feat: implement between

[aykutkardas]

I am trying to implement the between method.

If you have any suggestions it would be great to hear. @danielroe

Actually, it works now, but I was not able to import between directly. So I had to chain after "exactly".

exactly('').between('c', 'g')

[vercel]

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[what-the-diff]

• Added between input
• Updated internal to support the new input
• Tested that it works as expected in index test file

[didavid61202]

I think we could make this as a creating input helper similar to charIn.

some thoughts:

we could extends the original charIn helper to

export const charIn = <T extends string,From extends string, To extends string, Sets extends [from: From,to:To][]>(chars: T,...sets: Sets) =>
  createInput(`[${chars.replace(/[-\\^\]]/g, '\\$&')}${sets.map(set=>`${set[0]}-${set[1]}`).join()}]`) as Input<`[${EscapeChar<T>}${Join<{[k in keyof Sets]: `${Sets[k][0]}-${Sets[k][1]}`},'',''>}]`>

if we do so, we should also update charNotIn too.

then maybe add some helper functions for convenience:

export const charSet = <From extends string,To extends string>(from: From, to: To) =>
charIn('',[from,to])

export const charSets = <From extends string, To extends string, Sets extends [from: From,to: To][]>(...sets:Sets) =>
charIn('',...sets)

just some ideas, still need to make sure naming is intuitive. And maybe use function overloading if needed?