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Updating CodeMirror to v 2.12.

For now I am keeping the old codemirror2 directory in here until
we finish debugging the new version.
  • Loading branch information...
commit 981bc0cccec5404a665190596d97ce28ef2ad914 1 parent 653f157
Brian E. Granger ellisonbg authored
Showing with 4,868 additions and 17 deletions.
  1. +19 −0 IPython/frontend/html/notebook/static/codemirror-2.12/LICENSE
  2. +6 −0 IPython/frontend/html/notebook/static/codemirror-2.12/README.md
  3. +17 −0 IPython/frontend/html/notebook/static/codemirror-2.12/lib/Untitled0.ipynb
  4. +67 −0 IPython/frontend/html/notebook/static/codemirror-2.12/lib/codemirror.css
  5. +2,144 −0 IPython/frontend/html/notebook/static/codemirror-2.12/lib/codemirror.js
  6. +51 −0 IPython/frontend/html/notebook/static/codemirror-2.12/lib/overlay.js
  7. +27 −0 IPython/frontend/html/notebook/static/codemirror-2.12/lib/runmode.js
  8. +124 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/css/css.js
  9. +56 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/css/index.html
  10. +79 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/htmlmixed/htmlmixed.js
  11. +52 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/htmlmixed/index.html
  12. +78 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/javascript/index.html
  13. +348 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/javascript/javascript.js
  14. +21 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/python/LICENSE.txt
  15. +123 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/python/index.html
  16. +321 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/python/python.js
  17. +526 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/rst/index.html
  18. +75 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/rst/rst.css
  19. +333 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/rst/rst.js
  20. +42 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/xml/index.html
  21. +231 −0 IPython/frontend/html/notebook/static/codemirror-2.12/mode/xml/xml.js
  22. +18 −0 IPython/frontend/html/notebook/static/codemirror-2.12/theme/default.css
  23. +9 −0 IPython/frontend/html/notebook/static/codemirror-2.12/theme/elegant.css
  24. +41 −0 IPython/frontend/html/notebook/static/codemirror-2.12/theme/ipython.css
  25. +8 −0 IPython/frontend/html/notebook/static/codemirror-2.12/theme/neat.css
  26. +20 −0 IPython/frontend/html/notebook/static/codemirror-2.12/theme/night.css
  27. +11 −13 IPython/frontend/html/notebook/static/css/notebook.css
  28. +9 −0 IPython/frontend/html/notebook/static/js/codecell.js
  29. +2 −0  IPython/frontend/html/notebook/static/js/htmlcell.js
  30. +10 −4 IPython/frontend/html/notebook/templates/notebook.html
19 IPython/frontend/html/notebook/static/codemirror-2.12/LICENSE
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+Copyright (C) 2011 by Marijn Haverbeke <marijnh@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
6 IPython/frontend/html/notebook/static/codemirror-2.12/README.md
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+# CodeMirror 2
+
+CodeMirror 2 is a rewrite of [CodeMirror
+1](http://github.com/marijnh/CodeMirror). The docs live
+[here](http://codemirror.net/manual.html), and the project page is
+[http://codemirror.net/](http://codemirror.net/).
17 IPython/frontend/html/notebook/static/codemirror-2.12/lib/Untitled0.ipynb
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+<?xml version="1.0" encoding="utf-8"?>
+<notebook>
+ <name>Untitled0</name>
+ <id>29302174-c688-4580-b694-1e786ef3ca1f</id>
+ <nbformat>2</nbformat>
+ <worksheets>
+ <worksheet>
+ <cells>
+ <codecell>
+ <input />
+ <language>python</language>
+ <outputs />
+ </codecell>
+ </cells>
+ </worksheet>
+ </worksheets>
+</notebook>
67 IPython/frontend/html/notebook/static/codemirror-2.12/lib/codemirror.css
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+.CodeMirror {
+ line-height: 1em;
+ font-family: monospace;
+}
+
+.CodeMirror-scroll {
+ overflow: auto;
+ height: 300px;
+ /* This is needed to prevent an IE[67] bug where the scrolled content
+ is visible outside of the scrolling box. */
+ position: relative;
+}
+
+.CodeMirror-gutter {
+ position: absolute; left: 0; top: 0;
+ background-color: #f7f7f7;
+ border-right: 1px solid #eee;
+ min-width: 2em;
+ height: 100%;
+}
+.CodeMirror-gutter-text {
+ color: #aaa;
+ text-align: right;
+ padding: .4em .2em .4em .4em;
+}
+.CodeMirror-lines {
+ padding: .4em;
+}
+
+.CodeMirror pre {
+ -moz-border-radius: 0;
+ -webkit-border-radius: 0;
+ -o-border-radius: 0;
+ border-radius: 0;
+ border-width: 0; margin: 0; padding: 0; background: transparent;
+ font-family: inherit;
+ font-size: inherit;
+ padding: 0; margin: 0;
+ white-space: pre;
+ word-wrap: normal;
+}
+
+.CodeMirror textarea {
+ font-family: inherit !important;
+ font-size: inherit !important;
+}
+
+.CodeMirror-cursor {
+ z-index: 10;
+ position: absolute;
+ visibility: hidden;
+ border-left: 1px solid black !important;
+}
+.CodeMirror-focused .CodeMirror-cursor {
+ visibility: visible;
+}
+
+span.CodeMirror-selected {
+ background: #ccc !important;
+ color: HighlightText !important;
+}
+.CodeMirror-focused span.CodeMirror-selected {
+ background: Highlight !important;
+}
+
+.CodeMirror-matchingbracket {color: #0f0 !important;}
+.CodeMirror-nonmatchingbracket {color: #f22 !important;}
2,144 IPython/frontend/html/notebook/static/codemirror-2.12/lib/codemirror.js
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+// All functions that need access to the editor's state live inside
+// the CodeMirror function. Below that, at the bottom of the file,
+// some utilities are defined.
+
+// CodeMirror is the only global var we claim
+var CodeMirror = (function() {
+ // This is the function that produces an editor instance. It's
+ // closure is used to store the editor state.
+ function CodeMirror(place, givenOptions) {
+ // Determine effective options based on given values and defaults.
+ var options = {}, defaults = CodeMirror.defaults;
+ for (var opt in defaults)
+ if (defaults.hasOwnProperty(opt))
+ options[opt] = (givenOptions && givenOptions.hasOwnProperty(opt) ? givenOptions : defaults)[opt];
+
+ var targetDocument = options["document"];
+ // The element in which the editor lives.
+ var wrapper = targetDocument.createElement("div");
+ wrapper.className = "CodeMirror";
+ // This mess creates the base DOM structure for the editor.
+ wrapper.innerHTML =
+ '<div style="overflow: hidden; position: relative; width: 1px; height: 0px;">' + // Wraps and hides input textarea
+ '<textarea style="position: absolute; width: 2px;" wrap="off"></textarea></div>' +
+ '<div class="CodeMirror-scroll cm-s-' + options.theme + '">' +
+ '<div style="position: relative">' + // Set to the height of the text, causes scrolling
+ '<div style="position: absolute; height: 0; width: 0; overflow: hidden;"></div>' +
+ '<div style="position: relative">' + // Moved around its parent to cover visible view
+ '<div class="CodeMirror-gutter"><div class="CodeMirror-gutter-text"></div></div>' +
+ // Provides positioning relative to (visible) text origin
+ '<div class="CodeMirror-lines"><div style="position: relative">' +
+ '<pre class="CodeMirror-cursor">&#160;</pre>' + // Absolutely positioned blinky cursor
+ '<div></div>' + // This DIV contains the actual code
+ '</div></div></div></div></div>';
+ if (place.appendChild) place.appendChild(wrapper); else place(wrapper);
+ // I've never seen more elegant code in my life.
