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-rw-r--r--trunk/infrastructure/ace/README69
-rwxr-xr-xtrunk/infrastructure/ace/bin/backup.sh17
-rwxr-xr-xtrunk/infrastructure/ace/bin/make1
-rwxr-xr-xtrunk/infrastructure/ace/bin/publish.sh19
-rw-r--r--trunk/infrastructure/ace/notes.txt1
-rw-r--r--trunk/infrastructure/ace/www/colorutils.js10
-rw-r--r--trunk/infrastructure/ace/www/contentcollector.js12
-rw-r--r--trunk/infrastructure/ace/www/cssmanager.js18
-rw-r--r--trunk/infrastructure/ace/www/domline.js10
-rw-r--r--trunk/infrastructure/ace/www/easy_sync.js74
-rw-r--r--trunk/infrastructure/ace/www/easysync2.js12
-rw-r--r--trunk/infrastructure/ace/www/easysync2_tests.js12
-rw-r--r--trunk/infrastructure/ace/www/linestylefilter.js12
13 files changed, 151 insertions, 116 deletions
diff --git a/trunk/infrastructure/ace/README b/trunk/infrastructure/ace/README
new file mode 100644
index 0000000..275684f
--- /dev/null
+++ b/trunk/infrastructure/ace/README
@@ -0,0 +1,69 @@
+=====
+ACE2 (originally AppJet Code Editor)
+=====
+
+(This doc started Dec 2009 by dgreenspan.)
+
+ACE2 is EtherPad's editor, a content-editable-based rich text editor
+that supports IE6+, FF(2?/)3+, Safari(3?/)4+. It supports
+collaborative editing using operation transforms (easysync2),
+undo/redo, copy/paste.
+
+The name "ACE2" is because this is a rewrite of aiba's original
+content-editable AppJet Code Editor.
+
+== Building it
+
+In this directory, run `bin/make normal etherpad` (requires scala),
+which generates `build/ace2.js` and copies this and other files into
+the etherpad source tree. To have the script keep running and
+automatically rebuild when source files change, run `bin/make auto
+etherpad`.
+
+The original reason for the build process was that ACE needs to
+construct two nested iframes on the client, and to do this without
+incurring round-trips to the server, it programmatically loads code
+into the outer iframe that loads code into the inner iframe; so the
+bulk of ACE's code is compressed into a string literal (twice). Later
+on, refactoring meant that the source is also divided into more than a
+dozen files that the build script combines, and some are also
+server-side EtherPad modules or client-side libraries (or both).
+
+The master copy of the operational transform (OT) library, easysync2,
+lives here.
+
+In the early days it was possible to run ACE in a sort of development
+mode, without the compression and iframe injection, by running it out
+of the 'www' directory, but this is no longer possible.
+
+== Browser support
+
+We went out of our way to support IE6+. IE's design-mode is quite
+robust, though there are some differences in manipulation of the
+selection and insertion point and in the DOM representation we had to
+use.
+
+We don't support Opera. Opera is a problematic case, because
+apparently JS running in different iframes is run concurrently, not
+linearized into a single event thread. This seems to be a rather
+obscure fact and is almost difficult to believe. As if iframes don't
+complicate scripting enough!
+
+== Syntax highlighting
+
+Though syntax highlighting predated rich text as the original
+motivation for the design of ACE, support was eventually dropped in
+EtherPad. At first the plan was to generalize it to other programming
+languages, but the task was deprioritized (and difficult), and during
+subsequent optimization and refactoring of ACE, calls to the
+incremental lexer were stripped out because they complicated things.
+
+One plan for multi-language syntax highlighting, never implemented,
+was to calculate syntax highlighting on the server as a sort of "style
+overlay" and feed updates to the client along with updates to the
+document text.
