Regular expression to match "="
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Bruno Luong
le 21 Sep 2019
Commenté : Bruno Luong
le 21 Sep 2019
In try to find a simple pattern p to match a single '=' but ignore '==' in a string
So I want
regexp('a = b', p)
to return 3
regexp('a == b', p)
to return [].
I try several things and they are all fail on '=='
>> regexp('a == b','=(?!=)')
ans =
4
>> regexp('a == b','={1}')
ans =
3 4
>> regexp('a == b','(?!==)=')
ans =
4
Any suggestion for simple pattern?
0 commentaires
Réponse acceptée
Walter Roberson
le 21 Sep 2019
regexp('a == b = d','(?<!=)=(?!=)')
This looks for = that are not preceded by = and not followed by =
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Logical dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!