// CodeMirror version 2.2 // // All functions that need access to the editor's state live inside // the CodeMirror function. Below that, at the bottom of the file, // some utilities are defined. // CodeMirror is the only global var we claim var CodeMirror = (function() { // This is the function that produces an editor instance. It's // closure is used to store the editor state. function CodeMirror(place, givenOptions) { // Determine effective options based on given values and defaults. var options = {}, defaults = CodeMirror.defaults; for (var opt in defaults) if (defaults.hasOwnProperty(opt)) options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt]; var targetDocument = options["document"]; // The element in which the editor lives. var wrapper = targetDocument.createElement("div"); wrapper.className = "CodeMirror" + (options.lineWrapping ? " CodeMirror-wrap" : ""); // This mess creates the base DOM structure for the editor. wrapper.innerHTML = '
' + // Wraps and hides input textarea '
' + '
' + '
' + // Set to the height of the text, causes scrolling '
' + // Moved around its parent to cover visible view '
' + // Provides positioning relative to (visible) text origin '
' + '
' + '
 
' + // Absolutely positioned blinky cursor '
' + // This DIV contains the actual code '
'; if (place.appendChild) place.appendChild(wrapper); else place(wrapper); // I've never seen more elegant code in my life. var inputDiv = wrapper.firstChild, input = inputDiv.firstChild, scroller = wrapper.lastChild, code = scroller.firstChild, mover = code.firstChild, gutter = mover.firstChild, gutterText = gutter.firstChild, lineSpace = gutter.nextSibling.firstChild, measure = lineSpace.firstChild, cursor = measure.nextSibling, lineDiv = cursor.nextSibling; themeChanged(); // Needed to hide big blue blinking cursor on Mobile Safari if (/AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent)) input.style.width = "0px"; if (!webkit) lineSpace.draggable = true; if (options.tabindex != null) input.tabIndex = options.tabindex; if (!options.gutter && !options.lineNumbers) gutter.style.display = "none"; // Check for problem with IE innerHTML not working when we have a // P (or similar) parent node. try { stringWidth("x"); } catch (e) { if (e.message.match(/runtime/i)) e = new Error("A CodeMirror inside a P-style element does not work in Internet Explorer. (innerHTML bug)"); throw e; } // Delayed object wrap timeouts, making sure only one is active. blinker holds an interval. var poll = new Delayed(), highlight = new Delayed(), blinker; // mode holds a mode API object. doc is the tree of Line objects, // work an array of lines that should be parsed, and history the // undo history (instance of History constructor). var mode, doc = new BranchChunk([new LeafChunk([new Line("")])]), work, focused; loadMode(); // The selection. These are always maintained to point at valid // positions. Inverted is used to remember that the user is // selecting bottom-to-top. var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false}; // Selection-related flags. shiftSelecting obviously tracks // whether the user is holding shift. var shiftSelecting, lastClick, lastDoubleClick, draggingText, overwrite = false; // Variables used by startOperation/endOperation to track what // happened during the operation. var updateInput, userSelChange, changes, textChanged, selectionChanged, leaveInputAlone, gutterDirty, callbacks; // Current visible range (may be bigger than the view window). var displayOffset = 0, showingFrom = 0, showingTo = 0, lastSizeC = 0; // bracketHighlighted is used to remember that a backet has been // marked. var bracketHighlighted; // Tracks the maximum line length so that the horizontal scrollbar // can be kept static when scrolling. var maxLine = "", maxWidth, tabText = computeTabText(); // Initialize the content. operation(function(){setValue(options.value || ""); updateInput = false;})(); var history = new History(); // Register our event handlers. connect(scroller, "mousedown", operation(onMouseDown)); connect(scroller, "dblclick", operation(onDoubleClick)); connect(lineSpace, "dragstart", onDragStart); connect(lineSpace, "selectstart", e_preventDefault); // Gecko browsers fire contextmenu *after* opening the menu, at // which point we can't mess with it anymore. Context menu is // handled in onMouseDown for Gecko. if (!gecko) connect(scroller, "contextmenu", onContextMenu); connect(scroller, "scroll", function() { updateDisplay([]); if (options.fixedGutter) gutter.style.left = scroller.scrollLeft + "px"; if (options.onScroll) options.onScroll(instance); }); connect(window, "resize", function() {updateDisplay(true);}); connect(input, "keyup", operation(onKeyUp)); connect(input, "input", fastPoll); connect(input, "keydown", operation(onKeyDown)); connect(input, "keypress", operation(onKeyPress)); connect(input, "focus", onFocus); connect(input, "blur", onBlur); connect(scroller, "dragenter", e_stop); connect(scroller, "dragover", e_stop); connect(scroller, "drop", operation(onDrop)); connect(scroller, "paste", function(){focusInput(); fastPoll();}); connect(input, "paste", fastPoll); connect(input, "cut", operation(function(){replaceSelection("");})); // IE throws unspecified error in certain cases, when // trying to access activeElement before onload var hasFocus; try { hasFocus = (targetDocument.activeElement == input); } catch(e) { } if (hasFocus) setTimeout(onFocus, 20); else onBlur(); function isLine(l) {return l >= 0 && l < doc.size;} // The instance object that we'll return. Mostly calls out to // local functions in the CodeMirror function. Some do some extra // range checking and/or clipping. operation is used to wrap the // call so that changes it makes are tracked, and the display is // updated afterwards. var instance = wrapper.CodeMirror = { getValue: getValue, setValue: operation(setValue), getSelection: getSelection, replaceSelection: operation(replaceSelection), focus: function(){focusInput(); onFocus(); fastPoll();}, setOption: function(option, value) { var oldVal = options[option]; options[option] = value; if (option == "mode" || option == "indentUnit") loadMode(); else if (option == "readOnly" && value) {onBlur(); input.blur();} else if (option == "theme") themeChanged(); else if (option == "lineWrapping" && oldVal != value) operation(wrappingChanged)(); else if (option == "tabSize") operation(tabsChanged)(); if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber" || option == "theme") operation(gutterChanged)(); }, getOption: function(option) {return options[option];}, undo: operation(undo), redo: operation(redo), indentLine: operation(function(n, dir) { if (isLine(n)) indentLine(n, dir == null ? "smart" : dir ? "add" : "subtract"); }), indentSelection: operation(indentSelected), historySize: function() {return {undo: history.done.length, redo: history.undone.length};}, clearHistory: function() {history = new History();}, matchBrackets: operation(function(){matchBrackets(true);}), getTokenAt: operation(function(pos) { pos = clipPos(pos); return getLine(pos.line).getTokenAt(mode, getStateBefore(pos.line), pos.ch); }), getStateAfter: function(line) { line = clipLine(line == null ? doc.size - 1: line); return getStateBefore(line + 1); }, cursorCoords: function(start){ if (start == null) start = sel.inverted; return pageCoords(start ? sel.from : sel.to); }, charCoords: function(pos){return pageCoords(clipPos(pos));}, coordsChar: function(coords) { var off = eltOffset(lineSpace); return coordsChar(coords.x - off.left, coords.y - off.top); }, markText: operation(markText), setBookmark: setBookmark, setMarker: operation(addGutterMarker), clearMarker: operation(removeGutterMarker), setLineClass: operation(setLineClass), hideLine: operation(function(h) {return setLineHidden(h, true);}), showLine: operation(function(h) {return setLineHidden(h, false);}), onDeleteLine: function(line, f) { if (typeof line == "number") { if (!isLine(line)) return null; line = getLine(line); } (line.handlers || (line.handlers = [])).push(f); return line; }, lineInfo: lineInfo, addWidget: function(pos, node, scroll, vert, horiz) { pos = localCoords(clipPos(pos)); var top = pos.yBot, left = pos.x; node.style.position = "absolute"; code.appendChild(node); if (vert == "over") top = pos.y; else if (vert == "near") { var vspace = Math.max(scroller.offsetHeight, doc.height * textHeight()), hspace = Math.max(code.clientWidth, lineSpace.clientWidth) - paddingLeft(); if (pos.yBot + node.offsetHeight > vspace && pos.y > node.offsetHeight) top = pos.y - node.offsetHeight; if (left + node.offsetWidth > hspace) left = hspace - node.offsetWidth; } node.style.top = (top + paddingTop()) + "px"; node.style.left = node.style.right = ""; if (horiz == "right") { left = code.clientWidth - node.offsetWidth; node.style.right = "0px"; } else { if (horiz == "left") left = 0; else if (horiz == "middle") left = (code.clientWidth - node.offsetWidth) / 2; node.style.left = (left + paddingLeft()) + "px"; } if (scroll) scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight); }, lineCount: function() {return doc.size;}, clipPos: clipPos, getCursor: function(start) { if (start == null) start = sel.inverted; return copyPos(start ? sel.from : sel.to); }, somethingSelected: function() {return !posEq(sel.from, sel.to);}, setCursor: operation(function(line, ch, user) { if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch, user); else setCursor(line, ch, user); }), setSelection: operation(function(from, to, user) { (user ? setSelectionUser : setSelection)(clipPos(from), clipPos(to || from)); }), getLine: function(line) {if (isLine(line)) return getLine(line).text;}, getLineHandle: function(line) {if (isLine(line)) return getLine(line);}, setLine: operation(function(line, text) { if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: getLine(line).text.length}); }), removeLine: operation(function(line) { if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0})); }), replaceRange: operation(replaceRange), getRange: function(from, to) {return getRange(clipPos(from), clipPos(to));}, execCommand: function(cmd) {return commands[cmd](instance);}, // Stuff used by commands, probably not much use to outside code. moveH: operation(moveH), deleteH: operation(deleteH), moveV: operation(moveV), toggleOverwrite: function() {overwrite = !overwrite;}, posFromIndex: function(off) { var lineNo = 0, ch; doc.iter(0, doc.size, function(line) { var sz = line.text.length + 1; if (sz > off) { ch = off; return true; } off -= sz; ++lineNo; }); return clipPos({line: lineNo, ch: ch}); }, indexFromPos: function (coords) { if (coords.line < 0 || coords.ch < 0) return 0; var index = coords.ch; doc.iter(0, coords.line, function (line) { index += line.text.length + 1; }); return index; }, operation: function(f){return operation(f)();}, refresh: function(){updateDisplay(true);}, getInputField: function(){return input;}, getWrapperElement: function(){return wrapper;}, getScrollerElement: function(){return scroller;}, getGutterElement: function(){return gutter;} }; function getLine(n) { return getLineAt(doc, n); } function updateLineHeight(line, height) { gutterDirty = true; var diff = height - line.height; for (var n = line; n; n = n.parent) n.height += diff; } function setValue(code) { var top = {line: 0, ch: 0}; updateLines(top, {line: doc.size - 1, ch: getLine(doc.size-1).text.length}, splitLines(code), top, top); updateInput = true; } function getValue(code) { var text = []; doc.iter(0, doc.size, function(line) { text.push(line.text); }); return text.join("\n"); } function onMouseDown(e) { setShift(e.shiftKey); // Check whether this is a click in a widget for (var n = e_target(e); n != wrapper; n = n.parentNode) if (n.parentNode == code && n != mover) return; // See if this is a click in the gutter for (var n = e_target(e); n != wrapper; n = n.parentNode) if (n.parentNode == gutterText) { if (options.onGutterClick) options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom, e); return e_preventDefault(e); } var start = posFromMouse(e); switch (e_button(e)) { case 3: if (gecko && !mac) onContextMenu(e); return; case 2: if (start) setCursor(start.line, start.ch, true); return; } // For button 1, if it was clicked inside the editor // (posFromMouse returning non-null), we have to adjust the // selection. if (!start) {if (e_target(e) == scroller) e_preventDefault(e); return;} if (!focused) onFocus(); var now = +new Date; if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) { e_preventDefault(e); setTimeout(focusInput, 20); return selectLine(start.line); } else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) { lastDoubleClick = {time: now, pos: start}; e_preventDefault(e); return selectWordAt(start); } else { lastClick = {time: now, pos: start}; } var last = start, going; if (dragAndDrop && !posEq(sel.from, sel.to) && !posLess(start, sel.from) && !posLess(sel.to, start)) { // Let the drag handler handle this. if (webkit) lineSpace.draggable = true; var up = connect(targetDocument, "mouseup", operation(function(e2) { if (webkit) lineSpace.draggable = false; draggingText = false; up(); if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) { e_preventDefault(e2); setCursor(start.line, start.ch, true); focusInput(); } }), true); draggingText = true; return; } e_preventDefault(e); setCursor(start.line, start.ch, true); function extend(e) { var cur = posFromMouse(e, true); if (cur && !posEq(cur, last)) { if (!focused) onFocus(); last = cur; setSelectionUser(start, cur); updateInput = false; var visible = visibleLines(); if (cur.line >= visible.to || cur.line < visible.from) going = setTimeout(operation(function(){extend(e);}), 150); } } var move = connect(targetDocument, "mousemove", operation(function(e) { clearTimeout(going); e_preventDefault(e); extend(e); }), true); var up = connect(targetDocument, "mouseup", operation(function(e) { clearTimeout(going); var cur = posFromMouse(e); if (cur) setSelectionUser(start, cur); e_preventDefault(e); focusInput(); updateInput = true; move(); up(); }), true); } function onDoubleClick(e) { for (var n = e_target(e); n != wrapper; n = n.parentNode) if (n.parentNode == gutterText) return e_preventDefault(e); var start = posFromMouse(e); if (!start) return; lastDoubleClick = {time: +new Date, pos: start}; e_preventDefault(e); selectWordAt(start); } function onDrop(e) { e.preventDefault(); var pos = posFromMouse(e, true), files = e.dataTransfer.files; if (!pos || options.readOnly) return; if (files && files.length && window.FileReader && window.File) { function loadFile(file, i) { var reader = new FileReader; reader.onload = function() { text[i] = reader.result; if (++read == n) { pos = clipPos(pos); operation(function() { var end = replaceRange(text.join(""), pos, pos); setSelectionUser(pos, end); })(); } }; reader.readAsText(file); } var n = files.length, text = Array(n), read = 0; for (var i = 0; i < n; ++i) loadFile(files[i], i); } else { try { var text = e.dataTransfer.getData("Text"); if (text) { var end = replaceRange(text, pos, pos); var curFrom = sel.from, curTo = sel.to; setSelectionUser(pos, end); if (draggingText) replaceRange("", curFrom, curTo); focusInput(); } } catch(e){} } } function onDragStart(e) { var txt = getSelection(); // This will reset escapeElement htmlEscape(txt); e.dataTransfer.setDragImage(escapeElement, 0, 0); e.dataTransfer.setData("Text", txt); } function handleKeyBinding(e) { var name = keyNames[e.keyCode], next = keyMap[options.keyMap].auto, bound, dropShift; if (name == null || e.altGraphKey) { if (next) options.keyMap = next; return null; } if (e.altKey) name = "Alt-" + name; if (e.ctrlKey) name = "Ctrl-" + name; if (e.metaKey) name = "Cmd-" + name; if (e.shiftKey && (bound = lookupKey("Shift-" + name, options.extraKeys, options.keyMap))) { dropShift = true; } else { bound = lookupKey(name, options.extraKeys, options.keyMap); } if (typeof bound == "string") { if (commands.propertyIsEnumerable(bound)) bound = commands[bound]; else bound = null; } if (next && (bound || !isModifierKey(e))) options.keyMap = next; if (!bound) return false; if (dropShift) { var prevShift = shiftSelecting; shiftSelecting = null; bound(instance); shiftSelecting = prevShift; } else bound(instance); e_preventDefault(e); return true; } var lastStoppedKey = null; function onKeyDown(e) { if (!focused) onFocus(); var code = e.keyCode; // IE does strange things with escape. if (ie && code == 27) { e.returnValue = false; } setShift(code == 16 || e.shiftKey); // First give onKeyEvent option a chance to handle this. if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return; var handled = handleKeyBinding(e); if (window.opera) { lastStoppedKey = handled ? e.keyCode : null; // Opera has no cut event... we try to at least catch the key combo if (!handled && (mac ? e.metaKey : e.ctrlKey) && e.keyCode == 88) replaceSelection(""); } } function onKeyPress(e) { if (window.opera && e.keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;} if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return; if (window.opera && !e.which && handleKeyBinding(e)) return; if (options.electricChars && mode.electricChars) { var ch = String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode); if (mode.electricChars.indexOf(ch) > -1) setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 75); } fastPoll(); } function onKeyUp(e) { if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return; if (e.keyCode == 16) shiftSelecting = null; } function onFocus() { if (options.readOnly) return; if (!focused) { if (options.onFocus) options.onFocus(instance); focused = true; if (wrapper.className.search(/\bCodeMirror-focused\b/) == -1) wrapper.className += " CodeMirror-focused"; if (!leaveInputAlone) resetInput(true); } slowPoll(); restartBlink(); } function onBlur() { if (focused) { if (options.onBlur) options.onBlur(instance); focused = false; wrapper.className = wrapper.className.replace(" CodeMirror-focused", ""); } clearInterval(blinker); setTimeout(function() {if (!focused) shiftSelecting = null;}, 150); } // Replace the range from from to to by the strings in newText. // Afterwards, set the selection to selFrom, selTo. function updateLines(from, to, newText, selFrom, selTo) { if (history) { var old = []; doc.iter(from.line, to.line + 1, function(line) { old.push(line.text); }); history.addChange(from.line, newText.length, old); while (history.done.length > options.undoDepth) history.done.shift(); } updateLinesNoUndo(from, to, newText, selFrom, selTo); } function unredoHelper(from, to) { var change = from.pop(); if (change) { var replaced = [], end = change.start + change.added; doc.iter(change.start, end, function(line) { replaced.push(line.text); }); to.push({start: change.start, added: change.old.length, old: replaced}); var pos = clipPos({line: change.start + change.old.length - 1, ch: editEnd(replaced[replaced.length-1], change.old[change.old.length-1])}); updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: getLine(end-1).text.length}, change.old, pos, pos); updateInput = true; } } function undo() {unredoHelper(history.done, history.undone);} function redo() {unredoHelper(history.undone, history.done);} function updateLinesNoUndo(from, to, newText, selFrom, selTo) { var recomputeMaxLength = false, maxLineLength = maxLine.length; if (!options.lineWrapping) doc.iter(from.line, to.line, function(line) { if (line.text.length == maxLineLength) {recomputeMaxLength = true; return true;} }); if (from.line != to.line || newText.length > 1) gutterDirty = true; var nlines = to.line - from.line, firstLine = getLine(from.line), lastLine = getLine(to.line); // First adjust the line structure, taking some care to leave highlighting intact. if (from.ch == 0 && to.ch == 0 && newText[newText.length - 1] == "") { // This is a whole-line replace. Treated specially to make // sure line objects move the way they are supposed to. var added = [], prevLine = null; if (from.line) { prevLine = getLine(from.line - 1); prevLine.fixMarkEnds(lastLine); } else lastLine.fixMarkStarts(); for (var i = 0, e = newText.length - 1; i < e; ++i) added.push(Line.inheritMarks(newText[i], prevLine)); if (nlines) doc.remove(from.line, nlines, callbacks); if (added.length) doc.insert(from.line, added); } else if (firstLine == lastLine) { if (newText.length == 1) firstLine.replace(from.ch, to.ch, newText[0]); else { lastLine = firstLine.split(to.ch, newText[newText.length-1]); firstLine.replace(from.ch, null, newText[0]); firstLine.fixMarkEnds(lastLine); var added = []; for (var i = 1, e = newText.length - 1; i < e; ++i) added.push(Line.inheritMarks(newText[i], firstLine)); added.push(lastLine); doc.insert(from.line + 1, added); } } else if (newText.length == 1) { firstLine.replace(from.ch, null, newText[0]); lastLine.replace(null, to.ch, ""); firstLine.append(lastLine); doc.remove(from.line + 1, nlines, callbacks); } else { var added = []; firstLine.replace(from.ch, null, newText[0]); lastLine.replace(null, to.ch, newText[newText.length-1]); firstLine.fixMarkEnds(lastLine); for (var i = 1, e = newText.length - 1; i < e; ++i) added.push(Line.inheritMarks(newText[i], firstLine)); if (nlines > 1) doc.remove(from.line + 1, nlines - 1, callbacks); doc.insert(from.line + 1, added); } if (options.lineWrapping) { var perLine = scroller.clientWidth / charWidth() - 3; doc.iter(from.line, from.line + newText.length, function(line) { if (line.hidden) return; var guess = Math.ceil(line.text.length / perLine) || 1; if (guess != line.height) updateLineHeight(line, guess); }); } else { doc.iter(from.line, i + newText.length, function(line) { var l = line.text; if (l.length > maxLineLength) { maxLine = l; maxLineLength = l.length; maxWidth = null; recomputeMaxLength = false; } }); if (recomputeMaxLength) { maxLineLength = 0; maxLine = ""; maxWidth = null; doc.iter(0, doc.size, function(line) { var l = line.text; if (l.length > maxLineLength) { maxLineLength = l.length; maxLine = l; } }); } } // Add these lines to the work array, so that they will be // highlighted. Adjust work lines if lines were added/removed. var newWork = [], lendiff = newText.length - nlines - 1; for (var i = 0, l = work.length; i < l; ++i) { var task = work[i]; if (task < from.line) newWork.push(task); else if (task > to.line) newWork.push(task + lendiff); } var hlEnd = from.line + Math.min(newText.length, 500); highlightLines(from.line, hlEnd); newWork.push(hlEnd); work = newWork; startWorker(100); // Remember that these lines changed, for updating the display changes.push({from: from.line, to: to.line + 1, diff: lendiff}); var changeObj = {from: from, to: to, text: newText}; if (textChanged) { for (var cur = textChanged; cur.next; cur = cur.next) {} cur.next = changeObj; } else textChanged = changeObj; // Update the selection function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;} setSelection(selFrom, selTo, updateLine(sel.from.line), updateLine(sel.to.line)); // Make sure the scroll-size div has the correct height. code.style.height = (doc.height * textHeight() + 2 * paddingTop()) + "px"; } function replaceRange(code, from, to) { from = clipPos(from); if (!to) to = from; else to = clipPos(to); code = splitLines(code); function adjustPos(pos) { if (posLess(pos, from)) return pos; if (!posLess(to, pos)) return end; var line = pos.line + code.length - (to.line - from.line) - 1; var ch = pos.ch; if (pos.line == to.line) ch += code[code.length-1].length - (to.ch - (to.line == from.line ? from.ch : 0)); return {line: line, ch: ch}; } var end; replaceRange1(code, from, to, function(end1) { end = end1; return {from: adjustPos(sel.from), to: adjustPos(sel.to)}; }); return end; } function replaceSelection(code, collapse) { replaceRange1(splitLines(code), sel.from, sel.to, function(end) { if (collapse == "end") return {from: end, to: end}; else if (collapse == "start") return {from: sel.from, to: sel.from}; else return {from: sel.from, to: end}; }); } function replaceRange1(code, from, to, computeSel) { var endch = code.length == 1 ? code[0].length + from.ch : code[code.length-1].length; var newSel = computeSel({line: from.line + code.length - 1, ch: endch}); updateLines(from, to, code, newSel.from, newSel.to); } function getRange(from, to) { var l1 = from.line, l2 = to.line; if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch); var code = [getLine(l1).text.slice(from.ch)]; doc.iter(l1 + 1, l2, function(line) { code.push(line.text); }); code.push(getLine(l2).text.slice(0, to.ch)); return code.join("\n"); } function getSelection() { return getRange(sel.from, sel.to); } var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll function slowPoll() { if (pollingFast) return; poll.set(options.pollInterval, function() { startOperation(); readInput(); if (focused) slowPoll(); endOperation(); }); } function fastPoll() { var missed = false; pollingFast = true; function p() { startOperation(); var changed = readInput(); if (!changed && !missed) {missed = true; poll.set(60, p);} else {pollingFast = false; slowPoll();} endOperation(); } poll.set(20, p); } // Previnput is a hack to work with IME. If we reset the textarea // on every change, that breaks IME. So we look for changes // compared to the previous content instead. (Modern browsers have // events that indicate IME taking place, but these are not widely // supported or compatible enough yet to rely on.) var prevInput = ""; function readInput() { if (leaveInputAlone || !focused || hasSelection(input)) return false; var text = input.value; if (text == prevInput) return false; shiftSelecting = null; var same = 0, l = Math.min(prevInput.length, text.length); while (same < l && prevInput[same] == text[same]) ++same; if (same < prevInput.length) sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)}; else if (overwrite && posEq(sel.from, sel.to)) sel.to = {line: sel.to.line, ch: Math.min(getLine(sel.to.line).text.length, sel.to.ch + (text.length - same))}; replaceSelection(text.slice(same), "end"); prevInput = text; return true; } function resetInput(user) { if (!posEq(sel.from, sel.to)) { prevInput = ""; input.value = getSelection(); input.select(); } else if (user) prevInput = input.value = ""; } function focusInput() { if (!options.readOnly) input.focus(); } function scrollEditorIntoView() { if (!cursor.getBoundingClientRect) return; var rect = cursor.getBoundingClientRect(); // IE returns bogus coordinates when the instance sits inside of an iframe and the cursor is hidden if (ie && rect.top == rect.bottom) return; var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight); if (rect.top < 0 || rect.bottom > winH) cursor.scrollIntoView(); } function scrollCursorIntoView() { var cursor = localCoords(sel.inverted ? sel.from : sel.to); var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x; return scrollIntoView(x, cursor.y, x, cursor.yBot); } function scrollIntoView(x1, y1, x2, y2) { var pl = paddingLeft(), pt = paddingTop(), lh = textHeight(); y1 += pt; y2 += pt; x1 += pl; x2 += pl; var screen = scroller.clientHeight, screentop = scroller.scrollTop, scrolled = false, result = true; if (y1 < screentop) {scroller.scrollTop = Math.max(0, y1 - 2*lh); scrolled = true;} else if (y2 > screentop + screen) {scroller.scrollTop = y2 + lh - screen; scrolled = true;} var screenw = scroller.clientWidth, screenleft = scroller.scrollLeft; var gutterw = options.fixedGutter ? gutter.clientWidth : 0; if (x1 < screenleft + gutterw) { if (x1 < 50) x1 = 0; scroller.scrollLeft = Math.max(0, x1 - 10 - gutterw); scrolled = true; } else if (x2 > screenw + screenleft - 3) { scroller.scrollLeft = x2 + 10 - screenw; scrolled = true; if (x2 > code.clientWidth) result = false; } if (scrolled && options.onScroll) options.onScroll(instance); return result; } function visibleLines() { var lh = textHeight(), top = scroller.scrollTop - paddingTop(); var from_height = Math.max(0, Math.floor(top / lh)); var to_height = Math.ceil((top + scroller.clientHeight) / lh); return {from: lineAtHeight(doc, from_height), to: lineAtHeight(doc, to_height)}; } // Uses a set of changes plus the current scroll position to // determine which DOM updates have to be made, and makes the // updates. function updateDisplay(changes, suppressCallback) { if (!scroller.clientWidth) { showingFrom = showingTo = displayOffset = 0; return; } // Compute the new visible window var visible = visibleLines(); // Bail out if the visible area is already rendered and nothing changed. if (changes !