A list of all pages on LeMoDa.net

Detect points of high curvature

Example implementation of the Knuth-Morris-Pratt algorithm in C

Example of calling printf from assembly on FreeBSD

Hello world example in x86 assembly language for FreeBSD

Changing the saddle on a bicycle

Repairing Japanese bicycle tyre valves (Dunlop, English, or Woods valves)

The worst place I've ever been

Notes on "A Brief on Tensor Analysis" by James Simmonds

My Douglas Adams book-signing story

Project Gutenberg recommended books

List of allocating C functions

Allowed variable names in C

Calculate Armstrong numbers in C

An example of array initialization in C

Length of array in C

Sort an array of strings in C

An example of atexit in C

Binary search in C using bsearch

Pointers in C with examples

The Boyer-Moore string matching algorithm in C

A C program which gets information about itself

Regular expressions to match C grammar

C string array initialization

Techniques for avoiding problems in C programming

Converting Cairo output to PNG

Display CGI environment variables

Comparison of CGI libraries in C

Show the types of all the ASCII characters

Example of command-line arguments in C

Print today's date in C

Convert decimal to binary in C

C program to delete files which match a pattern

Distinguish binary and text files in C

Detect Shift-JIS bytes in a stream of bytes

A simple "die" function for C - example of variable number of arguments

Get the current working directory in Unix in C

Printf, doubles and decimal places

Example of a doubly-linked list in C

Levenshtein edit distance with a maximum

Get the full file name of the current executable on Unix

Fetch a web page using C

Generate a Fibonacci series in C

Detecting FILE * buffering

Detecting whether a file is seekable

Find a substring of a string in C

C implementation of the Fisher-Yates shuffle

C programming language forum

An example of Cairo and FreeType in C

C function pointer to function with varying number of arguments

Get the file number associated with a FILE pointer

Get the size of a file in C

Example of getopt in C

Read a compressed file with gzFile, gzopen, and gzread in C

C example program for hello world

HTTP status codes as C defines

An example of iconv

Example of C if statement

Compare strings ignoring case in C

An example of an inline qsort

Example of insertion sort in C

Convert an IP address to an integer in C

Join an array of strings to a single string

Algorithm to convert katakana to hiragana in UTF-8

Find the largest of n numbers in C

Calculate the Levenshtein edit distance in C

Print system limits from limits.h

C macros __LINE__, __FILE__ and __func__

List the files in a Unix directory with C

Parse and create HTTP format timestamps in C

An example of using malloc

Mathematical constants in C provided by math.h

An example of mmap for a read-only file

Negative numbers and the modulo operator in C

Open a file in C

Example program in C to detect palindromes

Web log timestamp to Unix epoch with strptime

An example of using pipe and fork in C

Set the modification time of a PNG

Create a PNG with text segments

An example of pointer arithmetic

Similarities and differences between pointers and arrays in C

Get a list of prime numbers in C

Print hexadecimal versions of numbers in C

Left-justify printf output

Print part of a string with printf

Example of quicksort in C

Example of random number generation in C

Example of reading a PNG file

Read a whole file into memory in C

Recursively list directories in C

Make a reentrant parser with Flex and Bison

Program to reverse a string without using the string library

Set and get environment variables in C

Simple C macros for the Test Anything Protocol

Example of a singly-linked list in C

Split a C string on whitespace

SQLite C example: bind data

SQLite C example: insert data

SQLite C example: select data

C string libraries

The C string library

Convert a string to a double in C

Convert a string to an integer in C

Strip leading and trailing space in C

Stupid mistakes in C programming

Example of C switch

Test the size of integers in the preprocessor

Useful tools for C programmers

Example of typeof to make a "swap" macro.

