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4490 lines
143 KiB
4490 lines
143 KiB
// 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 = {},
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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)[
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opt
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];
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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);
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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,
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input = inputDiv.firstChild,
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scroller = wrapper.lastChild,
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code = scroller.firstChild,
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mover = code.firstChild,
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gutter = mover.firstChild,
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gutterText = gutter.firstChild,
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lineSpace = gutter.nextSibling.firstChild,
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measure = lineSpace.firstChild,
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cursor = measure.nextSibling,
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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))
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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 {
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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(
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'A CodeMirror inside a P-style element does not work in Internet Explorer. (innerHTML bug)',
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);
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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(),
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highlight = new Delayed(),
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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,
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doc = new BranchChunk([new LeafChunk([new Line('')])]),
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work,
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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,
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lastClick,
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lastDoubleClick,
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draggingText,
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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,
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userSelChange,
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changes,
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textChanged,
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selectionChanged,
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leaveInputAlone,
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gutterDirty,
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callbacks;
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// Current visible range (may be bigger than the view window).
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var displayOffset = 0,
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showingFrom = 0,
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showingTo = 0,
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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 = '',
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maxWidth,
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tabText = computeTabText();
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// Initialize the content.
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operation(function () {
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setValue(options.value || '');
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updateInput = false;
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})();
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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 () {
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updateDisplay(true);
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});
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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 () {
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focusInput();
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fastPoll();
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});
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connect(input, 'paste', fastPoll);
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connect(
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input,
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'cut',
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operation(function () {
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replaceSelection('');
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}),
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);
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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;
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try {
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hasFocus = targetDocument.activeElement == input;
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} catch (e) {}
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if (hasFocus) setTimeout(onFocus, 20);
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else onBlur();
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function isLine(l) {
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return l >= 0 && l < doc.size;
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}
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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 () {
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focusInput();
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onFocus();
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fastPoll();
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},
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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) {
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onBlur();
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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 (
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option == 'lineNumbers' ||
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option == 'gutter' ||
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option == 'firstLineNumber' ||
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option == 'theme'
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)
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operation(gutterChanged)();
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},
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getOption: function (option) {
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return options[option];
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},
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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 () {
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return { undo: history.done.length, redo: history.undone.length };
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},
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clearHistory: function () {
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history = new History();
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},
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matchBrackets: operation(function () {
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matchBrackets(true);
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}),
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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) {
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return pageCoords(clipPos(pos));
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},
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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) {
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return setLineHidden(h, true);
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}),
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showLine: operation(function (h) {
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return setLineHidden(h, false);
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}),
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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,
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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) 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) scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight);
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},
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lineCount: function () {
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return doc.size;
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},
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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 () {
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return !posEq(sel.from, sel.to);
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},
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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) {
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if (isLine(line)) return getLine(line).text;
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},
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getLineHandle: function (line) {
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if (isLine(line)) return getLine(line);
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},
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setLine: operation(function (line, text) {
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if (isLine(line))
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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))
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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) {
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return getRange(clipPos(from), clipPos(to));
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},
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execCommand: function (cmd) {
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return commands[cmd](instance);
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},
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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 () {
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overwrite = !overwrite;
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},
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posFromIndex: function (off) {
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var lineNo = 0,
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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) {
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ch = off;
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return true;
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}
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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) {
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return operation(f)();
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},
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refresh: function () {
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updateDisplay(true);
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},
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getInputField: function () {
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return input;
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},
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getWrapperElement: function () {
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return wrapper;
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},
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getScrollerElement: function () {
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return scroller;
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},
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getGutterElement: function () {
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return gutter;
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},
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});
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function getLine(n) {
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return getLineAt(doc, n);
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}
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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(
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top,
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{ line: doc.size - 1, ch: getLine(doc.size - 1).text.length },
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splitLines(code),
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top,
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top,
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);
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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) {
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text.push(line.text);
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});
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return text.join('\n');
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}
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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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|
|
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var start = posFromMouse(e);
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|
|
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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;
|
|
case 2:
|
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if (start) setCursor(start.line, start.ch, true);
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return;
|
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}
|
|
// For button 1, if it was clicked inside the editor
|
|
// (posFromMouse returning non-null), we have to adjust the
|
|
// selection.
