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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> |
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<html xmlns="http://www.w3.org/1999/xhtml"> |
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<head> |
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<title>rxvtperl - rxvt-unicode's embedded perl interpreter</title> |
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<link rev="made" href="mailto:perl-binary@plan9.de" /> |
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</head> |
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|
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<body style="background-color: white"> |
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|
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<p><a name="__index__"></a></p> |
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<!-- INDEX BEGIN --> |
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|
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<ul> |
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|
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<li><a href="#name">NAME</a></li> |
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<li><a href="#synopsis">SYNOPSIS</a></li> |
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<li><a href="#description">DESCRIPTION</a></li> |
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<li><a href="#prepackaged_extensions">PREPACKAGED EXTENSIONS</a></li> |
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<li><a href="#api_documentation">API DOCUMENTATION</a></li> |
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<ul> |
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|
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<li><a href="#general_api_considerations">General API Considerations</a></li> |
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<li><a href="#extension_objects">Extension Objects</a></li> |
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<li><a href="#hooks">Hooks</a></li> |
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<li><a href="#variables_in_the_urxvt_package">Variables in the <code>urxvt</code> Package</a></li> |
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<li><a href="#functions_in_the_urxvt_package">Functions in the <code>urxvt</code> Package</a></li> |
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<li><a href="#rendition">RENDITION</a></li> |
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<li><a href="#the_urxvt__anyevent_class">The <code>urxvt::anyevent</code> Class</a></li> |
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<li><a href="#the_urxvt__term_class">The <code>urxvt::term</code> Class</a></li> |
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<li><a href="#the_urxvt__popup_class">The <code>urxvt::popup</code> Class</a></li> |
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<li><a href="#the_urxvt__timer_class">The <code>urxvt::timer</code> Class</a></li> |
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<li><a href="#the_urxvt__iow_class">The <code>urxvt::iow</code> Class</a></li> |
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</ul> |
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|
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<li><a href="#environment">ENVIRONMENT</a></li> |
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<ul> |
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|
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<li><a href="#urxvt_perl_verbosity">URXVT_PERL_VERBOSITY</a></li> |
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</ul> |
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|
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<li><a href="#author">AUTHOR</a></li> |
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</ul> |
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<!-- INDEX END --> |
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|
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<hr /> |
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<p> |
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</p> |
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<hr /> |
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<h1><a name="name">NAME</a></h1> |
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<p>rxvtperl - rxvt-unicode's embedded perl interpreter</p> |
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<p> |
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</p> |
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<hr /> |
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<h1><a name="synopsis">SYNOPSIS</a></h1> |
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<pre> |
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# create a file grab_test in $HOME:</pre> |
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<pre> |
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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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}</pre> |
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<pre> |
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# start a rxvt using it:</pre> |
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<pre> |
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rxvt --perl-lib $HOME -pe grab_test</pre> |
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<p> |
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</p> |
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<hr /> |
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<h1><a name="description">DESCRIPTION</a></h1> |
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<p>Everytime a terminal object gets created, extension scripts specified via |
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the <code>perl</code> resource are loaded and associated with it.</p> |
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<p>Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
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thus must be encoded as UTF-8.</p> |
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<p>Each script will only ever be loaded once, even in rxvtd, where |
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scripts will be shared (but not enabled) for all terminals.</p> |
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<p> |
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</p> |
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<hr /> |
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<h1><a name="prepackaged_extensions">PREPACKAGED EXTENSIONS</a></h1> |
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<p>This section describes the extensions delivered with this release. You can |
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find them in <em>/opt/rxvt/lib/urxvt/perl/</em>.</p> |
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<p>You can activate them like this:</p> |
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<pre> |
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rxvt -pe <extensionname></pre> |
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<dl> |
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<dt><strong><a name="item_selection">selection (enabled by default)</a></strong><br /> |
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</dt> |
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<dd> |
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(More) intelligent selection. This extension tries to be more intelligent |
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when the user extends selections (double-click). Right now, it tries to |
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select urls and complete shell-quoted arguments, which is very convenient, |
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too, if your <em>ls</em> supports <code>--quoting-style=shell</code>. |
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</dd> |
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<dd> |
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<p>It also offers the following bindable keyboard command:</p> |
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</dd> |
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<dl> |
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<dt><strong><a name="item_rot13">rot13</a></strong><br /> |
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</dt> |
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<dd> |
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Rot-13 the selection when activated. Used via keyboard trigger: |
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</dd> |
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<dd> |
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<pre> |
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URxvt.keysym.C-M-r: perl:selection:rot13</pre> |
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</dd> |
