1 |
NAME |
2 |
rxvtperl - rxvt-unicode's embedded perl interpreter |
3 |
|
4 |
SYNOPSIS |
5 |
# create a file grab_test in $HOME: |
6 |
|
7 |
sub on_sel_grab { |
8 |
warn "you selected ", $_[0]->selection; |
9 |
() |
10 |
} |
11 |
|
12 |
# start a rxvt using it: |
13 |
|
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rxvt --perl-lib $HOME -pe grab_test |
15 |
|
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DESCRIPTION |
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Everytime a terminal object gets created, extension scripts specified |
18 |
via the "perl" resource are loaded and associated with it. |
19 |
|
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Scripts are compiled in a 'use strict' and 'use utf8' environment, and |
21 |
thus must be encoded as UTF-8. |
22 |
|
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Each script will only ever be loaded once, even in rxvtd, where scripts |
24 |
will be shared (but not enabled) for all terminals. |
25 |
|
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PREPACKAGED EXTENSIONS |
27 |
This section describes the extensions delivered with this release. You |
28 |
can find them in /opt/rxvt/lib/urxvt/perl/. |
29 |
|
30 |
You can activate them like this: |
31 |
|
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rxvt -pe <extensionname> |
33 |
|
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Or by adding them to the resource for extensions loaded by default: |
35 |
|
36 |
URxvt.perl-ext-common: default,automove-background,selection-autotransform |
37 |
|
38 |
selection (enabled by default) |
39 |
(More) intelligent selection. This extension tries to be more |
40 |
intelligent when the user extends selections (double-click and |
41 |
further clicks). Right now, it tries to select words, urls and |
42 |
complete shell-quoted arguments, which is very convenient, too, if |
43 |
your ls supports "--quoting-style=shell". |
44 |
|
45 |
A double-click usually selects the word under the cursor, further |
46 |
clicks will enlarge the selection. |
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|
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The selection works by trying to match a number of regexes and |
49 |
displaying them in increasing order of length. You can add your own |
50 |
regexes by specifying resources of the form: |
51 |
|
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URxvt.selection.pattern-0: perl-regex |
53 |
URxvt.selection.pattern-1: perl-regex |
54 |
... |
55 |
|
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The index number (0, 1...) must not have any holes, and each regex |
57 |
must contain at least one pair of capturing parentheses, which will |
58 |
be used for the match. For example, the followign adds a regex that |
59 |
matches everything between two vertical bars: |
60 |
|
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URxvt.selection.pattern-0: \\|([^|]+)\\| |
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|
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Another example: Programs I use often output "absolute path: " at |
64 |
the beginning of a line when they process multiple files. The |
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following pattern matches the filename (note, there is a single |
66 |
space at the very end): |
67 |
|
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URxvt.selection.pattern-0: ^(/[^:]+):\ |
69 |
|
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You can look at the source of the selection extension to see more |
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interesting uses, such as parsing a line from beginning to end. |
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|
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This extension also offers following bindable keyboard commands: |
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|
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rot13 |
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Rot-13 the selection when activated. Used via keyboard trigger: |
77 |
|
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URxvt.keysym.C-M-r: perl:selection:rot13 |
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|
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option-popup (enabled by default) |
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Binds a popup menu to Ctrl-Button2 that lets you toggle (some) |
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options at runtime. |
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|
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selection-popup (enabled by default) |
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Binds a popup menu to Ctrl-Button3 that lets you convert the |
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selection text into various other formats/action (such as uri |
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unescaping, perl evaluation, web-browser starting etc.), depending |
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on content. |
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|
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Other extensions can extend this popup menu by pushing a code |
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reference onto "@{ $term-"{selection_popup_hook} }>, that is called |
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whenever the popup is displayed. |
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|
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It's sole argument is the popup menu, which can be modified. The |
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selection is in $_, which can be used to decide wether to add |
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something or not. It should either return nothing or a string and a |
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code reference. The string will be used as button text and the code |
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reference will be called when the button gets activated and should |
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transform $_. |
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|
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The following will add an entry "a to b" that transforms all "a"s in |
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the selection to "b"s, but only if the selection currently contains |
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any "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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}; |
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|
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searchable-scrollback<hotkey> (enabled by default) |
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Adds regex search functionality to the scrollback buffer, triggered |
112 |
by a hotkey (default: "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 |
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the screen. |
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|
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Inputting characters appends them to the regex and continues |
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incremental search. "BackSpace" removes a character from the regex, |
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"Up" and "Down" search upwards/downwards in the scrollback buffer, |
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"End" jumps to the bottom. "Escape" leaves search mode and returns |
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to the point where search was started, while "Enter" or "Return" |
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stay at the current position and additionally stores the first match |
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in the current line into the primary selection. |
123 |
|
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readline (enabled by default) |
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A support package that tries to make editing with readline easier. |
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At the moment, it reacts to clicking with the left mouse button by |
