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{ Tag Archives } compilers

When Does Lexing End and Parsing Begin?

I had an interesting bug in my compiler: The parser would fail on blank lines. To a certain degree, this makes sense; the formal grammar of the language does not include blank lines. This is invalid input! On the other hand, every programming language ever invented, as far as I know, simply ignores them. That [...]

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Let’s Build a Compiler… In F#!

I’m building a small compiler for a toy language which emits .NET executables, implemented in F#. Demo compilers are a dime a dozen, but there are a few things which make this project distinct:

No lexer or parser generators are used. The entire compiler is written from the ground up, and is intended to be fairly [...]

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Great CS Textbooks, Cheap

I’m probably late to this party, but I’ve discovered that you can find incredible deals on used CS textbooks at Amazon, especially for older editions.
For example, I recently ordered a copy of Programming Language Pragmatics, by Michael L. Scott. It’s $63 new for the hardcover or $43 on a Kindle. I got a used copy of [...]

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Comparing C#, C++, and Delphi (Win32) Generics

C#, C++, and Delphi all have a generic type and method language feature. Although all three languages are statically typed, they implement generics in very different ways. I’m going to give a brief overview of the differences, both in terms of language features and implementation. I presume that Delphi Prism generics work essentially the same [...]

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