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Diffstat (limited to 'configmgr/source/valueparser.cxx')
| -rw-r--r-- | configmgr/source/valueparser.cxx | 454 |
1 files changed, 454 insertions, 0 deletions
diff --git a/configmgr/source/valueparser.cxx b/configmgr/source/valueparser.cxx new file mode 100644 index 000000000..82778e6c8 --- /dev/null +++ b/configmgr/source/valueparser.cxx @@ -0,0 +1,454 @@ +/* -*- 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 <sal/config.h> + +#include <cassert> + +#include <com/sun/star/uno/Any.hxx> +#include <com/sun/star/uno/RuntimeException.hpp> +#include <com/sun/star/uno/Sequence.hxx> +#include <comphelper/sequence.hxx> +#include <rtl/math.h> +#include <rtl/string.h> +#include <rtl/string.hxx> +#include <rtl/ustring.hxx> +#include <sal/types.h> +#include <xmlreader/span.hxx> +#include <xmlreader/xmlreader.hxx> + +#include "localizedvaluenode.hxx" +#include "node.hxx" +#include "nodemap.hxx" +#include "parsemanager.hxx" +#include "propertynode.hxx" +#include "type.hxx" +#include "valueparser.hxx" + +namespace configmgr { + +namespace { + +bool parseHexDigit(char c, int * value) { + assert(value != nullptr); + if (c >= '0' && c <= '9') { + *value = c - '0'; + return true; + } + if (c >= 'A' && c <= 'F') { + *value = c - 'A' + 10; + return true; + } + if (c >= 'a' && c <= 'f') { + *value = c - 'a' + 10; + return true; + } + return false; +} + +bool parseValue(xmlreader::Span const & text, sal_Bool * value) { + assert(text.is() && value != nullptr); + if (text == "true" || text == "1") { + *value = true; + return true; + } + if (text == "false" || text == "0") { + *value = false; + return true; + } + return false; +} + +bool parseValue(xmlreader::Span const & text, sal_Int16 * value) { + assert(text.is() && value != nullptr); + // For backwards compatibility, support hexadecimal values: + sal_Int32 n = + rtl_str_shortenedCompareIgnoreAsciiCase_WithLength( + text.begin, text.length, RTL_CONSTASCII_STRINGPARAM("0X"), + RTL_CONSTASCII_LENGTH("0X")) == 0 ? + static_cast< sal_Int32 >( + OString( + text.begin + RTL_CONSTASCII_LENGTH("0X"), + text.length - RTL_CONSTASCII_LENGTH("0X")).toUInt32(16)) : + OString(text.begin, text.length).toInt32(); + //TODO: check valid lexical representation + if (n >= SAL_MIN_INT16 && n <= SAL_MAX_INT16) { + *value = static_cast< sal_Int16 >(n); + return true; + } + return false; +} + +bool parseValue(xmlreader::Span const & text, sal_Int32 * value) { + assert(text.is() && value != nullptr); + // For backwards compatibility, support hexadecimal values: + *value = + rtl_str_shortenedCompareIgnoreAsciiCase_WithLength( + text.begin, text.length, RTL_CONSTASCII_STRINGPARAM("0X"), + RTL_CONSTASCII_LENGTH("0X")) == 0 ? + static_cast< sal_Int32 >( + OString( + text.begin + RTL_CONSTASCII_LENGTH("0X"), + text.length - RTL_CONSTASCII_LENGTH("0X")).toUInt32(16)) : + OString(text.begin, text.length).toInt32(); + //TODO: check valid lexical representation + return true; +} + +bool parseValue(xmlreader::Span const & text, sal_Int64 * value) { + assert(text.is() && value != nullptr); + // For backwards compatibility, support hexadecimal values: + *value = + rtl_str_shortenedCompareIgnoreAsciiCase_WithLength( + text.begin, text.length, RTL_CONSTASCII_STRINGPARAM("0X"), + RTL_CONSTASCII_LENGTH("0X")) == 0 ? + static_cast< sal_Int64 >( + OString( + text.begin + RTL_CONSTASCII_LENGTH("0X"), + text.length - RTL_CONSTASCII_LENGTH("0X")).toUInt64(16)) : + OString(text.begin, text.length).toInt64(); + //TODO: check valid lexical representation + return true; +} + +bool parseValue(xmlreader::Span const & text, double * value) { + assert(text.is() && value != nullptr); + *value = rtl_math_stringToDouble( + text.begin, text.begin + text.length, '.', 0, nullptr, nullptr); + //TODO: check valid lexical representation + return true; +} + +bool parseValue(xmlreader::Span const & text, OUString * value) { + assert(text.is() && value != nullptr); + *value = text.convertFromUtf8(); + return true; +} + +bool parseValue( + xmlreader::Span const & text, css::uno::Sequence< sal_Int8 > * value) +{ + assert(text.is() && value != nullptr); + if ((text.length & 1) != 0) { + return false; + } + std::vector< sal_Int8 > seq; + for (sal_Int32 i = 0; i != text.length;) { + int n1; + int n2; + if (!parseHexDigit(text.begin[i++], &n1) || + !parseHexDigit(text.begin[i++], &n2)) + { + return false; + } + seq.push_back(static_cast< sal_Int8 >((n1 << 4) | n2)); + } + *value = comphelper::containerToSequence(seq); + return true; +} + +template< typename T > css::uno::Any parseSingleValue( + xmlreader::Span const & text) +{ + T val; + if (!parseValue(text, &val)) { + throw css::uno::RuntimeException("invalid value"); + } + return css::uno::Any(val); +} + +template< typename T > css::uno::Any parseListValue( + OString const & separator, xmlreader::Span const & text) +{ + std::vector< T > seq; + xmlreader::Span sep; + if (separator.isEmpty()) { + sep = xmlreader::Span(RTL_CONSTASCII_STRINGPARAM(" ")); + } else { + sep = xmlreader::Span(separator.getStr(), separator.getLength()); + } + if (text.length != 0) { + for (xmlreader::Span t(text);;) { + sal_Int32 i = rtl_str_indexOfStr_WithLength( + t.begin, t.length, sep.begin, sep.length); + T val; + if (!parseValue( + xmlreader::Span(t.begin, i == -1 ? t.length : i), &val)) + { + throw css::uno::RuntimeException("invalid value"); + } + seq.push_back(val); + if (i < 0) { + break; + } + t.begin += i + sep.length; + t.length -= i + sep.length; + } + } + return css::uno::Any(comphelper::containerToSequence(seq)); +} + +css::uno::Any parseValue( + OString const & separator, xmlreader::Span const & text, Type type) +{ + switch (type) { + case TYPE_ANY: + throw css::uno::RuntimeException("invalid value of type any"); + case TYPE_BOOLEAN: + return parseSingleValue< sal_Bool >(text); + case TYPE_SHORT: + return parseSingleValue< sal_Int16 >(text); + case TYPE_INT: + return parseSingleValue< sal_Int32 >(text); + case TYPE_LONG: + return parseSingleValue< sal_Int64 >(text); + case TYPE_DOUBLE: + return parseSingleValue< double >(text); + case TYPE_STRING: + return parseSingleValue< OUString >(text); + case TYPE_HEXBINARY: + return parseSingleValue< css::uno::Sequence< sal_Int8 > >(text); + case TYPE_BOOLEAN_LIST: + return parseListValue< sal_Bool >(separator, text); + case TYPE_SHORT_LIST: + return parseListValue< sal_Int16 >(separator, text); + case TYPE_INT_LIST: + return parseListValue< sal_Int32 >(separator, text); + case TYPE_LONG_LIST: + return parseListValue< sal_Int64 >(separator, text); + case TYPE_DOUBLE_LIST: + return parseListValue< double >(separator, text); + case TYPE_STRING_LIST: + return parseListValue< OUString >(separator, text); + case TYPE_HEXBINARY_LIST: + return parseListValue< css::uno::Sequence< sal_Int8 > >( + separator, text); + default: + assert(false); + throw css::uno::RuntimeException("this cannot happen"); + } +} + +} + +ValueParser::ValueParser(int layer): type_(TYPE_ERROR), layer_(layer), state_() {} + +ValueParser::~ValueParser() {} + +xmlreader::XmlReader::Text ValueParser::getTextMode() const { + if (!node_) + return xmlreader::XmlReader::Text::NONE; + + switch (state_) { + case State::Text: + if (!items_.empty()) { + break; + } + [[fallthrough]]; + case State::IT: + return + (type_ == TYPE_STRING || type_ == TYPE_STRING_LIST || + !separator_.isEmpty()) + ? xmlreader::XmlReader::Text::Raw + : xmlreader::XmlReader::Text::Normalized; + default: + break; + } + return xmlreader::XmlReader::Text::NONE; +} + +bool ValueParser::startElement( + xmlreader::XmlReader & reader, int nsId, xmlreader::Span const & name) +{ + if (!node_.is()) { + return false; + } + switch (state_) { + case State::Text: + if (nsId == xmlreader::XmlReader::NAMESPACE_NONE && name == "it" && + isListType(type_) && separator_.isEmpty()) + { + pad_.clear(); + // before first <it>, characters