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%D \module
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%D   [       file=strc-itm,
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%D        version=2008.10.20,
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%D          title=\CONTEXT\ Structure Macros,
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%D       subtitle=Itemgroups,
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%D         author=Hans Hagen,
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%D           date=\currentdate,
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%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
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%C
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%C This module is part of the \CONTEXT\ macro||package and is
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%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
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%C details.
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\writestatus
{
loading
}{
ConTeXt
 
Structure
 
Macros
 
/
 
Itemgroups
}
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\registerctxluafile
{
strc
-
itm
}{}
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%D As we analyze/register widths and such we could as well push and pop the numbers
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%D at the \LUA\ end (which saves a few calls).
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%D
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%D Cleaning up this module happened around the time when Kate Bush came up with the
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%D nicest numbered list of words: 50 Words For Snow. It's therefore no surprise that
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%D I had that cd running several times when updating this code. One of the
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%D highlights of 2011.
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%D
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%D This module needs to be rewritten but that is tricky with respect to
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%D compatibilitity. Basically each major variant (regular, text, columns,
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%D horizontal, etc) needs to be on its own.
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% todo: check breaks
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% todo: check grouping
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% todo: fixedconversion
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% \startitemize[n,packed]
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% \item test \item test \item test
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% \stopitemize
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%
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% \startitemize[n,packed,reverse]
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% \item test \item test \item test
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% \stopitemize
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%
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% \startitemize[n,packed,reverse] \item test \item test \stopitemize
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% \startitemize[continue]
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% \item test \startitemize[n,packed] \item test \item test \stopitemize
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% \item test
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% \item test
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% \stopitemize
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% \startitemize[continue] \item test \stopitemize
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%
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% \startitemize[n,packed] \item test \item test \stopitemize
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% \startitemize[continue] \item test            \stopitemize
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% \startitemize[continue] \item test            \stopitemize
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%
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% \setupwhitespace[big]
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% \starttext
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%     test \startitemize[joinedup]                \item test \item test \stopitemize test \par
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%     test \startitemize[joinedup,nowhite]        \item test \item test \stopitemize test \par
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%     test \startitemize[joinedup,nowhite,before] \item test \item test \stopitemize test \par
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%     test \startitemize[joinedup,nowhite,after]  \item test \item test \stopitemize test \par
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% \stoptext
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%
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% test / example
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%
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% \startnarrower[left] \startcolumns[n=3] \startitemize
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% \item \input ward \item \input ward \item \input ward
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% \stopitemize \stopcolumns\stopnarrower \blank
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%
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% \startnarrower[left] \startitemize[columns,three]
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% \item \input ward \item \input ward \item \input ward
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% \stopitemize \stopnarrower \blank
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%
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% \setupitemize[leftmargin=1.5em] \startitemize[columns,three]
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% \item \input ward \item \input ward \item \input ward
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% \stopitemize \blank
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%
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% beware, we don't group (yet) as we want to keep the left/right skip
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%
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% \startitemize
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% \startitem \stopitem
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% some intermediate text that will properly indent
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% \startitem \stopitem
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% \stopitem
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%
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% so we need to keep that property
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%
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% \startitemize
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%   \starthead {xx} test \stophead
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%   \startitem test \stopitem
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%   \startitem test \stopitem
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% \stopitemize
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%
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% Sometimes the user demands get pretty weird:
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%
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% \startitemize
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%   \item test
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%   \item test
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%   \headsym{xx} test \par test
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% \stopitemize
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%
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% aligned items
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%
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% \startitemize[n,fit,broad][itemalign=flushright]
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%      \dorecurse{100}{\item The first item.}
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% \stopitemize
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%
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% \setupitemgroup[itemize][each][fit]
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% \setupitemgroup[itemize][each][distance=.5em,factor=1,itemalign=flushright]
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%
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% \startitemize[n]
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%      \dorecurse{100}{\item The first item.}
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% \stopitemize
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%
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% \defineitemgroup[gbitemize]
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% \setupitemgroup[gbitemize][each][headstyle=bold]
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%
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% \startgbitemize
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% \txt{italian} some italians like this kind of cross||breed between
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%   an itemize and a description
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% \txt{sicilians} i wonder how many sicilian mathematicians do a thesis
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%   on the math involved in predicting the next big bang of the vulcano
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% \stopgbitemize
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%
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% \startitemize[n,repeat]
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%     \noitem \startitemize[a] \item Item 1.a. \item Item 1.b. \stopitemize
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%     \noitem \startitemize[a] \item Item 2.a. \item Item 2.b. \stopitemize
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% \stopitemize
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%
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% \startitemize[n,repeat][width=0pt]
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%   \noitem \startitemize[a][width=2em] \item Item 1.a. \item Item 1.b. \stopitemize
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%   \noitem \startitemize[a][width=2em] \item Item 2.a. \item Item 2.b. \stopitemize
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% \stopitemize
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%
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% \startbuffer
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% \item
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%   \startitemize[n]
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%   \item item 1.1
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%   \item item 1.2
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%   \startitemize[n] \item item 1.2.1 \item item 1.2.2 \stopitemize
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%   \item item 1.3
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%   \stopitemize
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% \item
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%   \startitemize[n] \item item 2.1 \item item 2.2 \stopitemize
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% \item item 3
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%   \startitemize[n] \item item 3.1 \item item 3.2 \stopitemize
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% \item
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%   \startitemize[n] \item item 4.1 \item item 4.2 \stopitemize
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% \stopbuffer
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%
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% \startitemize[n,repeat,6*broad,packed] \getbuffer \stopitemize \blank[3*big]
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% \startitemize[n,repeat,packed]         \getbuffer \stopitemize \blank[3*big]
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% \setupitemize[each][atmargin][width=3em]
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% \startitemize[n,repeat,packed]         \getbuffer \stopitemize
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%
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% todo: assume startitem ... stopitem and do an autostopitem .. cleaner for
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% elements
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%
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% \startitemize[text][space=medium]
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% \item one \item two \item three
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% \stopitemize
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%
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% For Giuseppe "Oblomov" Bilotta, inspired on a suggestion by Taco
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% Hoekwater.
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%
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% \def\MyItemCommand#1{{\bf#1}\quad}
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% \setupitemgroup[itemize][command=\MyItemCommand]
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%
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% \startitemize
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% \item {test} is this okay?
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% \item {test} is this okay?
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% \item {test} is this okay?
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% \stopitemize
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\unprotect
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\newconditional
\c_strc_itemgroups_sub
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\newconditional
\c_strc_itemgroups_head
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\newconditional
\c_strc_itemgroups_intro
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\newconditional
\c_strc_itemgroups_randomize
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\newconditional
\c_strc_itemgroups_horizontal
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\newconditional
\c_strc_itemgroups_collecting
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\newconditional
\c_strc_itemgroups_auto_intro
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\newconditional
\c_strc_itemgroups_pack
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\newconditional
\c_strc_itemgroups_paragraph
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\newconditional
\c_strc_itemgroups_text
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\newconditional
\c_strc_itemgroups_text_saved
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\newconditional
\c_strc_itemgroups_first
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\newconditional
\c_strc_itemgroups_before
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\newconditional
\c_strc_itemgroups_after
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\newconditional
\c_strc_itemgroups_nowhite
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\newconditional
\c_strc_itemgroups_joined
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\newconditional
\c_strc_itemgroups_reverse
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\newconditional
\c_strc_itemgroups_continue
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\newconditional
\c_strc_itemgroups_fitting
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\newconditional
\c_strc_itemgroups_indented_first
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\newconditional
\c_strc_itemgroups_inline
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\newconditional
\c_strc_itemgroups_columns
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\newconditional
\c_strc_itemgroups_concat
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\newconditional
\c_strc_itemgroups_txt
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\newconditional
\c_strc_itemgroups_extra
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\newconditional
\c_strc_itemgroups_repeat
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\newconditional
\c_strc_itemgroups_inline_head
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% 0 = before/after
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% 1 = between unless before
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% 2 = between
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\newconstant
   
\c_strc_itemgroups_spacing_mode
   
\c_strc_itemgroups_spacing_mode
\plustwo
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\newconditional
\c_strc_itemgroups_optimize
       
