Hi,
there is a \ifnofloatcaption test missing to prevent the counter to increase
when captions are hidden with the “none” keyword.
\unprotected\def\float_place_packaged_boxes
{\bgroup
\ifconditional\usesamefloatnumber
\globallet\currentfloatnumber \previousfloatnumber
\globallet\currentfloatattribute \empty
\globallet\currentfloatsynchronize\relax
\else
- \ifnofloatnumber \else
- \doincrementsubstructurecounter[\@@thestructurecounter\currentfloat][1]%
- \fi
+ \ifnofloatnumber \else \ifnofloatcaption \else
+ \doincrementsubstructurecounter[\@@thestructurecounter\currentfloat][1]%
+ \fi \fi
\dostructurecountercomponent
{float}%
\setupcurrentfloatcaption
\floatcaptionparameter
\detokenizedfloatcaptionparameter
\relax
\relax
\relax
[\c!name=\currentfloat,%
\s!counter=\@@thestructurecounter\currentfloat,%
\s!hascaption=\ifnofloatcaption \v!no\else\v!yes\fi,%
\s!hasnumber=\ifnofloatnumber \v!no\else\v!yes\fi,%
\s!hastitle=\ifemptyfloatcaption\v!no\else\v!yes\fi]%
[]%
\globallet\previousfloatnumber \laststructurecounternumber
\globallet\currentfloatnumber \laststructurecounternumber
\globallet\currentfloatattribute \laststructurecounterattribute
\globallet\currentfloatsynchronize\laststructurecountersynchronize
\fi
%
\global\setfalse\usesamefloatnumber % one shot
% check float box
\float_set_natural_dimensions\nextbox
\global\setbox\floatbox\vbox{\floatparameter\c!command{\box\nextbox}}%
\float_set_natural_dimensions\floatbox
\ifdim\htdp\floatbox=\zeropoint
\showmessage\m!floatblocks{11}\empty
\global\setbox\floatbox\vbox
{\dostarttagged\t!floatcontent\empty
\float_place_empty_box
\dostoptagged}%
\fi
% deal with lack of caption
\global\setbox\floatbox\vbox \floatcaptionattribute
{\doifelsemainfloatbody\currentfloatsynchronize\donothing
\unvbox\floatbox
\ifnofloatcaption
\vss
\fi}% gets rid of the depth (unless tabulate)
\egroup
% place the float
\float_set_box
\float_get_box
\global\insidefloatfalse}
\starttext
\placefigure{First}{\framed{One}}
\placefigure[none]{Second}{\framed{Two}}
\placefigure{Third}{\framed{Three}}
\stoptext
Wolfgang
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