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<p></p></dl> |
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<dt><strong><a name="item_popup">option-popup (enabled by default)</a></strong><br /> |
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</dt> |
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<dd> |
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Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at |
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runtime. |
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</dd> |
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<p></p> |
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<dt><strong>selection-popup (enabled by default)</strong><br /> |
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</dt> |
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<dd> |
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Binds a popup menu to Ctrl-Button3 that lets you convert the selection |
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text into various other formats/action (such as uri unescaping, perl |
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evalution, web-browser starting etc.), depending on content. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_searchable_2dscrollback_3chotkey_3e__28enabled_by_">searchable-scrollback<hotkey> (enabled by default)</a></strong><br /> |
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</dt> |
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<dd> |
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Adds regex search functionality to the scrollback buffer, triggered |
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by a hotkey (default: <code>M-s</code>). When in search mode, normal terminal |
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input/output is suspended. |
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</dd> |
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<dd> |
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<p><code>/</code> starts an incremental regex search, <code>n</code> searches further, <code>p</code> or |
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<code>N</code> jump to the previous match, <code>G</code> jumps to the bottom and clears the |
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history, <code>enter</code> leaves search mode at the current position and <code>escape</code> |
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returns to the original position.</p> |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_digital_2dclock">digital-clock</a></strong><br /> |
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</dt> |
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<dd> |
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Displays a digital clock using the built-in overlay. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_mark_2durls">mark-urls</a></strong><br /> |
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</dt> |
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<dd> |
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Uses per-line display filtering (<code>on_line_update</code>) to underline urls. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_block_2dgraphics_2dto_2dascii">block-graphics-to-ascii</a></strong><br /> |
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</dt> |
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<dd> |
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A not very useful example of filtering all text output to the terminal, |
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by replacing all line-drawing characters (U+2500 .. U+259F) by a |
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similar-looking ascii character. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_example_2drefresh_2dhooks">example-refresh-hooks</a></strong><br /> |
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</dt> |
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<dd> |
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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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</dd> |
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<p></p></dl> |
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<p> |
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</p> |
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<hr /> |
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<h1><a name="api_documentation">API DOCUMENTATION</a></h1> |
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<p> |
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</p> |
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<h2><a name="general_api_considerations">General API Considerations</a></h2> |
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<p>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 <code>_ptr</code> or |
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<code>_hook</code>) are reserved for internal uses and <strong>MUST NOT</strong> be accessed or |
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modified).</p> |
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<p>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.</p> |
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<p>Argument names also often indicate the type of a parameter. Here are some |
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hints on what they mean:</p> |
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<dl> |
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<dt><strong><a name="item__24text">$text</a></strong><br /> |
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</dt> |
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<dd> |
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Rxvt-unicodes special way of encoding text, where one ``unicode'' character |
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always represents one screen cell. See <em>row_t</em> for a discussion of this format. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item__24string">$string</a></strong><br /> |
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</dt> |
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<dd> |
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A perl text string, with an emphasis on <em>text</em>. It can store all unicode |
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characters and is to be distinguished with text encoded in a specific |
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encoding (often locale-specific) and binary data. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item__24octets">$octets</a></strong><br /> |
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</dt> |
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<dd> |
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Either binary data or - more common - a text string encoded in a |
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locale-specific way. |
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</dd> |
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<p></p></dl> |
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<p> |
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</p> |
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<h2><a name="extension_objects">Extension Objects</a></h2> |
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<p>Very perl extension is a perl class. A separate perl object is created |
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for each terminal and each extension and passed as the first parameter to |
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hooks. So extensions can use their <code>$self</code> object without having to think |
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about other extensions, with the exception of methods and members that |
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begin with an underscore character <code>_</code>: these are reserved for internal |
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use.</p> |
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<p>Although it isn't a <code>urxvt::term</code> object, you can call all methods of the |
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<code>urxvt::term</code> class on this object.</p> |
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<p>It has the following methods and data members:</p> |
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<dl> |
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<dt><strong><a name="item__24urxvt_term__3d__24self_2d_3e_7bterm_7d">$urxvt_term = $self->{term}</a></strong><br /> |
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</dt> |
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<dd> |
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Returns the <code>urxvt::term</code> object associated with this instance of the |
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extension. This member <em>must not</em> be changed in any way. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_enable">$self->enable ($hook_name => $cb, [$hook_name => $cb..])</a></strong><br /> |
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</dt> |
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<dd> |
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Dynamically enable the given hooks (named without the <code>on_</code> prefix) for |
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this extension, replacing any previous hook. This is useful when you want |
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to overwrite time-critical hooks only temporarily. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_disable">$self->disable ($hook_name[, $hook_name..])</a></strong><br /> |
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</dt> |
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<dd> |
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Dynamically disable the given hooks. |
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</dd> |
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<p></p></dl> |
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<p> |
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</p> |
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<h2><a name="hooks">Hooks</a></h2> |
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<p>The following subroutines can be declared in extension files, and will be |
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called whenever the relevant event happens.</p> |
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<p>The first argument passed to them is an extension oject as described in |
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the in the <code>Extension Objects</code> section.</p> |
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<p><strong>All</strong> of these hooks must return a boolean value. If it is true, then the |
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event counts as being <em>consumed</em>, and the invocation of other hooks is |
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skipped, and the relevant action might not be carried out by the C++ code.</p> |
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<p><em>When in doubt, return a false value (preferably <code>()</code>). </em>></p> |
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<dl> |
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<dt><strong><a name="item_on_init__24term">on_init $term</a></strong><br /> |
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</dt> |
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<dd> |
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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. Most methods are unsafe to |
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call or deliver senseless data, as terminal size and other characteristics |
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have not yet been determined. You can safely query and change resources, |
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though. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_reset__24term">on_reset $term</a></strong><br /> |
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</dt> |
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<dd> |
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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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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_start__24term">on_start $term</a></strong><br /> |
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</dt> |
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<dd> |
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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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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_sel_make__24term_2c__24eventtime">on_sel_make $term, $eventtime</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever a selection has been made by the user, but before the |
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selection text is copied, so changes to the beginning, end or type of the |
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selection will be honored. |
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</dd> |
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<dd> |
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<p>Returning a true value aborts selection making by urxvt, in which case you |
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have to make a selection yourself by calling <a href="#item_selection_grab"><code>$term->selection_grab</code></a>.</p> |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_sel_grab__24term_2c__24eventtime">on_sel_grab $term, $eventtime</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever a selection has been copied, but before the selection is |
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requested from the server. The selection text can be queried and changed |
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by calling <a href="#item_selection"><code>$term->selection</code></a>. |
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</dd> |
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<dd> |
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<p>Returning a true value aborts selection grabbing. It will still be hilighted.</p> |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_sel_extend__24term">on_sel_extend $term</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever the user tries to extend the selection (e.g. with a double |
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click) and is either supposed to return false (normal operation), or |
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should extend the selection itelf and return true to suppress the built-in |
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processing. |
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</dd> |
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<dd> |
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<p>See the <em>selection</em> example extension.</p> |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_view_change__24term_2c__24offset">on_view_change $term, $offset</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever the view offset changes, i..e the user or program |
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scrolls. Offset <code>0</code> means display the normal terminal, positive values |
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show this many lines of scrollback. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_scroll_back__24term_2c__24lines_2c__24saved">on_scroll_back $term, $lines, $saved</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever lines scroll out of the terminal area into the scrollback |
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buffer. <code>$lines</code> 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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</dd> |
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<dd> |
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<p>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). <code>$saved</code> is the total |
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number of lines that will be in the scrollback buffer.</p> |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_osc_seq__24term_2c__24string">on_osc_seq $term, $string</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever the <strong>ESC ] 777 ; string ST</strong> command sequence (OSC = |
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operating system command) is processed. Cursor position and other state |
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information is up-to-date when this happens. For interoperability, the |
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string should start with the extension name and a colon, to distinguish |
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it from commands for other extensions, and this might be enforced in the |
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future. |
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</dd> |
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<dd> |
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<p>Be careful not ever to trust (in a security sense) the data you receive, |
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as its source can not easily be controleld (e-mail content, messages from |
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other users on the same system etc.).</p> |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_add_lines__24term_2c__24string">on_add_lines $term, $string</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever text is about to be output, with the text as argument. You |
