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// TODO number prefixes
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(function() {
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// Really primitive kill-ring implementation.
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var killRing = [];
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function addToRing(str) {
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killRing.push(str);
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if (killRing.length > 50) killRing.shift();
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}
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function getFromRing() { return killRing[killRing.length - 1] || ""; }
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function popFromRing() { if (killRing.length > 1) killRing.pop(); return getFromRing(); }
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CodeMirror.keyMap.emacs = {
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"Ctrl-X": function(cm) {cm.setOption("keyMap", "emacs-Ctrl-X");},
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"Ctrl-W": function(cm) {addToRing(cm.getSelection()); cm.replaceSelection("");},
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"Ctrl-Alt-W": function(cm) {addToRing(cm.getSelection()); cm.replaceSelection("");},
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"Alt-W": function(cm) {addToRing(cm.getSelection());},
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"Ctrl-Y": function(cm) {cm.replaceSelection(getFromRing());},
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"Alt-Y": function(cm) {cm.replaceSelection(popFromRing());},
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"Ctrl-/": "undo", "Shift-Ctrl--": "undo", "Shift-Alt-,": "goDocStart", "Shift-Alt-.": "goDocEnd",
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"Ctrl-S": "findNext", "Ctrl-R": "findPrev", "Ctrl-G": "clearSearch", "Shift-Alt-5": "replace",
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"Ctrl-Z": "undo", "Cmd-Z": "undo", "Alt-/": "autocomplete",
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fallthrough: ["basic", "emacsy"]
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};
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CodeMirror.keyMap["emacs-Ctrl-X"] = {
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"Ctrl-S": "save", "Ctrl-W": "save", "S": "saveAll", "F": "open", "U": "undo", "K": "close",
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auto: "emacs", nofallthrough: true
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};
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})();
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