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Manual Reference Pages  -  CSS::DOM::UTIL (3)

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NAME

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

CONTENTS

VERSION

Version 0.16

SYNOPSIS



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



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.

SEE ALSO

CSS::DOM
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perl v5.20.3 CSS::DOM::UTIL (3) 2015-11-29

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