// CodeMirror version 2.2
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//
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// All functions that need access to the editor's state live inside
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// the CodeMirror function. Below that, at the bottom of the file,
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// some utilities are defined.
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// CodeMirror is the only global var we claim
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var CodeMirror = (function() {
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// This is the function that produces an editor instance. It's
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// closure is used to store the editor state.
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function CodeMirror(place, givenOptions) {
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// Determine effective options based on given values and defaults.
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var options = {}, defaults = CodeMirror.defaults;
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for (var opt in defaults)
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if (defaults.hasOwnProperty(opt))
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options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt];
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var targetDocument = options["document"];
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// The element in which the editor lives.
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var wrapper = targetDocument.createElement("div");
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wrapper.className = "CodeMirror" + (options.lineWrapping ? " CodeMirror-wrap" : "");
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// This mess creates the base DOM structure for the editor.
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wrapper.innerHTML =
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'<div style="overflow: hidden; position: relative; width: 3px; height: 0px;">' + // Wraps and hides input textarea
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'<textarea style="position: absolute; padding: 0; width: 1px;" wrap="off" ' +
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'autocorrect="off" autocapitalize="off"></textarea></div>' +
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'<div class="CodeMirror-scroll" tabindex="-1">' +
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'<div style="position: relative">' + // Set to the height of the text, causes scrolling
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'<div style="position: relative">' + // Moved around its parent to cover visible view
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'<div class="CodeMirror-gutter"><div class="CodeMirror-gutter-text"></div></div>' +
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// Provides positioning relative to (visible) text origin
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'<div class="CodeMirror-lines"><div style="position: relative">' +
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'<div style="position: absolute; width: 100%; height: 0; overflow: hidden; visibility: hidden"></div>' +
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'<pre class="CodeMirror-cursor"> </pre>' + // Absolutely positioned blinky cursor
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'<div></div>' + // This DIV contains the actual code
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'</div></div></div></div></div>';
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if (place.appendChild) place.appendChild(wrapper); else place(wrapper);
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// I've never seen more elegant code in my life.
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var inputDiv = wrapper.firstChild, input = inputDiv.firstChild,
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scroller = wrapper.lastChild, code = scroller.firstChild,
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mover = code.firstChild, gutter = mover.firstChild, gutterText = gutter.firstChild,
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lineSpace = gutter.nextSibling.firstChild, measure = lineSpace.firstChild,
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cursor = measure.nextSibling, lineDiv = cursor.nextSibling;
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themeChanged();
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// Needed to hide big blue blinking cursor on Mobile Safari
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if (/AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent)) input.style.width = "0px";
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if (!webkit) lineSpace.draggable = true;
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if (options.tabindex != null) input.tabIndex = options.tabindex;
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if (!options.gutter && !options.lineNumbers) gutter.style.display = "none";
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// Check for problem with IE innerHTML not working when we have a
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// P (or similar) parent node.
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try { stringWidth("x"); }
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catch (e) {
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if (e.message.match(/runtime/i))
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e = new Error("A CodeMirror inside a P-style element does not work in Internet Explorer. (innerHTML bug)");
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throw e;
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}
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// Delayed object wrap timeouts, making sure only one is active. blinker holds an interval.
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var poll = new Delayed(), highlight = new Delayed(), blinker;
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// mode holds a mode API object. doc is the tree of Line objects,
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// work an array of lines that should be parsed, and history the
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// undo history (instance of History constructor).
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var mode, doc = new BranchChunk([new LeafChunk([new Line("")])]), work, focused;
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loadMode();
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// The selection. These are always maintained to point at valid
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// positions. Inverted is used to remember that the user is
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// selecting bottom-to-top.
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var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false};
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// Selection-related flags. shiftSelecting obviously tracks
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// whether the user is holding shift.
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var shiftSelecting, lastClick, lastDoubleClick, draggingText, overwrite = false;
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// Variables used by startOperation/endOperation to track what
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// happened during the operation.
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var updateInput, userSelChange, changes, textChanged, selectionChanged, leaveInputAlone,
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gutterDirty, callbacks;
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// Current visible range (may be bigger than the view window).
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var displayOffset = 0, showingFrom = 0, showingTo = 0, lastSizeC = 0;
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// bracketHighlighted is used to remember that a backet has been
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// marked.
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var bracketHighlighted;
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// Tracks the maximum line length so that the horizontal scrollbar
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// can be kept static when scrolling.
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var maxLine = "", maxWidth, tabText = computeTabText();
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// Initialize the content.
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operation(function(){setValue(options.value || ""); updateInput = false;})();
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var history = new History();
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// Register our event handlers.
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connect(scroller, "mousedown", operation(onMouseDown));
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connect(scroller, "dblclick", operation(onDoubleClick));
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connect(lineSpace, "dragstart", onDragStart);
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connect(lineSpace, "selectstart", e_preventDefault);
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// Gecko browsers fire contextmenu *after* opening the menu, at
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// which point we can't mess with it anymore. Context menu is
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// handled in onMouseDown for Gecko.
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if (!gecko) connect(scroller, "contextmenu", onContextMenu);
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connect(scroller, "scroll", function() {
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updateDisplay([]);
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if (options.fixedGutter) gutter.style.left = scroller.scrollLeft + "px";
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if (options.onScroll) options.onScroll(instance);
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});
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connect(window, "resize", function() {updateDisplay(true);});
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connect(input, "keyup", operation(onKeyUp));
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connect(input, "input", fastPoll);
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connect(input, "keydown", operation(onKeyDown));
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connect(input, "keypress", operation(onKeyPress));
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connect(input, "focus", onFocus);
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connect(input, "blur", onBlur);
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connect(scroller, "dragenter", e_stop);
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connect(scroller, "dragover", e_stop);
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connect(scroller, "drop", operation(onDrop));
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connect(scroller, "paste", function(){focusInput(); fastPoll();});
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connect(input, "paste", fastPoll);
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connect(input, "cut", operation(function(){replaceSelection("");}));
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// IE throws unspecified error in certain cases, when
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// trying to access activeElement before onload
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var hasFocus; try { hasFocus = (targetDocument.activeElement == input); } catch(e) { }
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if (hasFocus) setTimeout(onFocus, 20);
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else onBlur();
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function isLine(l) {return l >= 0 && l < doc.size;}
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// The instance object that we'll return. Mostly calls out to
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// local functions in the CodeMirror function. Some do some extra
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// range checking and/or clipping. operation is used to wrap the
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// call so that changes it makes are tracked, and the display is
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// updated afterwards.
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var instance = wrapper.CodeMirror = {
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getValue: getValue,
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setValue: operation(setValue),
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getSelection: getSelection,
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replaceSelection: operation(replaceSelection),
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focus: function(){focusInput(); onFocus(); fastPoll();},
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setOption: function(option, value) {
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var oldVal = options[option];
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options[option] = value;
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if (option == "mode" || option == "indentUnit") loadMode();
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else if (option == "readOnly" && value) {onBlur(); input.blur();}
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else if (option == "theme") themeChanged();
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else if (option == "lineWrapping" && oldVal != value) operation(wrappingChanged)();
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else if (option == "tabSize") operation(tabsChanged)();
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if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber" || option == "theme")
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operation(gutterChanged)();
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},
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getOption: function(option) {return options[option];},
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undo: operation(undo),
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redo: operation(redo),
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indentLine: operation(function(n, dir) {
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if (isLine(n)) indentLine(n, dir == null ? "smart" : dir ? "add" : "subtract");
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}),
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indentSelection: operation(indentSelected),
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historySize: function() {return {undo: history.done.length, redo: history.undone.length};},
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clearHistory: function() {history = new History();},
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matchBrackets: operation(function(){matchBrackets(true);}),
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getTokenAt: operation(function(pos) {
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pos = clipPos(pos);
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return getLine(pos.line).getTokenAt(mode, getStateBefore(pos.line), pos.ch);
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}),
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getStateAfter: function(line) {
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line = clipLine(line == null ? doc.size - 1: line);
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return getStateBefore(line + 1);
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},
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cursorCoords: function(start){
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if (start == null) start = sel.inverted;
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return pageCoords(start ? sel.from : sel.to);
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},
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charCoords: function(pos){return pageCoords(clipPos(pos));},
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coordsChar: function(coords) {
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var off = eltOffset(lineSpace);
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return coordsChar(coords.x - off.left, coords.y - off.top);
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},
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markText: operation(markText),
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setBookmark: setBookmark,
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setMarker: operation(addGutterMarker),
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clearMarker: operation(removeGutterMarker),
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setLineClass: operation(setLineClass),
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hideLine: operation(function(h) {return setLineHidden(h, true);}),
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showLine: operation(function(h) {return setLineHidden(h, false);}),
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onDeleteLine: function(line, f) {
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if (typeof line == "number") {
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if (!isLine(line)) return null;
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line = getLine(line);
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}
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(line.handlers || (line.handlers = [])).push(f);
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return line;
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},
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lineInfo: lineInfo,
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addWidget: function(pos, node, scroll, vert, horiz) {
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pos = localCoords(clipPos(pos));
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var top = pos.yBot, left = pos.x;
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node.style.position = "absolute";
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code.appendChild(node);
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if (vert == "over") top = pos.y;
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else if (vert == "near") {
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var vspace = Math.max(scroller.offsetHeight, doc.height * textHeight()),
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hspace = Math.max(code.clientWidth, lineSpace.clientWidth) - paddingLeft();
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if (pos.yBot + node.offsetHeight > vspace && pos.y > node.offsetHeight)
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top = pos.y - node.offsetHeight;
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if (left + node.offsetWidth > hspace)
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left = hspace - node.offsetWidth;
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}
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node.style.top = (top + paddingTop()) + "px";
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node.style.left = node.style.right = "";
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if (horiz == "right") {
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left = code.clientWidth - node.offsetWidth;
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node.style.right = "0px";
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} else {
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if (horiz == "left") left = 0;
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else if (horiz == "middle") left = (code.clientWidth - node.offsetWidth) / 2;
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node.style.left = (left + paddingLeft()) + "px";
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}
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if (scroll)
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scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight);
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},
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lineCount: function() {return doc.size;},
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clipPos: clipPos,
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getCursor: function(start) {
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if (start == null) start = sel.inverted;
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return copyPos(start ? sel.from : sel.to);
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},
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somethingSelected: function() {return !posEq(sel.from, sel.to);},
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setCursor: operation(function(line, ch, user) {
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if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch, user);
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else setCursor(line, ch, user);
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}),
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setSelection: operation(function(from, to, user) {
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(user ? setSelectionUser : setSelection)(clipPos(from), clipPos(to || from));
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}),
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getLine: function(line) {if (isLine(line)) return getLine(line).text;},
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getLineHandle: function(line) {if (isLine(line)) return getLine(line);},
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setLine: operation(function(line, text) {
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if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: getLine(line).text.length});
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}),
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removeLine: operation(function(line) {
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if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0}));
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}),
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replaceRange: operation(replaceRange),
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getRange: function(from, to) {return getRange(clipPos(from), clipPos(to));},
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execCommand: function(cmd) {return commands[cmd](instance);},
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// Stuff used by commands, probably not much use to outside code.
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moveH: operation(moveH),
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deleteH: operation(deleteH),
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moveV: operation(moveV),
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toggleOverwrite: function() {overwrite = !overwrite;},
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posFromIndex: function(off) {
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var lineNo = 0, ch;
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doc.iter(0, doc.size, function(line) {
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var sz = line.text.length + 1;
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if (sz > off) { ch = off; return true; }
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off -= sz;
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++lineNo;
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});
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return clipPos({line: lineNo, ch: ch});
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},
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indexFromPos: function (coords) {
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if (coords.line < 0 || coords.ch < 0) return 0;
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var index = coords.ch;
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doc.iter(0, coords.line, function (line) {
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index += line.text.length + 1;
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});
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return index;
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},
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operation: function(f){return operation(f)();},
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refresh: function(){updateDisplay(true);},
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getInputField: function(){return input;},
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getWrapperElement: function(){return wrapper;},
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getScrollerElement: function(){return scroller;},
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getGutterElement: function(){return gutter;}
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};
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function getLine(n) { return getLineAt(doc, n); }
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function updateLineHeight(line, height) {
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gutterDirty = true;
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var diff = height - line.height;
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for (var n = line; n; n = n.parent) n.height += diff;
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}
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function setValue(code) {
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var top = {line: 0, ch: 0};
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updateLines(top, {line: doc.size - 1, ch: getLine(doc.size-1).text.length},
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splitLines(code), top, top);
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updateInput = true;
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}
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function getValue(code) {
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var text = [];
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doc.iter(0, doc.size, function(line) { text.push(line.text); });
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return text.join("\n");
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}
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function onMouseDown(e) {
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setShift(e.shiftKey);
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// Check whether this is a click in a widget
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for (var n = e_target(e); n != wrapper; n = n.parentNode)
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if (n.parentNode == code && n != mover) return;
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// See if this is a click in the gutter
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for (var n = e_target(e); n != wrapper; n = n.parentNode)
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if (n.parentNode == gutterText) {
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if (options.onGutterClick)
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options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom, e);
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return e_preventDefault(e);
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}
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var start = posFromMouse(e);
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switch (e_button(e)) {
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case 3:
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if (gecko && !mac) onContextMenu(e);
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return;
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case 2:
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if (start) setCursor(start.line, start.ch, true);
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return;
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}
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// For button 1, if it was clicked inside the editor
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// (posFromMouse returning non-null), we have to adjust the
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// selection.
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if (!start) {if (e_target(e) == scroller) e_preventDefault(e); return;}
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if (!focused) onFocus();
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var now = +new Date;
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if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {
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e_preventDefault(e);
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setTimeout(focusInput, 20);
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return selectLine(start.line);
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} else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {
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lastDoubleClick = {time: now, pos: start};
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e_preventDefault(e);
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return selectWordAt(start);
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} else { lastClick = {time: now, pos: start}; }
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var last = start, going;
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if (dragAndDrop && !posEq(sel.from, sel.to) &&
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!posLess(start, sel.from) && !posLess(sel.to, start)) {
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// Let the drag handler handle this.
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if (webkit) lineSpace.draggable = true;
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var up = connect(targetDocument, "mouseup", operation(function(e2) {
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if (webkit) lineSpace.draggable = false;
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draggingText = false;
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up();
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if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
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e_preventDefault(e2);
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setCursor(start.line, start.ch, true);
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focusInput();
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}
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}), true);
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draggingText = true;
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return;
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}
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e_preventDefault(e);
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setCursor(start.line, start.ch, true);
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function extend(e) {
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var cur = posFromMouse(e, true);
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if (cur && !posEq(cur, last)) {
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if (!focused) onFocus();
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last = cur;
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setSelectionUser(start, cur);
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updateInput = false;
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var visible = visibleLines();
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if (cur.line >= visible.to || cur.line < visible.from)
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going = setTimeout(operation(function(){extend(e);}), 150);
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}
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}
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var move = connect(targetDocument, "mousemove", operation(function(e) {
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clearTimeout(going);
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e_preventDefault(e);
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extend(e);
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}), true);
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var up = connect(targetDocument, "mouseup", operation(function(e) {
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clearTimeout(going);
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var cur = posFromMouse(e);
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if (cur) setSelectionUser(start, cur);
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e_preventDefault(e);
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focusInput();
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updateInput = true;
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move(); up();
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}), true);
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}
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function onDoubleClick(e) {
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for (var n = e_target(e); n != wrapper; n = n.parentNode)
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if (n.parentNode == gutterText) return e_preventDefault(e);
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var start = posFromMouse(e);
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if (!start) return;
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lastDoubleClick = {time: +new Date, pos: start};
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e_preventDefault(e);
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selectWordAt(start);
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}
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function onDrop(e) {
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e.preventDefault();
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var pos = posFromMouse(e, true), files = e.dataTransfer.files;
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if (!pos || options.readOnly) return;
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if (files && files.length && window.FileReader && window.File) {
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function loadFile(file, i) {
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var reader = new FileReader;
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reader.onload = function() {
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text[i] = reader.result;
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if (++read == n) {
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pos = clipPos(pos);
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operation(function() {
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var end = replaceRange(text.join(""), pos, pos);
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setSelectionUser(pos, end);
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})();
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}
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};
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reader.readAsText(file);
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}
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var n = files.length, text = Array(n), read = 0;
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for (var i = 0; i < n; ++i) loadFile(files[i], i);
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}
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else {
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try {
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var text = e.dataTransfer.getData("Text");
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if (text) {
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var end = replaceRange(text, pos, pos);
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var curFrom = sel.from, curTo = sel.to;
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setSelectionUser(pos, end);
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if (draggingText) replaceRange("", curFrom, curTo);
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focusInput();
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}
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}
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catch(e){}
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}
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}
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function onDragStart(e) {
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var txt = getSelection();
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// This will reset escapeElement
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htmlEscape(txt);
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e.dataTransfer.setDragImage(escapeElement, 0, 0);
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e.dataTransfer.setData("Text", txt);
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}
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function handleKeyBinding(e) {
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var name = keyNames[e.keyCode], next = keyMap[options.keyMap].auto, bound, dropShift;
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if (name == null || e.altGraphKey) {
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if (next) options.keyMap = next;
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return null;
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}
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if (e.altKey) name = "Alt-" + name;
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if (e.ctrlKey) name = "Ctrl-" + name;
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if (e.metaKey) name = "Cmd-" + name;
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if (e.shiftKey && (bound = lookupKey("Shift-" + name, options.extraKeys, options.keyMap))) {
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dropShift = true;
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} else {
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bound = lookupKey(name, options.extraKeys, options.keyMap);
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}
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if (typeof bound == "string") {
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if (commands.propertyIsEnumerable(bound)) bound = commands[bound];
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else bound = null;
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}
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if (next && (bound || !isModifierKey(e))) options.keyMap = next;
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if (!bound) return false;
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if (dropShift) {
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var prevShift = shiftSelecting;
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shiftSelecting = null;
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bound(instance);
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shiftSelecting = prevShift;
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} else bound(instance);
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e_preventDefault(e);
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return true;
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}
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var lastStoppedKey = null;
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function onKeyDown(e) {
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if (!focused) onFocus();
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var code = e.keyCode;
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// IE does strange things with escape.
