diff options
Diffstat (limited to 'dom/xslt/xslt/txEXSLTFunctions.cpp')
| -rw-r--r-- | dom/xslt/xslt/txEXSLTFunctions.cpp | 818 |
1 files changed, 818 insertions, 0 deletions
diff --git a/dom/xslt/xslt/txEXSLTFunctions.cpp b/dom/xslt/xslt/txEXSLTFunctions.cpp new file mode 100644 index 0000000000..d4882d0b13 --- /dev/null +++ b/dom/xslt/xslt/txEXSLTFunctions.cpp @@ -0,0 +1,818 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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/. */ + +#include "mozilla/ArrayUtils.h" +#include "mozilla/EnumeratedArray.h" +#include "mozilla/EnumeratedRange.h" +#include "mozilla/FloatingPoint.h" +#include "mozilla/MacroArgs.h" +#include "mozilla/MacroForEach.h" + +#include "nsAtom.h" +#include "nsGkAtoms.h" +#include "txExecutionState.h" +#include "txExpr.h" +#include "txIXPathContext.h" +#include "txIEXSLTFunctions.h" +#include "txNodeSet.h" +#include "txOutputFormat.h" +#include "txRtfHandler.h" +#include "txXPathTreeWalker.h" +#include "nsImportModule.h" +#include "nsPrintfCString.h" +#include "nsComponentManagerUtils.h" +#include "nsContentCID.h" +#include "nsContentCreatorFunctions.h" +#include "nsIContent.h" +#include "txMozillaXMLOutput.h" +#include "nsTextNode.h" +#include "mozilla/dom/DocumentFragmentBinding.h" +#include "prtime.h" +#include "xpcprivate.h" + +using namespace mozilla; +using namespace mozilla::dom; + +class txStylesheetCompilerState; + +// ------------------------------------------------------------------ +// Utility functions +// ------------------------------------------------------------------ + +static Document* getSourceDocument(txIEvalContext* aContext) { + txExecutionState* es = + static_cast<txExecutionState*>(aContext->getPrivateContext()); + if (!es) { + NS_ERROR("Need txExecutionState!"); + + return nullptr; + } + + const txXPathNode& document = es->getSourceDocument(); + return txXPathNativeNode::getDocument(document); +} + +static nsresult convertRtfToNode(txIEvalContext* aContext, + txResultTreeFragment* aRtf) { + Document* doc = getSourceDocument(aContext); + if (!doc) { + return NS_ERROR_UNEXPECTED; + } + + RefPtr<DocumentFragment> domFragment = + new (doc->NodeInfoManager()) DocumentFragment(doc->NodeInfoManager()); + + txOutputFormat format; + txMozillaXMLOutput mozHandler(&format, domFragment, true); + + nsresult rv = aRtf->flushToHandler(&mozHandler); + NS_ENSURE_SUCCESS(rv, rv); + + rv = mozHandler.closePrevious(true); + NS_ENSURE_SUCCESS(rv, rv); + + // The txResultTreeFragment will own this. + const txXPathNode* node = + txXPathNativeNode::createXPathNode(domFragment, true); + NS_ENSURE_TRUE(node, NS_ERROR_OUT_OF_MEMORY); + + aRtf->setNode(node); + + return NS_OK; +} + +static nsresult createTextNode(txIEvalContext* aContext, nsString& aValue, + txXPathNode** aResult) { + Document* doc = getSourceDocument(aContext); + if (!doc) { + return NS_ERROR_UNEXPECTED; + } + + RefPtr<nsTextNode> text = + new (doc->NodeInfoManager()) nsTextNode(doc->NodeInfoManager()); + + nsresult rv = text->SetText(aValue, false); + NS_ENSURE_SUCCESS(rv, rv); + + *aResult = txXPathNativeNode::createXPathNode(text, true); + NS_ENSURE_TRUE(*aResult, NS_ERROR_OUT_OF_MEMORY); + + return NS_OK; +} + +static nsresult createAndAddToResult(nsAtom* aName, const nsAString& aValue, + txNodeSet* aResultSet, + DocumentFragment* aResultHolder) { + Document* doc = aResultHolder->OwnerDoc(); + nsCOMPtr<Element> elem = + doc->CreateElem(nsDependentAtomString(aName), nullptr, kNameSpaceID_None); + NS_ENSURE_TRUE(elem, NS_ERROR_NULL_POINTER); + + RefPtr<nsTextNode> text = + new (doc->NodeInfoManager()) nsTextNode(doc->NodeInfoManager()); + + nsresult rv = text->SetText(aValue, false); + NS_ENSURE_SUCCESS(rv, rv); + + ErrorResult error; + elem->AppendChildTo(text, false, error); + if (error.Failed()) { + return error.StealNSResult(); + } + + aResultHolder->AppendChildTo(elem, false, error); + if (error.Failed()) { + return error.StealNSResult(); + } + + UniquePtr<txXPathNode> xpathNode( + txXPathNativeNode::createXPathNode(elem, true)); + NS_ENSURE_TRUE(xpathNode, NS_ERROR_OUT_OF_MEMORY); + + aResultSet->append(*xpathNode); + + return NS_OK; +} + +// Need to update this array if types are added to the ResultType enum in +// txAExprResult. +static const char* const sTypes[] = {"node-set", "boolean", "number", "string", + "RTF"}; + +// ------------------------------------------------------------------ +// Function implementations +// ------------------------------------------------------------------ + +enum class txEXSLTType { + // http://exslt.org/common + NODE_SET, + OBJECT_TYPE, + + // http://exslt.org/dates-and-times + DATE_TIME, + + // http://exslt.org/math + MAX, + MIN, + HIGHEST, + LOWEST, + + // http://exslt.org/regular-expressions + MATCH, + REPLACE, + TEST, + + // http://exslt.org/sets + DIFFERENCE_, // not DIFFERENCE to avoid a conflict with a winuser.h macro + DISTINCT, + HAS_SAME_NODE, + INTERSECTION, + LEADING, + TRAILING, + + // http://exslt.org/strings + CONCAT, + SPLIT, + TOKENIZE, + + _LIMIT, +}; + +struct txEXSLTFunctionDescriptor { + int8_t mMinParams; + int8_t mMaxParams; + Expr::ResultType mReturnType; + nsStaticAtom* mName; + bool (*mCreator)(txEXSLTType, FunctionCall**); + int32_t mNamespaceID; +}; + +static EnumeratedArray<txEXSLTType, txEXSLTType::_LIMIT, + txEXSLTFunctionDescriptor> + descriptTable; + +class txEXSLTFunctionCall : public FunctionCall { + public: + explicit txEXSLTFunctionCall(txEXSLTType aType) : mType(aType) {} + + static bool Create(txEXSLTType aType, FunctionCall** aFunction) { + *aFunction = new txEXSLTFunctionCall(aType); + return true; + } + + TX_DECL_FUNCTION + + private: + txEXSLTType mType; +}; + +class txEXSLTRegExFunctionCall : public FunctionCall { + public: + explicit txEXSLTRegExFunctionCall(txEXSLTType aType) : mType(aType) {} + + static bool Create(txEXSLTType aType, FunctionCall** aFunction) { + *aFunction = new txEXSLTRegExFunctionCall(aType); + return true; + } + + TX_DECL_FUNCTION + + private: + txEXSLTType mType; +}; + +nsresult txEXSLTFunctionCall::evaluate(txIEvalContext* aContext, + txAExprResult** aResult) { + *aResult = nullptr; + if (!requireParams(descriptTable[mType].mMinParams, + descriptTable[mType].mMaxParams, aContext)) { + return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT; + } + + nsresult rv = NS_OK; + switch (mType) { + case txEXSLTType::NODE_SET: { + RefPtr<txAExprResult> exprResult; + rv = mParams[0]->evaluate(aContext, getter_AddRefs(exprResult)); + NS_ENSURE_SUCCESS(rv, rv); + + if (exprResult->getResultType() == txAExprResult::NODESET) { + exprResult.forget(aResult); + } else { + RefPtr<txNodeSet> resultSet; + rv = aContext->recycler()->getNodeSet(getter_AddRefs(resultSet)); + NS_ENSURE_SUCCESS(rv, rv); + + if (exprResult->getResultType() == + txAExprResult::RESULT_TREE_FRAGMENT) { + txResultTreeFragment* rtf = + static_cast<txResultTreeFragment*>(exprResult.get()); + + const txXPathNode* node = rtf->getNode(); + if (!node) { + rv = convertRtfToNode(aContext, rtf); + NS_ENSURE_SUCCESS(rv, rv); + + node = rtf->getNode(); + } + + resultSet->append(*node); + } else { + nsAutoString value; + exprResult->stringValue(value); + + UniquePtr<txXPathNode> node; + rv = createTextNode(aContext, value, getter_Transfers(node)); + NS_ENSURE_SUCCESS(rv, rv); + + resultSet->append(*node); + } + + NS_ADDREF(*aResult = resultSet); + } + + return NS_OK; + } + case txEXSLTType::OBJECT_TYPE: { + RefPtr<txAExprResult> exprResult; + nsresult rv = mParams[0]->evaluate(aContext, getter_AddRefs(exprResult)); + NS_ENSURE_SUCCESS(rv, rv); + + RefPtr<StringResult> strRes; + rv = aContext->recycler()->getStringResult(getter_AddRefs(strRes)); + NS_ENSURE_SUCCESS(rv, rv); + + AppendASCIItoUTF16(MakeStringSpan(sTypes[exprResult->getResultType()]), + strRes->mValue); + + NS_ADDREF(*aResult = strRes); + + return NS_OK; + } + case txEXSLTType::DIFFERENCE_: + case txEXSLTType::INTERSECTION: { + RefPtr<txNodeSet> nodes1; + rv = evaluateToNodeSet(mParams[0], aContext, getter_AddRefs(nodes1)); + NS_ENSURE_SUCCESS(rv, rv); + + RefPtr<txNodeSet> nodes2; + rv = evaluateToNodeSet(mParams[1], aContext, getter_AddRefs(nodes2)); + NS_ENSURE_SUCCESS(rv, rv); + + RefPtr<txNodeSet> resultSet; + rv = aContext->recycler()->getNodeSet(getter_AddRefs(resultSet)); + NS_ENSURE_SUCCESS(rv, rv); + + bool insertOnFound = mType == txEXSLTType::INTERSECTION; + + int32_t searchPos = 0; + int32_t i, len = nodes1->size(); + for (i = 0; i < len; ++i) { + const txXPathNode& node = nodes1->get(i); + int32_t foundPos = nodes2->indexOf(node, searchPos); + if (foundPos >= 0) { + searchPos = foundPos + 1; + } + + if ((foundPos >= 0) == insertOnFound) { + rv = resultSet->append(node); + NS_ENSURE_SUCCESS(rv, rv); + } + } + + NS_ADDREF(*aResult = resultSet); + + return NS_OK; + } + case txEXSLTType::DISTINCT: { + RefPtr<txNodeSet> nodes; + rv = evaluateToNodeSet(mParams[0], aContext, getter_AddRefs(nodes)); + NS_ENSURE_SUCCESS(rv, rv); + + RefPtr<txNodeSet> resultSet; + rv = aContext->recycler()->getNodeSet(getter_AddRefs(resultSet)); + NS_ENSURE_SUCCESS(rv, rv); + + nsTHashSet<nsString> hash; + + int32_t i, len = nodes->size(); + for (i = 0; i < len; ++i) { + nsAutoString str; + const txXPathNode& node = nodes->get(i); + txXPathNodeUtils::appendNodeValue(node, str); + if (hash.EnsureInserted(str)) { + rv = resultSet->append(node); + NS_ENSURE_SUCCESS(rv, rv); + } + } + + NS_ADDREF(*aResult = resultSet); + + return NS_OK; + } + case txEXSLTType::HAS_SAME_NODE: { + RefPtr<txNodeSet> nodes1; + rv = evaluateToNodeSet(mParams[0], aContext, getter_AddRefs(nodes1)); + NS_ENSURE_SUCCESS(rv, rv); + + RefPtr<txNodeSet> nodes2; + rv = evaluateToNodeSet(mParams[1], aContext, getter_AddRefs(nodes2)); + NS_ENSURE_SUCCESS(rv, rv); + + bool found = false; + int32_t i, len = nodes1->size(); + for (i = 0; i < len; ++i) { + if (nodes2->contains(nodes1->get(i))) { + found = true; + break; + } + } + + aContext->recycler()->getBoolResult(found, aResult); + + return NS_OK; + } + case txEXSLTType::LEADING: + case txEXSLTType::TRAILING: { + RefPtr<txNodeSet> nodes1; + rv = evaluateToNodeSet(mParams[0], aContext, getter_AddRefs(nodes1)); + NS_ENSURE_SUCCESS(rv, rv); + + RefPtr<txNodeSet> nodes2; + rv = evaluateToNodeSet(mParams[1], aContext, getter_AddRefs(nodes2)); + NS_ENSURE_SUCCESS(rv, rv); + + if (nodes2->isEmpty()) { + *aResult = nodes1; + NS_ADDREF(*aResult); + + return NS_OK; + } + + RefPtr<txNodeSet> resultSet; + rv = aContext->recycler()->getNodeSet(getter_AddRefs(resultSet)); + NS_ENSURE_SUCCESS(rv, rv); + + int32_t end = nodes1->indexOf(nodes2->get(0)); + if (end >= 0) { + int32_t i = 0; + if (mType == txEXSLTType::TRAILING) { + i = end + 1; + end = nodes1->size(); + } + for (; i < end; ++i) { + rv = resultSet->append(nodes1->get(i)); + NS_ENSURE_SUCCESS(rv, rv); + } + } + + NS_ADDREF(*aResult = resultSet); + + return NS_OK; + } + case txEXSLTType::CONCAT: { + RefPtr<txNodeSet> nodes; + rv = evaluateToNodeSet(mParams[0], aContext, getter_AddRefs(nodes)); + NS_ENSURE_SUCCESS(rv, rv); + + nsAutoString str; + int32_t i, len = nodes->size(); + for (i = 0; i < len; ++i) { + txXPathNodeUtils::appendNodeValue(nodes->get(i), str); + } + + return aContext->recycler()->getStringResult(str, aResult); + } + case txEXSLTType::SPLIT: + case txEXSLTType::TOKENIZE: { + // Evaluate parameters + nsAutoString string; + rv = mParams[0]->evaluateToString(aContext, string); + NS_ENSURE_SUCCESS(rv, rv); + + nsAutoString pattern; + if (mParams.Length() == 2) { + rv = mParams[1]->evaluateToString(aContext, pattern); + NS_ENSURE_SUCCESS(rv, rv); + } else if (mType == txEXSLTType::SPLIT) { + pattern.Assign(' '); + } else { + pattern.AssignLiteral("\t\r\n "); + } + + // Set up holders for the result + Document* sourceDoc = getSourceDocument(aContext); + NS_ENSURE_STATE(sourceDoc); + + RefPtr<DocumentFragment> docFrag = new (sourceDoc->NodeInfoManager()) + DocumentFragment(sourceDoc->NodeInfoManager()); + + RefPtr<txNodeSet> resultSet; + rv = aContext->recycler()->getNodeSet(getter_AddRefs(resultSet)); + NS_ENSURE_SUCCESS(rv, rv); + + uint32_t tailIndex; + + // Start splitting + if (pattern.IsEmpty()) { + nsString::const_char_iterator start = string.BeginReading(); + nsString::const_char_iterator end = string.EndReading(); + for (; start < end; ++start) { + rv = createAndAddToResult(nsGkAtoms::token, + Substring(start, start + 1), resultSet, + docFrag); + NS_ENSURE_SUCCESS(rv, rv); + } + + tailIndex = string.Length(); + } else if (mType == txEXSLTType::SPLIT) { + nsAString::const_iterator strStart, strEnd; + string.BeginReading(strStart); + string.EndReading(strEnd); + nsAString::const_iterator start = strStart, end = strEnd; + + while (FindInReadable(pattern, start, end)) { + if (start != strStart) { + rv = createAndAddToResult(nsGkAtoms::token, + Substring(strStart, start), resultSet, + docFrag); + NS_ENSURE_SUCCESS(rv, rv); + } + strStart = start = end; + end = strEnd; + } + + tailIndex = strStart.get() - string.get(); + } else { + int32_t found, start = 0; + while ((found = string.FindCharInSet(pattern, start)) != kNotFound) { + if (found != start) { + rv = createAndAddToResult(nsGkAtoms::token, + Substring(string, start, found - start), + resultSet, docFrag); + NS_ENSURE_SUCCESS(rv, rv); + } + start = found + 1; + } + + tailIndex = start; + } + + // Add tail if needed + if (tailIndex != (uint32_t)string.Length()) { + rv = createAndAddToResult( + nsGkAtoms::token, Substring(string, tailIndex), resultSet, docFrag); + NS_ENSURE_SUCCESS(rv, rv); + } + + NS_ADDREF(*aResult = resultSet); + + return NS_OK; + } + case txEXSLTType::MAX: + case txEXSLTType::MIN: { + RefPtr<txNodeSet> nodes; + rv = evaluateToNodeSet(mParams[0], aContext, getter_AddRefs(nodes)); + NS_ENSURE_SUCCESS(rv, rv); + + if (nodes->isEmpty()) { + return aContext->recycler()->getNumberResult(UnspecifiedNaN<double>(), + aResult); + } + + bool findMax = mType == txEXSLTType::MAX; + + double res = findMax ? mozilla::NegativeInfinity<double>() + : mozilla::PositiveInfinity<double>(); + int32_t i, len = nodes->size(); + for (i = 0; i < len; ++i) { + nsAutoString str; + txXPathNodeUtils::appendNodeValue(nodes->get(i), str); + double val = txDouble::toDouble(str); + if (std::isnan(val)) { + res = UnspecifiedNaN<double>(); + break; + } + + if (findMax ? (val > res) : (val < res)) { + res = val; + } + } + + return aContext->recycler()->getNumberResult(res, aResult); + } + case txEXSLTType::HIGHEST: + case txEXSLTType::LOWEST: { + RefPtr<txNodeSet> nodes; + rv = evaluateToNodeSet(mParams[0], aContext, getter_AddRefs(nodes)); + NS_ENSURE_SUCCESS(rv, rv); + + if (nodes->isEmpty()) { + NS_ADDREF(*aResult = nodes); + + return NS_OK; + } + + RefPtr<txNodeSet> resultSet; + rv = aContext->recycler()->getNodeSet(getter_AddRefs(resultSet)); + NS_ENSURE_SUCCESS(rv, rv); + + bool findMax = mType == txEXSLTType::HIGHEST; + double res = findMax ? mozilla::NegativeInfinity<double>() + : mozilla::PositiveInfinity<double>(); + int32_t i, len = nodes->size(); + for (i = 0; i < len; ++i) { + nsAutoString str; + const txXPathNode& node = nodes->get(i); + txXPathNodeUtils::appendNodeValue(node, str); + double val = txDouble::toDouble(str); + if (std::isnan(val)) { + resultSet->clear(); + break; + } + if (findMax ? (val > res) : (val < res)) { + resultSet->clear(); + res = val; + } + + if (res == val) { + rv = resultSet->append(node); + NS_ENSURE_SUCCESS(rv, rv); + } + } + + NS_ADDREF(*aResult = resultSet); + + return NS_OK; + } + case txEXSLTType::DATE_TIME: { + // http://exslt.org/date/functions/date-time/ + + PRExplodedTime prtime; + PR_ExplodeTime(PR_Now(), PR_LocalTimeParameters, &prtime); + + int32_t offset = + (prtime.tm_params.tp_gmt_offset + prtime.tm_params.tp_dst_offset) / + 60; + + bool isneg = offset < 0; + if (isneg) offset = -offset; + + StringResult* strRes; + rv = aContext->recycler()->getStringResult(&strRes); + NS_ENSURE_SUCCESS(rv, rv); + + // format: YYYY-MM-DDTTHH:MM:SS.sss+00:00 + CopyASCIItoUTF16( + nsPrintfCString("%04hd-%02" PRId32 "-%02" PRId32 "T%02" PRId32 + ":%02" PRId32 ":%02" PRId32 ".