[ViewVC] Diff of: cvs/rxvt-unicode/src/urxvt.pm

Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.125 by root, Sun Jan 22 20:39:47 2006 UTC vs.
Revision 1.145 by root, Thu Aug 10 22:53:20 2006 UTC

    @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
 =head1 DESCRIPTION
-Everytime a terminal object gets created, extension scripts specified via
+Every time a terminal object gets created, extension scripts specified via
 the C<perl> resource are loaded and associated with it.
 Scripts are compiled in a 'use strict' and 'use utf8' environment, and
 thus must be encoded as UTF-8.
    URxvt.selection.pattern-1: perl-regex
    ...
 The index number (0, 1...) must not have any holes, and each regex must
 contain at least one pair of capturing parentheses, which will be used for
-the match. For example, the followign adds a regex that matches everything
+the match. For example, the following adds a regex that matches everything
 between two vertical bars:
    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.
 This extension also offers following bindable keyboard commands:
 =item option-popup (enabled by default)
 Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
 runtime.
+Other extensions can extend this popup menu by pushing a code reference
+onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
+popup is being displayed.
+It's sole argument is the popup menu, which can be modified.  It should
+either return nothing or a string, the initial boolean value and a code
+reference. The string will be used as button text and the code reference
+will be called when the toggle changes, with the new boolean value as
+first argument.
+The following will add an entry C<myoption> that changes
+C<$self->{myoption}>:
+   push @{ $self->{term}{option_popup_hook} }, sub {
+      ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
+   };
 =item 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
 evaluation, web-browser starting etc.), depending on content.
 Other extensions can extend this popup menu by pushing a code reference
-onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
+onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
-popup is displayed.
+popup is being displayed.
 It's sole argument is the popup menu, which can be modified. The selection
-is in C<$_>, which can be used to decide wether to add something or not.
+is in C<$_>, which can be used to decide whether to add something or not.
 It should either return nothing or a string and a code reference. The
 string will be used as button text and the code reference will be called
 when the button gets activated and should transform C<$_>.
 The following will add an entry C<a to b> that transforms all C<a>s in
 bottom. C<Escape> leaves search mode and returns to the point where search
 was started, while C<Enter> or C<Return> stay at the current position and
 additionally stores the first match in the current line into the primary
 selection.
+The regex defaults to "(?i)", resulting in a case-insensitive search. To
+get a case-sensitive search you can delete this prefix using C<BackSpace>
+or simply use an uppercase character which removes the "(?i)" prefix.
+See L<perlre> for more info about perl regular expression syntax.
 =item readline (enabled by default)
-A support package that tries to make editing with readline easier. At the
+A support package that tries to make editing with readline easier. At
-moment, it reacts to clicking with the left mouse button by trying to
+the moment, it reacts to clicking shift-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 message into vi commands to load the file.
 =item 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
+is, it implements what is commonly referred 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 B<Shift-Left> and
 B<Shift-Right> will switch to the tab left or right of the current one,
 while B<Shift-Down> creates a new tab.
+The tabbar itself can be configured similarly to a normal terminal, but
+with a resource class of C<URxvt.tabbed>. In addition, it supports the
+following four resources (shown with defaults):
+   URxvt.tabbed.tabbar-fg: <colour-index, default 3>
+   URxvt.tabbed.tabbar-bg: <colour-index, default 0>
+   URxvt.tabbed.tab-fg:    <colour-index, default 0>
+   URxvt.tabbed.tab-bg:    <colour-index, default 1>
+See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
+indices.
 =item mark-urls
 Uses per-line display filtering (C<on_line_update>) to underline urls and
 make them clickable. When middle-clicked, the program specified in the
 resource C<urlLauncher> (default C<x-www-browser>) will be started with
 the URL as first argument.
+=item 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
+C<OnTheSpot>, i.e.:
+   @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
+=item kuake<hotkey>
+A very primitive quake-console-like extension. It was inspired by a
+description of how the programs C<kuake> and C<yakuake> work: Whenever the
+user presses a global accelerator key (by default C<F10>), the terminal
+will show or hide itself. Another press of the accelerator key will hide
+or show it again.
+Initially, the window will not be shown when using this extension.
+This is useful if you need a single terminal thats not using any desktop
+space most of the time but is quickly available at the press of a key.
+The accelerator key is grabbed regardless of any modifiers, so this
+extension will actually grab a physical key just for this function.
+If you want a quake-like animation, tell your window manager to do so
+(fvwm can do it).
 =item automove-background
-This is basically a one-line extension that dynamically changes the background pixmap offset
+This is basically a very small extension that dynamically changes the
-to the window position, in effect creating the same effect as pseudo transparency with
+background pixmap offset to the window position, in effect creating the
-a custom pixmap. No scaling is supported in this mode. Exmaple:
+same effect as pseudo transparency with a custom pixmap. No scaling is
+supported in this mode. Example:
    @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
 =item block-graphics-to-ascii
-A not very useful example of filtering all text output to the terminal,
+A not very useful example of filtering all text output to the terminal
 by replacing all line-drawing characters (U+2500 .. U+259F) by a
 similar-looking ascii character.
 =item digital-clock
 Displays a digital clock using the built-in overlay.
-=item example-refresh-hooks
+=item remote-clipboard
-Displays a very simple digital clock in the upper right corner of the
+Somewhat of a misnomer, this extension adds two menu entries to the
-window. Illustrates overwriting the refresh callbacks to create your own
+selection popup that allows one ti run external commands to store the
-overlays or changes.
+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 C<URxvt.remote-selection.store> and
+C<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'
 =item selection-pastebin
 This is a little rarely useful extension that Uploads the selection as
 textfile to a remote site (or does other things). (The implementation is
 After a successful upload the selection will be replaced by the text given
 in the C<selection-pastebin-url> resource (again, the % is the placeholder
 for the filename):
    URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
+=item 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.
 =back
 =head1 API DOCUMENTATION
 =back
 =head2 Extension Objects
-Very perl extension is a perl class. A separate perl object is created
+Every perl extension is a perl class. A separate perl object is created
-for each terminal and each extension and passed as the first parameter to
+for each terminal, and each terminal has its own set of extenion objects,
-hooks. So extensions can use their C<$self> object without having to think
+which are passed as the first parameter to hooks. So extensions can use
-about other extensions, with the exception of methods and members that
+their C<$self> object without having to think about clashes with other
+extensions or other terminals, with the exception of methods and members
-begin with an underscore character C<_>: these are reserved for internal
+that begin with an underscore character C<_>: these are reserved for
-use.
+internal use.
 Although it isn't a C<urxvt::term> object, you can call all methods of the
 C<urxvt::term> class on this object.
 It has the following methods and data members:
 =head2 Hooks
 The following subroutines can be declared in extension files, and will be
 called whenever the relevant event happens.
-The first argument passed to them is an extension oject as described in
+The first argument passed to them is an extension object as described in
 the in the C<Extension Objects> section.
 B<All> of these hooks must return a boolean value. If any of the called
 hooks returns true, then the event counts as being I<consumed>, and the
 relevant action might not be carried out by the C++ code.
 place.
 =item 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.
+trying to map (display) the toplevel and returning to the main loop.
 =item on_destroy $term
-Called whenever something tries to destroy terminal, before doing anything
+Called whenever something tries to destroy terminal, when the terminal is
-yet. If this hook returns true, then destruction is skipped, but this is
+still fully functional (not for long, though).
-rarely a good idea.
 =item 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
 Called whenever a selection has been copied, but before the selection is
 requested from the server.  The selection text can be queried and changed
 by calling C<< $term->selection >>.
-Returning a true value aborts selection grabbing. It will still be hilighted.
+Returning a true value aborts selection grabbing. It will still be highlighted.
 =item on_sel_extend $term
 Called whenever the user tries to extend the selection (e.g. with a double
 click) and is either supposed to return false (normal operation), or
-should extend the selection itelf and return true to suppress the built-in
+should extend the selection itself and return true to suppress the built-in
 processing. This can happen multiple times, as long as the callback
 returns true, it will be called on every further click by the user and is
 supposed to enlarge the selection more and more, if possible.
 See the F<selection> example extension.
 =item on_view_change $term, $offset
-Called whenever the view offset changes, i..e the user or program
+Called whenever the view offset changes, i.e. the user or program
 scrolls. Offset C<0> means display the normal terminal, positive values
 show this many lines of scrollback.
 =item on_scroll_back $term, $lines, $saved
 It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
 $nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
 number of lines that will be in the scrollback buffer.
+=item on_osc_seq $term, $op, $args
+Called on every OSC sequence and can be used to suppress it or modify its
+behaviour.  The default should be to return an empty list. A true value
+suppresses execution of the request completely. Make sure you don't get
+confused by recursive invocations when you output an osc sequence within
+this callback.
+C<on_osc_seq_perl> should be used for new behaviour.
-=item on_osc_seq $term, $string
+=item on_osc_seq_perl $term, $string
 Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
 operating system command) is processed. Cursor position and other state
 information is up-to-date when this happens. For interoperability, the
 string should start with the extension name and a colon, to distinguish
 it from commands for other extensions, and this might be enforced in the
 future.
 Be careful not ever to trust (in a security sense) the data you receive,
-as its source can not easily be controleld (e-mail content, messages from
+as its source can not easily be controlled (e-mail content, messages from
 other users on the same system etc.).
 =item on_add_lines $term, $string
 Called whenever text is about to be output, with the text as argument. You
 =item on_refresh_end $term
 Called just after the screen gets redrawn. See C<on_refresh_begin>.
-=item on_keyboard_command $term, $string
+=item on_user_command $term, $string
-Called whenever the user presses a key combination that has a
+Called whenever a user-configured event is being activated (e.g. via
-C<perl:string> action bound to it (see description of the B<keysym>
+a C<perl:string> action bound to a key, see description of the B<keysym>
 resource in the @@RXVT_NAME@@(1) manpage).
+The event is simply the action string. This interface is assumed to change
+slightly in the future.
+=item on_resize_all_windows $tern, $new_width, $new_height
+Called just after the new window size has been calculated, but before
+windows are actually being resized or hints are being set. If this hook
+returns TRUE, setting of the window hints is being skipped.
 =item on_x_event $term, $event
 Called on every X event received on the vt window (and possibly other
 windows). Should only be used as a last resort. Most event structure
 members are not passed.
+=item on_root_event $term, $event
+Like C<on_x_event>, but is called for events on the root window.
 =item on_focus_in $term
 Called whenever the window gets the keyboard focus, before rxvt-unicode
 does focus in processing.
 =item on_focus_out $term
-Called wheneever the window loses keyboard focus, before rxvt-unicode does
+Called whenever the window loses keyboard focus, before rxvt-unicode does
 focus out processing.
 =item on_configure_notify $term, $event
 =item on_property_notify $term, $event
 The current terminal. This variable stores the current C<urxvt::term>
 object, whenever a callback/hook is executing.
 =item @urxvt::TERM_INIT
-All coderefs in this array will be called as methods of the next newly
+All code references in this array will be called as methods of the next newly
 created C<urxvt::term> object (during the C<on_init> phase). The array
-gets cleared before the codereferences that were in it are being executed,
+gets cleared before the code references that were in it are being executed,
-so coderefs can push themselves onto it again if they so desire.
+so references can push themselves onto it again if they so desire.
-This complements to the perl-eval commandline option, but gets executed
+This complements to the perl-eval command line option, but gets executed
 first.
 =item @urxvt::TERM_EXT
 Works similar to C<@TERM_INIT>, but contains perl package/class names, which
 Using this function has the advantage that its output ends up in the
 correct place, e.g. on stderr of the connecting urxvtc client.
