BadHtmlNodeTransformer.cs

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using System;
using System.Collections.Generic;
 
using BadHtml.Transformer;
 
using BadScript2.Runtime.Objects;
 
using HtmlAgilityPack;
 
namespace BadHtml;
 
public abstract class BadHtmlNodeTransformer
{
    private static readonly List<BadHtmlNodeTransformer> s_Transformers = new List<BadHtmlNodeTransformer>
    {
        new BadInsertNodeTransformer(),
        new BadImportTemplateNodeTransformer(),
        new BadImportFileNodeTransformer(),
        new BadExecuteScriptNodeTransformer(),
        new BadForEachNodeTransformer(),
        new BadWhileNodeTransformer(),
        new BadFunctionNodeTransformer(),
        new BadIfNodeTransformer(),
        new BadCopyStyleNodeTransformer(),
        new BadCopyScriptNodeTransformer(),
        new BadComponentNodeTransformer(),
        new BadTextNodeTransformer(),
        new BadCopyNodeTransformer(),
    };
 
    protected abstract bool CanTransform(BadHtmlContext context);
 
    protected abstract void TransformNode(BadHtmlContext context);
 
    protected static void TransformAttributes(BadHtmlContext context, HtmlNode outputNode)
    {
        foreach (HtmlAttribute attribute in context.InputNode.Attributes)
        {
            //Get Attribute Value
            string value = attribute.Value;
 
            //Replace all newlines with spaces
            value = value.Replace("\n", " ")
                         .Replace("\r", " ");
 
            //Evaluate Attribute Value with BadScript
            BadObject result =
                context.ParseAndExecute("$\"" + value + "\";", context.CreateAttributePosition(attribute));
 
            //Set Attribute Value
            outputNode.Attributes[attribute.Name].Value = result.ToString();
        }
    }
 
    public static void Transform(BadHtmlContext context)
    {
        foreach (BadHtmlNodeTransformer transformer in s_Transformers)
        {
            if (!transformer.CanTransform(context))
            {
                continue;
            }
 
            transformer.TransformNode(context);
 
            return;
        }
 
        throw new InvalidOperationException("No transformer found");
    }
}