xmlreader/source/pad.cxx

   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  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <cassert>
  23
  24 #include <sal/types.h>
  25 #include <xmlreader/pad.hxx>
  26 #include <xmlreader/span.hxx>
  27
  28 namespace xmlreader {
  29
  30 void Pad::add(char const * begin, sal_Int32 length) {
  31     assert(
  32         begin != nullptr && length >= 0 && !(span_.is() && buffer_.getLength() != 0));
  33     if (length != 0) {
  34         flushSpan();
  35         if (buffer_.isEmpty()) {
  36             span_ = Span(begin, length);
  37         } else {
  38             buffer_.append(begin, length);
  39         }
  40     }
  41 }
  42
  43 void Pad::addEphemeral(char const * begin, sal_Int32 length) {
  44     assert(
  45         begin != nullptr && length >= 0 && !(span_.is() && buffer_.getLength() != 0));
  46     if (length != 0) {
  47         flushSpan();
  48         buffer_.append(begin, length);
  49     }
  50 }
  51
  52 void Pad::clear() {
  53     assert(!(span_.is() && buffer_.getLength() != 0));
  54     span_.clear();
  55     buffer_.setLength(0);
  56 }
  57
  58 Span Pad::get() const {
  59     assert(!(span_.is() && buffer_.getLength() != 0));
  60     if (span_.is()) {
  61         return span_;
  62     } else if (buffer_.isEmpty()) {
  63         return Span("");
  64     } else {
  65         return Span(buffer_.getStr(), buffer_.getLength());
  66     }
  67 }
  68
  69 void Pad::flushSpan() {
  70     if (span_.is()) {
  71         buffer_.append(span_.begin, span_.length);
  72         span_.clear();
  73     }
  74 }
  75
  76 }
  77
  78 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */