HTML split regex

Benchmark created on

Setup

const testString = `<strong>title</strong>
einen Farbabstand von Delta E<1 kalibriert und zeigt eine unglaublich realitätsgetreue Darstellung Ihrer Werke.`

Test runner

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Testing in
TestOps/sec
old regex
const regex = /(<\/?[a-z0-3]+(?:\s[^">]*|"[^"]*")*>)/i

testString.split(regex)
ready
limit length (jan)
const regex = /(<\/?[a-z0-3]+(?:|\s*|(?:\s[^"=>]+=\s*"[^"]*"|\s[^"=>]+){0,10})>)/i

testString.split(regex)
ready
more limits & preprocess
// the longest tag is 5 characters (tbody), so we can limit that
// to avoid asterisk on whitespace, we can replace all concecutive whitespace with one single space, and then use ? instead.
const regex = /(<\/?[a-z0-3]{,5}(?:|\s?|(?:\s[^"=>]+=\s?"[^"]*"|\s[^"=>]+){,10})>)/i

testString
// replace all concecutive spaces with one
.replace(/\ +/g, " ")
.split(regex)
ready

Revisions

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