first-commit

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Peter 'Pita' Martischka 2011-03-26 13:10:41 +00:00
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/**
* Copyright 2009 Google Inc., 2011 Peter 'Pita' Martischka
*
* 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.
*/
exports.createAttributePool = function () {
var p = {};
p.numToAttrib = {}; // e.g. {0: ['foo','bar']}
p.attribToNum = {}; // e.g. {'foo,bar': 0}
p.nextNum = 0;
p.putAttrib = function (attrib, dontAddIfAbsent) {
var str = String(attrib);
if (str in p.attribToNum) {
return p.attribToNum[str];
}
if (dontAddIfAbsent) {
return -1;
}
var num = p.nextNum++;
p.attribToNum[str] = num;
p.numToAttrib[num] = [String(attrib[0] || ''), String(attrib[1] || '')];
return num;
};
p.getAttrib = function (num) {
var pair = p.numToAttrib[num];
if (!pair) {
return pair;
}
return [pair[0], pair[1]]; // return a mutable copy
};
p.getAttribKey = function (num) {
var pair = p.numToAttrib[num];
if (!pair) return '';
return pair[0];
};
p.getAttribValue = function (num) {
var pair = p.numToAttrib[num];
if (!pair) return '';
return pair[1];
};
p.eachAttrib = function (func) {
for (var n in p.numToAttrib) {
var pair = p.numToAttrib[n];
func(pair[0], pair[1]);
}
};
p.toJsonable = function () {
return {
numToAttrib: p.numToAttrib,
nextNum: p.nextNum
};
};
p.fromJsonable = function (obj) {
p.numToAttrib = obj.numToAttrib;
p.nextNum = obj.nextNum;
p.attribToNum = {};
for (var n in p.numToAttrib) {
p.attribToNum[String(p.numToAttrib[n])] = Number(n);
}
return p;
};
return p;
}

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/**
* 2011 Peter 'Pita' Martischka
*
* 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.
*/
/**
* The AuthorManager controlls all information about the Pad authors
*/
/**
* Saves all Authors as a assoative Array. The Key is the author id.
* Authors can have the following attributes:
* -name The Name of the Author as shown on the Pad
* -colorId The Id of Usercolor. A number between 0 and 31
* -timestamp The timestamp on which the user was last seen
*/
var globalAuthors = {};
/**
* A easy key value pair. The Key is the token, the value is the authorid
*/
var token2author = {};
/**
* Returns the Author Id for a token. If the token is unkown,
* it creates a author for the token
* @param token The token
*/
exports.getAuthor4Token = function (token)
{
var author;
if(token2author[token] == null)
{
author = "g." + _randomString(16);
while(globalAuthors[author] != null)
{
author = "g." + _randomString(16);
}
token2author[token]=author;
globalAuthors[author] = {};
globalAuthors[author].colorId = Math.floor(Math.random()*32);
globalAuthors[author].name = null;
}
else
{
author = token2author[token];
}
globalAuthors[author].timestamp = new Date().getTime();
return author;
}
/**
* Returns the color Id of the author
*/
exports.getAuthorColorId = function (author)
{
throwExceptionIfAuthorNotExist(author);
return globalAuthors[author].colorId;
}
/**
* Sets the color Id of the author
*/
exports.setAuthorColorId = function (author, colorId)
{
throwExceptionIfAuthorNotExist(author);
globalAuthors[author].colorId = colorId;
}
/**
* Returns the name of the author
*/
exports.getAuthorName = function (author)
{
throwExceptionIfAuthorNotExist(author);
return globalAuthors[author].name;
}
/**
* Sets the name of the author
*/
exports.setAuthorName = function (author, name)
{
throwExceptionIfAuthorNotExist(author);
globalAuthors[author].name = name;
}
/**
* A internal function that checks if the Author exist and throws a exception if not
*/
function throwExceptionIfAuthorNotExist(author)
{
if(globalAuthors[author] == null)
{
throw "Author '" + author + "' is unkown!";
}
}
/**
* Generates a random String with the given length. Is needed to generate the Author Ids
*/
function _randomString(len) {
// use only numbers and lowercase letters
var pieces = [];
for(var i=0;i<len;i++) {
pieces.push(Math.floor(Math.random()*36).toString(36).slice(-1));
}
return pieces.join('');
}

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/**
* 2011 Peter 'Pita' Martischka
*
* 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.
*/
var padManager = require("./PadManager");
var Changeset = require("./Changeset");
var AttributePoolFactory = require("./AttributePoolFactory");
var authorManager = require("./AuthorManager");
//var token2author = {};
//var author2token = {};
var session2pad = {};
var pad2sessions = {};
var sessioninfos = {};
var socketio;
exports.setSocketIO = function(socket_io)
{
socketio=socket_io;
}
exports.handleConnect = function(client)
{
throwExceptionIfClientOrIOisInvalid(client);
session2pad[client.sessionId]=null;
sessioninfos[client.sessionId]={};
}
exports.handleDisconnect = function(client)
{
throwExceptionIfClientOrIOisInvalid(client);
var sessionPad=session2pad[client.sessionId];
for(i in pad2sessions[sessionPad])
{
if(pad2sessions[sessionPad][i] == client.sessionId)
{
delete pad2sessions[sessionPad][i];
break;
}
}
delete session2pad[client.sessionId];
delete sessioninfos[client.sessionId];
}
exports.handleMessage = function(client, message)
{
throwExceptionIfClientOrIOisInvalid(client);
if(message == null)
{
throw "Message is null!";
}
if(typeof message == "string")
{
message = JSON.parse(message);
}
if(!message.type)
{
throw "Message have no type attribute!";
}
if(message.type == "CLIENT_READY")
{
handleClientReady(client, message);
}
else if(message.type == "COLLABROOM" &&
message.data.type == "USER_CHANGES")
{
console.error(JSON.stringify(message));
handleUserChanges(client, message);
}
else if(message.type == "COLLABROOM" &&
message.data.type == "USERINFO_UPDATE")
{
console.error(JSON.stringify(message));
handleUserInfoUpdate(client, message);
}
else
{
console.error(message);
throw "unkown Message Type: '" + message.type + "'";
}
}
function handleUserInfoUpdate(client, message)
{
if(message.data.userInfo.name == null)
{
throw "USERINFO_UPDATE Message have no name!";
}
if(message.data.userInfo.colorId == null)
{
throw "USERINFO_UPDATE Message have no colorId!";
}
var author = sessioninfos[client.sessionId].author;
authorManager.setAuthorColorId(author, message.data.userInfo.colorId);
authorManager.setAuthorName(author, message.data.userInfo.name);
}
function handleUserChanges(client, message)
{
if(message.data.baseRev == null)
{
throw "USER_CHANGES Message have no baseRev!";
}
if(message.data.apool == null)
{
throw "USER_CHANGES Message have no apool!";
}
if(message.data.changeset == null)
{
throw "USER_CHANGES Message have no changeset!";
}
var baseRev = message.data.baseRev;
var wireApool = (AttributePoolFactory.createAttributePool()).fromJsonable(message.data.apool);
//console.error({"wireApool": wireApool});
var changeset = message.data.changeset;
var pad = padManager.getPad(session2pad[client.sessionId], false);
//ex. _checkChangesetAndPool
Changeset.checkRep(changeset);
Changeset.eachAttribNumber(changeset, function(n) {
if (! wireApool.getAttrib(n)) {
throw "Attribute pool is missing attribute "+n+" for changeset "+changeset;
}
});
//ex. adoptChangesetAttribs
console.error({"changeset": changeset});
//console.error({"before: pad.pool()": pad.pool()});
Changeset.moveOpsToNewPool(changeset, wireApool, pad.pool());
//console.error({"after: pad.pool()": pad.pool()});
//ex. applyUserChanges
var apool = pad.pool();
var r = baseRev;
