wsdl/schema.cpp

/*

schema.cpp

XSD binding schema implementation

--------------------------------------------------------------------------------
gSOAP XML Web services tools
Copyright (C) 2001-2006, Robert van Engelen, Genivia Inc. All Rights Reserved.
This software is released under one of the following two licenses:
GPL or Genivia's license for commercial use.
--------------------------------------------------------------------------------
GPL license.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA

Author contact information:
engelen@genivia.com / engelen@acm.org
--------------------------------------------------------------------------------
A commercial use license is available from Genivia, Inc., contact@genivia.com
--------------------------------------------------------------------------------

*/

#include "wsdlH.h"		// cannot include "schemaH.h"

using namespace std;

extern int warn_ignore(struct soap*, const char*);
extern const char *qname_token(const char*, const char*);
extern int is_builtin_qname(const char*);

////////////////////////////////////////////////////////////////////////////////
//
//	schema
//
////////////////////////////////////////////////////////////////////////////////

xs__schema::xs__schema()
{ soap = soap_new1(SOAP_XML_TREE | SOAP_C_UTFSTRING);
#ifdef WITH_OPENSSL
  soap_ssl_client_context(soap, SOAP_SSL_NO_AUTHENTICATION, NULL, NULL, NULL, NULL, NULL);
#endif
#ifdef WITH_NONAMESPACES
  soap_set_namespaces(soap, namespaces);
#endif
  soap_default(soap);
  soap->fignore = warn_ignore;
  soap->encodingStyle = NULL;
  soap->proxy_host = proxy_host;
  soap->proxy_port = proxy_port;
  targetNamespace = NULL;
  version = NULL;
  updated = false;
  location = NULL;
  redirs = 0;
}

xs__schema::xs__schema(struct soap *copy)
{ soap = soap_copy(copy);
  soap_default(soap);
  soap->fignore = warn_ignore;
  soap->encodingStyle = NULL;
  targetNamespace = NULL;
  version = NULL;
  updated = false;
  location = NULL;
  redirs = 0;
}

xs__schema::xs__schema(struct soap *copy, const char *cwd, const char *loc)
{ soap = soap_copy(copy);
  soap->socket = SOAP_INVALID_SOCKET;
  soap->recvfd = 0;
  soap->sendfd = 1;
  /* no longer required, since we keep the host name:
  strcpy(soap->host, copy->host);
  */
  soap_default(soap);
  soap->fignore = warn_ignore;
  soap->encodingStyle = NULL;
  targetNamespace = NULL;
  version = NULL;
  updated = false;
  location = NULL;
  redirs = 0;
  read(cwd, loc);
}

xs__schema::~xs__schema()
{ }

int xs__schema::get(struct soap *soap)
{ return preprocess();
}

int xs__schema::preprocess()
{ // process include, but should check if not already included?
  // NOTE: includes are context sensitive (take context info), so keep including
  for (vector<xs__include>::iterator in = include.begin(); in != include.end(); ++in)
  { (*in).preprocess(*this); // read schema and recurse over <include>
    if ((*in).schemaPtr())
      insert(*(*in).schemaPtr());
  }
  for (vector<xs__redefine>::iterator re = redefine.begin(); re != redefine.end(); ++re)
  { (*re).preprocess(*this); // read schema and recurse over <redefine>
    if ((*re).schemaPtr())
      insert(*(*re).schemaPtr());
  }
  return SOAP_OK;
}

int xs__schema::insert(xs__schema& schema)
{ bool found;
  if (targetNamespace && schema.targetNamespace && strcmp(targetNamespace, schema.targetNamespace))
    fprintf(stderr, "Warning: attempt to include schema with unequal targetNamespace '%s' in schema '%s'\n", schema.targetNamespace, targetNamespace);
  if (elementFormDefault != schema.elementFormDefault)
    fprintf(stderr, "Warning: attempt to include schema with unequal elementFormDefault in schema '%s'\n", targetNamespace?targetNamespace:"");
  if (attributeFormDefault != schema.attributeFormDefault)
    fprintf(stderr, "Warning: attempt to include schema with unequal attributeFormDefault in schema '%s'\n", targetNamespace?targetNamespace:"");
  // insert imports, but only add imports with new namespace
  for (vector<xs__import>::const_iterator im = schema.import.begin(); im != schema.import.end(); ++im)
  { found = false;
    if ((*im).namespace_)
    { for (vector<xs__import>::const_iterator i = import.begin(); i != import.end(); ++i)
      { if ((*i).namespace_ && !strcmp((*im).namespace_, (*i).namespace_))
        { found = true;
          break;
        }
      }
    }
    if (!found)
      import.push_back(*im);
  }
  // insert attributes, but only add attributes with new name
  for (vector<xs__attribute>::const_iterator at = schema.attribute.begin(); at != schema.attribute.end(); ++at)
  { found = false;
    if ((*at).name)
    { for (vector<xs__attribute>::const_iterator a = attribute.begin(); a != attribute.end(); ++a)
      { if ((*a).name && !strcmp((*at).name, (*a).name))
        { found = true;
          if ((*at).type && (*a).type && strcmp((*at).type, (*a).type))
            fprintf(stderr, "Warning: attempt to redefine attribute '%s' with type '%s' in schema '%s'\n", (*at).name, (*at).type, targetNamespace?targetNamespace:"");
          break;
        }
      }
    }
    if (!found)
      attribute.push_back(*at);
  }
  // insert elements, but only add elements with new name
  for (vector<xs__element>::const_iterator el = schema.element.begin(); el != schema.element.end(); ++el)
  { found = false;
    if ((*el).name)
    { for (vector<xs__element>::const_iterator e = element.begin(); e != element.end(); ++e)
      { if ((*e).name && !strcmp((*el).name, (*e).name))
        { found = true;
          if ((*el).type && (*e).type && strcmp((*el).type, (*e).type))
            fprintf(stderr, "Warning: attempt to redefine element '%s' with type '%s' in schema '%s'\n", (*el).name, (*el).type, targetNamespace?targetNamespace:"");
          break;
        }
      }
    }
    if (!found)
      element.push_back(*el);
  }
  // insert groups, but only add groups with new name
  for (vector<xs__group>::const_iterator gp = schema.group.begin(); gp != schema.group.end(); ++gp)
  { found = false;
    if ((*gp).name)
    { for (vector<xs__group>::const_iterator g = group.begin(); g != group.end(); ++g)
      { if ((*g).name && !strcmp((*gp).name, (*g).name))
        { found = true;
          break;
        }
      }
    }
    if (!found)
      group.push_back(*gp);
  }
  // insert attributeGroups, but only add attributeGroups with new name
  for (vector<xs__attributeGroup>::const_iterator ag = schema.attributeGroup.begin(); ag != schema.attributeGroup.end(); ++ag)
  { found = false;
    if ((*ag).name)
    { for (vector<xs__attributeGroup>::const_iterator g = attributeGroup.begin(); g != attributeGroup.end(); ++g)
      { if ((*g).name && !strcmp((*ag).name, (*g).name))
        { found = true;
          break;
        }
      }
    }
    if (!found)
      attributeGroup.push_back(*ag);
  }
  // insert simpleTypes, but only add simpleTypes with new name
  for (vector<xs__simpleType>::const_iterator st = schema.simpleType.begin(); st != schema.simpleType.end(); ++st)
  { found = false;
    if ((*st).name)
    { for (vector<xs__simpleType>::const_iterator s = simpleType.begin(); s != simpleType.end(); ++s)
      { if ((*s).name && !strcmp((*st).name, (*s).name))
        { found = true;
          break;
        }
      }
    }
    if (!found)
      simpleType.push_back(*st);
  }
  // insert complexTypes, but only add complexTypes with new name
  for (vector<xs__complexType>::const_iterator ct = schema.complexType.begin(); ct != schema.complexType.end(); ++ct)
  { found = false;
    if ((*ct).name)
    { for (vector<xs__complexType>::const_iterator c = complexType.begin(); c != complexType.end(); ++c)
      { if ((*c).name && !strcmp((*ct).name, (*c).name))
        { found = true;
          break;
        }
      }
    }
    if (!found)
      complexType.push_back(*ct);
  }
  return SOAP_OK;
}

