StringListUtils.h

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// --------------------------------------------------------------------------
//                   OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2018.
//
// This software is released under a three-clause BSD license:
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//    notice, this list of conditions and the following disclaimer.
//  * Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
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//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
// For a full list of authors, refer to the file AUTHORS.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// --------------------------------------------------------------------------
// $Maintainer: Timo Sachsenberg$
// $Authors: Marc Sturm $
// --------------------------------------------------------------------------

#pragma once

#include <OpenMS/DATASTRUCTURES/String.h>
#include <OpenMS/DATASTRUCTURES/ListUtils.h>
#include <OpenMS/OpenMSConfig.h>

class QStringList;

namespace OpenMS
{

  class OPENMS_DLLAPI StringListUtils
  {
public:
    typedef std::vector<String>::iterator Iterator;
    typedef std::vector<String>::const_iterator ConstIterator;
    typedef std::vector<String>::reverse_iterator ReverseIterator;
    typedef std::vector<String>::const_reverse_iterator ConstReverseIterator;

    static StringList fromQStringList(const QStringList& rhs);



    static Iterator searchPrefix(const Iterator& start, const Iterator& end, const String& text, bool trim = false);

    static ConstIterator searchPrefix(const ConstIterator& start, const ConstIterator& end, const String& text, bool trim = false);

    static ConstIterator searchPrefix(const StringList& container, const String& text, bool trim = false);

    static Iterator searchPrefix(StringList& container, const String& text, bool trim = false);

    static Iterator searchSuffix(const Iterator& start, const Iterator& end, const String& text, bool trim = false);

    static ConstIterator searchSuffix(const ConstIterator& start, const ConstIterator& end, const String& text, bool trim = false);

    static ConstIterator searchSuffix(const StringList& container, const String& text, bool trim = false);

    static Iterator searchSuffix(StringList& container, const String& text, bool trim = false);



    static void toUpper(StringList& sl);

    static void toLower(StringList& sl);

private:
    struct TrimmableStringPredicate_
    {
      TrimmableStringPredicate_(const String& target, const bool trim) :
        trim_(trim),
        target_(target)
      {
        if (trim_) target_.trim();
      }

      inline String getValue(const String& value)
      {
        if (trim_)
        {
          // trim is not a const function so we need to create a copy first
          String cp = value;
          return cp.trim();
        }
        else
        {
          return value;
        }
      }

protected:
      bool trim_;
      String target_;
    };

    struct PrefixPredicate_ :
      TrimmableStringPredicate_
    {
      PrefixPredicate_(const String& target, const bool trim) :
        TrimmableStringPredicate_(target, trim)
      {}

      inline bool operator()(const String& value)
      {
        return getValue(value).hasPrefix(target_);
      }

    };

    struct SuffixPredicate_ :
      TrimmableStringPredicate_
    {
      SuffixPredicate_(const String& target, const bool trim) :
        TrimmableStringPredicate_(target, trim)
      {}

      inline bool operator()(const String& value)
      {
        return getValue(value).hasSuffix(target_);
      }

    };

    StringListUtils() {}
    StringListUtils(const StringListUtils&){}
    StringListUtils& operator=(StringListUtils&){return *this; }
  };

} // namespace OPENMS