murl

murl is fast url pattern matching and replacing. It's avaiable through npm:

npm install murl

What?

murl exposes a single function that accepts a pattern

var murl = require('murl')
var pattern = murl('/{hello}')

If you pass a string to the pattern murl will try and match it

pattern('/world') // -> {hello:'world'}

If you pass an object it will replace into the pattern

pattern({hello:'world'}) // -> '/world'

Patterns

You can use ? to specify a group as optional

// matches both '/a' and '/a/b'
murl('/{hello}/{world}?')

Per default the {} groups matches until the next character or /.

// matches '/a' but not '/a/b'
murl('/{hello}')

// matches '/200x200'
murl('/{wid}x{hei}')

Use * to match anything

// matches '/a', '/a/b/c' and so on
murl('/*') 

Strict mode

Per default murl will disregard trailing / from the input string. Pass {strict:true} to disable this.

var pattern = murl('/{hello}', {strict:true});

console.log(pattern('/world/')); // returns null
console.log(pattern('/world'))   // return {hello:'world'}

License

MIT