while (r < pad.getHeadRevisionNumber()) {
r++;
var c = pad.getRevisionChangeset(r);
changeset = Changeset.follow(c, changeset, false, apool);
}
var prevText = pad.text();
if (Changeset.oldLen(changeset) != prevText.length) {
throw "Can't apply USER_CHANGES "+changeset+" with oldLen "
+ Changeset.oldLen(changeset) + " to document of length " + prevText.length;
}
var thisAuthor = sessioninfos[client.sessionId].author;
pad.appendRevision(changeset, thisAuthor);
var correctionChangeset = _correctMarkersInPad(pad.atext(), pad.pool());
if (correctionChangeset) {
pad.appendRevision(correctionChangeset);
}
if (pad.text().lastIndexOf("\n\n") != pad.text().length-2) {
var nlChangeset = Changeset.makeSplice(
pad.text(), pad.text().length-1, 0, "\n");
pad.appendRevision(nlChangeset);
}
console.error(JSON.stringify(pad.pool()));
//ex. updatePadClients
//console.error({"sessioninfos[client.sessionId].author":sessioninfos[client.sessionId].author});
for(i in pad2sessions[pad.id])
{
var session = pad2sessions[pad.id][i];
//console.error({"session":session});
var lastRev = sessioninfos[session].rev;
while (lastRev < pad.getHeadRevisionNumber())
{
var r = ++lastRev;
var author = pad.getRevisionAuthor(r);
//console.error({"author":author});
if(author == sessioninfos[session].author)
{
socketio.clients[session].send({"type":"COLLABROOM","data":{type:"ACCEPT_COMMIT", newRev:r}});
}
else
{
var forWire = Changeset.prepareForWire(pad.getRevisionChangeset(r), pad.pool());
var wireMsg = {"type":"COLLABROOM","data":{type:"NEW_CHANGES", newRev:r,
changeset: forWire.translated,
apool: forWire.pool,
author: author}};
socketio.clients[session].send(wireMsg);
}
}
sessioninfos[session].rev = pad.getHeadRevisionNumber();
}
//pad.getAllAuthors();
}
function _correctMarkersInPad(atext, apool) {
var text = atext.text;
// collect char positions of line markers (e.g. bullets) in new atext
// that aren't at the start of a line
var badMarkers = [];
var iter = Changeset.opIterator(atext.attribs);
var offset = 0;
while (iter.hasNext()) {
var op = iter.next();
var listValue = Changeset.opAttributeValue(op, 'list', apool);
if (listValue) {
for(var i=0;i<op.chars;i++) {
if (offset > 0 && text.charAt(offset-1) != '\n') {
badMarkers.push(offset);
}
offset++;
}
}
else {
offset += op.chars;
}
}
if (badMarkers.length == 0) {
return null;
}
// create changeset that removes these bad markers
offset = 0;
var builder = Changeset.builder(text.length);
badMarkers.forEach(function(pos) {
builder.keepText(text.substring(offset, pos));
builder.remove(1);
offset = pos+1;
});
return builder.toString();
}
function handleClientReady(client, message)
{
if(!message.token)
{
throw "CLIENT_READY Message have no token!";
}
if(!message.padId)
{
throw "CLIENT_READY Message have no padId!";
}
if(!message.protocolVersion)
{
throw "CLIENT_READY Message have no protocolVersion!";
}
if(message.protocolVersion != 1)
{
throw "CLIENT_READY Message have a unkown protocolVersion '" + protocolVersion + "'!";
}
var author = authorManager.getAuthor4Token(message.token);
/*if(token2author[message.token])
{
author = token2author[message.token];
}
else
{
author = "g." + _randomString(16);
token2author[message.token] = author;
author2token[author] = message.token;
}*/
var sessionId=String(client.sessionId);
session2pad[sessionId] = message.padId;
if(!pad2sessions[message.padId])
{
pad2sessions[message.padId] = [];
}
padManager.ensurePadExists(message.padId);
pad2sessions[message.padId].push(sessionId);
/*console.dir({"session2pad": session2pad});
console.dir({"pad2sessions": pad2sessions});
console.dir({"token2author": token2author});
console.dir({"author2token": author2token});*/
var pad = padManager.getPad(message.padId, false);
atext = pad.atext();
var attribsForWire = Changeset.prepareForWire(atext.attribs, pad.pool());
var apool = attribsForWire.pool.toJsonable();
atext.attribs = attribsForWire.translated;
var clientVars = {
//"userAgent": "Anonymous Agent",
"accountPrivs": {
"maxRevisions": 100
},
"initialRevisionList": [],
"initialOptions": {
"guestPolicy": "deny"
},
"collab_client_vars": {
"initialAttributedText": atext,
"clientIp": client.request.connection.remoteAddress,
//"clientAgent": "Anonymous Agent",
"padId": message.padId,
"historicalAuthorData": {},
"apool": apool,
"rev": pad.getHeadRevisionNumber(),
"globalPadId": message.padId
},
"colorPalette": ["#ffc7c7", "#fff1c7", "#e3ffc7", "#c7ffd5", "#c7ffff", "#c7d5ff", "#e3c7ff", "#ffc7f1", "#ff8f8f", "#ffe38f", "#c7ff8f", "#8fffab", "#8fffff", "#8fabff", "#c78fff", "#ff8fe3", "#d97979", "#d9c179", "#a9d979", "#79d991", "#79d9d9", "#7991d9", "#a979d9", "#d979c1", "#d9a9a9", "#d9cda9", "#c1d9a9", "#a9d9b5", "#a9d9d9", "#a9b5d9", "#c1a9d9", "#d9a9cd"],
"clientIp": client.request.connection.remoteAddress,
"userIsGuest": true,
"userColor": authorManager.getAuthorColorId(author),
"padId": message.padId,
"initialTitle": "Pad: " + message.padId,
"opts": {},
"chatHistory": {
"start": 0,
"historicalAuthorData": {},
"end": 0,
"lines": []
},
"numConnectedUsers": pad2sessions[message.padId].length,
"isProPad": false,
"serverTimestamp": new Date().getTime(),
"globalPadId": message.padId,
"userId": author,
"cookiePrefsToSet": {
"fullWidth": false,
"hideSidebar": false
},
"hooks": {}
}
if(authorManager.getAuthorName(author) != null)
{
clientVars.userName = authorManager.getAuthorName(author);
}
var allAuthors = pad.getAllAuthors();
for(i in allAuthors)
{
clientVars.collab_client_vars.historicalAuthorData[allAuthors[i]] = {};
if(authorManager.getAuthorName(author) != null)
clientVars.collab_client_vars.historicalAuthorData[allAuthors[i]].name = authorManager.getAuthorName(author);
clientVars.collab_client_vars.historicalAuthorData[allAuthors[i]].colorId = authorManager.getAuthorColorId(author);
}
client.send(clientVars);
sessioninfos[client.sessionId].rev = pad.getHeadRevisionNumber();
sessioninfos[client.sessionId].author = author;
var messageToTheOtherUsers = {
"type": "COLLABROOM",
"data": {
type: "USER_NEWINFO",
userInfo: {
"ip": "127.0.0.1",
"colorId": authorManager.getAuthorColorId(author),
"userAgent": "Anonymous",
"userId": author
}
}
};
if(authorManager.getAuthorName(author) != null)
{
messageToTheOtherUsers.data.userInfo.name = authorManager.getAuthorName(author);
}
for(i in pad2sessions[message.padId])
{
if(pad2sessions[message.padId][i] != client.sessionId)
{
socketio.clients[pad2sessions[message.padId][i]].send(messageToTheOtherUsers);
var messageToNotifyTheClientAboutTheOthers = {
"type": "COLLABROOM",
"data": {
type: "USER_NEWINFO",
userInfo: {
"ip": "127.0.0.1",
"colorId": authorManager.getAuthorColorId(sessioninfos[pad2sessions[message.padId][i]].author),
"userAgent": "Anonymous",
"userId": sessioninfos[pad2sessions[message.padId][i]].author
}
}
};
client.send(messageToNotifyTheClientAboutTheOthers);
}
}
}
/*function _randomString(len) {
// use only numbers and lowercase letters
var pieces = [];
for(var i=0;i<len;i++) {
pieces.push(Math.floor(Math.random()*36).toString(36).slice(-1));
}
return pieces.join('');
}*/
function throwExceptionIfClientOrIOisInvalid(client)
{
if(client == null)
{
throw "Client is null!";
}
if(socketio == null)
{
throw "SocketIO is not set or null! Please use setSocketIO(io) to set it";
}
}

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/**
* 2011 Peter 'Pita' Martischka
*
* 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.