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can filter/change and output the text yourself by returning a true value |
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and calling <a href="#item_scr_add_lines"><code>$term->scr_add_lines</code></a> yourself. Please note that this |
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might be very slow, however, as your hook is called for <strong>all</strong> text being |
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output. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_tt_write__24term_2c__24octets">on_tt_write $term, $octets</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever some data is written to the tty/pty and can be used to |
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suppress or filter tty input. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_line_update__24term_2c__24row">on_line_update $term, $row</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever a line was updated or changed. Can be used to filter |
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screen output (e.g. underline urls or other useless stuff). Only lines |
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that are being shown will be filtered, and, due to performance reasons, |
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not always immediately. |
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</dd> |
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<dd> |
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<p>The row number is always the topmost row of the line if the line spans |
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multiple rows.</p> |
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</dd> |
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<dd> |
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<p>Please note that, if you change the line, then the hook might get called |
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later with the already-modified line (e.g. if unrelated parts change), so |
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you cannot just toggle rendition bits, but only set them.</p> |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_refresh_begin__24term">on_refresh_begin $term</a></strong><br /> |
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</dt> |
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<dd> |
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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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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_refresh_end__24term">on_refresh_end $term</a></strong><br /> |
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</dt> |
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<dd> |
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Called just after the screen gets redrawn. See <code>on_refresh_begin</code>. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_keyboard_command__24term_2c__24string">on_keyboard_command $term, $string</a></strong><br /> |
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</dt> |
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<dd> |
| 402 |
Called whenever the user presses a key combination that has a |
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<code>perl:string</code> action bound to it (see description of the <strong>keysym</strong> |
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resource in the <code>rxvt(1)</code> manpage). |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_focus_in__24term">on_focus_in $term</a></strong><br /> |
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</dt> |
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<dd> |
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Called whenever the window gets the keyboard focus, before rxvt-unicode |
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does focus in processing. |
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</dd> |
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<p></p> |
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<dt><strong><a name="item_on_focus_out__24term">on_focus_out $term</a></strong><br /> |
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</dt> |
| 416 |
<dd> |
| 417 |
Called wheneever the window loses keyboard focus, before rxvt-unicode does |
| 418 |
focus out processing. |
| 419 |
</dd> |
| 420 |
<p></p> |
| 421 |
<dt><strong><a name="item_on_key_press__24term_2c__24event_2c__24keysym_2c__">on_key_press $term, $event, $keysym, $octets</a></strong><br /> |
| 422 |
</dt> |
| 423 |
<dt><strong><a name="item_on_key_release__24term_2c__24event_2c__24keysym">on_key_release $term, $event, $keysym</a></strong><br /> |
| 424 |
</dt> |
| 425 |
<dt><strong><a name="item_on_button_press__24term_2c__24event">on_button_press $term, $event</a></strong><br /> |
| 426 |
</dt> |
| 427 |
<dt><strong><a name="item_on_button_release__24term_2c__24event">on_button_release $term, $event</a></strong><br /> |
| 428 |
</dt> |
| 429 |
<dt><strong><a name="item_on_motion_notify__24term_2c__24event">on_motion_notify $term, $event</a></strong><br /> |
| 430 |
</dt> |
| 431 |
<dt><strong><a name="item_on_map_notify__24term_2c__24event">on_map_notify $term, $event</a></strong><br /> |
| 432 |
</dt> |
| 433 |
<dt><strong><a name="item_on_unmap_notify__24term_2c__24event">on_unmap_notify $term, $event</a></strong><br /> |
| 434 |
</dt> |
| 435 |
<dd> |
| 436 |
Called whenever the corresponding X event is received for the terminal If |
| 437 |
the hook returns true, then the even will be ignored by rxvt-unicode. |
| 438 |
</dd> |
| 439 |
<dd> |
| 440 |
<p>The event is a hash with most values as named by Xlib (see the XEvent |
| 441 |
manpage), with the additional members <code>row</code> and <code>col</code>, which are the row |
| 442 |
and column under the mouse cursor.</p> |
| 443 |
</dd> |
| 444 |
<dd> |
| 445 |
<p><code>on_key_press</code> additionally receives the string rxvt-unicode would |
| 446 |
output, if any, in locale-specific encoding.</p> |
| 447 |
</dd> |
| 448 |
<dd> |
| 449 |
<p>subwindow.</p> |
| 450 |
</dd> |
| 451 |
<p></p></dl> |
| 452 |
<p> |
| 453 |
</p> |
| 454 |
<h2><a name="variables_in_the_urxvt_package">Variables in the <code>urxvt</code> Package</a></h2> |
| 455 |
<dl> |
| 456 |
<dt><strong><a name="item__24urxvt_3a_3alibdir">$urxvt::LIBDIR</a></strong><br /> |
| 457 |
</dt> |
| 458 |
<dd> |
| 459 |
The rxvt-unicode library directory, where, among other things, the perl |
| 460 |
modules and scripts are stored. |
| 461 |
</dd> |
| 462 |
<p></p> |
| 463 |
<dt><strong><a name="item__24urxvt_3a_3aresclass_2c__24urxvt_3a_3aresclass">$urxvt::RESCLASS, $urxvt::RESCLASS</a></strong><br /> |
| 464 |
</dt> |
| 465 |
<dd> |
| 466 |
The resource class and name rxvt-unicode uses to look up X resources. |
| 467 |
</dd> |
| 468 |
<p></p> |
| 469 |
<dt><strong><a name="item__24urxvt_3a_3arxvtname">$urxvt::RXVTNAME</a></strong><br /> |
| 470 |
</dt> |
| 471 |
<dd> |
| 472 |
The basename of the installed binaries, usually <code>urxvt</code>. |
| 473 |
</dd> |
| 474 |
<p></p> |
| 475 |
<dt><strong><a name="item__24urxvt_3a_3aterm">$urxvt::TERM</a></strong><br /> |
| 476 |
</dt> |
| 477 |
<dd> |
| 478 |
The current terminal. This variable stores the current <code>urxvt::term</code> |
| 479 |
object, whenever a callback/hook is executing. |
| 480 |
</dd> |
| 481 |
<p></p> |
| 482 |
<dt></dt> |
| 483 |
</dl> |
| 484 |
<p> |
| 485 |
</p> |
| 486 |
<h2><a name="functions_in_the_urxvt_package">Functions in the <code>urxvt</code> Package</a></h2> |
| 487 |
<dl> |
| 488 |
<dt><strong><a name="item__24term__3d_new_urxvt__5barg_2e_2e_2e_5d">$term = new urxvt [arg...]</a></strong><br /> |
| 489 |
</dt> |
| 490 |
<dd> |
| 491 |
Creates a new terminal, very similar as if you had started it with |
| 492 |
<code>system $binfile, arg...</code>. Croaks (and probably outputs an error message) |
| 493 |
if the new instance couldn't be created. Returns <code>undef</code> if the new |
| 494 |
instance didn't initialise perl, and the terminal object otherwise. The |
| 495 |
<code>init</code> and <a href="#item_start"><code>start</code></a> hooks will be called during the call. |
| 496 |
</dd> |
| 497 |
<p></p> |
| 498 |
<dt><strong><a name="item_urxvt_3a_3afatal__24errormessage">urxvt::fatal $errormessage</a></strong><br /> |
| 499 |
</dt> |
| 500 |
<dd> |
| 501 |
Fatally aborts execution with the given error message. Avoid at all |
| 502 |
costs! The only time this is acceptable is when the terminal process |
| 503 |
starts up. |
| 504 |
</dd> |
| 505 |
<p></p> |
| 506 |
<dt><strong><a name="item_urxvt_3a_3awarn__24string">urxvt::warn $string</a></strong><br /> |
| 507 |
</dt> |
| 508 |
<dd> |
| 509 |
Calls <code>rxvt_warn</code> with the given string which should not include a |
| 510 |
newline. The module also overwrites the <code>warn</code> builtin with a function |
| 511 |
that calls this function. |
| 512 |
</dd> |
| 513 |
<dd> |
| 514 |
<p>Using this function has the advantage that its output ends up in the |
