This will run three parsers on the source code of jQuery 1.6.4 and CodeMirror 3.0b1, and show the number of lines parsed per second for each of the parsers in a table.
+ + + + diff --git a/test/codemirror-string.js b/test/codemirror-string.js new file mode 100644 index 0000000000..4c4dab9d03 --- /dev/null +++ b/test/codemirror-string.js @@ -0,0 +1,3995 @@ +codemirror30 = "// All functions that need access to the editor's state live inside\n\ +// the CodeMirror function. Below that, at the bottom of the file,\n\ +// some utilities are defined.\n\ +\n\ +// CodeMirror is the only global var we claim\n\ +window.CodeMirror = (function() {\n\ + \"use strict\";\n\ +\n\ + // BROWSER SNIFFING\n\ +\n\ + // Crude, but necessary to handle a number of hard-to-feature-detect\n\ + // bugs and behavior differences.\n\ + var gecko = /gecko\\/\\d{7}/i.test(navigator.userAgent);\n\ + var ie = /MSIE \\d/.test(navigator.userAgent);\n\ + var ie_lt8 = /MSIE [1-7]\\b/.test(navigator.userAgent);\n\ + var ie_lt9 = /MSIE [1-8]\\b/.test(navigator.userAgent);\n\ + var webkit = /WebKit\\//.test(navigator.userAgent);\n\ + var chrome = /Chrome\\//.test(navigator.userAgent);\n\ + var opera = /Opera\\//.test(navigator.userAgent);\n\ + var safari = /Apple Computer/.test(navigator.vendor);\n\ + var khtml = /KHTML\\//.test(navigator.userAgent);\n\ + var mac_geLion = /Mac OS X 10\\D([7-9]|\\d\\d)\\D/.test(navigator.userAgent);\n\ +\n\ + var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\\/\\w+/.test(navigator.userAgent);\n\ + var mac = ios || /Mac/.test(navigator.platform);\n\ + var win = /Win/.test(navigator.platform);\n\ +\n\ + // CONSTRUCTOR\n\ +\n\ + function CodeMirror(place, options) {\n\ + if (!(this instanceof CodeMirror)) return new CodeMirror(place, options, true);\n\ + \n\ + this.options = options = options || {};\n\ + // Determine effective options based on given values and defaults.\n\ + for (var opt in defaults) if (!options.hasOwnProperty(opt) && defaults.hasOwnProperty(opt))\n\ + options[opt] = defaults[opt];\n\ + setGuttersForLineNumbers(options);\n\ +\n\ + var display = this.display = makeDisplay(place);\n\ + display.wrapper.CodeMirror = this;\n\ + updateGutters(this);\n\ + themeChanged(this);\n\ + keyMapChanged(this);\n\ + if (options.tabindex != null) display.input.tabIndex = options.tabindex;\n\ + if (options.autofocus) focusInput(this);\n\ + if (options.lineWrapping) display.wrapper.className += \" CodeMirror-wrap\";\n\ +\n\ + var doc = new BranchChunk([new LeafChunk([new Line(\"\", null, textHeight(display))])]);\n\ + // frontier is the point up to which the content has been parsed,\n\ + doc.frontier = 0;\n\ + doc.highlight = new Delayed();\n\ + doc.tabSize = options.tabSize;\n\ + // The selection. These are always maintained to point at valid\n\ + // positions. Inverted is used to remember that the user is\n\ + // selecting bottom-to-top.\n\ + this.view = {\n\ + doc: doc,\n\ + sel: {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false, shift: false},\n\ + scrollTop: 0, scrollLeft: 0,\n\ + overwrite: false, focused: false,\n\ + // Tracks the maximum line length so that\n\ + // the horizontal scrollbar can be kept\n\ + // static when scrolling.\n\ + maxLine: getLine(doc, 0),\n\ + maxLineChanged: false,\n\ + suppressEdits: false,\n\ + goalColumn: null\n\ + };\n\ + loadMode(this);\n\ +\n\ + // Initialize the content.\n\ + this.setValue(options.value || \"\");\n\ + doc.history = new History();\n\ +\n\ + registerEventHandlers(this);\n\ + // IE throws unspecified error in certain cases, when\n\ + // trying to access activeElement before onload\n\ + var hasFocus; try { hasFocus = (document.activeElement == display.input); } catch(e) { }\n\ + if (hasFocus || options.autofocus) setTimeout(bind(onFocus, this), 20);\n\ + else onBlur(this);\n\ +\n\ + for (var opt in optionHandlers)\n\ + if (optionHandlers.propertyIsEnumerable(opt))\n\ + optionHandlers[opt](this, options[opt]);\n\ + }\n\ +\n\ + // DISPLAY CONSTRUCTOR\n\ +\n\ + function makeDisplay(place) {\n\ + var d = {};\n\ + var input = d.input = elt(\"textarea\", null, null, \"position: absolute; padding: 0; width: 1px; height: 1em; outline: none;\");\n\ + input.setAttribute(\"wrap\", \"off\"); input.setAttribute(\"autocorrect\", \"off\"); input.setAttribute(\"autocapitalize\", \"off\");\n\ + // Wraps and hides input textarea\n\ + d.inputDiv = elt(\"div\", [input], null, \"overflow: hidden; position: relative; width: 3px; height: 0px;\");\n\ + // The actual fake scrollbars.\n\ + d.scrollbarH = elt(\"div\", [elt(\"div\", null, null, \"height: 1px\")], \"CodeMirror-hscrollbar\");\n\ + d.scrollbarV = elt(\"div\", [elt(\"div\", null, null, \"width: 1px\")], \"CodeMirror-vscrollbar\");\n\ + d.scrollbarFiller = elt(\"div\", null, \"CodeMirror-scrollbar-filler\");\n\ + // DIVs containing the selection and the actual code\n\ + d.lineDiv = elt(\"div\");\n\ + d.selectionDiv = elt(\"div\", null, null, \"position: relative; z-index: 1\");\n\ + // Blinky cursor, and element used to ensure cursor fits at the end of a line\n\ + d.cursor = elt(\"pre\", \"\\u00a0\", \"CodeMirror-cursor\");\n\ + // Secondary cursor, shown when on a 'jump' in bi-directional text\n\ + d.otherCursor = elt(\"pre\", \"\\u00a0\", \"CodeMirror-cursor CodeMirror-secondarycursor\");\n\ + // Used to measure text size\n\ + d.measure = elt(\"div\", null, \"CodeMirror-measure\");\n\ + // Wraps everything that needs to exist inside the vertically-padded coordinate system\n\ + d.lineSpace = elt(\"div\", [d.measure, d.cursor, d.otherCursor, d.selectionDiv, d.lineDiv],\n\ + null, \"position: relative; outline: none\");\n\ + // Moved around its parent to cover visible view\n\ + d.mover = elt(\"div\", [elt(\"div\", [d.lineSpace], \"CodeMirror-lines\")], null, \"position: relative\");\n\ + d.gutters = elt(\"div\", null, \"CodeMirror-gutters\");\n\ + d.lineGutter = null;\n\ + // Set to the height of the text, causes scrolling\n\ + d.sizer = elt(\"div\", [d.mover], \"CodeMirror-sizer\");\n\ + // D is needed because behavior of elts with overflow: auto and padding is inconsistent across browsers\n\ + d.heightForcer = elt(\"div\", \"\\u00a0\", null, \"position: absolute; height: \" + scrollerCutOff + \"px\");\n\ + // Provides scrolling\n\ + d.scroller = elt(\"div\", [d.sizer, d.heightForcer], \"CodeMirror-scroll\");\n\ + d.scroller.setAttribute(\"tabIndex\", \"-1\");\n\ + // The element in which the editor lives.\n\ + d.wrapper = elt(\"div\", [d.gutters, d.inputDiv, d.scrollbarH, d.scrollbarV,\n\ + d.scrollbarFiller, d.scroller], \"CodeMirror\");\n\ + // Work around IE7 z-index bug\n\ + if (ie_lt8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }\n\ + if (place.appendChild) place.appendChild(d.wrapper); else place(d.wrapper);\n\ +\n\ + // Needed to hide big blue blinking cursor on Mobile Safari\n\ + if (ios) input.style.width = \"0px\";\n\ + if (!webkit) d.scroller.draggable = true;\n\ + // Needed to handle Tab key in KHTML\n\ + if (khtml) { d.inputDiv.style.height = \"1px\"; d.inputDiv.style.position = \"absolute\"; }\n\ + // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).\n\ + else if (ie_lt8) d.scrollbarH.style.minWidth = d.scrollbarV.style.minWidth = \"18px\";\n\ +\n\ + // Current visible range (may be bigger than the view window).\n\ + d.viewOffset = d.showingFrom = d.showingTo = d.lastSizeC = 0;\n\ +\n\ + // Used to only resize the line number gutter when necessary (when\n\ + // the amount of lines crosses a boundary that makes its width change)\n\ + d.lineNumWidth = d.lineNumChars = null;\n\ + // See readInput and resetInput\n\ + d.prevInput = \"\";\n\ + // Set to true when a non-horizontal-scrolling widget is added. As\n\ + // an optimization, widget aligning is skipped when d is false.\n\ + d.alignWidgets = false;\n\ + // Flag that indicates whether we currently expect input to appear\n\ + // (after some event like 'keypress' or 'input') and are polling\n\ + // intensively.\n\ + d.pollingFast = false;\n\ + // Self-resetting timeout for the poller\n\ + d.poll = new Delayed();\n\ + // True when a drag from the editor is active\n\ + d.draggingText = false;\n\ +\n\ + d.cachedCharWidth = d.cachedTextHeight = null;\n\ + d.measureLineCache = [];\n\ + d.measureLineCache.pos = 0;\n\ +\n\ + // Tracks when resetInput has punted to just putting a short\n\ + // string instead of the (large) selection.\n\ + d.inaccurateSelection = false;\n\ +\n\ + return d;\n\ + }\n\ +\n\ + // STATE UPDATES\n\ +\n\ + // Used to get the editor into a consistent state again when options change.\n\ +\n\ + function loadMode(cm) {\n\ + var doc = cm.view.doc;\n\ + doc.mode = CodeMirror.getMode(cm.options, cm.options.mode);\n\ + doc.iter(0, doc.size, function(line) { line.stateAfter = null; });\n\ + doc.frontier = 0;\n\ + startWorker(cm, 100);\n\ + }\n\ +\n\ + function wrappingChanged(cm) {\n\ + var doc = cm.view.doc;\n\ + if (cm.options.lineWrapping) {\n\ + cm.display.wrapper.className += \" CodeMirror-wrap\";\n\ + var perLine = cm.display.wrapper.clientWidth / charWidth(cm.display) - 3;\n\ + doc.iter(0, doc.size, function(line) {\n\ + if (line.hidden) return;\n\ + var guess = Math.ceil(line.text.length / perLine) || 1;\n\ + if (guess != 1) updateLineHeight(line, guess);\n\ + });\n\ + cm.display.sizer.style.minWidth = \"\";\n\ + } else {\n\ + cm.display.wrapper.className = cm.display.wrapper.className.replace(\" CodeMirror-wrap\", \"\");\n\ + computeMaxLength(cm.view);\n\ + doc.iter(0, doc.size, function(line) {\n\ + if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);\n\ + });\n\ + }\n\ + regChange(cm, 0, doc.size);\n\ + }\n\ +\n\ + function keyMapChanged(cm) {\n\ + var style = keyMap[cm.options.keyMap].style;\n\ + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\\s*cm-keymap-\\S+/g, \"\") +\n\ + (style ? \" cm-keymap-\" + style : \"\");\n\ + }\n\ +\n\ + function themeChanged(cm) {\n\ + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\\s*cm-s-\\S+/g, \"\") +\n\ + cm.options.theme.replace(/(^|\\s)\\s*/g, \" cm-s-\");\n\ + }\n\ +\n\ + function guttersChanged(cm) {\n\ + updateGutters(cm);\n\ + updateDisplay(cm, true);\n\ + }\n\ +\n\ + function updateGutters(cm) {\n\ + var gutters = cm.display.gutters, specs = cm.options.gutters;\n\ + removeChildren(gutters);\n\ + for (var i = 0; i < specs.length; ++i) {\n\ + var gutterClass = specs[i];\n\ + var gElt = gutters.appendChild(elt(\"div\", null, \"CodeMirror-gutter \" + gutterClass));\n\ + if (gutterClass == \"CodeMirror-linenumbers\") {\n\ + cm.display.lineGutter = gElt;\n\ + gElt.style.width = (cm.display.lineNumWidth || 1) + \"px\";\n\ + }\n\ + }\n\ + gutters.style.display = i ? \"\" : \"none\";\n\ + }\n\ +\n\ + function computeMaxLength(view) {\n\ + view.maxLine = getLine(view.doc, 0); view.maxLineChanged = true;\n\ + var maxLineLength = view.maxLine.text.length;\n\ + view.doc.iter(1, view.doc.size, function(line) {\n\ + var l = line.text;\n\ + if (!line.hidden && l.length > maxLineLength) {\n\ + maxLineLength = l.length; view.maxLine = line;\n\ + }\n\ + });\n\ + }\n\ +\n\ + // Make sure the gutters options contains the element\n\ + // \"CodeMirror-linenumbers\" when the lineNumbers option is true.\n\ + function setGuttersForLineNumbers(options) {\n\ + var found = false;\n\ + for (var i = 0; i < options.gutters.length; ++i) {\n\ + if (options.gutters[i] == \"CodeMirror-linenumbers\") {\n\ + if (options.lineNumbers) found = true;\n\ + else options.gutters.splice(i--, 1);\n\ + }\n\ + }\n\ + if (!found && options.lineNumbers)\n\ + options.gutters.push(\"CodeMirror-linenumbers\");\n\ + }\n\ +\n\ + // SCROLLBARS\n\ +\n\ + // Re-synchronize the fake scrollbars with the actual size of the\n\ + // content. Optionally force a scrollTop.\n\ + function updateScrollbars(d /* display */, docHeight, scrollTop) {\n\ + d.sizer.style.minHeight = d.heightForcer.style.top = (docHeight + 2 * paddingTop(d)) + \"px\";\n\ + var needsH = d.scroller.scrollWidth > d.scroller.clientWidth;\n\ + var needsV = d.scroller.scrollHeight > d.scroller.clientHeight;\n\ + if (needsV) {\n\ + d.scrollbarV.style.display = \"block\";\n\ + d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + \"px\" : \"0\";\n\ + d.scrollbarV.firstChild.style.height = \n\ + (d.scroller.scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight) + \"px\";\n\ + if (scrollTop != null) {\n\ + d.scrollbarV.scrollTop = d.scroller.scrollTop = scrollTop;\n\ + // 'Nudge' the scrollbar to work around a Webkit bug where,\n\ + // in some situations, we'd end up with a scrollbar that\n\ + // reported its scrollTop (and looked) as expected, but\n\ + // *behaved* as if it was still in a previous state (i.e.\n\ + // couldn't scroll up, even though it appeared to be at the\n\ + // bottom).\n\ + if (webkit) setTimeout(function() {\n\ + if (d.scrollbarV.scrollTop != scrollTop) return;\n\ + d.scrollbarV.scrollTop = scrollTop + (scrollTop ? -1 : 1);\n\ + d.scrollbarV.scrollTop = scrollTop;\n\ + }, 0);\n\ + }\n\ + } else d.scrollbarV.style.display = \"\";\n\ + if (needsH) {\n\ + d.scrollbarH.style.display = \"block\";\n\ + d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + \"px\" : \"0\";\n\ + d.scrollbarH.firstChild.style.width =\n\ + (d.scroller.scrollWidth - d.scroller.clientWidth + d.scrollbarH.clientWidth) + \"px\";\n\ + } else d.scrollbarH.style.display = \"\";\n\ + if (needsH && needsV) {\n\ + d.scrollbarFiller.style.display = \"block\";\n\ + d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + \"px\";\n\ + } else d.scrollbarFiller.style.display = \"\";\n\ +\n\ + if (mac_geLion && scrollbarWidth(d.measure) === 0)\n\ + d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = \"12px\";\n\ + }\n\ +\n\ + function visibleLines(display, doc, scrollTop) {\n\ + var top = (scrollTop != null ? scrollTop : display.scroller.scrollTop) - paddingTop(display);\n\ + var fromHeight = Math.max(0, Math.floor(top));\n\ + var toHeight = Math.ceil(top + display.wrapper.clientHeight);\n\ + return {from: lineAtHeight(doc, fromHeight),\n\ + to: lineAtHeight(doc, toHeight)};\n\ + }\n\ +\n\ + // LINE NUMBERS\n\ +\n\ + function alignLineNumbers(display) {\n\ + if (display.alignWidgets) {\n\ + var margin = compensateForHScroll(display);\n\ + for (var n = display.lineDiv.firstChild; n; n = n.nextSibling)\n\ + for (var c = n.lastChild; c && c.widget; c = c.prevSibling)\n\ + if (c.widget.noHScroll)\n\ + c.style.marginLeft = (c.widget.coverGutter ? margin : margin + display.gutters.offsetWidth) + \"px\";\n\ + }\n\ + if (!display.lineGutter) return;\n\ + var l = lineNumberLeftPos(display) + \"px\";\n\ + for (var n = display.lineDiv.firstChild; n; n = n.nextSibling)\n\ + n.firstChild.style.left = l;\n\ + }\n\ +\n\ + function maybeUpdateLineNumberWidth(cm) {\n\ + if (!cm.options.lineNumbers) return false;\n\ + var doc = cm.view.doc, last = lineNumberFor(cm.options, doc.size - 1), display = cm.display;\n\ + if (last.length != display.lineNumChars) {\n\ + var test = display.measure.appendChild(elt(\"div\", [elt(\"div\", last)],\n\ + \"CodeMirror-linenumber CodeMirror-gutter-elt\"));\n\ + display.lineNumWidth = test.firstChild.offsetWidth;\n\ + display.lineNumChars = display.lineNumWidth ? last.length : -1;\n\ + display.lineGutter.style.width = display.lineNumWidth + \"px\";\n\ + return true;\n\ + }\n\ + return false;\n\ + }\n\ +\n\ + function lineNumberFor(options, i) {\n\ + return String(options.lineNumberFormatter(i + options.firstLineNumber));\n\ + }\n\ + function compensateForHScroll(display) {\n\ + return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;\n\ + }\n\ + function lineNumberLeftPos(display) {\n\ + return compensateForHScroll(display) + display.lineGutter.offsetLeft;\n\ + }\n\ +\n\ + // DISPLAY DRAWING\n\ +\n\ + function updateDisplay(cm, changes, scrollTop) {\n\ + var oldFrom = cm.display.showingFrom, oldTo = cm.display.showingTo;\n\ + var updated = updateDisplayInner(cm, changes, scrollTop);\n\ + if (updated) {\n\ + signalLater(cm, cm, \"update\", cm);\n\ + if (cm.display.showingFrom != oldFrom || cm.display.showingTo != oldTo)\n\ + signalLater(cm, cm, \"update\", cm, cm.display.showingFrom, cm.display.showingTo);\n\ + }\n\ + updateSelection(cm);\n\ + updateScrollbars(cm.display, cm.view.doc.height, scrollTop);\n\ + return updated;\n\ + }\n\ +\n\ + // Uses a set of changes plus the current scroll position to\n\ + // determine which DOM updates have to be made, and makes the\n\ + // updates.\n\ + function updateDisplayInner(cm, changes, scrollTop) {\n\ + var display = cm.display, doc = cm.view.doc;\n\ + if (!display.wrapper.clientWidth) {\n\ + display.showingFrom = display.showingTo = display.viewOffset = 0;\n\ + return;\n\ + }\n\ +\n\ + // Compute the new visible window\n\ + // If scrollTop is specified, use that to determine which lines\n\ + // to render instead of the current scrollbar position.\n\ + var visible = visibleLines(display, doc, scrollTop);\n\ + // Bail out if the visible area is already rendered and nothing changed.\n\ + if (changes !== true && changes.length == 0 &&\n\ + visible.from > display.showingFrom && visible.to < display.showingTo)\n\ + return;\n\ +\n\ + if (changes && changes !== true && maybeUpdateLineNumberWidth(cm))\n\ + changes = true;\n\ + display.sizer.style.marginLeft = display.scrollbarH.style.left = display.gutters.offsetWidth + \"px\";\n\ + // Used to determine which lines need their line numbers updated\n\ + var positionsChangedFrom = changes === true ? 0 : Infinity;\n\ + if (cm.options.lineNumbers && changes && changes !== true)\n\ + for (var i = 0; i < changes.length; ++i)\n\ + if (changes[i].diff) { positionsChangedFrom = changes[i].from; break; }\n\ +\n\ + var from = Math.max(visible.from - 100, 0), to = Math.min(doc.size, visible.to + 100);\n\ + if (display.showingFrom < from && from - display.showingFrom < 20) from = display.showingFrom;\n\ + if (display.showingTo > to && display.showingTo - to < 20) to = Math.min(doc.size, display.showingTo);\n\ +\n\ + // Create a range of theoretically intact lines, and punch holes\n\ + // in that using the change info.\n\ + var intact = changes === true ? [] :\n\ + computeIntact([{from: display.showingFrom, to: display.showingTo, domStart: 0}], changes);\n\ + // Clip off the parts that won't be visible\n\ + var intactLines = 0;\n\ + for (var i = 0; i < intact.length; ++i) {\n\ + var range = intact[i];\n\ + if (range.from < from) {range.domStart += (from - range.from); range.from = from;}\n\ + if (range.to > to) range.to = to;\n\ + if (range.from >= range.to) intact.splice(i--, 1);\n\ + else intactLines += range.to - range.from;\n\ + }\n\ + if (intactLines == to - from && from == display.showingFrom && to == display.showingTo)\n\ + return;\n\ + intact.sort(function(a, b) {return a.domStart - b.domStart;});\n\ +\n\ + display.lineDiv.style.display = \"none\";\n\ + patchDisplay(cm, from, to, intact, positionsChangedFrom);\n\ + display.lineDiv.style.display = \"\";\n\ +\n\ + var different = from != display.showingFrom || to != display.showingTo ||\n\ + display.lastSizeC != display.wrapper.clientHeight;\n\ + // This is just a bogus formula that detects when the editor is\n\ + // resized or the font size changes.\n\ + if (different) display.lastSizeC = display.wrapper.clientHeight;\n\ + display.showingFrom = from; display.showingTo = to;\n\ + display.viewOffset = heightAtLine(doc, from);\n\ + startWorker(cm, 100);\n\ +\n\ + // Since this is all rather error prone, it is honoured with the\n\ + // only assertion in the whole file.