*/
/*
The Pad Module trys to simulate the pad object from EtherPad. You can find the original code in /etherpad/src/etherpad/pad/model.js
see https://github.com/ether/pad/blob/master/etherpad/src/etherpad/pad/model.js
*/
var Changeset = require("./Changeset");
var AttributePoolFactory = require("./AttributePoolFactory");
/**
* The initial Text of a Pad
*/
exports.startText = "Hello World\nGoodbye Etherpad";
/**
* A Array with all known Pads
*/
globalPads = [];
/**
* Return a Function Wrapper to work with the Pad
* @param id A String with the id of the pad
* @param createIfNotExist A Boolean which says the function if it should create the Pad if it not exist
*/
exports.getPad = function(id, createIfNotExist)
{
if(!globalPads[id] && createIfNotExist == true)
{
createPad(id);
}
if(!globalPads[id])
return null;
globalPads[id].timestamp = new Date().getTime();
var functionWrapper = {};
functionWrapper.id = id;
functionWrapper.appendRevision = function (theChangeset, author) {return appendRevision(id, theChangeset, author)};
functionWrapper.text = function () {return text(id)};
functionWrapper.atext = function () {return atext(id)};
functionWrapper.pool = function () {return pool(id)};
functionWrapper.getHeadRevisionNumber = function () {return getHeadRevisionNumber(id)};
functionWrapper.getRevisionChangeset = function (revNum) {return getRevisionChangeset(id, revNum)};
functionWrapper.getRevisionAuthor = function (revNum) {return getRevisionAuthor(id, revNum)};
functionWrapper.getAllAuthors = function () {return getAllAuthors(id)};
return functionWrapper;
}
/**
* Ensures that the Pad exists
* @param id The Pad id
*/
exports.ensurePadExists = function(id)
{
if(!globalPads[id])
{
createPad(id);
}
}
/**
* Creates an empty pad
* @param id The Pad id
*/
function createPad(id)
{
var pad = {};
globalPads[id] = pad;
pad.id = id;
pad.rev = [];
pad.head = -1;
pad.atext = Changeset.makeAText("\n");
pad.apool = AttributePoolFactory.createAttributePool();
pad.authors = [];
var firstChangeset = Changeset.makeSplice("\n", 0, 0,
exports.cleanText(exports.startText));
appendRevision(id, firstChangeset, '');
}
/**
* Append a changeset to a pad
* @param id The Pad id
* @param theChangeset the changeset which should apply to the text
* @param The author of the revision, can be null
*/
function appendRevision(id, theChangeset, author)
{
throwExceptionIfPadDontExist(id);
if(!author)
author = '';
var atext = globalPads[id].atext;
var apool = globalPads[id].apool;
var newAText = Changeset.applyToAText(theChangeset, atext, apool);
Changeset.copyAText(newAText, atext);
var newRev = ++globalPads[id].head;
globalPads[id].rev[newRev] = {};
globalPads[id].rev[newRev].changeset = theChangeset;
globalPads[id].rev[newRev].meta = {};
globalPads[id].rev[newRev].meta.author = author;
globalPads[id].rev[newRev].meta.timestamp = new Date().getTime();
//ex. getNumForAuthor
apool.putAttrib(['author',author||'']);
if(newRev%100==0)
{
globalPads[id].rev[newRev].meta.atext=atext;
}
}
/**
* Returns all Authors of a Pad
* @param id The Pad id
*/
function getAllAuthors(id)
{
var authors = [];
for(key in globalPads[id].apool.numToAttrib)
{
if(globalPads[id].apool.numToAttrib[key][0] == "author" && globalPads[id].apool.numToAttrib[key][1] != "")
{
authors.push(globalPads[id].apool.numToAttrib[key][1]);
}
}
return authors;
}
/**
* Returns the plain text of a pad
* @param id The Pad id
*/
function text(id)
{
throwExceptionIfPadDontExist(id);
return globalPads[id].atext.text;
}
/**
* Returns the Attributed Text of a pad
* @param id The Pad id
*/
function atext(id)
{
throwExceptionIfPadDontExist(id);
return globalPads[id].atext;
}
/**
* Returns the Attribute Pool whichs the Pad is using
* @param id The Pad id
*/
function pool(id)
{
throwExceptionIfPadDontExist(id);
return globalPads[id].apool;
}
/**
* Returns the latest Revision Number of the Pad
* @param id The Pad id
*/
function getHeadRevisionNumber(id)
{
throwExceptionIfPadDontExist(id);
return globalPads[id].head;
}
/**
* Returns the changeset of a specific revision
* @param id The Pad id
* @param revNum The Revision Number
*/
function getRevisionChangeset(id, revNum)
{
throwExceptionIfPadDontExist(id);
throwExceptionIfRevDontExist(id, revNum);
return globalPads[id].rev[revNum].changeset;
}
/**
* Returns the author of a specific revision
* @param id The Pad id
* @param revNum The Revision Number
*/
function getRevisionAuthor(id, revNum)
{
throwExceptionIfPadDontExist(id);
throwExceptionIfRevDontExist(id, revNum);
return globalPads[id].rev[revNum].meta.author;
}
/**
* Check if the ID is a valid Pad ID and trows an Exeption if not
* @param id The Pad id
*/
function throwExceptionIfPadDontExist(id)
{
if(id == null)
{
throw "Padname is null!";
}
if(!globalPads[id])
{
throw "Pad don't exist!'";
}
}
/**
* Check if the Revision of a Pad is valid and throws an Exeption if not
* @param id The Pad id
*/
function throwExceptionIfRevDontExist(id, revNum)
{
if(revNum == null)
throw "revNum is null";
if((typeof revNum) != "number")
throw revNum + " is no Number";
if(revNum < 0 || revNum > globalPads[id].head)
throw "The Revision " + revNum + " don't exist'";
}
/**
* Copied from the Etherpad source code, don't know what its good for
* @param txt
*/
exports.cleanText = function (txt) {
return txt.replace(/\r\n/g,'\n').replace(/\r/g,'\n').replace(/\t/g, ' ').replace(/\xa0/g, ' ');
}

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/**
* Copyright 2009 Google Inc., 2011 Peter 'Pita' Martischka
*
* 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.
