Line data    Source code

       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             : 
      10             : #include "ToxWhitespaceStripper.hxx"
      11             : 
      12             : #include "rtl/ustrbuf.hxx"
      13             : #include "sal/log.hxx"
      14             : 
      15             : #include <boost/numeric/conversion/cast.hpp>
      16             : 
      17             : namespace sw {
      18             : 
      19          16 : ToxWhitespaceStripper::ToxWhitespaceStripper(const OUString& inputString)
      20             : {
      21          16 :     OUStringBuffer buffer;
      22             : 
      23          16 :     bool lastCharacterWasWhitespace = false;
      24         127 :     for (sal_Int32 pos = 0; pos < inputString.getLength(); ++pos) {
      25         111 :         sal_Unicode cur = inputString[pos];
      26             : 
      27         111 :         if (cur == ' ' || cur == '\n') {
      28             :             // merge consecutive whitespaces (and translate them to spaces)
      29          26 :             if (!lastCharacterWasWhitespace) {
      30          17 :                 buffer.append(' ');
      31             :             }
      32          26 :             lastCharacterWasWhitespace = true;
      33             :         }
      34             :         else {
      35          85 :             buffer.append(cur);
      36          85 :             lastCharacterWasWhitespace = false;
      37             :         }
      38         111 :         mNewPositions.push_back(buffer.getLength()-1);
      39             :     }
      40             :     // Add one position if the position after the stripped string is requested, e.g., for attributes which
      41             :     // extend beyond the string.
      42          16 :     mNewPositions.push_back(buffer.getLength());
      43             :     // strip the last whitespace (if there was one)
      44          16 :     if (lastCharacterWasWhitespace) {
      45           6 :         buffer.truncate(buffer.getLength() - 1);
      46             :     }
      47          16 :     mStripped = buffer.getStr();
      48          16 : }
      49             : 
      50             : 
      51             : sal_Int32
      52          28 : ToxWhitespaceStripper::GetPositionInStrippedString(sal_Int32 pos) const
      53             : {
      54          28 :     size_t upos = boost::numeric_cast<size_t>(pos);
      55          28 :     if (upos >= mNewPositions.size()) {
      56             :         SAL_WARN("sw.core", "Requested position of TOX entry text which does not exist. "
      57             :                             "Maybe the formatting hint is corrupt?");
      58           1 :         return mNewPositions.back();
      59             :     }
      60          27 :     return mNewPositions.at(upos);
      61             : }
      62             : 
      63             : 
      64             : }