From 63a347662ad042803afb2f50bd528db0cd2d5153 Mon Sep 17 00:00:00 2001
From: Chris Arter <chris@arter.dev>
Date: Fri, 8 May 2026 11:33:51 -0400
Subject: [PATCH] feat: port slugify utility with tests
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Port slugify from arter-blog as a pure TypeScript utility with 5 integration tests covering lowercase/hyphen conversion, accent stripping (NFD + Unicode range ̀-ͯ), separator collapsing, special char dropping, and undefined input.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/lib/slugify.ts            |  8 ++++++++
 tests/int/slugify.int.spec.ts | 20 ++++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 src/lib/slugify.ts
 create mode 100644 tests/int/slugify.int.spec.ts

diff --git a/src/lib/slugify.ts b/src/lib/slugify.ts
new file mode 100644
index 0000000..c9fc59f
--- /dev/null
+++ b/src/lib/slugify.ts
@@ -0,0 +1,8 @@
+export function slugify(input?: string): string {
+  if (!input) return ""
+  let slug = input.toLowerCase().trim()
+  slug = slug.normalize("NFD").replace(/[\u0300-\u036f]/g, "")
+  slug = slug.replace(/[^a-z0-9\s-]/g, " ").trim()
+  slug = slug.replace(/[\s-]+/g, "-")
+  return slug
+}
diff --git a/tests/int/slugify.int.spec.ts b/tests/int/slugify.int.spec.ts
new file mode 100644
index 0000000..ca400b0
--- /dev/null
+++ b/tests/int/slugify.int.spec.ts
@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest'
+import { slugify } from '@/lib/slugify'
+
+describe('slugify', () => {
+  it('lowercases and replaces spaces with hyphens', () => {
+    expect(slugify('Hello World')).toBe('hello-world')
+  })
+  it('strips accents', () => {
+    expect(slugify('Café Résumé')).toBe('cafe-resume')
+  })
+  it('collapses multiple separators', () => {
+    expect(slugify('a   b---c')).toBe('a-b-c')
+  })
+  it('drops disallowed characters', () => {
+    expect(slugify("It's awesome!")).toBe('it-s-awesome')
+  })
+  it('returns empty string for undefined input', () => {
+    expect(slugify(undefined)).toBe('')
+  })
+})
-- 
2.51.2