Category Archives: Perl

Reference strepr implementation

Posted on 2013/07/03 by niemeyer

In an effort to polish the recently released draft of the strepr v1 specification, I’ve spent the last couple of days in a Go reference implementation. The implemented algorithm is relatively simple, efficient, and consumes a conservative amount of memory. … Continue reading →

Posted in Design, Erlang, Go, Java, Lua, MongoDB, Perl, Project, Python, Ruby, Security, Snippet | 2 Comments

IEEE-754 brain teaser

Posted on 2013/06/27 by niemeyer

Here is a small programming brain teaser for the weekend: Assume uf is an unsigned integer with 64 bits that holds the IEEE-754 representation for a binary floating point number of that size. The questions are:

Posted in C/C++, Erlang, Go, Haskell, Java, Math, Perl, Puzzle, Python, Ruby, Snippet | 7 Comments

Efficient algorithm for expanding circular buffers

Posted on 2010/12/23 by niemeyer

Circular buffers are based on an algorithm well known by any developer who’s got past the “Hello world!” days. They offer a number of key characteristics with wide applicability such as constant and efficient memory use, efficient FIFO semantics, etc. … Continue reading →

Posted in Architecture, Article, C/C++, Erlang, Go, Haskell, Java, Lua, Perl, Python, Ruby, Snippet | 4 Comments

Introducing The Hacking Sandbox

Posted on 2010/09/25 by niemeyer

When I started programming in Python long ago, one of the features which really hooked me up was the quality interactive interpreter offered with the language implementation. It was (and still is) a fantastic way to experiment with syntax, semantics, … Continue reading →

Posted in C/C++, Erlang, Go, Haskell, Java, Lua, Perl, Ruby | 10 Comments

The forgotten art of error checking

Posted on 2010/06/17 by niemeyer

I was just rambling randomly yesterday, in the usual microblogging platforms, about how result checking seems to be ignored or done badly. The precise wording was: It’s really amazing how little attention error handling receives in most software development. Even … Continue reading →

Posted in Architecture, Go, Java, Lua, Perl, Python, Ruby, Snippet, Test | 10 Comments

Using pyperl to build a python-like xchat interface for perl

Posted on 2003/10/27 by niemeyer

My weekend was taken by boring academic stuff. More specifically, I’ve built a validator in C, including a tokenizer, a parser, and a scope system, to check for a small subset of the C language syntax. Anyway.. I was still … Continue reading →

Posted in Perl, Python, Snippet | 1 Comment

Webmin and Perl inside Python

Posted on 2003/10/25 by niemeyer

Today I’ve been talking to Cavassin about Webmin, and wondering if it would be possible to write Python modules for it. I was sure that I wasn’t being original in that idea, and Cavassin also mentioned that he had read … Continue reading →

Posted in Perl, Python, Snippet | Leave a comment