/var/www/coffee-cms.ru/html: .cms/lib/codemirror/mode/verilog/verilog.js comparison

comparison .cms/lib/codemirror/mode/verilog/verilog.js @ 0:78edf6b517a0 draft

24.10

author	Coffee CMS <info@coffee-cms.ru>
date	Fri, 11 Oct 2024 22:40:23 +0000
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children

comparison

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--1:000000000000
+:78edf6b517a0
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/5/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,
+// compilerDirectivesUseRegularIndentation - If set, Compiler directive
+// indentation follows the same rules as everything else. Otherwise if
+// false, compiler directives will track their own indentation.
+// For example, `ifdef nested inside another `ifndef will be indented,
+// but a `ifdef inside a function block may not be indented.
+compilerDirectivesUseRegularIndentation = parserConfig.compilerDirectivesUseRegularIndentation,
+noIndentKeywords = parserConfig.noIndentKeywords || [],
+multiLineStrings = parserConfig.multiLineStrings,
+hooks = parserConfig.hooks || {};
+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 compilerDirectiveRegex      = new RegExp(
+"^(`(?:ifdef|ifndef|elsif|else|endif|undef|undefineall|define|include|begin_keywords|celldefine|default|" +
+"nettype|end_keywords|endcelldefine|line|nounconnected_drive|pragma|resetall|timescale|unconnected_drive))\\b");
+var compilerDirectiveBeginRegex = /^(`(?:ifdef|ifndef|elsif|else))\b/;
+var compilerDirectiveEndRegex   = /^(`(?:elsif|else|endif))\b/;
+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";
+openClose["macro_begin"] = "macro_end";
+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 extern typedef");
+function tokenBase(stream, state) {
+var ch = stream.peek(), style;
+if (hooks[ch] && (style = hooks[ch](stream, state)) != false) return style;
+if (hooks.tokenBase && (style = hooks.tokenBase(stream, state)) != false)
+return style;
+if (/[,;:\.]/.test(ch)) {
+curPunc = stream.next();
+return null;
+}
+if (isBracketChar.test(ch)) {
+curPunc = stream.next();
+return "bracket";
+}
+// Macros (tick-defines)
+if (ch == '`') {
+stream.next();
+if (stream.eatWhile(/[\w\$_]/)) {
+var cur = stream.current();
+curKeyword = cur;
+// Macros that end in _begin, are start of block and end with _end
+if (cur.startsWith("`uvm_") && cur.endsWith("_begin")) {
+var keywordClose = curKeyword.substr(0,curKeyword.length - 5) + "end";
+openClose[cur] = keywordClose;
+curPunc = "newblock";
+} else {
+stream.eatSpace();
+if (stream.peek() == '(') {
+// Check if this is a block
+curPunc = "newmacro";
+}
+var withSpace = stream.current();
+// Move the stream back before the spaces
+stream.backUp(withSpace.length - cur.length);
+}
+return "def";
+} else {
+return null;
+}
+}
+// System calls
+if (ch == '$') {
+stream.next();
+if (stream.eatWhile(/[\w\$_]/)) {
+return "meta";
+} else {
+return null;
+}
+}
+// Time literals
+if (ch == '#') {
+stream.next();
+stream.eatWhile(/[\d_.]/);
+return "def";
+}
+// Event
+if (ch == '@') {
+stream.next();
+stream.eatWhile(/[@]/);
+return "def";
+}
+// Strings
+if (ch == '"') {
+stream.next();
+state.tokenize = tokenString(ch);
+return state.tokenize(stream, state);
+}
+// Comments
+if (ch == "/") {
+stream.next();
+if (stream.eat("*")) {
+state.tokenize = tokenComment;
+return tokenComment(stream, state);
+}
+if (stream.eat("/")) {
+stream.skipToEnd();
+return "comment";
+}
+stream.backUp(1);
+}
+// 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)) {
+curPunc = stream.current();
+return "meta";
+}
+// Keywords / plain variables
+if (stream.eatWhile(/[\w\$_]/)) {
+var cur = stream.current();
+if (keywords[cur]) {
+if (openClose[cur]) {
+curPunc = "newblock";
+if (cur === "fork") {
+// Fork can be a statement instead of block in cases of:
+// "disable fork;" and "wait fork;" (trailing semicolon)
+stream.eatSpace()
+if (stream.peek() == ';') {
+curPunc = "newstatement";
+}
+stream.backUp(stream.current().length - cur.length);
+}
+}