int xs__schema::traverse()
{ if (vflag)
    cerr << "Analyzing schema " << (targetNamespace?targetNamespace:"") << endl;
  if (updated)
    return SOAP_OK;
  updated = true;
  if (!targetNamespace)
  { if (vflag)
      fprintf(stderr, "Warning: Schema has no targetNamespace\n");
    targetNamespace = "";
  }
  // process import
  for (vector<xs__import>::iterator im = import.begin(); im != import.end(); ++im)
    (*im).traverse(*this);
  // process attributes
  for (vector<xs__attribute>::iterator at = attribute.begin(); at != attribute.end(); ++at)
    (*at).traverse(*this);
  // process elements, check conflicts with complexTypes
  for (vector<xs__element>::iterator el = element.begin(); el != element.end(); ++el)
  { (*el).traverse(*this);
    if ((*el).name)
    { for (vector<xs__simpleType>::iterator st = simpleType.begin(); st != simpleType.end(); ++st)
      { if ((*st).name && !strcmp((*el).name, (*st).name))
        { const char *token = qname_token((*el).type, targetNamespace);
          if (!token || strcmp((*st).name, token))
            fprintf(stderr, "Warning: top-level element name and simpleType name '%s' clash in schema '%s'\n", (*el).name, targetNamespace?targetNamespace:"");
        }
      }
      for (vector<xs__complexType>::iterator ct = complexType.begin(); ct != complexType.end(); ++ct)
      { if ((*ct).name && !strcmp((*el).name, (*ct).name))
        { const char *token = qname_token((*el).type, targetNamespace);
          if (!token || strcmp((*ct).name, token))
            fprintf(stderr, "Warning: top-level element name and complexType name '%s' clash in schema '%s'\n", (*el).name, targetNamespace?targetNamespace:"");
        }
      }
    }
  }
  // process simpleTypes, check conflicts with complexTypes
  for (vector<xs__simpleType>::iterator st = simpleType.begin(); st != simpleType.end(); ++st)
  { (*st).traverse(*this);
    if ((*st).name)
    { for (vector<xs__complexType>::iterator ct = complexType.begin(); ct != complexType.end(); ++ct)
        if ((*ct).name && !strcmp((*st).name, (*ct).name))
          fprintf(stderr, "Warning: top-level simpleType name and complexType name '%s' clash in schema '%s'\n", (*st).name, targetNamespace?targetNamespace:"");
    }
  }
  // process complexTypes
  for (vector<xs__complexType>::iterator ct = complexType.begin(); ct != complexType.end(); ++ct)
    (*ct).traverse(*this);
  // process groups
  for (vector<xs__group>::iterator gp = group.begin(); gp != group.end(); ++gp)
    (*gp).traverse(*this);
  // process attributeGroups
  for (vector<xs__attributeGroup>::iterator ag = attributeGroup.begin(); ag != attributeGroup.end(); ++ag)
    (*ag).traverse(*this);
  if (vflag)
    cerr << "End of schema " << (targetNamespace?targetNamespace:"") << endl;
  return SOAP_OK;
}