\settrue
\c_strc_itemgroups_optimize
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\newconditional
\c_strc_itemgroups_auto_concat
    
\settrue
\c_strc_itemgroups_auto_concat
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\newsignal
     
\d_strc_itemgroups_signal
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\newbox
        
\b_strc_itemgroups
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\newdimen
      
\d_strc_itemgroups_list_width
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\newdimen
      
\d_strc_itemgroups_asked_width
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\newdimen
      
\d_strc_itemgroups_max_width
      
% multipass
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\newcount
      
\c_strc_itemgroups_max_items
      
% multipass
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\newcount
      
\c_strc_itemgroups_n_of_items
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\newcount
      
\c_strc_itemgroups_nesting
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\newcount
      
\c_strc_itemgroups_column_depth
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\def
           
\v_strc_itemgroups_counter
        
{
itemgroup
:
\currentparentitemgroup
}
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\let
           
\m_strc_itemgroups_repeat_start
   
\empty
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\def
           
\v_strc_itemgroups_unknown_symbol
 
{
?
}
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\let
           
\m_strc_itemgroups_indenting
      
\empty
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\let
           
\m_strc_itemgroups_destination
    
\empty
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\let
           
\currentitemlevel
                 
\!!zerocount
 
% public
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\def
           
\currentnofitems
                  
{
\the
\c_strc_itemgroups_max_items
}
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\def
           
\currentitemnumber
                
{
\strc_counters_raw_sub
\v_strc_itemgroups_counter
\currentitemlevel
}
 
% public
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\newtoks
       
\itemgroupcommands
                
% maybe public
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\def
           
\currentitemgroupsymbol
           
{
n
}
    
% here we cannot use a _ in the name
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\let
           
\currentitemgroupconversionset
    
\empty
 
% here we cannot use a _ in the name
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\let
           
\currentitemgroupsegments
         
\empty
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\def
\strc_itemgroups_register_status
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{
\clf_registeritemgroup
{
\currentparentitemgroup
}
\c_strc_itemgroups_nesting
\c_strc_itemgroups_n_of_items
\dimexpr
\itemgroupparameter
\c!maxwidth
\relax
}
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\def
\strc_itemgroups_check_n_of_items
 
% we could do this at the lua end and save a call (i.e. will be dimen and counter)
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{
\clf_analyzeitemgroup
{
\currentparentitemgroup
}
\c_strc_itemgroups_nesting
\relax
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\edef
\currentnofitems
{
\the
\c_strc_itemgroups_max_items
}}
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% todo: \dodosetreference -> \strc_counters_register_component (to be checked)
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\def
\strc_itemgroups_insert_reference
 
% we will make a decent number helper
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{
\iftrialtypesetting
 
\orelse
 
\ifempty
\currentitemreference
 
\else
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\strc_itemgroups_insert_reference_indeed
253   
\fi
}
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\def
\strc_itemgroups_insert_extra_reference
256  
{
\iftrialtypesetting
 
\orelse
 
\ifempty
\currentitemreference
 
\else
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\normalexpanded
{
\textreference
[
\currentitemreference
]
{
\strc_itemgroups_extra_symbol
}}
%
258   
\fi
}
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\def
\strc_itemgroups_insert_reference_indeed
 
% maybe we need a 'frozen counter' numberdata blob / quick hack .. .mive this to strc-ref
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{
% needs testing, gave problems:
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\setnextinternalreference
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% no need to collect nodes in \b_strc_destination_nodes here ... maybe at some point
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\strc_references_start_destination_nodes
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% this is somewhat over the top ... we should use the counter's reference
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\clf_setdestinationattribute
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{
%
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metadata
 
{
%
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kind
            
{
item
}
% was item, why?
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\ifx
\currentreferencecoding
\s!xml
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xmlroot
         
{
\xmldocument
}
% only useful when text
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\fi
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catcodes
        
\catcodetable
274         
}
%
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references
 
{
%
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internal
        
\locationcount
 
% no: this spoils references
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% block           {\currentsectionblock}%
278             
view
            
{
\interactionparameter
\c!focus
}
%
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prefix
          
{
\referenceprefix
}
%
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reference
       
{
\currentitemreference
}
%
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}
%
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prefixdata
 
{
%
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prefix
          
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!prefix
}
%
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separatorset
    
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!prefixseparatorset
}
%
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conversion
      
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!prefixconversion
}
%
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conversionset
   
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!prefixconversionset
}
%
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set
             
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!prefixset
}
%
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segments
        
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!prefixsegments
}
%
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% segments        {\askedprefixsegments}%
290             
connector
       
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!prefixconnector
}
%
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}
%
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numberdata
 
{
%
293             
numbers
         
{
\v_strc_itemgroups_counter
}
%
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separatorset
    
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!numberseparatorset
}
%
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% conversion      {\namedcounterparameter\v_strc_itemgroups_counter\c!numberconversion}%
296           
% conversionset   {\namedcounterparameter\v_strc_itemgroups_counter\c!numberconversionset}%
297           
% fixedconversion {\currentitemgroupconversionset}%
298             
conversionset
   
{
fixed
:
:
\currentitemgroupconversionset
}
% temp hack
299           
%
300           
% for the moment no stopper, we need to make references configurable first
301           
% stopper         {\namedcounterparameter\v_strc_itemgroups_counter\c!numberstopper}%
302             
segments
        
{
\namedcounterparameter
\v_strc_itemgroups_counter
\c!numbersegments
}
%
303         
}
%
304     
}
%
305   
\relax
306   
\strc_references_stop_destination_nodes
307   
\xdef
\currentdestinationattribute
{
\number
\lastdestinationattribute
}
%
308   
% will become an option:
309   
\ifnum
\lastdestinationattribute
>
\zerocount
310     
\dontleavehmode
\hbox
 
attr
 
\destinationattribute
\lastdestinationattribute
\bgroup
311       
\strc_references_flush_destination_nodes
312     
\egroup
313   
\fi
}
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%D Defining and setup:
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\installcorenamespace
{
itemgroup
}
318
\installcorenamespace
{
itemgroupoption
}
319
\installcorenamespace
{
itemgroupsetting
}
320
\installcorenamespace
{
itemgroupkeyword
}
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\installcorenamespace
{
itemgroupalign
}
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\installcorenamespace
{
itemgrouplocal
}
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\installcorenamespace
{
itemgroupglobal
}
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\installcorenamespace
{
itemgroupdistance
}
325
\installcorenamespace
{
itemgroupstack
}
326
\installcorenamespace
{
itemgroupfirst
}
327
\installcorenamespace
{
itemgroupstart
}
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\installcommandhandler
 
\??itemgroup
 
{
itemgroup
}
 
\??itemgroup
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331
\let
\setupitemgroups
\setupitemgroup
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333
\appendtoks
334    
\setuevalue
{
\e!start
\currentitemgroup
}{
\startitemgroup
[
\currentitemgroup
]
}
%
335    
\setuevalue
{
\e!stop
 
\currentitemgroup
}{
\stopitemgroup
}
%
336    
\setuevalue
{
\e!setup
\currentitemgroup
\e!endsetup
}{
\setupitemgroup
[
\currentitemgroup
]
}
% obsolete
337    
\let
\currentparentitemgroup
\currentitemgroup
338    
\definecounter
[
\v_strc_itemgroups_counter
]
%
339    
% beware ... we cannot use _ as the conversion set is not expanded
340    
% \defineconversionset[\v_strc_itemgroups_counter][\currentitemgroupconversionset][\currentitemgroupsymbol]%
341
\to
 
\everydefineitemgroup
342
343
%D Global states
344
345
\def
\strc_itemgroups_store_continue_state
#
options
#
settings
%
346   
{
\setxvalue
{
\??itemgroupoption
 
\currentitemgroup
}{
\strc_itemgroups_process_options
{
#
options
}}
%
347    
\setgvalue
{
\??itemgroupsetting
\currentitemgroup
}{
\setupcurrentitemgroup
[#
settings
]
}}
348
349
\def
\strc_itemgroups_fetch_continue_state
350  
{
\csname
\??itemgroupoption
 