|
|
if (!start) {
|
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if (e_target(e) == scroller) e_preventDefault(e);
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return;
|
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}
|
|
|
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if (!focused) onFocus();
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|
|
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var now = +new Date();
|
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if (
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lastDoubleClick &&
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lastDoubleClick.time > now - 400 &&
|
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posEq(lastDoubleClick.pos, start)
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) {
|
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e_preventDefault(e);
|
|
setTimeout(focusInput, 20);
|
|
return selectLine(start.line);
|
|
} 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 {
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lastClick = { time: now, pos: start };
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}
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var last = start,
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going;
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if (
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dragAndDrop &&
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!posEq(sel.from, sel.to) &&
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!posLess(start, sel.from) &&
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!posLess(sel.to, start)
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) {
|
|
// Let the drag handler handle this.
|
|
if (webkit) lineSpace.draggable = true;
|
|
var up = connect(
|
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targetDocument,
|
|
'mouseup',
|
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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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);
|
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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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|
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function extend(e) {
|
|
var cur = posFromMouse(e, true);
|
|
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);
|
|
updateInput = false;
|
|
var visible = visibleLines();
|
|
if (cur.line >= visible.to || cur.line < visible.from)
|
|
going = setTimeout(
|
|
operation(function () {
|
|
extend(e);
|
|
}),
|
|
150,
|
|
);
|
|
}
|
|
}
|
|
|
|
var move = connect(
|
|
targetDocument,
|
|
'mousemove',
|
|
operation(function (e) {
|
|
clearTimeout(going);
|
|
e_preventDefault(e);
|
|
extend(e);
|
|
}),
|
|
true,
|
|
);
|
|
var up = connect(
|
|
targetDocument,
|
|
'mouseup',
|
|
operation(function (e) {
|
|
clearTimeout(going);
|
|
var cur = posFromMouse(e);
|
|
if (cur) setSelectionUser(start, cur);
|
|
e_preventDefault(e);
|
|
focusInput();
|
|
updateInput = true;
|
|
move();
|
|
up();
|
|
}),
|
|
true,
|
|
);
|
|
}
|
|
function onDoubleClick(e) {
|
|
for (var n = e_target(e); n != wrapper; n = n.parentNode)
|
|
if (n.parentNode == gutterText) return e_preventDefault(e);
|
|
var start = posFromMouse(e);
|
|
if (!start) return;
|
|
lastDoubleClick = { time: +new Date(), pos: start };
|
|
e_preventDefault(e);
|
|
selectWordAt(start);
|
|
}
|
|
function onDrop(e) {
|
|
e.preventDefault();
|
|
var pos = posFromMouse(e, true),
|
|
files = e.dataTransfer.files;
|
|
if (!pos || options.readOnly) return;
|
|
if (files && files.length && window.FileReader && window.File) {
|
|
function loadFile(file, i) {
|
|
var reader = new FileReader();
|
|
reader.onload = function () {
|
|
text[i] = reader.result;
|
|
if (++read == n) {
|
|
pos = clipPos(pos);
|
|
operation(function () {
|
|
var end = replaceRange(text.join(''), pos, pos);
