tcl regexp名称验证

Question

I need to validate a name in tcl, it can be:

Letters (upper and lower case)

Numbers

Any of these symbols : "_" underscore "-" dash "/" slash

Answer 1

我会用：

regexp {^[\w/-]+$} $string

Answer 2

While the other answers can solve the problem, here an answer how you could write it yourself:

• The string should only contain the defined characters:
  The entire string have to be matched, so add constraints: ^ at the beginning (marks the beginning of the string) and $ at the end.

• The string should contain of one or more of some characters:
  [az]+ means one or more characters in the range (inclusive) from a to z.

• Add some more possible characters: ^[a-zA-Z_0-9/-]+$
  (Note that - is at the end, otherwise it defines a range)

And voila. Your regexp.

Answer 3

/^[\w-\/]+$/

\\w is for letters, numbers and underscore. Source