\currentitemgroup
\endcsname
351   
\csname
\??itemgroupsetting
\currentitemgroup
\endcsname
}
352
353
\def
\strc_itemgroups_reset_continue_state
354  
{
\expandafter
\glet
\csname
\??itemgroupoption
 
\currentitemgroup
\endcsname\relax
355   
\expandafter
\glet
\csname
\??itemgroupsetting
\currentitemgroup
\endcsname\relax
}
356
357
% These will become keywords. We will also add a feature to keep the while set
358
% together.
359
360
\definevspacing
[
\v!item
 
@
0
]
     
[
penalty
:
0
]
     
% allow
361
\definevspacing
[
\v!item
 
@
1
0
0
0
0
]
 
[
penalty
:
1
0
0
0
0
]
 
% no
362
\definevspacing
[
\v!item
 
@
-
5
]
    
[
penalty
:
-
5
]
363
\definevspacing
[
\v!item
 
@
5
]
     
[
penalty
:
5
]
364
\definevspacing
[
\v!item
 
@
5
0
0
]
   
[
penalty
:
5
0
0
]
   
% discourage .. too low, 5000 is better
365
366
\def
\strc_itemgroups_insert_break_when_needed
#
break
%
367  
{
\ifconditional
\c_strc_itemgroups_optimize
368     
\ifconditional
\c_strc_itemgroups_text
 
\else
369       
#
break
\relax
370     
\fi
371   
\fi
}
372
373
\def
\strc_itemgroups_insert_breakallow
       
{
\strc_itemgroups_insert_break_when_needed
\strc_itemgroups_insert_breakallow_indeed
}
374
\def
\strc_itemgroups_insert_breakno
          
{
\strc_itemgroups_insert_break_when_needed
\strc_itemgroups_insert_breakno_indeed
   
}
375
\def
\strc_itemgroups_insert_break
            
{
\strc_itemgroups_insert_break_when_needed
\strc_itemgroups_insert_break_indeed
     
}
376
\def
\strc_itemgroups_insert_nobreak
          
{
\strc_itemgroups_insert_break_when_needed
\strc_itemgroups_insert_nobreak_indeed
   
}
377
378
\def
\strc_itemgroups_insert_breakallow_indeed
{
\vspacing
[
\v!item
 
@
0
]
}
379
\def
\strc_itemgroups_insert_breakno_indeed
   
{
\vspacing
[
\v!item
 
@
1
0
0
0
0
]
}
380
\def
\strc_itemgroups_insert_break_indeed
     
{
\flushnotes
381                                              
\vspacing
[
\v!item
 
@
-
5
]
}
382
\def
\strc_itemgroups_insert_nobreak_indeed
   
{
\flushnotes
383                                              
\ifinsidecolumns
 
% todo
384                                                
\vspacing
[
\v!item
 
@
5
]
%
385                                              
\else
386                                                
\vspacing
[
\v!item
 
@
5
0
0
]
%
387                                              
\fi
}
388
389
\unexpanded
\def
\strc_itemgroups_process_options
#
options
%
390  
{
\processcommacommand
[#
options
]
\strc_itemgroups_process_option
}
 
% expansion of options is handy for xml
391
392
% \installcommalistprocessorcommand \strc_itemgroups_process_option_list \strc_itemgroups_process_option
393
%
394
% \unexpanded\def\strc_itemgroups_process_options#options%
395
%   {\normalexpanded{\strc_itemgroups_process_option_list[#options]}} % expansion of options is handy for xml
396
397
\def
\strc_itemgroups_process_option
#
option
%
398  
{
\edef
\itemgroupconstantvalue
{
#
option
}
%
399   
\ifempty
\itemgroupconstantvalue
\else
400     
\splitatasterisk
\itemgroupconstantvalue
\itemgroupfirst
\itemgroupsecond
401     
\ifempty
\itemgroupsecond
402        
\let
\itemgroupsecond
\itemgroupfirst
403        
\let
\itemgroupfirst
\!!plusone
404     
\fi
405     
\ifcsname
\??itemgroupkeyword
\itemgroupsecond
\endcsname
406       
\lastnamedcs
407     
\else
408       
\strc_itemgroups_set_symbol
\itemgroupconstantvalue
409     
\fi
410   
\fi
}
411
412
\def
\strc_itemgroups_process_set_option_pack
413  
{
\ifcase
\c_strc_itemgroups_nesting
 
\else
414     
\settrue
\c_strc_itemgroups_pack
415   
\fi
}
416
417
\def
\strc_itemgroups_process_set_option_unpack
418  
{
\ifcase
\c_strc_itemgroups_nesting
\else
419     
\setfalse
\c_strc_itemgroups_pack
420   
\fi
}
421
422
\setvalue
{
\??itemgroupkeyword
\!!zerocount
  
}{}
 
% ignore 0
423
\setvalue
{
\??itemgroupkeyword\v!packed
     
}{
\strc_itemgroups_process_set_option_pack
}
424
\setvalue
{
\??itemgroupkeyword\v!unpacked
   
}{
\strc_itemgroups_process_set_option_unpack
}
425
\setvalue
{
\??itemgroupkeyword\v!intro
      
}{
\settrue
\c_strc_itemgroups_intro
}
 
% here? not set to false
426
\setvalue
{
\??itemgroupkeyword\v!autointro
  
}{
\settrue
\c_strc_itemgroups_auto_intro
}
427
\setvalue
{
\??itemgroupkeyword\v!broad
      
}{
\ifempty
\itemgroupfirst
428                                               
\let
\itemgroupfirst
\!!plusone
429                                             
\fi
430                                             
\letitemgroupparameter
\c!factor
\itemgroupfirst
}
431
\setvalue
{
\??itemgroupkeyword\v!text
       
}{
\settrue
\c_strc_itemgroups_text
432                                             
\settrue
\c_strc_itemgroups_inline
433                                             
\settrue
\c_strc_itemgroups_joined
434                                             
\strc_itemgroups_process_set_option_pack
}
435
\setvalue
{
\??itemgroupkeyword\v!before
     
}{
\settrue
\c_strc_itemgroups_before
}
436
\setvalue
{
\??itemgroupkeyword\v!after
      
}{
\settrue
\c_strc_itemgroups_after
}
437
\setvalue
{
\??itemgroupkeyword\v!nowhite
    
}{
\settrue
\c_strc_itemgroups_nowhite
}
438
\setvalue
{
\??itemgroupkeyword\v!margin
     
}{
\setitemgroupparameter
\c!width
{
-
2
em
}}
 
% signal
439
\setvalue
{
\??itemgroupkeyword\v!inmargin
   
}{
\setitemgroupparameter
\c!width
{
-
2
em
}}
 
% signal
440
\setvalue
{
\??itemgroupkeyword\v!atmargin
   
}{
\ifnum
\c_strc_itemgroups_nesting
>
\plusone
441                                               
\setitemgroupparameter
\c!width
{
0
em
}
%
442                                             
\fi
}
 
% signal
443
\setvalue
{
\??itemgroupkeyword\v!intext
     
}{
\settrue
\c_strc_itemgroups_inline
}
444
\setvalue
{
\??itemgroupkeyword\v!headintext
 
}{
\settrue
\c_strc_itemgroups_inline_head
}
445
\setvalue
{
\??itemgroupkeyword\v!loose
      
}{
\setfalse
\c_strc_itemgroups_optimize
}
446
\setvalue
{
\??itemgroupkeyword\v!fit
        
}{
\settrue
\c_strc_itemgroups_fitting
}
447
\setvalue
{
\??itemgroupkeyword\v!nofit
      
}{
\setfalse
\c_strc_itemgroups_fitting
}
448
\setvalue
{
\??itemgroupkeyword\v!paragraph
  
}{
\settrue
\c_strc_itemgroups_paragraph
449                                             
\strc_itemgroups_process_set_option_pack
}
450
\setvalue
{
\??itemgroupkeyword\v!joinedup
   
}{
\settrue
\c_strc_itemgroups_joined
451                                             
\strc_itemgroups_process_set_option_pack
}
452
\setvalue
{
\??itemgroupkeyword\v!notjoinedup
}{
\setfalse
\c_strc_itemgroups_joined
}
453
\setvalue
{
\??itemgroupkeyword\v!serried
    
}{
\edef
\itemgroupfirst
{
-
\ifempty
\itemgroupfirst
1
\else
\itemgroupfirst
\fi
}
%
454                                             
\letitemgroupparameter
\c!factor
\itemgroupfirst
}
455
\setvalue
{
\??itemgroupkeyword\v!stopper
    
}{
\letitemgroupparameter
\c!placestopper\v!yes
}
 
% keep {}
456
\setvalue
{
\??itemgroupkeyword\v!nostopper
  
}{
\letitemgroupparameter
\c!placestopper\v!no
}
 
% keep {}
457
\setvalue
{
\??itemgroupkeyword\v!repeat
     
}{
\settrue
\c_strc_itemgroups_repeat
}
458
\setvalue
{
\??itemgroupkeyword\v!norepeat
   
}{
\setfalse
\c_strc_itemgroups_repeat
}
459
\setvalue
{
\??itemgroupkeyword\v!reverse
    
}{
\settrue
\c_strc_itemgroups_reverse
}
460
\setvalue
{
\??itemgroupkeyword\v!columns
    
}{
\settrue
\c_strc_itemgroups_columns
}
461
\setvalue
{
\??itemgroupkeyword\v!one
        
}{
\letitemgroupparameter
\c!n
\plusone
}
462
\setvalue
{
\??itemgroupkeyword\v!two
        
}{
\letitemgroupparameter
\c!n
\plustwo
}
463
\setvalue
{
\??itemgroupkeyword\v!three
      
}{
\letitemgroupparameter
\c!n
\plusthree
}
464
\setvalue
{
\??itemgroupkeyword\v!four
       
}{
\letitemgroupparameter
\c!n
\plusfour
}
465
\setvalue
{
\??itemgroupkeyword\v!five
       
}{
\letitemgroupparameter
\c!n
\plusfive
}
466
\setvalue
{
\??itemgroupkeyword\v!six
        
}{
\letitemgroupparameter
\c!n
\plussix
}
467
\setvalue
{
\??itemgroupkeyword\v!seven
      
}{
\letitemgroupparameter
\c!n
\plusseven
}
468
\setvalue
{
\??itemgroupkeyword\v!eight
      
}{
\letitemgroupparameter
\c!n
\pluseight
}
469
\setvalue
{
\??itemgroupkeyword\v!nine
       
}{
\letitemgroupparameter
\c!n
\plusnine
}
470
\setvalue
{
\??itemgroupkeyword\v!standard
   
}{
\setitemgroupparameter
\c!width
        
{
1
.
5
\emwidth
}
%
471                                             
\setitemgroupparameter
\c!distance
     
{
.
5
\emwidth
}
%
472                                            
%\letitemgroupparameter\c!factor       \!!zerocount
473                                             
\letitemgroupparameter
\c!factor
       
{
\zerocount
}
%
474                                             
\setitemgroupparameter
\c!packcriterium
{
\zerocount
}
%
475                                             
\letitemgroupparameter
\c!inner
        
\empty
476                                             
\letitemgroupparameter
\c!beforehead
   
\empty
477                                             
\letitemgroupparameter
\c!afterhead
    
\blank
478                                             
\letitemgroupparameter
\c!before
       
\blank
479                                             
\letitemgroupparameter
\c!inbetween
    
\blank
480                                             
\letitemgroupparameter
\c!after
        
\blank
}
481
482
\def
\strc_itemgroups_initialize_local
483  
{
\setfalse
\c_strc_itemgroups_inline
484   
\setfalse
\c_strc_itemgroups_concat
485   
\setfalse
\c_strc_itemgroups_txt
486   
%
487   
\setfalse
\c_strc_itemgroups_reverse
488   
\setfalse
\c_strc_itemgroups_intro
489   
\setfalse
\c_strc_itemgroups_auto_intro
490   
\setfalse
\c_strc_itemgroups_before
491   
\setfalse
\c_strc_itemgroups_after
492   
\setfalse
\c_strc_itemgroups_nowhite
493   
\setfalse
\c_strc_itemgroups_randomize
494   
\setfalse
\c_strc_itemgroups_horizontal
495   
\setfalse
\c_strc_itemgroups_collecting
496   
\setfalse
\c_strc_itemgroups_intro
497   
\setfalse
\c_strc_itemgroups_continue
498   
% this will be a constant
499   
\setfalse
\c_strc_itemgroups_head
500   
\setfalse
\c_strc_itemgroups_sub
501   
\setfalse
\c_strc_itemgroups_symbol
502   
\setfalse
\c_strc_itemgroups_columns
503   
% to be checked
504   
\let
\m_strc_itemgroups_destination
\empty
505   
\let
\strc_itemgroups_used_symbol
  
\empty
 
% ** start value
506   
\let
\strc_itemgroups_margin_symbol
\empty
507   
\let
\strc_itemgroups_extra_symbol
 
\empty
508   
%
509   
\global
\letitemgroupparameter
\c!maxwidth
\!!zeropoint
510   
}
511
512
\setvalue
{
\??itemgroupfirst\v!intro
       
}{
\settrue
\c_strc_itemgroups_intro
}
513
\setvalue
{
\??itemgroupfirst\v!continue
    
}{
\settrue
\c_strc_itemgroups_continue
}
514
\setvalue
{
\??itemgroupfirst\v!random
      
}{
\settrue
\c_strc_itemgroups_randomize
515                                            
\settrue
\c_strc_itemgroups_collecting
}
516
\setvalue
{
\??itemgroupkeyword\v!horizontal
}{
\settrue
\c_strc_itemgroups_horizontal
517                                            
\settrue
\c_strc_itemgroups_collecting
518                                            
\settrue
\c_strc_itemgroups_inline
519                                            
\settrue
\c_strc_itemgroups_joined
520                                            
\strc_itemgroups_process_set_option_pack
}
521
522
\def
\strc_itemgroups_preset_stage_one
#
options
%
523  
{
\processcommacommand
[#
options
]
\strc_itemgroups_preset_stage_one_indeed
}
524
525
% \installcommalistprocessorcommand \strc_itemgroups_preset_stage_one_list \strc_itemgroups_preset_stage_one_indeed
526
%
527
% \def\strc_itemgroups_preset_stage_one#options%
528
%   {\normalexpanded{\strc_itemgroups_preset_stage_one_list[#options]}}
529
530
\def
\strc_itemgroups_preset_stage_one_indeed
#
option
%
531  
{
\ifcsname
\??itemgroupfirst
#
option
\endcsname
532     
\lastnamedcs
533   
\fi
}
534
535
\ifdefined
\dotagsetitemgroup
 
