Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Speech / Src / Internal / SrgsParser / XmlParser.cs / 1 / XmlParser.cs
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// Description:
// The Srgs xml parser parse takes as input an xml reader and the IElementFactory
// interface. With this virtualization scheme, the srgs parser do not create
// directly Srgs elements. Instead methods on a set of interfaces for each
// Srgs Element creates the element themselve. The underlying implementation
// for each elements is different for the SrgsDocument class and the Srgs
// Compiler.
//
// Interface definition for the IElement
// History:
// 6/1/2004 jeanfp Created
//----------------------------------------------------------------------------using System;
using System;
using System.Globalization;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Xml;
using System.Collections;
using System.Collections.Generic;
using System.Speech.Recognition.SrgsGrammar;
#pragma warning disable 1634, 1691 // Allows suppression of certain PreSharp messages.
#pragma warning disable 56524 // The _reader and and _xmlReader are not created in this module and should not be disposed
// Remove all the check for null or empty warnings
#pragma warning disable 56507
namespace System.Speech.Internal.SrgsParser
{
internal class XmlParser : ISrgsParser
{
//*******************************************************************
//
// Constructors
//
//*******************************************************************
#region Constructors
internal XmlParser (XmlReader reader, Uri uri)
{
_reader = reader;
_xmlTextReader = reader as XmlTextReader;
// Try to guess the Uri
if (uri == null)
{
// Keep a reference to the filename and XmlTextReader if it is one.
if (_xmlTextReader != null && _xmlTextReader.BaseURI.Length > 0)
{
try
{
uri = new Uri (_xmlTextReader.BaseURI);
}
#pragma warning disable 56502 // Remove the empty catch statements warnings
catch (UriFormatException)
{
}
#pragma warning restore 56502
}
}
// Saves the path to the file and the file name
if (uri != null)
{
// Saves the full path to the file
_filename = !uri.IsAbsoluteUri || !uri.IsFile ? uri.OriginalString : uri.LocalPath;
// Saves the filename without the path
int iPosSlash = _filename.LastIndexOfAny (_SlashBackSlash);
_shortFilename = iPosSlash >= 0 ? _filename.Substring (iPosSlash + 1) : _filename;
}
}
#endregion
//*******************************************************************
//
// Internal Methods
//
//********************************************************************
#region Internal Methods
// Initializes the object from a stream containg SRGS in XML
public void Parse ()
{
try
{
bool isGrammarElementFound = false;
while (_reader.Read ())
{
// Ignore XmlDeclaration, ProcessingInstruction, Comment, DocumentType, Entity, Notation.
if (_reader.NodeType == XmlNodeType.Element && _reader.LocalName == "grammar")
{
if (_reader.NamespaceURI != srgsNamespace)
{
ThrowSrgsException (SRID.InvalidSrgsNamespace);
}
if (isGrammarElementFound)
{
ThrowSrgsException (SRID.GrammarDefTwice);
}
else
{
ParseGrammar (_reader, _parser.Grammar);
isGrammarElementFound = true;
}
}
}
if (!isGrammarElementFound)
{
ThrowSrgsException (SRID.InvalidSrgs);
}
}
catch (XmlException eXml)
{
_parser.RemoveAllRules ();
ThrowSrgsExceptionWithPosition (_filename, _reader, SR.Get (SRID.InvalidXmlFormat), eXml);
}
catch (FormatException e)
{
// Adds a placeholder for the rule.
// Once all the rules and scripts are read, the placeholder will be replaced with the proper rule.
_parser.RemoveAllRules ();
ThrowSrgsExceptionWithPosition (_filename, _reader, e.Message, e.InnerException);
}
catch
{
// clear all the rules
_parser.RemoveAllRules ();
throw;
}
}
///
/// Break the string into individual tokens and ParseToken() each individual token.
///
/// Token string is a sequence of 0 or more white space delimited tokens.
/// Tokens may also be delimited by double quotes. In these cases, the double
/// quotes token must be surrounded by white space or string boundary.
///
/// Parent element
///
///
///
///
///
internal static void ParseText (IElement parent, string sChars, string pronunciation, string display, float reqConfidence, CreateTokenCallback createTokens)
{
sChars = sChars.Trim (Helpers._achTrimChars);
char [] achToken = sChars.ToCharArray ();
int iTokenEnd = 0;
int cChars = sChars.Length;
for (int i = 0; i < achToken.Length; i = iTokenEnd + 1)
{
if (achToken [i] == ' ') // Skip white spaces
{
iTokenEnd = i;
continue;
}
// Find the next token
if (achToken [i] == '"')
{
// Quoted string. Find end of quoted string.
iTokenEnd = ++i;
while ((iTokenEnd < cChars) && (achToken [iTokenEnd] != '"'))
{
iTokenEnd++;
}
if (iTokenEnd >= cChars || achToken [iTokenEnd] != '"')
{
// Cannot find matching double quote.
// "Invalid double-quoted string."
XmlParser.ThrowSrgsException (SRID.InvalidQuotedString);
}
if (iTokenEnd + 1 != cChars && achToken [iTokenEnd + 1] != ' ')
{
// Quoted token not surrounded by whitespace.");
// "Invalid double-quoted string."
XmlParser.ThrowSrgsException (SRID.InvalidQuotedString);
}
}
else
{
// Regular token. Find next white space character or end of string
iTokenEnd = i + 1;
while ((iTokenEnd < cChars) && achToken [iTokenEnd] != ' ')
{
iTokenEnd++;
}
}
string sToken = sChars.Substring (i, iTokenEnd - i);
if (sToken.IndexOf ('"') != -1)
{
// "The token string is not allowed to contain double quote character."
XmlParser.ThrowSrgsException (SRID.InvalidTokenString);
}
// Parse the token.
if (createTokens != null)
{
createTokens (parent, sToken, pronunciation, display, reqConfidence);
}
}
}
///
/// Throws an Exception with the error specified by the resource ID.
/// Add the line and column number if the XmlReader is a TextReader
///
///
///
internal static void ThrowSrgsException (SRID id, params object [] args)
{
throw new FormatException (SR.Get (id, args));
}
///
/// Throws an Exception with the error specified by the resource ID.
/// Add the line and column number if the XmlReader is a TextReader
///
///
///
///
///
internal static void ThrowSrgsExceptionWithPosition (string filename, XmlReader xmlReader, string sError, Exception innerException)
{
// Add the line and column number if the XmlReader is a XmlTextReader
XmlTextReader xmlTextReader = xmlReader as XmlTextReader;
if (xmlTextReader != null)
{
string sLine = SR.Get (SRID.Line);
string sPosition = SR.Get (SRID.Position);
int line = xmlTextReader.LineNumber;
int position = xmlTextReader.LinePosition;
if (filename == null)
{
sError += string.Format (CultureInfo.InvariantCulture, " [{0}={1}, {2}={3}]", sLine, line, sPosition, position);
}
else
{
sError = string.Format (CultureInfo.InvariantCulture, "{0}({1},{2}): error : {3}", filename, line, position, sError);
}
}
throw new FormatException (sError, innerException);
}
#endregion
//*******************************************************************
//
// Internal Properties
//
//********************************************************************
#region Internal Methods
// Inmplementation of the internal interface ISrgsParser
public IElementFactory ElementFactory
{
set
{
_parser = value;
}
}
#endregion
//********************************************************************
//
// Internal fields
//
//*******************************************************************
#region Internal fields
internal const string emptyNamespace = "";
internal const string xmlNamespace = "http://www.w3.org/XML/1998/namespace";
internal const string srgsNamespace = "http://www.w3.org/2001/06/grammar";
internal const string sapiNamespace = "http://schemas.microsoft.com/Speech/2002/06/SRGSExtensions";
#endregion
//********************************************************************
//
// Private Type
//
//*******************************************************************
#region Private Type
// Must be a class to be used with generics
[Serializable]
internal class ForwardReference
{
internal ForwardReference (string name, string value)
{
_name = name;
_value = value;
}
internal string _name;
internal string _value;
}
#endregion
//*******************************************************************
//
// Private Methods
//
//*******************************************************************
#region Private Methods
// The perf gain using .Lengh == 0 other readability is not worth it fixing this FxCop issue
private void ParseGrammar (XmlReader reader, IGrammar grammar)
{
string sAlphabet = null;
#if !NO_STG
string sLanguage = null;
string sNamespace = null;
#endif
string sVersion = null;
GrammarType grammarType = GrammarType.VoiceGrammar;
// Process attributes.
while (reader.MoveToNextAttribute ())
{
bool isInvalidAttribute = false;
switch (reader.NamespaceURI)
{
case emptyNamespace:
switch (reader.LocalName)
{
case "root":
if (grammar.Root == null)
{
grammar.Root = reader.Value;
}
else
{
ThrowSrgsException (SRID.RootRuleAlreadyDefined);
}
break;
case "version":
CheckForDuplicates (ref sVersion, reader);
if (sVersion != "1.0")
{
ThrowSrgsException (SRID.InvalidVersion);
}
break;
case "tag-format":
switch (reader.Value)
{
case "semantics/1.0":
grammar.TagFormat = SrgsTagFormat.W3cV1;
_hasTagFormat = true;
break;
#if SPEECHSERVER
case "semantics/1.0-literals":
grammar.TagFormat = SrgsTagFormat.W3cV1;
_w3c_literal = _hasTagFormat = true;
break;
#endif
case "semantics-ms/1.0":
grammar.TagFormat = SrgsTagFormat.MssV1;
_hasTagFormat = true;
break;
case "properties-ms/1.0":
grammar.TagFormat = SrgsTagFormat.KeyValuePairs;
_hasTagFormat = true;
break;
case "":
break;
default:
ThrowSrgsException (SRID.InvalidTagFormat);
break;
}
break;
case "mode":
switch (reader.Value)
{
case "voice":
grammar.Mode = GrammarType.VoiceGrammar;
break;
case "dtmf":
grammarType = grammar.Mode = GrammarType.DtmfGrammar;
break;
default:
ThrowSrgsException (SRID.InvalidGrammarMode);
break;
}
break;
default:
isInvalidAttribute = true;
break;
}
break;
case xmlNamespace:
switch (reader.LocalName)
{
case "lang":
string language = reader.Value;
try
{
grammar.Culture = _langId = new CultureInfo (language);
}
catch (ArgumentException)
{
// Special case for "es-us", create a new CultureInfo based on attributes of spanish
// and english
if (string.Compare ("es-us", language, StringComparison.OrdinalIgnoreCase) == 0)
{
Helpers.CombineCulture ("es-ES", "en-US", new CultureInfo ("es"), 0x540A);
grammar.Culture = _langId = new CultureInfo (language);
}
else
{
// Unknown Culture info, fall back to the base culture.
int pos = reader.Value.IndexOf ("-", StringComparison.Ordinal);
if (pos > 0)
{
grammar.Culture = _langId = new CultureInfo (reader.Value.Substring (0, pos));
}
else
{
throw;
}
}
}
break;
case "base":
grammar.XmlBase = new Uri (reader.Value);
break;
}
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "alphabet":
CheckForDuplicates (ref sAlphabet, reader);
switch (sAlphabet)
{
case "ipa":
grammar.PhoneticAlphabet = AlphabetType.Ipa;
break;
case "sapi":
case "x-sapi":
case "x-microsoft-sapi":
grammar.PhoneticAlphabet = AlphabetType.Sapi;
break;
case "ups":
case "x-ups":
case "x-microsoft-ups":
grammar.PhoneticAlphabet = AlphabetType.Ups;
break;
default:
ThrowSrgsException (SRID.UnsupportedPhoneticAlphabet, reader.Value);
break;
}
break;
#if !NO_STG
case "language":
CheckForDuplicates (ref sLanguage, reader);
if (sLanguage == "C#" || sLanguage == "VB.Net")
{
grammar.Language = sLanguage;
}
else
{
ThrowSrgsException (SRID.UnsupportedLanguage, reader.Value);
}
break;
case "namespace":
CheckForDuplicates (ref sNamespace, reader);
if (string.IsNullOrEmpty (sNamespace))
{
ThrowSrgsException (SRID.NoName1, "namespace");
}
grammar.Namespace = sNamespace;
break;
case "codebehind":
if (reader.Value.Length == 0)
{
ThrowSrgsException (SRID.NoName1, "codebehind");
}
grammar.CodeBehind.Add (reader.Value);
break;
case "debug":
bool f;
if (bool.TryParse (reader.Value, out f))
{
grammar.Debug = f;
}
break;
#endif
default:
isInvalidAttribute = true;
break;
}
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidGrammarAttribute, reader.Name);
}
}
// The version attribute is required for the grammar element
if (sVersion == null)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "version", "grammar");
}
// The langId is require for voice grammars
if (_langId == null)
{
if (grammarType == GrammarType.VoiceGrammar)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "xml:lang", "grammar");
}
else
{
_langId = CultureInfo.CurrentUICulture;
}
}
// Process child elements.
ProcessRulesAndScriptsNodes (reader, grammar);
// Validate all the scripts elements
ValidateScripts ();
#if !NO_STG
// Add all the scripts to the rules
foreach (ForwardReference script in _scripts)
{
_parser.AddScript (grammar, script._name, script._value);
}
#endif
// Finish all initialisation - should check for the Root and the all
// rules are defined
grammar.PostParse (null);
}
// The perf gain using .Lengh == 0 other readability is not worth it fixing this FxCop issue
private IRule ParseRule (IGrammar grammar, XmlReader reader)
{
string id = null;
string scope = null;
string dynamic = null;
RulePublic publicRule = RulePublic.NotSet;
RuleDynamic ruleDynamic = RuleDynamic.NotSet;
#if !NO_STG
string sBaseClass = null;
string sInit = null;
string sParse = null;
string sError = null;
string sRecognition = null;
#endif
while (reader.MoveToNextAttribute ())
{
bool isInvalidAttribute = false;
switch (reader.NamespaceURI)
{
case emptyNamespace:
switch (reader.LocalName)
{
case "id":
CheckForDuplicates (ref id, reader);
break;
case "scope":
CheckForDuplicates (ref scope, reader);
switch (scope)
{
case "private":
publicRule = RulePublic.False;
break;
case "public":
publicRule = RulePublic.True;
break;
default:
ThrowSrgsException (SRID.InvalidRuleScope);
break;
}
break;
default:
isInvalidAttribute = true;
break;
}
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "dynamic":
CheckForDuplicates (ref dynamic, reader);
switch (dynamic)
{
case "true":
ruleDynamic = RuleDynamic.True;
break;
case "false":
ruleDynamic = RuleDynamic.False;
break;
default:
ThrowSrgsException (SRID.InvalidDynamicSetting);
break;
}
break;
#if !NO_STG
case "baseclass":
CheckForDuplicates (ref sBaseClass, reader);
if (string.IsNullOrEmpty (sBaseClass))
{
ThrowSrgsException (SRID.NoName1, "baseclass");
}
break;
case "onInit":
CheckForDuplicates (ref sInit, reader);
sInit = reader.Value;
break;
case "onParse":
CheckForDuplicates (ref sParse, reader);
sParse = reader.Value;
break;
case "onError":
CheckForDuplicates (ref sError, reader);
sError = reader.Value;
break;
case "onRecognition":
CheckForDuplicates (ref sRecognition, reader);
break;
#endif
default:
isInvalidAttribute = true;
break;
}
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidRuleAttribute, reader.Name);
}
}
if (string.IsNullOrEmpty (id))
{
ThrowSrgsException (SRID.NoRuleId);
}
#if !NO_STG
if (sInit != null && publicRule != RulePublic.True)
{
XmlParser.ThrowSrgsException (SRID.OnInitOnPublicRule, "OnInit", id);
}
if (sRecognition != null && publicRule != RulePublic.True)
{
XmlParser.ThrowSrgsException (SRID.OnInitOnPublicRule, "OnRecognition", id);
}
ValidateRuleId (id);
bool hasScript = sInit != null || sParse != null || sError != null || sRecognition != null;
IRule rule = grammar.CreateRule (id, publicRule, ruleDynamic, hasScript);
if (!string.IsNullOrEmpty (sInit))
{
rule.CreateScript (grammar, id, sInit, RuleMethodScript.onInit);
}
if (!string.IsNullOrEmpty (sParse))
{
rule.CreateScript (grammar, id, sParse, RuleMethodScript.onParse);
}
if (!string.IsNullOrEmpty (sError))
{
rule.CreateScript (grammar, id, sError, RuleMethodScript.onError);
}
if (!string.IsNullOrEmpty (sRecognition))
{
rule.CreateScript (grammar, id, sRecognition, RuleMethodScript.onRecognition);
}
rule.BaseClass = sBaseClass;
#else
ValidateRuleId (id);
IRule rule = grammar.CreateRule (id, publicRule, ruleDynamic, false);
#endif
_rules.Add (id);
if (!ProcessChildNodes (reader, rule, rule, "rule"))
{
if (ruleDynamic != RuleDynamic.True)
{
ThrowSrgsException (SRID.InvalidEmptyRule, "rule", id);
}
}
return rule;
}
// The perf gain using .Lengh == 0 other readability is not worth it fixing this FxCop issue
private IRuleRef ParseRuleRef (IElement parent, XmlReader reader)
{
IRuleRef ruleRef = null;
string sAlias = null;
string sParams = null;
string uri = null;
while (reader.MoveToNextAttribute ())
{
bool isInvalidAttribute = false;
switch (reader.NamespaceURI)
{
case emptyNamespace:
switch (reader.LocalName)
{
case "uri":
// Check that the uri pointed to in the ruleref does not point this file
// in srgs.xml: ... = 0)
{
ThrowSrgsException (SRID.InvalidTokenString);
}
return _parser.CreateToken (parent, content, sPronunciation, sDisplay, reqConfidence);
}
///
/// Break the string into individual tokens and ParseToken() each individual token.
///
/// Token string is a sequence of 0 or more white space delimited tokens.
/// Tokens may also be delimited by double quotes. In these cases, the double
/// quotes token must be surrounded by white space or string boundary.
