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=encoding utf8 |
2 |
|
3 |
=head1 NAME |
4 |
|
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@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter |
6 |
|
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=head1 SYNOPSIS |
8 |
|
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# create a file grab_test in $HOME: |
10 |
|
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sub on_sel_grab { |
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warn "you selected ", $_[0]->selection; |
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() |
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} |
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|
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# start a @@RXVT_NAME@@ using it: |
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|
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@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test |
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|
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=head1 DESCRIPTION |
21 |
|
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Everytime a terminal object gets created, extension scripts specified via |
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the C<perl> resource are loaded and associated with it. |
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|
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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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|
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Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where |
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scripts will be shared (but not enabled) for all terminals. |
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|
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=head1 PREPACKAGED EXTENSIONS |
32 |
|
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This section describes the extensions delivered with this release. You can |
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find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. |
35 |
|
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You can activate them like this: |
37 |
|
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@@RXVT_NAME@@ -pe <extensionname> |
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|
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Or by adding them to the resource for extensions loaded by default: |
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|
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URxvt.perl-ext-common: default,automove-background,selection-autotransform |
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|
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=over 4 |
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|
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=item selection (enabled by default) |
47 |
|
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(More) intelligent selection. This extension tries to be more intelligent |
49 |
when the user extends selections (double-click and further clicks). Right |
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now, it tries to select words, urls and complete shell-quoted |
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arguments, which is very convenient, too, if your F<ls> supports |
52 |
C<--quoting-style=shell>. |
53 |
|
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A double-click usually selects the word under the cursor, further clicks |
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will enlarge the selection. |
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|
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The selection works by trying to match a number of regexes and displaying |
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them in increasing order of length. You can add your own regexes by |
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specifying resources of the form: |
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|
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URxvt.selection.pattern-0: perl-regex |
62 |
URxvt.selection.pattern-1: perl-regex |
63 |
... |
64 |
|
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The index number (0, 1...) must not have any holes, and each regex must |
66 |
contain at least one pair of capturing parentheses, which will be used for |
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the match. For example, the followign adds a regex that matches everything |
68 |
between two vertical bars: |
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|
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URxvt.selection.pattern-0: \\|([^|]+)\\| |
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|
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You can look at the source of the selection extension to see more |
73 |
interesting uses, such as parsing a line from beginning to end. |
74 |
|
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This extension also offers following bindable keyboard commands: |
76 |
|
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=over 4 |
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|
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=item rot13 |
80 |
|
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Rot-13 the selection when activated. Used via keyboard trigger: |
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|
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URxvt.keysym.C-M-r: perl:selection:rot13 |
84 |
|
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=back |
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|
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=item option-popup (enabled by default) |
88 |
|
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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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|
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=item selection-popup (enabled by default) |
93 |
|
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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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evaluation, web-browser starting etc.), depending on content. |
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|
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Other extensions can extend this popup menu by pushing a code reference |
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onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the |
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popup is displayed. |
101 |
|
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It's sole argument is the popup menu, which can be modified. The selection |
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is in C<$_>, which can be used to decide wether to add something or not. |
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It should either return nothing or a string and a code reference. The |
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string will be used as button text and the code reference will be called |
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when the button gets activated and should transform C<$_>. |
107 |
|
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The following will add an entry C<a to b> that transforms all C<a>s in |
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the selection to C<b>s, but only if the selection currently contains any |
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C<a>s: |
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|
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push @{ $self->{term}{selection_popup_hook} }, sub { |
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/a/ ? ("a to be" => sub { s/a/b/g } |
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: () |
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}; |
116 |
|
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=item searchable-scrollback<hotkey> (enabled by default) |
118 |
|
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Adds regex search functionality to the scrollback buffer, triggered |
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by a hotkey (default: C<M-s>). While in search mode, normal terminal |
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input/output is suspended and a regex is displayed at the bottom of the |
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screen. |
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|
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Inputting characters appends them to the regex and continues incremental |
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search. C<BackSpace> removes a character from the regex, C<Up> and C<Down> |
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search upwards/downwards in the scrollback buffer, C<End> jumps to the |
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bottom. C<Escape> leaves search mode and returns to the point where search |
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was started, while C<Enter> or C<Return> stay at the current position and |
