CodeMirror.defineMode('smalltalk', function(config, modeConfig) { var specialChars = /[+\-/\\*~<>=@%|&?!.:;^]/; var keywords = /true|false|nil|self|super|thisContext/; var Context = function(tokenizer, parent) { this.next = tokenizer; this.parent = parent; }; var Token = function(name, context, eos) { this.name = name; this.context = context; this.eos = eos; }; var State = function() { this.context = new Context(next, null); this.expectVariable = true; this.indentation = 0; this.userIndentationDelta = 0; }; State.prototype.userIndent = function(indentation) { this.userIndentationDelta = indentation > 0 ? (indentation / config.indentUnit - this.indentation) : 0; }; var next = function(stream, context, state) { var token = new Token(null, context, false); var aChar = stream.next(); if (aChar === '"') { token = nextComment(stream, new Context(nextComment, context)); } else if (aChar === '\'') { token = nextString(stream, new Context(nextString, context)); } else if (aChar === '#') { stream.eatWhile(/[^ .]/); token.name = 'string-2'; } else if (aChar === '$') { stream.eatWhile(/[^ ]/); token.name = 'string-2'; } else if (aChar === '|' && state.expectVariable) { token.context = new Context(nextTemporaries, context); } else if (/[\[\]{}()]/.test(aChar)) { token.name = 'bracket'; token.eos = /[\[{(]/.test(aChar); if (aChar === '[') { state.indentation++; } else if (aChar === ']') { state.indentation = Math.max(0, state.indentation - 1); } } else if (specialChars.test(aChar)) { stream.eatWhile(specialChars); token.name = 'operator'; token.eos = aChar !== ';'; // ; cascaded message expression } else if (/\d/.test(aChar)) { stream.eatWhile(/[\w\d]/); token.name = 'number'; } else if (/[\w_]/.test(aChar)) { stream.eatWhile(/[\w\d_]/); token.name = state.expectVariable ? (keywords.test(stream.current()) ? 'keyword' : 'variable') : null; } else { token.eos = state.expectVariable; } return token; }; var nextComment = function(stream, context) { stream.eatWhile(/[^"]/); return new Token('comment', stream.eat('"') ? context.parent : context, true); }; var nextString = function(stream, context) { stream.eatWhile(/[^']/); return new Token('string', stream.eat('\'') ? context.parent : context, false); }; var nextTemporaries = function(stream, context, state) { var token = new Token(null, context, false); var aChar = stream.next(); if (aChar === '|') { token.context = context.parent; token.eos = true; } else { stream.eatWhile(/[^|]/); token.name = 'variable'; } return token; }; return { startState: function() { return new State; }, token: function(stream, state) { state.userIndent(stream.indentation()); if (stream.eatSpace()) { return null; } var token = state.context.next(stream, state.context, state); state.context = token.context; state.expectVariable = token.eos; state.lastToken = token; return token.name; }, blankLine: function(state) { state.userIndent(0); }, indent: function(state, textAfter) { var i = state.context.next === next && textAfter && textAfter.charAt(0) === ']' ? -1 : state.userIndentationDelta; return (state.indentation + i) * config.indentUnit; }, electricChars: ']' }; }); CodeMirror.defineMIME('text/x-stsrc', {name: 'smalltalk'});