///
/// Parent element
///
///
///
///
private void ParseText (IElement parent, string sChars, string pronunciation, string display, float reqConfidence)
{
System.Diagnostics.Debug.Assert ((parent != null) && (!string.IsNullOrEmpty (sChars)));
ParseText (parent, sChars, pronunciation, display, reqConfidence, new CreateTokenCallback (_parser.CreateToken));
}
private IElement ParseTag (IElement parent, XmlReader reader)
{
string content = GetTagContent (parent, reader);
//Return an empty tag if the content is empty
if (string.IsNullOrEmpty (content))
{
return _parser.CreateSemanticTag (parent);
}
if (_parser.Grammar.TagFormat != SrgsTagFormat.KeyValuePairs)
{
ISemanticTag semanticTag = _parser.CreateSemanticTag (parent);
#if SPEECHSERVER
// For semantic interpretation literal, surround the content of the tag bu "out="
if (_w3c_literal)
{
content = string.Format (CultureInfo.InvariantCulture, "out=\"{0}\";", content);
}
#endif
semanticTag.Content (parent, content, 0);
return semanticTag;
}
System.Diagnostics.Debug.Assert (_parser.Grammar.TagFormat == SrgsTagFormat.KeyValuePairs);
IPropertyTag propertyTag = _parser.CreatePropertyTag (parent); ;
string name;
object value;
ParsePropertyTag (content, out name, out value);
propertyTag.NameValue (parent, name, value);
return propertyTag;
}
private string GetTagContent (IElement parent, XmlReader reader)
{
// A tag format must be specified in the grammar header
if (!_hasTagFormat)
{
ThrowSrgsException (SRID.MissingTagFormat);
}
while (reader.MoveToNextAttribute ())
{
bool isInvalidAttribute = false;
switch (reader.NamespaceURI)
{
case emptyNamespace:
case sapiNamespace:
isInvalidAttribute = true;
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidTagAttribute, reader.Name);
}
}
return GetStringContent (reader).Trim (Helpers._achTrimChars);
}
///
/// Parse the lexicon Element
///
/// Attributes:
/// uri: required
/// type: optional
///
///
private static void ParseLexicon (XmlReader reader)
{
bool isInvalidAttribute = false;
bool fFoundUri = false;
while (reader.MoveToNextAttribute ())
{
switch (reader.LocalName)
{
case "uri":
fFoundUri = true;
break;
case "type":
break;
default:
isInvalidAttribute = true;
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidLexiconAttribute, reader.Name);
}
}
if (!fFoundUri)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "uri", "lexicon");
}
//
}
///
/// Parse the Meta Element
///
/// Attributes:
/// name and http-equiv: one or the other but not bothsd
/// content: required
///
///
private static void ParseMeta (XmlReader reader)
{
bool fFoundContent = false;
bool fFoundNameOrEquiv = false;
bool isInvalidAttribute = false;
while (reader.MoveToNextAttribute ())
{
switch (reader.LocalName)
{
case "name":
case "http-equiv":
if (fFoundNameOrEquiv)
{
ThrowSrgsException (SRID.MetaNameHTTPEquiv);
}
fFoundNameOrEquiv = true;
break;
case "content":
isInvalidAttribute = fFoundContent;
fFoundContent = true;
break;
default:
isInvalidAttribute = true;
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidMetaAttribute, reader.Name);
}
}
if (!fFoundContent)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "content", "meta");
}
if (!fFoundNameOrEquiv)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "name or http-equiv", "meta");
}
}
#if !NO_STG
private void ParseScript (XmlReader reader, IGrammar grammar)
{
int line = _filename != null ? _xmlTextReader.LineNumber : -1;
string sRule = null;
while (reader.MoveToNextAttribute ())
{
switch (reader.NamespaceURI)
{
case emptyNamespace:
ThrowSrgsException (SRID.InvalidScriptAttribute);
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "rule":
if (string.IsNullOrEmpty (sRule))
{
sRule = reader.Value;
}
else
{
ThrowSrgsException (SRID.RuleAttributeDefinedMultipeTimes);
}
break;
default:
ThrowSrgsException (SRID.InvalidScriptAttribute);
break;
}
break;
}
}
// if no rule or method defined - add the content to the generic _scrip
if (string.IsNullOrEmpty (sRule))
{
_parser.AddScript (grammar, GetStringContent (reader), _filename, line);
}
else
{
// Adds a placeholder for the rule.
// Once all the rules and scripts are read, the placeholder will be replaced with the proper rule.
_scripts.Add (new ForwardReference (sRule, _parser.AddScript (grammar, sRule, GetStringContent (reader), _filename, line)));
}
}
static private void ParseAssemblyReference (XmlReader reader, IGrammar grammar)
{
while (reader.MoveToNextAttribute ())
{
switch (reader.NamespaceURI)
{
case emptyNamespace:
ThrowSrgsException (SRID.InvalidScriptAttribute);
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "assembly":
grammar.AssemblyReferences.Add (reader.Value);
break;
default:
ThrowSrgsException (SRID.InvalidAssemblyReferenceAttribute);
break;
}
break;
}
}
}
static private void ParseImportNamespace (XmlReader reader, IGrammar grammar)
{
while (reader.MoveToNextAttribute ())
{
switch (reader.NamespaceURI)
{
case emptyNamespace:
ThrowSrgsException (SRID.InvalidScriptAttribute);
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "namespace":
grammar.ImportNamespaces.Add (reader.Value);
break;
default:
ThrowSrgsException (SRID.InvalidImportNamespaceAttribute);
break;
}
break;
}
}
}
#endif
private bool ProcessChildNodes (XmlReader reader, IElement parent, IRule rule, string parentName)
{
bool fFirstElement = true;
// Create a list of name value tags for this scope
List tags = null;
reader.MoveToElement (); // Move to containing parent of attributes
if (!reader.IsEmptyElement)
{
reader.Read (); // Move to first child parent
while (reader.NodeType != XmlNodeType.EndElement) // Process each child parent while not at end parent
{
bool isInvalidNode = false;
if (reader.NodeType == XmlNodeType.Element)
{
// Null if no children are allowed
if (parent == null)
{
ThrowSrgsException (SRID.InvalidNotEmptyElement, parentName);
}
IElement child = null;
switch (reader.NamespaceURI)
{
case srgsNamespace:
switch (reader.LocalName)
{
case "example":
if (!(parent is IRule) || !fFirstElement)
{
ThrowSrgsException (SRID.InvalidExampleOrdering);
}
else
{
reader.Skip ();
continue;
}
break;
case "ruleref":
child = ParseRuleRef (parent, reader);
break;
case "one-of":
child = ParseOneOf (parent, rule, reader);
break;
case "item":
child = ParseItem (parent, rule, reader);
break;
case "token":
child = ParseToken (parent, reader);
break;
case "tag":
child = ParseTag (parent, reader);
IPropertyTag tag = child as IPropertyTag;
if (tag != null)
{
// The tag list is delayed as it might not be necessary
if (tags == null)
{
tags = new List ();
}
tags.Add (tag);
}
break;
case "rule":
default:
isInvalidNode = true;
break;
}
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "subset":
if ((parent is IRule) || (parent is IItem))
{
child = ParseSubset (parent, reader);
}
else
{
isInvalidNode = true;
}
break;
default:
isInvalidNode = true;
break;
}
break;
default:
reader.Skip (); // Skip over parents in unknown namespaces
break;
}
isInvalidNode = ParseChildNodeElement (parent, isInvalidNode, child);
fFirstElement = false;
}
else if (reader.NodeType == XmlNodeType.Text || reader.NodeType == XmlNodeType.CDATA)
{
// Null if no children are allowed
if (parent == null)
{
ThrowSrgsException (SRID.InvalidNotEmptyElement, parentName);
}
isInvalidNode = ParseChildNodeText (reader, parent);
fFirstElement = false;
}
else
{
reader.Skip (); // Skip over non-parent/text node types
}
if (isInvalidNode)
{
ThrowSrgsException (SRID.InvalidElement, reader.Name);
}
}
}
reader.Read (); // Move to next sibling
// Generate the tags for this scope
if (tags != null)
{
foreach (IPropertyTag tag in tags)
{
tag.PostParse (parent);
}
}
return !fFirstElement;
}
private bool ParseChildNodeText (XmlReader reader, IElement parent)
{
bool isInvalidNode = false;
string content = reader.Value;
// Create the SrgsElement for the text
IElementText srgsText = _parser.CreateText (parent, content);
// Split it in pieces
ParseText (parent, content, null, null, -1f);
// if the parent is a one of, then the children must be an Item
if (parent is IOneOf)
{
isInvalidNode = true;
}
else
{
IRule parentRule = parent as IRule;
if (parentRule != null)
{
_parser.AddElement (parentRule, srgsText);
}
else
{
IItem parentItem = parent as IItem;
if (parentItem != null)
{
_parser.AddElement (parentItem, srgsText);
}
else
{
isInvalidNode = true;
}
}
}
reader.Read ();
return isInvalidNode;
}
private bool ParseChildNodeElement (IElement parent, bool isInvalidNode, IElement child)
{
// The child parent has not been processed yet
if (child != null)
{
// if the parent is a one of, then the children must be an Item
IOneOf parentOneOf = parent as IOneOf;
if (parentOneOf != null)
{
IItem childItem = child as IItem;
if (childItem != null)
{
_parser.AddItem (parentOneOf, childItem);
}
else
{
isInvalidNode = true;
}
}
else
{
IRule parentRule = parent as IRule;
if (parentRule != null)
{
_parser.AddElement (parentRule, child);
}
else
{
IItem parentItem = parent as IItem;
if (parentItem != null)
{
_parser.AddElement (parentItem, child);
}
else
{
isInvalidNode = true;
}
}
}
}
return isInvalidNode;
}
private void ProcessRulesAndScriptsNodes (XmlReader reader, IGrammar grammar)
{
bool fProcessedRules = false;
// Move to containing element of attributes
reader.MoveToElement ();
if (!reader.IsEmptyElement)
{