+
+== Changeset format
+
+See easysync-notes.txt for some notes on the changeset format, which
+was redesigned with the advent of rich text.
diff --git a/trunk/infrastructure/ace/bin/backup.sh b/trunk/infrastructure/ace/bin/backup.sh
deleted file mode 100755
index 82b75cb..0000000
--- a/trunk/infrastructure/ace/bin/backup.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/bash
-
-# Copyright 2009 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS-IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-cp -r .. ~/Dropbox/backups/ace2-`date '+%s'` #&& dropbox-backup.sh
diff --git a/trunk/infrastructure/ace/bin/make b/trunk/infrastructure/ace/bin/make
index 2237df0..dad11ff 100755
--- a/trunk/infrastructure/ace/bin/make
+++ b/trunk/infrastructure/ace/bin/make
@@ -7,6 +7,7 @@ import java.io._;
def superpack(input: String): String = {
// this function is self-contained; takes a string, returns an expression
// that evaluates to that string
+ // XXX (This compresses well but decompression is too slow)
// constraints on special chars:
// - this string must be able to go in a character class
diff --git a/trunk/infrastructure/ace/bin/publish.sh b/trunk/infrastructure/ace/bin/publish.sh
deleted file mode 100755
index 2d442d0..0000000
--- a/trunk/infrastructure/ace/bin/publish.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/bash
-
-# Copyright 2009 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS-IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-rm -rf ~/Dropbox/Public/ace2
-mkdir ~/Dropbox/Public/ace2
-cp -r ace2.js ace2_common.js ace2_outer.js dev.html editor.css index.html firebug jquery-1.2.1.js magicdom.js skiplist.js notes.txt ~/Dropbox/Public/ace2/
diff --git a/trunk/infrastructure/ace/notes.txt b/trunk/infrastructure/ace/notes.txt
index e59cf0d..d9e1fda 100644
--- a/trunk/infrastructure/ace/notes.txt
+++ b/trunk/infrastructure/ace/notes.txt
@@ -1,3 +1,4 @@
+XXX This is a scratch file I used for notes; information may be out of date or random -- dgreenspan
- rename ace2.js to ace.js
diff --git a/trunk/infrastructure/ace/www/colorutils.js b/trunk/infrastructure/ace/www/colorutils.js
index afee1d6..bb61de3 100644
--- a/trunk/infrastructure/ace/www/colorutils.js
+++ b/trunk/infrastructure/ace/www/colorutils.js
@@ -1,12 +1,14 @@
+// THIS FILE IS ALSO SERVED AS CLIENT-SIDE JS
+
/**
* Copyright 2009 Google Inc.
- *
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,8 +16,6 @@
* limitations under the License.
*/
-// THIS FILE IS ALSO SERVED AS CLIENT-SIDE JS
-
var colorutils = {};
// "#ffffff" or "#fff" or "ffffff" or "fff" to [1.0, 1.0, 1.0]
diff --git a/trunk/infrastructure/ace/www/contentcollector.js b/trunk/infrastructure/ace/www/contentcollector.js
index 8e094b2..c5d8ddb 100644
--- a/trunk/infrastructure/ace/www/contentcollector.js
+++ b/trunk/infrastructure/ace/www/contentcollector.js
@@ -1,12 +1,15 @@
+// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.contentcollector
+// %APPJET%: import("etherpad.collab.ace.easysync2.Changeset")
+
/**
* Copyright 2009 Google Inc.
- *
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,9 +17,6 @@
* limitations under the License.
*/
-// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.contentcollector
-// %APPJET%: import("etherpad.collab.ace.easysync2.Changeset")
-
var _MAX_LIST_LEVEL = 8;
function sanitizeUnicode(s) {
diff --git a/trunk/infrastructure/ace/www/cssmanager.js b/trunk/infrastructure/ace/www/cssmanager.js
index bdd6aef..a5c549b 100644
--- a/trunk/infrastructure/ace/www/cssmanager.js
+++ b/trunk/infrastructure/ace/www/cssmanager.js
@@ -1,12 +1,14 @@
+
+
/**
* Copyright 2009 Google Inc.
- *
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,8 +16,6 @@
* limitations under the License.
