rosa-build/vendor/assets/javascripts/codemirror/keymaps/emacs.js

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