feat(ofm): add options to parse arrows

docs/features/Obsidian compatibility.md

@@ -25,6 +25,7 @@ Finally, Quartz also provides `Plugin.CrawlLinks` which allows you to customize
     - `callouts`: whether to enable [[callouts]]. Defaults to `true`
     - `mermaid`: whether to enable [[Mermaid diagrams]]. Defaults to `true`
     - `parseTags`: whether to try and parse tags in the content body. Defaults to `true`
+    - `parseArrows`: whether to try and parse arrows in the content body. Defaults to `true`.
     - `enableInHtmlEmbed`: whether to try and parse Obsidian flavoured markdown in raw HTML. Defaults to `false`
     - `enableYouTubeEmbed`: whether to enable embedded YouTube videos using external image Markdown syntax. Defaults to `false`
 - Link resolution behaviour:

quartz/plugins/transformers/ofm.ts

@@ -23,6 +23,7 @@ export interface Options {
   callouts: boolean
   mermaid: boolean
   parseTags: boolean
+  parseArrows: boolean
   parseBlockReferences: boolean
   enableInHtmlEmbed: boolean
   enableYouTubeEmbed: boolean
@@ -36,6 +37,7 @@ const defaultOptions: Options = {
   callouts: true,
   mermaid: true,
   parseTags: true,
+  parseArrows: true,
   parseBlockReferences: true,
   enableInHtmlEmbed: false,
   enableYouTubeEmbed: true,
@@ -111,6 +113,8 @@ function canonicalizeCallout(calloutName: string): keyof typeof callouts {
 
 export const externalLinkRegex = /^https?:\/\//i
 
+export const arrowRegex = new RegExp(/-{1,2}>/, "g")
+
 // !?               -> optional embedding
 // \[\[             -> open brace
 // ([^\[\]\|\#]+)   -> one or more non-special characters ([,],|, or #) (name)
@@ -294,6 +298,18 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
             ])
           }
 
+          if (opts.parseArrows) {
+            replacements.push([
+              arrowRegex,
+              (_value: string, ..._capture: string[]) => {
+                return {
+                  type: "html",
+                  value: `<span>&#10230;</span>`,
+                }
+              },
+            ])
+          }
+
           if (opts.parseTags) {
             replacements.push([
               tagRegex,