 Messages have a size limit of 1023 bytes currently.
+=item @terms = urxvt::termlist
+Returns all urxvt::term objects that exist in this process, regardless of
+whether they are started, being destroyed etc., so be careful. Only term
+objects that have perl extensions attached will be returned (because there
+is no urxvt::term objet associated with others).
 =item $time = urxvt::NOW
 Returns the "current time" (as per the event loop).
 Return the foreground/background colour index, respectively.
 =item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
 =item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
+=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
 Replace the foreground/background colour in the rendition mask with the
 specified one.
 =item $value = urxvt::GET_CUSTOM $rend
          } else {
             $ext_arg{$_} ||= [];
          }
       }
-      while (my ($ext, $argv) = each %ext_arg) {
+      for my $ext (sort keys %ext_arg) {
          my @files = grep -f $_, map "$_/$ext", @dirs;
          if (@files) {
-            $TERM->register_package (extension_package $files[0], $argv);
+            $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
          } else {
             warn "perl extension '$ext' not found in perl library search path\n";
          }
       }
    if (my $cb = $TERM->{_hook}[$htype]) {
       verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
          if $verbosity >= 10;
-      keys %$cb;
+      for my $pkg (keys %$cb) {
-      while (my ($pkg, $cb) = each %$cb) {
-         my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
+         my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
          $retval ||= $retval_;
          if ($@) {
             $TERM->ungrab; # better to lose the grab than the session
             warn $@;
       # clear package
       %$TERM = ();
    }
    $retval
+}
+sub SET_COLOR($$$) {
+   SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
 }
 # urxvt::term::extension
 package urxvt::term::extension;
 hash which defines the environment of the new terminal.
 Croaks (and probably outputs an error message) if the new instance
 couldn't be created.  Returns C<undef> if the new instance didn't
 initialise perl, and the terminal object otherwise. The C<init> and
-C<start> hooks will be called during this call.
+C<start> hooks will be called before this call returns, and are free to
+refer to global data (which is race free).
 =cut
 sub new {
    my ($class, $env, @args) = @_;
+   $env  or Carp::croak "environment hash missing in call to urxvt::term->new";
+   @args or Carp::croak "name argument missing in call to urxvt::term->new";
-   _new ([ map "$_=$env->{$_}", keys %$env ], @args);
+   _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
 }
 =item $term->destroy
 Destroy the terminal object (close the window, free resources
 Returns true if the option specified by C<$optval> is enabled, and
 optionally change it. All option values are stored by name in the hash
 C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
-Here is a a likely non-exhaustive list of option names, please see the
+Here is a likely non-exhaustive list of option names, please see the
 source file F</src/optinc.h> to see the actual list:
  borderLess console cursorBlink cursorUnderline hold iconic insecure
  intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
  override-redirect pastableTabs pointerBlank reverseVideo scrollBar
 likely change).
 Please note that resource strings will currently only be freed when the
 terminal is destroyed, so changing options frequently will eat memory.
-Here is a a likely non-exhaustive list of resource names, not all of which
+Here is a likely non-exhaustive list of resource names, not all of which
 are supported in every build, please see the source file F</src/rsinc.h>
 to see the actual list:
   answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
   borderLess color cursorBlink cursorUnderline cutchars delete_key
 Adds the specified events to the vt event mask. Useful e.g. when you want
 to receive pointer events all the times:
    $term->vt_emask_add (urxvt::PointerMotionMask);
+=item $term->focus_in
+=item $term->focus_out
+=item $term->key_press ($state, $keycode[, $time])
+=item $term->key_release ($state, $keycode[, $time])
+Deliver various fake events to to terminal.
 =item $window_width = $term->width
 =item $window_height = $term->height
 =item $font_width = $term->fwidth
 =item $env = $term->env
 Returns a copy of the environment in effect for the terminal as a hashref
 similar to C<\%ENV>.