+if (statementKeywords[cur]) {
+curPunc = "newstatement";
+}
+curKeyword = cur;
+return "keyword";
+}
+return "variable";
+}
+stream.next();
+return null;
+}
+function tokenString(quote) {
+return function(stream, state) {
+var escaped = false, next, end = false;
+while ((next = stream.next()) != null) {
+if (next == quote && !escaped) {end = true; break;}
+escaped = !escaped && next == "\\";
+}
+if (end || !(escaped || multiLineStrings))
+state.tokenize = tokenBase;
+return "string";
+};
+}
+function tokenComment(stream, state) {
+var maybeEnd = false, ch;
+while (ch = stream.next()) {
+if (ch == "/" && maybeEnd) {
+state.tokenize = tokenBase;
+break;
+}
+maybeEnd = (ch == "*");
+}
+return "comment";
+}
+function Context(indented, column, type, scopekind, align, prev) {
+this.indented = indented;
+this.column = column;
+this.type = type;
+this.scopekind = scopekind;
+this.align = align;
+this.prev = prev;
+}
+function pushContext(state, col, type, scopekind) {
+var indent = state.indented;
+var c = new Context(indent, col, type, scopekind ? scopekind : "", null, state.context);
+return state.context = c;
+}
+function popContext(state) {
+var t = state.context.type;
+if (t == ")" || t == "]" || t == "}") {
+state.indented = state.context.indented;
+}
+return state.context = state.context.prev;
+}
+function isClosing(text, contextClosing) {
+if (text == contextClosing) {
+return true;
+} else {
+// contextClosing may be multiple keywords separated by ;
+var closingKeywords = contextClosing.split(";");
+for (var i in closingKeywords) {
+if (text == closingKeywords[i]) {
+return true;
+}
+}
+return false;
+}
+}
+function isInsideScopeKind(ctx, scopekind) {
+if (ctx == null) {
+return false;
+}
+if (ctx.scopekind === scopekind) {
+return true;
+}
+return isInsideScopeKind(ctx.prev, scopekind);
+}
+function buildElectricInputRegEx() {
+// Reindentation should occur on any bracket char: {}()[]
+// or on a match of any of the block closing keywords, at
+// the end of a line
+var allClosings = [];
+for (var i in openClose) {
+if (openClose[i]) {
+var closings = openClose[i].split(";");
+for (var j in closings) {
+allClosings.push(closings[j]);
+}
+}
+}
+var re = new RegExp("[{}()\\[\\]]|(" + allClosings.join("|") + ")$");
+return re;
+}
+// Interface
+return {
+// Regex to force current line to reindent
+electricInput: buildElectricInputRegEx(),
+startState: function(basecolumn) {
+var state = {
+tokenize: null,
+context: new Context((basecolumn || 0) - indentUnit, 0, "top", "top", false),
+indented: 0,
+compilerDirectiveIndented: 0,
+startOfLine: true
+};
+if (hooks.startState) hooks.startState(state);
+return state;
+},
+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 (hooks.token) {
+// Call hook, with an optional return value of a style to override verilog styling.
+var style = hooks.token(stream, state);
+if (style !== undefined) {
+return style;
+}
+}
+if (stream.eatSpace()) return null;
+curPunc = null;
+curKeyword = null;
+var style = (state.tokenize || tokenBase)(stream, state);
+if (style == "comment" || style == "meta" || style == "variable") {
+if (((curPunc === "=") || (curPunc === "<=")) && !isInsideScopeKind(ctx, "assignment")) {
+// '<=' could be nonblocking assignment or lessthan-equals (which shouldn't cause indent)
+//      Search through the context to see if we are already in an assignment.
+// '=' could be inside port declaration with comma or ')' afterward, or inside for(;;) block.
+pushContext(state, stream.column() + curPunc.length, "assignment", "assignment");
+if (ctx.align == null) ctx.align = true;
+}
+return style;
+}
+if (ctx.align == null) ctx.align = true;
+var isClosingAssignment = ctx.type == "assignment" &&
+closingBracket.test(curPunc) && ctx.prev && ctx.prev.type === curPunc;
+if (curPunc == ctx.type || isClosingAssignment) {
+if (isClosingAssignment) {
+ctx = popContext(state);
+}
+ctx = popContext(state);
+if (curPunc == ")") {
+// Handle closing macros, assuming they could have a semicolon or begin/end block inside.
