feat(hiccup-markdown): add metadata support for <hr> tags

thi-ng · Feb 26, 2023 · d5c84c9 · d5c84c9
1 parent b7c310f
commit d5c84c9
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Showing 3 changed files with 19 additions and 5 deletions.
diff --git a/packages/hiccup-markdown/src/api.ts b/packages/hiccup-markdown/src/api.ts
@@ -24,8 +24,14 @@ export interface TagTransforms {
 	footnote(ctx: MDParseContext, id: string, body: any[], meta?: any): any;
 	footnoteRef(ctx: MDParseContext, id: string): any;
 	footnoteWrapper(ctx: MDParseContext, notes: IObjectOf<any>): any;
-	heading(ctx: MDParseContext, level: number, id: string, body: any[], meta?: any): any;
-	hr(ctx: MDParseContext, length: number): any;
+	heading(
+		ctx: MDParseContext,
+		level: number,
+		id: string,
+		body: any[],
+		meta?: any
+	): any;
+	hr(ctx: MDParseContext, length: number, meta?: any): any;
 	img(ctx: MDParseContext, label: string, src: string, title?: string): any;
 	italic(ctx: MDParseContext, body: any[]): any;
 	kbd(ctx: MDParseContext, key: string): any;

diff --git a/packages/hiccup-markdown/src/parse.ts b/packages/hiccup-markdown/src/parse.ts
@@ -147,7 +147,7 @@ export const DEFAULT_TAG_TRANSFORMS: TagTransforms = {
 		withMeta({ id }, meta),
 		...body,
 	],
-	hr: (_, __length) => ["hr", { __length }],
+	hr: (_, __length, meta?) => ["hr", withMeta({ __length }, meta)],
 	img: (_, alt, src, title) => ["img", { src, alt, title }],
 	italic: (_, body) => ["em", {}, ...body],
 	kbd: (_, key) => ["kbd", {}, key],
@@ -415,8 +415,10 @@ export const walk: Fn3<
 			ctx.meta = null;
 		},
 
-		hr: (scope, ctx, acc) =>
-			__collect(acc, ctx.tags.hr(ctx, scope.result.length)),
+		hr: (scope, ctx, acc) => {
+			__collect(acc, ctx.tags.hr(ctx, scope.result.length, ctx.meta));
+			ctx.meta = null;
+		},
 
 		img: ({ children }, ctx, acc) =>
 			__collect(

diff --git a/packages/hiccup-markdown/test/parse.ts b/packages/hiccup-markdown/test/parse.ts
@@ -527,6 +527,12 @@ with linebreaks
 		]);
 	},
 
+	"meta hr": () => {
+		check("{{{ front matter }}}\n---", [
+			["hr", { __length: 3, __meta: "front matter" }],
+		]);
+	},
+
 	"meta list": () => {
 		check("{{{ foo }}}\n- Hello", [
 			["ul", { __meta: "foo" }, ["li", {}, "Hello"]],