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trying to move the text cursor to this position. It does so by |
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generating as many cursor-left or cursor-right keypresses as |
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required (the this only works for programs that correctly support |
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wide characters). |
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|
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To avoid too many false positives, this is only done when: |
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|
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- the tty is in ICANON state. |
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- the text cursor is visible. |
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- the primary screen is currently being displayed. |
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- the mouse is on the same (multi-row-) line as the text cursor. |
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|
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The normal selection mechanism isn't disabled, so quick successive |
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clicks might interfere with selection creation in harmless ways. |
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|
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selection-autotransform |
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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 "s///" |
147 |
operator) that modify $_ as resources: |
148 |
|
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URxvt.selection-autotransform.0: transform |
150 |
URxvt.selection-autotransform.1: transform |
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... |
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|
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For example, the following will transform selections of the form |
154 |
"filename:number", often seen in compiler messages, into "vi |
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+$filename $word": |
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|
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URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ |
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|
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And this example matches the same,but replaces it with vi-commands |
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you can paste directly into your (vi :) editor: |
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|
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URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/ |
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|
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Of course, this can be modified to suit your needs and your editor |
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:) |
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|
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To expand the example above to typical perl error messages ("XXX at |
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FILENAME line YYY."), you need a slightly more elaborate solution: |
169 |
|
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URxvt.selection.pattern-0: ( at .*? line \\d+[,.]) |
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URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/: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 |
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of every error message as a selection pattern, and the second line |
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transforms the message into vi commands to load the file. |
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|
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tabbed |
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This transforms the terminal into a tabbar with additional |
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terminals, that is, it implements what is commonly refered to as |
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"tabbed terminal". The topmost line displays a "[NEW]" button, |
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which, when clicked, will add a new tab, followed by one button per |
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tab. |
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|
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Clicking a button will activate that tab. Pressing Shift-Left and |
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Shift-Right will switch to the tab left or right of the current one, |
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while Shift-Down creates a new tab. |
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|
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The tabbar itself can be configured similarly to a normal terminal, |
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but with a resource class of "URxvt.tabbed". In addition, it |
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supports the following four resources (shown with defaults): |
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|
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URxvt.tabbed.tabbar-fg: <colour-index, default 3> |
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URxvt.tabbed.tabbar-bg: <colour-index, default 0> |
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URxvt.tabbed.tab-fg: <colour-index, default 0> |
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URxvt.tabbed.tab-bg: <colour-index, default 1> |
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|
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See *COLOR AND GRAPHICS* in the rxvt(1) manpage for valid indices. |
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|
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mark-urls |
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Uses per-line display filtering ("on_line_update") to underline urls |
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and make them clickable. When middle-clicked, the program specified |
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in the resource "urlLauncher" (default "x-www-browser") will be |
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started with the URL as first argument. |
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|
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xim-onthespot |
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This (experimental) perl extension implements OnTheSpot editing. It |
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does not work perfectly, and some input methods don't seem to work |
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well with OnTheSpot editing in general, but it seems to work at |
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leats for SCIM and kinput2. |
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|
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You enable it by specifying this extension and a preedit style of |
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"OnTheSpot", i.e.: |
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|
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rxvt -pt OnTheSpot -pe xim-onthespot |
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|
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automove-background |
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This is basically a one-line extension that dynamically changes the |
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background pixmap offset to the window position, in effect creating |
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the same effect as pseudo transparency with a custom pixmap. No |
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scaling is supported in this mode. Exmaple: |
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|
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rxvt -pixmap background.xpm -pe automove-background |
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|
