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