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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file LICENSE.rst or https://cmake.org/licensing for details. */
#include "cmWIXPatchParser.h"
#include <utility>
#include <cm/memory>
#include <cmext/string_view>
#include <cm3p/expat.h>
#include "cmCPackGenerator.h"
cmWIXPatchNode::Type cmWIXPatchText::type()
{
return cmWIXPatchNode::TEXT;
}
cmWIXPatchNode::Type cmWIXPatchElement::type()
{
return cmWIXPatchNode::ELEMENT;
}
cmWIXPatchNode::~cmWIXPatchNode() = default;
cmWIXPatchElement::cmWIXPatchElement() = default;
cmWIXPatchElement::~cmWIXPatchElement() = default;
cmWIXPatchParser::cmWIXPatchParser(fragment_map_t& fragments,
cmCPackLog* logger)
: Logger(logger)
, State(BEGIN_DOCUMENT)
, Valid(true)
, Fragments(fragments)
{
}
void cmWIXPatchParser::StartElement(std::string const& name, char const** atts)
{
if (State == BEGIN_DOCUMENT) {
if (name == "CPackWiXPatch"_s) {
State = BEGIN_FRAGMENTS;
} else {
ReportValidationError("Expected root element 'CPackWiXPatch'");
}
} else if (State == BEGIN_FRAGMENTS) {
if (name == "CPackWiXFragment"_s) {
State = INSIDE_FRAGMENT;
StartFragment(atts);
} else {
ReportValidationError("Expected 'CPackWixFragment' element");
}
} else if (State == INSIDE_FRAGMENT) {
cmWIXPatchElement& parent = *ElementStack.back();
auto element = cm::make_unique<cmWIXPatchElement>();
element->name = name;
for (size_t i = 0; atts[i]; i += 2) {
std::string key = atts[i];
std::string value = atts[i + 1];
element->attributes[key] = value;
}
ElementStack.push_back(element.get());
parent.children.push_back(std::move(element));
}
}
void cmWIXPatchParser::StartFragment(char const** attributes)
{
cmWIXPatchElement* new_element = nullptr;
/* find the id of for fragment */
for (size_t i = 0; attributes[i]; i += 2) {
std::string const key = attributes[i];
std::string const value = attributes[i + 1];
if (key == "Id"_s) {
if (Fragments.find(value) != Fragments.end()) {
std::ostringstream tmp;
tmp << "Invalid reuse of 'CPackWixFragment' 'Id': " << value;
ReportValidationError(tmp.str());
}
new_element = &Fragments[value];
ElementStack.push_back(new_element);
}
}
/* add any additional attributes for the fragment */
if (!new_element) {
ReportValidationError("No 'Id' specified for 'CPackWixFragment' element");
} else {
for (size_t i = 0; attributes[i]; i += 2) {
std::string const key = attributes[i];
std::string const value = attributes[i + 1];
if (key != "Id"_s) {
new_element->attributes[key] = value;
}
}
}
}
void cmWIXPatchParser::EndElement(std::string const& name)
{
if (State == INSIDE_FRAGMENT) {
if (name == "CPackWiXFragment"_s) {
State = BEGIN_FRAGMENTS;
ElementStack.clear();
} else {
ElementStack.pop_back();
}
}
}
void cmWIXPatchParser::CharacterDataHandler(char const* data, int length)
{
char const* whitespace = "\x20\x09\x0d\x0a";
if (State == INSIDE_FRAGMENT) {
cmWIXPatchElement& parent = *ElementStack.back();
std::string text(data, length);
std::string::size_type first = text.find_first_not_of(whitespace);
std::string::size_type last = text.find_last_not_of(whitespace);
if (first != std::string::npos && last != std::string::npos) {
auto text_node = cm::make_unique<cmWIXPatchText>();
text_node->text = text.substr(first, last - first + 1);
parent.children.push_back(std::move(text_node));
}
}
}
void cmWIXPatchParser::ReportError(int line, int column, char const* msg)
{
cmCPackLogger(cmCPackLog::LOG_ERROR,
"Error while processing XML patch file at "
<< line << ':' << column << ": " << msg << std::endl);
Valid = false;
}
void cmWIXPatchParser::ReportValidationError(std::string const& message)
{
ReportError(
XML_GetCurrentLineNumber(static_cast<XML_Parser>(this->Parser)),
XML_GetCurrentColumnNumber(static_cast<XML_Parser>(this->Parser)),
message.c_str());
}
bool cmWIXPatchParser::IsValid() const
{
return Valid;
}
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