+=item @envv = $term->envv
+Returns the environment as array of strings of the form C<VAR=VALUE>.
+=item @argv = $term->argv
+Return the argument vector as this terminal, similar to @ARGV, but
+includes the program name as first element.
 =cut
 sub env {
-   if (my $env = $_[0]->_env) {
-      +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
+   +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
-   } else {
-      +{ %ENV }
-   }
 }
 =item $modifiermask = $term->ModLevel3Mask
 =item $modifiermask = $term->ModMetaMask
 Returns the currently displayed screen (0 primary, 1 secondary).
 =item $cursor_is_hidden = $term->hidden_cursor
-Returns wether the cursor is currently hidden or not.
+Returns whether the cursor is currently hidden or not.
 =item $view_start = $term->view_start ([$newvalue])
 Returns the row number of the topmost displayed line. Maximum value is
 C<0>, which displays the normal terminal contents. Lower values scroll
 where one character corresponds to one screen cell. See
 C<< $term->ROW_t >> for details.
 =item $string = $term->special_decode $text
-Converts rxvt-unicodes text reprsentation into a perl string. See
+Converts rxvt-unicodes text representation into a perl string. See
 C<< $term->ROW_t >> for details.
-=item $success = $term->grab_button ($button, $modifiermask)
+=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
+=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
-Registers a synchronous button grab. See the XGrabButton manpage.
+Register/unregister a synchronous button grab. See the XGrabButton
+manpage.
 =item $success = $term->grab ($eventtime[, $sync])
 Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
-synchronous (C<$sync> is true). Also remembers the grab timestampe.
+synchronous (C<$sync> is true). Also remembers the grab timestamp.
 =item $term->allow_events_async
 Calls XAllowEvents with AsyncBoth for the most recent grab.
    my ($self, $text, $cb) = @_;
    $self->add_item ({ type => "button", text => $text, activate => $cb});
 }
-=item $popup->add_toggle ($text, $cb, $initial_value)
+=item $popup->add_toggle ($text, $initial_value, $cb)
-Adds a toggle/checkbox item to the popup. Teh callback gets called
+Adds a toggle/checkbox item to the popup. The callback gets called
-whenever it gets toggled, with a boolean indicating its value as its first
+whenever it gets toggled, with a boolean indicating its new value as its
-argument.
+first argument.
 =cut
 sub add_toggle {
-   my ($self, $text, $cb, $value) = @_;
+   my ($self, $text, $value, $cb) = @_;
    my $item; $item = {
       type => "button",
       text => "  $text",
       value => $value,
 Set the callback to be called when io events are triggered. C<$reventmask>
 is a bitset as described in the C<events> method.
 =item $iow = $iow->fd ($fd)
-Set the filedescriptor (not handle) to watch.
+Set the file descriptor (not handle) to watch.
 =item $iow = $iow->events ($eventmask)
 Set the event mask to watch. The only allowed values are
 C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
 Start watching for requested events on the given handle.
 =item $iow = $iow->stop
-Stop watching for events on the given filehandle.
+Stop watching for events on the given file handle.
 =back
 =head2 The C<urxvt::iw> Class
 Set the callback to be called when the timer triggers.
 =item $pw = $timer->start ($pid)
-Tells the wqtcher to start watching for process C<$pid>.
+Tells the watcher to start watching for process C<$pid>.
 =item $pw = $pw->stop
 Stop the watcher.
 =item >= 3 - script loading and management
 =item >=10 - all called hooks
-=item >=11 - hook reutrn values
+=item >=11 - hook return values
 =back
 =head1 AUTHOR

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Comparing rxvt-unicode/src/urxvt.pm (file contents): Revision 1.125 by root, Sun Jan 22 20:39:47 2006 UTC vs. Revision 1.145 by root, Thu Aug 10 22:53:20 2006 UTC

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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.125 by root, Sun Jan 22 20:39:47 2006 UTC vs.
Revision 1.145 by root, Thu Aug 10 22:53:20 2006 UTC