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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE language SYSTEM "language.dtd">
<!-- Kate 2.5 (TDE 3.5) highlighting module for R
	based on an earlier version by E.L. Willighagen. Code folding code by Ben Goodrich
	version 2.0: (c) 2006 Thomas Friedrichsmeier, Arne Henningsen, and the RKWard Team
	license: GPL v2
	R      : http://www.r-project.org/
	RKWard : http://rkward.sourceforge.net/
	-->
<language version="3-1" kateversion="2.3" name="R Script" section="Scripts" extensions="*.R;*.r;*.S;*.s;*.q" mimetype="" license="GPL">
<highlighting>

	<list name="controls">
		<item> for </item>
		<item> in </item>
		<item> next </item>
		<item> break </item>
		<item> while </item>
		<item> repeat </item>
		<item> if </item>
		<item> else </item>
		<item> switch </item>
		<item> function </item>
	</list>
	<list name="words">
		<item> TRUE </item>
		<item> FALSE </item>
		<item> NULL </item>
		<item> NA </item>
		<item> NA_integer_ </item>
		<item> NA_real_ </item>
		<item> NA_complex_ </item>
		<item> NA_character_ </item>
		<item> Inf </item>
		<item> NaN </item>
	</list>

	<contexts>
		<!-- This context is really only good for detecting unexpected closing braces '}'. Since opening braces go to ctx0 (and nesting in there), this context is only active on the base level -->
		<context attribute="Normal Text" lineEndContext="#stay" name="level0">
			<IncludeRules context="CommonRules"/>

			<DetectChar attribute="Error" context="#stay" char="}" />
			<DetectChar attribute="Error" context="#stay" char=")"/>
		</context>

		<context attribute="Normal Text" lineEndContext="#stay" name="ctx0">
			<IncludeRules context="CommonRules"/>

			<DetectChar attribute="Symbol" context="#pop" char="}" endRegion="Brace1" />
			<DetectChar attribute="Error" context="#stay" char=")"/>
		</context>

		<context attribute="In Parenthesis" lineEndContext="#stay" name="parenthesis">
			<LineContinue attribute="Boolean" context="#stay"/>
			<DetectChar attribute="Symbol" context="#pop" char=")"/>

			<RegExpr attribute="Identifier" context="#stay" String="[a-zA-Z_\.][0-9a-zA-Z_\.]*[\s]*=(?=([^=]|$))"/>

			<IncludeRules context="CommonRules"/>
			<DetectChar attribute="Error" context="#stay" char="}" />
		</context>

		<context attribute="String" lineEndContext="#stay" name="string">
			<DetectChar attribute="String" context="#pop" char="&quot;"/>
			<HlCStringChar attribute="String Char" context="#stay"/>
		</context>

		<context attribute="String" lineEndContext="#stay" name="string2">
			<DetectChar attribute="String" context="#pop" char="'"/>
			<HlCStringChar attribute="String Char" context="#stay"/>
		</context>

		<context attribute="Identifier" lineEndContext="#stay" name="backquotedsymbol">
			<DetectChar attribute="String" context="#pop" char="`"/>
			<HlCStringChar attribute="String Char" context="#stay"/>
		</context>

		<context attribute="Normal Text" lineEndContext="#stay" name="operator_rhs" fallthrough="true" fallthroughContext="#pop">
			<!-- While there is nothing of interest, stay in the context -->
			<StringDetect attribute="Headline" context="Headline" String="##"/>
			<DetectChar attribute="Comment" context="Comment" char="#"/>
			<DetectChar attribute="String" context="#stay" char=" "/>
			<!-- Operators other than +, -, and ! directly after another operator are an error. -->
			<RegExpr attribute="Error" context="#stay" String="(\*|/|&lt;|&gt;|\!=|=|\||&amp;|:|\^|@|\$|~)"/>
		</context>

		<context attribute="Headline" lineEndContext="#pop" name="Headline">
			<IncludeRules context="##Alerts" />
		</context>
		<context attribute="Comment" lineEndContext="#pop" name="Comment">
			<IncludeRules context="##Alerts" />
		</context>

