private bool ParseSingleLineBlock()
{
Context.UpdateSeenValidEmailPrefix();
// Output the ":" as a transition token
Context.AcceptCurrent();
End(MetaCodeSpan.Create);
while (!EndOfFile)
{
if (!TryStartCodeParser(isSingleLineMarkup: true))
{
if (ParserHelpers.IsNewLine(CurrentCharacter))
{
Context.AcceptNewLine();
return(false);
}
else
{
Context.UpdateSeenValidEmailPrefix();
Context.AcceptCurrent();
}
}
}
return(true);
}
protected bool RequireSingleWhiteSpace()
{
if (Char.IsWhiteSpace(CurrentCharacter))
{
if (ParserHelpers.IsNewLine(CurrentCharacter))
{
Context.AcceptNewLine();
}
else
{
Context.AcceptCurrent();
}
return(true);
}
return(false);
}
/// <summary>
/// Parses the modeltype statement.
/// </summary>
/// <param name="block">The code block.</param>
public bool ParseModelTypeStatement(CodeBlockInfo block)
{
Contract.Requires(block != null);
using (StartBlock(BlockType.Directive))
{
block.ResumeSpans(Context);
SourceLocation location = CurrentLocation;
bool readWhitespace = RequireSingleWhiteSpace();
End(MetaCodeSpan.Create(Context, false, readWhitespace ? AcceptedCharacters.None : AcceptedCharacters.Any));
if (_modelOrInheritsStatementFound)
{
OnError(location, "The modeltype or inherits keywords can only appear once.");
}
_modelOrInheritsStatementFound = true;
// Accept Whitespace up to the new line or non-whitespace character
Context.AcceptWhiteSpace(false);
string typeName = null;
if (ParserHelpers.IsIdentifierStart(CurrentCharacter))
{
using (Context.StartTemporaryBuffer())
{
Context.AcceptUntil(ParserHelpers.IsNewLine);
typeName = Context.ContentBuffer.ToString();
Context.AcceptTemporaryBuffer();
}
Context.AcceptNewLine();
}
else
{
OnError(location, "Expected model identifier.");
}
End(new ModelSpan(Context, typeName));
}
return(false);
}
private bool ParseModelStatement(CodeBlockInfo block)
{
using (StartBlock(BlockType.Directive)) {
block.ResumeSpans(Context);
SourceLocation endModelLocation = CurrentLocation;
bool readWhitespace = RequireSingleWhiteSpace();
End(MetaCodeSpan.Create(Context, hidden: false, acceptedCharacters: readWhitespace ? AcceptedCharacters.None : AcceptedCharacters.Any));
if (_modelStatementFound)
{
OnError(endModelLocation, String.Format(CultureInfo.CurrentCulture, MvcResources.MvcRazorCodeParser_OnlyOneModelStatementIsAllowed, ModelTypeKeyword));
}
_modelStatementFound = true;
// Accept Whitespace up to the new line or non-whitespace character
Context.AcceptWhiteSpace(includeNewLines: false);
string typeName = null;
if (ParserHelpers.IsIdentifierStart(CurrentCharacter))
{
using (Context.StartTemporaryBuffer()) {
Context.AcceptUntil(c => ParserHelpers.IsNewLine(c));
typeName = Context.ContentBuffer.ToString();
Context.AcceptTemporaryBuffer();
}
Context.AcceptNewLine();
}
else
{
OnError(endModelLocation, String.Format(CultureInfo.CurrentCulture, MvcResources.MvcRazorCodeParser_ModelKeywordMustBeFollowedByTypeName, ModelTypeKeyword));
}
CheckForInheritsAndModelStatements();
End(new ModelSpan(Context, typeName));
}
return(false);
}
/// <summary>
/// Parses the model statement.
