fix: do not prefix anchor links #11

Author: metonym

src/preprocessReadme.js

@@ -62,7 +62,7 @@ export function preprocessReadme(opts) {
           if (opts.prefixUrl && node.type === "Attribute" && node.name === "href") {
             const value = node.value[0];
 
-            if (value && isRelativeUrl(value.raw)) {
+            if (value && !value.raw.startsWith("#") && isRelativeUrl(value.raw)) {
               const relative_path = new URL(value.raw, opts.prefixUrl).href;
               result = result.replace(value.raw, relative_path);
               cursor += relative_path.length - value.raw.length;

test/README.md

@@ -2,6 +2,8 @@
 
 Relative URL: [Readme](./) 
 
+Relative URL (anchor): [Usage](#usage)
+
 Absolute URL: [svelte-readme](https://github.com/metonym/svelte-readme)
 
 Check out my cool component library.