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/* -*- 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 <o3tl/safeint.hxx>
#include <rtl/ustrbuf.hxx>
#include <sal/log.hxx>
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' || cur == '\t') {
// 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);
}
// strip the last whitespace (if there was one)
if (lastCharacterWasWhitespace) {
buffer.truncate(buffer.getLength() - 1);
}
mNewPositions.push_back(buffer.getLength());
mStripped = buffer.getStr();
}
sal_Int32
ToxWhitespaceStripper::GetPositionInStrippedString(sal_Int32 pos) const
{
assert(0 <= pos);
if (o3tl::make_unsigned(pos) >= mNewPositions.size()) {
// TODO probably this should assert, not just warn?
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(pos);
}
}
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