Implemenation of 'ex' API - portable os and io extension functions
C Lua
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cmake Updated lua macros Aug 20, 2012
COPYRIGHT Correct email address. Jun 26, 2009
Changelog initial checkin May 26, 2007
INSTALL initial checkin May 26, 2007
JUST initial checkin May 26, 2007
TODO git-svn-id: 92337893-263… May 26, 2007
ex.def build: add CMakeLists.txt and related files Mar 28, 2011
test.lua add basic tests Apr 27, 2012


"ex" API implementation
Copyright 2007 Mark Edgar < medgar at gmail com >

-- Environment
os.getenv(name) -- get environment variable
os.setenv(name, value) -- set/unset environment variable
os.environ() -- returns a copy of the environment

-- File system
cwd = os.currentdir()

for entry in os.dir(pathname) do ; end
entry = os.dirent(pathname)
  entry is a table, containing at least the following keys:
  name: the filename
  type: "file" or "directory" or another implementation-defined string
  size: the file size in bytes

-- Locking and pipes
file ="filename", "w")
file:lock(mode, start, length) -- mode is "r" or "w", start and length are optional
file:unlock(start, length) -- start and length are optional
in, out = io.pipe()

-- Process control
os.sleep(seconds) -- sleep for (floating-point) seconds
os.sleep(interval, unit) -- sleep for interval/unit seconds
pid = os.spawn(filename, {args={}, env={}, stdin=file, stdout=file, stderr=file})
exitcode = pid:wait(pid)