astro-loader-obsidian/obsidian/utils/slugify.ts

Use your Obsidian Vault in Astro projects

import { slug as githubSlug } from "github-slugger";
import path from "node:path";

const normalizeEntry = (text: string) => {
  return (
    text
      .normalize("NFKD")
      // Remove diacritics and combining marks
      // biome-ignore lint/suspicious/noMisleadingCharacterClass: <explanation>
      .replace(/[\u0300-\u036f]/g, "")
      // Replace subscript numbers with regular numbers
      .replace(/₀/g, "0")
      .replace(/₁/g, "1")
      .replace(/₂/g, "2")
      .replace(/₃/g, "3")
      .replace(/₄/g, "4")
      .replace(/₅/g, "5")
      .replace(/₆/g, "6")
      .replace(/₇/g, "7")
      .replace(/₈/g, "8")
      .replace(/₉/g, "9")
      // Replace special characters with their ASCII equivalents
      .replace(/[ʰ]/g, "h")
      .replace(/[ʷ]/g, "w")
      .replace(/[éē]/g, "e")
      .replace(/[óō]/g, "o")
      .replace(/[íī]/g, "i")
      .replace(/[úū]/g, "u")
      .replace(/[áā]/g, "a")
      .replace(/[ḗ]/g, "e")
      .replace(/[*]/g, "")
  );
};

export function slugify(str: string, includeFileExt = false) {
  const extname = path.extname(str);
  const withoutFileExt = str.replace(new RegExp(`${extname}\$`), "");
  const rawSlugSegments = withoutFileExt.split(path.sep);

  const slug = rawSlugSegments
    // Slugify each route segment to handle capitalization and spaces.
    // Note: using `slug` instead of `new Slugger()` means no slug deduping.
    .map((segment) => githubSlug(normalizeEntry(segment)))
    .join("/")
    .replace(/\/index$/, "");

  return includeFileExt ? `${slug}${extname}` : slug;
}