Regular expression pattern for range and above 127

Question

I need a regular expression so that it matches the next plus to any ascii above 127 (like 7F hex and above). Below works fine for this range.

string pattern = "[\x00-\x1F]"; 

Answer 1

Try or operator | (Trumpet)

 string pattern = "[\x00-\x1f]|[\x7f-\uffff]"; 

FF hex will be the maximum ASCII value.

Here's the winding for more reference: http://www.mikesdotnetting.com/Article/46/CSharp-Regular-Expressions-Cheat-Sheet

Answer 2

Or:

• Accept characters in both ranges (alternating, [ab]|[xz] ) or;
• Use multiple ranges in a character group ( [a-bx-z] ) or;
• Discard inverted range in character group ( [^cw] )
  • Denial involves a lot of things before c and after w , so it is [required] not the same as the previous ones, but it can be used as an advantage.

The corresponding values ​​of a , b , c , w , x and z left as a [trivial] exercise for the reader.

Happy coding.