int xs__schema::read(const char *cwd, const char *loc)
{ if (vflag)
    fprintf(stderr, "Opening schema '%s' from '%s'\n", loc?loc:"", cwd?cwd:"");
  if (loc)
  { if (!strncmp(loc, "http://", 7) || !strncmp(loc, "https://", 8))
    { fprintf(stderr, "Connecting to '%s' to retrieve schema... ", loc);
      location = soap_strdup(soap, loc);
      if (soap_connect_command(soap, SOAP_GET, location, NULL))
      { fprintf(stderr, "connection failed\n");
        exit(1);
      }
      fprintf(stderr, "connected, receiving...\n");
    }
    else if (cwd && (!strncmp(cwd, "http://", 7) || !strncmp(cwd, "https://", 8)))
    { char *s;
      location = (char*)soap_malloc(soap, strlen(cwd) + strlen(loc) + 2);
      strcpy(location, cwd);
      s = strrchr(location, '/');
      if (s)
        *s = '\0';
      strcat(location, "/");
      strcat(location, loc);
      fprintf(stderr, "Connecting to '%s' to retrieve relative '%s' schema... ", location, loc);
      if (soap_connect_command(soap, SOAP_GET, location, NULL))
      { fprintf(stderr, "connection failed\n");
        exit(1);
      }
      fprintf(stderr, "connected, receiving...\n");
    }
    else
    { soap->recvfd = open(loc, O_RDONLY, 0);
      if (soap->recvfd < 0)
      { if (cwd)
        { char *s;
          location = (char*)soap_malloc(soap, strlen(cwd) + strlen(loc) + 2);
          strcpy(location, cwd);
          s = strrchr(location, '/');
          if (s)
            *s = '\0';
          strcat(location, "/");
          strcat(location, loc);
          soap->recvfd = open(location, O_RDONLY, 0);
	}
        if (soap->recvfd < 0 && import_path)
        { location = (char*)soap_malloc(soap, strlen(import_path) + strlen(loc) + 2);
          strcpy(location, import_path);
          strcat(location, "/");
          strcat(location, loc);
          soap->recvfd = open(location, O_RDONLY, 0);
        }
        if (soap->recvfd < 0)
        { fprintf(stderr, "Cannot open '%s' to retrieve schema\n", loc);
          exit(1);
        }
      }
      else
        location = soap_strdup(soap, loc);
      fprintf(stderr, "Reading schema file '%s'\n", location);
    }
  }
  if (!soap_begin_recv(soap))
    this->soap_in(soap, "xs:schema", NULL);
  if ((soap->error >= 301 && soap->error <= 303) || soap->error == 307) // HTTP redirect, socket was closed
  { int r = SOAP_ERR;
    fprintf(stderr, "Redirected to '%s'\n", soap->endpoint);
    if (redirs++ < 10)
      r = read(cwd, soap->endpoint);
    else
      fprintf(stderr, "Max redirects exceeded\n");
    redirs--;
    return r;
  }
  if (soap->error)
  { fprintf(stderr, "An error occurred while parsing schema from '%s'\n", loc?loc:"");
    soap_print_fault(soap, stderr);
    soap_print_fault_location(soap, stderr);
    exit(1);
  }
  soap_end_recv(soap);
  if (soap->recvfd >= 0)
  { close(soap->recvfd);
    soap->recvfd = -1;
  }
  else
    soap_closesock(soap);
  return SOAP_OK;
}

void xs__schema::sourceLocation(const char *loc)
{ location = soap_strdup(soap, loc);
}

const char *xs__schema::sourceLocation()
{ return location;
}

int xs__schema::error()
{ return soap->error;
}

void xs__schema::print_fault()
{ soap_print_fault(soap, stderr);
  soap_print_fault_location(soap, stderr);
}

void xs__schema::builtinType(const char *type)
{ builtinTypeSet.insert(type);
}

void xs__schema::builtinElement(const char *element)
{ builtinElementSet.insert(element);
}

void xs__schema::builtinAttribute(const char *attribute)
{ builtinAttributeSet.insert(attribute);
}

const SetOfString& xs__schema::builtinTypes() const
{ return builtinTypeSet;
}

const SetOfString& xs__schema::builtinElements() const
{ return builtinElementSet;
}

const SetOfString& xs__schema::builtinAttributes() const
{ return builtinAttributeSet;
}

xs__include::xs__include()
{ schemaLocation = NULL;
  schemaRef = NULL;
}

int xs__include::preprocess(xs__schema &schema)
{ if (vflag)
    cerr << "Preprocessing schema include " << (schemaLocation?schemaLocation:"") << endl;
  if (!schemaRef)
    if (schemaLocation)
      schemaRef = new xs__schema(schema.soap, schema.sourceLocation(), schemaLocation);
  return SOAP_OK;
}

int xs__include::traverse(xs__schema &schema)
{ return SOAP_OK;
}

void xs__include::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema *xs__include::schemaPtr() const
{ return schemaRef;
}

xs__redefine::xs__redefine()
{ schemaLocation = NULL;
  schemaRef = NULL;
}

int xs__redefine::preprocess(xs__schema &schema)
{ if (vflag)
    cerr << "Preprocessing schema redefine " << (schemaLocation?schemaLocation:"") << endl;
  if (!schemaRef)
  { if (schemaLocation)
    { schemaRef = new xs__schema(schema.soap, schema.sourceLocation(), schemaLocation);
      for (vector<xs__group>::iterator gp = schemaRef->group.begin(); gp != schemaRef->group.end(); ++gp)
      { if ((*gp).name)
        { for (vector<xs__group>::const_iterator g = group.begin(); g != group.end(); ++g)
          { if ((*g).name && !strcmp((*gp).name, (*g).name))
            { *gp = *g;
              break;
            }
          }
        }
      }
      for (vector<xs__attributeGroup>::iterator ag = schemaRef->attributeGroup.begin(); ag != schemaRef->attributeGroup.end(); ++ag)
      { if ((*ag).name)
        { for (vector<xs__attributeGroup>::const_iterator g = attributeGroup.begin(); g != attributeGroup.end(); ++g)
          { if ((*g).name && !strcmp((*ag).name, (*g).name))
            { *ag = *g;
              break;
            }
          }
        }
      }
      for (vector<xs__simpleType>::iterator st = schemaRef->simpleType.begin(); st != schemaRef->simpleType.end(); ++st)
      { if ((*st).name)
        { for (vector<xs__simpleType>::const_iterator s = simpleType.begin(); s != simpleType.end(); ++s)
          { if ((*s).name && !strcmp((*st).name, (*s).name))
            { *st = *s;
              break;
            }
          }
        }
      }
      for (vector<xs__complexType>::iterator ct = schemaRef->complexType.begin(); ct != schemaRef->complexType.end(); ++ct)
      { if ((*ct).name)
        { for (vector<xs__complexType>::const_iterator c = complexType.begin(); c != complexType.end(); ++c)
          { if ((*c).name && !strcmp((*ct).name, (*c).name))
            { *ct = *c;
              break;
            }
          }
        }
      }
    }
  }
  return SOAP_OK;
}

int xs__redefine::traverse(xs__schema &schema)
{ return SOAP_OK;
}

void xs__redefine::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema *xs__redefine::schemaPtr() const
{ return schemaRef;
}

xs__import::xs__import()
{ namespace_ = NULL;
  schemaLocation = NULL;
  schemaRef = NULL;
}

