NAME
Syntax::Highlight::Engine::Kate - a port to Perl of the syntax highlight engine of the Kate texteditor.
SYNOPSIS
#if you want to create a compiled executable, you may want to do this:
use Syntax::Highlight::Engine::Kate::All;
my $hl = new Syntax::Highlight::Engine::Kate(
language => 'Perl',
substitutions => {
"<" => "<",
">" => ">",
"&" => "&",
" " => " ",
"\t" => " ",
"\n" => "<BR>\n",
},
format_table => {
Alert => ["<font color=\"#0000ff\">", "</font>"],
BaseN => ["<font color=\"#007f00\">", "</font>"],
BString => ["<font color=\"#c9a7ff\">", "</font>"],
Char => ["<font color=\"#ff00ff\">", "</font>"],
Comment => ["<font color=\"#7f7f7f\"><i>", "</i></font>"],
DataType => ["<font color=\"#0000ff\">", "</font>"],
DecVal => ["<font color=\"#00007f\">", "</font>"],
Error => ["<font color=\"#ff0000\"><b><i>", "</i></b></font>"],
Float => ["<font color=\"#00007f\">", "</font>"],
Function => ["<font color=\"#007f00\">", "</font>"],
IString => ["<font color=\"#ff0000\">", ""],
Keyword => ["<b>", "</b>"],
Normal => ["", ""],
Operator => ["<font color=\"#ffa500\">", "</font>"],
Others => ["<font color=\"#b03060\">", "</font>"],
RegionMarker => ["<font color=\"#96b9ff\"><i>", "</i></font>"],
Reserved => ["<font color=\"#9b30ff\"><b>", "</b></font>"],
String => ["<font color=\"#ff0000\">", "</font>"],
Variable => ["<font color=\"#0000ff\"><b>", "</b></font>"],
Warning => ["<font color=\"#0000ff\"><b><i>", "</b></i></font>"],
},
);
#or
my $hl = new Syntax::Highlight::Engine::Kate::Perl(
substitutions => {
"<" => "<",
">" => ">",
"&" => "&",
" " => " ",
"\t" => " ",
"\n" => "<BR>\n",
},
format_table => {
Alert => ["<font color=\"#0000ff\">", "</font>"],
BaseN => ["<font color=\"#007f00\">", "</font>"],
BString => ["<font color=\"#c9a7ff\">", "</font>"],
Char => ["<font color=\"#ff00ff\">", "</font>"],
Comment => ["<font color=\"#7f7f7f\"><i>", "</i></font>"],
DataType => ["<font color=\"#0000ff\">", "</font>"],
DecVal => ["<font color=\"#00007f\">", "</font>"],
Error => ["<font color=\"#ff0000\"><b><i>", "</i></b></font>"],
Float => ["<font color=\"#00007f\">", "</font>"],
Function => ["<font color=\"#007f00\">", "</font>"],
IString => ["<font color=\"#ff0000\">", ""],
Keyword => ["<b>", "</b>"],
Normal => ["", ""],
Operator => ["<font color=\"#ffa500\">", "</font>"],
Others => ["<font color=\"#b03060\">", "</font>"],
RegionMarker => ["<font color=\"#96b9ff\"><i>", "</i></font>"],
Reserved => ["<font color=\"#9b30ff\"><b>", "</b></font>"],
String => ["<font color=\"#ff0000\">", "</font>"],
Variable => ["<font color=\"#0000ff\"><b>", "</b></font>"],
Warning => ["<font color=\"#0000ff\"><b><i>", "</b></i></font>"],
},
);
print "<html>\n<head>\n</head>\n<body>\n";
while (my $in = <>) {
print $hl->highlightText($in);
}
print "</body>\n</html>\n";DESCRIPTION
Syntax::Highlight::Engine::Kate is a port to perl of the syntax highlight engine of the Kate text editor.
The language xml files of kate have been rewritten to perl modules using a script. These modules function as plugins to this module.
Syntax::Highlight::Engine::Kate inherits Syntax::Highlight::Engine::Kate::Template.
OPTIONS
- language
-
Specify the language you want highlighted. look in the PLUGINS section for supported languages.
- plugins
-
If you created your own language plugins you may specify a list of them with this option.
plugins => [ ["MyModuleName", "MyLanguageName", "*,ext1;*.ext2", "Section"], .... ] - format_table
-
This option must be specified if the highlightText method needs to do anything usefull for you. All mentioned keys in the synopsis must be specified.
- substitutions
-
With this option you can specify additional formatting options.
METHODS
- extensions
-
returns a reference to the extensions hash,
- language(?$language?)
-
Sets and returns the current language that is highlighted. when setting the language a reset is also done.
- languageAutoSet($filename);
-
Suggests language name for the fiven file $filename
- languageList
-
returns a list of languages for which plugins have been defined.
- languagePlug($language);
-
returns the module name of the plugin for $language
- languagePropose($filename);
-
Suggests language name for the fiven file $filename
- sections
-
Returns a reference to the sections hash.
ATTRIBUTES
In the kate XML syntax files you find under the section <itemDatas> entries like <itemData name="Unknown Property" defStyleNum="dsError" italic="1"/>. Kate is an editor so it is ok to have definitions for forground and background colors and so on. However, since this Module is supposed to be a more universal highlight engine, the attributes need to be fully abstract. In which case, Kate does not have enough default attributes defined to fullfill all needs. Kate defines the following standard attributes: dsNormal, dsKeyword, dsDataType, dsDecVal, dsBaseN, dsFloat, dsChar, dsString, dsComment, dsOthers, dsAlert, dsFunction, dsRegionMarker, dsError. This module leaves out the "ds" part and uses following additional attributes: BString, IString, Operator, Reserved, Variable. I have modified the XML files so that each highlight mode would get it's own attribute. In quite a few cases still not enough attributes were defined. So in some languages different modes have the same attribute.