\n\ + if (display.lineDiv.childNodes.length != display.showingTo - display.showingFrom)\n\ + throw new Error(\"BAD PATCH! \" + JSON.stringify(intact) + \" size=\" + (display.showingTo - display.showingFrom) +\n\ + \" nodes=\" + display.lineDiv.childNodes.length);\n\ +\n\ + // Update line heights for visible lines based on actual DOM\n\ + // sizes\n\ + var curNode = display.lineDiv.firstChild, heightChanged = false;\n\ + var relativeTo = curNode.offsetTop;\n\ + doc.iter(display.showingFrom, display.showingTo, function(line) {\n\ + // Work around bizarro IE7 bug where, sometimes, our curNode\n\ + // is magically replaced with a new node in the DOM, leaving\n\ + // us with a reference to an orphan (nextSibling-less) node.\n\ + if (!curNode) return;\n\ + if (!line.hidden) {\n\ + var end = curNode.offsetHeight + curNode.offsetTop;\n\ + var height = end - relativeTo, diff = line.height - height;\n\ + if (height < 2) height = textHeight(display);\n\ + relativeTo = end;\n\ + if (diff > .001 || diff < -.001) {\n\ + updateLineHeight(line, height);\n\ + heightChanged = true;\n\ + }\n\ + }\n\ + curNode = curNode.nextSibling;\n\ + });\n\ +\n\ + // Position the mover div to align with the current virtual scroll position\n\ + display.mover.style.top = display.viewOffset + \"px\";\n\ + return true;\n\ + }\n\ +\n\ + function computeIntact(intact, changes) {\n\ + for (var i = 0, l = changes.length || 0; i < l; ++i) {\n\ + var change = changes[i], intact2 = [], diff = change.diff || 0;\n\ + for (var j = 0, l2 = intact.length; j < l2; ++j) {\n\ + var range = intact[j];\n\ + if (change.to <= range.from && change.diff)\n\ + intact2.push({from: range.from + diff, to: range.to + diff,\n\ + domStart: range.domStart});\n\ + else if (change.to <= range.from || change.from >= range.to)\n\ + intact2.push(range);\n\ + else {\n\ + if (change.from > range.from)\n\ + intact2.push({from: range.from, to: change.from, domStart: range.domStart});\n\ + if (change.to < range.to)\n\ + intact2.push({from: change.to + diff, to: range.to + diff,\n\ + domStart: range.domStart + (change.to - range.from)});\n\ + }\n\ + }\n\ + intact = intact2;\n\ + }\n\ + return intact;\n\ + }\n\ +\n\ + function patchDisplay(cm, from, to, intact, updateNumbersFrom) {\n\ + function killNode(node) {\n\ + var tmp = node.nextSibling;\n\ + node.parentNode.removeChild(node);\n\ + return tmp;\n\ + }\n\ + var display = cm.display, lineNumbers = cm.options.lineNumbers;\n\ + var lineNumberPos = lineNumbers && lineNumberLeftPos(display);\n\ + // The first pass removes the DOM nodes that aren't intact.\n\ + if (!intact.length) removeChildren(display.lineDiv);\n\ + else {\n\ + var domPos = 0, curNode = display.lineDiv.firstChild, n;\n\ + for (var i = 0; i < intact.length; ++i) {\n\ + var cur = intact[i];\n\ + while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;}\n\ + for (var j = cur.from, e = cur.to; j < e; ++j) {\n\ + if (lineNumbers && updateNumbersFrom <= j && curNode.firstChild)\n\ + setTextContent(curNode.firstChild, lineNumberFor(cm.options, j));\n\ + curNode = curNode.nextSibling; domPos++;\n\ + }\n\ + }\n\ + while (curNode) curNode = killNode(curNode);\n\ + }\n\ + // This pass fills in the lines that actually changed.\n\ + var nextIntact = intact.shift(), curNode = display.lineDiv.firstChild;\n\ + var j = from, gutterSpecs = cm.options.gutters;\n\ + cm.view.doc.iter(from, to, function(line) {\n\ + if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();\n\ + if (!nextIntact || nextIntact.from > j) {\n\ + if (line.hidden) var lineElement = elt(\"div\");\n\ + else {\n\ + var lineElement = lineContent(cm, line), markers = line.gutterMarkers;\n\ + if (line.className) lineElement.className = line.className;\n\ + // Lines with gutter elements or a background class need\n\ + // to be wrapped again, and have the extra elements added\n\ + // to the wrapper div\n\ + if (lineNumbers || markers || line.bgClassName || (line.widgets && line.widgets.length)) {\n\ + var inside = [];\n\ + if (lineNumbers)\n\ + inside.push(elt(\"div\", lineNumberFor(cm.options, j),\n\ + \"CodeMirror-linenumber CodeMirror-gutter-elt\",\n\ + \"left: \" + lineNumberPos + \"px; width: \"\n\ + + display.lineNumWidth + \"px\"));\n\ + if (markers)\n\ + for (var k = 0; k < gutterSpecs.length; ++k) {\n\ + var id = gutterSpecs[k], found = markers.hasOwnProperty(id) && markers[id];\n\ + if (found) {\n\ + var gutterElt = display.gutters.childNodes[k];\n\ + inside.push(elt(\"div\", [found], \"CodeMirror-gutter-elt\", \"left: \" +\n\ + (gutterElt.offsetLeft - display.gutters.offsetWidth) +\n\ + \"px; width: \" + gutterElt.clientWidth + \"px\"));\n\ + }\n\ + }\n\ + // Kludge to make sure the styled element lies behind the selection (by z-index)\n\ + if (line.bgClassName)\n\ + inside.push(elt(\"div\", \"\\u00a0\", line.bgClassName + \" CodeMirror-linebackground\"));\n\ + inside.push(lineElement);\n\ + if (line.widgets)\n\ + for (var i = 0, ws = line.widgets; i < ws.length; ++i) {\n\ + var widget = ws[i], node = elt(\"div\", [widget.node], \"CodeMirror-linewidget\");\n\ + node.widget = widget;\n\ + if (widget.noHScroll)\n\ + node.style.width = display.wrapper.clientWidth + \"px\";\n\ + if (widget.coverGutter) {\n\ + node.style.zIndex = 5;\n\ + node.style.position = \"relative\";\n\ + node.style.marginLeft =\n\ + (widget.noHScroll ? compensateForHScroll(display) : -display.gutters.offsetWidth) + \"px\";\n\ + }\n\ + inside.push(node);\n\ + }\n\ + lineElement = elt(\"div\", inside, null, \"position: relative\");\n\ + if (ie_lt8) lineElement.style.zIndex = 2;\n\ + }\n\ + }\n\ + display.lineDiv.insertBefore(lineElement, curNode);\n\ + } else {\n\ + curNode = curNode.nextSibling;\n\ + }\n\ + ++j;\n\ + });\n\ + }\n\ +\n\ + // SELECTION / CURSOR\n\ +\n\ + function selHead(view) {\n\ + return view.sel.inverted ? view.sel.from : view.sel.to;\n\ + }\n\ +\n\ + function updateSelection(cm) {\n\ + var headPos, display = cm.display, doc = cm.view.doc, sel = cm.view.sel;\n\ + if (posEq(sel.from, sel.to)) { // No selection, single cursor\n\ + var pos = headPos = cursorCoords(cm, sel.from, \"div\");\n\ + display.cursor.style.left = pos.left + \"px\";\n\ + display.cursor.style.top = pos.top + \"px\";\n\ + display.cursor.style.height = (pos.bottom - pos.top) * .85 + \"px\";\n\ + display.cursor.style.display = \"\";\n\ + display.selectionDiv.style.display = \"none\";\n\ +\n\ + if (pos.other) {\n\ + display.otherCursor.style.display = \"\";\n\ + display.otherCursor.style.left = pos.other.left + \"px\";\n\ + display.otherCursor.style.top = pos.other.top + \"px\";\n\ + display.otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + \"px\";\n\ + } else { display.otherCursor.style.display = \"none\"; }\n\ + } else {\n\ + headPos = cursorCoords(cm, selHead(cm.view), \"div\");\n\ + var fragment = document.createDocumentFragment();\n\ + var clientWidth = display.lineSpace.clientWidth;\n\ + var add = function(left, top, width, bottom) {\n\ + if (top < 0) top = 0;\n\ + fragment.appendChild(elt(\"div\", null, \"CodeMirror-selected\", \"position: absolute; left: \" + left +\n\ + \"px; top: \" + top + \"px; width: \" + (width == null ? clientWidth : width) +\n\ + \"px; height: \" + (bottom - top) + \"px\"));\n\ + };\n\ +\n\ + var middleFrom = sel.from.line + 1, middleTo = sel.to.line - 1, sameLine = sel.from.line == sel.to.line;\n\ + var drawForLine = function(line, from, toArg, retTop) {\n\ + var lineObj = getLine(doc, line), lineLen = lineObj.text.length;\n\ + var coords = function(ch) { return charCoords(cm, {line: line, ch: ch}, \"div\", lineObj); };\n\ + var rVal = retTop ? Infinity : -Infinity;\n\ + iterateBidiSections(getOrder(lineObj), from, toArg == null ? lineLen : toArg, function(from, to, dir) {\n\ + var leftPos = coords(dir == \"rtl\" ? to - 1 : from);\n\ + var rightPos = coords(dir == \"rtl\" ? from : to - 1);\n\ + var left = leftPos.left, right = rightPos.right;\n\ + if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part\n\ + add(left, leftPos.top, null, leftPos.bottom);\n\ + left = paddingLeft(display);\n\ + if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);\n\ + }\n\ + if (toArg == null && to == lineLen) right = clientWidth;\n\ + rVal = retTop ? Math.min(rightPos.top, rVal) : Math.max(rightPos.bottom, rVal);\n\ + add(left, rightPos.top, right - left, rightPos.bottom);\n\ + });\n\ + return rVal;\n\ + };\n\ +\n\ + var middleTop = Infinity, middleBot = -Infinity;\n\ + if (sel.from.ch || sameLine)\n\ + // Draw the first line of selection.\n\ + middleTop = drawForLine(sel.from.line, sel.from.ch, sameLine ? sel.to.ch : null);\n\ + else\n\ + // Simply include it in the middle block.\n\ + middleFrom = sel.from.line;\n\ +\n\ + if (!sameLine && sel.to.ch)\n\ + middleBot = drawForLine(sel.to.line, 0, sel.to.ch, true);\n\ +\n\ + if (middleFrom <= middleTo) {\n\ + // Draw the middle\n\ + var botLine = getLine(doc, middleTo),\n\ + bottom = charCoords(cm, {line: middleTo, ch: botLine.text.length}, \"div\", botLine);\n\ + // Kludge to try and prevent fetching coordinates twice if\n\ + // start end end are on same line.\n\ + var top = (middleFrom != middleTo || botLine.height > bottom.bottom - bottom.top) ?\n\ + charCoords(cm, {line: middleFrom, ch: 0}, \"div\") : bottom;\n\ + middleTop = Math.min(middleTop, top.top);\n\ + middleBot = Math.max(middleBot, bottom.bottom);\n\ + }\n\ + if (middleTop < middleBot) add(paddingLeft(display), middleTop, null, middleBot);\n\ +\n\ + removeChildrenAndAdd(display.selectionDiv, fragment);\n\ + display.cursor.style.display = display.otherCursor.style.display = \"none\";\n\ + display.selectionDiv.style.display = \"\";\n\ + }\n\ +\n\ + // Move the hidden textarea near the cursor to prevent scrolling artifacts\n\ + var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();\n\ + display.inputDiv.style.top = Math.max(0, Math.min(display.wrapper.clientHeight - 10,\n\ + headPos.top + lineOff.top - wrapOff.top)) + \"px\";\n\ + display.inputDiv.style.left = Math.max(0, Math.min(display.wrapper.clientWidth - 10,\n\ + headPos.left + lineOff.left - wrapOff.left)) + \"px\";\n\ + }\n\ +\n\ + // Cursor-blinking\n\ + function restartBlink(cm) {\n\ + var display = cm.display;\n\ + clearInterval(display.blinker);\n\ + var on = true;\n\ + display.cursor.style.visibility = display.otherCursor.style.visibility = \"\";\n\ + display.blinker = setInterval(function() {\n\ + display.cursor.style.visibility = display.otherCursor.style.visibility = (on = !on) ? \"\" : \"hidden\";\n\ + }, cm.options.cursorBlinkRate);\n\ + }\n\ +\n\ + // HIGHLIGHT WORKER\n\ +\n\ + function startWorker(cm, time) {\n\ + if (cm.view.doc.frontier < cm.display.showingTo)\n\ + cm.view.doc.highlight.set(time, bind(highlightWorker, cm));\n\ + }\n\ +\n\ + function highlightWorker(cm) {\n\ + var doc = cm.view.doc;\n\ + if (doc.frontier >= cm.display.showingTo) return;\n\ + var end = +new Date + cm.options.workTime;\n\ + var state = copyState(doc.mode, getStateBefore(doc, doc.frontier));\n\ + var startFrontier = doc.frontier;\n\ + doc.iter(doc.frontier, cm.display.showingTo, function(line) {\n\ + if (doc.frontier >= cm.display.showingFrom) { // Visible\n\ + line.highlight(doc.mode, state, cm.options.tabSize);\n\ + line.stateAfter = copyState(doc.mode, state);\n\ + } else {\n\ + line.process(doc.mode, state, cm.options.tabSize);\n\ + line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;\n\ + }\n\ + ++doc.frontier;\n\ + if (+new Date > end) {\n\ + startWorker(cm, cm.options.workDelay);\n\ + return true;\n\ + }\n\ + });\n\ + if (cm.display.showingTo > startFrontier && doc.frontier >= cm.display.showingFrom)\n\ + operation(cm, function() {regChange(this, startFrontier, doc.frontier);})();\n\ + }\n\ +\n\ + // Finds the line to start with when starting a parse. Tries to\n\ + // find a line with a stateAfter, so that it can start with a\n\ + // valid state. If that fails, it returns the line with the\n\ + // smallest indentation, which tends to need the least context to\n\ + // parse correctly.\n\ + function findStartLine(doc, n) {\n\ + var minindent, minline;\n\ + for (var search = n, lim = n - 100; search > lim; --search) {\n\ + if (search == 0) return 0;\n\ + var line = getLine(doc, search-1);\n\ + if (line.stateAfter) return search;\n\ + var indented = line.indentation(doc.tabSize);\n\ + if (minline == null || minindent > indented) {\n\ + minline = search - 1;\n\ + minindent = indented;\n\ + }\n\ + }\n\ + return minline;\n\ + }\n\ +\n\ + function getStateBefore(doc, n) {\n\ + var pos = findStartLine(doc, n), state = pos && getLine(doc, pos-1).stateAfter;\n\ + if (!state) state = startState(doc.mode);\n\ + else state = copyState(doc.mode, state);\n\ + doc.iter(pos, n, function(line) {\n\ + line.process(doc.mode, state, doc.tabSize);\n\ + line.stateAfter = (pos == n - 1 || pos % 5 == 0) ? copyState(doc.mode, state) : null;\n\ + });\n\ + return state;\n\ + }\n\ +\n\ + // POSITION MEASUREMENT\n\ + \n\ + function paddingTop(display) {return display.lineSpace.offsetTop;}\n\ + function paddingLeft(display) {\n\ + var e = removeChildrenAndAdd(display.measure, elt(\"pre\")).appendChild(elt(\"span\", \"x\"));\n\ + return e.offsetLeft;\n\ + }\n\ +\n\ + function measureLine(cm, line, ch) {\n\ + var wrapping = cm.options.lineWrapping, display = cm.display;\n\ + // First look in the cache\n\ + var cache = cm.display.measureLineCache;\n\ + for (var i = 0; i < cache.length; ++i) {\n\ + var memo = cache[i];\n\ + if (memo.ch == ch && memo.text == line.text &&\n\ + (!wrapping || display.scroller.clientWidth == memo.width))\n\ + return {top: memo.top, bottom: memo.bottom, left: memo.left, right: memo.right};\n\ + }\n\ +\n\ + var atEnd = ch && ch == line.text.length;\n\ + var pre = lineContent(cm, line, atEnd ? ch - 1 : ch);\n\ + removeChildrenAndAdd(display.measure, pre);\n\ + var anchor = pre.anchor, outer = display.lineDiv.getBoundingClientRect();\n\ + // We'll sample once at the top, once at the bottom of the line,\n\ + // to get the real line height (in case there tokens on the line\n\ + // with bigger fonts)\n\ + anchor.style.verticalAlign = \"top\";\n\ + var box1 = anchor.getBoundingClientRect(), left = box1.left - outer.left, right = box1.right - outer.left;\n\ + if (ie) {\n\ + var left1 = anchor.offsetLeft;\n\ + // In IE, verticalAlign does not influence offsetTop, unless\n\ + // the element is an inline-block. Unfortunately, inline\n\ + // blocks have different wrapping behaviour, so we have to do\n\ + // some icky thing with inserting \"Zero-Width No-Break Spaces\"\n\ + // to compensate for wrapping artifacts.\n\ + anchor.style.display = \"inline-block\";\n\ + if (wrapping && anchor.offsetLeft != left1) {\n\ + anchor.parentNode.insertBefore(document.createTextNode(\"\\ufeff\"), anchor);\n\ + if (anchor.offsetLeft != left1)\n\ + anchor.parentNode.insertBefore(document.createTextNode(\"\\ufeff\"), anchor.nextSibling);\n\ + if (anchor.offsetLeft != left1)\n\ + anchor.parentNode.removeChild(anchor.previousSibling);\n\ + }\n\ + }\n\ + var top = Math.max(0, box1.top - outer.top);\n\ + anchor.style.verticalAlign = \"bottom\";\n\ + var bottom = Math.min(anchor.getBoundingClientRect().bottom - outer.top, pre.offsetHeight);\n\ + if (atEnd) left = right;\n\ +\n\ + // Store result in the cache\n\ + var memo = {ch: ch, text: line.text, width: display.wrapper.clientWidth,\n\ + top: top, bottom: bottom, left: left, right: right};\n\ + if (cache.length == 8) cache[++cache.pos % 8] = memo;\n\ + else cache.push(memo);\n\ +\n\ + return {top: top, bottom: bottom, left: left, right: right};\n\ + }\n\ +\n\ + // Context is one of \"line\", \"div\" (display.lineDiv), \"local\"/null (editor), or \"page\"\n\ + function intoCoordSystem(cm, pos, rect, context) {\n\ + if (context == \"line\") return rect;\n\ + if (!context) context = \"local\";\n\ + var yOff = heightAtLine(cm.view.doc, pos.line);\n\ + if (context != \"local\") yOff -= cm.display.viewOffset;\n\ + if (context == \"page\") {\n\ + var lOff = cm.display.lineSpace.getBoundingClientRect();\n\ + yOff += lOff.top; rect.left += lOff.left; rect.right += lOff.right;\n\ + }\n\ + rect.top += yOff; rect.bottom += yOff;\n\ + return rect;\n\ + }\n\ +\n\ + function charCoords(cm, pos, context, lineObj) {\n\ + if (!lineObj) lineObj = getLine(cm.view.doc, pos.line);\n\ + return intoCoordSystem(cm, pos, measureLine(cm, lineObj, pos.ch), context);\n\ + }\n\ +\n\ + function cursorCoords(cm, pos, context, lineObj) {\n\ + lineObj = lineObj || getLine(cm.view.doc, pos.line);\n\ + function get(ch, right) {\n\ + var m = measureLine(cm, lineObj, ch);\n\ + if (right) m.left = m.right; else m.right = m.left;\n\ + return intoCoordSystem(cm, pos, m, context);\n\ + }\n\ + var order = getOrder(lineObj), ch = pos.ch;\n\ + if (!order) return get(ch);\n\ + var main, other, linedir = order[0].level;\n\ + for (var i = 0; i < order.length; ++i) {\n\ + var part = order[i], rtl = part.level % 2, nb, here;\n\ + if (part.from < ch && part.to > ch) return get(ch, rtl);\n\ + var left = rtl ? part.to : part.from, right = rtl ? part.from : part.to;\n\ + if (left == ch) {\n\ + // Opera and IE return bogus offsets and widths for edges\n\ + // where the direction flips, but only for the side with the\n\ + // lower level. So we try to use the side with the higher\n\ + // level.\n\ + if (i && part.level < (nb = order[i-1]).level) here = get(nb.level % 2 ? nb.from : nb.to - 1, true);\n\ + else here = get(rtl && part.from != part.to ? ch - 1 : ch);\n\ + if (rtl == linedir) main = here; else other = here;\n\ + } else if (right == ch) {\n\ + var nb = i < order.length - 1 && order[i+1];\n\ + if (!rtl && nb && nb.from == nb.to) continue;\n\ + if (nb && part.level < nb.level) here = get(nb.level % 2 ? nb.to - 1 : nb.from);\n\ + else here = get(rtl ? ch : ch - 1, true);\n\ + if (rtl == linedir) main = here; else other = here;\n\ + }\n\ + }\n\ + if (linedir && !ch) other = get(order[0].to - 1);\n\ + if (!main) return other;\n\ + if (other) main.other = other;\n\ + return main;\n\ + }\n\ +\n\ + // Coords must be lineSpace-local\n\ + function coordsChar(cm, x, y) {\n\ + var display = cm.display, doc = cm.view.doc;\n\ + var cw = charWidth(display), heightPos = display.viewOffset + y;\n\ + if (heightPos < 0) return {line: 0, ch: 0};\n\ + var lineNo = lineAtHeight(doc, heightPos);\n\ + if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc, doc.size - 1).text.length};\n\ + var lineObj = getLine(doc, lineNo);\n\ + if (!lineObj.text.length) return {line: lineNo, ch: 0};\n\ + var tw = cm.options.lineWrapping, innerOff = tw ? heightPos - heightAtLine(doc, lineNo) : 0;\n\ + if (x < 0) x = 0;\n\ + var wrongLine = false;\n\ + function getX(ch) {\n\ + var sp = cursorCoords(cm, {line: lineNo, ch: ch}, \"line\", lineObj);\n\ + if (tw) {\n\ + wrongLine = true;\n\ + if (innerOff > sp.bottom) return Math.max(0, sp.left - display.wrapper.clientWidth);\n\ + else if (innerOff < sp.top) return sp.left + display.wrapper.clientWidth;\n\ + else wrongLine = false;\n\ + }\n\ + return sp.left;\n\ + }\n\ + var bidi = getOrder(lineObj), dist = lineObj.text.length;\n\ + var from = lineLeft(lineObj), fromX = 0, to = lineRight(lineObj), toX;\n\ + if (!bidi) {\n\ + // Guess a suitable upper bound for our search.\n\ + var estimated = Math.min(to, Math.ceil((x + Math.floor(innerOff / textHeight(display)) *\n\ + display.wrapper.clientWidth * .9) / cw));\n\ + for (;;) {\n\ + var estX = getX(estimated);\n\ + if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));\n\ + else {toX = estX; to = estimated; break;}\n\ + }\n\ + // Try to guess a suitable lower bound as well.\n\ + estimated = Math.floor(to * 0.8); estX = getX(estimated);\n\ + if (estX < x) {from = estimated; fromX = estX;}\n\ + dist = to - from;\n\ + } else toX = getX(to);\n\ + if (x > toX) return {line: lineNo, ch: to};\n\ + // Do a binary search between these bounds.