Hi Branden,
On 2023-08-13 17:28, G. Branden Robinson wrote:
> Hi Alex,
>
> At 2023-08-13T17:19:59+0200, Alejandro Colomar wrote:
>> While trying to apply a patch that touches some table, I found an '.sp
>> 1' after a table.
>>
>> I tried removing it to see what it does, but it seems nothing changed.
>>
>> However, in the PDF version, there's some change (using .sp 1 produces
>> a larger space before the next section heading).
>>
>> Should we keep that thing, should we replace it by something else, or
>> should we remove it?
>
> I would take it out.
Okay. But I'd like to understand why Michael used it. Since we already
have a blank without it, why would have he added it? Or did 1.22.4 have
a bug that didn't produce that blank?
Here's what Michael's commit says:
# ".sp 1" ==> ensure a blank line before the next section heading
(c466875ecd64 ("Various pages: Improve formatting in ATTRIBUTES"))
> If you need vertical space after a table, use a
> paragraphing macro.
>
> The reason for the difference is this.
>
> groff_man(7):
>
> Horizontal and vertical spacing
> [...]
> Several macros insert vertical space: .SH, .SS, .TP, .P (and its
> synonyms), .IP, and the deprecated .HP. The default inter‐section
> and inter‐paragraph spacing is is 1v for terminal devices and 0.4v
> for typesetting devices. (The deprecated macro .PD can change this
> vertical spacing, but its use is discouraged.) Between .EX and .EE
> calls, the inter‐paragraph spacing is 1v regardless of output
> device.
>
> Does this help?
Yep, it explains the difference, although it doesn't explain why Michael
added it.
Cheers,
Alex
--
<http://www.alejandro-colomar.es/>
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