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if (ie && code == 27) { e.returnValue = false; }
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setShift(code == 16 || e.shiftKey);
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// First give onKeyEvent option a chance to handle this.
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if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
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var handled = handleKeyBinding(e);
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if (window.opera) {
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lastStoppedKey = handled ? e.keyCode : null;
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// Opera has no cut event... we try to at least catch the key combo
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if (!handled && (mac ? e.metaKey : e.ctrlKey) && e.keyCode == 88)
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replaceSelection("");
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}
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}
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function onKeyPress(e) {
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if (window.opera && e.keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
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if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
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if (window.opera && !e.which && handleKeyBinding(e)) return;
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if (options.electricChars && mode.electricChars) {
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var ch = String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode);
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if (mode.electricChars.indexOf(ch) > -1)
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setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 75);
|
}
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fastPoll();
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}
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function onKeyUp(e) {
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if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
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if (e.keyCode == 16) shiftSelecting = null;
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}
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function onFocus() {
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if (options.readOnly) return;
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if (!focused) {
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if (options.onFocus) options.onFocus(instance);
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focused = true;
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if (wrapper.className.search(/\bCodeMirror-focused\b/) == -1)
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wrapper.className += " CodeMirror-focused";
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if (!leaveInputAlone) resetInput(true);
|
}
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slowPoll();
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restartBlink();
|
}
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function onBlur() {
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if (focused) {
|
if (options.onBlur) options.onBlur(instance);
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focused = false;
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wrapper.className = wrapper.className.replace(" CodeMirror-focused", "");
|
}
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clearInterval(blinker);
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setTimeout(function() {if (!focused) shiftSelecting = null;}, 150);
|
}
|
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// Replace the range from from to to by the strings in newText.
|
// Afterwards, set the selection to selFrom, selTo.
|
function updateLines(from, to, newText, selFrom, selTo) {
|
if (history) {
|
var old = [];
|
doc.iter(from.line, to.line + 1, function(line) { old.push(line.text); });
|
history.addChange(from.line, newText.length, old);
|
while (history.done.length > options.undoDepth) history.done.shift();
|
}
|
updateLinesNoUndo(from, to, newText, selFrom, selTo);
|
}
|
function unredoHelper(from, to) {
|
var change = from.pop();
|
if (change) {
|
var replaced = [], end = change.start + change.added;
|
doc.iter(change.start, end, function(line) { replaced.push(line.text); });
|
to.push({start: change.start, added: change.old.length, old: replaced});
|
var pos = clipPos({line: change.start + change.old.length - 1,
|
ch: editEnd(replaced[replaced.length-1], change.old[change.old.length-1])});
|
updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: getLine(end-1).text.length}, change.old, pos, pos);
|
updateInput = true;
|
}
|
}
|
function undo() {unredoHelper(history.done, history.undone);}
|
function redo() {unredoHelper(history.undone, history.done);}
|
|
function updateLinesNoUndo(from, to, newText, selFrom, selTo) {
|
var recomputeMaxLength = false, maxLineLength = maxLine.length;
|
if (!options.lineWrapping)
|
doc.iter(from.line, to.line, function(line) {
|
if (line.text.length == maxLineLength) {recomputeMaxLength = true; return true;}
|
});
|
if (from.line != to.line || newText.length > 1) gutterDirty = true;
|
|
var nlines = to.line - from.line, firstLine = getLine(from.line), lastLine = getLine(to.line);
|
// First adjust the line structure, taking some care to leave highlighting intact.
|
if (from.ch == 0 && to.ch == 0 && newText[newText.length - 1] == "") {
|
// This is a whole-line replace. Treated specially to make
|
// sure line objects move the way they are supposed to.
|
var added = [], prevLine = null;
|
if (from.line) {
|
prevLine = getLine(from.line - 1);
|
prevLine.fixMarkEnds(lastLine);
|
} else lastLine.fixMarkStarts();
|
for (var i = 0, e = newText.length - 1; i < e; ++i)
|
added.push(Line.inheritMarks(newText[i], prevLine));
|
if (nlines) doc.remove(from.line, nlines, callbacks);
|
if (added.length) doc.insert(from.line, added);
|
} else if (firstLine == lastLine) {
|
if (newText.length == 1)
|
firstLine.replace(from.ch, to.ch, newText[0]);
|
else {
|
lastLine = firstLine.split(to.ch, newText[newText.length-1]);
|
firstLine.replace(from.ch, null, newText[0]);
|
firstLine.fixMarkEnds(lastLine);
|
var added = [];
|
for (var i = 1, e = newText.length - 1; i < e; ++i)
|
added.push(Line.inheritMarks(newText[i], firstLine));
|
added.push(lastLine);
|
doc.insert(from.line + 1, added);
|
}
|
} else if (newText.length == 1) {
|
firstLine.replace(from.ch, null, newText[0]);
|
lastLine.replace(null, to.ch, "");
|
firstLine.append(lastLine);
|
doc.remove(from.line + 1, nlines, callbacks);
|
} else {
|
var added = [];
|
firstLine.replace(from.ch, null, newText[0]);
|
lastLine.replace(null, to.ch, newText[newText.length-1]);
|
firstLine.fixMarkEnds(lastLine);
|
for (var i = 1, e = newText.length - 1; i < e; ++i)
|
added.push(Line.inheritMarks(newText[i], firstLine));
|
if (nlines > 1) doc.remove(from.line + 1, nlines - 1, callbacks);
|
doc.insert(from.line + 1, added);
|
}
|
if (options.lineWrapping) {
|
var perLine = scroller.clientWidth / charWidth() - 3;
|
doc.iter(from.line, from.line + newText.length, function(line) {
|
if (line.hidden) return;
|
var guess = Math.ceil(line.text.length / perLine) || 1;
|
if (guess != line.height) updateLineHeight(line, guess);
|
});
|
} else {
|
doc.iter(from.line, i + newText.length, function(line) {
|
var l = line.text;
|
if (l.length > maxLineLength) {
|
maxLine = l; maxLineLength = l.length; maxWidth = null;
|
recomputeMaxLength = false;
|
}
|
});
|
if (recomputeMaxLength) {
|
maxLineLength = 0; maxLine = ""; maxWidth = null;
|
doc.iter(0, doc.size, function(line) {
|
var l = line.text;
|
if (l.length > maxLineLength) {
|
maxLineLength = l.length; maxLine = l;
|
}
|
});
|
}
|
}
|
|
// Add these lines to the work array, so that they will be
|
// highlighted. Adjust work lines if lines were added/removed.
|
var newWork = [], lendiff = newText.length - nlines - 1;
|
for (var i = 0, l = work.length; i < l; ++i) {
|
var task = work[i];
|
if (task < from.line) newWork.push(task);
|
else if (task > to.line) newWork.push(task + lendiff);
|
}
|
var hlEnd = from.line + Math.min(newText.length, 500);
|
highlightLines(from.line, hlEnd);
|
newWork.push(hlEnd);
|
work = newWork;
|
startWorker(100);
|
// Remember that these lines changed, for updating the display
|
changes.push({from: from.line, to: to.line + 1, diff: lendiff});
|
var changeObj = {from: from, to: to, text: newText};
|
if (textChanged) {
|
for (var cur = textChanged; cur.next; cur = cur.next) {}
|
cur.next = changeObj;
|
} else textChanged = changeObj;
|
|
// Update the selection
|
function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;}
|
setSelection(selFrom, selTo, updateLine(sel.from.line), updateLine(sel.to.line));
|
|
// Make sure the scroll-size div has the correct height.
|
code.style.height = (doc.height * textHeight() + 2 * paddingTop()) + "px";
|
}
|
|
function replaceRange(code, from, to) {
|
from = clipPos(from);
|
if (!to) to = from; else to = clipPos(to);
|
code = splitLines(code);
|
function adjustPos(pos) {
|
if (posLess(pos, from)) return pos;
|
if (!posLess(to, pos)) return end;
|
var line = pos.line + code.length - (to.line - from.line) - 1;
|
var ch = pos.ch;
|
if (pos.line == to.line)
|
ch += code[code.length-1].length - (to.ch - (to.line == from.line ? from.ch : 0));
|
return {line: line, ch: ch};
|
}
|
var end;
|
replaceRange1(code, from, to, function(end1) {
|
end = end1;
|
return {from: adjustPos(sel.from), to: adjustPos(sel.to)};
|
});
|
return end;
|
}
|
function replaceSelection(code, collapse) {
|
replaceRange1(splitLines(code), sel.from, sel.to, function(end) {
|
if (collapse == "end") return {from: end, to: end};
|
else if (collapse == "start") return {from: sel.from, to: sel.from};
|
else return {from: sel.from, to: end};
|
});
|
}
|
function replaceRange1(code, from, to, computeSel) {
|
var endch = code.length == 1 ? code[0].length + from.ch : code[code.length-1].length;
|
var newSel = computeSel({line: from.line + code.length - 1, ch: endch});
|
updateLines(from, to, code, newSel.from, newSel.to);
|
}
|
|
function getRange(from, to) {
|
var l1 = from.line, l2 = to.line;
|
if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch);
|
var code = [getLine(l1).text.slice(from.ch)];
|
doc.iter(l1 + 1, l2, function(line) { code.push(line.text); });
|
code.push(getLine(l2).text.slice(0, to.ch));
|
return code.join("\n");
|
}
|
function getSelection() {
|
return getRange(sel.from, sel.to);
|
}
|
|
var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll
|
function slowPoll() {
|
if (pollingFast) return;
|
poll.set(options.pollInterval, function() {
|
startOperation();
|
readInput();
|
if (focused) slowPoll();
|
endOperation();
|
});
|
}
|
function fastPoll() {
|
var missed = false;
|
pollingFast = true;
|
function p() {
|
startOperation();
|
var changed = readInput();
|
if (!changed && !missed) {missed = true; poll.set(60, p);}
|
else {pollingFast = false; slowPoll();}
|
endOperation();
|
}
|
poll.set(20, p);
|
}
|
|
// Previnput is a hack to work with IME. If we reset the textarea
|
// on every change, that breaks IME. So we look for changes
|
// compared to the previous content instead. (Modern browsers have
|
// events that indicate IME taking place, but these are not widely
|
// supported or compatible enough yet to rely on.)
|
var prevInput = "";
|
function readInput() {
|
if (leaveInputAlone || !focused || hasSelection(input)) return false;
|
var text = input.value;
|
if (text == prevInput) return false;
|
shiftSelecting = null;
|
var same = 0, l = Math.min(prevInput.length, text.length);
|
while (same < l && prevInput[same] == text[same]) ++same;
|
if (same < prevInput.length)
|
sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)};
|
else if (overwrite && posEq(sel.from, sel.to))
|
sel.to = {line: sel.to.line, ch: Math.min(getLine(sel.to.line).text.length, sel.to.ch + (text.length - same))};
|
replaceSelection(text.slice(same), "end");
|
prevInput = text;
|
return true;
|
}
|
function resetInput(user) {
|
if (!posEq(sel.from, sel.to)) {
|
prevInput = "";
|
input.value = getSelection();
|
input.select();
|
} else if (user) prevInput = input.value = "";
|
}
|
|
function focusInput() {
|
if (!options.readOnly) input.focus();
|
}
|
|
function scrollEditorIntoView() {
|
if (!cursor.getBoundingClientRect) return;
|
var rect = cursor.getBoundingClientRect();
|
// IE returns bogus coordinates when the instance sits inside of an iframe and the cursor is hidden
|
if (ie && rect.top == rect.bottom) return;
|
var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
|
if (rect.top < 0 || rect.bottom > winH) cursor.scrollIntoView();
|
}
|
function scrollCursorIntoView() {
|
var cursor = localCoords(sel.inverted ? sel.from : sel.to);
|
var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x;
|
return scrollIntoView(x, cursor.y, x, cursor.yBot);
|
}
|
function scrollIntoView(x1, y1, x2, y2) {
|
var pl = paddingLeft(), pt = paddingTop(), lh = textHeight();
|
y1 += pt; y2 += pt; x1 += pl; x2 += pl;
|
var screen = scroller.clientHeight, screentop = scroller.scrollTop, scrolled = false, result = true;
|
if (y1 < screentop) {scroller.scrollTop = Math.max(0, y1 - 2*lh); scrolled = true;}
|
else if (y2 > screentop + screen) {scroller.scrollTop = y2 + lh - screen; scrolled = true;}
|
|
var screenw = scroller.clientWidth, screenleft = scroller.scrollLeft;
|
var gutterw = options.fixedGutter ? gutter.clientWidth : 0;
|
if (x1 < screenleft + gutterw) {
|
if (x1 < 50) x1 = 0;
|
scroller.scrollLeft = Math.max(0, x1 - 10 - gutterw);
|
scrolled = true;
|
}
|
else if (x2 > screenw + screenleft - 3) {
|
scroller.scrollLeft = x2 + 10 - screenw;
|
scrolled = true;
|
if (x2 > code.clientWidth) result = false;
|
}
|
if (scrolled && options.onScroll) options.onScroll(instance);
|
return result;
|
}
|
|
function visibleLines() {
|
var lh = textHeight(), top = scroller.scrollTop - paddingTop();
|
var from_height = Math.max(0, Math.floor(top / lh));
|
var to_height = Math.ceil((top + scroller.clientHeight) / lh);
|
return {from: lineAtHeight(doc, from_height),
|
to: lineAtHeight(doc, to_height)};
|
}
|
// Uses a set of changes plus the current scroll position to
|
// determine which DOM updates have to be made, and makes the
|
// updates.
|
function updateDisplay(changes, suppressCallback) {
|
if (!scroller.clientWidth) {
|
showingFrom = showingTo = displayOffset = 0;
|
return;
|
}
|
// Compute the new visible window
|
var visible = visibleLines();
|
// Bail out if the visible area is already rendered and nothing changed.
|
if (changes !== true && changes.length == 0 && visible.from >= showingFrom && visible.to <= showingTo) return;
|
var from = Math.max(visible.from - 100, 0), to = Math.min(doc.size, visible.to + 100);
|
if (showingFrom < from && from - showingFrom < 20) from = showingFrom;
|
if (showingTo > to && showingTo - to < 20) to = Math.min(doc.size, showingTo);
|
|
// Create a range of theoretically intact lines, and punch holes
|
// in that using the change info.
|
var intact = changes === true ? [] :
|
computeIntact([{from: showingFrom, to: showingTo, domStart: 0}], changes);
|
// Clip off the parts that won't be visible
|
var intactLines = 0;
|
for (var i = 0; i < intact.length; ++i) {
|
var range = intact[i];
|
if (range.from < from) {range.domStart += (from - range.from); range.from = from;}
|
if (range.to > to) range.to = to;
|
if (range.from >= range.to) intact.splice(i--, 1);
|
else intactLines += range.to - range.from;
|
}
|
if (intactLines == to - from) return;
|
intact.sort(function(a, b) {return a.domStart - b.domStart;});
|
|
var th = textHeight(), gutterDisplay = gutter.style.display;
|
lineDiv.style.display = gutter.style.display = "none";
|
patchDisplay(from, to, intact);
|
lineDiv.style.display = "";
|
|
// Position the mover div to align with the lines it's supposed
|
// to be showing (which will cover the visible display)
|
var different = from != showingFrom || to != showingTo || lastSizeC != scroller.clientHeight + th;
|
// This is just a bogus formula that detects when the editor is
|
// resized or the font size changes.