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additionally stores the first match in the current line into the primary |
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selection. |
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|
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=item selection-autotransform |
133 |
|
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This selection allows you to do automatic transforms on a selection |
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whenever a selection is made. |
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|
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It works by specifying perl snippets (most useful is a single C<s///> |
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operator) that modify C<$_> as resources: |
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|
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URxvt.selection-autotransform.0: transform |
141 |
URxvt.selection-autotransform.1: transform |
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... |
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|
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For example, the following will transform selections of the form |
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C<filename:number>, often seen in compiler messages, into C<vi +$filename |
146 |
$word>: |
147 |
|
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URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ |
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|
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And this example matches the same,but replaces it with vi-commands you can |
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paste directly into your (vi :) editor: |
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|
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URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/ |
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|
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Of course, this can be modified to suit your needs and your editor :) |
156 |
|
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To expand the example above to typical perl error messages ("XXX at |
158 |
FILENAME line YYY."), you need a slightly more elaborate solution: |
159 |
|
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URxvt.selection.pattern-0: ( at .*? line \\d+[,.]) |
161 |
URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/ |
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|
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The first line tells the selection code to treat the unchanging part of |
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every error message as a selection pattern, and the second line transforms |
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the message into vi commands to load the file. |
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|
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=item tabbed |
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|
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This transforms the terminal into a tabbar with additional terminals, that |
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is, it implements what is commonly refered to as "tabbed terminal". The topmost line |
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displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one |
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button per tab. |
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|
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Clicking a button will activate that tab. Pressing B<Shift-Left> and |
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B<Shift-Right> will switch to the tab left or right of the current one, |
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while B<Shift-Down> creates a new tab. |
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|
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=item mark-urls |
179 |
|
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Uses per-line display filtering (C<on_line_update>) to underline urls and |
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make them clickable. When middle-clicked, the program specified in the |
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resource C<urlLauncher> (default C<x-www-browser>) will be started with |
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the URL as first argument. |
184 |
|
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=item automove-background |
186 |
|
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This is basically a one-line extension that dynamically changes the background pixmap offset |
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to the window position, in effect creating the same effect as pseudo transparency with |
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a custom pixmap. No scaling is supported in this mode. Exmaple: |
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|
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@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background |
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|
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=item block-graphics-to-ascii |
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|
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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. |
198 |
|
199 |
=item digital-clock |
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|
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Displays a digital clock using the built-in overlay. |
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|
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=item example-refresh-hooks |
204 |
|
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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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|
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=item selection-pastebin |
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|
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This is a little rarely useful extension that Uploads the selection as |
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textfile to a remote site (or does other things). (The implementation is |
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not currently secure for use in a multiuser environment as it writes to |
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F</tmp> directly.). |
215 |
|
216 |
It listens to the C<selection-pastebin:remote-pastebin> keyboard command, |
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i.e. |
218 |
|
219 |
URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin |
220 |
|
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Pressing this combination runs a command with C<%> replaced by the name of |
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the textfile. This command can be set via a resource: |
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|
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URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/. |
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|
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And the default is likely not useful to anybody but the few people around |
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here :) |
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|
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The name of the textfile is the hex encoded md5 sum of the selection, so |
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the same content should lead to the same filename. |
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|
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After a successful upload the selection will be replaced by the text given |
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in the C<selection-pastebin-url> resource (again, the % is the placeholder |
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for the filename): |
235 |
|
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URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% |
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|
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=back |
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|
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=head1 API DOCUMENTATION |
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|
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=head2 General API Considerations |
243 |
|
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All objects (such as terminals, time watchers etc.) are typical |
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reference-to-hash objects. The hash can be used to store anything you |
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like. All members starting with an underscore (such as C<_ptr> or |
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C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or |
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modified). |
249 |
|
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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. |
254 |
|
255 |
Argument names also often indicate the type of a parameter. Here are some |