\else
 
\let
\dotagsetitemgroup
\relax
             
\fi
536
\ifdefined
\dotagsetitem
      
\else
 
\let
\dotagsetitem
     
\gobbleoneargument
 
\fi
537
538
\def
\strc_itemgroups_tag_start_group
539  
{
\dostarttaggedchained
\t!itemgroup
\currentparentitemgroup
\??itemgroup
540   
\dotagsetitemgroup
}
541
542
\def
\strc_itemgroups_tag_stop_group
543  
{
\dostoptagged
}
544
545
\def
\strc_itemgroups_before_command
546  
{
\ifconditional
\c_strc_itemgroups_nowhite
547     
\ifconditional
\c_strc_itemgroups_before
548       
\ifcase
\c_strc_itemgroups_nesting
\or
\itemgroupparameter
\c!before
\fi
549     
\else
550       
\nowhitespace
551     
\fi
552   
\orelse
\ifconditional
\c_strc_itemgroups_joined
553     
% \empty
554   
\else
555     
\itemgroupparameter
\c!before
556   
\fi
}
557
558
\def
\strc_itemgroups_after_command
559  
{
\ifconditional
\c_strc_itemgroups_nowhite
560     
\ifconditional
\c_strc_itemgroups_after
561       
\ifcase
\c_strc_itemgroups_nesting
\or
\itemgroupparameter
\c!after
\fi
562     
\else
563       
\nowhitespace
564     
\fi
565   
\orelse
\ifconditional
\c_strc_itemgroups_joined
566     
% \empty
567   
\else
568     
\itemgroupparameter
\c!after
569   
\fi
}
570
571
\def
\strc_itemgroups_between_command
572  
{
\ifconditional
\c_strc_itemgroups_nowhite
573     
\nowhitespace
574   
\orelse
\ifconditional
\c_strc_itemgroups_joined
575     
% \empty
576   
\else
577     
\itemgroupparameter
\c!inbetween
578   
\fi
}
579
580
\def
\strc_itemgroups_before_head_command
581  
{
\ifconditional
\c_strc_itemgroups_nowhite
582     
\nowhitespace
583   
\orelse
\ifconditional
\c_strc_itemgroups_joined
584     
% \empty
585   
\else
586     
\itemgroupparameter
\c!beforehead
587   
\fi
}
588
589
\def
\strc_itemgroups_after_head_command
590  
{
\ifconditional
\c_strc_itemgroups_nowhite
591     
\nowhitespace
592   
\orelse
\ifconditional
\c_strc_itemgroups_joined
593     
% \empty
594   
\else
595     
\itemgroupparameter
\c!afterhead
596   
\fi
}
597
598
% compatible setup command:
599
600
\let
\strc_itemgroups_normal_setup
\setupitemgroup
601
602
\unexpanded
\def
\setupitemgroup
603  
{
\doquadrupleempty
\strc_itemgroups_setup
}
604
605
\def
\strc_itemgroups_setup
[#
category
][#
levels
][#
options
][#
settings
]
% category level|each options|settings settings|options
606  
{
\edef
\strc_itemgroups_setup_what
{
#
levels
}
%
607   
\iffourthargument
608     
\ifx
\strc_itemgroups_setup_what
\v!each
609       
\strc_itemgroups_setup_each
{
#
category
}{
#
options
}
%
610       
\strc_itemgroups_setup_each
{
#
category
}{
#
settings
}
%
611     
\else
612       
\strc_itemgroups_setup_list
{
#
levels
}{
#
category
}{
#
options
}
%
613       
\strc_itemgroups_setup_list
{
#
levels
}{
#
category
}{
#
settings
}
%
614     
\fi
615   
\orelse
\ifthirdargument
616     
\ifx
\strc_itemgroups_setup_what
\v!each
617       
\strc_itemgroups_setup_each
{
#
category
}{
#
options
}
%
618     
\else
619       
\strc_itemgroups_setup_list
{
#
levels
}{
#
category
}{
#
options
}
%
620     
\fi
621   
\orelse
\ifsecondargument
622     
\strc_itemgroups_setup_each
{
#
category
}{
#
levels
}
%
623   
\else
624     
\strc_itemgroups_normal_setup
[#
category
]
% == settings
625   
\fi
}
626
627
% can be made a bit faster
628
629
% \def\strc_itemgroups_setup_each#category#whatever%
630
%   {\doifelseassignment{#whatever}
631
%      {\strc_itemgroups_normal_setup[#category][#whatever]}
632
%      {\strc_itemgroups_normal_setup[#category][\c!option={#whatever}]}}
633
634
\def
\strc_itemgroups_setup_each
#
category
#
whatever
%
635  
{
\ifcondition
\validassignment
{
#
whatever
}
%
636     
\strc_itemgroups_normal_setup
[#
category
][#
whatever
]
%
637   
\else
638     
\strc_itemgroups_normal_setup
[#
category
][
\c!option
=
{
#
whatever
}
]
%
639   
\fi
}
640
641
\def
\strc_itemgroups_setup_list_level_a
#
category
#
whatever
#
level
%
642  
{
\strc_itemgroups_normal_setup
[#
category
:
#
level
][#
whatever
]
}
643
644
\def
\strc_itemgroups_setup_list_level_b
#
category
#
whatever
#
level
%
645  
{
\strc_itemgroups_normal_setup
[#
category
:
#
level
][
\c!option
=
{
#
whatever
}
]
}
646
647
% \def\strc_itemgroups_setup_list#subcategories#category#whatever%
648
%   {\doifelseassignment{#whatever}
649
%      {\processcommalist[#subcategories]{\strc_itemgroups_setup_list_level_a{#category}{#whatever}}}
650
%      {\processcommalist[#subcategories]{\strc_itemgroups_setup_list_level_b{#category}{#whatever}}}}
651
652
\def
\strc_itemgroups_setup_list
#
subcategories
#
category
#
whatever
%
653  
{
\ifcondition
\validassignment
{
#
whatever
}
%
654     
\processcommalist
[#
subcategories
]
{
\strc_itemgroups_setup_list_level_a
{
#
category
}{
#
whatever
}}
%
655   
\else
656     
\processcommalist
[#
subcategories
]
{
\strc_itemgroups_setup_list_level_b
{
#
category
}{
#
whatever
}}
%
657   
\fi
}
658
659
\def
\strc_itemgroups_increment_item_counter
660  
{
\ifconditional
\c_strc_itemgroups_sub
 
\else
661     
\ifconditional
\c_strc_itemgroups_symbol
 
\else
 
% \ifempty\strc_itemgroups_extra_symbol
662       
\strc_counters_increment_sub
\v_strc_itemgroups_counter
\currentitemlevel
663     
\fi
664   
\fi
}
665
666
\unexpanded
\def
\strc_itemgroups_insert_item_counter
667  
{
\ifconditional
\c_strc_itemgroups_repeat
668     
\ifcase
\c_strc_itemgroups_nesting
669       
% skip
670     
\or
671       
\strc_itemgroups_insert_item_counter_indeed
 
% this could become an option
672     
\else
673       
\strc_itemgroups_insert_item_counter_indeed
674     
\fi
675   
\else
676     
\strc_itemgroups_insert_item_counter_indeed
677   
\fi
}
678
679
\def
\strc_itemgroups_insert_item_counter_indeed
 