+if (ctx && (ctx.type === "macro")) {
+ctx = popContext(state);
+while (ctx && (ctx.type == "statement" || ctx.type == "assignment")) ctx = popContext(state);
+}
+} else if (curPunc == "}") {
+// Handle closing statements like constraint block: "foreach () {}" which
+// do not have semicolon at end.
+if (ctx && (ctx.type === "statement")) {
+while (ctx && (ctx.type == "statement")) ctx = popContext(state);
+}
+}
+} else if (((curPunc == ";" || curPunc == ",") && (ctx.type == "statement" || ctx.type == "assignment")) ||
+(ctx.type && isClosing(curKeyword, ctx.type))) {
+ctx = popContext(state);
+while (ctx && (ctx.type == "statement" || ctx.type == "assignment")) 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", "case");
+} else if (curPunc == "newstatement") {
+pushContext(state, stream.column(), "statement", curKeyword);
+} 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 if (curKeyword == "class" && ctx && ctx.type == "statement") {
+// Same thing for class (e.g. typedef)
+} else {
+var close = openClose[curKeyword];
+pushContext(state, stream.column(), close, curKeyword);
+}
+} else if (curPunc == "newmacro" || (curKeyword && curKeyword.match(compilerDirectiveRegex))) {
+if (curPunc == "newmacro") {
+// Macros (especially if they have parenthesis) potentially have a semicolon
+// or complete statement/block inside, and should be treated as such.
+pushContext(state, stream.column(), "macro", "macro");
+}
+if (curKeyword.match(compilerDirectiveEndRegex)) {
+state.compilerDirectiveIndented -= statementIndentUnit;
+}
+if (curKeyword.match(compilerDirectiveBeginRegex)) {
+state.compilerDirectiveIndented += statementIndentUnit;
+}
+}
+state.startOfLine = false;
+return style;
+},
+indent: function(state, textAfter) {
+if (state.tokenize != tokenBase && state.tokenize != null) return CodeMirror.Pass;
+if (hooks.indent) {
+var fromHook = hooks.indent(state);
+if (fromHook >= 0) return fromHook;
+}
+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 (!compilerDirectivesUseRegularIndentation && textAfter.match(compilerDirectiveRegex)) {
+if (textAfter.match(compilerDirectiveEndRegex)) {
+return state.compilerDirectiveIndented - statementIndentUnit;
+}
+return state.compilerDirectiveIndented;
+}
+if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : statementIndentUnit);
+else if ((closingBracket.test(ctx.type) || ctx.type == "assignment")
+&& 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: "//",
+fold: "indent"
+};
+});
+CodeMirror.defineMIME("text/x-verilog", {
+name: "verilog"
+});
+CodeMirror.defineMIME("text/x-systemverilog", {
+name: "verilog"
+});
+// TL-Verilog mode.
+// See tl-x.org for language spec.
+// See the mode in action at makerchip.com.
+// Contact: steve.hoover@redwoodeda.com
+// TLV Identifier prefixes.
+// Note that sign is not treated separately, so "+/-" versions of numeric identifiers
+// are included.
+var tlvIdentifierStyle = {
+"|": "link",
+">": "property",  // Should condition this off for > TLV 1c.
+"$": "variable",
+"$$": "variable",
+"?$": "qualifier",
+"?*": "qualifier",
+"-": "hr",
+"/": "property",
+"/-": "property",
+"@": "variable-3",
+"@-": "variable-3",
+"@++": "variable-3",
+"@+=": "variable-3",
+"@+=-": "variable-3",
+"@--": "variable-3",
+"@-=": "variable-3",
+"%+": "tag",
+"%-": "tag",
+"%": "tag",
+">>": "tag",
+"<<": "tag",
+"<>": "tag",
+"#": "tag",  // Need to choose a style for this.
+"^": "attribute",
+"^^": "attribute",
+"^!": "attribute",
+"*": "variable-2",
+"**": "variable-2",
+"\\": "keyword",
+"\"": "comment"
+};
+// Lines starting with these characters define scope (result in indentation).
+var tlvScopePrefixChars = {
+"/": "beh-hier",
+">": "beh-hier",
+"-": "phys-hier",
+"|": "pipe",
+"?": "when",
+"@": "stage",
+"\\": "keyword"
+};
+var tlvIndentUnit = 3;
+var tlvTrackStatements = false;
+var tlvIdentMatch = /^([~!@#\$%\^&\*-\+=\?\/\\\|'"<>]+)([\d\w_]*)/;  // Matches an identifier.
