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37 lines
1.0 KiB
Plaintext
37 lines
1.0 KiB
Plaintext
"ex" API implementation
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http://lua-users.org/wiki/ExtensionProposal
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Copyright 2007 Mark Edgar < medgar at student gc maricopa edu >
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-- Environment
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os.getenv(name) -- get environment variable
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os.setenv(name, value) -- set/unset environment variable
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os.environ() -- returns a copy of the environment
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-- Miscellaneous
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os.sleep(seconds) -- sleep for (floating) seconds
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-- File system
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cwd = os.currentdir()
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os.chdir(pathname)
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os.mkdir(pathname)
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os.remove(pathname)
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for entry in os.dir(pathname) do ; end
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entry = os.dirent(pathname)
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--[[
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entry is a table, containing at least the following keys:
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name: the filename
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type: "file" or "directory" or another implementation-defined string
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size: the file size in bytes
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--]]
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-- Locking and pipes
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file = io.open("filename", "w")
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file:lock(mode, start, length) -- mode is "r" or "w", start and length are optional
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file:unlock(start, length) -- start and length are optional
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in, out = io.pipe()
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-- Process control
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pid = os.spawn(filename, {args={}, env={}, stdin=file, stdout=file, stderr=file})
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exitcode = pid:wait(pid)
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