are not ignored; assume they + // are only whitespace + state_ = State::IT; + return true; + } + [[fallthrough]]; + case State::IT: + if (nsId == xmlreader::XmlReader::NAMESPACE_NONE && + name == "unicode" && + (type_ == TYPE_STRING || type_ == TYPE_STRING_LIST)) + { + sal_Int32 scalar = -1; + for (;;) { + int attrNsId; + xmlreader::Span attrLn; + if (!reader.nextAttribute(&attrNsId, &attrLn)) { + break; + } + if (attrNsId == ParseManager::NAMESPACE_OOR && + attrLn == "scalar") + { + if (!parseValue(reader.getAttributeValue(true), &scalar)) { + scalar = -1; + } + break; + } + } + if (scalar >= 0 && scalar < 0x20 && scalar != 0x09 && + scalar != 0x0A && scalar != 0x0D) + { + char c = static_cast< char >(scalar); + pad_.add(&c, 1); + } else if (scalar == 0xFFFE) { + pad_.add(RTL_CONSTASCII_STRINGPARAM("\xEF\xBF\xBE")); + } else if (scalar == 0xFFFF) { + pad_.add(RTL_CONSTASCII_STRINGPARAM("\xEF\xBF\xBF")); + } else { + throw css::uno::RuntimeException( + "bad unicode scalar attribute in " + reader.getUrl()); + } + state_ = state_ == State::Text ? State::TextUnicode : State::ITUnicode; + return true; + } + break; + default: + break; + } + throw css::uno::RuntimeException( + "bad member <" + name.convertFromUtf8() + "> in " + reader.getUrl()); +} + +bool ValueParser::endElement() { + if (!node_.is()) { + return false; + } + switch (state_) { + case State::Text: + { + css::uno::Any *pValue = nullptr; + + switch (node_->kind()) { + case Node::KIND_PROPERTY: + pValue = static_cast< PropertyNode * >(node_.get())->getValuePtr(layer_); + break; + case Node::KIND_LOCALIZED_PROPERTY: + { + NodeMap & members = node_->getMembers(); + NodeMap::iterator i(members.find(localizedName_)); + LocalizedValueNode *pLVNode; + if (i == members.end()) { + pLVNode = new LocalizedValueNode(layer_); + members.insert( + NodeMap::value_type(localizedName_, pLVNode )); + } else { + pLVNode = static_cast< LocalizedValueNode * >(i->second.get()); + } + pValue = pLVNode->getValuePtr(layer_); + } + break; + default: + assert(false); // this cannot happen + return false; + } + + if (items_.empty()) { + *pValue = parseValue(separator_, pad_.get(), type_); + pad_.clear(); + } else { + switch (type_) { + case TYPE_BOOLEAN_LIST: + *pValue = convertItems< sal_Bool >(); + break; + case TYPE_SHORT_LIST: + *pValue = convertItems< sal_Int16 >(); + break; + case TYPE_INT_LIST: + *pValue = convertItems< sal_Int32 >(); + break; + case TYPE_LONG_LIST: + *pValue = convertItems< sal_Int64 >(); + break; + case TYPE_DOUBLE_LIST: + *pValue = convertItems< double >(); + break; + case TYPE_STRING_LIST: + *pValue = convertItems< OUString >(); + break; + case TYPE_HEXBINARY_LIST: + *pValue = convertItems< css::uno::Sequence< sal_Int8 > >(); + break; + default: + assert(false); // this cannot happen + break; + } + items_.clear(); + } + separator_.clear(); + node_.clear(); + } + break; + case State::TextUnicode: + state_ = State::Text; + break; + case State::ITUnicode: + state_ = State::IT; + break; + case State::IT: + items_.push_back( + parseValue(OString(), pad_.get(), elementType(type_))); + pad_.clear(); + state_ = State::Text; + break; + } + return true; +} + +void ValueParser::characters(xmlreader::Span const & text) { + if (node_.is()) { + assert(state_ == State::Text || state_ == State::IT); + pad_.add(text.begin, text.length); + } +} + +void ValueParser::start( + rtl::Reference< Node > const & node, OUString const & localizedName) +{ + assert(node.is() && !node_.is()); + node_ = node; + localizedName_ = localizedName; + state_ = State::Text; +} + + +template< typename T > css::uno::Any ValueParser::convertItems() { + css::uno::Sequence< T > seq(items_.size()); + auto seqRange = asNonConstRange(seq); + for (sal_Int32 i = 0; i < seq.getLength(); ++i) { + bool ok = (items_[i] >>= seqRange[i]); + assert(ok); + (void) ok; // avoid warnings + } + return css::uno::Any(seq); +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |