EVOLUTION-MANAGER

Edit File: verilog.js

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
"use strict";

CodeMirror.defineMode("verilog", function(config, parserConfig) {

var indentUnit = config.indentUnit,
      statementIndentUnit = parserConfig.statementIndentUnit || indentUnit,
      dontAlignCalls = parserConfig.dontAlignCalls,
      noIndentKeywords = parserConfig.noIndentKeywords || [],
      multiLineStrings = parserConfig.multiLineStrings;

function words(str) {
    var obj = {}, words = str.split(" ");
    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
    return obj;
  }

/**
   * Keywords from IEEE 1800-2012
   */
  var keywords = words(
    "accept_on alias always always_comb always_ff always_latch and assert assign assume automatic before begin bind " +
    "bins binsof bit break buf bufif0 bufif1 byte case casex casez cell chandle checker class clocking cmos config " +
    "const constraint context continue cover covergroup coverpoint cross deassign default defparam design disable " +
    "dist do edge else end endcase endchecker endclass endclocking endconfig endfunction endgenerate endgroup " +
    "endinterface endmodule endpackage endprimitive endprogram endproperty endspecify endsequence endtable endtask " +
    "enum event eventually expect export extends extern final first_match for force foreach forever fork forkjoin " +
    "function generate genvar global highz0 highz1 if iff ifnone ignore_bins illegal_bins implements implies import " +
    "incdir include initial inout input inside instance int integer interconnect interface intersect join join_any " +
    "join_none large let liblist library local localparam logic longint macromodule matches medium modport module " +
    "nand negedge nettype new nexttime nmos nor noshowcancelled not notif0 notif1 null or output package packed " +
    "parameter pmos posedge primitive priority program property protected pull0 pull1 pulldown pullup " +
    "pulsestyle_ondetect pulsestyle_onevent pure rand randc randcase randsequence rcmos real realtime ref reg " +
    "reject_on release repeat restrict return rnmos rpmos rtran rtranif0 rtranif1 s_always s_eventually s_nexttime " +
    "s_until s_until_with scalared sequence shortint shortreal showcancelled signed small soft solve specify " +
    "specparam static string strong strong0 strong1 struct super supply0 supply1 sync_accept_on sync_reject_on " +
    "table tagged task this throughout time timeprecision timeunit tran tranif0 tranif1 tri tri0 tri1 triand trior " +
    "trireg type typedef union unique unique0 unsigned until until_with untyped use uwire var vectored virtual void " +
    "wait wait_order wand weak weak0 weak1 while wildcard wire with within wor xnor xor");

/** Operators from IEEE 1800-2012
     unary_operator ::=
       + | - | ! | ~ | & | ~& | | | ~| | ^ | ~^ | ^~
     binary_operator ::=
       + | - | * | / | % | == | != | === | !== | ==? | !=? | && | || | **
       | < | <= | > | >= | & | | | ^ | ^~ | ~^ | >> | << | >>> | <<<
       | -> | <->
     inc_or_dec_operator ::= ++ | --
     unary_module_path_operator ::=
       ! | ~ | & | ~& | | | ~| | ^ | ~^ | ^~
     binary_module_path_operator ::=
       == | != | && | || | & | | | ^ | ^~ | ~^
  */
  var isOperatorChar = /[\+\-\*\/!~&|^%=?:]/;
  var isBracketChar = /[\[\]{}()]/;

var unsignedNumber = /\d[0-9_]*/;
  var decimalLiteral = /\d*\s*'s?d\s*\d[0-9_]*/i;
  var binaryLiteral = /\d*\s*'s?b\s*[xz01][xz01_]*/i;
  var octLiteral = /\d*\s*'s?o\s*[xz0-7][xz0-7_]*/i;
  var hexLiteral = /\d*\s*'s?h\s*[0-9a-fxz?][0-9a-fxz?_]*/i;
  var realLiteral = /(\d[\d_]*(\.\d[\d_]*)?E-?[\d_]+)|(\d[\d_]*\.\d[\d_]*)/i;

var closingBracketOrWord = /^((\w+)|[)}\]])/;
  var closingBracket = /[)}\]]/;

var curPunc;
  var curKeyword;

// Block openings which are closed by a matching keyword in the form of ("end" + keyword)
  // E.g. "task" => "endtask"
  var blockKeywords = words(
    "case checker class clocking config function generate interface module package" +
    "primitive program property specify sequence table task"
  );

