Detect variables as they are parsed in the AST (#809)

Mpdreamz · web-flow · commit fd7ea64e7237 · 2025-03-21T10:41:30.000+01:00
diff --git a/src/Elastic.Markdown/Myst/Substitution/SubstitutionParser.cs b/src/Elastic.Markdown/Myst/Substitution/SubstitutionParser.cs
@@ -147,6 +147,8 @@ public override bool Match(InlineProcessor processor, ref StringSlice slice)
 			found = true;
 			replacement = value;
 		}
+		if (found)
+			context.Build.Collector.CollectUsedSubstitutionKey(key);
 
 		var start = processor.GetSourcePosition(startPosition, out var line, out var column);
 		var end = processor.GetSourcePosition(slice.Start);

Original file line number	Diff line number	Diff line change
`@@ -147,6 +147,8 @@ public override bool Match(InlineProcessor processor, ref StringSlice slice)`
`147`	`147`	`found = true;`
`148`	`148`	`replacement = value;`
`149`	`149`	`}`
	`150`	`+ if (found)`
	`151`	`+ context.Build.Collector.CollectUsedSubstitutionKey(key);`
`150`	`152`
`151`	`153`	`var start = processor.GetSourcePosition(startPosition, out var line, out var column);`
`152`	`154`	`var end = processor.GetSourcePosition(slice.Start);`