+ var inputDiv = wrapper.firstChild, input = inputDiv.firstChild,
+ scroller = wrapper.lastChild, code = scroller.firstChild,
+ measure = code.firstChild, mover = measure.nextSibling,
+ gutter = mover.firstChild, gutterText = gutter.firstChild,
+ lineSpace = gutter.nextSibling.firstChild,
+ cursor = lineSpace.firstChild, lineDiv = cursor.nextSibling;
+ if (options.tabindex != null) input.tabindex = options.tabindex;
+ if (!options.gutter && !options.lineNumbers) gutter.style.display = "none";
+
+ // Delayed object wrap timeouts, making sure only one is active. blinker holds an interval.
+ var poll = new Delayed(), highlight = new Delayed(), blinker;
+
+ // mode holds a mode API object. lines an array of Line objects
+ // (see Line constructor), work an array of lines that should be
+ // parsed, and history the undo history (instance of History
+ // constructor).
+ var mode, lines = [new Line("")], work, history = new History(), focused;
+ loadMode();
+ // The selection. These are always maintained to point at valid
+ // positions. Inverted is used to remember that the user is
+ // selecting bottom-to-top.
+ var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false};
+ // Selection-related flags. shiftSelecting obviously tracks
+ // whether the user is holding shift. reducedSelection is a hack
+ // to get around the fact that we can't create inverted
+ // selections. See below.
+ var shiftSelecting, reducedSelection, lastDoubleClick;
+ // Variables used by startOperation/endOperation to track what
+ // happened during the operation.
+ var updateInput, changes, textChanged, selectionChanged, leaveInputAlone;
+ // Current visible range (may be bigger than the view window).
+ var showingFrom = 0, showingTo = 0, lastHeight = 0, curKeyId = null;
+ // editing will hold an object describing the things we put in the
+ // textarea, to help figure out whether something changed.
+ // bracketHighlighted is used to remember that a backet has been
+ // marked.
+ var editing, bracketHighlighted;
+ // Tracks the maximum line length so that the horizontal scrollbar
+ // can be kept static when scrolling.
+ var maxLine = "", maxWidth;
+
+ // Initialize the content.
+ operation(function(){setValue(options.value || ""); updateInput = false;})();
+
+ // Register our event handlers.
+ connect(scroller, "mousedown", operation(onMouseDown));
+ // Gecko browsers fire contextmenu *after* opening the menu, at
+ // which point we can't mess with it anymore. Context menu is
+ // handled in onMouseDown for Gecko.
+ if (!gecko) connect(scroller, "contextmenu", onContextMenu);
+ connect(code, "dblclick", operation(onDblClick));
+ connect(scroller, "scroll", function() {updateDisplay([]); if (options.onScroll) options.onScroll(instance);});
+ connect(window, "resize", function() {updateDisplay(true);});
+ connect(input, "keyup", operation(onKeyUp));
+ connect(input, "keydown", operation(onKeyDown));
+ connect(input, "keypress", operation(onKeyPress));
+ connect(input, "focus", onFocus);
+ connect(input, "blur", onBlur);
+
+ connect(scroller, "dragenter", e_stop);
+ connect(scroller, "dragover", e_stop);
+ connect(scroller, "drop", operation(onDrop));
+ connect(scroller, "paste", function(){focusInput(); fastPoll();});
+ connect(input, "paste", function(){fastPoll();});
+ connect(input, "cut", function(){fastPoll();});
+
+ // IE throws unspecified error in certain cases, when
+ // trying to access activeElement before onload
+ var hasFocus; try { hasFocus = (targetDocument.activeElement == input); } catch(e) { }
+ if (hasFocus) setTimeout(onFocus, 20);
+ else onBlur();
+
+ function isLine(l) {return l >= 0 && l < lines.length;}
+ // The instance object that we'll return. Mostly calls out to
+ // local functions in the CodeMirror function. Some do some extra
+ // range checking and/or clipping. operation is used to wrap the
+ // call so that changes it makes are tracked, and the display is
+ // updated afterwards.
+ var instance = {
+ getValue: getValue,
+ setValue: operation(setValue),
+ getSelection: getSelection,
+ replaceSelection: operation(replaceSelection),
+ focus: function(){focusInput(); onFocus(); fastPoll();},
+ setOption: function(option, value) {
+ options[option] = value;
+ if (option == "lineNumbers" || option == "gutter") gutterChanged();
+ else if (option == "mode" || option == "indentUnit") loadMode();
+ else if (option == "readOnly" && value == "nocursor") input.blur();
+ else if (option == "theme") scroller.className = scroller.className.replace(/cm-s-\w+/, "cm-s-" + value);
+ },
+ getOption: function(option) {return options[option];},
+ undo: operation(undo),
+ redo: operation(redo),
+ indentLine: operation(function(n) {if (isLine(n)) indentLine(n, "smart");}),
+ historySize: function() {return {undo: history.done.length, redo: history.undone.length};},
+ matchBrackets: operation(function(){matchBrackets(true);}),
+ getTokenAt: function(pos) {
+ pos = clipPos(pos);
+ return lines[pos.line].getTokenAt(mode, getStateBefore(pos.line), pos.ch);
+ },
+ getStateAfter: function(line) {
+ line = clipLine(line == null ? lines.length - 1: line);
+ return getStateBefore(line + 1);
+ },
+ cursorCoords: function(start){
+ if (start == null) start = sel.inverted;
+ return pageCoords(start ? sel.from : sel.to);
+ },
+ charCoords: function(pos){return pageCoords(clipPos(pos));},
+ coordsChar: function(coords) {
+ var off = eltOffset(lineSpace);
+ var line = clipLine(Math.min(lines.length - 1, showingFrom + Math.floor((coords.y - off.top) / lineHeight())));
+ return clipPos({line: line, ch: charFromX(clipLine(line), coords.x - off.left)});
+ },
+ getSearchCursor: function(query, pos, caseFold) {return new SearchCursor(query, pos, caseFold);},
+ markText: operation(function(a, b, c){return operation(markText(a, b, c));}),
+ setMarker: addGutterMarker,
+ clearMarker: removeGutterMarker,
+ setLineClass: operation(setLineClass),
+ lineInfo: lineInfo,
+ addWidget: function(pos, node, scroll, where) {
+ pos = localCoords(clipPos(pos));
+ var top = pos.yBot, left = pos.x;
+ node.style.position = "absolute";
+ code.appendChild(node);
+ node.style.left = left + "px";
+ if (where == "over") top = pos.y;
+ else if (where == "near") {
+ var vspace = Math.max(scroller.offsetHeight, lines.length * lineHeight()),
+ hspace = Math.max(code.clientWidth, lineSpace.clientWidth) - paddingLeft();
+ if (pos.yBot + node.offsetHeight > vspace && pos.y > node.offsetHeight)
+ top = pos.y - node.offsetHeight;
+ if (left + node.offsetWidth > hspace)
+ left = hspace - node.offsetWidth;
+ }
+ node.style.top = (top + paddingTop()) + "px";
+ node.style.left = (left + paddingLeft()) + "px";
+ if (scroll)
+ scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight);
+ },
+
+ lineCount: function() {return lines.length;},
+ getCursor: function(start) {
+ if (start == null) start = sel.inverted;
+ return copyPos(start ? sel.from : sel.to);
+ },
+ somethingSelected: function() {return !posEq(sel.from, sel.to);},
+ setCursor: operation(function(line, ch) {
+ if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch);
+ else setCursor(line, ch);
+ }),
+ setSelection: operation(function(from, to) {setSelection(clipPos(from), clipPos(to || from));}),
+ getLine: function(line) {if (isLine(line)) return lines[line].text;},
+ setLine: operation(function(line, text) {
+ if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: lines[line].text.length});
+ }),
+ removeLine: operation(function(line) {
+ if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0}));
+ }),
+ replaceRange: operation(replaceRange),
+ getRange: function(from, to) {return getRange(clipPos(from), clipPos(to));},
+
+ operation: function(f){return operation(f)();},
+ refresh: function(){updateDisplay(true);},
+ getInputField: function(){return input;},
+ getWrapperElement: function(){return wrapper;},
+ getScrollerElement: function(){return scroller;}
+ };
+
+ function setValue(code) {
+ history = null;
+ var top = {line: 0, ch: 0};
+ updateLines(top, {line: lines.length - 1, ch: lines[lines.length-1].text.length},
+ splitLines(code), top, top);
+ history = new History();
+ }
+ function getValue(code) {
+ var text = [];
+ for (var i = 0, l = lines.length; i < l; ++i)
+ text.push(lines[i].text);
+ return text.join("\n");
+ }
+
+ function onMouseDown(e) {
+ // Check whether this is a click in a widget
+ for (var n = e_target(e); n != wrapper; n = n.parentNode)
+ if (n.parentNode == code && n != mover) return;
+ var ld = lastDoubleClick; lastDoubleClick = null;
+ // First, see if this is a click in the gutter
+ for (var n = e_target(e); n != wrapper; n = n.parentNode)
+ if (n.parentNode == gutterText) {
+ if (options.onGutterClick)
+ options.onGutterClick(instance, indexOf(gutterText.childNodes, n) + showingFrom);
+ return e_preventDefault(e);
+ }
+
+ var start = posFromMouse(e);
+
+ switch (e_button(e)) {
+ case 3:
+ if (gecko && !mac) onContextMenu(e);
+ return;
+ case 2:
+ if (start) setCursor(start.line, start.ch, true);
+ return;
+ }
+ // For button 1, if it was clicked inside the editor
+ // (posFromMouse returning non-null), we have to adjust the
+ // selection.
