<div align="center">
# `link`
🔗 Parse, shorten and format links.
[](http://codecov.io/github/dwyl/auth?branch=main)
[](https://hex.pm/packages/link)
[](https://hexdocs.pm/link/api-reference.html)
[](https://libraries.io/hex/link)
[](https://github.com/dwyl/link/issues)
[](http://hits.dwyl.com/dwyl/link)
</div>
# Why? 🤷♀️
We didn't find a link parsing library
that did _exactly_ what we needed
so we wrote one.
# What?
A micro library for parsing and formatting links
for use in our
[`App`](https://github.com/dwyl/app)
(currently in the
[`MVP`](https://github.com/dwyl/mvp/issues/141)
)
> **Note**: the code is _deliberately_ "basic".
> not at all "fancy"
> that is intentional so that it's _understandable_
> by a _complete_ beginner to `Elixir`. 🔰
> Simple `code` is _maintainable_ and _extensible_
> without having to waste time Googling to figure it out.
> That said, if you want to help refactoring for performance,
> please
> [open an issue](https://github.com/dwyl/link/issues).
# Who? 👤
The `link` library was created _for us by us_,
the `people` building & using the `@dwyl App`.
Ref:
[mvp#141](https://github.com/dwyl/mvp/issues/141)
<br />
We don't expect this to be used by anyone `else`
because it's _probably_ too specific to _our_ use case.
But if you need to parse links (`URLs`) in your project
`link` can help you!
Checkout the
[`API Reference`](https://hexdocs.pm/link/api-reference.html).
## Feedback 💬
_Any_ feedback is very welcome.
If you need a _specific_ feature,
please open an
[issue](https://github.com/dwyl/link/issues)
<br />
# How? 👩💻
Use this package in your `Elixir` / `Phoenix` App!
## Installation ⬇️
Add `link` to your list of dependencies
in your `mix.exs` file:
```elixir
def deps do
[
{:link, "~> 1.0.4"}
]
end
```
Complete Docs:
[hexdocs.pm/link](https://hexdocs.pm/link/Link.html#content)
## Usage Examples 🔗
Here are a few examples we use in our `MVP`:
```elixir
# Compact a GitHub issue URL so it doesn't waste screen space:
Link.compact("https://github.com/dwyl/mvp/issues/141")
> "dwyl/mvp#141"
# Strip the #issuecomment... from a GitHub issue URL:
Link.compact("https://github.com/dwyl/mvp/issues/141#issuecomment-1636209664")
> "dwyl/mvp#141"
# Find all RFC 3986 URLs in a String or block of text:
Link.find("My text with links http://goo.gl/3co4ae and https://git.io/top and www.dwyl.com etc.")
> ["http://goo.gl/3co4ae", "https://git.io/top", "www.dwyl.com"]
# Shorten the link using Linky (interface TBD)
Link.shorten(conn, "https://github.com/dwyl/mvp/issues/141")
> "dwy.is/mvp-141"
# Confirm if a Link (URL) is valid
Link.valid?("example")
> false
Link.valid?("https://example.com")
> true
# Find all instances of a URL in a block of text
# and replaces them with the "compact" version.
md = "# Hello World! https://github.com/dwyl/mvp/issues/141#issuecomment-1657954420 and https://mvp.fly.dev/"
Link.find_replace_compact(md)
"# Hello World! [dwyl/mvp#141](https://github.com/dwyl/mvp/issues/141#issuecomment-1657954420) and [mvp.fly.dev](https://mvp.fly.dev/)"
```
# Contributing 🙏
The easiest way to contribute
is to help us extend the
[`test/sample_urls.csv`]()
file with more valid and _invalid_ URLs. 📝
# Need _More_? 🙌
If you need a _specific_ function,
please
[open an issue](https://github.com/dwyl/link/issues)
to discuss.
# Research 🔍
If you're curious about URL RegEx, read:
[mathiasbynens.be/demo/url-regex](https://mathiasbynens.be/demo/url-regex)
According to
[jasontucker.blog/8945/what-is-the-longest-tld](https://jasontucker.blog/8945/what-is-the-longest-tld-you-can-get-for-a-domain-name)
The longest TLD you can get in 2023 is `cancerresearch`.
Someone thought it was a good idea
to have `labname.cancerresearch` as their domain ...
a 14-letter TLD ... 🙄
But there are other 13-letter TLDs such as `INTERNATIONAL` ...
