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RetroZilla/extensions/transformiix/source/xslt/txStylesheetCompileHandlers.cpp
Ryan Nematz 2f2ae146c0 first commit
2015-10-20 23:03:22 -04:00

2984 lines
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is TransforMiiX XSLT processor code.
*
* The Initial Developer of the Original Code is
* Jonas Sicking.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Jonas Sicking <jonas@sicking.cc>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "txStylesheetCompiler.h"
#include "txStylesheetCompileHandlers.h"
#include "txTokenizer.h"
#include "txInstructions.h"
#include "txAtoms.h"
#include "txCore.h"
#include "txStringUtils.h"
#include "txStylesheet.h"
#include "txToplevelItems.h"
#include "txPatternParser.h"
#include "txNamespaceMap.h"
#include "txURIUtils.h"
#include "XSLTFunctions.h"
txHandlerTable* gTxIgnoreHandler = 0;
txHandlerTable* gTxRootHandler = 0;
txHandlerTable* gTxEmbedHandler = 0;
txHandlerTable* gTxTopHandler = 0;
txHandlerTable* gTxTemplateHandler = 0;
txHandlerTable* gTxTextHandler = 0;
txHandlerTable* gTxApplyTemplatesHandler = 0;
txHandlerTable* gTxCallTemplateHandler = 0;
txHandlerTable* gTxVariableHandler = 0;
txHandlerTable* gTxForEachHandler = 0;
txHandlerTable* gTxTopVariableHandler = 0;
txHandlerTable* gTxChooseHandler = 0;
txHandlerTable* gTxParamHandler = 0;
txHandlerTable* gTxImportHandler = 0;
txHandlerTable* gTxAttributeSetHandler = 0;
txHandlerTable* gTxFallbackHandler = 0;
nsresult
txFnStartLRE(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState);
nsresult
txFnEndLRE(txStylesheetCompilerState& aState);
#define TX_RETURN_IF_WHITESPACE(_str, _state) \
do { \
if (!_state.mElementContext->mPreserveWhitespace && \
XMLUtils::isWhitespace(PromiseFlatString(_str))) { \
return NS_OK; \
} \
} while(0)
nsresult
getStyleAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
PRInt32 aNamespace,
nsIAtom* aName,
PRBool aRequired,
txStylesheetAttr** aAttr)
{
PRInt32 i;
for (i = 0; i < aAttrCount; ++i) {
txStylesheetAttr* attr = aAttributes + i;
if (attr->mNamespaceID == aNamespace &&
attr->mLocalName == aName) {
*aAttr = attr;
return NS_OK;
}
}
*aAttr = nsnull;
if (aRequired) {
// XXX ErrorReport: missing required attribute
return NS_ERROR_XSLT_PARSE_FAILURE;
}
return NS_OK;
}
nsresult
parseUseAttrSets(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
PRBool aInXSLTNS,
txStylesheetCompilerState& aState)
{
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount,
aInXSLTNS ? kNameSpaceID_XSLT
: kNameSpaceID_None,
txXSLTAtoms::useAttributeSets, PR_FALSE,
&attr);
if (!attr) {
return rv;
}
txTokenizer tok(attr->mValue);
while (tok.hasMoreTokens()) {
txExpandedName name;
rv = name.init(tok.nextToken(), aState.mElementContext->mMappings,
PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(new txInsertAttrSet(name));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
nsresult
getQNameAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
nsIAtom* aName,
PRBool aRequired,
txStylesheetCompilerState& aState,
txExpandedName& aExpName)
{
aExpName.reset();
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
aName, aRequired, &attr);
if (!attr) {
return rv;
}
rv = aExpName.init(attr->mValue, aState.mElementContext->mMappings,
PR_FALSE);
if (!aRequired && NS_FAILED(rv) && aState.fcp()) {
aExpName.reset();
rv = NS_OK;
}
return rv;
}
nsresult
getExprAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
nsIAtom* aName,
PRBool aRequired,
txStylesheetCompilerState& aState,
nsAutoPtr<Expr>& aExpr)
{
aExpr = nsnull;
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
aName, aRequired, &attr);
if (!attr) {
return rv;
}
rv = txExprParser::createExpr(attr->mValue, &aState,
getter_Transfers(aExpr));
if (NS_FAILED(rv) && aState.fcp()) {
// use default value in fcp for not required exprs
if (aRequired) {
aExpr = new txErrorExpr(
#ifdef TX_TO_STRING
attr->mValue
#endif
);
NS_ENSURE_TRUE(aExpr, NS_ERROR_OUT_OF_MEMORY);
}
else {
aExpr = nsnull;
}
return NS_OK;
}
return rv;
}
nsresult
getAVTAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
nsIAtom* aName,
PRBool aRequired,
txStylesheetCompilerState& aState,
nsAutoPtr<Expr>& aAVT)
{
aAVT = nsnull;
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
aName, aRequired, &attr);
if (!attr) {
return rv;
}
aAVT = txExprParser::createAttributeValueTemplate(attr->mValue, &aState);
if (!aAVT) {
if (!aState.fcp()) {
// XXX ErrorReport: XPath parse failure
return NS_ERROR_XPATH_PARSE_FAILURE;
}
if (aRequired) {
aAVT = new txErrorExpr(
#ifdef TX_TO_STRING
attr->mValue
#endif
);
NS_ENSURE_TRUE(aAVT, NS_ERROR_OUT_OF_MEMORY);
}
}
return NS_OK;
}
nsresult
getPatternAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
nsIAtom* aName,
PRBool aRequired,
txStylesheetCompilerState& aState,
nsAutoPtr<txPattern>& aPattern)
{
aPattern = nsnull;
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
aName, aRequired, &attr);
if (!attr) {
return rv;
}
aPattern = txPatternParser::createPattern(attr->mValue, &aState);
if (!aPattern && (aRequired || !aState.fcp())) {
// XXX ErrorReport: XSLT-Pattern parse failure
return NS_ERROR_XPATH_PARSE_FAILURE;
}
return NS_OK;
}
nsresult
getNumberAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
nsIAtom* aName,
PRBool aRequired,
txStylesheetCompilerState& aState,
double& aNumber)
{
aNumber = Double::NaN;
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
aName, aRequired, &attr);
if (!attr) {
return rv;
}
aNumber = Double::toDouble(attr->mValue);
if (Double::isNaN(aNumber) && (aRequired || !aState.fcp())) {
// XXX ErrorReport: number parse failure
return NS_ERROR_XSLT_PARSE_FAILURE;
}
return NS_OK;
}
nsresult
getAtomAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
nsIAtom* aName,
PRBool aRequired,
txStylesheetCompilerState& aState,
nsIAtom** aAtom)
{
*aAtom = nsnull;
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
aName, aRequired, &attr);
if (!attr) {
return rv;
}
*aAtom = NS_NewAtom(attr->mValue);
NS_ENSURE_TRUE(*aAtom, NS_ERROR_OUT_OF_MEMORY);
return NS_OK;
}
nsresult
getYesNoAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
nsIAtom* aName,
PRBool aRequired,
txStylesheetCompilerState& aState,
txThreeState& aRes)
{
aRes = eNotSet;
nsCOMPtr<nsIAtom> atom;
nsresult rv = getAtomAttr(aAttributes, aAttrCount, aName, aRequired,
aState, getter_AddRefs(atom));
if (!atom) {
return rv;
}
if (atom == txXSLTAtoms::yes) {
aRes = eTrue;
}
else if (atom == txXSLTAtoms::no) {
aRes = eFalse;
}
else if (aRequired || !aState.fcp()) {
// XXX ErrorReport: unknown values
return NS_ERROR_XSLT_PARSE_FAILURE;
}
return NS_OK;
}
nsresult
getCharAttr(txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
nsIAtom* aName,
PRBool aRequired,
txStylesheetCompilerState& aState,
PRUnichar& aChar)
{
// Don't reset aChar since it contains the default value
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
aName, aRequired, &attr);
if (!attr) {
return rv;
}
if (attr->mValue.Length() == 1) {
aChar = attr->mValue.CharAt(0);
}
else if (aRequired || !aState.fcp()) {
// XXX ErrorReport: not a character
return NS_ERROR_XSLT_PARSE_FAILURE;
}
return NS_OK;
}
/**
* Ignore and error handlers
*/
nsresult
txFnTextIgnore(const nsAString& aStr, txStylesheetCompilerState& aState)
{
return NS_OK;
}
nsresult
txFnTextError(const nsAString& aStr, txStylesheetCompilerState& aState)
{
TX_RETURN_IF_WHITESPACE(aStr, aState);
return NS_ERROR_XSLT_PARSE_FAILURE;
}
nsresult
txFnStartElementIgnore(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
return NS_OK;
}
nsresult
txFnEndElementIgnore(txStylesheetCompilerState& aState)
{
return NS_OK;
}
nsresult
txFnStartElementSetIgnore(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndElementSetIgnore(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
