mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/CodeMirror
synced 2024-12-11 22:06:00 +00:00
676 lines
24 KiB
JavaScript
676 lines
24 KiB
JavaScript
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: http://codemirror.net/LICENSE
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(function(mod) {
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if (typeof exports == "object" && typeof module == "object") // CommonJS
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mod(require("../../lib/codemirror"));
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else if (typeof define == "function" && define.amd) // AMD
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define(["../../lib/codemirror"], mod);
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else // Plain browser env
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mod(CodeMirror);
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})(function(CodeMirror) {
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"use strict";
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CodeMirror.defineMode("verilog", function(config, parserConfig) {
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var indentUnit = config.indentUnit,
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statementIndentUnit = parserConfig.statementIndentUnit || indentUnit,
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dontAlignCalls = parserConfig.dontAlignCalls,
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noIndentKeywords = parserConfig.noIndentKeywords || [],
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multiLineStrings = parserConfig.multiLineStrings,
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hooks = parserConfig.hooks || {};
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function words(str) {
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var obj = {}, words = str.split(" ");
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for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
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return obj;
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}
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/**
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* Keywords from IEEE 1800-2012
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*/
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var keywords = words(
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"accept_on alias always always_comb always_ff always_latch and assert assign assume automatic before begin bind " +
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"bins binsof bit break buf bufif0 bufif1 byte case casex casez cell chandle checker class clocking cmos config " +
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"const constraint context continue cover covergroup coverpoint cross deassign default defparam design disable " +
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"dist do edge else end endcase endchecker endclass endclocking endconfig endfunction endgenerate endgroup " +
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"endinterface endmodule endpackage endprimitive endprogram endproperty endspecify endsequence endtable endtask " +
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"enum event eventually expect export extends extern final first_match for force foreach forever fork forkjoin " +
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"function generate genvar global highz0 highz1 if iff ifnone ignore_bins illegal_bins implements implies import " +
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"incdir include initial inout input inside instance int integer interconnect interface intersect join join_any " +
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"join_none large let liblist library local localparam logic longint macromodule matches medium modport module " +
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"nand negedge nettype new nexttime nmos nor noshowcancelled not notif0 notif1 null or output package packed " +
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"parameter pmos posedge primitive priority program property protected pull0 pull1 pulldown pullup " +
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"pulsestyle_ondetect pulsestyle_onevent pure rand randc randcase randsequence rcmos real realtime ref reg " +
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"reject_on release repeat restrict return rnmos rpmos rtran rtranif0 rtranif1 s_always s_eventually s_nexttime " +
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"s_until s_until_with scalared sequence shortint shortreal showcancelled signed small soft solve specify " +
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"specparam static string strong strong0 strong1 struct super supply0 supply1 sync_accept_on sync_reject_on " +
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"table tagged task this throughout time timeprecision timeunit tran tranif0 tranif1 tri tri0 tri1 triand trior " +
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"trireg type typedef union unique unique0 unsigned until until_with untyped use uwire var vectored virtual void " +
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"wait wait_order wand weak weak0 weak1 while wildcard wire with within wor xnor xor");
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/** Operators from IEEE 1800-2012
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unary_operator ::=
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+ | - | ! | ~ | & | ~& | | | ~| | ^ | ~^ | ^~
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binary_operator ::=
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+ | - | * | / | % | == | != | === | !== | ==? | !=? | && | || | **
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| < | <= | > | >= | & | | | ^ | ^~ | ~^ | >> | << | >>> | <<<
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| -> | <->
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inc_or_dec_operator ::= ++ | --
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unary_module_path_operator ::=
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! | ~ | & | ~& | | | ~| | ^ | ~^ | ^~
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binary_module_path_operator ::=
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== | != | && | || | & | | | ^ | ^~ | ~^
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*/
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var isOperatorChar = /[\+\-\*\/!~&|^%=?:]/;
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var isBracketChar = /[\[\]{}()]/;
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var unsignedNumber = /\d[0-9_]*/;
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var decimalLiteral = /\d*\s*'s?d\s*\d[0-9_]*/i;
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var binaryLiteral = /\d*\s*'s?b\s*[xz01][xz01_]*/i;
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var octLiteral = /\d*\s*'s?o\s*[xz0-7][xz0-7_]*/i;
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var hexLiteral = /\d*\s*'s?h\s*[0-9a-fxz?][0-9a-fxz?_]*/i;
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var realLiteral = /(\d[\d_]*(\.\d[\d_]*)?E-?[\d_]+)|(\d[\d_]*\.\d[\d_]*)/i;
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var closingBracketOrWord = /^((\w+)|[)}\]])/;
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var closingBracket = /[)}\]]/;
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var curPunc;
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var curKeyword;
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// Block openings which are closed by a matching keyword in the form of ("end" + keyword)
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// E.g. "task" => "endtask"
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var blockKeywords = words(
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"case checker class clocking config function generate interface module package " +
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"primitive program property specify sequence table task"
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);
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// Opening/closing pairs
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var openClose = {};
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for (var keyword in blockKeywords) {
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openClose[keyword] = "end" + keyword;
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}
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openClose["begin"] = "end";
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openClose["casex"] = "endcase";
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openClose["casez"] = "endcase";
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openClose["do" ] = "while";
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openClose["fork" ] = "join;join_any;join_none";
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openClose["covergroup"] = "endgroup";
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for (var i in noIndentKeywords) {
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var keyword = noIndentKeywords[i];
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if (openClose[keyword]) {
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openClose[keyword] = undefined;
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}
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}
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// Keywords which open statements that are ended with a semi-colon
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var statementKeywords = words("always always_comb always_ff always_latch assert assign assume else export for foreach forever if import initial repeat while");
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function tokenBase(stream, state) {
