Help-Site Computer Manuals
Software
Hardware
Programming
Networking
  Algorithms & Data Structures   Programming Languages   Revision Control
  Protocols
  Cameras   Computers   Displays   Keyboards & Mice   Motherboards   Networking   Printers & Scanners   Storage
  Windows   Linux & Unix   Mac

MathML::Entities::Approximate
Returns approximated ASCII characters for XHTML+MathML Named Entities

MathML::Entities::Approximate - Returns approximated ASCII characters for XHTML+MathML Named Entities



NAME


  MathML::Entities::Approximate - Returns approximated ASCII characters for XHTML+MathML Named Entities


SYNOPSIS

A subclass of MathML::Entities that supplies ASCII-approximate characters for XHTML+MathML Named Entities.


  use lib (getpwnam('sdadmin'))[7] . '/perlib';

  use MathML::Entities::Approximate;

  $html    = '<strong>avanc&eacute;e</strong>';

  # convert to HTML character reference. Standard MathML::Entities

  $numeric = name2numbered($html)    # <strong>avanc&#x000E9;e</strong>

  # convert to standard ASCII

  $ascii   = name2approximated($html) # <strong>avancee</strong>

  # Muck around with the lookup table...

  MathML::Entities::Approximate::getSet(aacute);    # returns 'a'

  MathML::Entities::Approximate::getSet(aacute, z); # returns 'z'

  MathML::Entities::Approximate::getSet(aacute);    # now returns 'z'


DESCRIPTION

MathML::Entities::Approximate is a content conversion filter for named XHTML+MathML entities. There are over two thousand named entities in the XHTML+MathML DTD, however only a fraction of them are variants on standard ASCII characters.

A string is parsed and every Named Entity is converted to a reasonable ASCII (7-bit ASCII set), or removed from the string.


FUNCTIONS

There two functions, one of which is exported by default.

  • name2approximated
  • (Exported by default)

    XHTML+MathML named entities in the argument of name2approximated() are replaced by the corresponding 7-bit ASCII character. Any entitiy which cannot be approximated is removed.

  • getSet
  • (Never Exported)

    This method is provided to allow users to extend the internal %APPROXIMATES lookup table: either alter an existing entry [for the life of the process] or add new entities.

    Of course, for a large update to the lookup table, you have the option of:

    
      %MathML::Entities::Approximate:APPROXIMATES = (
    
        %MathML::Entities::Approximate:APPROXIMATES,
    
        'foobar' => 'fb',         # LOWERCASE WELL SCUNNERED
    
        'FooBar' => 'FB',         # UPPERCASE WELL SCUNNERED
    
        'landrover' => 'landie',  # LOWERCASE PROPER MOTOR
    
        'LandRover' => 'Landie'   # UPPERCASE PROPER MOTOR
    
      );


AUTHOR

Ian Stuart <Ian.Stuart@ed.ac.uk>


COPYRIGHT

Copyright (c) 2005 Ian Stuart. All rights reserved.

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


SEE ALSO

the MathML::Entities manpage, the HTML::Entities manpage, the HTML::Entities::Numbered manpage, http://www.w3.org/TR/REC-html40/sgml/entities.html, http://www.w3.org/Math/characters/

Programminig
Wy
Wy
yW
Wy
Programming
Wy
Wy
Wy
Wy