|
|
setSelectionUser(pos, end);
|
|
})();
|
|
}
|
|
};
|
|
reader.readAsText(file);
|
|
}
|
|
var n = files.length,
|
|
text = Array(n),
|
|
read = 0;
|
|
for (var i = 0; i < n; ++i) loadFile(files[i], i);
|
|
} else {
|
|
try {
|
|
var text = e.dataTransfer.getData('Text');
|
|
if (text) {
|
|
var end = replaceRange(text, pos, pos);
|
|
var curFrom = sel.from,
|
|
curTo = sel.to;
|
|
setSelectionUser(pos, end);
|
|
if (draggingText) replaceRange('', curFrom, curTo);
|
|
focusInput();
|
|
}
|
|
} catch (e) {}
|
|
}
|
|
}
|
|
function onDragStart(e) {
|
|
var txt = getSelection();
|
|
// This will reset escapeElement
|
|
htmlEscape(txt);
|
|
e.dataTransfer.setDragImage(escapeElement, 0, 0);
|
|
e.dataTransfer.setData('Text', txt);
|
|
}
|
|
function handleKeyBinding(e) {
|
|
var name = keyNames[e.keyCode],
|
|
next = keyMap[options.keyMap].auto,
|
|
bound,
|
|
dropShift;
|
|
if (name == null || e.altGraphKey) {
|
|
if (next) options.keyMap = next;
|
|
return null;
|
|
}
|
|
if (e.altKey) name = 'Alt-' + name;
|
|
if (e.ctrlKey) name = 'Ctrl-' + name;
|
|
if (e.metaKey) name = 'Cmd-' + name;
|
|
if (e.shiftKey && (bound = lookupKey('Shift-' + name, options.extraKeys, options.keyMap))) {
|
|
dropShift = true;
|
|
} else {
|
|
bound = lookupKey(name, options.extraKeys, options.keyMap);
|
|
}
|
|
if (typeof bound == 'string') {
|
|
if (commands.propertyIsEnumerable(bound)) bound = commands[bound];
|
|
else bound = null;
|
|
}
|
|
if (next && (bound || !isModifierKey(e))) options.keyMap = next;
|
|
if (!bound) return false;
|
|
if (dropShift) {
|
|
var prevShift = shiftSelecting;
|
|
shiftSelecting = null;
|
|
bound(instance);
|
|
shiftSelecting = prevShift;
|
|
} else bound(instance);
|
|
e_preventDefault(e);
|
|
return true;
|
|
}
|
|
var lastStoppedKey = null;
|
|
function onKeyDown(e) {
|
|
if (!focused) onFocus();
|
|
var code = e.keyCode;
|
|
// IE does strange things with escape.
|
|
if (ie && code == 27) {
|
|
e.returnValue = false;
|
|
}
|
|
setShift(code == 16 || e.shiftKey);
|
|
// First give onKeyEvent option a chance to handle this.
|
|
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
|
|
var handled = handleKeyBinding(e);
|
|
if (window.opera) {
|
|
lastStoppedKey = handled ? e.keyCode : null;
|
|
// Opera has no cut event... we try to at least catch the key combo
|
|
if (!handled && (mac ? e.metaKey : e.ctrlKey) && e.keyCode == 88) replaceSelection('');
|
|
}
|
|
}
|
|
function onKeyPress(e) {
|
|
if (window.opera && e.keyCode == lastStoppedKey) {
|
|
lastStoppedKey = null;
|
|
e_preventDefault(e);
|
|
return;
|
|
}
|
|
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
|
|
if (window.opera && !e.which && handleKeyBinding(e)) return;
|
|
if (options.electricChars && mode.electricChars) {
|
|
var ch = String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode);
|
|
if (mode.electricChars.indexOf(ch) > -1)
|
|
setTimeout(
|
|
operation(function () {
|
|
indentLine(sel.to.line, 'smart');
|
|
}),
|
|
75,
|
|
);
|
|
}
|
|
fastPoll();
|
|
}
|
|
function onKeyUp(e) {
|
|
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
|
|
if (e.keyCode == 16) shiftSelecting = null;
|
|
}
|
|
|
|
function onFocus() {
|
|
if (options.readOnly) return;
|
|
if (!focused) {
|
|
if (options.onFocus) options.onFocus(instance);
|
|
focused = true;
|
|
if (wrapper.className.search(/\bCodeMirror-focused\b/) == -1)
|
|
wrapper.className += ' CodeMirror-focused';
|
|
if (!leaveInputAlone) resetInput(true);
|
|
}
|
|
slowPoll();
|
|
restartBlink();
|
|
}
|
|
function onBlur() {
|
|
if (focused) {
|
|
if (options.onBlur) options.onBlur(instance);
|
|
focused = false;
|
|
wrapper.className = wrapper.className.replace(' CodeMirror-focused', '');
|
|
}
|
|
clearInterval(blinker);
|
|
setTimeout(function () {
|
|
if (!focused) shiftSelecting = null;
|
|
}, 150);
|
|
}
|
|
|
|
// Replace the range from from to to by the strings in newText.
|
|
// Afterwards, set the selection to selFrom, selTo.
