Question

I feel lost with the Regex Unicode Properties presented by RegexBuddy, I cannot distinguish between any of the Number properties and the Math symbol property only seems to match + but not -, *, /, ^ for instance.

Is there any documentation / reference with examples on regular expressions Unicode properties?

Answer 1

A list of Unicode properties can be found in http://www.unicode.org/Public/UNIDATA/PropList.txt.

The properties for each character can be found in http://www.unicode.org/Public/UNIDATA/UnicodeData.txt (1.2 MB).

In your case,

• + (PLUS SIGN) is Sm,
• - (HYPHEN-MINUS) is Pd,
• * (ASTERISK) is Po,
• / (SOLIDUS) is also Po, and
• ^ (CIRCUMFLEX ACCENT) is Sk.

You’re better off matching them with [-+*/^].