nsresult
txFnStartElementError(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
return NS_ERROR_XSLT_PARSE_FAILURE;
}
nsresult
txFnEndElementError(txStylesheetCompilerState& aState)
{
NS_ERROR("txFnEndElementError shouldn't be called");
return NS_ERROR_XSLT_PARSE_FAILURE;
}
/**
* Root handlers
*/
nsresult
txFnStartStylesheet(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
txStylesheetAttr* attr;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::version, PR_TRUE, &attr);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxImportHandler);
}
nsresult
txFnEndStylesheet(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
nsresult
txFnStartElementContinueTopLevel(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
aState.mHandlerTable = gTxTopHandler;
return NS_XSLT_GET_NEW_HANDLER;
}
nsresult
txFnStartLREStylesheet(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
txStylesheetAttr* attr;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_XSLT,
txXSLTAtoms::version, PR_TRUE, &attr);
NS_ENSURE_SUCCESS(rv, rv);
txExpandedName nullExpr;
double prio = Double::NaN;
nsAutoPtr<txPattern> match(new txRootPattern());
NS_ENSURE_TRUE(match, NS_ERROR_OUT_OF_MEMORY);
nsAutoPtr<txTemplateItem> templ(new txTemplateItem(match, nullExpr,
nullExpr, prio));
NS_ENSURE_TRUE(templ, NS_ERROR_OUT_OF_MEMORY);
aState.openInstructionContainer(templ);
rv = aState.addToplevelItem(templ);
NS_ENSURE_SUCCESS(rv, rv);
templ.forget();
rv = aState.pushHandlerTable(gTxTemplateHandler);
NS_ENSURE_SUCCESS(rv, rv);
return txFnStartLRE(aNamespaceID, aLocalName, aPrefix, aAttributes,
aAttrCount, aState);
}
nsresult
txFnEndLREStylesheet(txStylesheetCompilerState& aState)
{
nsresult rv = txFnEndLRE(aState);
NS_ENSURE_SUCCESS(rv, rv);
aState.popHandlerTable();
nsAutoPtr<txInstruction> instr(new txReturn());
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
aState.closeInstructionContainer();
return NS_OK;
}
nsresult
txFnStartEmbed(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
if (!aState.handleEmbeddedSheet()) {
return NS_OK;
}
if (aNamespaceID != kNameSpaceID_XSLT ||
(aLocalName != txXSLTAtoms::stylesheet &&
aLocalName != txXSLTAtoms::transform)) {
return NS_ERROR_XSLT_PARSE_FAILURE;
}
return txFnStartStylesheet(aNamespaceID, aLocalName, aPrefix,
aAttributes, aAttrCount, aState);
}
nsresult
txFnEndEmbed(txStylesheetCompilerState& aState)
{
if (!aState.handleEmbeddedSheet()) {
return NS_OK;
}
nsresult rv = txFnEndStylesheet(aState);
aState.doneEmbedding();
return rv;
}
/**
* Top handlers
*/
nsresult
txFnStartOtherTop(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
if (aNamespaceID == kNameSpaceID_None) {
return NS_ERROR_XSLT_PARSE_FAILURE;
}
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndOtherTop(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
// xsl:attribute-set
nsresult
txFnStartAttributeSet(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txAttributeSetItem> attrSet(new txAttributeSetItem(name));
NS_ENSURE_TRUE(attrSet, NS_ERROR_OUT_OF_MEMORY);
aState.openInstructionContainer(attrSet);
rv = aState.addToplevelItem(attrSet);
NS_ENSURE_SUCCESS(rv, rv);
attrSet.forget();
rv = parseUseAttrSets(aAttributes, aAttrCount, PR_FALSE, aState);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxAttributeSetHandler);
}
nsresult
txFnEndAttributeSet(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
nsAutoPtr<txInstruction> instr(new txReturn());
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
aState.closeInstructionContainer();
return NS_OK;
}
// xsl:decimal-format
nsresult
txFnStartDecimalFormat(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_FALSE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txDecimalFormat> format(new txDecimalFormat);
NS_ENSURE_TRUE(format, NS_ERROR_OUT_OF_MEMORY);
rv = getCharAttr(aAttributes, aAttrCount, txXSLTAtoms::decimalSeparator,
PR_FALSE, aState, format->mDecimalSeparator);
NS_ENSURE_SUCCESS(rv, rv);
rv = getCharAttr(aAttributes, aAttrCount, txXSLTAtoms::groupingSeparator,
PR_FALSE, aState, format->mGroupingSeparator);
NS_ENSURE_SUCCESS(rv, rv);
txStylesheetAttr* attr = nsnull;
rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::infinity, PR_FALSE, &attr);
NS_ENSURE_SUCCESS(rv, rv);
if (attr) {
format->mInfinity = attr->mValue;
}
rv = getCharAttr(aAttributes, aAttrCount, txXSLTAtoms::minusSign,
PR_FALSE, aState, format->mMinusSign);
NS_ENSURE_SUCCESS(rv, rv);
rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::NaN, PR_FALSE, &attr);
NS_ENSURE_SUCCESS(rv, rv);
if (attr) {
format->mNaN = attr->mValue;
}
rv = getCharAttr(aAttributes, aAttrCount, txXSLTAtoms::percent,
PR_FALSE, aState, format->mPercent);
NS_ENSURE_SUCCESS(rv, rv);
rv = getCharAttr(aAttributes, aAttrCount, txXSLTAtoms::perMille,
PR_FALSE, aState, format->mPerMille);
NS_ENSURE_SUCCESS(rv, rv);
rv = getCharAttr(aAttributes, aAttrCount, txXSLTAtoms::zeroDigit,
PR_FALSE, aState, format->mZeroDigit);
NS_ENSURE_SUCCESS(rv, rv);
rv = getCharAttr(aAttributes, aAttrCount, txXSLTAtoms::digit,
PR_FALSE, aState, format->mDigit);
NS_ENSURE_SUCCESS(rv, rv);
rv = getCharAttr(aAttributes, aAttrCount, txXSLTAtoms::patternSeparator,
PR_FALSE, aState, format->mPatternSeparator);
NS_ENSURE_SUCCESS(rv, rv);
rv = aState.mStylesheet->addDecimalFormat(name, format);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndDecimalFormat(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
// xsl:import
nsresult
txFnStartImport(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsAutoPtr<txImportItem> import(new txImportItem);
NS_ENSURE_TRUE(import, NS_ERROR_OUT_OF_MEMORY);
import->mFrame = new txStylesheet::ImportFrame;
NS_ENSURE_TRUE(import->mFrame, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addToplevelItem(import);
NS_ENSURE_SUCCESS(rv, rv);
txImportItem* importPtr = import.forget();
txStylesheetAttr* attr = nsnull;
rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::href, PR_TRUE, &attr);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString absUri;
URIUtils::resolveHref(attr->mValue, aState.mElementContext->mBaseURI,
absUri);
rv = aState.loadImportedStylesheet(absUri, importPtr->mFrame);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndImport(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
// xsl:include
nsresult
txFnStartInclude(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::href, PR_TRUE, &attr);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString absUri;
URIUtils::resolveHref(attr->mValue, aState.mElementContext->mBaseURI,
absUri);
rv = aState.loadIncludedStylesheet(absUri);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndInclude(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
// xsl:key
nsresult
txFnStartKey(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txPattern> match;
rv = getPatternAttr(aAttributes, aAttrCount, txXSLTAtoms::match, PR_TRUE,
aState, match);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> use;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::use, PR_TRUE,
aState, use);
NS_ENSURE_SUCCESS(rv, rv);
rv = aState.mStylesheet->addKey(name, match, use);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndKey(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
// xsl:output
nsresult
txFnStartOutput(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<txOutputItem> item(new txOutputItem);
NS_ENSURE_TRUE(item, NS_ERROR_OUT_OF_MEMORY);
txExpandedName methodExpName;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::method, PR_FALSE,
aState, methodExpName);
NS_ENSURE_SUCCESS(rv, rv);
if (!methodExpName.isNull()) {
if (methodExpName.mNamespaceID != kNameSpaceID_None) {
// The spec doesn't say what to do here so we'll just ignore the
// value. We could possibly warn.
