memorium/lib/string.ts

export function formatDate(date: Date): string {
  const options = { year: "numeric", month: "long", day: "numeric" } as const;
  return new Intl.DateTimeFormat("en-US", options).format(date);
}

export function safeFileName(inputString: string): string {
  // Convert the string to lowercase
  let fileName = inputString.toLowerCase();

  // Replace spaces with underscores
  fileName = fileName.replace(/ /g, "_");

  // Remove characters that are not safe for file names
  fileName = fileName.replace(/[^\w.-]/g, "");

  return fileName;
}

export function extractHashTags(inputString: string) {
  const hashtags = [];

  for (
    const [hashtag] of inputString.matchAll(/(?<!\()\B(\#[a-zA-Z\-]+\b)(?!;)/g)
  ) {
    hashtags.push(hashtag.replace(/\#/g, ""));
  }

  return hashtags;
}