Science, Programming, Electronics, Languages
In the second part of this chapter, I am talking about building the AST fragments for hosting strings, arrays, and hashes, as well as bigger constructs such as expressions, and how to manipulate these elements in a program.
In the second part of this chapter, I am talking about building the AST fragments for hosting strings, arrays, and hashes, as well as bigger constructs such as expressions, and how to manipulate these elements in a program.
An overview of the new features appeared at the Coronavirus Observer site during the first month after its launch.
An overview of the new features appeared at the Coronavirus Observer site during the first month after its launch.
In this chapter, we will be working on implementing AST, the abstract syntax tree, that represents the program in the form of connected nodes, which are responsible for atomic actions such as variable declaration, or computing a sum of two values, or calling a function. This is probably the most difficult and brain-puzzling chapters in the book.
In this chapter, we will be working on implementing AST, the abstract syntax tree, that represents the program in the form of connected nodes, which are responsible for atomic actions such as variable declaration, or computing a sum of two values, or calling a function. This is probably the most difficult and brain-puzzling chapters in the book.
The answer is: Accessing array or hash items with a proper sigil!
The answer is: Accessing array or hash items with a proper sigil!
In this chapter, we will extend the Lingua language with aggregate data types: arrays and hashes. From this point, we will call variables that contain numbers and strings scalar variables.
In this chapter, we will extend the Lingua language with aggregate data types: arrays and hashes. From this point, we will call variables that contain numbers and strings scalar variables.
I have written an article for perl.com about a number of interesting tricks in the Raku programming language that were used for building the Coronavirus Observer site.
I have written an article for perl.com about a number of interesting tricks in the Raku programming language that were used for building the Coronavirus Observer site.
There are a number of issues with the raw COVID-19 statistical data. Most, if not all, of them come from the fact that different countries use different methods to get the numbers.
There are a number of issues with the raw COVID-19 statistical data. Most, if not all, of them come from the fact that different countries use different methods to get the numbers.
Until now, the language only worked with numbers—integer and floating point, both in regular and in scientific notation. In the following two chapters, we’ll update the language and integrate other data types to it: strings, arrays, and hashes. Let us start with strings.
Until now, the language only worked with numbers—integer and floating point, both in regular and in scientific notation. In the following two chapters, we’ll update the language and integrate other data types to it: strings, arrays, and hashes. Let us start with strings.
In this chapter, we’ll review the grammar that was created so far and will try to make some changes to make the grammar and the actions more compact, more readable and more user-friendly. The bigger the language becomes, the more important it is to keep its code maintainable.
In this chapter, we’ll review the grammar that was created so far and will try to make some changes to make the grammar and the actions more compact, more readable and more user-friendly. The bigger the language becomes, the more important it is to keep its code maintainable.
When working on preparing data for the covid.observer site, I discovered a couple of interesting findings, which I did not notice earlier or did not pay much attention to it.
When working on preparing data for the covid.observer site, I discovered a couple of interesting findings, which I did not notice earlier or did not pay much attention to it.
Yesterday, I launched covid.observer, the website displaying Coronavirus statistics. Unlike the most sources, this site tries to deliver the same data to avoid panic.
Yesterday, I launched covid.observer, the website displaying Coronavirus statistics. Unlike the most sources, this site tries to deliver the same data to avoid panic.
The goal of this chapter is to build a better interpreter using all the achievements of the previous three chapters. The new interpreter will be able to work with numbers of different types and to perform different arithmetic operations with variables. To make it even better, we’ll start with a very useful addition — comments.
The goal of this chapter is to build a better interpreter using all the achievements of the previous three chapters. The new interpreter will be able to work with numbers of different types and to perform different arithmetic operations with variables. To make it even better, we’ll start with a very useful addition — comments.
I’ve re-published a bunch of interviews that I took about five years ago: brian d foy Audrey Tang Flávio Glock Damian Conway Stevan Little Carl Mäsak Reini Urban There’s a couple of more, dating even earlier history. Maybe one day they will appear here too 🙂
In this chapter, we will create a program that can evaluate simple arithmetic expressions such as 3 + 4 or 3 – 3 * 7. We’ll start from the simplest equations with two operands and will work until we can introduce parentheses.
In this chapter, we will create a program that can evaluate simple arithmetic expressions such as 3 + 4 or 3 – 3 * 7. We’ll start from the simplest equations with two operands and will work until we can introduce parentheses.
In the following two chapters, we will temporary leave the compiler created in the previous chapter, and will be working on a separate helper project, a calculator. It is an interesting thing on its own, and we will explore it on an isolated example. In the next chapters, it will be integrated to the interpreter.
In the following two chapters, we will temporary leave the compiler created in the previous chapter, and will be working on a separate helper project, a calculator. It is an interesting thing on its own, and we will explore it on an isolated example. In the next chapters, it will be integrated to the interpreter.
Let’s start exploring the power or Raku’s grammars and regexes from a simple interpreter program that parses and executes the following tiny program. I will call this language Lingua.
Let’s start exploring the power or Raku’s grammars and regexes from a simple interpreter program that parses and executes the following tiny program. I will call this language Lingua.
Before the GitHub 02/02/2020 Archive program, I uploaded all my books published by DeepText to github.com/ash/books. I hope it will be frozen and archived for the future generations :-D.
Before the GitHub 02/02/2020 Archive program, I uploaded all my books published by DeepText to github.com/ash/books. I hope it will be frozen and archived for the future generations :-D.
Some time ago, I published an article about using NativeCall in Raku to call functions written in C. Today, let’s see how you can call simple functions written in C++ or in Fortran.
Some time ago, I published an article about using NativeCall in Raku to call functions written in C. Today, let’s see how you can call simple functions written in C++ or in Fortran.
I’d like to try how Raku can help in building a simple stack-oriented language.
I’d like to try how Raku can help in building a simple stack-oriented language.
Welcome to Day 24 of this year’s A Language a Day Advent Calendar. Today’s topic is introduction to the Factor programming language.
Welcome to Day 24 of this year’s A Language a Day Advent Calendar. Today’s topic is introduction to the Factor programming language.