+ if (!start) {if (e_target(e) == scroller) e_preventDefault(e); return;}
+
+ if (!focused) onFocus();
+ e_preventDefault(e);
+ if (ld && +new Date - ld < 400) return selectLine(start.line);
+
+ setCursor(start.line, start.ch, true);
+ var last = start, going;
+ // And then we have to see if it's a drag event, in which case
+ // the dragged-over text must be selected.
+ function end() {
+ focusInput();
+ updateInput = true;
+ move(); up();
+ }
+ function extend(e) {
+ var cur = posFromMouse(e, true);
+ if (cur && !posEq(cur, last)) {
+ if (!focused) onFocus();
+ last = cur;
+ setSelectionUser(start, cur);
+ updateInput = false;
+ var visible = visibleLines();
+ if (cur.line >= visible.to || cur.line < visible.from)
+ going = setTimeout(operation(function(){extend(e);}), 150);
+ }
+ }
+
+ var move = connect(targetDocument, "mousemove", operation(function(e) {
+ clearTimeout(going);
+ e_preventDefault(e);
+ extend(e);
+ }), true);
+ var up = connect(targetDocument, "mouseup", operation(function(e) {
+ clearTimeout(going);
+ var cur = posFromMouse(e);
+ if (cur) setSelectionUser(start, cur);
+ e_preventDefault(e);
+ end();
+ }), true);
+ }
+ function onDblClick(e) {
+ var pos = posFromMouse(e);
+ if (!pos) return;
+ selectWordAt(pos);
+ e_preventDefault(e);
+ lastDoubleClick = +new Date;
+ }
+ 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) replaceRange(text.join(""), clipPos(pos), clipPos(pos));
+ };
+ 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) replaceRange(text, pos, pos);
+ }
+ catch(e){}
+ }
+ }
+ function onKeyDown(e) {
+ if (!focused) onFocus();
+
+ var code = e.keyCode;
+ // IE does strange things with escape.
+ if (ie && code == 27) { e.returnValue = false; }
+ // Tries to detect ctrl on non-mac, cmd on mac.
+ var mod = (mac ? e.metaKey : e.ctrlKey) && !e.altKey, anyMod = e.ctrlKey || e.altKey || e.metaKey;
+ if (code == 16 || e.shiftKey) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
+ else shiftSelecting = null;
+ // First give onKeyEvent option a chance to handle this.
+ if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
+
+ if (code == 33 || code == 34) {scrollPage(code == 34); return e_preventDefault(e);} // page up/down
+ if (mod && ((code == 36 || code == 35) || // ctrl-home/end
+ mac && (code == 38 || code == 40))) { // cmd-up/down
+ scrollEnd(code == 36 || code == 38); return e_preventDefault(e);
+ }
+ if (mod && code == 65) {selectAll(); return e_preventDefault(e);} // ctrl-a
+ if (!options.readOnly) {
+ if (!anyMod && code == 13) {return;} // enter
+ if (!anyMod && code == 9 && handleTab(e.shiftKey)) return e_preventDefault(e); // tab
+ if (mod && code == 90) {undo(); return e_preventDefault(e);} // ctrl-z
+ if (mod && ((e.shiftKey && code == 90) || code == 89)) {redo(); return e_preventDefault(e);} // ctrl-shift-z, ctrl-y
+ }
+
+ // Key id to use in the movementKeys map. We also pass it to
+ // fastPoll in order to 'self learn'. We need this because
+ // reducedSelection, the hack where we collapse the selection to
+ // its start when it is inverted and a movement key is pressed
+ // (and later restore it again), shouldn't be used for
+ // non-movement keys.
+ curKeyId = (mod ? "c" : "") + code;
+ if (sel.inverted && movementKeys.hasOwnProperty(curKeyId)) {
+ var range = selRange(input);
+ if (range) {
+ reducedSelection = {anchor: range.start};
+ setSelRange(input, range.start, range.start);
+ }
+ }
+ fastPoll(curKeyId);
+ }
+ function onKeyUp(e) {
+ if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
+ if (reducedSelection) {
+ reducedSelection = null;
+ updateInput = true;
+ }
+ if (e.keyCode == 16) shiftSelecting = null;
+ }
+ function onKeyPress(e) {
+ if (options.onKeyEvent && options.onKeyEvent(instance, addStop(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");}), 50);
+ }
+ var code = e.keyCode;
+ // Re-stop tab and enter. Necessary on some browsers.
+ if (code == 13) {if (!options.readOnly) handleEnter(); e_preventDefault(e);}
+ else if (!e.ctrlKey && !e.altKey && !e.metaKey && code == 9 && options.tabMode != "default") e_preventDefault(e);
+ else fastPoll(curKeyId);
+ }
+
+ function onFocus() {
+ if (options.readOnly == "nocursor") 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) prepareInput();
+ }
+ 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 = [];
+ for (var i = from.line, e = to.line + 1; i < e; ++i) old.push(lines[i].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;
+ for (var i = change.start; i < end; ++i) replaced.push(lines[i].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: lines[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;
+ for (var i = from.line; i <= to.line; ++i) {
+ if (lines[i].text.length == maxLineLength) {recomputeMaxLength = true; break;}
+ }
+
+ var nlines = to.line - from.line, firstLine = lines[from.line], lastLine = lines[to.line];
+ // First adjust the line structure, taking some care to leave highlighting intact.
