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- // CodeMirror, copyright (c) by Marijn Haverbeke and others
- // Distributed under an MIT license: http://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("ruby", function(config) {
- function wordObj(words) {
- var o = {};
- for (var i = 0, e = words.length; i < e; ++i) o[words[i]] = true;
- return o;
- }
- var keywords = wordObj([
- "alias", "and", "BEGIN", "begin", "break", "case", "class", "def", "defined?", "do", "else",
- "elsif", "END", "end", "ensure", "false", "for", "if", "in", "module", "next", "not", "or",
- "redo", "rescue", "retry", "return", "self", "super", "then", "true", "undef", "unless",
- "until", "when", "while", "yield", "nil", "raise", "throw", "catch", "fail", "loop", "callcc",
- "caller", "lambda", "proc", "public", "protected", "private", "require", "load",
- "require_relative", "extend", "autoload", "__END__", "__FILE__", "__LINE__", "__dir__"
- ]);
- var indentWords = wordObj(["def", "class", "case", "for", "while", "until", "module", "then",
- "catch", "loop", "proc", "begin"]);
- var dedentWords = wordObj(["end", "until"]);
- var matching = {"[": "]", "{": "}", "(": ")"};
- var curPunc;
- function chain(newtok, stream, state) {
- state.tokenize.push(newtok);
- return newtok(stream, state);
- }
- function tokenBase(stream, state) {
- if (stream.sol() && stream.match("=begin") && stream.eol()) {
- state.tokenize.push(readBlockComment);
- return "comment";
- }
- if (stream.eatSpace()) return null;
- var ch = stream.next(), m;
- if (ch == "`" || ch == "'" || ch == '"') {
- return chain(readQuoted(ch, "string", ch == '"' || ch == "`"), stream, state);
- } else if (ch == "/") {
- var currentIndex = stream.current().length;
- if (stream.skipTo("/")) {
- var search_till = stream.current().length;
- stream.backUp(stream.current().length - currentIndex);
- var balance = 0; // balance brackets
- while (stream.current().length < search_till) {
- var chchr = stream.next();
- if (chchr == "(") balance += 1;
- else if (chchr == ")") balance -= 1;
- if (balance < 0) break;
- }
- stream.backUp(stream.current().length - currentIndex);
- if (balance == 0)
- return chain(readQuoted(ch, "string-2", true), stream, state);
- }
- return "operator";
- } else if (ch == "%") {
- var style = "string", embed = true;
- if (stream.eat("s")) style = "atom";
- else if (stream.eat(/[WQ]/)) style = "string";
- else if (stream.eat(/[r]/)) style = "string-2";
- else if (stream.eat(/[wxq]/)) { style = "string"; embed = false; }
- var delim = stream.eat(/[^\w\s=]/);
- if (!delim) return "operator";
- if (matching.propertyIsEnumerable(delim)) delim = matching[delim];
- return chain(readQuoted(delim, style, embed, true), stream, state);
- } else if (ch == "#") {
- stream.skipToEnd();
- return "comment";
- } else if (ch == "<" && (m = stream.match(/^<-?[\`\"\']?([a-zA-Z_?]\w*)[\`\"\']?(?:;|$)/))) {
- return chain(readHereDoc(m[1]), stream, state);
- } else if (ch == "0") {
- if (stream.eat("x")) stream.eatWhile(/[\da-fA-F]/);
- else if (stream.eat("b")) stream.eatWhile(/[01]/);
- else stream.eatWhile(/[0-7]/);
- return "number";
- } else if (/\d/.test(ch)) {
- stream.match(/^[\d_]*(?:\.[\d_]+)?(?:[eE][+\-]?[\d_]+)?/);
- return "number";
- } else if (ch == "?") {
- while (stream.match(/^\\[CM]-/)) {}
- if (stream.eat("\\")) stream.eatWhile(/\w/);
- else stream.next();
- return "string";
- } else if (ch == ":") {
- if (stream.eat("'")) return chain(readQuoted("'", "atom", false), stream, state);
- if (stream.eat('"')) return chain(readQuoted('"', "atom", true), stream, state);
- // :> :>> :< :<< are valid symbols
- if (stream.eat(/[\<\>]/)) {
- stream.eat(/[\<\>]/);
- return "atom";
- }
- // :+ :- :/ :* :| :& :! are valid symbols
- if (stream.eat(/[\+\-\*\/\&\|\:\!]/)) {
- return "atom";
- }
- // Symbols can't start by a digit
- if (stream.eat(/[a-zA-Z$@_\xa1-\uffff]/)) {
- stream.eatWhile(/[\w$\xa1-\uffff]/);
- // Only one ? ! = is allowed and only as the last character
- stream.eat(/[\?\!\=]/);
- return "atom";
- }
- return "operator";
- } else if (ch == "@" && stream.match(/^@?[a-zA-Z_\xa1-\uffff]/)) {
- stream.eat("@");
- stream.eatWhile(/[\w\xa1-\uffff]/);
- return "variable-2";
- } else if (ch == "$") {
- if (stream.eat(/[a-zA-Z_]/)) {
- stream.eatWhile(/[\w]/);
- } else if (stream.eat(/\d/)) {
- stream.eat(/\d/);
- } else {
- stream.next(); // Must be a special global like $: or $!
