C# (CSharp) LogicalExpression.AndSkip示例

示例#1

        /// <summary>
        /// Redefine the standard Liquid {% if %} tag to allow "{% elsif %}" or "{% elseif %}".
        /// </summary>
        private void RegisterLavaElseIfTag()
        {
            var ifTag = LogicalExpression
                        .AndSkip(TagEnd)
                        .And(_anyTagsListParser)
                        .And(ZeroOrMany(
                                 TagStart.SkipAnd(Terms.Text("elsif").Or(Terms.Text("elseif"))).SkipAnd(LogicalExpression).AndSkip(TagEnd).And(_anyTagsListParser))
                             .Then(x => x.Select(e => new ElseIfStatement(e.Item1, e.Item2)).ToList()))
                        .And(ZeroOrOne(
                                 CreateTag("else").SkipAnd(_anyTagsListParser))
                             .Then(x => x != null ? new ElseStatement(x) : null))
                        .AndSkip(CreateTag("endif").ElseError($"'{{% endif %}}' was expected"))
                        .Then <Statement>(x => new IfStatement(x.Item1, x.Item2, x.Item4, x.Item3))
                        .ElseError("Invalid 'if' tag");

            RegisteredTags["if"] = ifTag;
        }