Namespaced Source Structure

Doctrine Core

trunk/
  src/ (Namespace starts here)
    '''Doctrine'''/
      '''Common'''/
        '''Exceptions'''/
          ...
        EventManager.php
        Event.php
        Configuration.php
        ...
      '''DBAL'''/
        '''Exceptions'''/
          ...
        '''Connections'''/
          MysqlConnection.php
          OracleConnection.php
          ...
        ...
      '''ORM'''/
        '''Internal/'''
          UnitOfWork.php
        '''DQL/'''
          '''AST/'''
            SelectExpressionNode.php
            SelectClauseNode.php
            ...
          ...
        '''Exceptions/'''
          EntityManagerException.php
          MappingException.php
          ...
        '''Events'''
          Event.php
          PreSaveEvent.php
          ...
        '''Mapping'''
          ClassMetadata.php
          AssociationMapping.php 
          OneToOneMapping.php
          OneToManyMapping.php
          ManyToManyMapping.php
          ...
      Entity.php
      EntityManager.php
        //...
      
  test/ (Namespace starts here)
    '''Doctrine/'''
      '''Tests/'''
        '''ORM/'''
        '''DBAL/'''
  manual/

Doctrine Validator

trunk/
  src/ (Namespace starts here)
    '''Doctrine'''/
      '''Validator'''/
        ValidationException.php
        ValidationListener.php
        Validator.php
        EmailValidator.php
        UniqueValidator.php
        NotnullValidator.php
        ...
      
  test/ (Namespace starts here)
    '''Doctrine/'''
      '''Validator/'''
        '''Tests/'''
          ...
  manual/