%03" PRId32 + "%c%02" PRId32 ":%02" PRId32, + prtime.tm_year, prtime.tm_month + 1, prtime.tm_mday, + prtime.tm_hour, prtime.tm_min, prtime.tm_sec, + prtime.tm_usec / 10000, isneg ? '-' : '+', + offset / 60, offset % 60), + strRes->mValue); + + *aResult = strRes; + + return NS_OK; + } + default: { + aContext->receiveError(u"Internal error"_ns, NS_ERROR_UNEXPECTED); + return NS_ERROR_UNEXPECTED; + } + } + + MOZ_ASSERT_UNREACHABLE("Missing return?"); + return NS_ERROR_UNEXPECTED; +} + +Expr::ResultType txEXSLTFunctionCall::getReturnType() { + return descriptTable[mType].mReturnType; +} + +bool txEXSLTFunctionCall::isSensitiveTo(ContextSensitivity aContext) { + if (mType == txEXSLTType::NODE_SET || mType == txEXSLTType::SPLIT || + mType == txEXSLTType::TOKENIZE) { + return (aContext & PRIVATE_CONTEXT) || argsSensitiveTo(aContext); + } + return argsSensitiveTo(aContext); +} + +#ifdef TX_TO_STRING +void txEXSLTFunctionCall::appendName(nsAString& aDest) { + aDest.Append(descriptTable[mType].mName->GetUTF16String()); +} +#endif + +nsresult txEXSLTRegExFunctionCall::evaluate(txIEvalContext* aContext, + txAExprResult** aResult) { + *aResult = nullptr; + if (!requireParams(descriptTable[mType].mMinParams, + descriptTable[mType].mMaxParams, aContext)) { + return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT; + } + + nsAutoString string; + nsresult rv = mParams[0]->evaluateToString(aContext, string); + NS_ENSURE_SUCCESS(rv, rv); + + nsAutoString regex; + rv = mParams[1]->evaluateToString(aContext, regex); + NS_ENSURE_SUCCESS(rv, rv); + + nsAutoString flags; + if (mParams.Length() >= 3) { + rv = mParams[2]->evaluateToString(aContext, flags); + NS_ENSURE_SUCCESS(rv, rv); + } + + nsCOMPtr<txIEXSLTFunctions> funcs = + do_ImportESModule("resource://gre/modules/txEXSLTRegExFunctions.sys.mjs"); + MOZ_ALWAYS_TRUE(funcs); + + switch (mType) { + case txEXSLTType::MATCH: { + nsCOMPtr<Document> sourceDoc = getSourceDocument(aContext); + NS_ENSURE_STATE(sourceDoc); + + RefPtr<DocumentFragment> docFrag; + rv = funcs->Match(string, regex, flags, sourceDoc, + getter_AddRefs(docFrag)); + NS_ENSURE_SUCCESS(rv, rv); + NS_ENSURE_STATE(docFrag); + + RefPtr<txNodeSet> resultSet; + rv = aContext->recycler()->getNodeSet(getter_AddRefs(resultSet)); + NS_ENSURE_SUCCESS(rv, rv); + + UniquePtr<txXPathNode> node; + for (nsIContent* result = docFrag->GetFirstChild(); result; + result = result->GetNextSibling()) { + node = WrapUnique(txXPathNativeNode::createXPathNode(result, true)); + rv = resultSet->add(*node); + NS_ENSURE_SUCCESS(rv, rv); + } + + resultSet.forget(aResult); + + return NS_OK; + } + case txEXSLTType::REPLACE: { + nsAutoString replace; + rv = mParams[3]->evaluateToString(aContext, replace); + NS_ENSURE_SUCCESS(rv, rv); + + nsAutoString result; + rv = funcs->Replace(string, regex, flags, replace, result); + NS_ENSURE_SUCCESS(rv, rv); + + rv = aContext->recycler()->getStringResult(result, aResult); + NS_ENSURE_SUCCESS(rv, rv); + + return NS_OK; + } + case txEXSLTType::TEST: { + bool result; + rv = funcs->Test(string, regex, flags, &result); + NS_ENSURE_SUCCESS(rv, rv); + + aContext->recycler()->getBoolResult(result, aResult); + + return NS_OK; + } + default: { + aContext->receiveError(u"Internal