CSS::DOM::Util - Utility functions for dealing with CSS tokens

Description

       This module provides utility functions for dealing with CSS tokens.

Functions

All functions below that take one argument have a "($)" prototype, so they have the same precedence as
"closedir" and "delete".

escape $string, $chars_to_escape
This escapes any characters in $string that occur in $chars_to_escape, which is interpreted as a
regular expression. The regexp must consume just one character; otherwise you'll find chars missing
from the output. ASCII vertical whitespace (except the vertical tab) is always escaped.

Printable non-alphanumeric ASCII characters and the space character are escaped with a single
backslash. Other characters are encoded in hexadecimal.

"escape" also considers that you might want to include the escaped string in a larger string, so it
appends a space if the escaped string ends with a hexadecimal escape with fewer than six digits.

unescape $string
This turns something like \"H\65llo\" into "Hello" (including quotes).

escape_ident $string
escape_ident $string, $more_chars_to_escape
This escapes $string as a CSS identifier, escaping also any characters matched by
$more_chars_to_escape.

unescape_url $url_token
Returns the URL that the token represents.

escape_str $string
Returns a CSS string token containing $string (within quotes; characters possibly escaped).

unescape_str $string_token
Returns the value that a CSS string token represents.

Name

       CSS::DOM::Util - Utility functions for dealing with CSS tokens

Synopsis

         use CSS::DOM::Util ':all';
         # or:
         use CSS::DOM::Util qw[
           escape unescape
           escape_ident unescape_url
           escape_str unescape_str
         ];