/// <summary>
/// If a value is pure Expression.
/// </summary>
/// <param name="context">Key value structure value context.</param>
/// <param name="expression">String expression.</param>
/// <returns>Is pure expression or not.</returns>
public static bool IsPureExpression(this LGTemplateParser.KeyValueStructureValueContext context, out string expression)
{
expression = context.GetText();
var hasExpression = false;
foreach (ITerminalNode node in context.children)
{
switch (node.Symbol.Type)
{
case LGTemplateParser.ESCAPE_CHARACTER_IN_STRUCTURE_BODY:
return(false);
case LGTemplateParser.EXPRESSION_IN_STRUCTURE_BODY:
if (hasExpression)
{
return(false);
}
hasExpression = true;
expression = node.GetText();
break;
default:
if (!string.IsNullOrWhiteSpace(node.GetText()))
{
return(false);
}
break;
}
}
return(hasExpression);
}
/// <summary>
/// If a value is pure Expression.
/// </summary>
/// <param name="context">Key value structure value context.</param>
/// <returns>Is pure expression or not.</returns>
public static bool IsPureExpression(this LGTemplateParser.KeyValueStructureValueContext context)
{
if (context.expressionInStructure() == null ||
context.expressionInStructure().Length != 1)
{
return(false);
}
return(context.expressionInStructure(0).GetText().Trim() == context.GetText().Trim());
}
/// <summary>
/// Exit a parse tree produced by <see cref="LGTemplateParser.keyValueStructureValue"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitKeyValueStructureValue([NotNull] LGTemplateParser.KeyValueStructureValueContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="LGTemplateParser.keyValueStructureValue"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitKeyValueStructureValue([NotNull] LGTemplateParser.KeyValueStructureValueContext context)
{
return(VisitChildren(context));
}