|
|
function updateLines(from, to, newText, selFrom, selTo) {
|
|
if (history) {
|
|
var old = [];
|
|
doc.iter(from.line, to.line + 1, function (line) {
|
|
old.push(line.text);
|
|
});
|
|
history.addChange(from.line, newText.length, old);
|
|
while (history.done.length > options.undoDepth) history.done.shift();
|
|
}
|
|
updateLinesNoUndo(from, to, newText, selFrom, selTo);
|
|
}
|
|
function unredoHelper(from, to) {
|
|
var change = from.pop();
|
|
if (change) {
|
|
var replaced = [],
|
|
end = change.start + change.added;
|
|
doc.iter(change.start, end, function (line) {
|
|
replaced.push(line.text);
|
|
});
|
|
to.push({ start: change.start, added: change.old.length, old: replaced });
|
|
var pos = clipPos({
|
|
line: change.start + change.old.length - 1,
|
|
ch: editEnd(replaced[replaced.length - 1], change.old[change.old.length - 1]),
|
|
});
|
|
updateLinesNoUndo(
|
|
{ line: change.start, ch: 0 },
|
|
{ line: end - 1, ch: getLine(end - 1).text.length },
|
|
change.old,
|
|
pos,
|
|
pos,
|
|
);
|
|
updateInput = true;
|
|
}
|
|
}
|
|
function undo() {
|
|
unredoHelper(history.done, history.undone);
|
|
}
|
|
function redo() {
|
|
unredoHelper(history.undone, history.done);
|
|
}
|
|
|
|
function updateLinesNoUndo(from, to, newText, selFrom, selTo) {
|
|
var recomputeMaxLength = false,
|
|
maxLineLength = maxLine.length;
|
|
if (!options.lineWrapping)
|
|
doc.iter(from.line, to.line, function (line) {
|
|
if (line.text.length == maxLineLength) {
|
|
recomputeMaxLength = true;
|
|
return true;
|
|
}
|
|
});
|
|
if (from.line != to.line || newText.length > 1) gutterDirty = true;
|
|
|
|
var nlines = to.line - from.line,
|
|
firstLine = getLine(from.line),
|
|
lastLine = getLine(to.line);
|
|
// First adjust the line structure, taking some care to leave highlighting intact.
|
|
if (from.ch == 0 && to.ch == 0 && newText[newText.length - 1] == '') {
|
|
// This is a whole-line replace. Treated specially to make
|
|
// sure line objects move the way they are supposed to.
|
|
var added = [],
|
|
prevLine = null;
|
|
if (from.line) {
|
|
prevLine = getLine(from.line - 1);
|
|
prevLine.fixMarkEnds(lastLine);
|
|
} else lastLine.fixMarkStarts();
|
|
for (var i = 0, e = newText.length - 1; i < e; ++i)
|
|
added.push(Line.inheritMarks(newText[i], prevLine));
|
|
if (nlines) doc.remove(from.line, nlines, callbacks);
|
|
if (added.length) doc.insert(from.line, added);
|
|
} else if (firstLine == lastLine) {
|
|
if (newText.length == 1) firstLine.replace(from.ch, to.ch, newText[0]);
|
|
else {
|
|
lastLine = firstLine.split(to.ch, newText[newText.length - 1]);
|
|
firstLine.replace(from.ch, null, newText[0]);
|
|
firstLine.fixMarkEnds(lastLine);
|
|
var added = [];
|
|
for (var i = 1, e = newText.length - 1; i < e; ++i)
|
|
added.push(Line.inheritMarks(newText[i], firstLine));
|
|
added.push(lastLine);
|
|
doc.insert(from.line + 1, added);
|
|
}
|
|
} else if (newText.length == 1) {
|
|
firstLine.replace(from.ch, null, newText[0]);
|
|
lastLine.replace(null, to.ch, '');
|
|
firstLine.append(lastLine);
|
|
doc.remove(from.line + 1, nlines, callbacks);
|
|
} else {
|
|
var added = [];
|
|
firstLine.replace(from.ch, null, newText[0]);
|
|
lastLine.replace(null, to.ch, newText[newText.length - 1]);
|
|
firstLine.fixMarkEnds(lastLine);
|
|
for (var i = 1, e = newText.length - 1; i < e; ++i)
|
|
added.push(Line.inheritMarks(newText[i], firstLine));
|
|
if (nlines > 1) doc.remove(from.line + 1, nlines - 1, callbacks);
|
|
doc.insert(from.line + 1, added);
|
|
}
|
|
if (options.lineWrapping) {
|
|
var perLine = scroller.clientWidth / charWidth() - 3;
|
|
doc.iter(from.line, from.line + newText.length, function (line) {
|
|
if (line.hidden) return;
|
|
var guess = Math.ceil(line.text.length / perLine) || 1;
|
|
if (guess != line.height) updateLineHeight(line, guess);
|
|
});
|
|
} else {
|
|
doc.iter(from.line, i + newText.length, function (line) {
|
|
var l = line.text;
|
|
if (l.length > maxLineLength) {
|
|
maxLine = l;
|
|
maxLineLength = l.length;
|
|
maxWidth = null;
|
|
recomputeMaxLength = false;
|
|
}
|
|
});
|
|
if (recomputeMaxLength) {
|
|
maxLineLength = 0;
|
|
maxLine = '';
|
|
maxWidth = null;
|
|
doc.iter(0, doc.size, function (line) {
|
|
var l = line.text;
|
|
if (l.length > maxLineLength) {
|
|
maxLineLength = l.length;
|
|
maxLine = l;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
// Add these lines to the work array, so that they will be
|
|
// highlighted. Adjust work lines if lines were added/removed.