% quite slow ... every time this setup .. but it
680  
{
\begingroup
                                  
% can be optimized ... best move some to strc-num
681   
\setupcounter
682     
[
\v_strc_itemgroups_counter
]
%
683     
[
\c!prefix
=
\itemgroupparameter
\c!prefix
,
684      
\c!prefixstopper
=
\itemgroupparameter
\c!prefixstopper
,
685      
\c!prefixseparatorset
=
\itemgroupparameter
\c!prefixseparatorset
,
686      
\c!prefixconversion
=
\itemgroupparameter
\c!prefixconversion
,
687      
\c!prefixconversionset
=
\itemgroupparameter
\c!prefixseparatorset
,
688      
\c!prefixset
=
\itemgroupparameter
\c!prefixset
,
689      
\c!prefixsegments
=
\itemgroupparameter
\c!prefixsegments
,
690      
\c!prefixconnector
=
\itemgroupparameter
\c!prefixconnector
,
691      
\c!criterium
=
\itemgroupparameter
\c!criterium
,
692      
\c!numberorder
=
\ifconditional
\c_strc_itemgroups_reverse
\v!reverse
\else
\v!normal
\fi
,
693      
\c!numberstopper
=
\expdoif
{
\itemgroupparameter
\c!placestopper
}
\v!yes
{
\itemgroupparameter
\c!stopper
}
,
694      
\c!numberconversionset
=
\v_strc_itemgroups_counter
,
695      
\c!numbersegments
=
\currentitemgroupsegments
]
%
696   
% there will be a fixedconversion key
697  
%\normalexpanded{\defineconversionset[\v_strc_itemgroups_counter][\currentitemgroupconversionset][\currentitemgroupsymbol]}%
698   
\normalexpanded
{
\strc_sets_define_conversion_set
[
\v_strc_itemgroups_counter
][
\currentitemgroupconversionset
][
\currentitemgroupsymbol
]
}
%
699   
%
700   
\convertedcounter
[
\v_strc_itemgroups_counter
]
% [\number\currentitemlevel]%
701   
\strc_itemgroups_insert_reference
702   
\endgroup
}
703
704
% needs testing (maybe it need to happen later)
705
%
706
% \appendtoks
707
%    \setupcounter
708
%      [\v_strc_itemgroups_counter]%
709
%      [\c!prefix=\itemgroupparameter\c!prefix,
710
%       \c!prefixstopper=\itemgroupparameter\c!prefixstopper,
711
%       \c!prefixseparatorset=\itemgroupparameter\c!prefixseparatorset,
712
%       \c!prefixconversion=\itemgroupparameter\c!prefixconversion,
713
%       \c!prefixconversionset=\itemgroupparameter\c!prefixseparatorset,
714
%       \c!prefixset=\itemgroupparameter\c!prefixset,
715
%       \c!prefixsegments=\itemgroupparameter\c!prefixsegments,
716
%       \c!prefixconnector=\itemgroupparameter\c!prefixconnector,
717
%       \c!criterium=\itemgroupparameter\c!criterium,
718
%       \c!numberorder=\ifconditional\c_strc_itemgroups_reverse\v!reverse\else\v!normal\fi,
719
%       \c!numberstopper=\expdoif{\itemgroupparameter\c!placestopper}\v!yes{\itemgroupparameter\c!stopper},
720
%       \c!numberconversionset=\v_strc_itemgroups_counter,
721
%       \c!numbersegments=\currentitemgroupsegments]%
722
% \to\itemgroupcommands
723
%
724
% \def\strc_itemgroups_insert_item_counter_indeed % quite slow ... every time this setup .. but it
725
%   {\begingroup                                  % can be optimized ... best move some to strc-num
726
%    % there will be a fixedconversion key
727
%   %\normalexpanded{\defineconversionset[\v_strc_itemgroups_counter][\currentitemgroupconversionset][\currentitemgroupsymbol]}%
728
%    \normalexpanded{\strc_sets_define_conversion_set[\v_strc_itemgroups_counter][\currentitemgroupconversionset][\currentitemgroupsymbol]}%
729
%    %
730
%    \convertedcounter[\v_strc_itemgroups_counter]% [\number\currentitemlevel]%
731
%    \strc_itemgroups_insert_reference
732
%    \endgroup}
733
734
\def
\strc_itemgroups_set_symbol
#
symbol
%
735  
{
\edef
\strc_itemgroups_tmp_symbol
{
#
symbol
}
%
736   
\ifempty
\strc_itemgroups_tmp_symbol
 
\else
737     
\doifelsesymboldefined
\strc_itemgroups_tmp_symbol
738        
\strc_itemgroups_set_symbol_symbol
739        
{
\doifelseconversiondefined
\strc_itemgroups_tmp_symbol
740           
\strc_itemgroups_set_symbol_conversion
741           
\donothing
}
%
742   
\fi
}
743
744
\def
\strc_itemgroups_set_symbol_symbol
745  
{
\let
\currentitemgroupsymbol
\strc_itemgroups_tmp_symbol
746   
\strc_itemgroups_store_global_symbol
\currentitemgroupsymbol
747   
\strc_itemgroups_store_local_symbol
\v_strc_itemgroups_unknown_symbol
748   
\let
\strc_itemgroups_used_symbol
\strc_itemgroups_set_symbol_symbol_item
749   
\let
\strc_itemgroups_asked_symbol
\empty
}
750
751
\def
\strc_itemgroups_set_symbol_conversion
752  
{
\let
\currentitemgroupsymbol
\strc_itemgroups_tmp_symbol
753   
\strc_itemgroups_store_global_symbol
\currentitemgroupsymbol
754   
\strc_itemgroups_store_local_symbol
\strc_itemgroups_insert_item_counter
755   
\let
\strc_itemgroups_used_symbol
\strc_itemgroups_set_symbol_conversion_item
756   
\let
\strc_itemgroups_asked_symbol
\empty
}
757
758
\def
\strc_itemgroups_set_symbol_symbol_item
759  
{
\symbol
[
\currentitemgroupsymbol
]
}
760
761
\def
\strc_itemgroups_set_symbol_conversion_item
762  
{
\ifconditional
\c_strc_itemgroups_text
763     
% maybe block stopper here, but one can as well clone an itemgroup then
764     
\itemgroupparameter
\c!lefttext
765     
\strc_itemgroups_fetch_local_symbol
766     
\itemgroupparameter
\c!righttext
767   
\else
768     
\itemgroupparameter
\c!left
769     
\strc_itemgroups_fetch_local_symbol
770     
\itemgroupparameter
\c!right
771   
\fi
}
772
773
\def
\strc_itemgroups_calculate_list_width
#
level
%
774  
{
\let
\savedcurrentitemgroup
\currentitemgroup
775   
\edef
\currentitemgroup
{
\currentparentitemgroup
:
\number
#
level
}
%
776   
\ifdim
\d_strc_itemgroups_max_width
>
\zeropoint
777     
\d_strc_itemgroups_list_width
\d_strc_itemgroups_max_width
778   
\orelse\ifnum
\itemgroupparameter
\c!factor
>
\zerocount
779     
\d_strc_itemgroups_list_width
\itemgroupparameter
\c!step
\relax
780     
\ifzeropt
\d_strc_itemgroups_list_width
 
\d_strc_itemgroups_list_width
=
.
5
em
\fi
781     
\multiply
\d_strc_itemgroups_list_width
 
\itemgroupparameter
\c!factor
782     
\advance
\d_strc_itemgroups_list_width
\itemgroupparameter
\c!width
\relax
783   
\else
784     
\d_strc_itemgroups_list_width
\itemgroupparameter
\c!width
\relax
785   
\fi
786   
\advance
\d_strc_itemgroups_list_width
\itemgroupparameter
\c!distance
\relax
787   
\let
\currentitemgroup
\savedcurrentitemgroup
}
788
789
\unexpanded
\def
\startitemgroup
790  
{
\dotripleempty
\strc_itemgroups_start
}
791
792
\def
\strc_itemgroups_start
[#
category
][#
options
][#
settings
]
%
793  
{
\begingroup
 
% (1)
794   
\def
\currentitemgroup
{
#
category
}
% no nested mixing of itemgroups
795   
\let
\currentparentitemgroup
\currentitemgroup
796   
\global\advance
\c_strc_itemgroups_nesting
\plusone
797   
\def
\currentitemlevel
{
\number
\c_strc_itemgroups_nesting
}
%
798   
\normalexpanded
{
\chaintocurrentitemgroup
{
\currentparentitemgroup
:
\currentitemlevel
}}
%
799   
\edef
\currentitemgroup
{
\currentparentitemgroup
:
\currentitemlevel
}
%
800   
%
801   
\ifthirdargument
802     
\strc_itemgroups_start_indeed
[#
options
][#
settings
]
%
803   
\orelse
\ifsecondargument
804     
\ifcondition
\validassignment
{
#
options
}
%
805       
\strc_itemgroups_start_indeed
[][#
options
]
%
806     
\else
807       
\strc_itemgroups_start_indeed
[#
options
][]
%
808     
\fi
809   
\else
810     
\strc_itemgroups_start_indeed
[][]
%
811   
\fi
}
812
813
\def
\strc_itemgroups_start_indeed
[#
options
][#
settings
]
%
814  
{
\edef
\itemgroupoptions
{
\itemgroupparameter
\c!option
}
%
815   
\edef
\itemgroupextraoptions
{
#
options
}
%
816   
\ifempty
\itemgroupoptions
817     
\let
\itemgroupoptions
\itemgroupextraoptions
818   
\orelse\ifempty
\itemgroupextraoptions
819     
% ok
820   
\else
821     
\edef
\itemgroupoptions
{
\itemgroupoptions
,
\itemgroupextraoptions
}
%
822   
\fi
823   
\begingroup
 