int xs__import::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema import " << (namespace_?namespace_:"") << endl;
  if (!schemaRef)
  { bool found = false;
    if (namespace_)
    { for (SetOfString::const_iterator i = exturis.begin(); i != exturis.end(); ++i)
      { if (!soap_tag_cmp(namespace_, *i))
        { found = true;
          break;
        }
      }
    }
    else
      fprintf(stderr, "Warning: no namespace in <import>\n");
    if (!found && !iflag) // don't import any of the schemas in the .nsmap table (or when -i option is used)
    { const char *s = schemaLocation;
      if (!s)
        s = namespace_;
      schemaRef = new xs__schema(schema.soap, schema.sourceLocation(), s);
      if (schemaPtr())
      { if (!schemaPtr()->targetNamespace || !*schemaPtr()->targetNamespace)
          schemaPtr()->targetNamespace = namespace_;
        else if (!namespace_ || strcmp(schemaPtr()->targetNamespace, namespace_))
          fprintf(stderr, "Warning: schema import '%s' with schema targetNamespace '%s' mismatch\n", namespace_?namespace_:"", schemaPtr()->targetNamespace);
        schemaPtr()->traverse();
      }
    }
  }
  return SOAP_OK;
}

void xs__import::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema *xs__import::schemaPtr() const
{ return schemaRef;
}

xs__attribute::xs__attribute()
{ schemaRef = NULL;
  attributeRef = NULL;
  simpleTypeRef = NULL;
}

int xs__attribute::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema attribute " << (name?name:"") << endl;
  schemaRef = &schema;
  const char *token = qname_token(ref, schema.targetNamespace);
  attributeRef = NULL;
  if (token)
  { for (vector<xs__attribute>::iterator i = schema.attribute.begin(); i != schema.attribute.end(); ++i)
      if (!strcmp((*i).name, token))
      { attributeRef = &(*i);
        if (vflag)
          cerr << "Found attribute " << (name?name:"") << " ref " << (token?token:"") << endl;
        break;
      }
  }
  else
  { for (vector<xs__import>::iterator i = schema.import.begin(); i != schema.import.end(); ++i)
    { xs__schema *s = (*i).schemaPtr();
      if (s)
      { token = qname_token(ref, s->targetNamespace);
        if (token)
        { for (vector<xs__attribute>::iterator j = s->attribute.begin(); j != s->attribute.end(); ++j)
            if (!strcmp((*j).name, token))
            { attributeRef = &(*j);
              if (vflag)
                cerr << "Found attribute " << (name?name:"") << " ref " << (token?token:"") << endl;
              break;
            }
          break;
        }
      }
    }
  }
  if (simpleType)
  { simpleType->traverse(schema);
    simpleTypeRef = simpleType;
  }
  else
  { token = qname_token(type, schema.targetNamespace);
    simpleTypeRef = NULL;
    if (token)
    { for (vector<xs__simpleType>::iterator i = schema.simpleType.begin(); i != schema.simpleType.end(); ++i)
        if (!strcmp((*i).name, token))
        { simpleTypeRef = &(*i);
          if (vflag)
            cerr << "Found attribute " << (name?name:"") << " type " << (token?token:"") << endl;
          break;
        }
    }
    else
    { for (vector<xs__import>::iterator i = schema.import.begin(); i != schema.import.end(); ++i)
      { xs__schema *s = (*i).schemaPtr();
        if (s)
        { token = qname_token(type, s->targetNamespace);
          if (token)
          { for (vector<xs__simpleType>::iterator j = s->simpleType.begin(); j != s->simpleType.end(); ++j)
              if (!strcmp((*j).name, token))
              { simpleTypeRef = &(*j);
                if (vflag)
                  cerr << "Found attribute " << (name?name:"") << " type " << (token?token:"") << endl;
                break;
              }
            break;
          }
        }
      }
    }
  }
  if (!attributeRef && !simpleTypeRef)
  { if (ref)
    { if (is_builtin_qname(ref))
        schema.builtinAttribute(ref);
      else
        cerr << "Warning: could not find attribute '" << (name?name:"") << "' ref '" << ref << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
    }
    else if (type)
    { if (is_builtin_qname(type))
        schema.builtinType(type);
      else
        cerr << "Warning: could not find attribute '" << (name?name:"") << "' type '" << type << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
    }
  }
  return SOAP_OK;
}

void xs__attribute::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema* xs__attribute::schemaPtr() const
{ return schemaRef;
}

void xs__attribute::attributePtr(xs__attribute *attribute)
{ attributeRef = attribute;
}

void xs__attribute::simpleTypePtr(xs__simpleType *simpleType)
{ simpleTypeRef = simpleType;
}

xs__attribute *xs__attribute::attributePtr() const
{ return attributeRef;
}

xs__simpleType *xs__attribute::simpleTypePtr() const
{ return simpleTypeRef;
}

xs__element::xs__element()
{ schemaRef = NULL;
  elementRef = NULL;
  simpleTypeRef = NULL;
  complexTypeRef = NULL;
}

