Android Tutorial [B4X] [B4XPages] BCTextEngine parser: B4X Code Highlighter

This is an example of creating a custom parser for BBCodeView. It depends on BCTextEngine v1.61+ which allows setting the text runs directly instead of parsing the BBCode.

The parser is compatible with B4A, B4J and B4i. Note that in B4J the text looks less clear with the dark theme due to the antialiasing method used and the small text. It does look good with the dark theme in B4A and B4i.

The class is included in the B4A example.

It is an example. It doesn't support all of B4X programming language features.

 

[Alexander Stolte]

You are the best!!!!!!!!!! i'm smyling...

 

[AnandGupta]

GOD please give me 10% of knowledge and enthusiasm of Erel.

Regards,

Anand

 

[JMB]

That is absolutely superb!

 

[William Lancee]

The B4X code parser itself is a work of art!

 

[jahswant]

It is an example. It doesn't support all of B4X programming language features.

Maybe a Cross Platform IDE in the future future.

 

[Erel]

Example updated, it is based on B4XPages.

 

[JakeBullet70]

Got to love b4x. Downloaded example, two hours later have both an Windows and Android version to parse and view our companies custom XML. They want to use Xamarin so I am having a fight at the moment...

 

[AnandGupta]

so I am having a fight at the moment...

We all are behind you

Regards,

Anand

 

[JakeBullet70]

They want to use Xamarin so I am having a fight at the moment...

I win!

 

[LucaMs]

There is a bug; parsing this line:

           Page1.Title = $"$1.2{fraction * 100}%-${url}"$

 

[Erel]

Parsing smart strings, and especially multiline smart strings, is quite complex. As written in the first post this parser was written as an example and it doesn't support all of B4X features.

 

[LucaMs]

Parsing smart strings, and especially multiline smart strings, is quite complex. As written in the first post this parser was written as an example and it doesn't support all of B4X features.

Which means: fix it yourself

Too bad, my laziness hoped the author would do it

 

[KMatle]

 

[Erel]

 

[LucaMs]

I know; that problem, anyway, is that it crashes. If it doesn't recognize some element, keeping its default color but without crashing ...!

 

[LucaMs]

I know; that problem, anyway, is that it crashes. If it doesn't recognize some element, keeping its default color but without crashing ...!

Solved.