256 |
hints on what they mean: |
257 |
|
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=over 4 |
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|
260 |
=item $text |
261 |
|
262 |
Rxvt-unicodes special way of encoding text, where one "unicode" character |
263 |
always represents one screen cell. See L<ROW_t> for a discussion of this format. |
264 |
|
265 |
=item $string |
266 |
|
267 |
A perl text string, with an emphasis on I<text>. 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. |
270 |
|
271 |
=item $octets |
272 |
|
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Either binary data or - more common - a text string encoded in a |
274 |
locale-specific way. |
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|
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=back |
277 |
|
278 |
=head2 Extension Objects |
279 |
|
280 |
Very perl extension is a perl class. A separate perl object is created |
281 |
for each terminal and each extension and passed as the first parameter to |
282 |
hooks. So extensions can use their C<$self> object without having to think |
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about other extensions, with the exception of methods and members that |
284 |
begin with an underscore character C<_>: these are reserved for internal |
285 |
use. |
286 |
|
287 |
Although it isn't a C<urxvt::term> object, you can call all methods of the |
288 |
C<urxvt::term> class on this object. |
289 |
|
290 |
It has the following methods and data members: |
291 |
|
292 |
=over 4 |
293 |
|
294 |
=item $urxvt_term = $self->{term} |
295 |
|
296 |
Returns the C<urxvt::term> object associated with this instance of the |
297 |
extension. This member I<must not> be changed in any way. |
298 |
|
299 |
=item $self->enable ($hook_name => $cb, [$hook_name => $cb..]) |
300 |
|
301 |
Dynamically enable the given hooks (named without the C<on_> prefix) for |
302 |
this extension, replacing any previous hook. This is useful when you want |
303 |
to overwrite time-critical hooks only temporarily. |
304 |
|
305 |
=item $self->disable ($hook_name[, $hook_name..]) |
306 |
|
307 |
Dynamically disable the given hooks. |
308 |
|
309 |
=back |
310 |
|
311 |
=head2 Hooks |
312 |
|
313 |
The following subroutines can be declared in extension files, and will be |
314 |
called whenever the relevant event happens. |
315 |
|
316 |
The first argument passed to them is an extension oject as described in |
317 |
the in the C<Extension Objects> section. |
318 |
|
319 |
B<All> of these hooks must return a boolean value. If any of the called |
320 |
hooks returns true, then the event counts as being I<consumed>, and the |
321 |
relevant action might not be carried out by the C++ code. |
322 |
|
323 |
I<< When in doubt, return a false value (preferably C<()>). >> |
324 |
|
325 |
=over 4 |
326 |
|
327 |
=item on_init $term |
328 |
|
329 |
Called after a new terminal object has been initialized, but before |
330 |
windows are created or the command gets run. Most methods are unsafe to |
331 |
call or deliver senseless data, as terminal size and other characteristics |
332 |
have not yet been determined. You can safely query and change resources |
333 |
and options, though. For many purposes the C<on_start> hook is a better |
334 |
place. |
335 |
|
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=item on_start $term |
337 |
|
338 |
Called at the very end of initialisation of a new terminal, just before |
339 |
trying to map (display) the toplevel and returning to the mainloop. |
340 |
|
341 |
=item on_destroy $term |
342 |
|
343 |
Called whenever something tries to destroy terminal, before doing anything |
344 |
yet. If this hook returns true, then destruction is skipped, but this is |
345 |
rarely a good idea. |
346 |
|
347 |
=item on_reset $term |
348 |
|
349 |
Called after the screen is "reset" for any reason, such as resizing or |
350 |
control sequences. Here is where you can react on changes to size-related |
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variables. |
352 |
|
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=item on_child_start $term, $pid |
354 |
|
355 |
Called just after the child process has been C<fork>ed. |
356 |
|
357 |
=item on_child_exit $term, $status |
358 |
|
359 |
Called just after the child process has exited. C<$status> is the status |
360 |
from C<waitpid>. |
361 |
|
362 |
=item on_sel_make $term, $eventtime |
363 |
|
364 |
Called whenever a selection has been made by the user, but before the |
365 |
selection text is copied, so changes to the beginning, end or type of the |
366 |
selection will be honored. |
367 |
|
368 |
Returning a true value aborts selection making by urxvt, in which case you |
369 |
have to make a selection yourself by calling C<< $term->selection_grab >>. |
370 |
|
371 |
=item on_sel_grab $term, $eventtime |
372 |
|
373 |
Called whenever a selection has been copied, but before the selection is |
374 |
requested from the server. The selection text can be queried and changed |
375 |
by calling C<< $term->selection >>. |
376 |
|
377 |
Returning a true value aborts selection grabbing. It will still be hilighted. |
378 |
|
379 |
=item on_sel_extend $term |
380 |
|
381 |
Called whenever the user tries to extend the selection (e.g. with a double |
382 |
click) and is either supposed to return false (normal operation), or |
383 |
should extend the selection itelf and return true to suppress the built-in |
384 |
processing. This can happen multiple times, as long as the callback |
385 |
returns true, it will be called on every further click by the user and is |
386 |
supposed to enlarge the selection more and more, if possible. |
387 |
|
388 |
See the F<selection> example extension. |
389 |
|
390 |
=item on_view_change $term, $offset |
391 |
|
392 |
Called whenever the view offset changes, i..e the user or program |
393 |
scrolls. Offset C<0> means display the normal terminal, positive values |
394 |
show this many lines of scrollback. |
395 |
|
396 |
=item on_scroll_back $term, $lines, $saved |
397 |
|
398 |
Called whenever lines scroll out of the terminal area into the scrollback |
399 |
buffer. C<$lines> is the number of lines scrolled out and may be larger |
400 |
than the scroll back buffer or the terminal. |
401 |
|
402 |
It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, |
403 |
$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total |
404 |
number of lines that will be in the scrollback buffer. |
405 |
|
406 |
=item on_osc_seq $term, $string |
407 |
|
408 |
Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = |
409 |
operating system command) is processed. Cursor position and other state |
410 |
information is up-to-date when this happens. For interoperability, the |
411 |
string should start with the extension name and a colon, to distinguish |
412 |
it from commands for other extensions, and this might be enforced in the |
413 |
future. |
414 |
|
415 |
Be careful not ever to trust (in a security sense) the data you receive, |
416 |
as its source can not easily be controleld (e-mail content, messages from |
417 |
other users on the same system etc.). |
418 |
|
419 |
=item on_add_lines $term, $string |
420 |
|
421 |
Called whenever text is about to be output, with the text as argument. You |
422 |
can filter/change and output the text yourself by returning a true value |
423 |
and calling C<< $term->scr_add_lines >> yourself. Please note that this |
424 |
might be very slow, however, as your hook is called for B<all> text being |
425 |
output. |
426 |
|
427 |
=item on_tt_write $term, $octets |
428 |
|
429 |
Called whenever some data is written to the tty/pty and can be used to |
430 |
suppress or filter tty input. |
431 |
|
432 |
=item on_line_update $term, $row |
433 |
|
434 |
Called whenever a line was updated or changed. Can be used to filter |
435 |
screen output (e.g. underline urls or other useless stuff). Only lines |
436 |
that are being shown will be filtered, and, due to performance reasons, |
437 |
not always immediately. |
438 |
|
439 |
The row number is always the topmost row of the line if the line spans |
440 |
multiple rows. |
441 |
|
442 |
Please note that, if you change the line, then the hook might get called |
443 |
later with the already-modified line (e.g. if unrelated parts change), so |
444 |
you cannot just toggle rendition bits, but only set them. |
445 |
|
446 |
=item on_refresh_begin $term |
447 |
|
448 |
Called just before the screen gets redrawn. Can be used for overlay |
449 |
or similar effects by modify terminal contents in refresh_begin, and |
450 |
restoring them in refresh_end. The built-in overlay and selection display |
451 |
code is run after this hook, and takes precedence. |
452 |
|
453 |
=item on_refresh_end $term |
454 |
|
455 |
Called just after the screen gets redrawn. See C<on_refresh_begin>. |
456 |
|
457 |
=item on_keyboard_command $term, $string |
458 |
|
459 |
Called whenever the user presses a key combination that has a |
460 |
C<perl:string> action bound to it (see description of the B<keysym> |
461 |
resource in the @@RXVT_NAME@@(1) manpage). |
462 |
|
463 |
=item on_x_event $term, $event |
464 |
|
465 |
Called on every X event received on the vt window (and possibly other |
466 |
windows). Should only be used as a last resort. Most event structure |
467 |
members are not passed. |
468 |
|
469 |
