Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / XmlUtils / System / Xml / Xsl / Xslt / XsltLoader.cs / 1 / XsltLoader.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// [....]
//-----------------------------------------------------------------------------
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Reflection;
using System.Text;
using System.IO;
using System.Xml.XPath;
using System.Xml.Xsl.Qil;
namespace System.Xml.Xsl.Xslt {
using ContextInfo = XsltInput.ContextInfo;
using f = AstFactory;
using Res = System.Xml.Utils.Res;
using TypeFactory = XmlQueryTypeFactory;
internal class XsltLoader : IErrorHelper {
private Compiler compiler;
private XmlResolver xmlResolver;
private QueryReaderSettings readerSettings;
private XsltInput input; // Current input stream
private Stylesheet curStylesheet; // Current stylesheet
private Template curTemplate; // Current template; used in XslApplyImports() only
private static QilName nullMode = f.QName(string.Empty);
public void Load(Compiler compiler, object stylesheet, XmlResolver xmlResolver) {
Debug.Assert(compiler != null);
this.compiler = compiler;
this.xmlResolver = xmlResolver ?? XmlNullResolver.Singleton;
XmlReader reader = stylesheet as XmlReader;
if (reader != null) {
readerSettings = new QueryReaderSettings(reader);
LoadStylesheet(reader, /*include:*/false);
} else {
// We should take DefaultReaderSettings from Compiler.Settings.DefaultReaderSettings.
string uri = stylesheet as string;
if (uri != null) {
// If xmlResolver == null, then the original uri will be resolved using XmlUrlResolver
XmlResolver origResolver = xmlResolver ?? new XmlUrlResolver();
Uri resolvedUri = origResolver.ResolveUri(null, uri);
if (resolvedUri == null) {
throw new XslLoadException(Res.Xslt_CantResolve, uri);
}
readerSettings = new QueryReaderSettings(new NameTable());
using (reader = CreateReader(resolvedUri, origResolver)) {
LoadStylesheet(reader, /*include:*/false);
}
} else {
IXPathNavigable navigable = stylesheet as IXPathNavigable;
if (navigable != null) {
reader = XPathNavigatorReader.Create(navigable.CreateNavigator());
readerSettings = new QueryReaderSettings(reader.NameTable);
LoadStylesheet(reader, /*include:*/false);
} else {
Debug.Fail("Should never get here");
}
}
}
Process();
}
private void Process() {
Debug.Assert(compiler.PrincipalStylesheet != null);
compiler.StartApplyTemplates = f.ApplyTemplates(nullMode);
ProcessOutputSettings();
ProcessAttributeSets();
}
// Import/Include XsltInput management
private HybridDictionary documentUriInUse = new HybridDictionary();
private Uri ResolveUri(string relativeUri, string baseUri) {
Uri resolvedBaseUri = (baseUri.Length != 0) ? xmlResolver.ResolveUri(null, baseUri) : null;
Uri resolvedUri = xmlResolver.ResolveUri(resolvedBaseUri, relativeUri);
if (resolvedUri == null) {
throw new XslLoadException(Res.Xslt_CantResolve, relativeUri);
}
return resolvedUri;
}
private XmlReader CreateReader(Uri uri, XmlResolver xmlResolver) {
object input = xmlResolver.GetEntity(uri, null, null);
Stream stream = input as Stream;
if (stream != null) {
return readerSettings.CreateReader(stream, uri.ToString());
}
XmlReader reader = input as XmlReader;
if (reader != null) {
return reader;
}
IXPathNavigable navigable = input as IXPathNavigable;
if (navigable != null) {
return XPathNavigatorReader.Create(navigable.CreateNavigator());
}
throw new XslLoadException(Res.Xslt_CannotLoadStylesheet, uri.ToString(), input == null ? "null" : input.GetType().ToString());
}
private Stylesheet LoadStylesheet(Uri uri, bool include) {
using (XmlReader reader = CreateReader(uri, this.xmlResolver)) {
return LoadStylesheet(reader, include);
}
}
private Stylesheet LoadStylesheet(XmlReader reader, bool include) {
string baseUri = reader.BaseURI;
Debug.Assert(!documentUriInUse.Contains(baseUri), "Circular references must be checked while processing xsl:include and xsl:import");
documentUriInUse.Add(baseUri, null);
Stylesheet prevStylesheet = curStylesheet;
XsltInput prevInput = input;
Stylesheet thisStylesheet = include ? curStylesheet : compiler.CreateStylesheet();
input = new XsltInput(reader, compiler);
curStylesheet = thisStylesheet;
try {
LoadDocument();
if (!include) {
compiler.MergeWithStylesheet(curStylesheet);
List importHrefs = curStylesheet.ImportHrefs;
curStylesheet.Imports = new Stylesheet[importHrefs.Count];
// We can't reverce imports order. Template lookup relies on it after compilation
// Imports should be compiled in the reverse order
for (int i = importHrefs.Count - 1; 0 <= i; i--) {
curStylesheet.Imports[i] = LoadStylesheet(importHrefs[i], /*include:*/false);
}
}
}
catch (XslLoadException) {
throw;
}
catch (Exception e) {
if (!XmlException.IsCatchableException(e)) {
throw;
}
XmlException ex = e as XmlException;
if (ex != null) {
SourceLineInfo lineInfo = new SourceLineInfo(input.Uri, ex.LineNumber, ex.LinePosition, ex.LineNumber, ex.LinePosition);
throw new XslLoadException(ex, lineInfo);
}
input.FixLastLineInfo();
throw new XslLoadException(e, input.BuildLineInfo());
}
finally {
documentUriInUse.Remove(baseUri);
input = prevInput;
curStylesheet = prevStylesheet;
}
return thisStylesheet;
}
private void LoadDocument() {
if (!input.Start()) {
ReportError(/*[XT_002]*/Res.Xslt_WrongStylesheetElement);
return;
}
Debug.Assert(input.NodeType == XPathNodeType.Element);
if (input.IsXsltNamespace()) {
if (
input.IsKeyword(input.Atoms.Stylesheet) ||
input.IsKeyword(input.Atoms.Transform)
) {
LoadRealStylesheet();
} else {
ReportError(/*[XT_002]*/Res.Xslt_WrongStylesheetElement);
input.SkipNode();
}
} else {
LoadSimplifiedStylesheet();
}
input.Finish();
}
private void LoadSimplifiedStylesheet() {
Debug.Assert(!input.IsXsltNamespace());
Debug.Assert(curTemplate == null);
// Prefix will be fixed later in LoadLiteralResultElement()
curTemplate = f.Template(/*name:*/null, /*match:*/"/", /*mode:*/nullMode, /*priority:*/double.NaN, input.XslVersion);
// This template has mode=null match="/" and no imports
input.CanHaveApplyImports = true;
XslNode lre = LoadLiteralResultElement(/*asStylesheet:*/true);
if (lre != null) {
SetLineInfo(curTemplate, lre.SourceLine);
List content = new List();
content.Add(lre);
SetContent(curTemplate, content);
if (!curStylesheet.AddTemplate(curTemplate)) {
Debug.Fail("AddTemplate() returned false for simplified stylesheet");
}
}
curTemplate = null;
}
private void InsertExNamespaces(string value, ref NsDecl nsList, bool extensions) {
if (value != null && value.Length != 0) {
compiler.EnterForwardsCompatible();
string[] list = XmlConvert.SplitString(value);
for (int idx = 0; idx < list.Length; idx++) {
list[idx] = input.LookupXmlNamespace(list[idx] == "#default" ? string.Empty : list[idx]);
}
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
// There were errors in the list, ignore the whole list
return;
}
for (int idx = 0; idx < list.Length; idx++) {
if (list[idx] != null) {
nsList = new NsDecl(nsList, /*prefix:*/null, list[idx]);
if (extensions) {
input.AddExtensionNamespace(list[idx]);
}
}
}
}
}
private void LoadRealStylesheet() {
string attVersion ;
string attExtension;
string attExclude ;
string attId ;
Debug.Assert(input.IsXsltNamespace() && (input.IsKeyword(input.Atoms.Stylesheet) || input.IsKeyword(input.Atoms.Transform)));
Debug.Assert(!input.ForwardCompatibility, "We shouldn't be in FC mode before we parsed stylesheet element");
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Version , out attVersion ,
input.Atoms.ExtensionElementPrefixes, out attExtension,
input.Atoms.ExcludeResultPrefixes , out attExclude ,
input.Atoms.Id , out attId
);
if (attVersion == null) {
input.SetVersion("1.0", input.Atoms.Version);
}
InsertExNamespaces(attExtension, ref ctxInfo.nsList, /*extensions:*/ true);
InsertExNamespaces(attExclude , ref ctxInfo.nsList, /*extensions:*/ false);
if (attId != null) {
// Do nothing here.
}
string elementName = input.QualifiedName;
// Load top level elements:
if (input.MoveToFirstChild()) {
bool atTop = true;
do {
bool isImport = false;
switch (input.NodeType) {
case XPathNodeType.Element:
if (input.IsXsltNamespace()) {
if (input.IsKeyword(input.Atoms.Import)) {
if (!atTop) {
ReportError(/*[XT0200]*/Res.Xslt_NotAtTop, input.QualifiedName, elementName);
input.SkipNode();
} else {
isImport = true;
LoadImport();
}
} else {
if (input.IsKeyword(input.Atoms.Include)) {
LoadInclude();
} else if (input.IsKeyword(input.Atoms.StripSpace)) {
LoadStripSpace(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.PreserveSpace)) {
LoadPreserveSpace(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.Output)) {
LoadOutput();
} else if (input.IsKeyword(input.Atoms.Key)) {
LoadKey(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.DecimalFormat)) {
LoadDecimalFormat(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.NamespaceAlias)) {
LoadNamespaceAlias(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.AttributeSet)) {
LoadAttributeSet(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.Variable)) {
LoadGlobalVariableOrParameter(ctxInfo.nsList, XslNodeType.Variable);
} else if (input.IsKeyword(input.Atoms.Param)) {
LoadGlobalVariableOrParameter(ctxInfo.nsList, XslNodeType.Param);
} else if (input.IsKeyword(input.Atoms.Template)) {
LoadTemplate(ctxInfo.nsList);
} else {
if (!input.ForwardCompatibility) {
ReportError(/*[XT_003]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, elementName);
}
input.SkipNode();
}
}
} else if (input.IsNs(input.Atoms.UrnMsxsl) && input.IsKeyword(input.Atoms.Script)) {
LoadScript(ctxInfo.nsList);
} else if (input.IsNullNamespace()) {
ReportError(/*[XT0130]*/Res.Xslt_NullNsAtTopLevel, input.LocalName);
input.SkipNode();
} else {
// Ignoring non-recognized namespace per XSLT spec 2.2
input.SkipNode();
}
atTop = isImport;
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT0120]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.Stylesheet);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
}
private void LoadImport() {
string attHref;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Href, out attHref);
CheckNoContent();
if (attHref == null) {
return;
}
// Resolve href right away using the current BaseUri (it might change later)
Uri uri = ResolveUri(attHref, input.BaseUri);
// Check for circular references
if (documentUriInUse.Contains(uri.ToString())) {
ReportError(/*[XT0210]*/Res.Xslt_CircularInclude, attHref);
} else {
curStylesheet.ImportHrefs.Add(uri);
}
}
private void LoadInclude() {
string attHref;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Href, out attHref);
CheckNoContent();
if (attHref == null) {
return;
}
Uri uri = ResolveUri(attHref, input.BaseUri);
// Check for circular references
if (documentUriInUse.Contains(uri.ToString())) {
ReportError(/*[XT0180]*/Res.Xslt_CircularInclude, attHref);
} else {
LoadStylesheet(uri, /*include:*/ true);
}
}
private void LoadStripSpace(NsDecl stylesheetNsList) {
string attElements;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Elements, out attElements);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
ParseWhitespaceRules(attElements, false);
CheckNoContent();
}
private void LoadPreserveSpace(NsDecl stylesheetNsList) {
string attElements;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Elements, out attElements);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
ParseWhitespaceRules(attElements, true);
CheckNoContent();
}
private void LoadOutput() {
string attMethod ;
string attVersion ;
string attEncoding ;
string attOmitXmlDeclaration ;
string attStandalone ;
string attDocTypePublic ;
string attDocTypeSystem ;
string attCDataSectionElements ;
string attIndent ;
string attMediaType ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Method , out attMethod ,
input.Atoms.Version , out attVersion ,
input.Atoms.Encoding , out attEncoding ,
input.Atoms.OmitXmlDeclaration , out attOmitXmlDeclaration ,
input.Atoms.Standalone , out attStandalone ,
input.Atoms.DocTypePublic , out attDocTypePublic ,
input.Atoms.DocTypeSystem , out attDocTypeSystem ,
input.Atoms.CDataSectionElements, out attCDataSectionElements,
input.Atoms.Indent , out attIndent ,
input.Atoms.MediaType , out attMediaType
);
Output output = compiler.Output;
XmlWriterSettings settings = output.Settings;
int currentPrec = compiler.CurrentPrecedence;
TriState triState;
if (attMethod != null && currentPrec >= output.MethodPrec) {
compiler.EnterForwardsCompatible();
XmlOutputMethod outputMethod;
XmlQualifiedName method = ParseOutputMethod(attMethod, out outputMethod);
if (compiler.ExitForwardsCompatible(input.ForwardCompatibility) && method != null) {
if (currentPrec == output.MethodPrec && !output.Method.Equals(method)) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Method);
}
settings.OutputMethod = outputMethod;
output.Method = method;
output.MethodPrec = currentPrec;
}
}
if (attVersion != null && currentPrec >= output.VersionPrec) {
if (currentPrec == output.VersionPrec && output.Version != attVersion) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Version);
}
//
output.Version = attVersion;
output.VersionPrec = currentPrec;
}
if (attEncoding != null && currentPrec >= output.EncodingPrec) {
try {
// Encoding.GetEncoding() should never throw NotSupportedException, only ArgumentException
Encoding encoding = Encoding.GetEncoding(attEncoding);
if (currentPrec == output.EncodingPrec && output.Encoding != attEncoding) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Encoding);
}
settings.Encoding = encoding;
output.Encoding = attEncoding;
output.EncodingPrec = currentPrec;
}
catch (ArgumentException) {
if (!input.ForwardCompatibility) {
ReportWarning(/*[XT_004]*/Res.Xslt_InvalidEncoding, attEncoding);
}
}
}
if (attOmitXmlDeclaration != null && currentPrec >= output.OmitXmlDeclarationPrec) {
triState = ParseYesNo(attOmitXmlDeclaration, input.Atoms.OmitXmlDeclaration);
if (triState != TriState.Unknown) {
bool omitXmlDeclaration = (triState == TriState.True);
if (currentPrec == output.OmitXmlDeclarationPrec && settings.OmitXmlDeclaration != omitXmlDeclaration) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.OmitXmlDeclaration);
}
settings.OmitXmlDeclaration = omitXmlDeclaration;
output.OmitXmlDeclarationPrec = currentPrec;
}
}
if (attStandalone != null && currentPrec >= output.StandalonePrec) {
triState = ParseYesNo(attStandalone, input.Atoms.Standalone);
if (triState != TriState.Unknown) {
XmlStandalone standalone = (triState == TriState.True) ? XmlStandalone.Yes : XmlStandalone.No;
if (currentPrec == output.StandalonePrec && settings.Standalone != standalone) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Standalone);
}
settings.Standalone = standalone;
output.StandalonePrec = currentPrec;
}
}
if (attDocTypePublic != null && currentPrec >= output.DocTypePublicPrec) {
if (currentPrec == output.DocTypePublicPrec && settings.DocTypePublic != attDocTypePublic) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.DocTypePublic);
}
settings.DocTypePublic = attDocTypePublic;
output.DocTypePublicPrec = currentPrec;
}
if (attDocTypeSystem != null && currentPrec >= output.DocTypeSystemPrec) {
if (currentPrec == output.DocTypeSystemPrec && settings.DocTypeSystem != attDocTypeSystem) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.DocTypeSystem);
}
settings.DocTypeSystem = attDocTypeSystem;
output.DocTypeSystemPrec = currentPrec;
}
if (attCDataSectionElements != null && attCDataSectionElements.Length != 0) {
// Do not check the import precedence, the effective value is the union of all specified values
compiler.EnterForwardsCompatible();
string[] qnames = XmlConvert.SplitString(attCDataSectionElements);
List list = new List();
for (int i = 0; i < qnames.Length; i++) {
list.Add(ResolveQName(/*ignoreDefaultNs:*/false, qnames[i]));
}
if (compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
settings.CDataSectionElements.AddRange(list);
}
}
if (attIndent != null && currentPrec >= output.IndentPrec) {
triState = ParseYesNo(attIndent, input.Atoms.Indent);
if (triState != TriState.Unknown) {
bool indent = (triState == TriState.True);
if (currentPrec == output.IndentPrec && settings.Indent != indent) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Indent);
}
settings.Indent = indent;
output.IndentPrec = currentPrec;
}
}
if (attMediaType != null && currentPrec >= output.MediaTypePrec) {
if (currentPrec == output.MediaTypePrec && settings.MediaType != attMediaType) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.MediaType);
}
settings.MediaType = attMediaType;
output.MediaTypePrec = currentPrec;
}
CheckNoContent();
}
/*
Default values for method="xml" : version="1.0" indent="no" media-type="text/xml"
Default values for method="html": version="4.0" indent="yes" media-type="text/html"
Default values for method="text": media-type="text/plain"
*/
private void ProcessOutputSettings() {
Output output = compiler.Output;
XmlWriterSettings settings = output.Settings;
// version is ignored, indent="no" by default
if (settings.OutputMethod == XmlOutputMethod.Html && output.IndentPrec == Output.NeverDeclaredPrec) {
settings.Indent = true;
}
if (output.MediaTypePrec == Output.NeverDeclaredPrec) {
settings.MediaType =
settings.OutputMethod == XmlOutputMethod.Xml ? "text/xml" :
settings.OutputMethod == XmlOutputMethod.Html ? "text/html" :
settings.OutputMethod == XmlOutputMethod.Text ? "text/plain" : null;
}
}
private void AttributeSetsDfs(AttributeSet attSet) {
Debug.Assert(attSet != null);
switch (attSet.CycleCheck) {
case CycleCheck.NotStarted:
attSet.CycleCheck = CycleCheck.Processing;
foreach (QilName qname in attSet.UsedAttributeSets) {
AttributeSet usedAttSet;
if (!compiler.AttributeSets.TryGetValue(qname, out usedAttSet)) {
// Prevent reporting the same error twice. The error will be reported in QilGenerator
// while compiling this attribute set.
