You can download our latest version at the SVN Repository:
https://svn.typo3.org/TYPO3v4/Extensions/t3editor/branches/t3editor_codecompletion

Use your TYPO3-account to log in.

We refactured the code and made some performance-improvements too. Last but not least we integrated several important features which i would not like to miss.

Check them out: (this is revision 63 of the codecompletion)

Now there is still a lot of work since we have to create the whole xml typoscript reference out of the html-tsref. If you want to help, or have any ideas how this could be automatically done you are welcome!

// plugin-baseclass
require_once(PATH_tslib.'class.tslib_pibase.php');
// classes for retrieving the typoscript configuration of the current page
require_once(PATH_t3lib.'class.t3lib_page.php');
require_once(PATH_t3lib.'class.t3lib_tstemplate.php');
require_once(PATH_t3lib.'class.t3lib_tsparser_ext.php');
// class for rendering content, retrieving and substituting markers in templates,...
require_once(PATH_tslib.'class.tslib_content.php');
// tools
require_once(PATH_t3lib.'class.t3lib_div.php');
// extensionmanager
require_once(PATH_t3lib.'class.t3lib_extmgm.php');
require_once(PATH_t3lib.'config_default.php');
// basic configuration of TYPO3 - can be configured via the install tool
require_once(PATH_typo3conf.'localconf.php');
// main frontend class
require_once(PATH_tslib.'class.tslib_fe.php');
// classes for user authentication for frontend and backendusers, sessionmanagement
require_once(PATH_t3lib.'class.t3lib_userauth.php');
require_once(PATH_tslib.'class.tslib_feuserauth.php');

class myFEOutput extends tslib_pibase {
 
  var $id;
  var $conf;
 
  function main(){
    return "hello world!";
  }  
}

// creating a fake TSFE object
$TSFEclassName = t3lib_div::makeInstanceClassName('tslib_fe');
// retrieving the id of the current page
$id = isset($HTTP_GET_VARS['id'])?$HTTP_GET_VARS['id']:0;
// configure the TSFE object
$GLOBALS['TSFE'] = new $TSFEclassName($TYPO3_CONF_VARS, $id, '0', 1, '', '','','');
$GLOBALS['TSFE']->connectToMySQL();
$GLOBALS['TSFE']->initFEuser();
$GLOBALS['TSFE']->fetch_the_id();
$GLOBALS['TSFE']->getPageAndRootline();
$GLOBALS['TSFE']->initTemplate();
$GLOBALS['TSFE']->tmpl->getFileName_backPath = PATH_site;
$GLOBALS['TSFE']->forceTemplateParsing = 1;
$GLOBALS['TSFE']->getConfigArray();

// create a plugin object    
$plugin = t3lib_div::makeInstance('myFEOutput');
// assign a contentobject for rendering content
$plugin->cObj = t3lib_div::makeInstance('tslib_cObj');
$sysPageObj = t3lib_div::makeInstance('t3lib_pageSelect');
// retrieve rootline
$rootLine = $sysPageObj->getRootLine($id);
// create a Typoscript parser object
$TSObj = t3lib_div::makeInstance('t3lib_tsparser_ext');
$TSObj->tt_track = 0;
$TSObj->init();
// parse the templates
$TSObj->runThroughTemplates($rootLine);
$TSObj->generateConfig();
$plugin->conf = $TSObj->setup['plugin.']['myFEOutput.'];

// output html
echo($plugin->main());

lib.languageSelector = COA
lib.languageSelector{
   10 = TEXT
   10.value = Languageselection: 
   20 = TEXT
   20.value = English
   30 = TEXT
   30.value =  | 
   40 = TEXT
   40.value = German
   40.typolink.parameter.data = TSFE:id
   40.typolink.additionalParams = &L=1
}

[globalVar = GP:L=1]
  config{
     sys_language_uid = 1
     language = de
     locale_all = german
  }
  lib.languageSelector{
     10.value = Sprachwahl: 
     40.typolink >
     20.typolink.parameter.data = TSFE:id
     20.typolink.additionalParams = &L=0
  }
[global]

<field_headline type="array">
  <tx_templavoila type="array">
    <title>Headline</title>
    <sample_data type="array">
      <numIndex index="0"></numIndex>
    </sample_data>
    <eType>input</eType>
    <TypoScript>
    <![CDATA[
      10 = TEXT
      10.data = register:tx_templavoila_pi1.parentRec.header
    ]]>
    </TypoScript>
    <proc type="array">
      <HSC type="integer">0</HSC>
    </proc>
  </tx_templavoila>
  <TCEforms type="array">
    <config type="array">
      <type>input</type>
      <size>48</size>
      <eval>trim</eval>
    </config>
    <label>Titel</label>
  </TCEforms>
</field_headline>

quite simple, eh?
if you were using an additional title-field by now (just as i always have), you could use both fields and make a switch.

<?xml version="1.0"?>
<field_title1 type="array">
  <tx_templavoila type="array">
    <title>title1</title>
    <sample_data type="array">
      <numIndex index="0"></numIndex>
    </sample_data>
    <eType>input_g</eType>
    <TypoScript>
      <![CDATA[
        10 = IMAGE
        10.file = GIFBUILDER
        10.if.isTrue.current = 1
        10.file{
           XY = [10.w]+10,28
           backColor = #FF0000
           5 = IMAGE
           5.tile = 15,0
           5.file = fileadmin/rackattack/design02/images/ce01_titlebg.gif
           5.offset = 0,0
           10 = TEXT
           10.text.current = 1
           10.fontColor = #FFFFFF
        }
        20 = IMAGE
        20.file = GIFBUILDER
        20.if.isTrue.data = register:tx_templavoila_pi1.parentRec.header
        20.file{
           XY = [10.w]+10,28
           backColor = #FF0000
           5 = IMAGE
           5.tile = 15,0
           5.file = fileadmin/rackattack/design02/images/ce01_titlebg.gif
           5.offset = 0,0
           10 = TEXT
           10.text.data = register:tx_templavoila_pi1.parentRec.header
           10.fontColor = #FFFFFF
        }
        ]]>
    </TypoScript>
  </tx_templavoila>
  <TCEforms type="array">
    <config type="array">
      <type>input</type>
      <size>48</size>
      <eval>trim</eval>
    </config>
    <label>Titel</label>
  </TCEforms>
</field_title1>

The lookup fields are connected to lists by using the GUID of the list which is generated when the list is created, so there is no way to know them before deployment.
As far as I have seen there is no simple and intuitive solution on the net by know, so I will give you more details on my approach to fix corrupt lookup columns:

Each column has a XML-schema which defines the datatype, label and contrains for the datafield. Lookup fields have an XML tag with a property "List" where the GUID of the foreign (lookup) list is stored. It is possible to set this old GUID to the new GUID of the current list programmatically.

I have written a tool where mappings between lists can be stored in a XML file which repairs damaged relations in one go. Maybe I will upload it this week.