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1.17 |
=encoding utf8 |
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1.1 |
=head1 NAME |
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1.11 |
@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
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1.1 |
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=head1 SYNOPSIS |
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1.10 |
# create a file grab_test in $HOME: |
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1.1 |
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sub on_sel_grab { |
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warn "you selected ", $_[0]->selection; |
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1.3 |
() |
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1.1 |
} |
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1.10 |
# start a @@RXVT_NAME@@ using it: |
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@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test |
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1.1 |
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=head1 DESCRIPTION |
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1.8 |
Everytime a terminal object gets created, scripts specified via the |
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1.10 |
C<perl> resource are loaded and associated with it. |
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Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
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thus must be encoded as UTF-8. |
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1.6 |
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Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
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1.16 |
scripts will be shared (but not enabled) for all terminals. |
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1.6 |
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1.17 |
=head2 Prepackaged Extensions |
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1.15 |
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This section describes the extensiosn delivered with this version. You can |
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find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. |
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You can activate them like this: |
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@@RXVT_NAME@@ -pe <extensionname> |
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=over 4 |
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=item selection |
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Miscellaneous selection modifications. |
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=over 4 |
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=item rot13 |
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Rot-13 the selection when activated. Used via keyboard trigger: |
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URxvt.keysym.C-M-r: perl:selection:rot13 |
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=back |
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=item digital-clock |
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Displays a very simple digital clock in the upper right corner of the |
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window. Illustrates overwriting the refresh callbacks to create your own |
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overlays or changes. |
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=item simple-overlay-clock |
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1.18 |
Displays a digital clock using the built-in overlay (colourful, useless). |
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1.15 |
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=back |
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1.6 |
=head2 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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1.7 |
like. All members starting with an underscore (such as C<_ptr> or |
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C<_hook>) are reserved for internal uses and must not be accessed or |
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modified). |
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1.6 |
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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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1.1 |
=head2 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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All of them must return a boolean value. If it is true, then the event |
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counts as being I<consumed>, 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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When in doubt, return a false value (preferably C<()>). |
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=over 4 |
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=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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=item on_reset $term |
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Called after the screen is "reset" 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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=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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=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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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 C<< $term->selection_grab >>. |
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=item on_sel_grab $term, $eventtime |
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Called whenever a selection has been copied, but before the selection is |