An example of ualarm and setjmp

A C Unicode and UTF-8 library

An example of using regular expressions in C

Programming UNIX Sockets in C - Frequently Asked Questions

An example of using va_copy

Web sites about C

Write a PNG file using C and libpng

Xlib window which tells its own position and size

Responding to resize events with Xlib

A simple text window using Xlib

Responding to window deletion messages from the window manager

Open and read a gzip compressed file with zlib in C

An example of compressing with zlib in C

Perl Cairo tutorial

How to clear a <canvas>

A simple scribbler using <canvas>

Compressing CGI output with Perl

Compressing CGI output with Perl and Gzip::Faster

Using Unicode in a Perl CGI script

The Common Gateway Interface

Convert Chinese to PinYin

A rubber for cleaning toilets

Requesting compressed content from a web server with LWP::UserAgent

Make a Cygwin shortcut to ssh with XWindows

Running an X server on Windows from Cygwin with a Japanese keyboard

MySQL versus SQLite

Baking soda water dissolves kitchen grease

A broken air conditioner

Changing the rubber valve in an Inax toilet

Changing the float mechanism in an Inax toilet

Dog house and enclosure made from pipes and a table

Heated dog kennel

Replacing the nose pads on my glasses

Motor problems with a Ryobi GS-2000

Japanese pipe and connector sizes

Changing shoji paper

Low pressure in sink's cold water supply

Emergency repairs to a sunroom roof

Changing the syphon and tank packing in a toilet

Line voltage and phase voltage in three phase electricity

Draw a coloured graph of three phases

Three-phase motor questions

Add Emacs to the Windows file menu

Bind the key combination control-shift-enter in Emacs lisp

Some ways to customize cperl mode

Emacs commands which have recently changed

Set Go tab width to four rather than eight

Removing the leading asterisk from JavaScript comments in Emacs

Convert a program to markdown in Emacs lisp

Setting the default font in Emacs

"Boilerplate" for new Perl files in Emacs

Perl and Emacs regular expressions compared

Make Emacs the default program for text files on Windows

A list of English words for numbers

Error list for Moby project's mhyph.txt

Errors in the Moby mpron list

English language resources on the world-wide web

Errata for "Differential Geometry of Curves and Surfaces" by Do Carmo

Faster, Pussycat! Kill! Kill!

My IMDB reviews

What causes pip in poultry?

Common tasks with Flex

There has never been a more finely-tuned breakfast cereal

Tropicana Fruit Sweets: Orange with Rare Cheese Flavor

Extract some of the files from a dump using restore

Find the source code of a library function in FreeBSD

Using gnome-terminal on FreeBSD

How to install and start MySQL server 5.6 on FreeBSD 10.0

Get information on network interfaces in FreeBSD

Example of ptrace for FreeBSD

Get a list of packages with no dependences in FreeBSD

Conspiracy theory generator

Fake silly comment generator

Othello board in JavaScript

Amend a commit message with git

Delete a remote repository

Set up a global .gitignore for Github for Windows

List files which are and are not under version control

Remove deleted files from Git's index

Remove files from Git's index without deleting the actual file

Remove files in .gitignore from version control

How to split a git repository

Some tasks using Git version control

Array of different types

C and Go equivalents

Cgi and file server

Standardise Go function comments

Dealing with zero-length non-empty form values in Go

Make an error from a string in Go

Generate gaussian

Get the first rune of a string in Go

Gzip handler in Go

Example of converting hexadecimal to integer in Go

Example of converting hiragana to katakana in Go

Initialise and evaluate a map from strings to strings in Go

Example of initializing an array of strings in Go

Line directives in Go

map of list of strings

Put a JSON object into map[string]string directly in Go

Override the mime type of the Go HTTP file server

Perl and Go equivalents

Read a tab-separated file into a map

Read a file into an array of lines in Go

Redirect os.Stderr in Go

Regexp replace pattern

Convert a rune to a string in Go

Removing elements from the middle of a slice

Sort an array of strings by length

A file server with sorted directory listing in Go

Stopping a web server using a web request

An example of a struct in Go

Substitute a URL in text using a regular expression

Template glob funcs

Testing for an undefined string in Go

Example of converting utf8 to a rune (integer)