\n\ + for (;;) {\n\ + if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {\n\ + var after = x - fromX < toX - x, ch = after ? from : to;\n\ + while (isExtendingChar.test(lineObj.text.charAt(ch))) ++ch;\n\ + return {line: lineNo, ch: ch, after: after};\n\ + }\n\ + var step = Math.ceil(dist / 2), middle = from + step;\n\ + if (bidi) {\n\ + middle = from;\n\ + for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);\n\ + }\n\ + var middleX = getX(middle);\n\ + if (middleX > x) {to = middle; toX = middleX; if (wrongLine) toX += 1000; dist -= step;}\n\ + else {from = middle; fromX = middleX; dist = step;}\n\ + }\n\ + }\n\ +\n\ + var measureText;\n\ + function textHeight(display) {\n\ + if (display.cachedTextHeight != null) return display.cachedTextHeight;\n\ + if (measureText == null) {\n\ + measureText = elt(\"pre\");\n\ + // Measure a bunch of lines, for browsers that compute\n\ + // fractional heights.\n\ + for (var i = 0; i < 49; ++i) {\n\ + measureText.appendChild(document.createTextNode(\"x\"));\n\ + measureText.appendChild(elt(\"br\"));\n\ + }\n\ + measureText.appendChild(document.createTextNode(\"x\"));\n\ + }\n\ + removeChildrenAndAdd(display.measure, measureText);\n\ + var height = measureText.offsetHeight / 50;\n\ + if (height > 3) display.cachedTextHeight = height;\n\ + removeChildren(display.measure);\n\ + return height || 1;\n\ + }\n\ +\n\ + function charWidth(display) {\n\ + if (display.cachedCharWidth != null) return display.cachedCharWidth;\n\ + var anchor = elt(\"span\", \"x\");\n\ + var pre = elt(\"pre\", [anchor]);\n\ + removeChildrenAndAdd(display.measure, pre);\n\ + var width = anchor.offsetWidth;\n\ + if (width > 2) display.cachedCharWidth = width;\n\ + return width || 10;\n\ + }\n\ +\n\ + // OPERATIONS\n\ +\n\ + // Operations are used to wrap changes in such a way that each\n\ + // change won't have to update the cursor and display (which would\n\ + // be awkward, slow, and error-prone), but instead updates are\n\ + // batched and then all combined and executed at once.\n\ +\n\ + function startOperation(cm) {\n\ + if (cm.curOp) ++cm.curOp.depth;\n\ + else cm.curOp = {\n\ + // Nested operations delay update until the outermost one\n\ + // finishes.\n\ + depth: 1,\n\ + // An array of ranges of lines that have to be updated. See\n\ + // updateDisplay.\n\ + changes: [],\n\ + delayedCallbacks: [],\n\ + updateInput: null,\n\ + userSelChange: null,\n\ + textChanged: null,\n\ + selectionChanged: false,\n\ + updateMaxLine: false\n\ + };\n\ + }\n\ +\n\ + function endOperation(cm) {\n\ + var op = cm.curOp;\n\ + if (--op.depth) return;\n\ + cm.curOp = null;\n\ + var view = cm.view, display = cm.display;\n\ + if (op.updateMaxLine) computeMaxLength(view);\n\ + if (view.maxLineChanged && !cm.options.lineWrapping) {\n\ + var width = measureLine(cm, view.maxLine, view.maxLine.text.length).left;\n\ + display.sizer.style.minWidth = (width + 3 + scrollerCutOff) + \"px\";\n\ + view.maxLineChanged = false;\n\ + }\n\ + var newScrollPos, updated;\n\ + if (op.selectionChanged) {\n\ + var coords = cursorCoords(cm, selHead(view));\n\ + newScrollPos = calculateScrollPos(display, coords.left, coords.top, coords.left, coords.bottom);\n\ + }\n\ + if (op.changes.length || newScrollPos && newScrollPos.scrollTop != null)\n\ + updated = updateDisplay(cm, op.changes, newScrollPos && newScrollPos.scrollTop);\n\ + if (!updated && op.selectionChanged) updateSelection(cm);\n\ + if (newScrollPos) scrollCursorIntoView(cm);\n\ + if (op.selectionChanged) restartBlink(cm);\n\ +\n\ + if (view.focused && op.updateInput)\n\ + resetInput(cm, op.userSelChange);\n\ +\n\ + if (op.textChanged)\n\ + signal(cm, \"change\", cm, op.textChanged);\n\ + if (op.selectionChanged) signal(cm, \"cursorActivity\", cm);\n\ + for (var i = 0; i < op.delayedCallbacks.length; ++i) op.delayedCallbacks[i](cm);\n\ + }\n\ +\n\ + // Wraps a function in an operation. Returns the wrapped function.\n\ + function operation(cm1, f) {\n\ + return function() {\n\ + var cm = cm1 || this;\n\ + startOperation(cm);\n\ + try {var result = f.apply(cm, arguments);}\n\ + finally {endOperation(cm);}\n\ + return result;\n\ + };\n\ + }\n\ +\n\ + function regChange(cm, from, to, lendiff) {\n\ + cm.curOp.changes.push({from: from, to: to, diff: lendiff});\n\ + }\n\ +\n\ + function compoundChange(cm, f) {\n\ + var hist = cm.view.doc.history;\n\ + hist.startCompound();\n\ + try { return f(); } finally { hist.endCompound(); }\n\ + }\n\ +\n\ + // INPUT HANDLING\n\ +\n\ + function slowPoll(cm) {\n\ + if (cm.view.pollingFast) return;\n\ + cm.display.poll.set(cm.options.pollInterval, function() {\n\ + readInput(cm);\n\ + if (cm.view.focused) slowPoll(cm);\n\ + });\n\ + }\n\ +\n\ + function fastPoll(cm) {\n\ + var missed = false;\n\ + cm.display.pollingFast = true;\n\ + function p() {\n\ + var changed = readInput(cm);\n\ + if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);}\n\ + else {cm.display.pollingFast = false; slowPoll(cm);}\n\ + }\n\ + cm.display.poll.set(20, p);\n\ + }\n\ +\n\ + // prevInput is a hack to work with IME. If we reset the textarea\n\ + // on every change, that breaks IME. So we look for changes\n\ + // compared to the previous content instead. (Modern browsers have\n\ + // events that indicate IME taking place, but these are not widely\n\ + // supported or compatible enough yet to rely on.)\n\ + function readInput(cm) {\n\ + var input = cm.display.input, prevInput = cm.display.prevInput, view = cm.view, sel = view.sel;\n\ + if (!view.focused || hasSelection(input) || cm.options.readOnly) return false;\n\ + var text = input.value;\n\ + if (text == prevInput && posEq(sel.from, sel.to)) return false;\n\ + startOperation(cm);\n\ + view.sel.shift = null;\n\ + var same = 0, l = Math.min(prevInput.length, text.length);\n\ + while (same < l && prevInput[same] == text[same]) ++same;\n\ + if (same < prevInput.length)\n\ + sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)};\n\ + else if (view.overwrite && posEq(sel.from, sel.to))\n\ + sel.to = {line: sel.to.line, ch: Math.min(getLine(cm.view.doc, sel.to.line).text.length, sel.to.ch + (text.length - same))};\n\ + var updateInput = cm.curOp.updateInput;\n\ + cm.replaceSelection(text.slice(same), \"end\");\n\ + cm.curOp.updateInput = updateInput;\n\ + if (text.length > 1000) { input.value = cm.display.prevInput = \"\"; }\n\ + else cm.display.prevInput = text;\n\ + endOperation(cm);\n\ + return true;\n\ + }\n\ +\n\ + function resetInput(cm, user) {\n\ + var view = cm.view, minimal, selected;\n\ + if (!posEq(view.sel.from, view.sel.to)) {\n\ + cm.display.prevInput = \"\";\n\ + minimal = hasCopyEvent &&\n\ + (view.sel.to.line - view.sel.from.line > 100 || (selected = cm.getSelection()).length > 1000);\n\ + if (minimal) cm.display.input.value = \"-\";\n\ + else cm.display.input.value = selected || cm.getSelection();\n\ + if (view.focused) selectInput(cm.display.input);\n\ + } else if (user) cm.display.prevInput = cm.display.input.value = \"\";\n\ + cm.display.inaccurateSelection = minimal;\n\ + }\n\ +\n\ + function focusInput(cm) {\n\ + if (cm.options.readOnly != \"nocursor\") cm.display.input.focus();\n\ + }\n\ +\n\ + // EVENT HANDLERS\n\ +\n\ + function registerEventHandlers(cm) {\n\ + var d = cm.display;\n\ + on(d.scroller, \"mousedown\", operation(cm, onMouseDown));\n\ + on(d.gutters, \"mousedown\", operation(cm, clickInGutter));\n\ + on(d.scroller, \"dblclick\", operation(cm, e_preventDefault));\n\ + on(d.lineSpace, \"selectstart\", function(e) {\n\ + if (!mouseEventInWidget(d, e)) e_preventDefault(e);\n\ + });\n\ + // Gecko browsers fire contextmenu *after* opening the menu, at\n\ + // which point we can't mess with it anymore. Context menu is\n\ + // handled in onMouseDown for Gecko.\n\ + if (!gecko) on(d.scroller, \"contextmenu\", function(e) {onContextMenu(cm, e);});\n\ +\n\ + on(d.scroller, \"scroll\", function() {\n\ + if (d.scroller.scrollTop != cm.view.scrollTop) {\n\ + d.scrollbarV.scrollTop = cm.view.scrollTop = d.scroller.scrollTop;\n\ + updateDisplay(cm, []);\n\ + }\n\ + if (d.scroller.scrollLeft != cm.view.scrollLeft) {\n\ + d.scrollbarH.scrollLeft = cm.view.scrollLeft = d.scroller.scrollLeft;\n\ + alignLineNumbers(cm.display);\n\ + }\n\ + signal(cm, \"scroll\", cm);\n\ + });\n\ + on(d.scrollbarV, \"scroll\", function() {\n\ + if (d.scrollbarV.scrollTop != cm.view.scrollTop) {\n\ + d.scroller.scrollTop = cm.view.scrollTop = d.scrollbarV.scrollTop;\n\ + updateDisplay(cm, []);\n\ + }\n\ + });\n\ + on(d.scrollbarH, \"scroll\", function() {\n\ + if (d.scrollbarH.scrollLeft != cm.view.scrollLeft) {\n\ + d.scroller.scrollLeft = cm.view.scrollLeft = d.scrollbarH.scrollLeft;\n\ + alignLineNumbers(cm.display);\n\ + }\n\ + });\n\ +\n\ + function reFocus() { if (cm.view.focused) setTimeout(bind(focusInput, cm), 0); }\n\ + on(d.scrollbarH, \"mousedown\", reFocus);\n\ + on(d.scrollbarV, \"mousedown\", reFocus);\n\ + // Prevent wrapper from ever scrolling\n\ + on(d.wrapper, \"scroll\", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });\n\ + on(window, \"resize\", function resizeHandler() {\n\ + // Might be a text scaling operation, clear size caches.\n\ + d.cachedCharWidth = d.cachedTextHeight = null;\n\ + d.measureLineCache.length = d.measureLineCache.pos = 0;\n\ + if (d.wrapper.parentNode) updateDisplay(cm, true);\n\ + else off(window, \"resize\", resizeHandler);\n\ + });\n\ +\n\ + on(d.input, \"keyup\", operation(cm, function(e) {\n\ + if (cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;\n\ + if (e_prop(e, \"keyCode\") == 16) cm.view.sel.shift = null;\n\ + }));\n\ + on(d.input, \"input\", bind(fastPoll, cm));\n\ + on(d.input, \"keydown\", operation(cm, onKeyDown));\n\ + on(d.input, \"keypress\", operation(cm, onKeyPress));\n\ + on(d.input, \"focus\", bind(onFocus, cm));\n\ + on(d.input, \"blur\", bind(onBlur, cm));\n\ +\n\ + function drag_(e) {\n\ + if (cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))) return;\n\ + e_stop(e);\n\ + }\n\ + if (cm.options.dragDrop) {\n\ + on(d.scroller, \"dragstart\", function(e){onDragStart(cm, e);});\n\ + on(d.scroller, \"dragenter\", drag_);\n\ + on(d.scroller, \"dragover\", drag_);\n\ + on(d.scroller, \"drop\", operation(cm, onDrop));\n\ + }\n\ + on(d.scroller, \"paste\", function(){focusInput(cm); fastPoll(cm);});\n\ + on(d.input, \"paste\", bind(fastPoll, cm));\n\ + function prepareCopy() {\n\ + if (d.inaccurateSelection) {\n\ + d.prevInput = \"\";\n\ + d.inaccurateSelection = false;\n\ + d.input.value = cm.getSelection();\n\ + selectInput(d.input);\n\ + }\n\ + }\n\ + on(d.input, \"cut\", prepareCopy);\n\ + on(d.input, \"copy\", prepareCopy);\n\ +\n\ + // Needed to handle Tab key in KHTML\n\ + if (khtml) on(d.sizer, \"mouseup\", function() {\n\ + if (document.activeElement == d.input) d.input.blur();\n\ + focusInput(cm);\n\ + });\n\ + }\n\ +\n\ + function mouseEventInWidget(display, e) {\n\ + for (var n = e_target(e); n != display.wrapper; n = n.parentNode)\n\ + if (/\\bCodeMirror-linewidget\\b/.test(n.className) ||\n\ + n.parentNode == display.sizer && n != display.mover) return true;\n\ + }\n\ +\n\ + function posFromMouse(cm, e, liberal) {\n\ + var display = cm.display;\n\ + if (!liberal) {\n\ + var target = e_target(e);\n\ + if (target == display.scrollbarH || target == display.scrollbarH.firstChild ||\n\ + target == display.scrollbarV || target == display.scrollbarV.firstChild ||\n\ + target == display.scrollbarFiller) return null;\n\ + }\n\ + var x, y, space = display.lineSpace.getBoundingClientRect();\n\ + // Fails unpredictably on IE[67] when mouse is dragged around quickly.\n\ + try { x = e.clientX; y = e.clientY; } catch (e) { return null; }\n\ + return coordsChar(cm, x - space.left, y - space.top);\n\ + }\n\ +\n\ + var lastClick, lastDoubleClick;\n\ + function onMouseDown(e) {\n\ + var cm = this, display = cm.display, view = cm.view, sel = view.sel, doc = view.doc;\n\ + setShift(cm.view, e_prop(e, \"shiftKey\"));\n\ +\n\ + if (mouseEventInWidget(display, e)) {\n\ + if (!webkit) {\n\ + display.scroller.draggable = false;\n\ + setTimeout(function(){display.scroller.draggable = true;}, 100);\n\ + }\n\ + return;\n\ + }\n\ + if (clickInGutter.call(cm, e)) return;\n\ + var start = posFromMouse(cm, e);\n\ +\n\ + switch (e_button(e)) {\n\ + case 3:\n\ + if (gecko) onContextMenu.call(cm, cm, e);\n\ + return;\n\ + case 2:\n\ + if (start) setSelectionUser(cm, start, start);\n\ + setTimeout(bind(focusInput, cm), 20);\n\ + e_preventDefault(e);\n\ + return;\n\ + }\n\ + // For button 1, if it was clicked inside the editor\n\ + // (posFromMouse returning non-null), we have to adjust the\n\ + // selection.\n\ + if (!start) {if (e_target(e) == display.scroller) e_preventDefault(e); return;}\n\ +\n\ + if (!view.focused) onFocus(cm);\n\ +\n\ + var now = +new Date, type = \"single\";\n\ + if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {\n\ + type = \"triple\";\n\ + e_preventDefault(e);\n\ + setTimeout(bind(focusInput, cm), 20);\n\ + selectLine(cm, start.line);\n\ + } else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {\n\ + type = \"double\";\n\ + lastDoubleClick = {time: now, pos: start};\n\ + e_preventDefault(e);\n\ + var word = findWordAt(getLine(doc, start.line).text, start);\n\ + setSelectionUser(cm, word.from, word.to);\n\ + } else { lastClick = {time: now, pos: start}; }\n\ +\n\ + var last = start;\n\ + if (cm.options.dragDrop && dragAndDrop && !cm.options.readOnly && !posEq(sel.from, sel.to) &&\n\ + !posLess(start, sel.from) && !posLess(sel.to, start) && type == \"single\") {\n\ + var dragEnd = operation(cm, function(e2) {\n\ + if (webkit) display.scroller.draggable = false;\n\ + view.draggingText = false;\n\ + off(document, \"mouseup\", dragEnd);\n\ + off(display.scroller, \"drop\", dragEnd);\n\ + if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {\n\ + e_preventDefault(e2);\n\ + setSelectionUser(cm, start, start);\n\ + focusInput(cm);\n\ + }\n\ + });\n\ + // Let the drag handler handle this.\n\ + if (webkit) display.scroller.draggable = true;\n\ + view.draggingText = true;\n\ + // IE's approach to draggable\n\ + if (display.scroller.dragDrop) display.scroller.dragDrop();\n\ + on(document, \"mouseup\", dragEnd);\n\ + on(display.scroller, \"drop\", dragEnd);\n\ + return;\n\ + }\n\ + e_preventDefault(e);\n\ + if (type == \"single\") setSelectionUser(cm, start, start);\n\ +\n\ + var startstart = sel.from, startend = sel.to;\n\ +\n\ + function doSelect(cur) {\n\ + if (type == \"single\") {\n\ + setSelectionUser(cm, start, cur);\n\ + } else if (type == \"double\") {\n\ + var word = findWordAt(getLine(doc, cur.line).text, cur);\n\ + if (posLess(cur, startstart)) setSelectionUser(cm, word.from, startend);\n\ + else setSelectionUser(cm, startstart, word.to);\n\ + } else if (type == \"triple\") {\n\ + if (posLess(cur, startstart)) setSelectionUser(cm, startend, clipPos(doc, {line: cur.line, ch: 0}));\n\ + else setSelectionUser(cm, startstart, clipPos(doc, {line: cur.line + 1, ch: 0}));\n\ + }\n\ + }\n\ +\n\ + var editorSize = display.wrapper.getBoundingClientRect();\n\ + // Used to ensure timeout re-tries don't fire when another extend\n\ + // happened in the meantime (clearTimeout isn't reliable -- at\n\ + // least on Chrome, the timeouts still happen even when cleared,\n\ + // if the clear happens after their scheduled firing time).\n\ + var counter = 0;\n\ +\n\ + function extend(e) {\n\ + var curCount = ++counter;\n\ + var cur = posFromMouse(cm, e, true);\n\ + if (!cur) return;\n\ + if (!posEq(cur, last)) {\n\ + if (!view.focused) onFocus(cm);\n\ + last = cur;\n\ + doSelect(cur);\n\ + var visible = visibleLines(display, doc);\n\ + if (cur.line >= visible.to || cur.line < visible.from)\n\ + setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);\n\ + } else {\n\ + var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;\n\ + if (outside) setTimeout(operation(cm, function() {\n\ + if (counter != curCount) return;\n\ + display.scroller.scrollTop += outside;\n\ + extend(e);\n\ + }), 50);\n\ + }\n\ + }\n\ +\n\ + function done(e) {\n\ + counter = Infinity;\n\ + var cur = posFromMouse(cm, e);\n\ + if (cur) doSelect(cur);\n\ + e_preventDefault(e);\n\ + focusInput(cm);\n\ + off(document, \"mousemove\", move);\n\ + off(document, \"mouseup\", up);\n\ + }\n\ +\n\ + var move = operation(cm, function(e) {\n\ + e_preventDefault(e);\n\ + if (!ie && !e_button(e)) done(e);\n\ + else extend(e);\n\ + });\n\ + var up = operation(cm, done);\n\ + on(document, \"mousemove\", move);\n\ + on(document, \"mouseup\", up);\n\ + }\n\ +\n\ + function onDrop(e) {\n\ + var cm = this;\n\ + if (cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))) return;\n\ + e_preventDefault(e);\n\ + var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;\n\ + if (!pos || cm.options.readOnly) return;\n\ + if (files && files.length && window.FileReader && window.File) {\n\ + var n = files.length, text = Array(n), read = 0;\n\ + var loadFile = function(file, i) {\n\ + var reader = new FileReader;\n\ + reader.onload = function() {\n\ + text[i] = reader.result;\n\ + if (++read == n) {\n\ + pos = clipPos(cm.view.doc, pos);\n\ + operation(cm, function() {\n\ + var end = replaceRange(cm, text.join(\"\"), pos, pos);\n\ + setSelectionUser(cm, pos, end);\n\ + })();\n\ + }\n\ + };\n\ + reader.readAsText(file);\n\ + };\n\ + for (var i = 0; i < n; ++i) loadFile(files[i], i);\n\ + } else {\n\ + // Don't do a replace if the drop happened inside of the selected text.\n\ + if (cm.view.draggingText && !(posLess(pos, cm.view.sel.from) || posLess(cm.view.sel.to, pos))) return;\n\ + try {\n\ + var text = e.dataTransfer.getData(\"Text\");\n\ + if (text) {\n\ + compoundChange(cm, function() {\n\ + var curFrom = cm.view.sel.from, curTo = cm.view.sel.to;\n\ + setSelectionUser(cm, pos, pos);\n\ + if (cm.view.draggingText) replaceRange(cm, \"\", curFrom, curTo);\n\ + cm.replaceSelection(text);\n\ + focusInput(cm);\n\ + });\n\ + }\n\ + }\n\ + catch(e){}\n\ + }\n\ + }\n\ +\n\ + function clickInGutter(e) {\n\ + var cm = this, display = cm.display;\n\ + try { var mX = e.clientX, mY = e.clientY; }\n\ + catch(e) { return false; }\n\ + \n\ + if (mX >= Math.floor(display.gutters.getBoundingClientRect().right)) return false;\n\ + e_preventDefault(e);\n\ + if (!hasHandler(cm, \"gutterClick\")) return true;\n\ +\n\ + var lineBox = display.lineDiv.getBoundingClientRect();\n\ + if (mY > lineBox.bottom) return true;\n\ + mY -= lineBox.top - display.viewOffset;\n\ +\n\ + for (var i = 0; i < cm.options.gutters.length; ++i) {\n\ + var g = display.gutters.childNodes[i];\n\ + if (g && g.getBoundingClientRect().right >= mX) {\n\ + var line = lineAtHeight(cm.view.doc, mY);\n\ + var gutter = cm.options.gutters[i];\n\ + signalLater(cm, cm, \"gutterClick\", cm, line, gutter, e);\n\ + break;\n\ + }\n\ + }\n\ + return true;\n\ + }\n\ +\n\ + function onDragStart(cm, e) {\n\ + var txt = cm.getSelection();\n\ + e.dataTransfer.setData(\"Text\", txt);\n\ +\n\ + // Use dummy image instead of default browsers image.