|
|
var newWork = [],
|
|
lendiff = newText.length - nlines - 1;
|
|
for (var i = 0, l = work.length; i < l; ++i) {
|
|
var task = work[i];
|
|
if (task < from.line) newWork.push(task);
|
|
else if (task > to.line) newWork.push(task + lendiff);
|
|
}
|
|
var hlEnd = from.line + Math.min(newText.length, 500);
|
|
highlightLines(from.line, hlEnd);
|
|
newWork.push(hlEnd);
|
|
work = newWork;
|
|
startWorker(100);
|
|
// Remember that these lines changed, for updating the display
|
|
changes.push({ from: from.line, to: to.line + 1, diff: lendiff });
|
|
var changeObj = { from: from, to: to, text: newText };
|
|
if (textChanged) {
|
|
for (var cur = textChanged; cur.next; cur = cur.next) {}
|
|
cur.next = changeObj;
|
|
} else textChanged = changeObj;
|
|
|
|
// Update the selection
|
|
function updateLine(n) {
|
|
return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;
|
|
}
|
|
setSelection(selFrom, selTo, updateLine(sel.from.line), updateLine(sel.to.line));
|
|
|
|
// Make sure the scroll-size div has the correct height.
|
|
code.style.height = doc.height * textHeight() + 2 * paddingTop() + 'px';
|
|
}
|
|
|
|
function replaceRange(code, from, to) {
|
|
from = clipPos(from);
|
|
if (!to) to = from;
|
|
else to = clipPos(to);
|
|
code = splitLines(code);
|
|
function adjustPos(pos) {
|
|
if (posLess(pos, from)) return pos;
|
|
if (!posLess(to, pos)) return end;
|
|
var line = pos.line + code.length - (to.line - from.line) - 1;
|
|
var ch = pos.ch;
|
|
if (pos.line == to.line)
|
|
ch += code[code.length - 1].length - (to.ch - (to.line == from.line ? from.ch : 0));
|
|
return { line: line, ch: ch };
|
|
}
|
|
var end;
|
|
replaceRange1(code, from, to, function (end1) {
|
|
end = end1;
|
|
return { from: adjustPos(sel.from), to: adjustPos(sel.to) };
|
|
});
|
|
return end;
|
|
}
|
|
function replaceSelection(code, collapse) {
|
|
replaceRange1(splitLines(code), sel.from, sel.to, function (end) {
|
|
if (collapse == 'end') return { from: end, to: end };
|
|
else if (collapse == 'start') return { from: sel.from, to: sel.from };
|
|
else return { from: sel.from, to: end };
|
|
});
|
|
}
|
|
function replaceRange1(code, from, to, computeSel) {
|
|
var endch = code.length == 1 ? code[0].length + from.ch : code[code.length - 1].length;
|
|
var newSel = computeSel({ line: from.line + code.length - 1, ch: endch });
|
|
updateLines(from, to, code, newSel.from, newSel.to);
|
|
}
|
|
|
|
function getRange(from, to) {
|
|
var l1 = from.line,
|
|
l2 = to.line;
|
|
if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch);
|
|
var code = [getLine(l1).text.slice(from.ch)];
|
|
doc.iter(l1 + 1, l2, function (line) {
|
|
code.push(line.text);
|
|
});
|
|
code.push(getLine(l2).text.slice(0, to.ch));
|
|
return code.join('\n');
|
|
}
|
|
function getSelection() {
|
|
return getRange(sel.from, sel.to);
|
|
}
|
|
|
|
var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll
|
|
function slowPoll() {
|
|
if (pollingFast) return;
|
|
poll.set(options.pollInterval, function () {
|
|
startOperation();
|
|
readInput();
|
|
if (focused) slowPoll();
|
|
endOperation();
|
|
});
|
|
}
|
|
function fastPoll() {
|
|
var missed = false;
|
|
pollingFast = true;
|
|
function p() {
|
|
startOperation();
|
|
var changed = readInput();
|
|
if (!changed && !missed) {
|
|
missed = true;
|
|
poll.set(60, p);
|
|
} else {
|
|
pollingFast = false;
|
|
slowPoll();
|
|
}
|
|
endOperation();
|
|
}
|
|
poll.set(20, p);
|
|
}
|
|
|
|
// Previnput is a hack to work with IME. If we reset the textarea
|
|
// on every change, that breaks IME. So we look for changes
|
|
// compared to the previous content instead. (Modern browsers have
|
|
// events that indicate IME taking place, but these are not widely
|
|
// supported or compatible enough yet to rely on.)
