// a regular ol' line of text
public override int VisitLine_statement(YarnSpinnerParser.Line_statementContext context)
{
// TODO: add support for line conditions:
//
// Mae: here's a line <<if true>>
//
// is identical to
//
// <<if true>>
// Mae: here's a line
// <<endif>>
// Convert the formatted string into a string with
// placeholders, and evaluate the inline expressions and push
// the results onto the stack.
GenerateFormattedText(context.line_formatted_text().children, out var composedString, out var expressionCount);
// Get the lineID for this string from the hashtags if it has one; otherwise, a new one will be created
string lineID = compiler.GetLineID(context.hashtag());
var hashtagText = GetHashtagTexts(context.hashtag());
int lineNumber = context.Start.Line;
string stringID = compiler.RegisterString(
composedString.ToString(),
compiler.CurrentNode.Name,
lineID,
lineNumber,
hashtagText);
compiler.Emit(OpCode.RunLine, new Operand(stringID), new Operand(expressionCount));
return(0);
}
public override int VisitLine_statement([NotNull] YarnSpinnerParser.Line_statementContext context)
{
int lineNumber = context.Start.Line;
string lineID = Compiler.GetLineID(context.hashtag());
var hashtagText = GetHashtagTexts(context.hashtag());
GenerateFormattedText(context.line_formatted_text().children, out var composedString, out var expressionCount);
string stringID = stringTableManager.RegisterString(
composedString.ToString(),
fileName,
currentNodeName,
lineID,
lineNumber,
hashtagText);
if (lineID == null)
{
var hashtag = new YarnSpinnerParser.HashtagContext(context, 0);
hashtag.text = new CommonToken(YarnSpinnerLexer.HASHTAG_TEXT, stringID);
context.AddChild(hashtag);
}
return(0);
}
// a regular ol' line of text
public override int VisitLine_statement(YarnSpinnerParser.Line_statementContext context)
{
// TODO: add support for line conditions:
//
// Mae: here's a line <<if true>>
//
// is identical to
//
// <<if true>> Mae: here's a line <<endif>>
// Evaluate the inline expressions and push the results onto the
// stack.
var expressionCount = this.GenerateCodeForExpressionsInFormattedText(context.line_formatted_text().children);
// Get the lineID for this string from the hashtags
var lineIDTag = Compiler.GetLineIDTag(context.hashtag());
if (lineIDTag == null)
{
throw new InvalidOperationException("Internal error: line should have an implicit or explicit line ID tag, but none was found");
}
var lineID = lineIDTag.text.Text;
this.compiler.Emit(OpCode.RunLine, context.Start, new Operand(lineID), new Operand(expressionCount));
return(0);
}
// a regular ol' line of text
public override int VisitLine_statement(YarnSpinnerParser.Line_statementContext context)
{
// TODO: add support for line conditions:
//
// Mae: here's a line <<if true>>
//
// is identical to
//
// <<if true>> Mae: here's a line <<endif>>
// Evaluate the inline expressions and push the results onto
// the stack.
var expressionCount = GenerateCodeForExpressionsInFormattedText(context.line_formatted_text().children);
// Get the lineID for this string from the hashtags
string lineID = Compiler.GetLineID(context.hashtag());
if (lineID == null)
{
throw new ParseException("No line ID specified");
}
compiler.Emit(OpCode.RunLine, new Operand(lineID), new Operand(expressionCount));
return(0);
}
public override int VisitLine_statement([NotNull] YarnSpinnerParser.Line_statementContext context)
{
int lineNumber = context.Start.Line;
YarnSpinnerParser.HashtagContext[] hashtags = context.hashtag();
var lineIDTag = Compiler.GetLineIDTag(hashtags);
var lineID = lineIDTag?.text.Text ?? null;
var hashtagText = GetHashtagTexts(hashtags);
GenerateFormattedText(context.line_formatted_text().children, out var composedString, out var expressionCount);
// Does this string table already have a string with this ID?
if (lineID != null && stringTableManager.ContainsKey(lineID))
{
// If so, this is an error.
ParserRuleContext diagnosticContext;
diagnosticContext = lineIDTag ?? (ParserRuleContext)context;
this.diagnostics.Add(new Diagnostic(fileName, diagnosticContext, $"Duplicate line ID {lineID}"));
return(0);
}
string stringID = stringTableManager.RegisterString(
composedString.ToString(),
fileName,
currentNodeName,
lineID,
lineNumber,
hashtagText);
if (lineID == null)
{
var hashtag = new YarnSpinnerParser.HashtagContext(context, 0);
hashtag.text = new CommonToken(YarnSpinnerLexer.HASHTAG_TEXT, stringID);
context.AddChild(hashtag);
}
return(0);
}
/// <inheritdoc/>
public override void ExitLine_statement([NotNull] YarnSpinnerParser.Line_statementContext context)
{
// We're looking at a complete line statement.
// First, figure out if this line statement already has a line
// tag. Start by taking the hashtags...
var hashtags = context.hashtag();
// Get the text for all of these hashtags...
var texts = StringTableGeneratorVisitor.GetHashtagTexts(hashtags);
// And then look for a line ID hashtag.
foreach (var text in texts)
{
if (text.StartsWith("line:"))
{
// This line contains a line code. Nothing left to do.
return;
}
}
// Find the index of the first token on the default channel to
// the left of the newline.
var previousTokenIndex = IndexOfPreviousTokenOnChannel(
TokenStream,
context.NEWLINE().Symbol.TokenIndex,
YarnSpinnerLexer.DefaultTokenChannel
);
// Did we find one?
if (previousTokenIndex == -1)
{
// No token was found before this newline. This is an
// internal error - there must be at least one symbol
// besides the terminating newline.
throw new InvalidOperationException($"Internal error: failed to find any tokens before the newline in line statement on line {context.Start.Line}");
}
// Get the token at this index. We'll put our tag after it.
var previousToken = TokenStream.Get(previousTokenIndex);
// Generate a new, unique line ID.
string newLineID = Utility.GenerateString(existingStrings);
// Record that we've used this new line ID, so that we don't
// accidentally use it twice.
existingStrings.Add(newLineID);
// Create a text replacement that inserts a space followed by
// the line tag at the end of the line.
var replacement = new Upgrader.TextReplacement()
{
Start = previousToken.StopIndex + 1,
StartLine = previousToken.Line,
OriginalText = "",
ReplacementText = $" #{newLineID} ",
Comment = "Added line tag"
};
// Add this replacement to the list.
this.Replacements.Add(replacement);
}