Re: Error reporting

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Hi

To put this argument, and that line into context, here is the modified code, I found this quite readable, after 2 years of not looking at it, but had changed something in another part, which of course had its knock on effects. Despite not having looked at this part for 2 years took me 2 minutes to understand again.

------------------------------------------------------------------------------------ 
function price_increase() 
------------------------------------------------------------------------------------ 
sequence cmd, data, category_list, result, 
        prod_list,                        --the list of products to apply price rises too  
        price_list, tmp,                      --contains prices only for listed products, [1] original [2] percentage inc [3] new price 
        display_list 
atom percentage 
integer choice, current_choice 
 
--choose categories to apply price increases too 
category_list = call_func(rid_category_list, {})        --in reports.ex 
 
--check for un categorised products 
VOID = check_uncategorised() 
 
if length(category_list) = 0 then return 0 end if 
 
cmd = "SELECT * FROM Products WHERE type LIKE 'S%'" 
data = query_database("xprods.sql", cmd) 
 
if length(data) = 0 then return 0 end if 
 
 
prod_list = {} 
for i = 2 to length(data) do 
        data[i] = data_validate_product(data[i]) 
        if length(data[i][PROD_CATEGORY]) > 0 then 
                for j = 1 to length(category_list) do 
                        if length(category_list[j]) > 0 then 
                                if category_list[j][1] = data[i][PROD_CATEGORY][1] then 
                                        prod_list = append(prod_list, data[i]) 
                                end if 
                        end if 
                end for 
        end if 
end for 
 

Thanks to Matt for enhancing the error reporting, which even if everyone writes code in plain English, will still catch those occasions where there might a touch of laziness and brevity in the case of the programmer.

Chris

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