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110 lines
3.1 KiB
110 lines
3.1 KiB
6 years ago
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// 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("pascal", function() {
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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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var keywords = words("and array begin case const div do downto else end file for forward integer " +
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"boolean char function goto if in label mod nil not of or packed procedure " +
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"program record repeat set string then to type until var while with");
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var atoms = {"null": true};
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var isOperatorChar = /[+\-*&%=<>!?|\/]/;
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function tokenBase(stream, state) {
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var ch = stream.next();
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if (ch == "#" && state.startOfLine) {
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stream.skipToEnd();
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return "meta";
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}
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if (ch == '"' || ch == "'") {
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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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if (ch == "(" && 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 (/[\[\]{}\(\),;\:\.]/.test(ch)) {
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return null;
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}
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if (/\d/.test(ch)) {
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stream.eatWhile(/[\w\.]/);
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return "number";
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}
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if (ch == "/") {
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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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}
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if (isOperatorChar.test(ch)) {
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stream.eatWhile(isOperatorChar);
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return "operator";
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}
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stream.eatWhile(/[\w\$_]/);
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var cur = stream.current();
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if (keywords.propertyIsEnumerable(cur)) return "keyword";
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if (atoms.propertyIsEnumerable(cur)) return "atom";
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return "variable";
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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) state.tokenize = null;
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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 = null;
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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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// Interface
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return {
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startState: function() {
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return {tokenize: null};
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},
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token: function(stream, state) {
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if (stream.eatSpace()) return null;
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var style = (state.tokenize || tokenBase)(stream, state);
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if (style == "comment" || style == "meta") return style;
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return style;
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},
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electricChars: "{}"
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};
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});
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CodeMirror.defineMIME("text/x-pascal", "pascal");
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});
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