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Syntax-Highlight-Engine-Simple-0.09
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/ Syntax::Highlight::Engine::Simple

NAME

Syntax::Highlight::Engine::Simple - Simple Syntax Highlight Engine

VERSION

This document describes Syntax::Highlight::Engine::Simple

SYNOPSIS

use Syntax::Highlight::Engine::Simple;

# Constractor
$highlight = Syntax::Highlight::Engine::Simple->new(%hash);

# Parameter configuration
$highlight->setParams(%hash);

# Syntax definision and addition
$highlight->setSyntax(%hash);
$highlight->appendSyntax(%hash);

# Perse
$highlight->doFile(%hash);
$highlight->doStr(%hash);

# Utilities
$highlight->array2regexp(%hash);
$highlight->getClassNames(%hash);

DESCRIPTION

This is a Syntax highlight Engine. This generates a part of HTML string by marking up the input string with span tags along the given rules so that you can easily coloring with CSS.

Advantage is the simpleness. This provides a simple way to define the highlighting rules by packing the complicated part of it into regular expression. Also, This works faster than similar highlight solutions on rough benchmarks.

Here is a working example of This module.

http://jamadam.com/dev/cpan/demo/Syntax/Highlight/Engine/Simple/

INTERFACE

new

new constractor calls for following arguments.

    type

    File type. This argument causes specific sub class to be loaded.

    syntax

    With this argument, you can assign rules in constractor.

setParams

This method calls for following arguments.

    html_escape_code_ref

    HTML escape code ref. Default subroutine escapes 3 characters '&', '<' and '>'.

setSyntax

Set the rules for highlight. It calls for a argument syntax in array.

$highlighter->setSyntax(
    syntax => [
            {
                class => 'tag',
                regexp => "<.+?>",
            },
            {
                class => 'quote',
                regexp => "'.*?'",
                container => 'tag',
            },
            {
                class => 'wquote',
                regexp => '".*?"',
                container => 'tag',
            },
            {
                class => 'keyword',
                regexp => 'somekeyword',
                container => ['tag', 'quote', 'wquote'],
            },
    ]
);

The array can contain rules in hash which is consists of 3 keys, class, regexp and container.

    class

    This appears to the output SPAN tag.

    regexp

    Regular expression to be highlighted.

    container

    Class names of allowed container. It can be given in String or Array. This restricts the regexp to stand only inside of the classes. This parameter also works to ease the regulation some time. The highlighting rules doesn't stand in any container in default. This parameter eliminates it.

appendSyntax

Append syntax by giving a hash.

$highlighter->setSyntax(
    syntax => {
        class       => 'quote',
        regexp      => "'.*?'",
        container   => 'tag',
    }
);

doStr

Highlighting input string and returns the marked up string. This method calls for following arguments.

    str

    String.

    tab_width

    Tab width for tab-space conversion. -1 for disable it. -1 is the default.

$highlighter->doStr(
    str         => $str,
    tab_width   => 4
);

doFile

Highlighting the file and returns the marked up string. This method calls for following arguments.

    file

    File name.

    tab_width

    Tab width for tab-space conversion. -1 for disable it. -1 is the default.

    encode

    Set the encode of file. utf8 is the default.

$highlighter->doStr(
    str         => $str,
    tab_width   => 4,
    encode      => 'utf8'
);

array2regexp

This is a utility method for converting string array to regular expression.

getClassNames

Returns the class names in array.

DIAGNOSTICS

doStr method got undefined value
File open failed

CONFIGURATION AND ENVIRONMENT

Syntax::Highlight::Engine::Simple requires no configuration files or environment variables. Specific language syntax can be defined with sub classes and loaded in constructor if you give it the type argument.

DEPENDENCIES

UNIVERSAL::require
encoding

INCOMPATIBILITIES

None reported.

BUGS AND LIMITATIONS

No bugs have been reported.

Please report any bugs or feature requests to bug-syntax-highlight-engine-Simple@rt.cpan.org, or through the web interface at http://rt.cpan.org.

SEE ALSO

Syntax::Highlight::Engine::Simple::HTML
Syntax::Highlight::Engine::Simple::Perl

AUTHOR

Sugama Keita <sugama@jamadam.com>

LICENCE AND COPYRIGHT

Copyright (c) 2008, Sugama Keita <sugama@jamadam.com>. All rights reserved.

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

DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.