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CodeMirror.defineMode("smalltalk", function(config, parserConfig) {
var keywords = {"true": 1, "false": 1, nil: 1, self: 1, "super": 1, thisContext: 1};
var indentUnit = config.indentUnit;
function chain(stream, state, f) {
state.tokenize = f;
return f(stream, state);
}
var type;
function ret(tp, style) {
type = tp;
return style;
}
function tokenBase(stream, state) {
var ch = stream.next();
if (ch == '"')
return chain(stream, state, tokenComment(ch));
else if (ch == "'")
return chain(stream, state, tokenString(ch));
else if (ch == "#") {
stream.eatWhile(/[\w\$_]/);
return ret("string", "string");
}
else if (/\d/.test(ch)) {
stream.eatWhile(/[\w\.]/)
return ret("number", "number");
}
else if (/[\[\]()]/.test(ch)) {
return ret(ch, null);
}
else {
stream.eatWhile(/[\w\$_]/);
if (keywords && keywords.propertyIsEnumerable(stream.current())) return ret("keyword", "keyword");
return ret("word", "variable");
}
}
function tokenString(quote) {
return function(stream, state) {
var escaped = false, next, end = false;
while ((next = stream.next()) != null) {
if (next == quote && !escaped) {end = true; break;}
escaped = !escaped && next == "\\";
}
if (end || !(escaped))
state.tokenize = tokenBase;
return ret("string", "string");
};
}
function tokenComment(quote) {
return function(stream, state) {
var next, end = false;
while ((next = stream.next()) != null) {
if (next == quote) {end = true; break;}
}
if (end)
state.tokenize = tokenBase;
return ret("comment", "comment");
};
}
function Context(indented, column, type, align, prev) {
this.indented = indented;
this.column = column;
this.type = type;
this.align = align;
this.prev = prev;
}
function pushContext(state, col, type) {
return state.context = new Context(state.indented, col, type, null, state.context);
}
function popContext(state) {
return state.context = state.context.prev;
}
// Interface
return {
startState: function(basecolumn) {
return {
tokenize: tokenBase,
context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
indented: 0,
startOfLine: true
};
},
token: function(stream, state) {
var ctx = state.context;
if (stream.sol()) {
if (ctx.align == null) ctx.align = false;
state.indented = stream.indentation();
state.startOfLine = true;
}
if (stream.eatSpace()) return null;
var style = state.tokenize(stream, state);
if (type == "comment") return style;
if (ctx.align == null) ctx.align = true;
if (type == "[") pushContext(state, stream.column(), "]");
else if (type == "(") pushContext(state, stream.column(), ")");
else if (type == ctx.type) popContext(state);
state.startOfLine = false;
return style;
},
indent: function(state, textAfter) {
if (state.tokenize != tokenBase) return 0;
var firstChar = textAfter && textAfter.charAt(0), ctx = state.context, closing = firstChar == ctx.type;
if (ctx.align) return ctx.column + (closing ? 0 : 1);
else return ctx.indented + (closing ? 0 : indentUnit);
},
electricChars: "]"
};
});
CodeMirror.defineMIME("text/x-stsrc", {name: "smalltalk"});
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