iow = $iow->stop" |
| 467 |
Stop watching for events on the given filehandle. |
| 468 |
.SH "ENVIRONMENT" |
| 469 |
.IX Header "ENVIRONMENT" |
| 470 |
.Sh "\s-1URXVT_PERL_VERBOSITY\s0" |
| 471 |
.IX Subsection "URXVT_PERL_VERBOSITY" |
| 472 |
This variable controls the verbosity level of the perl extension. Higher |
| 473 |
numbers indicate more verbose output. |
| 474 |
.IP "0 \- only fatal messages" 4 |
| 475 |
.IX Item "0 - only fatal messages" |
| 476 |
.PD 0 |
| 477 |
.IP "3 \- script loading and management" 4 |
| 478 |
.IX Item "3 - script loading and management" |
| 479 |
.IP "10 \- all events received" 4 |
| 480 |
.IX Item "10 - all events received" |
| 481 |
.PD |
| 482 |
.SH "AUTHOR" |
| 483 |
.IX Header "AUTHOR" |
| 484 |
.Vb 2 |
| 485 |
\& Marc Lehmann <pcg@goof.com> |
| 486 |
\& http://software.schmorp.de/pkg/rxvt-unicode |
| 487 |
.Ve |
