--- /dev/null
+(function() {
+ "use strict";
+
+ var Pos = CodeMirror.Pos;
+ function posEq(a, b) { return a.line == b.line && a.ch == b.ch; }
+
+ // Kill 'ring'
+
+ var killRing = [];
+ function addToRing(str) {
+ killRing.push(str);
+ if (killRing.length > 50) killRing.shift();
+ }
+ function growRingTop(str) {
+ if (!killRing.length) return addToRing(str);
+ killRing[killRing.length - 1] += str;
+ }
+ function getFromRing(n) { return killRing[killRing.length - (n ? Math.min(n, 1) : 1)] || ""; }
+ function popFromRing() { if (killRing.length > 1) killRing.pop(); return getFromRing(); }
+
+ var lastKill = null;
+
+ function kill(cm, from, to, mayGrow, text) {
+ if (text == null) text = cm.getRange(from, to);
+
+ if (mayGrow && lastKill && lastKill.cm == cm && posEq(from, lastKill.pos) && cm.isClean(lastKill.gen))
+ growRingTop(text);
+ else
+ addToRing(text);
+ cm.replaceRange("", from, to, "+delete");
+
+ if (mayGrow) lastKill = {cm: cm, pos: from, gen: cm.changeGeneration()};
+ else lastKill = null;
+ }
+
+ // Boundaries of various units
+
+ function byChar(cm, pos, dir) {
+ return cm.findPosH(pos, dir, "char", true);
+ }
+
+ function byWord(cm, pos, dir) {
+ return cm.findPosH(pos, dir, "word", true);
+ }
+
+ function byLine(cm, pos, dir) {
+ return cm.findPosV(pos, dir, "line", cm.doc.sel.goalColumn);
+ }
+
+ function byPage(cm, pos, dir) {
+ return cm.findPosV(pos, dir, "page", cm.doc.sel.goalColumn);
+ }
+
+ function byParagraph(cm, pos, dir) {
+ var no = pos.line, line = cm.getLine(no);
+ var sawText = /\S/.test(dir < 0 ? line.slice(0, pos.ch) : line.slice(pos.ch));
+ var fst = cm.firstLine(), lst = cm.lastLine();
+ for (;;) {
+ no += dir;
+ if (no < fst || no > lst)
+ return cm.clipPos(Pos(no - dir, dir < 0 ? 0 : null));
+ line = cm.getLine(no);
+ var hasText = /\S/.test(line);
+ if (hasText) sawText = true;
+ else if (sawText) return Pos(no, 0);
+ }
+ }
+
+ function bySentence(cm, pos, dir) {
+ var line = pos.line, ch = pos.ch;
+ var text = cm.getLine(pos.line), sawWord = false;
+ for (;;) {
+ var next = text.charAt(ch + (dir < 0 ? -1 : 0));
+ if (!next) { // End/beginning of line reached
+ if (line == (dir < 0 ? cm.firstLine() : cm.lastLine())) return Pos(line, ch);
+ text = cm.getLine(line + dir);
+ if (!/\S/.test(text)) return Pos(line, ch);
+ line += dir;
+ ch = dir < 0 ? text.length : 0;
+ continue;
+ }
+ if (sawWord && /[!?.]/.test(next)) return Pos(line, ch + (dir > 0 ? 1 : 0));
+ if (!sawWord) sawWord = /\w/.test(next);
+ ch += dir;
+ }
+ }
+
+ function byExpr(cm, pos, dir) {
+ var wrap;
+ if (cm.findMatchingBracket && (wrap = cm.findMatchingBracket(pos, true))
+ && wrap.match && (wrap.forward ? 1 : -1) == dir)
+ return dir > 0 ? Pos(wrap.to.line, wrap.to.ch + 1) : wrap.to;
+
+ for (var first = true;; first = false) {
+ var token = cm.getTokenAt(pos);
+ var after = Pos(pos.line, dir < 0 ? token.start : token.end);
+ if (first && dir > 0 && token.end == pos.ch || !/\w/.test(token.string)) {
+ var newPos = cm.findPosH(after, dir, "char");
+ if (posEq(after, newPos)) return pos;