=item on_focus_in $term |
470 |
|
471 |
Called whenever the window gets the keyboard focus, before rxvt-unicode |
472 |
does focus in processing. |
473 |
|
474 |
=item on_focus_out $term |
475 |
|
476 |
Called wheneever the window loses keyboard focus, before rxvt-unicode does |
477 |
focus out processing. |
478 |
|
479 |
=item on_configure_notify $term, $event |
480 |
|
481 |
=item on_property_notify $term, $event |
482 |
|
483 |
=item on_key_press $term, $event, $keysym, $octets |
484 |
|
485 |
=item on_key_release $term, $event, $keysym |
486 |
|
487 |
=item on_button_press $term, $event |
488 |
|
489 |
=item on_button_release $term, $event |
490 |
|
491 |
=item on_motion_notify $term, $event |
492 |
|
493 |
=item on_map_notify $term, $event |
494 |
|
495 |
=item on_unmap_notify $term, $event |
496 |
|
497 |
Called whenever the corresponding X event is received for the terminal If |
498 |
the hook returns true, then the even will be ignored by rxvt-unicode. |
499 |
|
500 |
The event is a hash with most values as named by Xlib (see the XEvent |
501 |
manpage), with the additional members C<row> and C<col>, which are the row |
502 |
and column under the mouse cursor. |
503 |
|
504 |
C<on_key_press> additionally receives the string rxvt-unicode would |
505 |
output, if any, in locale-specific encoding. |
506 |
|
507 |
subwindow. |
508 |
|
509 |
=item on_client_message $term, $event |
510 |
|
511 |
=item on_wm_protocols $term, $event |
512 |
|
513 |
=item on_wm_delete_window $term, $event |
514 |
|
515 |
Called when various types of ClientMessage events are received (all with |
516 |
format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW). |
517 |
|
518 |
=back |
519 |
|
520 |
=cut |
521 |
|
522 |
package urxvt; |
523 |
|
524 |
use utf8; |
525 |
use strict; |
526 |
use Carp (); |
527 |
use Scalar::Util (); |
528 |
use List::Util (); |
529 |
|
530 |
our $VERSION = 1; |
531 |
our $TERM; |
532 |
our @TERM_INIT; |
533 |
our @TERM_EXT; |
534 |
our @HOOKNAME; |
535 |
our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; |
536 |
our %OPTION; |
537 |
|
538 |
our $LIBDIR; |
539 |
our $RESNAME; |
540 |
our $RESCLASS; |
541 |
our $RXVTNAME; |
542 |
|
543 |
=head2 Variables in the C<urxvt> Package |
544 |
|
545 |
=over 4 |
546 |
|
547 |
=item $urxvt::LIBDIR |
548 |
|
549 |
The rxvt-unicode library directory, where, among other things, the perl |
550 |
modules and scripts are stored. |
551 |
|
552 |
=item $urxvt::RESCLASS, $urxvt::RESCLASS |
553 |
|
554 |
The resource class and name rxvt-unicode uses to look up X resources. |
555 |
|
556 |
=item $urxvt::RXVTNAME |
557 |
|
558 |
The basename of the installed binaries, usually C<urxvt>. |
559 |
|
560 |
=item $urxvt::TERM |
561 |
|
562 |
The current terminal. This variable stores the current C<urxvt::term> |
563 |
object, whenever a callback/hook is executing. |
564 |
|
565 |
=item @urxvt::TERM_INIT |
566 |
|
567 |
All coderefs in this array will be called as methods of the next newly |
568 |
created C<urxvt::term> object (during the C<on_init> phase). The array |
569 |
gets cleared before the codereferences that were in it are being executed, |
570 |
so coderefs can push themselves onto it again if they so desire. |
571 |
|
572 |
This complements to the perl-eval commandline option, but gets executed |
573 |
first. |
574 |
|
575 |
=item @urxvt::TERM_EXT |
576 |
|
577 |
Works similar to C<@TERM_INIT>, but contains perl package/class names, which |
578 |
get registered as normal extensions after calling the hooks in C<@TERM_INIT> |
579 |
but before other extensions. Gets cleared just like C<@TERM_INIT>. |
580 |
|
581 |
=back |
582 |
|
583 |
=head2 Functions in the C<urxvt> Package |
584 |
|
585 |
=over 4 |
586 |
|
587 |
=item urxvt::fatal $errormessage |
588 |
|
589 |
Fatally aborts execution with the given error message. Avoid at all |
590 |
costs! The only time this is acceptable is when the terminal process |
591 |
starts up. |
592 |
|
593 |
=item urxvt::warn $string |
594 |
|
595 |
Calls C<rxvt_warn> with the given string which should not include a |
596 |
newline. The module also overwrites the C<warn> builtin with a function |
597 |
that calls this function. |
598 |
|
599 |
Using this function has the advantage that its output ends up in the |
600 |
correct place, e.g. on stderr of the connecting urxvtc client. |
601 |
|
602 |
Messages have a size limit of 1023 bytes currently. |
603 |
|
604 |
=item $time = urxvt::NOW |
605 |
|
606 |
Returns the "current time" (as per the event loop). |
607 |
|
608 |
=item urxvt::CurrentTime |
609 |
|
610 |
=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, |
611 |
Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, |
612 |
Button4Mask, Button5Mask, AnyModifier |
613 |
|
614 |
=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask, |
615 |
ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask, |
616 |
PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask, |
617 |
Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask, |
618 |
KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask, |
619 |
ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask, |
620 |
FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask |
621 |
|
622 |
=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify, |
623 |
EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose, |
624 |
GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify, |
625 |
UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify, |
626 |
ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, |
627 |
CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, |
628 |
SelectionNotify, ColormapNotify, ClientMessage, MappingNotify |
629 |
|
630 |
Various constants for use in X calls and event processing. |
631 |
|
632 |
=back |
633 |
|
634 |
=head2 RENDITION |
635 |
|
636 |
Rendition bitsets contain information about colour, font, font styles and |
637 |
similar information for each screen cell. |
638 |
|
639 |
The following "macros" deal with changes in rendition sets. You should |
640 |
never just create a bitset, you should always modify an existing one, |
641 |
as they contain important information required for correct operation of |
642 |
rxvt-unicode. |
643 |
|
644 |
=over 4 |
645 |
|
646 |
=item $rend = urxvt::DEFAULT_RSTYLE |
647 |
|
648 |
Returns the default rendition, as used when the terminal is starting up or |
649 |
being reset. Useful as a base to start when creating renditions. |
650 |
|
651 |
=item $rend = urxvt::OVERLAY_RSTYLE |
652 |
|
653 |
Return the rendition mask used for overlays by default. |
654 |
|
655 |
=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline |
656 |
|
657 |
Return the bit that enabled bold, italic, blink, reverse-video and |
658 |
underline, respectively. To enable such a style, just logically OR it into |
659 |
the bitset. |
660 |
|
661 |
=item $foreground = urxvt::GET_BASEFG $rend |
662 |
|
663 |
=item $background = urxvt::GET_BASEBG $rend |
664 |
|
665 |
Return the foreground/background colour index, respectively. |
666 |
|
667 |
=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour |
668 |
|
669 |
=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour |
670 |
|
671 |
Replace the foreground/background colour in the rendition mask with the |
672 |
specified one. |
673 |
|
674 |
=item $value = urxvt::GET_CUSTOM $rend |
675 |
|
676 |
Return the "custom" value: Every rendition has 5 bits for use by |
677 |
extensions. They can be set and changed as you like and are initially |
678 |
zero. |
679 |
|
680 |
=item $rend = urxvt::SET_CUSTOM $rend, $new_value |
681 |
|
682 |
Change the custom value. |
683 |
|
684 |
=back |
685 |
|
686 |
=cut |
687 |
|
688 |
BEGIN { |
689 |
# overwrite perl's warn |
690 |
*CORE::GLOBAL::warn = sub { |
691 |
my $msg = join "", @_; |
692 |
$msg .= "\n" |
693 |
unless $msg =~ /\n$/; |
694 |
urxvt::warn ($msg); |
695 |
}; |
696 |
} |
697 |
|
698 |
my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; |
699 |
|
700 |
sub verbose { |
701 |
my ($level, $msg) = @_; |
702 |
warn "$msg\n" if $level <= $verbosity; |
703 |
} |
704 |
|
705 |
my %extension_pkg; |
706 |
|
707 |
# load a single script into its own package, once only |
708 |
sub extension_package($) { |
709 |
my ($path) = @_; |
710 |
|
711 |
$extension_pkg{$path} ||= do { |
712 |
$path =~ /([^\/\\]+)$/; |
713 |
my $pkg = $1; |
714 |
$pkg =~ s/[^[:word:]]/_/g; |
715 |
$pkg = "urxvt::ext::$pkg"; |
716 |
|
717 |
verbose 3, "loading extension '$path' into package '$pkg'"; |
718 |
|
719 |
open my $fh, "<:raw", $path |
720 |
or die "$path: $!"; |
721 |
|
722 |
my $source = |
723 |
"package $pkg; use strict; use utf8;\n" |
724 |
. "#line 1 \"$path\"\n{\n" |
725 |
. (do { local $/; <$fh> }) |
726 |
. "\n};\n1"; |
727 |
|
728 |
eval $source |
729 |
or die "$path: $@"; |
730 |
|
731 |
$pkg |
732 |
} |
733 |
} |
734 |
|
735 |
our $retval; # return value for urxvt |
736 |
|
737 |
# called by the rxvt core |
738 |
sub invoke { |
739 |
local $TERM = shift; |
740 |
my $htype = shift; |
741 |
|
742 |
if ($htype == 0) { # INIT |
743 |
my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); |
744 |
|
745 |
my %ext_arg; |
746 |
|
747 |
{ |
748 |
my @init = @TERM_INIT; |
749 |
@TERM_INIT = (); |
750 |
$_->($TERM) for @init; |
751 |
my @pkg = @TERM_EXT; |
752 |
@TERM_EXT = (); |
753 |
$TERM->register_package ($_) for @pkg; |
754 |
} |
755 |
|
756 |
for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { |
757 |
if ($_ eq "default") { |
758 |
$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); |
759 |
} elsif (/^-(.*)$/) { |
760 |
delete $ext_arg{$1}; |
761 |
} elsif (/^([^<]+)<(.*)>$/) { |
762 |
push @{ $ext_arg{$1} }, $2; |
763 |
} else { |
764 |
$ext_arg{$_} ||= []; |
765 |
} |
766 |
} |
767 |
|
768 |
while (my ($ext, $argv) = each %ext_arg) { |
769 |
my @files = grep -f $_, map "$_/$ext", @dirs; |
770 |
|
771 |
if (@files) { |
772 |
$TERM->register_package (extension_package $files[0], $argv); |
773 |
} else { |
774 |
warn "perl extension '$ext' not found in perl library search path\n"; |
775 |
} |
776 |
} |
777 |
|
778 |
eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval"); |
779 |
warn $@ if $@; |
780 |
} |
781 |
|
782 |
$retval = undef; |
783 |
|
784 |
if (my $cb = $TERM->{_hook}[$htype]) { |
785 |
verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" |
786 |
if $verbosity >= 10; |
787 |
|
788 |
keys %$cb; |
789 |
|
790 |
while (my ($pkg, $cb) = each %$cb) { |
791 |
my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }; |
792 |
$retval ||= $retval_; |
793 |
|
794 |
if ($@) { |
795 |
$TERM->ungrab; # better to lose the grab than the session |
796 |
warn $@; |
797 |
} |
798 |
} |
799 |
|
800 |
verbose 11, "$HOOKNAME[$htype] returning <$retval>" |
801 |
if $verbosity >= 11; |
802 |
} |
803 |
|
804 |
if ($htype == 1) { # DESTROY |
805 |
# clear package objects |
806 |
%$_ = () for values %{ $TERM->{_pkg} }; |
807 |
|
808 |
# clear package |
809 |
%$TERM = (); |
810 |
} |
811 |
|
812 |
$retval |
813 |
} |
814 |
|
815 |
# urxvt::term::extension |
816 |
|
817 |
package urxvt::term::extension; |
818 |
|
819 |
sub enable { |
820 |
my ($self, %hook) = @_; |
821 |
my $pkg = $self->{_pkg}; |
822 |
|
823 |
while (my ($name, $cb) = each %hook) { |
824 |
my $htype = $HOOKTYPE{uc $name}; |
825 |
defined $htype |
826 |
or Carp::croak "unsupported hook type '$name'"; |
827 |
|
828 |
$self->set_should_invoke ($htype, +1) |
829 |
unless exists $self->{term}{_hook}[$htype]{$pkg}; |
830 |
|
831 |
$self->{term}{_hook}[$htype]{$pkg} = $cb; |
832 |
} |
833 |
} |
834 |
|
835 |
sub disable { |
836 |
my ($self, @hook) = @_; |
837 |
my $pkg = $self->{_pkg}; |
838 |
|
839 |
for my $name (@hook) { |
840 |
my $htype = $HOOKTYPE{uc $name}; |
841 |
defined $htype |
842 |
or Carp::croak "unsupported hook type '$name'"; |
843 |
|
844 |
$self->set_should_invoke ($htype, -1) |
845 |
if delete $self->{term}{_hook}[$htype]{$pkg}; |
846 |
} |
847 |
} |
848 |
|
849 |
our $AUTOLOAD; |
850 |
|
851 |
sub AUTOLOAD { |
852 |
$AUTOLOAD =~ /:([^:]+)$/ |
853 |
or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable"; |
854 |
|
855 |
eval qq{ |
856 |
sub $AUTOLOAD { |
857 |
my \$proxy = shift; |
858 |
\$proxy->{term}->$1 (\@_) |
859 |
} |
860 |
1 |
861 |
} or die "FATAL: unable to compile method forwarder: $@"; |
862 |
|
863 |
goto &$AUTOLOAD; |
864 |
} |
865 |
|
866 |
sub DESTROY { |
867 |
# nop |
868 |
} |
869 |
|
870 |
# urxvt::destroy_hook |
871 |
|
872 |
sub urxvt::destroy_hook::DESTROY { |
873 |
${$_[0]}->(); |
874 |
} |
875 |
|
876 |
sub urxvt::destroy_hook(&) { |
877 |
bless \shift, urxvt::destroy_hook:: |
878 |
} |
879 |
|
880 |
package urxvt::anyevent; |
881 |
|
882 |
=head2 The C<urxvt::anyevent> Class |
883 |
|
884 |
The sole purpose of this class is to deliver an interface to the |
885 |
C<AnyEvent> module - any module using it will work inside urxvt without |
886 |
further programming. The only exception is that you cannot wait on |
887 |
condition variables, but non-blocking condvar use is ok. What this means |
888 |
is that you cannot use blocking APIs, but the non-blocking variant should |
889 |
work. |
890 |
|
891 |
=cut |
892 |
|
893 |
our $VERSION = 1; |
894 |
|
895 |
$INC{"urxvt/anyevent.pm"} = 1; # mark us as there |
896 |
push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::]; |
897 |
|
898 |
sub timer { |
899 |
my ($class, %arg) = @_; |
900 |
|
901 |
my $cb = $arg{cb}; |
902 |
|
903 |
urxvt::timer |
904 |
->new |
905 |
->start (urxvt::NOW + $arg{after}) |
906 |
->cb (sub { |
907 |
$_[0]->stop; # need to cancel manually |
908 |
$cb->(); |
909 |
}) |
910 |
} |
911 |
|
912 |
sub io { |
913 |
my ($class, %arg) = @_; |
914 |
|
915 |
my $cb = $arg{cb}; |
916 |
|
917 |
bless [$arg{fh}, urxvt::iow |
918 |
->new |
919 |
->fd (fileno $arg{fh}) |
920 |
->events (($arg{poll} =~ /r/ ? 1 : 0) |
921 |
| ($arg{poll} =~ /w/ ? 2 : 0)) |
922 |
->start |
923 |
->cb (sub { |
924 |
$cb->(($_[1] & 1 ? 'r' : '') |
925 |
. ($_[1] & 2 ? 'w' : '')); |
926 |
})], |
927 |
urxvt::anyevent:: |
928 |
} |
929 |
|
930 |
sub DESTROY { |
931 |
$_[0][1]->stop; |
932 |
} |
933 |
|
934 |
sub condvar { |
935 |
bless \my $flag, urxvt::anyevent::condvar:: |
936 |
} |
937 |
|
938 |
sub urxvt::anyevent::condvar::broadcast { |
939 |
${$_[0]}++; |
940 |
} |
941 |
|
942 |
sub urxvt::anyevent::condvar::wait { |
943 |
unless (${$_[0]}) { |
944 |
Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"; |
945 |
} |
946 |
} |
947 |
|
948 |
package urxvt::term; |
949 |
|
950 |
=head2 The C<urxvt::term> Class |
951 |
|
952 |
=over 4 |
953 |
|
954 |
=cut |
955 |
|
956 |
# find on_xxx subs in the package and register them |
957 |
# as hooks |
958 |
sub register_package { |
959 |
my ($self, $pkg, $argv) = @_; |
960 |
|
961 |
no strict 'refs'; |
962 |
|
963 |
urxvt::verbose 6, "register package $pkg to $self"; |
964 |
|
965 |
@{"$pkg\::ISA"} = urxvt::term::extension::; |
966 |
|
967 |
my $proxy = bless { |
968 |
_pkg => $pkg, |
969 |
argv => $argv, |
970 |
}, $pkg; |
971 |
Scalar::Util::weaken ($proxy->{term} = $self); |
972 |
|
973 |
$self->{_pkg}{$pkg} = $proxy; |
974 |
|
975 |
for my $name (@HOOKNAME) { |
976 |
if (my $ref = $pkg->can ("on_" . lc $name)) { |
977 |
$proxy->enable ($name => $ref); |
978 |
} |
979 |
} |
980 |
} |
981 |
|
982 |
=item $term = new urxvt::term $envhashref, $rxvtname, [arg...] |
983 |
|
984 |
Creates a new terminal, very similar as if you had started it with system |
985 |
C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like |
986 |
hash which defines the environment of the new terminal. |
987 |
|
988 |
Croaks (and probably outputs an error message) if the new instance |
989 |
couldn't be created. Returns C<undef> if the new instance didn't |
990 |
initialise perl, and the terminal object otherwise. The C<init> and |
991 |
C<start> hooks will be called during this call. |
992 |
|
993 |
=cut |
994 |
|
995 |
sub new { |
996 |
my ($class, $env, @args) = @_; |
997 |
|
998 |
_new ([ map "$_=$env->{$_}", keys %$env ], @args); |
999 |
} |
1000 |
|
1001 |
=item $term->destroy |
1002 |
|
1003 |
Destroy the terminal object (close the window, free resources |
1004 |
etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event |
1005 |
watchers (timers, io watchers) are still active. |
1006 |
|
1007 |
=item $term->exec_async ($cmd[, @args]) |
1008 |
|
1009 |
Works like the combination of the C<fork>/C<exec> builtins, which executes |
1010 |
("starts") programs in the background. This function takes care of setting |
1011 |
the user environment before exec'ing the command (e.g. C<PATH>) and should |
1012 |
be preferred over explicit calls to C<exec> or C<system>. |
1013 |
|
1014 |
Returns the pid of the subprocess or C<undef> on error. |
1015 |
|
1016 |
=cut |
1017 |
|
1018 |
sub exec_async { |
1019 |
my $self = shift; |
1020 |
|
1021 |
my $pid = fork; |
1022 |
|
1023 |
return $pid |
1024 |
if !defined $pid or $pid; |
1025 |
|
1026 |
%ENV = %{ $self->env }; |
1027 |
|
1028 |
exec @_; |
1029 |
urxvt::_exit 255; |
1030 |
} |
1031 |
|
1032 |
=item $isset = $term->option ($optval[, $set]) |
1033 |
|
1034 |
Returns true if the option specified by C<$optval> is enabled, and |
1035 |
optionally change it. All option values are stored by name in the hash |
1036 |
C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. |
1037 |
|
1038 |
Here is a a likely non-exhaustive list of option names, please see the |
1039 |
source file F</src/optinc.h> to see the actual list: |
1040 |
|
1041 |
borderLess console cursorBlink cursorUnderline hold iconic insecure |
1042 |
intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage |
1043 |
override-redirect pastableTabs pointerBlank reverseVideo scrollBar |
1044 |
scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput |
1045 |
scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs |
1046 |
transparent tripleclickwords utmpInhibit visualBell |
1047 |
|
1048 |
=item $value = $term->resource ($name[, $newval]) |
1049 |
|
1050 |
Returns the current resource value associated with a given name and |
1051 |
optionally sets a new value. Setting values is most useful in the C<init> |
1052 |
hook. Unset resources are returned and accepted as C<undef>. |
1053 |
|
1054 |
The new value must be properly encoded to a suitable character encoding |
1055 |
before passing it to this method. Similarly, the returned value may need |
1056 |
to be converted from the used encoding to text. |
1057 |
|
1058 |
Resource names are as defined in F<src/rsinc.h>. Colours can be specified |
1059 |
as resource names of the form C<< color+<index> >>, e.g. C<color+5>. (will |
1060 |
likely change). |
1061 |
|
1062 |
Please note that resource strings will currently only be freed when the |
1063 |
terminal is destroyed, so changing options frequently will eat memory. |
1064 |
|
1065 |
Here is a a likely non-exhaustive list of resource names, not all of which |
1066 |
