tartrazine/lexers/r.xml

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2024-08-02 20:03:49 +00:00
<lexer>
<config>
<name>R</name>
<alias>splus</alias>
<alias>s</alias>
<alias>r</alias>
<filename>*.S</filename>
<filename>*.R</filename>
<filename>*.r</filename>
<filename>.Rhistory</filename>
<filename>.Rprofile</filename>
<filename>.Renviron</filename>
<mime_type>text/S-plus</mime_type>
<mime_type>text/S</mime_type>
<mime_type>text/x-r-source</mime_type>
<mime_type>text/x-r</mime_type>
<mime_type>text/x-R</mime_type>
<mime_type>text/x-r-history</mime_type>
<mime_type>text/x-r-profile</mime_type>
<priority>0.1</priority> <!-- higher priority than Rebol -->
</config>
<rules>
<state name="numbers">
<rule pattern="0[xX][a-fA-F0-9]+([pP][0-9]+)?[Li]?">
<token type="LiteralNumberHex"/>
</rule>
<rule pattern="[+-]?([0-9]+(\.[0-9]+)?|\.[0-9]+|\.)([eE][+-]?[0-9]+)?[Li]?">
<token type="LiteralNumber"/>
</rule>
</state>
<state name="operators">
<rule pattern="&lt;&lt;?-|-&gt;&gt;?|-|==|&lt;=|&gt;=|&lt;|&gt;|&amp;&amp;?|!=|\|\|?|\?">
<token type="Operator"/>
</rule>
<rule pattern="\*|\+|\^|/|!|%[^%]*%|=|~|\$|@|:{1,3}">
<token type="Operator"/>
</rule>
</state>
<state name="root">
<rule>
<include state="keywords"/>
</rule>
<rule pattern="((?:`[^`\\]*(?:\\.[^`\\]*)*`)|(?:(?:[a-zA-z]|[_.][^0-9])[\w_.]*))\s*(?=\()">
<token type="NameFunction"/>
</rule>
<rule>
<include state="statements"/>
</rule>
<rule pattern="\{|\}">
<token type="Punctuation"/>
</rule>
<rule pattern=".">
<token type="Text"/>
</rule>
</state>
<state name="valid_name">
<rule pattern="(?:`[^`\\]*(?:\\.[^`\\]*)*`)|(?:(?:[a-zA-z]|[_.][^0-9])[\w_.]*)">
<token type="Name"/>
</rule>
</state>
<state name="keywords">
<rule pattern="(if|else|for|while|repeat|in|next|break|return|switch|function)(?![\w.])">
<token type="KeywordReserved"/>
</rule>
</state>
<state name="builtin_symbols">
<rule pattern="(NULL|NA(_(integer|real|complex|character)_)?|letters|LETTERS|Inf|TRUE|FALSE|NaN|pi|\.\.(\.|[0-9]+))(?![\w.])">
<token type="KeywordConstant"/>
</rule>
<rule pattern="(T|F)\b">
<token type="NameBuiltinPseudo"/>
</rule>
</state>
<state name="string_squote">
<rule pattern="([^\&#39;\\]|\\.)*\&#39;">
<token type="LiteralString"/>
<pop depth="1"/>
</rule>
</state>
<state name="comments">
<rule pattern="#.*$">
<token type="CommentSingle"/>
</rule>
</state>
<state name="punctuation">
<rule pattern="\[{1,2}|\]{1,2}|\(|\)|;|,">
<token type="Punctuation"/>
</rule>
</state>
<state name="statements">
<rule>
<include state="comments"/>
</rule>
<rule pattern="\s+">
<token type="Text"/>
</rule>
<rule pattern="\&#39;">
<token type="LiteralString"/>
<push state="string_squote"/>
</rule>
<rule pattern="\&#34;">
<token type="LiteralString"/>
<push state="string_dquote"/>
</rule>
<rule>
<include state="builtin_symbols"/>
</rule>
<rule>
<include state="valid_name"/>
</rule>
<rule>
<include state="numbers"/>
</rule>
<rule>
<include state="punctuation"/>
</rule>
<rule>
<include state="operators"/>
</rule>
</state>
<state name="string_dquote">
<rule pattern="([^&#34;\\]|\\.)*&#34;">
<token type="LiteralString"/>
<pop depth="1"/>
</rule>
</state>
</rules>
</lexer>