include/cosv/str_types.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef COSV_STR_TYPES_HXX
  21 #define COSV_STR_TYPES_HXX
  22
  23
  24 namespace csv
  25 {
  26
  27 /** Provides some generally used constants.
  28 */
  29 struct str
  30 {
  31   public:
  32     typedef ::size_t    position;
  33     typedef ::size_t    size;
  34
  35     static const position npos = -1;
  36     static const size maxsize = -1;
  37
  38     enum insert_mode
  39     {
  40         overwrite = 0,
  41         insert = 1
  42     };
  43 };
  44
  45
  46 /** Is used for string comparisons.
  47
  48     @collab String
  49     @collab various csv::compare(...) functions
  50 */
  51 class CharOrder_Table
  52 {
  53   public:
  54     /** @precond
  55         Parameter i_pCharWeightsArray
  56         must have size of 256.
  57     */
  58                         CharOrder_Table(
  59                             const int *         i_pCharWeightsArray );
  60
  61     /** @return the weight of the char i_c.
  62         @precond
  63         Even with unusual implementations, where char has more than 8 bit,
  64         there must be true: 0 <= i_c < 256.
  65     */
  66     int                 operator()(
  67                             char                i_c ) const;
  68   private:
  69     int                 cWeights[256];
  70 };
  71
  72
  73 // IMPLEMENTATION
  74
  75 inline int
  76 CharOrder_Table::operator()( char i_c ) const
  77     { return cWeights[ UINT8(i_c) ]; }
  78
  79
  80
  81 }   // namespace csv
  82
  83 #endif
  84
  85 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */