Re: help for newbie -- make an list-table where the key is integer and the value is a hash-table-record

[<8rfrpp+atpm98zz5xdp4@...>]

On 10/04/2017 01:58 AM, douglas mcallaster wrote:
> Would a kind soul please help me get started with a simple job task.
>
> Below job runs but returns the last record from my data file for all six lines
> in the data file.
> [...]
> for _,v in ipairs(rows)
>  do local   a    = '_'
>     local     b  =  0
>     local       c= '_'
>             a,b,c= string.match (v, "(%w+)|(%d+)|(%w+)") -- parse the line

You've made my day with this formatting style!

Probably minimal change to make your code work is move "cols = {}" inside
"for _,v in ipairs(rows)" cycle:

for _,v in ipairs(rows)
 do local   a    = '_'
    local     b  =  0
    local       c= '_'
            a,b,c= string.match (v, "(%w+)|(%d+)|(%w+)") -- parse the line
    print (a,b,c)
    cols= {}  -- a hash ie nam,val   -- use  pairs
    cols['v1']= a -- populate the hash (table)
    cols['v2']= b
    cols['v3']= c
    -- for kc,vc in pairs (cols) do print(kc,vc) end
    table.insert (dsn1, cols)
--  dsn1 [ #dsn1+1 ]=   cols -- gives same result: every row in dsn1 is the last
row from input file
 end


I'd highly recommend to consider snippets from Sean Conner or Russel Halley.





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