// Move to first child element
reader.Read ();
// Process each child element while not at end element
while (reader.NodeType != XmlNodeType.EndElement)
{
bool isInvalidNode = false;
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.NamespaceURI)
{
case srgsNamespace:
switch (reader.LocalName)
{
case "lexicon":
if (fProcessedRules)
{
ThrowSrgsException (SRID.InvalidGrammarOrdering);
}
ParseLexicon (reader);
break;
case "meta":
if (fProcessedRules)
{
ThrowSrgsException (SRID.InvalidGrammarOrdering);
}
ParseMeta (reader);
break;
case "metadata":
if (fProcessedRules)
{
ThrowSrgsException (SRID.InvalidGrammarOrdering);
}
reader.Skip ();
break;
case "rule":
IRule rule = ParseRule (grammar, reader);
rule.PostParse (grammar);
fProcessedRules = true;
break;
case "tag":
if (fProcessedRules || _hasTagFormat && grammar.TagFormat != SrgsTagFormat.W3cV1)
{
ThrowSrgsException (SRID.InvalidGrammarOrdering);
}
grammar.GlobalTags.Add (GetTagContent (grammar, reader));
break;
default:
isInvalidNode = true;
break;
}
break;
case sapiNamespace:
switch (reader.LocalName)
{
#if !NO_STG
case "script":
ParseScript (reader, grammar);
fProcessedRules = true;
break;
case "assemblyReference":
ParseAssemblyReference (reader, grammar);
fProcessedRules = true;
break;
case "importNamespace":
ParseImportNamespace (reader, grammar);
fProcessedRules = true;
break;
#endif
default:
isInvalidNode = true;
break;
}
break;
default:
// Skip over elements in unknown namespaces
reader.Skip ();
break;
}
}
else
{
if (reader.NodeType == XmlNodeType.Text)
{
ThrowSrgsException (SRID.InvalidElement, "text");
}
// Skip over non-element/text node types
reader.Skip ();
}
if (isInvalidNode)
{
ThrowSrgsException (SRID.InvalidElement, reader.Name);
}
}
}
// Move to next sibling
reader.Read ();
}
static private string GetStringContent (XmlReader reader)
{
StringBuilder sb = new StringBuilder ();
reader.MoveToElement (); // Move to containing element of attributes
if (!reader.IsEmptyElement)
{
reader.Read (); // Move to first child element
while (reader.NodeType != XmlNodeType.EndElement) // Process each child element while not at end element
{
sb.Append (reader.ReadString ());
bool isInvalidNode = false;
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.NamespaceURI)
{
case srgsNamespace:
case sapiNamespace:
isInvalidNode = true;
break;
default:
reader.Skip (); // Skip over elements in unknown namespaces
break;
}
}
else if (reader.NodeType != XmlNodeType.EndElement)
{
reader.Skip (); // Skip over non-end element node types
}
if (isInvalidNode)
{
ThrowSrgsException (SRID.InvalidElement, reader.Name);
}
}
}
reader.Read (); // Move to next sibling
return sb.ToString ();
}
/// TODOC <_include file='doc\Tag.uex' path='docs/doc[@for="Tag.RepeatProbability"]/*' />
static void ParsePropertyTag (string sTag, out string name, out object value)
{
// Default value
name = null;
value = string.Empty;
// Name= pszValue = null vValue = VT_EMPTY
// Name="string" pszValue = "string" vValue = VT_EMPTY
// Name=true pszValue = null vValue = VT_BOOL
// Name=123 pszValue = null vValue = VT_I4
// Name=3.14 pszValue = null vValue = VT_R8
int iEqual = sTag.IndexOf ('=');
if (iEqual >= 0)
{
// Set property name
name = sTag.Substring (0, iEqual).Trim (Helpers._achTrimChars);
iEqual++;
}
else
{
iEqual = 0;
}
// Set property value
int cLenProperty = sTag.Length;
if (iEqual < cLenProperty)
{
if (sTag [iEqual] == '"')
{
// Name="string"
iEqual++;
int iEndQuote = sTag.IndexOf ('"', iEqual + 1);
if (iEndQuote + 1 != cLenProperty)
{
// Invalid string value
XmlParser.ThrowSrgsException (SRID.IncorrectAttributeValue, name, sTag.Substring (iEqual));
}
value = sTag.Substring (iEqual, iEndQuote - iEqual);
}
else
{
string sValue = sTag.Substring (iEqual);
int iValue;
if (int.TryParse (sValue, out iValue))
{
// propInfo.pszValue = null
// Name=123
// propInfo.vValue = VT_I4
value = iValue;
}
else
{
double flValue;
if (double.TryParse (sValue, out flValue))
{
// propInfo.pszValue = null
// propInfo.vValue = VT_R8
value = flValue;
}
else
{
bool fValue;
if (bool.TryParse (sValue, out fValue))
{
// Name=true
// propInfo.pszValue = null
// propInfo.vValue = VT_BOOL
value = fValue;
}
else
{
XmlParser.ThrowSrgsException (SRID.InvalidNameValueProperty, name, sValue);
}
}
}
}
}
}
///
/// Convert integer range string to MinValue and MaxValue.
/// For n- format, MaxValue = Int32.MaxValue
/// Valid formats: n|n-|n-m n,m integers
/// integer = [whitespace] [+] [0[{x|X}]] [digits]
///
///
///
///
static private void SetRepeatValues (string repeat, out int minRepeat, out int maxRepeat)
{
minRepeat = maxRepeat = 1;
if (!string.IsNullOrEmpty (repeat))
{
int sep = repeat.IndexOf ("-", StringComparison.Ordinal);
if (sep < 0)
{
int minmax = Convert.ToInt32 (repeat, CultureInfo.InvariantCulture);
// Limit the range of valid values
if (minmax < 0 || minmax > 255)
{
XmlParser.ThrowSrgsException (SRID.MinMaxOutOfRange, minmax, minmax);
}
minRepeat = maxRepeat = minmax;
}
else if (0 < sep)
{
minRepeat = Convert.ToInt32 (repeat.Substring (0, sep), CultureInfo.InvariantCulture);
if (sep < (repeat.Length - 1))
{
maxRepeat = Convert.ToInt32 (repeat.Substring (sep + 1), CultureInfo.InvariantCulture);
}
else
{
maxRepeat = System.Int32.MaxValue;
}
// Limit the range of valid values
if (minRepeat < 0 || minRepeat > 255 || (maxRepeat != System.Int32.MaxValue && (maxRepeat < 0 || maxRepeat > 255)))
{
XmlParser.ThrowSrgsException (SRID.MinMaxOutOfRange, minRepeat, maxRepeat);
}
// Max be greater or equal to min
if (minRepeat > maxRepeat)
{
throw new ArgumentException (SR.Get (SRID.MinGreaterThanMax));
}
}
else
{
ThrowSrgsException (SRID.InvalidItemRepeatAttribute, repeat);
}
}
else
{
ThrowSrgsException (SRID.InvalidItemAttribute2);
}
}
private static void CheckForDuplicates (ref string dest, XmlReader reader)
{
if (!string.IsNullOrEmpty (dest))
{
StringBuilder attribute = new StringBuilder (reader.LocalName);
if (reader.NamespaceURI.Length > 0)
{
attribute.Append (reader.NamespaceURI);
attribute.Append (":");
}
XmlParser.ThrowSrgsException (SRID.InvalidAttributeDefinedTwice, reader.Value, attribute);
}
dest = reader.Value;
}
// Throws exception if the specified Rule does not have a valid Id.
static internal void ValidateRuleId (string id)
{
Helpers.ThrowIfEmptyOrNull (id, "id");
if (!XmlReader.IsName (id) || (id == "NULL") || (id == "VOID") || (id == "GARBAGE") || (id.IndexOfAny (_invalidRuleIdChars) != -1))
{
XmlParser.ThrowSrgsException (SRID.InvalidRuleId, id);
}
}
private void ValidateRulerefNotPointingToSelf (string uri)
{
// Check that the uri pointed to in the ruleref does not point this file
// in srgs.xml: ...
if (_filename != null)
{
if (uri.IndexOf (_shortFilename, StringComparison.Ordinal) == 0 && (uri.Length > _shortFilename.Length && uri [_shortFilename.Length] == '#' || uri.Length == _shortFilename.Length))
{
ThrowSrgsException (SRID.InvalidRuleRefSelf);
}
}
}
private void ValidateScripts ()
{
#if !NO_STG
// Check that the rule and methods are defined for a script
foreach (ForwardReference script in _scripts)
{
if (!_rules.Contains (script._name))
{
ThrowSrgsException (SRID.InvalidScriptDefinition, script._name);
}
}
#endif
// Validate for unique rule names
List ruleNames = new List ();
foreach (string rule in _rules)
{
if (ruleNames.Contains (rule))
{
XmlParser.ThrowSrgsException (SRID.RuleAttributeDefinedMultipeTimes, rule);
}
ruleNames.Add (rule);
}
}
#endregion
//********************************************************************
//
// Private Fields
//
//*******************************************************************
#region Private Fields
private IElementFactory _parser;
// Avoid to do a cast many times
private XmlReader _reader;
// Avoid to do a cast many times
private XmlTextReader _xmlTextReader;
// Save the filename
private string _filename;
// Save the filename without the path
private string _shortFilename;
// Language Id for this grammar
private CultureInfo _langId;
// Has the Grammar element a FormatTag
private bool _hasTagFormat;
#if SPEECHSERVER
// Has the Grammar element a FormatTag
private bool _w3c_literal;
#endif
// All defined rules
List _rules = new List ();
#if !NO_STG
List _scripts = new List ();
#endif
static private readonly char [] _invalidRuleIdChars = new char [] { '.', ':', '-', '#' };
static private readonly char [] _SlashBackSlash = new char [] { '\\', '/' };
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// Description:
// The Srgs xml parser parse takes as input an xml reader and the IElementFactory
// interface. With this virtualization scheme, the srgs parser do not create
// directly Srgs elements. Instead methods on a set of interfaces for each
// Srgs Element creates the element themselve. The underlying implementation
// for each elements is different for the SrgsDocument class and the Srgs
// Compiler.
//
// Interface definition for the IElement
// History:
// 6/1/2004 jeanfp Created
//----------------------------------------------------------------------------using System;
using System;
using System.Globalization;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Xml;
using System.Collections;
using System.Collections.Generic;
using System.Speech.Recognition.SrgsGrammar;
#pragma warning disable 1634, 1691 // Allows suppression of certain PreSharp messages.