== true && changes.length == 0 && visible.from >= showingFrom && visible.to <= showingTo) return; var from = Math.max(visible.from - 100, 0), to = Math.min(doc.size, visible.to + 100); if (showingFrom < from && from - showingFrom < 20) from = showingFrom; if (showingTo > to && showingTo - to < 20) to = Math.min(doc.size, showingTo); // Create a range of theoretically intact lines, and punch holes // in that using the change info. var intact = changes === true ? [] : computeIntact([{from: showingFrom, to: showingTo, domStart: 0}], changes); // Clip off the parts that won't be visible var intactLines = 0; for (var i = 0; i < intact.length; ++i) { var range = intact[i]; if (range.from < from) {range.domStart += (from - range.from); range.from = from;} if (range.to > to) range.to = to; if (range.from >= range.to) intact.splice(i--, 1); else intactLines += range.to - range.from; } if (intactLines == to - from) return; intact.sort(function(a, b) {return a.domStart - b.domStart;}); var th = textHeight(), gutterDisplay = gutter.style.display; lineDiv.style.display = gutter.style.display = "none"; patchDisplay(from, to, intact); lineDiv.style.display = ""; // Position the mover div to align with the lines it's supposed // to be showing (which will cover the visible display) var different = from != showingFrom || to != showingTo || lastSizeC != scroller.clientHeight + th; // This is just a bogus formula that detects when the editor is // resized or the font size changes. if (different) lastSizeC = scroller.clientHeight + th; showingFrom = from; showingTo = to; displayOffset = heightAtLine(doc, from); mover.style.top = (displayOffset * th) + "px"; code.style.height = (doc.height * th + 2 * paddingTop()) + "px"; // Since this is all rather error prone, it is honoured with the // only assertion in the whole file. if (lineDiv.childNodes.length != showingTo - showingFrom) throw new Error("BAD PATCH! " + JSON.stringify(intact) + " size=" + (showingTo - showingFrom) + " nodes=" + lineDiv.childNodes.length); if (options.lineWrapping) { maxWidth = scroller.clientWidth; var curNode = lineDiv.firstChild; doc.iter(showingFrom, showingTo, function(line) { if (!line.hidden) { var height = Math.round(curNode.offsetHeight / th) || 1; if (line.height != height) {updateLineHeight(line, height); gutterDirty = true;} } curNode = curNode.nextSibling; }); } else { if (maxWidth == null) maxWidth = stringWidth(maxLine); if (maxWidth > scroller.clientWidth) { lineSpace.style.width = maxWidth + "px"; // Needed to prevent odd wrapping/hiding of widgets placed in here. code.style.width = ""; code.style.width = scroller.scrollWidth + "px"; } else { lineSpace.style.width = code.style.width = ""; } } gutter.style.display = gutterDisplay; if (different || gutterDirty) updateGutter(); updateCursor(); if (!suppressCallback && options.onUpdate) options.onUpdate(instance); return true; } function computeIntact(intact, changes) { for (var i = 0, l = changes.length || 0; i < l; ++i) { var change = changes[i], intact2 = [], diff = change.diff || 0; for (var j = 0, l2 = intact.length; j < l2; ++j) { var range = intact[j]; if (change.to <= range.from && change.diff) intact2.push({from: range.from + diff, to: range.to + diff, domStart: range.domStart}); else if (change.to <= range.from || change.from >= range.to) intact2.push(range); else { if (change.from > range.from) intact2.push({from: range.from, to: change.from, domStart: range.domStart}); if (change.to < range.to) intact2.push({from: change.to + diff, to: range.to + diff, domStart: range.domStart + (change.to - range.from)}); } } intact = intact2; } return intact; } function patchDisplay(from, to, intact) { // The first pass removes the DOM nodes that aren't intact. if (!intact.length) lineDiv.innerHTML = ""; else { function killNode(node) { var tmp = node.nextSibling; node.parentNode.removeChild(node); return tmp; } var domPos = 0, curNode = lineDiv.firstChild, n; for (var i = 0; i < intact.length; ++i) { var cur = intact[i]; while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;} for (var j = 0, e = cur.to - cur.from; j < e; ++j) {curNode = curNode.nextSibling; domPos++;} } while (curNode) curNode = killNode(curNode); } // This pass fills in the lines that actually changed. var nextIntact = intact.shift(), curNode = lineDiv.firstChild, j = from; var sfrom = sel.from.line, sto = sel.to.line, inSel = sfrom < from && sto >= from; var scratch = targetDocument.createElement("div"), newElt; doc.iter(from, to, function(line) { var ch1 = null, ch2 = null; if (inSel) { ch1 = 0; if (sto == j) {inSel = false; ch2 = sel.to.ch;} } else if (sfrom == j) { if (sto == j) {ch1 = sel.from.ch; ch2 = sel.to.ch;} else {inSel = true; ch1 = sel.from.ch;} } if (nextIntact && nextIntact.to == j) nextIntact = intact.shift(); if (!nextIntact || nextIntact.from > j) { if (line.hidden) scratch.innerHTML = "
";
                    else scratch.innerHTML = line.getHTML(ch1, ch2, true, tabText);
                    lineDiv.insertBefore(scratch.firstChild, curNode);
                } else {
                    curNode = curNode.nextSibling;
                }
                ++j;
            });
        }

        function updateGutter() {
            if (!options.gutter && !options.lineNumbers) return;
            var hText = mover.offsetHeight, hEditor = scroller.clientHeight;
            gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px";
            var html = [], i = showingFrom;
            doc.iter(showingFrom, Math.max(showingTo, showingFrom + 1), function(line) {
                if (line.hidden) {
                    html.push("
");
                } else {
                    var marker = line.gutterMarker;
                    var text = options.lineNumbers ? i + options.firstLineNumber : null;
                    if (marker && marker.text)
                        text = marker.text.replace("%N%", text != null ? text : "");
                    else if (text == null)
                        text = "\u00a0";
                    html.push((marker && marker.style ? '
' : "
"), text);
                    for (var j = 1; j < line.height; ++j) html.push("
 "); html.push("
"); } ++i; }); gutter.style.display = "none"; gutterText.innerHTML = html.join(""); var minwidth = String(doc.size).length, firstNode = gutterText.firstChild, val = eltText(firstNode), pad = ""; while (val.length + pad.length < minwidth) pad += "\u00a0"; if (pad) firstNode.insertBefore(targetDocument.createTextNode(pad), firstNode.firstChild); gutter.style.display = ""; lineSpace.style.marginLeft = gutter.offsetWidth + "px"; gutterDirty = false; } function updateCursor() { var head = sel.inverted ? sel.from : sel.to, lh = textHeight(); var pos = localCoords(head, true); var wrapOff = eltOffset(wrapper), lineOff = eltOffset(lineDiv); inputDiv.style.top = (pos.y + lineOff.top - wrapOff.top) + "px"; inputDiv.style.left = (pos.x + lineOff.left - wrapOff.left) + "px"; if (posEq(sel.from, sel.to)) { cursor.style.top = pos.y + "px"; cursor.style.left = (options.lineWrapping ? Math.min(pos.x, lineSpace.offsetWidth) : pos.x) + "px"; cursor.style.display = ""; } else cursor.style.display = "none"; } function setShift(val) { if (val) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from); else shiftSelecting = null; } function setSelectionUser(from, to) { var sh = shiftSelecting && clipPos(shiftSelecting); if (sh) { if (posLess(sh, from)) from = sh; else if (posLess(to, sh)) to = sh; } setSelection(from, to); userSelChange = true; } // Update the selection. Last two args are only used by // updateLines, since they have to be expressed in the line // numbers before the update. function setSelection(from, to, oldFrom, oldTo) { goalColumn = null; if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;} if (posEq(sel.from, from) && posEq(sel.to, to)) return; if (posLess(to, from)) {var tmp = to; to = from; from = tmp;} // Skip over hidden lines. if (from.line != oldFrom) from = skipHidden(from, oldFrom, sel.from.ch); if (to.line != oldTo) to = skipHidden(to, oldTo, sel.to.ch); if (posEq(from, to)) sel.inverted = false; else if (posEq(from, sel.to)) sel.inverted = false; else if (posEq(to, sel.from)) sel.inverted = true; // Some ugly logic used to only mark the lines that actually did // see a change in selection as changed, rather than the whole // selected range. if (posEq(from, to)) { if (!posEq(sel.from, sel.to)) changes.push({from: oldFrom, to: oldTo + 1}); } else if (posEq(sel.from, sel.to)) { changes.push({from: from.line, to: to.line + 1}); } else { if (!posEq(from, sel.from)) { if (from.line < oldFrom) changes.push({from: from.line, to: Math.min(to.line, oldFrom) + 1}); else changes.push({from: oldFrom, to: Math.min(oldTo, from.line) + 1}); } if (!posEq(to, sel.to)) { if (to.line < oldTo) changes.push({from: Math.max(oldFrom, from.line), to: oldTo + 1}); else changes.push({from: Math.max(from.line, oldTo), to: to.line + 1}); } } sel.from = from; sel.to = to; selectionChanged = true; } function skipHidden(pos, oldLine, oldCh) { function getNonHidden(dir) { var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1; while (lNo != end) { var line = getLine(lNo); if (!line.hidden) { var ch = pos.ch; if (ch > oldCh || ch > line.text.length) ch = line.text.length; return {line: lNo, ch: ch}; } lNo += dir; } } var line = getLine(pos.line); if (!line.hidden) return pos; if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1); else return getNonHidden(-1) || getNonHidden(1); } function setCursor(line, ch, user) { var pos = clipPos({line: line, ch: ch || 0}); (user ? setSelectionUser : setSelection)(pos, pos); } function clipLine(n) {return Math.max(0, Math.min(n, doc.size-1));} function clipPos(pos) { if (pos.line < 0) return {line: 0, ch: 0}; if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc.size-1).text.length}; var ch = pos.ch, linelen = getLine(pos.line).text.length; if (ch == null || ch > linelen) return {line: pos.line, ch: linelen}; else if (ch < 0) return {line: pos.line, ch: 0}; else return pos; } function findPosH(dir, unit) { var end = sel.inverted ? sel.from : sel.to, line = end.line, ch = end.ch; var lineObj = getLine(line); function findNextLine() { for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) { var lo = getLine(l); if (!lo.hidden) { line = l; lineObj = lo; return true; } } } function moveOnce(boundToLine) { if (ch == (dir < 0 ? 0 : lineObj.text.length)) { if (!boundToLine && findNextLine()) ch = dir < 0 ? lineObj.text.length : 0; else return false; } else ch += dir; return true; } if (unit == "char") moveOnce(); else if (unit == "column") moveOnce(true); else if (unit == "word") { var sawWord = false; for (;;) { if (dir < 0) if (!moveOnce()) break; if (isWordChar(lineObj.text.charAt(ch))) sawWord = true; else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;} if (dir > 0) if (!moveOnce()) break; } } return {line: line, ch: ch}; } function moveH(dir, unit) { var pos = dir < 0 ? sel.from : sel.to; if (shiftSelecting || posEq(sel.from, sel.to)) pos = findPosH(dir, unit); setCursor(pos.line, pos.ch, true); } function deleteH(dir, unit) { if (!posEq(sel.from, sel.to)) replaceRange("", sel.from, sel.to); else if (dir < 0) replaceRange("", findPosH(dir, unit), sel.to); else replaceRange("", sel.from, findPosH(dir, unit)); userSelChange = true; } var goalColumn = null; function moveV(dir, unit) { var dist = 0, pos = localCoords(sel.inverted ? sel.from : sel.to, true); if (goalColumn != null) pos.x = goalColumn; if (unit == "page") dist = scroller.clientHeight; else if (unit == "line") dist = textHeight(); var target = coordsChar(pos.x, pos.y + dist * dir + 2); setCursor(target.line, target.ch, true); goalColumn = pos.x; } function selectWordAt(pos) { var line = getLine(pos.line).text; var start = pos.ch, end = pos.ch; while (start > 0 && isWordChar(line.charAt(start - 1))) --start; while (end < line.length && isWordChar(line.charAt(end))) ++end; setSelectionUser({line: pos.line, ch: start}, {line: pos.line, ch: end}); } function selectLine(line) { setSelectionUser({line: line, ch: 0}, {line: line, ch: getLine(line).text.length}); } function indentSelected(mode) { if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode); var e = sel.to.line - (sel.to.ch ? 0 : 1); for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode); } function indentLine(n, how) { if (!how) how = "add"; if (how == "smart") { if (!mode.indent) how = "prev"; else var state = getStateBefore(n); } var line = getLine(n), curSpace = line.indentation(options.tabSize), curSpaceString = line.text.match(/^\s*/)[0], indentation; if (how == "prev") { if (n) indentation = getLine(n-1).indentation(options.tabSize); else indentation = 0; } else if (how == "smart") indentation = mode.indent(state, line.text.slice(curSpaceString.length), line.text); else if (how == "add") indentation = curSpace + options.indentUnit; else if (how == "subtract") indentation = curSpace - options.indentUnit; indentation = Math.max(0, indentation); var diff = indentation - curSpace; if (!diff) { if (sel.from.line != n && sel.to.line != n) return; var indentString = curSpaceString; } else { var indentString = "", pos = 0; if (options.indentWithTabs) for (var i = Math.floor(indentation / options.tabSize); i; --i) {pos += options.tabSize; indentString += "\t";} while (pos < indentation) {++pos; indentString += " ";} } replaceRange(indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length}); } function loadMode() { mode = CodeMirror.getMode(options, options.mode); doc.iter(0, doc.size, function(line) { line.stateAfter = null; }); work = [0]; startWorker(); } function gutterChanged() { var visible = options.gutter || options.lineNumbers; gutter.style.display = visible ? "" : "none"; if (visible) gutterDirty = true; else lineDiv.parentNode.style.marginLeft = 0; } function wrappingChanged(from, to) { if (options.lineWrapping) { wrapper.className += " CodeMirror-wrap"; var perLine = scroller.clientWidth / charWidth() - 3; doc.iter(0, doc.size, function(line) { if (line.hidden) return; var guess = Math.ceil(line.text.length / perLine) || 1; if (guess != 1) updateLineHeight(line, guess); }); lineSpace.style.width = code.style.width = ""; } else { wrapper.className = wrapper.className.replace(" CodeMirror-wrap", ""); maxWidth = null; maxLine = ""; doc.iter(0, doc.size, function(line) { if (line.height != 1 && !line.hidden) updateLineHeight(line, 1); if (line.text.length > maxLine.length) maxLine = line.text; }); } changes.push({from: 