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var ch = stream.peek(), style;
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if (hooks[ch] && (style = hooks[ch](stream, state)) != false) return style;
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if (hooks.tokenBase && (style = hooks.tokenBase(stream, state)) != false)
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return style;
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if (/[,;:\.]/.test(ch)) {
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curPunc = stream.next();
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return null;
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}
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if (isBracketChar.test(ch)) {
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curPunc = stream.next();
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return "bracket";
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}
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// Macros (tick-defines)
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if (ch == '`') {
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stream.next();
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if (stream.eatWhile(/[\w\$_]/)) {
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return "def";
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} else {
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return null;
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}
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}
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// System calls
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if (ch == '$') {
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stream.next();
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if (stream.eatWhile(/[\w\$_]/)) {
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return "meta";
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} else {
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return null;
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}
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}
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// Time literals
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if (ch == '#') {
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stream.next();
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stream.eatWhile(/[\d_.]/);
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return "def";
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}
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// Strings
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if (ch == '"') {
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stream.next();
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state.tokenize = tokenString(ch);
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return state.tokenize(stream, state);
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}
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// Comments
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if (ch == "/") {
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stream.next();
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if (stream.eat("*")) {
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state.tokenize = tokenComment;
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return tokenComment(stream, state);
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}
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if (stream.eat("/")) {
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stream.skipToEnd();
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return "comment";
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}
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stream.backUp(1);
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}
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// Numeric literals
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if (stream.match(realLiteral) ||
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stream.match(decimalLiteral) ||
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stream.match(binaryLiteral) ||
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stream.match(octLiteral) ||
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stream.match(hexLiteral) ||
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stream.match(unsignedNumber) ||
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stream.match(realLiteral)) {
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return "number";
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}
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// Operators
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if (stream.eatWhile(isOperatorChar)) {
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return "meta";
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}
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// Keywords / plain variables
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if (stream.eatWhile(/[\w\$_]/)) {
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var cur = stream.current();
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if (keywords[cur]) {
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if (openClose[cur]) {
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curPunc = "newblock";
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}
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if (statementKeywords[cur]) {
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curPunc = "newstatement";
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}
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curKeyword = cur;
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return "keyword";
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}
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return "variable";
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}
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stream.next();
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return null;
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}
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function tokenString(quote) {
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return function(stream, state) {
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var escaped = false, next, end = false;
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while ((next = stream.next()) != null) {
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if (next == quote && !escaped) {end = true; break;}
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escaped = !escaped && next == "\\";
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}
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if (end || !(escaped || multiLineStrings))
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state.tokenize = tokenBase;
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return "string";
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};
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}
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function tokenComment(stream, state) {
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var maybeEnd = false, ch;
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while (ch = stream.next()) {
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if (ch == "/" && maybeEnd) {
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state.tokenize = tokenBase;
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break;
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}
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maybeEnd = (ch == "*");
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}
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return "comment";
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}
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function Context(indented, column, type, align, prev) {
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this.indented = indented;
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this.column = column;
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this.type = type;
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this.align = align;
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this.prev = prev;
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}
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function pushContext(state, col, type) {
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var indent = state.indented;
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var c = new Context(indent, col, type, null, state.context);
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return state.context = c;
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}
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function popContext(state) {
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var t = state.context.type;
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if (t == ")" || t == "]" || t == "}") {
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state.indented = state.context.indented;
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}
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return state.context = state.context.prev;
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}
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function isClosing(text, contextClosing) {
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if (text == contextClosing) {
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return true;
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} else {
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// contextClosing may be multiple keywords separated by ;
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var closingKeywords = contextClosing.split(";");
