regex - How to match any non white space character except a particular one?

Question

In Perl S matches any non-whitespace character.

How can I match any non-whitespace character except a backslash ?

Answer 1

You can use a character class:

/[^s\]/

matches anything that is not a whitespace character nor a . Here's another example:

[abc] means "match a, b or c"; [^abc] means "match any character except a, b or c".