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  • Committer: Monty Taylor
  • Date: 2008-10-16 09:12:23 UTC
  • mto: (511.1.6 codestyle)
  • mto: This revision was merged to the branch mainline in revision 521.
  • Revision ID: monty@inaugust.com-20081016091223-17ngih0qu9vssjs3
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drizzled/function/str/str_conv.cc
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008 Sun Microsystems
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; version 2 of the License.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include "config.h"
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#include <drizzled/function/str/str_conv.h>
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namespace drizzled
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{
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String *Item_str_conv::val_str(String *str)
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{
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  assert(fixed == 1);
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  String *res;
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  if (!(res=args[0]->val_str(str)))
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  {
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    null_value=1;
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    return 0;
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  }
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  null_value=0;
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  if (multiply == 1)
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  {
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    uint32_t len;
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    res= copy_if_not_alloced(str,res,res->length());
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    len= converter(collation.collation, (char*) res->ptr(), res->length(),
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                                        (char*) res->ptr(), res->length());
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    assert(len <= res->length());
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    res->length(len);
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  }
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  else
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  {
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    uint32_t len= res->length() * multiply;
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    tmp_value.alloc(len);
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    tmp_value.set_charset(collation.collation);
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    len= converter(collation.collation, (char*) res->ptr(), res->length(),
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                                        (char*) tmp_value.ptr(), len);
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    tmp_value.length(len);
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    res= &tmp_value;
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  }
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  return res;
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}
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void Item_func_lcase::fix_length_and_dec()
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{
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  collation.set(args[0]->collation);
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  multiply= collation.collation->casedn_multiply;
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  converter= collation.collation->cset->casedn;
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  max_length= args[0]->max_length * multiply;
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}
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void Item_func_ucase::fix_length_and_dec()
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{
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  collation.set(args[0]->collation);
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  multiply= collation.collation->caseup_multiply;
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  converter= collation.collation->cset->caseup;
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  max_length= args[0]->max_length * multiply;
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}
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} /* namespace drizzled */