+// Note that ':' is excluded, because of it's use in [:].
+var tlvFirstLevelIndentMatch = /^[! ]  /;
+var tlvLineIndentationMatch = /^[! ] */;
+var tlvCommentMatch = /^\/[\/\*]/;
+// Returns a style specific to the scope at the given indentation column.
+// Type is one of: "indent", "scope-ident", "before-scope-ident".
+function tlvScopeStyle(state, indentation, type) {
+// Begin scope.
+var depth = indentation / tlvIndentUnit;  // TODO: Pass this in instead.
+return "tlv-" + state.tlvIndentationStyle[depth] + "-" + type;
+}
+// Return true if the next thing in the stream is an identifier with a mnemonic.
+function tlvIdentNext(stream) {
+var match;
+return (match = stream.match(tlvIdentMatch, false)) && match[2].length > 0;
+}
+CodeMirror.defineMIME("text/x-tlv", {
+name: "verilog",
+hooks: {
+electricInput: false,
+// Return undefined for verilog tokenizing, or style for TLV token (null not used).
+// Standard CM styles are used for most formatting, but some TL-Verilog-specific highlighting
+// can be enabled with the definition of cm-tlv-* styles, including highlighting for:
+//   - M4 tokens
+//   - TLV scope indentation
+//   - Statement delimitation (enabled by tlvTrackStatements)
+token: function(stream, state) {
+var style = undefined;
+var match;  // Return value of pattern matches.
+// Set highlighting mode based on code region (TLV or SV).
+if (stream.sol() && ! state.tlvInBlockComment) {
+// Process region.
+if (stream.peek() == '\\') {
+style = "def";
+stream.skipToEnd();
+if (stream.string.match(/\\SV/)) {
+state.tlvCodeActive = false;
+} else if (stream.string.match(/\\TLV/)){
+state.tlvCodeActive = true;
+}
+}
+// Correct indentation in the face of a line prefix char.
+if (state.tlvCodeActive && stream.pos == 0 &&
+(state.indented == 0) && (match = stream.match(tlvLineIndentationMatch, false))) {
+state.indented = match[0].length;
+}
+// Compute indentation state:
+//   o Auto indentation on next line
+//   o Indentation scope styles
+var indented = state.indented;
+var depth = indented / tlvIndentUnit;
+if (depth <= state.tlvIndentationStyle.length) {
+// not deeper than current scope
+var blankline = stream.string.length == indented;
+var chPos = depth * tlvIndentUnit;
+if (chPos < stream.string.length) {
+var bodyString = stream.string.slice(chPos);
+var ch = bodyString[0];
+if (tlvScopePrefixChars[ch] && ((match = bodyString.match(tlvIdentMatch)) &&
+tlvIdentifierStyle[match[1]])) {
+// This line begins scope.
+// Next line gets indented one level.
+indented += tlvIndentUnit;
+// Style the next level of indentation (except non-region keyword identifiers,
+//   which are statements themselves)
+if (!(ch == "\\" && chPos > 0)) {
+state.tlvIndentationStyle[depth] = tlvScopePrefixChars[ch];
+if (tlvTrackStatements) {state.statementComment = false;}
+depth++;
+}
+}
+}
+// Clear out deeper indentation levels unless line is blank.
+if (!blankline) {
+while (state.tlvIndentationStyle.length > depth) {
+state.tlvIndentationStyle.pop();
+}
+}
+}
+// Set next level of indentation.
+state.tlvNextIndent = indented;
+}
+if (state.tlvCodeActive) {
+// Highlight as TLV.
+var beginStatement = false;
+if (tlvTrackStatements) {
+// This starts a statement if the position is at the scope level
+// and we're not within a statement leading comment.
+beginStatement =
+(stream.peek() != " ") &&   // not a space
+(style === undefined) &&    // not a region identifier
+!state.tlvInBlockComment && // not in block comment
+//!stream.match(tlvCommentMatch, false) && // not comment start
+(stream.column() == state.tlvIndentationStyle.length * tlvIndentUnit);  // at scope level
+if (beginStatement) {
+if (state.statementComment) {
+// statement already started by comment
+beginStatement = false;
+}
+state.statementComment =
+stream.match(tlvCommentMatch, false); // comment start
+}
+}
+var match;
+if (style !== undefined) {
+// Region line.