int xs__element::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema element " << (name?name:"") << endl;
  schemaRef = &schema;
  const char *token = qname_token(ref, schema.targetNamespace);
  elementRef = NULL;
  if (token)
  { for (vector<xs__element>::iterator i = schema.element.begin(); i != schema.element.end(); ++i)
      if (!strcmp((*i).name, token))
      { elementRef = &(*i);
        if (vflag)
          cerr << "Found element " << (name?name:"") << " ref " << (token?token:"") << endl;
        break;
      }
  }
  else
  { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
    { xs__schema *s = (*i).schemaPtr();
      if (s)
      { token = qname_token(ref, s->targetNamespace);
        if (token)
        { for (vector<xs__element>::iterator j = s->element.begin(); j != s->element.end(); ++j)
          { if (!strcmp((*j).name, token))
            { elementRef = &(*j);
              if (vflag)
                cerr << "Found element " << (name?name:"") << " ref " << (token?token:"") << endl;
              break;
            }
	  }
          break;
        }
      }
    }
  }
  if (simpleType)
  { simpleType->traverse(schema);
    simpleTypeRef = simpleType;
  }
  else
  { token = qname_token(type, schema.targetNamespace);
    simpleTypeRef = NULL;
    if (token)
    { for (vector<xs__simpleType>::iterator i = schema.simpleType.begin(); i != schema.simpleType.end(); ++i)
        if (!strcmp((*i).name, token))
        { simpleTypeRef = &(*i);
          if (vflag)
            cerr << "Found element " << (name?name:"") << " simpleType " << (token?token:"") << endl;
          break;
        }
    }
    else
    { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
      { xs__schema *s = (*i).schemaPtr();
        if (s)
        { token = qname_token(type, s->targetNamespace);
          if (token)
          { for (vector<xs__simpleType>::iterator j = s->simpleType.begin(); j != s->simpleType.end(); ++j)
            { if (!strcmp((*j).name, token))
              { simpleTypeRef = &(*j);
                if (vflag)
                  cerr << "Found element " << (name?name:"") << " simpleType " << (token?token:"") << endl;
                break;
              }
	    }
            break;
          }
        }
      }
    }
  }
  if (complexType)
  { complexType->traverse(schema);
    complexTypeRef = complexType;
  }
  else
  { token = qname_token(type, schema.targetNamespace);
    complexTypeRef = NULL;
    if (token)
    { for (vector<xs__complexType>::iterator i = schema.complexType.begin(); i != schema.complexType.end(); ++i)
        if (!strcmp((*i).name, token))
        { complexTypeRef = &(*i);
          if (vflag)
            cerr << "Found element " << (name?name:"") << " complexType " << (token?token:"") << endl;
          break;
        }
    }
    else
    { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
      { xs__schema *s = (*i).schemaPtr();
        if (s)
        { token = qname_token(type, s->targetNamespace);
          if (token)
          { for (vector<xs__complexType>::iterator j = s->complexType.begin(); j != s->complexType.end(); ++j)
            { if (!strcmp((*j).name, token))
              { complexTypeRef = &(*j);
                if (vflag)
                  cerr << "Found element " << (name?name:"") << " complexType " << (token?token:"") << endl;
                break;
              }
	    }
            break;
          }
        }
      }
    }
  }
  token = qname_token(substitutionGroup, schema.targetNamespace);
  if (token)
  { for (vector<xs__element>::iterator i = schema.element.begin(); i != schema.element.end(); ++i)
      if (!strcmp((*i).name, token))
      { (*i).substitutions.push_back(this);
        if (vflag)
          cerr << "Found substitutionGroup element " << (name?name:"") << " for abstract element " << (token?token:"") << endl;
        break;
      }
  }
  else
  { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
    { xs__schema *s = (*i).schemaPtr();
      if (s)
      { token = qname_token(substitutionGroup, s->targetNamespace);
        if (token)
        { for (vector<xs__element>::iterator j = s->element.begin(); j != s->element.end(); ++j)
          { if (!strcmp((*j).name, token))
            { (*j).substitutions.push_back(this);
              if (vflag)
                cerr << "Found substitutionGroup element " << (name?name:"") << " for abstract element " << (token?token:"") << endl;
              break;
            }
	  }
          break;
        }
      }
    }
  }
  if (!elementRef && !simpleTypeRef && !complexTypeRef)
  { if (ref)
    { if (is_builtin_qname(ref))
        schema.builtinElement(ref);
      else
        cerr << "Warning: could not find element '" << (name?name:"") << "' ref '" << ref << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
    }
    else if (type)
    { if (is_builtin_qname(type))
        schema.builtinType(type);
      else
        cerr << "Warning: could not find element '" << (name?name:"") << "' type '" << type << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
    }
  }
  return SOAP_OK;
}

void xs__element::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema* xs__element::schemaPtr() const
{ return schemaRef;
}

void xs__element::elementPtr(xs__element *element)
{ elementRef = element;
}

void xs__element::simpleTypePtr(xs__simpleType *simpleType)
{ simpleTypeRef = simpleType;
}

void xs__element::complexTypePtr(xs__complexType *complexType)
{ complexTypeRef = complexType;
}

xs__element *xs__element::elementPtr() const
{ return elementRef;
}

const std::vector<xs__element*>* xs__element::substitutionsPtr() const
{ return &substitutions;
}

xs__simpleType *xs__element::simpleTypePtr() const
{ return simpleTypeRef;
}

xs__complexType *xs__element::complexTypePtr() const
{ return complexTypeRef;
}

xs__simpleType::xs__simpleType()
{ level = 0;
}

int xs__simpleType::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema simpleType " << (name?name:"") << endl;
  schemaRef = &schema;
  if (list)
    list->traverse(schema);
  else if (restriction)
    restriction->traverse(schema);
  else if (union_)
    union_->traverse(schema);
  return SOAP_OK;
}

void xs__simpleType::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema *xs__simpleType::schemaPtr() const
{ return schemaRef;
}

int xs__simpleType::baseLevel()
{ if (!level)
  { if (restriction)
    { level = -1;
      if (restriction->simpleTypePtr())
        level = restriction->simpleTypePtr()->baseLevel() + 1;
      else
        level = 2;
    }
    else if (list && list->restriction)
    { level = -1;
      if (list->restriction->simpleTypePtr())
        level = list->restriction->simpleTypePtr()->baseLevel() + 1;
      else
        level = 2;
    }
    else
      level = 1;
  }
  else if (level < 0)
  { cerr << "Cyclic restriction/extension base dependency" << endl;
  }
  return level;
}

xs__complexType::xs__complexType()
{ level = 0;
}

int xs__complexType::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema complexType " << (name?name:"") << endl;
  schemaRef = &schema;
  if (simpleContent)
    simpleContent->traverse(schema);
  else if (complexContent)
    complexContent->traverse(schema);
  else if (all)
    all->traverse(schema);
  else if (choice)
    choice->traverse(schema);
  else if (sequence)
    sequence->traverse(schema);
  else if (any)
    any->traverse(schema);
  for (vector<xs__attribute>::iterator at = attribute.begin(); at != attribute.end(); ++at)
    (*at).traverse(schema);
  for (vector<xs__attributeGroup>::iterator ag = attributeGroup.begin(); ag != attributeGroup.end(); ++ag)
    (*ag).traverse(schema);
  return SOAP_OK;
}

