--- rxvt-unicode/doc/rxvtperl.3.txt 2006/01/19 19:26:31 1.31 +++ rxvt-unicode/doc/rxvtperl.3.txt 2006/01/25 21:48:47 1.37 @@ -31,6 +31,10 @@ rxvt -pe + Or by adding them to the resource for extensions loaded by default: + + URxvt.perl-ext-common: default,automove-background,selection-autotransform + selection (enabled by default) (More) intelligent selection. This extension tries to be more intelligent when the user extends selections (double-click and @@ -56,6 +60,13 @@ URxvt.selection.pattern-0: \\|([^|]+)\\| + Another example: Programs I use often output "absolute path: " at + the beginning of a line when they process multiple files. The + following pattern matches the filename (note, there is a single + space at the very end): + + URxvt.selection.pattern-0: ^(/[^:]+):\ + You can look at the source of the selection extension to see more interesting uses, such as parsing a line from beginning to end. @@ -73,8 +84,8 @@ selection-popup (enabled by default) Binds a popup menu to Ctrl-Button3 that lets you convert the selection text into various other formats/action (such as uri - unescaping, perl evalution, web-browser starting etc.), depending on - content. + unescaping, perl evaluation, web-browser starting etc.), depending + on content. Other extensions can extend this popup menu by pushing a code reference onto "@{ $term-"{selection_popup_hook} }>, that is called @@ -110,6 +121,24 @@ stay at the current position and additionally stores the first match in the current line into the primary selection. + readline (enabled by default) + A support package that tries to make editing with readline easier. + At the moment, it reacts to clicking with the left mouse button by + trying to move the text cursor to this position. It does so by + generating as many cursor-left or cursor-right keypresses as + required (the this only works for programs that correctly support + wide characters). + + To avoid too many false positives, this is only done when: + + - the tty is in ICANON state. + - the text cursor is visible. + - the primary screen is currently being displayed. + - the mouse is on the same (multi-row-) line as the text cursor. + + The normal selection mechanism isn't disabled, so quick successive + clicks might interfere with selection creation in harmless ways. + selection-autotransform This selection allows you to do automatic transforms on a selection whenever a selection is made. @@ -145,12 +174,34 @@ of every error message as a selection pattern, and the second line transforms the message into vi commands to load the file. + tabbed + This transforms the terminal into a tabbar with additional + terminals, that is, it implements what is commonly refered to as + "tabbed terminal". The topmost line displays a "[NEW]" button, + which, when clicked, will add a new tab, followed by one button per + tab. + + Clicking a button will activate that tab. Pressing Shift-Left and + Shift-Right will switch to the tab left or right of the current one, + while Shift-Down creates a new tab. + mark-urls Uses per-line display filtering ("on_line_update") to underline urls and make them clickable. When middle-clicked, the program specified in the resource "urlLauncher" (default "x-www-browser") will be started with the URL as first argument. + xim-onthespot + This (experimental) perl extension implements OnTheSpot editing. It + does not work perfectly, and some input methods don't seem to work + well with OnTheSpot editing in general, but it seems to work at + leats for SCIM and kinput2. + + You enable it by specifying this extension and a preedit style of + "OnTheSpot", i.e.: + + rxvt -pt OnTheSpot -pe xim-onthespot + automove-background This is basically a one-line extension that dynamically changes the background pixmap offset to the window position, in effect creating @@ -167,10 +218,24 @@ digital-clock Displays a digital clock using the built-in overlay. - example-refresh-hooks - Displays a very simple digital clock in the upper right corner of - the window. Illustrates overwriting the refresh callbacks to create - your own overlays or changes. + remote-clipboard + Somewhat of a misnomer, this extension adds two menu entries to the + selection popup that allows one ti run external commands to store + the selection somewhere and fetch it again. + + We use it to implement a "distributed selection mechanism", which + just means that one command uploads the file to a remote server, and + another reads it. + + The commands can be set using the "URxvt.remote-selection.store" and + "URxvt.remote-selection.fetch" resources. The first should read the + selection to store from STDIN (always in UTF-8), the second should + provide the selection data on STDOUT (also in UTF-8). + + The defaults (which are likely useless to you) use rsh and cat: + + URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection' + URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection' selection-pastebin This is a little rarely useful extension that Uploads the selection @@ -200,6 +265,11 @@ URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% + example-refresh-hooks + Displays a very simple digital clock in the upper right corner of + the window. Illustrates overwriting the refresh callbacks to create + your own overlays or changes. + API DOCUMENTATION General API Considerations All objects (such as terminals, time watchers etc.) are typical @@ -262,10 +332,9 @@ The first argument passed to them is an extension oject as described in the in the "Extension Objects" section. - All of these hooks must return a boolean value. If it is true, then the - event counts as being *consumed*, and the invocation of other hooks is - skipped, and the relevant action might not be carried out by the C++ - code. + All of these hooks must return a boolean value. If any of the called + hooks returns true, then the event counts as being *consumed*, and the + relevant action might not be carried out by the C++ code. *When in doubt, return a false value (preferably "()").* @@ -274,17 +343,23 @@ windows are created or the command gets run. Most methods are unsafe to call or deliver senseless data, as terminal size and other characteristics have not yet been determined. You can safely query - and change resources, though. + and change resources and options, though. For many purposes the + "on_start" hook is a better place. + + on_start $term + Called at the very end of initialisation of a new terminal, just + before trying to map (display) the toplevel and returning to the + mainloop. + + on_destroy $term + Called whenever something tries to destroy terminal, when the + terminal is still fully functional (not for long, though). on_reset $term Called after the screen is "reset" for any reason, such as resizing or control sequences. Here is where you can react on changes to size-related variables. - on_start $term - Called at the very end of initialisation of a new terminal, just - before returning to the mainloop. - on_child_start $term, $pid Called just after the child process has been "fork"ed. @@ -380,10 +455,13 @@ on_refresh_end $term Called just after the screen gets redrawn. See "on_refresh_begin". - on_keyboard_command $term, $string - Called whenever the user presses a key combination that has a - "perl:string" action bound to it (see description of the keysym - resource in the rxvt(1) manpage). + on_user_command $term, $string + Called whenever the a user-configured event is being activated (e.g. + via a "perl:string" action bound to a key, see description of the + keysym resource in the rxvt(1) manpage). + + The event is simply the action string. This interface is assumed to + change slightly in the future. on_x_event $term, $event Called on every X event received on the vt window (and possibly @@ -399,6 +477,7 @@ rxvt-unicode does focus out processing. on_configure_notify $term, $event + on_property_notify $term, $event on_key_press $term, $event, $keysym, $octets on_key_release $term, $event, $keysym on_button_press $term, $event @@ -412,13 +491,20 @@ The event is a hash with most values as named by Xlib (see the XEvent manpage), with the additional members "row" and "col", which - are the row and column under the mouse cursor. + are the (real, not screen-based) row and column under the mouse + cursor. "on_key_press" additionally receives the string rxvt-unicode would output, if any, in locale-specific encoding. subwindow. + on_client_message $term, $event + on_wm_protocols $term, $event + on_wm_delete_window $term, $event + Called when various types of ClientMessage events are received (all + with format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW). + Variables in the "urxvt" Package $urxvt::LIBDIR The rxvt-unicode library directory, where, among other things, the @@ -435,6 +521,22 @@ The current terminal. This variable stores the current "urxvt::term" object, whenever a callback/hook is executing. + @urxvt::TERM_INIT + All coderefs in this array will be called as methods of the next + newly created "urxvt::term" object (during the "on_init" phase). The + array gets cleared before the codereferences that were in it are + being executed, so coderefs can push themselves onto it again if + they so desire. + + This complements to the perl-eval commandline option, but gets + executed first. + + @urxvt::TERM_EXT + Works similar to @TERM_INIT, but contains perl package/class names, + which get registered as normal extensions after calling the hooks in + @TERM_INIT but before other extensions. Gets cleared just like + @TERM_INIT. + Functions in the "urxvt" Package urxvt::fatal $errormessage Fatally aborts execution with the given error message. Avoid at all @@ -717,6 +819,9 @@ be confused by changes in cursor position or scrolling. Its useful inside a "on_add_lines" hook, though. + $term->scr_change_screen ($screen) + Switch to given screen - 0 primary, 1 secondary. + $term->cmd_parse ($octets) Similar to "scr_add_lines", but the argument must be in the locale-specific encoding of the terminal and can contain command @@ -734,6 +839,10 @@ See the description of "urxvt::timer->events". Make sure to always restore the previous value. + $fd = $term->pty_fd + Returns the master file descriptor for the pty in use, or -1 if no + pty is used. + $windowid = $term->parent Return the window id of the toplevel window. @@ -777,6 +886,12 @@ (often AltGr), the meta key (often Alt) and the num lock key, if applicable. + $screen = $term->current_screen + Returns the currently displayed screen (0 primary, 1 secondary). + + $cursor_is_hidden = $term->hidden_cursor + Returns wether the cursor is currently hidden or not. + $view_start = $term->view_start ([$newvalue]) Returns the row number of the topmost displayed line. Maximum value is 0, which displays the normal terminal contents. Lower values @@ -802,8 +917,8 @@ automatically be updated. $text is in a special encoding: tabs and wide characters that use - more than one cell when displayed are padded with urxvt::NOCHAR - characters ("chr 65535"). Characters with combining characters and + more than one cell when displayed are padded with $urxvt::NOCHAR + (chr 65535) characters. Characters with combining characters and other characters that do not fit into the normal tetx encoding will be replaced with characters in the private use area. @@ -894,6 +1009,25 @@ evaluation errors, as it is better to lose the grab in the error case as the session. + $atom = $term->XInternAtom ($atom_name[, $only_if_exists]) + $atom_name = $term->XGetAtomName ($atom) + @atoms = $term->XListProperties ($window) + ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property) + $term->XChangeWindowProperty ($window, $property, $type, $format, + $octets) + $term->XDeleteProperty ($window, $property) + $window = $term->DefaultRootWindow + $term->XReparentWindow ($window, $parent, [$x, $y]) + $term->XMapWindow ($window) + $term->XUnmapWindow ($window) + $term->XMoveResizeWindow ($window, $x, $y, $width, $height) + ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, + $y) + $term->XChangeInput ($window, $add_events[, $del_events]) + Various X or X-related functions. The $term object only serves as + the source of the display, otherwise those functions map + more-or-less directory onto the X functions of the same name. + The "urxvt::popup" Class $popup->add_title ($title) Adds a non-clickable title to the popup. @@ -994,6 +1128,49 @@ $iow = $iow->stop Stop watching for events on the given filehandle. + The "urxvt::iw" Class + This class implements idle watchers, that get called automatically when + the process is idle. They should return as fast as possible, after doing + some useful work. + + $iw = new urxvt::iw + Create a new idle watcher object in stopped state. + + $iw = $iw->cb (sub { my ($iw) = @_; ... }) + Set the callback to be called when the watcher triggers. + + $timer = $timer->start + Start the watcher. + + $timer = $timer->stop + Stop the watcher. + + The "urxvt::pw" Class + This class implements process watchers. They create an event whenever a + process exits, after which they stop automatically. + + my $pid = fork; + ... + $term->{pw} = urxvt::pw + ->new + ->start ($pid) + ->cb (sub { + my ($pw, $exit_status) = @_; + ... + }); + + $pw = new urxvt::pw + Create a new process watcher in stopped state. + + $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... }) + Set the callback to be called when the timer triggers. + + $pw = $timer->start ($pid) + Tells the wqtcher to start watching for process $pid. + + $pw = $pw->stop + Stop the watcher. + ENVIRONMENT URXVT_PERL_VERBOSITY This variable controls the verbosity level of the perl extension. Higher