0, to: doc.size}); } function computeTabText() { for (var str = '', i = 0; i < options.tabSize; ++i) str += " "; return str + ""; } function tabsChanged() { tabText = computeTabText(); updateDisplay(true); } function themeChanged() { scroller.className = scroller.className.replace(/\s*cm-s-\w+/g, "") + options.theme.replace(/(^|\s)\s*/g, " cm-s-"); } function TextMarker() { this.set = []; } TextMarker.prototype.clear = operation(function() { var min = Infinity, max = -Infinity; for (var i = 0, e = this.set.length; i < e; ++i) { var line = this.set[i], mk = line.marked; if (!mk || !line.parent) continue; var lineN = lineNo(line); min = Math.min(min, lineN); max = Math.max(max, lineN); for (var j = 0; j < mk.length; ++j) if (mk[j].set == this.set) mk.splice(j--, 1); } if (min != Infinity) changes.push({from: min, to: max + 1}); }); TextMarker.prototype.find = function() { var from, to; for (var i = 0, e = this.set.length; i < e; ++i) { var line = this.set[i], mk = line.marked; for (var j = 0; j < mk.length; ++j) { var mark = mk[j]; if (mark.set == this.set) { if (mark.from != null || mark.to != null) { var found = lineNo(line); if (found != null) { if (mark.from != null) from = {line: found, ch: mark.from}; if (mark.to != null) to = {line: found, ch: mark.to}; } } } } } return {from: from, to: to}; }; function markText(from, to, className) { from = clipPos(from); to = clipPos(to); var tm = new TextMarker(); function add(line, from, to, className) { getLine(line).addMark(new MarkedText(from, to, className, tm.set)); } if (from.line == to.line) add(from.line, from.ch, to.ch, className); else { add(from.line, from.ch, null, className); for (var i = from.line + 1, e = to.line; i < e; ++i) add(i, null, null, className); add(to.line, null, to.ch, className); } changes.push({from: from.line, to: to.line + 1}); return tm; } function setBookmark(pos) { pos = clipPos(pos); var bm = new Bookmark(pos.ch); getLine(pos.line).addMark(bm); return bm; } function addGutterMarker(line, text, className) { if (typeof line == "number") line = getLine(clipLine(line)); line.gutterMarker = {text: text, style: className}; gutterDirty = true; return line; } function removeGutterMarker(line) { if (typeof line == "number") line = getLine(clipLine(line)); line.gutterMarker = null; gutterDirty = true; } function changeLine(handle, op) { var no = handle, line = handle; if (typeof handle == "number") line = getLine(clipLine(handle)); else no = lineNo(handle); if (no == null) return null; if (op(line, no)) changes.push({from: no, to: no + 1}); else return null; return line; } function setLineClass(handle, className) { return changeLine(handle, function(line) { if (line.className != className) { line.className = className; return true; } }); } function setLineHidden(handle, hidden) { return changeLine(handle, function(line, no) { if (line.hidden != hidden) { line.hidden = hidden; updateLineHeight(line, hidden ? 0 : 1); if (hidden && (sel.from.line == no || sel.to.line == no)) setSelection(skipHidden(sel.from, sel.from.line, sel.from.ch), skipHidden(sel.to, sel.to.line, sel.to.ch)); return (gutterDirty = true); } }); } function lineInfo(line) { if (typeof line == "number") { if (!isLine(line)) return null; var n = line; line = getLine(line); if (!line) return null; } else { var n = lineNo(line); if (n == null) return null; } var marker = line.gutterMarker; return {line: n, handle: line, text: line.text, markerText: marker && marker.text, markerClass: marker && marker.style, lineClass: line.className}; } function stringWidth(str) { measure.innerHTML = "
x
"; measure.firstChild.firstChild.firstChild.nodeValue = str; return measure.firstChild.firstChild.offsetWidth || 10; } // These are used to go from pixel positions to character // positions, taking varying character widths into account. function charFromX(line, x) { if (x <= 0) return 0; var lineObj = getLine(line), text = lineObj.text; function getX(len) { measure.innerHTML = "
" + lineObj.getHTML(null, null, false, tabText, len) + "
"; return measure.firstChild.firstChild.offsetWidth; } var from = 0, fromX = 0, to = text.length, toX; // Guess a suitable upper bound for our search. var estimated = Math.min(to, Math.ceil(x / charWidth())); for (;;) { var estX = getX(estimated); if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2)); else {toX = estX; to = estimated; break;} } if (x > toX) return to; // Try to guess a suitable lower bound as well. estimated = Math.floor(to * 0.8); estX = getX(estimated); if (estX < x) {from = estimated; fromX = estX;} // Do a binary search between these bounds. for (;;) { if (to - from <= 1) return (toX - x > x - fromX) ? from : to; var middle = Math.ceil((from + to) / 2), middleX = getX(middle); if (middleX > x) {to = middle; toX = middleX;} else {from = middle; fromX = middleX;} } } var tempId = Math.floor(Math.random() * 0xffffff).toString(16); function measureLine(line, ch) { var extra = ""; // Include extra text at the end to make sure the measured line is wrapped in the right way. if (options.lineWrapping) { var end = line.text.indexOf(" ", ch + 2); extra = htmlEscape(line.text.slice(ch + 1, end < 0 ? line.text.length : end + (ie ? 5 : 0))); } measure.innerHTML = "
" + line.getHTML(null, null, false, tabText, ch) +
                '' + htmlEscape(line.text.charAt(ch) || " ") + "" +
                extra + "
"; var elt = document.getElementById("CodeMirror-temp-" + tempId); var top = elt.offsetTop, left = elt.offsetLeft; // Older IEs report zero offsets for spans directly after a wrap if (ie && ch && top == 0 && left == 0) { var backup = document.createElement("span"); backup.innerHTML = "x"; elt.parentNode.insertBefore(backup, elt.nextSibling); top = backup.offsetTop; } return {top: top, left: left}; } function localCoords(pos, inLineWrap) { var x, lh = textHeight(), y = lh * (heightAtLine(doc, pos.line) - (inLineWrap ? displayOffset : 0)); if (pos.ch == 0) x = 0; else { var sp = measureLine(getLine(pos.line), pos.ch); x = sp.left; if (options.lineWrapping) y += Math.max(0, sp.top); } return {x: x, y: y, yBot: y + lh}; } // Coords must be lineSpace-local function coordsChar(x, y) { if (y < 0) y = 0; var th = textHeight(), cw = charWidth(), heightPos = displayOffset + Math.floor(y / th); var lineNo = lineAtHeight(doc, heightPos); if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc.size - 1).text.length}; var lineObj = getLine(lineNo), text = lineObj.text; var tw = options.lineWrapping, innerOff = tw ? heightPos - heightAtLine(doc, lineNo) : 0; if (x <= 0 && innerOff == 0) return {line: lineNo, ch: 0}; function getX(len) { var sp = measureLine(lineObj, len); if (tw) { var off = Math.round(sp.top / th); return Math.max(0, sp.left + (off - innerOff) * scroller.clientWidth); } return sp.left; } var from = 0, fromX = 0, to = text.length, toX; // Guess a suitable upper bound for our search. var estimated = Math.min(to, Math.ceil((x + innerOff * scroller.clientWidth * .9) / cw)); for (;;) { var estX = getX(estimated); if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2)); else {toX = estX; to = estimated; break;} } if (x > toX) return {line: lineNo, ch: to}; // Try to guess a suitable lower bound as well. estimated = Math.floor(to * 0.8); estX = getX(estimated); if (estX < x) {from = estimated; fromX = estX;} // Do a binary search between these bounds. for (;;) { if (to - from <= 1) return {line: lineNo, ch: (toX - x > x - fromX) ? from : to}; var middle = Math.ceil((from + to) / 2), middleX = getX(middle); if (middleX > x) {to = middle; toX = middleX;} else {from = middle; fromX = middleX;} } } function pageCoords(pos) { var local = localCoords(pos, true), off = eltOffset(lineSpace); return {x: off.left + local.x, y: off.top + local.y, yBot: off.top + local.yBot}; } var cachedHeight, cachedHeightFor, measureText; function textHeight() { if (measureText == null) { measureText = "
";
                for (var i = 0; i < 49; ++i) measureText += "x
"; measureText += "x
"; } var offsetHeight = lineDiv.clientHeight; if (offsetHeight == cachedHeightFor) return cachedHeight; cachedHeightFor = offsetHeight; measure.innerHTML = measureText; cachedHeight = measure.firstChild.offsetHeight / 50 || 1; measure.innerHTML = ""; return cachedHeight; } var cachedWidth, cachedWidthFor = 0; function charWidth() { if (scroller.clientWidth == cachedWidthFor) return cachedWidth; cachedWidthFor = scroller.clientWidth; return (cachedWidth = stringWidth("x")); } function paddingTop() {return lineSpace.offsetTop;} function paddingLeft() {return lineSpace.offsetLeft;} function posFromMouse(e, liberal) { var offW = eltOffset(scroller, true), x, y; // Fails unpredictably on IE[67] when mouse is dragged around quickly. try { x = e.clientX; y = e.clientY; } catch (e) { return null; } // This is a mess of a heuristic to try and determine whether a // scroll-bar was clicked or not, and to return null if one was // (and !liberal). if (!liberal && (x - offW.left > scroller.clientWidth || y - offW.top > scroller.clientHeight)) return null; var offL = eltOffset(lineSpace, true); return coordsChar(x - offL.left, y - offL.top); } function onContextMenu(e) { var pos = posFromMouse(e); if (!pos || window.opera) return; // Opera is difficult. if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to)) operation(setCursor)(pos.line, pos.ch); var oldCSS = input.style.cssText; inputDiv.style.position = "absolute"; input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) + "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; " + "border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; leaveInputAlone = true; var val = input.value = getSelection(); focusInput(); input.select(); function rehide() { var newVal = splitLines(input.value).join("\n"); if (newVal != val) operation(replaceSelection)(newVal, "end"); inputDiv.style.position = "relative"; input.style.cssText = oldCSS; leaveInputAlone = false; resetInput(true); slowPoll(); } if (gecko) { e_stop(e); var mouseup = connect(window, "mouseup", function() { mouseup(); setTimeout(rehide, 20); }, true); } else { setTimeout(rehide, 50); } } // Cursor-blinking function restartBlink() { clearInterval(blinker); var on = true; cursor.style.visibility = ""; blinker = setInterval(function() { cursor.style.visibility = (on = !on) ? "" : "hidden"; }, 650); } var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"}; function matchBrackets(autoclear) { var head = sel.inverted ? sel.from : sel.to, line = getLine(head.line), pos = head.ch - 1; var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)]; if (!match) return; var ch = match.charAt(0), forward = match.charAt(1) == ">", d = forward ? 1 : -1, st = line.styles; for (var off = pos + 1, i = 0, e = st.length; i < e; i+=2) if ((off -= st[i].length) <= 0) {var style = st[i+1]; break;} var stack = [line.text.charAt(pos)], re = /[(){}[\]]/; function scan(line, from, to) { if (!line.text) return; var st = line.styles, pos = forward ? 0 : line.text.length - 1, cur; for (var i = forward ? 0 : st.length - 2, e = forward ? st.length : -2; i != e; i += 2*d) { var text = st[i]; if (st[i+1] != null && st[i+1] != style) {pos += d * text.length; continue;} for (var j = forward ? 0 : text.length - 1, te = forward ? text.length : -1; j != te; j += d, pos+=d) { if (pos >= from && pos < to && re.test(cur = text.charAt(j))) { var match = matching[cur]; if (match.charAt(1) == ">" == forward) stack.push(cur); else if (stack.pop() != match.charAt(0)) return {pos: pos, match: false}; else if (!stack.length) return {pos: pos, match: true}; } } } } for (var i = head.line, e = forward ? Math.min(i + 100, doc.size) : Math.max(-1, i - 100); i != e; i+=d) { var line = getLine(i), first = i == head.line; var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length); if (found) break; } if (!found) found = {pos: null, match: false}; var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket"; var one = markText({line: head.line, ch: pos}, {line: head.line, ch: pos+1}, style), two = found.pos != null && markText({line: i, ch: found.pos}, {line: i, ch: found.pos + 1}, style); var clear = operation(function(){one.clear(); two && two.clear();}); if (autoclear) setTimeout(clear, 800); else bracketHighlighted = clear; } // Finds the line to start with when starting a parse. Tries to // find a line with a stateAfter, so that it can start with a // valid state. If that fails, it returns the line with the // smallest indentation, which tends to need the least context to // parse correctly. function findStartLine(n) { var minindent, minline; for (var search = n, lim = n - 40; search > lim; --search) { if (search == 0) return 0; var line = getLine(search-1); if (line.stateAfter) return search; var indented = line.indentation(options.tabSize); if (minline == null || minindent > indented) { minline = search - 1; minindent = indented; } } return minline; } function getStateBefore(n) { var start = findStartLine(n), state = start && getLine(start-1).stateAfter; if (!state) state = startState(mode); else state = copyState(mode, state); doc.iter(start, n, function(line) { line.highlight(mode, state, options.tabSize); line.stateAfter = copyState(mode, state); }); if (start < n) changes.push({from: start, to: n}); if (n < doc.size && !getLine(n).stateAfter) work.push(n); return state; } function highlightLines(start, end) { var state = getStateBefore(start); doc.iter(start, end, function(line) { line.highlight(mode, state, options.tabSize); line.stateAfter = copyState(mode, state); }); } function highlightWorker() { var end = +new Date + options.workTime; var foundWork = work.length; while (work.length) { if (!getLine(showingFrom).stateAfter) var task = showingFrom; else var task = work.pop(); if (task >= doc.size) continue; var start = findStartLine(task), state = start && getLine(start-1).stateAfter; if (state) state = copyState(mode, state); else state = startState(mode); var unchanged = 0, compare = mode.compareStates, realChange = false, i = start, bail = false; doc.iter(i, doc.size, function(line) { var hadState = line.stateAfter; if (+new Date > end) { work.push(i); startWorker(options.workDelay); if (realChange) changes.push({from: task, to: i + 1}); return (bail = true); } var changed = line.highlight(mode, state, options.tabSize); if (changed) realChange = true; line.stateAfter = copyState(mode, state); if (compare) { if (hadState && compare(hadState, state)) return true; } else { if (changed !