*/
var Changeset = require('./Changeset');
var AttributePoolFactory = require("./AttributePoolFactory");
function random() {
this.nextInt = function (maxValue) {
return Math.floor(Math.random() * maxValue);
}
this.nextDouble = function (maxValue) {
return Math.random();
}
}
function runTests() {
function print(str) {
console.log(str);
}
function assert(code, optMsg) {
if (!eval(code)) throw new Error("FALSE: " + (optMsg || code));
}
function literal(v) {
if ((typeof v) == "string") {
return '"' + v.replace(/[\\\"]/g, '\\$1').replace(/\n/g, '\\n') + '"';
} else
return JSON.stringify(v);
}
function assertEqualArrays(a, b) {
assert("JSON.stringify(" + literal(a) + ") == JSON.stringify(" + literal(b) + ")");
}
function assertEqualStrings(a, b) {
assert(literal(a) + " == " + literal(b));
}
function throughIterator(opsStr) {
var iter = Changeset.opIterator(opsStr);
var assem = Changeset.opAssembler();
while (iter.hasNext()) {
assem.append(iter.next());
}
return assem.toString();
}
function throughSmartAssembler(opsStr) {
var iter = Changeset.opIterator(opsStr);
var assem = Changeset.smartOpAssembler();
while (iter.hasNext()) {
assem.append(iter.next());
}
assem.endDocument();
return assem.toString();
}
(function () {
print("> throughIterator");
var x = '-c*3*4+6|3=az*asdf0*1*2*3+1=1-1+1*0+1=1-1+1|c=c-1';
assert("throughIterator(" + literal(x) + ") == " + literal(x));
})();
(function () {
print("> throughSmartAssembler");
var x = '-c*3*4+6|3=az*asdf0*1*2*3+1=1-1+1*0+1=1-1+1|c=c-1';
assert("throughSmartAssembler(" + literal(x) + ") == " + literal(x));
})();
function applyMutations(mu, arrayOfArrays) {
arrayOfArrays.forEach(function (a) {
var result = mu[a[0]].apply(mu, a.slice(1));
if (a[0] == 'remove' && a[3]) {
assertEqualStrings(a[3], result);
}
});
}
function mutationsToChangeset(oldLen, arrayOfArrays) {
var assem = Changeset.smartOpAssembler();
var op = Changeset.newOp();
var bank = Changeset.stringAssembler();
var oldPos = 0;
var newLen = 0;
arrayOfArrays.forEach(function (a) {
if (a[0] == 'skip') {
op.opcode = '=';
op.chars = a[1];
op.lines = (a[2] || 0);
assem.append(op);
oldPos += op.chars;
newLen += op.chars;
} else if (a[0] == 'remove') {
op.opcode = '-';
op.chars = a[1];
op.lines = (a[2] || 0);
assem.append(op);
oldPos += op.chars;
} else if (a[0] == 'insert') {
op.opcode = '+';
bank.append(a[1]);
op.chars = a[1].length;
op.lines = (a[2] || 0);
assem.append(op);
newLen += op.chars;
}
});
newLen += oldLen - oldPos;
assem.endDocument();
return Changeset.pack(oldLen, newLen, assem.toString(), bank.toString());
}
function runMutationTest(testId, origLines, muts, correct) {
print("> runMutationTest#" + testId);
var lines = origLines.slice();
var mu = Changeset.textLinesMutator(lines);
applyMutations(mu, muts);
mu.close();
assertEqualArrays(correct, lines);
var inText = origLines.join('');
var cs = mutationsToChangeset(inText.length, muts);
lines = origLines.slice();
Changeset.mutateTextLines(cs, lines);
assertEqualArrays(correct, lines);
var correctText = correct.join('');
//print(literal(cs));
var outText = Changeset.applyToText(cs, inText);
assertEqualStrings(correctText, outText);
}
runMutationTest(1, ["apple\n", "banana\n", "cabbage\n", "duffle\n", "eggplant\n"], [
['remove', 1, 0, "a"],
['insert', "tu"],
['remove', 1, 0, "p"],
['skip', 4, 1],
['skip', 7, 1],
['insert', "cream\npie\n", 2],
['skip', 2],
['insert', "bot"],
['insert', "\n", 1],
['insert', "bu"],
['skip', 3],
['remove', 3, 1, "ge\n"],
['remove', 6, 0, "duffle"]
], ["tuple\n", "banana\n", "cream\n", "pie\n", "cabot\n", "bubba\n", "eggplant\n"]);
runMutationTest(2, ["apple\n", "banana\n", "cabbage\n", "duffle\n", "eggplant\n"], [
['remove', 1, 0, "a"],
['remove', 1, 0, "p"],
['insert', "tu"],
['skip', 11, 2],
['insert', "cream\npie\n", 2],
['skip', 2],
['insert', "bot"],
['insert', "\n", 1],
['insert', "bu"],
['skip', 3],
['remove', 3, 1, "ge\n"],
['remove', 6, 0, "duffle"]
], ["tuple\n", "banana\n", "cream\n", "pie\n", "cabot\n", "bubba\n", "eggplant\n"]);
runMutationTest(3, ["apple\n", "banana\n", "cabbage\n", "duffle\n", "eggplant\n"], [
['remove', 6, 1, "apple\n"],
['skip', 15, 2],
['skip', 6],
['remove', 1, 1, "\n"],
['remove', 8, 0, "eggplant"],
['skip', 1, 1]
], ["banana\n", "cabbage\n", "duffle\n"]);
runMutationTest(4, ["15\n"], [
['skip', 1],
['insert', "\n2\n3\n4\n", 4],
['skip', 2, 1]
], ["1\n", "2\n", "3\n", "4\n", "5\n"]);
runMutationTest(5, ["1\n", "2\n", "3\n", "4\n", "5\n"], [
['skip', 1],
['remove', 7, 4, "\n2\n3\n4\n"],
['skip', 2, 1]
], ["15\n"]);
runMutationTest(6, ["123\n", "abc\n", "def\n", "ghi\n", "xyz\n"], [
['insert', "0"],
['skip', 4, 1],
['skip', 4, 1],
['remove', 8, 2, "def\nghi\n"],
['skip', 4, 1]
], ["0123\n", "abc\n", "xyz\n"]);
runMutationTest(7, ["apple\n", "banana\n", "cabbage\n", "duffle\n", "eggplant\n"], [
['remove', 6, 1, "apple\n"],
['skip', 15, 2, true],
['skip', 6, 0, true],
['remove', 1, 1, "\n"],
['remove', 8, 0, "eggplant"],
['skip', 1, 1, true]
], ["banana\n", "cabbage\n", "duffle\n"]);
function poolOrArray(attribs) {
if (attribs.getAttrib) {
return attribs; // it's already an attrib pool
} else {
// assume it's an array of attrib strings to be split and added
var p = AttributePoolFactory.createAttributePool();
attribs.forEach(function (kv) {
p.putAttrib(kv.split(','));
});
return p;
}
}
function runApplyToAttributionTest(testId, attribs, cs, inAttr, outCorrect) {
print("> applyToAttribution#" + testId);
var p = poolOrArray(attribs);
var result = Changeset.applyToAttribution(
Changeset.checkRep(cs), inAttr, p);
assertEqualStrings(outCorrect, result);
}
// turn c<b>a</b>ctus\n into a<b>c</b>tusabcd\n
runApplyToAttributionTest(1, ['bold,', 'bold,true'], "Z:7>3-1*0=1*1=1=3+4$abcd", "+1*1+1|1+5", "+1*1+1|1+8");
// turn "david\ngreenspan\n" into "<b>david\ngreen</b>\n"
runApplyToAttributionTest(2, ['bold,', 'bold,true'], "Z:g<4*1|1=6*1=5-4$", "|2+g", "*1|1+6*1+5|1+1");
(function () {
print("> mutatorHasMore");
var lines = ["1\n", "2\n", "3\n", "4\n"];
var mu;
mu = Changeset.textLinesMutator(lines);
assert(mu.hasMore() + ' == true');
mu.skip(8, 4);
assert(mu.hasMore() + ' == false');
mu.close();
assert(mu.hasMore() + ' == false');
// still 1,2,3,4
mu = Changeset.textLinesMutator(lines);
assert(mu.hasMore() + ' == true');
mu.remove(2, 1);
assert(mu.hasMore() + ' == true');
mu.skip(2, 1);
assert(mu.hasMore() + ' == true');
mu.skip(2, 1);
assert(mu.hasMore() + ' == true');
mu.skip(2, 1);
assert(mu.hasMore() + ' == false');
mu.insert("5\n", 1);
assert(mu.hasMore() + ' == false');
mu.close();
assert(mu.hasMore() + ' == false');
// 2,3,4,5 now
mu = Changeset.textLinesMutator(lines);
assert(mu.hasMore() + ' == true');
mu.remove(6, 3);
assert(mu.hasMore() + ' == true');
mu.remove(2, 1);
assert(mu.hasMore() + ' == false');
mu.insert("hello\n", 1);
assert(mu.hasMore() + ' == false');
mu.close();
assert(mu.hasMore() + ' == false');
})();
function runMutateAttributionTest(testId, attribs, cs, alines, outCorrect) {
print("> runMutateAttributionTest#" + testId);
var p = poolOrArray(attribs);
var alines2 = Array.prototype.slice.call(alines);
var result = Changeset.mutateAttributionLines(
Changeset.checkRep(cs), alines2, p);
assertEqualArrays(outCorrect, alines2);
print("> runMutateAttributionTest#" + testId + ".applyToAttribution");
function removeQuestionMarks(a) {
return a.replace(/\?/g, '');
}
var inMerged = Changeset.joinAttributionLines(alines.map(removeQuestionMarks));
var correctMerged = Changeset.joinAttributionLines(outCorrect.map(removeQuestionMarks));
var mergedResult = Changeset.applyToAttribution(cs, inMerged, p);
assertEqualStrings(correctMerged, mergedResult);
}
// turn 123\n 456\n 789\n into 123\n 4<b>5</b>6\n 789\n
runMutateAttributionTest(1, ["bold,true"], "Z:c>0|1=4=1*0=1$", ["|1+4", "|1+4", "|1+4"], ["|1+4", "+1*0+1|1+2", "|1+4"]);
// make a document bold
runMutateAttributionTest(2, ["bold,true"], "Z:c>0*0|3=c$", ["|1+4", "|1+4", "|1+4"], ["*0|1+4", "*0|1+4", "*0|1+4"]);
// clear bold on document
runMutateAttributionTest(3, ["bold,", "bold,true"], "Z:c>0*0|3=c$", ["*1+1+1*1+1|1+1", "+1*1+1|1+2", "*1+1+1*1+1|1+1"], ["|1+4", "|1+4", "|1+4"]);
// add a character on line 3 of a document with 5 blank lines, and make sure
// the optimization that skips purely-kept lines is working; if any attribution string
// with a '?' is parsed it will cause an error.
