Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 192 insertions, 0 deletions

diff --git a/shell/source/all/xml_parser.cxx b/shell/source/all/xml_parser.cxx
new file mode 100644
index 000000000..b067c6231
--- /dev/null
+++ b/shell/source/all/xml_parser.cxx
@@ -0,0 +1,192 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <xml_parser.hxx>
+#include <i_xml_parser_event_handler.hxx>
+
+#ifdef _WIN32
+#include <utilities.hxx>
+#else
+#define UTF8ToWString(s) s
+#endif
+
+#include <assert.h>
+
+namespace /* private */
+{
+
+    /*  Extracts the local part of tag without
+        namespace decoration e.g. meta:creator -> creator */
+    const XML_Char COLON = ':';
+
+    const XML_Char* get_local_name(const XML_Char* rawname)
+    {
+        const XML_Char* p = rawname;
+
+        // go to the end
+        while (*p) p++;
+
+        // go back until the first ':'
+        while (*p != COLON && p > rawname)
+            p--;
+
+        // if we are on a colon one step forward
+        if (*p == COLON)
+            p++;
+
+        return p;
+    }
+
+    xml_parser* get_parser_instance(void* data)
+    {
+        return static_cast<xml_parser*>(XML_GetUserData(
+            static_cast<XML_Parser>(data)));
+    }
+
+    bool has_only_whitespaces(const XML_Char* s, int len)
+    {
+        const XML_Char* p = s;
+        for (int i = 0; i < len; i++)
+            if (*p++ != ' ') return false;
+        return true;
+    }
+}
+
+xml_parser::xml_parser() :
+    document_handler_(nullptr),
+    xml_parser_(XML_ParserCreate(nullptr))
+{
+    init();
+}
+
+xml_parser::~xml_parser()
+{
+    XML_ParserFree(xml_parser_);
+}
+
+/* Callback functions will be called by the parser on
+   different events */
+
+extern "C"
+{
+
+static void xml_start_element_handler(void* UserData, const XML_Char* name, const XML_Char** atts)
+{
+    assert(UserData != nullptr);
+
+    xml_parser* pImpl  = get_parser_instance(UserData);
+
+    i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
+    if (!pDocHdl)
+        return;
+
+    xml_tag_attribute_container_t attributes;
+
+    int i = 0;
+
+    while(atts[i])
+    {
+        attributes[UTF8ToWString(reinterpret_cast<const char*>(get_local_name(atts[i])))] = UTF8ToWString(reinterpret_cast<const char*>(atts[i+1]));
+        i += 2; // skip to next pair
+    }
+
+    pDocHdl->start_element(
+        UTF8ToWString(reinterpret_cast<const char*>(name)), UTF8ToWString(reinterpret_cast<const char*>(get_local_name(name))), attributes);
+}
+
+static void xml_end_element_handler(void* UserData, const XML_Char* name)
+{
+    assert(UserData);
+
+    xml_parser* pImpl  = get_parser_instance(UserData);
+    i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
+    if (pDocHdl)
+        pDocHdl->end_element(UTF8ToWString(reinterpret_cast<const char*>(name)), UTF8ToWString(reinterpret_cast<const char*>(get_local_name(name))));
+}
+
+static void xml_character_data_handler(void* UserData, const XML_Char* s, int len)
+{
+    assert(UserData);
+
+    xml_parser* pImpl  = get_parser_instance(UserData);
+    i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
+    if (pDocHdl)
+    {
+        if (has_only_whitespaces(s,len))
+            pDocHdl->ignore_whitespace(UTF8ToWString(std::string(reinterpret_cast<const char*>(s), len)));
+        else
+            pDocHdl->characters(UTF8ToWString(std::string(reinterpret_cast<const char*>(s), len)));
+    }
+}
+
+static void xml_comment_handler(void* UserData, const XML_Char* Data)
+{
+    assert(UserData);
+
+    xml_parser* pImpl  = get_parser_instance(UserData);
+    i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
+    if (pDocHdl)
+        pDocHdl->comment(UTF8ToWString(reinterpret_cast<const char*>(Data)));
+}
+
+} // extern "C"
+
+void xml_parser::init()
+{
+    XML_SetUserData(xml_parser_, this);
+
+    // we use the parser as handler argument,
+    // so we could use it if necessary, the
+    // UserData are usable anyway using
+    // XML_GetUserData(...)
+    XML_UseParserAsHandlerArg(xml_parser_);
+
+    XML_SetElementHandler(
+        xml_parser_,
+        xml_start_element_handler,
+        xml_end_element_handler);
+
+    XML_SetCharacterDataHandler(
+        xml_parser_,
+        xml_character_data_handler);
+
+    XML_SetCommentHandler(
+        xml_parser_,
+        xml_comment_handler);
+}
+
+void xml_parser::parse(const char* XmlData, size_t Length, bool IsFinal)
+{
+    if (XML_STATUS_ERROR ==
+            XML_Parse(xml_parser_, XmlData, static_cast<int>(Length), IsFinal))
+    {
+        throw xml_parser_exception(
+            XML_ErrorString(XML_GetErrorCode(xml_parser_)));
+    }
+}
+
+void xml_parser::set_document_handler(
+    i_xml_parser_event_handler* event_handler)
+{
+    document_handler_ = event_handler;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */