/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 *
 *************************************************************/


#include "precompiled_comphelper.hxx"
#include "sal/config.h"

#include <cstddef>
#include <string.h>
#include <vector>
#include <algorithm>

#include <rtl/ustring.hxx>
#include <rtl/ustrbuf.hxx>
#include <sal/types.h>

#include <comphelper/string.hxx>
#include <comphelper/stlunosequence.hxx>
#include <comphelper/stl_types.hxx>


namespace comphelper { namespace string {

rtl::OUString searchAndReplaceAsciiL(
    rtl::OUString const & source, char const * from, sal_Int32 fromLength,
    rtl::OUString const & to, sal_Int32 beginAt, sal_Int32 * replacedAt)
{
    sal_Int32 n = source.indexOfAsciiL(from, fromLength, beginAt);
    if (replacedAt != NULL) {
        *replacedAt = n;
    }
    return n == -1 ? source : source.replaceAt(n, fromLength, to);
}

::rtl::OUString searchAndReplaceAllAsciiWithAscii(
    const ::rtl::OUString& _source, const sal_Char* _from, const sal_Char* _to,
    const sal_Int32 _beginAt )
{
    sal_Int32 fromLength = strlen( _from );
    sal_Int32 n = _source.indexOfAsciiL( _from, fromLength, _beginAt );
    if ( n == -1 )
        return _source;

    ::rtl::OUString dest( _source );
    ::rtl::OUString to( ::rtl::OUString::createFromAscii( _to ) );
    do
    {
        dest = dest.replaceAt( n, fromLength, to );
        n = dest.indexOfAsciiL( _from, fromLength, n + to.getLength() );
    }
    while ( n != -1 );

    return dest;
}

::rtl::OUString& searchAndReplaceAsciiI(
    ::rtl::OUString & _source, sal_Char const * _asciiPattern, ::rtl::OUString const & _replace,
    sal_Int32 _beginAt, sal_Int32 * _replacedAt )
{
    sal_Int32 fromLength = strlen( _asciiPattern );
    sal_Int32 n = _source.indexOfAsciiL( _asciiPattern, fromLength, _beginAt );
    if ( _replacedAt != NULL )
        *_replacedAt = n;

    if ( n != -1 )
        _source = _source.replaceAt( n, fromLength, _replace );

    return _source;
}

// convert between sequence of string and comma separated string

::rtl::OUString convertCommaSeparated(
    ::com::sun::star::uno::Sequence< ::rtl::OUString > const& i_rSeq)
{
    ::rtl::OUStringBuffer buf;
    ::comphelper::intersperse(
        ::comphelper::stl_begin(i_rSeq), ::comphelper::stl_end(i_rSeq),
        ::comphelper::OUStringBufferAppender(buf),
        ::rtl::OUString::createFromAscii(", "));
    return buf.makeStringAndClear();
}

::com::sun::star::uno::Sequence< ::rtl::OUString >
    convertCommaSeparated( ::rtl::OUString const& i_rString )
{
    std::vector< ::rtl::OUString > vec;
    sal_Int32 idx = 0;
    do {
      ::rtl::OUString kw =
        i_rString.getToken(0, static_cast<sal_Unicode> (','), idx);
      kw = kw.trim();
      if ( !kw.isEmpty() ) {
          vec.push_back(kw);
      }
    } while (idx >= 0);
    ::com::sun::star::uno::Sequence< ::rtl::OUString > kws(vec.size());
    std::copy(vec.begin(), vec.end(), stl_begin(kws));
    return kws;
}

} }