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.\" ========================================================================
.\"
.IX Title "Syntax::Highlight::Engine::Simple 3pm"
.TH Syntax::Highlight::Engine::Simple 3pm "2011-07-07" "perl v5.12.4" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Syntax::Highlight::Engine::Simple \- Simple Syntax Highlight Engine
.SH "VERSION"
.IX Header "VERSION"
This document describes Syntax::Highlight::Engine::Simple
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    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);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This is a Syntax highlight Engine. This generates a part of \s-1HTML\s0 string by
marking up the input string with span tags along the given rules so that you
can easily coloring with \s-1CSS\s0.
.PP
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.
.PP
Here is a working example of This module.
.PP
http://jamadam.com/dev/cpan/demo/Syntax/Highlight/Engine/Simple/
.SH "INTERFACE"
.IX Header "INTERFACE"
.SS "new"
.IX Subsection "new"
\&\fInew\fR constractor calls for following arguments.
.Sp
.RS 4
\&\fBtype\fR
.Sp
File type. This argument causes specific sub class to be loaded.
.Sp
\&\fBsyntax\fR
.Sp
With this argument, you can assign rules in constractor.
.RE
.SS "setParams"
.IX Subsection "setParams"
This method calls for following arguments.
.Sp
.RS 4
\&\fBhtml_escape_code_ref\fR
.Sp
\&\s-1HTML\s0 escape code ref. Default subroutine escapes 3 characters '&', '<' and '>'.
.RE
.SS "setSyntax"
.IX Subsection "setSyntax"
Set the rules for highlight. It calls for a argument \fIsyntax\fR in array.
.PP
.Vb 10
\&    $highlighter\->setSyntax(
\&        syntax => [
\&                {
\&                    class => \*(Aqtag\*(Aq,
\&                    regexp => "<.+?>",
\&                },
\&                {
\&                    class => \*(Aqquote\*(Aq,
\&                    regexp => "\*(Aq.*?\*(Aq",
\&                    container => \*(Aqtag\*(Aq,
\&                },
\&                {
\&                    class => \*(Aqwquote\*(Aq,
\&                    regexp => \*(Aq".*?"\*(Aq,
\&                    container => \*(Aqtag\*(Aq,
\&                },
\&                {
\&                    class => \*(Aqkeyword\*(Aq,
\&                    regexp => \*(Aqsomekeyword\*(Aq,
\&                    container => [\*(Aqtag\*(Aq, \*(Aqquote\*(Aq, \*(Aqwquote\*(Aq],
\&                },
\&        ]
\&    );
.Ve
.PP
The array can contain rules in hash which is consists of 3 keys, \fIclass\fR,
\&\fIregexp\fR and \fIcontainer\fR.
.Sp
.RS 4
\&\fBclass\fR
.Sp
This appears to the output \s-1SPAN\s0 tag.
.Sp
\&\fBregexp\fR
.Sp
Regular expression to be highlighted.
.Sp
\&\fBcontainer\fR
.Sp
Class names of allowed container. It can be given in String or Array. This
restricts the \fIregexp\fR 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.
.RE
.SS "appendSyntax"
.IX Subsection "appendSyntax"
Append syntax by giving a hash.
.PP
.Vb 7
\&    $highlighter\->setSyntax(
\&        syntax => {
\&            class       => \*(Aqquote\*(Aq,
\&            regexp      => "\*(Aq.*?\*(Aq",
\&            container   => \*(Aqtag\*(Aq,
\&        }
\&    );
.Ve
.SS "doStr"
.IX Subsection "doStr"
Highlighting input string and returns the marked up string. This method calls
for following arguments.
.Sp
.RS 4
\&\fBstr\fR
.Sp
String.
.Sp
\&\fBtab_width\fR
.Sp
Tab width for tab-space conversion. \-1 for disable it. \-1 is the default.
.RE
.PP
.Vb 4
\&    $highlighter\->doStr(
\&        str         => $str,
\&        tab_width   => 4
\&    );
.Ve
.SS "doFile"
.IX Subsection "doFile"
Highlighting the file and returns the marked up string. This method calls for
following arguments.
.Sp
.RS 4
\&\fBfile\fR
.Sp
File name.
.Sp
\&\fBtab_width\fR
.Sp
Tab width for tab-space conversion. \-1 for disable it. \-1 is the default.
