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Manual Reference Pages  -  HTML::FRACTION (3)

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NAME

HTML::Fraction - Encode fractions as HTML entities

CONTENTS

SYNOPSIS



  my $fraction = HTML::Fraction->new;
  print $fraction->tweak($html);



DESCRIPTION

The HTML::Fraction encodes fractions as HTML entities. Some very common fractions have HTML entities (eg 1/2 is ½;). Additionally, common vulgar fractions have Unicode characters (eg 1/5 is ). This module takes a string and encodes fractions as entities: this means that it will look pretty in the browser.

Fractions that are supported:



  1/4, 1/2, 3/4, 0/3, 1/3, 2/3, 1/5, 2/5, 3/5,
  4/5, 1/6, 5/6, 1/7, 1/8, 3/8, 5/8, 7/8, 1/9, 1/10



Fractions may be in the string in the form numerator slash denominator (1/5) or in decimal form (0.5). Numbers must be equal to the fraction to two decimal places. This module supports converting whole and fractional decimal numbers (e.g. 2.25.)

For sanity the decimal 0 will not be turned into the unicode for 0/3

CONSTRUCTOR

    new

The constructor takes no arguments:



  my $fraction = HTML::Fraction->new;



METHODS

    tweak

Encode the fractions in the HTML as HTML entities:



  print $fraction->tweak($html);



    tweak_frac

Encode the fractions that are in the form 1/3 or 5/6 in the HTML as HTML entities, but not decimal fractions of the form 0.5.

    tweak_dec

Encode the fractions that are in the form 0.5 or 0.5 in the HTML as HTML entities, but not fractions of the form 1/2 or 1/3.

AUTHOR

Leon Brocard, <acme@astray.com>. Mark Fowler <mark@twoshortplanks> added some code, and probably some bugs.

COPYRIGHT

Copyright (C) 2005, 2012 Leon Brocard

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

BUGS

We don’t perform normalisation of the denominator and numerator so 4/6 is not converted like 2/3 is. This is intentional.

2.25 doesn’t render to the same thing as 2 1/2 (the latter has a space between the digit 2 and the fraction.)

1/7 doesn’t represent as a reoccuring pattern of digits in decimal therefore we don’t check that digits after 0.14285714 are correct, and assume that they are.

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perl v5.20.3 HTML::FRACTION (3) 2012-01-20

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