== false || !hadState) unchanged = 0; else if (++unchanged > 3 && (!mode.indent || mode.indent(hadState, "") == mode.indent(state, ""))) return true; } ++i; }); if (bail) return; if (realChange) changes.push({from: task, to: i + 1}); } if (foundWork && options.onHighlightComplete) options.onHighlightComplete(instance); } function startWorker(time) { if (!work.length) return; highlight.set(time, operation(highlightWorker)); } // Operations are used to wrap changes in such a way that each // change won't have to update the cursor and display (which would // be awkward, slow, and error-prone), but instead updates are // batched and then all combined and executed at once. function startOperation() { updateInput = userSelChange = textChanged = null; changes = []; selectionChanged = false; callbacks = []; } function endOperation() { var reScroll = false, updated; if (selectionChanged) reScroll = !scrollCursorIntoView(); if (changes.length) updated = updateDisplay(changes, true); else { if (selectionChanged) updateCursor(); if (gutterDirty) updateGutter(); } if (reScroll) scrollCursorIntoView(); if (selectionChanged) {scrollEditorIntoView(); restartBlink();} if (focused && !leaveInputAlone && (updateInput === true || (updateInput !== false && selectionChanged))) resetInput(userSelChange); if (selectionChanged && options.matchBrackets) setTimeout(operation(function() { if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;} if (posEq(sel.from, sel.to)) matchBrackets(false); }), 20); var tc = textChanged, cbs = callbacks; // these can be reset by callbacks if (selectionChanged && options.onCursorActivity) options.onCursorActivity(instance); if (tc && options.onChange && instance) options.onChange(instance, tc); for (var i = 0; i < cbs.length; ++i) cbs[i](instance); if (updated && options.onUpdate) options.onUpdate(instance); } var nestedOperation = 0; function operation(f) { return function() { if (!nestedOperation++) startOperation(); try {var result = f.apply(this, arguments);} finally {if (!--nestedOperation) endOperation();} return result; }; } for (var ext in extensions) if (extensions.propertyIsEnumerable(ext) && !instance.propertyIsEnumerable(ext)) instance[ext] = extensions[ext]; return instance; } // (end of function CodeMirror) // The default configuration options. CodeMirror.defaults = { value: "", mode: null, theme: "default", indentUnit: 2, indentWithTabs: false, tabSize: 4, keyMap: "default", extraKeys: null, electricChars: true, onKeyEvent: null, lineWrapping: false, lineNumbers: false, gutter: false, fixedGutter: false, firstLineNumber: 1, readOnly: false, onChange: null, onCursorActivity: null, onGutterClick: null, onHighlightComplete: null, onUpdate: null, onFocus: null, onBlur: null, onScroll: null, matchBrackets: false, workTime: 100, workDelay: 200, pollInterval: 100, undoDepth: 40, tabindex: null, document: window.document }; var mac = /Mac/.test(navigator.platform); var win = /Win/.test(navigator.platform); // Known modes, by name and by MIME var modes = {}, mimeModes = {}; CodeMirror.defineMode = function(name, mode) { if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name; modes[name] = mode; }; CodeMirror.defineMIME = function(mime, spec) { mimeModes[mime] = spec; }; CodeMirror.getMode = function(options, spec) { if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) spec = mimeModes[spec]; if (typeof spec == "string") var mname = spec, config = {}; else if (spec != null) var mname = spec.name, config = spec; var mfactory = modes[mname]; if (!mfactory) { if (window.console) console.warn("No mode " + mname + " found, falling back to plain text."); return CodeMirror.getMode(options, "text/plain"); } return mfactory(options, config || {}); }; CodeMirror.listModes = function() { var list = []; for (var m in modes) if (modes.propertyIsEnumerable(m)) list.push(m); return list; }; CodeMirror.listMIMEs = function() { var list = []; for (var m in mimeModes) if (mimeModes.propertyIsEnumerable(m)) list.push({mime: m, mode: mimeModes[m]}); return list; }; var extensions = CodeMirror.extensions = {}; CodeMirror.defineExtension = function(name, func) { extensions[name] = func; }; var commands = CodeMirror.commands = { selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});}, killLine: function(cm) { var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to); if (!sel && cm.getLine(from.line).length == from.ch) cm.replaceRange("", from, {line: from.line + 1, ch: 0}); else cm.replaceRange("", from, sel ? to : {line: from.line}); }, deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange("", {line: l, ch: 0}, {line: l});}, undo: function(cm) {cm.undo();}, redo: function(cm) {cm.redo();}, goDocStart: function(cm) {cm.setCursor(0, 0, true);}, goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);}, goLineStart: function(cm) {cm.setCursor(cm.getCursor().line, 0, true);}, goLineStartSmart: function(cm) { var cur = cm.getCursor(); var text = cm.getLine(cur.line), firstNonWS = Math.max(0, text.search(/\S/)); cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true); }, goLineEnd: function(cm) {cm.setSelection({line: cm.getCursor().line}, null, true);}, goLineUp: function(cm) {cm.moveV(-1, "line");}, goLineDown: function(cm) {cm.moveV(1, "line");}, goPageUp: function(cm) {cm.moveV(-1, "page");}, goPageDown: function(cm) {cm.moveV(1, "page");}, goCharLeft: function(cm) {cm.moveH(-1, "char");}, goCharRight: function(cm) {cm.moveH(1, "char");}, goColumnLeft: function(cm) {cm.moveH(-1, "column");}, goColumnRight: function(cm) {cm.moveH(1, "column");}, goWordLeft: function(cm) {cm.moveH(-1, "word");}, goWordRight: function(cm) {cm.moveH(1, "word");}, delCharLeft: function(cm) {cm.deleteH(-1, "char");}, delCharRight: function(cm) {cm.deleteH(1, "char");}, delWordLeft: function(cm) {cm.deleteH(-1, "word");}, delWordRight: function(cm) {cm.deleteH(1, "word");}, indentAuto: function(cm) {cm.indentSelection("smart");}, indentMore: function(cm) {cm.indentSelection("add");}, indentLess: function(cm) {cm.indentSelection("subtract");}, insertTab: function(cm) {cm.replaceSelection("\t", "end");}, transposeChars: function(cm) { var cur = cm.getCursor(), line = cm.getLine(cur.line); if (cur.ch > 0 && cur.ch < line.length - 1) cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1), {line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1}); }, newlineAndIndent: function(cm) { cm.replaceSelection("\n", "end"); cm.indentLine(cm.getCursor().line); }, toggleOverwrite: function(cm) {cm.toggleOverwrite();} }; var keyMap = CodeMirror.keyMap = {}; keyMap.basic = { "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", "Delete": "delCharRight", "Backspace": "delCharLeft", "Tab": "indentMore", "Shift-Tab": "indentLess", "Enter": "newlineAndIndent", "Insert": "toggleOverwrite" }; // Note that the save and find-related commands aren't defined by // default. Unknown commands are simply ignored. keyMap.pcDefault = { "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", "Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd", "Ctrl-Left": "goWordLeft", "Ctrl-Right": "goWordRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", "Ctrl-Backspace": "delWordLeft", "Ctrl-Delete": "delWordRight", "Ctrl-S": "save", "Ctrl-F": "find", "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", fallthrough: "basic" }; keyMap.macDefault = { "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goWordLeft", "Alt-Right": "goWordRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delWordLeft", "Ctrl-Alt-Backspace": "delWordRight", "Alt-Delete": "delWordRight", "Cmd-S": "save", "Cmd-F": "find", "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", fallthrough: ["basic", "emacsy"] }; keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; keyMap.emacsy = { "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", "Ctrl-V": "goPageUp", "Shift-Ctrl-V": "goPageDown", "Ctrl-D": "delCharRight", "Ctrl-H": "delCharLeft", "Alt-D": "delWordRight", "Alt-Backspace": "delWordLeft", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars" }; function lookupKey(name, extraMap, map) { function lookup(name, map, ft) { var found = map[name]; if (found != null) return found; if (ft == null) ft = map.fallthrough; if (ft == null) return map.catchall; if (typeof ft == "string") return lookup(name, keyMap[ft]); for (var i = 0, e = ft.length; i < e; ++i) { found = lookup(name, keyMap[ft[i]]); if (found != null) return found; } return null; } return extraMap ? lookup(name, extraMap, map) : lookup(name, keyMap[map]); } function isModifierKey(event) { var name = keyNames[event.keyCode]; return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"; } CodeMirror.fromTextArea = function(textarea, options) { if (!options) options = {}; options.value = textarea.value; if (!options.tabindex && textarea.tabindex) options.tabindex = textarea.tabindex; function save() {textarea.value = instance.getValue();} if (textarea.form) { // Deplorable hack to make the submit method do the right thing. var rmSubmit = connect(textarea.form, "submit", save, true); if (typeof textarea.form.submit == "function") { var realSubmit = textarea.form.submit; function wrappedSubmit() { save(); textarea.form.submit = realSubmit; textarea.form.submit(); textarea.form.submit = wrappedSubmit; } textarea.form.submit = wrappedSubmit; } } textarea.style.display = "none"; var instance = CodeMirror(function(node) { textarea.parentNode.insertBefore(node, textarea.nextSibling); }, options); instance.save = save; instance.getTextArea = function() { return textarea; }; instance.toTextArea = function() { save(); textarea.parentNode.removeChild(instance.getWrapperElement()); textarea.style.display = ""; if (textarea.form) { rmSubmit(); if (typeof textarea.form.submit == "function") textarea.form.submit = realSubmit; } }; return instance; }; // Utility functions for working with state. Exported because modes // sometimes need to do this. function copyState(mode, state) { if (state === true) return state; if (mode.copyState) return mode.copyState(state); var nstate = {}; for (var n in state) { var val = state[n]; if (val instanceof Array) val = val.concat([]); nstate[n] = val; } return nstate; } CodeMirror.copyState = copyState; function startState(mode, a1, a2) { return mode.startState ? mode.startState(a1, a2) : true; } CodeMirror.startState = startState; // The character stream used by a mode's parser. function StringStream(string, tabSize) { this.pos = this.start = 0; this.string = string; this.tabSize = tabSize || 8; } StringStream.prototype = { eol: function() {return this.pos >= this.string.length;}, sol: function() {return this.pos == 0;}, peek: function() {return this.string.charAt(this.pos);}, next: function() { if (this.pos < this.string.length) return this.string.charAt(this.pos++); }, eat: function(match) { var ch = this.string.charAt(this.pos); if (typeof match == "string") var ok = ch == match; else var ok = ch && (match.test ? match.test(ch) : match(ch)); if (ok) {++this.pos; return ch;} }, eatWhile: function(match) { var start = this.pos; while (this.eat(match)){} return this.pos > start; }, eatSpace: function() { var start = this.pos; while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos; return this.pos > start; }, skipToEnd: function() {this.pos = this.string.length;}, skipTo: function(ch) { var found = this.string.indexOf(ch, this.pos); if (found > -1) {this.pos = found; return true;} }, backUp: function(n) {this.pos -= n;}, column: function() {return countColumn(this.string, this.start, this.tabSize);}, indentation: function() {return countColumn(this.string, null, this.tabSize);}, match: function(pattern, consume, caseInsensitive) { if (typeof pattern == "string") { function cased(str) {return caseInsensitive ? str.toLowerCase() : str;} if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) { if (consume !== false) this.pos += pattern.length; return true; } } else { var match = this.string.slice(this.pos).match(pattern); if (match && consume !== false) this.pos += match[0].length; return match; } }, current: function(){return this.string.slice(this.start, this.pos);} }; CodeMirror.StringStream = StringStream; function MarkedText(from, to, className, set) { this.from = from; this.to = to; this.style = className; this.set = set; } MarkedText.prototype = { attach: function(line) { this.set.push(line); }, detach: function(line) { var ix = indexOf(this.set, line); if (ix > -1) this.set.splice(ix, 1); }, split: function(pos, lenBefore) { if (this.to <= pos && this.to != null) return null; var from = this.from < pos || this.from == null ? null : this.from - pos + lenBefore; var to = this.to == null ? null : this.to - pos + lenBefore; return new MarkedText(from, to, this.style, this.set); }, dup: function() { return new MarkedText(null, null, this.style, this.set); }, clipTo: function(fromOpen, from, toOpen, to, diff) { if (this.from != null && this.from >= from) this.from = Math.max(to, this.from) + diff; if (this.to != null && this.to > from) this.to = to < this.to ? this.to + diff : from; if (fromOpen && to > this.from && (to < this.to || this.to == null)) this.from = null; if (toOpen && (from < this.to || this.to == null) && (from > this.from || this.from == null)) this.to = null; }, isDead: function() { return this.from != null && this.to != null && this.from >= this.to; }, sameSet: function(x) { return this.set == x.set; } }; function Bookmark(pos) { this.from = pos; this.to = pos; this.line = null; } Bookmark.prototype = { attach: function(line) { this.line = line; }, detach: function(line) { if (this.line == line) this.line = null; }, split: function(pos, lenBefore) { if (pos < this.from) { this.from = this.to = (this.from - pos) + lenBefore; return this; } }, isDead: function() { return this.from > this.to; }, clipTo: function(fromOpen, from, toOpen, to, diff) { if ((fromOpen || from < this.from) && (toOpen || to > this.to)) { this.from = 0; this.to = -1; } else if (this.from > from) { this.from = this.to = Math.max(to, this.from) + diff; } }, sameSet: function(x) { return false; }, find: function() { if (!this.line || !this.line.parent) return null; return {line: lineNo(this.line), ch: this.from}; }, clear: function() { if (this.line) { var found = indexOf(this.line.marked, this); if (found != -1) this.line.marked.splice(found, 1); this.line = null; } } }; // Line objects. These hold state related to a line, including // highlighting info (the styles array). function Line(text, styles) { this.styles = styles || [text, null]; this.text = text; this.height = 1; this.marked = this.gutterMarker = this.className = this.handlers = null; this.stateAfter = this.parent = this.hidden = null; } Line.inheritMarks = function(text, orig) { var ln = new Line(text), mk = orig && orig.marked; if (mk) { for (var i = 0; i < mk.length; ++i) { if (mk[i].to == null && mk[i].style) { var newmk = ln.marked || (ln.marked = []), mark = mk[i]; var nmark = mark.dup(); newmk.push(nmark); nmark.attach(ln); } } } return ln; } Line.prototype = { // Replace a piece of a line, keeping the styles around it intact. replace: function(from, to_, text) { var st = [], mk = this.marked, to = to_ == null ? this.text.length : to_; copyStyles(0, from, this.styles, st); if (text) st.push(text, null); copyStyles(to, this.text.length, this.styles, st); this.styles = st; this.text = this.text.slice(0, from) + text + this.text.slice(to); this.stateAfter = null; if (mk) { var diff = text.length - (to - from); for (var i = 0, mark = mk[i]; i < mk.length; ++i) { mark.clipTo(from == null, from || 0, to_ == null, to, diff); if (mark.isDead()) {mark.detach(this); mk.splice(i--, 1);} } } }, // Split a part off a line, keeping styles and markers intact. split: function(pos, textBefore) { var st = [textBefore, null], mk = this.marked; copyStyles(pos, this.text.length, this.styles, st); var taken = new Line(textBefore + this.text.slice(pos), st); if (mk) { for (var i = 0; i < mk.length; ++i) { var mark = mk[i]; var newmark = mark.split(pos, textBefore.length); if (newmark) { if (!taken.marked) taken.marked = []; taken.marked.push(newmark); newmark.attach(taken); } } } return taken; }, append: function(line) { var mylen = this.text.length, mk = line.marked, mymk = this.marked; this.text += line.text; copyStyles(0, line.text.length, line.styles, this.styles); if (mymk) { for (var i = 0; i < mymk.length; ++i) if (mymk[i].to == null) mymk[i].to = mylen; } if (mk && mk.length) { if (!mymk) this.marked = mymk = []; outer: for (var i = 0; i < mk.length; ++i) { var mark = mk[i]; if (!mark.from) { for (var j = 0; j < mymk.length; ++j) { var mymark = mymk[j]; if (mymark.to == mylen && mymark.sameSet(mark)) { mymark.to = mark.to == null ? null : mark.to + mylen; if (mymark.isDead()) { mymark.detach(this); mk.splice(i--, 1); } continue outer; } } } mymk.push(mark); mark.attach(this); mark.from += mylen; if (mark.to != null) mark.to += mylen; } } }, fixMarkEnds: function(other) { var mk = this.marked, omk = other.marked; if (!mk) return; for (var i = 0; i < mk.length; ++i) { var mark = mk[i], close = mark.to == null; if (close && omk) { for (var j = 0; j < omk.length; ++j) if (omk[j].sameSet(mark)) {close = false; break;} } if (close) mark.to = this.text.length; } }, fixMarkStarts: function() { var mk = this.marked; if (!mk) return; for (var i = 0; i < mk.length; ++i) if (mk[i].from == null) mk[i].from = 0; }, addMark: function(mark) { mark.attach(this); if (this.marked == null) this.marked = []; this.marked.push(mark); this.marked.sort(function(a, b){return (a.from || 0) - (b.from || 0);}); }, // Run the given mode's parser over a line, update the styles // array, which contains alternating fragments of text and CSS // classes. highlight: function(mode, state, tabSize) { var stream = new StringStream(this.text, tabSize), st = this.styles, pos = 0; var changed = false, curWord = st[0], prevWord; if (this.text == "" && mode.blankLine) mode.blankLine(state); while (!stream.eol()) { var style = mode.token(stream, state); var substr = this.text.slice(stream.start, stream.pos); stream.start = stream.pos; if (pos && st[pos-1] == style) st[pos-2] += substr; else if (substr) { if (!changed && (st[pos+1] != style || (pos && st[pos-2] != prevWord))) changed = true; st[pos++] = substr; st[pos++] = style; prevWord = curWord; curWord = st[pos]; } // Give up when line is ridiculously long if (stream.pos > 5000) { st[pos++] = this.text.slice(stream.pos); st[pos++] = null; break; } } if (st.length != pos) {st.length = pos; changed = true;} if (pos && st[pos-2] != prevWord) changed = true; // Short lines with simple highlights return null, and are // counted as changed by the driver because they are likely to // highlight the same way in various contexts. return changed || (st.length < 5 && this.text.length < 10 ? null : false); }, // Fetch the parser token for a given character. Useful for hacks // that want to inspect the mode state (say, for completion). getTokenAt: function(mode, state, ch) { var txt = this.text, stream = new StringStream(txt); while (stream.pos < ch && !stream.eol()) { stream.start = stream.pos; var style = mode.token(stream, state); } return {start: stream.start, end: stream.pos, string: stream.current(), className: style || null, state: state}; }, indentation: function(tabSize) {return countColumn(this.text, null, tabSize);}, // Produces an HTML fragment for the line, taking selection, // marking, and highlighting into account. getHTML: function(sfrom, sto, includePre, tabText, endAt) { var html = [], first = true; if (includePre) html.push(this.className ? '
': "
");
            function span(text, style) {
                if (!text) return;
                // Work around a bug where, in some compat modes, IE ignores leading spaces
                if (first && ie && text.charAt(0) == " ") text = "\u00a0" + text.slice(1);
                first = false;
                if (style) html.push('', htmlEscape(text).replace(/\t/g, tabText), "");
                else html.push(htmlEscape(text).replace(/\t/g, tabText));
            }
            var st = this.styles, allText = this.text, marked = this.marked;
            if (sfrom == sto) sfrom = null;
            var len = allText.length;
            if (endAt != null) len = Math.min(endAt, len);

            if (!allText && endAt == null)
                span(" ", sfrom != null && sto == null ? "CodeMirror-selected" : null);
            else if (!marked && sfrom == null)
                for (var i = 0, ch = 0; ch < len; i+=2) {
                    var str = st[i], style = st[i+1], l = str.length;
                    if (ch + l > len) str = str.slice(0, len - ch);
                    ch += l;
                    span(str, style && "cm-" + style);
                }
            else {
                var pos = 0, i = 0, text = "", style, sg = 0;
                var markpos = -1, mark = null;
                function nextMark() {
                    if (marked) {
                        markpos += 1;
                        mark = (markpos < marked.length) ? marked[markpos] : null;
                    }
                }
                nextMark();
                while (pos < len) {
                    var upto = len;
                    var extraStyle = "";
                    if (sfrom != null) {
                        if (sfrom > pos) upto = sfrom;
                        else if (sto == null || sto > pos) {
                            extraStyle = " CodeMirror-selected";
                            if (sto != null) upto = Math.min(upto, sto);
                        }
                    }
                    while (mark && mark.to != null && mark.to <= pos) nextMark();
                    if (mark) {
                        if (mark.from > pos) upto = Math.min(upto, mark.from);
                        else {
                            extraStyle += " " + mark.style;
                            if (mark.to != null) upto = Math.min(upto, mark.to);
                        }
                    }
                    for (;;) {
                        var end = pos + text.length;
                        var appliedStyle = style;
                        if (extraStyle) appliedStyle = style ? style + extraStyle : extraStyle;
                        span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
                        if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
                        pos = end;
                        text = st[i++]; style = "cm-" + st[i++];
                    }
                }
                if (sfrom != null && sto == null) span(" ", "CodeMirror-selected");
            }
            if (includePre) html.push("
"); return html.join(""); }, cleanUp: function() { this.parent = null; if (this.marked) for (var i = 0, e = this.marked.length; i < e; ++i) this.marked[i].detach(this); } }; // Utility used by replace and split above function copyStyles(from, to, source, dest) { for (var i = 0, pos = 0, state = 0; pos < to; i+=2) { var part = source[i], end = pos + part.length; if (state == 0) { if (end > from) dest.push(part.slice(from - pos, Math.min(part.length, to - pos)), source[i+1]); if (end >= from) state = 1; } else if (state == 1) { if (end > to) dest.push(part.slice(0, to - pos), source[i+1]); else dest.push(part, source[i+1]); } pos = end; } } // Data structure that holds the sequence of lines. function LeafChunk(lines) { this.lines = lines; this.parent = null; for (var i = 0, e = lines.length, height = 0; i < e; ++i) { lines[i].parent = this; height += lines[i].height; } this.height = height; } LeafChunk.prototype = { chunkSize: function() { return this.lines.length; }, remove: function(at, n, callbacks) { for (var i = at, e = at + n; i < e; ++i) { var line = this.lines[i]; this.height -= line.height; line.cleanUp(); if (line.handlers) for (var j = 0; j < line.handlers.length; ++j) callbacks.push(line.handlers[j]); } this.lines.splice(at, n); }, collapse: function(lines) { lines.splice.apply(lines, [lines.length, 0].concat(this.lines)); }, insertHeight: function(at, lines, height) { this.height += height; this.lines.splice.apply(this.lines, [at, 0].concat(lines)); for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this; }, iterN: function(at, n, op) { for (var e = at + n; at < e; ++at) if (op(this.lines[at])) return true; } }; function BranchChunk(children) { this.children = children; var size = 0, height = 0; for (var i = 0, e = children.length; i < e; ++i) { var ch = children[i]; size += ch.chunkSize(); height += ch.height; ch.parent = this; } this.size = size; this.height = height; this.parent = null; } BranchChunk.prototype = { chunkSize: function() { return this.size; }, remove: function(at, n, callbacks) { this.size -= n; for (var i = 0; i < this.children.length; ++i) { var child = this.children[i], sz = child.chunkSize(); if (at < sz) { var rm = Math.min(n, sz - at), oldHeight = child.height; child.remove(at, rm, callbacks); this.height -= oldHeight - child.height; if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } if ((n -= rm) == 0) break; at = 0; } else at -= sz; } if (this.size - n < 25) { var lines = []; this.collapse(lines); this.children = [new LeafChunk(lines)]; } }, collapse: function(lines) { for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines); }, insert: function(at, lines) { var height = 0; for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height; this.insertHeight(at, lines, height); }, insertHeight: function(at, lines, height) { this.size += lines.length; this.height += height; for (var i = 0, e = this.children.length; i < e; ++i) { var child = this.children[i], sz = child.chunkSize(); if (at <= sz) { child.insertHeight(at, lines, height); if (child.lines && child.lines.length > 50) { while (child.lines.length > 50) { var spilled = child.lines.splice(child.lines.length - 25, 25); var newleaf = new LeafChunk(spilled); child.height -= newleaf.height; this.children.splice(i + 1, 0, newleaf); newleaf.parent = this; } this.maybeSpill(); } break; } at -= sz; } }, maybeSpill: function() { if (this.children.length <= 10) return; var me = this; do { var spilled = me.children.splice(me.children.length - 5, 5); var sibling = new BranchChunk(spilled); if (!me.parent) { // Become the parent node var copy = new BranchChunk(me.children); copy.parent = me; me.children = [copy, sibling]; me = copy; } else { me.size -= sibling.size; me.height -= sibling.height; var myIndex = indexOf(me.parent.children, me); me.parent.children.splice(myIndex + 1, 0, sibling); } sibling.parent = me.parent; } while (me.children.length > 10); me.parent.maybeSpill(); }, iter: function(from, to, op) { this.iterN(from, to - from, op); }, iterN: function(at, n, op) { for (var i = 0, e = this.children.length; i < e; ++i) { var child = this.children[i], sz = child.chunkSize(); if (at < sz) { var used = Math.min(n, sz - at); if (child.iterN(at, used, op)) return true; if ((n -= used) == 0) break; at = 0; } else at -= sz; } } }; function getLineAt(chunk, n) { while (!chunk.lines) { for (var i = 0;; ++i) { var child = chunk.children[i], sz = child.chunkSize(); if (n < sz) { chunk = child; break; } n -= sz; } } return chunk.lines[n]; } function lineNo(line) { if (line.parent == null) return null; var cur = line.parent, no = indexOf(cur.lines, line); for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { for (var i = 0, e = chunk.children.length; ; ++i) { if (chunk.children[i] == cur) break; no += chunk.children[i].chunkSize(); } } return no; } function lineAtHeight(chunk, h) { var n = 0; outer: do { for (var i = 0, e = chunk.children.length; i < e; ++i) { var child = chunk.children[i], ch = child.height; if (h < ch) { chunk = child; continue outer; } h -= ch; n += child.chunkSize(); } return n; } while (!chunk.lines); for (var i = 0, e = chunk.lines.length; i < e; ++i) { var line = chunk.lines[i], lh = line.height; if (h < lh) break; h -= lh; } return n + i; } function heightAtLine(chunk, n) { var h = 0; outer: do { for (var i = 0, e = chunk.children.length; i < e; ++i) { var child = chunk.children[i], sz = child.chunkSize(); if (n < sz) { chunk = child; continue outer; } n -= sz; h += child.height; } return h; } while (!chunk.lines); for (var i = 0; i < n; ++i) h += chunk.lines[i].height; return h; } // The history object 'chunks' changes that are made close together // and at almost the same time into bigger undoable units. function History() { this.time = 0; this.done = []; this.undone = []; } History.prototype = { addChange: function(start, added, old) { this.undone.length = 0; var time = +new Date, last = this.done[this.done.length - 1]; if (time - this.time > 400 || !last || last.start > start + added || last.start + last.added < start - last.added + last.old.length) this.done.push({start: start, added: added, old: old}); else { var oldoff = 0; if (start < last.start) { for (var i = last.start - start - 1; i >= 0; --i) last.old.unshift(old[i]); last.added += last.start - start; last.start = start; } else if (last.start < start) { oldoff = start - last.start; added += oldoff; } for (var i = last.added - oldoff, e = old.length; i < e; ++i) last.old.push(old[i]); if (last.added < added) last.added = added; } this.time = time; } }; function stopMethod() {e_stop(this);} // Ensure an event has a stop method. function addStop(event) { if (!event.stop) event.stop = stopMethod; return event; } function e_preventDefault(e) { if (e.preventDefault) e.preventDefault(); else e.returnValue = false; } function e_stopPropagation(e) { if (e.stopPropagation) e.stopPropagation(); else e.cancelBubble = true; } function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} CodeMirror.e_stop = e_stop; CodeMirror.e_preventDefault = e_preventDefault; CodeMirror.e_stopPropagation = e_stopPropagation; function e_target(e) {return e.target || e.srcElement;} function e_button(e) { if (e.which) return e.which; else if (e.button & 1) return 1; else if (e.button & 2) return 3; else if (e.button & 4) return 2; } // Event handler registration. If disconnect is true, it'll return a // function that unregisters the handler. function connect(node, type, handler, disconnect) { if (typeof node.addEventListener == "function") { node.addEventListener(type, handler, false); if (disconnect) return function() {node.removeEventListener(type, handler, false);}; } else { var wrapHandler = function(event) {handler(event || window.event);}; node.attachEvent("on" + type, wrapHandler); if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);}; } } CodeMirror.connect = connect; function Delayed() {this.id = null;} Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}}; // Detect drag-and-drop var dragAndDrop = function() { // IE8 has ondragstart and ondrop properties, but doesn't seem to // actually support ondragstart the way it's supposed to work. if (/MSIE [1-8]\b/.test(navigator.userAgent)) return false; var div = document.createElement('div'); return "draggable" in div; }(); var gecko = /gecko\/\d{7}/i.test(navigator.userAgent); var ie = /MSIE \d/.test(navigator.userAgent); var webkit = /WebKit\//.test(navigator.userAgent); var lineSep = "\n"; // Feature-detect whether newlines in textareas are converted to \r\n (function () { var te = document.createElement("textarea"); te.value = "foo\nbar"; if (te.value.indexOf("\r") > -1) lineSep = "\r\n"; }()); // Counts the column offset in a string, taking tabs into account. // Used mostly to find indentation. function countColumn(string, end, tabSize) { if (end == null) { end = string.search(/[^\s\u00a0]/); if (end == -1) end = string.length; } for (var i = 0, n = 0; i < end; ++i) { if (string.charAt(i) == "\t") n += tabSize - (n % tabSize); else ++n; } return n; } function computedStyle(elt) { if (elt.currentStyle) return elt.currentStyle; return window.getComputedStyle(elt, null); } // Find the position of an element by following the offsetParent chain. // If screen==true, it returns screen (rather than page) coordinates. function eltOffset(node, screen) { var bod = node.ownerDocument.body; var x = 0, y = 0, skipBody = false; for (var n = node; n; n = n.offsetParent) { var ol = n.offsetLeft, ot = n.offsetTop; // Firefox reports weird inverted offsets when the body has a border. if (n == bod) { x += Math.abs(ol); y += Math.abs(ot); } else { x += ol, y += ot; } if (screen && computedStyle(n).position == "fixed") skipBody = true; } var e = screen && !skipBody ? null : bod; for (var n = node.parentNode; n != e; n = n.parentNode) if (n.scrollLeft != null) { x -= n.scrollLeft; y -= n.scrollTop;} return {left: x, top: y}; } // Use the faster and saner getBoundingClientRect method when possible. if (document.documentElement.getBoundingClientRect != null) eltOffset = function(node, screen) { // Take the parts of bounding client rect that we are interested in so we are able to edit if need be, // since the returned value cannot be changed externally (they are kept in sync as the element moves within the page) try { var box = node.getBoundingClientRect(); box = { top: box.top, left: box.left }; } catch(e) { box = {top: 0, left: 0}; } if (!screen) { // Get the toplevel scroll, working around browser differences. if (window.pageYOffset == null) { var t = document.documentElement || document.body.parentNode; if (t.scrollTop == null) t = document.body; box.top += t.scrollTop; box.left += t.scrollLeft; } else { box.top += window.pageYOffset; box.left += window.pageXOffset; } } return box; }; // Get a node's text content. function eltText(node) { return node.textContent || node.innerText || node.nodeValue || ""; } // Operations on {line, ch} objects. function posEq(a, b) {return a.line == b.line && a.ch == b.ch;} function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);} function copyPos(x) {return {line: x.line, ch: x.ch};} var escapeElement = document.createElement("pre"); function htmlEscape(str) { escapeElement.textContent = str; return escapeElement.innerHTML; } // Recent (late 2011) Opera betas insert bogus newlines at the start // of the textContent, so we strip those. if (htmlEscape("a") == "\na") htmlEscape = function(str) { escapeElement.textContent = str; return escapeElement.innerHTML.slice(1); }; // Some IEs don't preserve tabs through innerHTML else if (htmlEscape("\t") != "\t") htmlEscape = function(str) { escapeElement.innerHTML = ""; escapeElement.appendChild(document.createTextNode(str)); return escapeElement.innerHTML; }; CodeMirror.htmlEscape = htmlEscape; // Used to position the cursor after an undo/redo by finding the // last edited character. function editEnd(from, to) { if (!to) return from ? from.length : 0; if (!from) return to.length; for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j) if (from.charAt(i) != to.charAt(j)) break; return j + 1; } function indexOf(collection, elt) { if (collection.indexOf) return collection.indexOf(elt); for (var i = 0, e = collection.length; i < e; ++i) if (collection[i] == elt) return i; return -1; } function isWordChar(ch) { return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase(); } // See if "".split is the broken IE version, if so, provide an // alternative way to split lines. var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) { var pos = 0, nl, result = []; while ((nl = string.indexOf("\n", pos)) > -1) { result.push(string.slice(pos, string.charAt(nl-1) == "\r" ? nl - 1 : nl)); pos = nl + 1; } result.push(string.slice(pos)); return result; } : function(string){return string.split(/\r?\n/);}; CodeMirror.splitLines = splitLines; var hasSelection = window.getSelection ? function(te) { try { return te.selectionStart != te.selectionEnd; } catch(e) { return false; } } : function(te) { try {var range = te.ownerDocument.selection.createRange();} catch(e) {} if (!range || range.parentElement() != te) return false; return range.compareEndPoints("StartToEnd", range) != 0; }; CodeMirror.defineMode("null", function() { return {token: function(stream) {stream.skipToEnd();}}; }); CodeMirror.defineMIME("text/plain", "null"); var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", 46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", 221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home", 63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"}; CodeMirror.keyNames = keyNames; (function() { // Number keys for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i); // Alphabetic keys for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i); // Function keys for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i; })(); return CodeMirror; })(); CodeMirror.defineMode("xml", function(config, parserConfig) { var indentUnit = config.indentUnit; var Kludges = parserConfig.htmlMode ? { autoSelfClosers: {"br": true, "img": true, "hr": true, "link": true, "input": true, "meta": true, "col": true, "frame": true, "base": true, "area": true}, doNotIndent: {"pre": true}, allowUnquoted: true } : {autoSelfClosers: {}, doNotIndent: {}, allowUnquoted: false}; var alignCDATA = parserConfig.alignCDATA; // Return variables for tokenizers var tagName, type; function inText(stream, state) { function chain(parser) { state.tokenize = parser; return parser(stream, state); } var ch = stream.next(); if (ch == "<") { if (stream.eat("!")) { if (stream.eat("[")) { if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>")); else return null; } else if (stream.match("--")) return chain(inBlock("comment", "-->")); else if (stream.match("DOCTYPE", true, true)) { stream.eatWhile(/[\w\._\-]/); return chain(doctype(1)); } else return null; } else if (stream.eat("?")) { stream.eatWhile(/[\w\._\-]/); state.tokenize = inBlock("meta", "?>"); return "meta"; } else { type = stream.eat("/") ? "closeTag" : "openTag"; stream.eatSpace(); tagName = ""; var c; while ((c = stream.eat(/[^\s\u00a0=<>\"\'\/?]/))) tagName += c; state.tokenize = inTag; return "tag"; } } else if (ch == "&") { stream.eatWhile(/[^;]/); stream.eat(";"); return "atom"; } else { stream.eatWhile(/[^&<]/); return null; } } function inTag(stream, state) { var ch = stream.next(); if (ch == ">" || (ch == "/" && stream.eat(">"))) { state.tokenize = inText; type = ch == ">" ? "endTag" : "selfcloseTag"; return "tag"; } else if (ch == "=") { type = "equals"; return null; } else if (/[\'\"]/.test(ch)) { state.tokenize = inAttribute(ch); return state.tokenize(stream, state); } else { stream.eatWhile(/[^\s\u00a0=<>\"\'\/?]/); return "word"; } } function inAttribute(quote) { return function(stream, state) { while (!stream.eol()) { if (stream.next() == quote) { state.tokenize = inTag; break; } } return "string"; }; } function inBlock(style, terminator) { return function(stream, state) { while (!stream.eol()) { if (stream.match(terminator)) { state.tokenize = inText; break; } stream.next(); } return style; }; } function doctype(depth) { return function(stream, state) { var ch; while ((ch = stream.next()) != null) { if (ch == "<") { state.tokenize = doctype(depth + 1); return state.tokenize(stream, state); } else if (ch == ">") { if (depth == 1) { state.tokenize = inText; break; } else { state.tokenize = doctype(depth - 1); return state.tokenize(stream, state); } } } return "meta"; }; } var curState, setStyle; function pass() { for (var i = arguments.length - 1; i >= 0; i--) curState.cc.push(arguments[i]); } function cont() { pass.apply(null, arguments); return true; } function pushContext(tagName, startOfLine) { var noIndent = Kludges.doNotIndent.hasOwnProperty(tagName) || (curState.context && curState.context.noIndent); curState.context = { prev: curState.context, tagName: tagName, indent: curState.indented, startOfLine: startOfLine, noIndent: noIndent }; } function popContext() { if (curState.context) curState.context = curState.context.prev; } function element(type) { if (type == "openTag") { curState.tagName = tagName; return cont(attributes, endtag(curState.startOfLine)); } else if (type == "closeTag") { var err = false; if (curState.context) { err = curState.context.tagName != tagName; } else { err = true; } if (err) setStyle = "error"; return cont(endclosetag(err)); } return cont(); } function endtag(startOfLine) { return function(type) { if (type == "selfcloseTag" || (type == "endTag" && Kludges.autoSelfClosers.hasOwnProperty(curState.tagName.toLowerCase()))) return cont(); if (type == "endTag") {pushContext(curState.tagName, startOfLine); return cont();} return cont(); }; } function endclosetag(err) { return function(type) { if (err) setStyle = "error"; if (type == "endTag") { popContext(); return cont(); } setStyle = "error"; return cont(arguments.callee); } } function attributes(type) { if (type == "word") {setStyle = "attribute"; return cont(attributes);} if (type == "equals") return cont(attvalue, attributes); if (type == "string") {setStyle = "error"; return cont(attributes);} return pass(); } function attvalue(type) { if (type == "word" && Kludges.allowUnquoted) {setStyle = "string"; return cont();} if (type == "string") return cont(attvaluemaybe); return pass(); } function attvaluemaybe(type) { if (type == "string") return cont(attvaluemaybe); else return pass(); } return { startState: function() { return {tokenize: inText, cc: [], indented: 0, startOfLine: true, tagName: null, context: null}; }, token: function(stream, state) { if (stream.sol()) { state.startOfLine = true; state.indented = stream.indentation(); } if (stream.eatSpace()) return null; setStyle = type = tagName = null; var style = state.tokenize(stream, state); state.type = type; if ((style || type) && style != "comment") { curState = state; while (true) { var comb = state.cc.pop() || element; if (comb(type || style)) break; } } state.startOfLine = false; return setStyle || style; }, indent: function(state, textAfter, fullLine) { var context = state.context; if ((state.tokenize != inTag && state.tokenize != inText) || context && context.noIndent) return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0; if (alignCDATA && /!?|]/; function chain(stream, state, f) { state.tokenize = f; return f(stream, state); } function nextUntilUnescaped(stream, end) { var escaped = false, next; while ((next = stream.next()) != null) { if (next == end && !escaped) return false; escaped = !escaped && next == "\\"; } return escaped; } // Used as scratch variables to communicate multiple values without // consing up tons of objects. var type, content; function ret(tp, style, cont) { type = tp; content = cont; return style; } function jsTokenBase(stream, state) { var ch = stream.next(); if (ch == '"' || ch == "'") return chain(stream, state, jsTokenString(ch)); else if (/[\[\]{}\(\),;\:\.]