}
else if (methodExpName.mLocalName == txXSLTAtoms::html) {
item->mFormat.mMethod = eHTMLOutput;
}
else if (methodExpName.mLocalName == txXSLTAtoms::text) {
item->mFormat.mMethod = eTextOutput;
}
else if (methodExpName.mLocalName == txXSLTAtoms::xml) {
item->mFormat.mMethod = eXMLOutput;
}
else {
return NS_ERROR_XSLT_PARSE_FAILURE;
}
}
txStylesheetAttr* attr = nsnull;
getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::version, PR_FALSE, &attr);
if (attr) {
item->mFormat.mVersion = attr->mValue;
}
getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::encoding, PR_FALSE, &attr);
if (attr) {
item->mFormat.mEncoding = attr->mValue;
}
rv = getYesNoAttr(aAttributes, aAttrCount,
txXSLTAtoms::omitXmlDeclaration, PR_FALSE, aState,
item->mFormat.mOmitXMLDeclaration);
NS_ENSURE_SUCCESS(rv, rv);
rv = getYesNoAttr(aAttributes, aAttrCount,
txXSLTAtoms::standalone, PR_FALSE, aState,
item->mFormat.mStandalone);
NS_ENSURE_SUCCESS(rv, rv);
getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::doctypePublic, PR_FALSE, &attr);
if (attr) {
item->mFormat.mPublicId = attr->mValue;
}
getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::doctypeSystem, PR_FALSE, &attr);
if (attr) {
item->mFormat.mSystemId = attr->mValue;
}
getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::cdataSectionElements, PR_FALSE, &attr);
if (attr) {
txTokenizer tokens(attr->mValue);
while (tokens.hasMoreTokens()) {
txExpandedName* qname = new txExpandedName();
NS_ENSURE_TRUE(qname, NS_ERROR_OUT_OF_MEMORY);
rv = qname->init(tokens.nextToken(),
aState.mElementContext->mMappings, PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
rv = item->mFormat.mCDATASectionElements.add(qname);
NS_ENSURE_SUCCESS(rv, rv);
}
}
rv = getYesNoAttr(aAttributes, aAttrCount,
txXSLTAtoms::indent, PR_FALSE, aState,
item->mFormat.mIndent);
NS_ENSURE_SUCCESS(rv, rv);
getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::mediaType, PR_FALSE, &attr);
if (attr) {
item->mFormat.mMediaType = attr->mValue;
}
rv = aState.addToplevelItem(item);
NS_ENSURE_SUCCESS(rv, rv);
item.forget();
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndOutput(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
// xsl:strip-space/xsl:preserve-space
nsresult
txFnStartStripSpace(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
txStylesheetAttr* attr = nsnull;
nsresult rv = getStyleAttr(aAttributes, aAttrCount, kNameSpaceID_None,
txXSLTAtoms::elements, PR_TRUE, &attr);
NS_ENSURE_SUCCESS(rv, rv);
PRBool strip = aLocalName == txXSLTAtoms::stripSpace;
nsAutoPtr<txStripSpaceItem> stripItem(new txStripSpaceItem);
NS_ENSURE_TRUE(stripItem, NS_ERROR_OUT_OF_MEMORY);
txTokenizer tokenizer(attr->mValue);
while (tokenizer.hasMoreTokens()) {
const nsASingleFragmentString& name = tokenizer.nextToken();
PRInt32 ns = kNameSpaceID_None;
nsCOMPtr<nsIAtom> prefix, localName;
rv = XMLUtils::splitQName(name, getter_AddRefs(prefix),
getter_AddRefs(localName));
if (NS_FAILED(rv)) {
// check for "*" or "prefix:*"
PRUint32 length = name.Length();
const PRUnichar* c;
name.BeginReading(c);
if (length == 2 || c[length-1] != '*') {
// these can't work
return NS_ERROR_XSLT_PARSE_FAILURE;
}
if (length > 1) {
// Check for a valid prefix, that is, the returned prefix
// should be empty and the real prefix is returned in
// localName.
if (c[length-2] != ':') {
return NS_ERROR_XSLT_PARSE_FAILURE;
}
rv = XMLUtils::splitQName(Substring(name, 0, length-2),
getter_AddRefs(prefix),
getter_AddRefs(localName));
if (NS_FAILED(rv) || prefix) {
// bad chars or two ':'
return NS_ERROR_XSLT_PARSE_FAILURE;
}
prefix = localName;
}
localName = txXPathAtoms::_asterix;
}
if (prefix) {
ns = aState.mElementContext->mMappings->lookupNamespace(prefix);
NS_ENSURE_TRUE(ns != kNameSpaceID_Unknown, NS_ERROR_FAILURE);
}
nsAutoPtr<txStripSpaceTest> sst(new txStripSpaceTest(prefix, localName,
ns, strip));
NS_ENSURE_TRUE(sst, NS_ERROR_OUT_OF_MEMORY);
rv = stripItem->addStripSpaceTest(sst);
NS_ENSURE_SUCCESS(rv, rv);
sst.forget();
}
rv = aState.addToplevelItem(stripItem);
NS_ENSURE_SUCCESS(rv, rv);
stripItem.forget();
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndStripSpace(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
// xsl:template
nsresult
txFnStartTemplate(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_FALSE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
txExpandedName mode;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::mode, PR_FALSE,
aState, mode);
NS_ENSURE_SUCCESS(rv, rv);
double prio = Double::NaN;
rv = getNumberAttr(aAttributes, aAttrCount, txXSLTAtoms::priority,
PR_FALSE, aState, prio);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txPattern> match;
rv = getPatternAttr(aAttributes, aAttrCount, txXSLTAtoms::match,
name.isNull(), aState, match);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txTemplateItem> templ(new txTemplateItem(match, name, mode, prio));
NS_ENSURE_TRUE(templ, NS_ERROR_OUT_OF_MEMORY);
aState.openInstructionContainer(templ);
rv = aState.addToplevelItem(templ);
NS_ENSURE_SUCCESS(rv, rv);
templ.forget();
return aState.pushHandlerTable(gTxParamHandler);
}
nsresult
txFnEndTemplate(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
nsAutoPtr<txInstruction> instr(new txReturn());
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
aState.closeInstructionContainer();
return NS_OK;
}
// xsl:variable, xsl:param
nsresult
txFnStartTopVariable(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_FALSE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txVariableItem> var(
new txVariableItem(name, select, aLocalName == txXSLTAtoms::param));
NS_ENSURE_TRUE(var, NS_ERROR_OUT_OF_MEMORY);
aState.openInstructionContainer(var);
rv = aState.pushPtr(var);
NS_ENSURE_SUCCESS(rv, rv);
if (var->mValue) {
// XXX should be gTxErrorHandler?
rv = aState.pushHandlerTable(gTxIgnoreHandler);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
rv = aState.pushHandlerTable(gTxTopVariableHandler);
NS_ENSURE_SUCCESS(rv, rv);
}
rv = aState.addToplevelItem(var);
NS_ENSURE_SUCCESS(rv, rv);
var.forget();
return NS_OK;
}
nsresult
txFnEndTopVariable(txStylesheetCompilerState& aState)
{
txHandlerTable* prev = aState.mHandlerTable;
aState.popHandlerTable();
txVariableItem* var = NS_STATIC_CAST(txVariableItem*, aState.popPtr());
if (prev == gTxTopVariableHandler) {
// No children were found.
NS_ASSERTION(!var->mValue,
"There shouldn't be a select-expression here");
var->mValue = new txLiteralExpr(EmptyString());
NS_ENSURE_TRUE(var->mValue, NS_ERROR_OUT_OF_MEMORY);
}
else if (!var->mValue) {
// If we don't have a select-expression there mush be children.
nsAutoPtr<txInstruction> instr(new txReturn());
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
}
aState.closeInstructionContainer();
return NS_OK;
}
nsresult
txFnStartElementStartTopVar(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
aState.mHandlerTable = gTxTemplateHandler;
return NS_XSLT_GET_NEW_HANDLER;
}
nsresult
txFnTextStartTopVar(const nsAString& aStr, txStylesheetCompilerState& aState)
{
TX_RETURN_IF_WHITESPACE(aStr, aState);
aState.mHandlerTable = gTxTemplateHandler;
return NS_XSLT_GET_NEW_HANDLER;
}
/**
* Template Handlers
*/
/*
LRE
txStartLREElement
txInsertAttrSet one for each qname in xsl:use-attribute-sets
txLREAttribute one for each attribute
[children]
txEndElement
*/
nsresult
txFnStartLRE(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<txInstruction> instr(new txStartLREElement(aNamespaceID,
aLocalName, aPrefix));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
rv = parseUseAttrSets(aAttributes, aAttrCount, PR_TRUE, aState);
NS_ENSURE_SUCCESS(rv, rv);
txStylesheetAttr* attr = nsnull;
PRInt32 i;
for (i = 0; i < aAttrCount; ++i) {
attr = aAttributes + i;
if (attr->mNamespaceID == kNameSpaceID_XSLT) {
continue;
}
nsAutoPtr<Expr> avt(
txExprParser::createAttributeValueTemplate(attr->mValue, &aState));
NS_ENSURE_TRUE(avt, NS_ERROR_XPATH_PARSE_FAILURE);
instr = new txLREAttribute(attr->mNamespaceID, attr->mLocalName,
attr->mPrefix, avt);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
nsresult
txFnEndLRE(txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txEndElement);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
"LRE text"
txText
*/
nsresult
txFnText(const nsAString& aStr, txStylesheetCompilerState& aState)
{
TX_RETURN_IF_WHITESPACE(aStr, aState);
nsAutoPtr<txInstruction> instr(new txText(aStr, MB_FALSE));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:apply-imports
txApplyImportsStart
txApplyImportsEnd
*/
nsresult
txFnStartApplyImports(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<txInstruction> instr(new txApplyImportsStart);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txApplyImportsEnd;
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndApplyImports(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
/*
xsl:apply-templates
txPushParams
[params]
txPushNewContext -+ (holds <xsl:sort>s)
txApplyTemplate <-+ |
txLoopNodeSet -+ |
txPopParams <-+
*/
nsresult
txFnStartApplyTemplates(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<txInstruction> instr(new txPushParams);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
txExpandedName mode;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::mode, PR_FALSE,
aState, mode);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txApplyTemplates(mode);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushObject(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr.forget();
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_FALSE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
if (!select) {
nsAutoPtr<txNodeTest> nt(
new txNodeTypeTest(txNodeTypeTest::NODE_TYPE));
NS_ENSURE_TRUE(nt, NS_ERROR_OUT_OF_MEMORY);
select = new LocationStep(nt, LocationStep::CHILD_AXIS);
NS_ENSURE_TRUE(select, NS_ERROR_OUT_OF_MEMORY);
}
nsAutoPtr<txPushNewContext> pushcontext(new txPushNewContext(select));
NS_ENSURE_TRUE(pushcontext, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushSorter(pushcontext);
NS_ENSURE_SUCCESS(rv, rv);
rv = aState.pushObject(pushcontext);
NS_ENSURE_SUCCESS(rv, rv);
pushcontext.forget();
return aState.pushHandlerTable(gTxApplyTemplatesHandler);
}
nsresult
txFnEndApplyTemplates(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
txPushNewContext* pushcontext =
NS_STATIC_CAST(txPushNewContext*, aState.popObject());
nsAutoPtr<txInstruction> instr(pushcontext); // txPushNewContext
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
aState.popSorter();
instr = NS_STATIC_CAST(txInstruction*, aState.popObject()); // txApplyTemplates
nsAutoPtr<txLoopNodeSet> loop(new txLoopNodeSet(instr));
NS_ENSURE_TRUE(loop, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr = loop.forget();
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txPopParams;
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
pushcontext->mBailTarget = instr;
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:attribute
txPushStringHandler
[children]
txAttribute
*/
nsresult
txFnStartAttribute(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<txInstruction> instr(new txPushStringHandler(PR_TRUE));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> name;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> nspace;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::_namespace, PR_FALSE,
aState, nspace);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txAttribute(name, nspace, aState.mElementContext->mMappings);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushObject(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr.forget();
// We need to push the template-handler since the current might be
// the attributeset-handler
return aState.pushHandlerTable(gTxTemplateHandler);
}
nsresult
txFnEndAttribute(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
nsAutoPtr<txInstruction> instr(NS_STATIC_CAST(txInstruction*,
aState.popObject()));
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:call-template
txPushParams
[params]
txCallTemplate
txPopParams
*/
nsresult
txFnStartCallTemplate(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<txInstruction> instr(new txPushParams);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txCallTemplate(name);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushObject(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr.forget();
return aState.pushHandlerTable(gTxCallTemplateHandler);
}
nsresult
txFnEndCallTemplate(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
// txCallTemplate
nsAutoPtr<txInstruction> instr(NS_STATIC_CAST(txInstruction*,
aState.popObject()));
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txPopParams;
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:choose
txCondotionalGoto --+ \
[children] | | one for each xsl:when
txGoTo --+ | /
| |
txCondotionalGoto | <-+ --+
[children] | |
txGoTo --+ |
| |
[children] | <-+ for the xsl:otherwise, if there is one
<-+
*/
nsresult
txFnStartChoose(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = aState.pushChooseGotoList();
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxChooseHandler);
}
nsresult
txFnEndChoose(txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
aState.popHandlerTable();
txListIterator iter(aState.mChooseGotoList);
txGoTo* gotoinstr;
while ((gotoinstr = NS_STATIC_CAST(txGoTo*, iter.next()))) {
rv = aState.addGotoTarget(&gotoinstr->mTarget);
NS_ENSURE_SUCCESS(rv, rv);
}
aState.popChooseGotoList();
return NS_OK;
}
/*
xsl:comment
txPushStringHandler
[children]
txComment
*/
nsresult
txFnStartComment(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txPushStringHandler(PR_TRUE));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
txFnEndComment(txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txComment);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:copy
txCopy -+
txInsertAttrSet | one for each qname in use-attribute-sets
[children] |
txEndElement |
<-+
*/
nsresult
txFnStartCopy(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsAutoPtr<txCopy> copy(new txCopy);
NS_ENSURE_TRUE(copy, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.pushPtr(copy);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(copy.forget());