\n\ + if (e.dataTransfer.setDragImage)\n\ + e.dataTransfer.setDragImage(elt('img'), 0, 0);\n\ + }\n\ +\n\ + function doHandleBinding(cm, bound, dropShift) {\n\ + if (typeof bound == \"string\") {\n\ + bound = commands[bound];\n\ + if (!bound) return false;\n\ + }\n\ + var view = cm.view, prevShift = view.sel.shift;\n\ + try {\n\ + if (cm.options.readOnly) view.suppressEdits = true;\n\ + if (dropShift) view.sel.shift = null;\n\ + bound(cm);\n\ + } catch(e) {\n\ + if (e != Pass) throw e;\n\ + return false;\n\ + } finally {\n\ + view.sel.shift = prevShift;\n\ + view.suppressEdits = false;\n\ + }\n\ + return true;\n\ + }\n\ +\n\ + var maybeTransition;\n\ + function handleKeyBinding(cm, e) {\n\ + // Handle auto keymap transitions\n\ + var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto;\n\ + clearTimeout(maybeTransition);\n\ + if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {\n\ + if (getKeyMap(cm.options.keyMap) == startMap)\n\ + cm.options.keyMap = (next.call ? next.call(null, cm) : next);\n\ + }, 50);\n\ +\n\ + var name = keyNames[e_prop(e, \"keyCode\")], handled = false;\n\ + var flipCtrlCmd = opera && mac;\n\ + if (name == null || e.altGraphKey) return false;\n\ + if (e_prop(e, \"altKey\")) name = \"Alt-\" + name;\n\ + if (e_prop(e, flipCtrlCmd ? \"metaKey\" : \"ctrlKey\")) name = \"Ctrl-\" + name;\n\ + if (e_prop(e, flipCtrlCmd ? \"ctrlKey\" : \"metaKey\")) name = \"Cmd-\" + name;\n\ +\n\ + var stopped = false;\n\ + function stop() { stopped = true; }\n\ +\n\ + if (e_prop(e, \"shiftKey\")) {\n\ + handled = lookupKey(\"Shift-\" + name, cm.options.extraKeys, cm.options.keyMap,\n\ + function(b) {return doHandleBinding(cm, b, true);}, stop)\n\ + || lookupKey(name, cm.options.extraKeys, cm.options.keyMap, function(b) {\n\ + if (typeof b == \"string\" && /^go[A-Z]/.test(b)) return doHandleBinding(cm, b);\n\ + }, stop);\n\ + } else {\n\ + handled = lookupKey(name, cm.options.extraKeys, cm.options.keyMap,\n\ + function(b) { return doHandleBinding(cm, b); }, stop);\n\ + }\n\ + if (stopped) handled = false;\n\ + if (handled) {\n\ + e_preventDefault(e);\n\ + restartBlink(cm);\n\ + if (ie) { e.oldKeyCode = e.keyCode; e.keyCode = 0; }\n\ + }\n\ + return handled;\n\ + }\n\ +\n\ + function handleCharBinding(cm, e, ch) {\n\ + var handled = lookupKey(\"'\" + ch + \"'\", cm.options.extraKeys, cm.options.keyMap,\n\ + function(b) { return doHandleBinding(cm, b, true); });\n\ + if (handled) {\n\ + e_preventDefault(e);\n\ + restartBlink(cm);\n\ + }\n\ + return handled;\n\ + }\n\ +\n\ + var lastStoppedKey = null;\n\ + function onKeyDown(e) {\n\ + var cm = this;\n\ + if (!cm.view.focused) onFocus(cm);\n\ + if (ie && e.keyCode == 27) { e.returnValue = false; }\n\ + if (cm.display.pollingFast) { if (readInput(cm)) cm.display.pollingFast = false; }\n\ + if (cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;\n\ + var code = e_prop(e, \"keyCode\");\n\ + // IE does strange things with escape.\n\ + setShift(cm.view, code == 16 || e_prop(e, \"shiftKey\"));\n\ + // First give onKeyEvent option a chance to handle this.\n\ + var handled = handleKeyBinding(cm, e);\n\ + if (opera) {\n\ + lastStoppedKey = handled ? code : null;\n\ + // Opera has no cut event... we try to at least catch the key combo\n\ + if (!handled && code == 88 && e_prop(e, mac ? \"metaKey\" : \"ctrlKey\"))\n\ + cm.replaceSelection(\"\");\n\ + }\n\ + }\n\ +\n\ + function onKeyPress(e) {\n\ + var cm = this;\n\ + if (cm.display.pollingFast) readInput(cm);\n\ + if (cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;\n\ + var keyCode = e_prop(e, \"keyCode\"), charCode = e_prop(e, \"charCode\");\n\ + if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}\n\ + if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return;\n\ + var ch = String.fromCharCode(charCode == null ? keyCode : charCode);\n\ + if (this.options.electricChars && this.view.doc.mode.electricChars &&\n\ + this.options.smartIndent && !this.options.readOnly &&\n\ + this.view.doc.mode.electricChars.indexOf(ch) > -1)\n\ + setTimeout(operation(cm, function() {indentLine(cm, cm.view.sel.to.line, \"smart\");}), 75);\n\ + if (handleCharBinding(cm, e, ch)) return;\n\ + fastPoll(cm);\n\ + }\n\ +\n\ + function onFocus(cm) {\n\ + if (cm.options.readOnly == \"nocursor\") return;\n\ + if (!cm.view.focused) {\n\ + signal(cm, \"focus\", cm);\n\ + cm.view.focused = true;\n\ + if (cm.display.scroller.className.search(/\\bCodeMirror-focused\\b/) == -1)\n\ + cm.display.scroller.className += \" CodeMirror-focused\";\n\ + }\n\ + slowPoll(cm);\n\ + restartBlink(cm);\n\ + }\n\ + function onBlur(cm) {\n\ + if (cm.view.focused) {\n\ + signal(cm, \"blur\", cm);\n\ + cm.view.focused = false;\n\ + cm.display.scroller.className = cm.display.scroller.className.replace(\" CodeMirror-focused\", \"\");\n\ + }\n\ + clearInterval(cm.display.blinker);\n\ + setTimeout(function() {if (!cm.view.focused) cm.view.sel.shift = null;}, 150);\n\ + }\n\ +\n\ + var detectingSelectAll;\n\ + function onContextMenu(cm, e) {\n\ + var display = cm.display, sel = cm.view.sel;\n\ + var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;\n\ + if (!pos || opera) return; // Opera is difficult.\n\ + if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))\n\ + operation(cm, setSelection)(cm, pos, pos);\n\ +\n\ + var oldCSS = display.input.style.cssText;\n\ + display.inputDiv.style.position = \"absolute\";\n\ + display.input.style.cssText = \"position: fixed; width: 30px; height: 30px; top: \" + (e.clientY - 5) +\n\ + \"px; left: \" + (e.clientX - 5) + \"px; z-index: 1000; background: white; outline: none;\" +\n\ + \"border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);\";\n\ + focusInput(cm);\n\ + resetInput(cm, true);\n\ + // Adds \"Select all\" to context menu in FF\n\ + if (posEq(sel.from, sel.to)) display.input.value = display.prevInput = \" \";\n\ +\n\ + function rehide() {\n\ + display.inputDiv.style.position = \"relative\";\n\ + display.input.style.cssText = oldCSS;\n\ + if (ie_lt9) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos;\n\ + slowPoll(cm);\n\ +\n\ + // Try to detect the user choosing select-all \n\ + if (display.input.selectionStart != null) {\n\ + clearTimeout(detectingSelectAll);\n\ + var extval = display.input.value = \" \" + (posEq(sel.from, sel.to) ? \"\" : display.input.value), i = 0;\n\ + display.prevInput = \" \";\n\ + display.input.selectionStart = 1; display.input.selectionEnd = extval.length;\n\ + detectingSelectAll = setTimeout(function poll(){\n\ + if (display.prevInput == \" \" && display.input.selectionStart == 0)\n\ + operation(cm, commands.selectAll)(cm);\n\ + else if (i++ < 10) detectingSelectAll = setTimeout(poll, 500);\n\ + else resetInput(cm);\n\ + }, 200);\n\ + }\n\ + }\n\ +\n\ + if (gecko) {\n\ + e_stop(e);\n\ + on(window, \"mouseup\", function mouseup() {\n\ + off(window, \"mouseup\", mouseup);\n\ + setTimeout(rehide, 20);\n\ + });\n\ + } else {\n\ + setTimeout(rehide, 50);\n\ + }\n\ + }\n\ +\n\ + // UPDATING\n\ +\n\ + // Replace the range from from to to by the strings in newText.\n\ + // Afterwards, set the selection to selFrom, selTo.\n\ + function updateDoc(cm, from, to, newText, selFrom, selTo) {\n\ + var view = cm.view, doc = view.doc;\n\ + if (view.suppressEdits) return;\n\ + var old = [];\n\ + doc.iter(from.line, to.line + 1, function(line) {\n\ + old.push(newHL(line.text, line.markedSpans));\n\ + });\n\ + if (doc.history) {\n\ + doc.history.addChange(from.line, newText.length, old);\n\ + while (doc.history.done.length > cm.options.undoDepth) doc.history.done.shift();\n\ + }\n\ + var lines = updateMarkedSpans(hlSpans(old[0]), hlSpans(lst(old)), from.ch, to.ch, newText);\n\ + updateDocNoUndo(cm, from, to, lines, selFrom, selTo);\n\ + }\n\ + function unredoHelper(cm, from, to) {\n\ + var doc = cm.view.doc;\n\ + if (!from.length) return;\n\ + var set = from.pop(), out = [];\n\ + for (var i = set.length - 1; i >= 0; i -= 1) {\n\ + var change = set[i];\n\ + var replaced = [], end = change.start + change.added;\n\ + doc.iter(change.start, end, function(line) { replaced.push(newHL(line.text, line.markedSpans)); });\n\ + out.push({start: change.start, added: change.old.length, old: replaced});\n\ + var pos = {line: change.start + change.old.length - 1,\n\ + ch: editEnd(hlText(lst(replaced)), hlText(lst(change.old)))};\n\ + updateDocNoUndo(cm, {line: change.start, ch: 0}, {line: end - 1, ch: getLine(doc, end-1).text.length},\n\ + change.old, pos, pos);\n\ + }\n\ + to.push(out);\n\ + }\n\ + function undo(cm) {\n\ + var hist = cm.view.doc.history;\n\ + unredoHelper(cm, hist.done, hist.undone);\n\ + }\n\ + function redo(cm) {\n\ + var hist = cm.view.doc.history;\n\ + unredoHelper(cm, hist.undone, hist.done);\n\ + }\n\ +\n\ + function updateDocNoUndo(cm, from, to, lines, selFrom, selTo) {\n\ + var view = cm.view, doc = view.doc, display = cm.display;\n\ + if (view.suppressEdits) return;\n\ + var recomputeMaxLength = false, maxLineLength = view.maxLine.text.length;\n\ + if (!cm.options.lineWrapping)\n\ + doc.iter(from.line, to.line + 1, function(line) {\n\ + if (!line.hidden && line.text.length == maxLineLength) {recomputeMaxLength = true; return true;}\n\ + });\n\ +\n\ + var nlines = to.line - from.line, firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);\n\ + var lastHL = lst(lines), th = textHeight(display);\n\ +\n\ + // First adjust the line structure\n\ + if (from.ch == 0 && to.ch == 0 && hlText(lastHL) == \"\") {\n\ + // This is a whole-line replace. Treated specially to make\n\ + // sure line objects move the way they are supposed to.\n\ + var added = [], prevLine = null;\n\ + for (var i = 0, e = lines.length - 1; i < e; ++i)\n\ + added.push(new Line(hlText(lines[i]), hlSpans(lines[i]), th));\n\ + lastLine.update(lastLine.text, hlSpans(lastHL), cm);\n\ + if (nlines) doc.remove(from.line, nlines, cm);\n\ + if (added.length) doc.insert(from.line, added);\n\ + } else if (firstLine == lastLine) {\n\ + if (lines.length == 1) {\n\ + firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]) + firstLine.text.slice(to.ch),\n\ + hlSpans(lines[0]), cm);\n\ + } else {\n\ + for (var added = [], i = 1, e = lines.length - 1; i < e; ++i)\n\ + added.push(new Line(hlText(lines[i]), hlSpans(lines[i]), th));\n\ + added.push(new Line(hlText(lastHL) + firstLine.text.slice(to.ch), hlSpans(lastHL), th));\n\ + firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]), hlSpans(lines[0]), cm);\n\ + doc.insert(from.line + 1, added);\n\ + }\n\ + } else if (lines.length == 1) {\n\ + firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]) + lastLine.text.slice(to.ch),\n\ + hlSpans(lines[0]), cm);\n\ + doc.remove(from.line + 1, nlines, cm);\n\ + } else {\n\ + var added = [];\n\ + firstLine.update(firstLine.text.slice(0, from.ch) + hlText(lines[0]), hlSpans(lines[0]), cm);\n\ + lastLine.update(hlText(lastHL) + lastLine.text.slice(to.ch), hlSpans(lastHL), cm);\n\ + for (var i = 1, e = lines.length - 1; i < e; ++i)\n\ + added.push(new Line(hlText(lines[i]), hlSpans(lines[i]), th));\n\ + if (nlines > 1) doc.remove(from.line + 1, nlines - 1, cm);\n\ + doc.insert(from.line + 1, added);\n\ + }\n\ +\n\ + if (cm.options.lineWrapping) {\n\ + var perLine = Math.max(5, display.scroller.clientWidth / charWidth(display) - 3);\n\ + doc.iter(from.line, from.line + lines.length, function(line) {\n\ + if (line.hidden) return;\n\ + var guess = (Math.ceil(line.text.length / perLine) || 1) * th;\n\ + if (guess != line.height) updateLineHeight(line, guess);\n\ + });\n\ + } else {\n\ + doc.iter(from.line, from.line + lines.length, function(line) {\n\ + var l = line.text;\n\ + if (!line.hidden && l.length > maxLineLength) {\n\ + view.maxLine = line; maxLineLength = l.length; view.maxLineChanged = true;\n\ + recomputeMaxLength = false;\n\ + }\n\ + });\n\ + if (recomputeMaxLength) cm.curOp.updateMaxLine = true;\n\ + }\n\ +\n\ + // Adjust frontier, schedule worker\n\ + doc.frontier = Math.min(doc.frontier, from.line);\n\ + startWorker(cm, 400);\n\ +\n\ + var lendiff = lines.length - nlines - 1;\n\ + // Remember that these lines changed, for updating the display\n\ + regChange(cm, from.line, to.line + 1, lendiff);\n\ + if (hasHandler(cm, \"change\")) {\n\ + // Normalize lines to contain only strings, since that's what\n\ + // the change event handler expects\n\ + for (var i = 0; i < lines.length; ++i)\n\ + if (typeof lines[i] != \"string\") lines[i] = lines[i].text;\n\ + var changeObj = {from: from, to: to, text: lines};\n\ + if (cm.curOp.textChanged) {\n\ + for (var cur = cm.curOp.textChanged; cur.next; cur = cur.next) {}\n\ + cur.next = changeObj;\n\ + } else cm.curOp.textChanged = changeObj;\n\ + }\n\ +\n\ + // Update the selection\n\ + setSelection(cm, clipPos(doc, selFrom), clipPos(doc, selTo), true);\n\ + }\n\ +\n\ + function replaceRange(cm, code, from, to) {\n\ + if (!to) to = from;\n\ + if (posLess(to, from)) { var tmp = to; to = from; from = tmp; }\n\ + code = splitLines(code);\n\ + function adjustPos(pos) {\n\ + if (posLess(pos, from)) return pos;\n\ + if (!posLess(to, pos)) return end;\n\ + var line = pos.line + code.length - (to.line - from.line) - 1;\n\ + var ch = pos.ch;\n\ + if (pos.line == to.line)\n\ + ch += lst(code).length - (to.ch - (to.line == from.line ? from.ch : 0));\n\ + return {line: line, ch: ch};\n\ + }\n\ + var end;\n\ + replaceRange1(cm, code, from, to, function(end1) {\n\ + end = end1;\n\ + return {from: adjustPos(cm.view.sel.from), to: adjustPos(cm.view.sel.to)};\n\ + });\n\ + return end;\n\ + }\n\ + function replaceRange1(cm, code, from, to, computeSel) {\n\ + var endch = code.length == 1 ? code[0].length + from.ch : lst(code).length;\n\ + var newSel = computeSel({line: from.line + code.length - 1, ch: endch});\n\ + updateDoc(cm, from, to, code, newSel.from, newSel.to);\n\ + }\n\ +\n\ + // SELECTION\n\ +\n\ + function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}\n\ + function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);}\n\ + function copyPos(x) {return {line: x.line, ch: x.ch};}\n\ +\n\ + function clipLine(doc, n) {return Math.max(0, Math.min(n, doc.size-1));}\n\ + function clipPos(doc, pos) {\n\ + if (pos.line < 0) return {line: 0, ch: 0};\n\ + if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc, doc.size-1).text.length};\n\ + var ch = pos.ch, linelen = getLine(doc, pos.line).text.length;\n\ + if (ch == null || ch > linelen) return {line: pos.line, ch: linelen};\n\ + else if (ch < 0) return {line: pos.line, ch: 0};\n\ + else return pos;\n\ + }\n\ + function isLine(doc, l) {return l >= 0 && l < doc.size;}\n\ +\n\ + function setShift(view, val) {\n\ + if (val) view.sel.shift = view.sel.shift || selHead(view);\n\ + else view.sel.shift = null;\n\ + }\n\ + function setSelectionUser(cm, from, to) {\n\ + var view = cm.view, sh = view.sel.shift;\n\ + if (sh) {\n\ + sh = clipPos(view.doc, sh);\n\ + if (posLess(sh, from)) from = sh;\n\ + else if (posLess(to, sh)) to = sh;\n\ + }\n\ + setSelection(cm, from, to);\n\ + cm.curOp.userSelChange = true;\n\ + }\n\ +\n\ + // Update the selection. Last two args are only used by\n\ + // updateDoc, since they have to be expressed in the line\n\ + // numbers before the update.\n\ + function setSelection(cm, from, to, isChange) {\n\ + cm.curOp.updateInput = true;\n\ + var sel = cm.view.sel, doc = cm.view.doc;\n\ + cm.view.goalColumn = null;\n\ + if (posEq(sel.from, from) && posEq(sel.to, to)) return;\n\ + if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}\n\ +\n\ + // Skip over hidden lines.\n\ + if (isChange || from.line != sel.from.line) {\n\ + var from1 = skipHidden(doc, from, sel.from.line, sel.from.ch, cm);\n\ + // If there is no non-hidden line left, force visibility on current line\n\ + if (!from1) cm.unfoldLines(getLine(doc, from.line).hidden.id);\n\ + else from = from1;\n\ + }\n\ + if (isChange || to.line != sel.to.line) to = skipHidden(doc, to, sel.to.line, sel.to.ch, cm);\n\ +\n\ + if (posEq(from, to)) sel.inverted = false;\n\ + else if (posEq(from, sel.to)) sel.inverted = false;\n\ + else if (posEq(to, sel.from)) sel.inverted = true;\n\ +\n\ + if (cm.options.autoClearEmptyLines && posEq(sel.from, sel.to)) {\n\ + var head = selHead(cm.view);\n\ + if (head.line != sel.from.line && sel.from.line < doc.size) {\n\ + var oldLine = getLine(doc, sel.from.line);\n\ + if (/^\\s+$/.test(oldLine.text))\n\ + setTimeout(operation(cm, function() {\n\ + if (oldLine.parent && /^\\s+$/.test(oldLine.text)) {\n\ + var no = lineNo(oldLine);\n\ + replaceRange(cm, \"\", {line: no, ch: 0}, {line: no, ch: oldLine.text.length});\n\ + }\n\ + }, 10));\n\ + }\n\ + }\n\ +\n\ + sel.from = from; sel.to = to;\n\ + cm.curOp.selectionChanged = true;\n\ + }\n\ +\n\ + function skipHidden(doc, pos, oldLine, oldCh, allowUnfold) {\n\ + function getNonHidden(dir) {\n\ + var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1;\n\ + while (lNo != end) {\n\ + var line = getLine(doc, lNo);\n\ + if (!line.hidden) {\n\ + var ch = pos.ch;\n\ + if (toEnd || ch > oldCh || ch > line.text.length) ch = line.text.length;\n\ + return {line: lNo, ch: ch};\n\ + }\n\ + lNo += dir;\n\ + }\n\ + }\n\ + var line = getLine(doc, pos.line);\n\ + while (allowUnfold && line.hidden && line.hidden.handle.unfoldOnEnter)\n\ + allowUnfold.unfoldLines(line.hidden.handle);\n\ + if (!line.hidden) return pos;\n\ + var toEnd = pos.ch == line.text.length && pos.ch != oldCh;\n\ + if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1);\n\ + else return getNonHidden(-1) || getNonHidden(1);\n\ + }\n\ +\n\ + // SCROLLING\n\ +\n\ + function scrollCursorIntoView(cm) {\n\ + var view = cm.view, coords = cursorCoords(cm, selHead(view));\n\ + scrollIntoView(cm.display, coords.left, coords.top, coords.left, coords.bottom);\n\ + if (!view.focused) return;\n\ + var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;\n\ + if (coords.top + box.top < 0) doScroll = true;\n\ + else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;\n\ + if (doScroll != null) {\n\ + var hidden = display.cursor.style.display == \"none\";\n\ + if (hidden) {\n\ + display.cursor.style.display = \"\";\n\ + display.cursor.style.left = coords.left + \"px\";\n\ + display.cursor.style.top = (coords.top - display.viewOffset) + \"px\";\n\ + }\n\ + display.cursor.scrollIntoView(doScroll);\n\ + if (hidden) display.cursor.style.display = \"none\";\n\ + }\n\ + }\n\ +\n\ + function scrollIntoView(display, x1, y1, x2, y2) {\n\ + var scrollPos = calculateScrollPos(display, x1, y1, x2, y2);\n\ + if (scrollPos.scrollLeft != null) {display.scrollbarH.scrollLeft = display.scroller.scrollLeft = scrollPos.scrollLeft;}\n\ + if (scrollPos.scrollTop != null) {display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos.scrollTop;}\n\ + }\n\ +\n\ + function calculateScrollPos(display, x1, y1, x2, y2) {\n\ + var pt = paddingTop(display);\n\ + y1 += pt; y2 += pt;\n\ + var screen = display.scroller.clientHeight - scrollerCutOff, screentop = display.scroller.scrollTop, result = {};\n\ + var docBottom = display.scroller.scrollHeight - scrollerCutOff;\n\ + var atTop = y1 < pt + 10, atBottom = y2 + pt > docBottom - 10;\n\ + if (y1 < screentop) result.scrollTop = atTop ? 