- }
- return "variable-3";
- } else if (/[a-zA-Z_\xa1-\uffff]/.test(ch)) {
- stream.eatWhile(/[\w\xa1-\uffff]/);
- stream.eat(/[\?\!]/);
- if (stream.eat(":")) return "atom";
- return "ident";
- } else if (ch == "|" && (state.varList || state.lastTok == "{" || state.lastTok == "do")) {
- curPunc = "|";
- return null;
- } else if (/[\(\)\[\]{}\\;]/.test(ch)) {
- curPunc = ch;
- return null;
- } else if (ch == "-" && stream.eat(">")) {
- return "arrow";
- } else if (/[=+\-\/*:\.^%<>~|]/.test(ch)) {
- var more = stream.eatWhile(/[=+\-\/*:\.^%<>~|]/);
- if (ch == "." && !more) curPunc = ".";
- return "operator";
- } else {
- return null;
- }
- }
- function tokenBaseUntilBrace(depth) {
- if (!depth) depth = 1;
- return function(stream, state) {
- if (stream.peek() == "}") {
- if (depth == 1) {
- state.tokenize.pop();
- return state.tokenize[state.tokenize.length-1](stream, state);
- } else {
- state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth - 1);
- }
- } else if (stream.peek() == "{") {
- state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth + 1);
- }
- return tokenBase(stream, state);
- };
- }
- function tokenBaseOnce() {
- var alreadyCalled = false;
- return function(stream, state) {
- if (alreadyCalled) {
- state.tokenize.pop();
- return state.tokenize[state.tokenize.length-1](stream, state);
- }
- alreadyCalled = true;
- return tokenBase(stream, state);
- };
- }
- function readQuoted(quote, style, embed, unescaped) {
- return function(stream, state) {
- var escaped = false, ch;
- if (state.context.type === 'read-quoted-paused') {
- state.context = state.context.prev;
- stream.eat("}");
- }
- while ((ch = stream.next()) != null) {
- if (ch == quote && (unescaped || !escaped)) {
- state.tokenize.pop();
- break;
- }
- if (embed && ch == "#" && !escaped) {
- if (stream.eat("{")) {
- if (quote == "}") {
- state.context = {prev: state.context, type: 'read-quoted-paused'};
- }
- state.tokenize.push(tokenBaseUntilBrace());
- break;
- } else if (/[@\$]/.test(stream.peek())) {
- state.tokenize.push(tokenBaseOnce());
- break;
- }
- }
- escaped = !escaped && ch == "\\";
- }
- return style;
- };
- }
- function readHereDoc(phrase) {
- return function(stream, state) {
- if (stream.match(phrase)) state.tokenize.pop();
- else stream.skipToEnd();
- return "string";
- };
- }
- function readBlockComment(stream, state) {
- if (stream.sol() && stream.match("=end") && stream.eol())
- state.tokenize.pop();
- stream.skipToEnd();
- return "comment";
- }
- return {
- startState: function() {
- return {tokenize: [tokenBase],
- indented: 0,
- context: {type: "top", indented: -config.indentUnit},
- continuedLine: false,
- lastTok: null,
- varList: false};
- },
- token: function(stream, state) {
- curPunc = null;
- if (stream.sol()) state.indented = stream.indentation();
- var style = state.tokenize[state.tokenize.length-1](stream, state), kwtype;
- var thisTok = curPunc;
- if (style == "ident") {
- var word = stream.current();
- style = state.lastTok == "." ? "property"
- : keywords.propertyIsEnumerable(stream.current()) ? "keyword"
- : /^[A-Z]/.test(word) ? "tag"
- : (state.lastTok == "def" || state.lastTok == "class" || state.varList) ? "def"
- : "variable";
- if (style == "keyword") {
- thisTok = word;
- if (indentWords.propertyIsEnumerable(word)) kwtype = "indent";
- else if (dedentWords.propertyIsEnumerable(word)) kwtype = "dedent";
- else if ((word == "if" || word == "unless") && stream.column() == stream.indentation())
- kwtype = "indent";
- else if (word == "do" && state.context.indented < state.indented)
- kwtype = "indent";
- }
- }
- if (curPunc || (style && style != "comment")) state.lastTok = thisTok;
- if (curPunc == "|") state.varList = !state.varList;
- if (kwtype == "indent" || /[\(\[\{]/.test(curPunc))
- state.context = {prev: state.context, type: curPunc || style, indented: state.indented};
- else if ((kwtype == "dedent" || /[\)\]\}]/.test(curPunc)) && state.context.prev)
- state.context = state.context.prev;
- if (stream.eol())
- state.continuedLine = (curPunc == "\\" || style == "operator");
- return style;
- },
- indent: function(state, textAfter) {
- if (state.tokenize[state.tokenize.length-1] != tokenBase) return 0;
- var firstChar = textAfter && textAfter.charAt(0);
- var ct = state.context;
- var closing = ct.type == matching[firstChar] ||
- ct.type == "keyword" && /^(?:end|until|else|elsif|when|rescue)\b/.test(textAfter);
- return ct.indented + (closing ? 0 : config.indentUnit) +
- (state.continuedLine ? config.indentUnit : 0);
- },
- electricInput: /^\s*(?:end|rescue|\})$/,
- lineComment: "#"
- };
- });
- CodeMirror.defineMIME("text/x-ruby", "ruby");
- });
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