#pragma warning disable 56524 // The _reader and and _xmlReader are not created in this module and should not be disposed
// Remove all the check for null or empty warnings
#pragma warning disable 56507
namespace System.Speech.Internal.SrgsParser
{
internal class XmlParser : ISrgsParser
{
//*******************************************************************
//
// Constructors
//
//*******************************************************************
#region Constructors
internal XmlParser (XmlReader reader, Uri uri)
{
_reader = reader;
_xmlTextReader = reader as XmlTextReader;
// Try to guess the Uri
if (uri == null)
{
// Keep a reference to the filename and XmlTextReader if it is one.
if (_xmlTextReader != null && _xmlTextReader.BaseURI.Length > 0)
{
try
{
uri = new Uri (_xmlTextReader.BaseURI);
}
#pragma warning disable 56502 // Remove the empty catch statements warnings
catch (UriFormatException)
{
}
#pragma warning restore 56502
}
}
// Saves the path to the file and the file name
if (uri != null)
{
// Saves the full path to the file
_filename = !uri.IsAbsoluteUri || !uri.IsFile ? uri.OriginalString : uri.LocalPath;
// Saves the filename without the path
int iPosSlash = _filename.LastIndexOfAny (_SlashBackSlash);
_shortFilename = iPosSlash >= 0 ? _filename.Substring (iPosSlash + 1) : _filename;
}
}
#endregion
//*******************************************************************
//
// Internal Methods
//
//********************************************************************
#region Internal Methods
// Initializes the object from a stream containg SRGS in XML
public void Parse ()
{
try
{
bool isGrammarElementFound = false;
while (_reader.Read ())
{
// Ignore XmlDeclaration, ProcessingInstruction, Comment, DocumentType, Entity, Notation.
if (_reader.NodeType == XmlNodeType.Element && _reader.LocalName == "grammar")
{
if (_reader.NamespaceURI != srgsNamespace)
{
ThrowSrgsException (SRID.InvalidSrgsNamespace);
}
if (isGrammarElementFound)
{
ThrowSrgsException (SRID.GrammarDefTwice);
}
else
{
ParseGrammar (_reader, _parser.Grammar);
isGrammarElementFound = true;
}
}
}
if (!isGrammarElementFound)
{
ThrowSrgsException (SRID.InvalidSrgs);
}
}
catch (XmlException eXml)
{
_parser.RemoveAllRules ();
ThrowSrgsExceptionWithPosition (_filename, _reader, SR.Get (SRID.InvalidXmlFormat), eXml);
}
catch (FormatException e)
{
// Adds a placeholder for the rule.
// Once all the rules and scripts are read, the placeholder will be replaced with the proper rule.
_parser.RemoveAllRules ();
ThrowSrgsExceptionWithPosition (_filename, _reader, e.Message, e.InnerException);
}
catch
{
// clear all the rules
_parser.RemoveAllRules ();
throw;
}
}
///
/// Break the string into individual tokens and ParseToken() each individual token.
///
/// Token string is a sequence of 0 or more white space delimited tokens.
/// Tokens may also be delimited by double quotes. In these cases, the double
/// quotes token must be surrounded by white space or string boundary.
///
/// Parent element
///
///
///
///
///
internal static void ParseText (IElement parent, string sChars, string pronunciation, string display, float reqConfidence, CreateTokenCallback createTokens)
{
sChars = sChars.Trim (Helpers._achTrimChars);
char [] achToken = sChars.ToCharArray ();
int iTokenEnd = 0;
int cChars = sChars.Length;
for (int i = 0; i < achToken.Length; i = iTokenEnd + 1)
{
if (achToken [i] == ' ') // Skip white spaces
{
iTokenEnd = i;
continue;
}
// Find the next token
if (achToken [i] == '"')
{
// Quoted string. Find end of quoted string.
iTokenEnd = ++i;
while ((iTokenEnd < cChars) && (achToken [iTokenEnd] != '"'))
{
iTokenEnd++;
}
if (iTokenEnd >= cChars || achToken [iTokenEnd] != '"')
{
// Cannot find matching double quote.
// "Invalid double-quoted string."
XmlParser.ThrowSrgsException (SRID.InvalidQuotedString);
}
if (iTokenEnd + 1 != cChars && achToken [iTokenEnd + 1] != ' ')
{
// Quoted token not surrounded by whitespace.");
// "Invalid double-quoted string."
XmlParser.ThrowSrgsException (SRID.InvalidQuotedString);
}
}
else
{
// Regular token. Find next white space character or end of string
iTokenEnd = i + 1;
while ((iTokenEnd < cChars) && achToken [iTokenEnd] != ' ')
{
iTokenEnd++;
}
}
string sToken = sChars.Substring (i, iTokenEnd - i);
if (sToken.IndexOf ('"') != -1)
{
// "The token string is not allowed to contain double quote character."
XmlParser.ThrowSrgsException (SRID.InvalidTokenString);
}
// Parse the token.
if (createTokens != null)
{
createTokens (parent, sToken, pronunciation, display, reqConfidence);
}
}
}
///
/// Throws an Exception with the error specified by the resource ID.
/// Add the line and column number if the XmlReader is a TextReader
///
///
///
internal static void ThrowSrgsException (SRID id, params object [] args)
{
throw new FormatException (SR.Get (id, args));
}
///
/// Throws an Exception with the error specified by the resource ID.
/// Add the line and column number if the XmlReader is a TextReader
///
///
///
///
///
internal static void ThrowSrgsExceptionWithPosition (string filename, XmlReader xmlReader, string sError, Exception innerException)
{
// Add the line and column number if the XmlReader is a XmlTextReader
XmlTextReader xmlTextReader = xmlReader as XmlTextReader;
if (xmlTextReader != null)
{
string sLine = SR.Get (SRID.Line);
string sPosition = SR.Get (SRID.Position);
int line = xmlTextReader.LineNumber;
int position = xmlTextReader.LinePosition;
if (filename == null)
{
sError += string.Format (CultureInfo.InvariantCulture, " [{0}={1}, {2}={3}]", sLine, line, sPosition, position);
}
else
{
sError = string.Format (CultureInfo.InvariantCulture, "{0}({1},{2}): error : {3}", filename, line, position, sError);
}
}
throw new FormatException (sError, innerException);
}
#endregion
//*******************************************************************
//
// Internal Properties
//
//********************************************************************
#region Internal Methods
// Inmplementation of the internal interface ISrgsParser
public IElementFactory ElementFactory
{
set
{
_parser = value;
}
}
#endregion
//********************************************************************
//
// Internal fields
//
//*******************************************************************
#region Internal fields
internal const string emptyNamespace = "";
internal const string xmlNamespace = "http://www.w3.org/XML/1998/namespace";
internal const string srgsNamespace = "http://www.w3.org/2001/06/grammar";
internal const string sapiNamespace = "http://schemas.microsoft.com/Speech/2002/06/SRGSExtensions";
#endregion
//********************************************************************
//
// Private Type
//
//*******************************************************************
#region Private Type
// Must be a class to be used with generics
[Serializable]
internal class ForwardReference
{
internal ForwardReference (string name, string value)
{
_name = name;
_value = value;
}
internal string _name;
internal string _value;
}
#endregion
//*******************************************************************
//
// Private Methods
//
//*******************************************************************
#region Private Methods
// The perf gain using .Lengh == 0 other readability is not worth it fixing this FxCop issue
private void ParseGrammar (XmlReader reader, IGrammar grammar)
{
string sAlphabet = null;
#if !NO_STG
string sLanguage = null;
string sNamespace = null;
#endif
string sVersion = null;
GrammarType grammarType = GrammarType.VoiceGrammar;
// Process attributes.
while (reader.MoveToNextAttribute ())
{
bool isInvalidAttribute = false;
switch (reader.NamespaceURI)
{
case emptyNamespace:
switch (reader.LocalName)
{
case "root":
if (grammar.Root == null)
{
grammar.Root = reader.Value;
}
else
{
ThrowSrgsException (SRID.RootRuleAlreadyDefined);
}
break;
case "version":
CheckForDuplicates (ref sVersion, reader);
if (sVersion != "1.0")
{
ThrowSrgsException (SRID.InvalidVersion);
}
break;
case "tag-format":
switch (reader.Value)
{
case "semantics/1.0":
grammar.TagFormat = SrgsTagFormat.W3cV1;
_hasTagFormat = true;
break;
#if SPEECHSERVER
case "semantics/1.0-literals":
grammar.TagFormat = SrgsTagFormat.W3cV1;
_w3c_literal = _hasTagFormat = true;
break;
#endif
case "semantics-ms/1.0":
grammar.TagFormat = SrgsTagFormat.MssV1;
_hasTagFormat = true;
break;
case "properties-ms/1.0":
grammar.TagFormat = SrgsTagFormat.KeyValuePairs;
_hasTagFormat = true;
break;
case "":
break;
default:
ThrowSrgsException (SRID.InvalidTagFormat);
break;
}
break;
case "mode":
switch (reader.Value)
{
case "voice":
grammar.Mode = GrammarType.VoiceGrammar;
break;
case "dtmf":
grammarType = grammar.Mode = GrammarType.DtmfGrammar;
break;
default:
ThrowSrgsException (SRID.InvalidGrammarMode);
break;
}
break;
default:
isInvalidAttribute = true;
break;
}
break;
case xmlNamespace:
switch (reader.LocalName)
{
case "lang":
string language = reader.Value;
try
{
grammar.Culture = _langId = new CultureInfo (language);
}
catch (ArgumentException)
{
// Special case for "es-us", create a new CultureInfo based on attributes of spanish
// and english
if (string.Compare ("es-us", language, StringComparison.OrdinalIgnoreCase) == 0)
{
Helpers.CombineCulture ("es-ES", "en-US", new CultureInfo ("es"), 0x540A);
grammar.Culture = _langId = new CultureInfo (language);
}
else
{
// Unknown Culture info, fall back to the base culture.
int pos = reader.Value.IndexOf ("-", StringComparison.Ordinal);
if (pos > 0)
{
grammar.Culture = _langId = new CultureInfo (reader.Value.Substring (0, pos));
}
else
{
throw;
}
}
}
break;
case "base":
grammar.XmlBase = new Uri (reader.Value);
break;
}
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "alphabet":
CheckForDuplicates (ref sAlphabet, reader);
switch (sAlphabet)
{
case "ipa":
grammar.PhoneticAlphabet = AlphabetType.Ipa;
break;
case "sapi":
case "x-sapi":
case "x-microsoft-sapi":
grammar.PhoneticAlphabet = AlphabetType.Sapi;
break;
case "ups":
case "x-ups":
case "x-microsoft-ups":
grammar.PhoneticAlphabet = AlphabetType.Ups;
break;
default:
ThrowSrgsException (SRID.UnsupportedPhoneticAlphabet, reader.Value);
break;
}
break;
#if !NO_STG
case "language":
CheckForDuplicates (ref sLanguage, reader);
if (sLanguage == "C#" || sLanguage == "VB.Net")
{
grammar.Language = sLanguage;
}
else
{
ThrowSrgsException (SRID.UnsupportedLanguage, reader.Value);
}
break;
case "namespace":
CheckForDuplicates (ref sNamespace, reader);
if (string.IsNullOrEmpty (sNamespace))
{
ThrowSrgsException (SRID.NoName1, "namespace");
}
grammar.Namespace = sNamespace;
break;
case "codebehind":
if (reader.Value.Length == 0)
{
ThrowSrgsException (SRID.NoName1, "codebehind");
}
grammar.CodeBehind.Add (reader.Value);
break;
case "debug":
bool f;
if (bool.TryParse (reader.Value, out f))
{
grammar.Debug = f;
}
break;
#endif
default:
isInvalidAttribute = true;
break;
}
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidGrammarAttribute, reader.Name);
}
}
// The version attribute is required for the grammar element
if (sVersion == null)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "version", "grammar");
}
// The langId is require for voice grammars
if (_langId == null)
{
if (grammarType == GrammarType.VoiceGrammar)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "xml:lang", "grammar");
}
else
{
_langId = CultureInfo.CurrentUICulture;
}
}
// Process child elements.
