Structured LOG files

[David Carlisle]

On Thu, 9 May 2019 at 16:49, Paulo Ney de Souza <pauloney at gmail.com> wrote:

>
>
> On Thu, May 9, 2019 at 2:48 AM Peter Flynn <peter at silmaril.ie> wrote:
>
>> On 08/05/2019 10:40, Paulo Ney de Souza wrote:
>> >     ...
>> >     [45]
>> >     Overfull \hbox (4.49274pt too wide) in paragraph at lines 1718--1719
>>
>> The closing square bracket after the page number means the page was
>> successfully shipped out to the output file. This means the overfull
>> \hbox occurred on p.46.
>>
>
>
> Unfortunately that is NOT completely accurate.
>
> Here is an example of an overfull that sits on page 12, and --by your
> rule-- should have been on page 11. Included are the snapshot and relevant
> part of the LOG file:
>
> [image: Screenshot from 2019-05-09 08-37-07.png]
>
> LaTeX Warning: `h' float specifier changed to `ht'.
>
> [10]
> Overfull \hbox (47.79521pt too wide) detected at line 121
> []\LMP1/mtt/m/it/10 B[] \LMP2/mtt/m/n/10 D [] \LMP1/mtt/m/it/10 ;
>  []
> Underfull \vbox (badness 3954) has occurred while \output is active []
>  [11]
> Overfull \hbox (9.02118pt too wide) in paragraph at lines 153--154
> []\TU/TimesNewRoman(0)/bx/n/10 Exercício 8. []\TU/TimesNewRoman(0)/m/it/10
> Inte
> rprete geometricamente a “fixação” dada acima pelas matrizes
> $\LMP1/mtt/m/it/10
>  B[]; B[]; B[]$\TU/TimesNewRoman(0)/m/it/10 .
>  []
> [12]
> Overfull \hbox (1.54982pt too wide) in paragraph at lines 173--174
> []\TU/TimesNewRoman(0)/bx/n/10 Exercício 10.
> []\TU/TimesNewRoman(0)/m/it/10 De
> que maneira podemos escolher os valores $\LMP1/mtt/m/it/10 ![]
> \LMP2/mtt/m/n/10
>  2 \LMP1/mtt/m/it/10 ^^8c0; 2^^Y^^8d$\TU/TimesNewRoman(0)/m/it/10 ,
> $\LMP1/mtt/
> m/it/10 i \LMP2/mtt/m/n/10 D \LMP1/mtt/m/it/10 4; [] ;
> n$\TU/TimesNewRoman(0)/m
> /it/10 ,
>  []
>
> Line 121 of the source is indeed the closing of the matrix formula above:
>
> 118 0 & 0 & 0 & 1
> 119 \end{array}
> 120 \right],  \label{mat_4d}
> 121 \end{equation}
> 122 Na última matriz, $i=4,\dots,n$.
> 123
> 124 Usando as matrizes acima e fixando os valores $d_{1,2},d_{2,3}
>
>
> Does anyone know (accurately) the way overfull's and pages numbers are
> reported to the LOG file?
>
> Paulo Ney
>
>
>
The items in the log appear in a natural order if you view it from TeX's
perspective....



page 10 was shipped out:
log: [10]

tex resumes adding material to the main vertical list, finds an over full
box:
log:  Overfull \hbox (47.79521pt too wide) detected at line 121

tex struggles to make a good break for the next page so needs to leave page
11 short
log:  Underfull \vbox (badness 3954) has occurred while \output is active

page 11 shipped out;
log: [11]

the remaining items on the main vertical list including the overfull math
display are  then carried over on to the "recent contributions" so will
appear on page 12 (or later)

Not enough material is carried over to fill a page so tex process more to
add to the main vertical list encountering another overfull line
log: Overfull \hbox (9.02118pt too wide) in paragraph at lines 153--154

page 12 shipped out
log: [12]

David
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