are supported in every build, please see the source file F</src/rsinc.h> |
1067 |
to see the actual list: |
1068 |
|
1069 |
answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
1070 |
borderLess color cursorBlink cursorUnderline cutchars delete_key |
1071 |
display_name embed ext_bwidth fade font geometry hold iconName |
1072 |
imFont imLocale inputMethod insecure int_bwidth intensityStyles |
1073 |
italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier |
1074 |
mouseWheelScrollPage name override_redirect pastableTabs path perl_eval |
1075 |
perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay |
1076 |
preeditType print_pipe pty_fd reverseVideo saveLines scrollBar |
1077 |
scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness |
1078 |
scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle |
1079 |
secondaryScreen secondaryScroll selectstyle shade term_name title |
1080 |
transient_for transparent transparent_all tripleclickwords utmpInhibit |
1081 |
visualBell |
1082 |
|
1083 |
=cut |
1084 |
|
1085 |
sub resource($$;$) { |
1086 |
my ($self, $name) = (shift, shift); |
1087 |
unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); |
1088 |
&urxvt::term::_resource |
1089 |
} |
1090 |
|
1091 |
=item $value = $term->x_resource ($pattern) |
1092 |
|
1093 |
Returns the X-Resource for the given pattern, excluding the program or |
1094 |
class name, i.e. C<< $term->x_resource ("boldFont") >> should return the |
1095 |
same value as used by this instance of rxvt-unicode. Returns C<undef> if no |
1096 |
resource with that pattern exists. |
1097 |
|
1098 |
This method should only be called during the C<on_start> hook, as there is |
1099 |
only one resource database per display, and later invocations might return |
1100 |
the wrong resources. |
1101 |
|
1102 |
=item $success = $term->parse_keysym ($keysym_spec, $command_string) |
1103 |
|
1104 |
Adds a keymap translation exactly as specified via a resource. See the |
1105 |
C<keysym> resource in the @@RXVT_NAME@@(1) manpage. |
1106 |
|
1107 |
=item $rend = $term->rstyle ([$new_rstyle]) |
1108 |
|
1109 |
Return and optionally change the current rendition. Text that is output by |
1110 |
the terminal application will use this style. |
1111 |
|
1112 |
=item ($row, $col) = $term->screen_cur ([$row, $col]) |
1113 |
|
1114 |
Return the current coordinates of the text cursor position and optionally |
1115 |
set it (which is usually bad as applications don't expect that). |
1116 |
|
1117 |
=item ($row, $col) = $term->selection_mark ([$row, $col]) |
1118 |
|
1119 |
=item ($row, $col) = $term->selection_beg ([$row, $col]) |
1120 |
|
1121 |
=item ($row, $col) = $term->selection_end ([$row, $col]) |
1122 |
|
1123 |
Return the current values of the selection mark, begin or end positions, |
1124 |
and optionally set them to new values. |
1125 |
|
1126 |
=item $term->selection_make ($eventtime[, $rectangular]) |
1127 |
|
1128 |
Tries to make a selection as set by C<selection_beg> and |
1129 |
C<selection_end>. If C<$rectangular> is true (default: false), a |
1130 |
rectangular selection will be made. This is the prefered function to make |
1131 |
a selection. |
1132 |
|
1133 |
=item $success = $term->selection_grab ($eventtime) |
1134 |
|
1135 |
Try to request the primary selection text from the server (for example, as |
1136 |
set by the next method). No visual feedback will be given. This function |
1137 |
is mostly useful from within C<on_sel_grab> hooks. |
1138 |
|
1139 |
=item $oldtext = $term->selection ([$newtext]) |
1140 |
|
1141 |
Return the current selection text and optionally replace it by C<$newtext>. |
1142 |
|
1143 |
=item $term->overlay_simple ($x, $y, $text) |
1144 |
|
1145 |
Create a simple multi-line overlay box. See the next method for details. |
1146 |
|
1147 |
=cut |
1148 |
|
1149 |
sub overlay_simple { |
1150 |
my ($self, $x, $y, $text) = @_; |
1151 |
|
1152 |
my @lines = split /\n/, $text; |
1153 |
|
1154 |
my $w = List::Util::max map $self->strwidth ($_), @lines; |
1155 |
|
1156 |
my $overlay = $self->overlay ($x, $y, $w, scalar @lines); |
1157 |
$overlay->set (0, $_, $lines[$_]) for 0.. $#lines; |
1158 |
|
1159 |
$overlay |
1160 |
} |
1161 |
|
1162 |
=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) |
1163 |
|
1164 |
Create a new (empty) overlay at the given position with the given |
1165 |
width/height. C<$rstyle> defines the initial rendition style |
1166 |
(default: C<OVERLAY_RSTYLE>). |
1167 |
|
1168 |
If C<$border> is C<2> (default), then a decorative border will be put |
1169 |
around the box. |
1170 |
|
1171 |
If either C<$x> or C<$y> is negative, then this is counted from the |
1172 |
right/bottom side, respectively. |
1173 |
|
1174 |
This method returns an urxvt::overlay object. The overlay will be visible |
1175 |
as long as the perl object is referenced. |
1176 |
|
1177 |
The methods currently supported on C<urxvt::overlay> objects are: |
1178 |
|
1179 |
=over 4 |
1180 |
|
1181 |
=item $overlay->set ($x, $y, $text, $rend) |
1182 |
|
1183 |
Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts |
1184 |
text in rxvt-unicode's special encoding and an array of rendition values |
1185 |
at a specific position inside the overlay. |
1186 |
|
1187 |
=item $overlay->hide |
1188 |
|
1189 |
If visible, hide the overlay, but do not destroy it. |
1190 |
|
1191 |
=item $overlay->show |
1192 |
|
1193 |
If hidden, display the overlay again. |
1194 |
|
1195 |
=back |
1196 |
|
1197 |
=item $popup = $term->popup ($event) |
1198 |
|
1199 |
Creates a new C<urxvt::popup> object that implements a popup menu. The |
1200 |
C<$event> I<must> be the event causing the menu to pop up (a button event, |
1201 |
currently). |
1202 |
|
1203 |
=cut |
1204 |
|
1205 |
sub popup { |
1206 |
my ($self, $event) = @_; |
1207 |
|
1208 |
$self->grab ($event->{time}, 1) |
1209 |
or return; |
1210 |
|
1211 |
my $popup = bless { |
1212 |
term => $self, |
1213 |
event => $event, |
1214 |
}, urxvt::popup::; |
1215 |
|
1216 |
Scalar::Util::weaken $popup->{term}; |
1217 |
|
1218 |
$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy }; |
1219 |
Scalar::Util::weaken $self->{_destroy}{$popup}; |
1220 |
|
1221 |
$popup |
1222 |
} |
1223 |
|
1224 |
=item $cellwidth = $term->strwidth ($string) |
1225 |
|
1226 |
Returns the number of screen-cells this string would need. Correctly |
1227 |
accounts for wide and combining characters. |
1228 |
|
1229 |
=item $octets = $term->locale_encode ($string) |
1230 |
|
1231 |
Convert the given text string into the corresponding locale encoding. |
1232 |
|
1233 |
=item $string = $term->locale_decode ($octets) |
1234 |
|
1235 |
Convert the given locale-encoded octets into a perl string. |
1236 |
|
1237 |
=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) |
1238 |
|
1239 |
XORs the rendition values in the given span with the provided value |
1240 |
(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in |
1241 |
refresh hooks to provide effects similar to the selection. |
1242 |
|
1243 |
=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) |
1244 |
|
1245 |
Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing |
1246 |
whitespace will additionally be xored with the C<$rstyle2>, which defaults |
1247 |
to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines |
1248 |
it instead. Both styles I<MUST NOT> contain font styles. |
1249 |
|
1250 |
=item $term->scr_bell |
1251 |
|
1252 |
Ring the bell! |
1253 |
|
1254 |
=item $term->scr_add_lines ($string) |
1255 |
|
1256 |
Write the given text string to the screen, as if output by the application |
1257 |
running inside the terminal. It may not contain command sequences (escape |
1258 |
codes), but is free to use line feeds, carriage returns and tabs. The |
1259 |
string is a normal text string, not in locale-dependent encoding. |
1260 |
|
1261 |
Normally its not a good idea to use this function, as programs might be |
1262 |
confused by changes in cursor position or scrolling. Its useful inside a |
1263 |
C<on_add_lines> hook, though. |
1264 |
|
1265 |
=item $term->cmd_parse ($octets) |
1266 |
|
1267 |
Similar to C<scr_add_lines>, but the argument must be in the |
1268 |
locale-specific encoding of the terminal and can contain command sequences |
1269 |
(escape codes) that will be interpreted. |
1270 |
|
1271 |
=item $term->tt_write ($octets) |
1272 |
|
1273 |
Write the octets given in C<$data> to the tty (i.e. as program input). To |
1274 |
pass characters instead of octets, you should convert your strings first |
1275 |
to the locale-specific encoding using C<< $term->locale_encode >>. |
1276 |
|
1277 |
=item $old_events = $term->pty_ev_events ([$new_events]) |
1278 |
|
1279 |
Replaces the event mask of the pty watcher by the given event mask. Can |
1280 |
be used to suppress input and output handling to the pty/tty. See the |
1281 |
description of C<< urxvt::timer->events >>. Make sure to always restore |
1282 |
the previous value. |
1283 |
|
1284 |
=item $windowid = $term->parent |
1285 |
|
1286 |
Return the window id of the toplevel window. |
1287 |
|
1288 |
=item $windowid = $term->vt |
1289 |
|
1290 |
Return the window id of the terminal window. |
1291 |
|
1292 |
=item $term->vt_emask_add ($x_event_mask) |
1293 |
|
1294 |
Adds the specified events to the vt event mask. Useful e.g. when you want |
1295 |
to receive pointer events all the times: |
1296 |
|
1297 |
$term->vt_emask_add (urxvt::PointerMotionMask); |
1298 |
|
1299 |