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requested from the server. The selection text can be queried and changed |
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by calling C<< $term->selection >>. |
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Returning a true value aborts selection grabbing. It will still be hilighted. |
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=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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=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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=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 C<0> means display the normal terminal, positive values |
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show this many lines of scrollback. |
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=item on_scroll_back $term, $lines, $saved |
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Called whenever lines scroll out of the terminal area into the scrollback |
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buffer. C<$lines> is the number of lines scrolled out and may be larger |
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than the scroll back buffer or the terminal. |
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It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, |
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$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total |
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number of lines that will be in the scrollback buffer. |
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=item on_tty_activity $term *NYI* |
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Called whenever the program(s) running in the urxvt window send output. |
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=item on_refresh_begin $term |
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Called just before the screen gets redrawn. Can be used for overlay |
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or similar effects by modify terminal contents in refresh_begin, and |
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restoring them in refresh_end. The built-in overlay and selection display |
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code is run after this hook, and takes precedence. |
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=item on_refresh_end $term |
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Called just after the screen gets redrawn. See C<on_refresh_begin>. |
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1.11 |
=item on_keyboard_command $term, $string |
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Called whenever the user presses a key combination that has a |
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C<perl:string> action bound to it (see description of the B<keysym> |
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resource in the @@RXVT_NAME@@(1) manpage). |
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1.1 |
=back |
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=head2 Functions in the C<urxvt> Package |
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=over 4 |
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=item urxvt::fatal $errormessage |
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Fatally aborts execution with the given error message. Avoid at all |
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costs! The only time this is acceptable is when the terminal process |
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starts up. |
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=item urxvt::warn $string |
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1.6 |
Calls C<rxvt_warn> with the given string which should not include a |
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1.1 |
newline. The module also overwrites the C<warn> builtin with a function |
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that calls this function. |
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Using this function has the advantage that its output ends up in the |
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correct place, e.g. on stderr of the connecting urxvtc client. |
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=item $time = urxvt::NOW |
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Returns the "current time" (as per the event loop). |
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1.18 |
=head2 RENDITION |
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Rendition bitsets contain information about colour, font, font styles and |
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similar information for each screen cell. |
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The following "macros" deal with changes in rendition sets. You should |
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never just create a bitset, you should always modify an existing one, |
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as they contain important information required for correct operation of |
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rxvt-unicode. |
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=over 4 |
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=item $rend = urxvt::DEFAULT_RSTYLE |
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Returns the default rendition, as used when the terminal is starting up or |
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being reset. Useful as a base to start when creating renditions. |
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=item $rend = urxvt::OVERLAY_RSTYLE |
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Return the rendition mask used for overlays by default. |
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=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline |
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Return the bit that enabled bold, italic, blink, reverse-video and |
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root |
1.19 |
underline, respectively. To enable such a style, just logically OR it into |
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the bitset. |
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1.18 |
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=item $foreground = urxvt::GET_BASEFG $rend |
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=item $background = urxvt::GET_BASEBG $rend |
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Return the foreground/background colour index, respectively. |
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=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) |
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=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) |
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Replace the foreground/background colour in the rendition mask with the |
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specified one. |
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root |
1.19 |
=item $value = urxvt::GET_CUSTOM ($rend) |
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Return the "custom" value: Every rendition has 5 bits for use by |
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extensions. They can be set and changed as you like and are initially |
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zero. |
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=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) |
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Change the custom value. |
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root |
1.18 |
=back |
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1.1 |
=cut |
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package urxvt; |
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use strict; |
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our $term; |
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our @HOOKNAME; |
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our $LIBDIR; |
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261 |
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BEGIN { |
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urxvt->bootstrap; |
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264 |
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# overwrite perl's warn |
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*CORE::GLOBAL::warn = sub { |
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my $msg = join "", @_; |
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$msg .= "\n" |
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unless $msg =~ /\n$/; |
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urxvt::warn ($msg); |
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}; |
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} |
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273 |
root |
1.8 |
my @hook_count; |
274 |
root |
1.7 |
my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; |
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1.1 |
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sub verbose { |
277 |
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my ($level, $msg) = @_; |
278 |
root |
1.8 |
warn "$msg\n" if $level <= $verbosity; |
279 |
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1.1 |
} |
280 |
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# find on_xxx subs in the package and register them |
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# as hooks |
283 |
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sub register_package($) { |
284 |
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my ($pkg) = @_; |
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286 |
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1.7 |
for my $htype (0.. $#HOOKNAME) { |
287 |
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my $name = $HOOKNAME[$htype]; |
288 |
root |
1.1 |
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289 |
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my $ref = $pkg->can ("on_" . lc $name) |
290 |
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or next; |
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292 |
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1.7 |
$term->{_hook}[$htype]{$ref*1} = $ref; |
293 |
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$hook_count[$htype]++ |
294 |
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or set_should_invoke $htype, 1; |
295 |
root |
1.1 |
} |
296 |
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} |
297 |
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298 |
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my $script_pkg = "script0000"; |
299 |
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my %script_pkg; |
300 |
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301 |
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# load a single script into its own package, once only |
302 |
root |
1.7 |
sub script_package($) { |
303 |
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1.1 |
my ($path) = @_; |
304 |
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305 |
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$script_pkg{$path} ||= do { |
306 |
root |
1.8 |
my $pkg = "urxvt::" . ($script_pkg++); |
307 |
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308 |
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1.1 |
verbose 3, "loading script '$path' into package '$pkg'"; |
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310 |
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open my $fh, "<:raw", $path |
311 |
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or die "$path: $!"; |
312 |
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313 |
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1.8 |