% (2)
824   
\the
\itemgroupcommands
825   
\let
\c_strc_itemgroups_text_saved
\c_strc_itemgroups_text
826   
\strc_itemgroups_initialize_local
827   
\strc_itemgroups_preset_stage_one
\itemgroupoptions
828
%
829
%    \ifhmode
830
%      \ifconditional\c_strc_itemgroups_auto_concat
831
%        \ifdim\lastskip=\d_strc_itemgroups_signal
832
%          \settrue\c_strc_itemgroups_concat
833
%        \fi
834
%      \fi
835
%      \ifconditional\c_strc_itemgroups_text_saved \else
836
%        \ifconditional\c_strc_itemgroups_text \else
837
%          \par
838
%        \fi
839
%      \fi
840
%    \fi
841
%
842   
\iftrialtypesetting
843     
\strc_counters_save
\v_strc_itemgroups_counter
844   
\fi
845   
\c_strc_itemgroups_n_of_items
\zerocount
846   
\strc_itemgroups_check_n_of_items
847   
\ifempty
\itemgroupoptions
848     
\strc_itemgroups_setup_symbol_default
849     
\strc_itemgroups_reset_continue_state
850     
\setupcurrentitemgroup
[#
settings
]
%
851   
\else
852     
\strc_itemgroups_process_options
\itemgroupoptions
853     
\setupcurrentitemgroup
[#
settings
]
%
854     
\ifconditional
\c_strc_itemgroups_continue
855       
\strc_itemgroups_setup_symbol_continue
856       
\strc_itemgroups_fetch_continue_state
857     
\else
858       
\strc_itemgroups_setup_symbol_asked
859       
\strc_itemgroups_store_continue_state
\itemgroupoptions
{
#
settings
}
%
860     
\fi
861   
\fi
862   
%
863   
\ifhmode
864     
\ifconditional
\c_strc_itemgroups_auto_concat
865       
\ifdim
\lastskip
=
\d_strc_itemgroups_signal
866         
\settrue
\c_strc_itemgroups_concat
867       
\fi
868     
\fi
869     
\ifconditional
\c_strc_itemgroups_text_saved
 
\else
870       
\ifconditional
\c_strc_itemgroups_text
 
\else
871         
\par
872       
\fi
873     
\fi
874   
\fi
875   
%
876   
\ifconditional
\c_strc_itemgroups_pack
877     
\ifnum
\currentnofitems
>
\itemgroupparameter
\c!packcriterium
\relax\else
878       
\setfalse
\c_strc_itemgroups_pack
879     
\fi
880   
\fi
881   
%
882   
\ifnum
\c_strc_itemgroups_nesting
=
\plusone
 
% NIEUW
883     
\doadaptleftskip
 
{
\itemgroupparameter
\c!margin
}
%
884     
\doadaptleftskip
 
{
\itemgroupparameter
\c!leftmargin
}
%
885     
\doadaptrightskip
{
\itemgroupparameter
\c!rightmargin
}
%
886   
\fi
887   
%
888   
\doadaptleftskip
 
{
\itemgroupparameter
\c!leftmargindistance
}
%
889   
\doadaptrightskip
{
\itemgroupparameter
\c!rightmargindistance
}
%
890   
%
891   
\usealignparameter
\itemgroupparameter
892   
\edef
\m_strc_itemgroups_indenting
{
\itemgroupparameter
\c!indenting
}
%
893   
\ifnum
\c_strc_itemgroups_nesting
>
\zerocount
894     
\settrue
\c_strc_itemgroups_first
895     
\ifconditional
\c_strc_itemgroups_continue
 
\else
896       
\strc_counters_restart_sub
\v_strc_itemgroups_counter
\currentitemlevel
{
\numexpr
\itemgroupparameter
\c!start
-
\plusone
\relax
}
%
897     
\fi
898   
\fi
899   
\ifempty
\strc_itemgroups_used_symbol
900     
\strc_itemgroups_set_symbol
\strc_itemgroups_asked_symbol
 
% ** default value
901     
\ifempty
\strc_itemgroups_used_symbol
902       
\let
\currentitemgroupsymbol
\currentitemlevel
 
% ** fall back
903     
\fi
904   
\fi
905   
\ifconditional
\c_strc_itemgroups_auto_intro
\ifnum
\prevgraf
<
\plusthree
906     
\settrue
\c_strc_itemgroups_intro
907   
\fi\fi
908   
\ifconditional
\c_strc_itemgroups_paragraph
909     
\ifnum
\c_strc_itemgroups_nesting
>
\plusone
910       
\letitemgroupparameter
\c!inbetween
\empty
911     
\fi
912   
\fi
913   
\ifconditional
\c_strc_itemgroups_pack
914     
\letitemgroupparameter
\c!inbetween
\empty
915   
\fi
916   
\ifconditional
\c_strc_itemgroups_columns
917     
\ifinsidecolumns
\else\ifcase
\c_strc_itemgroups_column_depth
918       
\global
\c_strc_itemgroups_column_depth
\c_strc_itemgroups_nesting
 
% global ?
919       
\strc_itemgroups_before_command
920       
\strc_itemgroups_tag_start_group
921       
\strc_itemgroups_start_columns
922     
\fi\fi
923   
\fi
924   
\ifconditional
\c_strc_itemgroups_fitting
925     
\ifdim
\d_strc_itemgroups_max_width
>
\zeropoint
926       
\letitemgroupparameter
\c!width
\d_strc_itemgroups_max_width
927     
\fi
928   
\fi
929   
\strc_itemgroups_calculate_list_width
\c_strc_itemgroups_nesting
930   
\ifdim
\d_strc_itemgroups_list_width
>
\zeropoint
\relax
931     
\ifconditional
\c_strc_itemgroups_inline
\else
932       
\advance\leftskip
\d_strc_itemgroups_list_width
\relax
933     
\fi
934   
\fi
935   
\ifempty
\m_strc_itemgroups_repeat_start
936     
\let
\currentitemgroupconversionset
 
\currentitemgroupsymbol
937     
\edef
\currentitemgroupsegments
     
{
\currentitemlevel
}
%
938   
\else
939     
\edef
\currentitemgroupconversionset
{
\currentitemgroupconversionset
,
\currentitemgroupsymbol
}
%
940     
\edef
\currentitemgroupsegments
     
{
\m_strc_itemgroups_repeat_start
:
\currentitemlevel
}
%
941   
\fi
942   
\d_strc_itemgroups_asked_width
\itemgroupparameter
\c!width
\relax
943   
\startcollectitems
}
944
945
\let
\startcollectitems
\relax
946
\let
\stopcollectitems
 
\relax
947
948
\letvalue
{
\??itemgroupalign\v!flushleft
 
}
\relax
949
\letvalue
{
\??itemgroupalign\v!right
     
}
\relax
950
\letvalue
{
\??itemgroupalign\v!flushright
}
\hfill
951
\letvalue
{
\??itemgroupalign\v!left
      
}
\hfill
952
\letvalue
{
\??itemgroupalign\v!middle
    
}
\hfil
953
\letvalue
{
\??itemgroupalign\v!center
    
}
\hfil
954
955
\def
\strc_itemgroups_left_sym_filler
956  
{
\csname
\??itemgroupalign
\itemgroupparameter
\c!symalign
\endcsname
}
957
958
% symbols + states
959
960
\def
\strc_itemgroups_store_global_symbol
#
symbol
%
961  
{
\letgvalue
{
\??itemgroupglobal
\currentitemgroup
:
\currentitemlevel
}
#
symbol
}
962
963
\def
\strc_itemgroups_store_local_symbol
#
symbol
%
964  
{
\letgvalue
{
\??itemgrouplocal
\currentitemgroup
:
\currentitemlevel
}
#
symbol
}
965
966
\def
\strc_itemgroups_fetch_global_symbol
967  
{
\csname
\??itemgroupglobal
\currentitemgroup
:
\currentitemlevel
\endcsname
}
968
969
\def
\strc_itemgroups_fetch_local_symbol
970  
{
\csname
\??itemgrouplocal
\currentitemgroup
:
\currentitemlevel
\endcsname
}
971
972
\def
\strc_itemgroups_setup_symbol_default
973  
{
\edef
\strc_itemgroups_asked_symbol
{
\itemgroupparameter
\c!symbol
}
%
974   
\strc_itemgroups_store_global_symbol
\empty
}
975
976
\def
\strc_itemgroups_setup_symbol_continue
977  
{
\ifcsname
\??itemgroupglobal
\currentitemgroup
:
\currentitemlevel
\endcsname
978     
\let
\strc_itemgroups_asked_symbol
\strc_itemgroups_fetch_global_symbol
979   
\else
980     
\let
\strc_itemgroups_asked_symbol
\currentitemlevel
981   
\fi
}
982
983
\def
\strc_itemgroups_setup_symbol_asked
984   
{
\edef
\strc_itemgroups_asked_symbol
{
\itemgroupparameter
\c!symbol
}}
985
986
\ifdefined
\strc_itemgroups_start_columns
987
988    
% already defined in page-mix
989
990
\else
991
992    
% will be redefined in page-mix
993
994    
\ifdefined
\startcolumns
 
