CODEWITHSUNDEEP
javascriptregexsplit
nmussy
nmussy

Reputation: 1

Multiple conditions regex JavaScript split

I'd like to split a string if:

For example:

'deux-cent-quatre-vingt-trois'.split(/**/);
> ['deux', 'cent', 'quatre-vingt', 'trois' ]

I've had a few tries and failures, for example:

'deux-cent-quatre-vingt-dix-trois'
          .split(/^(?![quatre|soixante]-[dix|vingt])(\w*)-(\w*)/);
> [ '', 'deux', 'cent', '-quatre-vingt-trois' ]

or: 

'deux-cent-quatre-vingt-dix-trois'.split(/(?!quatre|soixante)-(?!vingt|dix)/);
> [ 'deux' 'cent', 'quatre-vingt', 'trois' ]

which works, but this does not:

'cent-vingt'.split(/(?!quatre|soixante)-(?!vingt|dix)/);
> [ 'cent-vingt' ]

I know using a matcher or a find would be so easy, but it would be great to do it in a single split...

Upvotes: 0

Views: 581

Answers (1)

Casimir et Hippolyte
Casimir et Hippolyte

Reputation: 89557

You can do it like this:

var text = "deux-cent-quatre-vingt-trois";

console.log(text.split(/(?:^|-)(quatre-vingt(?:-dix|s$)?|soixante-dix|[^-]+)/));

The idea is to add a capturing group whose content is added to the split list.

The capturing group contains at first particular cases and after the most general, described with [^-]+ (all that is not a -)

Notice: since quatre-vingt is written with a s when it is not followed by a number, i added s$ as a possibility.

Upvotes: 1

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