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|
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="chrome://dactyl/content/help.xsl"?>
<!DOCTYPE document SYSTEM "chrome://dactyl/content/dactyl.dtd">
<document
name="map"
title="&dactyl.appName; Key Mappings"
xmlns="&xmlns.dactyl;"
xmlns:html="&xmlns.html;">
<h1 tag="keyboard-shortcuts">Keyboard shortcuts and commands</h1>
<toc start="2"/>
<p>
&dactyl.appName; provides a number of commands to change the
behavior of key presses. This can mean anything from
automatically substituting one key for another or automatically
replacing one typed word for another, to launching a dialog or
running a command.
</p>
<h2 tag="key-mapping mapping map macro">Key mapping</h2>
<p>
Key mappings are the most basic means &dactyl.appName; provides
for altering the actions of key presses. Each key mapping is
associated with a mode, such as <link topic="insert-mode">insert</link>,
<link topic="normal-mode">normal</link>, or
<link topic="command-line-mode">command-line</link>, and only
has effect when that mode is active. Although each mode has a
full suite of internal mappings, they may be easily augmented,
altered, or removed with the <ex>:map</ex> command and its
variants. These commands, in essence, allow the user to quickly
substitute one sequence of key presses for another.
For instance,
</p>
<code><ex>:map <k name="F2"/></ex> <ex>:echo Date()<k name="CR"/></ex></code>
<p>
causes “<ex>:echo Date()<k name="CR"/></ex>” to be typed out
whenever <k name="F2"/> is pressed, thus echoing the full date
to the command-line.
</p>
<p tag=":map-modes">
Standard key mapping commands are provided for the four most
common modes,
</p>
<dl>
<dt>n</dt> <dd>Normal mode: When browsing normally</dd>
<dt>v</dt> <dd>Visual mode: When selecting text with the cursor keys</dd>
<dt>i</dt> <dd>Insert mode: When interacting with text fields on a website</dd>
<dt>c</dt> <dd>Command-line mode: When typing into the &dactyl.appName; command line</dd>
</dl>
<p>
The ordinary <ex>:map</ex> and <ex>:noremap</ex> commands
add mappings for normal and visual mode. In order to map key
bindings in a different mode, any of the mapping commands may be
prefixed with one of the above letters. For instance,
<ex>:imap</ex> creates a new key mapping in insert mode, while
<ex>:cunmap</ex> removes a key mapping from command-line mode.
</p>
<warning>
It is important to note that mappings are <em>not</em>
automatically saved between sessions. In order to preserve them,
they must either be added to your <tt><t>&dactyl.name;rc</t></tt> or
saved via the <ex>:mk&dactyl.name;rc</ex> command.
</warning>
<h3 tag=":map-commands">Map commands</h3>
<item>
<tags>:map</tags>
<spec>:map <a>lhs</a> <a>rhs</a></spec>
<tags>:nm :nmap</tags>
<spec>:nm<oa>ap</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:vm :vmap</tags>
<spec>:vm<oa>ap</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:im :imap</tags>
<spec>:im<oa>ap</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:cm :cmap</tags>
<spec>:cm<oa>ap</oa> <a>lhs</a> <a>rhs</a></spec>
<description>
<p>
Map the <t>key-sequence</t> <a>lhs</a> to <a>rhs</a> for
the applicable mode(s). The keys of <a>rhs</a> respect
user-defined mappings, so the following will result in
an infinite loop,
</p>
<code><ex>:map a b</ex>
<ex>:map b a</ex></code>
<p>
In order to avoid this shortcoming, the
<ex>:noremap</ex> command may be used.