void xs__complexType::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema *xs__complexType::schemaPtr() const
{ return schemaRef;
}

int xs__complexType::baseLevel()
{ if (!level)
  { if (simpleContent)
    { if (simpleContent->restriction)
      { level = -1;
        if (simpleContent->restriction->simpleTypePtr())
          level = simpleContent->restriction->simpleTypePtr()->baseLevel() + 1;
        else if (simpleContent->restriction->complexTypePtr())
          level = simpleContent->restriction->complexTypePtr()->baseLevel() + 1;
        else
          level = 2;
      }
      else if (simpleContent->extension)
      { level = -1;
        if (simpleContent->extension->simpleTypePtr())
          level = simpleContent->extension->simpleTypePtr()->baseLevel() + 1;
        else if (simpleContent->extension->complexTypePtr())
          level = simpleContent->extension->complexTypePtr()->baseLevel() + 1;
        else
          level = 2;
      }
    }
    else if (complexContent)
    { if (complexContent->restriction)
      { level = -1;
        if (complexContent->restriction->simpleTypePtr())
          level = complexContent->restriction->simpleTypePtr()->baseLevel() + 1;
        else if (complexContent->restriction->complexTypePtr())
          level = complexContent->restriction->complexTypePtr()->baseLevel() + 1;
        else
          level = 2;
      }
      else if (complexContent->extension)
      { level = -1;
        if (complexContent->extension->simpleTypePtr())
          level = complexContent->extension->simpleTypePtr()->baseLevel() + 1;
        else if (complexContent->extension->complexTypePtr())
          level = complexContent->extension->complexTypePtr()->baseLevel() + 1;
        else
          level = 2;
      }
    }
    else
      level = 1;
  }
  else if (level < 0)
  { cerr << "Cyclic restriction/extension base dependency" << endl;
  }
  return level;
}

int xs__simpleContent::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema simpleContent" << endl;
  if (extension)
    extension->traverse(schema);
  else if (restriction)
    restriction->traverse(schema);
  return SOAP_OK;
}

int xs__complexContent::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema complexContent" << endl;
  if (extension)
    extension->traverse(schema);
  else if (restriction)
    restriction->traverse(schema);
  return SOAP_OK;
}

xs__extension::xs__extension()
{ simpleTypeRef = NULL;
  complexTypeRef = NULL;
}

int xs__extension::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema extension " << (base?base:"") << endl;
  if (group)
    group->traverse(schema);
  else if (all)
    all->traverse(schema);
  else if (choice)
    choice->traverse(schema);
  else if (sequence)
    sequence->traverse(schema);
  for (vector<xs__attribute>::iterator at = attribute.begin(); at != attribute.end(); ++at)
    (*at).traverse(schema);
  for (vector<xs__attributeGroup>::iterator ag = attributeGroup.begin(); ag != attributeGroup.end(); ++ag)
    (*ag).traverse(schema);
  const char *token = qname_token(base, schema.targetNamespace);
  simpleTypeRef = NULL;
  if (token)
  { for (vector<xs__simpleType>::iterator i = schema.simpleType.begin(); i != schema.simpleType.end(); ++i)
      if (!strcmp((*i).name, token))
      { simpleTypeRef = &(*i);
        if (vflag)
          cerr << "Found extension base type " << (token?token:"") << endl;
        break;
      }
  }
  else
  { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
    { xs__schema *s = (*i).schemaPtr();
      if (s)
      { token = qname_token(base, s->targetNamespace);
        if (token)
        { for (vector<xs__simpleType>::iterator j = s->simpleType.begin(); j != s->simpleType.end(); ++j)
            if (!strcmp((*j).name, token))
            { simpleTypeRef = &(*j);
              if (vflag)
                cerr << "Found extension base type " << (token?token:"") << endl;
              break;
            }
          break;
        }
      }
    }
  }
  token = qname_token(base, schema.targetNamespace);
  complexTypeRef = NULL;
  if (token)
  { for (vector<xs__complexType>::iterator i = schema.complexType.begin(); i != schema.complexType.end(); ++i)
      if (!strcmp((*i).name, token))
      { complexTypeRef = &(*i);
        if (vflag)
          cerr << "Found extension base type " << (token?token:"") << endl;
        break;
      }
  }
  else
  { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
    { xs__schema *s = (*i).schemaPtr();
      if (s)
      { token = qname_token(base, s->targetNamespace);
        if (token)
        { for (vector<xs__complexType>::iterator j = s->complexType.begin(); j != s->complexType.end(); ++j)
            if (!strcmp((*j).name, token))
            { complexTypeRef = &(*j);
              if (vflag)
                cerr << "Found extension base type " << (token?token:"") << endl;
              break;
            }
          break;
        }
      }
    }
  }
  if (!simpleTypeRef && !complexTypeRef)
  { if (base)
    { if (is_builtin_qname(base))
        schema.builtinType(base);
      else
        cerr << "Warning: could not find extension base type '" << base << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
    }
    else
      cerr << "Extension has no base" << endl;
  }
  return SOAP_OK;
}

void xs__extension::simpleTypePtr(xs__simpleType *simpleType)
{ simpleTypeRef = simpleType;
}

void xs__extension::complexTypePtr(xs__complexType *complexType)
{ complexTypeRef = complexType;
}

xs__simpleType *xs__extension::simpleTypePtr() const
{ return simpleTypeRef;
}

xs__complexType *xs__extension::complexTypePtr() const
{ return complexTypeRef;
}

xs__restriction::xs__restriction()
{ simpleTypeRef = NULL;
  complexTypeRef = NULL;
}

