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