|
|
var prevInput = '';
|
|
function readInput() {
|
|
if (leaveInputAlone || !focused || hasSelection(input)) return false;
|
|
var text = input.value;
|
|
if (text == prevInput) return false;
|
|
shiftSelecting = null;
|
|
var same = 0,
|
|
l = Math.min(prevInput.length, text.length);
|
|
while (same < l && prevInput[same] == text[same]) ++same;
|
|
if (same < prevInput.length)
|
|
sel.from = { line: sel.from.line, ch: sel.from.ch - (prevInput.length - same) };
|
|
else if (overwrite && posEq(sel.from, sel.to))
|
|
sel.to = {
|
|
line: sel.to.line,
|
|
ch: Math.min(getLine(sel.to.line).text.length, sel.to.ch + (text.length - same)),
|
|
};
|
|
replaceSelection(text.slice(same), 'end');
|
|
prevInput = text;
|
|
return true;
|
|
}
|
|
function resetInput(user) {
|
|
if (!posEq(sel.from, sel.to)) {
|
|
prevInput = '';
|
|
input.value = getSelection();
|
|
input.select();
|
|
} else if (user) prevInput = input.value = '';
|
|
}
|
|
|
|
function focusInput() {
|
|
if (!options.readOnly) input.focus();
|
|
}
|
|
|
|
function scrollEditorIntoView() {
|
|
if (!cursor.getBoundingClientRect) return;
|
|
var rect = cursor.getBoundingClientRect();
|
|
// IE returns bogus coordinates when the instance sits inside of an iframe and the cursor is hidden
|
|
if (ie && rect.top == rect.bottom) return;
|
|
var winH =
|
|
window.innerHeight ||
|
|
Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
|
|
if (rect.top < 0 || rect.bottom > winH) cursor.scrollIntoView();
|
|
}
|
|
function scrollCursorIntoView() {
|
|
var cursor = localCoords(sel.inverted ? sel.from : sel.to);
|
|
var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x;
|
|
return scrollIntoView(x, cursor.y, x, cursor.yBot);
|
|
}
|
|
function scrollIntoView(x1, y1, x2, y2) {
|
|
var pl = paddingLeft(),
|
|
pt = paddingTop(),
|
|
lh = textHeight();
|
|
y1 += pt;
|
|
y2 += pt;
|
|
x1 += pl;
|
|
x2 += pl;
|
|
var screen = scroller.clientHeight,
|
|
screentop = scroller.scrollTop,
|
|
scrolled = false,
|
|
result = true;
|
|
if (y1 < screentop) {
|
|
scroller.scrollTop = Math.max(0, y1 - 2 * lh);
|
|
scrolled = true;
|
|
} else if (y2 > screentop + screen) {
|
|
scroller.scrollTop = y2 + lh - screen;
|
|
scrolled = true;
|
|
}
|
|
|
|
var screenw = scroller.clientWidth,
|
|
screenleft = scroller.scrollLeft;
|
|
var gutterw = options.fixedGutter ? gutter.clientWidth : 0;
|
|
if (x1 < screenleft + gutterw) {
|
|
if (x1 < 50) x1 = 0;
|
|
scroller.scrollLeft = Math.max(0, x1 - 10 - gutterw);
|
|
scrolled = true;
|
|
} else if (x2 > screenw + screenleft - 3) {
|
|
scroller.scrollLeft = x2 + 10 - screenw;
|
|
scrolled = true;
|
|
if (x2 > code.clientWidth) result = false;
|
|
}
|
|
if (scrolled && options.onScroll) options.onScroll(instance);
|
|
return result;
|
|
}
|
|
|
|
function visibleLines() {
|
|
var lh = textHeight(),
|
|
top = scroller.scrollTop - paddingTop();
|
|
var from_height = Math.max(0, Math.floor(top / lh));
|
|
var to_height = Math.ceil((top + scroller.clientHeight) / lh);
|
|
return { from: lineAtHeight(doc, from_height), to: lineAtHeight(doc, to_height) };
|
|
}
|
|
// Uses a set of changes plus the current scroll position to
|
|
// determine which DOM updates have to be made, and makes the
|
|
// updates.
