Files
libreoffice/sw/source/core/tox/ToxWhitespaceStripper.cxx
Tobias Lippert 4bdbea5447 tdf#89520 Make TOX creation more robust
The code is now more robust and will accept illegal arguments.

Change-Id: I43ae82b953cea845fb170aa7b6e8d42470ad4e5e
Reviewed-on: https://gerrit.libreoffice.org/14580
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
2015-03-03 10:08:35 +00:00

65 lines
1.9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "ToxWhitespaceStripper.hxx"
#include "rtl/ustrbuf.hxx"
#include "sal/log.hxx"
#include <boost/numeric/conversion/cast.hpp>
namespace sw {
ToxWhitespaceStripper::ToxWhitespaceStripper(const OUString& inputString)
{
OUStringBuffer buffer;
bool lastCharacterWasWhitespace = false;
for (sal_Int32 pos = 0; pos < inputString.getLength(); ++pos) {
sal_Unicode cur = inputString[pos];
if (cur == ' ' || cur == '\n') {
// merge consecutive whitespaces (and translate them to spaces)
if (!lastCharacterWasWhitespace) {
buffer.append(' ');
}
lastCharacterWasWhitespace = true;
}
else {
buffer.append(cur);
lastCharacterWasWhitespace = false;
}
mNewPositions.push_back(buffer.getLength()-1);
}
// Add one position if the position after the stripped string is requested, e.g., for attributes which
// extend beyond the string.
mNewPositions.push_back(buffer.getLength());
// strip the last whitespace (if there was one)
if (lastCharacterWasWhitespace) {
buffer.truncate(buffer.getLength() - 1);
}
mStripped = buffer.getStr();
}
sal_Int32
ToxWhitespaceStripper::GetPositionInStrippedString(sal_Int32 pos) const
{
size_t upos = boost::numeric_cast<size_t>(pos);
if (upos >= mNewPositions.size()) {
SAL_WARN("sw.core", "Requested position of TOX entry text which does not exist. "
"Maybe the formatting hint is corrupt?");
return mNewPositions.back();
}
return mNewPositions.at(upos);
}
}