0 : Math.max(0, y1);\n\ + else if (y2 > screentop + screen) result.scrollTop = (atBottom ? docBottom : y2 - screen);\n\ +\n\ + var screenw = display.scroller.clientWidth - scrollerCutOff, screenleft = display.scroller.scrollLeft;\n\ + x1 += display.gutters.offsetWidth; x2 += display.gutters.offsetWidth;\n\ + var gutterw = display.gutters.offsetWidth;\n\ + var atLeft = x1 < gutterw + 10;\n\ + if (x1 < screenleft + gutterw || atLeft) {\n\ + if (atLeft) x1 = 0;\n\ + result.scrollLeft = Math.max(0, x1 - 10 - gutterw);\n\ + } else if (x2 > screenw + screenleft - 3) {\n\ + result.scrollLeft = x2 + 10 - screenw;\n\ + }\n\ + return result;\n\ + }\n\ +\n\ + // API UTILITIES\n\ +\n\ + function indentLine(cm, n, how) {\n\ + var doc = cm.view.doc;\n\ + if (!how) how = \"add\";\n\ + if (how == \"smart\") {\n\ + if (!doc.mode.indent) how = \"prev\";\n\ + else var state = getStateBefore(doc, n);\n\ + }\n\ +\n\ + var line = getLine(doc, n), curSpace = line.indentation(doc.tabSize),\n\ + curSpaceString = line.text.match(/^\\s*/)[0], indentation;\n\ + if (how == \"smart\") {\n\ + indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);\n\ + if (indentation == Pass) how = \"prev\";\n\ + }\n\ + if (how == \"prev\") {\n\ + if (n) indentation = getLine(doc, n-1).indentation(doc.tabSize);\n\ + else indentation = 0;\n\ + }\n\ + else if (how == \"add\") indentation = curSpace + cm.options.indentUnit;\n\ + else if (how == \"subtract\") indentation = curSpace - cm.options.indentUnit;\n\ + indentation = Math.max(0, indentation);\n\ + var diff = indentation - curSpace;\n\ +\n\ + var indentString = \"\", pos = 0;\n\ + if (cm.options.indentWithTabs)\n\ + for (var i = Math.floor(indentation / doc.tabSize); i; --i) {pos += doc.tabSize; indentString += \"\\t\";}\n\ + if (pos < indentation) indentString += spaceStr(indentation - pos);\n\ +\n\ + if (indentString != curSpaceString)\n\ + replaceRange(cm, indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length});\n\ + }\n\ +\n\ + function changeLine(cm, handle, op) {\n\ + var no = handle, line = handle, doc = cm.view.doc;\n\ + if (typeof handle == \"number\") line = getLine(doc, clipLine(doc, handle));\n\ + else no = lineNo(handle);\n\ + if (no == null) return null;\n\ + if (op(line, no)) regChange(cm, no, no + 1);\n\ + else return null;\n\ + return line;\n\ + }\n\ +\n\ + function findPosH(cm, dir, unit, visually) {\n\ + var doc = cm.view.doc, end = selHead(cm.view), line = end.line, ch = end.ch;\n\ + var lineObj = getLine(doc, line);\n\ + function findNextLine() {\n\ + for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) {\n\ + var lo = getLine(doc, l);\n\ + if (!lo.hidden || !lo.hidden.handle.unfoldOnEneter) { line = l; lineObj = lo; return true; }\n\ + }\n\ + }\n\ + function moveOnce(boundToLine) {\n\ + var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);\n\ + if (next == null) {\n\ + if (!boundToLine && findNextLine()) {\n\ + if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);\n\ + else ch = dir < 0 ? lineObj.text.length : 0;\n\ + } else return false;\n\ + } else ch = next;\n\ + return true;\n\ + }\n\ + if (unit == \"char\") moveOnce();\n\ + else if (unit == \"column\") moveOnce(true);\n\ + else if (unit == \"word\") {\n\ + var sawWord = false;\n\ + for (;;) {\n\ + if (dir < 0) if (!moveOnce()) break;\n\ + if (isWordChar(lineObj.text.charAt(ch))) sawWord = true;\n\ + else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;}\n\ + if (dir > 0) if (!moveOnce()) break;\n\ + }\n\ + }\n\ + return {line: line, ch: ch};\n\ + }\n\ +\n\ + function findWordAt(line, pos) {\n\ + var start = pos.ch, end = pos.ch;\n\ + if (line) {\n\ + if (pos.after === false || end == line.length) --start; else ++end;\n\ + var startChar = line.charAt(start);\n\ + var check = isWordChar(startChar) ? isWordChar :\n\ + /\\s/.test(startChar) ? function(ch) {return /\\s/.test(ch);} :\n\ + function(ch) {return !/\\s/.test(ch) && !isWordChar(ch);};\n\ + while (start > 0 && check(line.charAt(start - 1))) --start;\n\ + while (end < line.length && check(line.charAt(end))) ++end;\n\ + }\n\ + return {from: {line: pos.line, ch: start}, to: {line: pos.line, ch: end}};\n\ + }\n\ +\n\ + function selectLine(cm, line) {\n\ + setSelectionUser(cm, {line: line, ch: 0}, clipPos(cm.view.doc, {line: line + 1, ch: 0}));\n\ + }\n\ +\n\ + // PROTOTYPE\n\ +\n\ + // The publicly visible API. Note that operation(null, f) means\n\ + // 'wrap f in an operation, performed on its `this` parameter'\n\ +\n\ + CodeMirror.prototype = {\n\ + getValue: function(lineSep) {\n\ + var text = [], doc = this.view.doc;\n\ + doc.iter(0, doc.size, function(line) { text.push(line.text); });\n\ + return text.join(lineSep || \"\\n\");\n\ + },\n\ +\n\ + setValue: operation(null, function(code) {\n\ + var doc = this.view.doc, top = {line: 0, ch: 0}, lastLen = getLine(doc, doc.size-1).text.length;\n\ + updateDoc(this, top, {line: doc.size - 1, ch: lastLen}, splitLines(code), top, top);\n\ + }),\n\ +\n\ + getSelection: function(lineSep) { return this.getRange(this.view.sel.from, this.view.sel.to, lineSep); },\n\ +\n\ + replaceSelection: operation(null, function(code, collapse) {\n\ + var sel = this.view.sel;\n\ + replaceRange1(this, splitLines(code), sel.from, sel.to, function(end) {\n\ + if (collapse == \"end\") return {from: end, to: end};\n\ + else if (collapse == \"start\") return {from: sel.from, to: sel.from};\n\ + else return {from: sel.from, to: end};\n\ + });\n\ + }),\n\ +\n\ + focus: function(){window.focus(); focusInput(this); onFocus(this); fastPoll(this);},\n\ +\n\ + setOption: function(option, value) {\n\ + var options = this.options;\n\ + if (options[option] == value && option != \"mode\") return;\n\ + options[option] = value;\n\ + if (option == \"mode\" || option == \"indentUnit\") loadMode(this);\n\ + else if (option == \"readOnly\" && value == \"nocursor\") {onBlur(this); this.display.input.blur();}\n\ + else if (option == \"readOnly\" && !value) {resetInput(this, true);}\n\ + else if (option == \"theme\") themeChanged(this);\n\ + else if (option == \"lineWrapping\") operation(this, wrappingChanged)(this);\n\ + else if (option == \"tabSize\") {this.view.doc.tabSize = value; updateDisplay(this, true);}\n\ + else if (option == \"keyMap\") keyMapChanged(this);\n\ + else if (option == \"gutters\" || option == \"lineNumbers\") setGuttersForLineNumbers(this.options);\n\ + if (option == \"lineNumbers\" || option == \"gutters\" || option == \"firstLineNumber\" ||\n\ + option == \"theme\" || option == \"lineNumberFormatter\")\n\ + guttersChanged(this);\n\ + if (optionHandlers.hasOwnProperty(option))\n\ + optionHandlers[option](this, value);\n\ + },\n\ +\n\ + getOption: function(option) {return this.options[option];},\n\ +\n\ + getMode: function() {return this.view.doc.mode;},\n\ +\n\ + undo: operation(null, function() {\n\ + var hist = this.view.doc.history;\n\ + unredoHelper(this, hist.done, hist.undone);\n\ + }),\n\ + redo: operation(null, function() {\n\ + var hist = this.view.doc.history;\n\ + unredoHelper(this, hist.undone, hist.done);\n\ + }),\n\ +\n\ + indentLine: operation(null, function(n, dir) {\n\ + if (typeof dir != \"string\") {\n\ + if (dir == null) dir = this.options.smartIndent ? \"smart\" : \"prev\";\n\ + else dir = dir ? \"add\" : \"subtract\";\n\ + }\n\ + if (isLine(this.view.doc, n)) indentLine(this, n, dir);\n\ + }),\n\ +\n\ + indentSelection: operation(null, function(how) {\n\ + var sel = this.view.sel;\n\ + if (posEq(sel.from, sel.to)) return indentLine(this, sel.from.line, how);\n\ + var e = sel.to.line - (sel.to.ch ? 0 : 1);\n\ + for (var i = sel.from.line; i <= e; ++i) indentLine(this, i, how);\n\ + }),\n\ +\n\ + historySize: function() {\n\ + var hist = this.view.doc.history;\n\ + return {undo: hist.done.length, redo: hist.undone.length};\n\ + },\n\ +\n\ + clearHistory: function() {this.view.doc.history = new History();},\n\ +\n\ + getHistory: function() {\n\ + var hist = this.view.doc.history;\n\ + function cp(arr) {\n\ + for (var i = 0, nw = [], nwelt; i < arr.length; ++i) {\n\ + nw.push(nwelt = []);\n\ + for (var j = 0, elt = arr[i]; j < elt.length; ++j) {\n\ + var old = [], cur = elt[j];\n\ + nwelt.push({start: cur.start, added: cur.added, old: old});\n\ + for (var k = 0; k < cur.old.length; ++k) old.push(hlText(cur.old[k]));\n\ + }\n\ + }\n\ + return nw;\n\ + }\n\ + return {done: cp(hist.done), undone: cp(hist.undone)};\n\ + },\n\ +\n\ + setHistory: function(histData) {\n\ + var hist = this.view.doc.history = new History();\n\ + hist.done = histData.done;\n\ + hist.undone = histData.undone;\n\ + },\n\ +\n\ + getTokenAt: function(pos) {\n\ + var doc = this.view.doc;\n\ + pos = clipPos(doc, pos);\n\ + return getLine(doc, pos.line).getTokenAt(doc.mode, getStateBefore(doc, pos.line),\n\ + this.options.tabSize, pos.ch);\n\ + },\n\ +\n\ + getStateAfter: function(line) {\n\ + var doc = this.view.doc;\n\ + line = clipLine(doc, line == null ? doc.size - 1: line);\n\ + return getStateBefore(doc, line + 1);\n\ + },\n\ +\n\ + cursorCoords: function(start, mode) {\n\ + var pos, sel = this.view.sel;\n\ + if (start == null) start = sel.inverted;\n\ + if (typeof start == \"object\") pos = clipPos(this.view.doc, start);\n\ + else pos = start ? sel.from : sel.to;\n\ + return cursorCoords(this, pos, mode || \"page\");\n\ + },\n\ +\n\ + charCoords: function(pos, mode) {\n\ + return charCoords(this, clipPos(this.view.doc, pos), mode || \"page\");\n\ + },\n\ +\n\ + coordsChar: function(coords) {\n\ + var off = this.display.lineSpace.getBoundingClientRect();\n\ + return coordsChar(this, coords.left - off.left, coords.top - off.top);\n\ + },\n\ +\n\ + markText: operation(null, function(from, to, className, options) {\n\ + var doc = this.view.doc;\n\ + from = clipPos(doc, from); to = clipPos(doc, to);\n\ + var marker = new TextMarker(this, \"range\", className);\n\ + if (options) for (var opt in options) if (options.hasOwnProperty(opt))\n\ + marker[opt] = options[opt];\n\ + var curLine = from.line;\n\ + doc.iter(curLine, to.line + 1, function(line) {\n\ + var span = {from: curLine == from.line ? from.ch : null,\n\ + to: curLine == to.line ? to.ch : null,\n\ + marker: marker};\n\ + (line.markedSpans || (line.markedSpans = [])).push(span);\n\ + marker.lines.push(line);\n\ + ++curLine;\n\ + });\n\ + regChange(this, from.line, to.line + 1);\n\ + return marker;\n\ + }),\n\ +\n\ + setBookmark: function(pos) {\n\ + var doc = this.view.doc;\n\ + pos = clipPos(doc, pos);\n\ + var marker = new TextMarker(this, \"bookmark\"), line = getLine(doc, pos.line);\n\ + var span = {from: pos.ch, to: pos.ch, marker: marker};\n\ + (line.markedSpans || (line.markedSpans = [])).push(span);\n\ + marker.lines.push(line);\n\ + return marker;\n\ + },\n\ +\n\ + findMarksAt: function(pos) {\n\ + var doc = this.view.doc;\n\ + pos = clipPos(doc, pos);\n\ + var markers = [], spans = getLine(doc, pos.line).markedSpans;\n\ + if (spans) for (var i = 0; i < spans.length; ++i) {\n\ + var span = spans[i];\n\ + if ((span.from == null || span.from <= pos.ch) &&\n\ + (span.to == null || span.to >= pos.ch))\n\ + markers.push(span.marker);\n\ + }\n\ + return markers;\n\ + },\n\ +\n\ + setGutterMarker: operation(null, function(line, gutterID, value) {\n\ + return changeLine(this, line, function(line) {\n\ + var markers = line.gutterMarkers || (line.gutterMarkers = {});\n\ + markers[gutterID] = value;\n\ + if (!value && isEmpty(markers)) line.gutterMarkers = null;\n\ + return true;\n\ + });\n\ + }),\n\ +\n\ + clearGutter: operation(null, function(gutterID) {\n\ + var i = 0, cm = this, doc = cm.view.doc;\n\ + doc.iter(0, doc.size, function(line) {\n\ + if (line.gutterMarkers && line.gutterMarkers[gutterID]) {\n\ + line.gutterMarkers[gutterID] = null;\n\ + regChange(cm, i, i + 1);\n\ + if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;\n\ + }\n\ + ++i;\n\ + });\n\ + }),\n\ +\n\ + setLineClass: operation(null, function(handle, className, bgClassName) {\n\ + return changeLine(this, handle, function(line) {\n\ + if (line.className != className || line.bgClassName != bgClassName) {\n\ + line.className = className;\n\ + line.bgClassName = bgClassName;\n\ + return true;\n\ + }\n\ + });\n\ + }),\n\ +\n\ + addLineWidget: operation(null, function addLineWidget(handle, node, options) {\n\ + var widget = options || {};\n\ + widget.node = node;\n\ + if (widget.noHScroll) this.display.alignWidgets = true;\n\ + changeLine(this, handle, function(line) {\n\ + (line.widgets || (line.widgets = [])).push(widget);\n\ + widget.line = line;\n\ + return true;\n\ + });\n\ + return widget;\n\ + }),\n\ +\n\ + removeLineWidget: operation(null, function(widget) {\n\ + var ws = widget.line.widgets, no = lineNo(widget.line);\n\ + if (no == null) return;\n\ + for (var i = 0; i < ws.length; ++i) if (ws[i] == widget) ws.splice(i--, 1);\n\ + regChange(this, no, no + 1);\n\ + }),\n\ +\n\ + foldLines: operation(null, function(from, to, unfoldOnEnter) {\n\ + if (typeof from != \"number\") from = lineNo(from);\n\ + if (typeof to != \"number\") to = lineNo(to);\n\ + if (from > to) return;\n\ + var lines = [], handle = {lines: lines, unfoldOnEnter: unfoldOnEnter}, cm = this, view = cm.view, doc = view.doc;\n\ + doc.iter(from, to, function(line) {\n\ + lines.push(line);\n\ + if (!line.hidden && line.text.length == cm.view.maxLine.text.length)\n\ + cm.curOp.updateMaxLine = true;\n\ + line.hidden = {handle: handle, prev: line.hidden};\n\ + updateLineHeight(line, 0);\n\ + });\n\ + var sel = view.sel, selFrom = sel.from, selTo = sel.to;\n\ + if (selFrom.line >= from && selFrom.line < to)\n\ + selFrom = skipHidden(doc, {line: selFrom.line, ch: 0}, selFrom.line, 0);\n\ + if (selTo.line >= from && selTo.line < to)\n\ + selTo = skipHidden(doc, {line: selTo.line, ch: 0}, selTo.line, 0);\n\ + if (selFrom != sel.from || selTo != sel.to) setSelection(this, selFrom, selTo);\n\ + regChange(cm, from, to);\n\ + return handle;\n\ + }),\n\ +\n\ + unfoldLines: operation(null, function(handle) {\n\ + var from, to;\n\ + for (var i = 0; i < handle.lines.length; ++i) {\n\ + var line = handle.lines[i], hidden = line.hidden;\n\ + if (!line.parent) continue;\n\ + if (hidden && hidden.handle == handle) line.hidden = line.hidden.prev;\n\ + else for (var h = hidden; h; h = h.prev) if (h.prev && h.prev.handle == handle) h.prev = h.prev.prev;\n\ + if (hidden && !line.hidden) {\n\ + var no = lineNo(handle);\n\ + from = Math.min(from, no); to = Math.max(to, no);\n\ + updateLineHeight(line, textHeight(this.display));\n\ + if (line.text.length > this.view.maxLine.text.length) {\n\ + this.view.maxLine = line;\n\ + this.view.maxLineChanged = true;\n\ + }\n\ + }\n\ + }\n\ + if (from != null) {\n\ + regChange(this, from, to + 1);\n\ + signalLater(this, handle, \"unfold\");\n\ + }\n\ + }),\n\ +\n\ + lineInfo: function(line) {\n\ + if (typeof line == \"number\") {\n\ + if (!isLine(this.view.doc, line)) return null;\n\ + var n = line;\n\ + line = getLine(this.view.doc, line);\n\ + if (!line) return null;\n\ + } else {\n\ + var n = lineNo(line);\n\ + if (n == null) return null;\n\ + }\n\ + return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,\n\ + lineClass: line.className, bgClass: line.bgClassName, widgets: line.widgets};\n\ + },\n\ +\n\ + getViewport: function() { return {from: this.display.showingFrom, to: this.display.showingTo};},\n\ +\n\ + addWidget: function(pos, node, scroll, vert, horiz) {\n\ + var display = this.display;\n\ + pos = cursorCoords(this, clipPos(this.view.doc, pos));\n\ + var top = pos.top, left = pos.left;\n\ + node.style.position = \"absolute\";\n\ + display.sizer.appendChild(node);\n\ + if (vert == \"over\") top = pos.top;\n\ + else if (vert == \"near\") {\n\ + var vspace = Math.max(display.wrapper.clientHeight, this.view.doc.height),\n\ + hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);\n\ + if (pos.bottom + node.offsetHeight > vspace && pos.top > node.offsetHeight)\n\ + top = pos.top - node.offsetHeight;\n\ + if (left + node.offsetWidth > hspace)\n\ + left = hspace - node.offsetWidth;\n\ + }\n\ + node.style.top = (top + paddingTop(display)) + \"px\";\n\ + node.style.left = node.style.right = \"\";\n\ + if (horiz == \"right\") {\n\ + left = display.sizer.clientWidth - node.offsetWidth;\n\ + node.style.right = \"0px\";\n\ + } else {\n\ + if (horiz == \"left\") left = 0;\n\ + else if (horiz == \"middle\") left = (display.sizer.clientWidth - node.offsetWidth) / 2;\n\ + node.style.left = left + \"px\";\n\ + }\n\ + if (scroll)\n\ + scrollIntoView(display, left, top, left + node.offsetWidth, top + node.offsetHeight);\n\ + },\n\ +\n\ + lineCount: function() {return this.view.doc.size;},\n\ +\n\ + clipPos: function(pos) {return clipPos(this.view.doc, pos);},\n\ +\n\ + getCursor: function(start) {\n\ + var sel = this.view.sel;\n\ + if (start == null) start = sel.inverted;\n\ + return copyPos(start ? sel.from : sel.to);\n\ + },\n\ +\n\ + somethingSelected: function() {return !posEq(this.view.sel.from, this.view.sel.to);},\n\ +\n\ + setCursor: operation(null, function(line, ch, user) {\n\ + var pos = typeof line == \"number\" ? {line: line, ch: ch || 0} : line;\n\ + (user ? setSelectionUser : setSelection)(this, pos, pos);\n\ + }),\n\ +\n\ + setSelection: operation(null, function(from, to, user) {\n\ + var doc = this.view.doc;\n\ + (user ? setSelectionUser : setSelection)(this, clipPos(doc, from), clipPos(doc, to || from));\n\ + }),\n\ +\n\ + getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},\n\ +\n\ + getLineHandle: function(line) {\n\ + var doc = this.view.doc;\n\ + if (isLine(doc, line)) return getLine(doc, line);\n\ + },\n\ +\n\ + getLineNumber: function(line) {return lineNo(line);},\n\ +\n\ + setLine: operation(null, function(line, text) {\n\ + if (isLine(this.view.doc, line))\n\ + replaceRange(this, text, {line: line, ch: 0}, {line: line, ch: getLine(this.view.doc, line).text.length});\n\ + }),\n\ +\n\ + removeLine: operation(null, function(line) {\n\ + if (isLine(this.view.doc, line))\n\ + replaceRange(this, \"\", {line: line, ch: 0}, clipPos(this.view.doc, {line: line+1, ch: 0}));\n\ + }),\n\ +\n\ + replaceRange: operation(null, function(code, from, to) {\n\ + var doc = this.view.doc;\n\ + from = clipPos(doc, from);\n\ + to = to ? clipPos(doc, to) : from;\n\ + return replaceRange(this, code, from, to);\n\ + }),\n\ +\n\ + getRange: function(from, to, lineSep) {\n\ + var doc = this.view.doc;\n\ + from = clipPos(doc, from); to = clipPos(doc, to);\n\ + var l1 = from.line, l2 = to.line;\n\ + if (l1 == l2) return getLine(doc, l1).text.slice(from.ch, to.ch);\n\ + var code = [getLine(doc, l1).text.slice(from.ch)];\n\ + doc.iter(l1 + 1, l2, function(line) { code.push(line.text); });\n\ + code.push(getLine(doc, l2).text.slice(0, to.ch));\n\ + return code.join(lineSep || \"\\n\");\n\ + },\n\ +\n\ + triggerOnKeyDown: operation(null, onKeyDown),\n\ +\n\ + execCommand: function(cmd) {return commands[cmd](this);},\n\ +\n\ + // Stuff used by commands, probably not much use to outside code.