fix: support hard line breaks (#100)

deno.json

@@ -10,7 +10,7 @@
     "test": "deno test --allow-read --allow-env --allow-write --allow-run --allow-net"
   },
   "fmt": {
-    "exclude": ["./test/fixtures/alerts.md"]
+    "exclude": ["./test/fixtures/alerts.md", "./test/fixtures/lineBreaks.md"]
   },
   "lock": false
 }

mod.ts

@@ -115,6 +115,7 @@ export interface RenderOptions {
   disableHtmlSanitization?: boolean;
   renderer?: Renderer;
   allowedClasses?: { [index: string]: boolean | Array<string | RegExp> };
+  breaks?: boolean;
 }
 
 export function render(markdown: string, opts: RenderOptions = {}): string {
@@ -126,6 +127,7 @@ export function render(markdown: string, opts: RenderOptions = {}): string {
 
   const marked_opts = {
     baseUrl: opts.baseUrl,
+    breaks: opts.breaks ?? false,
     gfm: true,
     mangle: false,
     renderer: opts.renderer ? opts.renderer : new Renderer(opts),

test/fixtures/lineBreaks.html

@@ -0,0 +1 @@
+<p>From fairest creatures we desire increase,<br />That thereby beauty’s rose might never die,<br />But as the riper should by time decrease,<br />His tender heir mught bear his memeory:</p>

test/fixtures/lineBreaks.md

@@ -0,0 +1,4 @@
+From fairest creatures we desire increase,
+That thereby beauty’s rose might never die,
+But as the riper should by time decrease,
+His tender heir mught bear his memeory:

test/test.ts

@@ -300,3 +300,11 @@ Deno.test("footnotes", () => {
   const html = render(markdown);
   assertEquals(html, expected);
 });
+
+Deno.test("hard line breaks", () => {
+  const markdown = Deno.readTextFileSync("./test/fixtures/lineBreaks.md");
+  const expected = Deno.readTextFileSync("./test/fixtures/lineBreaks.html");
+
+  const html = render(markdown, { breaks: true });
+  assertEquals(html, expected);
+});