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
rv = parseUseAttrSets(aAttributes, aAttrCount, PR_FALSE, aState);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
txFnEndCopy(txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txEndElement);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
txCopy* copy = NS_STATIC_CAST(txCopy*, aState.popPtr());
rv = aState.addGotoTarget(&copy->mBailTarget);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:copy-of
txCopyOf
*/
nsresult
txFnStartCopyOf(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_TRUE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(new txCopyOf(select));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndCopyOf(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
/*
xsl:element
txStartElement
txInsertAttrSet one for each qname in use-attribute-sets
[children]
txEndElement
*/
nsresult
txFnStartElement(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<Expr> name;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> nspace;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::_namespace, PR_FALSE,
aState, nspace);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(
new txStartElement(name, nspace, aState.mElementContext->mMappings));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
rv = parseUseAttrSets(aAttributes, aAttrCount, PR_FALSE, aState);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
txFnEndElement(txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txEndElement);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:fallback
[children]
*/
nsresult
txFnStartFallback(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
aState.mSearchingForFallback = PR_FALSE;
return aState.pushHandlerTable(gTxTemplateHandler);
}
nsresult
txFnEndFallback(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
NS_ASSERTION(!aState.mSearchingForFallback,
"bad nesting of unknown-instruction and fallback handlers");
return NS_OK;
}
/*
xsl:for-each
txPushNewContext -+ (holds <xsl:sort>s)
txPushNullTemplateRule <-+ |
[children] | |
txLoopNodeSet -+ |
<-+
*/
nsresult
txFnStartForEach(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_TRUE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txPushNewContext> pushcontext(new txPushNewContext(select));
NS_ENSURE_TRUE(pushcontext, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushPtr(pushcontext);
NS_ENSURE_SUCCESS(rv, rv);
rv = aState.pushSorter(pushcontext);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(pushcontext.forget());
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txPushNullTemplateRule;
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushPtr(instr);
NS_ENSURE_SUCCESS(rv, rv);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxForEachHandler);
}
nsresult
txFnEndForEach(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
// This is a txPushNullTemplateRule
txInstruction* pnullrule =
NS_STATIC_CAST(txInstruction*, aState.popPtr());
nsAutoPtr<txInstruction> instr(new txLoopNodeSet(pnullrule));
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
aState.popSorter();
txPushNewContext* pushcontext =
NS_STATIC_CAST(txPushNewContext*, aState.popPtr());
aState.addGotoTarget(&pushcontext->mBailTarget);
return NS_OK;
}
nsresult
txFnStartElementContinueTemplate(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
aState.mHandlerTable = gTxTemplateHandler;
return NS_XSLT_GET_NEW_HANDLER;
}
nsresult
txFnTextContinueTemplate(const nsAString& aStr,
txStylesheetCompilerState& aState)
{
TX_RETURN_IF_WHITESPACE(aStr, aState);
aState.mHandlerTable = gTxTemplateHandler;
return NS_XSLT_GET_NEW_HANDLER;
}
/*
xsl:if
txConditionalGoto -+
[children] |
<-+
*/
nsresult
txFnStartIf(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<Expr> test;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::test, PR_TRUE,
aState, test);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txConditionalGoto> condGoto(new txConditionalGoto(test, nsnull));
NS_ENSURE_TRUE(condGoto, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushPtr(condGoto);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(condGoto.forget());
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
txFnEndIf(txStylesheetCompilerState& aState)
{
txConditionalGoto* condGoto =
NS_STATIC_CAST(txConditionalGoto*, aState.popPtr());
return aState.addGotoTarget(&condGoto->mTarget);
}
/*
xsl:message
txPushStringHandler
[children]
txMessage
*/
nsresult
txFnStartMessage(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txPushStringHandler(PR_FALSE));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
txThreeState term;
rv = getYesNoAttr(aAttributes, aAttrCount, txXSLTAtoms::terminate,
PR_FALSE, aState, term);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txMessage(term == eTrue);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushObject(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr.forget();
return NS_OK;
}
nsresult
txFnEndMessage(txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(NS_STATIC_CAST(txInstruction*,
aState.popObject()));
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:number
txNumber
*/
nsresult
txFnStartNumber(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsCOMPtr<nsIAtom> levelAtom;
rv = getAtomAttr(aAttributes, aAttrCount, txXSLTAtoms::level, PR_FALSE,
aState, getter_AddRefs(levelAtom));
NS_ENSURE_SUCCESS(rv, rv);
txXSLTNumber::LevelType level = txXSLTNumber::eLevelSingle;
if (levelAtom == txXSLTAtoms::multiple) {
level = txXSLTNumber::eLevelMultiple;
}
else if (levelAtom == txXSLTAtoms::any) {
level = txXSLTNumber::eLevelAny;
}
else if (levelAtom && levelAtom != txXSLTAtoms::single && !aState.fcp()) {
return NS_ERROR_XSLT_PARSE_FAILURE;
}
nsAutoPtr<txPattern> count;
rv = getPatternAttr(aAttributes, aAttrCount, txXSLTAtoms::count, PR_FALSE,
aState, count);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txPattern> from;
rv = getPatternAttr(aAttributes, aAttrCount, txXSLTAtoms::from, PR_FALSE,
aState, from);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> value;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::value, PR_FALSE,
aState, value);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> format;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::format, PR_FALSE,
aState, format);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> groupingSeparator;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::groupingSeparator,
PR_FALSE, aState, groupingSeparator);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> groupingSize;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::groupingSize,
PR_FALSE, aState, groupingSize);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(new txNumber(level, count, from, value,
format,groupingSeparator,
groupingSize));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndNumber(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
/*
xsl:otherwise
(see xsl:choose)
*/
nsresult
txFnStartOtherwise(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
return aState.pushHandlerTable(gTxTemplateHandler);
}
nsresult
txFnEndOtherwise(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
aState.mHandlerTable = gTxIgnoreHandler; // XXX should be gTxErrorHandler
return NS_OK;
}
/*
xsl:param
txCheckParam --+
txPushRTFHandler | --- (for RTF-parameters)
[children] | /
txSetVariable |
<-+
*/
nsresult
txFnStartParam(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txCheckParam> checkParam(new txCheckParam(name));
NS_ENSURE_SUCCESS(rv, rv);
rv = aState.pushPtr(checkParam);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(checkParam.forget());
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_FALSE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txSetVariable> var(new txSetVariable(name, select));
NS_ENSURE_TRUE(var, NS_ERROR_OUT_OF_MEMORY);
if (var->mValue) {
// XXX should be gTxErrorHandler?
rv = aState.pushHandlerTable(gTxIgnoreHandler);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
rv = aState.pushHandlerTable(gTxVariableHandler);
NS_ENSURE_SUCCESS(rv, rv);
}
rv = aState.pushObject(var);
NS_ENSURE_SUCCESS(rv, rv);
var.forget();
return NS_OK;
}
nsresult
txFnEndParam(txStylesheetCompilerState& aState)
{
nsAutoPtr<txSetVariable> var(NS_STATIC_CAST(txSetVariable*,
aState.popObject()));
txHandlerTable* prev = aState.mHandlerTable;
aState.popHandlerTable();
if (prev == gTxVariableHandler) {
// No children were found.
