public void Build(TokenList tokens)
{
instructionListToken = tokens.Current;
if (isStandardSection)
{
tokens.Advance(); // only advance past the section token if
}
// if the current token is the name of the instruction list, store it
if (tokens.Current != null)
{
if (tokens.Current.TokenType == TokenType.QuotedString)
{
name = tokens.Current.Value;
tokens.Advance();
}
}
// read each instruction, one by one until the end of the instruction list is reached
while (tokens.Current != null)
{
// if we've reached a token indicating the end of this instruction block, advance past the ending token and return
if ((!isLoopBlock && Token.IsEnd(tokens.Current)) ||
(isLoopBlock && Token.IsLoop(tokens.Current)) ||
(acceptELSEInPlaceOfEND && (Token.IsElse(tokens.Current) || Token.IsElseIf(tokens.Current))))
{
// record the type of terminating token then advance past it
switch (tokens.Current.Value)
{
case "else": terminator = TerminatorType.Else; break;
case "elseif": terminator = TerminatorType.ElseIf; break;
case "loop": terminator = TerminatorType.Loop; break;
}
tokens.Advance();
return;
}
list.Add(TokenParser.BuildInstruction(tokens));
}
}
public SprocketScript(string source, string descriptiveName, string scriptIdentificationString)
{
this.source = source;
this.identifier = new ExecutionState.ScriptRecursionIdentifier(descriptiveName, scriptIdentificationString);
TokenList tokens;
try
{
tokens = Tokeniser.Extract(source);
}
catch (TokeniserException ex)
{
Token falseToken = new Token(source.Substring(ex.Position, 1), TokenType.FreeText, ex.Position);
Token token = new Token(GetErrorHTML(ex.Message, falseToken, null), TokenType.FreeText, 0);
tokens = new TokenList(new List <Token>(new Token[] { token }));
instruction = new ShowInstruction();
instruction.Build(tokens);
hasError = true;
exception = ex;
return;
}
try
{
instruction = TokenParser.BuildInstruction(tokens);
}
catch (TokenParserException ex)
{
Token token = new Token(GetErrorHTML(ex.Message, ex.Token, null), TokenType.FreeText, 0);
tokens = new TokenList(new List <Token>(new Token[] { token }));
instruction = new ShowInstruction();
instruction.Build(tokens);
hasError = true;
}
}