int xs__restriction::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema restriction " << (base?base:"") << endl;
  if (group)
    group->traverse(schema);
  else if (all)
    all->traverse(schema);
  else if (choice)
    choice->traverse(schema);
  else if (sequence)
    sequence->traverse(schema);
  else
  { for (vector<xs__enumeration>::iterator en = enumeration.begin(); en != enumeration.end(); ++en)
      (*en).traverse(schema);
    for (vector<xs__pattern>::iterator pn = pattern.begin(); pn != pattern.end(); ++pn)
      (*pn).traverse(schema);
  }
  for (vector<xs__attribute>::iterator at = attribute.begin(); at != attribute.end(); ++at)
    (*at).traverse(schema);
  const char *token = qname_token(base, schema.targetNamespace);
  simpleTypeRef = NULL;
  if (token)
  { for (vector<xs__simpleType>::iterator i = schema.simpleType.begin(); i != schema.simpleType.end(); ++i)
      if (!strcmp((*i).name, token))
      { simpleTypeRef = &(*i);
        if (vflag)
          cerr << "Found restriction base type " << (token?token:"") << endl;
        break;
      }
  }
  else
  { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
    { xs__schema *s = (*i).schemaPtr();
      if (s)
      { token = qname_token(base, s->targetNamespace);
        if (token)
        { for (vector<xs__simpleType>::iterator j = s->simpleType.begin(); j != s->simpleType.end(); ++j)
            if (!strcmp((*j).name, token))
            { simpleTypeRef = &(*j);
              if (vflag)
                cerr << "Found restriction base type " << (token?token:"") << endl;
              break;
            }
          break;
        }
      }
    }
  }
  token = qname_token(base, schema.targetNamespace);
  complexTypeRef = NULL;
  if (token)
  { for (vector<xs__complexType>::iterator i = schema.complexType.begin(); i != schema.complexType.end(); ++i)
      if (!strcmp((*i).name, token))
      { complexTypeRef = &(*i);
        if (vflag)
          cerr << "Found restriction base type " << (token?token:"") << endl;
        break;
      }
  }
  else
  { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
    { xs__schema *s = (*i).schemaPtr();
      if (s)
      { token = qname_token(base, s->targetNamespace);
        if (token)
        { for (vector<xs__complexType>::iterator j = s->complexType.begin(); j != s->complexType.end(); ++j)
            if (!strcmp((*j).name, token))
            { complexTypeRef = &(*j);
              if (vflag)
                cerr << "Found restriction base type " << (token?token:"") << endl;
              break;
            }
          break;
        }
      }
    }
  }
  if (!simpleTypeRef && !complexTypeRef)
  { if (base)
    { if (is_builtin_qname(base))
        schema.builtinType(base);
      else
        cerr << "Warning: could not find restriction base type '" << base << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
    }
    else
      cerr << "Restriction has no base" << endl;
  }
  return SOAP_OK;
}

void xs__restriction::simpleTypePtr(xs__simpleType *simpleType)
{ simpleTypeRef = simpleType;
}

void xs__restriction::complexTypePtr(xs__complexType *complexType)
{ complexTypeRef = complexType;
}

xs__simpleType *xs__restriction::simpleTypePtr() const
{ return simpleTypeRef;
}

xs__complexType *xs__restriction::complexTypePtr() const
{ return complexTypeRef;
}

xs__list::xs__list()
{ itemTypeRef = NULL;
}

int xs__list::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema list" << endl;
  if (restriction)
    restriction->traverse(schema);
  for (vector<xs__simpleType>::iterator i = simpleType.begin(); i != simpleType.end(); ++i)
    (*i).traverse(schema);
  itemTypeRef = NULL;
  const char *token = qname_token(itemType, schema.targetNamespace);
  if (token)
  { for (vector<xs__simpleType>::iterator i = schema.simpleType.begin(); i != schema.simpleType.end(); ++i)
      if (!strcmp((*i).name, token))
      { itemTypeRef = &(*i);
        if (vflag)
          cerr << "Found list itemType " << (token?token:"") << endl;
        break;
      }
  }
  else
  { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
    { xs__schema *s = (*i).schemaPtr();
      if (s)
      { token = qname_token(itemType, s->targetNamespace);
        if (token)
        { for (vector<xs__simpleType>::iterator j = s->simpleType.begin(); j != s->simpleType.end(); ++j)
            if (!strcmp((*j).name, token))
            { itemTypeRef = &(*j);
              if (vflag)
                cerr << "Found list itemType " << (token?token:"") << endl;
              break;
            }
          break;
        }
      }
    }
  }
  if (itemType && !itemTypeRef)
  { if (is_builtin_qname(itemType))
      schema.builtinType(itemType);
    else
      cerr << "Warning: could not find list itemType '" << itemType << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
  }
  return SOAP_OK;
}

void xs__list::itemTypePtr(xs__simpleType *simpleType)
{ itemTypeRef = simpleType;
}

xs__simpleType *xs__list::itemTypePtr() const
{ return itemTypeRef;
}

int xs__union::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema union" << endl;
  for (vector<xs__simpleType>::iterator i = simpleType.begin(); i != simpleType.end(); ++i)
    (*i).traverse(schema);
  return SOAP_OK;
}

int xs__all::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema all" << endl;
  for (vector<xs__element>::iterator i = element.begin(); i != element.end(); ++i)
    (*i).traverse(schema);
  return SOAP_OK;
}

xs__choice::xs__choice()
{ schemaRef = NULL;
}

int xs__choice::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema choice" << endl;
  schemaRef = &schema;
  for (vector<xs__element>::iterator el = element.begin(); el != element.end(); ++el)
    (*el).traverse(schema);
  for (vector<xs__group>::iterator gp = group.begin(); gp != group.end(); ++gp)
    (*gp).traverse(schema);
  for (vector<xs__sequence*>::iterator sq = sequence.begin(); sq != sequence.end(); ++sq)
    (*sq)->traverse(schema);
  for (vector<xs__any>::iterator an = any.begin(); an != any.end(); ++an)
    (*an).traverse(schema);
  return SOAP_OK;
}

void xs__choice::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema *xs__choice::schemaPtr() const
{ return schemaRef;
}

int xs__sequence::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema sequence" << endl;
  for (vector<xs__element>::iterator el = element.begin(); el != element.end(); ++el)
    (*el).traverse(schema);
  for (vector<xs__group>::iterator gp = group.begin(); gp != group.end(); ++gp)
    (*gp).traverse(schema);
  for (vector<xs__choice>::iterator ch = choice.begin(); ch != choice.end(); ++ch)
    (*ch).traverse(schema);
  for (vector<xs__sequence*>::iterator sq = sequence.begin(); sq != sequence.end(); ++sq)
    (*sq)->traverse(schema);
  for (vector<xs__any>::iterator an = any.begin(); an != any.end(); ++an)
    (*an).traverse(schema);
  return SOAP_OK;
}

