Birthday Calculation Post: 302272900

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Top Forums Shell Programming and Scripting Birthday Calculation Post 302272900 by reborg on Thursday 1st of January 2009 06:57:29 PM

01-01-2009

Administrator Emeritus

Quote:

Originally Posted by cfajohnson

[indent]
Please reread the section of the POSIX specification that was posted. It says that a POSIX shell may implement [[, but it is not required to. Therefore there is no guarantee that a POSIX shell will support it, and indeed there are POSIX-compliant shells that do not support it.

This is correct, POSIX does not require the implementation of [[ ]]

The only required reserved words are:

Code:

!
{
}
case
do
done
elif
else
esac
fi
for
if
in
then
until
while

There is a white paper on the Open Group website which states:

Quote:

The four words: function, select, [[ and ]] are reserved and cannot be used where a reserved word would be recognised, such as a command name.

However this is at odds with the wording of the actual specification.

reborg

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LEARN ABOUT DEBIAN

sql::reservedwords::mysql

SQL::ReservedWords::MySQL(3pm)				User Contributed Perl Documentation			    SQL::ReservedWords::MySQL(3pm)

NAME

       SQL::ReservedWords::MySQL - Reserved SQL words by MySQL

SYNOPSIS

	  if ( SQL::ReservedWords::MySQL->is_reserved( $word ) ) {
	      print "$word is a reserved MySQL word!";
	  }

DESCRIPTION

       Determine if words are reserved by MySQL.

METHODS

       is_reserved( $word )
	   Returns a boolean indicating if $word is reserved by either MySQL 3.2, 4.0, 4.1, 5.0 or 5.1.

       is_reserved_by_mysql3( $word )
	   Returns a boolean indicating if $word is reserved by MySQL 3.2.

       is_reserved_by_mysql4( $word )
	   Returns a boolean indicating if $word is reserved by either MySQL 4.0 or 4.1.

       is_reserved_by_mysql5( $word )
	   Returns a boolean indicating if $word is reserved by either MySQL 5.0 or 5.1.

       reserved_by( $word )
	   Returns a list with MySQL versions that reserves $word.

       words
	   Returns a list with all reserved words.

EXPORTS

       Nothing by default. Following subroutines can be exported:

       is_reserved
       is_reserved_by_mysql3
       is_reserved_by_mysql4
       is_reserved_by_mysql5
       reserved_by
       words

SEE ALSO

       SQL::ReservedWords

       <http://dev.mysql.com/doc/>

AUTHOR

       Christian Hansen "chansen@cpan.org"

COPYRIGHT

       This program is free software, you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.8.8							    2008-03-28					    SQL::ReservedWords::MySQL(3pm)