+ 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]);
+ var spliceargs = [from.line + 1, nlines];
+ firstLine.replace(from.ch, firstLine.text.length, newText[0]);
+ for (var i = 1, e = newText.length - 1; i < e; ++i) spliceargs.push(new Line(newText[i]));
+ spliceargs.push(lastLine);
+ lines.splice.apply(lines, spliceargs);
+ }
+ }
+ else if (newText.length == 1) {
+ firstLine.replace(from.ch, firstLine.text.length, newText[0] + lastLine.text.slice(to.ch));
+ lines.splice(from.line + 1, nlines);
+ }
+ else {
+ var spliceargs = [from.line + 1, nlines - 1];
+ firstLine.replace(from.ch, firstLine.text.length, newText[0]);
+ lastLine.replace(0, to.ch, newText[newText.length-1]);
+ for (var i = 1, e = newText.length - 1; i < e; ++i) spliceargs.push(new Line(newText[i]));
+ lines.splice.apply(lines, spliceargs);
+ }
+
+
+ for (var i = from.line, e = i + newText.length; i < e; ++i) {
+ var l = lines[i].text;
+ if (l.length > maxLineLength) {
+ maxLine = l; maxLineLength = l.length; maxWidth = null;
+ recomputeMaxLength = false;
+ }
+ }
+ if (recomputeMaxLength) {
+ maxLineLength = 0; maxLine = ""; maxWidth = null;
+ for (var i = 0, e = lines.length; i < e; ++i) {
+ var l = lines[i].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);
+ }
+ if (newText.length < 5) {
+ highlightLines(from.line, from.line + newText.length);
+ newWork.push(from.line + newText.length);
+ } else {
+ newWork.push(from.line);
+ }
+ work = newWork;
+ startWorker(100);
+ // Remember that these lines changed, for updating the display
+ changes.push({from: from.line, to: to.line + 1, diff: lendiff});
+ textChanged = {from: from, to: to, text: newText};
+
+ // 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 = (lines.length * lineHeight() + 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 lines[l1].text.slice(from.ch, to.ch);
+ var code = [lines[l1].text.slice(from.ch)];
+ for (var i = l1 + 1; i < l2; ++i) code.push(lines[i].text);
+ code.push(lines[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(2000, function() {
+ startOperation();
+ readInput();
+ if (focused) slowPoll();
+ endOperation();
+ });
+ }
+ function fastPoll(keyId) {
+ var missed = false;
+ pollingFast = true;
+ function p() {
+ startOperation();
+ var changed = readInput();
+ if (changed == "moved" && keyId) movementKeys[keyId] = true;
+ if (!changed && !missed) {missed = true; poll.set(80, p);}
+ else {pollingFast = false; slowPoll();}
+ endOperation();
+ }
+ poll.set(20, p);
+ }
+
+ // Inspects the textarea, compares its state (content, selection)
+ // to the data in the editing variable, and updates the editor
+ // content or cursor if something changed.
+ function readInput() {
+ if (leaveInputAlone || !focused) return;
+ var changed = false, text = input.value, sr = selRange(input);
+ if (!sr) return false;
+ var changed = editing.text != text, rs = reducedSelection;
+ var moved = changed || sr.start != editing.start || sr.end != (rs ? editing.start : editing.end);
+ if (!moved && !rs) return false;
+ if (changed) {
+ shiftSelecting = reducedSelection = null;
+ if (options.readOnly) {updateInput = true; return "changed";}
+ }
+
+ // Compute selection start and end based on start/end offsets in textarea
+ function computeOffset(n, startLine) {
+ var pos = 0;
+ for (;;) {
+ var found = text.indexOf("\n", pos);
+ if (found == -1 || (text.charAt(found-1) == "\r" ? found - 1 : found) >= n)
+ return {line: startLine, ch: n - pos};
+ ++startLine;
+ pos = found + 1;
+ }
+ }
+ var from = computeOffset(sr.start, editing.from),
+ to = computeOffset(sr.end, editing.from);
+ // Here we have to take the reducedSelection hack into account,
+ // so that you can, for example, press shift-up at the start of
+ // your selection and have the right thing happen.
+ if (rs) {
+ var head = sr.start == rs.anchor ? to : from;
+ var tail = shiftSelecting ? sel.to : sr.start == rs.anchor ? from : to;
+ if (sel.inverted = posLess(head, tail)) { from = head; to = tail; }
+ else { reducedSelection = null; from = tail; to = head; }
+ }
+
+ // In some cases (cursor on same line as before), we don't have
+ // to update the textarea content at all.
+ if (from.line == to.line && from.line == sel.from.line && from.line == sel.to.line && !shiftSelecting)
+ updateInput = false;
+
+ // Magic mess to extract precise edited range from the changed
+ // string.
+ if (changed) {
+ var start = 0, end = text.length, len = Math.min(end, editing.text.length);
+ var c, line = editing.from, nl = -1;
+ while (start < len && (c = text.charAt(start)) == editing.text.charAt(start)) {
+ ++start;
+ if (c == "\n") {line++; nl = start;}
+ }
+ var ch = nl > -1 ? start - nl : start, endline = editing.to - 1, edend = editing.text.length;
+ for (;;) {
+ c = editing.text.charAt(edend);
+ if (text.charAt(end) != c) {++end; ++edend; break;}
+ if (c == "\n") endline--;
+ if (edend <= start || end <= start) break;
+ --end; --edend;
+ }
+ var nl = editing.text.lastIndexOf("\n", edend - 1), endch = nl == -1 ? edend : edend - nl - 1;
+ updateLines({line: line, ch: ch}, {line: endline, ch: endch}, splitLines(text.slice(start, end)), from, to);
+ if (line != endline || from.line != line) updateInput = true;
+ }
+ else setSelection(from, to);
+
+ editing.text = text; editing.start = sr.start; editing.end = sr.end;
+ return changed ? "changed" : moved ? "moved" : false;
+ }
+
+ // Set the textarea content and selection range to match the
+ // editor state.
+ function prepareInput() {
+ var text = [];
+ var from = Math.max(0, sel.from.line - 1), to = Math.min(lines.length, sel.to.line + 2);
+ for (var i = from; i < to; ++i) text.push(lines[i].text);
+ text = input.value = text.join(lineSep);
+ var startch = sel.from.ch, endch = sel.to.ch;
+ for (var i = from; i < sel.from.line; ++i)
+ startch += lineSep.length + lines[i].text.length;
+ for (var i = from; i < sel.to.line; ++i)
+ endch += lineSep.length + lines[i].text.length;
+ editing = {text: text, from: from, to: to, start: startch, end: endch};
+ setSelRange(input, startch, reducedSelection ? startch : endch);
+ }
+ function focusInput() {
+ if (options.readOnly != "nocursor") input.focus();
+ }
+
+ function scrollCursorIntoView() {
+ var cursor = localCoords(sel.inverted ? sel.from : sel.to);
+ return scrollIntoView(cursor.x, cursor.y, cursor.x, cursor.yBot);
+ }
+ function scrollIntoView(x1, y1, x2, y2) {
+ var pl = paddingLeft(), pt = paddingTop(), lh = lineHeight();
+ 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;
+ if (x1 < screenleft) {
+ if (x1 < 50) x1 = 0;
+ scroller.scrollLeft = Math.max(0, x1 - 10);
+ scrolled = true;
+ }
+ else if (x2 > screenw + screenleft) {
+ 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 = lineHeight(), top = scroller.scrollTop - paddingTop();
+ return {from: Math.min(lines.length, Math.max(0, Math.floor(top / lh))),
+ to: Math.min(lines.length, Math.ceil((top + scroller.clientHeight) / lh))};
+ }
+ // 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) {
+ if (!scroller.clientWidth) {
+ showingFrom = showingTo = 0;
+ return;
+ }
+ // First create a range of theoretically intact lines, and punch
+ // holes in that using the change info.
+ var intact = changes === true ? [] : [{from: showingFrom, to: showingTo, domStart: 0}];
+ 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)
+ intact2.push({from: range.from + diff, to: range.to + diff, domStart: range.domStart});
+ else if (range.to <= change.from)
+ 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;
+ }
+
+ // Then, determine which lines we'd want to see, and which
+ // updates have to be made to get there.
+ var visible = visibleLines();
+ var from = Math.min(showingFrom, Math.max(visible.from - 3, 0)),
+ to = Math.min(lines.length, Math.max(showingTo, visible.to + 3)),
+ updates = [], domPos = 0, domEnd = showingTo - showingFrom, pos = from, changedLines = 0;
+
+ for (var i = 0, l = intact.length; i < l; ++i) {
+ var range = intact[i];
+ if (range.to <= from) continue;
+ if (range.from >= to) break;
+ if (range.domStart > domPos || range.from > pos) {
+ updates.push({from: pos, to: range.from, domSize: range.domStart - domPos, domStart: domPos});
+ changedLines += range.from - pos;
+ }
+ pos = range.to;
+ domPos = range.domStart + (range.to - range.from);
+ }
+ if (domPos != domEnd || pos != to) {
+ changedLines += Math.abs(to - pos);
+ updates.push({from: pos, to: to, domSize: domEnd - domPos, domStart: domPos});
+ }
+
+ if (!updates.length) return;
+ lineDiv.style.display = "none";
+ // If more than 30% of the screen needs update, just do a full
+ // redraw (which is quicker than patching)
+ if (changedLines > (visible.to - visible.from) * .3)
+ refreshDisplay(from = Math.max(visible.from - 10, 0), to = Math.min(visible.to + 7, lines.length));
+ // Otherwise, only update the stuff that needs updating.