runMutateAttributionTest(4, ['foo,bar', 'line,1', 'line,2', 'line,3', 'line,4', 'line,5'], "Z:5>1|2=2+1$x", ["?*1|1+1", "?*2|1+1", "*3|1+1", "?*4|1+1", "?*5|1+1"], ["?*1|1+1", "?*2|1+1", "+1*3|1+1", "?*4|1+1", "?*5|1+1"]);
var testPoolWithChars = (function () {
var p = AttributePoolFactory.createAttributePool();
p.putAttrib(['char', 'newline']);
for (var i = 1; i < 36; i++) {
p.putAttrib(['char', Changeset.numToString(i)]);
}
p.putAttrib(['char', '']);
return p;
})();
// based on runMutationTest#1
runMutateAttributionTest(5, testPoolWithChars, "Z:11>7-2*t+1*u+1|2=b|2+a=2*b+1*o+1*t+1*0|1+1*b+1*u+1=3|1-3-6$" + "tucream\npie\nbot\nbu", ["*a+1*p+2*l+1*e+1*0|1+1", "*b+1*a+1*n+1*a+1*n+1*a+1*0|1+1", "*c+1*a+1*b+2*a+1*g+1*e+1*0|1+1", "*d+1*u+1*f+2*l+1*e+1*0|1+1", "*e+1*g+2*p+1*l+1*a+1*n+1*t+1*0|1+1"], ["*t+1*u+1*p+1*l+1*e+1*0|1+1", "*b+1*a+1*n+1*a+1*n+1*a+1*0|1+1", "|1+6", "|1+4", "*c+1*a+1*b+1*o+1*t+1*0|1+1", "*b+1*u+1*b+2*a+1*0|1+1", "*e+1*g+2*p+1*l+1*a+1*n+1*t+1*0|1+1"]);
// based on runMutationTest#3
runMutateAttributionTest(6, testPoolWithChars, "Z:11<f|1-6|2=f=6|1-1-8$", ["*a|1+6", "*b|1+7", "*c|1+8", "*d|1+7", "*e|1+9"], ["*b|1+7", "*c|1+8", "*d+6*e|1+1"]);
// based on runMutationTest#4
runMutateAttributionTest(7, testPoolWithChars, "Z:3>7=1|4+7$\n2\n3\n4\n", ["*1+1*5|1+2"], ["*1+1|1+1", "|1+2", "|1+2", "|1+2", "*5|1+2"]);
// based on runMutationTest#5
runMutateAttributionTest(8, testPoolWithChars, "Z:a<7=1|4-7$", ["*1|1+2", "*2|1+2", "*3|1+2", "*4|1+2", "*5|1+2"], ["*1+1*5|1+2"]);
// based on runMutationTest#6
runMutateAttributionTest(9, testPoolWithChars, "Z:k<7*0+1*10|2=8|2-8$0", ["*1+1*2+1*3+1|1+1", "*a+1*b+1*c+1|1+1", "*d+1*e+1*f+1|1+1", "*g+1*h+1*i+1|1+1", "?*x+1*y+1*z+1|1+1"], ["*0+1|1+4", "|1+4", "?*x+1*y+1*z+1|1+1"]);
runMutateAttributionTest(10, testPoolWithChars, "Z:6>4=1+1=1+1|1=1+1=1*0+1$abcd", ["|1+3", "|1+3"], ["|1+5", "+2*0+1|1+2"]);
runMutateAttributionTest(11, testPoolWithChars, "Z:s>1|1=4=6|1+1$\n", ["*0|1+4", "*0|1+8", "*0+5|1+1", "*0|1+1", "*0|1+5", "*0|1+1", "*0|1+1", "*0|1+1", "|1+1"], ["*0|1+4", "*0+6|1+1", "*0|1+2", "*0+5|1+1", "*0|1+1", "*0|1+5", "*0|1+1", "*0|1+1", "*0|1+1", "|1+1"]);
function randomInlineString(len, rand) {
var assem = Changeset.stringAssembler();
for (var i = 0; i < len; i++) {
assem.append(String.fromCharCode(rand.nextInt(26) + 97));
}
return assem.toString();
}
function randomMultiline(approxMaxLines, approxMaxCols, rand) {
var numParts = rand.nextInt(approxMaxLines * 2) + 1;
var txt = Changeset.stringAssembler();
txt.append(rand.nextInt(2) ? '\n' : '');
for (var i = 0; i < numParts; i++) {
if ((i % 2) == 0) {
if (rand.nextInt(10)) {
txt.append(randomInlineString(rand.nextInt(approxMaxCols) + 1, rand));
} else {
txt.append('\n');
}
} else {
txt.append('\n');
}
}
return txt.toString();
}
function randomStringOperation(numCharsLeft, rand) {
var result;
switch (rand.nextInt(9)) {
case 0:
{
// insert char
result = {
insert: randomInlineString(1, rand)
};
break;
}
case 1:
{
// delete char
result = {
remove: 1
};
break;
}
case 2:
{
// skip char
result = {
skip: 1
};
break;
}
case 3:
{
// insert small
result = {
insert: randomInlineString(rand.nextInt(4) + 1, rand)
};
break;
}
case 4:
{
// delete small
result = {
remove: rand.nextInt(4) + 1
};
break;
}
case 5:
{
// skip small
result = {
skip: rand.nextInt(4) + 1
};
break;
}
case 6:
{
// insert multiline;
result = {
insert: randomMultiline(5, 20, rand)
};
break;
}
case 7:
{
// delete multiline
result = {
remove: Math.round(numCharsLeft * rand.nextDouble() * rand.nextDouble())
};
break;
}
case 8:
{
// skip multiline
result = {
skip: Math.round(numCharsLeft * rand.nextDouble() * rand.nextDouble())
};
break;
}
case 9:
{
// delete to end
result = {
remove: numCharsLeft
};
break;
}
case 10:
{
// skip to end
result = {
skip: numCharsLeft
};
break;
}
}
var maxOrig = numCharsLeft - 1;
if ('remove' in result) {
result.remove = Math.min(result.remove, maxOrig);
} else if ('skip' in result) {
result.skip = Math.min(result.skip, maxOrig);
}
return result;
}
function randomTwoPropAttribs(opcode, rand) {
// assumes attrib pool like ['apple,','apple,true','banana,','banana,true']
if (opcode == '-' || rand.nextInt(3)) {
return '';
} else if (rand.nextInt(3)) {
if (opcode == '+' || rand.nextInt(2)) {
return '*' + Changeset.numToString(rand.nextInt(2) * 2 + 1);
} else {
return '*' + Changeset.numToString(rand.nextInt(2) * 2);
}
} else {
if (opcode == '+' || rand.nextInt(4) == 0) {
return '*1*3';
} else {
return ['*0*2', '*0*3', '*1*2'][rand.nextInt(3)];
}
}
}
function randomTestChangeset(origText, rand, withAttribs) {
var charBank = Changeset.stringAssembler();
var textLeft = origText; // always keep final newline
var outTextAssem = Changeset.stringAssembler();
var opAssem = Changeset.smartOpAssembler();
var oldLen = origText.length;
var nextOp = Changeset.newOp();
function appendMultilineOp(opcode, txt) {
nextOp.opcode = opcode;
if (withAttribs) {
nextOp.attribs = randomTwoPropAttribs(opcode, rand);
}
txt.replace(/\n|[^\n]+/g, function (t) {
if (t == '\n') {
nextOp.chars = 1;
nextOp.lines = 1;
opAssem.append(nextOp);
} else {
nextOp.chars = t.length;
nextOp.lines = 0;
opAssem.append(nextOp);
}
return '';
});
}
function doOp() {
var o = randomStringOperation(textLeft.length, rand);
if (o.insert) {
var txt = o.insert;
charBank.append(txt);
outTextAssem.append(txt);
appendMultilineOp('+', txt);
} else if (o.skip) {
var txt = textLeft.substring(0, o.skip);
textLeft = textLeft.substring(o.skip);
outTextAssem.append(txt);
appendMultilineOp('=', txt);
} else if (o.remove) {
var txt = textLeft.substring(0, o.remove);
