17 April 2014

This post is to share how I was able to configure a new language with source highlight with asciidoc.

You will only need this if you have created a new language or you are writing about a language that dblatex doesn’t support.

In my case I have created a pseudo-code language to teach algorithm, in portuguese. This is a simplified version of a language: if=SE, else=SENAO, then=ENTAO, write=ESCREVA, read=LEIA. The ideia is to highlight these keywords.

First let’s download a new copy of asciidoc:

$ cd ~
$ git clone https://github.com/asciidoc/asciidoc myasciidoc 

Then we’re going to configure the new language dbalatex style. To create a new language called “pseudo” add the following to myasciidoc/dblatex/asciidoc-dblatex.sty:

\lstdefinelanguage{pseudo}
{
morekeywords={ENQUANTO,PARA,SE,SENAO,ENTAO},
morekeywords=[2]{LEIA,ESCREVA},
sensitive=true,
morecomment=[l]{//},
morecomment=[s]{/*}{*/},
morestring=[b]",
extendedchars=true,
keywordstyle=[2]{\color{black}\bfseries}
}

With the new language configured, the next step is to create a test file (mylang_test.adoc):

== Testing new lang

[source,pseudo]
----
SE (x>2) ENTAO
  ESCREVA "Alguma coisa"
SENAO
  LEIA "Outra coisa"
----

The last step will be to generate the pdf with dbalatex and using the custom asciidoc:

$ myasciidoc/a2x.py -f pdf mylang_test.adoc 

Here’s how the final pdf looks like:

Final PDF

References



blog comments powered by Disqus