		<!-- This context is not really used, but contains the common rules -->
		<context name="CommonRules" lineEndContext="#stay" attribute="Normal Text" >
			<DetectChar attribute="String" context="string" char="&quot;"/>
			<DetectChar attribute="String" context="string2" char="'"/>
			<DetectChar attribute="String" context="backquotedsymbol" char="`"/>
			<keyword attribute="Control Structure" context="#stay" String="controls"/>
			<keyword attribute="Reserved Words" context="#stay" String="words"/>
			<Float attribute="Float" context="#stay"/>
			<Int attribute="Int" context="#stay"/>
			<RegExpr attribute="Keyword" context="#stay" String="[a-zA-Z_]+[a-zA-Z_\.0-9]*(?=[\s]*[(])"/>
			<RegExpr attribute="Keyword" context="#stay" String="\.[a-zA-Z_\.]+[a-zA-Z_\.0-9]*(?=[\s]*[(])"/>
			<RegExpr attribute="Symbol" context="parenthesis" String="\("/>
			<StringDetect attribute="Headline" context="Headline" String="##"/>
			<DetectChar attribute="Comment" context="Comment" char="#"/>

			<!-- For (assignment) operators, enter a new context operator_rhs to check what follows (generally, that should not be another op) -->
			<RegExpr attribute="Assign" context="operator_rhs" String="[&lt;]{1,2}\-"/>
			<RegExpr attribute="Assign" context="operator_rhs" String="\-[&gt;]{1,2}"/>
			<RegExpr attribute="Assign" context="operator_rhs" String="=(?!=)"/>
			<RegExpr attribute="Operator" context="operator_rhs" String="(\+|\-|\*{1,2}|/|&lt;=?|&gt;=?|={1,2}|\!=?|\|{1,2}|&amp;{1,2}|:{1,3}|\^|@|\$|~)"/>
			<RegExpr attribute="Operator" context="operator_rhs" String="%[^%]*%"/>

			<DetectChar attribute="Symbol" context="ctx0" char="{" beginRegion="Brace1" />

			<!-- This is needed only to assist variable based indentation -->
			<DetectChar attribute="Symbol" context="#stay" char="[" />
			<DetectChar attribute="Symbol" context="#stay" char="]" />
		</context>
	</contexts>

	<itemDatas>
	<!-- TDE default colors: http://accessibility.kde.org/oxygen.php?color=white -->
		<itemData name="Normal Text" defStyleNum="dsNormal"/>
		<itemData name="Symbol" defStyleNum="dsNormal"/>
		<itemData name="Keyword" defStyleNum="dsKeyword"/>
		<itemData name="Identifier" defStyleNum="dsDataType"/>
		<itemData name="String" defStyleNum="dsString"/>
		<itemData name="Headline" defStyleNum="dsNormal" color="#b00000" selColor="#b00000" bold="1" italic="0"/> <!-- TDE default color: text 5 -->
		<itemData name="Comment" defStyleNum="dsComment"/>
		<itemData name="Assign" defStyleNum="dsNormal" color="#336366" selColor="#ccc099" bold="1" italic="0"/> <!-- TDE default color: text 7 -->
		<itemData name="Control Structure" defStyleNum="dsNormal" color="#0000bf" selColor="#bfbf00"/> <!-- TDE default color: text 2 -->
		<itemData name="Reserved Words" defStyleNum="dsOthers"/>
		<itemData name="Error" defStyleNum="dsError"/>
		<itemData name="Operator" defStyleNum="dsNormal"  color="#803f00" selColor="#000077" bold="0" italic="0"/> <!-- TDE default color: focussed text -->
		<itemData name="String Char"  defStyleNum="dsChar"/>
		<itemData name="Float" defStyleNum="dsFloat"/>
		<itemData name="Int" defStyleNum="dsDecVal"/>
	</itemDatas>
</highlighting>

<general>
	<comments>
		<comment name="singleLine" start="#" end=""/>
	</comments>
	<keywords casesensitive="true" weakDeliminator="." additionalDeliminator="$"/>
</general>
</language>