Is there a way to split a string based on several separators while keeping some of the separators in the splitted array?
So if I have the string "This is a-weird string,right?" I would like to get
["This", "is", "a", "-", "weird", "string", ",", "right", "?"]
I have tried using string.split(/([^a-zA-Z])/g), but I don't want to keep the whitespace. This guide seems like being something I can use, but my understanding of regex is not good enough to know how to mix those two.
You can use
console.log("This is a-weird string,right?".match(/[^\W_]+|[^\w\s]|_/g))The regex matches:
[^\W_]+ - one or more alphanumeric chars| - or[^\w\s] - any char other than word and whitespace| - or_ - an underscore.See the regex demo.
A fully Unicode aware regex will be
console.log("This is ą-węird string,right？".match(/[\p{L}\p{M}\p{N}]+|[\p{P}\p{S}]/gu))Here,
[\p{L}\p{M}\p{N}]+ - one or more Unicode letters, diacritics or digits| - or[\p{P}\p{S}] - a single punctuation proper or symbol char.See this regex demo.
Here is a regex splitting approach. We can try splitting on the following pattern:
\s+|(?<=\w)(?=\W)|(?<=\W)(?=\w)
Code snippet:
var input = "This is a-weird string,right?";
var parts = input.split(/\s+|(?<=\w)(?=\W)|(?<=\W)(?=\w)/);
console.log(parts);Here is an explanation of the regex pattern used, which says to split on:
\s+ whitespace
| OR
(?<=\w)(?=\W) the boundary between a word character preceding and non word
character following
| OR
(?<=\W)(?=\w) the boundary between a non word character preceding and word
character following
Try like this:
const str = "This is a-weird string,right?";
var arr = str.replace(/(\S)([\,\-])/g, "$1 $2").replace(/([\,\-])(\S)/g, "$1 $2").split(" ");
console.log(arr);You can replace using each delimiter you're interested in so that it has a space on each side, then use that to split and return an array.
, or -, an empty string is created in the array [... "string", ",", "''", "right?"] if the string was "... string, right?".