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Undo and redo have been a staple operation of text editors probably since the first typo was ever made, yet there has not been a lot of innovation around refining the idea of what undo and redo could be. Let’s explore what I mean… On The Subject of Undo Undo In order to understand how to change undo we first need to understand what the fundamental operation of ‘undo’ is supposed to do. I have alwa
Text editors can be an interesting challenge to program. The types of problems that text editors need to solve can range from trivial to mind-bogglingly difficult. Recently, I have been on something of a spiritual journey to rework some internal data structures in an editor I have been building, specifically the most fundamental data structure to any text editor: the text. Table of Contents Resour
Mapping strings to things makes sense. You take a meaningful string and you assign it a value. As with most things we do in programming there are many pitfalls to approaching a problem. So, lets explore some of them! What Exactly Is Your Problem? Here’s a situation we’ve all run into at some point. Say you’re reading records from a database and it has a column called “Type”. Lets say for some reas
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