//Debug.Assert(attSet.Content[0].SourceLine != null);
//compiler.ReportError(/*[XT0710]*/attSet.Content[0].SourceLine, Res.Xslt_NoAttributeSet, qname.QualifiedName);
} else {
AttributeSetsDfs(usedAttSet);
}
}
attSet.CycleCheck = CycleCheck.Completed;
break;
case CycleCheck.Completed:
break;
default:
Debug.Assert(attSet.CycleCheck == CycleCheck.Processing);
Debug.Assert(attSet.Content[0].SourceLine != null);
compiler.ReportError(/*[XT0720]*/attSet.Content[0].SourceLine, Res.Xslt_CircularAttributeSet, attSet.Name.QualifiedName);
break;
}
}
private void ProcessAttributeSets() {
// Check attribute sets for circular references using dfs marking method
foreach (AttributeSet attSet in compiler.AttributeSets.Values) {
AttributeSetsDfs(attSet);
}
}
private void LoadKey(NsDecl stylesheetNsList) {
string attName ;
string attMatch;
string attUse ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/3,
input.Atoms.Name , out attName,
input.Atoms.Match, out attMatch,
input.Atoms.Use , out attUse
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
CheckNoContent();
QilName keyName = CreateXPathQName(attName);
Key key = (Key) SetInfo(f.Key(keyName, attMatch, attUse, input.XslVersion), null, ctxInfo);
if (compiler.Keys.Contains(keyName)) {
// Add to the list of previous definitions
compiler.Keys[keyName].Add(key);
} else {
// First definition of key with that name
List defList = new List();
defList.Add(key);
compiler.Keys.Add(defList);
}
}
private void LoadDecimalFormat(NsDecl stylesheetNsList) {
const int NumAttrs = 11, NumCharAttrs = 8, NumSignAttrs = 7;
string[] attValues = new string[NumAttrs];
string[] attNames = new string[NumAttrs] {
input.Atoms.DecimalSeparator ,
input.Atoms.GroupingSeparator,
input.Atoms.Percent ,
input.Atoms.PerMille ,
input.Atoms.ZeroDigit ,
input.Atoms.Digit ,
input.Atoms.PatternSeparator ,
input.Atoms.MinusSign ,
input.Atoms.Infinity ,
input.Atoms.NaN ,
input.Atoms.Name ,
};
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0, NumAttrs, attNames, attValues);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
// Apply default values
char[] DefaultValues = DecimalFormatDecl.Default.Characters;
char[] characters = new char[NumCharAttrs];
Debug.Assert(NumCharAttrs == DefaultValues.Length);
int idx;
for (idx = 0; idx < NumCharAttrs; idx++) {
characters[idx] = ParseCharAttribute(attValues[idx], DefaultValues[idx], attNames[idx]);
}
string attInfinity = attValues[idx++];
string attNaN = attValues[idx++];
string attName = attValues[idx++];
Debug.Assert(idx == NumAttrs);
if (attInfinity == null) {
attInfinity = DecimalFormatDecl.Default.InfinitySymbol;
}
if (attNaN == null) {
attNaN = DecimalFormatDecl.Default.NanSymbol;
}
// Check all NumSignAttrs signs are distinct
for (int i = 0; i < NumSignAttrs; i++) {
for (int j = i+1; j < NumSignAttrs; j++) {
if (characters[i] == characters[j]) {
ReportError(/*[XT1300]*/Res.Xslt_DecimalFormatSignsNotDistinct, attNames[i], attNames[j]);
break;
}
}
}
XmlQualifiedName name;
if (attName == null) {
// Use name="" for the default decimal-format
name = new XmlQualifiedName();
} else {
compiler.EnterForwardsCompatible();
name = ResolveQName(/*ignoreDefaultNs:*/true, attName);
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
name = new XmlQualifiedName();
}
}
if (compiler.DecimalFormats.Contains(name)) {
// Check all attributes have the same values
DecimalFormatDecl format = compiler.DecimalFormats[name];
for (idx = 0; idx < NumCharAttrs; idx++) {
if (characters[idx] != format.Characters[idx]) {
ReportError(/*[XT1290]*/Res.Xslt_DecimalFormatRedefined, attNames[idx], char.ToString(characters[idx]));
}
}
if (attInfinity != format.InfinitySymbol) {
ReportError(/*[XT1290]*/Res.Xslt_DecimalFormatRedefined, attNames[idx], attInfinity);
}
idx++;
if (attNaN != format.NanSymbol) {
ReportError(/*[XT1290]*/Res.Xslt_DecimalFormatRedefined, attNames[idx], attNaN);
}
idx++;
Debug.Assert(name.Equals(format.Name));
idx++;
Debug.Assert(idx == NumAttrs);
} else {
// Add format to the global collection
DecimalFormatDecl format = new DecimalFormatDecl(name, attInfinity, attNaN, new string(characters));
compiler.DecimalFormats.Add(format);
}
CheckNoContent();
}
private void LoadNamespaceAlias(NsDecl stylesheetNsList) {
string attStylesheetPrefix;
string attResultPrefix ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/2,
input.Atoms.StylesheetPrefix, out attStylesheetPrefix,
input.Atoms.ResultPrefix , out attResultPrefix
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
CheckNoContent();
string stylesheetNsUri = null;
string resultNsUri = null;
if (attStylesheetPrefix == null) {
// Attribute is missing
} else if (attStylesheetPrefix.Length == 0) {
ReportError(/*[XT_005]*/Res.Xslt_EmptyNsAlias, input.Atoms.StylesheetPrefix);
} else {
if (attStylesheetPrefix == "#default") {
attStylesheetPrefix = string.Empty;
}
stylesheetNsUri = input.LookupXmlNamespace(attStylesheetPrefix);
}
if (attResultPrefix == null) {
// Attribute is missing
} else if (attResultPrefix.Length == 0) {
ReportError(/*[XT_005]*/Res.Xslt_EmptyNsAlias, input.Atoms.ResultPrefix);
} else {
if (attResultPrefix == "#default") {
attResultPrefix = string.Empty;
}
resultNsUri = input.LookupXmlNamespace(attResultPrefix);
}
if (stylesheetNsUri == null || resultNsUri == null) {
// At least one of attributes is missing or invalid
return;
}
if (compiler.SetNsAlias(stylesheetNsUri, resultNsUri, attResultPrefix, curStylesheet.ImportPrecedence)) {
// Namespace alias redefinition
ReportWarning(/*[XT0810]*/Res.Xslt_DupNsAlias, stylesheetNsUri);
}
}
private void LoadAttributeSet(NsDecl stylesheetNsList) {
string attName ;
string attUseAttributeSets;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Name , out attName ,
input.Atoms.UseAttributeSets, out attUseAttributeSets
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
QilName attSetName = CreateXPathQName(attName);
AttributeSet attSet;
if (!curStylesheet.AttributeSets.TryGetValue(attSetName, out attSet)) {
// First definition for attSetName within this stylesheet
curStylesheet.AttributeSets[attSetName] = attSet = f.AttributeSet(attSetName);
if (!compiler.AttributeSets.ContainsKey(attSetName)) {
// First definition for attSetName overall, adding it to the list here
// to ensure stable order of prototemplate functions in QilExpression
compiler.AllTemplates.Add(attSet);
}
}
List content = ParseUseAttributeSets(attUseAttributeSets, ctxInfo.lineInfo);
foreach (XslNode useAttSet in content) {
Debug.Assert(useAttSet.NodeType == XslNodeType.UseAttributeSet);
attSet.UsedAttributeSets.Add(useAttSet.Name);
}
/* Process children */
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Element:
// Only xsl:attribute's are allowed here
if (input.IsXsltNamespace() && input.IsKeyword(input.Atoms.Attribute)) {
AddInstruction(content, XslAttribute());
} else {
ReportError(/*[XT_006]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.AttributeSet);
input.SkipNode();
}
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT_006]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.AttributeSet);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
attSet.AddContent(SetInfo(f.List(), LoadEndTag(content), ctxInfo));
}
private void LoadGlobalVariableOrParameter(NsDecl stylesheetNsList, XslNodeType nodeType) {
VarPar var = XslVarPar(nodeType);
// Preserving namespaces to parse content later
var.Namespaces = MergeNamespaces(var.Namespaces, stylesheetNsList);
if (!curStylesheet.AddVarPar(var)) {
ReportError(/*[XT0630]*/Res.Xslt_DupGlobalVariable, var.Name.QualifiedName);
}
}
//: http://www.w3.org/TR/xslt#section-Defining-Template-Rules
private void LoadTemplate(NsDecl stylesheetNsList) {
Debug.Assert(curTemplate == null);
string attMatch ;
string attName ;
string attPriority;
string attMode ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Match , out attMatch ,
input.Atoms.Name , out attName ,
input.Atoms.Priority, out attPriority,
input.Atoms.Mode , out attMode
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
if (attMatch == null) {
if (attName == null) {
ReportError(/*[XT_007]*/Res.Xslt_BothMatchNameAbsent);
}
if (attMode != null) {
ReportError(/*[XT_008]*/Res.Xslt_ModeWithoutMatch);
attMode = null;
}
if (attPriority != null) {
// In XSLT 2.0 this is an error
ReportWarning(/*[XT_008]*/Res.Xslt_PriorityWithoutMatch);
}
}
QilName tmplName = null;
if (attName != null) {
compiler.EnterForwardsCompatible();
tmplName = CreateXPathQName(attName);
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
tmplName = null;
}
}
double priority = double.NaN;
if (attPriority != null) {
priority = XPathConvert.StringToDouble(attPriority);
if (double.IsNaN(priority) && !input.ForwardCompatibility) {
ReportError(/*[XT0530]*/Res.Xslt_InvalidAttrValue, input.Atoms.Priority, attPriority);
}
}
curTemplate = f.Template(tmplName, attMatch, ParseMode(attMode), priority, input.XslVersion);
// Template without match considered to not have mode and can't call xsl:apply-imports
input.CanHaveApplyImports = (attMatch != null);
SetInfo(curTemplate,
LoadEndTag(LoadInstructions(InstructionFlags.AllowParam)), ctxInfo
);
if (!curStylesheet.AddTemplate(curTemplate)) {
ReportError(/*[XT0660]*/Res.Xslt_DupTemplateName, curTemplate.Name.QualifiedName);
}
curTemplate = null;
}
private void LoadScript(NsDecl stylesheetNsList) {
string attLanguage ;
string attImplementsPrefix;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.ImplementsPrefix, out attImplementsPrefix,
input.Atoms.Language , out attLanguage
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
string scriptNs = null;
if (attImplementsPrefix == null) {
// Attribute is missing
} else if (attImplementsPrefix.Length == 0) {
ReportError(/*[XT_009]*/Res.Xslt_EmptyAttrValue, input.Atoms.ImplementsPrefix, attImplementsPrefix);
} else {
scriptNs = input.LookupXmlNamespace(attImplementsPrefix);
if (scriptNs == XmlReservedNs.NsXslt) {
ReportError(/*[XT_036]*/Res.Xslt_ScriptXsltNamespace);
scriptNs = null;
}
}
if (scriptNs == null) {
scriptNs = compiler.CreatePhantomNamespace();
}
if (attLanguage == null) {
attLanguage = "jscript";
}
if (! compiler.Settings.EnableScript) {
compiler.Scripts.ScriptClasses[scriptNs] = null;
input.SkipNode();
return;
}
ScriptClass scriptClass;
StringBuilder scriptCode = new StringBuilder();
string uriString = input.Uri;
int lineNumber = 0;
int lastEndLine = 0;
scriptClass = compiler.Scripts.GetScriptClass(scriptNs, attLanguage, (IErrorHelper)this);
if (scriptClass == null) {
input.SkipNode();
return;
}
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Text:
int startLine = input.StartLine;
int endLine = input.EndLine;
if (scriptCode.Length == 0) {
lineNumber = startLine;
} else if (lastEndLine < startLine) {
// A multiline comment, a PI, or an unrecognized element encountered within
// this script block. Insert missed '\n' characters here; otherwise line numbers
// in error messages and in the debugger will be ----ed up. This action may spoil
// the script if the current position is situated in the middle of some identifier
// or string literal; however we hope users will not put XML nodes there.
scriptCode.Append('\n', startLine - lastEndLine);
}
scriptCode.Append(input.Value);
lastEndLine = endLine;
break;
case XPathNodeType.Element:
if (input.IsNs(input.Atoms.UrnMsxsl) && (input.IsKeyword(input.Atoms.Assembly) || input.IsKeyword(input.Atoms.Using))) {
if (scriptCode.Length != 0) {
ReportError(/*[XT_012]*/Res.Xslt_ScriptNotAtTop, input.QualifiedName);
input.SkipNode();
}
if (input.IsKeyword(input.Atoms.Assembly)) {
LoadMsAssembly(scriptClass);
} else if (input.IsKeyword(input.Atoms.Using)) {
LoadMsUsing(scriptClass);
}
} else {
ReportError(/*[XT_012]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, "msxsl:script");
input.SkipNode();
}
break;
default:
Debug.Assert(
input.NodeType == XPathNodeType.SignificantWhitespace ||
input.NodeType == XPathNodeType.Whitespace
);
// Skip leading whitespaces
if (scriptCode.Length != 0) {
goto case XPathNodeType.Text;
}
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
if (scriptCode.Length == 0) {
lineNumber = input.StartLine;
}
scriptClass.AddScriptBlock(scriptCode.ToString(), uriString, lineNumber, input.StartLine, input.StartPos);
}
private void LoadMsAssembly(ScriptClass scriptClass) {
string attName, attHref;
input.GetAttributes(/*required:*/0,
input.Atoms.Name, out attName,
input.Atoms.Href, out attHref
);
string asmLocation = null;
if (attName != null) {
if (attHref != null) {
ReportError(/*[XT_046]*/Res.Xslt_AssemblyBothNameHrefPresent);
} else {
try {
asmLocation = Assembly.Load(attName).Location;
}
catch {
AssemblyName asmName = new AssemblyName(attName);
// If the assembly is simply named, let CodeDomProvider and Fusion resolve it
byte[] publicKeyToken = asmName.GetPublicKeyToken();
if ((publicKeyToken == null || publicKeyToken.Length == 0) && asmName.Version == null) {
asmLocation = asmName.Name + ".dll";
} else {
throw;
}
}
}
} else if (attHref != null) {
asmLocation = Assembly.LoadFrom(ResolveUri(attHref, input.BaseUri).ToString()).Location;
scriptClass.refAssembliesByHref = true;
} else {
ReportError(/*[XT_045]*/Res.Xslt_AssemblyBothNameHrefAbsent);
}
if (asmLocation != null) {
scriptClass.refAssemblies.Add(asmLocation);
}
CheckNoContent();
}
private void LoadMsUsing(ScriptClass scriptClass) {
string attNamespace;
input.GetAttributes(/*required:*/1, input.Atoms.Namespace, out attNamespace);
if (attNamespace != null) {
scriptClass.nsImports.Add(attNamespace);
}
CheckNoContent();
}
// ----------------- Template level methods --------------------------
// Each instruction in AST tree has nsdecl list attuched to it.
