I\'m looking for a regex pattern to match all characters that are found on a U.S. keyboard. right now, I match only on letters and numbers and white space, so it looks like<
^[\x00-\x7F]*$
for 0-n ASCII characters
^[\x20-\x7F]*$
would be more accurate, as mentioned by Nick D. in the comment: from SPACE to DEL.
As detailed in regular-expressions.info:
\xFF where FF are 2 hexadecimal digits
Matches the character with the specified ASCII/ANSI value, which depends on the code page used. Can be used in character classes
[\x20-\x7F]
is a character class specifying here a range of characters.