xapian-applications/omega/csvescape.cc

   1 /** @file
   2  * @brief Escape a string for use in a CSV file
   3  */
   4 /* Copyright (C) 2015 Olly Betts
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to
   8  * deal in the Software without restriction, including without limitation the
   9  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  10  * sell copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  22  * IN THE SOFTWARE.
  23  */
  24
  25 #include <config.h>
  26
  27 #include "csvescape.h"
  28
  29 #include <string>
  30
  31 using namespace std;
  32
  33 void
  34 csv_escape_(string &s, string::size_type i)
  35 {
  36     // Escape any double quotes by doubling them.
  37     s.insert(0, 1, '"');
  38     string::size_type j;
  39     while ((j = s.find_first_of('"', i + 1)) != std::string::npos) {
  40         s.insert(j, 1, '"');
  41         i = j + 1;
  42     }
  43     s.append(1, '"');
  44 }