NS_ASSERTION(!var->mValue,
"There shouldn't be a select-expression here");
var->mValue = new txLiteralExpr(EmptyString());
NS_ENSURE_TRUE(var->mValue, NS_ERROR_OUT_OF_MEMORY);
}
nsresult rv = aState.addVariable(var->mName);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(var.forget());
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
txCheckParam* checkParam = NS_STATIC_CAST(txCheckParam*, aState.popPtr());
aState.addGotoTarget(&checkParam->mBailTarget);
return NS_OK;
}
/*
xsl:processing-instruction
txPushStringHandler
[children]
txProcessingInstruction
*/
nsresult
txFnStartPI(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txPushStringHandler(PR_TRUE));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> name;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
instr = new txProcessingInstruction(name);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushObject(instr);
NS_ENSURE_SUCCESS(rv, rv);
instr.forget();
return NS_OK;
}
nsresult
txFnEndPI(txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(NS_STATIC_CAST(txInstruction*,
aState.popObject()));
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:sort
(no instructions)
*/
nsresult
txFnStartSort(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_FALSE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
if (!select) {
nsAutoPtr<txNodeTest> nt(
new txNodeTypeTest(txNodeTypeTest::NODE_TYPE));
NS_ENSURE_TRUE(nt, NS_ERROR_OUT_OF_MEMORY);
select = new LocationStep(nt, LocationStep::SELF_AXIS);
NS_ENSURE_TRUE(select, NS_ERROR_OUT_OF_MEMORY);
}
nsAutoPtr<Expr> lang;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::lang, PR_FALSE,
aState, lang);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> dataType;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::dataType, PR_FALSE,
aState, dataType);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> order;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::order, PR_FALSE,
aState, order);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> caseOrder;
rv = getAVTAttr(aAttributes, aAttrCount, txXSLTAtoms::caseOrder, PR_FALSE,
aState, caseOrder);
NS_ENSURE_SUCCESS(rv, rv);
rv = aState.mSorter->addSort(select, lang, dataType, order, caseOrder);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndSort(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
/*
xsl:text
[children] (only txText)
*/
nsresult
txFnStartText(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
NS_ASSERTION(!aState.mDOE, "nested d-o-e elements should not happen");
nsresult rv = NS_OK;
txThreeState doe;
rv = getYesNoAttr(aAttributes, aAttrCount,
txXSLTAtoms::disableOutputEscaping, PR_FALSE, aState,
doe);
NS_ENSURE_SUCCESS(rv, rv);
aState.mDOE = doe == eTrue;
return aState.pushHandlerTable(gTxTextHandler);
}
nsresult
txFnEndText(txStylesheetCompilerState& aState)
{
aState.mDOE = MB_FALSE;
aState.popHandlerTable();
return NS_OK;
}
nsresult
txFnTextText(const nsAString& aStr, txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txText(aStr, aState.mDOE));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:value-of
txValueOf
*/
nsresult
txFnStartValueOf(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txThreeState doe;
rv = getYesNoAttr(aAttributes, aAttrCount,
txXSLTAtoms::disableOutputEscaping, PR_FALSE, aState,
doe);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_TRUE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(new txValueOf(select, doe == eTrue));
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxIgnoreHandler);
}
nsresult
txFnEndValueOf(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
return NS_OK;
}
/*
xsl:variable
txPushRTFHandler --- (for RTF-parameters)
[children] /
txSetVariable
*/
nsresult
txFnStartVariable(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_FALSE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txSetVariable> var(new txSetVariable(name, select));
NS_ENSURE_TRUE(var, NS_ERROR_OUT_OF_MEMORY);
if (var->mValue) {
// XXX should be gTxErrorHandler?
rv = aState.pushHandlerTable(gTxIgnoreHandler);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
rv = aState.pushHandlerTable(gTxVariableHandler);
NS_ENSURE_SUCCESS(rv, rv);
}
rv = aState.pushObject(var);
NS_ENSURE_SUCCESS(rv, rv);
var.forget();
return NS_OK;
}
nsresult
txFnEndVariable(txStylesheetCompilerState& aState)
{
nsAutoPtr<txSetVariable> var(NS_STATIC_CAST(txSetVariable*,
aState.popObject()));
txHandlerTable* prev = aState.mHandlerTable;
aState.popHandlerTable();
if (prev == gTxVariableHandler) {
// No children were found.
NS_ASSERTION(!var->mValue,
"There shouldn't be a select-expression here");
var->mValue = new txLiteralExpr(EmptyString());
NS_ENSURE_TRUE(var->mValue, NS_ERROR_OUT_OF_MEMORY);
}
nsresult rv = aState.addVariable(var->mName);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(var.forget());
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
txFnStartElementStartRTF(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsAutoPtr<txInstruction> instr(new txPushRTFHandler);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
aState.mHandlerTable = gTxTemplateHandler;
return NS_XSLT_GET_NEW_HANDLER;
}
nsresult
txFnTextStartRTF(const nsAString& aStr, txStylesheetCompilerState& aState)
{
TX_RETURN_IF_WHITESPACE(aStr, aState);
nsAutoPtr<txInstruction> instr(new txPushRTFHandler);
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
aState.mHandlerTable = gTxTemplateHandler;
return NS_XSLT_GET_NEW_HANDLER;
}
/*
xsl:when
(see xsl:choose)
*/
nsresult
txFnStartWhen(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
nsAutoPtr<Expr> test;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::test, PR_TRUE,
aState, test);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txConditionalGoto> condGoto(new txConditionalGoto(test, nsnull));
NS_ENSURE_TRUE(condGoto, NS_ERROR_OUT_OF_MEMORY);
rv = aState.pushPtr(condGoto);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(condGoto.forget());
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return aState.pushHandlerTable(gTxTemplateHandler);
}
nsresult
txFnEndWhen(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
nsAutoPtr<txGoTo> gotoinstr(new txGoTo(nsnull));
NS_ENSURE_TRUE(gotoinstr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.mChooseGotoList->add(gotoinstr);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txInstruction> instr(gotoinstr.forget());
rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
txConditionalGoto* condGoto =
NS_STATIC_CAST(txConditionalGoto*, aState.popPtr());
rv = aState.addGotoTarget(&condGoto->mTarget);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
xsl:with-param
txPushRTFHandler -- for RTF-parameters
[children] /
txSetParam
*/
nsresult
txFnStartWithParam(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
nsresult rv = NS_OK;
txExpandedName name;
rv = getQNameAttr(aAttributes, aAttrCount, txXSLTAtoms::name, PR_TRUE,
aState, name);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<Expr> select;
rv = getExprAttr(aAttributes, aAttrCount, txXSLTAtoms::select, PR_FALSE,
aState, select);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoPtr<txSetParam> var(new txSetParam(name, select));
NS_ENSURE_TRUE(var, NS_ERROR_OUT_OF_MEMORY);
if (var->mValue) {
// XXX should be gTxErrorHandler?
rv = aState.pushHandlerTable(gTxIgnoreHandler);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
rv = aState.pushHandlerTable(gTxVariableHandler);
NS_ENSURE_SUCCESS(rv, rv);
}
rv = aState.pushObject(var);
NS_ENSURE_SUCCESS(rv, rv);
var.forget();
return NS_OK;
}
nsresult
txFnEndWithParam(txStylesheetCompilerState& aState)
{
nsAutoPtr<txSetParam> var(NS_STATIC_CAST(txSetParam*, aState.popObject()));
txHandlerTable* prev = aState.mHandlerTable;
aState.popHandlerTable();
if (prev == gTxVariableHandler) {
// No children were found.
