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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Newsgroups: comp.lang.ada
Subject: Re: text_io and grid printing
Date: Thu, 17 May 2018 21:57:04 +0300
Organization: Tidorum Ltd
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Xref: reader02.eternal-september.org comp.lang.ada:52404
Date: 2018-05-17T21:57:04+03:00
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On 18-05-17 19:43 , Jeffrey R. Carter wrote:
> On 05/17/2018 04:51 PM, Mehdi Saada wrote:
>> I wanted to use set_col and set_line to print things as in a grid, (to
>> print a matrix) but it seems I was wrong ?
>> Set_Col (1); Put ("1"); Set_Col (2); Put ("2"); Set_Col (3); Put ("3");
>> Gives "123"
>> but Set_Col (2); Put ("2"); Set_Col (1); Put ("1"); Set_Col (3); Put
>> ("3");
>> gives
>>   2
>> 1 3
>
> It's probably best to forget that Text_IO has those operations.

I find Set_Col convenient for simple tabular output, even if it has to 
be used in increasing column order. But very weak compared to eg. HTML 
tables, of course. I don't remember ever using Set_Line.

HTML output is a good compromise, IMO. I often use the XML EZ_Out 
package from www.mckae.com. But it, too, requires the program to 
generate table cells in left-to-right, top-down order.

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
       .      @       .