error"_ns, NS_ERROR_UNEXPECTED); + return NS_ERROR_UNEXPECTED; + } + } + + MOZ_ASSERT_UNREACHABLE("Missing return?"); + return NS_ERROR_UNEXPECTED; +} + +Expr::ResultType txEXSLTRegExFunctionCall::getReturnType() { + return descriptTable[mType].mReturnType; +} + +bool txEXSLTRegExFunctionCall::isSensitiveTo(ContextSensitivity aContext) { + if (mType == txEXSLTType::MATCH) { + return (aContext & PRIVATE_CONTEXT) || argsSensitiveTo(aContext); + } + return argsSensitiveTo(aContext); +} + +#ifdef TX_TO_STRING +void txEXSLTRegExFunctionCall::appendName(nsAString& aDest) { + aDest.Append(descriptTable[mType].mName->GetUTF16String()); +} +#endif + +extern nsresult TX_ConstructEXSLTFunction(nsAtom* aName, int32_t aNamespaceID, + txStylesheetCompilerState* aState, + FunctionCall** aResult) { + for (auto i : MakeEnumeratedRange(txEXSLTType::_LIMIT)) { + const txEXSLTFunctionDescriptor& desc = descriptTable[i]; + if (aName == desc.mName && aNamespaceID == desc.mNamespaceID) { + return desc.mCreator(i, aResult) ? NS_OK : NS_ERROR_FAILURE; + } + } + + return NS_ERROR_XPATH_UNKNOWN_FUNCTION; +} + +extern bool TX_InitEXSLTFunction() { +#define EXSLT_FUNCS(NS, CLASS, ...) \ + { \ + int32_t nsid = txNamespaceManager::getNamespaceID(nsLiteralString(NS)); \ + if (nsid == kNameSpaceID_Unknown) { \ + return false; \ + } \ + MOZ_FOR_EACH(EXSLT_FUNC, (nsid, CLASS, ), (__VA_ARGS__)) \ + } + +#define EXSLT_FUNC(NS, CLASS, ...) \ + descriptTable[txEXSLTType::MOZ_ARG_1 __VA_ARGS__] = { \ + MOZ_ARGS_AFTER_1 __VA_ARGS__, CLASS::Create, NS}; + + EXSLT_FUNCS(u"http://exslt.org/common", txEXSLTFunctionCall, + (NODE_SET, 1, 1, Expr::NODESET_RESULT, nsGkAtoms::nodeSet), + (OBJECT_TYPE, 1, 1, Expr::STRING_RESULT, nsGkAtoms::objectType)) + + EXSLT_FUNCS(u"http://exslt.org/dates-and-times", txEXSLTFunctionCall, + (DATE_TIME, 0, 0, Expr::STRING_RESULT, nsGkAtoms::dateTime)) + + EXSLT_FUNCS(u"http://exslt.org/math", txEXSLTFunctionCall, + (MAX, 1, 1, Expr::NUMBER_RESULT, nsGkAtoms::max), + (MIN, 1, 1, Expr::NUMBER_RESULT, nsGkAtoms::min), + (HIGHEST, 1, 1, Expr::NODESET_RESULT, nsGkAtoms::highest), + (LOWEST, 1, 1, Expr::NODESET_RESULT, nsGkAtoms::lowest)) + + EXSLT_FUNCS(u"http://exslt.org/regular-expressions", txEXSLTRegExFunctionCall, + (MATCH, 2, 3, Expr::NODESET_RESULT, nsGkAtoms::match), + (REPLACE, 4, 4, Expr::STRING_RESULT, nsGkAtoms::replace), + (TEST, 2, 3, Expr::BOOLEAN_RESULT, nsGkAtoms::test)) + + EXSLT_FUNCS( + u"http://exslt.org/sets", txEXSLTFunctionCall, + (DIFFERENCE_, 2, 2, Expr::NODESET_RESULT, nsGkAtoms::difference), + (DISTINCT, 1, 1, Expr::NODESET_RESULT, nsGkAtoms::distinct), + (HAS_SAME_NODE, 2, 2, Expr::BOOLEAN_RESULT, nsGkAtoms::hasSameNode), + (INTERSECTION, 2, 2, Expr::NODESET_RESULT, nsGkAtoms::intersection), + (LEADING, 2, 2, Expr::NODESET_RESULT, nsGkAtoms::leading), + (TRAILING, 2, 2, Expr::NODESET_RESULT, nsGkAtoms::trailing)) + + EXSLT_FUNCS(u"http://exslt.org/strings", txEXSLTFunctionCall, + (CONCAT, 1, 1, Expr::STRING_RESULT, nsGkAtoms::concat), + (SPLIT, 1, 2, Expr::STRING_RESULT, nsGkAtoms::split), + (TOKENIZE, 1, 2, Expr::STRING_RESULT, nsGkAtoms::tokenize)) + +#undef EXSLT_FUNCS +#undef EXSLT_FUNC +#undef EXSLT_FUNC_HELPER +#undef EXSLT_FUNC_HELPER2 + + return true; +} |