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Text::Smart.3pm

NAME

Text::Smart - Processor for 'smart text' markup

SYNOPSIS

   use Text::Smart;
 
   my $markup = Text::Smart->new(entities => \%entities);
 
   my $text = $markup->process($text, %opts);
 
   my $text = $markup->process_divider($text);
   my $text = $markup->process_itemize($text, %opts);
   my $text = $markup->process_enumeration($text, %opts);
   my $text = $markup->process_paragraph($text, %opts);
   my $text = $markup->process_smart($text, %opts);
 
   # Virtual methods for subclasses to implement
   my $text = $markup->generate_divider();
   my $text = $markup->generate_itemize(@items);
   my $text = $markup->generate_enumeration(@items);
   my $text = $markup->generate_paragraph($text);
   my $text = $markup->generate_bold($text);
   my $text = $markup->generate_italic($text)
   my $text = $markup->generate_monospace($text);
   my $text = $markup->generate_link($text, $url);
   my $text = $markup->escape($text);
 
 

DESCRIPTION

This module provides an interface for converting smarttext markup into an arbitrary text based markup language, such as HTML, Latex, or Troff.

SMARTTEXT MARKUP

Smarttext markup can be split into two categories, block level and inline. Block level elements are separated by one or more completely blank lines. Inline elements encompass one or more words within a block. Valid inline markup is:

   *foo* - Puts the word 'foo' in bold face
   /foo/ - Puts the word 'foo' in italic face
   =foo= - Puts the word 'foo' in fixed width face
   @foo(bar) - Makes the word 'foo' a link to the url 'bar'
 
 

There are six pre-defined entities

   (C) - Insert copyright symbol
   (TM) - Insert trademark symbol
   (R) - Insert registered symbol
 
   1/2 - insert a fraction
   1/4 - insert a fraction
   3/4 - insert a fraction
 
 

There are six levels of heading available

   &title(Main document heading)
   &subtitle(Secondary document heading)
   &section(Section heading)
   &subsection(Secondary section heading)
   &subsubsection(Tertiary section heading)
   &paragraph(Paragraph heading)
 
 

There are three special blocks. Horizontal dividing bars can be formed using

   ---
   ___
 
 

Numbered lists using

  + item one
  + item two
  + item three
 
 

Bulleted lists using

  * item one
  * item two
  * item three
 
 

Anything not fitting these forms is treated as a standard paragraph.

OPTIONS

All the "process_XXX" family of methods accept a number of options which control which pieces of markup are permitted in the text. The following options are recognised:

   no_links
   no_symbols
   no_lists
   no_rules
   no_inline
 
 

To use this options pass them as a named parameter:

   $markup->process($text, no_links => 1, no_lists => 1);
 
 

SUBCLASSING

This module provides the basic parsing routines and framework for outputting text, however, it must be subclassed to generate the markup language specific tags. The primary subclass is Text::Smart::HTML which is used to generate HTML markup.

METHODS

The 'generate_XXX' methods are virtual and need to be implemented by subclasses.

my $proc = Text::Smart->new();

Create a new smart text processor. This constructor would not normally be called by application code, since this module must be sub-classed to be useful. The primary subclass is for generating HTML, Text::Smart::HTML.

my $markup = $proc->process($text)

Converts a piece of smart text, passed in as the parameter into the target markup language of this processor. The markedup text is returned

my $markup = $proc->generate_divider()

Called to generate a horizontal section divider. The generated text must be returned in string format. This method must be implemented by subclasses.

my $markup = $proc->generate_itemize(@items)

Called to generate an itemized list of bullet points. The (already marked up) text for each item is passed as a list of parameters. The generated text must be returned in string format. This method must be implemented by subclasses.

my $markup = $proc->generate_enumeration(@items)

Called to generate an itemized list of numbered points. The (already marked up) text for each item is passed as a list of parameters. The generated text must be returned in string format. This method must be implemented by subclasses.

my $markup = $proc->generate_paragraph($text)

Called to generate a paragraph of text. The (already marked up) text for the body of the paragraph is passed in as the only parameter. The generated text must be returned in string format. This method must be implemented by subclasses.

my $markup = $proc->generate_bold($text)

Called to generate bold text. The plain text is passed in as the parameter, and the marked up text should be returned in string format. This method must be implemented by subclasses.

my $markup = $proc->generate_italic($text)

Called to generate italic text. The plain text is passed in as the parameter, and the marked up text should be returned in string format. This method must be implemented by subclasses.

my $markup = $proc->generate_monospace($text)

Called to generate fixed-width text. The plain text is passed in as the parameter, and the marked up text should be returned in string format. This method must be implemented by subclasses.

my $markup = $proc->generate_link($url, $text)

Called to generate a hyperlink. The destination of the link is the first parameter, and the text being linked is the second parameter. The marked up text must be returned in string format. This method must be implemented by subclasses.

my $markup = $proc->generate_entity($name);

Called to generated a special named entity. There are 6 named entities which need to be supported:

fraction12

The fraction 1/2

fraction14

The fraction 1/4

fraction 34

The fraction 3/4

copyright

The copyright symbol

trademark

The trademark symbol

registered

The rights registered symbol

The markup corresponding to the specified entity must be returned in string format.

my $text = $proc->escape($text)

Called to escape any characters which have special meaning in the destination markup language. For example, in HTML, this would escape angle brackets and the ampersand symbol. The escaped text must be returned in string format.

AUTHORS

Daniel Berrange <dan@berrange.com>

COPYRIGHT

Copyright (C) 2000-2004 Daniel P. Berrange <dan@berrange.com>

SEE ALSO

perl(1)