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block-graphics-to-ascii |
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A not very useful example of filtering all text output to the |
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terminal, by replacing all line-drawing characters (U+2500 .. |
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U+259F) by a similar-looking ascii character. |
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|
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digital-clock |
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Displays a digital clock using the built-in overlay. |
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|
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remote-clipboard |
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Somewhat of a misnomer, this extension adds two menu entries to the |
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selection popup that allows one ti run external commands to store |
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the selection somewhere and fetch it again. |
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|
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We use it to implement a "distributed selection mechanism", which |
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just means that one command uploads the file to a remote server, and |
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another reads it. |
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|
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The commands can be set using the "URxvt.remote-selection.store" and |
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"URxvt.remote-selection.fetch" resources. The first should read the |
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selection to store from STDIN (always in UTF-8), the second should |
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provide the selection data on STDOUT (also in UTF-8). |
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|
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The defaults (which are likely useless to you) use rsh and cat: |
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|
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URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection' |
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URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection' |
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|
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selection-pastebin |
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This is a little rarely useful extension that Uploads the selection |
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as textfile to a remote site (or does other things). (The |
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implementation is not currently secure for use in a multiuser |
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environment as it writes to /tmp directly.). |
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|
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It listens to the "selection-pastebin:remote-pastebin" keyboard |
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command, i.e. |
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|
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URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin |
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|
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Pressing this combination runs a command with "%" replaced by the |
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name of 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 |
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around here :) |
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|
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The name of the textfile is the hex encoded md5 sum of the |
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selection, so 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 |
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given in the "selection-pastebin-url" resource (again, the % is the |
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placeholder for the filename): |
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|
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URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% |
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|
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example-refresh-hooks |
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Displays a very simple digital clock in the upper right corner of |
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the window. Illustrates overwriting the refresh callbacks to create |
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your own overlays or changes. |
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|
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API DOCUMENTATION |
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General API Considerations |
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All objects (such as terminals, time watchers etc.) are typical |
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reference-to-hash objects. The hash can be used to store anything you |
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like. All members starting with an underscore (such as "_ptr" or |
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"_hook") are reserved for internal uses and MUST NOT be accessed or |
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modified). |
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|
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When objects are destroyed on the C++ side, the perl object hashes are |
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emptied, so its best to store related objects such as time watchers and |
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the like inside the terminal object so they get destroyed as soon as the |
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terminal is destroyed. |
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|
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Argument names also often indicate the type of a parameter. Here are |
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some hints on what they mean: |
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|
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$text |
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Rxvt-unicodes special way of encoding text, where one "unicode" |
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character always represents one screen cell. See ROW_t for a |
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discussion of this format. |
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|
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$string |
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A perl text string, with an emphasis on *text*. It can store all |
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unicode characters and is to be distinguished with text encoded in a |
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specific encoding (often locale-specific) and binary data. |
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|
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$octets |
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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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|
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Extension Objects |
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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 |
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to hooks. So extensions can use their $self object without having to |
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think about other extensions, with the exception of methods and members |
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that begin with an underscore character "_": these are reserved for |
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internal use. |