+ else
+ patchDisplay(updates);
+ 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 || lastHeight != scroller.clientHeight;
+ showingFrom = from; showingTo = to;
+ mover.style.top = (from * lineHeight()) + "px";
+ if (different) {
+ lastHeight = scroller.clientHeight;
+ code.style.height = (lines.length * lineHeight() + 2 * paddingTop()) + "px";
+ updateGutter();
+ }
+
+ 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 = "";
+ }
+
+ // 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(updates) + " size=" + (showingTo - showingFrom) +
+ " nodes=" + lineDiv.childNodes.length);
+ updateCursor();
+ }
+
+ function refreshDisplay(from, to) {
+ var html = [], start = {line: from, ch: 0}, inSel = posLess(sel.from, start) && !posLess(sel.to, start);
+ for (var i = from; i < to; ++i) {
+ var ch1 = null, ch2 = null;
+ if (inSel) {
+ ch1 = 0;
+ if (sel.to.line == i) {inSel = false; ch2 = sel.to.ch;}
+ }
+ else if (sel.from.line == i) {
+ if (sel.to.line == i) {ch1 = sel.from.ch; ch2 = sel.to.ch;}
+ else {inSel = true; ch1 = sel.from.ch;}
+ }
+ html.push(lines[i].getHTML(ch1, ch2, true));
+ }
+ lineDiv.innerHTML = html.join("");
+ }
+ function patchDisplay(updates) {
+ // Slightly different algorithm for IE (badInnerHTML), since
+ // there .innerHTML on PRE nodes is dumb, and discards
+ // whitespace.
+ var sfrom = sel.from.line, sto = sel.to.line, off = 0,
+ scratch = badInnerHTML && targetDocument.createElement("div");
+ for (var i = 0, e = updates.length; i < e; ++i) {
+ var rec = updates[i];
+ var extra = (rec.to - rec.from) - rec.domSize;
+ var nodeAfter = lineDiv.childNodes[rec.domStart + rec.domSize + off] || null;
+ if (badInnerHTML)
+ for (var j = Math.max(-extra, rec.domSize); j > 0; --j)
+ lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild);
+ else if (extra) {
+ for (var j = Math.max(0, extra); j > 0; --j)
+ lineDiv.insertBefore(targetDocument.createElement("pre"), nodeAfter);
+ for (var j = Math.max(0, -extra); j > 0; --j)
+ lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild);
+ }
+ var node = lineDiv.childNodes[rec.domStart + off], inSel = sfrom < rec.from && sto >= rec.from;
+ for (var j = rec.from; j < rec.to; ++j) {
+ 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 (badInnerHTML) {
+ scratch.innerHTML = lines[j].getHTML(ch1, ch2, true);
+ lineDiv.insertBefore(scratch.firstChild, nodeAfter);
+ }
+ else {
+ node.innerHTML = lines[j].getHTML(ch1, ch2, false);
+ node.className = lines[j].className || "";
+ node = node.nextSibling;
+ }
+ }
+ off += extra;
+ }
+ }
+
+ 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 = [];
+ for (var i = showingFrom; i < Math.max(showingTo, showingFrom + 1); ++i) {
+ var marker = lines[i].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, "</pre>");
+ }
+ gutter.style.display = "none";
+ gutterText.innerHTML = html.join("");
+ var minwidth = String(lines.length).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";
+ }
+ function updateCursor() {
+ var head = sel.inverted ? sel.from : sel.to, lh = lineHeight();
+ var x = charX(head.line, head.ch) + "px", y = (head.line - showingFrom) * lh + "px";
+ inputDiv.style.top = (head.line * lh - scroller.scrollTop) + "px";
+ if (posEq(sel.from, sel.to)) {
+ cursor.style.top = y; cursor.style.left = x;
+ cursor.style.display = "";
+ }
+ else cursor.style.display = "none";
+ }
+
+ 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);
+ }
+ // 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) {
+ if (posEq(sel.from, from) && posEq(sel.to, to)) return;
+ if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}
+
+ 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 (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
+ 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 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, lines.length-1));}
+ function clipPos(pos) {
+ if (pos.line < 0) return {line: 0, ch: 0};
+ if (pos.line >= lines.length) return {line: lines.length-1, ch: lines[lines.length-1].text.length};
+ var ch = pos.ch, linelen = lines[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 scrollPage(down) {
+ var linesPerPage = Math.floor(scroller.clientHeight / lineHeight()), head = sel.inverted ? sel.from : sel.to;
+ setCursor(head.line + (Math.max(linesPerPage - 1, 1) * (down ? 1 : -1)), head.ch, true);
+ }
+ function scrollEnd(top) {
+ var pos = top ? {line: 0, ch: 0} : {line: lines.length - 1, ch: lines[lines.length-1].text.length};
+ setSelectionUser(pos, pos);
+ }
+ function selectAll() {
+ var endLine = lines.length - 1;
+ setSelection({line: 0, ch: 0}, {line: endLine, ch: lines[endLine].text.length});
+ }
+ function selectWordAt(pos) {
+ var line = lines[pos.line].text;
+ var start = pos.ch, end = pos.ch;
+ while (start > 0 && /\w/.test(line.charAt(start - 1))) --start;
+ while (end < line.length && /\w/.test(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: lines[line].text.length});
+ }
+ function handleEnter() {
+ replaceSelection("\n", "end");
+ if (options.enterMode != "flat")
+ indentLine(sel.from.line, options.enterMode == "keep" ? "prev" : "smart");
+ }
+ function handleTab(shift) {
+ 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);
+ }
+ shiftSelecting = null;
+ switch (options.tabMode) {
+ case "default":
+ return false;
+ case "indent":
+ indentSelected("smart");
+ break;
+ case "classic":
+ if (posEq(sel.from, sel.to)) {
+ if (shift) indentLine(sel.from.line, "smart");
+ else replaceSelection("\t", "end");
+ break;
+ }
+ case "shift":
+ indentSelected(shift ? "subtract" : "add");
+ break;
+ }
+ return true;
+ }
+
+ function indentLine(n, how) {
+ if (how == "smart") {
+ if (!mode.indent) how = "prev";
+ else var state = getStateBefore(n);
+ }
+
+ var line = lines[n], curSpace = line.indentation(), curSpaceString = line.text.match(/^\s*/)[0], indentation;
+ if (how == "prev") {
+ if (n) indentation = lines[n-1].indentation();
+ else indentation = 0;
+ }
+ else if (how == "smart") indentation = mode.indent(state, line.text.slice(curSpaceString.length));
+ 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 / tabSize); i; --i) {pos += 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);
+ for (var i = 0, l = lines.length; i < l; ++i)
+ lines[i].stateAfter = null;
+ work = [0];
+ startWorker();
+ }
+ function gutterChanged() {
+ var visible = options.gutter || options.lineNumbers;
+ gutter.style.display = visible ? "" : "none";
+ if (visible) updateGutter();
+ else lineDiv.parentNode.style.marginLeft = 0;
+ }
+
+ function markText(from, to, className) {
+ from = clipPos(from); to = clipPos(to);
+ var accum = [];
+ function add(line, from, to, className) {
+ var line = lines[line], mark = line.addMark(from, to, className);
+ mark.line = line;
+ accum.push(mark);
+ }
+ 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, 0, null, className);
+ add(to.line, 0, to.ch, className);
+ }
+ changes.push({from: from.line, to: to.line + 1});