// Load*() methods do this treek. Xsl*() methods rely on LoadOneInstruction() to do this.
// ToDo: check how LoadUnknown*() follows this gideline!
private enum InstructionFlags {
NoParamNoSort = 0x00,
AllowParam = 0x01,
AllowSort = 0x02,
}
private List LoadInstructions() {
return LoadInstructions(new List(), InstructionFlags.NoParamNoSort);
}
private List LoadInstructions(InstructionFlags flags) {
return LoadInstructions(new List(), flags);
}
private List LoadInstructions(List content) {
return LoadInstructions(content, InstructionFlags.NoParamNoSort);
}
private List LoadInstructions(List content, InstructionFlags flags) {
string parentName = input.QualifiedName;
if (input.MoveToFirstChild()) {
bool atTop = true;
XslNode result;
do {
switch (input.NodeType) {
case XPathNodeType.Element:
string nspace = input.NamespaceUri;
string name = input.LocalName;
if (nspace == input.Atoms.UriXsl) {
bool error = false;
if (Ref.Equal(name, input.Atoms.Param)) {
if ((flags & InstructionFlags.AllowParam) == 0) {
ReportError(/*[XT_013]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, parentName);
error = true;
} else if (!atTop) {
// xsl:param's must precede any other children of xsl:template
ReportError(/*[XT_014]*/Res.Xslt_NotAtTop, input.QualifiedName, parentName);
error = true;
}
} else if (Ref.Equal(name, input.Atoms.Sort)) {
if ((flags & InstructionFlags.AllowSort) == 0) {
ReportError(/*[XT_013]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, parentName);
error = true;
} else if (!atTop) {
// xsl:sort's must precede any other children of xsl:for-each
ReportError(/*[XT_014]*/Res.Xslt_NotAtTop, input.QualifiedName, parentName);
error = true;
}
} else {
atTop = false;
}
if (error) {
atTop = false;
input.SkipNode();
continue;
}
result = (
Ref.Equal(name, input.Atoms.ApplyImports ) ? XslApplyImports() :
Ref.Equal(name, input.Atoms.ApplyTemplates ) ? XslApplyTemplates() :
Ref.Equal(name, input.Atoms.CallTemplate ) ? XslCallTemplate() :
Ref.Equal(name, input.Atoms.Copy ) ? XslCopy() :
Ref.Equal(name, input.Atoms.CopyOf ) ? XslCopyOf() :
Ref.Equal(name, input.Atoms.Fallback ) ? XslFallback() :
Ref.Equal(name, input.Atoms.If ) ? XslIf() :
Ref.Equal(name, input.Atoms.Choose ) ? XslChoose() :
Ref.Equal(name, input.Atoms.ForEach ) ? XslForEach() :
Ref.Equal(name, input.Atoms.Message ) ? XslMessage() :
Ref.Equal(name, input.Atoms.Number ) ? XslNumber() :
Ref.Equal(name, input.Atoms.ValueOf ) ? XslValueOf() :
Ref.Equal(name, input.Atoms.Comment ) ? XslComment() :
Ref.Equal(name, input.Atoms.ProcessingInstruction) ? XslProcessingInstruction() :
Ref.Equal(name, input.Atoms.Text ) ? XslText() :
Ref.Equal(name, input.Atoms.Element ) ? XslElement() :
Ref.Equal(name, input.Atoms.Attribute ) ? XslAttribute() :
Ref.Equal(name, input.Atoms.Variable ) ? XslVarPar(XslNodeType.Variable) :
Ref.Equal(name, input.Atoms.Param ) ? XslVarPar(XslNodeType.Param) :
Ref.Equal(name, input.Atoms.Sort ) ? XslSort() :
/*default:*/ LoadUnknownXsltInstruction(parentName)
);
} else {
atTop = false;
result = LoadLiteralResultElement(/*asStylesheet:*/false);
}
break;
case XPathNodeType.SignificantWhitespace:
result = SetLineInfo(f.Text(input.Value), input.BuildLineInfo());
break;
case XPathNodeType.Whitespace:
continue;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
atTop = false;
goto case XPathNodeType.SignificantWhitespace;
}
AddInstruction(content, result);
} while (input.MoveToNextSibling());
input.MoveToParent();
}
return content;
}
// http://www.w3.org/TR/xslt#apply-imports
private XslNode XslApplyImports() {
ContextInfo ctxInfo = input.GetAttributes();
if (!input.CanHaveApplyImports) {
ReportError(/*[XT_015]*/Res.Xslt_InvalidApplyImports);
input.SkipNode();
return null;
}
CheckNoContent();
return SetInfo(f.ApplyImports(/*Mode:*/curTemplate.Mode, curStylesheet, input.XslVersion), null, ctxInfo);
}
// http://www.w3.org/TR/xslt#section-Applying-Template-Rules
private XslNode XslApplyTemplates() {
string attSelect;
string attMode ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Select, out attSelect,
input.Atoms.Mode , out attMode
);
if (attSelect == null) {
attSelect = "node()";
}
QilName mode = ParseMode(attMode);
List content = new List();
/* Process children */
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Element:
if (input.IsXsltNamespace()) {
if (input.IsKeyword(input.Atoms.WithParam)) {
XslNode withParam = XslVarPar(XslNodeType.WithParam);
CheckWithParam(content, withParam);
AddInstruction(content, withParam);
break;
} else if (input.IsKeyword(input.Atoms.Sort)) {
AddInstruction(content, XslSort());
break;
}
}
ReportError(/*[XT_016]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.ApplyTemplates);
input.SkipNode();
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT_016]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.ApplyTemplates);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
ctxInfo.SaveExtendedLineInfo(input);
return SetInfo(f.ApplyTemplates(mode, attSelect, ctxInfo, input.XslVersion),
content, ctxInfo
);
}
// http://www.w3.org/TR/xslt#named-templates
private XslNode XslCallTemplate() {
string attName;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Name, out attName);
List content = new List();
/* Process children */
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Element:
if (input.IsXsltNamespace() && input.IsKeyword(input.Atoms.WithParam)) {
XslNode withParam = XslVarPar(XslNodeType.WithParam);
CheckWithParam(content, withParam);
AddInstruction(content, withParam);
} else {
ReportError(/*[XT_017]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.CallTemplate);
input.SkipNode();
}
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT_017]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.CallTemplate);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
ctxInfo.SaveExtendedLineInfo(input);
return SetInfo(f.CallTemplate(CreateXPathQName(attName), ctxInfo),
content, ctxInfo
);
}
private XslNode XslCopy() {
string attUseAttributeSets;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0, input.Atoms.UseAttributeSets, out attUseAttributeSets);
List content = ParseUseAttributeSets(attUseAttributeSets, ctxInfo.lineInfo);
return SetInfo(f.Copy(), LoadEndTag(LoadInstructions(content)), ctxInfo);
}
private XslNode XslCopyOf() {
string attSelect;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Select, out attSelect);
CheckNoContent();
return SetInfo(f.CopyOf(attSelect, input.XslVersion), null, ctxInfo);
}
// http://www.w3.org/TR/xslt#fallback
// See LoadFallbacks() for real fallback implementation
private XslNode XslFallback() {
input.GetAttributes();
input.SkipNode();
return null;
}
private XslNode XslIf() {
string attTest;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Test, out attTest);
return SetInfo(f.If(attTest, input.XslVersion), LoadInstructions(), ctxInfo);
}
private XslNode XslChoose() {
ContextInfo ctxInfo = input.GetAttributes();
List content = new List();
bool otherwise = false;
bool when = false;
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Element:
XslNode node = null;
if (Ref.Equal(input.NamespaceUri, input.Atoms.UriXsl)) {
if (Ref.Equal(input.LocalName, input.Atoms.When)) {
if (otherwise) {
ReportError(/*[XT_018]*/Res.Xslt_WhenAfterOtherwise);
input.SkipNode();
continue;
} else {
when = true;
node = XslIf();
}
} else if (Ref.Equal(input.LocalName, input.Atoms.Otherwise)) {
if (otherwise) {
ReportError(/*[XT_019]*/Res.Xslt_DupOtherwise);
input.SkipNode();
continue;
} else {
otherwise = true;
node = XslOtherwise();
}
}
}
if (node == null) {
ReportError(/*[XT_020]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.Choose);
input.SkipNode();
continue;
}
AddInstruction(content, node);
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT_020]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.Choose);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
if (!when) {
ReportError(/*[XT_021]*/Res.Xslt_NoWhen);
}
return SetInfo(f.Choose(), content, ctxInfo);
}
private XslNode XslOtherwise() {
ContextInfo ctxInfo = input.GetAttributes();
return SetInfo(f.Otherwise(), LoadInstructions(), ctxInfo);
}
private XslNode XslForEach() {
string attSelect;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Select, out attSelect);
// The current template rule becomes null, so we must not allow xsl:apply-import's within this element
input.CanHaveApplyImports = false;
List content = LoadInstructions(InstructionFlags.AllowSort);
ctxInfo.SaveExtendedLineInfo(input);
return SetInfo(f.ForEach(attSelect, ctxInfo, input.XslVersion),
content, ctxInfo
);
}
// http://www.w3.org/TR/xslt#message
private XslNode XslMessage() {
string attTerminate;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0, input.Atoms.Terminate, out attTerminate);
bool terminate = ParseYesNo(attTerminate, /*attName:*/input.Atoms.Terminate) == TriState.True;
return SetInfo(f.Message(terminate), LoadEndTag(LoadInstructions()), ctxInfo);
}
// http://www.w3.org/TR/xslt#number
private XslNode XslNumber() {
string attLevel ;
string attCount ;
string attFrom ;
string attValue ;
string attFormat ;
string attLang ;
string attLetterValue ;
string attGroupingSeparator;
string attGroupingSize ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Level , out attLevel ,
input.Atoms.Count , out attCount ,
input.Atoms.From , out attFrom ,
input.Atoms.Value , out attValue ,
input.Atoms.Format , out attFormat ,
input.Atoms.Lang , out attLang ,
input.Atoms.LetterValue , out attLetterValue ,
input.Atoms.GroupingSeparator, out attGroupingSeparator,
input.Atoms.GroupingSize , out attGroupingSize
);
// Default values for xsl:number : level="single" format="1"
NumberLevel level;
switch (attLevel) {
case "single" : level = NumberLevel.Single ; break;
case "multiple": level = NumberLevel.Multiple; break;
case "any" : level = NumberLevel.Any ; break;
default:
if (attLevel != null && !input.ForwardCompatibility) {
ReportError(/*[XT_022]*/Res.Xslt_InvalidAttrValue, input.Atoms.Level, attLevel);
}
goto case "single";
}
if (attFormat == null) {
attFormat = "1";
}
CheckNoContent();
return SetInfo(
f.Number(level, attCount, attFrom, attValue,
attFormat, attLang, attLetterValue, attGroupingSeparator, attGroupingSize,
input.XslVersion
),
null, ctxInfo
);
}
// http://www.w3.org/TR/xslt#value-of
private XslNode XslValueOf() {
string attSelect ;
string attDisableOutputEscaping;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Select , out attSelect,
input.Atoms.DisableOutputEscaping, out attDisableOutputEscaping
);
bool doe = ParseYesNo(attDisableOutputEscaping, /*attName:*/ input.Atoms.DisableOutputEscaping) == TriState.True;
CheckNoContent();
return SetInfo(f.XslNode(doe ? XslNodeType.ValueOfDoe : XslNodeType.ValueOf, null, attSelect, input.XslVersion),
null, ctxInfo
);
}
// xsl:variable http://www.w3.org/TR/xslt#local-variables
// xsl:param http://www.w3.org/TR/xslt#element-param
// xsl:with-param http://www.w3.org/TR/xslt#element-with-param
private VarPar XslVarPar(XslNodeType nodeType) {
Debug.Assert(
nodeType == XslNodeType.Variable && input.LocalName == input.Atoms.Variable ||
nodeType == XslNodeType.Param && input.LocalName == input.Atoms.Param ||
nodeType == XslNodeType.WithParam && input.LocalName == input.Atoms.WithParam
);
string attName ;
string attSelect;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Name , out attName,
input.Atoms.Select, out attSelect
);
List content = LoadInstructions();
// Load the end tag only if the content is not empty
if (content.Count != 0) {
content = LoadEndTag(content);
}
if (attSelect != null && content.Count != 0) {
ReportError(/*[XT0620]*/Res.Xslt_VariableCntSel2, attName);
}
VarPar result = f.VarPar(nodeType, CreateXPathQName(attName), attSelect, input.XslVersion);
SetInfo(result, content, ctxInfo);
return result;
}
// http://www.w3.org/TR/xslt#section-Creating-Comments
private XslNode XslComment() {
ContextInfo ctxInfo = input.GetAttributes();
return SetInfo(f.Comment(),
LoadEndTag(LoadInstructions()), ctxInfo
);
}
// http://www.w3.org/TR/xslt#section-Creating-Processing-Instructions
private XslNode XslProcessingInstruction() {
string attName;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Name, out attName);
if (attName == null) {
attName = compiler.PhantomNCName;
}
return SetInfo(f.PI(attName, input.XslVersion),
LoadEndTag(LoadInstructions()), ctxInfo
);
}
// http://www.w3.org/TR/xslt#section-Creating-Text
private XslNode XslText() {
string attDisableOutputEscaping;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,input.Atoms.DisableOutputEscaping, out attDisableOutputEscaping);
bool doe = ParseYesNo(attDisableOutputEscaping, /*attName:*/ input.Atoms.DisableOutputEscaping) == TriState.True;
SerializationHints hints = doe ? SerializationHints.DisableOutputEscaping : SerializationHints.None;
// We are not using StringBuilder here because in most cases there will be just one text node.