NS_ASSERTION(!var->mValue,
"There shouldn't be a select-expression here");
var->mValue = new txLiteralExpr(EmptyString());
NS_ENSURE_TRUE(var->mValue, NS_ERROR_OUT_OF_MEMORY);
}
nsAutoPtr<txInstruction> instr(var.forget());
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
/*
Unknown instruction
[fallbacks] if one or more xsl:fallbacks are found
or
txErrorInstruction otherwise
*/
nsresult
txFnStartUnknownInstruction(PRInt32 aNamespaceID,
nsIAtom* aLocalName,
nsIAtom* aPrefix,
txStylesheetAttr* aAttributes,
PRInt32 aAttrCount,
txStylesheetCompilerState& aState)
{
NS_ASSERTION(!aState.mSearchingForFallback,
"bad nesting of unknown-instruction and fallback handlers");
aState.mSearchingForFallback = PR_TRUE;
return aState.pushHandlerTable(gTxFallbackHandler);
}
nsresult
txFnEndUnknownInstruction(txStylesheetCompilerState& aState)
{
aState.popHandlerTable();
if (aState.mSearchingForFallback) {
nsAutoPtr<txInstruction> instr(new txErrorInstruction());
NS_ENSURE_TRUE(instr, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = aState.addInstruction(instr);
NS_ENSURE_SUCCESS(rv, rv);
}
aState.mSearchingForFallback = PR_FALSE;
return NS_OK;
}
/**
* Table Datas
*/
struct txHandlerTableData {
txElementHandler mOtherHandler;
txElementHandler mLREHandler;
HandleTextFn mTextHandler;
};
const txHandlerTableData gTxIgnoreTableData = {
// Other
{ 0, 0, txFnStartElementIgnore, txFnEndElementIgnore },
// LRE
{ 0, 0, txFnStartElementIgnore, txFnEndElementIgnore },
// Text
txFnTextIgnore
};
const txElementHandler gTxRootElementHandlers[] = {
{ kNameSpaceID_XSLT, "stylesheet", txFnStartStylesheet, txFnEndStylesheet },
{ kNameSpaceID_XSLT, "transform", txFnStartStylesheet, txFnEndStylesheet }
};
const txHandlerTableData gTxRootTableData = {
// Other
{ 0, 0, txFnStartElementError, txFnEndElementError },
// LRE
{ 0, 0, txFnStartLREStylesheet, txFnEndLREStylesheet },
// Text
txFnTextError
};
const txHandlerTableData gTxEmbedTableData = {
// Other
{ 0, 0, txFnStartEmbed, txFnEndEmbed },
// LRE
{ 0, 0, txFnStartElementIgnore, txFnEndElementIgnore },
// Text
txFnTextIgnore
};
const txElementHandler gTxTopElementHandlers[] = {
{ kNameSpaceID_XSLT, "attribute-set", txFnStartAttributeSet, txFnEndAttributeSet },
{ kNameSpaceID_XSLT, "decimal-format", txFnStartDecimalFormat, txFnEndDecimalFormat },
{ kNameSpaceID_XSLT, "include", txFnStartInclude, txFnEndInclude },
{ kNameSpaceID_XSLT, "key", txFnStartKey, txFnEndKey },
{ kNameSpaceID_XSLT, "output", txFnStartOutput, txFnEndOutput },
{ kNameSpaceID_XSLT, "param", txFnStartTopVariable, txFnEndTopVariable },
{ kNameSpaceID_XSLT, "preserve-space", txFnStartStripSpace, txFnEndStripSpace },
{ kNameSpaceID_XSLT, "strip-space", txFnStartStripSpace, txFnEndStripSpace },
{ kNameSpaceID_XSLT, "template", txFnStartTemplate, txFnEndTemplate },
{ kNameSpaceID_XSLT, "variable", txFnStartTopVariable, txFnEndTopVariable }
};
const txHandlerTableData gTxTopTableData = {
// Other
{ 0, 0, txFnStartOtherTop, txFnEndOtherTop },
// LRE
{ 0, 0, txFnStartOtherTop, txFnEndOtherTop },
// Text
txFnTextIgnore
};
const txElementHandler gTxTemplateElementHandlers[] = {
{ kNameSpaceID_XSLT, "apply-imports", txFnStartApplyImports, txFnEndApplyImports },
{ kNameSpaceID_XSLT, "apply-templates", txFnStartApplyTemplates, txFnEndApplyTemplates },
{ kNameSpaceID_XSLT, "attribute", txFnStartAttribute, txFnEndAttribute },
{ kNameSpaceID_XSLT, "call-template", txFnStartCallTemplate, txFnEndCallTemplate },
{ kNameSpaceID_XSLT, "choose", txFnStartChoose, txFnEndChoose },
{ kNameSpaceID_XSLT, "comment", txFnStartComment, txFnEndComment },
{ kNameSpaceID_XSLT, "copy", txFnStartCopy, txFnEndCopy },
{ kNameSpaceID_XSLT, "copy-of", txFnStartCopyOf, txFnEndCopyOf },
{ kNameSpaceID_XSLT, "element", txFnStartElement, txFnEndElement },
{ kNameSpaceID_XSLT, "fallback", txFnStartElementSetIgnore, txFnEndElementSetIgnore },
{ kNameSpaceID_XSLT, "for-each", txFnStartForEach, txFnEndForEach },
{ kNameSpaceID_XSLT, "if", txFnStartIf, txFnEndIf },
{ kNameSpaceID_XSLT, "message", txFnStartMessage, txFnEndMessage },
{ kNameSpaceID_XSLT, "number", txFnStartNumber, txFnEndNumber },
{ kNameSpaceID_XSLT, "processing-instruction", txFnStartPI, txFnEndPI },
{ kNameSpaceID_XSLT, "text", txFnStartText, txFnEndText },
{ kNameSpaceID_XSLT, "value-of", txFnStartValueOf, txFnEndValueOf },
{ kNameSpaceID_XSLT, "variable", txFnStartVariable, txFnEndVariable }
};
const txHandlerTableData gTxTemplateTableData = {
// Other
{ 0, 0, txFnStartUnknownInstruction, txFnEndUnknownInstruction },
// LRE
{ 0, 0, txFnStartLRE, txFnEndLRE },
// Text
txFnText
};
const txHandlerTableData gTxTextTableData = {
// Other
{ 0, 0, txFnStartElementError, txFnEndElementError },
// LRE
{ 0, 0, txFnStartElementError, txFnEndElementError },
// Text
txFnTextText
};
const txElementHandler gTxApplyTemplatesElementHandlers[] = {
{ kNameSpaceID_XSLT, "sort", txFnStartSort, txFnEndSort },
{ kNameSpaceID_XSLT, "with-param", txFnStartWithParam, txFnEndWithParam }
};
const txHandlerTableData gTxApplyTemplatesTableData = {
// Other
{ 0, 0, txFnStartElementSetIgnore, txFnEndElementSetIgnore }, // should this be error?
