let rx = /(\/MxML\/[a-z0-9\[\]@/]*)/gi;
let s =
'If (/MxML/trades[1]/value== 1 then /MxML/trades[type=2]/value must be /MxML/stream/pre/reference@href';
let m;
let res = [];
while ((m = rx.exec(s))) {
res.push(m[1]);
}
console.log(res);
= is ok. But == or === are not ok.Desired output
[
'/MxML/trades[1]/value',
'/MxML/trades[type=2]/value',
'/MxML/stream/pre/reference@href',
];
My current (incorrect) output
[
'/MxML/trades[1]/value',
'/MxML/trades[type',
'/MxML/stream/pre/reference@href',
];
I can think of a lookaround, but can't figure out how to use it here.
(?<!\=)\=(?!\=)
I've been going through several other examples on Stackoverflow, but they are about avoiding all character repetition and not about avoiding a particular character(=) repetition in conjunction with other valid characters.
Here is a regex which should be compatible in all browsers:
/(\/MxML\/(?:[a-z0-9\[\]@/]|=(?!=))*)/gi
/(\/MxML\/ - your regex(?: - start non-capture group; we need this to implement an "or" operator and not mess up your use of m[1]
[a-z0-9\[\]@/] - your regex of whitelisted chars; notice the asterisk was removed| - or=(?!=) - allow for an equal sign not followed by an equal sign)* - close non-capturing group and capture between zero and infinity instances of what's inside)/gi - your regexlet rx = /(\/MxML\/(?:[a-z0-9\[\]@/]|=(?!=))*)/gi;
let s =
'If (/MxML/trades[1]/value== 1 then /MxML/trades[type=2]/value must be /MxML/stream/pre/reference@href';
let m;
let res = [];
while ((m = rx.exec(s))) {
res.push(m[1]);
}
console.log(res);