</p>
</description>
</item>
<h3 tag=":map-options">Map options</h3>
<p>
Any of the map commands may be given the following options:
</p>
<dl>
<dt></dt> <dd></dd>
<dt>-builtin</dt> <dd>Execute this mapping as if there were no user-defined mappings (short name <em>-b</em>)</dd>
<dt>-descripion</dt> <dd>A description of this mapping (short name <em>-d</em>)</dd>
<dt>-ex</dt> <dd>Execute <a>rhs</a> as an Ex command rather than keys (short name <em>-e</em>)</dd>
<dt>-javascript</dt> <dd>Execute <a>rhs</a> as JavaScript rather than keys (short names <em>-js</em>, <em>-j</em>)</dd>
<dt>-modes</dt> <dd>Create this mapping in the given modes (short names <em>-mode</em>, <em>-m</em>)</dd>
<dt>-nopersist</dt> <dd>Do not save this mapping to an auto-generated rc file (short name <em>-n</em>)</dd>
<dt>-silent</dt> <dd>Do not echo any generated keys to the command-line (short name <em>-s</em>, also <em><silent></em> for Vim compatibility)</dd>
</dl>
<item>
<tags>:no :noremap</tags>
<spec>:no<oa>remap</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:nn :nnoremap</tags>
<spec>:nn<oa>oremap</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:vn :vnoremap</tags>
<spec>:vn<oa>oremap</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:ino :inoremap</tags>
<spec>:ino<oa>remap</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:cno :cnoremap</tags>
<spec>:cno<oa>remap</oa> <a>lhs</a> <a>rhs</a></spec>
<description>
<p>
Map the <t>key-sequence</t> <a>lhs</a> to <a>rhs</a> for
the applicable mode(s). The keys in <a>rhs</a> do not
respect user-defined key mappings, so the following
effectively reverses the default meanings of the keys
<k>d</k> and <k>D</k>
</p>
<code><ex>:noremap d D</ex>
<ex>:noremap D d</ex></code>
</description>
</item>
<item>
<tags>:unm :unmap</tags>
<spec>:map <a>lhs</a> <a>rhs</a></spec>
<tags>:nun :nunmap</tags>
<spec>:nun<oa>map</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:vun :vunmap</tags>
<spec>:vun<oa>map</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:iu :iunmap</tags>
<spec>:iu<oa>nmap</oa> <a>lhs</a> <a>rhs</a></spec>
<tags>:cu :cunmap</tags>
<spec>:cu<oa>nmap</oa> <a>lhs</a> <a>rhs</a></spec>
<description>
<p>Remove the mapping of <a>lhs</a> for the applicable mode(s).</p>
</description>
</item>
<item>
<tags>:mapc :mapclear</tags>
<spec>:mapc<oa>lear</oa></spec>
<tags>:nmapc :nmapclear</tags>
<spec>:nmapc<oa>lear</oa></spec>
<tags>:vmapc :vmapclear</tags>
<spec>:vmapc<oa>lear</oa></spec>
<tags>:imapc :imapclear</tags>
<spec>:imapc<oa>lear</oa></spec>
<tags>:cmapc :cmapclear</tags>
<spec>:cmapc<oa>lear</oa></spec>
<description>
<p>
Remove all user-defined mappings for the applicable mode(s).
</p>
</description>
</item>
<item>
<spec>:map</spec>
<spec>:nm<oa>ap</oa></spec>
<spec>:vm<oa>ap</oa></spec>
<spec>:im<oa>ap</oa></spec>
<spec>:cm<oa>ap</oa></spec>
<description>
<p>List all mappings for the applicable mode(s).</p>
</description>
</item>
<item>
<tags>:map_l</tags>
<spec>:map <a>lhs</a></spec>
<tags>:nmap_l</tags>
<spec>:nm<oa>ap</oa> <a>lhs</a></spec>
<tags>:vmap_l</tags>
<spec>:vm<oa>ap</oa> <a>lhs</a></spec>
<tags>:imap_l</tags>
<spec>:im<oa>ap</oa> <a>lhs</a></spec>
<tags>:cmap_l</tags>
<spec>:cm<oa>ap</oa> <a>lhs</a></spec>
<description>
<p>List all mappings starting with <a>lhs</a> for the applicable mode(s).</p>
</description>
</item>
<h3 tag=":map-arguments">Special arguments</h3>
<tags>:map-<silent></tags>
<p>
When the first argument to one of the mapping commands is
<k name="silent"/>, the keys in <a>rhs</a> are not shown in the
command line as they are generated. Nor, for that matter, is
anything else until the command has completed.