List content = new List();
// xsl:text may contain multiple child text nodes separated by comments and PIs, which are ignored by XsltInput
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Text:
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
content.Add(f.Text(input.Value, hints));
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Element);
ReportError(/*[XT_023]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.Text);
input.SkipNode();
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
// Empty xsl:text elements will be ignored
return SetInfo(f.List(), content, ctxInfo);
}
// http://www.w3.org/TR/xslt#section-Creating-Elements-with-xsl:element
private XslNode XslElement() {
string attName ;
string attNamespace ;
string attUseAttributeSets;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Name , out attName ,
input.Atoms.Namespace , out attNamespace ,
input.Atoms.UseAttributeSets, out attUseAttributeSets
);
if (attName == null) {
attName = compiler.PhantomNCName;
}
if (attNamespace == XmlReservedNs.NsXmlNs) {
ReportError(/*[XT_024]*/Res.Xslt_ReservedNS, attNamespace);
}
List content = ParseUseAttributeSets(attUseAttributeSets, ctxInfo.lineInfo);
return SetInfo(f.Element(attName, attNamespace, input.XslVersion),
LoadEndTag(LoadInstructions(content)), ctxInfo
);
}
// http://www.w3.org/TR/xslt#creating-attributes
private XslNode XslAttribute() {
string attName ;
string attNamespace;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Name , out attName ,
input.Atoms.Namespace, out attNamespace
);
if (attName == null) {
attName = compiler.PhantomNCName;
}
if (attNamespace == XmlReservedNs.NsXmlNs) {
ReportError(/*[XT_024]*/Res.Xslt_ReservedNS, attNamespace);
}
return SetInfo(f.Attribute(attName, attNamespace, input.XslVersion),
LoadEndTag(LoadInstructions()), ctxInfo
);
}
// http://www.w3.org/TR/xslt#sorting
private XslNode XslSort() {
string attSelect ;
string attLang ;
string attDataType ;
string attOrder ;
string attCaseOrder;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Select , out attSelect ,
input.Atoms.Lang , out attLang ,
input.Atoms.DataType , out attDataType ,
input.Atoms.Order , out attOrder ,
input.Atoms.CaseOrder, out attCaseOrder
);
if (attSelect == null) {
attSelect = ".";
}
CheckNoContent();
return SetInfo(f.Sort(attSelect, attLang, attDataType, attOrder, attCaseOrder, input.XslVersion),
null, ctxInfo
);
}
// http://www.w3.org/TR/xslt#literal-result-element
private XslNode LoadLiteralResultElement(bool asStylesheet) {
Debug.Assert(input.NodeType == XPathNodeType.Element);
string prefix = input.Prefix;
string name = input.LocalName;
string nsUri = input.NamespaceUri;
string version = null;
string extPrefixes = null;
string exclPrefixes = null;
string useAttrSets = null;
string versionQName = null;
List content = new List();
ContextInfo ctxInfo = new ContextInfo(input);
/* Process literal attributes */
while (input.MoveToNextAttOrNs()) {
if (input.NodeType == XPathNodeType.Namespace) {
ctxInfo.AddNamespace(input);
} else {
Debug.Assert(input.NodeType == XPathNodeType.Attribute);
ctxInfo.AddAttribute(input);
if (input.IsXsltNamespace()) {
if (input.LocalName == input.Atoms.Version) {
version = input.Value;
versionQName = input.QualifiedName;
} else if (input.LocalName == input.Atoms.ExtensionElementPrefixes) {
extPrefixes = input.Value;
} else if (input.LocalName == input.Atoms.ExcludeResultPrefixes) {
exclPrefixes = input.Value;
} else if (input.LocalName == input.Atoms.UseAttributeSets) {
useAttrSets = input.Value;
} else {
// just ignore it
}
} else {
XslNode att = f.LiteralAttribute(f.QName(input.LocalName, input.NamespaceUri, input.Prefix), input.Value, input.XslVersion);
// QilGenerator takes care of AVTs, and needs line info
AddInstruction(content, SetLineInfo(att, ctxInfo.lineInfo));
}
}
}
ctxInfo.Finish(input);
if (version != null) {
// Enable forwards-compatible behavior if version attribute is not "1.0"
input.SetVersion(version, versionQName);
} else {
if (asStylesheet) {
if (Ref.Equal(nsUri, input.Atoms.UriWdXsl) && Ref.Equal(name, input.Atoms.Stylesheet)) {
ReportError(/*[XT_025]*/Res.Xslt_WdXslNamespace);
} else {
ReportError(/*[XT0150]*/Res.Xslt_WrongStylesheetElement);
}
input.SkipNode();
return null;
}
}
// Parse xsl:extension-element-prefixes attribute (now that forwards-compatible mode is known)
InsertExNamespaces(extPrefixes, ref ctxInfo.nsList, /*extensions:*/true);
XslNode result;
// Now we can determine whether this element is an extension element (spec section 14.1)
if (input.IsExtensionNamespace(nsUri)) {
// This is not a literal result element, so drop all attributes we have collected
content = LoadFallbacks(name);
result = f.List();
} else {
// Parse xsl:exclude-result-prefixes attribute (now that it's known this is a literal result element)
InsertExNamespaces(exclPrefixes, ref ctxInfo.nsList, /*extensions:*/false);
// Insert all attribute sets at the beginning of content
content.InsertRange(0, ParseUseAttributeSets(useAttrSets, ctxInfo.lineInfo));
content = LoadEndTag(LoadInstructions(content));
result = f.LiteralElement(f.QName(name, nsUri, prefix));
}
return SetInfo(result, content, ctxInfo);
}
private void CheckWithParam(List content, XslNode withParam) {
Debug.Assert(content != null && withParam != null);
Debug.Assert(withParam.NodeType == XslNodeType.WithParam);
foreach (XslNode node in content) {
if (node.NodeType == XslNodeType.WithParam && node.Name.Equals(withParam.Name)) {
ReportError(/*[XT0670]*/Res.Xslt_DuplicateWithParam, withParam.Name.QualifiedName);
break;
}
}
}
private static void AddInstruction(List content, XslNode instruction) {
Debug.Assert(content != null);
if (instruction != null) {
content.Add(instruction);
}
}
private List LoadEndTag(List content) {
Debug.Assert(content != null);
if (compiler.IsDebug && !input.IsEmptyElement) {
AddInstruction(content, SetLineInfo(f.Nop(), input.BuildLineInfo()));
}
return content;
}
private XslNode LoadUnknownXsltInstruction(string parentName) {
if (!input.ForwardCompatibility) {
ReportError(/*[XT_026]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, parentName);
input.SkipNode();
return null;
} else {
ContextInfo ctxInfo = input.GetAttributes();
List fallbacks = LoadFallbacks(input.LocalName);
return SetInfo(f.List(), fallbacks, ctxInfo);
}
}
private List LoadFallbacks(string instrName) {
List fallbacksArray = new List();
//
/* Process children */
if (input.MoveToFirstChild()) {
do {
if (
Ref.Equal(input.NamespaceUri, input.Atoms.UriXsl ) &&
Ref.Equal(input.LocalName , input.Atoms.Fallback)
) {
ContextInfo ctxInfo = input.GetAttributes();
fallbacksArray.Add(SetInfo(f.List(), LoadInstructions(), ctxInfo));
} else {
input.SkipNode();
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
// Generate runtime error if there is no fallbacks
if (fallbacksArray.Count == 0) {
fallbacksArray.Add(
f.Error(XslLoadException.CreateMessage(input.BuildLineInfo(), Res.Xslt_UnknownExtensionElement, instrName))
);
}
return fallbacksArray;
}
// ------------------ little helper methods ---------------------
// Suppresses errors if FCB is enabled
private QilName ParseMode(string qname) {
if (qname == null) {
return nullMode;
}
// mode is always optional attribute
compiler.EnterForwardsCompatible();
QilName mode = CreateXPathQName(qname);
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
mode = nullMode;
}
return mode;
}
// Does not suppress errors
private void ResolveQName(bool ignoreDefaultNs, string qname, out string localName, out string namespaceName, out string prefix) {
if (qname == null) {
// That means stylesheet is incorrect
prefix = compiler.PhantomNCName;
localName = compiler.PhantomNCName;
namespaceName = compiler.CreatePhantomNamespace();
return;
}
if (!compiler.ParseQName(qname, out prefix, out localName, (IErrorHelper)this)) {
namespaceName = compiler.CreatePhantomNamespace();
return;
}
if (ignoreDefaultNs && prefix.Length == 0) {
namespaceName = string.Empty;
} else {
namespaceName = input.LookupXmlNamespace(prefix);
if (namespaceName == null) {
namespaceName = compiler.CreatePhantomNamespace();
}
}
}
// Does not suppress errors
private QilName CreateXPathQName(string qname) {
string prefix, localName, namespaceName;
ResolveQName(/*ignoreDefaultNs:*/true, qname, out localName, out namespaceName, out prefix);
return f.QName(localName, namespaceName, prefix);
}
// Does not suppress errors
private XmlQualifiedName ResolveQName(bool ignoreDefaultNs, string qname) {
string prefix, localName, namespaceName;
ResolveQName(ignoreDefaultNs, qname, out localName, out namespaceName, out prefix);
return new XmlQualifiedName(localName, namespaceName);
}
// Does not suppress errors
private void ParseWhitespaceRules(string elements, bool preserveSpace) {
if (elements != null && elements.Length != 0) {
string[] tokens = XmlConvert.SplitString(elements);
for (int i = 0; i < tokens.Length; i++) {
string prefix, localName, namespaceName;
if (!compiler.ParseNameTest(tokens[i], out prefix, out localName, (IErrorHelper)this)) {
namespaceName = compiler.CreatePhantomNamespace();
} else if (prefix == null || prefix.Length == 0) {
namespaceName = prefix;
} else {
namespaceName = input.LookupXmlNamespace(prefix);
if (namespaceName == null) {
namespaceName = compiler.CreatePhantomNamespace();
}
}
int index = (
(localName == null ? 1 : 0) +
(namespaceName == null ? 1 : 0)
);
curStylesheet.AddWhitespaceRule(index, new WhitespaceRule(localName, namespaceName, preserveSpace));
}
}
}
// Does not suppress errors. In case of error, null is returned.
private XmlQualifiedName ParseOutputMethod(string attValue, out XmlOutputMethod method) {
string prefix, localName, namespaceName;
ResolveQName(/*ignoreDefaultNs:*/true, attValue, out localName, out namespaceName, out prefix);
method = XmlOutputMethod.AutoDetect;
if (compiler.IsPhantomNamespace(namespaceName)) {
return null;
} else if (prefix.Length == 0) {
switch (localName) {
case "xml" : method = XmlOutputMethod.Xml; break;
case "html" : method = XmlOutputMethod.Html; break;
case "text" : method = XmlOutputMethod.Text; break;
default:
ReportError(/*[XT1570]*/Res.Xslt_InvalidAttrValue, input.Atoms.Method, attValue);
return null;
}
} else {
if (!input.ForwardCompatibility) {
ReportWarning(/*[XT1570]*/Res.Xslt_InvalidMethod, attValue);
}
}
return new XmlQualifiedName(localName, namespaceName);
}
// Suppresses errors if FCB is enabled
private List ParseUseAttributeSets(string useAttributeSets, ISourceLineInfo lineInfo) {
List result = new List();
if (useAttributeSets != null && useAttributeSets.Length != 0) {
compiler.EnterForwardsCompatible();
string[] qnames = XmlConvert.SplitString(useAttributeSets);
for (int idx = 0; idx < qnames.Length; idx++) {
AddInstruction(result, SetLineInfo(f.UseAttributeSet(CreateXPathQName(qnames[idx])), lineInfo));
}
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
// There were errors in the list, ignore the whole list
result = new List();
}
}
return result;
}
// Suppresses errors if FCB is enabled
private TriState ParseYesNo(string val, string attName) {
switch (val) {
case null : return TriState.Unknown;
case "yes": return TriState.True;
case "no" : return TriState.False;
default:
if (!input.ForwardCompatibility) {
ReportError(/*[XT_028]*/Res.Xslt_BistateAttribute, attName, "yes", "no");
}
return TriState.Unknown;
}
}
// Suppresses errors if FCB is enabled
private char ParseCharAttribute(string attValue, char defaultValue, string attName) {
if (attValue == null) {
return defaultValue;
} else if (attValue.Length != 1) {
if (!input.ForwardCompatibility) {
ReportError(/*[XT_029]*/Res.Xslt_CharAttribute, attName);
}
return defaultValue;
}
return attValue[0];
}
private void CheckNoContent() {
string elementName = input.QualifiedName;
bool error = false;
// Really EMPTY means no content at all, but for the sake of compatibility with MSXML we allow whitespaces
if (input.MoveToFirstChild()) {
do {
// NOTE: XPathNodeType.SignificantWhitespace are not allowed here
if (input.NodeType != XPathNodeType.Whitespace) {
if (!error) {
ReportError(/*[XT0260]*/Res.Xslt_NotEmptyContents, elementName);
error = true;
}
input.SkipNode();
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
}
private static XslNode SetLineInfo(XslNode node, ISourceLineInfo lineInfo) {
Debug.Assert(node != null);
node.SourceLine = lineInfo;
return node;
}
private static void SetContent(XslNode node, List content) {
Debug.Assert(node != null);
if (content != null && content.Count == 0) {
content = null; // Actualy we can reuse this ArayList.
}
node.SetContent(content);
}
private static XslNode SetInfo(XslNode to, List content, ContextInfo info) {
Debug.Assert(to != null);
to.Namespaces = info.nsList;
SetContent(to, content);
SetLineInfo(to, info.lineInfo);
return to;
}
// NOTE! We inverting namespace order that is irelevant for namespace of the same node, but
// for included styleseets we don't keep stylesheet as a node and adding it's namespaces to
// each toplevel element by MergeNamespaces().
// Namespaces of stylesheet can be overriden in template and to make this works correclety we
// should attache them after NsDec of top level elements.
// Toplevel element almost never contais NsDecl and in practice node duplication will not happened, but if they have
// we should copy NsDecls of stylesheet localy in toplevel elements.
private static NsDecl MergeNamespaces(NsDecl thisList, NsDecl parentList) {
if (parentList == null) {
return thisList;
}
if (thisList == null) {
return parentList;
}
// Clone all nodes and attache them to nodes of thisList;
while (parentList != null) {
bool duplicate = false;
for (NsDecl tmp = thisList; tmp != null; tmp = tmp.Prev) {
if (Ref.Equal(tmp.Prefix, parentList.Prefix) && (
tmp.Prefix != null || // Namespace declaration
tmp.NsUri == parentList.NsUri // Extension or excluded namespace
)) {
duplicate = true;
break;
}
}
if (!duplicate) {
thisList = new NsDecl(thisList, parentList.Prefix, parentList.NsUri);
}
parentList = parentList.Prev;
}
return thisList;
}
// -------------------------------- IErrorHelper --------------------------------
public void ReportError(string res, params string[] args) {
compiler.ReportError(input.BuildLineInfo(), res, args);
}
public void ReportWarning(string res, params string[] args) {
compiler.ReportWarning(input.BuildLineInfo(), res, args);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// [....]
//-----------------------------------------------------------------------------
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Reflection;
using System.Text;
using System.IO;
using System.Xml.XPath;
using System.Xml.Xsl.Qil;
namespace System.Xml.Xsl.Xslt {
using ContextInfo = XsltInput.ContextInfo;
using f = AstFactory;
using Res = System.Xml.Utils.Res;
using TypeFactory = XmlQueryTypeFactory;
internal class XsltLoader : IErrorHelper {
private Compiler compiler;
private XmlResolver xmlResolver;
private QueryReaderSettings readerSettings;
private XsltInput input; // Current input stream
private Stylesheet curStylesheet; // Current stylesheet
private Template curTemplate; // Current template; used in XslApplyImports() only
private static QilName nullMode = f.QName(string.Empty);
public void Load(Compiler compiler, object stylesheet, XmlResolver xmlResolver) {
Debug.Assert(compiler != null);
this.compiler = compiler;
this.xmlResolver = xmlResolver ?? XmlNullResolver.Singleton;
XmlReader reader = stylesheet as XmlReader;
if (reader != null) {
readerSettings = new QueryReaderSettings(reader);
LoadStylesheet(reader, /*include:*/false);
} else {
// We should take DefaultReaderSettings from Compiler.Settings.DefaultReaderSettings.
string uri = stylesheet as string;
if (uri != null) {
// If xmlResolver == null, then the original uri will be resolved using XmlUrlResolver
XmlResolver origResolver = xmlResolver ?? new XmlUrlResolver();
Uri resolvedUri = origResolver.ResolveUri(null, uri);
if (resolvedUri == null) {
throw new XslLoadException(Res.Xslt_CantResolve, uri);
}
readerSettings = new QueryReaderSettings(new NameTable());
using (reader = CreateReader(resolvedUri, origResolver)) {
LoadStylesheet(reader, /*include:*/false);
}
} else {
IXPathNavigable navigable = stylesheet as IXPathNavigable;
if (navigable != null) {
reader = XPathNavigatorReader.Create(navigable.CreateNavigator());
readerSettings = new QueryReaderSettings(reader.NameTable);
LoadStylesheet(reader, /*include:*/false);
} else {
Debug.Fail("Should never get here");
}
}
}
Process();
}
private void Process() {
Debug.Assert(compiler.PrincipalStylesheet != null);
compiler.StartApplyTemplates = f.ApplyTemplates(nullMode);
ProcessOutputSettings();
ProcessAttributeSets();
}
// Import/Include XsltInput management
private HybridDictionary documentUriInUse = new HybridDictionary();
private Uri ResolveUri(string relativeUri, string baseUri) {
Uri resolvedBaseUri = (baseUri.Length != 0) ? xmlResolver.ResolveUri(null, baseUri) : null;
Uri resolvedUri = xmlResolver.ResolveUri(resolvedBaseUri, relativeUri);
if (resolvedUri == null) {
throw new XslLoadException(Res.Xslt_CantResolve, relativeUri);
}
return resolvedUri;
}
private XmlReader CreateReader(Uri uri, XmlResolver xmlResolver) {
object input = xmlResolver.GetEntity(uri, null, null);
Stream stream = input as Stream;
if (stream != null) {
return readerSettings.CreateReader(stream, uri.ToString());
}
XmlReader reader = input as XmlReader;
if (reader != null) {
return reader;
}
IXPathNavigable navigable = input as IXPathNavigable;
if (navigable != null) {
return XPathNavigatorReader.Create(navigable.CreateNavigator());
}
throw new XslLoadException(Res.Xslt_CannotLoadStylesheet, uri.ToString(), input == null ? "null" : input.GetType().ToString());
}
private Stylesheet LoadStylesheet(Uri uri, bool include) {
using (XmlReader reader = CreateReader(uri, this.xmlResolver)) {
return LoadStylesheet(reader, include);
}
}
private Stylesheet LoadStylesheet(XmlReader reader, bool include) {
string baseUri = reader.BaseURI;
Debug.Assert(!documentUriInUse.Contains(baseUri), "Circular references must be checked while processing xsl:include and xsl:import");
documentUriInUse.Add(baseUri, null);
Stylesheet prevStylesheet = curStylesheet;
XsltInput prevInput = input;
Stylesheet thisStylesheet = include ? curStylesheet : compiler.CreateStylesheet();
input = new XsltInput(reader, compiler);
curStylesheet = thisStylesheet;
try {
LoadDocument();
if (!include) {
compiler.MergeWithStylesheet(curStylesheet);
List importHrefs = curStylesheet.ImportHrefs;
curStylesheet.Imports = new Stylesheet[importHrefs.Count];
// We can't reverce imports order. Template lookup relies on it after compilation
// Imports should be compiled in the reverse order
for (int i = importHrefs.Count - 1; 0 <= i; i--) {
curStylesheet.Imports[i] = LoadStylesheet(importHrefs[i], /*include:*/false);
}
}
}
catch (XslLoadException) {
throw;
}
catch (Exception e) {
if (!XmlException.IsCatchableException(e)) {
throw;
}
XmlException ex = e as XmlException;
if (ex != null) {
SourceLineInfo lineInfo = new SourceLineInfo(input.Uri, ex.LineNumber, ex.LinePosition, ex.LineNumber, ex.LinePosition);
throw new XslLoadException(ex, lineInfo);
}
input.FixLastLineInfo();
throw new XslLoadException(e, input.BuildLineInfo());
}
finally {
documentUriInUse.Remove(baseUri);
input = prevInput;
curStylesheet = prevStylesheet;
}
return thisStylesheet;
}
private void LoadDocument() {
if (!input.Start()) {
ReportError(/*[XT_002]*/Res.Xslt_WrongStylesheetElement);
return;
}
Debug.Assert(input.NodeType == XPathNodeType.Element);
if (input.IsXsltNamespace()) {
if (
input.IsKeyword(input.Atoms.Stylesheet) ||
input.IsKeyword(input.Atoms.Transform)
) {
LoadRealStylesheet();
} else {
ReportError(/*[XT_002]*/Res.Xslt_WrongStylesheetElement);
input.SkipNode();
}
} else {
LoadSimplifiedStylesheet();
}
input.Finish();
}
private void LoadSimplifiedStylesheet() {
Debug.Assert(!input.IsXsltNamespace());
Debug.Assert(curTemplate == null);
// Prefix will be fixed later in LoadLiteralResultElement()
curTemplate = f.Template(/*name:*/null, /*match:*/"/", /*mode:*/nullMode, /*priority:*/double.NaN, input.XslVersion);
// This template has mode=null match="/" and no imports
input.CanHaveApplyImports = true;
XslNode lre = LoadLiteralResultElement(/*asStylesheet:*/true);
if (lre != null) {
SetLineInfo(curTemplate, lre.SourceLine);
List content = new List();
content.Add(lre);
SetContent(curTemplate, content);
if (!curStylesheet.AddTemplate(curTemplate)) {
Debug.Fail("AddTemplate() returned false for simplified stylesheet");
}
}
curTemplate = null;
}
private void InsertExNamespaces(string value, ref NsDecl nsList, bool extensions) {
if (value != null && value.Length != 0) {
compiler.EnterForwardsCompatible();
string[] list = XmlConvert.SplitString(value);
for (int idx = 0; idx < list.Length; idx++) {
list[idx] = input.LookupXmlNamespace(list[idx] == "#default" ? string.Empty : list[idx]);
}
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
// There were errors in the list, ignore the whole list
return;
}
for (int idx = 0; idx < list.Length; idx++) {
if (list[idx] != null) {
nsList = new NsDecl(nsList, /*prefix:*/null, list[idx]);
if (extensions) {
input.AddExtensionNamespace(list[idx]);
}
}
}
}
}
private void LoadRealStylesheet() {
string attVersion ;
string attExtension;
string attExclude ;
string attId ;
Debug.Assert(input.IsXsltNamespace() && (input.IsKeyword(input.Atoms.Stylesheet) || input.IsKeyword(input.Atoms.Transform)));
Debug.Assert(!input.ForwardCompatibility, "We shouldn't be in FC mode before we parsed stylesheet element");
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Version , out attVersion ,
input.Atoms.ExtensionElementPrefixes, out attExtension,
input.Atoms.ExcludeResultPrefixes , out attExclude ,
input.Atoms.Id , out attId
);
if (attVersion == null) {
input.SetVersion("1.0", input.Atoms.Version);
}
InsertExNamespaces(attExtension, ref ctxInfo.nsList, /*extensions:*/ true);
InsertExNamespaces(attExclude , ref ctxInfo.nsList, /*extensions:*/ false);
if (attId != null) {
// Do nothing here.
}
string elementName = input.QualifiedName;
// Load top level elements:
if (input.MoveToFirstChild()) {
bool atTop = true;
do {
bool isImport = false;
switch (input.NodeType) {
case XPathNodeType.Element:
if (input.IsXsltNamespace()) {
if (input.IsKeyword(input.Atoms.Import)) {
if (!atTop) {
ReportError(/*[XT0200]*/Res.Xslt_NotAtTop, input.QualifiedName, elementName);
input.SkipNode();
} else {
isImport = true;
LoadImport();
}
} else {
if (input.IsKeyword(input.Atoms.Include)) {
LoadInclude();
} else if (input.IsKeyword(input.Atoms.StripSpace)) {
LoadStripSpace(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.PreserveSpace)) {
LoadPreserveSpace(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.Output)) {
LoadOutput();
} else if (input.IsKeyword(input.Atoms.Key)) {
LoadKey(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.DecimalFormat)) {
LoadDecimalFormat(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.NamespaceAlias)) {
LoadNamespaceAlias(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.AttributeSet)) {
LoadAttributeSet(ctxInfo.nsList);
} else if (input.IsKeyword(input.Atoms.Variable)) {
LoadGlobalVariableOrParameter(ctxInfo.nsList, XslNodeType.Variable);
} else if (input.IsKeyword(input.Atoms.Param)) {
LoadGlobalVariableOrParameter(ctxInfo.nsList, XslNodeType.Param);
} else if (input.IsKeyword(input.Atoms.Template)) {
LoadTemplate(ctxInfo.nsList);
} else {
if (!input.ForwardCompatibility) {
ReportError(/*[XT_003]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, elementName);
}
input.SkipNode();
}
}
} else if (input.IsNs(input.Atoms.UrnMsxsl) && input.IsKeyword(input.Atoms.Script)) {
LoadScript(ctxInfo.nsList);
} else if (input.IsNullNamespace()) {
ReportError(/*[XT0130]*/Res.Xslt_NullNsAtTopLevel, input.LocalName);
input.SkipNode();
} else {
// Ignoring non-recognized namespace per XSLT spec 2.2
input.SkipNode();
}
atTop = isImport;
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT0120]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.Stylesheet);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
}
private void LoadImport() {
string attHref;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Href, out attHref);
CheckNoContent();
if (attHref == null) {
return;
}
// Resolve href right away using the current BaseUri (it might change later)
Uri uri = ResolveUri(attHref, input.BaseUri);
// Check for circular references
if (documentUriInUse.Contains(uri.ToString())) {
ReportError(/*[XT0210]*/Res.Xslt_CircularInclude, attHref);
} else {
curStylesheet.ImportHrefs.Add(uri);
}
}
private void LoadInclude() {
string attHref;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Href, out attHref);
CheckNoContent();
if (attHref == null) {
return;
}
Uri uri = ResolveUri(attHref, input.BaseUri);
// Check for circular references
if (documentUriInUse.Contains(uri.ToString())) {
ReportError(/*[XT0180]*/Res.Xslt_CircularInclude, attHref);
} else {
LoadStylesheet(uri, /*include:*/ true);
}
}
private void LoadStripSpace(NsDecl stylesheetNsList) {
string attElements;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Elements, out attElements);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
ParseWhitespaceRules(attElements, false);
CheckNoContent();
}
private void LoadPreserveSpace(NsDecl stylesheetNsList) {
string attElements;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Elements, out attElements);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
ParseWhitespaceRules(attElements, true);
CheckNoContent();
}
private void LoadOutput() {
string attMethod ;
string attVersion ;
string attEncoding ;
string attOmitXmlDeclaration ;
string attStandalone ;
string attDocTypePublic ;
string attDocTypeSystem ;
string attCDataSectionElements ;
string attIndent ;
string attMediaType ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Method , out attMethod ,
input.Atoms.Version , out attVersion ,
input.Atoms.Encoding , out attEncoding ,
input.Atoms.OmitXmlDeclaration , out attOmitXmlDeclaration ,
input.Atoms.Standalone , out attStandalone ,
input.Atoms.DocTypePublic , out attDocTypePublic ,
input.Atoms.DocTypeSystem , out attDocTypeSystem ,
input.Atoms.CDataSectionElements, out attCDataSectionElements,
input.Atoms.Indent , out attIndent ,
input.Atoms.MediaType , out attMediaType
);
Output output = compiler.Output;
XmlWriterSettings settings = output.Settings;
int currentPrec = compiler.CurrentPrecedence;
TriState triState;
if (attMethod != null && currentPrec >= output.MethodPrec) {
compiler.EnterForwardsCompatible();
XmlOutputMethod outputMethod;
XmlQualifiedName method = ParseOutputMethod(attMethod, out outputMethod);
if (compiler.ExitForwardsCompatible(input.ForwardCompatibility) && method != null) {
if (currentPrec == output.MethodPrec && !output.Method.Equals(method)) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Method);
}
settings.OutputMethod = outputMethod;
output.Method = method;
output.MethodPrec = currentPrec;
}
}
if (attVersion != null && currentPrec >= output.VersionPrec) {
if (currentPrec == output.VersionPrec && output.Version != attVersion) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Version);
}
//
output.Version = attVersion;
output.VersionPrec = currentPrec;
}
if (attEncoding != null && currentPrec >= output.EncodingPrec) {
try {
// Encoding.GetEncoding() should never throw NotSupportedException, only ArgumentException
Encoding encoding = Encoding.GetEncoding(attEncoding);
if (currentPrec == output.EncodingPrec && output.Encoding != attEncoding) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Encoding);
}
settings.Encoding = encoding;
output.Encoding = attEncoding;
output.EncodingPrec = currentPrec;
}
catch (ArgumentException) {
if (!input.ForwardCompatibility) {
ReportWarning(/*[XT_004]*/Res.Xslt_InvalidEncoding, attEncoding);
}
}
}
if (attOmitXmlDeclaration != null && currentPrec >= output.OmitXmlDeclarationPrec) {
triState = ParseYesNo(attOmitXmlDeclaration, input.Atoms.OmitXmlDeclaration);
if (triState != TriState.Unknown) {
bool omitXmlDeclaration = (triState == TriState.True);
if (currentPrec == output.OmitXmlDeclarationPrec && settings.OmitXmlDeclaration != omitXmlDeclaration) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.OmitXmlDeclaration);
}
settings.OmitXmlDeclaration = omitXmlDeclaration;
output.OmitXmlDeclarationPrec = currentPrec;
}
}
if (attStandalone != null && currentPrec >= output.StandalonePrec) {
triState = ParseYesNo(attStandalone, input.Atoms.Standalone);
if (triState != TriState.Unknown) {
XmlStandalone standalone = (triState == TriState.True) ? XmlStandalone.Yes : XmlStandalone.No;
if (currentPrec == output.StandalonePrec && settings.Standalone != standalone) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Standalone);
}
settings.Standalone = standalone;
output.StandalonePrec = currentPrec;
}
}
if (attDocTypePublic != null && currentPrec >= output.DocTypePublicPrec) {
if (currentPrec == output.DocTypePublicPrec && settings.DocTypePublic != attDocTypePublic) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.DocTypePublic);
}
settings.DocTypePublic = attDocTypePublic;
output.DocTypePublicPrec = currentPrec;
}
if (attDocTypeSystem != null && currentPrec >= output.DocTypeSystemPrec) {
if (currentPrec == output.DocTypeSystemPrec && settings.DocTypeSystem != attDocTypeSystem) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.DocTypeSystem);
}
settings.DocTypeSystem = attDocTypeSystem;
output.DocTypeSystemPrec = currentPrec;
}
if (attCDataSectionElements != null && attCDataSectionElements.Length != 0) {
// Do not check the import precedence, the effective value is the union of all specified values
compiler.EnterForwardsCompatible();
string[] qnames = XmlConvert.SplitString(attCDataSectionElements);
List list = new List();
for (int i = 0; i < qnames.Length; i++) {
list.Add(ResolveQName(/*ignoreDefaultNs:*/false, qnames[i]));
}
if (compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
settings.CDataSectionElements.AddRange(list);
}
}
if (attIndent != null && currentPrec >= output.IndentPrec) {
triState = ParseYesNo(attIndent, input.Atoms.Indent);
if (triState != TriState.Unknown) {
bool indent = (triState == TriState.True);
if (currentPrec == output.IndentPrec && settings.Indent != indent) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.Indent);
}
settings.Indent = indent;
output.IndentPrec = currentPrec;
}
}
if (attMediaType != null && currentPrec >= output.MediaTypePrec) {
if (currentPrec == output.MediaTypePrec && settings.MediaType != attMediaType) {
ReportWarning(/*[XT1560]*/Res.Xslt_AttributeRedefinition, input.Atoms.MediaType);
}
settings.MediaType = attMediaType;
output.MediaTypePrec = currentPrec;
}
CheckNoContent();
}
/*
Default values for method="xml" : version="1.0" indent="no" media-type="text/xml"
Default values for method="html": version="4.0" indent="yes" media-type="text/html"
Default values for method="text": media-type="text/plain"
*/
private void ProcessOutputSettings() {
Output output = compiler.Output;
XmlWriterSettings settings = output.Settings;
// version is ignored, indent="no" by default
if (settings.OutputMethod == XmlOutputMethod.Html && output.IndentPrec == Output.NeverDeclaredPrec) {
settings.Indent = true;
}
if (output.MediaTypePrec == Output.NeverDeclaredPrec) {
settings.MediaType =
settings.OutputMethod == XmlOutputMethod.Xml ? "text/xml" :
settings.OutputMethod == XmlOutputMethod.Html ? "text/html" :
settings.OutputMethod == XmlOutputMethod.Text ? "text/plain" : null;
}
}
private void AttributeSetsDfs(AttributeSet attSet) {
Debug.Assert(attSet != null);
switch (attSet.CycleCheck) {
case CycleCheck.NotStarted:
attSet.CycleCheck = CycleCheck.Processing;
foreach (QilName qname in attSet.UsedAttributeSets) {
AttributeSet usedAttSet;
if (!compiler.AttributeSets.TryGetValue(qname, out usedAttSet)) {
// Prevent reporting the same error twice. The error will be reported in QilGenerator
// while compiling this attribute set.