+ else pos = newPos;
+ } else {
+ return after;
+ }
+ }
+ }
+
+ // Prefixes (only crudely supported)
+
+ function getPrefix(cm, precise) {
+ var digits = cm.state.emacsPrefix;
+ if (!digits) return precise ? null : 1;
+ clearPrefix(cm);
+ return digits == "-" ? -1 : Number(digits);
+ }
+
+ function repeated(cmd) {
+ var f = typeof cmd == "string" ? function(cm) { cm.execCommand(cmd); } : cmd;
+ return function(cm) {
+ var prefix = getPrefix(cm);
+ f(cm);
+ for (var i = 1; i < prefix; ++i) f(cm);
+ };
+ }
+
+ function findEnd(cm, by, dir) {
+ var pos = cm.getCursor(), prefix = getPrefix(cm);
+ if (prefix < 0) { dir = -dir; prefix = -prefix; }
+ for (var i = 0; i < prefix; ++i) {
+ var newPos = by(cm, pos, dir);
+ if (posEq(newPos, pos)) break;
+ pos = newPos;
+ }
+ return pos;
+ }
+
+ function move(by, dir) {
+ var f = function(cm) {
+ cm.extendSelection(findEnd(cm, by, dir));
+ };
+ f.motion = true;
+ return f;
+ }
+
+ function killTo(cm, by, dir) {
+ kill(cm, cm.getCursor(), findEnd(cm, by, dir), true);
+ }
+
+ function addPrefix(cm, digit) {
+ if (cm.state.emacsPrefix) {
+ if (digit != "-") cm.state.emacsPrefix += digit;
+ return;
+ }
+ // Not active yet
+ cm.state.emacsPrefix = digit;
+ cm.on("keyHandled", maybeClearPrefix);
+ cm.on("inputRead", maybeDuplicateInput);
+ }
+
+ var prefixPreservingKeys = {"Alt-G": true, "Ctrl-X": true, "Ctrl-Q": true, "Ctrl-U": true};
+
+ function maybeClearPrefix(cm, arg) {
+ if (!cm.state.emacsPrefixMap && !prefixPreservingKeys.hasOwnProperty(arg))
+ clearPrefix(cm);
+ }
+
+ function clearPrefix(cm) {
+ cm.state.emacsPrefix = null;
+ cm.off("keyHandled", maybeClearPrefix);
+ cm.off("inputRead", maybeDuplicateInput);
+ }
+
+ function maybeDuplicateInput(cm, event) {
+ var dup = getPrefix(cm);
+ if (dup > 1 && event.origin == "+input") {
+ var one = event.text.join("\n"), txt = "";
+ for (var i = 1; i < dup; ++i) txt += one;
+ cm.replaceSelection(txt, "end", "+input");
+ }
+ }
+
+ function addPrefixMap(cm) {
+ cm.state.emacsPrefixMap = true;
+ cm.addKeyMap(prefixMap);
+ cm.on("keyHandled", maybeRemovePrefixMap);
+ cm.on("inputRead", maybeRemovePrefixMap);
+ }
+
+ function maybeRemovePrefixMap(cm, arg) {
+ if (typeof arg == "string" && (/^\d$/.test(arg) || arg == "Ctrl-U")) return;
+ cm.removeKeyMap(prefixMap);
+ cm.state.emacsPrefixMap = false;
+ cm.off("keyHandled", maybeRemovePrefixMap);
+ cm.off("inputRead", maybeRemovePrefixMap);
+ }
+
+ // Utilities
+
+ function setMark(cm) {
+ cm.setCursor(cm.getCursor());
+ cm.setExtending(true);
+ cm.on("change", function() { cm.setExtending(false); });
+ }
+
+ function getInput(cm, msg, f) {
+ if (cm.openDialog)
+ cm.openDialog(msg + ": <input type=\"text\" style=\"width: 10em\"/>", f, {bottom: true});
+ else
+ f(prompt(msg, ""));
+ }
+
+ function operateOnWord(cm, op) {
+ var start = cm.getCursor(), end = cm.findPosH(start, 1, "word");
+ cm.replaceRange(op(cm.getRange(start, end)), start, end);
+ cm.setCursor(end);
+ }
+
+ function toEnclosingExpr(cm) {
+ var pos = cm.getCursor(), line = pos.line, ch = pos.ch;