|
|
function updateDisplay(changes, suppressCallback) {
|
|
if (!scroller.clientWidth) {
|
|
showingFrom = showingTo = displayOffset = 0;
|
|
return;
|
|
}
|
|
// Compute the new visible window
|
|
var visible = visibleLines();
|
|
// Bail out if the visible area is already rendered and nothing changed.
|
|
if (
|
|
changes !== true &&
|
|
changes.length == 0 &&
|
|
visible.from >= showingFrom &&
|
|
visible.to <= showingTo
|
|
)
|
|
return;
|
|
var from = Math.max(visible.from - 100, 0),
|
|
to = Math.min(doc.size, visible.to + 100);
|
|
if (showingFrom < from && from - showingFrom < 20) from = showingFrom;
|
|
if (showingTo > to && showingTo - to < 20) to = Math.min(doc.size, showingTo);
|
|
|
|
// Create a range of theoretically intact lines, and punch holes
|
|
// in that using the change info.
|
|
var intact =
|
|
changes === true
|
|
? []
|
|
: computeIntact([{ from: showingFrom, to: showingTo, domStart: 0 }], changes);
|
|
// Clip off the parts that won't be visible
|
|
var intactLines = 0;
|
|
for (var i = 0; i < intact.length; ++i) {
|
|
var range = intact[i];
|
|
if (range.from < from) {
|
|
range.domStart += from - range.from;
|
|
range.from = from;
|
|
}
|
|
if (range.to > to) range.to = to;
|
|
if (range.from >= range.to) intact.splice(i--, 1);
|
|
else intactLines += range.to - range.from;
|
|
}
|
|
if (intactLines == to - from) return;
|
|
intact.sort(function (a, b) {
|
|
return a.domStart - b.domStart;
|
|
});
|
|
|
|
var th = textHeight(),
|
|
gutterDisplay = gutter.style.display;
|
|
lineDiv.style.display = gutter.style.display = 'none';
|
|
patchDisplay(from, to, intact);
|
|
lineDiv.style.display = '';
|
|
|
|
// Position the mover div to align with the lines it's supposed
|
|
// to be showing (which will cover the visible display)
|
|
var different =
|
|
from != showingFrom || to != showingTo || lastSizeC != scroller.clientHeight + th;
|
|
// This is just a bogus formula that detects when the editor is
|
|
// resized or the font size changes.
|
|
if (different) lastSizeC = scroller.clientHeight + th;
|
|
showingFrom = from;
|
|
showingTo = to;
|
|
displayOffset = heightAtLine(doc, from);
|
|
mover.style.top = displayOffset * th + 'px';
|
|
code.style.height = doc.height * th + 2 * paddingTop() + 'px';
|
|
|
|
// Since this is all rather error prone, it is honoured with the
|
|
// only assertion in the whole file.