//Debug.Assert(attSet.Content[0].SourceLine != null);
//compiler.ReportError(/*[XT0710]*/attSet.Content[0].SourceLine, Res.Xslt_NoAttributeSet, qname.QualifiedName);
} else {
AttributeSetsDfs(usedAttSet);
}
}
attSet.CycleCheck = CycleCheck.Completed;
break;
case CycleCheck.Completed:
break;
default:
Debug.Assert(attSet.CycleCheck == CycleCheck.Processing);
Debug.Assert(attSet.Content[0].SourceLine != null);
compiler.ReportError(/*[XT0720]*/attSet.Content[0].SourceLine, Res.Xslt_CircularAttributeSet, attSet.Name.QualifiedName);
break;
}
}
private void ProcessAttributeSets() {
// Check attribute sets for circular references using dfs marking method
foreach (AttributeSet attSet in compiler.AttributeSets.Values) {
AttributeSetsDfs(attSet);
}
}
private void LoadKey(NsDecl stylesheetNsList) {
string attName ;
string attMatch;
string attUse ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/3,
input.Atoms.Name , out attName,
input.Atoms.Match, out attMatch,
input.Atoms.Use , out attUse
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
CheckNoContent();
QilName keyName = CreateXPathQName(attName);
Key key = (Key) SetInfo(f.Key(keyName, attMatch, attUse, input.XslVersion), null, ctxInfo);
if (compiler.Keys.Contains(keyName)) {
// Add to the list of previous definitions
compiler.Keys[keyName].Add(key);
} else {
// First definition of key with that name
List defList = new List();
defList.Add(key);
compiler.Keys.Add(defList);
}
}
private void LoadDecimalFormat(NsDecl stylesheetNsList) {
const int NumAttrs = 11, NumCharAttrs = 8, NumSignAttrs = 7;
string[] attValues = new string[NumAttrs];
string[] attNames = new string[NumAttrs] {
input.Atoms.DecimalSeparator ,
input.Atoms.GroupingSeparator,
input.Atoms.Percent ,
input.Atoms.PerMille ,
input.Atoms.ZeroDigit ,
input.Atoms.Digit ,
input.Atoms.PatternSeparator ,
input.Atoms.MinusSign ,
input.Atoms.Infinity ,
input.Atoms.NaN ,
input.Atoms.Name ,
};
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0, NumAttrs, attNames, attValues);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
// Apply default values
char[] DefaultValues = DecimalFormatDecl.Default.Characters;
char[] characters = new char[NumCharAttrs];
Debug.Assert(NumCharAttrs == DefaultValues.Length);
int idx;
for (idx = 0; idx < NumCharAttrs; idx++) {
characters[idx] = ParseCharAttribute(attValues[idx], DefaultValues[idx], attNames[idx]);
}
string attInfinity = attValues[idx++];
string attNaN = attValues[idx++];
string attName = attValues[idx++];
Debug.Assert(idx == NumAttrs);
if (attInfinity == null) {
attInfinity = DecimalFormatDecl.Default.InfinitySymbol;
}
if (attNaN == null) {
attNaN = DecimalFormatDecl.Default.NanSymbol;
}
// Check all NumSignAttrs signs are distinct
for (int i = 0; i < NumSignAttrs; i++) {
for (int j = i+1; j < NumSignAttrs; j++) {
if (characters[i] == characters[j]) {
ReportError(/*[XT1300]*/Res.Xslt_DecimalFormatSignsNotDistinct, attNames[i], attNames[j]);
break;
}
}
}
XmlQualifiedName name;
if (attName == null) {
// Use name="" for the default decimal-format
name = new XmlQualifiedName();
} else {
compiler.EnterForwardsCompatible();
name = ResolveQName(/*ignoreDefaultNs:*/true, attName);
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
name = new XmlQualifiedName();
}
}
if (compiler.DecimalFormats.Contains(name)) {
// Check all attributes have the same values
DecimalFormatDecl format = compiler.DecimalFormats[name];
for (idx = 0; idx < NumCharAttrs; idx++) {
if (characters[idx] != format.Characters[idx]) {
ReportError(/*[XT1290]*/Res.Xslt_DecimalFormatRedefined, attNames[idx], char.ToString(characters[idx]));
}
}
if (attInfinity != format.InfinitySymbol) {
ReportError(/*[XT1290]*/Res.Xslt_DecimalFormatRedefined, attNames[idx], attInfinity);
}
idx++;
if (attNaN != format.NanSymbol) {
ReportError(/*[XT1290]*/Res.Xslt_DecimalFormatRedefined, attNames[idx], attNaN);
}
idx++;
Debug.Assert(name.Equals(format.Name));
idx++;
Debug.Assert(idx == NumAttrs);
} else {
// Add format to the global collection
DecimalFormatDecl format = new DecimalFormatDecl(name, attInfinity, attNaN, new string(characters));
compiler.DecimalFormats.Add(format);
}
CheckNoContent();
}
private void LoadNamespaceAlias(NsDecl stylesheetNsList) {
string attStylesheetPrefix;
string attResultPrefix ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/2,
input.Atoms.StylesheetPrefix, out attStylesheetPrefix,
input.Atoms.ResultPrefix , out attResultPrefix
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
CheckNoContent();
string stylesheetNsUri = null;
string resultNsUri = null;
if (attStylesheetPrefix == null) {
// Attribute is missing
} else if (attStylesheetPrefix.Length == 0) {
ReportError(/*[XT_005]*/Res.Xslt_EmptyNsAlias, input.Atoms.StylesheetPrefix);
} else {
if (attStylesheetPrefix == "#default") {
attStylesheetPrefix = string.Empty;
}
stylesheetNsUri = input.LookupXmlNamespace(attStylesheetPrefix);
}
if (attResultPrefix == null) {
// Attribute is missing
} else if (attResultPrefix.Length == 0) {
ReportError(/*[XT_005]*/Res.Xslt_EmptyNsAlias, input.Atoms.ResultPrefix);
} else {
if (attResultPrefix == "#default") {
attResultPrefix = string.Empty;
}
resultNsUri = input.LookupXmlNamespace(attResultPrefix);
}
if (stylesheetNsUri == null || resultNsUri == null) {
// At least one of attributes is missing or invalid
return;
}
if (compiler.SetNsAlias(stylesheetNsUri, resultNsUri, attResultPrefix, curStylesheet.ImportPrecedence)) {
// Namespace alias redefinition
ReportWarning(/*[XT0810]*/Res.Xslt_DupNsAlias, stylesheetNsUri);
}
}
private void LoadAttributeSet(NsDecl stylesheetNsList) {
string attName ;
string attUseAttributeSets;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Name , out attName ,
input.Atoms.UseAttributeSets, out attUseAttributeSets
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
QilName attSetName = CreateXPathQName(attName);
AttributeSet attSet;
if (!curStylesheet.AttributeSets.TryGetValue(attSetName, out attSet)) {
// First definition for attSetName within this stylesheet
curStylesheet.AttributeSets[attSetName] = attSet = f.AttributeSet(attSetName);
if (!compiler.AttributeSets.ContainsKey(attSetName)) {
// First definition for attSetName overall, adding it to the list here
// to ensure stable order of prototemplate functions in QilExpression
compiler.AllTemplates.Add(attSet);
}
}
List content = ParseUseAttributeSets(attUseAttributeSets, ctxInfo.lineInfo);
foreach (XslNode useAttSet in content) {
Debug.Assert(useAttSet.NodeType == XslNodeType.UseAttributeSet);
attSet.UsedAttributeSets.Add(useAttSet.Name);
}
/* Process children */
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Element:
// Only xsl:attribute's are allowed here
if (input.IsXsltNamespace() && input.IsKeyword(input.Atoms.Attribute)) {
AddInstruction(content, XslAttribute());
} else {
ReportError(/*[XT_006]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.AttributeSet);
input.SkipNode();
}
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT_006]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.AttributeSet);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
attSet.AddContent(SetInfo(f.List(), LoadEndTag(content), ctxInfo));
}
private void LoadGlobalVariableOrParameter(NsDecl stylesheetNsList, XslNodeType nodeType) {
VarPar var = XslVarPar(nodeType);
// Preserving namespaces to parse content later
var.Namespaces = MergeNamespaces(var.Namespaces, stylesheetNsList);
if (!curStylesheet.AddVarPar(var)) {
ReportError(/*[XT0630]*/Res.Xslt_DupGlobalVariable, var.Name.QualifiedName);
}
}
//: http://www.w3.org/TR/xslt#section-Defining-Template-Rules
private void LoadTemplate(NsDecl stylesheetNsList) {
Debug.Assert(curTemplate == null);
string attMatch ;
string attName ;
string attPriority;
string attMode ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Match , out attMatch ,
input.Atoms.Name , out attName ,
input.Atoms.Priority, out attPriority,
input.Atoms.Mode , out attMode
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
if (attMatch == null) {
if (attName == null) {
ReportError(/*[XT_007]*/Res.Xslt_BothMatchNameAbsent);
}
if (attMode != null) {
ReportError(/*[XT_008]*/Res.Xslt_ModeWithoutMatch);
attMode = null;
}
if (attPriority != null) {
// In XSLT 2.0 this is an error
ReportWarning(/*[XT_008]*/Res.Xslt_PriorityWithoutMatch);
}
}
QilName tmplName = null;
if (attName != null) {
compiler.EnterForwardsCompatible();
tmplName = CreateXPathQName(attName);
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
tmplName = null;
}
}
double priority = double.NaN;
if (attPriority != null) {
priority = XPathConvert.StringToDouble(attPriority);
if (double.IsNaN(priority) && !input.ForwardCompatibility) {
ReportError(/*[XT0530]*/Res.Xslt_InvalidAttrValue, input.Atoms.Priority, attPriority);
}
}
curTemplate = f.Template(tmplName, attMatch, ParseMode(attMode), priority, input.XslVersion);
// Template without match considered to not have mode and can't call xsl:apply-imports
input.CanHaveApplyImports = (attMatch != null);
SetInfo(curTemplate,
LoadEndTag(LoadInstructions(InstructionFlags.AllowParam)), ctxInfo
);
if (!curStylesheet.AddTemplate(curTemplate)) {
ReportError(/*[XT0660]*/Res.Xslt_DupTemplateName, curTemplate.Name.QualifiedName);
}
curTemplate = null;
}
private void LoadScript(NsDecl stylesheetNsList) {
string attLanguage ;
string attImplementsPrefix;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.ImplementsPrefix, out attImplementsPrefix,
input.Atoms.Language , out attLanguage
);
ctxInfo.nsList = MergeNamespaces(ctxInfo.nsList, stylesheetNsList);
string scriptNs = null;
if (attImplementsPrefix == null) {
// Attribute is missing
} else if (attImplementsPrefix.Length == 0) {
ReportError(/*[XT_009]*/Res.Xslt_EmptyAttrValue, input.Atoms.ImplementsPrefix, attImplementsPrefix);
} else {
scriptNs = input.LookupXmlNamespace(attImplementsPrefix);
if (scriptNs == XmlReservedNs.NsXslt) {
ReportError(/*[XT_036]*/Res.Xslt_ScriptXsltNamespace);
scriptNs = null;
}
}
if (scriptNs == null) {
scriptNs = compiler.CreatePhantomNamespace();
}
if (attLanguage == null) {
attLanguage = "jscript";
}
if (! compiler.Settings.EnableScript) {
compiler.Scripts.ScriptClasses[scriptNs] = null;
input.SkipNode();
return;
}
ScriptClass scriptClass;
StringBuilder scriptCode = new StringBuilder();
string uriString = input.Uri;
int lineNumber = 0;
int lastEndLine = 0;
scriptClass = compiler.Scripts.GetScriptClass(scriptNs, attLanguage, (IErrorHelper)this);
if (scriptClass == null) {
input.SkipNode();
return;
}
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Text:
int startLine = input.StartLine;
int endLine = input.EndLine;
if (scriptCode.Length == 0) {
lineNumber = startLine;
} else if (lastEndLine < startLine) {
// A multiline comment, a PI, or an unrecognized element encountered within
// this script block. Insert missed '\n' characters here; otherwise line numbers
// in error messages and in the debugger will be ----ed up. This action may spoil
// the script if the current position is situated in the middle of some identifier
// or string literal; however we hope users will not put XML nodes there.
scriptCode.Append('\n', startLine - lastEndLine);
}
scriptCode.Append(input.Value);
lastEndLine = endLine;
break;
case XPathNodeType.Element:
if (input.IsNs(input.Atoms.UrnMsxsl) && (input.IsKeyword(input.Atoms.Assembly) || input.IsKeyword(input.Atoms.Using))) {
if (scriptCode.Length != 0) {
ReportError(/*[XT_012]*/Res.Xslt_ScriptNotAtTop, input.QualifiedName);
input.SkipNode();
}
if (input.IsKeyword(input.Atoms.Assembly)) {
LoadMsAssembly(scriptClass);
} else if (input.IsKeyword(input.Atoms.Using)) {
LoadMsUsing(scriptClass);
}
} else {
ReportError(/*[XT_012]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, "msxsl:script");
input.SkipNode();
}
break;
default:
Debug.Assert(
input.NodeType == XPathNodeType.SignificantWhitespace ||
input.NodeType == XPathNodeType.Whitespace
);
// Skip leading whitespaces
if (scriptCode.Length != 0) {
goto case XPathNodeType.Text;
}
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
if (scriptCode.Length == 0) {
lineNumber = input.StartLine;
}
scriptClass.AddScriptBlock(scriptCode.ToString(), uriString, lineNumber, input.StartLine, input.StartPos);
}
private void LoadMsAssembly(ScriptClass scriptClass) {
string attName, attHref;
input.GetAttributes(/*required:*/0,
input.Atoms.Name, out attName,
input.Atoms.Href, out attHref
);
string asmLocation = null;
if (attName != null) {
if (attHref != null) {
ReportError(/*[XT_046]*/Res.Xslt_AssemblyBothNameHrefPresent);
} else {
try {
asmLocation = Assembly.Load(attName).Location;
}
catch {
AssemblyName asmName = new AssemblyName(attName);
// If the assembly is simply named, let CodeDomProvider and Fusion resolve it
byte[] publicKeyToken = asmName.GetPublicKeyToken();
if ((publicKeyToken == null || publicKeyToken.Length == 0) && asmName.Version == null) {
asmLocation = asmName.Name + ".dll";
} else {
throw;
}
}
}
} else if (attHref != null) {
asmLocation = Assembly.LoadFrom(ResolveUri(attHref, input.BaseUri).ToString()).Location;
scriptClass.refAssembliesByHref = true;
} else {
ReportError(/*[XT_045]*/Res.Xslt_AssemblyBothNameHrefAbsent);
}
if (asmLocation != null) {
scriptClass.refAssemblies.Add(asmLocation);
}
CheckNoContent();
}
private void LoadMsUsing(ScriptClass scriptClass) {
string attNamespace;
input.GetAttributes(/*required:*/1, input.Atoms.Namespace, out attNamespace);
if (attNamespace != null) {
scriptClass.nsImports.Add(attNamespace);
}
CheckNoContent();
}
// ----------------- Template level methods --------------------------
// Each instruction in AST tree has nsdecl list attuched to it.