|
if (different) lastSizeC = scroller.clientHeight + th;
|
showingFrom = from; showingTo = to;
|
displayOffset = heightAtLine(doc, from);
|
mover.style.top = (displayOffset * th) + "px";
|
code.style.height = (doc.height * th + 2 * paddingTop()) + "px";
|
|
// Since this is all rather error prone, it is honoured with the
|
// only assertion in the whole file.
|
if (lineDiv.childNodes.length != showingTo - showingFrom)
|
throw new Error("BAD PATCH! " + JSON.stringify(intact) + " size=" + (showingTo - showingFrom) +
|
" nodes=" + lineDiv.childNodes.length);
|
|
if (options.lineWrapping) {
|
maxWidth = scroller.clientWidth;
|
var curNode = lineDiv.firstChild;
|
doc.iter(showingFrom, showingTo, function(line) {
|
if (!line.hidden) {
|
var height = Math.round(curNode.offsetHeight / th) || 1;
|
if (line.height != height) {updateLineHeight(line, height); gutterDirty = true;}
|
}
|
curNode = curNode.nextSibling;
|
});
|
} else {
|
if (maxWidth == null) maxWidth = stringWidth(maxLine);
|
if (maxWidth > scroller.clientWidth) {
|
lineSpace.style.width = maxWidth + "px";
|
// Needed to prevent odd wrapping/hiding of widgets placed in here.
|
code.style.width = "";
|
code.style.width = scroller.scrollWidth + "px";
|
} else {
|
lineSpace.style.width = code.style.width = "";
|
}
|
}
|
gutter.style.display = gutterDisplay;
|
if (different || gutterDirty) updateGutter();
|
updateCursor();
|
if (!suppressCallback && options.onUpdate) options.onUpdate(instance);
|
return true;
|
}
|
|
function computeIntact(intact, changes) {
|
for (var i = 0, l = changes.length || 0; i < l; ++i) {
|
var change = changes[i], intact2 = [], diff = change.diff || 0;
|
for (var j = 0, l2 = intact.length; j < l2; ++j) {
|
var range = intact[j];
|
if (change.to <= range.from && change.diff)
|
intact2.push({from: range.from + diff, to: range.to + diff,
|
domStart: range.domStart});
|
else if (change.to <= range.from || change.from >= range.to)
|
intact2.push(range);
|
else {
|
if (change.from > range.from)
|
intact2.push({from: range.from, to: change.from, domStart: range.domStart});
|
if (change.to < range.to)
|
intact2.push({from: change.to + diff, to: range.to + diff,
|
domStart: range.domStart + (change.to - range.from)});
|
}
|
}
|
intact = intact2;
|
}
|
return intact;
|
}
|
|
function patchDisplay(from, to, intact) {
|
// The first pass removes the DOM nodes that aren't intact.
|
if (!intact.length) lineDiv.innerHTML = "";
|
else {
|
function killNode(node) {
|
var tmp = node.nextSibling;
|
node.parentNode.removeChild(node);
|
return tmp;
|
}
|
var domPos = 0, curNode = lineDiv.firstChild, n;
|
for (var i = 0; i < intact.length; ++i) {
|
var cur = intact[i];
|
while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;}
|
for (var j = 0, e = cur.to - cur.from; j < e; ++j) {curNode = curNode.nextSibling; domPos++;}
|
}
|
while (curNode) curNode = killNode(curNode);
|
}
|
// This pass fills in the lines that actually changed.
|
var nextIntact = intact.shift(), curNode = lineDiv.firstChild, j = from;
|
var sfrom = sel.from.line, sto = sel.to.line, inSel = sfrom < from && sto >= from;
|
var scratch = targetDocument.createElement("div"), newElt;
|
doc.iter(from, to, function(line) {
|
var ch1 = null, ch2 = null;
|
if (inSel) {
|
ch1 = 0;
|
if (sto == j) {inSel = false; ch2 = sel.to.ch;}
|
} else if (sfrom == j) {
|
if (sto == j) {ch1 = sel.from.ch; ch2 = sel.to.ch;}
|
else {inSel = true; ch1 = sel.from.ch;}
|
}
|
if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();
|
if (!nextIntact || nextIntact.from > j) {
|
if (line.hidden) scratch.innerHTML = "<pre></pre>";
|
else scratch.innerHTML = line.getHTML(ch1, ch2, true, tabText);
|
lineDiv.insertBefore(scratch.firstChild, curNode);
|
} else {
|
curNode = curNode.nextSibling;
|
}
|
++j;
|
});
|
}
|
|
function updateGutter() {
|
if (!options.gutter && !options.lineNumbers) return;
|
var hText = mover.offsetHeight, hEditor = scroller.clientHeight;
|
gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px";
|
var html = [], i = showingFrom;
|
doc.iter(showingFrom, Math.max(showingTo, showingFrom + 1), function(line) {
|
if (line.hidden) {
|
html.push("<pre></pre>");
|
} else {
|
var marker = line.gutterMarker;
|
var text = options.lineNumbers ? i + options.firstLineNumber : null;
|
if (marker && marker.text)
|
text = marker.text.replace("%N%", text != null ? text : "");
|
else if (text == null)
|
text = "\u00a0";
|
html.push((marker && marker.style ? '<pre class="' + marker.style + '">' : "<pre>"), text);
|
for (var j = 1; j < line.height; ++j) html.push("<br/> ");
|
html.push("</pre>");
|
}
|
++i;
|
});
|
gutter.style.display = "none";
|
gutterText.innerHTML = html.join("");
|
var minwidth = String(doc.size).length, firstNode = gutterText.firstChild, val = eltText(firstNode), pad = "";
|
while (val.length + pad.length < minwidth) pad += "\u00a0";
|
if (pad) firstNode.insertBefore(targetDocument.createTextNode(pad), firstNode.firstChild);
|
gutter.style.display = "";
|
lineSpace.style.marginLeft = gutter.offsetWidth + "px";
|
gutterDirty = false;
|
}
|
function updateCursor() {
|
var head = sel.inverted ? sel.from : sel.to, lh = textHeight();
|
var pos = localCoords(head, true);
|
var wrapOff = eltOffset(wrapper), lineOff = eltOffset(lineDiv);
|
inputDiv.style.top = (pos.y + lineOff.top - wrapOff.top) + "px";
|
inputDiv.style.left = (pos.x + lineOff.left - wrapOff.left) + "px";
|
if (posEq(sel.from, sel.to)) {
|
cursor.style.top = pos.y + "px";
|
cursor.style.left = (options.lineWrapping ? Math.min(pos.x, lineSpace.offsetWidth) : pos.x) + "px";
|
cursor.style.display = "";
|
}
|
else cursor.style.display = "none";
|
}
|
|
function setShift(val) {
|
if (val) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
|
else shiftSelecting = null;
|
}
|
function setSelectionUser(from, to) {
|
var sh = shiftSelecting && clipPos(shiftSelecting);
|
if (sh) {
|
if (posLess(sh, from)) from = sh;
|
else if (posLess(to, sh)) to = sh;
|
}
|
setSelection(from, to);
|
userSelChange = true;
|
}
|
// Update the selection. Last two args are only used by
|
// updateLines, since they have to be expressed in the line
|
// numbers before the update.
|
function setSelection(from, to, oldFrom, oldTo) {
|
goalColumn = null;
|
if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
|
if (posEq(sel.from, from) && posEq(sel.to, to)) return;
|
if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}
|
|
// Skip over hidden lines.
|
if (from.line != oldFrom) from = skipHidden(from, oldFrom, sel.from.ch);
|
if (to.line != oldTo) to = skipHidden(to, oldTo, sel.to.ch);
|
|
if (posEq(from, to)) sel.inverted = false;
|
else if (posEq(from, sel.to)) sel.inverted = false;
|
else if (posEq(to, sel.from)) sel.inverted = true;
|
|
// Some ugly logic used to only mark the lines that actually did
|
// see a change in selection as changed, rather than the whole
|
// selected range.
|
if (posEq(from, to)) {
|
if (!posEq(sel.from, sel.to))
|
changes.push({from: oldFrom, to: oldTo + 1});
|
}
|
else if (posEq(sel.from, sel.to)) {
|
changes.push({from: from.line, to: to.line + 1});
|
}
|
else {
|
if (!posEq(from, sel.from)) {
|
if (from.line < oldFrom)
|
changes.push({from: from.line, to: Math.min(to.line, oldFrom) + 1});
|
else
|
changes.push({from: oldFrom, to: Math.min(oldTo, from.line) + 1});
|
}
|
if (!posEq(to, sel.to)) {
|
if (to.line < oldTo)
|
changes.push({from: Math.max(oldFrom, from.line), to: oldTo + 1});
|
else
|
changes.push({from: Math.max(from.line, oldTo), to: to.line + 1});
|
}
|
}
|
sel.from = from; sel.to = to;
|
selectionChanged = true;
|
}
|
function skipHidden(pos, oldLine, oldCh) {
|
function getNonHidden(dir) {
|
var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1;
|
while (lNo != end) {
|
var line = getLine(lNo);
|
if (!line.hidden) {
|
var ch = pos.ch;
|
if (ch > oldCh || ch > line.text.length) ch = line.text.length;
|
return {line: lNo, ch: ch};
|
}
|
lNo += dir;
|
}
|
}
|
var line = getLine(pos.line);
|
if (!line.hidden) return pos;
|
if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1);
|
else return getNonHidden(-1) || getNonHidden(1);
|
}
|
function setCursor(line, ch, user) {
|
var pos = clipPos({line: line, ch: ch || 0});
|
(user ? setSelectionUser : setSelection)(pos, pos);
|
}
|
|
function clipLine(n) {return Math.max(0, Math.min(n, doc.size-1));}
|
function clipPos(pos) {
|
if (pos.line < 0) return {line: 0, ch: 0};
|
if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc.size-1).text.length};
|
var ch = pos.ch, linelen = getLine(pos.line).text.length;
|
if (ch == null || ch > linelen) return {line: pos.line, ch: linelen};
|
else if (ch < 0) return {line: pos.line, ch: 0};
|
else return pos;
|
}
|
|
function findPosH(dir, unit) {
|
var end = sel.inverted ? sel.from : sel.to, line = end.line, ch = end.ch;
|
var lineObj = getLine(line);
|
function findNextLine() {
|
for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) {
|
var lo = getLine(l);
|
if (!lo.hidden) { line = l; lineObj = lo; return true; }
|
}
|
}
|
function moveOnce(boundToLine) {
|
if (ch == (dir < 0 ? 0 : lineObj.text.length)) {
|
if (!boundToLine && findNextLine()) ch = dir < 0 ? lineObj.text.length : 0;
|
else return false;
|
} else ch += dir;
|
return true;
|
}
|
if (unit == "char") moveOnce();
|
else if (unit == "column") moveOnce(true);
|
else if (unit == "word") {
|
var sawWord = false;
|
for (;;) {
|
if (dir < 0) if (!moveOnce()) break;
|
if (isWordChar(lineObj.text.charAt(ch))) sawWord = true;
|
else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;}
|
if (dir > 0) if (!moveOnce()) break;
|
}
|
}
|
return {line: line, ch: ch};
|
}
|
function moveH(dir, unit) {
|
var pos = dir < 0 ? sel.from : sel.to;
|
if (shiftSelecting || posEq(sel.from, sel.to)) pos = findPosH(dir, unit);
|
setCursor(pos.line, pos.ch, true);
|
}
|
function deleteH(dir, unit) {
|
if (!posEq(sel.from, sel.to)) replaceRange("", sel.from, sel.to);
|
else if (dir < 0) replaceRange("", findPosH(dir, unit), sel.to);
|
else replaceRange("", sel.from, findPosH(dir, unit));
|
userSelChange = true;
|
}
|
var goalColumn = null;
|
function moveV(dir, unit) {
|
var dist = 0, pos = localCoords(sel.inverted ? sel.from : sel.to, true);
|
if (goalColumn != null) pos.x = goalColumn;
|
if (unit == "page") dist = scroller.clientHeight;
|
else if (unit == "line") dist = textHeight();
|
var target = coordsChar(pos.x, pos.y + dist * dir + 2);
|
setCursor(target.line, target.ch, true);
|
goalColumn = pos.x;
|
}
|
|
function selectWordAt(pos) {
|
var line = getLine(pos.line).text;
|
var start = pos.ch, end = pos.ch;
|
while (start > 0 && isWordChar(line.charAt(start - 1))) --start;
|
while (end < line.length && isWordChar(line.charAt(end))) ++end;
|
setSelectionUser({line: pos.line, ch: start}, {line: pos.line, ch: end});
|
}
|
function selectLine(line) {
|
setSelectionUser({line: line, ch: 0}, {line: line, ch: getLine(line).text.length});
|
}
|
function indentSelected(mode) {
|
if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);
|
var e = sel.to.line - (sel.to.ch ? 0 : 1);
|
for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode);
|
}
|
|
function indentLine(n, how) {
|
if (!how) how = "add";
|
if (how == "smart") {
|
if (!mode.indent) how = "prev";
|
else var state = getStateBefore(n);
|
}
|
|
var line = getLine(n), curSpace = line.indentation(options.tabSize),
|
curSpaceString = line.text.match(/^\s*/)[0], indentation;
|
if (how == "prev") {
|
if (n) indentation = getLine(n-1).indentation(options.tabSize);
|
else indentation = 0;
|
}
|
else if (how == "smart") indentation = mode.indent(state, line.text.slice(curSpaceString.length), line.text);
|
else if (how == "add") indentation = curSpace + options.indentUnit;
|
else if (how == "subtract") indentation = curSpace - options.indentUnit;
|
indentation = Math.max(0, indentation);
|
var diff = indentation - curSpace;
|
|
if (!diff) {
|
if (sel.from.line != n && sel.to.line != n) return;
|
var indentString = curSpaceString;
|
}
|
else {
|
var indentString = "", pos = 0;
|
if (options.indentWithTabs)
|
for (var i = Math.floor(indentation / options.tabSize); i; --i) {pos += options.tabSize; indentString += "\t";}
|
while (pos < indentation) {++pos; indentString += " ";}
|
}
|
|
replaceRange(indentString, {line: n, ch: 0}, {line: n, ch: curSpaceString.length});
|
}
|
|
function loadMode() {
|
mode = CodeMirror.getMode(options, options.mode);
|
doc.iter(0, doc.size, function(line) { line.stateAfter = null; });
|
work = [0];
|
startWorker();
|
}
|
function gutterChanged() {
|
var visible = options.gutter || options.lineNumbers;
|
gutter.style.display = visible ? "" : "none";
|
if (visible) gutterDirty = true;
|
else lineDiv.parentNode.style.marginLeft = 0;
|
}
|
function wrappingChanged(from, to) {
|
if (options.lineWrapping) {
|
wrapper.className += " CodeMirror-wrap";
|
var perLine = scroller.clientWidth / charWidth() - 3;
|
doc.iter(0, doc.size, function(line) {
|
if (line.hidden) return;
|
var guess = Math.ceil(line.text.length / perLine) || 1;
|
if (guess != 1) updateLineHeight(line, guess);
|
});
|
lineSpace.style.width = code.style.width = "";
|
} else {
|
wrapper.className = wrapper.className.replace(" CodeMirror-wrap", "");
|
maxWidth = null; maxLine = "";
|
doc.iter(0, doc.size, function(line) {
|
if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);
|
if (line.text.length > maxLine.length) maxLine = line.text;
|
});
|
}
|
changes.push({from: 0, to: doc.size});
|
}
|
function computeTabText() {
|
for (var str = '<span class="cm-tab">', i = 0; i < options.tabSize; ++i) str += " ";
|
return str + "</span>";
|
}
|
function tabsChanged() {
|
tabText = computeTabText();
|
updateDisplay(true);
|
}
|
function themeChanged() {
|
scroller.className = scroller.className.replace(/\s*cm-s-\w+/g, "") +
|
options.theme.replace(/(^|\s)\s*/g, " cm-s-");
|
}
|
|
function TextMarker() { this.set = []; }
|
TextMarker.prototype.clear = operation(function() {
|
var min = Infinity, max = -Infinity;
|
for (var i = 0, e = this.set.length; i < e; ++i) {
|
var line = this.set[i], mk = line.marked;
|
if (!mk || !line.parent) continue;
|
var lineN = lineNo(line);
|
min = Math.min(min, lineN); max = Math.max(max, lineN);
|
for (var j = 0; j < mk.length; ++j)
|
if (mk[j].set == this.set) mk.splice(j--, 1);
|
}
|
if (min != Infinity)
|
changes.push({from: min, to: max + 1});
|
});
|
TextMarker.prototype.find = function() {
|
var from, to;
|
for (var i = 0, e = this.set.length; i < e; ++i) {
|
var line = this.set[i], mk = line.marked;
|
for (var j = 0; j < mk.length; ++j) {
|
var mark = mk[j];
|
if (mark.set == this.set) {
|
if (mark.from != null || mark.to != null) {
|
var found = lineNo(line);
|
if (found != null) {
|
if (mark.from != null) from = {line: found, ch: mark.from};
|
if (mark.to != null) to = {line: found, ch: mark.to};
|
}
|
}
|
}
|
}
|
}
|
return {from: from, to: to};
|
};
|
|
function markText(from, to, className) {
|
from = clipPos(from); to = clipPos(to);
|
var tm = new TextMarker();
|
function add(line, from, to, className) {
|
getLine(line).addMark(new MarkedText(from, to, className, tm.set));
|
}
|
if (from.line == to.line) add(from.line, from.ch, to.ch, className);
|
else {
|
add(from.line, from.ch, null, className);
|
for (var i = from.line + 1, e = to.line; i < e; ++i)
|
add(i, null, null, className);
|
add(to.line, null, to.ch, className);
|
}
|
changes.push({from: from.line, to: to.line + 1});
|
return tm;
|
}
|
|
function setBookmark(pos) {
|
pos = clipPos(pos);
|
var bm = new Bookmark(pos.ch);
|
getLine(pos.line).addMark(bm);
|
return bm;
|
}
|
|
function addGutterMarker(line, text, className) {
|
if (typeof line == "number") line = getLine(clipLine(line));
|
line.gutterMarker = {text: text, style: className};
|
gutterDirty = true;
|
return line;
|
}
|
function removeGutterMarker(line) {
|
if (typeof line == "number") line = getLine(clipLine(line));
|
line.gutterMarker = null;
|
gutterDirty = true;
|
}
|
|
function changeLine(handle, op) {
|
var no = handle, line = handle;
|
if (typeof handle == "number") line = getLine(clipLine(handle));
|
else no = lineNo(handle);
|
if (no == null) return null;
|
if (op(line, no)) changes.push({from: no, to: no + 1});
|
else return null;
|
return line;
|
}
|
function setLineClass(handle, className) {
|
return changeLine(handle, function(line) {
|
if (line.className != className) {
|
line.className = className;
|
return true;
|
}
|
});
|
}
|
function setLineHidden(handle, hidden) {
|
return changeLine(handle, function(line, no) {
|
if (line.hidden != hidden) {
|
line.hidden = hidden;
|
updateLineHeight(line, hidden ? 0 : 1);
|
if (hidden && (sel.from.line == no || sel.to.line == no))
|
setSelection(skipHidden(sel.from, sel.from.line, sel.from.ch),
|
skipHidden(sel.to, sel.to.line, sel.to.ch));
|
return (gutterDirty = true);
|
}
|
});
|
}
|
|
function lineInfo(line) {
|
if (typeof line == "number") {
|
if (!isLine(line)) return null;
|
var n = line;
|
line = getLine(line);
|
if (!line) return null;
|
}
|
else {
|
var n = lineNo(line);
|
if (n == null) return null;
|
}
|
var marker = line.gutterMarker;
|
return {line: n, handle: line, text: line.text, markerText: marker && marker.text,
|
markerClass: marker && marker.style, lineClass: line.className};
|
}
|
|
function stringWidth(str) {
|
measure.innerHTML = "<pre><span>x</span></pre>";
|
measure.firstChild.firstChild.firstChild.nodeValue = str;
|
return measure.firstChild.firstChild.offsetWidth || 10;
|
}
|
// These are used to go from pixel positions to character
|
// positions, taking varying character widths into account.
