StringListUtils.h

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// Copyright (c) 2002-present, OpenMS Inc. -- EKU Tuebingen, ETH Zurich, and FU Berlin
// SPDX-License-Identifier: BSD-3-Clause
//
// --------------------------------------------------------------------------
// $Maintainer: Timo Sachsenberg$
// $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) const
      {
        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