[laumars]

> Leasot is written in Node.js.

Ah yes, my mistake. Though being written in Javascript makes it even worse for requiring dependencies as at least Python ships with most distros default install.

> Regarding pretty output - that could definitely be argued, but Leasot also allows for different reporters, say you want the output in JSON/XML for an external tool. That is extendable, whereas grep over regex in CLI is fast & powerful but not as flexible

I'd already addressed that point. UNIX pipes allow you to extend grep using any language (including Javascript / node.js) you want. Leasot if only extendible if you already know Javascript and node.js. Plus there are plenty of CLI tools available that can read list input from STDIN and spit out JSON or XML - so you don't even need to learn how to program to convert data files.

I've lost count of the number of times I've seen people write multi-functional programs to solve problems that would have been quicker (both in development time, and execution) to pipe a couple of existing programs together. Heck, I've even fallen into this trap myself before.