my $source = "package $pkg; use strict; use utf8;\n" |
314 |
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. "#line 1 \"$path\"\n{\n" |
315 |
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. (do { local $/; <$fh> }) |
316 |
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. "\n};\n1"; |
317 |
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318 |
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eval $source or die "$path: $@"; |
319 |
root |
1.1 |
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320 |
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$pkg |
321 |
root |
1.7 |
} |
322 |
root |
1.1 |
} |
323 |
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324 |
root |
1.8 |
# called by the rxvt core |
325 |
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sub invoke { |
326 |
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local $term = shift; |
327 |
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my $htype = shift; |
328 |
root |
1.6 |
|
329 |
root |
1.8 |
if ($htype == 0) { # INIT |
330 |
root |
1.9 |
my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); |
331 |
root |
1.6 |
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332 |
root |
1.8 |
for my $ext (split /:/, $term->resource ("perl_ext")) { |
333 |
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my @files = grep -f $_, map "$_/$ext", @dirs; |
334 |
root |
1.6 |
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335 |
root |
1.8 |
if (@files) { |
336 |
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register_package script_package $files[0]; |
337 |
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} else { |
338 |
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warn "perl extension '$ext' not found in perl library search path\n"; |
339 |
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} |
340 |
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} |
341 |
root |
1.6 |
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342 |
root |
1.8 |
} elsif ($htype == 1) { # DESTROY |
343 |
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if (my $hook = $term->{_hook}) { |
344 |
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for my $htype (0..$#$hook) { |
345 |
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$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } |
346 |
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or set_should_invoke $htype, 0; |
347 |
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} |
348 |
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} |
349 |
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} |
350 |
root |
1.6 |
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351 |
root |
1.8 |
my $cb = $term->{_hook}[$htype] |
352 |
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or return; |
353 |
root |
1.6 |
|
354 |
root |
1.8 |
verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" |
355 |
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if $verbosity >= 10; |
356 |
root |
1.7 |
|
357 |
root |
1.8 |
while (my ($k, $v) = each %$cb) { |
358 |
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return 1 if $v->($term, @_); |
359 |
root |
1.7 |
} |
360 |
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361 |
root |
1.8 |
0 |
362 |
root |
1.7 |
} |
363 |
root |
1.1 |
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364 |
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=back |
365 |
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366 |
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=head2 The C<urxvt::term> Class |
367 |
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368 |
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=over 4 |
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1.4 |
=item $value = $term->resource ($name[, $newval]) |
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372 |
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Returns the current resource value associated with a given name and |
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optionally sets a new value. Setting values is most useful in the C<init> |
374 |
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hook. Unset resources are returned and accepted as C<undef>. |
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376 |
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The new value must be properly encoded to a suitable character encoding |
377 |
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before passing it to this method. Similarly, the returned value may need |
378 |
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to be converted from the used encoding to text. |
379 |
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380 |
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Resource names are as defined in F<src/rsinc.h>. Colours can be specified |
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as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will |
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likely change). |
383 |
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384 |
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Please note that resource strings will currently only be freed when the |
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terminal is destroyed, so changing options frequently will eat memory. |
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387 |
root |
1.5 |
Here is a a likely non-exhaustive list of resource names, not all of which |
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are supported in every build, please see the source to see the actual |
389 |
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list: |
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391 |
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answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
392 |
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borderLess color cursorBlink cursorUnderline cutchars delete_key |
393 |
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|
display_name embed ext_bwidth fade font geometry hold iconName |
394 |
|
|
imFont imLocale inputMethod insecure int_bwidth intensityStyles |
395 |
root |
1.8 |
italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier |
396 |
|
|
mouseWheelScrollPage name pastableTabs path perl_eval perl_ext |
397 |
root |
1.6 |
perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd |
398 |
|
|
reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating |
399 |
|
|
scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput |
400 |
|
|
scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle |
401 |
|
|
shade term_name title transparent transparent_all tripleclickwords |
402 |
|
|
utmpInhibit visualBell |
403 |
root |
1.5 |
|
404 |
root |
1.4 |
=cut |
405 |
|
|
|
406 |
|
|
sub urxvt::term::resource($$;$) { |
407 |
|
|
my ($self, $name) = (shift, shift); |
408 |
|
|
unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); |
409 |
|
|
goto &urxvt::term::_resource; |
410 |
|
|
} |
411 |
|
|
|
412 |
root |
1.1 |
=item ($row, $col) = $term->selection_mark ([$row, $col]) |
413 |
|
|
|
414 |
|
|
=item ($row, $col) = $term->selection_beg ([$row, $col]) |
415 |
|
|
|
416 |
|
|
=item ($row, $col) = $term->selection_end ([$row, $col]) |
417 |
|
|
|
418 |
|
|
Return the current values of the selection mark, begin or end positions, |
419 |
|
|
and optionally set them to new values. |
420 |
|
|
|
421 |
|
|
=item $success = $term->selection_grab ($eventtime) |
422 |
|
|
|
423 |
|
|
Try to request the primary selection from the server (for example, as set |
424 |
|
|
by the next method). |
425 |
|
|
|
426 |
|
|
=item $oldtext = $term->selection ([$newtext]) |
427 |
|
|
|
428 |
|
|
Return the current selection text and optionally replace it by C<$newtext>. |
429 |
|
|
|
430 |
|
|
=item $term->scr_overlay ($x, $y, $text) |
431 |
|
|
|
432 |
|
|
Create a simple multi-line overlay box. See the next method for details. |
433 |
|
|
|
434 |
|
|
=cut |
435 |
|
|
|
436 |
|
|
sub urxvt::term::scr_overlay { |
437 |
|
|
my ($self, $x, $y, $text) = @_; |
438 |
|
|
|
439 |
|
|
my @lines = split /\n/, $text; |
440 |
|
|
|
441 |
|
|
my $w = 0; |
442 |
root |
1.6 |
for (map $self->strwidth ($_), @lines) { |
443 |
root |
1.1 |
$w = $_ if $w < $_; |
444 |
|
|
} |
445 |
|
|
|
446 |
|
|
$self->scr_overlay_new ($x, $y, $w, scalar @lines); |
447 |
|
|
$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; |
448 |
|
|
} |
449 |
|
|
|
450 |
|
|
=item $term->scr_overlay_new ($x, $y, $width, $height) |
451 |
|
|
|
452 |
|
|
Create a new (empty) overlay at the given position with the given |
453 |
|
|
width/height. A border will be put around the box. If either C<$x> or |
454 |
|
|
C<$y> is negative, then this is counted from the right/bottom side, |
455 |
|
|
respectively. |
456 |
|
|
|
457 |
|
|
=item $term->scr_overlay_off |
458 |
|
|
|
459 |
|
|
Switch the overlay off again. |
460 |
|
|
|
461 |
|
|
=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE) |
462 |
|
|
|
463 |
|
|
Put a single character (specified numerically) at the given overlay |
464 |
|
|
position. |
465 |
|
|
|
466 |
|
|
=item $term->scr_overlay_set ($x, $y, $text) |
467 |
|
|
|
468 |
|
|
Write a string at the given position into the overlay. |
469 |
|
|
|
470 |
root |
1.6 |
=item $cellwidth = $term->strwidth $string |
471 |
|
|
|
472 |
|
|
Returns the number of screen-cells this string would need. Correctly |
473 |
|
|
accounts for wide and combining characters. |
474 |
|
|
|
475 |
|
|
=item $octets = $term->locale_encode $string |
476 |
|
|
|
477 |
|
|
Convert the given text string into the corresponding locale encoding. |
478 |
|
|
|
479 |
|
|
=item $string = $term->locale_decode $octets |
480 |
|
|
|
481 |
|
|
Convert the given locale-encoded octets into a perl string. |
482 |
|
|
|
483 |
|
|
=item $term->tt_write ($octets) |
484 |
|
|
|
485 |
|
|
Write the octets given in C<$data> to the tty (i.e. as program input). To |
486 |
root |
1.12 |
pass characters instead of octets, you should convert your strings first |
487 |
|
|
to the locale-specific encoding using C<< $term->locale_encode >>. |
488 |
|
|
|
489 |
root |
1.13 |
=item $nrow = $term->nrow |
490 |
|
|
|
491 |
|
|
=item $ncol = $term->ncol |
492 |
|
|
|
493 |
|
|
Return the number of rows/columns of the terminal window (i.e. as |
494 |
|
|
specified by C<-geometry>, excluding any scrollback). |
495 |
|
|
|
496 |
root |
1.12 |
=item $nsaved = $term->nsaved |
497 |
|
|
|
498 |
|
|
Returns the number of lines in the scrollback buffer. |
499 |
|
|
|
500 |
|
|
=item $view_start = $term->view_start ([$newvalue]) |
501 |
|
|
|
502 |
|
|
Returns the negative row number of the topmost line. Minimum value is |
503 |
|
|
C<0>, which displays the normal terminal contents. Larger values scroll |
504 |
|
|
this many lines into the scrollback buffer. |
505 |
|
|
|
506 |
root |
1.14 |
=item $term->want_refresh |
507 |
|
|
|
508 |
|
|
Requests a screen refresh. At the next opportunity, rxvt-unicode will |
509 |
|
|
compare the on-screen display with its stored representation. If they |
510 |
|
|
differ, it redraws the differences. |
511 |
|
|
|
512 |
|
|
Used after changing terminal contents to display them. |
513 |
|
|
|
514 |
root |
1.13 |
=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) |
515 |
root |
1.12 |
|
516 |
|
|
Returns the text of the entire row with number C<$row_number>. Row C<0> |
517 |
|
|
is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost |
518 |
|
|
terminal line. The scrollback buffer starts at line C<-1> and extends to |
519 |
|
|
line C<< -$term->nsaved >>. |
520 |
|
|
|
521 |
root |
1.13 |
If C<$new_text> is specified, it will replace characters in the current |
522 |
|
|
line, starting at column C<$start_col> (default C<0>), which is useful |
523 |
root |
1.18 |
to replace only parts of a line. The font index in the rendition will |
524 |
root |
1.13 |
automatically be updated. |
525 |
root |
1.12 |
|
526 |
|
|
