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Lua Application Programming Helper Libraries
Lua
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docs
tests
BinaryStream.lua
BitBang.lua
CRC32.lua
CVec.lua
ColorSpace.lua
ColorsHollasch.lua
ColorsResene.lua
ColorsSGI.lua
FileStream.lua
Hashes.lua
LICENSE.txt
LuaState.lua
MD5.lua
MemoryStream.lua
Pixel.lua
README.md
TLS.lua
Vector.lua
aestable.lua
ascii.lua
bencode.lua
c99_types.lua
cctype.lua
ffi_stack.lua
httpheaders.lua
limits.lua
lua_ffi.lua
luxl.lua
maths.lua
memutils.lua
mime.lua
mimetypes.lua
printutils.lua
sha2.lua
stdc.lua
stream.lua
stringutils.lua
stringzutils.lua
strtoul.lua
utf.lua

README.md

LAPHLibs

Lua Application Programming Helper Libraries

This is a repository of things I have found to be useful while programming in LuaJIT.

In most cases, the routines use features that are very specific to the LuaJIT variant of Lua. In particular, the LuaJIT FFI feature is heavily used. This gives many of the routines a fairly familiar 'C' look and feel, but they take on some of the better characteristics of Lua, namely memory management.

This set of functions is constantly evolving as LuaJIT itself improves, as well as my own knowledge of how best to use it.

Current: Works against LUAJIT git HEAD as of 25/09/2012

ascii.lua

This file contains a table of the ASCII character set, with numeric values and descriptions. There are routines to create constant values from the table.

bencode.lua

Implementation of the bencode format, which is used to encode/decode torrent files.

BinaryStream.lua

A 'class' that can deal with reading and writing of binary values from/to a stream. You can configure the stream to deal with a big or little endian source.

BitBang.lua

Lowest level bit twiddling. Builds upon the bitops allowing the getting/setting of bit values within a larger array of values.

c99_types.lua

Helper support for types typically found in stdint.h

cctype.lua

Implementation of the isxxx() character classification functions typically found in the libc libraries. These routines operate on numbers, and return boolean values.

CRC32.lua

Implementation of a CRC32 routine

httpheaders.lua

A simple Lua table containing HTTP headers. The table contains information as to whether the header is used for requests, responses, or both. This simple table can be used directly, or turned into another form, depending on your requirements.

limits.lua

Values for various limits on numeric values

LUXL.lua

Implementation of very low level XML lexer/parser. This is not a conformant validating XML parser, but it's enough to get the job done on typical .xml configuration files, and many data streams.

This implementation does no memory allocations. It returns pointers and sizes as a result of the lexing activities.

MD5.lua

Implementation of the MD5 hash algorithm

MemoryStream.lua

Implementation of a streaming interface over a chunk of memory

memutils.lua

contains several routines that have C equivalents, such as memset, memcpy, memcmp, memchr, memmove. Also contains a few convenience functions related to dealing with chunks of memory.

mime.lua

Contains a table and function that maps between a file extension and the appropriate mime type.

mimetypes.lua

A simple Lua table which contains mime type information.

stringzutils.lua

Contains a set of functions that deal with null terminated strings. All the typical security hole opening functions such as strcpy, strcmp are there, as well as their marginally more secure counterparts such as strlcpy, and strlcat.

strtoul.lua

Turns a string value into a number value. Operates on a pointer to a string value, so it does not require the source to be a Lua String.

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