|
function charFromX(line, x) {
|
if (x <= 0) return 0;
|
var lineObj = getLine(line), text = lineObj.text;
|
function getX(len) {
|
measure.innerHTML = "<pre><span>" + lineObj.getHTML(null, null, false, tabText, len) + "</span></pre>";
|
return measure.firstChild.firstChild.offsetWidth;
|
}
|
var from = 0, fromX = 0, to = text.length, toX;
|
// Guess a suitable upper bound for our search.
|
var estimated = Math.min(to, Math.ceil(x / charWidth()));
|
for (;;) {
|
var estX = getX(estimated);
|
if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
|
else {toX = estX; to = estimated; break;}
|
}
|
if (x > toX) return to;
|
// Try to guess a suitable lower bound as well.
|
estimated = Math.floor(to * 0.8); estX = getX(estimated);
|
if (estX < x) {from = estimated; fromX = estX;}
|
// Do a binary search between these bounds.
|
for (;;) {
|
if (to - from <= 1) return (toX - x > x - fromX) ? from : to;
|
var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
|
if (middleX > x) {to = middle; toX = middleX;}
|
else {from = middle; fromX = middleX;}
|
}
|
}
|
|
var tempId = Math.floor(Math.random() * 0xffffff).toString(16);
|
function measureLine(line, ch) {
|
var extra = "";
|
// Include extra text at the end to make sure the measured line is wrapped in the right way.
|
if (options.lineWrapping) {
|
var end = line.text.indexOf(" ", ch + 2);
|
extra = htmlEscape(line.text.slice(ch + 1, end < 0 ? line.text.length : end + (ie ? 5 : 0)));
|
}
|
measure.innerHTML = "<pre>" + line.getHTML(null, null, false, tabText, ch) +
|
'<span id="CodeMirror-temp-' + tempId + '">' + htmlEscape(line.text.charAt(ch) || " ") + "</span>" +
|
extra + "</pre>";
|
var elt = document.getElementById("CodeMirror-temp-" + tempId);
|
var top = elt.offsetTop, left = elt.offsetLeft;
|
// Older IEs report zero offsets for spans directly after a wrap
|
if (ie && ch && top == 0 && left == 0) {
|
var backup = document.createElement("span");
|
backup.innerHTML = "x";
|
elt.parentNode.insertBefore(backup, elt.nextSibling);
|
top = backup.offsetTop;
|
}
|
return {top: top, left: left};
|
}
|
function localCoords(pos, inLineWrap) {
|
var x, lh = textHeight(), y = lh * (heightAtLine(doc, pos.line) - (inLineWrap ? displayOffset : 0));
|
if (pos.ch == 0) x = 0;
|
else {
|
var sp = measureLine(getLine(pos.line), pos.ch);
|
x = sp.left;
|
if (options.lineWrapping) y += Math.max(0, sp.top);
|
}
|
return {x: x, y: y, yBot: y + lh};
|
}
|
// Coords must be lineSpace-local
|
function coordsChar(x, y) {
|
if (y < 0) y = 0;
|
var th = textHeight(), cw = charWidth(), heightPos = displayOffset + Math.floor(y / th);
|
var lineNo = lineAtHeight(doc, heightPos);
|
if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc.size - 1).text.length};
|
var lineObj = getLine(lineNo), text = lineObj.text;
|
var tw = options.lineWrapping, innerOff = tw ? heightPos - heightAtLine(doc, lineNo) : 0;
|
if (x <= 0 && innerOff == 0) return {line: lineNo, ch: 0};
|
function getX(len) {
|
var sp = measureLine(lineObj, len);
|
if (tw) {
|
var off = Math.round(sp.top / th);
|
return Math.max(0, sp.left + (off - innerOff) * scroller.clientWidth);
|
}
|
return sp.left;
|
}
|
var from = 0, fromX = 0, to = text.length, toX;
|
// Guess a suitable upper bound for our search.
|
var estimated = Math.min(to, Math.ceil((x + innerOff * scroller.clientWidth * .9) / cw));
|
for (;;) {
|
var estX = getX(estimated);
|
if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
|
else {toX = estX; to = estimated; break;}
|
}
|
if (x > toX) return {line: lineNo, ch: to};
|
// Try to guess a suitable lower bound as well.
|
estimated = Math.floor(to * 0.8); estX = getX(estimated);
|
if (estX < x) {from = estimated; fromX = estX;}
|
// Do a binary search between these bounds.
|
for (;;) {
|
if (to - from <= 1) return {line: lineNo, ch: (toX - x > x - fromX) ? from : to};
|
var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
|
if (middleX > x) {to = middle; toX = middleX;}
|
else {from = middle; fromX = middleX;}
|
}
|
}
|
function pageCoords(pos) {
|
var local = localCoords(pos, true), off = eltOffset(lineSpace);
|
return {x: off.left + local.x, y: off.top + local.y, yBot: off.top + local.yBot};
|
}
|
|
var cachedHeight, cachedHeightFor, measureText;
|
function textHeight() {
|
if (measureText == null) {
|
measureText = "<pre>";
|
for (var i = 0; i < 49; ++i) measureText += "x<br/>";
|
measureText += "x</pre>";
|
}
|
var offsetHeight = lineDiv.clientHeight;
|
if (offsetHeight == cachedHeightFor) return cachedHeight;
|
cachedHeightFor = offsetHeight;
|
measure.innerHTML = measureText;
|
cachedHeight = measure.firstChild.offsetHeight / 50 || 1;
|
measure.innerHTML = "";
|
return cachedHeight;
|
}
|
var cachedWidth, cachedWidthFor = 0;
|
function charWidth() {
|
if (scroller.clientWidth == cachedWidthFor) return cachedWidth;
|
cachedWidthFor = scroller.clientWidth;
|
return (cachedWidth = stringWidth("x"));
|
}
|
function paddingTop() {return lineSpace.offsetTop;}
|
function paddingLeft() {return lineSpace.offsetLeft;}
|
|
function posFromMouse(e, liberal) {
|
var offW = eltOffset(scroller, true), x, y;
|
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
|
try { x = e.clientX; y = e.clientY; } catch (e) { return null; }
|
// This is a mess of a heuristic to try and determine whether a
|
// scroll-bar was clicked or not, and to return null if one was
|
// (and !liberal).
|
if (!liberal && (x - offW.left > scroller.clientWidth || y - offW.top > scroller.clientHeight))
|
return null;
|
var offL = eltOffset(lineSpace, true);
|
return coordsChar(x - offL.left, y - offL.top);
|
}
|
function onContextMenu(e) {
|
var pos = posFromMouse(e);
|
if (!pos || window.opera) return; // Opera is difficult.
|
if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
|
operation(setCursor)(pos.line, pos.ch);
|
|
var oldCSS = input.style.cssText;
|
inputDiv.style.position = "absolute";
|
input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
|
"px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; " +
|
"border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
|
leaveInputAlone = true;
|
var val = input.value = getSelection();
|
focusInput();
|
input.select();
|
function rehide() {
|
var newVal = splitLines(input.value).join("\n");
|
if (newVal != val) operation(replaceSelection)(newVal, "end");
|
inputDiv.style.position = "relative";
|
input.style.cssText = oldCSS;
|
leaveInputAlone = false;
|
resetInput(true);
|
slowPoll();
|
}
|
|
if (gecko) {
|
e_stop(e);
|
var mouseup = connect(window, "mouseup", function() {
|
mouseup();
|
setTimeout(rehide, 20);
|
}, true);
|
}
|
else {
|
setTimeout(rehide, 50);
|
}
|
}
|
|
// Cursor-blinking
|
function restartBlink() {
|
clearInterval(blinker);
|
var on = true;
|
cursor.style.visibility = "";
|
blinker = setInterval(function() {
|
cursor.style.visibility = (on = !on) ? "" : "hidden";
|
}, 650);
|
}
|
|
var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
|
function matchBrackets(autoclear) {
|
var head = sel.inverted ? sel.from : sel.to, line = getLine(head.line), pos = head.ch - 1;
|
var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
|
if (!match) return;
|
var ch = match.charAt(0), forward = match.charAt(1) == ">", d = forward ? 1 : -1, st = line.styles;
|
for (var off = pos + 1, i = 0, e = st.length; i < e; i+=2)
|
if ((off -= st[i].length) <= 0) {var style = st[i+1]; break;}
|
|
var stack = [line.text.charAt(pos)], re = /[(){}[\]]/;
|
function scan(line, from, to) {
|
if (!line.text) return;
|
var st = line.styles, pos = forward ? 0 : line.text.length - 1, cur;
|
for (var i = forward ? 0 : st.length - 2, e = forward ? st.length : -2; i != e; i += 2*d) {
|
var text = st[i];
|
if (st[i+1] != null && st[i+1] != style) {pos += d * text.length; continue;}
|
for (var j = forward ? 0 : text.length - 1, te = forward ? text.length : -1; j != te; j += d, pos+=d) {
|
if (pos >= from && pos < to && re.test(cur = text.charAt(j))) {
|
var match = matching[cur];
|
if (match.charAt(1) == ">" == forward) stack.push(cur);
|
else if (stack.pop() != match.charAt(0)) return {pos: pos, match: false};
|
else if (!stack.length) return {pos: pos, match: true};
|
}
|
}
|
}
|
}
|
for (var i = head.line, e = forward ? Math.min(i + 100, doc.size) : Math.max(-1, i - 100); i != e; i+=d) {
|
var line = getLine(i), first = i == head.line;
|
var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length);
|
if (found) break;
|
}
|
if (!found) found = {pos: null, match: false};
|
var style = found.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
|
var one = markText({line: head.line, ch: pos}, {line: head.line, ch: pos+1}, style),
|
two = found.pos != null && markText({line: i, ch: found.pos}, {line: i, ch: found.pos + 1}, style);
|
var clear = operation(function(){one.clear(); two && two.clear();});
|
if (autoclear) setTimeout(clear, 800);
|
else bracketHighlighted = clear;
|
}
|
|
// Finds the line to start with when starting a parse. Tries to
|
// find a line with a stateAfter, so that it can start with a
|
// valid state. If that fails, it returns the line with the
|
// smallest indentation, which tends to need the least context to
|
// parse correctly.
|
function findStartLine(n) {
|
var minindent, minline;
|
for (var search = n, lim = n - 40; search > lim; --search) {
|
if (search == 0) return 0;
|
var line = getLine(search-1);
|
if (line.stateAfter) return search;
|
var indented = line.indentation(options.tabSize);
|
if (minline == null || minindent > indented) {
|
minline = search - 1;
|
minindent = indented;
|
}
|
}
|
return minline;
|
}
|
function getStateBefore(n) {
|
var start = findStartLine(n), state = start && getLine(start-1).stateAfter;
|
if (!state) state = startState(mode);
|
else state = copyState(mode, state);
|
doc.iter(start, n, function(line) {
|
line.highlight(mode, state, options.tabSize);
|
line.stateAfter = copyState(mode, state);
|
});
|
if (start < n) changes.push({from: start, to: n});
|
if (n < doc.size && !getLine(n).stateAfter) work.push(n);
|
return state;
|
}
|
function highlightLines(start, end) {
|
var state = getStateBefore(start);
|
doc.iter(start, end, function(line) {
|
line.highlight(mode, state, options.tabSize);
|
line.stateAfter = copyState(mode, state);
|
});
|
}
|
function highlightWorker() {
|
var end = +new Date + options.workTime;
|
var foundWork = work.length;
|
while (work.length) {
|
if (!getLine(showingFrom).stateAfter) var task = showingFrom;
|
else var task = work.pop();
|
if (task >= doc.size) continue;
|
var start = findStartLine(task), state = start && getLine(start-1).stateAfter;
|
if (state) state = copyState(mode, state);
|
else state = startState(mode);
|
|
var unchanged = 0, compare = mode.compareStates, realChange = false,
|
i = start, bail = false;
|
doc.iter(i, doc.size, function(line) {
|
var hadState = line.stateAfter;
|
if (+new Date > end) {
|
work.push(i);
|
startWorker(options.workDelay);
|
if (realChange) changes.push({from: task, to: i + 1});
|
return (bail = true);
|
}
|
var changed = line.highlight(mode, state, options.tabSize);
|
if (changed) realChange = true;
|
line.stateAfter = copyState(mode, state);
|
if (compare) {
|
if (hadState && compare(hadState, state)) return true;
|
} else {
|
if (changed !== false || !hadState) unchanged = 0;
|
else if (++unchanged > 3 && (!mode.indent || mode.indent(hadState, "") == mode.indent(state, "")))
|
return true;
|
}
|
++i;
|
});
|
if (bail) return;
|
if (realChange) changes.push({from: task, to: i + 1});
|
}
|
if (foundWork && options.onHighlightComplete)
|
options.onHighlightComplete(instance);
|
}
|
function startWorker(time) {
|
if (!work.length) return;
|
highlight.set(time, operation(highlightWorker));
|
}
|
|
// Operations are used to wrap changes in such a way that each
|
// change won't have to update the cursor and display (which would
|
// be awkward, slow, and error-prone), but instead updates are
|
// batched and then all combined and executed at once.
