/// <summary>
/// Matches a <c>ExpressionList</c> non-terminal.
/// </summary>
/// <returns><c>true</c> if the <c>ExpressionList</c> was matched successfully; otherwise, <c>false</c>.</returns>
/// <remarks>
/// The non-terminal can start with: <c>Function</c>, <c>OpenParenthesis</c>, <c>OpenCurlyBrace</c>, <c>Identifier</c>, <c>TripleDot</c>, <c>Nil</c>, <c>False</c>, <c>True</c>, <c>Number</c>, <c>Subtraction</c>, <c>Not</c>, <c>Hash</c>, <c>String</c>.
/// </remarks>
protected virtual bool MatchExpressionList(IAstNodeList expressions) {
Expression expression = null;
if (!this.MatchExpression(out expression))
return false;
expressions.Add( expression );
while (this.TokenIs(this.LookAheadToken, LuatTokenId.Comma)) {
if (!this.Match(LuatTokenId.Comma))
return false;
if (!this.MatchExpression(out expression))
return false;
expressions.Add( expression );
}
return true;
}
/// <summary>
/// Matches a <c>IdentifierList</c> non-terminal.
/// </summary>
/// <returns><c>true</c> if the <c>IdentifierList</c> was matched successfully; otherwise, <c>false</c>.</returns>
/// <remarks>
/// The non-terminal can start with: <c>Identifier</c>.
/// </remarks>
protected virtual bool MatchIdentifierList(IAstNodeList list) {
Identifier identifier = null;
if (!this.MatchIdentifier(out identifier))
return false;
list.Add( identifier );
while (this.TokenIs(this.LookAheadToken, LuatTokenId.Comma)) {
if (!this.Match(LuatTokenId.Comma))
return false;
if (!this.MatchIdentifier(out identifier))
return false;
list.Add( identifier );
}
return true;
}
/// <summary>
/// Matches a <c>VariableList</c> non-terminal.
/// </summary>
/// <returns><c>true</c> if the <c>VariableList</c> was matched successfully; otherwise, <c>false</c>.</returns>
/// <remarks>
/// The non-terminal can start with: <c>Identifier</c>.
/// </remarks>
protected virtual bool MatchVariableList(IAstNodeList variables) {
Expression variable;
if (!this.MatchVariable(out variable))
return false;
variables.Add( variable );
while (this.TokenIs(this.LookAheadToken, LuatTokenId.Comma)) {
if (!this.Match(LuatTokenId.Comma))
return false;
if (!this.MatchVariable(out variable))
return false;
variables.Add( variable );
}
return true;
}
/// <summary>
/// Matches a <c>FieldList</c> non-terminal.
/// </summary>
/// <returns><c>true</c> if the <c>FieldList</c> was matched successfully; otherwise, <c>false</c>.</returns>
/// <remarks>
/// The non-terminal can start with: <c>Function</c>, <c>OpenParenthesis</c>, <c>OpenCurlyBrace</c>, <c>OpenSquareBracket</c>, <c>Identifier</c>, <c>TripleDot</c>, <c>Nil</c>, <c>False</c>, <c>True</c>, <c>Number</c>, <c>Subtraction</c>, <c>Not</c>, <c>Hash</c>, <c>String</c>.
/// </remarks>
protected virtual bool MatchFieldList(IAstNodeList fields) {
Field field;
if (!this.MatchField(out field))
return false;
fields.Add( field );
if (((this.TokenIs(this.LookAheadToken, LuatTokenId.SemiColon)) || (this.TokenIs(this.LookAheadToken, LuatTokenId.Comma)))) {
if (!this.MatchFieldSep())
return false;
if (this.IsInMultiMatchSet(4, this.LookAheadToken)) {
if (!this.MatchFieldList(fields))
return false;
}
}
return true;
}