</p>
<p>
Below is an overview of which modes each map command applies to:
</p>
<!-- TODO: table format -->
<code>
:map :noremap :unmap :mapclear – both Normal and Visual modes
:nmap :nnoremap :nunmap :nmapclear – Normal mode
:vmap :vnoremap :vunmap :vmapclear – Visual mode
:imap :inoremap :iunmap :imapclear – Insert mode
:cmap :cnoremap :cunmap :cmapclear – Command-line mode
</code>
<h3 tag="key-notation key-sequence">Key sequences</h3>
<p>
Most keys in key sequences are represented simply by the
character that you see on the screen when you type them.
However, as a number of these characters have special meanings,
and a number of keys have no visual representation, a special
notation is required.
</p>
<ul>
<li>
The first argument to the <ex>:map</ex> commands must be
<link topic="quoting">quoted</link> if it contains spaces,
quotation marks or back-slashes. A space may additionally be
typed as <k name="Space"/>.
</li>
<li>
As special key names start with the <em><</em> character,
a literal < must be typed as <k name="lt"/>.
</li>
<li>
<k name="Left"/>, <k name="Right"/>, <k name="Up"/>,
and <k name="Down"/> represent the standard arrow keys.
</li>
<li>
<k name="CapsLock"/>, <k name="NumLock"/>, <k name="Ins"/>
<k name="Del"/>, <k name="Tab"/>, <k name="PageUp"/>,
<k name="PageDown"/>, and <k name="Esc"/> work as
expected.
</li>
<li>
<k name="Return"/> or <k name="CR"/> represent the carriage
return key.
</li>
<li><k name="BS"/> represents the backspace key.</li>
<li><k name="F1"/> through <k name="F12"/> work as expected</li>
<li>
<k name="K0"/> through <k name="K9"/> represent keys on the
numeric keypad.
</li>
</ul>
<p>
In order to represent key presses using the Control, Alt, Meta,
or Shift keys, the following prefixes may be used,
</p>
<ol>
<li><k name="C-␣"/>: The control or ctrl key.</li>
<li><k name="A-␣"/>: The alt key.</li>
<li><k name="M-␣"/>: The meta key, windows key, or command key</li>
<li><k name="S-␣"/>: The shift key.</li>
</ol>
<p>
These prefixes can be combined however you see fit, though you
should note that within angle brackets all alphabetic characters
are read as lowercase. Uppercase characters can only be
specified with the <em>S-</em> modifier. The following key
sequences are interpreted as described,
</p>
<dl>
<dt><k>xc</k></dt>
<dd>Type the ‘X’ key followed by the ‘C’ key</dd>
<dt><k name="C-x">c</k></dt>
<dd>
Type the ‘X’ key while holding the ‘Control’ key, followed
by the ‘C’ key.
</dd>
<dt><k name="C-2"/></dt>
<dd>Type the ‘2’ while holding the ‘Control’ key.</dd>
<dt><k name="C-@"/></dt>
<dd>Type the ‘@’ key while holding the ‘Control’ key.</dd>
<dt><k name="S-Space"/></dt>
<dd>Press the space bar while holding the ‘Shift’ key.</dd>
<dt><k name="C-A-j"/></dt>
<dd>Type the ‘J’ key while while holding both the ‘Control’ and ‘Alt’ keys.</dd>
<dt><k name="C-A-J"/></dt>
<dd>Exactly the same as above.</dd>
<dt><k name="C-A-S-j"/></dt>
<dd>Type the ‘J’ key while while holding both the ‘Control’, ‘Alt’, and ‘Shift’ keys.</dd>
</dl>
<h3 tag=":map-special-chars">Special characters</h3>
<item>
<tags><![CDATA[<Nop>]]></tags>
<strut/>
<spec><Nop></spec>
<description>
<p>
Do nothing. This pseudo-key is useful for disabling a
specific builtin mapping. For example,
<ex>:map <k name="C-n"/> <k name="Nop"/></ex> will prevent <k name="C-n"/>
from doing anything.
</p>
</description>
</item>
<item>
<tags><![CDATA[<CR> map_return]]></tags>
<strut/>
<spec><CR></spec>
<description>
<p>
Expand to a line terminator in a key mapping. An Ex command in the <a>rhs</a> of a
mapping requires a line terminator after it so that it is executed when the
mapping is expanded. <k name="CR"/> should be used for this purpose.