|
function startOperation() {
|
updateInput = userSelChange = textChanged = null;
|
changes = []; selectionChanged = false; callbacks = [];
|
}
|
function endOperation() {
|
var reScroll = false, updated;
|
if (selectionChanged) reScroll = !scrollCursorIntoView();
|
if (changes.length) updated = updateDisplay(changes, true);
|
else {
|
if (selectionChanged) updateCursor();
|
if (gutterDirty) updateGutter();
|
}
|
if (reScroll) scrollCursorIntoView();
|
if (selectionChanged) {scrollEditorIntoView(); restartBlink();}
|
|
if (focused && !leaveInputAlone &&
|
(updateInput === true || (updateInput !== false && selectionChanged)))
|
resetInput(userSelChange);
|
|
if (selectionChanged && options.matchBrackets)
|
setTimeout(operation(function() {
|
if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;}
|
if (posEq(sel.from, sel.to)) matchBrackets(false);
|
}), 20);
|
var tc = textChanged, cbs = callbacks; // these can be reset by callbacks
|
if (selectionChanged && options.onCursorActivity)
|
options.onCursorActivity(instance);
|
if (tc && options.onChange && instance)
|
options.onChange(instance, tc);
|
for (var i = 0; i < cbs.length; ++i) cbs[i](instance);
|
if (updated && options.onUpdate) options.onUpdate(instance);
|
}
|
var nestedOperation = 0;
|
function operation(f) {
|
return function() {
|
if (!nestedOperation++) startOperation();
|
try {var result = f.apply(this, arguments);}
|
finally {if (!--nestedOperation) endOperation();}
|
return result;
|
};
|
}
|
|
for (var ext in extensions)
|
if (extensions.propertyIsEnumerable(ext) &&
|
!instance.propertyIsEnumerable(ext))
|
instance[ext] = extensions[ext];
|
return instance;
|
} // (end of function CodeMirror)
|
|
// The default configuration options.
|
CodeMirror.defaults = {
|
value: "",
|
mode: null,
|
theme: "default",
|
indentUnit: 2,
|
indentWithTabs: false,
|
tabSize: 4,
|
keyMap: "default",
|
extraKeys: null,
|
electricChars: true,
|
onKeyEvent: null,
|
lineWrapping: false,
|
lineNumbers: false,
|
gutter: false,
|
fixedGutter: false,
|
firstLineNumber: 1,
|
readOnly: false,
|
onChange: null,
|
onCursorActivity: null,
|
onGutterClick: null,
|
onHighlightComplete: null,
|
onUpdate: null,
|
onFocus: null, onBlur: null, onScroll: null,
|
matchBrackets: false,
|
workTime: 100,
|
workDelay: 200,
|
pollInterval: 100,
|
undoDepth: 40,
|
tabindex: null,
|
document: window.document
|
};
|
|
var mac = /Mac/.test(navigator.platform);
|
var win = /Win/.test(navigator.platform);
|
|
// Known modes, by name and by MIME
|
var modes = {}, mimeModes = {};
|
CodeMirror.defineMode = function(name, mode) {
|
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
|
modes[name] = mode;
|
};
|
CodeMirror.defineMIME = function(mime, spec) {
|
mimeModes[mime] = spec;
|
};
|
CodeMirror.getMode = function(options, spec) {
|
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
|
spec = mimeModes[spec];
|
if (typeof spec == "string")
|
var mname = spec, config = {};
|
else if (spec != null)
|
var mname = spec.name, config = spec;
|
var mfactory = modes[mname];
|
if (!mfactory) {
|
if (window.console) console.warn("No mode " + mname + " found, falling back to plain text.");
|
return CodeMirror.getMode(options, "text/plain");
|
}
|
return mfactory(options, config || {});
|
};
|
CodeMirror.listModes = function() {
|
var list = [];
|
for (var m in modes)
|
if (modes.propertyIsEnumerable(m)) list.push(m);
|
return list;
|
};
|
CodeMirror.listMIMEs = function() {
|
var list = [];
|
for (var m in mimeModes)
|
if (mimeModes.propertyIsEnumerable(m)) list.push({mime: m, mode: mimeModes[m]});
|
return list;
|
};
|
|
var extensions = CodeMirror.extensions = {};
|
CodeMirror.defineExtension = function(name, func) {
|
extensions[name] = func;
|
};
|
|
var commands = CodeMirror.commands = {
|
selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});},
|
killLine: function(cm) {
|
var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);
|
if (!sel && cm.getLine(from.line).length == from.ch) cm.replaceRange("", from, {line: from.line + 1, ch: 0});
|
else cm.replaceRange("", from, sel ? to : {line: from.line});
|
},
|
deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange("", {line: l, ch: 0}, {line: l});},
|
undo: function(cm) {cm.undo();},
|
redo: function(cm) {cm.redo();},
|
goDocStart: function(cm) {cm.setCursor(0, 0, true);},
|
goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);},
|
goLineStart: function(cm) {cm.setCursor(cm.getCursor().line, 0, true);},
|
goLineStartSmart: function(cm) {
|
var cur = cm.getCursor();
|
var text = cm.getLine(cur.line), firstNonWS = Math.max(0, text.search(/\S/));
|
cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true);
|
},
|
goLineEnd: function(cm) {cm.setSelection({line: cm.getCursor().line}, null, true);},
|
goLineUp: function(cm) {cm.moveV(-1, "line");},
|
goLineDown: function(cm) {cm.moveV(1, "line");},
|
goPageUp: function(cm) {cm.moveV(-1, "page");},
|
goPageDown: function(cm) {cm.moveV(1, "page");},
|
goCharLeft: function(cm) {cm.moveH(-1, "char");},
|
goCharRight: function(cm) {cm.moveH(1, "char");},
|
goColumnLeft: function(cm) {cm.moveH(-1, "column");},
|
goColumnRight: function(cm) {cm.moveH(1, "column");},
|
goWordLeft: function(cm) {cm.moveH(-1, "word");},
|
goWordRight: function(cm) {cm.moveH(1, "word");},
|
delCharLeft: function(cm) {cm.deleteH(-1, "char");},
|
delCharRight: function(cm) {cm.deleteH(1, "char");},
|
delWordLeft: function(cm) {cm.deleteH(-1, "word");},
|
delWordRight: function(cm) {cm.deleteH(1, "word");},
|
indentAuto: function(cm) {cm.indentSelection("smart");},
|
indentMore: function(cm) {cm.indentSelection("add");},
|
indentLess: function(cm) {cm.indentSelection("subtract");},
|
insertTab: function(cm) {cm.replaceSelection("\t", "end");},
|
transposeChars: function(cm) {
|
var cur = cm.getCursor(), line = cm.getLine(cur.line);
|
if (cur.ch > 0 && cur.ch < line.length - 1)
|
cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),
|
{line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1});
|
},
|
newlineAndIndent: function(cm) {
|
cm.replaceSelection("\n", "end");
|
cm.indentLine(cm.getCursor().line);
|
},
|
toggleOverwrite: function(cm) {cm.toggleOverwrite();}
|
};
|
|
var keyMap = CodeMirror.keyMap = {};
|
keyMap.basic = {
|
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
|
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
|
"Delete": "delCharRight", "Backspace": "delCharLeft", "Tab": "indentMore", "Shift-Tab": "indentLess",
|
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite"
|
};
|
// Note that the save and find-related commands aren't defined by
|
// default. Unknown commands are simply ignored.
|
keyMap.pcDefault = {
|
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
|
"Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
|
"Ctrl-Left": "goWordLeft", "Ctrl-Right": "goWordRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
|
"Ctrl-Backspace": "delWordLeft", "Ctrl-Delete": "delWordRight", "Ctrl-S": "save", "Ctrl-F": "find",
|
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
|
fallthrough: "basic"
|
};
|
keyMap.macDefault = {
|
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
|
"Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goWordLeft",
|
"Alt-Right": "goWordRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delWordLeft",
|
"Ctrl-Alt-Backspace": "delWordRight", "Alt-Delete": "delWordRight", "Cmd-S": "save", "Cmd-F": "find",
|
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
|
fallthrough: ["basic", "emacsy"]
|
};
|
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
|
keyMap.emacsy = {
|
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
|
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
|
"Ctrl-V": "goPageUp", "Shift-Ctrl-V": "goPageDown", "Ctrl-D": "delCharRight", "Ctrl-H": "delCharLeft",
|
"Alt-D": "delWordRight", "Alt-Backspace": "delWordLeft", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
|
};
|
|
function lookupKey(name, extraMap, map) {
|
function lookup(name, map, ft) {
|
var found = map[name];
|
if (found != null) return found;
|
if (ft == null) ft = map.fallthrough;
|
if (ft == null) return map.catchall;
|
if (typeof ft == "string") return lookup(name, keyMap[ft]);
|
for (var i = 0, e = ft.length; i < e; ++i) {
|
found = lookup(name, keyMap[ft[i]]);
|
if (found != null) return found;
|
}
|
return null;
|
}
|
return extraMap ? lookup(name, extraMap, map) : lookup(name, keyMap[map]);
|
}
|
function isModifierKey(event) {
|
var name = keyNames[event.keyCode];
|
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
|
}
|
|
CodeMirror.fromTextArea = function(textarea, options) {
|
if (!options) options = {};
|
options.value = textarea.value;
|
if (!options.tabindex && textarea.tabindex)
|
options.tabindex = textarea.tabindex;
|
|
function save() {textarea.value = instance.getValue();}
|
if (textarea.form) {
|
// Deplorable hack to make the submit method do the right thing.
|
var rmSubmit = connect(textarea.form, "submit", save, true);
|
if (typeof textarea.form.submit == "function") {
|
var realSubmit = textarea.form.submit;
|
function wrappedSubmit() {
|
save();
|
textarea.form.submit = realSubmit;
|
textarea.form.submit();
|
textarea.form.submit = wrappedSubmit;
|
}
|
textarea.form.submit = wrappedSubmit;
|
}
|
}
|
|
textarea.style.display = "none";
|
var instance = CodeMirror(function(node) {
|
textarea.parentNode.insertBefore(node, textarea.nextSibling);
|
}, options);
|
instance.save = save;
|
instance.getTextArea = function() { return textarea; };
|
instance.toTextArea = function() {
|
save();
|
textarea.parentNode.removeChild(instance.getWrapperElement());
|
textarea.style.display = "";
|
if (textarea.form) {
|
rmSubmit();
|
if (typeof textarea.form.submit == "function")
|
textarea.form.submit = realSubmit;
|
}
|
};
|
return instance;
|
};
|
|
// Utility functions for working with state. Exported because modes
|
// sometimes need to do this.
|
function copyState(mode, state) {
|
if (state === true) return state;
|
if (mode.copyState) return mode.copyState(state);
|
var nstate = {};
|
for (var n in state) {
|
var val = state[n];
|
if (val instanceof Array) val = val.concat([]);
|
nstate[n] = val;
|
}
|
return nstate;
|
}
|
CodeMirror.copyState = copyState;
|
function startState(mode, a1, a2) {
|
return mode.startState ? mode.startState(a1, a2) : true;
|
}
|
CodeMirror.startState = startState;
|
|
// The character stream used by a mode's parser.
|
function StringStream(string, tabSize) {
|
this.pos = this.start = 0;
|
this.string = string;
|
this.tabSize = tabSize || 8;
|
}
|
StringStream.prototype = {
|
eol: function() {return this.pos >= this.string.length;},
|
sol: function() {return this.pos == 0;},
|
peek: function() {return this.string.charAt(this.pos);},
|
next: function() {
|
if (this.pos < this.string.length)
|
return this.string.charAt(this.pos++);
|
},
|
eat: function(match) {
|
var ch = this.string.charAt(this.pos);
|
if (typeof match == "string") var ok = ch == match;
|
else var ok = ch && (match.test ? match.test(ch) : match(ch));
|
if (ok) {++this.pos; return ch;}
|
},
|
eatWhile: function(match) {
|
var start = this.pos;
|
while (this.eat(match)){}
|
return this.pos > start;
|
},
|
eatSpace: function() {
|
var start = this.pos;
|
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
|
return this.pos > start;
|
},
|
skipToEnd: function() {this.pos = this.string.length;},
|
skipTo: function(ch) {
|
var found = this.string.indexOf(ch, this.pos);
|
if (found > -1) {this.pos = found; return true;}
|
},
|
backUp: function(n) {this.pos -= n;},
|
column: function() {return countColumn(this.string, this.start, this.tabSize);},
|
indentation: function() {return countColumn(this.string, null, this.tabSize);},
|
match: function(pattern, consume, caseInsensitive) {
|
if (typeof pattern == "string") {
|
function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
|
if (cased(this.string).indexOf(cased(pattern), this.pos) == this.pos) {
|
if (consume !== false) this.pos += pattern.length;
|
return true;
|
}
|
}
|
else {
|
var match = this.string.slice(this.pos).match(pattern);
|
if (match && consume !== false) this.pos += match[0].length;
|
return match;
|
}
|
},
|
current: function(){return this.string.slice(this.start, this.pos);}
|
};
|
CodeMirror.StringStream = StringStream;
|
|
function MarkedText(from, to, className, set) {
|
this.from = from; this.to = to; this.style = className; this.set = set;
|
}
|
MarkedText.prototype = {
|
attach: function(line) { this.set.push(line); },
|
detach: function(line) {
|
var ix = indexOf(this.set, line);
|
if (ix > -1) this.set.splice(ix, 1);
|
},
|
split: function(pos, lenBefore) {
|
if (this.to <= pos && this.to != null) return null;
|
var from = this.from < pos || this.from == null ? null : this.from - pos + lenBefore;
|
var to = this.to == null ? null : this.to - pos + lenBefore;
|
return new MarkedText(from, to, this.style, this.set);
|
},
|
dup: function() { return new MarkedText(null, null, this.style, this.set); },
|
clipTo: function(fromOpen, from, toOpen, to, diff) {
|
if (this.from != null && this.from >= from)
|
this.from = Math.max(to, this.from) + diff;
|
if (this.to != null && this.to > from)
|
this.to = to < this.to ? this.to + diff : from;
|
if (fromOpen && to > this.from && (to < this.to || this.to == null))
|
this.from = null;
|
if (toOpen && (from < this.to || this.to == null) && (from > this.from || this.from == null))
|
this.to = null;
|
},
|
isDead: function() { return this.from != null && this.to != null && this.from >= this.to; },
|
sameSet: function(x) { return this.set == x.set; }
|
};
|
|
function Bookmark(pos) {
|
this.from = pos; this.to = pos; this.line = null;
|
}
|
Bookmark.prototype = {
|
attach: function(line) { this.line = line; },
|
detach: function(line) { if (this.line == line) this.line = null; },
|
split: function(pos, lenBefore) {
|
if (pos < this.from) {
|
this.from = this.to = (this.from - pos) + lenBefore;
|
return this;
|
}
|
},
|
isDead: function() { return this.from > this.to; },
|
clipTo: function(fromOpen, from, toOpen, to, diff) {
|
if ((fromOpen || from < this.from) && (toOpen || to > this.to)) {
|
this.from = 0; this.to = -1;
|
} else if (this.from > from) {
|
this.from = this.to = Math.max(to, this.from) + diff;
|
}
|
},
|
sameSet: function(x) { return false; },
|
find: function() {
|
if (!this.line || !this.line.parent) return null;
|
return {line: lineNo(this.line), ch: this.from};
|
},
|
clear: function() {
|
if (this.line) {
|
var found = indexOf(this.line.marked, this);
|
if (found != -1) this.line.marked.splice(found, 1);
|
this.line = null;
|
}
|
}
|
};
|
|
// Line objects. These hold state related to a line, including
|
// highlighting info (the styles array).
|
function Line(text, styles) {
|
this.styles = styles || [text, null];
|
this.text = text;
|
this.height = 1;
|
this.marked = this.gutterMarker = this.className = this.handlers = null;
|
this.stateAfter = this.parent = this.hidden = null;
|
}
|
Line.inheritMarks = function(text, orig) {
|
var ln = new Line(text), mk = orig && orig.marked;
|
if (mk) {
|
for (var i = 0; i < mk.length; ++i) {
|
if (mk[i].to == null && mk[i].style) {
|
var newmk = ln.marked || (ln.marked = []), mark = mk[i];
|
var nmark = mark.dup(); newmk.push(nmark); nmark.attach(ln);
|
}
|
}
|
}
|
return ln;
|
}
|
Line.prototype = {
|
// Replace a piece of a line, keeping the styles around it intact.