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for (var i in closingKeywords) {
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if (text == closingKeywords[i]) {
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return true;
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}
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}
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return false;
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}
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}
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function buildElectricInputRegEx() {
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// Reindentation should occur on any bracket char: {}()[]
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// or on a match of any of the block closing keywords, at
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// the end of a line
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var allClosings = [];
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for (var i in openClose) {
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if (openClose[i]) {
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var closings = openClose[i].split(";");
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for (var j in closings) {
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allClosings.push(closings[j]);
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}
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}
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}
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var re = new RegExp("[{}()\\[\\]]|(" + allClosings.join("|") + ")$");
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return re;
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}
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// Interface
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return {
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// Regex to force current line to reindent
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electricInput: buildElectricInputRegEx(),
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startState: function(basecolumn) {
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var state = {
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tokenize: null,
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context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
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indented: 0,
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startOfLine: true
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};
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if (hooks.startState) hooks.startState(state);
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return state;
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},
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token: function(stream, state) {
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var ctx = state.context;
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if (stream.sol()) {
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if (ctx.align == null) ctx.align = false;
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state.indented = stream.indentation();
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state.startOfLine = true;
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}
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if (hooks.token) {
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// Call hook, with an optional return value of a style to override verilog styling.
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var style = hooks.token(stream, state);
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if (style !== undefined) {
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return style;
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}
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}
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if (stream.eatSpace()) return null;
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curPunc = null;
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curKeyword = null;
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var style = (state.tokenize || tokenBase)(stream, state);
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if (style == "comment" || style == "meta" || style == "variable") return style;
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if (ctx.align == null) ctx.align = true;
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if (curPunc == ctx.type) {
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popContext(state);
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} else if ((curPunc == ";" && ctx.type == "statement") ||
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(ctx.type && isClosing(curKeyword, ctx.type))) {
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ctx = popContext(state);
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while (ctx && ctx.type == "statement") ctx = popContext(state);
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} else if (curPunc == "{") {
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pushContext(state, stream.column(), "}");
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} else if (curPunc == "[") {
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pushContext(state, stream.column(), "]");
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} else if (curPunc == "(") {
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pushContext(state, stream.column(), ")");
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} else if (ctx && ctx.type == "endcase" && curPunc == ":") {
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pushContext(state, stream.column(), "statement");
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} else if (curPunc == "newstatement") {
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pushContext(state, stream.column(), "statement");
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} else if (curPunc == "newblock") {
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if (curKeyword == "function" && ctx && (ctx.type == "statement" || ctx.type == "endgroup")) {
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// The 'function' keyword can appear in some other contexts where it actually does not
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// indicate a function (import/export DPI and covergroup definitions).
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// Do nothing in this case
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} else if (curKeyword == "task" && ctx && ctx.type == "statement") {
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// Same thing for task
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} else {
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var close = openClose[curKeyword];
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pushContext(state, stream.column(), close);
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}
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}
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state.startOfLine = false;
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return style;
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},
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indent: function(state, textAfter) {
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if (state.tokenize != tokenBase && state.tokenize != null) return CodeMirror.Pass;
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if (hooks.indent) {
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var fromHook = hooks.indent(state);
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if (fromHook >= 0) return fromHook;
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}
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var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
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if (ctx.type == "statement" && firstChar == "}") ctx = ctx.prev;
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var closing = false;
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var possibleClosing = textAfter.match(closingBracketOrWord);
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if (possibleClosing)
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closing = isClosing(possibleClosing[0], ctx.type);
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if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : statementIndentUnit);
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else if (closingBracket.test(ctx.type) && ctx.align && !dontAlignCalls) return ctx.column + (closing ? 0 : 1);
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else if (ctx.type == ")" && !closing) return ctx.indented + statementIndentUnit;
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else return ctx.indented + (closing ? 0 : indentUnit);
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},
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blockCommentStart: "/*",
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blockCommentEnd: "*/",
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lineComment: "//"
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};
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});
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CodeMirror.defineMIME("text/x-verilog", {
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name: "verilog"
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});
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CodeMirror.defineMIME("text/x-systemverilog", {
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name: "verilog"
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});
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// TL-Verilog mode.
