File date/time?

[Ron Jeffries]

is there a way to get the date and time of a file? Looking through io
and os, I don't see one.

Thanks!

[Tom Skwara]

No way in the current version :(

Good news however:  a new [built-in] toolbox is on its way called LFS Toolbox!

The Lua File System Toolbox offers access to the underlying iLuaBox directory structure and file attributes.  Included are:

• File attributes (i.e. time of access, modification, etc.)
• File locking, unlocking, touching
• Directory create, remove, change current, lock, unlock
• A few extras...

This should also help with your earlier request relative to version control :)

 

Tom Skwara

MobileApp Systems

[Ron Jeffries]

Hello, Tom. On Monday, March 14, 2011, at 11:54:35 AM, you wrote:

> Good news however: a new [built-in] toolbox is on its way called LFS Toolbox!

> The Lua File System Toolbox offers access to the underlying
> iLuaBox directory structure and file attributes. Included are:

> File attributes (i.e. time of access, modification, etc.)
> File locking, unlocking, touching
> Directory create, remove, change current, lock, unlock
> A few extras...

Great news ... is it time to start holding our breath yet? :)

Ron Jeffries
www.XProgramming.com
Working in a team room reduces significant interruptions
by making most interruptions very insignificant.

[Tom Skwara]

v1.2.1 is still in review [ugh...]

The version following 1.2.1 contains at least the following:

- LFS Toolbox (built-in)

- Speech Toolbox (In-App purchase)

- Customizable keyboard shelf (iPad only)

While I don't advise holding ones breath [just yet], these features are complete!  Docs are now getting some fit-and-finish...

Tom Skwara

MobileApp Systems

[dave]

Tom;

Will there be anything to allow writing to / reading from a memory
card plugged into the iPad.

Dave.

> > by making most interruptions very insignificant.- Hide quoted text -
>
> - Show quoted text -

[Tom Skwara]

Only access to the Documents directory of iLuaBox's sandbox is permitted [at this time].

This is a backed up directory.

Tom Skwara

MobileApp Systems

[ronjeff...@gmail.com]

Backed up? What does this mean to the likes of me? Can we recover from it? What and how?

Thanks,

R

[Tom Skwara]

iTunes backup/restore will include files in an applications 'Documents' directory.

Tom Skwara

MobileApp Systems

[Ron Jeffries]

Hello, Tom. On Wednesday, March 16, 2011, at 9:44:58 AM, you
wrote:

> iTunes backup/restore will include files in an applications
> 'Documents' directory.

Ah, I see. I thought you meant backed up inside iLuabox ... thanks!

Ron Jeffries
www.XProgramming.com
I try to Zen through it and keep my voice very mellow and low.
Inside I am screaming and have a machine gun.
Yin and Yang I figure.
-- Tom Jeffries

[Tom Skwara]

Just as a sidebar to backing up, iLuaBox 1.2.1 includes a user data persistence mechanism.  Until that goes up on the App Store, I've included the new 'ilua.lua' file listing below that can be used right now.  Just add a call to 'dofile('ilua.lua') at the end of 'extras.lua' .  Hopefully the file comments are clear enough, but feel free to ask questions.

Tom Skwara

MobileApp Systems

-- ilua.lua

-- This file is executed with the global "ilua" table already defined

-- serialization support function

function ilua.basicSerialize (o)

  if type(o) == "number" then

    return tostring(o)

  else   -- assume it is a string

    return string.format("%q", o) end

end

-- save a table to current I/O stream

function ilua.saveTable (name, value, saved)

  saved = saved or {}                 -- initial value

  io.write(name, " = ")

  if type(value) == "number" or type(value) == "string" then

    io.write(ilua.basicSerialize(value), "\n")

  elseif type(value) == "table" then

    if saved[value] then              -- value already saved?

      io.write(saved[value], "\n")    -- use its previous name

    else

      saved[value] = name             -- save name for next time

      io.write("{}\n")                -- create a new table

      for k,v in pairs(value) do      -- save its fields

        k = ilua.basicSerialize(k)

        local fname = string.format("%s[%s]", name, k)

        ilua.saveTable(fname, v, saved)

      end

    end

  else

    error("cannot save a " .. type(value))

  end

end

-- Users can add fields to 'ilua._DATA' table

-- as-needed for perstistent storage between sessions.

-- Supported types include number, string, and table.

-- User must call 'ilua.saveData' function to save data

-- as a script file named 'data.lua'.  The 'ilua._DATA'

-- table  is recreated by calling 'ilua.loadData' or by

-- simply executing 'data.lua'. 

function ilua.saveData()

  ilua._DATA = ilua._DATA or {}

  local f = io.open("data.lua", "w")

  io.output(f)          -- prepare to write

  io.write("-- data.lua\n\n")

  ilua.saveTable("ilua._DATA", ilua._DATA)

  f:close()

  io.output(io.stdout)  -- restore stdout

end

-- load the ilua._DATA table from file 'data.lua' 

function ilua.loadData()

  local f = io.open("data.lua", "r")

  if f == nil then      -- does file exist?

    ilua.saveData()     -- create if necessary

  else

    f:close()           -- close existing file

  end

  io.input(io.stdin)    -- restore stdin

  dofile("data.lua")    -- run the script

end

-- instantiate ilua._DATA table from file 'data.lua'

ilua.loadData()