|
replace: function(from, to_, text) {
|
var st = [], mk = this.marked, to = to_ == null ? this.text.length : to_;
|
copyStyles(0, from, this.styles, st);
|
if (text) st.push(text, null);
|
copyStyles(to, this.text.length, this.styles, st);
|
this.styles = st;
|
this.text = this.text.slice(0, from) + text + this.text.slice(to);
|
this.stateAfter = null;
|
if (mk) {
|
var diff = text.length - (to - from);
|
for (var i = 0, mark = mk[i]; i < mk.length; ++i) {
|
mark.clipTo(from == null, from || 0, to_ == null, to, diff);
|
if (mark.isDead()) {mark.detach(this); mk.splice(i--, 1);}
|
}
|
}
|
},
|
// Split a part off a line, keeping styles and markers intact.
|
split: function(pos, textBefore) {
|
var st = [textBefore, null], mk = this.marked;
|
copyStyles(pos, this.text.length, this.styles, st);
|
var taken = new Line(textBefore + this.text.slice(pos), st);
|
if (mk) {
|
for (var i = 0; i < mk.length; ++i) {
|
var mark = mk[i];
|
var newmark = mark.split(pos, textBefore.length);
|
if (newmark) {
|
if (!taken.marked) taken.marked = [];
|
taken.marked.push(newmark); newmark.attach(taken);
|
}
|
}
|
}
|
return taken;
|
},
|
append: function(line) {
|
var mylen = this.text.length, mk = line.marked, mymk = this.marked;
|
this.text += line.text;
|
copyStyles(0, line.text.length, line.styles, this.styles);
|
if (mymk) {
|
for (var i = 0; i < mymk.length; ++i)
|
if (mymk[i].to == null) mymk[i].to = mylen;
|
}
|
if (mk && mk.length) {
|
if (!mymk) this.marked = mymk = [];
|
outer: for (var i = 0; i < mk.length; ++i) {
|
var mark = mk[i];
|
if (!mark.from) {
|
for (var j = 0; j < mymk.length; ++j) {
|
var mymark = mymk[j];
|
if (mymark.to == mylen && mymark.sameSet(mark)) {
|
mymark.to = mark.to == null ? null : mark.to + mylen;
|
if (mymark.isDead()) {
|
mymark.detach(this);
|
mk.splice(i--, 1);
|
}
|
continue outer;
|
}
|
}
|
}
|
mymk.push(mark);
|
mark.attach(this);
|
mark.from += mylen;
|
if (mark.to != null) mark.to += mylen;
|
}
|
}
|
},
|
fixMarkEnds: function(other) {
|
var mk = this.marked, omk = other.marked;
|
if (!mk) return;
|
for (var i = 0; i < mk.length; ++i) {
|
var mark = mk[i], close = mark.to == null;
|
if (close && omk) {
|
for (var j = 0; j < omk.length; ++j)
|
if (omk[j].sameSet(mark)) {close = false; break;}
|
}
|
if (close) mark.to = this.text.length;
|
}
|
},
|
fixMarkStarts: function() {
|
var mk = this.marked;
|
if (!mk) return;
|
for (var i = 0; i < mk.length; ++i)
|
if (mk[i].from == null) mk[i].from = 0;
|
},
|
addMark: function(mark) {
|
mark.attach(this);
|
if (this.marked == null) this.marked = [];
|
this.marked.push(mark);
|
this.marked.sort(function(a, b){return (a.from || 0) - (b.from || 0);});
|
},
|
// Run the given mode's parser over a line, update the styles
|
// array, which contains alternating fragments of text and CSS
|
// classes.
|
highlight: function(mode, state, tabSize) {
|
var stream = new StringStream(this.text, tabSize), st = this.styles, pos = 0;
|
var changed = false, curWord = st[0], prevWord;
|
if (this.text == "" && mode.blankLine) mode.blankLine(state);
|
while (!stream.eol()) {
|
var style = mode.token(stream, state);
|
var substr = this.text.slice(stream.start, stream.pos);
|
stream.start = stream.pos;
|
if (pos && st[pos-1] == style)
|
st[pos-2] += substr;
|
else if (substr) {
|
if (!changed && (st[pos+1] != style || (pos && st[pos-2] != prevWord))) changed = true;
|
st[pos++] = substr; st[pos++] = style;
|
prevWord = curWord; curWord = st[pos];
|
}
|
// Give up when line is ridiculously long
|
if (stream.pos > 5000) {
|
st[pos++] = this.text.slice(stream.pos); st[pos++] = null;
|
break;
|
}
|
}
|
if (st.length != pos) {st.length = pos; changed = true;}
|
if (pos && st[pos-2] != prevWord) changed = true;
|
// Short lines with simple highlights return null, and are
|
// counted as changed by the driver because they are likely to
|
// highlight the same way in various contexts.
|
return changed || (st.length < 5 && this.text.length < 10 ? null : false);
|
},
|
// Fetch the parser token for a given character. Useful for hacks
|
// that want to inspect the mode state (say, for completion).
|
getTokenAt: function(mode, state, ch) {
|
var txt = this.text, stream = new StringStream(txt);
|
while (stream.pos < ch && !stream.eol()) {
|
stream.start = stream.pos;
|
var style = mode.token(stream, state);
|
}
|
return {start: stream.start,
|
end: stream.pos,
|
string: stream.current(),
|
className: style || null,
|
state: state};
|
},
|
indentation: function(tabSize) {return countColumn(this.text, null, tabSize);},
|
// Produces an HTML fragment for the line, taking selection,
|
// marking, and highlighting into account.
|
getHTML: function(sfrom, sto, includePre, tabText, endAt) {
|
var html = [], first = true;
|
if (includePre)
|
html.push(this.className ? '<pre class="' + this.className + '">': "<pre>");
|
function span(text, style) {
|
if (!text) return;
|
// Work around a bug where, in some compat modes, IE ignores leading spaces
|
if (first && ie && text.charAt(0) == " ") text = "\u00a0" + text.slice(1);
|
first = false;
|
if (style) html.push('<span class="', style, '">', htmlEscape(text).replace(/\t/g, tabText), "</span>");
|
else html.push(htmlEscape(text).replace(/\t/g, tabText));
|
}
|
var st = this.styles, allText = this.text, marked = this.marked;
|
if (sfrom == sto) sfrom = null;
|
var len = allText.length;
|
if (endAt != null) len = Math.min(endAt, len);
|
|
if (!allText && endAt == null)
|
span(" ", sfrom != null && sto == null ? "CodeMirror-selected" : null);
|
else if (!marked && sfrom == null)
|
for (var i = 0, ch = 0; ch < len; i+=2) {
|
var str = st[i], style = st[i+1], l = str.length;
|
if (ch + l > len) str = str.slice(0, len - ch);
|
ch += l;
|
span(str, style && "cm-" + style);
|
}
|
else {
|
var pos = 0, i = 0, text = "", style, sg = 0;
|
var markpos = -1, mark = null;
|
function nextMark() {
|
if (marked) {
|
markpos += 1;
|
mark = (markpos < marked.length) ? marked[markpos] : null;
|
}
|
}
|
nextMark();
|
while (pos < len) {
|
var upto = len;
|
var extraStyle = "";
|
if (sfrom != null) {
|
if (sfrom > pos) upto = sfrom;
|
else if (sto == null || sto > pos) {
|
extraStyle = " CodeMirror-selected";
|
if (sto != null) upto = Math.min(upto, sto);
|
}
|
}
|
while (mark && mark.to != null && mark.to <= pos) nextMark();
|
if (mark) {
|
if (mark.from > pos) upto = Math.min(upto, mark.from);
|
else {
|
extraStyle += " " + mark.style;
|
if (mark.to != null) upto = Math.min(upto, mark.to);
|
}
|
}
|
for (;;) {
|
var end = pos + text.length;
|
var appliedStyle = style;
|
if (extraStyle) appliedStyle = style ? style + extraStyle : extraStyle;
|
span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
|
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
|
pos = end;
|
text = st[i++]; style = "cm-" + st[i++];
|
}
|
}
|
if (sfrom != null && sto == null) span(" ", "CodeMirror-selected");
|
}
|
if (includePre) html.push("</pre>");
|
return html.join("");
|
},
|
cleanUp: function() {
|
this.parent = null;
|
if (this.marked)
|
for (var i = 0, e = this.marked.length; i < e; ++i) this.marked[i].detach(this);
|
}
|
};
|
// Utility used by replace and split above
|
function copyStyles(from, to, source, dest) {
|
for (var i = 0, pos = 0, state = 0; pos < to; i+=2) {
|
var part = source[i], end = pos + part.length;
|
if (state == 0) {
|
if (end > from) dest.push(part.slice(from - pos, Math.min(part.length, to - pos)), source[i+1]);
|
if (end >= from) state = 1;
|
}
|
else if (state == 1) {
|
if (end > to) dest.push(part.slice(0, to - pos), source[i+1]);
|
else dest.push(part, source[i+1]);
|
}
|
pos = end;
|
}
|
}
|
|
// Data structure that holds the sequence of lines.
|
function LeafChunk(lines) {
|
this.lines = lines;
|
this.parent = null;
|
for (var i = 0, e = lines.length, height = 0; i < e; ++i) {
|
lines[i].parent = this;
|
height += lines[i].height;
|
}
|
this.height = height;
|
}
|
LeafChunk.prototype = {
|
chunkSize: function() { return this.lines.length; },
|
remove: function(at, n, callbacks) {
|
for (var i = at, e = at + n; i < e; ++i) {
|
var line = this.lines[i];
|
this.height -= line.height;
|
line.cleanUp();
|
if (line.handlers)
|
for (var j = 0; j < line.handlers.length; ++j) callbacks.push(line.handlers[j]);
|
}
|
this.lines.splice(at, n);
|
},
|
collapse: function(lines) {
|
lines.splice.apply(lines, [lines.length, 0].concat(this.lines));
|
},
|
insertHeight: function(at, lines, height) {
|
this.height += height;
|
this.lines.splice.apply(this.lines, [at, 0].concat(lines));
|
for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;
|
},
|
iterN: function(at, n, op) {
|
for (var e = at + n; at < e; ++at)
|
if (op(this.lines[at])) return true;
|
}
|
};
|
function BranchChunk(children) {
|
this.children = children;
|
var size = 0, height = 0;
|
for (var i = 0, e = children.length; i < e; ++i) {
|
var ch = children[i];
|
size += ch.chunkSize(); height += ch.height;
|
ch.parent = this;
|
}
|
this.size = size;
|
this.height = height;
|
this.parent = null;
|
}
|
BranchChunk.prototype = {
|
chunkSize: function() { return this.size; },
|
remove: function(at, n, callbacks) {
|
this.size -= n;
|
for (var i = 0; i < this.children.length; ++i) {
|
var child = this.children[i], sz = child.chunkSize();
|
if (at < sz) {
|
var rm = Math.min(n, sz - at), oldHeight = child.height;
|
child.remove(at, rm, callbacks);
|
this.height -= oldHeight - child.height;
|
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
|
if ((n -= rm) == 0) break;
|
at = 0;
|
} else at -= sz;
|
}
|
if (this.size - n < 25) {
|
var lines = [];
|
this.collapse(lines);
|
this.children = [new LeafChunk(lines)];
|
}
|
},
|
collapse: function(lines) {
|
for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);
|
},
|
insert: function(at, lines) {
|
var height = 0;
|
for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;
|
this.insertHeight(at, lines, height);
|
},
|
insertHeight: function(at, lines, height) {
|
this.size += lines.length;
|
this.height += height;
|
for (var i = 0, e = this.children.length; i < e; ++i) {
|
var child = this.children[i], sz = child.chunkSize();
|
if (at <= sz) {
|
child.insertHeight(at, lines, height);
|
if (child.lines && child.lines.length > 50) {
|
while (child.lines.length > 50) {
|
var spilled = child.lines.splice(child.lines.length - 25, 25);
|
var newleaf = new LeafChunk(spilled);
|
child.height -= newleaf.height;
|
this.children.splice(i + 1, 0, newleaf);
|
newleaf.parent = this;
|
}
|
this.maybeSpill();
|
}
|
break;
|
}
|
at -= sz;
|
}
|
},
|
maybeSpill: function() {
|
if (this.children.length <= 10) return;
|
var me = this;
|
do {
|
var spilled = me.children.splice(me.children.length - 5, 5);
|
var sibling = new BranchChunk(spilled);
|
if (!me.parent) { // Become the parent node
|
var copy = new BranchChunk(me.children);
|
copy.parent = me;
|
me.children = [copy, sibling];
|
me = copy;
|
} else {
|
me.size -= sibling.size;
|
me.height -= sibling.height;
|
var myIndex = indexOf(me.parent.children, me);
|
me.parent.children.splice(myIndex + 1, 0, sibling);
|
}
|
sibling.parent = me.parent;
|
} while (me.children.length > 10);
|
me.parent.maybeSpill();
|
},
|
iter: function(from, to, op) { this.iterN(from, to - from, op); },
|
iterN: function(at, n, op) {
|
for (var i = 0, e = this.children.length; i < e; ++i) {
|
var child = this.children[i], sz = child.chunkSize();
|
if (at < sz) {
|
var used = Math.min(n, sz - at);
|
if (child.iterN(at, used, op)) return true;
|
if ((n -= used) == 0) break;
|
at = 0;
|
} else at -= sz;
|
}
|
}
|
};
|
|
function getLineAt(chunk, n) {
|
while (!chunk.lines) {
|
for (var i = 0;; ++i) {
|
var child = chunk.children[i], sz = child.chunkSize();
|
if (n < sz) { chunk = child; break; }
|
n -= sz;
|
}
|
}
|
return chunk.lines[n];
|
}
|
function lineNo(line) {
|
if (line.parent == null) return null;
|
var cur = line.parent, no = indexOf(cur.lines, line);
|
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
|
for (var i = 0, e = chunk.children.length; ; ++i) {
|
if (chunk.children[i] == cur) break;
|
no += chunk.children[i].chunkSize();
|
}
|
}
|
return no;
|
}
|
function lineAtHeight(chunk, h) {
|
var n = 0;
|
outer: do {
|
for (var i = 0, e = chunk.children.length; i < e; ++i) {
|
var child = chunk.children[i], ch = child.height;
|
if (h < ch) { chunk = child; continue outer; }
|
h -= ch;
|
n += child.chunkSize();
|
}
|
return n;
|
} while (!chunk.lines);
|
for (var i = 0, e = chunk.lines.length; i < e; ++i) {
|
var line = chunk.lines[i], lh = line.height;
|
if (h < lh) break;
|
h -= lh;
|
}
|
return n + i;
|
}
|
function heightAtLine(chunk, n) {
|
var h = 0;
|
outer: do {
|
for (var i = 0, e = chunk.children.length; i < e; ++i) {
|
var child = chunk.children[i], sz = child.chunkSize();
|
if (n < sz) { chunk = child; continue outer; }
|
n -= sz;
|
h += child.height;
|
}
|
return h;
|
} while (!chunk.lines);
|
for (var i = 0; i < n; ++i) h += chunk.lines[i].height;
|
return h;
|
}
|
|
// The history object 'chunks' changes that are made close together
|
// and at almost the same time into bigger undoable units.
|
function History() {
|
this.time = 0;
|
this.done = []; this.undone = [];
|
}
|
History.prototype = {
|
addChange: function(start, added, old) {
|
this.undone.length = 0;
|
var time = +new Date, last = this.done[this.done.length - 1];
|
if (time - this.time > 400 || !last ||
|
last.start > start + added || last.start + last.added < start - last.added + last.old.length)
|
this.done.push({start: start, added: added, old: old});
|
else {
|
var oldoff = 0;
|
if (start < last.start) {
|
for (var i = last.start - start - 1; i >= 0; --i)
|
last.old.unshift(old[i]);
|
last.added += last.start - start;
|
last.start = start;
|
}
|
else if (last.start < start) {
|
oldoff = start - last.start;
|
added += oldoff;
|
}
|
for (var i = last.added - oldoff, e = old.length; i < e; ++i)
|
last.old.push(old[i]);
|
if (last.added < added) last.added = added;
|
}
|
this.time = time;
|
}
|
};
|
|
function stopMethod() {e_stop(this);}
|
// Ensure an event has a stop method.