Example of looping over runes in a string in Go

Get a varargs-like vprintf or vfprintf in Go

Example of a Go program which reads URL parameters and prints them out

Simplest example of web server printing "Hello world" in Go

Black melon bread, Afro Tanaka and Debito Arudou

Shelton on Natto

Shelton on Teaching English

Shelton on Recycling in Japan

Illustrations directory

Convert X bitmaps (.xbm) to PNG - example of Pozkanzer tools

Make HTML image tags from a list of graphics files

The <image> HTML tag

An example where the Kullback-Leibler divergence breaks the triangle inequality

Entropy of discrete probabilities in Perl

Information theory bookmarks

Where to buy large-sized shoes in Japan

Was the Bristol Beaufighter referred to by Japanese soldiers as the "whispering death"?

Use of "daidai" compared to "orange" for the colour in Japanese

Find dates in Japanese text

English pronunciations of Japanese words

A list of kanji with negative meanings

Some examples of Japanese braille or "tenji"

Check textarea with JavaScript before closing a window

Dynamically created tables in Internet Explorer

Dump DOM with JavaScript

Flood-It game in JavaScript

Secrets of the JavaScript ninjas

Showing the modified time of an HTML page using JavaScript

How to install the Perl module "JavaScript" on Unix

Display the time in the user's time zone

Records of inappropriate access to websites

My list of referrer-spammers

Find out what functions are in a shared library

Add the location of a shared library when compiling

Exit the Lynx browser without the "Are you sure" message

What is the largest lathe in the world?

Is the matrix 1101 diagonalisable?

Sum of a to the n formulas

Approximate length of a cubic bezier curve

Mathematical expressions in Japanese high school entrance exams

Calculating the (7, 4) Hamming code

Errata for Linear Algebra by Serge Lang, 3rd edition

Approximations for log (n choose r)

Out of copyright mathematics books

Testing Stirling's approximation

Rewriting a CGI url to a PNG

How to serve compressed HTML, JavaScript and CSS

How to rewrite all pages on a website to one page

How to create and delete databases and tables in MySQL

How to manage a MySQL database

How to manipulate MySQL tables

How I moved my MySQL database on FreeBSD

MySQL saving database to a file and reinserting

Google Chrome mysteriously speeds up after Windows Task Manager is selected

What is the number of electric motors in the world?

How to block all internet traffic from China

Yamaha RTX1000 router

Setting up the Yamaha RTX1200

Search for unusual errors in an Apache log file

Convert binary64 (IEEE 754 double) to Perl

Demonstrating the log inequalities with Octave

Normal probability distribution in Octave

Listing available typefaces with Pango

Some biographies of Enrico Fermi

My experiences in Israel

"I was a soldier of the Emperor" - the story of James B. Harris

My recollections of Keith Floyd

Memories by Phyllis Bullock

My middle name "Kasmin"

William Shatner - the man who knows

reCAPTCHA example in Perl

Script to check a "Changes" file

Make a list of colours with HTML::Make

Installing Compress::Zstd on FreeBSD

How to convert colours from RGB to hue values

Copy chmod permissions from one file to another

CPAN modules for dealing with the Japanese language

Making generic links to search.cpan.org

Useful tools for CPAN

Create a CSS sprite from smaller images using Perl and Image::Magick

Generating the illustration for Damerau-Levenshtein explained

How to include data in a Perl distribution

Delete .xvpics directories safely

Perl code to detect googlebot from CGI

Visit all cells in an Excel worksheet

Turn a number into an Excel column name

Example of Text::Fuzzy for fuzzy searches on kana

Extract the exported variables from a Perl module

A simple guide to ExtUtils::MakeMaker

FastCGI Perl modules

Perl modules to find the MIME type of a file

Print sizes of all images in a directory

Get the last day of a month

Get QR code data from a png scalar

Handy Perl modules

What's the difference between a hash and hash reference in Perl?