PLUGINS
Below an overview of existing plugins. All have been tested on use and can be created. The ones for which no testfile is available are marked untested. Those marked OK have highlighted the testfile without appearant mistakes. This does not mean that all bugs are shaken out.
LANGUAGE MODULE COMMENT
******** ****** ******
.desktop Desktop OK
4GL FourGL untested
4GL-PER FourGLminusPER untested
AHDL AHDL OK
ANSI C89 ANSI_C89 untested
ASP ASP OK
AVR Assembler AVR_Assembler seems to have issues
AWK AWK OK
Ada Ada untested
Alerts OK hidden module
Asm6502 Asm6502 seems to have issues
Bash Bash seems to have issues
BibTeX BibTex OK
C C untested
C# Cdash untested
C++ Cplusplus OK
CGiS CGiS untested
CMake CMake OK
CSS CSS OK
CUE Sheet CUE_Sheet untested
Cg Cg untested
ChangeLog ChangeLog untested
Cisco Cisco untested
Clipper Clipper OK
ColdFusion ColdFusion untested
Common Lisp Common_Lisp OK
Component-Pascal ComponentminusPascal untested
D D untested
Debian Changelog Debian_Changelog untested
Debian Control Debian_Control untested
Diff Diff untested
Doxygen Doxygen OK
E Language E_Language OK
Eiffel Eiffel untested
Euphoria Euphoria OK
Fortran Fortran OK
GDL GDL untested
GLSL GLSL OK
GNU Assembler GNU_Assembler untested
GNU Gettext GNU_Gettext untested
HTML HTML OK
Haskell Haskell OK
IDL IDL untested
ILERPG ILERPG untested
INI Files INI_Files untested
Inform Inform untested
Intel x86 (NASM) Intel_X86_NASM seems to have issues
JSP JSP OK
Java Java OK
JavaScript JavaScript OK
Javadoc Javadoc untested
KBasic KBasic untested
LDIF LDIF untested
LPC LPC untested
LaTeX LaTex seems to have issues
Lex/Flex Lex_Flex OK
LilyPond LilyPond OK
Literate Haskell Literate_Haskell OK
Lua Lua untested
MAB-DB MABminusDB untested
MIPS Assembler MIPS_Assembler untested
Makefile Makefile untested
Mason Mason untested
Matlab Matlab has issues
Modula-2 Modulaminus2 untested
Music Publisher Music_Publisher untested
Octave Octave OK
PHP (HTML) PHP_HTML OK
PHP_PHP OK hidden module
POV-Ray POV_Ray OK
Pascal Pascal untested
Perl Perl OK
PicAsm PicAsm seems to have issues
Pike Pike OK
PostScript PostScript OK
Prolog Prolog untested
PureBasic PureBasic OK
Python Python OK
Quake Script Quake_Script untested
R Script R_Script untested
REXX REXX untested
RPM Spec RPM_Spec untested
RSI IDL RSI_IDL untested
RenderMan RIB RenderMan_RIB OK
Ruby Ruby has issues
SGML SGML untested
SML SML untested
SQL SQL untested
SQL (MySQL) SQL_MySQL untested
SQL (PostgreSQL) SQL_PostgreSQL untested
Sather Sather untested
Scheme Scheme OK
Sieve Sieve untested
Spice Spice seems to have issues
Stata Stata OK
TI Basic TI_Basic untested
Tcl/Tk TCL_Tk OK
UnrealScript UnrealScript OK
VHDL VHDL untested
VRML VRML seems to have issues
Velocity Velocity untested
Verilog Verilog untested
WINE Config WINE_Config untested
XML XML OK
XML (Debug) XML_Debug untested
Yacc/Bison Yacc_Bison OK
ferite Ferite untested
progress Progress untested
scilab Scilab untested
txt2tags Txt2tags untested
xHarbour XHarbour OK
xslt Xslt untested
yacas Yacas untestedBUGS
Float is detected differently than in the Kate editor.
The regular expression engine of the Kate editor, qregexp, appears to be more tolerant to mistakes in regular expressions than perl. This might lead to error messages and differences in behaviour. Most of the problems were sorted out while developing, because error messages appeared. For as far as differences in behaviour is concerned, testing is the only way to find out, so i hope the users out there will be able to tell me more.
This module is mimicking the behaviour of the syntax highlight engine of the Kate editor. If you find a bug/mistake in the highlighting, please check if Kate behaves in the same way. If yes, the cause is likely to be found there.
TO DO
Rebuild the scripts i am using to generate the modules from xml files so they are more pro-actively tracking flaws in the build of the xml files like missing lists. Also regular expressions in the xml can be tested better before used in plugins.
Refine the testmethods in Syntax::Highlight::Engine::Kate::Template, so that choices for casesensitivity, dynamic behaviour and lookahead can be determined at generate time of the plugin, might increase throughput.
implement codefolding.
ACKNOWLEDGEMENTS
All the people who wrote Kate and the syntax highlight xml files.
AUTHOR AND COPYRIGHT
This module is written and maintained by:
Hans Jeuken < haje at toneel dot demon dot nl >
Copyright (c) 2006 by Hans Jeuken, all rights reserved.
You may freely distribute and/or modify this module under the same terms as Perl itself.
SEE ALSO
Synax::Highlight::Engine::Kate::Template http:://www.kate-editor.org