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// CodeMirror, copyright (c) by Marijn Haverbeke and others // Distributed under an MIT license: https://codemirror.net/LICENSE (function(mod) { if (typeof exports == "object" && typeof module == "object") // CommonJS mod(require("../../lib/codemirror")); else if (typeof define == "function" && define.amd) // AMD define(["../../lib/codemirror"], mod); else // Plain browser env mod(CodeMirror); })(function(CodeMirror) { "use strict"; CodeMirror.defineMode("ebnf", function (config) { var commentType = {slash: 0, parenthesis: 1}; var stateType = {comment: 0, _string: 1, characterClass: 2}; var bracesMode = null; if (config.bracesMode) bracesMode = CodeMirror.getMode(config, config.bracesMode); return { startState: function () { return { stringType: null, commentType: null, braced: 0, lhs: true, localState: null, stack: [], inDefinition: false }; }, token: function (stream, state) { if (!stream) return; //check for state changes if (state.stack.length === 0) { //strings if ((stream.peek() == '"') || (stream.peek() == "'")) { state.stringType = stream.peek(); stream.next(); // Skip quote state.stack.unshift(stateType._string); } else if (stream.match('/*')) { //comments starting with /* state.stack.unshift(stateType.comment); state.commentType = commentType.slash; } else if (stream.match('(*')) { //comments starting with (* state.stack.unshift(stateType.comment); state.commentType = commentType.parenthesis; } } //return state //stack has switch (state.stack[0]) { case stateType._string: while (state.stack[0] === stateType._string && !stream.eol()) { if (stream.peek() === state.stringType) { stream.next(); // Skip quote state.stack.shift(); // Clear flag } else if (stream.peek() === "\\") { stream.next(); stream.next(); } else { stream.match(/^.[^\\\"\']*/); } } return state.lhs ? "property string" : "string"; // Token style case stateType.comment: while (state.stack[0] === stateType.comment && !stream.eol()) { if (state.commentType === commentType.slash && stream.match('*/')) { state.stack.shift(); // Clear flag state.commentType = null; } else if (state.commentType === commentType.parenthesis && stream.match('*)')) { state.stack.shift(); // Clear flag state.commentType = null; } else { stream.match(/^.[^\*]*/); } } return "comment"; case stateType.characterClass: while (state.stack[0] === stateType.characterClass && !stream.eol()) { if (!(stream.match(/^[^\]\\]+/) || stream.match('.'))) { state.stack.shift(); } } return "operator"; } var peek = stream.peek(); if (bracesMode !== null && (state.braced || peek === "{")) { if (state.localState === null) state.localState = CodeMirror.startState(bracesMode); var token = bracesMode.token(stream, state.localState), text = stream.current(); if (!token) { for (var i = 0; i < text.length; i++) { if (text[i] === "{") { if (state.braced === 0) { token = "matchingbracket"; } state.braced++; } else if (text[i] === "}") { state.braced--; if (state.braced === 0) { token = "matchingbracket"; } } } } return token; } //no stack switch (peek) { case "[": stream.next(); state.stack.unshift(stateType.characterClass); return "bracket"; case ":": case "|": case ";": stream.next(); return "operator"; case "%": if (stream.match("%%")) { return "header"; } else if (stream.match(/[%][A-Za-z]+/)) { return "keyword"; } else if (stream.match(/[%][}]/)) { return "matchingbracket"; } break; case "/": if (stream.match(/[\/][A-Za-z]+/)) { return "keyword"; } case "\\": if (stream.match(/[\][a-z]+/)) { return "string-2"; } case ".": if (stream.match(".")) { return "atom"; } case "*": case "-": case "+": case "^": if (stream.match(peek)) { return "atom"; } case "$": if (stream.match("$$")) { return "builtin"; } else if (stream.match(/[$][0-9]+/)) { return "variable-3"; } case "<": if (stream.match(/<<[a-zA-Z_]+>>/)) { return "builtin"; } } if (stream.match('//')) { stream.skipToEnd(); return "comment"; } else if (stream.match('return')) { return "operator"; } else if (stream.match(/^[a-zA-Z_][a-zA-Z0-9_]*/)) { if (stream.match(/(?=[\(.])/)) { return "variable"; } else if (stream.match(/(?=[\s\n]*[:=])/)) { return "def"; } return "variable-2"; } else if (["[", "]", "(", ")"].indexOf(stream.peek()) != -1) { stream.next(); return "bracket"; } else if (!stream.eatSpace()) { stream.next(); } return null; } }; }); CodeMirror.defineMIME("text/x-ebnf", "ebnf"); });