I'm using the below code for detecting the usage of operators along with non-english characters.
/**
* Prepares a unicode aware RegEx pattern for operators
*
* \b (word boundary - wb) can be written as (?:(?<=^)(?=\w)|(?<=\w)(?=$)|(?<=\W)(?=\w)|(?<=\w)(?=\W))
* \B (non-word boundary - nwb) can be written as (?:(?<=^)(?=\W)|(?<=\W)(?=$)|(?<=\W)(?=\W)|(?<=\w)(?=\w))
* Unicode-aware \w pattern is [\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}]
*
*/
const w = String.raw`[\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}]`;
const nw = String.raw`[^\p{Alphabetic}\p{Mark}\p{Decimal_Number}\p{Connector_Punctuation}\p{Join_Control}]`;
const uwb = String.raw`(?:(?<=^)(?=${w})|(?<=${w})(?=$)|(?<=${nw})(?=${w})|(?<=${w})(?=${nw}))`;
const unwb = String.raw`(?:(?<=^)(?=${nw})|(?<=${nw})(?=$)|(?<=${nw})(?=${nw})|(?<=${w})(?=${w}))`;
const OPERATOR_REGEX = new RegExp(
String.raw`(?!${unwb}"[^"“”]*)${uwb}(and|or|not|exclude)(?=.*\s)${uwb}(?![^"“”]*"${unwb})`,
'giu'
);
const query1 = '(Java or "化粧" or 化粧品)';
const query2 = '(Java or 化粧 or 化粧品)';
console.log(query1.split(OPERATOR_REGEX));
console.log(query2.split(OPERATOR_REGEX));
This is a impressive approach answered here but Safari browser doesn't support lookbehind regex patterns (Lookbehind in JS regular expressions).
What can be a good approach to make this logic work for Safari browser?