|
function addStop(event) {
|
if (!event.stop) event.stop = stopMethod;
|
return event;
|
}
|
|
function e_preventDefault(e) {
|
if (e.preventDefault) e.preventDefault();
|
else e.returnValue = false;
|
}
|
function e_stopPropagation(e) {
|
if (e.stopPropagation) e.stopPropagation();
|
else e.cancelBubble = true;
|
}
|
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
|
CodeMirror.e_stop = e_stop;
|
CodeMirror.e_preventDefault = e_preventDefault;
|
CodeMirror.e_stopPropagation = e_stopPropagation;
|
|
function e_target(e) {return e.target || e.srcElement;}
|
function e_button(e) {
|
if (e.which) return e.which;
|
else if (e.button & 1) return 1;
|
else if (e.button & 2) return 3;
|
else if (e.button & 4) return 2;
|
}
|
|
// Event handler registration. If disconnect is true, it'll return a
|
// function that unregisters the handler.
|
function connect(node, type, handler, disconnect) {
|
if (typeof node.addEventListener == "function") {
|
node.addEventListener(type, handler, false);
|
if (disconnect) return function() {node.removeEventListener(type, handler, false);};
|
}
|
else {
|
var wrapHandler = function(event) {handler(event || window.event);};
|
node.attachEvent("on" + type, wrapHandler);
|
if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
|
}
|
}
|
CodeMirror.connect = connect;
|
|
function Delayed() {this.id = null;}
|
Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
|
|
// Detect drag-and-drop
|
var dragAndDrop = function() {
|
// IE8 has ondragstart and ondrop properties, but doesn't seem to
|
// actually support ondragstart the way it's supposed to work.
|
if (/MSIE [1-8]\b/.test(navigator.userAgent)) return false;
|
var div = document.createElement('div');
|
return "draggable" in div;
|
}();
|
|
var gecko = /gecko\/\d{7}/i.test(navigator.userAgent);
|
var ie = /MSIE \d/.test(navigator.userAgent);
|
var webkit = /WebKit\//.test(navigator.userAgent);
|
|
var lineSep = "\n";
|
// Feature-detect whether newlines in textareas are converted to \r\n
|
(function () {
|
var te = document.createElement("textarea");
|
te.value = "foo\nbar";
|
if (te.value.indexOf("\r") > -1) lineSep = "\r\n";
|
}());
|
|
// Counts the column offset in a string, taking tabs into account.
|
// Used mostly to find indentation.
|
function countColumn(string, end, tabSize) {
|
if (end == null) {
|
end = string.search(/[^\s\u00a0]/);
|
if (end == -1) end = string.length;
|
}
|
for (var i = 0, n = 0; i < end; ++i) {
|
if (string.charAt(i) == "\t") n += tabSize - (n % tabSize);
|
else ++n;
|
}
|
return n;
|
}
|
|
function computedStyle(elt) {
|
if (elt.currentStyle) return elt.currentStyle;
|
return window.getComputedStyle(elt, null);
|
}
|
|
// Find the position of an element by following the offsetParent chain.
|
// If screen==true, it returns screen (rather than page) coordinates.
|
function eltOffset(node, screen) {
|
var bod = node.ownerDocument.body;
|
var x = 0, y = 0, skipBody = false;
|
for (var n = node; n; n = n.offsetParent) {
|
var ol = n.offsetLeft, ot = n.offsetTop;
|
// Firefox reports weird inverted offsets when the body has a border.
|
if (n == bod) { x += Math.abs(ol); y += Math.abs(ot); }
|
else { x += ol, y += ot; }
|
if (screen && computedStyle(n).position == "fixed")
|
skipBody = true;
|
}
|
var e = screen && !skipBody ? null : bod;
|
for (var n = node.parentNode; n != e; n = n.parentNode)
|
if (n.scrollLeft != null) { x -= n.scrollLeft; y -= n.scrollTop;}
|
return {left: x, top: y};
|
}
|
// Use the faster and saner getBoundingClientRect method when possible.
|
if (document.documentElement.getBoundingClientRect != null) eltOffset = function(node, screen) {
|
// Take the parts of bounding client rect that we are interested in so we are able to edit if need be,
|
// since the returned value cannot be changed externally (they are kept in sync as the element moves within the page)
|
try { var box = node.getBoundingClientRect(); box = { top: box.top, left: box.left }; }
|
catch(e) { box = {top: 0, left: 0}; }
|
if (!screen) {
|
// Get the toplevel scroll, working around browser differences.
|
if (window.pageYOffset == null) {
|
var t = document.documentElement || document.body.parentNode;
|
if (t.scrollTop == null) t = document.body;
|
box.top += t.scrollTop; box.left += t.scrollLeft;
|
} else {
|
box.top += window.pageYOffset; box.left += window.pageXOffset;
|
}
|
}
|
return box;
|
};
|
|
// Get a node's text content.
|
function eltText(node) {
|
return node.textContent || node.innerText || node.nodeValue || "";
|
}
|
|
// Operations on {line, ch} objects.
|
function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}
|
function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);}
|
function copyPos(x) {return {line: x.line, ch: x.ch};}
|
|
var escapeElement = document.createElement("pre");
|
function htmlEscape(str) {
|
escapeElement.textContent = str;
|
return escapeElement.innerHTML;
|
}
|
// Recent (late 2011) Opera betas insert bogus newlines at the start
|
// of the textContent, so we strip those.
|
if (htmlEscape("a") == "\na")
|
htmlEscape = function(str) {
|
escapeElement.textContent = str;
|
return escapeElement.innerHTML.slice(1);
|
};
|
// Some IEs don't preserve tabs through innerHTML
|
else if (htmlEscape("\t") != "\t")
|
htmlEscape = function(str) {
|
escapeElement.innerHTML = "";
|
escapeElement.appendChild(document.createTextNode(str));
|
return escapeElement.innerHTML;
|
};
|
CodeMirror.htmlEscape = htmlEscape;
|
|
// Used to position the cursor after an undo/redo by finding the
|
// last edited character.
|
function editEnd(from, to) {
|
if (!to) return from ? from.length : 0;
|
if (!from) return to.length;
|
for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j)
|
if (from.charAt(i) != to.charAt(j)) break;
|
return j + 1;
|
}
|
|
function indexOf(collection, elt) {
|
if (collection.indexOf) return collection.indexOf(elt);
|
for (var i = 0, e = collection.length; i < e; ++i)
|
if (collection[i] == elt) return i;
|
return -1;
|
}
|
function isWordChar(ch) {
|
return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase();
|
}
|
|
// See if "".split is the broken IE version, if so, provide an
|
// alternative way to split lines.
|
var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
|
var pos = 0, nl, result = [];
|
while ((nl = string.indexOf("\n", pos)) > -1) {
|
result.push(string.slice(pos, string.charAt(nl-1) == "\r" ? nl - 1 : nl));
|
pos = nl + 1;
|
}
|
result.push(string.slice(pos));
|
return result;
|
} : function(string){return string.split(/\r?\n/);};
|
CodeMirror.splitLines = splitLines;
|
|
var hasSelection = window.getSelection ? function(te) {
|
try { return te.selectionStart != te.selectionEnd; }
|
catch(e) { return false; }
|
} : function(te) {
|
try {var range = te.ownerDocument.selection.createRange();}
|
catch(e) {}
|
if (!range || range.parentElement() != te) return false;
|
return range.compareEndPoints("StartToEnd", range) != 0;
|
};
|
|
CodeMirror.defineMode("null", function() {
|
return {token: function(stream) {stream.skipToEnd();}};
|
});
|
CodeMirror.defineMIME("text/plain", "null");
|
|
var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
|
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
|
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
|
46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 186: ";", 187: "=", 188: ",",
|
189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", 221: "]", 222: "'", 63276: "PageUp",
|
63277: "PageDown", 63275: "End", 63273: "Home", 63234: "Left", 63232: "Up", 63235: "Right",
|
63233: "Down", 63302: "Insert", 63272: "Delete"};
|
CodeMirror.keyNames = keyNames;
|
(function() {
|
// Number keys
|
for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);
|
// Alphabetic keys
|
for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
|
// Function keys
|
for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
|
})();
|
|
return CodeMirror;
|
})();
|
CodeMirror.defineMode("xml", function(config, parserConfig) {
|
var indentUnit = config.indentUnit;
|
var Kludges = parserConfig.htmlMode ? {
|
autoSelfClosers: {"br": true, "img": true, "hr": true, "link": true, "input": true,
|
"meta": true, "col": true, "frame": true, "base": true, "area": true},
|
doNotIndent: {"pre": true},
|
allowUnquoted: true
|
} : {autoSelfClosers: {}, doNotIndent: {}, allowUnquoted: false};
|
var alignCDATA = parserConfig.alignCDATA;
|
|
// Return variables for tokenizers
|
var tagName, type;
|
|
function inText(stream, state) {
|
function chain(parser) {
|
state.tokenize = parser;
|
return parser(stream, state);
|
}
|
|
var ch = stream.next();
|
if (ch == "<") {
|
if (stream.eat("!")) {
|
if (stream.eat("[")) {
|
if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
|
else return null;
|
}
|
else if (stream.match("--")) return chain(inBlock("comment", "-->"));
|
else if (stream.match("DOCTYPE", true, true)) {
|
stream.eatWhile(/[\w\._\-]/);
|
return chain(doctype(1));
|
}
|
else return null;
|
}
|
else if (stream.eat("?")) {
|
stream.eatWhile(/[\w\._\-]/);
|
state.tokenize = inBlock("meta", "?>");
|
return "meta";
|
}
|
else {
|
type = stream.eat("/") ? "closeTag" : "openTag";
|
stream.eatSpace();
|
tagName = "";
|
var c;
|
while ((c = stream.eat(/[^\s\u00a0=<>\"\'\/?]/))) tagName += c;
|
state.tokenize = inTag;
|
return "tag";
|
}
|
}
|
else if (ch == "&") {
|
stream.eatWhile(/[^;]/);
|
stream.eat(";");
|
return "atom";
|
}
|
else {
|
stream.eatWhile(/[^&<]/);
|
return null;
|
}
|
}
|
|
function inTag(stream, state) {
|
var ch = stream.next();
|
if (ch == ">" || (ch == "/" && stream.eat(">"))) {
|
state.tokenize = inText;
|
type = ch == ">" ? "endTag" : "selfcloseTag";
|
return "tag";
|
}
|
else if (ch == "=") {
|
type = "equals";
|
return null;
|
}
|
else if (/[\'\"]/.test(ch)) {
|
state.tokenize = inAttribute(ch);
|
return state.tokenize(stream, state);
|
}
|
else {
|
stream.eatWhile(/[^\s\u00a0=<>\"\'\/?]/);
|
return "word";
|
}
|
}
|
|
function inAttribute(quote) {
|
return function(stream, state) {
|
while (!stream.eol()) {
|
if (stream.next() == quote) {
|
state.tokenize = inTag;
|
break;
|
}
|
}
|
return "string";
|
};
|
}
|
|
function inBlock(style, terminator) {
|
return function(stream, state) {
|
while (!stream.eol()) {
|
if (stream.match(terminator)) {
|
state.tokenize = inText;
|
break;
|
}
|
stream.next();
|
}
|
return style;
|
};
|
}
|
function doctype(depth) {
|
return function(stream, state) {
|
var ch;
|
while ((ch = stream.next()) != null) {
|
if (ch == "<") {
|
state.tokenize = doctype(depth + 1);
|
return state.tokenize(stream, state);
|
} else if (ch == ">") {
|
if (depth == 1) {
|
state.tokenize = inText;
|
break;
|
} else {
|
state.tokenize = doctype(depth - 1);
|
return state.tokenize(stream, state);
|
}
|
}
|
}
|
return "meta";
|
};
|
}
|
|
var curState, setStyle;
|
function pass() {
|
for (var i = arguments.length - 1; i >= 0; i--) curState.cc.push(arguments[i]);
|
}
|
function cont() {
|
pass.apply(null, arguments);
|
return true;
|
}
|
|
function pushContext(tagName, startOfLine) {
|
var noIndent = Kludges.doNotIndent.hasOwnProperty(tagName) || (curState.context && curState.context.noIndent);
|
curState.context = {
|
prev: curState.context,
|
tagName: tagName,
|
indent: curState.indented,
|
startOfLine: startOfLine,
|
noIndent: noIndent
|
};
|
}
|
function popContext() {
|
if (curState.context) curState.context = curState.context.prev;
|
}
|
|
function element(type) {
|
if (type == "openTag") {
|
curState.tagName = tagName;
|
return cont(attributes, endtag(curState.startOfLine));
|
} else if (type == "closeTag") {
|
var err = false;
|
if (curState.context) {
|
err = curState.context.tagName != tagName;
|
} else {
|
err = true;
|
}
|
if (err) setStyle = "error";
|
return cont(endclosetag(err));
|
}
|
return cont();
|
}
|
function endtag(startOfLine) {
|
return function(type) {
|
if (type == "selfcloseTag" ||
|
(type == "endTag" && Kludges.autoSelfClosers.hasOwnProperty(curState.tagName.toLowerCase())))
|
return cont();
|
if (type == "endTag") {pushContext(curState.tagName, startOfLine); return cont();}
|
return cont();
|
};
|
}
|
function endclosetag(err) {
|
return function(type) {
|
if (err) setStyle = "error";
|
if (type == "endTag") { popContext(); return cont(); }
|
setStyle = "error";
|
return cont(arguments.callee);
|
}
|
}
|
|
function attributes(type) {
|
if (type == "word") {setStyle = "attribute"; return cont(attributes);}
|
if (type == "equals") return cont(attvalue, attributes);
|
if (type == "string") {setStyle = "error"; return cont(attributes);}
|
return pass();
|
}
|
function attvalue(type) {
|
if (type == "word" && Kludges.allowUnquoted) {setStyle = "string"; return cont();}
|
if (type == "string") return cont(attvaluemaybe);
|
return pass();
|
}
|
function attvaluemaybe(type) {
|
if (type == "string") return cont(attvaluemaybe);
|
else return pass();
|
}
|
|
return {
|
startState: function() {
|
return {tokenize: inText, cc: [], indented: 0, startOfLine: true, tagName: null, context: null};
|
},
|
|
token: function(stream, state) {
|
if (stream.sol()) {
|
state.startOfLine = true;
|
state.indented = stream.indentation();
|
}
|
if (stream.eatSpace()) return null;
|
|
setStyle = type = tagName = null;
|
var style = state.tokenize(stream, state);
|
state.type = type;
|
if ((style || type) && style != "comment") {
|
curState = state;
|
while (true) {
|
var comb = state.cc.pop() || element;
|
if (comb(type || style)) break;
|
}
|
}
|
state.startOfLine = false;
|
return setStyle || style;
|
},
|
|
indent: function(state, textAfter, fullLine) {
|
var context = state.context;
|
if ((state.tokenize != inTag && state.tokenize != inText) ||
|
context && context.noIndent)
|
return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
|
if (alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0;
|
if (context && /^<\//.test(textAfter))
|
context = context.prev;
|
while (context && !context.startOfLine)
|
context = context.prev;
|
if (context) return context.indent + indentUnit;
|
else return 0;
|
},
|
|
compareStates: function(a, b) {
|
if (a.indented != b.indented || a.tokenize != b.tokenize) return false;
|
for (var ca = a.context, cb = b.context; ; ca = ca.prev, cb = cb.prev) {
|
if (!ca || !cb) return ca == cb;
|
if (ca.tagName != cb.tagName) return false;
|
}
|
},
|
|
electricChars: "/"
|
};
|
});
|
|
CodeMirror.defineMIME("application/xml", "xml");
|
CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});
|
CodeMirror.defineMode("javascript", function(config, parserConfig) {
|
var indentUnit = config.indentUnit;
|
var jsonMode = parserConfig.json;
|
|
// Tokenizer
|
|
var keywords = function(){
|
function kw(type) {return {type: type, style: "keyword"};}
|
var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
|
var operator = kw("operator"), atom = {type: "atom", style: "atom"};
|
return {
|
"if": A, "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
|
"return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C,
|
"var": kw("var"), "const": kw("var"), "let": kw("var"),
|
"function": kw("function"), "catch": kw("catch"),
|
"for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
|
"in": operator, "typeof": operator, "instanceof": operator,
|
"true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom
|
};
|
}();
|
|
var isOperatorChar = /[+\-*&%=<>!?|]/;
|
|
function chain(stream, state, f) {
|
state.tokenize = f;
|
return f(stream, state);
|
}
|
|
function nextUntilUnescaped(stream, end) {
|
var escaped = false, next;
|
while ((next = stream.next()) != null) {
|
if (next == end && !escaped)
|
return false;
|
escaped = !escaped && next == "\\";
|
}
|
return escaped;
|
}
|
|
// Used as scratch variables to communicate multiple values without
|
// consing up tons of objects.