// LRE
{ 0, 0, txFnStartElementSetIgnore, txFnEndElementSetIgnore },
// Text
txFnTextIgnore
};
const txElementHandler gTxCallTemplateElementHandlers[] = {
{ kNameSpaceID_XSLT, "with-param", txFnStartWithParam, txFnEndWithParam }
};
const txHandlerTableData gTxCallTemplateTableData = {
// Other
{ 0, 0, txFnStartElementSetIgnore, txFnEndElementSetIgnore }, // should this be error?
// LRE
{ 0, 0, txFnStartElementSetIgnore, txFnEndElementSetIgnore },
// Text
txFnTextIgnore
};
const txHandlerTableData gTxVariableTableData = {
// Other
{ 0, 0, txFnStartElementStartRTF, 0 },
// LRE
{ 0, 0, txFnStartElementStartRTF, 0 },
// Text
txFnTextStartRTF
};
const txElementHandler gTxForEachElementHandlers[] = {
{ kNameSpaceID_XSLT, "sort", txFnStartSort, txFnEndSort }
};
const txHandlerTableData gTxForEachTableData = {
// Other
{ 0, 0, txFnStartElementContinueTemplate, 0 },
// LRE
{ 0, 0, txFnStartElementContinueTemplate, 0 },
// Text
txFnTextContinueTemplate
};
const txHandlerTableData gTxTopVariableTableData = {
// Other
{ 0, 0, txFnStartElementStartTopVar, 0 },
// LRE
{ 0, 0, txFnStartElementStartTopVar, 0 },
// Text
txFnTextStartTopVar
};
const txElementHandler gTxChooseElementHandlers[] = {
{ kNameSpaceID_XSLT, "otherwise", txFnStartOtherwise, txFnEndOtherwise },
{ kNameSpaceID_XSLT, "when", txFnStartWhen, txFnEndWhen }
};
const txHandlerTableData gTxChooseTableData = {
// Other
{ 0, 0, txFnStartElementError, 0 },
// LRE
{ 0, 0, txFnStartElementError, 0 },
// Text
txFnTextError
};
const txElementHandler gTxParamElementHandlers[] = {
{ kNameSpaceID_XSLT, "param", txFnStartParam, txFnEndParam }
};
const txHandlerTableData gTxParamTableData = {
// Other
{ 0, 0, txFnStartElementContinueTemplate, 0 },
// LRE
{ 0, 0, txFnStartElementContinueTemplate, 0 },
// Text
txFnTextContinueTemplate
};
const txElementHandler gTxImportElementHandlers[] = {
{ kNameSpaceID_XSLT, "import", txFnStartImport, txFnEndImport }
};
const txHandlerTableData gTxImportTableData = {
// Other
{ 0, 0, txFnStartElementContinueTopLevel, 0 },
// LRE
{ 0, 0, txFnStartOtherTop, txFnEndOtherTop }, // XXX what should we do here?
// Text
txFnTextIgnore // XXX what should we do here?
};
const txElementHandler gTxAttributeSetElementHandlers[] = {
{ kNameSpaceID_XSLT, "attribute", txFnStartAttribute, txFnEndAttribute }
};
const txHandlerTableData gTxAttributeSetTableData = {
// Other
{ 0, 0, txFnStartElementError, 0 },
// LRE
{ 0, 0, txFnStartElementError, 0 },
// Text
txFnTextError
};
const txElementHandler gTxFallbackElementHandlers[] = {
{ kNameSpaceID_XSLT, "fallback", txFnStartFallback, txFnEndFallback }
};
const txHandlerTableData gTxFallbackTableData = {
// Other
{ 0, 0, txFnStartElementSetIgnore, txFnEndElementSetIgnore },
// LRE
{ 0, 0, txFnStartElementSetIgnore, txFnEndElementSetIgnore },
// Text
txFnTextIgnore
};
/**
* txHandlerTable
*/
txHandlerTable::txHandlerTable(const HandleTextFn aTextHandler,
const txElementHandler* aLREHandler,
const txElementHandler* aOtherHandler)
: mTextHandler(aTextHandler),
mLREHandler(aLREHandler),
mOtherHandler(aOtherHandler),
mHandlers(PR_FALSE)
{
}
nsresult
txHandlerTable::init(const txElementHandler* aHandlers, PRUint32 aCount)
{
nsresult rv = NS_OK;
PRUint32 i;
for (i = 0; i < aCount; ++i) {
nsCOMPtr<nsIAtom> nameAtom = do_GetAtom(aHandlers->mLocalName);
txExpandedName name(aHandlers->mNamespaceID, nameAtom);
// XXX this cast is a reinterpret_cast, which is sad
rv = mHandlers.add(name, (TxObject*)aHandlers);
NS_ENSURE_SUCCESS(rv, rv);
++aHandlers;
}
return NS_OK;
}
const txElementHandler*
txHandlerTable::find(PRInt32 aNamespaceID, nsIAtom* aLocalName)
{
txExpandedName name(aNamespaceID, aLocalName);
// XXX this cast is a reinterpret_cast, same sad story as in ::init
const txElementHandler* handler =
(const txElementHandler*)mHandlers.get(name);
if (!handler) {
handler = mOtherHandler;
}
return handler;
}
#define INIT_HANDLER(_name) \
gTx##_name##Handler = \
new txHandlerTable(gTx##_name##TableData.mTextHandler, \
&gTx##_name##TableData.mLREHandler, \
&gTx##_name##TableData.mOtherHandler); \
if (!gTx##_name##Handler) \
return PR_FALSE
#define INIT_HANDLER_WITH_ELEMENT_HANDLERS(_name) \
INIT_HANDLER(_name); \
\
rv = gTx##_name##Handler->init(gTx##_name##ElementHandlers, \
NS_ARRAY_LENGTH(gTx##_name##ElementHandlers)); \
if (NS_FAILED(rv)) \
return PR_FALSE
#define SHUTDOWN_HANDLER(_name) \
delete gTx##_name##Handler; \
gTx##_name##Handler = nsnull
// static
MBool
txHandlerTable::init()
{
nsresult rv = NS_OK;
INIT_HANDLER_WITH_ELEMENT_HANDLERS(Root);
INIT_HANDLER(Embed);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(Top);
INIT_HANDLER(Ignore);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(Template);
INIT_HANDLER(Text);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(ApplyTemplates);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(CallTemplate);
INIT_HANDLER(Variable);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(ForEach);
INIT_HANDLER(TopVariable);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(Choose);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(Param);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(Import);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(AttributeSet);
INIT_HANDLER_WITH_ELEMENT_HANDLERS(Fallback);
return MB_TRUE;
}
// static
void
txHandlerTable::shutdown()
{
SHUTDOWN_HANDLER(Root);
SHUTDOWN_HANDLER(Top);
SHUTDOWN_HANDLER(Ignore);
SHUTDOWN_HANDLER(Template);
SHUTDOWN_HANDLER(Text);
SHUTDOWN_HANDLER(ApplyTemplates);
SHUTDOWN_HANDLER(CallTemplate);
SHUTDOWN_HANDLER(Variable);
SHUTDOWN_HANDLER(ForEach);
SHUTDOWN_HANDLER(TopVariable);
SHUTDOWN_HANDLER(Choose);
SHUTDOWN_HANDLER(Param);
SHUTDOWN_HANDLER(Import);
SHUTDOWN_HANDLER(AttributeSet);
SHUTDOWN_HANDLER(Fallback);
}
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