| 515 |
correct place, e.g. on stderr of the connecting urxvtc client.</p> |
| 516 |
</dd> |
| 517 |
<p></p> |
| 518 |
<dt><strong><a name="item__24is_safe__3d_urxvt_3a_3asafe">$is_safe = urxvt::safe</a></strong><br /> |
| 519 |
</dt> |
| 520 |
<dd> |
| 521 |
Returns true when it is safe to do potentially unsafe things, such as |
| 522 |
evaluating perl code specified by the user. This is true when urxvt was |
| 523 |
started setuid or setgid. |
| 524 |
</dd> |
| 525 |
<p></p> |
| 526 |
<dt><strong><a name="item__24time__3d_urxvt_3a_3anow">$time = urxvt::NOW</a></strong><br /> |
| 527 |
</dt> |
| 528 |
<dd> |
| 529 |
Returns the ``current time'' (as per the event loop). |
| 530 |
</dd> |
| 531 |
<p></p> |
| 532 |
<dt><strong><a name="item_urxvt_3a_3acurrenttime">urxvt::CurrentTime</a></strong><br /> |
| 533 |
</dt> |
| 534 |
<dt><strong><a name="item_urxvt_3a_3ashiftmask_2c_lockmask_2c_controlmask_2c">urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, |
| 535 |
Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, |
| 536 |
Button4Mask, Button5Mask, AnyModifier</a></strong><br /> |
| 537 |
</dt> |
| 538 |
<dd> |
| 539 |
Various constants for use in X calls and event processing. |
| 540 |
</dd> |
| 541 |
<p></p></dl> |
| 542 |
<p> |
| 543 |
</p> |
| 544 |
<h2><a name="rendition">RENDITION</a></h2> |
| 545 |
<p>Rendition bitsets contain information about colour, font, font styles and |
| 546 |
similar information for each screen cell.</p> |
| 547 |
<p>The following ``macros'' deal with changes in rendition sets. You should |
| 548 |
never just create a bitset, you should always modify an existing one, |
| 549 |
as they contain important information required for correct operation of |
| 550 |
rxvt-unicode.</p> |
| 551 |
<dl> |
| 552 |
<dt><strong><a name="item__24rend__3d_urxvt_3a_3adefault_rstyle">$rend = urxvt::DEFAULT_RSTYLE</a></strong><br /> |
| 553 |
</dt> |
| 554 |
<dd> |
| 555 |
Returns the default rendition, as used when the terminal is starting up or |
| 556 |
being reset. Useful as a base to start when creating renditions. |
| 557 |
</dd> |
| 558 |
<p></p> |
| 559 |
<dt><strong><a name="item__24rend__3d_urxvt_3a_3aoverlay_rstyle">$rend = urxvt::OVERLAY_RSTYLE</a></strong><br /> |
| 560 |
</dt> |
| 561 |
<dd> |
| 562 |
Return the rendition mask used for overlays by default. |
| 563 |
</dd> |
| 564 |
<p></p> |
| 565 |
<dt><strong><a name="item__24rendbit__3d_urxvt_3a_3ars_bold_2c_rs_italic_2c_">$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline</a></strong><br /> |
| 566 |
</dt> |
| 567 |
<dd> |
| 568 |
Return the bit that enabled bold, italic, blink, reverse-video and |
| 569 |
underline, respectively. To enable such a style, just logically OR it into |
| 570 |
the bitset. |
| 571 |
</dd> |
| 572 |
<p></p> |
| 573 |
<dt><strong><a name="item__24foreground__3d_urxvt_3a_3aget_basefg__24rend">$foreground = urxvt::GET_BASEFG $rend</a></strong><br /> |
| 574 |
</dt> |
| 575 |
<dt><strong><a name="item__24background__3d_urxvt_3a_3aget_basebg__24rend">$background = urxvt::GET_BASEBG $rend</a></strong><br /> |
| 576 |
</dt> |
| 577 |
<dd> |
| 578 |
Return the foreground/background colour index, respectively. |
| 579 |
</dd> |
| 580 |
<p></p> |
| 581 |
<dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_fgcolor__24rend_2c__24n">$rend = urxvt::SET_FGCOLOR $rend, $new_colour</a></strong><br /> |
| 582 |
</dt> |
| 583 |
<dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_bgcolor__24rend_2c__24n">$rend = urxvt::SET_BGCOLOR $rend, $new_colour</a></strong><br /> |
| 584 |
</dt> |
| 585 |
<dd> |
| 586 |
Replace the foreground/background colour in the rendition mask with the |
| 587 |
specified one. |
| 588 |
</dd> |
| 589 |
<p></p> |
| 590 |
<dt><strong><a name="item__24value__3d_urxvt_3a_3aget_custom__24rend">$value = urxvt::GET_CUSTOM $rend</a></strong><br /> |
| 591 |
</dt> |
| 592 |
<dd> |
| 593 |
Return the ``custom'' value: Every rendition has 5 bits for use by |
| 594 |
extensions. They can be set and changed as you like and are initially |
| 595 |
zero. |
| 596 |
</dd> |
| 597 |
<p></p> |
| 598 |
<dt><strong><a name="item__24rend__3d_urxvt_3a_3aset_custom__24rend_2c__24ne">$rend = urxvt::SET_CUSTOM $rend, $new_value</a></strong><br /> |
| 599 |
</dt> |
| 600 |
<dd> |
| 601 |
Change the custom value. |
| 602 |
</dd> |
| 603 |
<p></p></dl> |
| 604 |
<p> |
| 605 |
</p> |
| 606 |
<h2><a name="the_urxvt__anyevent_class">The <code>urxvt::anyevent</code> Class</a></h2> |
| 607 |
<p>The sole purpose of this class is to deliver an interface to the |
| 608 |
<code>AnyEvent</code> module - any module using it will work inside urxvt without |
| 609 |
further programming. The only exception is that you cannot wait on |
| 610 |
condition variables, but non-blocking condvar use is ok. What this means |
| 611 |
is that you cannot use blocking APIs, but the non-blocking variant should |
| 612 |
work.</p> |
| 613 |
<p> |
| 614 |
</p> |
| 615 |
<h2><a name="the_urxvt__term_class">The <code>urxvt::term</code> Class</a></h2> |
| 616 |
<dl> |
| 617 |
<dt><strong><a name="item_destroy">$term->destroy</a></strong><br /> |
| 618 |
</dt> |
| 619 |
<dd> |
| 620 |
Destroy the terminal object (close the window, free resources |
| 621 |
etc.). Please note that rxvt will not exit as long as any event |
| 622 |
watchers (timers, io watchers) are still active. |
| 623 |
</dd> |
| 624 |
<p></p> |
| 625 |
<dt><strong><a name="item_option">$isset = $term->option ($optval[, $set])</a></strong><br /> |
| 626 |
</dt> |
| 627 |
<dd> |
| 628 |
Returns true if the option specified by <code>$optval</code> is enabled, and |
| 629 |
optionally change it. All option values are stored by name in the hash |
| 630 |
<code>%urxvt::OPTION</code>. Options not enabled in this binary are not in the hash. |
| 631 |
</dd> |
| 632 |
<dd> |
| 633 |
<p>Here is a a likely non-exhaustive list of option names, please see the |
| 634 |
source file <em>/src/optinc.h</em> to see the actual list:</p> |
| 635 |
</dd> |
| 636 |
<dd> |
| 637 |
<pre> |
| 638 |
borderLess console cursorBlink cursorUnderline hold iconic insecure |
| 639 |
intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage |
| 640 |
pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating |
| 641 |
scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer |
| 642 |
secondaryScreen secondaryScroll skipBuiltinGlyphs transparent |
| 643 |
tripleclickwords utmpInhibit visualBell</pre> |
| 644 |
</dd> |
| 645 |
<p></p> |
| 646 |
<dt><strong><a name="item_resource">$value = $term->resource ($name[, $newval])</a></strong><br /> |
| 647 |
</dt> |
| 648 |
<dd> |
| 649 |
Returns the current resource value associated with a given name and |
| 650 |
optionally sets a new value. Setting values is most useful in the <code>init</code> |
| 651 |
hook. Unset resources are returned and accepted as <code>undef</code>. |
| 652 |
</dd> |
| 653 |
<dd> |
| 654 |
<p>The new value must be properly encoded to a suitable character encoding |
| 655 |
before passing it to this method. Similarly, the returned value may need |
| 656 |
to be converted from the used encoding to text.</p> |
| 657 |
</dd> |
| 658 |
<dd> |
| 659 |
<p>Resource names are as defined in <em>src/rsinc.h</em>. Colours can be specified |
| 660 |
as resource names of the form <code>color+<index></code>, e.g. <code>color+5</code>. (will |
| 661 |
likely change).</p> |
| 662 |
</dd> |
| 663 |
<dd> |
| 664 |
<p>Please note that resource strings will currently only be freed when the |
| 665 |
terminal is destroyed, so changing options frequently will eat memory.</p> |
| 666 |
</dd> |
| 667 |
<dd> |
| 668 |
<p>Here is a a likely non-exhaustive list of resource names, not all of which |
| 669 |
are supported in every build, please see the source file <em>/src/rsinc.h</em> |
| 670 |
to see the actual list:</p> |
| 671 |
</dd> |
| 672 |
<dd> |
| 673 |
<pre> |
| 674 |
answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
| 675 |
borderLess color cursorBlink cursorUnderline cutchars delete_key |
| 676 |
display_name embed ext_bwidth fade font geometry hold iconName |
| 677 |
imFont imLocale inputMethod insecure int_bwidth intensityStyles |
| 678 |
italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier |
| 679 |
mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 |
| 680 |
perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd |
| 681 |
reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating |
| 682 |
scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput |
| 683 |
scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle |
| 684 |
shade term_name title transparent transparent_all tripleclickwords |
| 685 |
utmpInhibit visualBell</pre> |
| 686 |
</dd> |
| 687 |
<p></p> |
| 688 |
<dt><strong><a name="item_parse_keysym">$success = $term->parse_keysym ($keysym_spec, $command_string)</a></strong><br /> |
| 689 |
</dt> |
| 690 |
<dd> |
| 691 |
Adds a keymap translation exactly as specified via a resource. See the |
| 692 |
<code>keysym</code> resource in the <code>rxvt(1)</code> manpage. |
| 693 |
</dd> |
| 694 |
<p></p> |
| 695 |
<dt><strong><a name="item_rstyle">$rend = $term->rstyle ([$new_rstyle])</a></strong><br /> |
| 696 |
</dt> |
| 697 |
<dd> |
| 698 |
Return and optionally change the current rendition. Text that is output by |
| 699 |
the terminal application will use this style. |
| 700 |
</dd> |
| 701 |
<p></p> |
| 702 |
<dt><strong><a name="item_screen_cur">($row, $col) = $term->screen_cur ([$row, $col])</a></strong><br /> |
| 703 |
</dt> |
| 704 |
<dd> |
| 705 |
Return the current coordinates of the text cursor position and optionally |
| 706 |
set it (which is usually bad as applications don't expect that). |
| 707 |
</dd> |
| 708 |
<p></p> |
| 709 |
<dt><strong><a name="item_selection_mark">($row, $col) = $term->selection_mark ([$row, $col])</a></strong><br /> |
| 710 |
</dt> |
| 711 |
<dt><strong><a name="item_selection_beg">($row, $col) = $term->selection_beg ([$row, $col])</a></strong><br /> |
| 712 |
</dt> |
| 713 |
<dt><strong><a name="item_selection_end">($row, $col) = $term->selection_end ([$row, $col])</a></strong><br /> |
| 714 |
</dt> |
| 715 |
<dd> |
| 716 |
Return the current values of the selection mark, begin or end positions, |
| 717 |
and optionally set them to new values. |
| 718 |
</dd> |
| 719 |
<p></p> |
| 720 |
<dt><strong><a name="item_selection_grab">$success = $term->selection_grab ($eventtime)</a></strong><br /> |
| 721 |
</dt> |
| 722 |
<dd> |
| 723 |
Try to request the primary selection from the server (for example, as set |
| 724 |
by the next method). |
| 725 |
</dd> |
| 726 |
<p></p> |
| 727 |
<dt><strong>$oldtext = $term->selection ([$newtext])</strong><br /> |
| 728 |
</dt> |
| 729 |
<dd> |
| 730 |
Return the current selection text and optionally replace it by <code>$newtext</code>. |
| 731 |
</dd> |
| 732 |
<p></p> |
| 733 |
<dt><strong><a name="item_overlay_simple">$term->overlay_simple ($x, $y, $text)</a></strong><br /> |
| 734 |
</dt> |
| 735 |
<dd> |
| 736 |
Create a simple multi-line overlay box. See the next method for details. |
| 737 |
</dd> |
| 738 |
<p></p> |
| 739 |
<dt><strong><a name="item_overlay">$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])</a></strong><br /> |
| 740 |
</dt> |
| 741 |
<dd> |
| 742 |
Create a new (empty) overlay at the given position with the given |
| 743 |
width/height. <code>$rstyle</code> defines the initial rendition style |
| 744 |
(default: <code>OVERLAY_RSTYLE</code>). |
| 745 |
</dd> |
| 746 |
<dd> |
| 747 |
<p>If <code>$border</code> is <code>2</code> (default), then a decorative border will be put |
| 748 |
around the box.</p> |
| 749 |
</dd> |
| 750 |
<dd> |
| 751 |
<p>If either <code>$x</code> or <code>$y</code> is negative, then this is counted from the |
| 752 |
right/bottom side, respectively.</p> |
| 753 |
</dd> |
| 754 |
<dd> |
| 755 |
<p>This method returns an urxvt::overlay object. The overlay will be visible |
| 756 |
as long as the perl object is referenced.</p> |
| 757 |
</dd> |
| 758 |
<dd> |
| 759 |
<p>The methods currently supported on <code>urxvt::overlay</code> objects are:</p> |
| 760 |
</dd> |
| 761 |
<dl> |
| 762 |
<dt><strong><a name="item_set">$overlay->set ($x, $y, $text, $rend)</a></strong><br /> |
| 763 |
</dt> |
| 764 |
<dd> |
| 765 |
Similar to <a href="#item_row_t"><code>$term->ROW_t</code></a> and <a href="#item_row_r"><code>$term->ROW_r</code></a> in that it puts |
| 766 |
text in rxvt-unicode's special encoding and an array of rendition values |
| 767 |
at a specific position inside the overlay. |
| 768 |
</dd> |
| 769 |
<p></p> |
| 770 |
<dt><strong><a name="item_hide">$overlay->hide</a></strong><br /> |
| 771 |
</dt> |
| 772 |
<dd> |
| 773 |
If visible, hide the overlay, but do not destroy it. |
| 774 |
</dd> |
| 775 |
<p></p> |
| 776 |
<dt><strong><a name="item_show">$overlay->show</a></strong><br /> |
| 777 |
</dt> |
| 778 |
<dd> |
| 779 |
If hidden, display the overlay again. |
| 780 |
</dd> |
| 781 |
<p></p></dl> |
| 782 |
<dt><strong>$popup = $term->popup ($event)</strong><br /> |
| 783 |
</dt> |
| 784 |
<dd> |
| 785 |
Creates a new <code>urxvt::popup</code> object that implements a popup menu. The |
| 786 |
<code>$event</code> <em>must</em> be the event causing the menu to pop up (a button event, |
| 787 |
currently). |
| 788 |
</dd> |
| 789 |
<p></p> |
| 790 |
<dt><strong><a name="item_strwidth">$cellwidth = $term->strwidth ($string)</a></strong><br /> |
| 791 |
</dt> |
| 792 |
<dd> |
| 793 |
Returns the number of screen-cells this string would need. Correctly |
| 794 |
accounts for wide and combining characters. |
| 795 |
</dd> |
| 796 |
<p></p> |
| 797 |
<dt><strong><a name="item_locale_encode">$octets = $term->locale_encode ($string)</a></strong><br /> |
| 798 |
</dt> |
| 799 |
<dd> |
| 800 |
Convert the given text string into the corresponding locale encoding. |
| 801 |
</dd> |
| 802 |
<p></p> |
| 803 |
<dt><strong><a name="item_locale_decode">$string = $term->locale_decode ($octets)</a></strong><br /> |
| 804 |
</dt> |
| 805 |
<dd> |
| 806 |
Convert the given locale-encoded octets into a perl string. |
| 807 |
</dd> |
| 808 |
<p></p> |
| 809 |
<dt><strong><a name="item_scr_xor_span">$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])</a></strong><br /> |
| 810 |
</dt> |
| 811 |
<dd> |
| 812 |
XORs the rendition values in the given span with the provided value |
| 813 |
(default: <code>RS_RVid</code>). Useful in refresh hooks to provide effects similar |
| 814 |
to the selection. |
| 815 |
</dd> |
| 816 |
<p></p> |
| 817 |
<dt><strong><a name="item_scr_xor_rect">$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])</a></strong><br /> |
| 818 |
</dt> |
| 819 |
<dd> |
| 820 |
Similar to <a href="#item_scr_xor_span"><code>scr_xor_span</code></a>, but xors a rectangle instead. Trailing |
| 821 |
whitespace will additionally be xored with the <code>$rstyle2</code>, which defaults |
| 822 |
to <code>RS_RVid | RS_Uline</code>, which removes reverse video again and underlines |
| 823 |
it instead. |
| 824 |
</dd> |
| 825 |
<p></p> |
| 826 |
<dt><strong><a name="item_scr_bell">$term->scr_bell</a></strong><br /> |
| 827 |
</dt> |
| 828 |
<dd> |
| 829 |
Ring the bell! |
| 830 |
</dd> |
| 831 |
<p></p> |
| 832 |
<dt><strong><a name="item_scr_add_lines">$term->scr_add_lines ($string)</a></strong><br /> |
| 833 |
</dt> |
| 834 |
<dd> |
| 835 |
Write the given text string to the screen, as if output by the application |
| 836 |
running inside the terminal. It may not contain command sequences (escape |
| 837 |
codes), but is free to use line feeds, carriage returns and tabs. The |
| 838 |
string is a normal text string, not in locale-dependent encoding. |
| 839 |
</dd> |
| 840 |
<dd> |
| 841 |
<p>Normally its not a good idea to use this function, as programs might be |
| 842 |
confused by changes in cursor position or scrolling. Its useful inside a |
| 843 |
<code>on_add_lines</code> hook, though.</p> |
| 844 |
</dd> |
| 845 |
<p></p> |
| 846 |
<dt><strong><a name="item_cmd_parse">$term->cmd_parse ($octets)</a></strong><br /> |
| 847 |
</dt> |
| 848 |
<dd> |
| 849 |
Similar to <a href="#item_scr_add_lines"><code>scr_add_lines</code></a>, but the argument must be in the |
| 850 |
locale-specific encoding of the terminal and can contain command sequences |
| 851 |
(escape codes) that will be interpreted. |
| 852 |
</dd> |
| 853 |
<p></p> |
| 854 |
<dt><strong><a name="item_tt_write">$term->tt_write ($octets)</a></strong><br /> |
| 855 |
</dt> |
| 856 |
<dd> |
| 857 |
Write the octets given in <code>$data</code> to the tty (i.e. as program input). To |
| 858 |
pass characters instead of octets, you should convert your strings first |
| 859 |
to the locale-specific encoding using <a href="#item_locale_encode"><code>$term->locale_encode</code></a>. |
| 860 |
</dd> |
| 861 |
<p></p> |
| 862 |
<dt><strong><a name="item_pty_ev_events">$old_events = $term->pty_ev_events ([$new_events])</a></strong><br /> |
| 863 |
</dt> |
| 864 |
<dd> |
| 865 |
Replaces the event mask of the pty watcher by the given event mask. Can |
| 866 |
be used to suppress input and output handling to the pty/tty. See the |
| 867 |
description of <a href="#item_events"><code>urxvt::timer->events</code></a>. Make sure to always restore |
| 868 |
the previous value. |
| 869 |
</dd> |
| 870 |
<p></p> |
| 871 |
<dt><strong><a name="item_parent">$windowid = $term->parent</a></strong><br /> |
| 872 |
</dt> |
| 873 |
<dd> |
| 874 |
Return the window id of the toplevel window. |
| 875 |
</dd> |
| 876 |
<p></p> |
| 877 |
<dt><strong><a name="item_vt">$windowid = $term->vt</a></strong><br /> |
| 878 |
</dt> |
| 879 |
<dd> |
| 880 |
Return the window id of the terminal window. |
| 881 |
</dd> |
| 882 |
<p></p> |
| 883 |
<dt><strong><a name="item_width">$window_width = $term->width</a></strong><br /> |
| 884 |
</dt> |
| 885 |
<dt><strong><a name="item_height">$window_height = $term->height</a></strong><br /> |
| 886 |
</dt> |
| 887 |
<dt><strong><a name="item_fwidth">$font_width = $term->fwidth</a></strong><br /> |
| 888 |
</dt> |
| 889 |
<dt><strong><a name="item_fheight">$font_height = $term->fheight</a></strong><br /> |
| 890 |
</dt> |
| 891 |
<dt><strong><a name="item_fbase">$font_ascent = $term->fbase</a></strong><br /> |
| 892 |
</dt> |
| 893 |
<dt><strong><a name="item_nrow">$terminal_rows = $term->nrow</a></strong><br /> |
| 894 |
</dt> |
| 895 |
<dt><strong><a name="item_ncol">$terminal_columns = $term->ncol</a></strong><br /> |
| 896 |
</dt> |
| 897 |
<dt><strong><a name="item_focus">$has_focus = $term->focus</a></strong><br /> |
| 898 |
</dt> |
| 899 |
<dt><strong><a name="item_mapped">$is_mapped = $term->mapped</a></strong><br /> |
| 900 |
</dt> |
| 901 |
<dt><strong><a name="item_savelines">$max_scrollback = $term->saveLines</a></strong><br /> |
| 902 |
</dt> |
| 903 |
<dt><strong><a name="item_total_rows">$nrow_plus_saveLines = $term->total_rows</a></strong><br /> |
| 904 |
</dt> |
| 905 |
<dt><strong><a name="item_nsaved">$lines_in_scrollback = $term->nsaved</a></strong><br /> |
| 906 |
</dt> |
| 907 |
<dd> |
| 908 |
Return various integers describing terminal characteristics. |
| 909 |
</dd> |
| 910 |
<p></p> |
| 911 |
<dt><strong><a name="item_locale">$lc_ctype = $term->locale</a></strong><br /> |
| 912 |
</dt> |
| 913 |
<dd> |
| 914 |
Returns the LC_CTYPE category string used by this rxvt-unicode. |
| 915 |
</dd> |
| 916 |
<p></p> |
| 917 |
<dt><strong><a name="item_display_id">$x_display = $term->display_id</a></strong><br /> |
| 918 |
</dt> |
| 919 |
<dd> |
| 920 |
Return the DISPLAY used by rxvt-unicode. |
| 921 |
</dd> |
| 922 |
<p></p> |
| 923 |
<dt><strong><a name="item_modlevel3mask">$modifiermask = $term->ModLevel3Mask</a></strong><br /> |
| 924 |
</dt> |
| 925 |
<dt><strong><a name="item_modmetamask">$modifiermask = $term->ModMetaMask</a></strong><br /> |
| 926 |
</dt> |
| 927 |
<dt><strong><a name="item_modnumlockmask">$modifiermask = $term->ModNumLockMask</a></strong><br /> |
| 928 |
</dt> |
| 929 |
<dd> |
| 930 |
Return the modifier masks corresponding to the ``ISO Level 3 Shift'' (often |
| 931 |
AltGr), the meta key (often Alt) and the num lock key, if applicable. |
| 932 |
</dd> |
| 933 |
<p></p> |
| 934 |
<dt><strong><a name="item_view_start">$view_start = $term->view_start ([$newvalue])</a></strong><br /> |
| 935 |
</dt> |
| 936 |
<dd> |
| 937 |
Returns the negative row number of the topmost line. Minimum value is |
| 938 |
<code>0</code>, which displays the normal terminal contents. Larger values scroll |
| 939 |
this many lines into the scrollback buffer. |
| 940 |
</dd> |
| 941 |
<p></p> |
| 942 |
<dt><strong><a name="item_want_refresh">$term->want_refresh</a></strong><br /> |
| 943 |
</dt> |
| 944 |
<dd> |
| 945 |
Requests a screen refresh. At the next opportunity, rxvt-unicode will |
| 946 |
compare the on-screen display with its stored representation. If they |
| 947 |
differ, it redraws the differences. |
| 948 |
</dd> |
| 949 |
<dd> |
| 950 |
<p>Used after changing terminal contents to display them.</p> |
| 951 |
</dd> |
| 952 |
<p></p> |
| 953 |
<dt><strong><a name="item_row_t">$text = $term->ROW_t ($row_number[, $new_text[, $start_col]])</a></strong><br /> |
| 954 |
</dt> |
| 955 |
<dd> |
| 956 |
Returns the text of the entire row with number <code>$row_number</code>. Row <code>0</code> |
| 957 |
is the topmost terminal line, row <code>$term->$ncol-1</code> is the bottommost |
| 958 |
terminal line. The scrollback buffer starts at line <code>-1</code> and extends to |
| 959 |
line <a href="#item_nsaved"><code>-$term->nsaved</code></a>. Nothing will be returned if a nonexistent line |
| 960 |
is requested. |
| 961 |
</dd> |
| 962 |
<dd> |
| 963 |
<p>If <code>$new_text</code> is specified, it will replace characters in the current |
| 964 |
line, starting at column <code>$start_col</code> (default <code>0</code>), which is useful |
| 965 |
to replace only parts of a line. The font index in the rendition will |
| 966 |
automatically be updated.</p> |
| 967 |
</dd> |
| 968 |
<dd> |
| 969 |
<p><a href="#item__24text"><code>$text</code></a> is in a special encoding: tabs and wide characters that use more |
| 970 |
than one cell when displayed are padded with urxvt::NOCHAR characters |
| 971 |
(<code>chr 65535</code>). Characters with combining characters and other characters |
| 972 |
that do not fit into the normal tetx encoding will be replaced with |
| 973 |
characters in the private use area.</p> |
| 974 |
</dd> |
| 975 |
<dd> |
| 976 |
<p>You have to obey this encoding when changing text. The advantage is |
| 977 |
that <code>substr</code> and similar functions work on screen cells and not on |
| 978 |
characters.</p> |
| 979 |
</dd> |
| 980 |
<dd> |
| 981 |
<p>The methods <a href="#item_special_encode"><code>$term->special_encode</code></a> and <a href="#item_special_decode"><code>$term->special_decode</code></a> |
| 982 |
can be used to convert normal strings into this encoding and vice versa.</p> |
| 983 |
</dd> |
| 984 |
<p></p> |
| 985 |
<dt><strong><a name="item_row_r">$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])</a></strong><br /> |
| 986 |
</dt> |
| 987 |
<dd> |
| 988 |
Like <a href="#item_row_t"><code>$term->ROW_t</code></a>, but returns an arrayref with rendition |
| 989 |
bitsets. Rendition bitsets contain information about colour, font, font |
| 990 |
styles and similar information. See also <a href="#item_row_t"><code>$term->ROW_t</code></a>. |
| 991 |
</dd> |
| 992 |
<dd> |
| 993 |
<p>When setting rendition, the font mask will be ignored.</p> |
| 994 |
</dd> |
| 995 |
<dd> |
| 996 |
<p>See the section on RENDITION, above.</p> |
| 997 |
</dd> |
| 998 |
<p></p> |
| 999 |
<dt><strong><a name="item_row_l">$length = $term->ROW_l ($row_number[, $new_length])</a></strong><br /> |
| 1000 |
</dt> |
| 1001 |
<dd> |
| 1002 |
Returns the number of screen cells that are in use (``the line |
| 1003 |
length''). Unlike the urxvt core, this returns <a href="#item_ncol"><code>$term->ncol</code></a> if the |
| 1004 |
line is joined with the following one. |
| 1005 |
</dd> |
| 1006 |
<p></p> |
| 1007 |
<dt><strong><a name="item_is_longer">$bool = $term->is_longer ($row_number)</a></strong><br /> |
| 1008 |
</dt> |
| 1009 |
<dd> |
| 1010 |
Returns true if the row is part of a multiple-row logical ``line'' (i.e. |
| 1011 |
joined with the following row), which means all characters are in use |
| 1012 |
and it is continued on the next row (and possibly a continuation of the |
| 1013 |
previous row(s)). |
| 1014 |
</dd> |
| 1015 |
<p></p> |
| 1016 |
<dt><strong><a name="item_line">$line = $term->line ($row_number)</a></strong><br /> |
| 1017 |
</dt> |
| 1018 |
<dd> |
| 1019 |
Create and return a new <code>urxvt::line</code> object that stores information |
| 1020 |
about the logical line that row <code>$row_number</code> is part of. It supports the |
| 1021 |
following methods: |
| 1022 |
</dd> |
| 1023 |
<dl> |
| 1024 |
<dt><strong><a name="item_t">$text = $line->t ([$new_text])</a></strong><br /> |
| 1025 |
</dt> |
| 1026 |
<dd> |
| 1027 |
Returns or replaces the full text of the line, similar to <a href="#item_row_t"><code>ROW_t</code></a> |
| 1028 |
</dd> |
| 1029 |
<p></p> |
| 1030 |
<dt><strong><a name="item_r">$rend = $line->r ([$new_rend])</a></strong><br /> |
| 1031 |
</dt> |
| 1032 |
<dd> |
| 1033 |
Returns or replaces the full rendition array of the line, similar to <a href="#item_row_r"><code>ROW_r</code></a> |
| 1034 |
</dd> |
| 1035 |
<p></p> |
| 1036 |
<dt><strong><a name="item_l">$length = $line->l</a></strong><br /> |
| 1037 |
</dt> |
| 1038 |
<dd> |
| 1039 |
Returns the length of the line in cells, similar to <a href="#item_row_l"><code>ROW_l</code></a>. |
| 1040 |
</dd> |
| 1041 |
<p></p> |
| 1042 |
<dt><strong><a name="item_beg">$rownum = $line->beg</a></strong><br /> |
| 1043 |
</dt> |
| 1044 |
<dt><strong><a name="item_end">$rownum = $line->end</a></strong><br /> |
| 1045 |
</dt> |
| 1046 |
<dd> |
| 1047 |
Return the row number of the first/last row of the line, respectively. |
| 1048 |
</dd> |
| 1049 |
<p></p> |
| 1050 |
<dt><strong><a name="item_offset_of">$offset = $line->offset_of ($row, $col)</a></strong><br /> |
| 1051 |
</dt> |
| 1052 |
<dd> |
| 1053 |
Returns the character offset of the given row|col pair within the logical |
| 1054 |
line. |
| 1055 |
</dd> |
| 1056 |
<p></p> |
| 1057 |
<dt><strong><a name="item_coord_of">($row, $col) = $line->coord_of ($offset)</a></strong><br /> |
| 1058 |
</dt> |
| 1059 |
<dd> |
| 1060 |
Translates a string offset into terminal coordinates again. |
| 1061 |
</dd> |
| 1062 |
<p></p></dl> |
| 1063 |
<dt><strong><a name="item_special_encode">$text = $term->special_encode $string</a></strong><br /> |
| 1064 |
</dt> |
| 1065 |
<dd> |
| 1066 |
Converts a perl string into the special encoding used by rxvt-unicode, |
| 1067 |
where one character corresponds to one screen cell. See |
| 1068 |
<a href="#item_row_t"><code>$term->ROW_t</code></a> for details. |
| 1069 |
</dd> |
| 1070 |
<p></p> |
| 1071 |
<dt><strong><a name="item_special_decode">$string = $term->special_decode $text</a></strong><br /> |
| 1072 |
</dt> |
| 1073 |
<dd> |
| 1074 |
Converts rxvt-unicodes text reprsentation into a perl string. See |
| 1075 |
<a href="#item_row_t"><code>$term->ROW_t</code></a> for details. |
