QString split also splitting at '.'

Asked Feb 22 '19 at 20:25

Active Feb 22 '19 at 20:25

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I have a textField in my calculator app and I am splitting the whole input in the end to separate numbers and operators. For getting numbers I am using this:

QStringList nums = displayVal.split(QRegularExpression("[\+\-\/\*]"));

The problem is that it is also splitting at "." for some reason. I am not that familiar with Regular expressions so it the fault is probably in my regular expression. So what should I do to split at "+", "-", "*" and "/" only?

Example text: 4+2/3.5

Should get [4, 2, 3.5]. Of course the values will be in QString.

asked Feb 22 '19 at 20:25

Ayush Singh

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Use `QRegularExpression("[-+/*]")` – Wiktor Stribiżew Feb 22 '19 at 20:27
Thanks, it worked. – Ayush Singh Feb 22 '19 at 20:29
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Yes, the hyphen must be at the start/end of the character class, and if you plan to escape it, do it with double backslashes in the regular string literal (one is enough in raw string literals) – Wiktor Stribiżew Feb 22 '19 at 20:31

QString split also splitting at '.'

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