Been a quite long time since the last update. I’m a bit ashamed for not keeping the blog updated regularly but I must confess that I’ve been expending my time on other affairs more important to me.
Anyways, in this weeks I’ve been working again on TextAreaPlus, actually I’ve been busy making a full rewrite of the lexing scanner and optimizing the implementation to the limits of my knowledge. The algorithm used is described in the project wiki.Read more
Long time since I last wrote here so I’ll take the opportunity to introduce (just joking) the Binary Search algorithm.
I was looking for a safe way to find the line of text where a user clicks the mouse. I needed this for the TextArea+ editor. Fortunately Mozilla supports the DOM3’s compareDocumentPosition() function, so I took advantatge of it.Read more
To my surprise I couldn’t find much info on the net about implementing text editors. So I had to figure it out on my own, however as often happens, while implementing it I found some info when looking for related stuff.
There seems to be two common ways to implement text editors, those which are line-based and those which are block-based. I started with the block-based approach, dividing the text buffer in tokens and storing the position and color attributes in each block. Soon I found that this approach gets pretty complex quite fast. So I turned the code into a line-based editor.Read more
In a previous post I was moaning about the lack of a proper browser based (dhtml powered) syntax highlighting code editor.
I took the aproach descrived in that post of using a translucent textarea over the syntax highlighted code to achieve the result with the minimum of effort. Well, it hast turned out that it won’t work as fast as spected.Read more