.Sp
\&\fBencode\fR
.Sp
Set the encode of file. utf8 is the default.
.RE
.PP
.Vb 5
\&    $highlighter\->doStr(
\&        str         => $str,
\&        tab_width   => 4,
\&        encode      => \*(Aqutf8\*(Aq
\&    );
.Ve
.SS "array2regexp"
.IX Subsection "array2regexp"
This is a utility method for converting string array to regular expression.
.SS "getClassNames"
.IX Subsection "getClassNames"
Returns the class names in array.
.SH "DIAGNOSTICS"
.IX Header "DIAGNOSTICS"
.ie n .IP """doStr method got undefined value""" 4
.el .IP "\f(CWdoStr method got undefined value\fR" 4
.IX Item "doStr method got undefined value"
.PD 0
.ie n .IP """File open failed""" 4
.el .IP "\f(CWFile open failed\fR" 4
.IX Item "File open failed"
.PD
.SH "CONFIGURATION AND ENVIRONMENT"
.IX Header "CONFIGURATION AND ENVIRONMENT"
\&\fISyntax::Highlight::Engine::Simple\fR 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.
.SH "DEPENDENCIES"
.IX Header "DEPENDENCIES"
.IP "UNIVERSAL::require" 4
.IX Item "UNIVERSAL::require"
.PD 0
.IP "encoding" 4
.IX Item "encoding"
.PD
.SH "INCOMPATIBILITIES"
.IX Header "INCOMPATIBILITIES"
None reported.
.SH "BUGS AND LIMITATIONS"
.IX Header "BUGS AND LIMITATIONS"
No bugs have been reported.
.PP
Please report any bugs or feature requests to
\&\f(CW\*(C`bug\-syntax\-highlight\-engine\-Simple@rt.cpan.org\*(C'\fR, or through the web
interface at <http://rt.cpan.org>.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
.IP "Syntax::Highlight::Engine::Simple::HTML" 4
.IX Item "Syntax::Highlight::Engine::Simple::HTML"
.PD 0
.IP "Syntax::Highlight::Engine::Simple::Perl" 4
.IX Item "Syntax::Highlight::Engine::Simple::Perl"
.PD
.SH "AUTHOR"
.IX Header "AUTHOR"
Sugama Keita  \f(CW\*(C`<sugama@jamadam.com>\*(C'\fR
.SH "LICENCE AND COPYRIGHT"
.IX Header "LICENCE AND COPYRIGHT"
Copyright (c) 2008, Sugama Keita \f(CW\*(C`<sugama@jamadam.com>\*(C'\fR. All rights
reserved.
.PP
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See \fIperlartistic\fR.
.SH "DISCLAIMER OF WARRANTY"
.IX Header "DISCLAIMER OF WARRANTY"
\&\s-1BECAUSE\s0 \s-1THIS\s0 \s-1SOFTWARE\s0 \s-1IS\s0 \s-1LICENSED\s0 \s-1FREE\s0 \s-1OF\s0 \s-1CHARGE\s0, \s-1THERE\s0 \s-1IS\s0 \s-1NO\s0 \s-1WARRANTY\s0
\&\s-1FOR\s0 \s-1THE\s0 \s-1SOFTWARE\s0, \s-1TO\s0 \s-1THE\s0 \s-1EXTENT\s0 \s-1PERMITTED\s0 \s-1BY\s0 \s-1APPLICABLE\s0 \s-1LAW\s0. \s-1EXCEPT\s0 \s-1WHEN\s0
\&\s-1OTHERWISE\s0 \s-1STATED\s0 \s-1IN\s0 \s-1WRITING\s0 \s-1THE\s0 \s-1COPYRIGHT\s0 \s-1HOLDERS\s0 \s-1AND/OR\s0 \s-1OTHER\s0 \s-1PARTIES\s0
\&\s-1PROVIDE\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \*(L"\s-1AS\s0 \s-1IS\s0\*(R" \s-1WITHOUT\s0 \s-1WARRANTY\s0 \s-1OF\s0 \s-1ANY\s0 \s-1KIND\s0, \s-1EITHER\s0
\&\s-1EXPRESSED\s0 \s-1OR\s0 \s-1IMPLIED\s0, \s-1INCLUDING\s0, \s-1BUT\s0 \s-1NOT\s0 \s-1LIMITED\s0 \s-1TO\s0, \s-1THE\s0 \s-1IMPLIED\s0
\&\s-1WARRANTIES\s0 \s-1OF\s0 \s-1MERCHANTABILITY\s0 \s-1AND\s0 \s-1FITNESS\s0 \s-1FOR\s0 A \s-1PARTICULAR\s0 \s-1PURPOSE\s0. \s-1THE\s0
\&\s-1ENTIRE\s0 \s-1RISK\s0 \s-1AS\s0 \s-1TO\s0 \s-1THE\s0 \s-1QUALITY\s0 \s-1AND\s0 \s-1PERFORMANCE\s0 \s-1OF\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \s-1IS\s0 \s-1WITH\s0
\&\s-1YOU\s0. \s-1SHOULD\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \s-1PROVE\s0 \s-1DEFECTIVE\s0, \s-1YOU\s0 \s-1ASSUME\s0 \s-1THE\s0 \s-1COST\s0 \s-1OF\s0 \s-1ALL\s0
\&\s-1NECESSARY\s0 \s-1SERVICING\s0, \s-1REPAIR\s0, \s-1OR\s0 \s-1CORRECTION\s0.