*/
-
-
function makeCSSManager(emptyStylesheetTitle) {
function getSheetByTitle(title) {
@@ -37,9 +37,9 @@ function makeCSSManager(emptyStylesheetTitle) {
return t;
}
}
- return null;
+ return null;
}*/
-
+
var browserSheet = getSheetByTitle(emptyStylesheetTitle);
//var browserTag = getSheetTagByTitle(emptyStylesheetTitle);
function browserRules() { return (browserSheet.cssRules || browserSheet.rules); }
@@ -59,7 +59,7 @@ function makeCSSManager(emptyStylesheetTitle) {
return i;
}
}
- return -1;
+ return -1;
}
function selectorStyle(selector) {
@@ -80,7 +80,7 @@ function makeCSSManager(emptyStylesheetTitle) {
selectorList.splice(i, 1);
}
}
-
+
return {selectorStyle:selectorStyle, removeSelectorStyle:removeSelectorStyle,
info: function() {
return selectorList.length+":"+browserRules().length;
diff --git a/trunk/infrastructure/ace/www/domline.js b/trunk/infrastructure/ace/www/domline.js
index d66cecd..70f86cc 100644
--- a/trunk/infrastructure/ace/www/domline.js
+++ b/trunk/infrastructure/ace/www/domline.js
@@ -1,12 +1,14 @@
+// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.domline
+
/**
* Copyright 2009 Google Inc.
- *
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,8 +16,6 @@
* limitations under the License.
*/
-// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.domline
-
var domline = {};
domline.noop = function() {};
domline.identity = function(x) { return x; };
diff --git a/trunk/infrastructure/ace/www/easy_sync.js b/trunk/infrastructure/ace/www/easy_sync.js
index d4d309b..86a4327 100644
--- a/trunk/infrastructure/ace/www/easy_sync.js
+++ b/trunk/infrastructure/ace/www/easy_sync.js
@@ -1,12 +1,14 @@
+// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.easysync1
+
/**
* Copyright 2009 Google Inc.
- *
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,8 +16,6 @@
* limitations under the License.
*/
-// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.easysync1
-
function Changeset(arg) {
var array;
@@ -38,7 +38,7 @@ function Changeset(arg) {
else array = arg;
array.isChangeset = true;
-
+
// OOP style: attach generic methods to array object, hold no state in environment
//function error(msg) { top.console.error(msg); top.console.trace(); }
@@ -51,7 +51,7 @@ function Changeset(arg) {
return this.length == 6 && this[1] == this[2] && this[3] == 0 &&
this[4] == this[1] && this[5] == "";
}
-
+
array.eachStrip = function(func, thisObj) {
// inside "func", the method receiver will be "this" by default,
// or you can pass an object.
@@ -66,7 +66,7 @@ function Changeset(arg) {
array.numStrips = function() { return (this.length-3)/3; };
array.oldLen = function() { return this[1]; };
array.newLen = function() { return this[2]; };
-
+
array.checkRep = function() {
assert(this[0] == Changeset.MAGIC, "bad magic");
assert(this[1] >= 0, "bad old text length");
@@ -97,7 +97,7 @@ function Changeset(arg) {
});
assert(newLen == actualNewLen, "calculated new text length doesn't match");
}
-
+
array.applyToText = function(text) {
assert(text.length == this.oldLen(), "mismatched apply: "+text.length+" / "+this.oldLen());
var buf = [];
@@ -139,7 +139,7 @@ function Changeset(arg) {
C.authors = [_getNumInserted(C), author || ''];
return C;
}
-
+
array.builder = function() {
// normal pattern is Changeset(oldLength).builder().appendOldText(...). ...
// builder methods mutate this!