// Load*() methods do this treek. Xsl*() methods rely on LoadOneInstruction() to do this.
// ToDo: check how LoadUnknown*() follows this gideline!
private enum InstructionFlags {
NoParamNoSort = 0x00,
AllowParam = 0x01,
AllowSort = 0x02,
}
private List LoadInstructions() {
return LoadInstructions(new List(), InstructionFlags.NoParamNoSort);
}
private List LoadInstructions(InstructionFlags flags) {
return LoadInstructions(new List(), flags);
}
private List LoadInstructions(List content) {
return LoadInstructions(content, InstructionFlags.NoParamNoSort);
}
private List LoadInstructions(List content, InstructionFlags flags) {
string parentName = input.QualifiedName;
if (input.MoveToFirstChild()) {
bool atTop = true;
XslNode result;
do {
switch (input.NodeType) {
case XPathNodeType.Element:
string nspace = input.NamespaceUri;
string name = input.LocalName;
if (nspace == input.Atoms.UriXsl) {
bool error = false;
if (Ref.Equal(name, input.Atoms.Param)) {
if ((flags & InstructionFlags.AllowParam) == 0) {
ReportError(/*[XT_013]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, parentName);
error = true;
} else if (!atTop) {
// xsl:param's must precede any other children of xsl:template
ReportError(/*[XT_014]*/Res.Xslt_NotAtTop, input.QualifiedName, parentName);
error = true;
}
} else if (Ref.Equal(name, input.Atoms.Sort)) {
if ((flags & InstructionFlags.AllowSort) == 0) {
ReportError(/*[XT_013]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, parentName);
error = true;
} else if (!atTop) {
// xsl:sort's must precede any other children of xsl:for-each
ReportError(/*[XT_014]*/Res.Xslt_NotAtTop, input.QualifiedName, parentName);
error = true;
}
} else {
atTop = false;
}
if (error) {
atTop = false;
input.SkipNode();
continue;
}
result = (
Ref.Equal(name, input.Atoms.ApplyImports ) ? XslApplyImports() :
Ref.Equal(name, input.Atoms.ApplyTemplates ) ? XslApplyTemplates() :
Ref.Equal(name, input.Atoms.CallTemplate ) ? XslCallTemplate() :
Ref.Equal(name, input.Atoms.Copy ) ? XslCopy() :
Ref.Equal(name, input.Atoms.CopyOf ) ? XslCopyOf() :
Ref.Equal(name, input.Atoms.Fallback ) ? XslFallback() :
Ref.Equal(name, input.Atoms.If ) ? XslIf() :
Ref.Equal(name, input.Atoms.Choose ) ? XslChoose() :
Ref.Equal(name, input.Atoms.ForEach ) ? XslForEach() :
Ref.Equal(name, input.Atoms.Message ) ? XslMessage() :
Ref.Equal(name, input.Atoms.Number ) ? XslNumber() :
Ref.Equal(name, input.Atoms.ValueOf ) ? XslValueOf() :
Ref.Equal(name, input.Atoms.Comment ) ? XslComment() :
Ref.Equal(name, input.Atoms.ProcessingInstruction) ? XslProcessingInstruction() :
Ref.Equal(name, input.Atoms.Text ) ? XslText() :
Ref.Equal(name, input.Atoms.Element ) ? XslElement() :
Ref.Equal(name, input.Atoms.Attribute ) ? XslAttribute() :
Ref.Equal(name, input.Atoms.Variable ) ? XslVarPar(XslNodeType.Variable) :
Ref.Equal(name, input.Atoms.Param ) ? XslVarPar(XslNodeType.Param) :
Ref.Equal(name, input.Atoms.Sort ) ? XslSort() :
/*default:*/ LoadUnknownXsltInstruction(parentName)
);
} else {
atTop = false;
result = LoadLiteralResultElement(/*asStylesheet:*/false);
}
break;
case XPathNodeType.SignificantWhitespace:
result = SetLineInfo(f.Text(input.Value), input.BuildLineInfo());
break;
case XPathNodeType.Whitespace:
continue;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
atTop = false;
goto case XPathNodeType.SignificantWhitespace;
}
AddInstruction(content, result);
} while (input.MoveToNextSibling());
input.MoveToParent();
}
return content;
}
// http://www.w3.org/TR/xslt#apply-imports
private XslNode XslApplyImports() {
ContextInfo ctxInfo = input.GetAttributes();
if (!input.CanHaveApplyImports) {
ReportError(/*[XT_015]*/Res.Xslt_InvalidApplyImports);
input.SkipNode();
return null;
}
CheckNoContent();
return SetInfo(f.ApplyImports(/*Mode:*/curTemplate.Mode, curStylesheet, input.XslVersion), null, ctxInfo);
}
// http://www.w3.org/TR/xslt#section-Applying-Template-Rules
private XslNode XslApplyTemplates() {
string attSelect;
string attMode ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Select, out attSelect,
input.Atoms.Mode , out attMode
);
if (attSelect == null) {
attSelect = "node()";
}
QilName mode = ParseMode(attMode);
List content = new List();
/* Process children */
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Element:
if (input.IsXsltNamespace()) {
if (input.IsKeyword(input.Atoms.WithParam)) {
XslNode withParam = XslVarPar(XslNodeType.WithParam);
CheckWithParam(content, withParam);
AddInstruction(content, withParam);
break;
} else if (input.IsKeyword(input.Atoms.Sort)) {
AddInstruction(content, XslSort());
break;
}
}
ReportError(/*[XT_016]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.ApplyTemplates);
input.SkipNode();
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT_016]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.ApplyTemplates);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
ctxInfo.SaveExtendedLineInfo(input);
return SetInfo(f.ApplyTemplates(mode, attSelect, ctxInfo, input.XslVersion),
content, ctxInfo
);
}
// http://www.w3.org/TR/xslt#named-templates
private XslNode XslCallTemplate() {
string attName;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Name, out attName);
List content = new List();
/* Process children */
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Element:
if (input.IsXsltNamespace() && input.IsKeyword(input.Atoms.WithParam)) {
XslNode withParam = XslVarPar(XslNodeType.WithParam);
CheckWithParam(content, withParam);
AddInstruction(content, withParam);
} else {
ReportError(/*[XT_017]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.CallTemplate);
input.SkipNode();
}
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT_017]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.CallTemplate);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
ctxInfo.SaveExtendedLineInfo(input);
return SetInfo(f.CallTemplate(CreateXPathQName(attName), ctxInfo),
content, ctxInfo
);
}
private XslNode XslCopy() {
string attUseAttributeSets;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0, input.Atoms.UseAttributeSets, out attUseAttributeSets);
List content = ParseUseAttributeSets(attUseAttributeSets, ctxInfo.lineInfo);
return SetInfo(f.Copy(), LoadEndTag(LoadInstructions(content)), ctxInfo);
}
private XslNode XslCopyOf() {
string attSelect;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Select, out attSelect);
CheckNoContent();
return SetInfo(f.CopyOf(attSelect, input.XslVersion), null, ctxInfo);
}
// http://www.w3.org/TR/xslt#fallback
// See LoadFallbacks() for real fallback implementation
private XslNode XslFallback() {
input.GetAttributes();
input.SkipNode();
return null;
}
private XslNode XslIf() {
string attTest;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Test, out attTest);
return SetInfo(f.If(attTest, input.XslVersion), LoadInstructions(), ctxInfo);
}
private XslNode XslChoose() {
ContextInfo ctxInfo = input.GetAttributes();
List content = new List();
bool otherwise = false;
bool when = false;
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Element:
XslNode node = null;
if (Ref.Equal(input.NamespaceUri, input.Atoms.UriXsl)) {
if (Ref.Equal(input.LocalName, input.Atoms.When)) {
if (otherwise) {
ReportError(/*[XT_018]*/Res.Xslt_WhenAfterOtherwise);
input.SkipNode();
continue;
} else {
when = true;
node = XslIf();
}
} else if (Ref.Equal(input.LocalName, input.Atoms.Otherwise)) {
if (otherwise) {
ReportError(/*[XT_019]*/Res.Xslt_DupOtherwise);
input.SkipNode();
continue;
} else {
otherwise = true;
node = XslOtherwise();
}
}
}
if (node == null) {
ReportError(/*[XT_020]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.Choose);
input.SkipNode();
continue;
}
AddInstruction(content, node);
break;
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Text);
ReportError(/*[XT_020]*/Res.Xslt_TextNodesNotAllowed, input.Atoms.Choose);
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
if (!when) {
ReportError(/*[XT_021]*/Res.Xslt_NoWhen);
}
return SetInfo(f.Choose(), content, ctxInfo);
}
private XslNode XslOtherwise() {
ContextInfo ctxInfo = input.GetAttributes();
return SetInfo(f.Otherwise(), LoadInstructions(), ctxInfo);
}
private XslNode XslForEach() {
string attSelect;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Select, out attSelect);
// The current template rule becomes null, so we must not allow xsl:apply-import's within this element
input.CanHaveApplyImports = false;
List content = LoadInstructions(InstructionFlags.AllowSort);
ctxInfo.SaveExtendedLineInfo(input);
return SetInfo(f.ForEach(attSelect, ctxInfo, input.XslVersion),
content, ctxInfo
);
}
// http://www.w3.org/TR/xslt#message
private XslNode XslMessage() {
string attTerminate;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0, input.Atoms.Terminate, out attTerminate);
bool terminate = ParseYesNo(attTerminate, /*attName:*/input.Atoms.Terminate) == TriState.True;
return SetInfo(f.Message(terminate), LoadEndTag(LoadInstructions()), ctxInfo);
}
// http://www.w3.org/TR/xslt#number
private XslNode XslNumber() {
string attLevel ;
string attCount ;
string attFrom ;
string attValue ;
string attFormat ;
string attLang ;
string attLetterValue ;
string attGroupingSeparator;
string attGroupingSize ;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Level , out attLevel ,
input.Atoms.Count , out attCount ,
input.Atoms.From , out attFrom ,
input.Atoms.Value , out attValue ,
input.Atoms.Format , out attFormat ,
input.Atoms.Lang , out attLang ,
input.Atoms.LetterValue , out attLetterValue ,
input.Atoms.GroupingSeparator, out attGroupingSeparator,
input.Atoms.GroupingSize , out attGroupingSize
);
// Default values for xsl:number : level="single" format="1"
NumberLevel level;
switch (attLevel) {
case "single" : level = NumberLevel.Single ; break;
case "multiple": level = NumberLevel.Multiple; break;
case "any" : level = NumberLevel.Any ; break;
default:
if (attLevel != null && !input.ForwardCompatibility) {
ReportError(/*[XT_022]*/Res.Xslt_InvalidAttrValue, input.Atoms.Level, attLevel);
}
goto case "single";
}
if (attFormat == null) {
attFormat = "1";
}
CheckNoContent();
return SetInfo(
f.Number(level, attCount, attFrom, attValue,
attFormat, attLang, attLetterValue, attGroupingSeparator, attGroupingSize,
input.XslVersion
),
null, ctxInfo
);
}
// http://www.w3.org/TR/xslt#value-of
private XslNode XslValueOf() {
string attSelect ;
string attDisableOutputEscaping;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Select , out attSelect,
input.Atoms.DisableOutputEscaping, out attDisableOutputEscaping
);
bool doe = ParseYesNo(attDisableOutputEscaping, /*attName:*/ input.Atoms.DisableOutputEscaping) == TriState.True;
CheckNoContent();
return SetInfo(f.XslNode(doe ? XslNodeType.ValueOfDoe : XslNodeType.ValueOf, null, attSelect, input.XslVersion),
null, ctxInfo
);
}
// xsl:variable http://www.w3.org/TR/xslt#local-variables
// xsl:param http://www.w3.org/TR/xslt#element-param
// xsl:with-param http://www.w3.org/TR/xslt#element-with-param
private VarPar XslVarPar(XslNodeType nodeType) {
Debug.Assert(
nodeType == XslNodeType.Variable && input.LocalName == input.Atoms.Variable ||
nodeType == XslNodeType.Param && input.LocalName == input.Atoms.Param ||
nodeType == XslNodeType.WithParam && input.LocalName == input.Atoms.WithParam
);
string attName ;
string attSelect;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Name , out attName,
input.Atoms.Select, out attSelect
);
List content = LoadInstructions();
// Load the end tag only if the content is not empty
if (content.Count != 0) {
content = LoadEndTag(content);
}
if (attSelect != null && content.Count != 0) {
ReportError(/*[XT0620]*/Res.Xslt_VariableCntSel2, attName);
}
VarPar result = f.VarPar(nodeType, CreateXPathQName(attName), attSelect, input.XslVersion);
SetInfo(result, content, ctxInfo);
return result;
}
// http://www.w3.org/TR/xslt#section-Creating-Comments
private XslNode XslComment() {
ContextInfo ctxInfo = input.GetAttributes();
return SetInfo(f.Comment(),
LoadEndTag(LoadInstructions()), ctxInfo
);
}
// http://www.w3.org/TR/xslt#section-Creating-Processing-Instructions
private XslNode XslProcessingInstruction() {
string attName;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1, input.Atoms.Name, out attName);
if (attName == null) {
attName = compiler.PhantomNCName;
}
return SetInfo(f.PI(attName, input.XslVersion),
LoadEndTag(LoadInstructions()), ctxInfo
);
}
// http://www.w3.org/TR/xslt#section-Creating-Text
private XslNode XslText() {
string attDisableOutputEscaping;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,input.Atoms.DisableOutputEscaping, out attDisableOutputEscaping);
bool doe = ParseYesNo(attDisableOutputEscaping, /*attName:*/ input.Atoms.DisableOutputEscaping) == TriState.True;
SerializationHints hints = doe ? SerializationHints.DisableOutputEscaping : SerializationHints.None;
// We are not using StringBuilder here because in most cases there will be just one text node.