textLeft = textLeft.substring(o.remove);
appendMultilineOp('-', txt);
}
}
while (textLeft.length > 1) doOp();
for (var i = 0; i < 5; i++) doOp(); // do some more (only insertions will happen)
var outText = outTextAssem.toString() + '\n';
opAssem.endDocument();
var cs = Changeset.pack(oldLen, outText.length, opAssem.toString(), charBank.toString());
Changeset.checkRep(cs);
return [cs, outText];
}
function testCompose(randomSeed) {
var rand = new random();
print("> testCompose#" + randomSeed);
var p = AttributePoolFactory.createAttributePool();
var startText = randomMultiline(10, 20, rand) + '\n';
var x1 = randomTestChangeset(startText, rand);
var change1 = x1[0];
var text1 = x1[1];
var x2 = randomTestChangeset(text1, rand);
var change2 = x2[0];
var text2 = x2[1];
var x3 = randomTestChangeset(text2, rand);
var change3 = x3[0];
var text3 = x3[1];
//print(literal(Changeset.toBaseTen(startText)));
//print(literal(Changeset.toBaseTen(change1)));
//print(literal(Changeset.toBaseTen(change2)));
var change12 = Changeset.checkRep(Changeset.compose(change1, change2, p));
var change23 = Changeset.checkRep(Changeset.compose(change2, change3, p));
var change123 = Changeset.checkRep(Changeset.compose(change12, change3, p));
var change123a = Changeset.checkRep(Changeset.compose(change1, change23, p));
assertEqualStrings(change123, change123a);
assertEqualStrings(text2, Changeset.applyToText(change12, startText));
assertEqualStrings(text3, Changeset.applyToText(change23, text1));
assertEqualStrings(text3, Changeset.applyToText(change123, startText));
}
for (var i = 0; i < 30; i++) testCompose(i);
(function simpleComposeAttributesTest() {
print("> simpleComposeAttributesTest");
var p = AttributePoolFactory.createAttributePool();
p.putAttrib(['bold', '']);
p.putAttrib(['bold', 'true']);
var cs1 = Changeset.checkRep("Z:2>1*1+1*1=1$x");
var cs2 = Changeset.checkRep("Z:3>0*0|1=3$");
var cs12 = Changeset.checkRep(Changeset.compose(cs1, cs2, p));
assertEqualStrings("Z:2>1+1*0|1=2$x", cs12);
})();
(function followAttributesTest() {
var p = AttributePoolFactory.createAttributePool();
p.putAttrib(['x', '']);
p.putAttrib(['x', 'abc']);
p.putAttrib(['x', 'def']);
p.putAttrib(['y', '']);
p.putAttrib(['y', 'abc']);
p.putAttrib(['y', 'def']);
function testFollow(a, b, afb, bfa, merge) {
assertEqualStrings(afb, Changeset.followAttributes(a, b, p));
assertEqualStrings(bfa, Changeset.followAttributes(b, a, p));
assertEqualStrings(merge, Changeset.composeAttributes(a, afb, true, p));
assertEqualStrings(merge, Changeset.composeAttributes(b, bfa, true, p));
}
testFollow('', '', '', '', '');
testFollow('*0', '', '', '*0', '*0');
testFollow('*0', '*0', '', '', '*0');
testFollow('*0', '*1', '', '*0', '*0');
testFollow('*1', '*2', '', '*1', '*1');
testFollow('*0*1', '', '', '*0*1', '*0*1');
testFollow('*0*4', '*2*3', '*3', '*0', '*0*3');
testFollow('*0*4', '*2', '', '*0*4', '*0*4');
})();
function testFollow(randomSeed) {
var rand = new random();
print("> testFollow#" + randomSeed);
var p = AttributePoolFactory.createAttributePool();
var startText = randomMultiline(10, 20, rand) + '\n';
var cs1 = randomTestChangeset(startText, rand)[0];
var cs2 = randomTestChangeset(startText, rand)[0];
var afb = Changeset.checkRep(Changeset.follow(cs1, cs2, false, p));
var bfa = Changeset.checkRep(Changeset.follow(cs2, cs1, true, p));
var merge1 = Changeset.checkRep(Changeset.compose(cs1, afb));
var merge2 = Changeset.checkRep(Changeset.compose(cs2, bfa));
assertEqualStrings(merge1, merge2);
}
for (var i = 0; i < 30; i++) testFollow(i);
function testSplitJoinAttributionLines(randomSeed) {
var rand = new random();
print("> testSplitJoinAttributionLines#" + randomSeed);
var doc = randomMultiline(10, 20, rand) + '\n';
function stringToOps(str) {
var assem = Changeset.mergingOpAssembler();
var o = Changeset.newOp('+');
o.chars = 1;
for (var i = 0; i < str.length; i++) {
var c = str.charAt(i);
o.lines = (c == '\n' ? 1 : 0);
o.attribs = (c == 'a' || c == 'b' ? '*' + c : '');
assem.append(o);
}
return assem.toString();
}
var theJoined = stringToOps(doc);
var theSplit = doc.match(/[^\n]*\n/g).map(stringToOps);
assertEqualArrays(theSplit, Changeset.splitAttributionLines(theJoined, doc));
assertEqualStrings(theJoined, Changeset.joinAttributionLines(theSplit));
}
for (var i = 0; i < 10; i++) testSplitJoinAttributionLines(i);
(function testMoveOpsToNewPool() {
print("> testMoveOpsToNewPool");
var pool1 = AttributePoolFactory.createAttributePool();
var pool2 = AttributePoolFactory.createAttributePool();
pool1.putAttrib(['baz', 'qux']);
pool1.putAttrib(['foo', 'bar']);
pool2.putAttrib(['foo', 'bar']);
assertEqualStrings(Changeset.moveOpsToNewPool('Z:1>2*1+1*0+1$ab', pool1, pool2), 'Z:1>2*0+1*1+1$ab');
assertEqualStrings(Changeset.moveOpsToNewPool('*1+1*0+1', pool1, pool2), '*0+1*1+1');
})();
(function testMakeSplice() {
print("> testMakeSplice");
var t = "a\nb\nc\n";
var t2 = Changeset.applyToText(Changeset.makeSplice(t, 5, 0, "def"), t);
assertEqualStrings("a\nb\ncdef\n", t2);
})();
(function testToSplices() {
print("> testToSplices");
var cs = Changeset.checkRep('Z:z>9*0=1=4-3+9=1|1-4-4+1*0+a$123456789abcdefghijk');
var correctSplices = [
[5, 8, "123456789"],
[9, 17, "abcdefghijk"]
];
assertEqualArrays(correctSplices, Changeset.toSplices(cs));
})();
function testCharacterRangeFollow(testId, cs, oldRange, insertionsAfter, correctNewRange) {
print("> testCharacterRangeFollow#" + testId);
var cs = Changeset.checkRep(cs);
assertEqualArrays(correctNewRange, Changeset.characterRangeFollow(cs, oldRange[0], oldRange[1], insertionsAfter));
}