\n\ + moveH: operation(null, function(dir, unit) {\n\ + var sel = this.view.sel, pos = dir < 0 ? sel.from : sel.to;\n\ + if (sel.shift || posEq(sel.from, sel.to)) pos = findPosH(this, dir, unit, true);\n\ + setSelectionUser(this, pos, pos);\n\ + }),\n\ +\n\ + deleteH: operation(null, function(dir, unit) {\n\ + var sel = this.view.sel;\n\ + if (!posEq(sel.from, sel.to)) replaceRange(this, \"\", sel.from, sel.to);\n\ + else replaceRange(this, \"\", sel.from, findPosH(this, dir, unit, false));\n\ + this.curOp.userSelChange = true;\n\ + }),\n\ +\n\ + moveV: operation(null, function(dir, unit) {\n\ + var view = this.view, doc = view.doc, display = this.display;\n\ + var dist = 0, cur = selHead(view), pos = cursorCoords(this, cur, \"div\");\n\ + var x = pos.left, y;\n\ + if (view.goalColumn != null) x = view.goalColumn;\n\ + if (unit == \"page\") {\n\ + var pageSize = Math.min(display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);\n\ + y = pos.top + dir * pageSize;\n\ + } else if (unit == \"line\") {\n\ + y = dir > 0 ? pos.bottom + 3 : pos.top - 3;\n\ + }\n\ + var target = coordsChar(this, x, y), line;\n\ + // Work around problem with moving 'through' line widgets\n\ + if (dir > 0 && target.line == cur.line && cur.line < doc.size - 1 && getLine(doc, cur.line).widgets &&\n\ + Math.abs(cursorCoords(this, target, \"div\").top - pos.top) < 2)\n\ + target = coordsChar(this, x, cursorCoords(this, {line: cur.line + 1, ch: 0}, \"div\").top + 3);\n\ + else if (dir < 0 && cur.line > 0 && (line = getLine(doc, target.line)).widgets && target.ch == line.text.length)\n\ + target = coordsChar(this, x, cursorCoords(this, {line: target.line, ch: line.text.length}, \"div\").bottom - 3);\n\ + \n\ + if (unit == \"page\") display.scrollbarV.scrollTop += charCoords(this, target, \"div\").top - pos.top;\n\ + setSelectionUser(this, target, target);\n\ + view.goalColumn = x;\n\ + }),\n\ +\n\ + toggleOverwrite: function() {\n\ + if (this.view.overwrite = !this.view.overwrite)\n\ + this.display.cursor.className += \" CodeMirror-overwrite\";\n\ + else\n\ + this.display.cursor.className = this.display.cursor.className.replace(\" CodeMirror-overwrite\", \"\");\n\ + },\n\ +\n\ + posFromIndex: function(off) {\n\ + var lineNo = 0, ch, doc = this.view.doc;\n\ + doc.iter(0, doc.size, function(line) {\n\ + var sz = line.text.length + 1;\n\ + if (sz > off) { ch = off; return true; }\n\ + off -= sz;\n\ + ++lineNo;\n\ + });\n\ + return clipPos(doc, {line: lineNo, ch: ch});\n\ + },\n\ + indexFromPos: function (coords) {\n\ + if (coords.line < 0 || coords.ch < 0) return 0;\n\ + var index = coords.ch;\n\ + this.view.doc.iter(0, coords.line, function (line) {\n\ + index += line.text.length + 1;\n\ + });\n\ + return index;\n\ + },\n\ +\n\ + scrollTo: function(x, y) {\n\ + if (x != null) this.display.scrollbarH.scrollLeft = this.display.scroller.scrollLeft = x;\n\ + if (y != null) this.display.scrollbarV.scrollTop = this.display.scroller.scrollTop = y;\n\ + updateDisplay(this, []);\n\ + },\n\ + getScrollInfo: function() {\n\ + var scroller = this.display.scroller, co = scrollerCutOff;\n\ + return {left: scroller.scrollLeft, top: scroller.scrollTop,\n\ + height: scroller.scrollHeight - co, width: scroller.scrollWidth - co,\n\ + clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co};\n\ + },\n\ +\n\ + setSize: function(width, height) {\n\ + function interpret(val) {\n\ + val = String(val);\n\ + return /^\\d+$/.test(val) ? val + \"px\" : val;\n\ + }\n\ + if (width != null) this.display.wrapper.style.width = interpret(width);\n\ + if (height != null) this.display.wrapper.style.height = interpret(height);\n\ + this.refresh();\n\ + },\n\ +\n\ + on: function(type, f) {on(this, type, f);},\n\ + off: function(type, f) {off(this, type, f);},\n\ +\n\ + operation: function(f){return operation(this, f)();},\n\ + compoundChange: function(f){return compoundChange(this, f);},\n\ +\n\ + refresh: function(){\n\ + updateDisplay(this, true, this.view.scrollTop);\n\ + if (this.display.scrollbarV.scrollHeight > this.view.scrollTop)\n\ + this.display.scrollbarV.scrollTop = this.view.scrollTop;\n\ + },\n\ +\n\ + getInputField: function(){return this.display.input;},\n\ + getWrapperElement: function(){return this.display.wrapper;},\n\ + getScrollerElement: function(){return this.display.scroller;},\n\ + getGutterElement: function(){return this.display.gutters;}\n\ + };\n\ +\n\ + // OPTION DEFAULTS\n\ +\n\ + // The default configuration options.\n\ + var defaults = CodeMirror.defaults = {\n\ + value: \"\",\n\ + mode: null,\n\ + theme: \"default\",\n\ + indentUnit: 2,\n\ + indentWithTabs: false,\n\ + smartIndent: true,\n\ + tabSize: 4,\n\ + keyMap: \"default\",\n\ + extraKeys: null,\n\ + electricChars: true,\n\ + autoClearEmptyLines: false,\n\ + onKeyEvent: null,\n\ + onDragEvent: null,\n\ + lineWrapping: false,\n\ + lineNumbers: false,\n\ + gutters: [],\n\ + fixedGutter: false,\n\ + firstLineNumber: 1,\n\ + readOnly: false,\n\ + dragDrop: true,\n\ + cursorBlinkRate: 530,\n\ + workTime: 100,\n\ + workDelay: 200,\n\ + pollInterval: 100,\n\ + undoDepth: 40,\n\ + tabindex: null,\n\ + autofocus: null,\n\ + lineNumberFormatter: function(integer) { return integer; }\n\ + };\n\ +\n\ + // MODE DEFINITION AND QUERYING\n\ +\n\ + // Known modes, by name and by MIME\n\ + var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};\n\ +\n\ + CodeMirror.defineMode = function(name, mode) {\n\ + if (!CodeMirror.defaults.mode && name != \"null\") CodeMirror.defaults.mode = name;\n\ + if (arguments.length > 2) {\n\ + mode.dependencies = [];\n\ + for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);\n\ + }\n\ + modes[name] = mode;\n\ + };\n\ +\n\ + CodeMirror.defineMIME = function(mime, spec) {\n\ + mimeModes[mime] = spec;\n\ + };\n\ +\n\ + CodeMirror.resolveMode = function(spec) {\n\ + if (typeof spec == \"string\" && mimeModes.hasOwnProperty(spec))\n\ + spec = mimeModes[spec];\n\ + else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+xml$/.test(spec))\n\ + return CodeMirror.resolveMode(\"application/xml\");\n\ + if (typeof spec == \"string\") return {name: spec};\n\ + else return spec || {name: \"null\"};\n\ + };\n\ +\n\ + CodeMirror.getMode = function(options, spec) {\n\ + var spec = CodeMirror.resolveMode(spec);\n\ + var mfactory = modes[spec.name];\n\ + if (!mfactory) return CodeMirror.getMode(options, \"text/plain\");\n\ + var modeObj = mfactory(options, spec);\n\ + if (modeExtensions.hasOwnProperty(spec.name)) {\n\ + var exts = modeExtensions[spec.name];\n\ + for (var prop in exts) if (exts.hasOwnProperty(prop)) modeObj[prop] = exts[prop];\n\ + }\n\ + modeObj.name = spec.name;\n\ + return modeObj;\n\ + };\n\ +\n\ + CodeMirror.defineMode(\"null\", function() {\n\ + return {token: function(stream) {stream.skipToEnd();}};\n\ + });\n\ + CodeMirror.defineMIME(\"text/plain\", \"null\");\n\ +\n\ + var modeExtensions = CodeMirror.modeExtensions = {};\n\ + CodeMirror.extendMode = function(mode, properties) {\n\ + var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});\n\ + for (var prop in properties) if (properties.hasOwnProperty(prop))\n\ + exts[prop] = properties[prop];\n\ + };\n\ +\n\ + // EXTENSIONS\n\ +\n\ + CodeMirror.defineExtension = function(name, func) {\n\ + CodeMirror.prototype[name] = func;\n\ + };\n\ + var optionHandlers = CodeMirror.optionHandlers = {};\n\ + CodeMirror.defineOption = function(name, deflt, handler) {\n\ + CodeMirror.defaults[name] = deflt;\n\ + optionHandlers[name] = handler;\n\ + };\n\ +\n\ + // MODE STATE HANDLING\n\ +\n\ + // Utility functions for working with state. Exported because modes\n\ + // sometimes need to do this.\n\ + function copyState(mode, state) {\n\ + if (state === true) return state;\n\ + if (mode.copyState) return mode.copyState(state);\n\ + var nstate = {};\n\ + for (var n in state) {\n\ + var val = state[n];\n\ + if (val instanceof Array) val = val.concat([]);\n\ + nstate[n] = val;\n\ + }\n\ + return nstate;\n\ + }\n\ + CodeMirror.copyState = copyState;\n\ +\n\ + function startState(mode, a1, a2) {\n\ + return mode.startState ? mode.startState(a1, a2) : true;\n\ + }\n\ + CodeMirror.startState = startState;\n\ +\n\ + CodeMirror.innerMode = function(mode, state) {\n\ + while (mode.innerMode) {\n\ + var info = mode.innerMode(state);\n\ + state = info.state;\n\ + mode = info.mode;\n\ + }\n\ + return info || {mode: mode, state: state};\n\ + };\n\ +\n\ + // STANDARD COMMANDS\n\ +\n\ + var commands = CodeMirror.commands = {\n\ + selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});},\n\ + killLine: function(cm) {\n\ + var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);\n\ + if (!sel && cm.getLine(from.line).length == from.ch)\n\ + cm.replaceRange(\"\", from, {line: from.line + 1, ch: 0});\n\ + else cm.replaceRange(\"\", from, sel ? to : {line: from.line});\n\ + },\n\ + deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange(\"\", {line: l, ch: 0}, {line: l});},\n\ + undo: function(cm) {cm.undo();},\n\ + redo: function(cm) {cm.redo();},\n\ + goDocStart: function(cm) {cm.setCursor(0, 0, true);},\n\ + goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);},\n\ + goLineStart: function(cm) {\n\ + var line = cm.getCursor().line;\n\ + cm.setCursor(line, lineStart(cm.getLineHandle(line)), true);\n\ + },\n\ + goLineStartSmart: function(cm) {\n\ + var cur = cm.getCursor(), line = cm.getLineHandle(cur.line), order = getOrder(line);\n\ + if (!order || order[0].level == 0) {\n\ + var firstNonWS = Math.max(0, line.text.search(/\\S/));\n\ + cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true);\n\ + } else cm.setCursor(cur.line, lineStart(line), true);\n\ + },\n\ + goLineEnd: function(cm) {\n\ + var line = cm.getCursor().line;\n\ + cm.setCursor(line, lineEnd(cm.getLineHandle(line)), true);\n\ + },\n\ + goLineUp: function(cm) {cm.moveV(-1, \"line\");},\n\ + goLineDown: function(cm) {cm.moveV(1, \"line\");},\n\ + goPageUp: function(cm) {cm.moveV(-1, \"page\");},\n\ + goPageDown: function(cm) {cm.moveV(1, \"page\");},\n\ + goCharLeft: function(cm) {cm.moveH(-1, \"char\");},\n\ + goCharRight: function(cm) {cm.moveH(1, \"char\");},\n\ + goColumnLeft: function(cm) {cm.moveH(-1, \"column\");},\n\ + goColumnRight: function(cm) {cm.moveH(1, \"column\");},\n\ + goWordLeft: function(cm) {cm.moveH(-1, \"word\");},\n\ + goWordRight: function(cm) {cm.moveH(1, \"word\");},\n\ + delCharBefore: function(cm) {cm.deleteH(-1, \"char\");},\n\ + delCharAfter: function(cm) {cm.deleteH(1, \"char\");},\n\ + delWordBefore: function(cm) {cm.deleteH(-1, \"word\");},\n\ + delWordAfter: function(cm) {cm.deleteH(1, \"word\");},\n\ + indentAuto: function(cm) {cm.indentSelection(\"smart\");},\n\ + indentMore: function(cm) {cm.indentSelection(\"add\");},\n\ + indentLess: function(cm) {cm.indentSelection(\"subtract\");},\n\ + insertTab: function(cm) {cm.replaceSelection(\"\\t\", \"end\");},\n\ + defaultTab: function(cm) {\n\ + if (cm.somethingSelected()) cm.indentSelection(\"add\");\n\ + else cm.replaceSelection(\"\\t\", \"end\");\n\ + },\n\ + transposeChars: function(cm) {\n\ + var cur = cm.getCursor(), line = cm.getLine(cur.line);\n\ + if (cur.ch > 0 && cur.ch < line.length - 1)\n\ + cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),\n\ + {line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1});\n\ + },\n\ + newlineAndIndent: function(cm) {\n\ + cm.replaceSelection(\"\\n\", \"end\");\n\ + cm.indentLine(cm.getCursor().line);\n\ + },\n\ + toggleOverwrite: function(cm) {cm.toggleOverwrite();}\n\ + };\n\ +\n\ + // STANDARD KEYMAPS\n\ +\n\ + var keyMap = CodeMirror.keyMap = {};\n\ + keyMap.basic = {\n\ + \"Left\": \"goCharLeft\", \"Right\": \"goCharRight\", \"Up\": \"goLineUp\", \"Down\": \"goLineDown\",\n\ + \"End\": \"goLineEnd\", \"Home\": \"goLineStartSmart\", \"PageUp\": \"goPageUp\", \"PageDown\": \"goPageDown\",\n\ + \"Delete\": \"delCharAfter\", \"Backspace\": \"delCharBefore\", \"Tab\": \"defaultTab\", \"Shift-Tab\": \"indentAuto\",\n\ + \"Enter\": \"newlineAndIndent\", \"Insert\": \"toggleOverwrite\"\n\ + };\n\ + // Note that the save and find-related commands aren't defined by\n\ + // default. Unknown commands are simply ignored.\n\ + keyMap.pcDefault = {\n\ + \"Ctrl-A\": \"selectAll\", \"Ctrl-D\": \"deleteLine\", \"Ctrl-Z\": \"undo\", \"Shift-Ctrl-Z\": \"redo\", \"Ctrl-Y\": \"redo\",\n\ + \"Ctrl-Home\": \"goDocStart\", \"Alt-Up\": \"goDocStart\", \"Ctrl-End\": \"goDocEnd\", \"Ctrl-Down\": \"goDocEnd\",\n\ + \"Ctrl-Left\": \"goWordLeft\", \"Ctrl-Right\": \"goWordRight\", \"Alt-Left\": \"goLineStart\", \"Alt-Right\": \"goLineEnd\",\n\ + \"Ctrl-Backspace\": \"delWordBefore\", \"Ctrl-Delete\": \"delWordAfter\", \"Ctrl-S\": \"save\", \"Ctrl-F\": \"find\",\n\ + \"Ctrl-G\": \"findNext\", \"Shift-Ctrl-G\": \"findPrev\", \"Shift-Ctrl-F\": \"replace\", \"Shift-Ctrl-R\": \"replaceAll\",\n\ + \"Ctrl-[\": \"indentLess\", \"Ctrl-]\": \"indentMore\",\n\ + fallthrough: \"basic\"\n\ + };\n\ + keyMap.macDefault = {\n\ + \"Cmd-A\": \"selectAll\", \"Cmd-D\": \"deleteLine\", \"Cmd-Z\": \"undo\", \"Shift-Cmd-Z\": \"redo\", \"Cmd-Y\": \"redo\",\n\ + \"Cmd-Up\": \"goDocStart\", \"Cmd-End\": \"goDocEnd\", \"Cmd-Down\": \"goDocEnd\", \"Alt-Left\": \"goWordLeft\",\n\ + \"Alt-Right\": \"goWordRight\", \"Cmd-Left\": \"goLineStart\", \"Cmd-Right\": \"goLineEnd\", \"Alt-Backspace\": \"delWordBefore\",\n\ + \"Ctrl-Alt-Backspace\": \"delWordAfter\", \"Alt-Delete\": \"delWordAfter\", \"Cmd-S\": \"save\", \"Cmd-F\": \"find\",\n\ + \"Cmd-G\": \"findNext\", \"Shift-Cmd-G\": \"findPrev\", \"Cmd-Alt-F\": \"replace\", \"Shift-Cmd-Alt-F\": \"replaceAll\",\n\ + \"Cmd-[\": \"indentLess\", \"Cmd-]\": \"indentMore\",\n\ + fallthrough: [\"basic\", \"emacsy\"]\n\ + };\n\ + keyMap[\"default\"] = mac ? keyMap.macDefault : keyMap.pcDefault;\n\ + keyMap.emacsy = {\n\ + \"Ctrl-F\": \"goCharRight\", \"Ctrl-B\": \"goCharLeft\", \"Ctrl-P\": \"goLineUp\", \"Ctrl-N\": \"goLineDown\",\n\ + \"Alt-F\": \"goWordRight\", \"Alt-B\": \"goWordLeft\", \"Ctrl-A\": \"goLineStart\", \"Ctrl-E\": \"goLineEnd\",\n\ + \"Ctrl-V\": \"goPageUp\", \"Shift-Ctrl-V\": \"goPageDown\", \"Ctrl-D\": \"delCharAfter\", \"Ctrl-H\": \"delCharBefore\",\n\ + \"Alt-D\": \"delWordAfter\", \"Alt-Backspace\": \"delWordBefore\", \"Ctrl-K\": \"killLine\", \"Ctrl-T\": \"transposeChars\"\n\ + };\n\ +\n\ + // KEYMAP DISPATCH\n\ +\n\ + function getKeyMap(val) {\n\ + if (typeof val == \"string\") return keyMap[val];\n\ + else return val;\n\ + }\n\ +\n\ + function lookupKey(name, extraMap, map, handle, stop) {\n\ + function lookup(map) {\n\ + map = getKeyMap(map);\n\ + var found = map[name];\n\ + if (found === false) {\n\ + if (stop) stop();\n\ + return true;\n\ + }\n\ + if (found != null && handle(found)) return true;\n\ + if (map.nofallthrough) {\n\ + if (stop) stop();\n\ + return true;\n\ + }\n\ + var fallthrough = map.fallthrough;\n\ + if (fallthrough == null) return false;\n\ + if (Object.prototype.toString.call(fallthrough) != \"[object Array]\")\n\ + return lookup(fallthrough);\n\ + for (var i = 0, e = fallthrough.length; i < e; ++i) {\n\ + if (lookup(fallthrough[i])) return true;\n\ + }\n\ + return false;\n\ + }\n\ + if (extraMap && lookup(extraMap)) return true;\n\ + return lookup(map);\n\ + }\n\ + function isModifierKey(event) {\n\ + var name = keyNames[e_prop(event, \"keyCode\")];\n\ + return name == \"Ctrl\" || name == \"Alt\" || name == \"Shift\" || name == \"Mod\";\n\ + }\n\ +\n\ + // FROMTEXTAREA\n\ +\n\ + CodeMirror.fromTextArea = function(textarea, options) {\n\ + if (!options) options = {};\n\ + options.value = textarea.value;\n\ + if (!options.tabindex && textarea.tabindex)\n\ + options.tabindex = textarea.tabindex;\n\ + // Set autofocus to true if this textarea is focused, or if it has\n\ + // autofocus and no other element is focused.\n\ + if (options.autofocus == null) {\n\ + var hasFocus = document.body;\n\ + // doc.activeElement occasionally throws on IE\n\ + try { hasFocus = document.activeElement; } catch(e) {}\n\ + options.autofocus = hasFocus == textarea ||\n\ + textarea.getAttribute(\"autofocus\") != null && hasFocus == document.body;\n\ + }\n\ +\n\ + function save() {textarea.value = cm.getValue();}\n\ + if (textarea.form) {\n\ + // Deplorable hack to make the submit method do the right thing.\n\ + on(textarea.form, \"submit\", save);\n\ + if (typeof textarea.form.submit == \"function\") {\n\ + var realSubmit = textarea.form.submit;\n\ + textarea.form.submit = function wrappedSubmit() {\n\ + save();\n\ + textarea.form.submit = realSubmit;\n\ + textarea.form.submit();\n\ + textarea.form.submit = wrappedSubmit;\n\ + };\n\ + }\n\ + }\n\ +\n\ + textarea.style.display = \"none\";\n\ + var cm = CodeMirror(function(node) {\n\ + textarea.parentNode.insertBefore(node, textarea.nextSibling);\n\ + }, options);\n\ + cm.save = save;\n\ + cm.getTextArea = function() { return textarea; };\n\ + cm.toTextArea = function() {\n\ + save();\n\ + textarea.parentNode.removeChild(cm.getWrapperElement());\n\ + textarea.style.display = \"\";\n\ + if (textarea.form) {\n\ + off(textarea.form, \"submit\", save);\n\ + if (typeof textarea.form.submit == \"function\")\n\ + textarea.form.submit = realSubmit;\n\ + }\n\ + };\n\ + return cm;\n\ + };\n\ +\n\ + // STRING STREAM\n\ +\n\ + // Fed to the mode parsers, provides helper functions to make\n\ + // parsers more succinct.\n\ +\n\ + // The character stream used by a mode's parser.\n\ + function StringStream(string, tabSize) {\n\ + this.pos = this.start = 0;\n\ + this.string = string;\n\ + this.tabSize = tabSize || 8;\n\ + }\n\ +\n\ + StringStream.prototype = {\n\ + eol: function() {return this.pos >= this.string.length;},\n\ + sol: function() {return this.pos == 0;},\n\ + peek: function() {return this.string.charAt(this.pos) || undefined;},\n\ + next: function() {\n\ + if (this.pos < this.string.length)\n\ + return this.string.charAt(this.pos++);\n\ + },\n\ + eat: function(match) {\n\ + var ch = this.string.charAt(this.pos);\n\ + if (typeof match == \"string\") var ok = ch == match;\n\ + else var ok = ch && (match.test ? match.test(ch) : match(ch));\n\ + if (ok) {++this.pos; return ch;}\n\ + },\n\ + eatWhile: function(match) {\n\ + var start = this.pos;\n\ + while (this.eat(match)){}\n\ + return this.pos > start;\n\ + },\n\ + eatSpace: function() {\n\ + var start = this.pos;\n\ + while (/[\\s\\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;\n\ + return this.pos > start;\n\ + },\n\ + skipToEnd: function() {this.pos = this.string.length;},\n\ + skipTo: function(ch) {\n\ + var found = this.string.indexOf(ch, this.pos);\n\ + if (found > -1) {this.pos = found; return true;}\n\ + },\n\ + backUp: function(n) {this.pos -= n;},\n\ + column: function() {return countColumn(this.string, this.start, this.tabSize);},\n\ + indentation: function() {return countColumn(this.string, null, this.tabSize);},\n\ + match: function(pattern, consume, caseInsensitive) {\n\ + if (typeof pattern == \"string\") {\n\ + var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};\n\ + if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {\n\ + if (consume !== false) this.pos += pattern.length;\n\ + return true;\n\ + }\n\ + } else {\n\ + var match = this.string.slice(this.pos).match(pattern);\n\ + if (match && match.index > 0) return null;\n\ + if (match && consume !