| 1076 |
</dd> |
| 1077 |
<p></p> |
| 1078 |
<dt><strong><a name="item_grab_button">$success = $term->grab_button ($button, $modifiermask)</a></strong><br /> |
| 1079 |
</dt> |
| 1080 |
<dd> |
| 1081 |
Registers a synchronous button grab. See the XGrabButton manpage. |
| 1082 |
</dd> |
| 1083 |
<p></p> |
| 1084 |
<dt><strong><a name="item_grab">$success = $term->grab ($eventtime[, $sync])</a></strong><br /> |
| 1085 |
</dt> |
| 1086 |
<dd> |
| 1087 |
Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or |
| 1088 |
synchronous (<code>$sync</code> is true). Also remembers the grab timestampe. |
| 1089 |
</dd> |
| 1090 |
<p></p> |
| 1091 |
<dt><strong><a name="item_allow_events_async">$term->allow_events_async</a></strong><br /> |
| 1092 |
</dt> |
| 1093 |
<dd> |
| 1094 |
Calls XAllowEvents with AsyncBoth for the most recent grab. |
| 1095 |
</dd> |
| 1096 |
<p></p> |
| 1097 |
<dt><strong><a name="item_allow_events_sync">$term->allow_events_sync</a></strong><br /> |
| 1098 |
</dt> |
| 1099 |
<dd> |
| 1100 |
Calls XAllowEvents with SyncBoth for the most recent grab. |
| 1101 |
</dd> |
| 1102 |
<p></p> |
| 1103 |
<dt><strong><a name="item_allow_events_replay">$term->allow_events_replay</a></strong><br /> |
| 1104 |
</dt> |
| 1105 |
<dd> |
| 1106 |
Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most |
| 1107 |
recent grab. |
| 1108 |
</dd> |
| 1109 |
<p></p> |
| 1110 |
<dt><strong><a name="item_ungrab">$term->ungrab</a></strong><br /> |
| 1111 |
</dt> |
| 1112 |
<dd> |
| 1113 |
Calls XUngrab for the most recent grab. Is called automatically on |
| 1114 |
evaluation errors, as it is better to lose the grab in the error case as |
| 1115 |
the session. |
| 1116 |
</dd> |
| 1117 |
<p></p></dl> |
| 1118 |
<p> |
| 1119 |
</p> |
| 1120 |
<h2><a name="the_urxvt__popup_class">The <code>urxvt::popup</code> Class</a></h2> |
| 1121 |
<dl> |
| 1122 |
<dt><strong><a name="item_add_title">$popup->add_title ($title)</a></strong><br /> |
| 1123 |
</dt> |
| 1124 |
<dd> |
| 1125 |
Adds a non-clickable title to the popup. |
| 1126 |
</dd> |
| 1127 |
<p></p> |
| 1128 |
<dt><strong><a name="item_add_separator">$popup->add_separator ([$sepchr])</a></strong><br /> |
| 1129 |
</dt> |
| 1130 |
<dd> |
| 1131 |
Creates a separator, optionally using the character given as <code>$sepchr</code>. |
| 1132 |
</dd> |
| 1133 |
<p></p> |
| 1134 |
<dt><strong><a name="item_add_button">$popup->add_button ($text, $cb)</a></strong><br /> |
| 1135 |
</dt> |
| 1136 |
<dd> |
| 1137 |
Adds a clickable button to the popup. <code>$cb</code> is called whenever it is |
| 1138 |
selected. |
| 1139 |
</dd> |
| 1140 |
<p></p> |
| 1141 |
<dt><strong><a name="item_add_toggle">$popup->add_toggle ($text, $cb, $initial_value)</a></strong><br /> |
| 1142 |
</dt> |
| 1143 |
<dd> |
| 1144 |
Adds a toggle/checkbox item to the popup. Teh callback gets called |
| 1145 |
whenever it gets toggled, with a boolean indicating its value as its first |
| 1146 |
argument. |
| 1147 |
</dd> |
| 1148 |
<p></p> |
| 1149 |
<dt><strong>$popup->show</strong><br /> |
| 1150 |
</dt> |
| 1151 |
<dd> |
| 1152 |
Displays the popup (which is initially hidden). |
| 1153 |
</dd> |
| 1154 |
<p></p></dl> |
| 1155 |
<p> |
| 1156 |
</p> |
| 1157 |
<h2><a name="the_urxvt__timer_class">The <code>urxvt::timer</code> Class</a></h2> |
| 1158 |
<p>This class implements timer watchers/events. Time is represented as a |
| 1159 |
fractional number of seconds since the epoch. Example:</p> |
| 1160 |
<pre> |
| 1161 |
$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); |
| 1162 |
$term->{timer} = urxvt::timer |
| 1163 |
->new |
| 1164 |
->interval (1) |
| 1165 |
->cb (sub { |
| 1166 |
$term->{overlay}->set (0, 0, |
| 1167 |
sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); |
| 1168 |
});</pre> |
| 1169 |
<dl> |
| 1170 |
<dt><strong><a name="item__24timer__3d_new_urxvt_3a_3atimer">$timer = new urxvt::timer</a></strong><br /> |
| 1171 |
</dt> |
| 1172 |
<dd> |
| 1173 |
Create a new timer object in started state. It is scheduled to fire |
| 1174 |
immediately. |
| 1175 |
</dd> |
| 1176 |
<p></p> |
| 1177 |
<dt><strong><a name="item_cb">$timer = $timer->cb (sub { my ($timer) = @_; ... })</a></strong><br /> |
| 1178 |
</dt> |
| 1179 |
<dd> |
| 1180 |
Set the callback to be called when the timer triggers. |
| 1181 |
</dd> |
| 1182 |
<p></p> |
| 1183 |
<dt><strong><a name="item_at">$tstamp = $timer->at</a></strong><br /> |
| 1184 |
</dt> |
| 1185 |
<dd> |
| 1186 |
Return the time this watcher will fire next. |
| 1187 |
</dd> |
| 1188 |
<p></p> |
| 1189 |
<dt><strong>$timer = $timer->set ($tstamp)</strong><br /> |
| 1190 |
</dt> |
| 1191 |
<dd> |
| 1192 |
Set the time the event is generated to $tstamp. |
| 1193 |
</dd> |
| 1194 |
<p></p> |
| 1195 |
<dt><strong><a name="item_interval">$timer = $timer->interval ($interval)</a></strong><br /> |
| 1196 |
</dt> |
| 1197 |
<dd> |
| 1198 |
Normally (and when <code>$interval</code> is <code>0</code>), the timer will automatically |
| 1199 |
stop after it has fired once. If <code>$interval</code> is non-zero, then the timer |
| 1200 |
is automatically rescheduled at the given intervals. |
| 1201 |
</dd> |
| 1202 |
<p></p> |
| 1203 |
<dt><strong><a name="item_start">$timer = $timer->start</a></strong><br /> |
| 1204 |
</dt> |
| 1205 |
<dd> |
| 1206 |
Start the timer. |
| 1207 |
</dd> |
| 1208 |
<p></p> |
| 1209 |
<dt><strong>$timer = $timer->start ($tstamp)</strong><br /> |
| 1210 |
</dt> |
| 1211 |
<dd> |
| 1212 |
Set the event trigger time to <code>$tstamp</code> and start the timer. |
| 1213 |
</dd> |
| 1214 |
<p></p> |
| 1215 |
<dt><strong><a name="item_stop">$timer = $timer->stop</a></strong><br /> |
| 1216 |
</dt> |
| 1217 |
<dd> |
| 1218 |
Stop the timer. |
| 1219 |
</dd> |
| 1220 |
<p></p></dl> |
| 1221 |
<p> |
| 1222 |
</p> |
| 1223 |
<h2><a name="the_urxvt__iow_class">The <code>urxvt::iow</code> Class</a></h2> |
| 1224 |
<p>This class implements io watchers/events. Example:</p> |
| 1225 |
<pre> |
| 1226 |
$term->{socket} = ... |
| 1227 |
$term->{iow} = urxvt::iow |
| 1228 |
->new |
| 1229 |
->fd (fileno $term->{socket}) |
| 1230 |
->events (urxvt::EVENT_READ) |
| 1231 |
->start |
| 1232 |
->cb (sub { |
| 1233 |
my ($iow, $revents) = @_; |
| 1234 |
# $revents must be 1 here, no need to check |
| 1235 |
sysread $term->{socket}, my $buf, 8192 |
| 1236 |
or end-of-file; |
| 1237 |
});</pre> |
| 1238 |
<dl> |
| 1239 |
<dt><strong><a name="item__24iow__3d_new_urxvt_3a_3aiow">$iow = new urxvt::iow</a></strong><br /> |
| 1240 |
</dt> |
| 1241 |
<dd> |
| 1242 |
Create a new io watcher object in stopped state. |
| 1243 |
</dd> |
| 1244 |
<p></p> |
| 1245 |
<dt><strong>$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... })</strong><br /> |
| 1246 |
</dt> |
| 1247 |
<dd> |
| 1248 |
Set the callback to be called when io events are triggered. <code>$reventmask</code> |
| 1249 |
is a bitset as described in the <a href="#item_events"><code>events</code></a> method. |
| 1250 |
</dd> |
| 1251 |
<p></p> |
| 1252 |
<dt><strong><a name="item_fd">$iow = $iow->fd ($fd)</a></strong><br /> |
| 1253 |
</dt> |
| 1254 |
<dd> |
| 1255 |
Set the filedescriptor (not handle) to watch. |
| 1256 |
</dd> |
| 1257 |
<p></p> |
| 1258 |
<dt><strong><a name="item_events">$iow = $iow->events ($eventmask)</a></strong><br /> |
| 1259 |
</dt> |
| 1260 |
<dd> |
| 1261 |
Set the event mask to watch. The only allowed values are |
| 1262 |
<code>urxvt::EVENT_READ</code> and <code>urxvt::EVENT_WRITE</code>, which might be ORed |
| 1263 |
together, or <code>urxvt::EVENT_NONE</code>. |
| 1264 |
</dd> |
| 1265 |
<p></p> |
| 1266 |
<dt><strong>$iow = $iow->start</strong><br /> |
| 1267 |
</dt> |
| 1268 |
<dd> |
| 1269 |
Start watching for requested events on the given handle. |
| 1270 |
</dd> |
| 1271 |
<p></p> |
| 1272 |
<dt><strong>$iow = $iow->stop</strong><br /> |
| 1273 |
</dt> |
| 1274 |
<dd> |
| 1275 |
Stop watching for events on the given filehandle. |
| 1276 |
</dd> |
| 1277 |
<p></p></dl> |
| 1278 |
<p> |
| 1279 |
</p> |
| 1280 |
<hr /> |
| 1281 |
<h1><a name="environment">ENVIRONMENT</a></h1> |
| 1282 |
<p> |
| 1283 |
</p> |
| 1284 |
<h2><a name="urxvt_perl_verbosity">URXVT_PERL_VERBOSITY</a></h2> |
| 1285 |
<p>This variable controls the verbosity level of the perl extension. Higher |
| 1286 |
numbers indicate more verbose output.</p> |
| 1287 |
<dl> |
| 1288 |
<dt><strong><a name="item__3d_3d_0__2d_fatal_messages">== 0 - fatal messages</a></strong><br /> |
| 1289 |
</dt> |
| 1290 |
<dt><strong><a name="item__3e_3d_3__2d_script_loading_and_management">>= 3 - script loading and management</a></strong><br /> |
| 1291 |
</dt> |
| 1292 |
<dt><strong><a name="item__3e_3d10__2d_all_events_received">>=10 - all events received</a></strong><br /> |
| 1293 |
</dt> |
| 1294 |
</dl> |
| 1295 |
<p> |
| 1296 |
</p> |
| 1297 |
<hr /> |
| 1298 |
<h1><a name="author">AUTHOR</a></h1> |
| 1299 |
<pre> |
| 1300 |
Marc Lehmann <pcg@goof.com> |
| 1301 |
<a href="http://software.schmorp.de/pkg/rxvt-unicode">http://software.schmorp.de/pkg/rxvt-unicode</a></pre> |
| 1302 |
|
| 1303 |
</body> |
| 1304 |
|
| 1305 |
</html> |
