I am trying to split sentences with some exceptions to ignore cases like Mr. And Mrs. Etc... And add them to an array.

This worked in vanilla JS for me

/(?<!\sMrs)(?<!\sMr)(?<!\sSr)(\.\s)|(!\s)|(\?\s)/gm

Unfortunately React Native doesn't support the negative lookbehind.

Is there another way I can achieve the same result?

CodePudding user response：

I ended up doing this:

let str = "Hello Mr. Jackson. How are you doing today?"

let sentences = str
    .replace(
      /(!”\s|\?”\s|\.”|!\)]s|\.\)\s|\?\)|!"\s|\."\s|\.\s|!\s|\?\s|[.?!])\s*/g,
      "$1|"
    )
    .split("|")

let arr = []

for (let i = 0; i < sentences.length; i  ) {
  if (sentences[i].includes("Mr.") | sentences[i].includes("Mrs.")) {
    arr.push(sentences[i]   " "   sentences[i 1])
    i  
  } else {
    arr.push(sentences[i])
  }
}

console.log(arr)

If anyone has a more efficient solution, let me know!

CodePudding user response：

You can create exceptions in the following way:

let str = "Hello Mr. Jackson. How are you doing today?"
let sentences = str.match(/(?:\b(?:Mrs?|Sr)\.\s|[^!?.]) [!?.]?/g).map(x => x.trim())
console.log(sentences)

The regex (see its online demo) matches

• (?:\b(?:Mrs?|Sr)\.\s|[^!?.]) - one or more occurrences of
  • \b(?:Mrs?|Sr)\.\s - Mr, Mrs or Sr as whole words followed with . and a whitespace char
  • | - or
  • [^!?.] - any single char other than ?, ! and .
• [!?.]? - an optional !, ? or ..