Creating a new scheme in PN portable

It took me some time to find where things are explained, too. It seems that all of the .scheme files refer to lexers that are built-in to the Scintilla SciLexer.dll file. Unless the language you’re trying to add is 100% compatible to one of those built-in lexers, yeah, you need to make a .schemedef file. Here’s an example file for prolog. I think I got it from somewhere on here.

<?xml version="1.0" ?>

<!-- This is a very improvised, kluged schemedef for Prolog, written without

documentation of Programmers Notepad scheme definition syntax.

Main limitations:

No folding of comments.

Quoted atoms with a quote doubled ('don''t panic') are not treated correctly.

Escaped quoted atoms ('don't panic') are OK and are preferred.

Michael A. Covington - University of Georgia - http://www.ai.uga.edu/mc

-->

<Scheme>

<keyword-classes>

<keyword-class name="prolog">

<!-- Strictly speaking Prolog has no keywords. These are the ISO directives. -->

dynamic multifile module discontiguous set_prolog_flag

op char_conversion initialization include ensure_loaded

</keyword-class>

</keyword-classes>

<schemedef name="prolog" title="Prolog" author="M. Covington" url="http://www.ai.uga.edu/mc/" version="1"

casesensitive="true" braces="{[()]}">

<!-- Max 2 -->

<strings>

<!-- Quoted atom, with as an escape character. -->

<stringtype id="0" start="'" end="'" multiline="false" escape="" />

<!-- Double quoted string, same -->

<stringtype id="1" start=""" end=""" multiline="false" escape="" />

</strings>

<identifiers start="[_a-zA-Z]" />

<comments>

<line start="%" />

<block start="/*" end="*/" />

</comments>

<numbers start="[0-9]" content="[0-9.]" />

<!-- From here on is the traditional scheme definition block... -->

<lexer name="prolog" />

<use-styles>

<style name="Default" key="32" />

<style name="Line Comment" key="1" class="comment" />

<style name="Block Comment" key="2" class="comment" />

<style name="Atom, Variable" key="3" fore="000080"/>

<style name="Number" key="4" class="number" />

<style name="Directive" key="5" class="keyword" />

<!-- <style name="Keywords 2" key="6" class="keyword" fore="f80000" /> -->

<style name="Quoted Atom" key="10" class="string" />

<style name="Edinburgh String" key="11" class="string" fore="f80000"/>

<!-- <style name="Pre-Processor" key="12" class="preprocessor" /> -->

<!-- <style name="Special Identifier" key="13" fore="478698" /> -->

</use-styles>

<use-keywords>

<keyword key="0" name="Keywords" class="prolog"/>

</use-keywords>

</schemedef>

</Scheme>