</p>
</description>
</item>
<item>
<tags><![CDATA[<Leader> mapleader \]]></tags>
<strut/>
<spec><Leader></spec>
<description>
<p>
Expands to the value of the ‘mapleader’ variable in key mapping. If
‘mapleader’ is unset or empty then ‘\’ is used. For example, by default,
</p>
<code><ex>:map <k name="Leader"/>h</ex> <ex>:echo <str>Hello</str><k name="CR"/></ex></code>
<p>works like</p>
<code><ex>:map \h</ex> <ex>:echo <str>Hello</str><k name="CR"/></ex></code>
<p>but after</p>
<code><ex>:let mapleader = <str>,</str></ex></code>
<p>it works like</p>
<code><ex>:map ,h</ex> <ex>:echo <str>Hello</str><k name="CR"/></ex></code>
</description>
</item>
<h2 tag="abbreviations">Abbreviations</h2>
<p>
In addition to basic mappings, &dactyl.appName; can also
automatically replace whole words after they've been typed.
These shortcuts are known as abbreviations, and are most often
useful for correcting spelling of commonly mistyped words, as
well as shortening the typing of oft-typed but long words or
phrases. There are three basic types of abbreviations, defined
by the types of characters they contain,
</p>
<ul>
<li>‘full-id’ abbreviations consist entirely of keyword characters (e.g., ‘teh’, ‘msoft’).</li>
<li>‘end-id’ abbreviations end in keyword character but otherwise contains all non-keyword characters (e.g., ‘'i’).</li>
<li>‘non-id’ abbreviations end in a non-keyword character but otherwise contains any non-whitespace character (e.g., ‘def'’).</li>
<li>Strings which fit none of the above patterns can not be defined as abbreviations (e.g., ‘a'b’ and ‘a b’).</li>
</ul>
<p>
For the purposes of abbreviations, keyword characters include
all non-whitespace characters except for single or double
quotation marks. Abbreviations are expanded as soon as any
non-keyword character, or the key <k name="C-]" mode="c"/>, is typed.
</p>
<item>
<tags>:ab :abbreviate</tags>
<spec>:ab<oa>breviate</oa> <a>lhs</a> <a>rhs</a></spec>
<spec>:ab<oa>breviate</oa> <a>lhs</a></spec>
<spec>:ab<oa>breviate</oa></spec>
<description>
<p>
Abbreviate <a>lhs</a> to <a>rhs</a>. If only <a>lhs</a>
is given, list all abbreviations that start with
<a>lhs</a>. If no arguments are given, list all
abbreviations.
</p>
<p>
If the <em>-javascript</em> (short names <em>-js</em>,
<em>-j</em>) option is given, <a>lhs</a> is expanded to
the value <em>return</em>ed by the JavaScript code
<a>rhs</a>. The code is evaluated with the variable
<em>editor</em> set to the editable element that the
abbreviation is currently being expanded in. The code
should <em>not</em> make any changes to the contents of
the editor.
</p>
</description>
</item>
<item>
<tags>:ca :cabbrev</tags>
<spec>:ca<oa>bbrev</oa> <a>lhs</a> <a>rhs</a></spec>
<spec>:ca<oa>bbrev</oa> <a>lhs</a></spec>
<spec>:ca<oa>bbrev</oa></spec>
<description>
<p>
Abbreviate a key sequence for Command-line mode. Same as
<ex>:ab<oa>breviate</oa></ex>, but for
<t>command-line</t> mode only.
</p>
</description>
</item>
<item>
<tags>:ia :iabbrev</tags>
<spec>:ia<oa>bbrev</oa> <a>lhs</a> <a>rhs</a></spec>
<spec>:ia<oa>bbrev</oa> <a>lhs</a></spec>
<spec>:ia<oa>bbrev</oa></spec>
<description>
<p>
Abbreviate a key sequence for Insert mode. Same as
<ex>:ab<oa>breviate</oa></ex>, but for insert mode only.
