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Text file src/github.com/alecthomas/chroma/v2/lexers/embedded/vhdl.xml

Documentation: github.com/alecthomas/chroma/v2/lexers/embedded

     1<lexer>
     2  <config>
     3    <name>VHDL</name>
     4    <alias>vhdl</alias>
     5    <filename>*.vhdl</filename>
     6    <filename>*.vhd</filename>
     7    <mime_type>text/x-vhdl</mime_type>
     8    <case_insensitive>true</case_insensitive>
     9  </config>
    10  <rules>
    11    <state name="root">
    12      <rule pattern="\n">
    13        <token type="Text"/>
    14      </rule>
    15      <rule pattern="\s+">
    16        <token type="Text"/>
    17      </rule>
    18      <rule pattern="\\\n">
    19        <token type="Text"/>
    20      </rule>
    21      <rule pattern="--.*?$">
    22        <token type="CommentSingle"/>
    23      </rule>
    24      <rule pattern="&#39;(U|X|0|1|Z|W|L|H|-)&#39;">
    25        <token type="LiteralStringChar"/>
    26      </rule>
    27      <rule pattern="[~!%^&amp;*+=|?:&lt;&gt;/-]">
    28        <token type="Operator"/>
    29      </rule>
    30      <rule pattern="&#39;[a-z_]\w*">
    31        <token type="NameAttribute"/>
    32      </rule>
    33      <rule pattern="[()\[\],.;\&#39;]">
    34        <token type="Punctuation"/>
    35      </rule>
    36      <rule pattern="&#34;[^\n\\&#34;]*&#34;">
    37        <token type="LiteralString"/>
    38      </rule>
    39      <rule pattern="(library)(\s+)([a-z_]\w*)">
    40        <bygroups>
    41          <token type="Keyword"/>
    42          <token type="Text"/>
    43          <token type="NameNamespace"/>
    44        </bygroups>
    45      </rule>
    46      <rule pattern="(use)(\s+)(entity)">
    47        <bygroups>
    48          <token type="Keyword"/>
    49          <token type="Text"/>
    50          <token type="Keyword"/>
    51        </bygroups>
    52      </rule>
    53      <rule pattern="(use)(\s+)([a-z_][\w.]*\.)(all)">
    54        <bygroups>
    55          <token type="Keyword"/>
    56          <token type="Text"/>
    57          <token type="NameNamespace"/>
    58          <token type="Keyword"/>
    59        </bygroups>
    60      </rule>
    61      <rule pattern="(use)(\s+)([a-z_][\w.]*)">
    62        <bygroups>
    63          <token type="Keyword"/>
    64          <token type="Text"/>
    65          <token type="NameNamespace"/>
    66        </bygroups>
    67      </rule>
    68      <rule pattern="(std|ieee)(\.[a-z_]\w*)">
    69        <bygroups>
    70          <token type="NameNamespace"/>
    71          <token type="NameNamespace"/>
    72        </bygroups>
    73      </rule>
    74      <rule pattern="(ieee|work|std)\b">
    75        <token type="NameNamespace"/>
    76      </rule>
    77      <rule pattern="(entity|component)(\s+)([a-z_]\w*)">
    78        <bygroups>
    79          <token type="Keyword"/>
    80          <token type="Text"/>
    81          <token type="NameClass"/>
    82        </bygroups>
    83      </rule>
    84      <rule pattern="(architecture|configuration)(\s+)([a-z_]\w*)(\s+)(of)(\s+)([a-z_]\w*)(\s+)(is)">
    85        <bygroups>
    86          <token type="Keyword"/>
    87          <token type="Text"/>
    88          <token type="NameClass"/>
    89          <token type="Text"/>
    90          <token type="Keyword"/>
    91          <token type="Text"/>
    92          <token type="NameClass"/>
    93          <token type="Text"/>
    94          <token type="Keyword"/>
    95        </bygroups>
    96      </rule>
    97      <rule pattern="([a-z_]\w*)(:)(\s+)(process|for)">
    98        <bygroups>
    99          <token type="NameClass"/>
   100          <token type="Operator"/>
   101          <token type="Text"/>
   102          <token type="Keyword"/>
   103        </bygroups>
   104      </rule>
   105      <rule pattern="(end)(\s+)">
   106        <bygroups>
   107          <token type="Keyword"/>
   108          <token type="Text"/>
   109        </bygroups>
   110        <push state="endblock"/>
   111      </rule>
   112      <rule>
   113        <include state="types"/>
   114      </rule>
   115      <rule>
   116        <include state="keywords"/>
   117      </rule>
   118      <rule>
   119        <include state="numbers"/>
   120      </rule>
   121      <rule pattern="[a-z_]\w*">
   122        <token type="Name"/>
   123      </rule>
   124    </state>
   125    <state name="endblock">
   126      <rule>
   127        <include state="keywords"/>
   128      </rule>
   129      <rule pattern="[a-z_]\w*">
   130        <token type="NameClass"/>
   131      </rule>
   132      <rule pattern="(\s+)">
   133        <token type="Text"/>
   134      </rule>
   135      <rule pattern=";">
   136        <token type="Punctuation"/>
   137        <pop depth="1"/>
   138      </rule>
   139    </state>
   140    <state name="types">
   141      <rule pattern="(std_ulogic_vector|file_open_status|std_logic_vector|severity_level|file_open_kind|delay_length|std_ulogic|bit_vector|character|std_logic|positive|unsigned|boolean|natural|integer|signed|string|time|bit)\b">
   142        <token type="KeywordType"/>
   143      </rule>
   144    </state>
   145    <state name="keywords">
   146      <rule pattern="(configuration|architecture|disconnect|attribute|transport|postponed|procedure|component|function|variable|severity|constant|generate|register|inertial|package|library|guarded|linkage|generic|subtype|process|literal|record|entity|others|shared|signal|downto|access|assert|return|reject|buffer|impure|select|elsif|inout|until|label|range|group|units|begin|array|alias|after|block|while|null|next|file|when|wait|open|nand|exit|then|case|port|type|loop|else|pure|with|xnor|body|not|rem|bus|rol|ror|xor|abs|end|and|sla|sll|sra|srl|all|out|nor|mod|map|for|new|use|or|on|of|in|if|is|to)\b">
   147        <token type="Keyword"/>
   148      </rule>
   149    </state>
   150    <state name="numbers">
   151      <rule pattern="\d{1,2}#[0-9a-f_]+#?">
   152        <token type="LiteralNumberInteger"/>
   153      </rule>
   154      <rule pattern="\d+">
   155        <token type="LiteralNumberInteger"/>
   156      </rule>
   157      <rule pattern="(\d+\.\d*|\.\d+|\d+)E[+-]?\d+">
   158        <token type="LiteralNumberFloat"/>
   159      </rule>
   160      <rule pattern="X&#34;[0-9a-f_]+&#34;">
   161        <token type="LiteralNumberHex"/>
   162      </rule>
   163      <rule pattern="O&#34;[0-7_]+&#34;">
   164        <token type="LiteralNumberOct"/>
   165      </rule>
   166      <rule pattern="B&#34;[01_]+&#34;">
   167        <token type="LiteralNumberBin"/>
   168      </rule>
   169    </state>
   170  </rules>
   171</lexer>

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