+style += " " + tlvScopeStyle(state, 0, "scope-ident")
+} else if (((stream.pos / tlvIndentUnit) < state.tlvIndentationStyle.length) &&
+(match = stream.match(stream.sol() ? tlvFirstLevelIndentMatch : /^   /))) {
+// Indentation
+style = // make this style distinct from the previous one to prevent
+// codemirror from combining spans
+"tlv-indent-" + (((stream.pos % 2) == 0) ? "even" : "odd") +
+// and style it
+" " + tlvScopeStyle(state, stream.pos - tlvIndentUnit, "indent");
+// Style the line prefix character.
+if (match[0].charAt(0) == "!") {
+style += " tlv-alert-line-prefix";
+}
+// Place a class before a scope identifier.
+if (tlvIdentNext(stream)) {
+style += " " + tlvScopeStyle(state, stream.pos, "before-scope-ident");
+}
+} else if (state.tlvInBlockComment) {
+// In a block comment.
+if (stream.match(/^.*?\*\//)) {
+// Exit block comment.
+state.tlvInBlockComment = false;
+if (tlvTrackStatements && !stream.eol()) {
+// Anything after comment is assumed to be real statement content.
+state.statementComment = false;
+}
+} else {
+stream.skipToEnd();
+}
+style = "comment";
+} else if ((match = stream.match(tlvCommentMatch)) && !state.tlvInBlockComment) {
+// Start comment.
+if (match[0] == "//") {
+// Line comment.
+stream.skipToEnd();
+} else {
+// Block comment.
+state.tlvInBlockComment = true;
+}
+style = "comment";
+} else if (match = stream.match(tlvIdentMatch)) {
+// looks like an identifier (or identifier prefix)
+var prefix = match[1];
+var mnemonic = match[2];
+if (// is identifier prefix
+tlvIdentifierStyle.hasOwnProperty(prefix) &&
+// has mnemonic or we're at the end of the line (maybe it hasn't been typed yet)
+(mnemonic.length > 0 || stream.eol())) {
+style = tlvIdentifierStyle[prefix];
+if (stream.column() == state.indented) {
+// Begin scope.
+style += " " + tlvScopeStyle(state, stream.column(), "scope-ident")
+}
+} else {
+// Just swallow one character and try again.
+// This enables subsequent identifier match with preceding symbol character, which
+//   is legal within a statement.  (E.g., !$reset).  It also enables detection of
+//   comment start with preceding symbols.
+stream.backUp(stream.current().length - 1);
+style = "tlv-default";
+}
+} else if (stream.match(/^\t+/)) {
+// Highlight tabs, which are illegal.
+style = "tlv-tab";
+} else if (stream.match(/^[\[\]{}\(\);\:]+/)) {
+// [:], (), {}, ;.
+style = "meta";
+} else if (match = stream.match(/^[mM]4([\+_])?[\w\d_]*/)) {
+// m4 pre proc
+style = (match[1] == "+") ? "tlv-m4-plus" : "tlv-m4";
+} else if (stream.match(/^ +/)){
+// Skip over spaces.
+if (stream.eol()) {
+// Trailing spaces.
+style = "error";
+} else {
+// Non-trailing spaces.
+style = "tlv-default";
+}
+} else if (stream.match(/^[\w\d_]+/)) {
+// alpha-numeric token.
+style = "number";
+} else {
+// Eat the next char w/ no formatting.
+stream.next();
+style = "tlv-default";
+}
+if (beginStatement) {
+style += " tlv-statement";
+}
+} else {
+if (stream.match(/^[mM]4([\w\d_]*)/)) {
+// m4 pre proc
+style = "tlv-m4";
+}
+}
+return style;
+},
+indent: function(state) {
+return (state.tlvCodeActive == true) ? state.tlvNextIndent : -1;
+},
+startState: function(state) {
+state.tlvIndentationStyle = [];  // Styles to use for each level of indentation.
+state.tlvCodeActive = true;  // True when we're in a TLV region (and at beginning of file).
+state.tlvNextIndent = -1;    // The number of spaces to autoindent the next line if tlvCodeActive.
+state.tlvInBlockComment = false;  // True inside /**/ comment.
+if (tlvTrackStatements) {
+state.statementComment = false;  // True inside a statement's header comment.
+}
+}
+}
+});
+});