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|
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Although it isn't a "urxvt::term" object, you can call all methods of |
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the "urxvt::term" class on this object. |
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|
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It has the following methods and data members: |
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|
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$urxvt_term = $self->{term} |
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Returns the "urxvt::term" object associated with this instance of |
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the extension. This member *must not* be changed in any way. |
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|
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$self->enable ($hook_name => $cb, [$hook_name => $cb..]) |
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Dynamically enable the given hooks (named without the "on_" prefix) |
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for this extension, replacing any previous hook. This is useful when |
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you want to overwrite time-critical hooks only temporarily. |
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|
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$self->disable ($hook_name[, $hook_name..]) |
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Dynamically disable the given hooks. |
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|
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Hooks |
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The following subroutines can be declared in extension files, and will |
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be called whenever the relevant event happens. |
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|
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The first argument passed to them is an extension oject as described in |
344 |
the in the "Extension Objects" section. |
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|
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All of these hooks must return a boolean value. If any of the called |
347 |
hooks returns true, then the event counts as being *consumed*, and the |
348 |
relevant action might not be carried out by the C++ code. |
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|
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*When in doubt, return a false value (preferably "()").* |
351 |
|
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on_init $term |
353 |
Called after a new terminal object has been initialized, but before |
354 |
windows are created or the command gets run. Most methods are unsafe |
355 |
to call or deliver senseless data, as terminal size and other |
356 |
characteristics have not yet been determined. You can safely query |
357 |
and change resources and options, though. For many purposes the |
358 |
"on_start" hook is a better place. |
359 |
|
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on_start $term |
361 |
Called at the very end of initialisation of a new terminal, just |
362 |
before trying to map (display) the toplevel and returning to the |
363 |
mainloop. |
364 |
|
365 |
on_destroy $term |
366 |
Called whenever something tries to destroy terminal, when the |
367 |
terminal is still fully functional (not for long, though). |
368 |
|
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on_reset $term |
370 |
Called after the screen is "reset" for any reason, such as resizing |
371 |
or control sequences. Here is where you can react on changes to |
372 |
size-related variables. |
373 |
|
374 |
on_child_start $term, $pid |
375 |
Called just after the child process has been "fork"ed. |
376 |
|
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on_child_exit $term, $status |
378 |
Called just after the child process has exited. $status is the |
379 |
status from "waitpid". |
380 |
|
381 |
on_sel_make $term, $eventtime |
382 |
Called whenever a selection has been made by the user, but before |
383 |
the selection text is copied, so changes to the beginning, end or |
384 |
type of the selection will be honored. |
385 |
|
386 |
Returning a true value aborts selection making by urxvt, in which |
387 |
case you have to make a selection yourself by calling |
388 |
"$term->selection_grab". |
389 |
|
390 |
on_sel_grab $term, $eventtime |
391 |
Called whenever a selection has been copied, but before the |
392 |
selection is requested from the server. The selection text can be |
393 |
queried and changed by calling "$term->selection". |
394 |
|
395 |
Returning a true value aborts selection grabbing. It will still be |
396 |
hilighted. |
397 |
|
398 |
on_sel_extend $term |
399 |
Called whenever the user tries to extend the selection (e.g. with a |
400 |
double click) and is either supposed to return false (normal |
401 |
operation), or should extend the selection itelf and return true to |
402 |
suppress the built-in processing. This can happen multiple times, as |
403 |
long as the callback returns true, it will be called on every |
404 |
further click by the user and is supposed to enlarge the selection |
405 |
more and more, if possible. |
406 |
|
407 |
See the selection example extension. |
408 |
|
409 |
on_view_change $term, $offset |
410 |
Called whenever the view offset changes, i..e the user or program |
411 |
scrolls. Offset 0 means display the normal terminal, positive values |
412 |
show this many lines of scrollback. |
413 |
|
414 |
on_scroll_back $term, $lines, $saved |
415 |
Called whenever lines scroll out of the terminal area into the |
416 |
scrollback buffer. $lines is the number of lines scrolled out and |
417 |
may be larger than the scroll back buffer or the terminal. |
418 |
|
419 |
It is called before lines are scrolled out (so rows 0 .. min ($lines |
420 |
- 1, $nrow - 1) represent the lines to be scrolled out). $saved is |
421 |
the total number of lines that will be in the scrollback buffer. |
422 |
|
423 |
on_osc_seq $term, $string |
424 |
Called whenever the ESC ] 777 ; string ST command sequence (OSC = |
425 |
operating system command) is processed. Cursor position and other |
426 |
state information is up-to-date when this happens. For |
427 |
interoperability, the string should start with the extension name |
428 |
and a colon, to distinguish it from commands for other extensions, |
429 |
and this might be enforced in the future. |
430 |
|
431 |
Be careful not ever to trust (in a security sense) the data you |
432 |
receive, as its source can not easily be controleld (e-mail content, |
433 |
messages from other users on the same system etc.). |
434 |
|
435 |
on_add_lines $term, $string |
436 |
Called whenever text is about to be output, with the text as |
437 |
argument. You can filter/change and output the text yourself by |
438 |
returning a true value and calling "$term->scr_add_lines" yourself. |
439 |
Please note that this might be very slow, however, as your hook is |
440 |
called for all text being output. |
441 |
|
442 |
on_tt_write $term, $octets |
443 |
Called whenever some data is written to the tty/pty and can be used |
444 |
to suppress or filter tty input. |
445 |
|
446 |
on_line_update $term, $row |
447 |
Called whenever a line was updated or changed. Can be used to filter |
448 |
screen output (e.g. underline urls or other useless stuff). Only |
449 |
lines that are being shown will be filtered, and, due to performance |
450 |
reasons, not always immediately. |
451 |
|
452 |
The row number is always the topmost row of the line if the line |
453 |
spans multiple rows. |
454 |
|
455 |
Please note that, if you change the line, then the hook might get |
456 |
called later with the already-modified line (e.g. if unrelated parts |
457 |
change), so you cannot just toggle rendition bits, but only set |
458 |
them. |
459 |
|
460 |
on_refresh_begin $term |
461 |
Called just before the screen gets redrawn. Can be used for overlay |
462 |
or similar effects by modify terminal contents in refresh_begin, and |
463 |
restoring them in refresh_end. The built-in overlay and selection |
464 |
display code is run after this hook, and takes precedence. |
465 |
|
466 |
on_refresh_end $term |
467 |
Called just after the screen gets redrawn. See "on_refresh_begin". |
468 |
|
469 |
on_user_command $term, $string |
470 |
Called whenever the a user-configured event is being activated (e.g. |
471 |
via a "perl:string" action bound to a key, see description of the |
472 |
keysym resource in the rxvt(1) manpage). |
473 |
|
474 |
The event is simply the action string. This interface is assumed to |
475 |
change slightly in the future. |
476 |
|
477 |
on_x_event $term, $event |
478 |
Called on every X event received on the vt window (and possibly |
479 |
other windows). Should only be used as a last resort. Most event |
480 |
structure members are not passed. |
481 |
|
482 |
on_focus_in $term |
483 |
Called whenever the window gets the keyboard focus, before |
484 |
rxvt-unicode does focus in processing. |
485 |
|
486 |
on_focus_out $term |
487 |
Called wheneever the window loses keyboard focus, before |
488 |
rxvt-unicode does focus out processing. |
489 |
|
490 |
on_configure_notify $term, $event |
491 |
on_property_notify $term, $event |
492 |
on_key_press $term, $event, $keysym, $octets |
493 |
on_key_release $term, $event, $keysym |
494 |
on_button_press $term, $event |
495 |
on_button_release $term, $event |
496 |
on_motion_notify $term, $event |
497 |
on_map_notify $term, $event |
498 |
on_unmap_notify $term, $event |
499 |
Called whenever the corresponding X event is received for the |
500 |
terminal If the hook returns true, then the even will be ignored by |
501 |
rxvt-unicode. |
502 |
|
503 |
The event is a hash with most values as named by Xlib (see the |
504 |
XEvent manpage), with the additional members "row" and "col", which |
505 |
are the (real, not screen-based) row and column under the mouse |
506 |
cursor. |
507 |
|
508 |
"on_key_press" additionally receives the string rxvt-unicode would |
509 |
output, if any, in locale-specific encoding. |
510 |
|
511 |
subwindow. |
512 |
|
513 |
on_client_message $term, $event |
514 |
on_wm_protocols $term, $event |
515 |
on_wm_delete_window $term, $event |
516 |
Called when various types of ClientMessage events are received (all |
517 |
with format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW). |
518 |
|
519 |
Variables in the "urxvt" Package |
520 |
$urxvt::LIBDIR |
521 |
The rxvt-unicode library directory, where, among other things, the |
522 |
perl modules and scripts are stored. |
523 |
|
524 |
$urxvt::RESCLASS, $urxvt::RESCLASS |
525 |
The resource class and name rxvt-unicode uses to look up X |
526 |
resources. |
527 |
|
528 |
$urxvt::RXVTNAME |
529 |
The basename of the installed binaries, usually "urxvt". |
530 |
|
531 |
$urxvt::TERM |
532 |
The current terminal. This variable stores the current "urxvt::term" |
533 |
object, whenever a callback/hook is executing. |
534 |
|
535 |
@urxvt::TERM_INIT |
536 |
All coderefs in this array will be called as methods of the next |
537 |
newly created "urxvt::term" object (during the "on_init" phase). The |
538 |
array gets cleared before the codereferences that were in it are |
539 |
being executed, so coderefs can push themselves onto it again if |
540 |
they so desire. |
541 |
|
542 |
This complements to the perl-eval commandline option, but gets |
543 |
executed first. |
544 |
|
545 |
@urxvt::TERM_EXT |
546 |
Works similar to @TERM_INIT, but contains perl package/class names, |
547 |
which get registered as normal extensions after calling the hooks in |
548 |
@TERM_INIT but before other extensions. Gets cleared just like |
549 |
@TERM_INIT. |
550 |
|
551 |
Functions in the "urxvt" Package |
552 |
urxvt::fatal $errormessage |
553 |
Fatally aborts execution with the given error message. Avoid at all |
554 |
costs! The only time this is acceptable is when the terminal process |
555 |
starts up. |
556 |
|
557 |
urxvt::warn $string |
558 |
Calls "rxvt_warn" with the given string which should not include a |
559 |
newline. The module also overwrites the "warn" builtin with a |
560 |
function that calls this function. |
561 |
|
562 |
Using this function has the advantage that its output ends up in the |
563 |
correct place, e.g. on stderr of the connecting urxvtc client. |
564 |
|
565 |
Messages have a size limit of 1023 bytes currently. |
566 |
|
567 |
@terms = urxvt::termlist |
568 |
Returns all urxvt::term objects that exist in this process, |
569 |
regardless of wether they are started, being destroyed etc., so be |
570 |
careful. Only term objects that have perl extensions attached will |
571 |
be returned (because there is no urxvt::term objet associated with |
572 |
others). |
573 |
|
574 |
$time = urxvt::NOW |
575 |
Returns the "current time" (as per the event loop). |
576 |
|
577 |
urxvt::CurrentTime |
578 |
urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, |
579 |
Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, Button4Mask, |
580 |
Button5Mask, AnyModifier |
581 |
urxvt::NoEventMask, KeyPressMask, KeyReleaseMask, ButtonPressMask, |
582 |
ButtonReleaseMask, EnterWindowMask, LeaveWindowMask, PointerMotionMask, |
583 |
PointerMotionHintMask, Button1MotionMask, Button2MotionMask, |
584 |
Button3MotionMask, Button4MotionMask, Button5MotionMask, |
585 |
ButtonMotionMask, KeymapStateMask, ExposureMask, VisibilityChangeMask, |
586 |
StructureNotifyMask, ResizeRedirectMask, SubstructureNotifyMask, |
587 |
SubstructureRedirectMask, FocusChangeMask, PropertyChangeMask, |
588 |
ColormapChangeMask, OwnerGrabButtonMask |
589 |
urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify, |
590 |
EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose, |
591 |
GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify, |
592 |
UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify, |
593 |
ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify, |
594 |
CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest, |
595 |
SelectionNotify, ColormapNotify, ClientMessage, MappingNotify |
596 |
Various constants for use in X calls and event processing. |
597 |
|
598 |
RENDITION |
599 |
Rendition bitsets contain information about colour, font, font styles |
600 |
and similar information for each screen cell. |
601 |
|
602 |
The following "macros" deal with changes in rendition sets. You should |
603 |
never just create a bitset, you should always modify an existing one, as |
604 |
they contain important information required for correct operation of |
605 |
rxvt-unicode. |
606 |
|
607 |
$rend = urxvt::DEFAULT_RSTYLE |
608 |
Returns the default rendition, as used when the terminal is starting |
609 |
up or being reset. Useful as a base to start when creating |
610 |
renditions. |
611 |
|
612 |
$rend = urxvt::OVERLAY_RSTYLE |
613 |
Return the rendition mask used for overlays by default. |
614 |
|
615 |
$rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline |
616 |
Return the bit that enabled bold, italic, blink, reverse-video and |
617 |
underline, respectively. To enable such a style, just logically OR |
618 |
it into the bitset. |
619 |
|
620 |
$foreground = urxvt::GET_BASEFG $rend |
621 |
$background = urxvt::GET_BASEBG $rend |
622 |
Return the foreground/background colour index, respectively. |
623 |
|
624 |
$rend = urxvt::SET_FGCOLOR $rend, $new_colour |
625 |
$rend = urxvt::SET_BGCOLOR $rend, $new_colour |
626 |
$rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg |
627 |
Replace the foreground/background colour in the rendition mask with |
628 |
the specified one. |
629 |
|
630 |
$value = urxvt::GET_CUSTOM $rend |
631 |
Return the "custom" value: Every rendition has 5 bits for use by |
632 |
extensions. They can be set and changed as you like and are |
633 |
initially zero. |
634 |
|
635 |
$rend = urxvt::SET_CUSTOM $rend, $new_value |
636 |
Change the custom value. |
637 |
|
638 |
The "urxvt::anyevent" Class |
639 |
The sole purpose of this class is to deliver an interface to the |
640 |
"AnyEvent" module - any module using it will work inside urxvt without |
641 |
further programming. The only exception is that you cannot wait on |
642 |
condition variables, but non-blocking condvar use is ok. What this means |
643 |
is that you cannot use blocking APIs, but the non-blocking variant |
644 |
should work. |
645 |
|
646 |
The "urxvt::term" Class |
647 |
$term = new urxvt::term $envhashref, $rxvtname, [arg...] |
648 |
Creates a new terminal, very similar as if you had started it with |
649 |
system "$rxvtname, arg...". $envhashref must be a reference to a |
650 |
%ENV-like hash which defines the environment of the new terminal. |
651 |
|
652 |
Croaks (and probably outputs an error message) if the new instance |
653 |
couldn't be created. Returns "undef" if the new instance didn't |
654 |
initialise perl, and the terminal object otherwise. The "init" and |
655 |
"start" hooks will be called before this call returns, and are free |
656 |
to refer to global data (which is race free). |
657 |
|
658 |
$term->destroy |
659 |
Destroy the terminal object (close the window, free resources etc.). |
660 |
Please note that rxvt will not exit as long as any event watchers |
661 |
(timers, io watchers) are still active. |
662 |
|
663 |
$term->exec_async ($cmd[, @args]) |
664 |
Works like the combination of the "fork"/"exec" builtins, which |
665 |
executes ("starts") programs in the background. This function takes |
666 |
care of setting the user environment before exec'ing the command |
667 |
(e.g. "PATH") and should be preferred over explicit calls to "exec" |
668 |
or "system". |
669 |
|
670 |
Returns the pid of the subprocess or "undef" on error. |
671 |
|
672 |
$isset = $term->option ($optval[, $set]) |
673 |
Returns true if the option specified by $optval is enabled, and |
674 |
optionally change it. All option values are stored by name in the |
675 |
hash %urxvt::OPTION. Options not enabled in this binary are not in |
676 |
the hash. |
677 |
|
678 |
Here is a a likely non-exhaustive list of option names, please see |
679 |
the source file /src/optinc.h to see the actual list: |
680 |
|
681 |
borderLess console cursorBlink cursorUnderline hold iconic insecure |
682 |
intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage |
683 |
override-redirect pastableTabs pointerBlank reverseVideo scrollBar |
684 |
scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput |
685 |
scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs |
686 |
transparent tripleclickwords utmpInhibit visualBell |
687 |
|
688 |
$value = $term->resource ($name[, $newval]) |
689 |
Returns the current resource value associated with a given name and |
690 |
optionally sets a new value. Setting values is most useful in the |
691 |
"init" hook. Unset resources are returned and accepted as "undef". |
692 |
|
693 |
The new value must be properly encoded to a suitable character |
694 |
encoding before passing it to this method. Similarly, the returned |
695 |
value may need to be converted from the used encoding to text. |
696 |
|
697 |
Resource names are as defined in src/rsinc.h. Colours can be |
698 |
specified as resource names of the form "color+<index>", e.g. |
699 |
"color+5". (will likely change). |
700 |
|
701 |
Please note that resource strings will currently only be freed when |
702 |
the terminal is destroyed, so changing options frequently will eat |
703 |
memory. |
704 |
|
705 |
Here is a a likely non-exhaustive list of resource names, not all of |
706 |
which are supported in every build, please see the source file |
707 |
/src/rsinc.h to see the actual list: |
708 |
|
709 |
answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont |
710 |
borderLess color cursorBlink cursorUnderline cutchars delete_key |
711 |
display_name embed ext_bwidth fade font geometry hold iconName |
712 |
imFont imLocale inputMethod insecure int_bwidth intensityStyles |
713 |
italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier |
714 |
mouseWheelScrollPage name override_redirect pastableTabs path perl_eval |
715 |
perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay |
716 |
preeditType print_pipe pty_fd reverseVideo saveLines scrollBar |
717 |
scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness |
718 |
scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle |
719 |
secondaryScreen secondaryScroll selectstyle shade term_name title |
720 |
transient_for transparent transparent_all tripleclickwords utmpInhibit |
721 |
visualBell |
722 |
|
723 |
$value = $term->x_resource ($pattern) |
724 |
Returns the X-Resource for the given pattern, excluding the program |
725 |
or class name, i.e. "$term->x_resource ("boldFont")" should return |
726 |
the same value as used by this instance of rxvt-unicode. Returns |
727 |
"undef" if no resource with that pattern exists. |
728 |
|
729 |
This method should only be called during the "on_start" hook, as |
730 |
there is only one resource database per display, and later |
731 |
invocations might return the wrong resources. |
732 |
|
733 |
$success = $term->parse_keysym ($keysym_spec, $command_string) |
734 |
Adds a keymap translation exactly as specified via a resource. See |
735 |
the "keysym" resource in the rxvt(1) manpage. |
736 |
|
737 |
$rend = $term->rstyle ([$new_rstyle]) |
738 |
Return and optionally change the current rendition. Text that is |
739 |
output by the terminal application will use this style. |
740 |
|
741 |
($row, $col) = $term->screen_cur ([$row, $col]) |
742 |
Return the current coordinates of the text cursor position and |
743 |
optionally set it (which is usually bad as applications don't expect |
744 |
that). |
745 |
|
746 |
($row, $col) = $term->selection_mark ([$row, $col]) |
747 |
($row, $col) = $term->selection_beg ([$row, $col]) |
748 |
($row, $col) = $term->selection_end ([$row, $col]) |
749 |
Return the current values of the selection mark, begin or end |
750 |
positions, and optionally set them to new values. |
751 |
|
752 |
$term->selection_make ($eventtime[, $rectangular]) |
753 |
Tries to make a selection as set by "selection_beg" and |
754 |
"selection_end". If $rectangular is true (default: false), a |
755 |
rectangular selection will be made. This is the prefered function to |
756 |
make a selection. |
757 |
|
758 |
$success = $term->selection_grab ($eventtime) |
759 |
Try to request the primary selection text from the server (for |
760 |
example, as set by the next method). No visual feedback will be |
761 |
given. This function is mostly useful from within "on_sel_grab" |
762 |
hooks. |
763 |
|
764 |
$oldtext = $term->selection ([$newtext]) |
765 |
Return the current selection text and optionally replace it by |
766 |
$newtext. |
767 |
|
768 |
$term->overlay_simple ($x, $y, $text) |
769 |
Create a simple multi-line overlay box. See the next method for |
770 |
details. |
771 |
|
772 |
$term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) |
773 |
Create a new (empty) overlay at the given position with the given |
774 |
width/height. $rstyle defines the initial rendition style (default: |
775 |
"OVERLAY_RSTYLE"). |
776 |
|
777 |
If $border is 2 (default), then a decorative border will be put |
778 |
around the box. |
779 |
|
780 |
If either $x or $y is negative, then this is counted from the |
781 |
right/bottom side, respectively. |
782 |
|
783 |
This method returns an urxvt::overlay object. The overlay will be |
784 |
visible as long as the perl object is referenced. |
785 |
|
786 |
The methods currently supported on "urxvt::overlay" objects are: |
787 |
|
788 |
$overlay->set ($x, $y, $text, $rend) |
789 |
Similar to "$term->ROW_t" and "$term->ROW_r" in that it puts |
790 |
text in rxvt-unicode's special encoding and an array of |
791 |
rendition values at a specific position inside the overlay. |
792 |
|
793 |
$overlay->hide |
794 |
If visible, hide the overlay, but do not destroy it. |
795 |
|
796 |
$overlay->show |
797 |
If hidden, display the overlay again. |
798 |
|
799 |
$popup = $term->popup ($event) |
800 |
Creates a new "urxvt::popup" object that implements a popup menu. |
801 |
The $event *must* be the event causing the menu to pop up (a button |
802 |
event, currently). |
803 |
|
804 |
$cellwidth = $term->strwidth ($string) |
805 |
Returns the number of screen-cells this string would need. Correctly |
806 |
accounts for wide and combining characters. |
807 |
|
808 |
$octets = $term->locale_encode ($string) |
809 |
Convert the given text string into the corresponding locale |
810 |
encoding. |
811 |
|
812 |
$string = $term->locale_decode ($octets) |
813 |
Convert the given locale-encoded octets into a perl string. |
814 |
|
815 |
$term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) |
816 |
XORs the rendition values in the given span with the provided value |
817 |
(default: "RS_RVid"), which *MUST NOT* contain font styles. Useful |
818 |
in refresh hooks to provide effects similar to the selection. |
819 |
|
820 |
$term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, |
821 |
$rstyle2]]) |
822 |
Similar to "scr_xor_span", but xors a rectangle instead. Trailing |
823 |
whitespace will additionally be xored with the $rstyle2, which |
824 |
defaults to "RS_RVid | RS_Uline", which removes reverse video again |
825 |
and underlines it instead. Both styles *MUST NOT* contain font |
826 |
styles. |
827 |
|
828 |
$term->scr_bell |
829 |
Ring the bell! |
830 |
|
831 |
$term->scr_add_lines ($string) |
832 |
Write the given text string to the screen, as if output by the |
833 |
application running inside the terminal. It may not contain command |
834 |
sequences (escape codes), but is free to use line feeds, carriage |
835 |
returns and tabs. The string is a normal text string, not in |
836 |
locale-dependent encoding. |
837 |
|
838 |
Normally its not a good idea to use this function, as programs might |
839 |
be confused by changes in cursor position or scrolling. Its useful |
840 |
inside a "on_add_lines" hook, though. |
841 |
|
842 |
$term->scr_change_screen ($screen) |
843 |
Switch to given screen - 0 primary, 1 secondary. |
844 |
|
845 |
$term->cmd_parse ($octets) |
846 |
Similar to "scr_add_lines", but the argument must be in the |
847 |
locale-specific encoding of the terminal and can contain command |
848 |
sequences (escape codes) that will be interpreted. |
849 |
|
850 |
$term->tt_write ($octets) |
851 |
Write the octets given in $data to the tty (i.e. as program input). |
852 |
To pass characters instead of octets, you should convert your |
853 |
strings first to the locale-specific encoding using |
854 |
"$term->locale_encode". |
855 |
|
856 |
$old_events = $term->pty_ev_events ([$new_events]) |
857 |
Replaces the event mask of the pty watcher by the given event mask. |
858 |
Can be used to suppress input and output handling to the pty/tty. |
859 |
See the description of "urxvt::timer->events". Make sure to always |
860 |
restore the previous value. |
861 |
|
862 |
$fd = $term->pty_fd |
863 |
Returns the master file descriptor for the pty in use, or -1 if no |
864 |
pty is used. |
865 |
|
866 |
$windowid = $term->parent |
867 |
Return the window id of the toplevel window. |
868 |
|
869 |
$windowid = $term->vt |
870 |
Return the window id of the terminal window. |
871 |
|
872 |
$term->vt_emask_add ($x_event_mask) |
873 |
Adds the specified events to the vt event mask. Useful e.g. when you |
874 |
want to receive pointer events all the times: |
875 |
|
876 |
$term->vt_emask_add (urxvt::PointerMotionMask); |
877 |
|
878 |
$term->focus_in |
879 |
$term->focus_out |
880 |
$term->key_press ($state, $keycode[, $time]) |
881 |
$term->key_release ($state, $keycode[, $time]) |
882 |
Deliver various fake events to to terminal. |
883 |
|
884 |
$window_width = $term->width |
885 |
$window_height = $term->height |
886 |
$font_width = $term->fwidth |
887 |
$font_height = $term->fheight |
888 |
$font_ascent = $term->fbase |
889 |
$terminal_rows = $term->nrow |
890 |
$terminal_columns = $term->ncol |
891 |
$has_focus = $term->focus |
892 |
$is_mapped = $term->mapped |
893 |
$max_scrollback = $term->saveLines |
894 |
$nrow_plus_saveLines = $term->total_rows |
895 |
$topmost_scrollback_row = $term->top_row |
896 |
Return various integers describing terminal characteristics. |
897 |
|
898 |
$x_display = $term->display_id |
899 |
Return the DISPLAY used by rxvt-unicode. |
900 |
|
901 |
$lc_ctype = $term->locale |
902 |
Returns the LC_CTYPE category string used by this rxvt-unicode. |
903 |
|
904 |
$env = $term->env |
905 |
Returns a copy of the environment in effect for the terminal as a |
906 |
hashref similar to "\%ENV". |
907 |
|
908 |
$modifiermask = $term->ModLevel3Mask |
909 |
$modifiermask = $term->ModMetaMask |
910 |
$modifiermask = $term->ModNumLockMask |
911 |
Return the modifier masks corresponding to the "ISO Level 3 Shift" |
912 |
(often AltGr), the meta key (often Alt) and the num lock key, if |
913 |
applicable. |
914 |
|
915 |
$screen = $term->current_screen |
916 |
Returns the currently displayed screen (0 primary, 1 secondary). |
917 |
|
918 |
$cursor_is_hidden = $term->hidden_cursor |
919 |
Returns wether the cursor is currently hidden or not. |
920 |
|
921 |
$view_start = $term->view_start ([$newvalue]) |
922 |
Returns the row number of the topmost displayed line. Maximum value |
923 |
is 0, which displays the normal terminal contents. Lower values |
924 |
scroll this many lines into the scrollback buffer. |
925 |
|
926 |
$term->want_refresh |
927 |
Requests a screen refresh. At the next opportunity, rxvt-unicode |
928 |
will compare the on-screen display with its stored representation. |
929 |
If they differ, it redraws the differences. |
930 |
|
931 |
Used after changing terminal contents to display them. |
932 |
|
933 |
$text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) |
934 |
Returns the text of the entire row with number $row_number. Row 0 is |
935 |
the topmost terminal line, row "$term->$ncol-1" is the bottommost |
936 |
terminal line. The scrollback buffer starts at line -1 and extends |
937 |
to line "-$term->nsaved". Nothing will be returned if a nonexistent |
938 |
line is requested. |
939 |
|
940 |
If $new_text is specified, it will replace characters in the current |
941 |
line, starting at column $start_col (default 0), which is useful to |
942 |
replace only parts of a line. The font index in the rendition will |
943 |
automatically be updated. |
944 |
|
945 |
$text is in a special encoding: tabs and wide characters that use |
946 |
more than one cell when displayed are padded with $urxvt::NOCHAR |
947 |
(chr 65535) characters. Characters with combining characters and |
948 |
other characters that do not fit into the normal tetx encoding will |
949 |
be replaced with characters in the private use area. |
950 |
|
951 |
You have to obey this encoding when changing text. The advantage is |
952 |
that "substr" and similar functions work on screen cells and not on |
953 |
characters. |
954 |
|
955 |
The methods "$term->special_encode" and "$term->special_decode" can |
956 |
be used to convert normal strings into this encoding and vice versa. |
957 |
|
958 |
$rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]]) |
959 |
Like "$term->ROW_t", but returns an arrayref with rendition bitsets. |
960 |
Rendition bitsets contain information about colour, font, font |
961 |
styles and similar information. See also "$term->ROW_t". |
962 |
|
963 |
When setting rendition, the font mask will be ignored. |
964 |
|
965 |
See the section on RENDITION, above. |
966 |
|
967 |
$length = $term->ROW_l ($row_number[, $new_length]) |
968 |
Returns the number of screen cells that are in use ("the line |
969 |
length"). Unlike the urxvt core, this returns "$term->ncol" if the |
970 |
line is joined with the following one. |
971 |
|
972 |
$bool = $term->is_longer ($row_number) |
973 |
Returns true if the row is part of a multiple-row logical "line" |
974 |
(i.e. joined with the following row), which means all characters are |
975 |
in use and it is continued on the next row (and possibly a |
976 |
continuation of the previous row(s)). |
977 |
|
978 |
$line = $term->line ($row_number) |
979 |
Create and return a new "urxvt::line" object that stores information |
980 |
about the logical line that row $row_number is part of. It supports |
981 |
the following methods: |
982 |
|
983 |
$text = $line->t ([$new_text]) |
984 |
Returns or replaces the full text of the line, similar to |
985 |
"ROW_t" |
986 |
|
987 |
$rend = $line->r ([$new_rend]) |
988 |
Returns or replaces the full rendition array of the line, |
989 |
similar to "ROW_r" |
990 |
|
991 |
$length = $line->l |
992 |
Returns the length of the line in cells, similar to "ROW_l". |
993 |
|
994 |
$rownum = $line->beg |
995 |
$rownum = $line->end |
996 |
Return the row number of the first/last row of the line, |
997 |
respectively. |
998 |
|
999 |
$offset = $line->offset_of ($row, $col) |
1000 |