+ var stack = [];
+ while (line >= cm.firstLine()) {
+ var text = cm.getLine(line);
+ for (var i = ch == null ? text.length : ch; i > 0;) {
+ var ch = text.charAt(--i);
+ if (ch == ")")
+ stack.push("(");
+ else if (ch == "]")
+ stack.push("[");
+ else if (ch == "}")
+ stack.push("{");
+ else if (/[\(\{\[]/.test(ch) && (!stack.length || stack.pop() != ch))
+ return cm.extendSelection(Pos(line, i));
+ }
+ --line; ch = null;
+ }
+ }
+
+ // Actual keymap
+
+ var keyMap = CodeMirror.keyMap.emacs = {
+ "Ctrl-W": function(cm) {kill(cm, cm.getCursor("start"), cm.getCursor("end"));},
+ "Ctrl-K": repeated(function(cm) {
+ var start = cm.getCursor(), end = cm.clipPos(Pos(start.line));
+ var text = cm.getRange(start, end);
+ if (!/\S/.test(text)) {
+ text += "\n";
+ end = Pos(start.line + 1, 0);
+ }
+ kill(cm, start, end, true, text);
+ }),
+ "Alt-W": function(cm) {
+ addToRing(cm.getSelection());
+ },
+ "Ctrl-Y": function(cm) {
+ var start = cm.getCursor();
+ cm.replaceRange(getFromRing(getPrefix(cm)), start, start, "paste");
+ cm.setSelection(start, cm.getCursor());
+ },
+ "Alt-Y": function(cm) {cm.replaceSelection(popFromRing());},
+
+ "Ctrl-Space": setMark, "Ctrl-Shift-2": setMark,
+
+ "Ctrl-F": move(byChar, 1), "Ctrl-B": move(byChar, -1),
+ "Right": move(byChar, 1), "Left": move(byChar, -1),
+ "Ctrl-D": function(cm) { killTo(cm, byChar, 1); },
+ "Delete": function(cm) { killTo(cm, byChar, 1); },
+ "Ctrl-H": function(cm) { killTo(cm, byChar, -1); },
+ "Backspace": function(cm) { killTo(cm, byChar, -1); },
+
+ "Alt-F": move(byWord, 1), "Alt-B": move(byWord, -1),
+ "Alt-D": function(cm) { killTo(cm, byWord, 1); },
+ "Alt-Backspace": function(cm) { killTo(cm, byWord, -1); },
+
+ "Ctrl-N": move(byLine, 1), "Ctrl-P": move(byLine, -1),
+ "Down": move(byLine, 1), "Up": move(byLine, -1),
+ "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+ "End": "goLineEnd", "Home": "goLineStart",
+
+ "Alt-V": move(byPage, -1), "Ctrl-V": move(byPage, 1),
+ "PageUp": move(byPage, -1), "PageDown": move(byPage, 1),
+
+ "Ctrl-Up": move(byParagraph, -1), "Ctrl-Down": move(byParagraph, 1),
+
+ "Alt-A": move(bySentence, -1), "Alt-E": move(bySentence, 1),
+ "Alt-K": function(cm) { killTo(cm, bySentence, 1); },
+
+ "Ctrl-Alt-K": function(cm) { killTo(cm, byExpr, 1); },
+ "Ctrl-Alt-Backspace": function(cm) { killTo(cm, byExpr, -1); },
+ "Ctrl-Alt-F": move(byExpr, 1), "Ctrl-Alt-B": move(byExpr, -1),
+
+ "Shift-Ctrl-Alt-2": function(cm) {
+ cm.setSelection(findEnd(cm, byExpr, 1), cm.getCursor());
+ },
+ "Ctrl-Alt-T": function(cm) {
+ var leftStart = byExpr(cm, cm.getCursor(), -1), leftEnd = byExpr(cm, leftStart, 1);
+ var rightEnd = byExpr(cm, leftEnd, 1), rightStart = byExpr(cm, rightEnd, -1);
+ cm.replaceRange(cm.getRange(rightStart, rightEnd) + cm.getRange(leftEnd, rightStart) +
+ cm.getRange(leftStart, leftEnd), leftStart, rightEnd);
+ },
+ "Ctrl-Alt-U": repeated(toEnclosingExpr),
+
+ "Alt-Space": function(cm) {
+ var pos = cm.getCursor(), from = pos.ch, to = pos.ch, text = cm.getLine(pos.line);