== false) this.pos += match[0].length;\n\ + return match;\n\ + }\n\ + },\n\ + current: function(){return this.string.slice(this.start, this.pos);}\n\ + };\n\ + CodeMirror.StringStream = StringStream;\n\ +\n\ + // TEXTMARKERS\n\ +\n\ + function TextMarker(cm, type, style) {\n\ + this.lines = [];\n\ + this.type = type;\n\ + this.cm = cm;\n\ + if (style) this.style = style;\n\ + }\n\ +\n\ + TextMarker.prototype.clear = function() {\n\ + startOperation(this.cm);\n\ + var min = Infinity, max = -Infinity;\n\ + for (var i = 0; i < this.lines.length; ++i) {\n\ + var line = this.lines[i];\n\ + var span = getMarkedSpanFor(line.markedSpans, this, true);\n\ + if (span.from != null || span.to != null) {\n\ + var lineN = lineNo(line);\n\ + min = Math.min(min, lineN); max = Math.max(max, lineN);\n\ + }\n\ + }\n\ + if (min != Infinity) regChange(this.cm, min, max + 1);\n\ + this.lines.length = 0;\n\ + endOperation(this.cm);\n\ + };\n\ +\n\ + TextMarker.prototype.find = function() {\n\ + var from, to;\n\ + for (var i = 0; i < this.lines.length; ++i) {\n\ + var line = this.lines[i];\n\ + var span = getMarkedSpanFor(line.markedSpans, this);\n\ + if (span.from != null || span.to != null) {\n\ + var found = lineNo(line);\n\ + if (span.from != null) from = {line: found, ch: span.from};\n\ + if (span.to != null) to = {line: found, ch: span.to};\n\ + }\n\ + }\n\ + if (this.type == \"bookmark\") return from;\n\ + return from && {from: from, to: to};\n\ + };\n\ +\n\ + // TEXTMARKER SPANS\n\ +\n\ + function getMarkedSpanFor(spans, marker, del) {\n\ + if (spans) for (var i = 0; i < spans.length; ++i) {\n\ + var span = spans[i];\n\ + if (span.marker == marker) {\n\ + if (del) spans.splice(i, 1);\n\ + return span;\n\ + }\n\ + }\n\ + }\n\ +\n\ + function markedSpansBefore(old, startCh, endCh) {\n\ + if (old) for (var i = 0, nw; i < old.length; ++i) {\n\ + var span = old[i], marker = span.marker;\n\ + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);\n\ + if (startsBefore || marker.type == \"bookmark\" && span.from == startCh && span.from != endCh) {\n\ + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);\n\ + (nw || (nw = [])).push({from: span.from,\n\ + to: endsAfter ? null : span.to,\n\ + marker: marker});\n\ + }\n\ + }\n\ + return nw;\n\ + }\n\ +\n\ + function markedSpansAfter(old, endCh) {\n\ + if (old) for (var i = 0, nw; i < old.length; ++i) {\n\ + var span = old[i], marker = span.marker;\n\ + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);\n\ + if (endsAfter || marker.type == \"bookmark\" && span.from == endCh) {\n\ + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);\n\ + (nw || (nw = [])).push({from: startsBefore ? null : span.from - endCh,\n\ + to: span.to == null ? null : span.to - endCh,\n\ + marker: marker});\n\ + }\n\ + }\n\ + return nw;\n\ + }\n\ +\n\ + function updateMarkedSpans(oldFirst, oldLast, startCh, endCh, newText) {\n\ + if (!oldFirst && !oldLast) return newText;\n\ + // Get the spans that 'stick out' on both sides\n\ + var first = markedSpansBefore(oldFirst, startCh);\n\ + var last = markedSpansAfter(oldLast, endCh);\n\ +\n\ + // Next, merge those two ends\n\ + var sameLine = newText.length == 1, offset = lst(newText).length + (sameLine ? startCh : 0);\n\ + if (first) {\n\ + // Fix up .to properties of first\n\ + for (var i = 0; i < first.length; ++i) {\n\ + var span = first[i];\n\ + if (span.to == null) {\n\ + var found = getMarkedSpanFor(last, span.marker);\n\ + if (!found) span.to = startCh;\n\ + else if (sameLine) span.to = found.to == null ? null : found.to + offset;\n\ + }\n\ + }\n\ + }\n\ + if (last) {\n\ + // Fix up .from in last (or move them into first in case of sameLine)\n\ + for (var i = 0; i < last.length; ++i) {\n\ + var span = last[i];\n\ + if (span.to != null) span.to += offset;\n\ + if (span.from == null) {\n\ + var found = getMarkedSpanFor(first, span.marker);\n\ + if (!found) {\n\ + span.from = offset;\n\ + if (sameLine) (first || (first = [])).push(span);\n\ + }\n\ + } else {\n\ + span.from += offset;\n\ + if (sameLine) (first || (first = [])).push(span);\n\ + }\n\ + }\n\ + }\n\ +\n\ + var newMarkers = [newHL(newText[0], first)];\n\ + if (!sameLine) {\n\ + // Fill gap with whole-line-spans\n\ + var gap = newText.length - 2, gapMarkers;\n\ + if (gap > 0 && first)\n\ + for (var i = 0; i < first.length; ++i)\n\ + if (first[i].to == null)\n\ + (gapMarkers || (gapMarkers = [])).push({from: null, to: null, marker: first[i].marker});\n\ + for (var i = 0; i < gap; ++i)\n\ + newMarkers.push(newHL(newText[i+1], gapMarkers));\n\ + newMarkers.push(newHL(lst(newText), last));\n\ + }\n\ + return newMarkers;\n\ + }\n\ +\n\ + // hl stands for history-line, a data structure that can be either a\n\ + // string (line without markers) or a {text, markedSpans} object.\n\ + function hlText(val) { return typeof val == \"string\" ? val : val.text; }\n\ + function hlSpans(val) { return typeof val == \"string\" ? null : val.markedSpans; }\n\ + function newHL(text, spans) { return spans ? {text: text, markedSpans: spans} : text; }\n\ +\n\ + function detachMarkedSpans(line) {\n\ + var spans = line.markedSpans;\n\ + if (!spans) return;\n\ + for (var i = 0; i < spans.length; ++i) {\n\ + var lines = spans[i].marker.lines;\n\ + var ix = indexOf(lines, line);\n\ + lines.splice(ix, 1);\n\ + }\n\ + line.markedSpans = null;\n\ + }\n\ +\n\ + function attachMarkedSpans(line, spans) {\n\ + if (!spans) return;\n\ + for (var i = 0; i < spans.length; ++i)\n\ + var marker = spans[i].marker.lines.push(line);\n\ + line.markedSpans = spans;\n\ + }\n\ +\n\ + // LINE DATA STRUCTURE\n\ +\n\ + // Line objects. These hold state related to a line, including\n\ + // highlighting info (the styles array).\n\ + function Line(text, markedSpans, height) {\n\ + this.text = text;\n\ + this.height = height;\n\ + attachMarkedSpans(this, markedSpans);\n\ + }\n\ +\n\ + Line.prototype = {\n\ + update: function(text, markedSpans, cm) {\n\ + this.text = text;\n\ + this.stateAfter = this.styles = null;\n\ + detachMarkedSpans(this);\n\ + attachMarkedSpans(this, markedSpans);\n\ + signalLater(cm, this, \"change\");\n\ + },\n\ +\n\ + // Run the given mode's parser over a line, update the styles\n\ + // array, which contains alternating fragments of text and CSS\n\ + // classes.\n\ + highlight: function(mode, state, tabSize) {\n\ + var stream = new StringStream(this.text, tabSize), st = this.styles || (this.styles = []);\n\ + var pos = st.length = 0;\n\ + if (this.text == \"\" && mode.blankLine) mode.blankLine(state);\n\ + while (!stream.eol()) {\n\ + var style = mode.token(stream, state), substr = stream.current();\n\ + stream.start = stream.pos;\n\ + if (pos && st[pos-1] == style) {\n\ + st[pos-2] += substr;\n\ + } else if (substr) {\n\ + st[pos++] = substr; st[pos++] = style;\n\ + }\n\ + // Give up when line is ridiculously long\n\ + if (stream.pos > 5000) {\n\ + st[pos++] = this.text.slice(stream.pos); st[pos++] = null;\n\ + break;\n\ + }\n\ + }\n\ + },\n\ +\n\ + // Lightweight form of highlight -- proceed over this line and\n\ + // update state, but don't save a style array.\n\ + process: function(mode, state, tabSize) {\n\ + var stream = new StringStream(this.text, tabSize);\n\ + if (this.text == \"\" && mode.blankLine) mode.blankLine(state);\n\ + while (!stream.eol() && stream.pos <= 5000) {\n\ + mode.token(stream, state);\n\ + stream.start = stream.pos;\n\ + }\n\ + },\n\ +\n\ + // Fetch the parser token for a given character. Useful for hacks\n\ + // that want to inspect the mode state (say, for completion).\n\ + getTokenAt: function(mode, state, tabSize, ch) {\n\ + var txt = this.text, stream = new StringStream(txt, tabSize);\n\ + while (stream.pos < ch && !stream.eol()) {\n\ + stream.start = stream.pos;\n\ + var style = mode.token(stream, state);\n\ + }\n\ + return {start: stream.start,\n\ + end: stream.pos,\n\ + string: stream.current(),\n\ + className: style || null,\n\ + state: state};\n\ + },\n\ +\n\ + indentation: function(tabSize) {return countColumn(this.text, null, tabSize);},\n\ +\n\ + // Produces an HTML fragment for the line, taking selection,\n\ + // marking, and highlighting into account.\n\ + getContent: function(tabSize, wrapAt, compensateForWrapping) {\n\ + var first = true, col = 0, specials = /[\\t\\u0000-\\u0019\\u200b\\u2028\\u2029\\uFEFF]/g;\n\ + var pre = elt(\"pre\");\n\ + function span_(text, style) {\n\ + if (!text) return;\n\ + // Work around a bug where, in some compat modes, IE ignores leading spaces\n\ + if (first && ie && text.charAt(0) == \" \") text = \"\\u00a0\" + text.slice(1);\n\ + first = false;\n\ + if (!specials.test(text)) {\n\ + col += text.length;\n\ + var content = document.createTextNode(text);\n\ + } else {\n\ + var content = document.createDocumentFragment(), pos = 0;\n\ + while (true) {\n\ + specials.lastIndex = pos;\n\ + var m = specials.exec(text);\n\ + var skipped = m ? m.index - pos : text.length - pos;\n\ + if (skipped) {\n\ + content.appendChild(document.createTextNode(text.slice(pos, pos + skipped)));\n\ + col += skipped;\n\ + }\n\ + if (!m) break;\n\ + pos += skipped + 1;\n\ + if (m[0] == \"\\t\") {\n\ + var tabWidth = tabSize - col % tabSize;\n\ + content.appendChild(elt(\"span\", spaceStr(tabWidth), \"cm-tab\"));\n\ + col += tabWidth;\n\ + } else {\n\ + var token = elt(\"span\", \"\\u2022\", \"cm-invalidchar\");\n\ + token.title = \"\\\\u\" + m[0].charCodeAt(0).toString(16);\n\ + content.appendChild(token);\n\ + col += 1;\n\ + }\n\ + }\n\ + }\n\ + if (style != null) return pre.appendChild(elt(\"span\", [content], style));\n\ + else return pre.appendChild(content);\n\ + }\n\ + var span = span_;\n\ + if (wrapAt != null) {\n\ + var outPos = 0;\n\ + span = function(text, style) {\n\ + var l = text.length;\n\ + if (wrapAt >= outPos && wrapAt < outPos + l) {\n\ + var cut = wrapAt - outPos;\n\ + if (wrapAt > outPos) {\n\ + span_(text.slice(0, cut), style);\n\ + // See comment at the definition of spanAffectsWrapping\n\ + if (compensateForWrapping && spanAffectsWrapping.test(text.slice(cut - 1, cut + 1)))\n\ + pre.appendChild(elt(\"wbr\"));\n\ + }\n\ + if (cut + 1 == l) {\n\ + pre.anchor = span_(text.slice(cut), style || \"\");\n\ + wrapAt--;\n\ + } else {\n\ + var end = cut + 1;\n\ + while (isExtendingChar.test(text.charAt(end))) ++end;\n\ + pre.anchor = span_(text.slice(cut, end), style || \"\");\n\ + if (compensateForWrapping && spanAffectsWrapping.test(text.slice(cut, end + 1)))\n\ + pre.appendChild(elt(\"wbr\"));\n\ + span_(text.slice(end), style);\n\ + }\n\ + outPos += l;\n\ + } else {\n\ + outPos += l;\n\ + span_(text, style);\n\ + }\n\ + };\n\ + }\n\ +\n\ + var st = this.styles, allText = this.text, marked = this.markedSpans;\n\ + var len = allText.length;\n\ + function styleToClass(style) {\n\ + if (!style) return null;\n\ + return \"cm-\" + style.replace(/ +/g, \" cm-\");\n\ + }\n\ + if (!allText) {\n\ + span(\"\\u00a0\");\n\ + } else if (!marked || !marked.length) {\n\ + for (var i = 0, ch = 0; ch < len; i+=2) {\n\ + var str = st[i], style = st[i+1], l = str.length;\n\ + if (ch + l > len) str = str.slice(0, len - ch);\n\ + ch += l;\n\ + span(str, styleToClass(style));\n\ + }\n\ + } else {\n\ + marked.sort(function(a, b) { return a.from - b.from; });\n\ + var pos = 0, i = 0, text = \"\", style, sg = 0;\n\ + var nextChange = marked[0].from || 0, marks = [], markpos = 0;\n\ + var advanceMarks = function() {\n\ + var m;\n\ + while (markpos < marked.length &&\n\ + ((m = marked[markpos]).from == pos || m.from == null)) {\n\ + if (m.marker.type == \"range\") marks.push(m);\n\ + ++markpos;\n\ + }\n\ + nextChange = markpos < marked.length ? marked[markpos].from : Infinity;\n\ + for (var i = 0; i < marks.length; ++i) {\n\ + var to = marks[i].to;\n\ + if (to == null) to = Infinity;\n\ + if (to == pos) marks.splice(i--, 1);\n\ + else nextChange = Math.min(to, nextChange);\n\ + }\n\ + };\n\ + var m = 0;\n\ + while (pos < len) {\n\ + if (nextChange == pos) advanceMarks();\n\ + var upto = Math.min(len, nextChange);\n\ + while (true) {\n\ + if (text) {\n\ + var end = pos + text.length;\n\ + var appliedStyle = style;\n\ + for (var j = 0; j < marks.length; ++j) {\n\ + var mark = marks[j];\n\ + appliedStyle = (appliedStyle ? appliedStyle + \" \" : \"\") + mark.marker.style;\n\ + if (mark.marker.endStyle && mark.to === Math.min(end, upto)) appliedStyle += \" \" + mark.marker.endStyle;\n\ + if (mark.marker.startStyle && mark.from === pos) appliedStyle += \" \" + mark.marker.startStyle;\n\ + }\n\ + span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);\n\ + if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}\n\ + pos = end;\n\ + }\n\ + text = st[i++]; style = styleToClass(st[i++]);\n\ + }\n\ + }\n\ + }\n\ + return pre;\n\ + },\n\ +\n\ + cleanUp: function() {\n\ + this.parent = null;\n\ + detachMarkedSpans(this);\n\ + }\n\ + };\n\ +\n\ + // DOCUMENT DATA STRUCTURE\n\ +\n\ + function LeafChunk(lines) {\n\ + this.lines = lines;\n\ + this.parent = null;\n\ + for (var i = 0, e = lines.length, height = 0; i < e; ++i) {\n\ + lines[i].parent = this;\n\ + height += lines[i].height;\n\ + }\n\ + this.height = height;\n\ + }\n\ +\n\ + LeafChunk.prototype = {\n\ + chunkSize: function() { return this.lines.length; },\n\ + remove: function(at, n, cm) {\n\ + for (var i = at, e = at + n; i < e; ++i) {\n\ + var line = this.lines[i];\n\ + this.height -= line.height;\n\ + line.cleanUp();\n\ + signalLater(cm, line, \"delete\");\n\ + }\n\ + this.lines.splice(at, n);\n\ + },\n\ + collapse: function(lines) {\n\ + lines.splice.apply(lines, [lines.length, 0].concat(this.lines));\n\ + },\n\ + insertHeight: function(at, lines, height) {\n\ + this.height += height;\n\ + this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));\n\ + for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;\n\ + },\n\ + iterN: function(at, n, op) {\n\ + for (var e = at + n; at < e; ++at)\n\ + if (op(this.lines[at])) return true;\n\ + }\n\ + };\n\ +\n\ + function BranchChunk(children) {\n\ + this.children = children;\n\ + var size = 0, height = 0;\n\ + for (var i = 0, e = children.length; i < e; ++i) {\n\ + var ch = children[i];\n\ + size += ch.chunkSize(); height += ch.height;\n\ + ch.parent = this;\n\ + }\n\ + this.size = size;\n\ + this.height = height;\n\ + this.parent = null;\n\ + }\n\ +\n\ + BranchChunk.prototype = {\n\ + chunkSize: function() { return this.size; },\n\ + remove: function(at, n, callbacks) {\n\ + this.size -= n;\n\ + for (var i = 0; i < this.children.length; ++i) {\n\ + var child = this.children[i], sz = child.chunkSize();\n\ + if (at < sz) {\n\ + var rm = Math.min(n, sz - at), oldHeight = child.height;\n\ + child.remove(at, rm, callbacks);\n\ + this.height -= oldHeight - child.height;\n\ + if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }\n\ + if ((n -= rm) == 0) break;\n\ + at = 0;\n\ + } else at -= sz;\n\ + }\n\ + if (this.size - n < 25) {\n\ + var lines = [];\n\ + this.collapse(lines);\n\ + this.children = [new LeafChunk(lines)];\n\ + this.children[0].parent = this;\n\ + }\n\ + },\n\ + collapse: function(lines) {\n\ + for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);\n\ + },\n\ + insert: function(at, lines) {\n\ + var height = 0;\n\ + for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;\n\ + this.insertHeight(at, lines, height);\n\ + },\n\ + insertHeight: function(at, lines, height) {\n\ + this.size += lines.length;\n\ + this.height += height;\n\ + for (var i = 0, e = this.children.length; i < e; ++i) {\n\ + var child = this.children[i], sz = child.chunkSize();\n\ + if (at <= sz) {\n\ + child.insertHeight(at, lines, height);\n\ + if (child.lines && child.lines.length > 50) {\n\ + while (child.lines.length > 50) {\n\ + var spilled = child.lines.splice(child.lines.length - 25, 25);\n\ + var newleaf = new LeafChunk(spilled);\n\ + child.height -= newleaf.height;\n\ + this.children.splice(i + 1, 0, newleaf);\n\ + newleaf.parent = this;\n\ + }\n\ + this.maybeSpill();\n\ + }\n\ + break;\n\ + }\n\ + at -= sz;\n\ + }\n\ + },\n\ + maybeSpill: function() {\n\ + if (this.children.length <= 10) return;\n\ + var me = this;\n\ + do {\n\ + var spilled = me.children.splice(me.children.length - 5, 5);\n\ + var sibling = new BranchChunk(spilled);\n\ + if (!me.parent) { // Become the parent node\n\ + var copy = new BranchChunk(me.children);\n\ + copy.parent = me;\n\ + me.children = [copy, sibling];\n\ + me = copy;\n\ + } else {\n\ + me.size -= sibling.size;\n\ + me.height -= sibling.height;\n\ + var myIndex = indexOf(me.parent.children, me);\n\ + me.parent.children.splice(myIndex + 1, 0, sibling);\n\ + }\n\ + sibling.parent = me.parent;\n\ + } while (me.children.length > 10);\n\ + me.parent.maybeSpill();\n\ + },\n\ + iter: function(from, to, op) { this.iterN(from, to - from, op); },\n\ + iterN: function(at, n, op) {\n\ + for (var i = 0, e = this.children.length; i < e; ++i) {\n\ + var child = this.children[i], sz = child.chunkSize();\n\ + if (at < sz) {\n\ + var used = Math.min(n, sz - at);\n\ + if (child.iterN(at, used, op)) return true;\n\ + if ((n -= used) == 0) break;\n\ + at = 0;\n\ + } else at -= sz;\n\ + }\n\ + }\n\ + };\n\ +\n\ + // LINE UTILITIES\n\ +\n\ + function lineDoc(line) {\n\ + for (var d = line.parent; d && d.parent; d = d.parent) {}\n\ + return d;\n\ + }\n\ +\n\ + function getLine(chunk, n) {\n\ + while (!chunk.lines) {\n\ + for (var i = 0;; ++i) {\n\ + var child = chunk.children[i], sz = child.chunkSize();\n\ + if (n < sz) { chunk = child; break; }\n\ + n -= sz;\n\ + }\n\ + }\n\ + return chunk.lines[n];\n\ + }\n\ +\n\ + function updateLineHeight(line, height) {\n\ + var diff = height - line.height;\n\ + for (var n = line; n; n = n.parent) n.height += diff;\n\ + }\n\ +\n\ + function lineNo(line) {\n\ + if (line.parent == null) return null;\n\ + var cur = line.parent, no = indexOf(cur.lines, line);\n\ + for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {\n\ + for (var i = 0, e = chunk.children.length; ; ++i) {\n\ + if (chunk.children[i] == cur) break;\n\ + no += chunk.children[i].chunkSize();\n\ + }\n\ + }\n\ + return no;\n\ + }\n\ +\n\ + function lineAtHeight(chunk, h) {\n\ + var n = 0;\n\ + outer: do {\n\ + for (var i = 0, e = chunk.children.length; i < e; ++i) {\n\ + var child = chunk.children[i], ch = child.height;\n\ + if (h < ch) { chunk = child; continue outer; }\n\ + h -= ch;\n\ + n += child.chunkSize();\n\ + }\n\ + return n;\n\ + } while (!chunk.lines);\n\ + for (var i = 0, e = chunk.lines.length; i < e; ++i) {\n\ + var line = chunk.lines[i], lh = line.height;\n\ + if (h < lh) break;\n\ + h -= lh;\n\ + }\n\ + return n + i;\n\ + }\n\ +\n\ + function heightAtLine(chunk, n) {\n\ + var h = 0;\n\ + outer: do {\n\ + for (var i = 0, e = chunk.children.length; i < e; ++i) {\n\ + var child = chunk.children[i], sz = child.chunkSize();\n\ + if (n < sz) { chunk = child; continue outer; }\n\ + n -= sz;\n\ + h += child.height;\n\ + }\n\ + return h;\n\ + } while (!chunk.lines);\n\ + for (var i = 0; i < n; ++i) h += chunk.lines[i].height;\n\ + return h;\n\ + }\n\ +\n\ + function getOrder(line) {\n\ + var order = line.order;\n\ + if (order == null) order = line.order = bidiOrdering(line.text);\n\ + return order;\n\ + }\n\ +\n\ + function lineContent(cm, line, anchorAt) {\n\ + if (!line.styles) {\n\ + var doc = lineDoc(line);\n\ + line.highlight(doc.mode, line.stateAfter = getStateBefore(doc, lineNo(line)), cm.options.tabSize);\n\ + }\n\ + return line.getContent(cm.options.tabSize, anchorAt, cm.options.lineWrapping);\n\ + }\n\ +\n\ + // HISTORY\n\ +\n\ + // The history object 'chunks' changes that are made close together\n\ + // and at almost the same time into bigger undoable units.\n\ + function History() {\n\ + this.time = 0;\n\ + this.done = []; this.undone = [];\n\ + this.compound = 0;\n\ + this.closed = false;\n\ + }\n\ + History.prototype = {\n\ + addChange: function(start, added, old) {\n\ + this.undone.length = 0;\n\ + var time = +new Date, cur = lst(this.done), last = cur && lst(cur);\n\ + var dtime = time - this.time;\n\ +\n\ + if (this.compound && cur && !this.closed) {\n\ + cur.push({start: start, added: added, old: old});\n\ + } else if (dtime > 400 || !last || this.closed ||\n\ + last.start > start + old.length || last.start + last.added < start) {\n\ + this.done.push([{start: start, added: added, old: old}]);\n\ + this.closed = false;\n\ + } else {\n\ + var startBefore = Math.max(0, last.start - start),\n\ + endAfter = Math.max(0, (start + old.length) - (last.start + last.added));\n\ + for (var i = startBefore; i > 0; --i) last.old.unshift(old[i - 1]);\n\ + for (var i = endAfter; i > 0; --i) last.old.push(old[old.length - i]);\n\ + if (startBefore) last.start = start;\n\ + last.added += added - (old.length - startBefore - endAfter);\n\ + }\n\ + this.time = time;\n\ + },\n\ + startCompound: function() {\n\ + if (!this.compound++) this.closed = true;\n\ + },\n\ + endCompound: function() {\n\ + if (!--this.compound) this.closed = true;\n\ + }\n\ + };\n\ +\n\ + // EVENT OPERATORS\n\ +\n\ + function stopMethod() {e_stop(this);}\n\ + // Ensure an event has a stop method.\n\ + function addStop(event) {\n\ + if (!event.stop) event.stop = stopMethod;\n\ + return event;\n\ + }\n\ +\n\ + function e_preventDefault(e) {\n\ + if (e.preventDefault) e.preventDefault();\n\ + else e.returnValue = false;\n\ + }\n\ + function e_stopPropagation(e) {\n\ + if (e.stopPropagation) e.stopPropagation();\n\ + else e.cancelBubble = true;\n\ + }\n\ + function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}\n\ + CodeMirror.e_stop = e_stop;\n\ + CodeMirror.e_preventDefault = e_preventDefault;\n\ + CodeMirror.e_stopPropagation = e_stopPropagation;\n\ +\n\ + function e_target(e) {return e.target || e.srcElement;}\n\ + function e_button(e) {\n\ + var b = e.which;\n\ + if (b == null) {\n\ + if (e.button & 1) b = 1;\n\ + else if (e.button & 2) b = 3;\n\ + else if (e.button & 4) b = 2;\n\ + }\n\ + if (mac && e.ctrlKey && b == 1) b = 3;\n\ + return b;\n\ + }\n\ +\n\ + // Allow 3rd-party code to override event properties by adding an override\n\ + // object to an event object.