.PP
\&\s-1IN\s0 \s-1NO\s0 \s-1EVENT\s0 \s-1UNLESS\s0 \s-1REQUIRED\s0 \s-1BY\s0 \s-1APPLICABLE\s0 \s-1LAW\s0 \s-1OR\s0 \s-1AGREED\s0 \s-1TO\s0 \s-1IN\s0 \s-1WRITING\s0
\&\s-1WILL\s0 \s-1ANY\s0 \s-1COPYRIGHT\s0 \s-1HOLDER\s0, \s-1OR\s0 \s-1ANY\s0 \s-1OTHER\s0 \s-1PARTY\s0 \s-1WHO\s0 \s-1MAY\s0 \s-1MODIFY\s0 \s-1AND/OR\s0
\&\s-1REDISTRIBUTE\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \s-1AS\s0 \s-1PERMITTED\s0 \s-1BY\s0 \s-1THE\s0 \s-1ABOVE\s0 \s-1LICENCE\s0, \s-1BE\s0
\&\s-1LIABLE\s0 \s-1TO\s0 \s-1YOU\s0 \s-1FOR\s0 \s-1DAMAGES\s0, \s-1INCLUDING\s0 \s-1ANY\s0 \s-1GENERAL\s0, \s-1SPECIAL\s0, \s-1INCIDENTAL\s0,
\&\s-1OR\s0 \s-1CONSEQUENTIAL\s0 \s-1DAMAGES\s0 \s-1ARISING\s0 \s-1OUT\s0 \s-1OF\s0 \s-1THE\s0 \s-1USE\s0 \s-1OR\s0 \s-1INABILITY\s0 \s-1TO\s0 \s-1USE\s0
\&\s-1THE\s0 \s-1SOFTWARE\s0 (\s-1INCLUDING\s0 \s-1BUT\s0 \s-1NOT\s0 \s-1LIMITED\s0 \s-1TO\s0 \s-1LOSS\s0 \s-1OF\s0 \s-1DATA\s0 \s-1OR\s0 \s-1DATA\s0 \s-1BEING\s0
\&\s-1RENDERED\s0 \s-1INACCURATE\s0 \s-1OR\s0 \s-1LOSSES\s0 \s-1SUSTAINED\s0 \s-1BY\s0 \s-1YOU\s0 \s-1OR\s0 \s-1THIRD\s0 \s-1PARTIES\s0 \s-1OR\s0 A
\&\s-1FAILURE\s0 \s-1OF\s0 \s-1THE\s0 \s-1SOFTWARE\s0 \s-1TO\s0 \s-1OPERATE\s0 \s-1WITH\s0 \s-1ANY\s0 \s-1OTHER\s0 \s-1SOFTWARE\s0), \s-1EVEN\s0 \s-1IF\s0
\&\s-1SUCH\s0 \s-1HOLDER\s0 \s-1OR\s0 \s-1OTHER\s0 \s-1PARTY\s0 \s-1HAS\s0 \s-1BEEN\s0 \s-1ADVISED\s0 \s-1OF\s0 \s-1THE\s0 \s-1POSSIBILITY\s0 \s-1OF\s0
\&\s-1SUCH\s0 \s-1DAMAGES\s0.