CPAN::HandleConfig(3pm) Perl Programmers Reference Guide CPAN::HandleConfig(3pm)
"CLASS->safe_quote ITEM"
Quotes an item to become safe against spaces in shell interpolation. An item is enclosed in double quotes if:
- the item contains spaces in the middle
- the item does not start with a quote
This happens to avoid shell interpolation problems when whitespace is present in directory names.
This method uses "commands_quote" to determine the correct quote. If "commands_quote" is a space, no quoting will take place.
if it starts and ends with the same quote character: leave it as it is
if it contains no whitespace: leave it as it is
if it contains whitespace, then
if it contains quotes: better leave it as it is
else: quote it with the correct quote type for the box we're on
LICENSE
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.1 2010-04-26 CPAN::HandleConfig(3pm)
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PPI::Token::Quote(3pm) User Contributed Perl Documentation PPI::Token::Quote(3pm)NAME
PPI::Token::Quote - String quote abstract base class
INHERITANCE
PPI::Token::Quote
isa PPI::Token
isa PPI::Element
DESCRIPTION
The "PPI::Token::Quote" class is never instantiated, and simply provides a common abstract base class for the four quote classes. In PPI,
a "quote" is limited to only the quote-like things that themselves directly represent a string. (although this includes double quotes with
interpolated elements inside them).
The subclasses of "PPI::Token::Quote" are:
'' - PPI::Token::Quote::Single
"q{}" - PPI::Token::Quote::Literal
"" - PPI::Token::Quote::Double
"qq{}" - PPI::Token::Quote::Interpolate
The names are hopefully obvious enough not to have to explain what each class is here. See their respective pages for more details.
Please note that although the here-doc does represent a literal string, it is such a nasty piece of work that in PPI it is given the honor
of its own token class (PPI::Token::HereDoc).
METHODS
string
The "string" method is provided by all four ::Quote classes. It won't get you the actual literal Perl value, but it will strip off the
wrapping of the quotes.
# The following all return foo from the ->string method
'foo'
"foo"
q{foo}
qq <foo>
literal
The "literal" method is provided by ::Quote:Literal and ::Quote::Single. This returns the value of the string as Perl sees it: without the
quote marks and with "\" and "'" resolved to "" and "'".
The "literal" method is not implemented by ::Quote::Double or ::Quote::Interpolate yet.
SUPPORT
See the support section in the main module.
AUTHOR
Adam Kennedy <adamk@cpan.org>
COPYRIGHT
Copyright 2001 - 2011 Adam Kennedy.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
perl v5.10.1 2011-02-26 PPI::Token::Quote(3pm)
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