+ return function() {
+ var start, end;
+ for (var i = 0; i < accum.length; ++i) {
+ var mark = accum[i], found = indexOf(lines, mark.line);
+ mark.line.removeMark(mark);
+ if (found > -1) {
+ if (start == null) start = found;
+ end = found;
+ }
+ }
+ if (start != null) changes.push({from: start, to: end + 1});
+ };
+ }
+
+ function addGutterMarker(line, text, className) {
+ if (typeof line == "number") line = lines[clipLine(line)];
+ line.gutterMarker = {text: text, style: className};
+ updateGutter();
+ return line;
+ }
+ function removeGutterMarker(line) {
+ if (typeof line == "number") line = lines[clipLine(line)];
+ line.gutterMarker = null;
+ updateGutter();
+ }
+ function setLineClass(line, className) {
+ if (typeof line == "number") {
+ var no = line;
+ line = lines[clipLine(line)];
+ }
+ else {
+ var no = indexOf(lines, line);
+ if (no == -1) return null;
+ }
+ if (line.className != className) {
+ line.className = className;
+ changes.push({from: no, to: no + 1});
+ }
+ return line;
+ }
+
+ function lineInfo(line) {
+ if (typeof line == "number") {
+ var n = line;
+ line = lines[line];
+ if (!line) return null;
+ }
+ else {
+ var n = indexOf(lines, line);
+ if (n == -1) return null;
+ }
+ var marker = line.gutterMarker;
+ return {line: n, text: line.text, markerText: marker && marker.text, markerClass: marker && marker.style};
+ }
+
+ 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 charX(line, pos) {
+ if (pos == 0) return 0;
+ measure.innerHTML = "<pre><span>" + lines[line].getHTML(null, null, false, pos) + "</span></pre>";
+ return measure.firstChild.firstChild.offsetWidth;
+ }
+ function charFromX(line, x) {
+ if (x <= 0) return 0;
+ var lineObj = lines[line], text = lineObj.text;
+ function getX(len) {
+ measure.innerHTML = "<pre><span>" + lineObj.getHTML(null, null, false, 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 / stringWidth("x")));
+ 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;}
+ }
+ }
+
+ function localCoords(pos, inLineWrap) {
+ var lh = lineHeight(), line = pos.line - (inLineWrap ? showingFrom : 0);
+ return {x: charX(pos.line, pos.ch), y: line * lh, yBot: (line + 1) * lh};
+ }
+ 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};
+ }
+
+ function lineHeight() {
+ var nlines = lineDiv.childNodes.length;
+ if (nlines) return (lineDiv.offsetHeight / nlines) || 1;
+ measure.innerHTML = "<pre>x</pre>";
+ return measure.firstChild.offsetHeight || 1;
+ }
+ 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);
+ var line = showingFrom + Math.floor((y - offL.top) / lineHeight());
+ return clipPos({line: line, ch: charFromX(clipLine(line), x - offL.left)});
+ }
+ 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_pageY(e) - 1) +
+ "px; left: " + (e_pageX(e) - 1) + "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();
+ setSelRange(input, 0, input.value.length);
+ 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;
+ prepareInput();
+ 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 = lines[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, lines.length) : Math.max(-1, i - 100); i != e; i+=d) {
+ var line = lines[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)
+ : function() {};
+ var clear = operation(function(){one(); two();});
+ 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 = lines[search-1];
+ if (line.stateAfter) return search;
+ var indented = line.indentation();
+ if (minline == null || minindent > indented) {
+ minline = search;
+ minindent = indented;
+ }
+ }
+ return minline;
+ }
+ function getStateBefore(n) {
+ var start = findStartLine(n), state = start && lines[start-1].stateAfter;
+ if (!state) state = startState(mode);
+ else state = copyState(mode, state);
+ for (var i = start; i < n; ++i) {
+ var line = lines[i];
+ line.highlight(mode, state);
+ line.stateAfter = copyState(mode, state);
+ }
+ if (n < lines.length && !lines[n].stateAfter) work.push(n);
+ return state;
+ }
+ function highlightLines(start, end) {
+ var state = getStateBefore(start);
+ for (var i = start; i < end; ++i) {
+ var line = lines[i];
+ line.highlight(mode, state);
+ line.stateAfter = copyState(mode, state);
+ }
+ }
+ function highlightWorker() {
+ var end = +new Date + options.workTime;
+ var foundWork = work.length;
+ while (work.length) {
+ if (!lines[showingFrom].stateAfter) var task = showingFrom;
+ else var task = work.pop();
+ if (task >= lines.length) continue;
+ var start = findStartLine(task), state = start && lines[start-1].stateAfter;
+ if (state) state = copyState(mode, state);
+ else state = startState(mode);
+
+ var unchanged = 0, compare = mode.compareStates;
+ for (var i = start, l = lines.length; i < l; ++i) {
+ var line = lines[i], hadState = line.stateAfter;
+ if (+new Date > end) {
+ work.push(i);
+ startWorker(options.workDelay);
+ changes.push({from: task, to: i + 1});
+ return;
+ }
+ var changed = line.highlight(mode, state);
+ line.stateAfter = copyState(mode, state);
+ if (compare) {
+ if (hadState && compare(hadState, state)) break;
+ } else {
+ if (changed || !hadState) unchanged = 0;
+ else if (++unchanged > 3) break;
+ }
+ }
+ 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 = null; changes = []; textChanged = selectionChanged = false;
+ }
+ function endOperation() {
+ var reScroll = false;
+ if (selectionChanged) reScroll = !scrollCursorIntoView();
+ if (changes.length) updateDisplay(changes);
+ else if (selectionChanged) updateCursor();
+ if (reScroll) scrollCursorIntoView();
+ if (selectionChanged) restartBlink();
+
+ // updateInput can be set to a boolean value to force/prevent an
+ // update.
+ if (focused && !leaveInputAlone &&
+ (updateInput === true || (updateInput !== false && selectionChanged)))
+ prepareInput();
+
+ if (selectionChanged && options.matchBrackets)
+ setTimeout(operation(function() {
+ if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;}
+ matchBrackets(false);
+ }), 20);
+ var tc = textChanged; // textChanged can be reset by cursoractivity callback
+ if (selectionChanged && options.onCursorActivity)
+ options.onCursorActivity(instance);
+ if (tc && options.onChange && instance)
+ options.onChange(instance, tc);
+ }
+ var nestedOperation = 0;
+ function operation(f) {
+ return function() {
+ if (!nestedOperation++) startOperation();
+ try {var result = f.apply(this, arguments);}
+ finally {if (!--nestedOperation) endOperation();}
+ return result;
+ };
+ }
+
+ function SearchCursor(query, pos, caseFold) {
+ this.atOccurrence = false;
+ if (caseFold == null) caseFold = typeof query == "string" && query == query.toLowerCase();
+
+ if (pos && typeof pos == "object") pos = clipPos(pos);
+ else pos = {line: 0, ch: 0};
+ this.pos = {from: pos, to: pos};
+
+ // The matches method is filled in based on the type of query.
+ // It takes a position and a direction, and returns an object
+ // describing the next occurrence of the query, or null if no
+ // more matches were found.
+ if (typeof query != "string") // Regexp match
+ this.matches = function(reverse, pos) {
+ if (reverse) {
+ var line = lines[pos.line].text.slice(0, pos.ch), match = line.match(query), start = 0;
+ while (match) {
+ var ind = line.indexOf(match[0]);
+ start += ind;
+ line = line.slice(ind + 1);
+ var newmatch = line.match(query);
+ if (newmatch) match = newmatch;
+ else break;
+ start++;
+ }
+ }
+ else {
+ var line = lines[pos.line].text.slice(pos.ch), match = line.match(query),
+ start = match && pos.ch + line.indexOf(match[0]);
+ }
+ if (match)
+ return {from: {line: pos.line, ch: start},
+ to: {line: pos.line, ch: start + match[0].length},
+ match: match};
+ };
+ else { // String query
+ if (caseFold) query = query.toLowerCase();
+ var fold = caseFold ? function(str){return str.toLowerCase();} : function(str){return str;};
+ var target = query.split("\n");
+ // Different methods for single-line and multi-line queries
+ if (target.length == 1)
+ this.matches = function(reverse, pos) {
+ var line = fold(lines[pos.line].text), len = query.length, match;
+ if (reverse ? (pos.ch >= len && (match = line.lastIndexOf(query, pos.ch - len)) != -1)
+ : (match = line.indexOf(query, pos.ch)) != -1)
+ return {from: {line: pos.line, ch: match},
+ to: {line: pos.line, ch: match + len}};
+ };
+ else
+ this.matches = function(reverse, pos) {
+ var ln = pos.line, idx = (reverse ? target.length - 1 : 0), match = target[idx], line = fold(lines[ln].text);
+ var offsetA = (reverse ? line.indexOf(match) + match.length : line.lastIndexOf(match));
+ if (reverse ? offsetA >= pos.ch || offsetA != match.length
+ : offsetA <= pos.ch || offsetA != line.length - match.length)
+ return;
+ for (;;) {
+ if (reverse ? !ln : ln == lines.length - 1) return;
+ line = fold(lines[ln += reverse ? -1 : 1].text);
+ match = target[reverse ? --idx : ++idx];
+ if (idx > 0 && idx < target.length - 1) {
+ if (line != match) return;
+ else continue;
+ }
+ var offsetB = (reverse ? line.lastIndexOf(match) : line.indexOf(match) + match.length);
+ if (reverse ? offsetB != line.length - match.length : offsetB != match.length)
+ return;
+ var start = {line: pos.line, ch: offsetA}, end = {line: ln, ch: offsetB};
+ return {from: reverse ? end : start, to: reverse ? start : end};
+ }
+ };
+ }
+ }
+
+ SearchCursor.prototype = {
+ findNext: function() {return this.find(false);},
+ findPrevious: function() {return this.find(true);},
+
+ find: function(reverse) {
+ var self = this, pos = clipPos(reverse ? this.pos.from : this.pos.to);
+ function savePosAndFail(line) {
+ var pos = {line: line, ch: 0};
+ self.pos = {from: pos, to: pos};
+ self.atOccurrence = false;
+ return false;
+ }
+
+ for (;;) {
+ if (this.pos = this.matches(reverse, pos)) {
+ this.atOccurrence = true;
+ return this.pos.match || true;
+ }
+ if (reverse) {
+ if (!pos.line) return savePosAndFail(0);
+ pos = {line: pos.line-1, ch: lines[pos.line-1].text.length};
+ }
+ else {
+ if (pos.line == lines.length - 1) return savePosAndFail(lines.length);
+ pos = {line: pos.line+1, ch: 0};
+ }
+ }
+ },
+
+ from: function() {if (this.atOccurrence) return copyPos(this.pos.from);},
+ to: function() {if (this.atOccurrence) return copyPos(this.pos.to);},
+
+ replace: function(newText) {
+ var self = this;
+ if (this.atOccurrence)
+ operation(function() {
+ self.pos.to = replaceRange(newText, self.pos.from, self.pos.to);
+ })();
+ }
+ };
+
+ 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,
+ tabMode: "classic",
+ enterMode: "indent",
+ electricChars: true,
+ onKeyEvent: null,
+ lineNumbers: false,
+ gutter: false,
+ firstLineNumber: 1,
+ readOnly: false,
+ onChange: null,
+ onCursorActivity: null,
+ onGutterClick: null,
+ onHighlightComplete: null,
+ onFocus: null, onBlur: null, onScroll: null,
+ matchBrackets: false,
+ workTime: 100,
+ workDelay: 200,
+ undoDepth: 40,
+ tabindex: null,
+ document: window.document
+ };
+
+ // 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(m);
+ return list;
+ };
+
+ var extensions = {};
+ CodeMirror.defineExtension = function(name, func) {
+ extensions[name] = func;
+ };
+
+ 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.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.startState = startState;
+ function startState(mode, a1, a2) {
+ return mode.startState ? mode.startState(a1, a2) : true;
+ }
+ CodeMirror.copyState = copyState;
+
+ // The character stream used by a mode's parser.
+ function StringStream(string) {
+ this.pos = this.start = 0;
+ this.string = string;
+ }
+ 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.start;
+ 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);},
+ indentation: function() {return countColumn(this.string);},
+ 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;
+
+ // 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.stateAfter = null;
+ this.text = text;
+ this.marked = this.gutterMarker = this.className = null;
+ }
+ Line.prototype = {
+ // Replace a piece of a line, keeping the styles around it intact.
+ replace: function(from, to, text) {
+ var st = [], mk = this.marked;
+ 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), end = this.text.length;
+ function fix(n) {return n <= Math.min(to, to + diff) ? n : n + diff;}
+ for (var i = 0; i < mk.length; ++i) {
+ var mark = mk[i], del = false;
+ if (mark.from >= end) del = true;
+ else {mark.from = fix(mark.from); if (mark.to != null) mark.to = fix(mark.to);}
+ if (del || mark.from >= mark.to) {mk.splice(i, 1); i--;}
+ }
+ }
+ },
+ // Split a line in two, again keeping styles intact.
+ split: function(pos, textBefore) {
+ var st = [textBefore, null];
+ copyStyles(pos, this.text.length, this.styles, st);
+ return new Line(textBefore + this.text.slice(pos), st);
+ },
+ addMark: function(from, to, style) {
+ var mk = this.marked, mark = {from: from, to: to, style: style};
+ if (this.marked == null) this.marked = [];
+ this.marked.push(mark);
+ this.marked.sort(function(a, b){return a.from - b.from;});
+ return mark;
+ },
+ removeMark: function(mark) {
+ var mk = this.marked;
+ if (!mk) return;
+ for (var i = 0; i < mk.length; ++i)
+ if (mk[i] == mark) {mk.splice(i, 1); break;}
+ },
+ // 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) {
+ var stream = new StringStream(this.text), 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 always count as changed,
+ // because they are likely to highlight the same way in various
+ // contexts.
+ return changed || (st.length < 5 && this.text.length < 10);
+ },
+ // 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() {return countColumn(this.text);},
+ // Produces an HTML fragment for the line, taking selection,
+ // marking, and highlighting into account.
+ getHTML: function(sfrom, sto, includePre, endAt) {
+ var html = [];
+ if (includePre)
+ html.push(this.className ? '<pre class="' + this.className + '">': "<pre>");
+ function span(text, style) {
+ if (!text) return;
+ if (style) html.push('<span class="', style, '">', htmlEscape(text), "</span>");
+ else html.push(htmlEscape(text));
+ }
+ 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], l = str.length;
+ if (ch + l > len) str = str.slice(0, len - ch);
+ ch += l;
+ span(str, "cm-" + st[i+1]);
+ }
+ 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("");
+ }
+ };
+ // 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;
+ }
+ }
+
+ // 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);}
+ 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;
+ }
+ function e_pageX(e) {
+ if (e.pageX != null) return e.pageX;
+ var doc = e_target(e).ownerDocument;
+ return e.clientX + doc.body.scrollLeft + doc.documentElement.scrollLeft;
+ }
+ function e_pageY(e) {
+ if (e.pageY != null) return e.pageY;
+ var doc = e_target(e).ownerDocument;
+ return e.clientY + doc.body.scrollTop + doc.documentElement.scrollTop;
+ }
+
+ // Event handler registration. If disconnect is true, it'll return a
+ // function that unregisters the handler.
+ function connect(node, type, handler, disconnect) {
+ function wrapHandler(event) {handler(event || window.event);}
+ if (typeof node.addEventListener == "function") {
+ node.addEventListener(type, wrapHandler, false);
+ if (disconnect) return function() {node.removeEventListener(type, wrapHandler, false);};
+ }
+ else {
+ node.attachEvent("on" + type, wrapHandler);
+ if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
+ }
+ }
+
+ function Delayed() {this.id = null;}
+ Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
+
+ // Some IE versions don't preserve whitespace when setting the
+ // innerHTML of a PRE tag.