=item $window_width = $term->width |
1300 |
|
1301 |
=item $window_height = $term->height |
1302 |
|
1303 |
=item $font_width = $term->fwidth |
1304 |
|
1305 |
=item $font_height = $term->fheight |
1306 |
|
1307 |
=item $font_ascent = $term->fbase |
1308 |
|
1309 |
=item $terminal_rows = $term->nrow |
1310 |
|
1311 |
=item $terminal_columns = $term->ncol |
1312 |
|
1313 |
=item $has_focus = $term->focus |
1314 |
|
1315 |
=item $is_mapped = $term->mapped |
1316 |
|
1317 |
=item $max_scrollback = $term->saveLines |
1318 |
|
1319 |
=item $nrow_plus_saveLines = $term->total_rows |
1320 |
|
1321 |
=item $topmost_scrollback_row = $term->top_row |
1322 |
|
1323 |
Return various integers describing terminal characteristics. |
1324 |
|
1325 |
=item $x_display = $term->display_id |
1326 |
|
1327 |
Return the DISPLAY used by rxvt-unicode. |
1328 |
|
1329 |
=item $lc_ctype = $term->locale |
1330 |
|
1331 |
Returns the LC_CTYPE category string used by this rxvt-unicode. |
1332 |
|
1333 |
=item $env = $term->env |
1334 |
|
1335 |
Returns a copy of the environment in effect for the terminal as a hashref |
1336 |
similar to C<\%ENV>. |
1337 |
|
1338 |
=cut |
1339 |
|
1340 |
sub env { |
1341 |
if (my $env = $_[0]->_env) { |
1342 |
+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env } |
1343 |
} else { |
1344 |
+{ %ENV } |
1345 |
} |
1346 |
} |
1347 |
|
1348 |
=item $modifiermask = $term->ModLevel3Mask |
1349 |
|
1350 |
=item $modifiermask = $term->ModMetaMask |
1351 |
|
1352 |
=item $modifiermask = $term->ModNumLockMask |
1353 |
|
1354 |
Return the modifier masks corresponding to the "ISO Level 3 Shift" (often |
1355 |
AltGr), the meta key (often Alt) and the num lock key, if applicable. |
1356 |
|
1357 |
=item $view_start = $term->view_start ([$newvalue]) |
1358 |
|
1359 |
Returns the row number of the topmost displayed line. Maximum value is |
1360 |
C<0>, which displays the normal terminal contents. Lower values scroll |
1361 |
this many lines into the scrollback buffer. |
1362 |
|
1363 |
=item $term->want_refresh |
1364 |
|
1365 |
Requests a screen refresh. At the next opportunity, rxvt-unicode will |
1366 |
compare the on-screen display with its stored representation. If they |
1367 |
differ, it redraws the differences. |
1368 |
|
1369 |
Used after changing terminal contents to display them. |
1370 |
|
1371 |
=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) |
1372 |
|
1373 |
Returns the text of the entire row with number C<$row_number>. Row C<0> |
1374 |
is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost |
1375 |
terminal line. The scrollback buffer starts at line C<-1> and extends to |
1376 |
line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line |
1377 |
is requested. |
1378 |
|
1379 |
If C<$new_text> is specified, it will replace characters in the current |
1380 |
line, starting at column C<$start_col> (default C<0>), which is useful |
1381 |
to replace only parts of a line. The font index in the rendition will |
1382 |
automatically be updated. |
1383 |
|
1384 |
C<$text> is in a special encoding: tabs and wide characters that use more |
1385 |
than one cell when displayed are padded with urxvt::NOCHAR characters |
1386 |
(C<chr 65535>). Characters with combining characters and other characters |
1387 |
that do not fit into the normal tetx encoding will be replaced with |
1388 |
characters in the private use area. |
1389 |
|
1390 |
You have to obey this encoding when changing text. The advantage is |
1391 |
that C<substr> and similar functions work on screen cells and not on |
1392 |
characters. |
1393 |
|
1394 |
The methods C<< $term->special_encode >> and C<< $term->special_decode >> |
1395 |
can be used to convert normal strings into this encoding and vice versa. |
1396 |
|
1397 |
=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]]) |
1398 |
|
1399 |
Like C<< $term->ROW_t >>, but returns an arrayref with rendition |
1400 |
bitsets. Rendition bitsets contain information about colour, font, font |
1401 |
styles and similar information. See also C<< $term->ROW_t >>. |
1402 |
|
1403 |
When setting rendition, the font mask will be ignored. |
1404 |
|
1405 |
See the section on RENDITION, above. |
1406 |
|
1407 |
=item $length = $term->ROW_l ($row_number[, $new_length]) |
1408 |
|
1409 |
Returns the number of screen cells that are in use ("the line |
1410 |
length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the |
1411 |
line is joined with the following one. |
1412 |
|
1413 |
=item $bool = $term->is_longer ($row_number) |
1414 |
|
1415 |
Returns true if the row is part of a multiple-row logical "line" (i.e. |
1416 |
joined with the following row), which means all characters are in use |
1417 |
and it is continued on the next row (and possibly a continuation of the |
1418 |
previous row(s)). |
1419 |
|
1420 |
=item $line = $term->line ($row_number) |
1421 |
|
1422 |
Create and return a new C<urxvt::line> object that stores information |
1423 |
about the logical line that row C<$row_number> is part of. It supports the |
1424 |
following methods: |
1425 |
|
1426 |
=over 4 |
1427 |
|
1428 |
=item $text = $line->t ([$new_text]) |
1429 |
|
1430 |
Returns or replaces the full text of the line, similar to C<ROW_t> |
1431 |
|
1432 |
=item $rend = $line->r ([$new_rend]) |
1433 |
|
1434 |
Returns or replaces the full rendition array of the line, similar to C<ROW_r> |
1435 |
|
1436 |
=item $length = $line->l |
1437 |
|
1438 |
Returns the length of the line in cells, similar to C<ROW_l>. |
1439 |
|
1440 |
=item $rownum = $line->beg |
1441 |
|
1442 |
=item $rownum = $line->end |
1443 |
|
1444 |
Return the row number of the first/last row of the line, respectively. |
1445 |
|
1446 |
=item $offset = $line->offset_of ($row, $col) |
1447 |
|
1448 |
Returns the character offset of the given row|col pair within the logical |
1449 |
line. Works for rows outside the line, too, and returns corresponding |
1450 |
offsets outside the string. |
1451 |
|
1452 |
=item ($row, $col) = $line->coord_of ($offset) |
1453 |
|
1454 |
Translates a string offset into terminal coordinates again. |
1455 |
|
1456 |
=back |
1457 |
|
1458 |
=cut |
1459 |
|
1460 |
sub line { |
1461 |
my ($self, $row) = @_; |
1462 |
|
1463 |
my $maxrow = $self->nrow - 1; |
1464 |
|
1465 |
my ($beg, $end) = ($row, $row); |
1466 |
|
1467 |
--$beg while $self->ROW_is_longer ($beg - 1); |
1468 |
++$end while $self->ROW_is_longer ($end) && $end < $maxrow; |
1469 |
|
1470 |
bless { |
1471 |
term => $self, |
1472 |
beg => $beg, |
1473 |
end => $end, |
1474 |
ncol => $self->ncol, |
1475 |
len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), |
1476 |
}, urxvt::line:: |
1477 |
} |
1478 |
|
1479 |
sub urxvt::line::t { |
1480 |
my ($self) = @_; |
1481 |
|
1482 |
if (@_ > 1) |
1483 |
{ |
1484 |
$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) |
1485 |
for $self->{beg} .. $self->{end}; |
1486 |
} |
1487 |
|
1488 |
defined wantarray && |
1489 |
substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), |
1490 |
0, $self->{len} |
1491 |
} |
1492 |
|
1493 |
sub urxvt::line::r { |
1494 |
my ($self) = @_; |
1495 |
|
1496 |
if (@_ > 1) |
1497 |
{ |
1498 |
$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol}) |
1499 |
for $self->{beg} .. $self->{end}; |
1500 |
} |
1501 |
|
1502 |
if (defined wantarray) { |
1503 |
my $rend = [ |
1504 |
map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} |
1505 |
]; |
1506 |
$#$rend = $self->{len} - 1; |
1507 |
return $rend; |
1508 |
} |
1509 |
|
1510 |
() |
1511 |
} |
1512 |
|
1513 |
sub urxvt::line::beg { $_[0]{beg} } |
1514 |
sub urxvt::line::end { $_[0]{end} } |
1515 |
sub urxvt::line::l { $_[0]{len} } |
1516 |
|
1517 |
sub urxvt::line::offset_of { |
1518 |
my ($self, $row, $col) = @_; |
1519 |
|
1520 |
($row - $self->{beg}) * $self->{ncol} + $col |
1521 |
} |
1522 |
|
1523 |
sub urxvt::line::coord_of { |
1524 |
my ($self, $offset) = @_; |
1525 |
|
1526 |
use integer; |
1527 |
|
1528 |
( |
1529 |
$offset / $self->{ncol} + $self->{beg}, |
1530 |
$offset % $self->{ncol} |
1531 |
) |
1532 |
} |
1533 |
|
1534 |
=item $text = $term->special_encode $string |
1535 |
|
1536 |
Converts a perl string into the special encoding used by rxvt-unicode, |
1537 |
where one character corresponds to one screen cell. See |
1538 |
C<< $term->ROW_t >> for details. |
1539 |
|
1540 |
=item $string = $term->special_decode $text |
1541 |
|
1542 |
Converts rxvt-unicodes text reprsentation into a perl string. See |
1543 |
C<< $term->ROW_t >> for details. |
1544 |
|
1545 |
=item $success = $term->grab_button ($button, $modifiermask) |
1546 |
|
1547 |
Registers a synchronous button grab. See the XGrabButton manpage. |
1548 |
|
1549 |
=item $success = $term->grab ($eventtime[, $sync]) |
1550 |
|
1551 |
Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or |
1552 |
synchronous (C<$sync> is true). Also remembers the grab timestampe. |
1553 |
|
1554 |
=item $term->allow_events_async |
1555 |
|
1556 |
Calls XAllowEvents with AsyncBoth for the most recent grab. |
1557 |
|
1558 |
=item $term->allow_events_sync |
1559 |
|
1560 |
Calls XAllowEvents with SyncBoth for the most recent grab. |
1561 |
|
1562 |
=item $term->allow_events_replay |
1563 |
|
1564 |
Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most |
1565 |
recent grab. |
1566 |
|
1567 |
=item $term->ungrab |
1568 |
|
1569 |
Calls XUngrab for the most recent grab. Is called automatically on |
1570 |