\n\ + function e_prop(e, prop) {\n\ + var overridden = e.override && e.override.hasOwnProperty(prop);\n\ + return overridden ? e.override[prop] : e[prop];\n\ + }\n\ +\n\ + // EVENT HANDLING\n\ +\n\ + function on(emitter, type, f) {\n\ + if (emitter.addEventListener)\n\ + emitter.addEventListener(type, f, false);\n\ + else if (emitter.attachEvent)\n\ + emitter.attachEvent(\"on\" + type, f);\n\ + else {\n\ + var map = emitter._handlers || (emitter._handlers = {});\n\ + var arr = map[type] || (map[type] = []);\n\ + arr.push(f);\n\ + }\n\ + }\n\ +\n\ + function off(emitter, type, f) {\n\ + if (emitter.removeEventListener)\n\ + emitter.removeEventListener(type, f, false);\n\ + else if (emitter.detachEvent)\n\ + emitter.detachEvent(\"on\" + type, f);\n\ + else {\n\ + var arr = emitter._handlers && emitter._handlers[type];\n\ + if (!arr) return;\n\ + for (var i = 0; i < arr.length; ++i)\n\ + if (arr[i] == f) { arr.splice(i, 1); break; }\n\ + }\n\ + }\n\ +\n\ + function signal(emitter, type /*, values...*/) {\n\ + var arr = emitter._handlers && emitter._handlers[type];\n\ + if (!arr) return;\n\ + var args = Array.prototype.slice.call(arguments, 2);\n\ + for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);\n\ + }\n\ +\n\ + function signalLater(cm, emitter, type /*, values...*/) {\n\ + var arr = emitter._handlers && emitter._handlers[type];\n\ + if (!arr) return;\n\ + var args = Array.prototype.slice.call(arguments, 3), flist = cm.curOp && cm.curOp.delayedCallbacks;\n\ + function bnd(f) {return function(){f.apply(null, args);};};\n\ + for (var i = 0; i < arr.length; ++i)\n\ + if (flist) flist.push(bnd(arr[i]));\n\ + else arr[i].apply(null, args);\n\ + }\n\ +\n\ + function hasHandler(emitter, type) {\n\ + var arr = emitter._handlers && emitter._handlers[type];\n\ + return arr && arr.length > 0;\n\ + }\n\ +\n\ + CodeMirror.on = on; CodeMirror.off = off; CodeMirror.signal = signal;\n\ +\n\ + // MISC UTILITIES\n\ +\n\ + // Number of pixels added to scroller and sizer to hide scrollbar\n\ + var scrollerCutOff = 30;\n\ +\n\ + // Returned or thrown by various protocols to signal 'I'm not\n\ + // handling this'.\n\ + var Pass = CodeMirror.Pass = {toString: function(){return \"CodeMirror.Pass\";}};\n\ +\n\ + function Delayed() {this.id = null;}\n\ + Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};\n\ +\n\ + // Counts the column offset in a string, taking tabs into account.\n\ + // Used mostly to find indentation.\n\ + function countColumn(string, end, tabSize) {\n\ + if (end == null) {\n\ + end = string.search(/[^\\s\\u00a0]/);\n\ + if (end == -1) end = string.length;\n\ + }\n\ + for (var i = 0, n = 0; i < end; ++i) {\n\ + if (string.charAt(i) == \"\\t\") n += tabSize - (n % tabSize);\n\ + else ++n;\n\ + }\n\ + return n;\n\ + }\n\ +\n\ + var spaceStrs = [\"\"];\n\ + function spaceStr(n) {\n\ + while (spaceStrs.length <= n)\n\ + spaceStrs.push(lst(spaceStrs) + \" \");\n\ + return spaceStrs[n];\n\ + }\n\ +\n\ + function lst(arr) { return arr[arr.length-1]; }\n\ +\n\ + function selectInput(node) {\n\ + if (ios) { // Mobile Safari apparently has a bug where select() is broken.\n\ + node.selectionStart = 0;\n\ + node.selectionEnd = node.value.length;\n\ + } else node.select();\n\ + }\n\ +\n\ + // Used to position the cursor after an undo/redo by finding the\n\ + // last edited character.\n\ + function editEnd(from, to) {\n\ + if (!to) return 0;\n\ + if (!from) return to.length;\n\ + for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j)\n\ + if (from.charAt(i) != to.charAt(j)) break;\n\ + return j + 1;\n\ + }\n\ +\n\ + function indexOf(collection, elt) {\n\ + if (collection.indexOf) return collection.indexOf(elt);\n\ + for (var i = 0, e = collection.length; i < e; ++i)\n\ + if (collection[i] == elt) return i;\n\ + return -1;\n\ + }\n\ +\n\ + function bind(f) {\n\ + var args = Array.prototype.slice.call(arguments, 1);\n\ + return function(){return f.apply(null, args);};\n\ + }\n\ +\n\ + function isWordChar(ch) {\n\ + return /\\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase();\n\ + }\n\ +\n\ + function isEmpty(obj) {\n\ + var c = 0;\n\ + for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) ++c;\n\ + return !c;\n\ + }\n\ +\n\ + var isExtendingChar = /[\\u0300-\\u036F\\u0483-\\u0487\\u0488-\\u0489\\u0591-\\u05BD\\u05BF\\u05C1-\\u05C2\\u05C4-\\u05C5\\u05C7\\u0610-\\u061A\\u064B-\\u065F\\u0670\\u06D6-\\u06DC\\u06DF-\\u06E4\\u06E7-\\u06E8\\u06EA-\\u06ED\\uA66F\\uA670-\\uA672\\uA674-\\uA67D\\uA69F]/;\n\ +\n\ + // DOM UTILITIES\n\ +\n\ + function elt(tag, content, className, style) {\n\ + var e = document.createElement(tag);\n\ + if (className) e.className = className;\n\ + if (style) e.style.cssText = style;\n\ + if (typeof content == \"string\") setTextContent(e, content);\n\ + else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);\n\ + return e;\n\ + }\n\ +\n\ + function removeChildren(e) {\n\ + e.innerHTML = \"\";\n\ + return e;\n\ + }\n\ +\n\ + function removeChildrenAndAdd(parent, e) {\n\ + return removeChildren(parent).appendChild(e);\n\ + }\n\ +\n\ + function setTextContent(e, str) {\n\ + if (ie_lt9) {\n\ + e.innerHTML = \"\";\n\ + e.appendChild(document.createTextNode(str));\n\ + } else e.textContent = str;\n\ + }\n\ +\n\ + // FEATURE DETECTION\n\ +\n\ + // Detect drag-and-drop\n\ + var dragAndDrop = function() {\n\ + // There is *some* kind of drag-and-drop support in IE6-8, but I\n\ + // couldn't get it to work yet.\n\ + if (ie_lt9) return false;\n\ + var div = elt('div');\n\ + return \"draggable\" in div || \"dragDrop\" in div;\n\ + }();\n\ +\n\ + // Feature-detect whether newlines in textareas are converted to \\r\\n\n\ + var lineSep = function () {\n\ + var te = elt(\"textarea\");\n\ + te.value = \"foo\\nbar\";\n\ + if (te.value.indexOf(\"\\r\") > -1) return \"\\r\\n\";\n\ + return \"\\n\";\n\ + }();\n\ +\n\ + // For a reason I have yet to figure out, some browsers disallow\n\ + // word wrapping between certain characters *only* if a new inline\n\ + // element is started between them. This makes it hard to reliably\n\ + // measure the position of things, since that requires inserting an\n\ + // extra span. This terribly fragile set of regexps matches the\n\ + // character combinations that suffer from this phenomenon on the\n\ + // various browsers.\n\ + var spanAffectsWrapping = /^$/; // Won't match any two-character string\n\ + if (gecko) spanAffectsWrapping = /$'/;\n\ + else if (safari) spanAffectsWrapping = /\\-[^ \\-?]|\\?[^ !'\\\"\\),.\\-\\/:;\\?\\]\\}]/;\n\ + else if (chrome) spanAffectsWrapping = /\\-[^ \\-\\.?]|\\?[^ \\-\\.?\\]\\}:;!'\\\"\\),\\/]|[\\.!\\\"#&%\\)*+,:;=>\\]|\\}~][\\(\\{\\[<]|\\$'/;\n\ +\n\ + var knownScrollbarWidth;\n\ + function scrollbarWidth(measure) {\n\ + if (knownScrollbarWidth != null) return knownScrollbarWidth;\n\ + var test = elt(\"div\", null, null, \"width: 50px; height: 50px; overflow-x: scroll\");\n\ + removeChildrenAndAdd(measure, test);\n\ + if (test.offsetWidth)\n\ + knownScrollbarWidth = test.offsetHeight - test.clientHeight;\n\ + return knownScrollbarWidth || 0;\n\ + }\n\ +\n\ + // See if \"\".split is the broken IE version, if so, provide an\n\ + // alternative way to split lines.\n\ + var splitLines = \"\\n\\nb\".split(/\\n/).length != 3 ? function(string) {\n\ + var pos = 0, result = [], l = string.length;\n\ + while (pos <= l) {\n\ + var nl = string.indexOf(\"\\n\", pos);\n\ + if (nl == -1) nl = string.length;\n\ + var line = string.slice(pos, string.charAt(nl - 1) == \"\\r\" ? nl - 1 : nl);\n\ + var rt = line.indexOf(\"\\r\");\n\ + if (rt != -1) {\n\ + result.push(line.slice(0, rt));\n\ + pos += rt + 1;\n\ + } else {\n\ + result.push(line);\n\ + pos = nl + 1;\n\ + }\n\ + }\n\ + return result;\n\ + } : function(string){return string.split(/\\r\\n?|\\n/);};\n\ + CodeMirror.splitLines = splitLines;\n\ +\n\ + var hasSelection = window.getSelection ? function(te) {\n\ + try { return te.selectionStart != te.selectionEnd; }\n\ + catch(e) { return false; }\n\ + } : function(te) {\n\ + try {var range = te.ownerDocument.selection.createRange();}\n\ + catch(e) {}\n\ + if (!range || range.parentElement() != te) return false;\n\ + return range.compareEndPoints(\"StartToEnd\", range) != 0;\n\ + };\n\ +\n\ + var hasCopyEvent = (function() {\n\ + var e = elt(\"div\");\n\ + if (\"oncopy\" in e) return true;\n\ + e.setAttribute(\"oncopy\", \"return;\");\n\ + return typeof e.oncopy == 'function';\n\ + })();\n\ +\n\ + // KEY NAMING\n\ +\n\ + var keyNames = {3: \"Enter\", 8: \"Backspace\", 9: \"Tab\", 13: \"Enter\", 16: \"Shift\", 17: \"Ctrl\", 18: \"Alt\",\n\ + 19: \"Pause\", 20: \"CapsLock\", 27: \"Esc\", 32: \"Space\", 33: \"PageUp\", 34: \"PageDown\", 35: \"End\",\n\ + 36: \"Home\", 37: \"Left\", 38: \"Up\", 39: \"Right\", 40: \"Down\", 44: \"PrintScrn\", 45: \"Insert\",\n\ + 46: \"Delete\", 59: \";\", 91: \"Mod\", 92: \"Mod\", 93: \"Mod\", 109: \"-\", 107: \"=\", 127: \"Delete\",\n\ + 186: \";\", 187: \"=\", 188: \",\", 189: \"-\", 190: \".\", 191: \"/\", 192: \"`\", 219: \"[\", 220: \"\\\\\",\n\ + 221: \"]\", 222: \"'\", 63276: \"PageUp\", 63277: \"PageDown\", 63275: \"End\", 63273: \"Home\",\n\ + 63234: \"Left\", 63232: \"Up\", 63235: \"Right\", 63233: \"Down\", 63302: \"Insert\", 63272: \"Delete\"};\n\ + CodeMirror.keyNames = keyNames;\n\ + (function() {\n\ + // Number keys\n\ + for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);\n\ + // Alphabetic keys\n\ + for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);\n\ + // Function keys\n\ + for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = \"F\" + i;\n\ + })();\n\ +\n\ + // BIDI HELPERS\n\ +\n\ + function iterateBidiSections(order, from, to, f) {\n\ + if (!order) return f(from, to, \"ltr\");\n\ + for (var i = 0; i < order.length; ++i) {\n\ + var part = order[i];\n\ + if (part.from < to && part.to > from)\n\ + f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? \"rtl\" : \"ltr\");\n\ + }\n\ + }\n\ +\n\ + function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }\n\ + function bidiRight(part) { return part.level % 2 ? part.from : part.to; }\n\ +\n\ + function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }\n\ + function lineRight(line) {\n\ + var order = getOrder(line);\n\ + if (!order) return line.text.length;\n\ + return bidiRight(lst(order));\n\ + }\n\ + function lineStart(line) {\n\ + var order = getOrder(line);\n\ + if (!order) return 0;\n\ + return order[0].level % 2 ? lineRight(line) : lineLeft(line);\n\ + }\n\ + function lineEnd(line) {\n\ + var order = getOrder(line);\n\ + if (!order) return line.text.length;\n\ + return order[0].level % 2 ? lineLeft(line) : lineRight(line);\n\ + }\n\ +\n\ + // This is somewhat involved. It is needed in order to move\n\ + // 'visually' through bi-directional text -- i.e., pressing left\n\ + // should make the cursor go left, even when in RTL text. The\n\ + // tricky part is the 'jumps', where RTL and LTR text touch each\n\ + // other. This often requires the cursor offset to move more than\n\ + // one unit, in order to visually move one unit.\n\ + function moveVisually(line, start, dir, byUnit) {\n\ + var bidi = getOrder(line);\n\ + if (!bidi) return moveLogically(line, start, dir, byUnit);\n\ + var moveOneUnit = byUnit ? function(pos, dir) {\n\ + do pos += dir;\n\ + while (pos > 0 && isExtendingChar.test(line.text.charAt(pos)));\n\ + return pos;\n\ + } : function(pos, dir) { return pos + dir; };\n\ + var linedir = bidi[0].level;\n\ + for (var i = 0; i < bidi.length; ++i) {\n\ + var part = bidi[i], sticky = part.level % 2 == linedir;\n\ + if ((part.from < start && part.to > start) ||\n\ + (sticky && (part.from == start || part.to == start))) break;\n\ + }\n\ + var target = moveOneUnit(start, part.level % 2 ? -dir : dir);\n\ +\n\ + while (target != null) {\n\ + if (part.level % 2 == linedir) {\n\ + if (target < part.from || target > part.to) {\n\ + part = bidi[i += dir];\n\ + target = part && (dir > 0 == part.level % 2 ? moveOneUnit(part.to, -1) : moveOneUnit(part.from, 1));\n\ + } else break;\n\ + } else {\n\ + if (target == bidiLeft(part)) {\n\ + part = bidi[--i];\n\ + target = part && bidiRight(part);\n\ + } else if (target == bidiRight(part)) {\n\ + part = bidi[++i];\n\ + target = part && bidiLeft(part);\n\ + } else break;\n\ + }\n\ + }\n\ +\n\ + return target < 0 || target > line.text.length ? null : target;\n\ + }\n\ +\n\ + function moveLogically(line, start, dir, byUnit) {\n\ + var target = start + dir;\n\ + if (byUnit) while (target > 0 && isExtendingChar.test(line.text.charAt(target))) target += dir;\n\ + return target < 0 || target > line.text.length ? null : target;\n\ + }\n\ +\n\ + // Bidirectional ordering algorithm\n\ + // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm\n\ + // that this (partially) implements.\n\ +\n\ + // One-char codes used for character types:\n\ + // L (L): Left-to-Right\n\ + // R (R): Right-to-Left\n\ + // r (AL): Right-to-Left Arabic\n\ + // 1 (EN): European Number\n\ + // + (ES): European Number Separator\n\ + // % (ET): European Number Terminator\n\ + // n (AN): Arabic Number\n\ + // , (CS): Common Number Separator\n\ + // m (NSM): Non-Spacing Mark\n\ + // b (BN): Boundary Neutral\n\ + // s (B): Paragraph Separator\n\ + // t (S): Segment Separator\n\ + // w (WS): Whitespace\n\ + // N (ON): Other Neutrals\n\ +\n\ + // Returns null if characters are ordered as they appear\n\ + // (left-to-right), or an array of sections ({from, to, level}\n\ + // objects) in the order in which they occur visually.\n\ + var bidiOrdering = (function() {\n\ + // Character types for codepoints 0 to 0xff\n\ + var lowTypes = \"bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLL\";\n\ + // Character types for codepoints 0x600 to 0x6ff\n\ + var arabicTypes = \"rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmmrrrrrrrrrrrrrrrrrr\";\n\ + function charType(code) {\n\ + var type = \"L\";\n\ + if (code <= 0xff) return lowTypes.charAt(code);\n\ + else if (0x590 <= code && code <= 0x5f4) return \"R\";\n\ + else if (0x600 <= code && code <= 0x6ff) return arabicTypes.charAt(code - 0x600);\n\ + else if (0x700 <= code && code <= 0x8ac) return \"r\";\n\ + else return \"L\";\n\ + }\n\ +\n\ + var bidiRE = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\n\ + var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;\n\ +\n\ + return function charOrdering(str) {\n\ + if (!bidiRE.test(str)) return false;\n\ + var len = str.length, types = new Array(len), startType = null;\n\ + for (var i = 0; i < len; ++i) {\n\ + var type = types[i] = charType(str.charCodeAt(i));\n\ + if (startType == null) {\n\ + if (type == \"L\") startType = \"L\";\n\ + else if (type == \"R\" || type == \"r\") startType = \"R\";\n\ + }\n\ + }\n\ + if (startType == null) startType = \"L\";\n\ +\n\ + // W1. Examine each non-spacing mark (NSM) in the level run, and\n\ + // change the type of the NSM to the type of the previous\n\ + // character. If the NSM is at the start of the level run, it will\n\ + // get the type of sor.\n\ + for (var i = 0, prev = startType; i < len; ++i) {\n\ + var type = types[i];\n\ + if (type == \"m\") types[i] = prev;\n\ + else prev = type;\n\ + }\n\ +\n\ + // W2. Search backwards from each instance of a European number\n\ + // until the first strong type (R, L, AL, or sor) is found. If an\n\ + // AL is found, change the type of the European number to Arabic\n\ + // number.\n\ + // W3. Change all ALs to R.\n\ + for (var i = 0, cur = startType; i < len; ++i) {\n\ + var type = types[i];\n\ + if (type == \"1\" && cur == \"r\") types[i] = \"n\";\n\ + else if (isStrong.test(type)) { cur = type; if (type == \"r\") types[i] = \"R\"; }\n\ + }\n\ +\n\ + // W4. A single European separator between two European numbers\n\ + // changes to a European number. A single common separator between\n\ + // two numbers of the same type changes to that type.\n\ + for (var i = 1, prev = types[0]; i < len - 1; ++i) {\n\ + var type = types[i];\n\ + if (type == \"+\" && prev == \"1\" && types[i+1] == \"1\") types[i] = \"1\";\n\ + else if (type == \",\" && prev == types[i+1] &&\n\ + (prev == \"1\" || prev == \"n\")) types[i] = prev;\n\ + prev = type;\n\ + }\n\ +\n\ + // W5. A sequence of European terminators adjacent to European\n\ + // numbers changes to all European numbers.\n\ + // W6. Otherwise, separators and terminators change to Other\n\ + // Neutral.\n\ + for (var i = 0; i < len; ++i) {\n\ + var type = types[i];\n\ + if (type == \",\") types[i] = \"N\";\n\ + else if (type == \"%\") {\n\ + for (var end = i + 1; end < len && types[end] == \"%\"; ++end) {}\n\ + var replace = (i && types[i-1] == \"!\") || (end < len - 1 && types[end] == \"1\") ? \"1\" : \"N\";\n\ + for (var j = i; j < end; ++j) types[j] = replace;\n\ + i = end - 1;\n\ + }\n\ + }\n\ +\n\ + // W7. Search backwards from each instance of a European number\n\ + // until the first strong type (R, L, or sor) is found. If an L is\n\ + // found, then change the type of the European number to L.\n\ + for (var i = 0, cur = startType; i < len; ++i) {\n\ + var type = types[i];\n\ + if (cur == \"L\" && type == \"1\") types[i] = \"L\";\n\ + else if (isStrong.test(type)) cur = type;\n\ + }\n\ +\n\ + // N1. A sequence of neutrals takes the direction of the\n\ + // surrounding strong text if the text on both sides has the same\n\ + // direction. European and Arabic numbers act as if they were R in\n\ + // terms of their influence on neutrals. Start-of-level-run (sor)\n\ + // and end-of-level-run (eor) are used at level run boundaries.\n\ + // N2. Any remaining neutrals take the embedding direction.\n\ + for (var i = 0; i < len; ++i) {\n\ + if (isNeutral.test(types[i])) {\n\ + for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}\n\ + var before = (i ? types[i-1] : startType) == \"L\";\n\ + var after = (end < len - 1 ? types[end] : startType) == \"L\";\n\ + var replace = before || after ? \"L\" : \"R\";\n\ + for (var j = i; j < end; ++j) types[j] = replace;\n\ + i = end - 1;\n\ + }\n\ + }\n\ +\n\ + // Here we depart from the documented algorithm, in order to avoid\n\ + // building up an actual levels array. Since there are only three\n\ + // levels (0, 1, 2) in an implementation that doesn't take\n\ + // explicit embedding into account, we can build up the order on\n\ + // the fly, without following the level-based algorithm.\n\ + var order = [], m;\n\ + for (var i = 0; i < len;) {\n\ + if (countsAsLeft.test(types[i])) {\n\ + var start = i;\n\ + for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}\n\ + order.push({from: start, to: i, level: 0});\n\ + } else {\n\ + var pos = i, at = order.length;\n\ + for (++i; i < len && types[i] != \"L\"; ++i) {}\n\ + for (var j = pos; j < i;) {\n\ + if (countsAsNum.test(types[j])) {\n\ + if (pos < j) order.splice(at, 0, {from: pos, to: j, level: 1});\n\ + var nstart = j;\n\ + for (++j; j < i && countsAsNum.test(types[j]); ++j) {}\n\ + order.splice(at, 0, {from: nstart, to: j, level: 2});\n\ + pos = j;\n\ + } else ++j;\n\ + }\n\ + if (pos < i) order.splice(at, 0, {from: pos, to: i, level: 1});\n\ + }\n\ + }\n\ + if (order[0].level == 1 && (m = str.match(/^\\s+/))) {\n\ + order[0].from = m[0].length;\n\ + order.unshift({from: 0, to: m[0].length, level: 0});\n\ + }\n\ + if (lst(order).level == 1 && (m = str.match(/\\s+$/))) {\n\ + lst(order).to -= m[0].length;\n\ + order.push({from: len - m[0].length, to: len, level: 0});\n\ + }\n\ + if (order[0].level != lst(order).level)\n\ + order.push({from: len, to: len, level: order[0].level});\n\ +\n\ + return order;\n\ + };\n\ + })();\n\ +\n\ + // THE END\n\ +\n\ + CodeMirror.version = \"3.0 B\";\n\ +\n\ + return CodeMirror;\n\ +})();";