List content = new List();
// xsl:text may contain multiple child text nodes separated by comments and PIs, which are ignored by XsltInput
if (input.MoveToFirstChild()) {
do {
switch (input.NodeType) {
case XPathNodeType.Text:
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
content.Add(f.Text(input.Value, hints));
break;
default:
Debug.Assert(input.NodeType == XPathNodeType.Element);
ReportError(/*[XT_023]*/Res.Xslt_UnexpectedElement, input.QualifiedName, input.Atoms.Text);
input.SkipNode();
break;
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
// Empty xsl:text elements will be ignored
return SetInfo(f.List(), content, ctxInfo);
}
// http://www.w3.org/TR/xslt#section-Creating-Elements-with-xsl:element
private XslNode XslElement() {
string attName ;
string attNamespace ;
string attUseAttributeSets;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Name , out attName ,
input.Atoms.Namespace , out attNamespace ,
input.Atoms.UseAttributeSets, out attUseAttributeSets
);
if (attName == null) {
attName = compiler.PhantomNCName;
}
if (attNamespace == XmlReservedNs.NsXmlNs) {
ReportError(/*[XT_024]*/Res.Xslt_ReservedNS, attNamespace);
}
List content = ParseUseAttributeSets(attUseAttributeSets, ctxInfo.lineInfo);
return SetInfo(f.Element(attName, attNamespace, input.XslVersion),
LoadEndTag(LoadInstructions(content)), ctxInfo
);
}
// http://www.w3.org/TR/xslt#creating-attributes
private XslNode XslAttribute() {
string attName ;
string attNamespace;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/1,
input.Atoms.Name , out attName ,
input.Atoms.Namespace, out attNamespace
);
if (attName == null) {
attName = compiler.PhantomNCName;
}
if (attNamespace == XmlReservedNs.NsXmlNs) {
ReportError(/*[XT_024]*/Res.Xslt_ReservedNS, attNamespace);
}
return SetInfo(f.Attribute(attName, attNamespace, input.XslVersion),
LoadEndTag(LoadInstructions()), ctxInfo
);
}
// http://www.w3.org/TR/xslt#sorting
private XslNode XslSort() {
string attSelect ;
string attLang ;
string attDataType ;
string attOrder ;
string attCaseOrder;
ContextInfo ctxInfo = input.GetAttributes(/*required:*/0,
input.Atoms.Select , out attSelect ,
input.Atoms.Lang , out attLang ,
input.Atoms.DataType , out attDataType ,
input.Atoms.Order , out attOrder ,
input.Atoms.CaseOrder, out attCaseOrder
);
if (attSelect == null) {
attSelect = ".";
}
CheckNoContent();
return SetInfo(f.Sort(attSelect, attLang, attDataType, attOrder, attCaseOrder, input.XslVersion),
null, ctxInfo
);
}
// http://www.w3.org/TR/xslt#literal-result-element
private XslNode LoadLiteralResultElement(bool asStylesheet) {
Debug.Assert(input.NodeType == XPathNodeType.Element);
string prefix = input.Prefix;
string name = input.LocalName;
string nsUri = input.NamespaceUri;
string version = null;
string extPrefixes = null;
string exclPrefixes = null;
string useAttrSets = null;
string versionQName = null;
List content = new List();
ContextInfo ctxInfo = new ContextInfo(input);
/* Process literal attributes */
while (input.MoveToNextAttOrNs()) {
if (input.NodeType == XPathNodeType.Namespace) {
ctxInfo.AddNamespace(input);
} else {
Debug.Assert(input.NodeType == XPathNodeType.Attribute);
ctxInfo.AddAttribute(input);
if (input.IsXsltNamespace()) {
if (input.LocalName == input.Atoms.Version) {
version = input.Value;
versionQName = input.QualifiedName;
} else if (input.LocalName == input.Atoms.ExtensionElementPrefixes) {
extPrefixes = input.Value;
} else if (input.LocalName == input.Atoms.ExcludeResultPrefixes) {
exclPrefixes = input.Value;
} else if (input.LocalName == input.Atoms.UseAttributeSets) {
useAttrSets = input.Value;
} else {
// just ignore it
}
} else {
XslNode att = f.LiteralAttribute(f.QName(input.LocalName, input.NamespaceUri, input.Prefix), input.Value, input.XslVersion);
// QilGenerator takes care of AVTs, and needs line info
AddInstruction(content, SetLineInfo(att, ctxInfo.lineInfo));
}
}
}
ctxInfo.Finish(input);
if (version != null) {
// Enable forwards-compatible behavior if version attribute is not "1.0"
input.SetVersion(version, versionQName);
} else {
if (asStylesheet) {
if (Ref.Equal(nsUri, input.Atoms.UriWdXsl) && Ref.Equal(name, input.Atoms.Stylesheet)) {
ReportError(/*[XT_025]*/Res.Xslt_WdXslNamespace);
} else {
ReportError(/*[XT0150]*/Res.Xslt_WrongStylesheetElement);
}
input.SkipNode();
return null;
}
}
// Parse xsl:extension-element-prefixes attribute (now that forwards-compatible mode is known)
InsertExNamespaces(extPrefixes, ref ctxInfo.nsList, /*extensions:*/true);
XslNode result;
// Now we can determine whether this element is an extension element (spec section 14.1)
if (input.IsExtensionNamespace(nsUri)) {
// This is not a literal result element, so drop all attributes we have collected
content = LoadFallbacks(name);
result = f.List();
} else {
// Parse xsl:exclude-result-prefixes attribute (now that it's known this is a literal result element)
InsertExNamespaces(exclPrefixes, ref ctxInfo.nsList, /*extensions:*/false);
// Insert all attribute sets at the beginning of content
content.InsertRange(0, ParseUseAttributeSets(useAttrSets, ctxInfo.lineInfo));
content = LoadEndTag(LoadInstructions(content));
result = f.LiteralElement(f.QName(name, nsUri, prefix));
}
return SetInfo(result, content, ctxInfo);
}
private void CheckWithParam(List content, XslNode withParam) {
Debug.Assert(content != null && withParam != null);
Debug.Assert(withParam.NodeType == XslNodeType.WithParam);
foreach (XslNode node in content) {
if (node.NodeType == XslNodeType.WithParam && node.Name.Equals(withParam.Name)) {
ReportError(/*[XT0670]*/Res.Xslt_DuplicateWithParam, withParam.Name.QualifiedName);
break;
}
}
}
private static void AddInstruction(List content, XslNode instruction) {
Debug.Assert(content != null);
if (instruction != null) {
content.Add(instruction);
}
}
private List LoadEndTag(List content) {
Debug.Assert(content != null);
if (compiler.IsDebug && !input.IsEmptyElement) {
AddInstruction(content, SetLineInfo(f.Nop(), input.BuildLineInfo()));
}
return content;
}
private XslNode LoadUnknownXsltInstruction(string parentName) {
if (!input.ForwardCompatibility) {
ReportError(/*[XT_026]*/Res.Xslt_UnexpectedElementQ, input.QualifiedName, parentName);
input.SkipNode();
return null;
} else {
ContextInfo ctxInfo = input.GetAttributes();
List fallbacks = LoadFallbacks(input.LocalName);
return SetInfo(f.List(), fallbacks, ctxInfo);
}
}
private List LoadFallbacks(string instrName) {
List fallbacksArray = new List();
//
/* Process children */
if (input.MoveToFirstChild()) {
do {
if (
Ref.Equal(input.NamespaceUri, input.Atoms.UriXsl ) &&
Ref.Equal(input.LocalName , input.Atoms.Fallback)
) {
ContextInfo ctxInfo = input.GetAttributes();
fallbacksArray.Add(SetInfo(f.List(), LoadInstructions(), ctxInfo));
} else {
input.SkipNode();
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
// Generate runtime error if there is no fallbacks
if (fallbacksArray.Count == 0) {
fallbacksArray.Add(
f.Error(XslLoadException.CreateMessage(input.BuildLineInfo(), Res.Xslt_UnknownExtensionElement, instrName))
);
}
return fallbacksArray;
}
// ------------------ little helper methods ---------------------
// Suppresses errors if FCB is enabled
private QilName ParseMode(string qname) {
if (qname == null) {
return nullMode;
}
// mode is always optional attribute
compiler.EnterForwardsCompatible();
QilName mode = CreateXPathQName(qname);
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
mode = nullMode;
}
return mode;
}
// Does not suppress errors
private void ResolveQName(bool ignoreDefaultNs, string qname, out string localName, out string namespaceName, out string prefix) {
if (qname == null) {
// That means stylesheet is incorrect
prefix = compiler.PhantomNCName;
localName = compiler.PhantomNCName;
namespaceName = compiler.CreatePhantomNamespace();
return;
}
if (!compiler.ParseQName(qname, out prefix, out localName, (IErrorHelper)this)) {
namespaceName = compiler.CreatePhantomNamespace();
return;
}
if (ignoreDefaultNs && prefix.Length == 0) {
namespaceName = string.Empty;
} else {
namespaceName = input.LookupXmlNamespace(prefix);
if (namespaceName == null) {
namespaceName = compiler.CreatePhantomNamespace();
}
}
}
// Does not suppress errors
private QilName CreateXPathQName(string qname) {
string prefix, localName, namespaceName;
ResolveQName(/*ignoreDefaultNs:*/true, qname, out localName, out namespaceName, out prefix);
return f.QName(localName, namespaceName, prefix);
}
// Does not suppress errors
private XmlQualifiedName ResolveQName(bool ignoreDefaultNs, string qname) {
string prefix, localName, namespaceName;
ResolveQName(ignoreDefaultNs, qname, out localName, out namespaceName, out prefix);
return new XmlQualifiedName(localName, namespaceName);
}
// Does not suppress errors
private void ParseWhitespaceRules(string elements, bool preserveSpace) {
if (elements != null && elements.Length != 0) {
string[] tokens = XmlConvert.SplitString(elements);
for (int i = 0; i < tokens.Length; i++) {
string prefix, localName, namespaceName;
if (!compiler.ParseNameTest(tokens[i], out prefix, out localName, (IErrorHelper)this)) {
namespaceName = compiler.CreatePhantomNamespace();
} else if (prefix == null || prefix.Length == 0) {
namespaceName = prefix;
} else {
namespaceName = input.LookupXmlNamespace(prefix);
if (namespaceName == null) {
namespaceName = compiler.CreatePhantomNamespace();
}
}
int index = (
(localName == null ? 1 : 0) +
(namespaceName == null ? 1 : 0)
);
curStylesheet.AddWhitespaceRule(index, new WhitespaceRule(localName, namespaceName, preserveSpace));
}
}
}
// Does not suppress errors. In case of error, null is returned.
private XmlQualifiedName ParseOutputMethod(string attValue, out XmlOutputMethod method) {
string prefix, localName, namespaceName;
ResolveQName(/*ignoreDefaultNs:*/true, attValue, out localName, out namespaceName, out prefix);
method = XmlOutputMethod.AutoDetect;
if (compiler.IsPhantomNamespace(namespaceName)) {
return null;
} else if (prefix.Length == 0) {
switch (localName) {
case "xml" : method = XmlOutputMethod.Xml; break;
case "html" : method = XmlOutputMethod.Html; break;
case "text" : method = XmlOutputMethod.Text; break;
default:
ReportError(/*[XT1570]*/Res.Xslt_InvalidAttrValue, input.Atoms.Method, attValue);
return null;
}
} else {
if (!input.ForwardCompatibility) {
ReportWarning(/*[XT1570]*/Res.Xslt_InvalidMethod, attValue);
}
}
return new XmlQualifiedName(localName, namespaceName);
}
// Suppresses errors if FCB is enabled
private List ParseUseAttributeSets(string useAttributeSets, ISourceLineInfo lineInfo) {
List result = new List();
if (useAttributeSets != null && useAttributeSets.Length != 0) {
compiler.EnterForwardsCompatible();
string[] qnames = XmlConvert.SplitString(useAttributeSets);
for (int idx = 0; idx < qnames.Length; idx++) {
AddInstruction(result, SetLineInfo(f.UseAttributeSet(CreateXPathQName(qnames[idx])), lineInfo));
}
if (!compiler.ExitForwardsCompatible(input.ForwardCompatibility)) {
// There were errors in the list, ignore the whole list
result = new List();
}
}
return result;
}
// Suppresses errors if FCB is enabled
private TriState ParseYesNo(string val, string attName) {
switch (val) {
case null : return TriState.Unknown;
case "yes": return TriState.True;
case "no" : return TriState.False;
default:
if (!input.ForwardCompatibility) {
ReportError(/*[XT_028]*/Res.Xslt_BistateAttribute, attName, "yes", "no");
}
return TriState.Unknown;
}
}
// Suppresses errors if FCB is enabled
private char ParseCharAttribute(string attValue, char defaultValue, string attName) {
if (attValue == null) {
return defaultValue;
} else if (attValue.Length != 1) {
if (!input.ForwardCompatibility) {
ReportError(/*[XT_029]*/Res.Xslt_CharAttribute, attName);
}
return defaultValue;
}
return attValue[0];
}
private void CheckNoContent() {
string elementName = input.QualifiedName;
bool error = false;
// Really EMPTY means no content at all, but for the sake of compatibility with MSXML we allow whitespaces
if (input.MoveToFirstChild()) {
do {
// NOTE: XPathNodeType.SignificantWhitespace are not allowed here
if (input.NodeType != XPathNodeType.Whitespace) {
if (!error) {
ReportError(/*[XT0260]*/Res.Xslt_NotEmptyContents, elementName);
error = true;
}
input.SkipNode();
}
} while (input.MoveToNextSibling());
input.MoveToParent();
}
}
private static XslNode SetLineInfo(XslNode node, ISourceLineInfo lineInfo) {
Debug.Assert(node != null);
node.SourceLine = lineInfo;
return node;
}
private static void SetContent(XslNode node, List content) {
Debug.Assert(node != null);
if (content != null && content.Count == 0) {
content = null; // Actualy we can reuse this ArayList.
}
node.SetContent(content);
}
private static XslNode SetInfo(XslNode to, List content, ContextInfo info) {
Debug.Assert(to != null);
to.Namespaces = info.nsList;
SetContent(to, content);
SetLineInfo(to, info.lineInfo);
return to;
}
// NOTE! We inverting namespace order that is irelevant for namespace of the same node, but
// for included styleseets we don't keep stylesheet as a node and adding it's namespaces to
// each toplevel element by MergeNamespaces().
// Namespaces of stylesheet can be overriden in template and to make this works correclety we
// should attache them after NsDec of top level elements.
// Toplevel element almost never contais NsDecl and in practice node duplication will not happened, but if they have
// we should copy NsDecls of stylesheet localy in toplevel elements.
private static NsDecl MergeNamespaces(NsDecl thisList, NsDecl parentList) {
if (parentList == null) {
return thisList;
}
if (thisList == null) {
return parentList;
}
// Clone all nodes and attache them to nodes of thisList;
while (parentList != null) {
bool duplicate = false;
for (NsDecl tmp = thisList; tmp != null; tmp = tmp.Prev) {
if (Ref.Equal(tmp.Prefix, parentList.Prefix) && (
tmp.Prefix != null || // Namespace declaration
tmp.NsUri == parentList.NsUri // Extension or excluded namespace
)) {
duplicate = true;
break;
}
}
if (!duplicate) {
thisList = new NsDecl(thisList, parentList.Prefix, parentList.NsUri);
}
parentList = parentList.Prev;
}
return thisList;
}
// -------------------------------- IErrorHelper --------------------------------
public void ReportError(string res, params string[] args) {
compiler.ReportError(input.BuildLineInfo(), res, args);
}
public void ReportWarning(string res, params string[] args) {
compiler.ReportWarning(input.BuildLineInfo(), res, args);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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