testCharacterRangeFollow(1, 'Z:z>9*0=1=4-3+9=1|1-4-4+1*0+a$123456789abcdefghijk', [7, 10], false, [14, 15]);
testCharacterRangeFollow(2, "Z:bc<6|x=b4|2-6$", [400, 407], false, [400, 401]);
testCharacterRangeFollow(3, "Z:4>0-3+3$abc", [0, 3], false, [3, 3]);
testCharacterRangeFollow(4, "Z:4>0-3+3$abc", [0, 3], true, [0, 0]);
testCharacterRangeFollow(5, "Z:5>1+1=1-3+3$abcd", [1, 4], false, [5, 5]);
testCharacterRangeFollow(6, "Z:5>1+1=1-3+3$abcd", [1, 4], true, [2, 2]);
testCharacterRangeFollow(7, "Z:5>1+1=1-3+3$abcd", [0, 6], false, [1, 7]);
testCharacterRangeFollow(8, "Z:5>1+1=1-3+3$abcd", [0, 3], false, [1, 2]);
testCharacterRangeFollow(9, "Z:5>1+1=1-3+3$abcd", [2, 5], false, [5, 6]);
testCharacterRangeFollow(10, "Z:2>1+1$a", [0, 0], false, [1, 1]);
testCharacterRangeFollow(11, "Z:2>1+1$a", [0, 0], true, [0, 0]);
(function testOpAttributeValue() {
print("> testOpAttributeValue");
var p = AttributePoolFactory.createAttributePool();
p.putAttrib(['name', 'david']);
p.putAttrib(['color', 'green']);
assertEqualStrings("david", Changeset.opAttributeValue(Changeset.stringOp('*0*1+1'), 'name', p));
assertEqualStrings("david", Changeset.opAttributeValue(Changeset.stringOp('*0+1'), 'name', p));
assertEqualStrings("", Changeset.opAttributeValue(Changeset.stringOp('*1+1'), 'name', p));
assertEqualStrings("", Changeset.opAttributeValue(Changeset.stringOp('+1'), 'name', p));
assertEqualStrings("green", Changeset.opAttributeValue(Changeset.stringOp('*0*1+1'), 'color', p));
assertEqualStrings("green", Changeset.opAttributeValue(Changeset.stringOp('*1+1'), 'color', p));
assertEqualStrings("", Changeset.opAttributeValue(Changeset.stringOp('*0+1'), 'color', p));
assertEqualStrings("", Changeset.opAttributeValue(Changeset.stringOp('+1'), 'color', p));
})();
function testAppendATextToAssembler(testId, atext, correctOps) {
print("> testAppendATextToAssembler#" + testId);
var assem = Changeset.smartOpAssembler();
Changeset.appendATextToAssembler(atext, assem);
assertEqualStrings(correctOps, assem.toString());
}
testAppendATextToAssembler(1, {
text: "\n",
attribs: "|1+1"
}, "");
testAppendATextToAssembler(2, {
text: "\n\n",
attribs: "|2+2"
}, "|1+1");
testAppendATextToAssembler(3, {
text: "\n\n",
attribs: "*x|2+2"
}, "*x|1+1");
testAppendATextToAssembler(4, {
text: "\n\n",
attribs: "*x|1+1|1+1"
}, "*x|1+1");
testAppendATextToAssembler(5, {
text: "foo\n",
attribs: "|1+4"
}, "+3");
testAppendATextToAssembler(6, {
text: "\nfoo\n",
attribs: "|2+5"
}, "|1+1+3");
testAppendATextToAssembler(7, {
text: "\nfoo\n",
attribs: "*x|2+5"
}, "*x|1+1*x+3");
testAppendATextToAssembler(8, {
text: "\n\n\nfoo\n",
attribs: "|2+2*x|2+5"
}, "|2+2*x|1+1*x+3");
function testMakeAttribsString(testId, pool, opcode, attribs, correctString) {
print("> testMakeAttribsString#" + testId);
var p = poolOrArray(pool);
var str = Changeset.makeAttribsString(opcode, attribs, p);
assertEqualStrings(correctString, str);
}
testMakeAttribsString(1, ['bold,'], '+', [
['bold', '']
], '');
testMakeAttribsString(2, ['abc,def', 'bold,'], '=', [
['bold', '']
], '*1');
testMakeAttribsString(3, ['abc,def', 'bold,true'], '+', [
['abc', 'def'],
['bold', 'true']
], '*0*1');
testMakeAttribsString(4, ['abc,def', 'bold,true'], '+', [
['bold', 'true'],
['abc', 'def']
], '*0*1');
function testSubattribution(testId, astr, start, end, correctOutput) {
print("> testSubattribution#" + testId);
var str = Changeset.subattribution(astr, start, end);
assertEqualStrings(correctOutput, str);
}
testSubattribution(1, "+1", 0, 0, "");
testSubattribution(2, "+1", 0, 1, "+1");
testSubattribution(3, "+1", 0, undefined, "+1");
testSubattribution(4, "|1+1", 0, 0, "");
testSubattribution(5, "|1+1", 0, 1, "|1+1");
testSubattribution(6, "|1+1", 0, undefined, "|1+1");
testSubattribution(7, "*0+1", 0, 0, "");
testSubattribution(8, "*0+1", 0, 1, "*0+1");
testSubattribution(9, "*0+1", 0, undefined, "*0+1");
testSubattribution(10, "*0|1+1", 0, 0, "");
testSubattribution(11, "*0|1+1", 0, 1, "*0|1+1");
testSubattribution(12, "*0|1+1", 0, undefined, "*0|1+1");
testSubattribution(13, "*0+2+1*1+3", 0, 1, "*0+1");
testSubattribution(14, "*0+2+1*1+3", 0, 2, "*0+2");
testSubattribution(15, "*0+2+1*1+3", 0, 3, "*0+2+1");
testSubattribution(16, "*0+2+1*1+3", 0, 4, "*0+2+1*1+1");
testSubattribution(17, "*0+2+1*1+3", 0, 5, "*0+2+1*1+2");
testSubattribution(18, "*0+2+1*1+3", 0, 6, "*0+2+1*1+3");
testSubattribution(19, "*0+2+1*1+3", 0, 7, "*0+2+1*1+3");
testSubattribution(20, "*0+2+1*1+3", 0, undefined, "*0+2+1*1+3");
testSubattribution(21, "*0+2+1*1+3", 1, undefined, "*0+1+1*1+3");
testSubattribution(22, "*0+2+1*1+3", 2, undefined, "+1*1+3");
testSubattribution(23, "*0+2+1*1+3", 3, undefined, "*1+3");
testSubattribution(24, "*0+2+1*1+3", 4, undefined, "*1+2");
testSubattribution(25, "*0+2+1*1+3", 5, undefined, "*1+1");
testSubattribution(26, "*0+2+1*1+3", 6, undefined, "");
testSubattribution(27, "*0+2+1*1|1+3", 0, 1, "*0+1");
testSubattribution(28, "*0+2+1*1|1+3", 0, 2, "*0+2");
testSubattribution(29, "*0+2+1*1|1+3", 0, 3, "*0+2+1");
testSubattribution(30, "*0+2+1*1|1+3", 0, 4, "*0+2+1*1+1");
testSubattribution(31, "*0+2+1*1|1+3", 0, 5, "*0+2+1*1+2");
testSubattribution(32, "*0+2+1*1|1+3", 0, 6, "*0+2+1*1|1+3");
testSubattribution(33, "*0+2+1*1|1+3", 0, 7, "*0+2+1*1|1+3");
testSubattribution(34, "*0+2+1*1|1+3", 0, undefined, "*0+2+1*1|1+3");
testSubattribution(35, "*0+2+1*1|1+3", 1, undefined, "*0+1+1*1|1+3");
testSubattribution(36, "*0+2+1*1|1+3", 2, undefined, "+1*1|1+3");
testSubattribution(37, "*0+2+1*1|1+3", 3, undefined, "*1|1+3");
testSubattribution(38, "*0+2+1*1|1+3", 4, undefined, "*1|1+2");
testSubattribution(39, "*0+2+1*1|1+3", 5, undefined, "*1|1+1");
