DavidSzczesniak
4/6/2018 - 4:37 PM

Unicode Properties

Instead of matching on a particular character, you can match a type of character. Each character has a property, they can all be found in the perluniprops documentation.

unicode_props.pl
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\!h # To match a particular property, you put the name in \p{PROPERTY}

# Example - to match any sort of space, use the 'Space' property:

if (/\p{Space}/) {
  print "The string has some whitespace.\n";
}

# The above is slightly more expansive than \s as it matches more properties, like NEXT LINE or LINE TABULATION (vertical line).

# Example 3 - more specific properties
# Match two hex digits next to each other:

if (/\p{AHex}\p{AHex}/) {
  print "The string has a pair of hex digits.\n";
}

\!h Negate any property with an uppercase p:
  
if (/\P{Space}/) { # not space
  print "The string has one or more non-whitespace characters.\n";
}