C<$text> is in a special encoding: tabs and wide characters that use more |
527 |
|
|
than one cell when displayed are padded with urxvt::NOCHAR characters |
528 |
|
|
(C<chr 65535>). Characters with combining characters and other characters |
529 |
|
|
that do not fit into the normal tetx encoding will be replaced with |
530 |
|
|
characters in the private use area. |
531 |
|
|
|
532 |
|
|
You have to obey this encoding when changing text. The advantage is |
533 |
|
|
that C<substr> and similar functions work on screen cells and not on |
534 |
|
|
characters. |
535 |
|
|
|
536 |
|
|
The methods C<< $term->special_encode >> and C<< $term->special_decode >> |
537 |
|
|
can be used to convert normal strings into this encoding and vice versa. |
538 |
|
|
|
539 |
root |
1.13 |
=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]]) |
540 |
|
|
|
541 |
|
|
Like C<< $term->ROW_t >>, but returns an arrayref with rendition |
542 |
|
|
bitsets. Rendition bitsets contain information about colour, font, font |
543 |
|
|
styles and similar information. See also C<< $term->ROW_t >>. |
544 |
|
|
|
545 |
|
|
When setting rendition, the font mask will be ignored. |
546 |
root |
1.12 |
|
547 |
root |
1.18 |
See the section on RENDITION, above. |
548 |
root |
1.13 |
|
549 |
|
|
=item $length = $term->ROW_l ($row_number[, $new_length]) |
550 |
|
|
|
551 |
|
|
Returns the number of screen cells that are in use ("the line length"). If |
552 |
|
|
it is C<-1>, then the line is part of a multiple-row logical "line", which |
553 |
|
|
means all characters are in use and it is continued on the next row. |
554 |
root |
1.12 |
|
555 |
|
|
=item $text = $term->special_encode $string |
556 |
|
|
|
557 |
|
|
Converts a perl string into the special encoding used by rxvt-unicode, |
558 |
|
|
where one character corresponds to one screen cell. See |
559 |
|
|
C<< $term->ROW_t >> for details. |
560 |
|
|
|
561 |
|
|
=item $string = $term->special_decode $text |
562 |
|
|
|
563 |
|
|
Converts rxvt-unicodes text reprsentation into a perl string. See |
564 |
|
|
C<< $term->ROW_t >> for details. |
565 |
root |
1.6 |
|
566 |
root |
1.1 |
=back |
567 |
|
|
|
568 |
|
|
=head2 The C<urxvt::timer> Class |
569 |
|
|
|
570 |
|
|
This class implements timer watchers/events. Time is represented as a |
571 |
|
|
fractional number of seconds since the epoch. Example: |
572 |
|
|
|
573 |
|
|
# create a digital clock display in upper right corner |
574 |
|
|
$term->{timer} = urxvt::timer |
575 |
|
|
->new |
576 |
|
|
->start (urxvt::NOW) |
577 |
|
|
->cb (sub { |
578 |
|
|
my ($timer) = @_; |
579 |
|
|
my $time = $timer->at; |
580 |
|
|
$timer->start ($time + 1); |
581 |
|
|
$self->scr_overlay (-1, 0, |
582 |
|
|
POSIX::strftime "%H:%M:%S", localtime $time); |
583 |
|
|
}); |
584 |
|
|
|
585 |
|
|
=over 4 |
586 |
|
|
|
587 |
|
|
=item $timer = new urxvt::timer |
588 |
|
|
|
589 |
|
|
Create a new timer object in stopped state. |
590 |
|
|
|
591 |
|
|
=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
592 |
|
|
|
593 |
|
|
Set the callback to be called when the timer triggers. |
594 |
|
|
|
595 |
|
|
=item $tstamp = $timer->at |
596 |
|
|
|
597 |
|
|
Return the time this watcher will fire next. |
598 |
|
|
|
599 |
|
|
=item $timer = $timer->set ($tstamp) |
600 |
|
|
|
601 |
|
|
Set the time the event is generated to $tstamp. |
602 |
|
|
|
603 |
|
|
=item $timer = $timer->start |
604 |
|
|
|
605 |
|
|
Start the timer. |
606 |
|
|
|
607 |
|
|
=item $timer = $timer->start ($tstamp) |
608 |
|
|
|
609 |
|
|
Set the event trigger time to C<$tstamp> and start the timer. |
610 |
|
|
|
611 |
|
|
=item $timer = $timer->stop |
612 |
|
|
|
613 |
|
|
Stop the timer. |
614 |
|
|
|
615 |
|
|
=back |
616 |
|
|
|
617 |
|
|
=head2 The C<urxvt::iow> Class |
618 |
|
|
|
619 |
|
|
This class implements io watchers/events. Example: |
620 |
|
|
|
621 |
|
|
$term->{socket} = ... |
622 |
|
|
$term->{iow} = urxvt::iow |
623 |
|
|
->new |
624 |
|
|
->fd (fileno $term->{socket}) |
625 |
|
|
->events (1) # wait for read data |
626 |
|
|
->start |
627 |
|
|
->cb (sub { |
628 |
|
|
my ($iow, $revents) = @_; |
629 |
|
|
# $revents must be 1 here, no need to check |
630 |
|
|
sysread $term->{socket}, my $buf, 8192 |
631 |
|
|
or end-of-file; |
632 |
|
|
}); |
633 |
|
|
|
634 |
|
|
|
635 |
|
|
=over 4 |
636 |
|
|
|
637 |
|
|
=item $iow = new urxvt::iow |
638 |
|
|
|
639 |
|
|
Create a new io watcher object in stopped state. |
640 |
|
|
|
641 |
|
|
=item $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... }) |
642 |
|
|
|
643 |
|
|
Set the callback to be called when io events are triggered. C<$reventmask> |
644 |
|
|
is a bitset as described in the C<events> method. |
645 |
|
|
|
646 |
|
|
=item $iow = $iow->fd ($fd) |
647 |
|
|
|
648 |
|
|
Set the filedescriptor (not handle) to watch. |
649 |
|
|
|
650 |
|
|
=item $iow = $iow->events ($eventmask) |
651 |
|
|
|
652 |
|
|
Set the event mask to watch. Bit #0 (value C<1>) enables watching for read |
653 |
|
|
data, Bit #1 (value C<2>) enables watching for write data. |
654 |
|
|
|
655 |
|
|
=item $iow = $iow->start |
656 |
|
|
|
657 |
|
|
Start watching for requested events on the given handle. |
658 |
|
|
|
659 |
|
|
=item $iow = $iow->stop |
660 |
|
|
|
661 |
|
|
Stop watching for events on the given filehandle. |
662 |
|
|
|
663 |
|
|
=back |
664 |
|
|
|
665 |
root |
1.4 |
=head1 ENVIRONMENT |
666 |
|
|
|
667 |
|
|
=head2 URXVT_PERL_VERBOSITY |
668 |
|
|
|
669 |
|
|
This variable controls the verbosity level of the perl extension. Higher |
670 |
|
|
numbers indicate more verbose output. |
671 |
|
|
|
672 |
|
|
=over 4 |
673 |
|
|
|
674 |
|
|
=item 0 - only fatal messages |
675 |
|
|
|
676 |
|
|
=item 3 - script loading and management |
677 |
|
|
|
678 |
|
|
=item 10 - all events received |
679 |
|
|
|
680 |
|
|
=back |
681 |
|
|
|
682 |
root |
1.1 |
=head1 AUTHOR |
683 |
|
|
|
684 |
|
|
Marc Lehmann <pcg@goof.com> |
685 |
|
|
http://software.schmorp.de/pkg/rxvt-unicode |
686 |
|
|
|
687 |
|
|
=cut |
688 |
|
|
|
689 |
|
|
1 |