+ var badInnerHTML = (function() {
+ var pre = document.createElement("pre");
+ pre.innerHTML = " "; return !pre.innerHTML;
+ })();
+
+ var gecko = /gecko\/\d{7}/i.test(navigator.userAgent);
+ var ie = /MSIE \d/.test(navigator.userAgent);
+ var safari = /Apple Computer/.test(navigator.vendor);
+
+ 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";
+ }());
+
+ var tabSize = 8;
+ var mac = /Mac/.test(navigator.platform);
+ var movementKeys = {};
+ for (var i = 35; i <= 40; ++i)
+ movementKeys[i] = movementKeys["c" + i] = true;
+
+ // Counts the column offset in a string, taking tabs into account.
+ // Used mostly to find indentation.
+ function countColumn(string, end) {
+ 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 doc = node.ownerDocument.body;
+ var x = 0, y = 0, skipDoc = false;
+ for (var n = node; n; n = n.offsetParent) {
+ x += n.offsetLeft; y += n.offsetTop;
+ if (screen && computedStyle(n).position == "fixed")
+ skipDoc = true;
+ }
+ var e = screen && !skipDoc ? null : doc;
+ 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};
+ }
+ // 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("div");
+ function htmlEscape(str) {
+ escapeElement.innerText = escapeElement.textContent = 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;
+ }
+
+ // See if "".split is the broken IE version, if so, provide an
+ // alternative way to split lines.
+ var splitLines, selRange, setSelRange;
+ if ("\n\nb".split(/\n/).length != 3)
+ splitLines = 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;
+ };
+ else
+ splitLines = function(string){return string.split(/\r?\n/);};
+ CodeMirror.splitLines = splitLines;
+
+ // Sane model of finding and setting the selection in a textarea
+ if (window.getSelection) {
+ selRange = function(te) {
+ try {return {start: te.selectionStart, end: te.selectionEnd};}
+ catch(e) {return null;}
+ };
+ if (safari)
+ // On Safari, selection set with setSelectionRange are in a sort
+ // of limbo wrt their anchor. If you press shift-left in them,
+ // the anchor is put at the end, and the selection expanded to
+ // the left. If you press shift-right, the anchor ends up at the
+ // front. This is not what CodeMirror wants, so it does a
+ // spurious modify() call to get out of limbo.
+ setSelRange = function(te, start, end) {
+ if (start == end)
+ te.setSelectionRange(start, end);
+ else {
+ te.setSelectionRange(start, end - 1);
+ window.getSelection().modify("extend", "forward", "character");
+ }
+ };
+ else
+ setSelRange = function(te, start, end) {
+ try {te.setSelectionRange(start, end);}
+ catch(e) {} // Fails on Firefox when textarea isn't part of the document
+ };
+ }
+ // IE model. Don't ask.
+ else {
+ selRange = function(te) {
+ try {var range = te.ownerDocument.selection.createRange();}
+ catch(e) {return null;}
+ if (!range || range.parentElement() != te) return null;
+ var val = te.value, len = val.length, localRange = te.createTextRange();
+ localRange.moveToBookmark(range.getBookmark());
+ var endRange = te.createTextRange();
+ endRange.collapse(false);
+
+ if (localRange.compareEndPoints("StartToEnd", endRange) > -1)
+ return {start: len, end: len};
+
+ var start = -localRange.moveStart("character", -len);
+ for (var i = val.indexOf("\r"); i > -1 && i < start; i = val.indexOf("\r", i+1), start++) {}
+
+ if (localRange.compareEndPoints("EndToEnd", endRange) > -1)
+ return {start: start, end: len};
+
+ var end = -localRange.moveEnd("character", -len);
+ for (var i = val.indexOf("\r"); i > -1 && i < end; i = val.indexOf("\r", i+1), end++) {}
+ return {start: start, end: end};
+ };
+ setSelRange = function(te, start, end) {
+ var range = te.createTextRange();
+ range.collapse(true);
+ var endrange = range.duplicate();
+ var newlines = 0, txt = te.value;
+ for (var pos = txt.indexOf("\n"); pos > -1 && pos < start; pos = txt.indexOf("\n", pos + 1))
+ ++newlines;
+ range.move("character", start - newlines);
+ for (; pos > -1 && pos < end; pos = txt.indexOf("\n", pos + 1))
+ ++newlines;
+ endrange.move("character", end - newlines);
+ range.setEndPoint("EndToEnd", endrange);
+ range.select();
+ };
+ }
+
+ CodeMirror.defineMode("null", function() {
+ return {token: function(stream) {stream.skipToEnd();}};
+ });
+ CodeMirror.defineMIME("text/plain", "null");
+
+ return CodeMirror;
+})()
+;
51 IPython/frontend/html/notebook/static/codemirror-2.12/lib/overlay.js
View
@@ -0,0 +1,51 @@
+// Utility function that allows modes to be combined. The mode given
+// as the base argument takes care of most of the normal mode
+// functionality, but a second (typically simple) mode is used, which
+// can override the style of text. Both modes get to parse all of the
+// text, but when both assign a non-null style to a piece of code, the
+// overlay wins, unless the combine argument was true, in which case
+// the styles are combined.
+
+CodeMirror.overlayParser = function(base, overlay, combine) {
+ return {
+ startState: function() {
+ return {
+ base: CodeMirror.startState(base),
+ overlay: CodeMirror.startState(overlay),
+ basePos: 0, baseCur: null,
+ overlayPos: 0, overlayCur: null
+ };
+ },
+ copyState: function(state) {
+ return {
+ base: CodeMirror.copyState(base, state.base),
+ overlay: CodeMirror.copyState(overlay, state.overlay),
+ basePos: state.basePos, baseCur: null,
+ overlayPos: state.overlayPos, overlayCur: null
+ };
+ },
+
+ token: function(stream, state) {
+ if (stream.start == state.basePos) {
+ state.baseCur = base.token(stream, state.base);
+ state.basePos = stream.pos;
+ }
+ if (stream.start == state.overlayPos) {
+ stream.pos = stream.start;
+ state.overlayCur = overlay.token(stream, state.overlay);
+ state.overlayPos = stream.pos;
+ }
+ stream.pos = Math.min(state.basePos, state.overlayPos);
+ if (stream.eol()) state.basePos = state.overlayPos = 0;
+
+ if (state.overlayCur == null) return state.baseCur;
+ if (state.baseCur != null && combine) return state.baseCur + " " + state.overlayCur;
+ else return state.overlayCur;
+ },
+
+ indent: function(state, textAfter) {
+ return base.indent(state.base, textAfter);
+ },
+ electricChars: base.electricChars
+ };
+};
27 IPython/frontend/html/notebook/static/codemirror-2.12/lib/runmode.js
View
@@ -0,0 +1,27 @@
+CodeMirror.runMode = function(string, modespec, callback) {
+ var mode = CodeMirror.getMode({indentUnit: 2}, modespec);
+ var isNode = callback.nodeType == 1;
+ if (isNode) {
+ var node = callback, accum = [];
+ callback = function(string, style) {
+ if (string == "\n")
+ accum.push("<br>");
+ else if (style)
+ accum.push("<span class=\"cm-" + CodeMirror.htmlEscape(style) + "\">" + CodeMirror.htmlEscape(string) + "</span>");
+ else
+ accum.push(CodeMirror.htmlEscape(string));
+ }
+ }
+ var lines = CodeMirror.splitLines(string), state = CodeMirror.startState(mode);
+ for (var i = 0, e = lines.length; i < e; ++i) {
+ if (i) callback("\n");
+ var stream = new CodeMirror.StringStream(lines[i]);
+ while (!stream.eol()) {
+ var style = mode.token(stream, state);
+ callback(stream.current(), style);
+ stream.start = stream.pos;
+ }
+ }
+ if (isNode)
+ node.innerHTML = accum.join("");