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68e8fee5fc
This commit adds infrastructure for conversion and testing it. The conversion is still incomplete, pending discussion about which tags should we use in the XML documents. I copied the RelaxNG schema from Clang, and will edit it accordingly. Swift SVN r16451
97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
//===-- XMLValidator.cpp - XML validation ---------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include "XMLValidator.h"
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#ifdef SWIFT_HAVE_LIBXML
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// libxml headers use their own variant of documentation comments that Clang
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// does not understand well.
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdocumentation"
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#include <libxml/parser.h>
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#include <libxml/relaxng.h>
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#include <libxml/xmlerror.h>
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#pragma clang diagnostic pop
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using namespace swift;
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struct XMLValidator::Implementation {
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std::string SchemaFileName;
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xmlRelaxNGParserCtxtPtr RNGParser;
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xmlRelaxNGPtr Schema;
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};
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XMLValidator::XMLValidator() : Impl(new Implementation()) {}
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XMLValidator::~XMLValidator() { delete Impl; }
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void XMLValidator::setSchema(StringRef FileName) {
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assert(Impl->SchemaFileName.empty());
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Impl->SchemaFileName = FileName;
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}
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XMLValidator::Status XMLValidator::validate(const std::string &XML) {
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if (Impl->SchemaFileName.empty())
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return Status{ErrorCode::NoSchema, ""};
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if (!Impl->RNGParser) {
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Impl->RNGParser = xmlRelaxNGNewParserCtxt(Impl->SchemaFileName.c_str());
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Impl->Schema = xmlRelaxNGParse(Impl->RNGParser);
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}
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if (!Impl->RNGParser)
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return Status{ErrorCode::InternalError, ""};
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if (!Impl->Schema)
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return Status{ErrorCode::BadSchema, ""};
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xmlDocPtr Doc = xmlParseDoc(reinterpret_cast<const xmlChar *>(XML.data()));
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if (!Doc)
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return Status{ErrorCode::NotWellFormed, xmlGetLastError()->message};
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xmlRelaxNGValidCtxtPtr ValidationCtxt = xmlRelaxNGNewValidCtxt(Impl->Schema);
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int ValidationStatus = xmlRelaxNGValidateDoc(ValidationCtxt, Doc);
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Status Result;
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if (ValidationStatus == 0) {
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Result = Status{ErrorCode::Valid, ""};
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} else if (ValidationStatus > 0) {
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Result = Status{ErrorCode::NotValid, xmlGetLastError()->message};
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} else
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Result = Status{ErrorCode::InternalError, ""};
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xmlRelaxNGFreeValidCtxt(ValidationCtxt);
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xmlFreeDoc(Doc);
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return Result;
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}
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#else // !SWIFT_HAVE_LIBXML
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using namespace swift;
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struct XMLValidator::Implementation {};
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XMLValidator::XMLValidator() : Impl(new Implementation()) {}
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XMLValidator::~XMLValidator() { delete Impl; }
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void XMLValidator::setSchema(StringRef FileName) {}
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XMLValidator::Status XMLValidator::validate(const std::string &XML) {
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return Status{ErrorCode::NotCompiledIn, ""};
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}
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#endif // SWIFT_HAVE_LIBXML
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