Returns the character offset of the given row|col pair within |
1001 |
the logical line. Works for rows outside the line, too, and |
1002 |
returns corresponding offsets outside the string. |
1003 |
|
1004 |
($row, $col) = $line->coord_of ($offset) |
1005 |
Translates a string offset into terminal coordinates again. |
1006 |
|
1007 |
$text = $term->special_encode $string |
1008 |
Converts a perl string into the special encoding used by |
1009 |
rxvt-unicode, where one character corresponds to one screen cell. |
1010 |
See "$term->ROW_t" for details. |
1011 |
|
1012 |
$string = $term->special_decode $text |
1013 |
Converts rxvt-unicodes text reprsentation into a perl string. See |
1014 |
"$term->ROW_t" for details. |
1015 |
|
1016 |
$success = $term->grab_button ($button, $modifiermask[, $window = |
1017 |
$term->vt]) |
1018 |
$term->ungrab_button ($button, $modifiermask[, $window = $term->vt]) |
1019 |
Register/unregister a synchronous button grab. See the XGrabButton |
1020 |
manpage. |
1021 |
|
1022 |
$success = $term->grab ($eventtime[, $sync]) |
1023 |
Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or |
1024 |
synchronous ($sync is true). Also remembers the grab timestampe. |
1025 |
|
1026 |
$term->allow_events_async |
1027 |
Calls XAllowEvents with AsyncBoth for the most recent grab. |
1028 |
|
1029 |
$term->allow_events_sync |
1030 |
Calls XAllowEvents with SyncBoth for the most recent grab. |
1031 |
|
1032 |
$term->allow_events_replay |
1033 |
Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for |
1034 |
the most recent grab. |
1035 |
|
1036 |
$term->ungrab |
1037 |
Calls XUngrab for the most recent grab. Is called automatically on |
1038 |
evaluation errors, as it is better to lose the grab in the error |
1039 |
case as the session. |
1040 |
|
1041 |
$atom = $term->XInternAtom ($atom_name[, $only_if_exists]) |
1042 |
$atom_name = $term->XGetAtomName ($atom) |
1043 |
@atoms = $term->XListProperties ($window) |
1044 |
($type,$format,$octets) = $term->XGetWindowProperty ($window, $property) |
1045 |
$term->XChangeWindowProperty ($window, $property, $type, $format, |
1046 |
$octets) |
1047 |
$term->XDeleteProperty ($window, $property) |
1048 |
$window = $term->DefaultRootWindow |
1049 |
$term->XReparentWindow ($window, $parent, [$x, $y]) |
1050 |
$term->XMapWindow ($window) |
1051 |
$term->XUnmapWindow ($window) |
1052 |
$term->XMoveResizeWindow ($window, $x, $y, $width, $height) |
1053 |
($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, |
1054 |
$y) |
1055 |
$term->XChangeInput ($window, $add_events[, $del_events]) |
1056 |
Various X or X-related functions. The $term object only serves as |
1057 |
the source of the display, otherwise those functions map |
1058 |
more-or-less directory onto the X functions of the same name. |
1059 |
|
1060 |
The "urxvt::popup" Class |
1061 |
$popup->add_title ($title) |
1062 |
Adds a non-clickable title to the popup. |
1063 |
|
1064 |
$popup->add_separator ([$sepchr]) |
1065 |
Creates a separator, optionally using the character given as |
1066 |
$sepchr. |
1067 |
|
1068 |
$popup->add_button ($text, $cb) |
1069 |
Adds a clickable button to the popup. $cb is called whenever it is |
1070 |
selected. |
1071 |
|
1072 |
$popup->add_toggle ($text, $cb, $initial_value) |
1073 |
Adds a toggle/checkbox item to the popup. Teh callback gets called |
1074 |
whenever it gets toggled, with a boolean indicating its value as its |
1075 |
first argument. |
1076 |
|
1077 |
$popup->show |
1078 |
Displays the popup (which is initially hidden). |
1079 |
|
1080 |
The "urxvt::timer" Class |
1081 |
This class implements timer watchers/events. Time is represented as a |
1082 |
fractional number of seconds since the epoch. Example: |
1083 |
|
1084 |
$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0); |
1085 |
$term->{timer} = urxvt::timer |
1086 |
->new |
1087 |
->interval (1) |
1088 |
->cb (sub { |
1089 |
$term->{overlay}->set (0, 0, |
1090 |
sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]); |
1091 |
}); |
1092 |
|
1093 |
$timer = new urxvt::timer |
1094 |
Create a new timer object in started state. It is scheduled to fire |
1095 |
immediately. |
1096 |
|
1097 |
$timer = $timer->cb (sub { my ($timer) = @_; ... }) |
1098 |
Set the callback to be called when the timer triggers. |
1099 |
|
1100 |
$tstamp = $timer->at |
1101 |
Return the time this watcher will fire next. |
1102 |
|
1103 |
$timer = $timer->set ($tstamp) |
1104 |
Set the time the event is generated to $tstamp. |
1105 |
|
1106 |
$timer = $timer->interval ($interval) |
1107 |
Normally (and when $interval is 0), the timer will automatically |
1108 |
stop after it has fired once. If $interval is non-zero, then the |
1109 |
timer is automatically rescheduled at the given intervals. |
1110 |
|
1111 |
$timer = $timer->start |
1112 |
Start the timer. |
1113 |
|
1114 |
$timer = $timer->start ($tstamp) |
1115 |
Set the event trigger time to $tstamp and start the timer. |
1116 |
|
1117 |
$timer = $timer->after ($delay) |
1118 |
Like "start", but sets the expiry timer to c<urxvt::NOW + $delay>. |
1119 |
|
1120 |
$timer = $timer->stop |
1121 |
Stop the timer. |
1122 |
|
1123 |
The "urxvt::iow" Class |
1124 |
This class implements io watchers/events. Example: |
1125 |
|
1126 |
$term->{socket} = ... |
1127 |
$term->{iow} = urxvt::iow |
1128 |
->new |
1129 |
->fd (fileno $term->{socket}) |
1130 |
->events (urxvt::EVENT_READ) |
1131 |
->start |
1132 |
->cb (sub { |
1133 |
my ($iow, $revents) = @_; |
1134 |
# $revents must be 1 here, no need to check |
1135 |
sysread $term->{socket}, my $buf, 8192 |
1136 |
or end-of-file; |
1137 |
}); |
1138 |
|
1139 |
$iow = new urxvt::iow |
1140 |
Create a new io watcher object in stopped state. |
1141 |
|
1142 |
$iow = $iow->cb (sub { my ($iow, $reventmask) = @_; ... }) |
1143 |
Set the callback to be called when io events are triggered. |
1144 |
$reventmask is a bitset as described in the "events" method. |
1145 |
|
1146 |
$iow = $iow->fd ($fd) |
1147 |
Set the filedescriptor (not handle) to watch. |
1148 |
|
1149 |
$iow = $iow->events ($eventmask) |
1150 |
Set the event mask to watch. The only allowed values are |
1151 |
"urxvt::EVENT_READ" and "urxvt::EVENT_WRITE", which might be ORed |
1152 |
together, or "urxvt::EVENT_NONE". |
1153 |
|
1154 |
$iow = $iow->start |
1155 |
Start watching for requested events on the given handle. |
1156 |
|
1157 |
$iow = $iow->stop |
1158 |
Stop watching for events on the given filehandle. |
1159 |
|
1160 |
The "urxvt::iw" Class |
1161 |
This class implements idle watchers, that get called automatically when |
1162 |
the process is idle. They should return as fast as possible, after doing |
1163 |
some useful work. |
1164 |
|
1165 |
$iw = new urxvt::iw |
1166 |
Create a new idle watcher object in stopped state. |
1167 |
|
1168 |
$iw = $iw->cb (sub { my ($iw) = @_; ... }) |
1169 |
Set the callback to be called when the watcher triggers. |
1170 |
|
1171 |
$timer = $timer->start |
1172 |
Start the watcher. |
1173 |
|
1174 |
$timer = $timer->stop |
1175 |
Stop the watcher. |
1176 |
|
1177 |
The "urxvt::pw" Class |
1178 |
This class implements process watchers. They create an event whenever a |
1179 |
process exits, after which they stop automatically. |
1180 |
|
1181 |
my $pid = fork; |
1182 |
... |
1183 |
$term->{pw} = urxvt::pw |
1184 |
->new |
1185 |
->start ($pid) |
1186 |
->cb (sub { |
1187 |
my ($pw, $exit_status) = @_; |
1188 |
... |
1189 |
}); |
1190 |
|
1191 |
$pw = new urxvt::pw |
1192 |
Create a new process watcher in stopped state. |
1193 |
|
1194 |
$pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... }) |
1195 |
Set the callback to be called when the timer triggers. |
1196 |
|
1197 |
$pw = $timer->start ($pid) |
1198 |
Tells the wqtcher to start watching for process $pid. |
1199 |
|
1200 |
$pw = $pw->stop |
1201 |
Stop the watcher. |
1202 |
|
1203 |
ENVIRONMENT |
1204 |
URXVT_PERL_VERBOSITY |
1205 |
This variable controls the verbosity level of the perl extension. Higher |
1206 |
numbers indicate more verbose output. |
1207 |
|
1208 |
== 0 - fatal messages |
1209 |
>= 3 - script loading and management |
1210 |
>=10 - all called hooks |
1211 |
>=11 - hook reutrn values |
1212 |
|
1213 |
AUTHOR |
1214 |
Marc Lehmann <pcg@goof.com> |
1215 |
http://software.schmorp.de/pkg/rxvt-unicode |
1216 |
|