/.test(ch)) return ret(ch); else if (ch == "0" && stream.eat(/x/i)) { stream.eatWhile(/[\da-f]/i); return ret("number", "number"); } else if (/\d/.test(ch)) { stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/); return ret("number", "number"); } else if (ch == "/") { if (stream.eat("*")) { return chain(stream, state, jsTokenComment); } else if (stream.eat("/")) { stream.skipToEnd(); return ret("comment", "comment"); } else if (state.reAllowed) { nextUntilUnescaped(stream, "/"); stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla return ret("regexp", "string"); } else { stream.eatWhile(isOperatorChar); return ret("operator", null, stream.current()); } } else if (ch == "#") { stream.skipToEnd(); return ret("error", "error"); } else if (isOperatorChar.test(ch)) { stream.eatWhile(isOperatorChar); return ret("operator", null, stream.current()); } else { stream.eatWhile(/[\w\$_]/); var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word]; return (known && state.kwAllowed) ? ret(known.type, known.style, word) : ret("variable", "variable", word); } } function jsTokenString(quote) { return function(stream, state) { if (!nextUntilUnescaped(stream, quote)) state.tokenize = jsTokenBase; return ret("string", "string"); }; } function jsTokenComment(stream, state) { var maybeEnd = false, ch; while (ch = stream.next()) { if (ch == "/" && maybeEnd) { state.tokenize = jsTokenBase; break; } maybeEnd = (ch == "*"); } return ret("comment", "comment"); } // Parser var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true}; function JSLexical(indented, column, type, align, prev, info) { this.indented = indented; this.column = column; this.type = type; this.prev = prev; this.info = info; if (align != null) this.align = align; } function inScope(state, varname) { for (var v = state.localVars; v; v = v.next) if (v.name == varname) return true; } function parseJS(state, style, type, content, stream) { var cc = state.cc; // Communicate our context to the combinators. // (Less wasteful than consing up a hundred closures on every call.) cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; if (!state.lexical.hasOwnProperty("align")) state.lexical.align = true; while(true) { var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement; if (combinator(type, content)) { while(cc.length && cc[cc.length - 1].lex) cc.pop()(); if (cx.marked) return cx.marked; if (type == "variable" && inScope(state, content)) return "variable-2"; return style; } } } // Combinator utils var cx = {state: null, column: null, marked: null, cc: null}; function pass() { for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]); } function cont() { pass.apply(null, arguments); return true; } function register(varname) { var state = cx.state; if (state.context) { cx.marked = "def"; for (var v = state.localVars; v; v = v.next) if (v.name == varname) return; state.localVars = {name: varname, next: state.localVars}; } } // Combinators var defaultVars = {name: "this", next: {name: "arguments"}}; function pushcontext() { if (!cx.state.context) cx.state.localVars = defaultVars; cx.state.context = {prev: cx.state.context, vars: cx.state.localVars}; } function popcontext() { cx.state.localVars = cx.state.context.vars; cx.state.context = cx.state.context.prev; } function pushlex(type, info) { var result = function() { var state = cx.state; state.lexical = new JSLexical(state.indented, cx.stream.column(), type, null, state.lexical, info) }; result.lex = true; return result; } function poplex() { var state = cx.state; if (state.lexical.prev) { if (state.lexical.type == ")") state.indented = state.lexical.indented; state.lexical = state.lexical.prev; } } poplex.lex = true; function expect(wanted) { return function expecting(type) { if (type == wanted) return cont(); else if (wanted == ";") return pass(); else return cont(arguments.callee); }; } function statement(type) { if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex); if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex); if (type == "keyword b") return cont(pushlex("form"), statement, poplex); if (type == "{") return cont(pushlex("}"), block, poplex); if (type == ";") return cont(); if (type == "function") return cont(functiondef); if (type == "for") return cont(pushlex("form"), expect("("), pushlex(")"), forspec1, expect(")"), poplex, statement, poplex); if (type == "variable") return cont(pushlex("stat"), maybelabel); if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"), block, poplex, poplex); if (type == "case") return cont(expression, expect(":")); if (type == "default") return cont(expect(":")); if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"), statement, poplex, popcontext); return pass(pushlex("stat"), expression, expect(";"), poplex); } function expression(type) { if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator); if (type == "function") return cont(functiondef); if (type == "keyword c") return cont(maybeexpression); if (type == "(") return cont(pushlex(")"), expression, expect(")"), poplex, maybeoperator); if (type == "operator") return cont(expression); if (type == "[") return cont(pushlex("]"), commasep(expression, "]"), poplex, maybeoperator); if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeoperator); return cont(); } function maybeexpression(type) { if (type.match(/[;\}\)\],]/)) return pass(); return pass(expression); } function maybeoperator(type, value) { if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator); if (type == "operator") return cont(expression); if (type == ";") return; if (type == "(") return cont(pushlex(")"), commasep(expression, ")"), poplex, maybeoperator); if (type == ".") return cont(property, maybeoperator); if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, maybeoperator); } function maybelabel(type) { if (type == ":") return cont(poplex, statement); return pass(maybeoperator, expect(";"), poplex); } function property(type) { if (type == "variable") {cx.marked = "property"; return cont();} } function objprop(type) { if (type == "variable") cx.marked = "property"; if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expression); } function commasep(what, end) { function proceed(type) { if (type == ",") return cont(what, proceed); if (type == end) return cont(); return cont(expect(end)); } return function commaSeparated(type) { if (type == end) return cont(); else return pass(what, proceed); }; } function block(type) { if (type == "}") return cont(); return pass(statement, block); } function vardef1(type, value) { if (type == "variable"){register(value); return cont(vardef2);} return cont(); } function vardef2(type, value) { if (value == "=") return cont(expression, vardef2); if (type == ",") return cont(vardef1); } function forspec1(type) { if (type == "var") return cont(vardef1, forspec2); if (type == ";") return pass(forspec2); if (type == "variable") return cont(formaybein); return pass(forspec2); } function formaybein(type, value) { if (value == "in") return cont(expression); return cont(maybeoperator, forspec2); } function forspec2(type, value) { if (type == ";") return cont(forspec3); if (value == "in") return cont(expression); return cont(expression, expect(";"), forspec3); } function forspec3(type) { if (type != ")") cont(expression); } function functiondef(type, value) { if (type == "variable") {register(value); return cont(functiondef);} if (type == "(") return cont(pushlex(")"), pushcontext, commasep(funarg, ")"), poplex, statement, popcontext); } function funarg(type, value) { if (type == "variable") {register(value); return cont();} } // Interface return { startState: function(basecolumn) { return { tokenize: jsTokenBase, reAllowed: true, kwAllowed: true, cc: [], lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false), localVars: null, context: null, indented: 0 }; }, token: function(stream, state) { if (stream.sol()) { if (!state.lexical.hasOwnProperty("align")) state.lexical.align = false; state.indented = stream.indentation(); } if (stream.eatSpace()) return null; var style = state.tokenize(stream, state); if (type == "comment") return style; state.reAllowed = type == "operator" || type == "keyword c" || type.match(/^[\[{}\(,;:]$/); state.kwAllowed = type != '.'; return parseJS(state, style, type, content, stream); }, indent: function(state, textAfter) { if (state.tokenize != jsTokenBase) return 0; var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, type = lexical.type, closing = firstChar == type; if (type == "vardef") return lexical.indented + 4; else if (type == "form" && firstChar == "{") return lexical.indented; else if (type == "stat" || type == "form") return lexical.indented + indentUnit; else if (lexical.info == "switch" && !closing) return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit); else if (lexical.align) return lexical.column + (closing ? 0 : 1); else return lexical.indented + (closing ? 0 : indentUnit); }, electricChars: ":{}" }; }); CodeMirror.defineMIME("text/javascript", "javascript"); CodeMirror.defineMIME("application/json", {name: "javascript", json: true}); CodeMirror.defineMode("css", function(config) { var indentUnit = config.indentUnit, type; function ret(style, tp) {type = tp; return style;} function tokenBase(stream, state) { var ch = stream.next(); if (ch == "@") {stream.eatWhile(/[\w\\\-]/); return ret("meta", stream.current());} else if (ch == "/" && stream.eat("*")) { state.tokenize = tokenCComment; return tokenCComment(stream, state); } else if (ch == "<" && stream.eat("!")) { state.tokenize = tokenSGMLComment; return tokenSGMLComment(stream, state); } else if (ch == "=") ret(null, "compare"); else if ((ch == "~" || ch == "|") && stream.eat("=")) return ret(null, "compare"); else if (ch == "\"" || ch == "'") { state.tokenize = tokenString(ch); return state.tokenize(stream, state); } else if (ch == "#") { stream.eatWhile(/[\w\\\-]/); return ret("atom", "hash"); } else if (ch == "!") { stream.match(/^\s*\w*/); return ret("keyword", "important"); } else if (/\d/.test(ch)) { stream.eatWhile(/[\w.%]/); return ret("number", "unit"); } else if (/[,.+>*\/]/.test(ch)) { return ret(null, "select-op"); } else if (/[;{}:\[\]]/.test(ch)) { return ret(null, ch); } else { stream.eatWhile(/[\w\\\-]/); return ret("variable", "variable"); } } function tokenCComment(stream, state) { var maybeEnd = false, ch; while ((ch = stream.next()) != null) { if (maybeEnd && ch == "/") { state.tokenize = tokenBase; break; } maybeEnd = (ch == "*"); } return ret("comment", "comment"); } function tokenSGMLComment(stream, state) { var dashes = 0, ch; while ((ch = stream.next()) != null) { if (dashes >= 2 && ch == ">") { state.tokenize = tokenBase; break; } dashes = (ch == "-") ? dashes + 1 : 0; } return ret("comment", "comment"); } function tokenString(quote) { return function(stream, state) { var escaped = false, ch; while ((ch = stream.next()) != null) { if (ch == quote && !escaped) break; escaped = !escaped && ch == "\\"; } if (!escaped) state.tokenize = tokenBase; return ret("string", "string"); }; } return { startState: function(base) { return {tokenize: tokenBase, baseIndent: base || 0, stack: []}; }, token: function(stream, state) { if (stream.eatSpace()) return null; var style = state.tokenize(stream, state); var context = state.stack[state.stack.length-1]; if (type == "hash" && context == "rule") style = "atom"; else if (style == "variable") { if (context == "rule") style = "number"; else if (!context || context == "@media{") style = "tag"; } if (context == "rule" && /^[\{\};]$/.test(type)) state.stack.pop(); if (type == "{") { if (context == "@media") state.stack[state.stack.length-1] = "@media{"; else state.stack.push("{"); } else if (type == "}") state.stack.pop(); else if (type == "@media") state.stack.push("@media"); else if (context == "{" && type != "comment") state.stack.push("rule"); return style; }, indent: function(state, textAfter) { var n = state.stack.length; if (/^\}/.test(textAfter)) n -= state.stack[state.stack.length-1] == "rule" ? 2 : 1; return state.baseIndent + n * indentUnit; }, electricChars: "}" }; }); CodeMirror.defineMIME("text/css", "css"); CodeMirror.defineMode("htmlmixed", function(config, parserConfig) { var htmlMode = CodeMirror.getMode(config, {name: "xml", htmlMode: true}); var jsMode = CodeMirror.getMode(config, "javascript"); var cssMode = CodeMirror.getMode(config, "css"); function html(stream, state) { var style = htmlMode.token(stream, state.htmlState); if (style == "tag" && stream.current() == ">" && state.htmlState.context) { if (/^script$/i.test(state.htmlState.context.tagName)) { state.token = javascript; state.localState = jsMode.startState(htmlMode.indent(state.htmlState, "")); state.mode = "javascript"; } else if (/^style$/i.test(state.htmlState.context.tagName)) { state.token = css; state.localState = cssMode.startState(htmlMode.indent(state.htmlState, "")); state.mode = "css"; } } return style; } function maybeBackup(stream, pat, style) { var cur = stream.current(); var close = cur.search(pat); if (close > -1) stream.backUp(cur.length - close); return style; } function javascript(stream, state) { if (stream.match(/^<\/\s*script\s*>/i, false)) { state.token = html; state.curState = null; state.mode = "html"; return html(stream, state); } return maybeBackup(stream, /<\/\s*script\s*>/, jsMode.token(stream, state.localState)); } function css(stream, state) { if (stream.match(/^<\/\s*style\s*>/i, false)) { state.token = html; state.localState = null; state.mode = "html"; return html(stream, state); } return maybeBackup(stream, /<\/\s*style\s*>/, cssMode.token(stream, state.localState)); } return { startState: function() { var state = htmlMode.startState(); return {token: html, localState: null, mode: "html", htmlState: state}; }, copyState: function(state) { if (state.localState) var local = CodeMirror.copyState(state.token == css ? cssMode : jsMode, state.localState); return {token: state.token, localState: local, mode: state.mode, htmlState: CodeMirror.copyState(htmlMode, state.htmlState)}; }, token: function(stream, state) { return state.token(stream, state); }, indent: function(state, textAfter) { if (state.token == html || /^\s*<\//.test(textAfter)) return htmlMode.indent(state.htmlState, textAfter); else if (state.token == javascript) return jsMode.indent(state.localState, textAfter); else return cssMode.indent(state.localState, textAfter); }, compareStates: function(a, b) { return htmlMode.compareStates(a.htmlState, b.htmlState); }, electricChars: "/{}:" } }); CodeMirror.defineMIME("text/html", "htmlmixed");