Dominic Höglinger
154647083c
- Thread runtime Context through expression trees via ParameterExpression instead of baking a parse-time constant (Node was always null) - Fix ExpressionPart to compile Func<Context,string> and invoke with live ctx - Coerce double arithmetic expressions to string before lambda wrapping - Remove HasAttributes guard in attr() that blocked new attribute creation - Replace GetLevel(XmlNode) with XElement.Parent-based implementation - Add cdata()/cdata(txt) functions to read/write CDATA nodes in place, preserving the XCData wrapper that SetValue() would destroy Clanker: claude-sonnet_4.6
73 lines
1.7 KiB
C#
73 lines
1.7 KiB
C#
using System;
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using Sprache;
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using XNeedle.Parser;
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using XNeedle.Parser.Elements;
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namespace XNeedle.Transformation
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{
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public class ContextFunctions
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{
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public static string hex(Context ctx, double value)
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{
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uint v = (uint)value;
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return $"#x{v:X8}";
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}
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public static double GetLevel(Context ctx)
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{
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int level = 0;
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System.Xml.Linq.XElement? n = ctx.Node;
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while (null != (n = n?.Parent))
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level++;
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return level;
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}
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public static double crc(Context ctx)
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{
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if (ctx.Node is null)
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{
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return 0;
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}
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int crc = 0xAFFE;
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return (double)crc;
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}
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public static string text(Context ctx)
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{
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if (ctx.Node is null) return "";
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return ctx.Node.Value;
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}
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public static string text(Context ctx, string txt)
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{
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if (ctx.Node is null) return "";
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ctx.Node.SetValue(txt);
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return txt;
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}
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public static string attr(Context ctx, string name, string value)
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{
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if (ctx.Node is null) return "";
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var attr = ctx.Node.Attribute(name);
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if (attr != null)
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{
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attr.Value = value;
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}
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else
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{
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ctx.Node.SetAttributeValue(name, value);
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}
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return "";
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}
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public static string attr(Context ctx, string name)
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{
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var attr = ctx.Node?.Attribute(name);
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if (attr != null)
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{
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return attr.Value;
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}
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return "";
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}
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}
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} |