ProcessRulesAndScriptsNodes (reader, grammar);
// Validate all the scripts elements
ValidateScripts ();
#if !NO_STG
// Add all the scripts to the rules
foreach (ForwardReference script in _scripts)
{
_parser.AddScript (grammar, script._name, script._value);
}
#endif
// Finish all initialisation - should check for the Root and the all
// rules are defined
grammar.PostParse (null);
}
// The perf gain using .Lengh == 0 other readability is not worth it fixing this FxCop issue
private IRule ParseRule (IGrammar grammar, XmlReader reader)
{
string id = null;
string scope = null;
string dynamic = null;
RulePublic publicRule = RulePublic.NotSet;
RuleDynamic ruleDynamic = RuleDynamic.NotSet;
#if !NO_STG
string sBaseClass = null;
string sInit = null;
string sParse = null;
string sError = null;
string sRecognition = null;
#endif
while (reader.MoveToNextAttribute ())
{
bool isInvalidAttribute = false;
switch (reader.NamespaceURI)
{
case emptyNamespace:
switch (reader.LocalName)
{
case "id":
CheckForDuplicates (ref id, reader);
break;
case "scope":
CheckForDuplicates (ref scope, reader);
switch (scope)
{
case "private":
publicRule = RulePublic.False;
break;
case "public":
publicRule = RulePublic.True;
break;
default:
ThrowSrgsException (SRID.InvalidRuleScope);
break;
}
break;
default:
isInvalidAttribute = true;
break;
}
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "dynamic":
CheckForDuplicates (ref dynamic, reader);
switch (dynamic)
{
case "true":
ruleDynamic = RuleDynamic.True;
break;
case "false":
ruleDynamic = RuleDynamic.False;
break;
default:
ThrowSrgsException (SRID.InvalidDynamicSetting);
break;
}
break;
#if !NO_STG
case "baseclass":
CheckForDuplicates (ref sBaseClass, reader);
if (string.IsNullOrEmpty (sBaseClass))
{
ThrowSrgsException (SRID.NoName1, "baseclass");
}
break;
case "onInit":
CheckForDuplicates (ref sInit, reader);
sInit = reader.Value;
break;
case "onParse":
CheckForDuplicates (ref sParse, reader);
sParse = reader.Value;
break;
case "onError":
CheckForDuplicates (ref sError, reader);
sError = reader.Value;
break;
case "onRecognition":
CheckForDuplicates (ref sRecognition, reader);
break;
#endif
default:
isInvalidAttribute = true;
break;
}
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidRuleAttribute, reader.Name);
}
}
if (string.IsNullOrEmpty (id))
{
ThrowSrgsException (SRID.NoRuleId);
}
#if !NO_STG
if (sInit != null && publicRule != RulePublic.True)
{
XmlParser.ThrowSrgsException (SRID.OnInitOnPublicRule, "OnInit", id);
}
if (sRecognition != null && publicRule != RulePublic.True)
{
XmlParser.ThrowSrgsException (SRID.OnInitOnPublicRule, "OnRecognition", id);
}
ValidateRuleId (id);
bool hasScript = sInit != null || sParse != null || sError != null || sRecognition != null;
IRule rule = grammar.CreateRule (id, publicRule, ruleDynamic, hasScript);
if (!string.IsNullOrEmpty (sInit))
{
rule.CreateScript (grammar, id, sInit, RuleMethodScript.onInit);
}
if (!string.IsNullOrEmpty (sParse))
{
rule.CreateScript (grammar, id, sParse, RuleMethodScript.onParse);
}
if (!string.IsNullOrEmpty (sError))
{
rule.CreateScript (grammar, id, sError, RuleMethodScript.onError);
}
if (!string.IsNullOrEmpty (sRecognition))
{
rule.CreateScript (grammar, id, sRecognition, RuleMethodScript.onRecognition);
}
rule.BaseClass = sBaseClass;
#else
ValidateRuleId (id);
IRule rule = grammar.CreateRule (id, publicRule, ruleDynamic, false);
#endif
_rules.Add (id);
if (!ProcessChildNodes (reader, rule, rule, "rule"))
{
if (ruleDynamic != RuleDynamic.True)
{
ThrowSrgsException (SRID.InvalidEmptyRule, "rule", id);
}
}
return rule;
}
// The perf gain using .Lengh == 0 other readability is not worth it fixing this FxCop issue
private IRuleRef ParseRuleRef (IElement parent, XmlReader reader)
{
IRuleRef ruleRef = null;
string sAlias = null;
string sParams = null;
string uri = null;
while (reader.MoveToNextAttribute ())
{
bool isInvalidAttribute = false;
switch (reader.NamespaceURI)
{
case emptyNamespace:
switch (reader.LocalName)
{
case "uri":
// Check that the uri pointed to in the ruleref does not point this file
// in srgs.xml: ... = 0)
{
ThrowSrgsException (SRID.InvalidTokenString);
}
return _parser.CreateToken (parent, content, sPronunciation, sDisplay, reqConfidence);
}
///
/// Break the string into individual tokens and ParseToken() each individual token.
///
/// Token string is a sequence of 0 or more white space delimited tokens.
/// Tokens may also be delimited by double quotes. In these cases, the double
/// quotes token must be surrounded by white space or string boundary.
///
/// Parent element
///
///
///
///
private void ParseText (IElement parent, string sChars, string pronunciation, string display, float reqConfidence)
{
System.Diagnostics.Debug.Assert ((parent != null) && (!string.IsNullOrEmpty (sChars)));
ParseText (parent, sChars, pronunciation, display, reqConfidence, new CreateTokenCallback (_parser.CreateToken));
}
private IElement ParseTag (IElement parent, XmlReader reader)
{
string content = GetTagContent (parent, reader);
//Return an empty tag if the content is empty
if (string.IsNullOrEmpty (content))
{
return _parser.CreateSemanticTag (parent);
}
if (_parser.Grammar.TagFormat != SrgsTagFormat.KeyValuePairs)
{
ISemanticTag semanticTag = _parser.CreateSemanticTag (parent);
#if SPEECHSERVER
// For semantic interpretation literal, surround the content of the tag bu "out="
if (_w3c_literal)
{
content = string.Format (CultureInfo.InvariantCulture, "out=\"{0}\";", content);
}
#endif
semanticTag.Content (parent, content, 0);
return semanticTag;
}
System.Diagnostics.Debug.Assert (_parser.Grammar.TagFormat == SrgsTagFormat.KeyValuePairs);
IPropertyTag propertyTag = _parser.CreatePropertyTag (parent); ;
string name;
object value;
ParsePropertyTag (content, out name, out value);
propertyTag.NameValue (parent, name, value);
return propertyTag;
}
private string GetTagContent (IElement parent, XmlReader reader)
{
// A tag format must be specified in the grammar header
if (!_hasTagFormat)
{
ThrowSrgsException (SRID.MissingTagFormat);
}
while (reader.MoveToNextAttribute ())
{
bool isInvalidAttribute = false;
switch (reader.NamespaceURI)
{
case emptyNamespace:
case sapiNamespace:
isInvalidAttribute = true;
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidTagAttribute, reader.Name);
}
}
return GetStringContent (reader).Trim (Helpers._achTrimChars);
}
///
/// Parse the lexicon Element
///
/// Attributes:
/// uri: required
/// type: optional
///
///
private static void ParseLexicon (XmlReader reader)
{
bool isInvalidAttribute = false;
bool fFoundUri = false;
while (reader.MoveToNextAttribute ())
{
switch (reader.LocalName)
{
case "uri":
fFoundUri = true;
break;
case "type":
break;
default:
isInvalidAttribute = true;
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidLexiconAttribute, reader.Name);
}
}
if (!fFoundUri)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "uri", "lexicon");
}
//
}
///
/// Parse the Meta Element
///
/// Attributes:
/// name and http-equiv: one or the other but not bothsd
/// content: required
///
///
private static void ParseMeta (XmlReader reader)
{
bool fFoundContent = false;
bool fFoundNameOrEquiv = false;
bool isInvalidAttribute = false;
while (reader.MoveToNextAttribute ())
{
switch (reader.LocalName)
{
case "name":
case "http-equiv":
if (fFoundNameOrEquiv)
{
ThrowSrgsException (SRID.MetaNameHTTPEquiv);
}
fFoundNameOrEquiv = true;
break;
case "content":
isInvalidAttribute = fFoundContent;
fFoundContent = true;
break;
default:
isInvalidAttribute = true;
break;
}
if (isInvalidAttribute)
{
ThrowSrgsException (SRID.InvalidMetaAttribute, reader.Name);
}
}
if (!fFoundContent)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "content", "meta");
}
if (!fFoundNameOrEquiv)
{
ThrowSrgsException (SRID.MissingRequiredAttribute, "name or http-equiv", "meta");
}
}
#if !NO_STG
private void ParseScript (XmlReader reader, IGrammar grammar)
{
int line = _filename != null ? _xmlTextReader.LineNumber : -1;
string sRule = null;
while (reader.MoveToNextAttribute ())
{
switch (reader.NamespaceURI)
{
case emptyNamespace:
ThrowSrgsException (SRID.InvalidScriptAttribute);
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "rule":
if (string.IsNullOrEmpty (sRule))
{
sRule = reader.Value;
}
else
{
ThrowSrgsException (SRID.RuleAttributeDefinedMultipeTimes);
}
break;
default:
ThrowSrgsException (SRID.InvalidScriptAttribute);
break;
}
break;
}
}
// if no rule or method defined - add the content to the generic _scrip
if (string.IsNullOrEmpty (sRule))
{
_parser.AddScript (grammar, GetStringContent (reader), _filename, line);
}
else
{
// Adds a placeholder for the rule.
// Once all the rules and scripts are read, the placeholder will be replaced with the proper rule.
_scripts.Add (new ForwardReference (sRule, _parser.AddScript (grammar, sRule, GetStringContent (reader), _filename, line)));
}
}
static private void ParseAssemblyReference (XmlReader reader, IGrammar grammar)
{
while (reader.MoveToNextAttribute ())
{
switch (reader.NamespaceURI)
{
case emptyNamespace:
ThrowSrgsException (SRID.InvalidScriptAttribute);
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "assembly":
grammar.AssemblyReferences.Add (reader.Value);
break;
default:
ThrowSrgsException (SRID.InvalidAssemblyReferenceAttribute);
break;
}
break;
}
}
}
static private void ParseImportNamespace (XmlReader reader, IGrammar grammar)
{
while (reader.MoveToNextAttribute ())
{
switch (reader.NamespaceURI)
{
case emptyNamespace:
ThrowSrgsException (SRID.InvalidScriptAttribute);
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "namespace":
grammar.ImportNamespaces.Add (reader.Value);
break;
default:
ThrowSrgsException (SRID.InvalidImportNamespaceAttribute);
break;
}
break;
}
}
}
#endif
private bool ProcessChildNodes (XmlReader reader, IElement parent, IRule rule, string parentName)
{
bool fFirstElement = true;
// Create a list of name value tags for this scope
List tags = null;
reader.MoveToElement (); // Move to containing parent of attributes
if (!reader.IsEmptyElement)
{
reader.Read (); // Move to first child parent
while (reader.NodeType != XmlNodeType.EndElement) // Process each child parent while not at end parent
{
bool isInvalidNode = false;
if (reader.NodeType == XmlNodeType.Element)
{
// Null if no children are allowed
if (parent == null)
{
ThrowSrgsException (SRID.InvalidNotEmptyElement, parentName);
}
IElement child = null;
switch (reader.NamespaceURI)
{
case srgsNamespace:
switch (reader.LocalName)
{
case "example":
if (!(parent is IRule) || !fFirstElement)
{
ThrowSrgsException (SRID.InvalidExampleOrdering);
}
else
{
reader.Skip ();
continue;
}
break;
case "ruleref":
child = ParseRuleRef (parent, reader);
break;
case "one-of":
child = ParseOneOf (parent, rule, reader);
break;
case "item":
child = ParseItem (parent, rule, reader);
break;
case "token":
child = ParseToken (parent, reader);
break;
case "tag":
child = ParseTag (parent, reader);
IPropertyTag tag = child as IPropertyTag;
if (tag != null)
{
// The tag list is delayed as it might not be necessary
if (tags == null)
{
tags = new List ();
}
tags.Add (tag);
}
break;
case "rule":
default:
isInvalidNode = true;
break;
}
break;
case sapiNamespace:
switch (reader.LocalName)
{
case "subset":
if ((parent is IRule) || (parent is IItem))
{
child = ParseSubset (parent, reader);
}
else
{
isInvalidNode = true;
}
break;
default:
isInvalidNode = true;
break;
}
break;
default:
reader.Skip (); // Skip over parents in unknown namespaces
break;
}
isInvalidNode = ParseChildNodeElement (parent, isInvalidNode, child);
fFirstElement = false;
}
else if (reader.NodeType == XmlNodeType.Text || reader.NodeType == XmlNodeType.CDATA)
{
// Null if no children are allowed
if (parent == null)
{
ThrowSrgsException (SRID.InvalidNotEmptyElement, parentName);
}
isInvalidNode = ParseChildNodeText (reader, parent);
fFirstElement = false;
}
else
{
reader.Skip (); // Skip over non-parent/text node types
}
if (isInvalidNode)
{
ThrowSrgsException (SRID.InvalidElement, reader.Name);
}
}
}
reader.Read (); // Move to next sibling
// Generate the tags for this scope
if (tags != null)
{
foreach (IPropertyTag tag in tags)
{
tag.PostParse (parent);
}
}
return !fFirstElement;
}
private bool ParseChildNodeText (XmlReader reader, IElement parent)
{
bool isInvalidNode = false;
string content = reader.Value;
// Create the SrgsElement for the text
IElementText srgsText = _parser.CreateText (parent, content);
// Split it in pieces
ParseText (parent, content, null, null, -1f);
// if the parent is a one of, then the children must be an Item
if (parent is IOneOf)
{
isInvalidNode = true;
}
else
{
IRule parentRule = parent as IRule;
if (parentRule != null)
{
_parser.AddElement (parentRule, srgsText);
}
else
{
IItem parentItem = parent as IItem;
if (parentItem != null)
{
_parser.AddElement (parentItem, srgsText);
}
else
{
isInvalidNode = true;
}
}
}
reader.Read ();
return isInvalidNode;
}
private bool ParseChildNodeElement (IElement parent, bool isInvalidNode, IElement child)
{
// The child parent has not been processed yet
if (child != null)
{
// if the parent is a one of, then the children must be an Item
IOneOf parentOneOf = parent as IOneOf;
if (parentOneOf != null)
{
IItem childItem = child as IItem;
if (childItem != null)
{
_parser.AddItem (parentOneOf, childItem);
}
else
{
isInvalidNode = true;
}
}
else
{
IRule parentRule = parent as IRule;
if (parentRule != null)
{
_parser.AddElement (parentRule, child);
}
else
{
IItem parentItem = parent as IItem;
if (parentItem != null)
{
_parser.AddElement (parentItem, child);
}
else
{
isInvalidNode = true;
}
}
}
}
return isInvalidNode;
}
private void ProcessRulesAndScriptsNodes (XmlReader reader, IGrammar grammar)
{
bool fProcessedRules = false;
// Move to containing element of attributes
reader.MoveToElement ();
if (!reader.IsEmptyElement)
{
// Move to first child element
reader.Read ();
// Process each child element while not at end element
while (reader.NodeType != XmlNodeType.EndElement)
{
bool isInvalidNode = false;
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.NamespaceURI)
{
case srgsNamespace:
switch (reader.LocalName)
{
case "lexicon":
if (fProcessedRules)
{
ThrowSrgsException (SRID.InvalidGrammarOrdering);
}
ParseLexicon (reader);
break;
case "meta":
if (fProcessedRules)
{
ThrowSrgsException (SRID.InvalidGrammarOrdering);
}
ParseMeta (reader);
break;
case "metadata":
if (fProcessedRules)
{
ThrowSrgsException (SRID.InvalidGrammarOrdering);
}
reader.Skip ();
break;
case "rule":
IRule rule = ParseRule (grammar, reader);
rule.PostParse (grammar);
fProcessedRules = true;
break;
case "tag":
if (fProcessedRules || _hasTagFormat && grammar.TagFormat != SrgsTagFormat.W3cV1)
{
ThrowSrgsException (SRID.InvalidGrammarOrdering);
}
grammar.GlobalTags.Add (GetTagContent (grammar, reader));
break;
default:
isInvalidNode = true;
break;
}
break;
case sapiNamespace:
switch (reader.LocalName)
{
#if !NO_STG
case "script":
ParseScript (reader, grammar);
fProcessedRules = true;
break;
case "assemblyReference":
ParseAssemblyReference (reader, grammar);
fProcessedRules = true;
break;
case "importNamespace":
ParseImportNamespace (reader, grammar);
fProcessedRules = true;
break;
#endif
default:
isInvalidNode = true;
break;
}
break;
default:
// Skip over elements in unknown namespaces
reader.Skip ();
break;
}
}
else
{
if (reader.NodeType == XmlNodeType.Text)
{
ThrowSrgsException (SRID.InvalidElement, "text");
}
// Skip over non-element/text node types
reader.Skip ();
}
if (isInvalidNode)
{
ThrowSrgsException (SRID.InvalidElement, reader.Name);
}
}
}
// Move to next sibling
reader.Read ();
}
static private string GetStringContent (XmlReader reader)
{
StringBuilder sb = new StringBuilder ();
reader.MoveToElement (); // Move to containing element of attributes
if (!reader.IsEmptyElement)
{
reader.Read (); // Move to first child element
while (reader.NodeType != XmlNodeType.EndElement) // Process each child element while not at end element
{
sb.Append (reader.ReadString ());
bool isInvalidNode = false;
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.NamespaceURI)
{
case srgsNamespace:
case sapiNamespace:
isInvalidNode = true;
break;
default:
reader.Skip (); // Skip over elements in unknown namespaces
break;
}
}
else if (reader.NodeType != XmlNodeType.EndElement)
{
reader.Skip (); // Skip over non-end element node types
}
if (isInvalidNode)
{
ThrowSrgsException (SRID.InvalidElement, reader.Name);
}
}
}
reader.Read (); // Move to next sibling
return sb.ToString ();
}
/// TODOC <_include file='doc\Tag.uex' path='docs/doc[@for="Tag.RepeatProbability"]/*' />
static void ParsePropertyTag (string sTag, out string name, out object value)
{
// Default value
name = null;
value = string.Empty;
// Name= pszValue = null vValue = VT_EMPTY
// Name="string" pszValue = "string" vValue = VT_EMPTY
// Name=true pszValue = null vValue = VT_BOOL
// Name=123 pszValue = null vValue = VT_I4
// Name=3.14 pszValue = null vValue = VT_R8
int iEqual = sTag.IndexOf ('=');
if (iEqual >= 0)
{
// Set property name
name = sTag.Substring (0, iEqual).Trim (Helpers._achTrimChars);
iEqual++;
}
else
{
iEqual = 0;
}
// Set property value
int cLenProperty = sTag.Length;
if (iEqual < cLenProperty)
{
if (sTag [iEqual] == '"')
{
// Name="string"
iEqual++;
int iEndQuote = sTag.IndexOf ('"', iEqual + 1);
if (iEndQuote + 1 != cLenProperty)
{
// Invalid string value
XmlParser.ThrowSrgsException (SRID.IncorrectAttributeValue, name, sTag.Substring (iEqual));
}
value = sTag.Substring (iEqual, iEndQuote - iEqual);
}
else
{
string sValue = sTag.Substring (iEqual);
int iValue;
if (int.TryParse (sValue, out iValue))
{
// propInfo.pszValue = null
// Name=123
// propInfo.vValue = VT_I4
value = iValue;
}
else
{
double flValue;
if (double.TryParse (sValue, out flValue))
{
// propInfo.pszValue = null
// propInfo.vValue = VT_R8
value = flValue;
}
else
{
bool fValue;
if (bool.TryParse (sValue, out fValue))
{
// Name=true
// propInfo.pszValue = null
// propInfo.vValue = VT_BOOL
value = fValue;
}
else
{
XmlParser.ThrowSrgsException (SRID.InvalidNameValueProperty, name, sValue);
}
}
}
}
}
}
///
/// Convert integer range string to MinValue and MaxValue.
