regex - How to write reg expression which uses some special characters? -

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i write reg expression should not use special symbols other (/, \, -, [, ], <, >, $, ~, !, @, #, :, %). try:

  if { [regexp {^[\w/-\[\]<>$#~!@#%:\\\/]+$} $name] != 1 } {         puts "handle error";   }

but not work.

for example such name io1?? it's not treated error

could help?

you have escape - in character class or put @ beginning - otherwise it's interpreted range:

regexp {^[\w/\-\[\]<>$#~!@#%:\\\/]+$} $name

or

regexp {^[-\w/\[\]<>$#~!@#%:\\\/]+$} $name

the range between / , \[ seems contain ?.


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