@@ -166,7 +166,7 @@ function Changeset(arg) {
C.authors.push(str.length, a);
}
}
-
+
return self;
},
appendOldText: function(startIndex, numTaken) {
@@ -193,7 +193,7 @@ function Changeset(arg) {
array.authorSlicer = function(outputBuilder) {
return _makeAuthorSlicer(this, outputBuilder);
}
-
+
function _makeAuthorSlicer(changesetOrAuthorsIn, builderOut) {
// "builderOut" only needs to support appendNewText
var authors; // considered immutable
@@ -203,13 +203,13 @@ function Changeset(arg) {
else {
authors = changesetOrAuthorsIn;
}
-
+
// OOP style: state in environment
var authorPtr = 0;
var charIndex = 0;
var charWithinAuthor = 0; // 0 <= charWithinAuthor <= authors[authorPtr]; max value iff atEnd
var atEnd = false;
- function curAuthor() { return authors[authorPtr+1]; }
+ function curAuthor() { return authors[authorPtr+1]; }
function curAuthorWidth() { return authors[authorPtr]; }
function assertNotAtEnd() { assert(! atEnd, "_authorSlicer: can't move past end"); }
function forwardInAuthor(numChars) {
@@ -225,7 +225,7 @@ function Changeset(arg) {
atEnd = true;
}
}
-
+
var self;
return self = {
skipChars: function(n) {
@@ -278,11 +278,11 @@ function Changeset(arg) {
}
};
}
-
+
function _makeSlicer(C, output) {
// C: Changeset, output: builder from _makeBuilder
// C is considered immutable, won't change or be changed
-
+
// OOP style: state in environment
var charIndex = 0; // 0 <= charIndex <= C.newLen(); maximum value iff atEnd
var stripIndex = 0; // 0 <= stripIndex <= C.numStrips(); maximum value iff atEnd
@@ -293,7 +293,7 @@ function Changeset(arg) {
if (C.authors) {
authorSlicer = _makeAuthorSlicer(C.authors, output);
}
-
+
var ptr = 3;
function curStartIndex() { return C[ptr]; }
function curNumTaken() { return C[ptr+1]; }
@@ -327,7 +327,7 @@ function Changeset(arg) {
if (e < s) return 0;
return e-s;
}
-
+
var self;
return self = {
skipChars: function (n) {
@@ -344,7 +344,7 @@ function Changeset(arg) {
if (authorSlicer)
authorSlicer.skipChars(curNumNewCharsInRange(charWithinStrip,
charWithinStrip + leftInStrip));
-
+
leftToSkip -= leftInStrip;
nextStrip();
}
@@ -352,7 +352,7 @@ function Changeset(arg) {
if (authorSlicer)
authorSlicer.skipChars(curNumNewCharsInRange(charWithinStrip,
charWithinStrip + leftToSkip));
-
+
forwardInStrip(leftToSkip);
leftToSkip = 0;
}
@@ -379,9 +379,9 @@ function Changeset(arg) {
charWithinStrip < curStripWidth()) {
// at least one char to take from current strip's newText
var leftInNewText = (curStripWidth() - charWithinStrip);
- assert(leftInNewText > 0, "_slicer: should have leftInNewText > 0");
+ assert(leftInNewText > 0, "_slicer: should have leftInNewText > 0");
var toTake = min(leftInNewText, leftToTake);
- assert(toTake > 0, "_slicer: should have toTake > 0");
+ assert(toTake > 0, "_slicer: should have toTake > 0");
var newText = curNewText().substr(charWithinStrip - curNumTaken(), toTake);
if (authorSlicer) {
authorSlicer.takeChars(newText.length, newText);
@@ -407,7 +407,7 @@ function Changeset(arg) {
array.slicer = function(outputBuilder) {
return _makeSlicer(this, outputBuilder);
}
-
+
array.compose = function(next) {
assert(next.oldLen() == this.newLen(), "mismatched composition");
@@ -418,7 +418,7 @@ function Changeset(arg) {
if (next.authors) {
authorSlicer = _makeAuthorSlicer(next.authors, builder);
}
-
+
next.eachStrip(function(s, t, n) {
slicer.skipTo(s);
slicer.takeChars(t);
@@ -436,7 +436,7 @@ function Changeset(arg) {
array.traverser = function() {
return _makeTraverser(this);
}
-
+
function _makeTraverser(C) {
var s = C[3], t = C[4], n = C[5];
var nextIndex = 6;
@@ -446,7 +446,7 @@ function Changeset(arg) {
if (C.authors) {
authorSlicer = _makeAuthorSlicer(C.authors, null);
}
-
+
function advanceIfPossible() {
if (t == 0 && n == "" && nextIndex < C.length) {
s = C[nextIndex];
@@ -561,7 +561,7 @@ function Changeset(arg) {
}
return builder.toChangeset();
}
-
+
array.encodeToString = function(asBinary) {
var stringDataArray = [];
var numsArray = [];
@@ -585,7 +585,7 @@ function Changeset(arg) {
return "\\u"+("0000"+c.charCodeAt(0).toString(16)).slice(-4);
});
}
-
+
array.applyToAttributedText = Changeset.applyToAttributedText;
function splicesFromChanges(c) {
@@ -616,11 +616,11 @@ function Changeset(arg) {
}
return splices;
}
-
+
array.toSplices = function() {
return splicesFromChanges(this);
}
-
+
array.characterRangeFollowThis = function(selStartChar, selEndChar, insertionsAfter) {
var changeset = this;
// represent the selection as a changeset that replaces the selection with some finite string.