+ while (from && /\s/.test(text.charAt(from - 1))) --from;
+ while (to < text.length && /\s/.test(text.charAt(to))) ++to;
+ cm.replaceRange(" ", Pos(pos.line, from), Pos(pos.line, to));
+ },
+ "Ctrl-O": repeated(function(cm) { cm.replaceSelection("\n", "start"); }),
+ "Ctrl-T": repeated(function(cm) {
+ var pos = cm.getCursor();
+ if (pos.ch < cm.getLine(pos.line).length) pos = Pos(pos.line, pos.ch + 1);
+ var from = cm.findPosH(pos, -2, "char");
+ var range = cm.getRange(from, pos);
+ if (range.length != 2) return;
+ cm.setSelection(from, pos);
+ cm.replaceSelection(range.charAt(1) + range.charAt(0), "end");
+ }),
+
+ "Alt-C": repeated(function(cm) {
+ operateOnWord(cm, function(w) {
+ var letter = w.search(/\w/);
+ if (letter == -1) return w;
+ return w.slice(0, letter) + w.charAt(letter).toUpperCase() + w.slice(letter + 1).toLowerCase();
+ });
+ }),
+ "Alt-U": repeated(function(cm) {
+ operateOnWord(cm, function(w) { return w.toUpperCase(); });
+ }),
+ "Alt-L": repeated(function(cm) {
+ operateOnWord(cm, function(w) { return w.toLowerCase(); });
+ }),
+
+ "Alt-;": "toggleComment",
+
+ "Ctrl-/": repeated("undo"), "Shift-Ctrl--": repeated("undo"),
+ "Ctrl-Z": repeated("undo"), "Cmd-Z": repeated("undo"),
+ "Shift-Alt-,": "goDocStart", "Shift-Alt-.": "goDocEnd",
+ "Ctrl-S": "findNext", "Ctrl-R": "findPrev", "Ctrl-G": "clearSearch", "Shift-Alt-5": "replace",
+ "Alt-/": "autocomplete",
+ "Ctrl-J": "newlineAndIndent", "Enter": false, "Tab": "indentAuto",
+
+ "Alt-G": function(cm) {cm.setOption("keyMap", "emacs-Alt-G");},
+ "Ctrl-X": function(cm) {cm.setOption("keyMap", "emacs-Ctrl-X");},
+ "Ctrl-Q": function(cm) {cm.setOption("keyMap", "emacs-Ctrl-Q");},
+ "Ctrl-U": addPrefixMap
+ };
+
+ CodeMirror.keyMap["emacs-Ctrl-X"] = {
+ "Tab": function(cm) {
+ cm.indentSelection(getPrefix(cm, true) || cm.getOption("indentUnit"));
+ },
+ "Ctrl-X": function(cm) {
+ cm.setSelection(cm.getCursor("head"), cm.getCursor("anchor"));
+ },
+
+ "Ctrl-S": "save", "Ctrl-W": "save", "S": "saveAll", "F": "open", "U": repeated("undo"), "K": "close",
+ "Delete": function(cm) { kill(cm, cm.getCursor(), sentenceEnd(cm, 1), true); },
+ auto: "emacs", nofallthrough: true, disableInput: true
+ };
+
+ CodeMirror.keyMap["emacs-Alt-G"] = {
+ "G": function(cm) {
+ var prefix = getPrefix(cm, true);
+ if (prefix != null && prefix > 0) return cm.setCursor(prefix - 1);
+
+ getInput(cm, "Goto line", function(str) {
+ var num;
+ if (str && !isNaN(num = Number(str)) && num == num|0 && num > 0)
+ cm.setCursor(num - 1);
+ });
+ },
+ auto: "emacs", nofallthrough: true, disableInput: true
+ };
+
+ CodeMirror.keyMap["emacs-Ctrl-Q"] = {
+ "Tab": repeated("insertTab"),
+ auto: "emacs", nofallthrough: true
+ };
+
+ var prefixMap = {"Ctrl-G": clearPrefix};
+ function regPrefix(d) {
+ prefixMap[d] = function(cm) { addPrefix(cm, d); };
+ keyMap["Ctrl-" + d] = function(cm) { addPrefix(cm, d); };
+ prefixPreservingKeys["Ctrl-" + d] = true;
+ }
+ for (var i = 0; i < 10; ++i) regPrefix(String(i));
+ regPrefix("-");
+})();
git://git.onelab.eu / myslice.git / blobdiff