1 files changed, 139 insertions, 0 deletions

diff --git a/imports/codemirror/mode/smalltalk/smalltalk.js b/imports/codemirror/mode/smalltalk/smalltalk.js
new file mode 100755
index 00000000..e002e666
--- /dev/null
+++ b/imports/codemirror/mode/smalltalk/smalltalk.js
@@ -0,0 +1,139 @@
+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 char = stream.next();
+
+                if (char === '"') {
+                        token = nextComment(stream, new Context(nextComment, context));
+
+                } else if (char === '\'') {
+                        token = nextString(stream, new Context(nextString, context));
+
+                } else if (char === '#') {
+                        stream.eatWhile(/[^ .]/);
+                        token.name = 'string-2';
+
+                } else if (char === '$') {
+                        stream.eatWhile(/[^ ]/);
+                        token.name = 'string-2';
+
+                } else if (char === '|' && state.expectVariable) {
+                        token.context = new Context(nextTemporaries, context);
+
+                } else if (/[\[\]{}()]/.test(char)) {
+                        token.name = 'bracket';
+                        token.eos = /[\[{(]/.test(char);
+
+                        if (char === '[') {
+                                state.indentation++;
+                        } else if (char === ']') {
+                                state.indentation = Math.max(0, state.indentation - 1);
+                        }
+
+                } else if (specialChars.test(char)) {
+                        stream.eatWhile(specialChars);
+                        token.name = 'operator';
+                        token.eos = char !== ';'; // ; cascaded message expression
+
+                } else if (/\d/.test(char)) {
+                        stream.eatWhile(/[\w\d]/);
+                        token.name = 'number'
+
+                } else if (/[\w_]/.test(char)) {
+                        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 char = stream.next();
+
+                if (char === '|') {
+                        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'});
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