Mercurial
diff .cms/lib/codemirror/mode/verilog/verilog.js @ 0:78edf6b517a0 draft
24.10
author | Coffee CMS <info@coffee-cms.ru> |
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date | Fri, 11 Oct 2024 22:40:23 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.cms/lib/codemirror/mode/verilog/verilog.js Fri Oct 11 22:40:23 2024 +0000 @@ -0,0 +1,781 @@ +// 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. + } + } + + } + }); +});