// Opening/closing pairs
  var openClose = {};
  for (var keyword in blockKeywords) {
    openClose[keyword] = "end" + keyword;
  }
  openClose["begin"] = "end";
  openClose["casex"] = "endcase";
  openClose["casez"] = "endcase";
  openClose["do"   ] = "while";
  openClose["fork" ] = "join;join_any;join_none";
  openClose["covergroup"] = "endgroup";

for (var i in noIndentKeywords) {
    var keyword = noIndentKeywords[i];
    if (openClose[keyword]) {
      openClose[keyword] = undefined;
    }
  }

// Keywords which open statements that are ended with a semi-colon
  var statementKeywords = words("always always_comb always_ff always_latch assert assign assume else export for foreach forever if import initial repeat while");

// Numeric literals
    if (stream.match(realLiteral) ||
        stream.match(decimalLiteral) ||
        stream.match(binaryLiteral) ||
        stream.match(octLiteral) ||
        stream.match(hexLiteral) ||
        stream.match(unsignedNumber) ||
        stream.match(realLiteral)) {
      return "number";
    }

// Operators
    if (stream.eatWhile(isOperatorChar)) {
      return "meta";
    }

// Keywords / plain variables
    if (stream.eatWhile(/[\w\$_]/)) {
      var cur = stream.current();
      if (keywords[cur]) {
        if (openClose[cur]) {
          curPunc = "newblock";
        }
        if (statementKeywords[cur]) {
          curPunc = "newstatement";
        }
        curKeyword = cur;
        return "keyword";
      }
      return "variable";
    }

stream.next();
    return null;
  }

// Interface
  return {

// Regex to force current line to reindent
    electricInput: buildElectricInputRegEx(),

startState: function(basecolumn) {
      return {
        tokenize: null,
        context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
        indented: 0,
        startOfLine: true
      };
    },

token: function(stream, state) {
      var ctx = state.context;
      if (stream.sol()) {
        if (ctx.align == null) ctx.align = false;
        state.indented = stream.indentation();
        state.startOfLine = true;
      }
      if (stream.eatSpace()) return null;
      curPunc = null;
      curKeyword = null;
      var style = (state.tokenize || tokenBase)(stream, state);
      if (style == "comment" || style == "meta" || style == "variable") return style;
      if (ctx.align == null) ctx.align = true;

if (curPunc == ctx.type) {
        popContext(state);
      }
      else if ((curPunc == ";" && ctx.type == "statement") ||
               (ctx.type && isClosing(curKeyword, ctx.type))) {
        ctx = popContext(state);
        while (ctx && ctx.type == "statement") ctx = popContext(state);
      }
      else if (curPunc == "{") { pushContext(state, stream.column(), "}"); }
      else if (curPunc == "[") { pushContext(state, stream.column(), "]"); }
      else if (curPunc == "(") { pushContext(state, stream.column(), ")"); }
      else if (ctx && ctx.type == "endcase" && curPunc == ":") { pushContext(state, stream.column(), "statement"); }
      else if (curPunc == "newstatement") {
        pushContext(state, stream.column(), "statement");
      } else if (curPunc == "newblock") {
        if (curKeyword == "function" && ctx && (ctx.type == "statement" || ctx.type == "endgroup")) {
          // The 'function' keyword can appear in some other contexts where it actually does not
          // indicate a function (import/export DPI and covergroup definitions).
          // Do nothing in this case
        } else if (curKeyword == "task" && ctx && ctx.type == "statement") {
          // Same thing for task
        } else {
          var close = openClose[curKeyword];
          pushContext(state, stream.column(), close);
        }
      }

state.startOfLine = false;
      return style;
    },

indent: function(state, textAfter) {
      if (state.tokenize != tokenBase && state.tokenize != null) return CodeMirror.Pass;
      var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
      if (ctx.type == "statement" && firstChar == "}") ctx = ctx.prev;
      var closing = false;
      var possibleClosing = textAfter.match(closingBracketOrWord);
      if (possibleClosing) {
        closing = isClosing(possibleClosing[0], ctx.type);
      }
      if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : statementIndentUnit);
      else if (closingBracket.test(ctx.type) && ctx.align && !dontAlignCalls) return ctx.column + (closing ? 0 : 1);
      else if (ctx.type == ")" && !closing) return ctx.indented + statementIndentUnit;
      else return ctx.indented + (closing ? 0 : indentUnit);
    },

blockCommentStart: "/*",
    blockCommentEnd: "*/",
    lineComment: "//"
  };
});

CodeMirror.defineMIME("text/x-verilog", {
  name: "verilog"
});
CodeMirror.defineMIME("text/x-systemverilog", {
  name: "systemverilog"
});

});