evaluation errors, as it is better to lose the grab in the error case as |
1571 |
the session. |
1572 |
|
1573 |
=back |
1574 |
|
1575 |
=cut |
1576 |
|
1577 |
package urxvt::popup; |
1578 |
|
1579 |
=head2 The C<urxvt::popup> Class |
1580 |
|
1581 |
=over 4 |
1582 |
|
1583 |
=cut |
1584 |
|
1585 |
sub add_item { |
1586 |
my ($self, $item) = @_; |
1587 |
|
1588 |
$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal}; |
1589 |
$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover}; |
1590 |
$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active}; |
1591 |
|
1592 |
$item->{render} ||= sub { $_[0]{text} }; |
1593 |
|
1594 |
push @{ $self->{item} }, $item; |
1595 |
} |
1596 |
|
1597 |
=item $popup->add_title ($title) |
1598 |
|
1599 |
Adds a non-clickable title to the popup. |
1600 |
|
1601 |
=cut |
1602 |
|
1603 |
sub add_title { |
1604 |
my ($self, $title) = @_; |
1605 |
|
1606 |
$self->add_item ({ |
1607 |
rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" }, |
1608 |
text => $title, |
1609 |
activate => sub { }, |
1610 |
}); |
1611 |
} |
1612 |
|
1613 |
=item $popup->add_separator ([$sepchr]) |
1614 |
|
1615 |
Creates a separator, optionally using the character given as C<$sepchr>. |
1616 |
|
1617 |
=cut |
1618 |
|
1619 |
sub add_separator { |
1620 |
my ($self, $sep) = @_; |
1621 |
|
1622 |
$sep ||= "="; |
1623 |
|
1624 |
$self->add_item ({ |
1625 |
rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" }, |
1626 |
text => "", |
1627 |
render => sub { $sep x $self->{term}->ncol }, |
1628 |
activate => sub { }, |
1629 |
}); |
1630 |
} |
1631 |
|
1632 |
=item $popup->add_button ($text, $cb) |
1633 |
|
1634 |
Adds a clickable button to the popup. C<$cb> is called whenever it is |
1635 |
selected. |
1636 |
|
1637 |
=cut |
1638 |
|
1639 |
sub add_button { |
1640 |
my ($self, $text, $cb) = @_; |
1641 |
|
1642 |
$self->add_item ({ type => "button", text => $text, activate => $cb}); |
1643 |
} |
1644 |
|
1645 |
=item $popup->add_toggle ($text, $cb, $initial_value) |
1646 |
|
1647 |
Adds a toggle/checkbox item to the popup. Teh callback gets called |
1648 |
whenever it gets toggled, with a boolean indicating its value as its first |
1649 |
argument. |
1650 |
|
1651 |
=cut |
1652 |
|
1653 |
sub add_toggle { |
1654 |
my ($self, $text, $cb, $value) = @_; |
1655 |
|
1656 |
my $item; $item = { |
1657 |
type => "button", |
1658 |
text => " $text", |
1659 |
value => $value, |
1660 |
render => sub { ($_[0]{value} ? "* " : " ") . $text }, |
1661 |
activate => sub { $cb->($_[1]{value} = !$_[1]{value}); }, |
1662 |
}; |
1663 |
|
1664 |
$self->add_item ($item); |
1665 |
} |
1666 |
|
1667 |
=item $popup->show |
1668 |
|
1669 |
Displays the popup (which is initially hidden). |
1670 |
|
1671 |
=cut |
1672 |
|
1673 |
sub show { |
1674 |
my ($self) = @_; |
1675 |
|
1676 |
local $urxvt::popup::self = $self; |
1677 |
|
1678 |
my $env = $self->{term}->env; |
1679 |
# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. |
1680 |
delete $env->{LC_ALL}; |
1681 |
$env->{LC_CTYPE} = $self->{term}->locale; |
1682 |
|
1683 |
urxvt::term->new ($env, "popup", |
1684 |
"--perl-lib" => "", "--perl-ext-common" => "", |
1685 |
"-pty-fd" => -1, "-sl" => 0, |
1686 |
"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect", |
1687 |
"--transient-for" => $self->{term}->parent, |
1688 |
"-display" => $self->{term}->display_id, |
1689 |
"-pe" => "urxvt-popup") |
1690 |
or die "unable to create popup window\n"; |
1691 |
} |
1692 |
|
1693 |
sub DESTROY { |
1694 |
my ($self) = @_; |
1695 |
|
1696 |
delete $self->{term}{_destroy}{$self}; |
1697 |
$self->{term}->ungrab; |
1698 |
} |
1699 |
|
1700 |
=back |
1701 |
|
1702 |
=cut |
1703 |
|
1704 |
package urxvt::watcher; |
1705 |
|
1706 |
@urxvt::timer::ISA = __PACKAGE__; |
1707 |
@urxvt::iow::ISA = __PACKAGE__; |
1708 |
@urxvt::pw::ISA = __PACKAGE__; |
1709 |
@urxvt::iw::ISA = __PACKAGE__; |
1710 |
|
1711 |
=head2 The C<urxvt::timer> Class |
1712 |
|
1713 |
This class implements timer watchers/events. Time is represented as a |
1714 |
fractional number of seconds since the epoch. Example: |
1715 |
|
1716 |
$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); |
1717 |
$term->{timer} = urxvt::timer |
1718 |
->new |
1719 |
->interval (1) |
1720 |
->cb (sub { |
1721 |
$term->{overlay}->set (0, 0, |
1722 |
sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); |
1723 |
}); |
1724 |
|
1725 |
=over 4 |
1726 |
|
1727 |
=item $timer = new urxvt::timer |
1728 |
|
1729 |
Create a new timer object in started state. It is scheduled to fire |
1730 |
immediately. |
1731 |
|
1732 |
=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) |
1733 |
|
1734 |
Set the callback to be called when the timer triggers. |
1735 |
|
1736 |
=item $tstamp = $timer->at |
1737 |
|
1738 |
Return the time this watcher will fire next. |
1739 |
|
1740 |
=item $timer = $timer->set ($tstamp) |
1741 |
|
1742 |
Set the time the event is generated to $tstamp. |
1743 |
|
1744 |
=item $timer = $timer->interval ($interval) |
1745 |
|
1746 |
Normally (and when C<$interval> is C<0>), the timer will automatically |
1747 |
stop after it has fired once. If C<$interval> is non-zero, then the timer |
1748 |
is automatically rescheduled at the given intervals. |
1749 |
|
1750 |
=item $timer = $timer->start |
1751 |
|
1752 |
Start the timer. |
1753 |
|
1754 |
=item $timer = $timer->start ($tstamp) |
1755 |
|
1756 |
Set the event trigger time to C<$tstamp> and start the timer. |
1757 |
|
1758 |
=item $timer = $timer->after ($delay) |
1759 |
|
1760 |
Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>. |
1761 |
|
1762 |
=item $timer = $timer->stop |
1763 |
|
1764 |
Stop the timer. |
1765 |
|
1766 |
=back |
1767 |
|
1768 |
=head2 The C<urxvt::iow> Class |
1769 |
|
1770 |
This class implements io watchers/events. Example: |
1771 |
|
1772 |
$term->{socket} = ... |
1773 |
$term->{iow} = urxvt::iow |
1774 |
->new |
1775 |
->fd (fileno $term->{socket}) |
1776 |
->events (urxvt::EVENT_READ) |
1777 |
->start |
1778 |
->cb (sub { |
1779 |
my ($iow, $revents) = @_; |
1780 |
# $revents must be 1 here, no need to check |
1781 |
sysread $term->{socket}, my $buf, 8192 |
1782 |
or end-of-file; |
1783 |
}); |
1784 |
|
1785 |
|
1786 |
=over 4 |
1787 |
|
1788 |
=item $iow = new urxvt::iow |
1789 |
|
1790 |
Create a new io watcher object in stopped state. |
1791 |
|
1792 |
=item $iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... }) |
1793 |
|
1794 |
Set the callback to be called when io events are triggered. C<$reventmask> |
1795 |
is a bitset as described in the C<events> method. |
1796 |
|
1797 |
=item $iow = $iow->fd ($fd) |
1798 |
|
1799 |
Set the filedescriptor (not handle) to watch. |
1800 |
|
1801 |
=item $iow = $iow->events ($eventmask) |
1802 |
|
1803 |
Set the event mask to watch. The only allowed values are |
1804 |
C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed |
1805 |
together, or C<urxvt::EVENT_NONE>. |
1806 |
|
1807 |
=item $iow = $iow->start |
1808 |
|
1809 |
Start watching for requested events on the given handle. |
1810 |
|
1811 |
=item $iow = $iow->stop |
1812 |
|
1813 |
Stop watching for events on the given filehandle. |
1814 |
|
1815 |
=back |
1816 |
|
1817 |
=head2 The C<urxvt::iw> Class |
1818 |
|
1819 |
This class implements idle watchers, that get called automatically when |
1820 |
the process is idle. They should return as fast as possible, after doing |
1821 |
some useful work. |
1822 |
|
1823 |
=over 4 |
1824 |
|
1825 |
=item $iw = new urxvt::iw |
1826 |
|
1827 |
Create a new idle watcher object in stopped state. |
1828 |
|
1829 |
=item $iw = $iw->cb (sub { my ($iw) = @_; ... }) |
1830 |
|
1831 |
Set the callback to be called when the watcher triggers. |
1832 |
|
1833 |
=item $timer = $timer->start |
1834 |
|
1835 |
Start the watcher. |
1836 |
|
1837 |
=item $timer = $timer->stop |
1838 |
|
1839 |
Stop the watcher. |
1840 |
|
1841 |
=back |
1842 |
|
1843 |
=head2 The C<urxvt::pw> Class |
1844 |
|
1845 |
This class implements process watchers. They create an event whenever a |
1846 |
process exits, after which they stop automatically. |
1847 |
|
1848 |
my $pid = fork; |
1849 |
... |
1850 |
$term->{pw} = urxvt::pw |
1851 |
->new |
1852 |
->start ($pid) |
1853 |
->cb (sub { |
1854 |
my ($pw, $exit_status) = @_; |
1855 |
... |
1856 |
}); |
1857 |
|
1858 |
=over 4 |
1859 |
|
1860 |
=item $pw = new urxvt::pw |
1861 |
|
1862 |
Create a new process watcher in stopped state. |
1863 |
|
1864 |
=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... }) |
1865 |
|
1866 |
Set the callback to be called when the timer triggers. |
1867 |
|
1868 |
=item $pw = $timer->start ($pid) |
1869 |
|
1870 |
Tells the wqtcher to start watching for process C<$pid>. |
1871 |
|
1872 |
=item $pw = $pw->stop |
1873 |
|
1874 |
Stop the watcher. |
1875 |
|
1876 |
=back |
1877 |
|
1878 |
=head1 ENVIRONMENT |
1879 |
|
1880 |
=head2 URXVT_PERL_VERBOSITY |
1881 |
|
1882 |
This variable controls the verbosity level of the perl extension. Higher |
1883 |
numbers indicate more verbose output. |
1884 |
|
1885 |
=over 4 |
1886 |
|
1887 |
=item == 0 - fatal messages |
1888 |
|
1889 |
=item >= 3 - script loading and management |
1890 |
|
1891 |
=item >=10 - all called hooks |
1892 |
|
1893 |
=item >=11 - hook reutrn values |
1894 |
|
1895 |
=back |
1896 |
|
1897 |
=head1 AUTHOR |
1898 |
|
1899 |
Marc Lehmann <pcg@goof.com> |
1900 |
http://software.schmorp.de/pkg/rxvt-unicode |
1901 |
|
1902 |
=cut |
1903 |
|
1904 |
1 |