static/highlight/languages/vhdl.js

   1 /*! `vhdl` grammar compiled for Highlight.js 11.11.1 */
   2   (function(){
   3     var hljsGrammar = (function () {
   4   'use strict';
   5
   6   /*
   7   Language: VHDL
   8   Author: Igor Kalnitsky <igor@kalnitsky.org>
   9   Contributors: Daniel C.K. Kho <daniel.kho@tauhop.com>, Guillaume Savaton <guillaume.savaton@eseo.fr>
  10   Description: VHDL is a hardware description language used in electronic design automation to describe digital and mixed-signal systems.
  11   Website: https://en.wikipedia.org/wiki/VHDL
  12   Category: hardware
  13   */
  14
  15   function vhdl(hljs) {
  16     // Regular expression for VHDL numeric literals.
  17
  18     // Decimal literal:
  19     const INTEGER_RE = '\\d(_|\\d)*';
  20     const EXPONENT_RE = '[eE][-+]?' + INTEGER_RE;
  21     const DECIMAL_LITERAL_RE = INTEGER_RE + '(\\.' + INTEGER_RE + ')?' + '(' + EXPONENT_RE + ')?';
  22     // Based literal:
  23     const BASED_INTEGER_RE = '\\w+';
  24     const BASED_LITERAL_RE = INTEGER_RE + '#' + BASED_INTEGER_RE + '(\\.' + BASED_INTEGER_RE + ')?' + '#' + '(' + EXPONENT_RE + ')?';
  25
  26     const NUMBER_RE = '\\b(' + BASED_LITERAL_RE + '|' + DECIMAL_LITERAL_RE + ')';
  27
  28     const KEYWORDS = [
  29       "abs",
  30       "access",
  31       "after",
  32       "alias",
  33       "all",
  34       "and",
  35       "architecture",
  36       "array",
  37       "assert",
  38       "assume",
  39       "assume_guarantee",
  40       "attribute",
  41       "begin",
  42       "block",
  43       "body",
  44       "buffer",
  45       "bus",
  46       "case",
  47       "component",
  48       "configuration",
  49       "constant",
  50       "context",
  51       "cover",
  52       "disconnect",
  53       "downto",
  54       "default",
  55       "else",
  56       "elsif",
  57       "end",
  58       "entity",
  59       "exit",
  60       "fairness",
  61       "file",
  62       "for",
  63       "force",
  64       "function",
  65       "generate",
  66       "generic",
  67       "group",
  68       "guarded",
  69       "if",
  70       "impure",
  71       "in",
  72       "inertial",
  73       "inout",
  74       "is",
  75       "label",
  76       "library",
  77       "linkage",
  78       "literal",
  79       "loop",
  80       "map",
  81       "mod",
  82       "nand",
  83       "new",
  84       "next",
  85       "nor",
  86       "not",
  87       "null",
  88       "of",
  89       "on",
  90       "open",
  91       "or",
  92       "others",
  93       "out",
  94       "package",
  95       "parameter",
  96       "port",
  97       "postponed",
  98       "procedure",
  99       "process",
 100       "property",
 101       "protected",
 102       "pure",
 103       "range",
 104       "record",
 105       "register",
 106       "reject",
 107       "release",
 108       "rem",
 109       "report",
 110       "restrict",
 111       "restrict_guarantee",
 112       "return",
 113       "rol",
 114       "ror",
 115       "select",
 116       "sequence",
 117       "severity",
 118       "shared",
 119       "signal",
 120       "sla",
 121       "sll",
 122       "sra",
 123       "srl",
 124       "strong",
 125       "subtype",
 126       "then",
 127       "to",
 128       "transport",
 129       "type",
 130       "unaffected",
 131       "units",
 132       "until",
 133       "use",
 134       "variable",
 135       "view",
 136       "vmode",
 137       "vprop",
 138       "vunit",
 139       "wait",
 140       "when",
 141       "while",
 142       "with",
 143       "xnor",
 144       "xor"
 145     ];
 146     const BUILT_INS = [
 147       "boolean",
 148       "bit",
 149       "character",
 150       "integer",
 151       "time",
 152       "delay_length",
 153       "natural",
 154       "positive",
 155       "string",
 156       "bit_vector",
 157       "file_open_kind",
 158       "file_open_status",
 159       "std_logic",
 160       "std_logic_vector",
 161       "unsigned",
 162       "signed",
 163       "boolean_vector",
 164       "integer_vector",
 165       "std_ulogic",
 166       "std_ulogic_vector",
 167       "unresolved_unsigned",
 168       "u_unsigned",
 169       "unresolved_signed",
 170       "u_signed",
 171       "real_vector",
 172       "time_vector"
 173     ];
 174     const LITERALS = [
 175       // severity_level
 176       "false",
 177       "true",
 178       "note",
 179       "warning",
 180       "error",
 181       "failure",
 182       // textio
 183       "line",
 184       "text",
 185       "side",
 186       "width"
 187     ];
 188
 189     return {
 190       name: 'VHDL',
 191       case_insensitive: true,
 192       keywords: {
 193         keyword: KEYWORDS,
 194         built_in: BUILT_INS,
 195         literal: LITERALS
 196       },
 197       illegal: /\{/,
 198       contains: [
 199         hljs.C_BLOCK_COMMENT_MODE, // VHDL-2008 block commenting.
 200         hljs.COMMENT('--', '$'),
 201         hljs.QUOTE_STRING_MODE,
 202         {
 203           className: 'number',
 204           begin: NUMBER_RE,
 205           relevance: 0
 206         },
 207         {
 208           className: 'string',
 209           begin: '\'(U|X|0|1|Z|W|L|H|-)\'',
 210           contains: [ hljs.BACKSLASH_ESCAPE ]
 211         },
 212         {
 213           className: 'symbol',
 214           begin: '\'[A-Za-z](_?[A-Za-z0-9])*',
 215           contains: [ hljs.BACKSLASH_ESCAPE ]
 216         }
 217       ]
 218     };
 219   }
 220
 221   return vhdl;
 222
 223 })();
 224
 225     hljs.registerLanguage('vhdl', hljsGrammar);
 226   })();