</p>
</description>
</item>
<item>
<tags>:una :unabbreviate</tags>
<spec>:una<oa>bbreviate</oa> <a>lhs</a></spec>
<description>
<p>Remove an abbreviation.</p>
</description>
</item>
<item>
<tags>:cuna :cunabbrev</tags>
<spec>:cuna<oa>bbrev</oa> <a>lhs</a></spec>
<description>
<p>
Remove an abbreviation for Command-line mode. Same as
<ex>:una<oa>bbreviate</oa></ex>, but for
<t>command-line</t> mode only.
</p>
</description>
</item>
<item>
<tags>:iuna :iunabbrev</tags>
<spec>:iuna<oa>bbrev</oa> <a>lhs</a></spec>
<description>
<p>
Remove an abbreviation for Insert mode. Same as
<ex>:una<oa>bbreviate</oa></ex> but for Insert mode
only.
</p>
</description>
</item>
<item>
<tags>:abc :abclear</tags>
<spec>:abc<oa>lear</oa></spec>
<description short="true">
<p>Remove all abbreviations.</p>
</description>
</item>
<item>
<tags>:cabc :cabclear</tags>
<spec>:cabc<oa>lear</oa></spec>
<description short="true">
<p>Remove all abbreviations for command-line mode.</p>
</description>
</item>
<item>
<tags>:iabc :iabclear</tags>
<spec>:iabc<oa>lear</oa></spec>
<description short="true">
<p>Remove all abbreviations for Insert mode.</p>
</description>
</item>
<h2 tag="user-commands">User-defined commands</h2>
<p>
Defining new commands is perhaps the most straightforward way of
repeating commonly used actions. User-defined commands may be
entered from the command-line or scripts exactly like standard
commands, and may similarly accept arguments, options, counts,
and <oa>!</oa>s, as well as provide command-line completion.
These commands may be defined as either ordinary,
macro-interpolated Ex commands, or otherwise as plain
JavaScript statements.
</p>
<item>
<tags>:com :command</tags>
<spec>:com<oa>mand</oa></spec>
<description short="true">
<p>List all user-defined commands.</p>
</description>
</item>
<item>
<spec>:com<oa>mand</oa> <a>cmd</a></spec>
<description>
<p>List all user-defined commands that start with <a>cmd</a>.</p>
</description>
</item>
<item>
<spec>:com<oa>mand</oa><oa>!</oa> <oa><a>attr</a>…</oa> <a>cmd</a> <a>rep</a></spec>
<description>
<p>
Define a new user command. The name of the command is
<a>cmd</a> and its replacement text is <a>rep</a>. If a
command with this name already exists, an error is
reported unless <oa>!</oa> is specified, in which case
the command is redefined. Unlike Vim, the command may
start with a lowercase letter.
</p>
<p>
The new command is usually defined by a string to be
executed as an Ex command. In this case, before
execution, strings of the form
<hl key="HelpKey"><<a>var</a>></hl> are interpolated
as described below, in order to insert arguments,
options, and the like. If the <em>-javascript</em> (short
name <em>-js</em>) flag is present, the command is
executed as JavaScript, and the arguments are present as
variables in its scope instead, and no interpolation is
performed.
</p>
<p>
The command's behavior can be altered by providing
attributes when the command is defined.
</p>
<h3 tag="E175 E176 :command-nargs">Argument handling</h3>
<p>
By default, user commands accept no arguments. This can be changed by specifying
the -nargs attribute.
</p>
<p>The valid values are:</p>
<dl>
<dt>-nargs=0</dt><dd>No arguments are allowed (default)</dd>
<dt>-nargs=1</dt><dd>One argument is allowed</dd>
<dt>-nargs=*</dt><dd>Zero or more arguments are allowed</dd>
<dt>-nargs=?</dt><dd>Zero or one argument is allowed</dd>
<dt>-nargs=+</dt><dd>One or more arguments are allowed</dd>
</dl>
<h3 tag="E180 E181 :command-complete">Argument completion</h3>
<p>
Completion for arguments to user-defined commands is not available by default.
Completion can be enabled by specifying one of the following arguments to the
-complete option when defining the command.