|
|
if (lineDiv.childNodes.length != showingTo - showingFrom)
|
|
throw new Error(
|
|
'BAD PATCH! ' +
|
|
JSON.stringify(intact) +
|
|
' size=' +
|
|
(showingTo - showingFrom) +
|
|
' nodes=' +
|
|
lineDiv.childNodes.length,
|
|
);
|
|
|
|
if (options.lineWrapping) {
|
|
maxWidth = scroller.clientWidth;
|
|
var curNode = lineDiv.firstChild;
|
|
doc.iter(showingFrom, showingTo, function (line) {
|
|
if (!line.hidden) {
|
|
var height = Math.round(curNode.offsetHeight / th) || 1;
|
|
if (line.height != height) {
|
|
updateLineHeight(line, height);
|
|
gutterDirty = true;
|
|
}
|
|
}
|
|
curNode = curNode.nextSibling;
|
|
});
|
|
} else {
|
|
if (maxWidth == null) maxWidth = stringWidth(maxLine);
|
|
if (maxWidth > scroller.clientWidth) {
|
|
lineSpace.style.width = maxWidth + 'px';
|
|
// Needed to prevent odd wrapping/hiding of widgets placed in here.
|
|
code.style.width = '';
|
|
code.style.width = scroller.scrollWidth + 'px';
|
|
} else {
|
|
lineSpace.style.width = code.style.width = '';
|
|
}
|
|
}
|
|
gutter.style.display = gutterDisplay;
|
|
if (different || gutterDirty) updateGutter();
|
|
updateCursor();
|
|
if (!suppressCallback && options.onUpdate) options.onUpdate(instance);
|
|
return true;
|
|
}
|
|
|
|
function computeIntact(intact, changes) {
|
|
for (var i = 0, l = changes.length || 0; i < l; ++i) {
|
|
var change = changes[i],
|
|
intact2 = [],
|
|
diff = change.diff || 0;
|
|
for (var j = 0, l2 = intact.length; j < l2; ++j) {
|
|
var range = intact[j];
|
|
if (change.to <= range.from && change.diff)
|
|
intact2.push({
|
|
from: range.from + diff,
|
|
to: range.to + diff,
|
|
domStart: range.domStart,
|
|
});
|
|
else if (change.to <= range.from || change.from >= range.to) intact2.push(range);
|
|
else {
|
|
if (change.from > range.from)
|
|
intact2.push({ from: range.from, to: change.from, domStart: range.domStart });
|
|
if (change.to < range.to)
|
|
intact2.push({
|
|
from: change.to + diff,
|
|
to: range.to + diff,
|
|
domStart: range.domStart + (change.to - range.from),
|
|
});
|
|
}
|
|
}
|
|
intact = intact2;
|
|
}
|
|
return intact;
|
|
}
|
|
|
|
function patchDisplay(from, to, intact) {
|
|
// The first pass removes the DOM nodes that aren't intact.
|
|
if (!intact.length) lineDiv.innerHTML = '';
|
|
else {
|
|
function killNode(node) {
|
|
var tmp = node.nextSibling;
|
|
node.parentNode.removeChild(node);
|
|
return tmp;
|
|
}
|
|
var domPos = 0,
|
|
curNode = lineDiv.firstChild,
|
|
n;
|
|
for (var i = 0; i < intact.length; ++i) {
|
|
var cur = intact[i];
|
|
while (cur.domStart > domPos) {
|
|
curNode = killNode(curNode);
|
|
domPos++;
|
|
}
|
|
for (var j = 0, e = cur.to - cur.from; j < e; ++j) {
|
|
curNode = curNode.nextSibling;
|
|
domPos++;
|
|
}
|
|
}
|
|
while (curNode) curNode = killNode(curNode);
|
|
}
|
|
// This pass fills in the lines that actually changed.
|
|
var nextIntact = intact.shift(),
|
|
curNode = lineDiv.firstChild,
|
|
j = from;
|
|
var sfrom = sel.from.line,
|
|
sto = sel.to.line,
|
|
inSel = sfrom < from && sto >= from;
|
|
var scratch = targetDocument.createElement('div'),
|
|
newElt;
|
|
doc.iter(from, to, function (line) {
|
|
var ch1 = null,
|
|
ch2 = null;
|
|
if (inSel) {
|
|
ch1 = 0;
|
|
if (sto == j) {
|
|
inSel = false;
|
|
ch2 = sel.to.ch;
|
|
}
|
|
} else if (sfrom == j) {
|
|
if (sto == j) {
|
|
ch1 = sel.from.ch;
|
|
ch2 = sel.to.ch;
|
|
} else {
|
|
inSel = true;
|
|
ch1 = sel.from.ch;
|
|
}
|
|
}
|
|
if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();
|
|
if (!nextIntact || nextIntact.from > j) {
|
|
if (line.hidden) scratch.innerHTML = '<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 * 0.9) / 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');
|
|
|