        <rule pattern = "(proc|struct|map|enum|union)\b">
            <token type = "KeywordDeclaration"/>
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        <rule pattern = "(asm|auto_cast|bit_set|break|case|cast|context|continue|defer|distinct|do|dynamic|else|enum|fallthrough|for|foreign|if|import|in|map|not_in|or_else|or_return|package|proc|return|struct|switch|transmute|typeid|union|using|when|where|panic|real|imag|len|cap|append|copy|delete|new|make|clearpanic|real|imag|len|cap|append|copy|delete|new|make|clear)\b">
            <token type = "Keyword"/>
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        <rule pattern = "(true|false|nil)\b">
            <token type = "KeywordConstant"/>
        </rule>
        <rule pattern = "(uint|u8|u16|u32|u64|int|i8|i16|i32|i64|i16le|i32le|i64le|i128le|u16le|u32le|u64le|u128le|i16be|i32be|i64be|i128be|u16be|u32be|u64be|u128be|f16|f32|f64|complex32|complex64|complex128|quaternion64|quaternion128|quaternion256|byte|rune|string|cstring|typeid|any|bool|b8|b16|b32|b64|uintptr|rawptr)\b">
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            <token type = "NameDecorator"/>
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        <rule pattern = "^\#\+\w+\s*$">
            <token type = "NameAttribute"/>
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        <rule pattern = "^(\#\+\w+)(\s+)(\!)?([A-Za-z0-9-_!]+)(?:(,)(\!)?([A-Za-z0-9-_!]+))*\s*$">
            <bygroups>
                <token type = "NameAttribute"/>
                <token type = "TextWhitespace"/>
                <token type = "Operator"/>
                <token type = "Name"/>
                <token type = "Punctuation"/>
                <token type = "Operator"/>
                <token type = "Name"/>
            </bygroups>
        </rule>
        <rule pattern = "\@(\([a-zA-Z_]+\b\s*.*\)|\(?[a-zA-Z_]+\)?)">
            <token type = "NameAttribute"/>
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        <rule pattern="[a-zA-Z_]\w*">
            <token type="Name"/>
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        <rule pattern="([a-zA-Z_]\w*)(\s*)(\()">
            <token type="NameFunction"/>
        </rule>
        <rule pattern="[^\W\d]\w*">
            <token type="NameOther"/>
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        <rule pattern = "\d+i">
            <token type = "LiteralNumber"/>
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        <rule pattern = "\d+\.\d*([Ee][-+]\d+)?i">
            <token type = "LiteralNumber"/>
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        <rule pattern = "\.\d+([Ee][-+]\d+)?i">
            <token type = "LiteralNumber"/>
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        <rule pattern = "\d+[Ee][-+]\d+i">
            <token type = "LiteralNumber"/>
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        <rule pattern = "\d+(\.\d+[eE][+\-]?\d+|\.\d*|[eE][+\-]?\d+)">
            <token type = "LiteralNumberFloat"/>
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        <rule pattern = "\.\d+([eE][+\-]?\d+)?">
            <token type = "LiteralNumberFloat"/>
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        <rule pattern = "0o[0-7]+">
            <token type = "LiteralNumberOct"/>
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        <rule pattern = "0x[0-9a-fA-F_]+">
            <token type = "LiteralNumberHex"/>
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        <rule pattern = "0b[01_]+">
            <token type = "LiteralNumberBin"/>
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        <rule pattern = "(0|[1-9][0-9_]*)">
            <token type = "LiteralNumberInteger"/>
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        <rule pattern = "'(\\['&quot;\\abfnrtv]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|[^\\])'" >
            <token type = "LiteralStringChar"/>
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        <rule pattern = "(`)([^`]*)(`)" >
            <token type = "LiteralString"/>
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        <rule pattern = "&quot;(\\\\|\\&quot;|[^&quot;])*&quot;" >
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        <rule pattern = "(&lt;&lt;=|&gt;&gt;=|&lt;&lt;|&gt;&gt;|&lt;=|&gt;=|&amp;=|&amp;|\+=|-=|\*=|/=|%=|\||\^|=|&amp;&amp;|\|\||--|-&gt;|=|==|!=|:=|:|::|\.\.\&lt;|\.\.=|[&lt;&gt;+\-*/%&amp;])" >
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        <rule pattern="[{}()\[\],.;]">
            <token type="Punctuation"/>
        </rule>
    </state>  
  </rules>
</lexer>
