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title	Use a custom field for the input file name

Here we use ~/test.txt for the default location of the input file. Take a look at Custom Fieldsif you haven’t already.

You access the field with:

Code Block

language	lua

local FileNameF = component.fields()

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title	Read in the file using the FIL library with FILread

The FIL Library makes it really easy to inhale the file:

Code Block

language	lua

local Content = FILread("main.lua"F);

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title	Examine the file contents in the translator - each segment ends in \r but the message ends with \n characters

We can easily see this by looking at the contents of the file using escaped mode of:

The string viewing window

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title	Add some custom logging

Let’s add some Custom Logging

Just added lines 7 and 11 to the script:

Code Block

language	lua

function main(Data)
   local F = component.fields().InputFile
   trace(F)
   local Content = FILread(F)
   local List = Content:split("\n")
   trace(#List)  
   iguana.logInfo("#start About to queue "..#List.." messages");
   for i=1, #List do
      queue.push{data=List[i]}
   end
   iguana.logInfo("#end Finished queueing "..#List.." messages");
end

See Concatenating strings for more on the “..“ notation to bring strings together.

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title	And some custom status

See Custom Status

Code Block

language	lua

require "FIL.FILreadWrite"

function Status(N, Total)
   component.setStatus{data="Sending "..N.." of "..Total}  
end

function StatusDone(Total)
   component.setStatus{data="Completed sending "..Total.." messages."}
end

function main(Data)
   local F = component.fields().InputFile
   trace(F)
   local Content = FILread(F)
   local List = Content:split("\n")
   trace(#List)  
   iguana.logInfo("#start About to queue "..#List.." messages");
   for i=1, #List do
      Status(i, #List)
      queue.push{data=List[i]}
   end
   StatusDone(#List)
   iguana.logInfo("#end Finished queueing "..#List.." messages");
end

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