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1

I'm using this (old) Lua module to save and access tables from local files (if there is a better way, please shout I'm not invested) -- https://github.com/gideros/table.save/blob/master/table.save-0.94.lua

It's been working great, but now I'm trying to save key value pairs I'm getting the error:

attempt to call global exportstring (a nil value)

I'm new to Lua. The error is on line 108 on that file I linked to. Any ideas?

I've tried creating blank tables, or basic tables without key value pairs, this works fine. It's when I come to insert strings the issues arise.

This will work:

local myTable = 
myTable[0] = 2
inputOutputTable.save(myTable, "testytesty")
local testy = inputOutputTable.load("testytesty")
print("Testing 123... " .. testy[0])

However this wont:

local myTable = 
myTable["welcome"] = "1"

I get : attempt to call global 'exportstring' (a nil value)

Expected results - it saves the table.

What happens - it throws the error.

lua

share|improve this question

edited Mar 27 at 18:20

Egor Skriptunoff

17.6k22 gold badges2525 silver badges5757 bronze badges

asked Mar 27 at 17:51

TortexTortex

10311 silver badge1111 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I see "Lua 5.1 compatible" on that github page. What is your Lua version?
  
  – glenn jackman
  Mar 27 at 18:41
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  _VERSION says 5.1
  
  – Tortex
  Mar 27 at 19:10
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You might want to abandon this. The code references lua-users.org/wiki/SaveTableToFile which references TableSerialization which has loads of options
  
  – glenn jackman
  Mar 27 at 19:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  exportstring is some side function which is required (non-standard for lua).
  
  – val
  Mar 27 at 20:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I can't reproduce your problem. Perhaps you inadvertently introduced the problem when putting the functions in the inputOutputTable table instead of the table table? The scope of exportstring is controlled by a do end block, it is required by both the save and load functions. A misplaced end could make it unavailable to one of the functions. (If you compiled/loaded the linked file as is, exportstring should not be a global access anyway.)
  
  – tehtmi
  Mar 28 at 6:18
  

  
  
  
  

 | 
show 1 more comment

1

I'm using this (old) Lua module to save and access tables from local files (if there is a better way, please shout I'm not invested) -- https://github.com/gideros/table.save/blob/master/table.save-0.94.lua

It's been working great, but now I'm trying to save key value pairs I'm getting the error:

attempt to call global exportstring (a nil value)

I'm new to Lua. The error is on line 108 on that file I linked to. Any ideas?

I've tried creating blank tables, or basic tables without key value pairs, this works fine. It's when I come to insert strings the issues arise.

This will work:

local myTable = 
myTable[0] = 2
inputOutputTable.save(myTable, "testytesty")
local testy = inputOutputTable.load("testytesty")
print("Testing 123... " .. testy[0])

However this wont:

local myTable = 
myTable["welcome"] = "1"

I get : attempt to call global 'exportstring' (a nil value)

Expected results - it saves the table.

What happens - it throws the error.

lua

share|improve this question

edited Mar 27 at 18:20

Egor Skriptunoff

17.6k22 gold badges2525 silver badges5757 bronze badges

asked Mar 27 at 17:51

TortexTortex

10311 silver badge1111 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I see "Lua 5.1 compatible" on that github page. What is your Lua version?
  
  – glenn jackman
  Mar 27 at 18:41
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  _VERSION says 5.1
  
  – Tortex
  Mar 27 at 19:10
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You might want to abandon this. The code references lua-users.org/wiki/SaveTableToFile which references TableSerialization which has loads of options
  
  – glenn jackman
  Mar 27 at 19:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  exportstring is some side function which is required (non-standard for lua).
  
  – val
  Mar 27 at 20:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I can't reproduce your problem. Perhaps you inadvertently introduced the problem when putting the functions in the inputOutputTable table instead of the table table? The scope of exportstring is controlled by a do end block, it is required by both the save and load functions. A misplaced end could make it unavailable to one of the functions. (If you compiled/loaded the linked file as is, exportstring should not be a global access anyway.)
  
  – tehtmi
  Mar 28 at 6:18
  

  
  
  
  

 | 
show 1 more comment

I'm using this (old) Lua module to save and access tables from local files (if there is a better way, please shout I'm not invested) -- https://github.com/gideros/table.save/blob/master/table.save-0.94.lua

It's been working great, but now I'm trying to save key value pairs I'm getting the error:

attempt to call global exportstring (a nil value)

I'm new to Lua. The error is on line 108 on that file I linked to. Any ideas?

I've tried creating blank tables, or basic tables without key value pairs, this works fine. It's when I come to insert strings the issues arise.

This will work:

local myTable = 
myTable[0] = 2
inputOutputTable.save(myTable, "testytesty")
local testy = inputOutputTable.load("testytesty")
print("Testing 123... " .. testy[0])

However this wont:

local myTable = 
myTable["welcome"] = "1"

I get : attempt to call global 'exportstring' (a nil value)

Expected results - it saves the table.

What happens - it throws the error.

lua

share|improve this question

edited Mar 27 at 18:20

Egor Skriptunoff

17.6k22 gold badges2525 silver badges5757 bronze badges

asked Mar 27 at 17:51

TortexTortex

10311 silver badge1111 bronze badges

local myTable = 
myTable[0] = 2
inputOutputTable.save(myTable, "testytesty")
local testy = inputOutputTable.load("testytesty")
print("Testing 123... " .. testy[0])

local myTable = 
myTable["welcome"] = "1"

share|improve this question

edited Mar 27 at 18:20

Egor Skriptunoff

17.6k22 gold badges2525 silver badges5757 bronze badges

asked Mar 27 at 17:51

TortexTortex

10311 silver badge1111 bronze badges

share|improve this question

edited Mar 27 at 18:20

Egor Skriptunoff

17.6k22 gold badges2525 silver badges5757 bronze badges

asked Mar 27 at 17:51

TortexTortex

10311 silver badge1111 bronze badges

edited Mar 27 at 18:20

Egor Skriptunoff

17.6k22 gold badges2525 silver badges5757 bronze badges

edited Mar 27 at 18:20

Egor Skriptunoff

17.6k22 gold badges2525 silver badges5757 bronze badges

asked Mar 27 at 17:51

TortexTortex

10311 silver badge1111 bronze badges

asked Mar 27 at 17:51

TortexTortex

10311 silver badge1111 bronze badges