|
var type, content;
|
function ret(tp, style, cont) {
|
type = tp; content = cont;
|
return style;
|
}
|
|
function jsTokenBase(stream, state) {
|
var ch = stream.next();
|
if (ch == '"' || ch == "'")
|
return chain(stream, state, jsTokenString(ch));
|
else if (/[\[\]{}\(\),;\:\.]/.test(ch))
|
return ret(ch);
|
else if (ch == "0" && stream.eat(/x/i)) {
|
stream.eatWhile(/[\da-f]/i);
|
return ret("number", "number");
|
}
|
else if (/\d/.test(ch)) {
|
stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
|
return ret("number", "number");
|
}
|
else if (ch == "/") {
|
if (stream.eat("*")) {
|
return chain(stream, state, jsTokenComment);
|
}
|
else if (stream.eat("/")) {
|
stream.skipToEnd();
|
return ret("comment", "comment");
|
}
|
else if (state.reAllowed) {
|
nextUntilUnescaped(stream, "/");
|
stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla
|
return ret("regexp", "string");
|
}
|
else {
|
stream.eatWhile(isOperatorChar);
|
return ret("operator", null, stream.current());
|
}
|
}
|
else if (ch == "#") {
|
stream.skipToEnd();
|
return ret("error", "error");
|
}
|
else if (isOperatorChar.test(ch)) {
|
stream.eatWhile(isOperatorChar);
|
return ret("operator", null, stream.current());
|
}
|
else {
|
stream.eatWhile(/[\w\$_]/);
|
var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
|
return (known && state.kwAllowed) ? ret(known.type, known.style, word) :
|
ret("variable", "variable", word);
|
}
|
}
|
|
function jsTokenString(quote) {
|
return function(stream, state) {
|
if (!nextUntilUnescaped(stream, quote))
|
state.tokenize = jsTokenBase;
|
return ret("string", "string");
|
};
|
}
|
|
function jsTokenComment(stream, state) {
|
var maybeEnd = false, ch;
|
while (ch = stream.next()) {
|
if (ch == "/" && maybeEnd) {
|
state.tokenize = jsTokenBase;
|
break;
|
}
|
maybeEnd = (ch == "*");
|
}
|
return ret("comment", "comment");
|
}
|
|
// Parser
|
|
var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true};
|
|
function JSLexical(indented, column, type, align, prev, info) {
|
this.indented = indented;
|
this.column = column;
|
this.type = type;
|
this.prev = prev;
|
this.info = info;
|
if (align != null) this.align = align;
|
}
|
|
function inScope(state, varname) {
|
for (var v = state.localVars; v; v = v.next)
|
if (v.name == varname) return true;
|
}
|
|
function parseJS(state, style, type, content, stream) {
|
var cc = state.cc;
|
// Communicate our context to the combinators.
|
// (Less wasteful than consing up a hundred closures on every call.)
|
cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc;
|
|
if (!state.lexical.hasOwnProperty("align"))
|
state.lexical.align = true;
|
|
while(true) {
|
var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
|
if (combinator(type, content)) {
|
while(cc.length && cc[cc.length - 1].lex)
|
cc.pop()();
|
if (cx.marked) return cx.marked;
|
if (type == "variable" && inScope(state, content)) return "variable-2";
|
return style;
|
}
|
}
|
}
|
|
// Combinator utils
|
|
var cx = {state: null, column: null, marked: null, cc: null};
|
function pass() {
|
for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
|
}
|
function cont() {
|
pass.apply(null, arguments);
|
return true;
|
}
|
function register(varname) {
|
var state = cx.state;
|
if (state.context) {
|
cx.marked = "def";
|
for (var v = state.localVars; v; v = v.next)
|
if (v.name == varname) return;
|
state.localVars = {name: varname, next: state.localVars};
|
}
|
}
|
|
// Combinators
|
|
var defaultVars = {name: "this", next: {name: "arguments"}};
|
function pushcontext() {
|
if (!cx.state.context) cx.state.localVars = defaultVars;
|
cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
|
}
|
function popcontext() {
|
cx.state.localVars = cx.state.context.vars;
|
cx.state.context = cx.state.context.prev;
|
}
|
function pushlex(type, info) {
|
var result = function() {
|
var state = cx.state;
|
state.lexical = new JSLexical(state.indented, cx.stream.column(), type, null, state.lexical, info)
|
};
|
result.lex = true;
|
return result;
|
}
|
function poplex() {
|
var state = cx.state;
|
if (state.lexical.prev) {
|
if (state.lexical.type == ")")
|
state.indented = state.lexical.indented;
|
state.lexical = state.lexical.prev;
|
}
|
}
|
poplex.lex = true;
|
|
function expect(wanted) {
|
return function expecting(type) {
|
if (type == wanted) return cont();
|
else if (wanted == ";") return pass();
|
else return cont(arguments.callee);
|
};
|
}
|
|
function statement(type) {
|
if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex);
|
if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
|
if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
|
if (type == "{") return cont(pushlex("}"), block, poplex);
|
if (type == ";") return cont();
|
if (type == "function") return cont(functiondef);
|
if (type == "for") return cont(pushlex("form"), expect("("), pushlex(")"), forspec1, expect(")"),
|
poplex, statement, poplex);
|
if (type == "variable") return cont(pushlex("stat"), maybelabel);
|
if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
|
block, poplex, poplex);
|
if (type == "case") return cont(expression, expect(":"));
|
if (type == "default") return cont(expect(":"));
|
if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
|
statement, poplex, popcontext);
|
return pass(pushlex("stat"), expression, expect(";"), poplex);
|
}
|
function expression(type) {
|
if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator);
|
if (type == "function") return cont(functiondef);
|
if (type == "keyword c") return cont(maybeexpression);
|
if (type == "(") return cont(pushlex(")"), expression, expect(")"), poplex, maybeoperator);
|
if (type == "operator") return cont(expression);
|
if (type == "[") return cont(pushlex("]"), commasep(expression, "]"), poplex, maybeoperator);
|
if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeoperator);
|
return cont();
|
}
|
function maybeexpression(type) {
|
if (type.match(/[;\}\)\],]/)) return pass();
|
return pass(expression);
|
}
|
|
function maybeoperator(type, value) {
|
if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator);
|
if (type == "operator") return cont(expression);
|
if (type == ";") return;
|
if (type == "(") return cont(pushlex(")"), commasep(expression, ")"), poplex, maybeoperator);
|
if (type == ".") return cont(property, maybeoperator);
|
if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, maybeoperator);
|
}
|
function maybelabel(type) {
|
if (type == ":") return cont(poplex, statement);
|
return pass(maybeoperator, expect(";"), poplex);
|
}
|
function property(type) {
|
if (type == "variable") {cx.marked = "property"; return cont();}
|
}
|
function objprop(type) {
|
if (type == "variable") cx.marked = "property";
|
if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expression);
|
}
|
function commasep(what, end) {
|
function proceed(type) {
|
if (type == ",") return cont(what, proceed);
|
if (type == end) return cont();
|
return cont(expect(end));
|
}
|
return function commaSeparated(type) {
|
if (type == end) return cont();
|
else return pass(what, proceed);
|
};
|
}
|
function block(type) {
|
if (type == "}") return cont();
|
return pass(statement, block);
|
}
|
function vardef1(type, value) {
|
if (type == "variable"){register(value); return cont(vardef2);}
|
return cont();
|
}
|
function vardef2(type, value) {
|
if (value == "=") return cont(expression, vardef2);
|
if (type == ",") return cont(vardef1);
|
}
|
function forspec1(type) {
|
if (type == "var") return cont(vardef1, forspec2);
|
if (type == ";") return pass(forspec2);
|
if (type == "variable") return cont(formaybein);
|
return pass(forspec2);
|
}
|
function formaybein(type, value) {
|
if (value == "in") return cont(expression);
|
return cont(maybeoperator, forspec2);
|
}
|
function forspec2(type, value) {
|
if (type == ";") return cont(forspec3);
|
if (value == "in") return cont(expression);
|
return cont(expression, expect(";"), forspec3);
|
}
|
function forspec3(type) {
|
if (type != ")") cont(expression);
|
}
|
function functiondef(type, value) {
|
if (type == "variable") {register(value); return cont(functiondef);}
|
if (type == "(") return cont(pushlex(")"), pushcontext, commasep(funarg, ")"), poplex, statement, popcontext);
|
}
|
function funarg(type, value) {
|
if (type == "variable") {register(value); return cont();}
|
}
|
|
// Interface
|
|
return {
|
startState: function(basecolumn) {
|
return {
|
tokenize: jsTokenBase,
|
reAllowed: true,
|
kwAllowed: true,
|
cc: [],
|
lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
|
localVars: null,
|
context: null,
|
indented: 0
|
};
|
},
|
|
token: function(stream, state) {
|
if (stream.sol()) {
|
if (!state.lexical.hasOwnProperty("align"))
|
state.lexical.align = false;
|
state.indented = stream.indentation();
|
}
|
if (stream.eatSpace()) return null;
|
var style = state.tokenize(stream, state);
|
if (type == "comment") return style;
|
state.reAllowed = type == "operator" || type == "keyword c" || type.match(/^[\[{}\(,;:]$/);
|
state.kwAllowed = type != '.';
|
return parseJS(state, style, type, content, stream);
|
},
|
|
indent: function(state, textAfter) {
|
if (state.tokenize != jsTokenBase) return 0;
|
var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical,
|
type = lexical.type, closing = firstChar == type;
|
if (type == "vardef") return lexical.indented + 4;
|
else if (type == "form" && firstChar == "{") return lexical.indented;
|
else if (type == "stat" || type == "form") return lexical.indented + indentUnit;
|
else if (lexical.info == "switch" && !closing)
|
return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
|
else if (lexical.align) return lexical.column + (closing ? 0 : 1);
|
else return lexical.indented + (closing ? 0 : indentUnit);
|
},
|
|
electricChars: ":{}"
|
};
|
});
|
|
CodeMirror.defineMIME("text/javascript", "javascript");
|
CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
|
|
CodeMirror.defineMode("css", function(config) {
|
var indentUnit = config.indentUnit, type;
|
function ret(style, tp) {type = tp; return style;}
|
|
function tokenBase(stream, state) {
|
var ch = stream.next();
|
if (ch == "@") {stream.eatWhile(/[\w\\\-]/); return ret("meta", stream.current());}
|
else if (ch == "/" && stream.eat("*")) {
|
state.tokenize = tokenCComment;
|
return tokenCComment(stream, state);
|
}
|
else if (ch == "<" && stream.eat("!")) {
|
state.tokenize = tokenSGMLComment;
|
return tokenSGMLComment(stream, state);
|
}
|
else if (ch == "=") ret(null, "compare");
|
else if ((ch == "~" || ch == "|") && stream.eat("=")) return ret(null, "compare");
|
else if (ch == "\"" || ch == "'") {
|
state.tokenize = tokenString(ch);
|
return state.tokenize(stream, state);
|
}
|
else if (ch == "#") {
|
stream.eatWhile(/[\w\\\-]/);
|
return ret("atom", "hash");
|
}
|
else if (ch == "!") {
|
stream.match(/^\s*\w*/);
|
return ret("keyword", "important");
|
}
|
else if (/\d/.test(ch)) {
|
stream.eatWhile(/[\w.%]/);
|
return ret("number", "unit");
|
}
|
else if (/[,.+>*\/]/.test(ch)) {
|
return ret(null, "select-op");
|
}
|
else if (/[;{}:\[\]]/.test(ch)) {
|
return ret(null, ch);
|
}
|
else {
|
stream.eatWhile(/[\w\\\-]/);
|
return ret("variable", "variable");
|
}
|
}
|
|
function tokenCComment(stream, state) {
|
var maybeEnd = false, ch;
|
while ((ch = stream.next()) != null) {
|
if (maybeEnd && ch == "/") {
|
state.tokenize = tokenBase;
|
break;
|
}
|
maybeEnd = (ch == "*");
|
}
|
return ret("comment", "comment");
|
}
|
|
function tokenSGMLComment(stream, state) {
|
var dashes = 0, ch;
|
while ((ch = stream.next()) != null) {
|
if (dashes >= 2 && ch == ">") {
|
state.tokenize = tokenBase;
|
break;
|
}
|
dashes = (ch == "-") ? dashes + 1 : 0;
|
}
|
return ret("comment", "comment");
|
}
|
|
function tokenString(quote) {
|
return function(stream, state) {
|
var escaped = false, ch;
|
while ((ch = stream.next()) != null) {
|
if (ch == quote && !escaped)
|
break;
|
escaped = !escaped && ch == "\\";
|
}
|
if (!escaped) state.tokenize = tokenBase;
|
return ret("string", "string");
|
};
|
}
|
|
return {
|
startState: function(base) {
|
return {tokenize: tokenBase,
|
baseIndent: base || 0,
|
stack: []};
|
},
|
|
token: function(stream, state) {
|
if (stream.eatSpace()) return null;
|
var style = state.tokenize(stream, state);
|
|
var context = state.stack[state.stack.length-1];
|
if (type == "hash" && context == "rule") style = "atom";
|
else if (style == "variable") {
|
if (context == "rule") style = "number";
|
else if (!context || context == "@media{") style = "tag";
|
}
|
|
if (context == "rule" && /^[\{\};]$/.test(type))
|
state.stack.pop();
|
if (type == "{") {
|
if (context == "@media") state.stack[state.stack.length-1] = "@media{";
|
else state.stack.push("{");
|
}
|
else if (type == "}") state.stack.pop();
|
else if (type == "@media") state.stack.push("@media");
|
else if (context == "{" && type != "comment") state.stack.push("rule");
|
return style;
|
},
|
|
indent: function(state, textAfter) {
|
var n = state.stack.length;
|
if (/^\}/.test(textAfter))
|
n -= state.stack[state.stack.length-1] == "rule" ? 2 : 1;
|
return state.baseIndent + n * indentUnit;
|
},
|
|
electricChars: "}"
|
};
|
});
|
|
CodeMirror.defineMIME("text/css", "css");
|
CodeMirror.defineMode("htmlmixed", function(config, parserConfig) {
|
var htmlMode = CodeMirror.getMode(config, {name: "xml", htmlMode: true});
|
var jsMode = CodeMirror.getMode(config, "javascript");
|
var cssMode = CodeMirror.getMode(config, "css");
|
|
function html(stream, state) {
|
var style = htmlMode.token(stream, state.htmlState);
|
if (style == "tag" && stream.current() == ">" && state.htmlState.context) {
|
if (/^script$/i.test(state.htmlState.context.tagName)) {
|
state.token = javascript;
|
state.localState = jsMode.startState(htmlMode.indent(state.htmlState, ""));
|
state.mode = "javascript";
|
}
|
else if (/^style$/i.test(state.htmlState.context.tagName)) {
|
state.token = css;
|
state.localState = cssMode.startState(htmlMode.indent(state.htmlState, ""));
|
state.mode = "css";
|
}
|
}
|
return style;
|
}
|
function maybeBackup(stream, pat, style) {
|
var cur = stream.current();
|
var close = cur.search(pat);
|
if (close > -1) stream.backUp(cur.length - close);
|
return style;
|
}
|
function javascript(stream, state) {
|
if (stream.match(/^<\/\s*script\s*>/i, false)) {
|
state.token = html;
|
state.curState = null;
|
state.mode = "html";
|
return html(stream, state);
|
}
|
return maybeBackup(stream, /<\/\s*script\s*>/,
|
jsMode.token(stream, state.localState));
|
}
|
function css(stream, state) {
|
if (stream.match(/^<\/\s*style\s*>/i, false)) {
|
state.token = html;
|
state.localState = null;
|
state.mode = "html";
|
return html(stream, state);
|
}
|
return maybeBackup(stream, /<\/\s*style\s*>/,
|
cssMode.token(stream, state.localState));
|
}
|
|
return {
|
startState: function() {
|
var state = htmlMode.startState();
|
return {token: html, localState: null, mode: "html", htmlState: state};
|
},
|
|
copyState: function(state) {
|
if (state.localState)
|
var local = CodeMirror.copyState(state.token == css ? cssMode : jsMode, state.localState);
|
return {token: state.token, localState: local, mode: state.mode,
|
htmlState: CodeMirror.copyState(htmlMode, state.htmlState)};
|
},
|
|
token: function(stream, state) {
|
return state.token(stream, state);
|
},
|
|
indent: function(state, textAfter) {
|
if (state.token == html || /^\s*<\//.test(textAfter))
|
return htmlMode.indent(state.htmlState, textAfter);
|
else if (state.token == javascript)
|
return jsMode.indent(state.localState, textAfter);
|
else
|
return cssMode.indent(state.localState, textAfter);
|
},
|
|
compareStates: function(a, b) {
|
return htmlMode.compareStates(a.htmlState, b.htmlState);
|
},
|
|
electricChars: "/{}:"
|
}
|
});
|
|
CodeMirror.defineMIME("text/html", "htmlmixed");
|