/// For n- format, MaxValue = Int32.MaxValue
/// Valid formats: n|n-|n-m n,m integers
/// integer = [whitespace] [+] [0[{x|X}]] [digits]
///
///
///
///
static private void SetRepeatValues (string repeat, out int minRepeat, out int maxRepeat)
{
minRepeat = maxRepeat = 1;
if (!string.IsNullOrEmpty (repeat))
{
int sep = repeat.IndexOf ("-", StringComparison.Ordinal);
if (sep < 0)
{
int minmax = Convert.ToInt32 (repeat, CultureInfo.InvariantCulture);
// Limit the range of valid values
if (minmax < 0 || minmax > 255)
{
XmlParser.ThrowSrgsException (SRID.MinMaxOutOfRange, minmax, minmax);
}
minRepeat = maxRepeat = minmax;
}
else if (0 < sep)
{
minRepeat = Convert.ToInt32 (repeat.Substring (0, sep), CultureInfo.InvariantCulture);
if (sep < (repeat.Length - 1))
{
maxRepeat = Convert.ToInt32 (repeat.Substring (sep + 1), CultureInfo.InvariantCulture);
}
else
{
maxRepeat = System.Int32.MaxValue;
}
// Limit the range of valid values
if (minRepeat < 0 || minRepeat > 255 || (maxRepeat != System.Int32.MaxValue && (maxRepeat < 0 || maxRepeat > 255)))
{
XmlParser.ThrowSrgsException (SRID.MinMaxOutOfRange, minRepeat, maxRepeat);
}
// Max be greater or equal to min
if (minRepeat > maxRepeat)
{
throw new ArgumentException (SR.Get (SRID.MinGreaterThanMax));
}
}
else
{
ThrowSrgsException (SRID.InvalidItemRepeatAttribute, repeat);
}
}
else
{
ThrowSrgsException (SRID.InvalidItemAttribute2);
}
}
private static void CheckForDuplicates (ref string dest, XmlReader reader)
{
if (!string.IsNullOrEmpty (dest))
{
StringBuilder attribute = new StringBuilder (reader.LocalName);
if (reader.NamespaceURI.Length > 0)
{
attribute.Append (reader.NamespaceURI);
attribute.Append (":");
}
XmlParser.ThrowSrgsException (SRID.InvalidAttributeDefinedTwice, reader.Value, attribute);
}
dest = reader.Value;
}
// Throws exception if the specified Rule does not have a valid Id.
static internal void ValidateRuleId (string id)
{
Helpers.ThrowIfEmptyOrNull (id, "id");
if (!XmlReader.IsName (id) || (id == "NULL") || (id == "VOID") || (id == "GARBAGE") || (id.IndexOfAny (_invalidRuleIdChars) != -1))
{
XmlParser.ThrowSrgsException (SRID.InvalidRuleId, id);
}
}
private void ValidateRulerefNotPointingToSelf (string uri)
{
// Check that the uri pointed to in the ruleref does not point this file
// in srgs.xml: ...
if (_filename != null)
{
if (uri.IndexOf (_shortFilename, StringComparison.Ordinal) == 0 && (uri.Length > _shortFilename.Length && uri [_shortFilename.Length] == '#' || uri.Length == _shortFilename.Length))
{
ThrowSrgsException (SRID.InvalidRuleRefSelf);
}
}
}
private void ValidateScripts ()
{
#if !NO_STG
// Check that the rule and methods are defined for a script
foreach (ForwardReference script in _scripts)
{
if (!_rules.Contains (script._name))
{
ThrowSrgsException (SRID.InvalidScriptDefinition, script._name);
}
}
#endif
// Validate for unique rule names
List ruleNames = new List ();
foreach (string rule in _rules)
{
if (ruleNames.Contains (rule))
{
XmlParser.ThrowSrgsException (SRID.RuleAttributeDefinedMultipeTimes, rule);
}
ruleNames.Add (rule);
}
}
#endregion
//********************************************************************
//
// Private Fields
//
//*******************************************************************
#region Private Fields
private IElementFactory _parser;
// Avoid to do a cast many times
private XmlReader _reader;
// Avoid to do a cast many times
private XmlTextReader _xmlTextReader;
// Save the filename
private string _filename;
// Save the filename without the path
private string _shortFilename;
// Language Id for this grammar
private CultureInfo _langId;
// Has the Grammar element a FormatTag
private bool _hasTagFormat;
#if SPEECHSERVER
// Has the Grammar element a FormatTag
private bool _w3c_literal;
#endif
// All defined rules
List _rules = new List ();
#if !NO_STG
List _scripts = new List ();
#endif
static private readonly char [] _invalidRuleIdChars = new char [] { '.', ':', '-', '#' };
static private readonly char [] _SlashBackSlash = new char [] { '\\', '/' };
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- CodeParameterDeclarationExpression.cs
- ProfileInfo.cs
- ProfileEventArgs.cs
- SortedDictionary.cs
- DependentList.cs
- SystemThemeKey.cs
- MaterializeFromAtom.cs
- RenderDataDrawingContext.cs
- ProxyWebPart.cs
- NetSectionGroup.cs
- ActionMismatchAddressingException.cs
- ImageIndexEditor.cs
- ConfigXmlElement.cs
- SafeRegistryHandle.cs
- StatusBarDrawItemEvent.cs
- Serializer.cs
- SplineKeyFrames.cs
- DataTableMapping.cs
- CustomErrorCollection.cs
- CapiSafeHandles.cs
- ResourceDescriptionAttribute.cs
- Helpers.cs
- TraceSwitch.cs
- Vector3DCollectionConverter.cs
- RSAPKCS1SignatureFormatter.cs
- ProcessHostFactoryHelper.cs
- tooltip.cs
- SmiEventSink_Default.cs
- ImageMap.cs
- ContextMenu.cs
- PersonalizationStateInfoCollection.cs
- DataGridViewTextBoxColumn.cs
- TreeViewDataItemAutomationPeer.cs
- AttributeQuery.cs
- RenderDataDrawingContext.cs
- DebugView.cs
- EtwTrace.cs
- RegistryConfigurationProvider.cs
- ListViewHitTestInfo.cs
- RegistryConfigurationProvider.cs
- VisualCollection.cs
- InlineCollection.cs
- GroupByQueryOperator.cs
- DesignerAutoFormat.cs
- OleAutBinder.cs
- ActivationServices.cs
- BinaryReader.cs
- SqlBuilder.cs
- SqlConnectionHelper.cs
- NativeCompoundFileAPIs.cs
- HttpWebResponse.cs
- Line.cs
- HttpHeaderCollection.cs
- TitleStyle.cs
- KeyPullup.cs
- SoapWriter.cs
- CollectionViewSource.cs
- ClosableStream.cs
- ObjectPersistData.cs
- PartialArray.cs
- DataGridViewComboBoxEditingControl.cs
- RenderOptions.cs
- UserNamePasswordValidator.cs
- ContextMenu.cs
- Activator.cs
- HtmlFormAdapter.cs
- WorkflowMarkupSerializationProvider.cs
- RtfToken.cs
- HijriCalendar.cs
- AnnouncementEndpointElement.cs
- KeyFrames.cs
- ContextConfiguration.cs
- RightNameExpirationInfoPair.cs
- HttpFileCollection.cs
- DeadCharTextComposition.cs
- RouteItem.cs
- MultiBinding.cs
- BitmapEffectrendercontext.cs
- WindowsFormsSynchronizationContext.cs
- BufferModeSettings.cs
- Assembly.cs
- OdbcDataReader.cs
- StringInfo.cs
- UIElement.cs
- ToggleButtonAutomationPeer.cs
- JavascriptXmlWriterWrapper.cs
- ReferenceEqualityComparer.cs
- TCEAdapterGenerator.cs
- PointAnimationUsingPath.cs
- SmtpException.cs
- XamlParser.cs
- AbstractDataSvcMapFileLoader.cs
- ScrollChrome.cs
- SqlProcedureAttribute.cs
- ApplicationHost.cs
- XmlException.cs
- SqlSelectStatement.cs
- BindingCompleteEventArgs.cs
- MD5CryptoServiceProvider.cs
- AssociationType.cs