@@ -650,7 +650,7 @@ function Changeset(arg) {
}
return [selStartChar, selEndChar];
}
-
+
return array;
}
@@ -660,7 +660,7 @@ Changeset.makeSplice = function(oldLength, spliceStart, numRemoved, stringInsert
spliceStart = (spliceStart || 0);
numRemoved = (numRemoved || 0);
stringInserted = String(stringInserted || "");
-
+
var builder = Changeset(oldLength).builder();
builder.appendOldText(0, spliceStart);
builder.appendNewText(stringInserted);
@@ -688,7 +688,7 @@ Changeset.decodeFromString = function(str) {
return String.fromCharCode(Number("0x"+seq.substring(2)));
});
}
-
+
var numData, stringData;
var binary = false;
var typ = str.charAt(0);
@@ -765,7 +765,7 @@ Changeset.numberArrayFromString = function(str, startIndex) {
}
else {
// legacy format
- n = (((n & 0x1fff) << 16) | str.charCodeAt(strIndex++));
+ n = (((n & 0x1fff) << 16) | str.charCodeAt(strIndex++));
}
}
return n;
@@ -805,7 +805,7 @@ Changeset.numberArrayFromString = function(str, startIndex) {
}
return 0;
}
-
+
// emptyObj may be a StorableObject
Changeset.initAttributedText = function(emptyObj, initialString, initialAuthor) {
var obj = emptyObj;
@@ -894,7 +894,7 @@ Changeset.numberArrayFromString = function(str, startIndex) {
// call func(author, authorNum)
for(var a in atObj.authorMap) {
if (func(atObj.authorMap[a], Number(a))) break;
- }
+ }
};
Changeset.getAttributedTextAuthorByNum = function(atObj, n) {
return atObj.authorMap[n];
diff --git a/trunk/infrastructure/ace/www/easysync2.js b/trunk/infrastructure/ace/www/easysync2.js
index 7cd1917..efc5b99 100644
--- a/trunk/infrastructure/ace/www/easysync2.js
+++ b/trunk/infrastructure/ace/www/easysync2.js
@@ -1,12 +1,15 @@
+// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.easysync2
+// %APPJET%: jimport("com.etherpad.Easysync2Support");
+
/**
* Copyright 2009 Google Inc.
- *
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,9 +17,6 @@
* limitations under the License.
*/
-// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.easysync2
-// %APPJET%: jimport("com.etherpad.Easysync2Support");
-
//var _opt = (this.Easysync2Support || null);
var _opt = null; // disable optimization for now
diff --git a/trunk/infrastructure/ace/www/easysync2_tests.js b/trunk/infrastructure/ace/www/easysync2_tests.js
index 071a207..2fcf202 100644
--- a/trunk/infrastructure/ace/www/easysync2_tests.js
+++ b/trunk/infrastructure/ace/www/easysync2_tests.js
@@ -1,12 +1,15 @@
+// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.easysync2_tests
+// %APPJET%: import("etherpad.collab.ace.easysync2.*")
+
/**
* Copyright 2009 Google Inc.
- *
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,9 +17,6 @@
* limitations under the License.
*/
-// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.easysync2_tests
-// %APPJET%: import("etherpad.collab.ace.easysync2.*")
-
function runTests() {
function print(str) {
diff --git a/trunk/infrastructure/ace/www/linestylefilter.js b/trunk/infrastructure/ace/www/linestylefilter.js
index 69a0aac..0ac578b 100644
--- a/trunk/infrastructure/ace/www/linestylefilter.js
+++ b/trunk/infrastructure/ace/www/linestylefilter.js
@@ -1,12 +1,15 @@
+// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.linestylefilter
+// %APPJET%: import("etherpad.collab.ace.easysync2.Changeset");
+
/**
* Copyright 2009 Google Inc.
- *
+ *
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
- *
+ *
* http://www.apache.org/licenses/LICENSE-2.0
- *
+ *
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS-IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -14,9 +17,6 @@
* limitations under the License.
*/
-// THIS FILE IS ALSO AN APPJET MODULE: etherpad.collab.ace.linestylefilter
-// %APPJET%: import("etherpad.collab.ace.easysync2.Changeset");
-
// requires: easysync2.Changeset
var linestylefilter = {};