Hash reference and hash copy in Perl

Perl modules to remove HTML tags

A basic example of parsing HTML in Perl

Installing ImageMagick on FreeBSD with a non-system Perl

IPC::Run3 for testing binaries

Print a list of numbers in Japanese kanji, hiragana and romaji

Size comparison of compressed JSON and original PNG image

Convert JSON to HTML with JSON::Parse and HTML::Make

Converting songs to romaji - example of Lingua::JA::Moji and Convert::Moji

Stopping indexing with ExtUtils::MakeMaker

Match a dictionary against a string

Perl modules for checking memory

Debugging message routine with line directives

Put metacpan links and abstracts in your github repositories

The files in a Perl module

Print the versions of installed Perl modules

Move a bunch of videos into directories based on their names

Wikipedia article titles in different languages

A Perl module which switches off some warnings

Modules for finding Perl dependencies

Equivalents in JavaScript and Perl

A mod_speling using Perl and CGI

Unicode numbers are not numeric in Perl

Equivalents in Perl and Octave

Equivalents in Perl and Python

Make a retrospective Changes for a CPAN distribution

Perl tutorial for beginners

Tutorial on Perl and Unicode

Get the Unicode value of a character in Perl

Perl XS modules and CPAN testers

Using a C structure as a Perl object with XS

Using Unicode with Perl XS

HTML blocks in Perl aren't well supported

Make a random IP address in Perl

Get the line number of a regex match

Remove unnecessary #include headers from C files

How to decode broken doubly-encoded UTF-8 in Perl

Remove trailing if statements from Perl code

Bugs in rt.cpan.org

Run a Perl interpreter from Microsoft Word

Having a method with the same name as a builtin

Send an HTTP OPTIONS request

How to set the bug tracker in your CPAN Perl module

How to skip tests with Test::More

Split pod documentation from a Perl module

Using Perl's Unicode encoding with the template toolkit

A simple spell checker in Perl

Tie Perl variables for debugging

How to install Perl on a Unix system

Get the day of the week from a year, month and day

Listing Windows processes with Win32::Process::List

Switching Win32::OLE to UTF-8

The meaning of the -x file test on Windows

An example of dying with a hash value in Perl XS

Download a YouTube video using Perl

Examples of right-to-left writing in Japan

Equations of motion

Ohm's law calculator

Extract Dilbert image from MacKay file

Regex for charset from an HTML page's meta tag

Behind Her Eyes

Common tasks in SQLite

A star pattern in SVG

Orange slice puzzle in SVG

A script to quieten LuaLaTeX

Damerau-Levenshtein Edit Distance Explained

An extension of the String-to-String Correction Problem

An old Japanese tool bag

Baker's percent calculator

Basal metabolic rate (BMR) calculator

Convert numbers to Chinese

Convert a CIDR format to an IP address range

Day-of-week calculator

Calculate the number of days between two dates

Geolocate an IP address

Convert an IP address range to CIDR format

Handwritten kana input

Turn numbers into English

Turn numbers into Spanish

Strip diacritics from text

Convert hexadecimal Unicode representations, with repairs

Your browser's and window's dimensions

Mario Kart Wii English & Japanese names / マリオカートWiiの英語と日本語名前比較

The mysterious case of the missing Base64 library

What characters are illegal in a Unix filename?

Search for files looking for a particular pattern

Find files which are newer than a certain date

Add line numbers to a text file in Unix

What is /usr/share/man/man1aout?

A simple PNG viewer for XWindows

A simple CGI sendmail script

A dictionary of troff commands

Websites with collections of free images

Perl's utf8 and file names on Windows

No more moves! in Microsoft Patience game

Windows and Unix command line equivalents

Emacs's control-K in Microsoft Word

Get paragraphs from a Word document using Perl

List of X window colours

Handling errors in Perl XS modules

Get a hash value using XS

Perl XS tutorial - digest version

An example of using regular expressions in Perl XS

Meaning of "Use of uninitialized value in subroutine entry"

XS Introduction

Memory management in Perl XS

A variable-length list of arguments in Perl XS

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