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Rust-03: Improving the simple program

In the last post we created a simple program that would accept an input like 5+5 and calculates the result. In this post we will improve this program. To prepare for adding more operators we need to improve the input-parsing. Currently, we just split the input-string at the plus-sign. If we want to know the operator, we have to choose another approach. In this case I chose regex: #[derive(Debug)]struct Operation{left: i32,operator: char,right: i32,}implOperation{fn from_string(input: &String)-> Option<Operation>{letregex=Regex::new(r"^\s*(\d+)\s*([+])\s*(\d+)\s*$"). Continue reading

Rust-02: The beginning

At first, I didn’t like Rust. Managing memory myself is something I don’t want to do. After a first look at Rust and setting it aside for a few weeks, it appeared back on my radar. I thought: “This time I’m looking deeper into it”. So I started by reading the Rust Book; and I’m still reading it and find new concepts that are really clever. One of the first things I discovered is that I do not need to manage memory myself. Continue reading

Rust-01: Why am I learning Rust?

This is a good question, a very good question. Why am I learning Rust? To begin with, I programmed in a lot of languages so far: C++, Python, Swift, Java, Kotlin and TypeScript to name a few. All languages have some features I missed when programming in other languages. Currently, my favorite languages are Kotlin and TypeScript; with Kotlin having the lead. These languages are expressive, and really nice to write. Continue reading