xapian-applications/omega/genericxmlparser.cc

   1 /** @file
   2  * @brief Generic parser for XML - just replaces tags with spaces
   3  */
   4 /* Copyright (C) 2020 Olly Betts
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <config.h>
  22
  23 #include "genericxmlparser.h"
  24
  25 #include "stringutils.h"
  26
  27 using namespace std;
  28
  29 void
  30 GenericXmlParser::process_content(const string& content)
  31 {
  32     auto first_non_space = find_if_not(content.begin(), content.end(),
  33                                        C_isspace);
  34     if (first_non_space == content.end()) {
  35         // Ignore content which is empty or all whitespace - we'll add a space
  36         // before we append any further content anyway.
  37         return;
  38     }
  39     if (!dump.empty())
  40         dump += ' ';
  41     auto first = first_non_space - content.begin();
  42     auto last_non_space = find_if_not(content.rbegin(), content.rend(),
  43                                       C_isspace);
  44     auto last = content.size() - (last_non_space - content.rbegin());
  45     dump.append(content, first, last - first);
  46 }