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// See tl-x.org for language spec.
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// See the mode in action at makerchip.com.
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// Contact: steve.hoover@redwoodeda.com
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// TLV Identifier prefixes.
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// Note that sign is not treated separately, so "+/-" versions of numeric identifiers
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// are included.
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var tlvIdentifierStyle = {
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"|": "link",
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">": "property", // Should condition this off for > TLV 1c.
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"$": "variable",
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"$$": "variable",
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"?$": "qualifier",
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"?*": "qualifier",
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"-": "hr",
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"/": "property",
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"/-": "property",
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"@": "variable-3",
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"@-": "variable-3",
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"@++": "variable-3",
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"@+=": "variable-3",
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"@+=-": "variable-3",
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"@--": "variable-3",
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"@-=": "variable-3",
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"%+": "tag",
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"%-": "tag",
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"%": "tag",
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">>": "tag",
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"<<": "tag",
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"<>": "tag",
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"#": "tag", // Need to choose a style for this.
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"^": "attribute",
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"^^": "attribute",
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"^!": "attribute",
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"*": "variable-2",
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"**": "variable-2",
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"\\": "keyword",
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"\"": "comment"
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};
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// Lines starting with these characters define scope (result in indentation).
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var tlvScopePrefixChars = {
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"/": "beh-hier",
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">": "beh-hier",
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"-": "phys-hier",
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"|": "pipe",
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"?": "when",
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"@": "stage",
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"\\": "keyword"
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};
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var tlvIndentUnit = 3;
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var tlvTrackStatements = false;
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var tlvIdentMatch = /^([~!@#\$%\^&\*-\+=\?\/\\\|'"<>]+)([\d\w_]*)/; // Matches an identifiere.
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// Note that ':' is excluded, because of it's use in [:].
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var tlvFirstLevelIndentMatch = /^[! ] /;
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var tlvLineIndentationMatch = /^[! ] */;
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var tlvCommentMatch = /^\/[\/\*]/;
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// Returns a style specific to the scope at the given indentation column.
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// Type is one of: "indent", "scope-ident", "before-scope-ident".
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function tlvScopeStyle(state, indentation, type) {
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// Begin scope.
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var depth = indentation / tlvIndentUnit; // TODO: Pass this in instead.
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return "tlv-" + state.tlvIndentationStyle[depth] + "-" + type;
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}
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// Return true if the next thing in the stream is an identifier with a mnemonic.
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function tlvIdentNext(stream) {
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var match;
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return (match = stream.match(tlvIdentMatch, false)) && match[2].length > 0;
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}
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CodeMirror.defineMIME("text/x-tlv", {
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name: "verilog",
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hooks: {
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electricInput: false,
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// Return undefined for verilog tokenizing, or style for TLV token (null not used).
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// Standard CM styles are used for most formatting, but some TL-Verilog-specific highlighting
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// can be enabled with the definition of cm-tlv-* styles, including highlighting for:
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// - M4 tokens
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// - TLV scope indentation
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// - Statement delimitation (enabled by tlvTrackStatements)
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token: function(stream, state) {
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var style = undefined;
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var match; // Return value of pattern matches.
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// Set highlighting mode based on code region (TLV or SV).
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if (stream.sol() && ! state.tlvInBlockComment) {
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// Process region.
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if (stream.peek() == '\\') {
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style = "def";
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stream.skipToEnd();
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if (stream.string.match(/\\SV/)) {
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state.tlvCodeActive = false;
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|
} 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. (Eg, !$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.
|
|
}
|
|
}
|
|
|
|
}
|
|
});
|
|
});
|