/// </summary>
/// <param name="block">The code block.</param>
private bool ParseModelStatement(CodeBlockInfo block)
{
var location = CurrentLocation;
bool readWhiteSpace = RequireSingleWhiteSpace();
End(MetaCodeSpan.Create(Context, false, readWhiteSpace ? AcceptedCharacters.None : AcceptedCharacters.Any));
if (_modelOrInheritsStatementFound)
{
OnError(location, "The model or inherits keywords can only appear once.");
}
_modelOrInheritsStatementFound = true;
Context.AcceptWhiteSpace(false);
string typeName = null;
if (ParserHelpers.IsIdentifierStart(CurrentCharacter))
{
using (Context.StartTemporaryBuffer())
{
Context.AcceptUntil(ParserHelpers.IsNewLine);
typeName = Context.ContentBuffer.ToString();
Context.AcceptTemporaryBuffer();
}
Context.AcceptNewLine();
}
else
{
OnError(location, "Expected model identifier.");
}
End(new ModelSpan(Context, typeName));
return(false);
}
private bool ParseTagBlock(bool inDocument)
{
// For tracking end tags
Stack <TagInfo> tags = new Stack <TagInfo>();
bool startedByPseudoTag = false;
bool?canGrow = null;
do
{
// Append until the next tag, processing code as we find it
AppendUntilAndParseCode(c => c == '<');
// Read the tag name in lookahead since we might not actually want to accept it
TagInfo tag = ParseStartOfTag();
// Special case for "<text>" tag as the first tag we've seen
if (IsPsuedoTagValidHere(inDocument, tags, startedByPseudoTag, tag))
{
if (!tag.IsEndTag)
{
startedByPseudoTag = true; // Set a flag to indicate that a </text> is a valid end tag
if (ParseStartPsuedoTag(tags, tag))
{
// Can't just do "canGrow = !ParseStartPsuedoTag(...)" because we can't canGrow to
// stay null if we get false from ParseStartPsuedoTag
canGrow = false;
}
}
else
{
ParseEndPsuedoTag(tags, tag, inDocument);
canGrow = false;
}
}
// It wasn't a "<text>" OR it was but it was within a block, so we don't do anything special
else
{
// We're at the '<'
Context.AcceptCurrent(); // "<"
if (tag.IsEndTag)
{
Context.AcceptCurrent(); // "/"
}
Context.AcceptCharacters(tag.Name.Length); // tag name
// Invalid tag name? Not a real tag
if (!String.IsNullOrEmpty(tag.Name))
{
// What kind of tag is it
bool?unterminated = null;
switch (tag.Name[0])
{
case '!':
unterminated = ParseBangTag(tag.Name);
break;
case '?':
unterminated = ParseProcessingInstruction();
break;
default:
if (tag.IsEndTag)
{
unterminated = ParseEndTag(tags, tag, inDocument);
}
else
{
unterminated = ParseStartTag(tags, tag);
}
break;
}
if (tags.Count == 0 && unterminated != null)
{
canGrow = unterminated.Value;
}
}
else
{
canGrow = true;
if (tags.Count == 0)
{
OnError(CurrentLocation, RazorResources.ParseError_OuterTagMissingName);
}
}
}
} while (!EndOfFile && tags.Count > 0);
if (canGrow == null)
{
canGrow = tags.Count > 0;
}
if (tags.Count > 0)
{
// Ended because of EOF, not matching close tag. Throw error for last tag
while (tags.Count > 1)
{
tags.Pop();
}
TagInfo tag = tags.Pop();
OnError(tag.Start, RazorResources.ParseError_MissingEndTag, tag.Name);
}
// Add the remaining whitespace (up to and including the next newline) to the token if run-time mode
if (!DesignTimeMode)
{
// Dev10 Bug 884969 - Emit space between markup and code
Context.AcceptWhiteSpace(includeNewLines: false);
if (Char.IsWhiteSpace(CurrentCharacter))
{
Context.AcceptLine(includeNewLineSequence: true);
}
}
else if (canGrow.Value)
{
Context.AcceptWhiteSpace(includeNewLines: false);
if (ParserHelpers.IsNewLine(CurrentCharacter))
{
Context.AcceptNewLine();
}
}
return(canGrow.Value);
}