xs__attributeGroup::xs__attributeGroup()
{ schemaRef = NULL;
  attributeGroupRef = NULL;
}

int xs__attributeGroup::traverse(xs__schema& schema)
{ if (vflag)
    cerr << "attributeGroup" << endl;
  schemaRef = &schema;
  for (vector<xs__attribute>::iterator at = attribute.begin(); at != attribute.end(); ++at)
    (*at).traverse(schema);
  for (vector<xs__attributeGroup>::iterator ag = attributeGroup.begin(); ag != attributeGroup.end(); ++ag)
    (*ag).traverse(schema);
  attributeGroupRef = NULL;
  if (ref)
  { const char *token = qname_token(ref, schema.targetNamespace);
    if (token)
    { for (vector<xs__attributeGroup>::iterator i = schema.attributeGroup.begin(); i != schema.attributeGroup.end(); ++i)
        if (!strcmp((*i).name, token))
        { attributeGroupRef = &(*i);
          if (vflag)
              cerr << "Found attributeGroup " << (name?name:"") << " ref " << (token?token:"") << endl;
          break;
        }
    }
    else
    { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
      { xs__schema *s = (*i).schemaPtr();
        if (s)
        { token = qname_token(ref, s->targetNamespace);
          if (token)
          { for (vector<xs__attributeGroup>::iterator j = s->attributeGroup.begin(); j != s->attributeGroup.end(); ++j)
              if (!strcmp((*j).name, token))
              { attributeGroupRef = &(*j);
                if (vflag)
                    cerr << "Found attribute Group " << (name?name:"") << " ref " << (token?token:"") << endl;
                break;
              }
            break;
          }
        }
      }
    }
    if (!attributeGroupRef)
      cerr << "Warning: could not find attributeGroup '" << (name?name:"") << "' ref '" << (ref?ref:"") << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
  }
  return SOAP_OK;
}

void xs__attributeGroup::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

void xs__attributeGroup::attributeGroupPtr(xs__attributeGroup *attributeGroup)
{ attributeGroupRef = attributeGroup;
}

xs__schema *xs__attributeGroup::schemaPtr() const
{ return schemaRef;
}

xs__attributeGroup *xs__attributeGroup::attributeGroupPtr() const
{ return attributeGroupRef;
}

int xs__any::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema any" << endl;
  for (vector<xs__element>::iterator i = element.begin(); i != element.end(); ++i)
    (*i).traverse(schema);
  return SOAP_OK;
}

xs__group::xs__group()
{ schemaRef = NULL;
  groupRef = NULL;
}

int xs__group::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema group" << endl;
  schemaRef = &schema;
  if (all)
    all->traverse(schema);
  else if (choice)
    choice->traverse(schema);
  else if (sequence)
    sequence->traverse(schema);
  groupRef = NULL;
  if (ref)
  { const char *token = qname_token(ref, schema.targetNamespace);
    if (token)
    { for (vector<xs__group>::iterator i = schema.group.begin(); i != schema.group.end(); ++i)
        if (!strcmp((*i).name, token))
        { groupRef = &(*i);
          if (vflag)
              cerr << "Found group " << (name?name:"") << " ref " << (token?token:"") << endl;
          break;
        }
    }
    else
    { for (vector<xs__import>::const_iterator i = schema.import.begin(); i != schema.import.end(); ++i)
      { xs__schema *s = (*i).schemaPtr();
        if (s)
        { token = qname_token(ref, s->targetNamespace);
          if (token)
          { for (vector<xs__group>::iterator j = s->group.begin(); j != s->group.end(); ++j)
              if (!strcmp((*j).name, token))
              { groupRef = &(*j);
                if (vflag)
                    cerr << "Found group " << (name?name:"") << " ref " << (token?token:"") << endl;
                break;
              }
            break;
          }
        }
      }
    }
    if (!groupRef)
      cerr << "Warning: could not find group '" << (name?name:"") << "' ref '" << (ref?ref:"") << "' in schema " << (schema.targetNamespace?schema.targetNamespace:"") << endl;
  }
  return SOAP_OK;
}

void xs__group::schemaPtr(xs__schema *schema)
{ schemaRef = schema;
}

xs__schema* xs__group::schemaPtr() const
{ return schemaRef;
}

void xs__group::groupPtr(xs__group *group)
{ groupRef = group;
}

xs__group* xs__group::groupPtr() const
{ return groupRef;
}

int xs__enumeration::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema enumeration" << endl;
  return SOAP_OK;
}

int xs__pattern::traverse(xs__schema &schema)
{ if (vflag)
    cerr << "Analyzing schema pattern" << endl;
  return SOAP_OK;
}

////////////////////////////////////////////////////////////////////////////////
//
//	I/O
//
////////////////////////////////////////////////////////////////////////////////

ostream &operator<<(ostream &o, const xs__schema &e)
{ if (!e.soap)
  { struct soap soap;
    soap_init2(&soap, SOAP_IO_DEFAULT, SOAP_XML_TREE | SOAP_C_UTFSTRING);
#ifdef WITH_NONAMESPACES
    soap_set_namespaces(&soap, namespaces);
#endif
    e.soap_serialize(&soap);
    soap_begin_send(&soap);
    e.soap_out(&soap, "xs:schema", 0, NULL);
    soap_end_send(&soap);
    soap_end(&soap);
    soap_done(&soap);
  }
  else
  { ostream *os = e.soap->os;
    e.soap->os = &o;
    e.soap_serialize(e.soap);
    soap_begin_send(e.soap);
    e.soap_out(e.soap, "xs:schema", 0, NULL);
    soap_end_send(e.soap);
    e.soap->os = os;
  }
  return o;
}

istream &operator>>(istream &i, xs__schema &e)
{ if (!e.soap)
    e.soap = soap_new();
#ifdef WITH_NONAMESPACES
  soap_set_namespaces(e.soap, namespaces);
#endif
  istream *is = e.soap->is;
  e.soap->is = &i;
  if (soap_begin_recv(e.soap)
   || !e.soap_in(e.soap, "xs:schema", NULL)
   || soap_end_recv(e.soap))
  { // handle error? Note: e.soap->error is set and app should check
  }
  e.soap->is = is;
  return i;
}