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LaTeX: internal optimizations and comments

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This commit is contained in:
Jean-François B 2022-06-29 23:18:58 +02:00
parent d089b5c92d
commit 2566f6e757
1 changed files with 18 additions and 8 deletions
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26
sphinx/texinputs/sphinxlatexliterals.sty
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@ -111,7 +111,11 @@
\hskip\@totalleftmargin
\hskip-\fboxsep\hskip-\fboxrule
% MEMO: \color@b@x from xcolor.sty is identical with the one from color.sty
\color@b@x {\spx@CustomFBox{#1}{#3}{#4}}{\color{#2}}{{\normalcolor#5}}%
% MEMO: the thing with \set@color is to avoid a \color@b@x feature of
% inserting twice the background color in the pdf color stack
\color@b@x {\spx@CustomFBox{#1}{#3}{#4}}%
{\def\set@color{\let\set@color\spx@original@set@color}\color{#2}}%
{{\normalcolor#5}}%
\hskip-\fboxsep\hskip-\fboxrule
\hskip-\linewidth \hskip-\@totalleftmargin \hskip\columnwidth
}%
@ -284,23 +288,29 @@
% (cf \spx@verb@@PreProcessLine; refs: #8686)
% MEMO: formerly we did something with \fboxsep in relation to the LaTeX
% bug graphics/4524 for \colorbox, but as we don't use \colorbox...
\setbox\z@\hbox{\sphinxVerbatimFormatLine{#1}}%
% MEMO: the #1 has a \strut so the colored background will have correct
% dimensions
\setbox\z@\hbox{#1}%
% MEMO: \colorbox would lead to \color{sphinxVerbatimHighlightColor}
% plus \color@block, which results in doubled (a color.sty feature)
% color command send to device driver and more importantly has
% a "color pop" which will be after \box\z@. We avoid that for reasons
% mentioned above.
{%
\def\set@color{\let\set@color\spx@original@set@color}%
% will only set \current@color
% will only set \current@color and delay the \set@color to \color@block
% as this all happens inside fancyvrb nested \hbox'es.
\color{sphinxVerbatimHighlightColor}%
% will use \current@color and pop it **before** \box\z@
\color@block{\wd\z@}{\ht\z@}{\dp\z@}\box\z@
}%
% we added a group only for \FV@RightListNumber not be influenced by the
% \current@color, if \fvset has been used to set numbers to the right.
}%
% MEMO: fancyvrb has options obeytabs and tabsize. Anyhow tab characters
% do not make it to the tex file, they have been converted to spaces earlier.
% But, if this was not the case, the support would be implemented here via
% \newcommand\sphinxVerbatimFormatLine[1]{\hb@xt@\linewidth{\FV@ObeyTabs{\strut #1}\hss}}%
\newcommand\sphinxVerbatimFormatLine[1]{\hb@xt@\linewidth{\strut #1\hss}}%
% MEMO: formerly we did \hb@xt@\linewidth{\strut #1\hss}, but there is now
% not much to do as since \spx@verb@@PreProcessLine this #1 is simply
% \box\spx@verb@tempboxb\strut
\newcommand\sphinxVerbatimFormatLine[1]{#1}%
% The next two macros are a deep hack of fancyvrb.sty core line processing in
% order to wrap too long lines, either at spaces and natural break-points,
% (soft wrap) or optionally at any character (hard wrap). This requires deep