</p>
<dl>
<dt>altstyle</dt> <dd>alternate author style sheets</dd>
<dt>bookmark</dt> <dd>bookmarks</dd>
<dt>buffer</dt> <dd>buffers</dd>
<dt>color</dt> <dd>color schemes</dd>
<dt>command</dt> <dd>Ex commands</dd>
<dt>dialog</dt> <dd>&dactyl.host; dialogs</dd>
<dt>dir</dt> <dd>directories</dd>
<dt>environment</dt> <dd>environment variables</dd>
<dt>event</dt> <dd>autocommand events</dd>
<dt>file</dt> <dd>files</dd>
<dt>help</dt> <dd>help tags</dd>
<dt>highlight</dt> <dd>highlight groups</dd>
<dt>javascript</dt> <dd>JavaScript expressions</dd>
<dt>macro</dt> <dd>named macros</dd>
<dt>mapping</dt> <dd>user mappings</dd>
<dt>menu</dt> <dd>menu items</dd>
<dt>option</dt> <dd>&dactyl.appName; options</dd>
<dt>preference</dt> <dd>&dactyl.host; preferences</dd>
<dt>search</dt> <dd>search engines and keywords</dd>
<dt>shellcmd</dt> <dd>shell commands</dd>
<dt>sidebar</dt> <dd>sidebar panels</dd>
<dt>url</dt> <dd>URLs</dd>
<dt>usercommand</dt> <dd>user commands</dd>
<dt>custom,<a>func</a></dt><dd>custom completion, provided by <a>func</a></dd>
</dl>
<h3 tag="E467 E468 :command-completion-custom">Custom completion</h3>
<p>
Custom completion can be provided by specifying the <str>custom,<a>func</a></str> argument to
-complete. The <a>func</a> is called with two arguments, a completion context, and
an object describing the command's arguments. It should set the context's
<str>completions</str> property, or return an object, with <str>items</str> and <str>start</str>
properties, describing the completions and where the replacement is to start.
</p>
<p>
<em>start</em> is the index into the word being completed at which the returned values
should be applied and <em>completions</em> is a two-dimensional array of the form:
[[arg1, description1], [arg2, description2], …]
</p>
<!-- TODO: add examples -->
<h3 tag="E177 E178 :command-count">Count handling</h3>
<p>
By default, user commands do not accept a count. Use the -count attribute if
you'd like to have a count passed to your user command. This will then be
available for expansion as <count> in the argument.
</p>
<h3 tag=":command-bang">Special cases</h3>
<p>
By default, a user command does not have a special version, i.e. a version
executed with the ! modifier. Providing the -bang attribute will enable this
and <bang> will be available in the argument.
</p>
<h3 tag=":command-description">Command description</h3>
<p>
The command's description text can be set with -description. Otherwise it will
default to "User-defined command".
</p>
<h3 tag=":command-replacement-text">Replacement text</h3>
<p>
The replacement text <a>rep</a> is scanned for escape sequences and these are
replaced with values from the user-entered command line. The resulting string
is then executed as an Ex command.
</p>
<p>The valid escape sequences are:</p>
<dl>
<dt><args></dt> <dd>The command arguments exactly as supplied</dd>
<dt><count></dt><dd>Any supplied count, e.g. 5</dd>
<dt><bang></dt> <dd>! if the command was executed with the ! modifier</dd>
<dt><lt></dt>
<dd>
A literal '<' character to allow for a literal copy of one
of the escape sequences. E.g., <lt>args> will expand to a
literal <args>
</dd>
</dl>
<p>
"q-" can be prefixed to the escape sequence so that the value is quoted, making
it suitable for expression evaluation. Example: <q-args>
</p>
</description>
</item>
<item>
<tags>:comc :comclear</tags>
<spec>:comc<oa>lear</oa></spec>
<description short="true">
<p>Delete all user-defined commands.</p>
</description>
</item>
<item>
<tags>:delc :delcommand</tags>
<spec>:delc<oa>ommand</oa> <a>cmd</a></spec>
<description>
<p>Delete the user-defined command <a>cmd</a>.</p>
</description>
</item>
<h2 tag="command-examples">Examples</h2>
<p>Add a :Google command to search via google:</p>
<code><ex>:command -nargs=* Google open google <args></ex></code>
<!-- TODO: add decent examples -->
</document>
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