testSubattribution(40, "*0+2+1*1|1+3", 1, 5, "*0+1+1*1+2");
testSubattribution(41, "*0+2+1*1|1+3", 2, 6, "+1*1|1+3");
testSubattribution(42, "*0+2+1*1+3", 2, 6, "+1*1+3");
function testFilterAttribNumbers(testId, cs, filter, correctOutput) {
print("> testFilterAttribNumbers#" + testId);
var str = Changeset.filterAttribNumbers(cs, filter);
assertEqualStrings(correctOutput, str);
}
testFilterAttribNumbers(1, "*0*1+1+2+3*1+4*2+5*0*2*1*b*c+6", function (n) {
return (n % 2) == 0;
}, "*0+1+2+3+4*2+5*0*2*c+6");
testFilterAttribNumbers(2, "*0*1+1+2+3*1+4*2+5*0*2*1*b*c+6", function (n) {
return (n % 2) == 1;
}, "*1+1+2+3*1+4+5*1*b+6");
function testInverse(testId, cs, lines, alines, pool, correctOutput) {
print("> testInverse#" + testId);
pool = poolOrArray(pool);
var str = Changeset.inverse(Changeset.checkRep(cs), lines, alines, pool);
assertEqualStrings(correctOutput, str);
}
// take "FFFFTTTTT" and apply "-FT--FFTT", the inverse of which is "--F--TT--"
testInverse(1, "Z:9>0=1*0=1*1=1=2*0=2*1|1=2$", null, ["+4*1+5"], ['bold,', 'bold,true'], "Z:9>0=2*0=1=2*1=2$");
function testMutateTextLines(testId, cs, lines, correctLines) {
print("> testMutateTextLines#" + testId);
var a = lines.slice();
Changeset.mutateTextLines(cs, a);
assertEqualArrays(correctLines, a);
}
testMutateTextLines(1, "Z:4<1|1-2-1|1+1+1$\nc", ["a\n", "b\n"], ["\n", "c\n"]);
testMutateTextLines(2, "Z:4>0|1-2-1|2+3$\nc\n", ["a\n", "b\n"], ["\n", "c\n", "\n"]);
function testInverseRandom(randomSeed) {
var rand = new random();
print("> testInverseRandom#" + randomSeed);
var p = poolOrArray(['apple,', 'apple,true', 'banana,', 'banana,true']);
var startText = randomMultiline(10, 20, rand) + '\n';
var alines = Changeset.splitAttributionLines(Changeset.makeAttribution(startText), startText);
var lines = startText.slice(0, -1).split('\n').map(function (s) {
return s + '\n';
});
var stylifier = randomTestChangeset(startText, rand, true)[0];
//print(alines.join('\n'));
Changeset.mutateAttributionLines(stylifier, alines, p);
//print(stylifier);
//print(alines.join('\n'));
Changeset.mutateTextLines(stylifier, lines);
var changeset = randomTestChangeset(lines.join(''), rand, true)[0];
var inverseChangeset = Changeset.inverse(changeset, lines, alines, p);
var origLines = lines.slice();
var origALines = alines.slice();
Changeset.mutateTextLines(changeset, lines);
Changeset.mutateAttributionLines(changeset, alines, p);
//print(origALines.join('\n'));
//print(changeset);
//print(inverseChangeset);
//print(origLines.map(function(s) { return '1: '+s.slice(0,-1); }).join('\n'));
//print(lines.map(function(s) { return '2: '+s.slice(0,-1); }).join('\n'));
//print(alines.join('\n'));
Changeset.mutateTextLines(inverseChangeset, lines);
Changeset.mutateAttributionLines(inverseChangeset, alines, p);
//print(lines.map(function(s) { return '3: '+s.slice(0,-1); }).join('\n'));
assertEqualArrays(origLines, lines);
assertEqualArrays(origALines, alines);
}
for (var i = 0; i < 30; i++) testInverseRandom(i);
}
runTests();

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// Simple Node & Socket server
var http = require('http')
, url = require('url')
, fs = require('fs')
, io = require('socket.io')
, sys = require('sys')
, server;
server = http.createServer(function(req, res){
var path = url.parse(req.url).pathname;
if(path.substring(0,"/static".length) == "/static" || path.substring(0,"/p/".length) == "/p/")
{
if(path.substring(0,"/p/".length) == "/p/")
{
if(path.length < 7)
send404(res, path);
path = "/static/padhtml";
}
sendFile(res, path, __dirname + "/.." + path);
}
else if(path == "/")
{
sendRedirect(res, path, "/p/test");
}
else if(path == "/newpad")
{
sendRedirect(res, path, "/p/" + randomPadName());
}
else if(path == "/ep/pad/reconnect")
{
if(req.headers.referer != null)
sendRedirect(res, path, req.headers.referer);
else
send404(res, path);
}
else
{
send404(res, path);
}
});
server.listen(80);
function randomPadName() {
var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
var string_length = 10;
var randomstring = '';
for (var i=0; i<string_length; i++) {
var rnum = Math.floor(Math.random() * chars.length);
randomstring += chars.substring(rnum,rnum+1);
}
return randomstring;
}
function sendFile(res, reqPath, path)
{
fs.readFile(path, function(err, data){
if (err){
send404(res, reqPath);
} else {
var contentType = "text/html";
if (path.substring(path.length -3, path.length) == ".js")
contentType = "text/javascript";
else if (path.substring(path.length -4, path.length) == ".css")
contentType = "text/css";
else if (path.substring(path.length -4, path.length) == ".gif")
contentType = "image/gif";
res.writeHead(200, {'Content-Type': contentType});
res.write(data, 'utf8');
res.end();
requestLog(200, reqPath, "-> " + path);
}
});
}
function send404(res, reqPath)
{
res.writeHead(404);
res.write("404 - Not Found");
res.end();
requestLog(404, reqPath, "NOT FOUND!");
}
function sendRedirect(res, reqPath, location)
{
res.writeHead(302, {'Location': location});
res.end();
requestLog(302, reqPath, "-> " + location);
}
function requestLog(code, path, desc)
{
//console.log(code +", " + path + ", " + desc);
}
var io = io.listen(server);
var messageHandler = require("./MessageHandler");
messageHandler.setSocketIO(io);
io.on('connection', function(client){
try{
messageHandler.handleConnect(client);
}catch(e){console.error(e);}
client.on('message', function(message){
//try{
messageHandler.handleMessage(client, message);
//}catch(e){console.error(e);}
});
client.on('disconnect', function(){
try{
messageHandler.handleDisconnect(client);
}catch(e){console.error(e);}
});
});