\else
995        
\unexpanded
\def
\startcolumns
[#
settings
]
{}
996        
\unexpanded
\def
\stopcolumns
            
{}
997    
\fi
998
999    
\def
\strc_itemgroups_start_columns
1000      
{
\startcolumns
1001         
[
\c!n
=
\itemgroupparameter
\c!n
,
1002          
\c!height
=
,
1003          
\c!rule
=
\v!off
,
1004          
\c!balance
=
\v!yes
,
1005          
\c!align
=
\v!no
]
}
1006
1007    
\def
\strc_itemgroups_stop_columns
1008      
{
\stopcolumns
}
1009
1010
\fi
1011
1012
\unexpanded
\def
\stopitemgroup
1013  
{
\stopcollectitems
1014   
\ifconditional
\c_strc_itemgroups_text
1015     
\removeunwantedspaces
1016     
\space
1017     
\ignorespaces
1018   
\else
1019     
\par
1020   
\fi
1021   
\strc_itemgroups_register_status
1022   
\ifconditional
\c_strc_itemgroups_first
 
\else
1023     
\dostoptagged
1024     
\dostoptagged
1025   
% \endgroup % (3)
1026   
\fi
1027   
\ifnum
\c_strc_itemgroups_column_depth
=
\c_strc_itemgroups_nesting
\relax
1028     
\strc_itemgroups_stop_columns
1029     
\global
\c_strc_itemgroups_column_depth
\zerocount
 
% global ?
1030     
\strc_itemgroups_tag_stop_group
1031     
\strc_itemgroups_after_command
1032     
\dontrechecknextindentation
1033   
\orelse\ifnum
\c_strc_itemgroups_nesting
=
\plusone
1034     
\strc_itemgroups_insert_breakallow
1035     
\strc_itemgroups_tag_stop_group
1036     
\strc_itemgroups_after_command
1037     
\useindentnextparameter
\itemgroupparameter
1038   
\else
1039     
% nieuw, not yet nobreak handling
1040     
\strc_itemgroups_tag_stop_group
1041     
\ifcase
\c_strc_itemgroups_spacing_mode
1042       
\strc_itemgroups_after_command
1043     
\or
1044       
\strc_itemgroups_after_command
1045     
\fi
1046     
\dontrechecknextindentation
1047   
\fi
1048   
% new test, needed in sidefloats (surfaced in volker's proceedings)
1049   
\iftrialtypesetting
1050     
\strc_counters_restore
\v_strc_itemgroups_counter
 
% could happen in LUA
1051   
\fi
1052   
\global\advance
\c_strc_itemgroups_nesting
\minusone
1053   
\xdef
\currentitemlevel
{
\number
\c_strc_itemgroups_nesting
}
%
1054  
%\ifconditional\c_strc_itemgroups_text
1055     
\endgroup
 
% (2)
1056     
\endgroup
 
% (1)
1057  
%\else
1058  
%  \endgroup % (2)
1059  
%  \endgroup % (1)
1060  
%  \par % hm, already done, and dangerous as \c_strc_itemgroups_text is already forgotten
1061  
%\fi
1062   
\dorechecknextindentation
}
1063
1064
% The items.
1065
1066
\unexpanded
\def
\startitemgroupitem
1067  
{
\dosingleempty
\strc_itemgroups_start_item
}
1068
1069
\def
\strc_itemgroups_start_item_first
1070  
{
\setfalse
\c_strc_itemgroups_first
1071 
% \begingroup % (3)
1072   
\ifcase
\c_strc_itemgroups_nesting
1073                                           
% 0
1074   
\or
1075     
\strc_itemgroups_start_item_first_one
 
% 1
1076   
\else
1077     
\strc_itemgroups_start_item_first_two
 
% 2+
1078   
\fi
}
1079
1080
\def
\strc_itemgroups_start_item_first_one
1081  
{
\ifcase
\c_strc_itemgroups_column_depth
1082     
\ifconditional
\c_strc_itemgroups_intro
\strc_itemgroups_insert_breakno
\fi
1083     
\strc_itemgroups_before_command
1084     
\strc_itemgroups_tag_start_group
1085     
\ifconditional
\c_strc_itemgroups_intro
\strc_itemgroups_insert_breakno
\fi
1086   
\fi
}
1087
1088
\def
\strc_itemgroups_start_item_first_two
1089  
{
\ifconditional
\c_strc_itemgroups_paragraph
\else
1090     
\edef
\previtemlevel
{
\the\numexpr
\c_strc_itemgroups_nesting
-
\plusone
}
%
1091     
\ifcase
\c_strc_itemgroups_spacing_mode
1092       
\strc_itemgroups_before_command
1093     
\or
1094       
\doifelsenothing
\strc_itemgroups_before_command
 
% should possibly expand to empty
1095         
{
\nameditemgroupparameter
{
\currentparentitemgroup
:
\previtemlevel
}
\c!inbetween
}
%
1096         
\strc_itemgroups_before_command
1097     
\else
1098       
\nameditemgroupparameter
{
\currentparentitemgroup
:
\previtemlevel
}
\c!inbetween
1099     
\fi
1100     
\strc_itemgroups_tag_start_group
1101   
\fi
}
1102
1103
\def
\strc_itemgroups_start_item_next
1104  
{
\dostoptagged
 
% ok? what do we stop here?
1105   
\dostoptagged
 
% ok? what do we stop here?
1106   
\ifconditional
\c_strc_itemgroups_text
1107     
\ifhmode
1108       
% WS: make the distance between items customizable, think about better default values -> see itemize-1.tex
1109       
\strc_itemgroups_set_text_item_distance
% HH: moved out and made configurable (sort of)
1110       
\removeunwantedspaces
1111       
\hskip
\m_strc_itemgroups_text_distance
\relax
1112     
\fi
1113   
\else
1114     
\strc_itemgroups_between_command
1115   
\fi
}
1116
1117
% c_strc_itemgroups_concat:
1118
%
1119
% the problem is that we use leftskip so concat cannot reliable take the height into
1120
% account; it's .. rather tricky when white space in there anyway (due to \par) .. so
1121
% we rely on a special blank method
1122
%
1123
% \startitemize[n]
1124
%     \item bla
1125
%     \item \startitemize[a]
1126
%         \item bla $\displaystyle\int^{x^{y^4}}$ \item bla
1127
%     \stopitemize
1128
% \stopitemize
1129
1130
\unexpanded
\def
\strc_itemgroups_start_item
[#
reference
]
% we can reuse more
1131  
{
\def
\currentitemreference
{
#
reference
}
%
1132   
\ifconditional
\c_strc_itemgroups_text
1133     
% begin of item
1134   
\else
1135     
\par
1136   
\fi
1137   
\ifconditional
\c_strc_itemgroups_concat
1138     
\strc_itemgroups_insert_breakno
1139   
\fi
1140   
\strc_itemgroups_increment_item_counter
1141   
\ifconditional
\c_strc_itemgroups_first
1142     
\strc_itemgroups_start_item_first
1143   
\else
1144     
\strc_itemgroups_start_item_next
1145   
\fi
1146   
\ifconditional
\c_strc_itemgroups_concat
1147     
\spac_overlay_lines
 
% see spac-ver.mkvi ... a typical potential problem
1148     
\setfalse
\c_strc_itemgroups_concat
1149   
\fi
1150   
\dostarttagged
\t!item
\empty
1151  
% \dotagsetitem\empty
1152   
\dostarttagged
\t!itemtag
\empty
1153   
\strc_itemgroups_insert_item
1154   
\dostoptagged
1155   
\ifconditional
\c_strc_itemgroups_pack
1156     
\setupwhitespace
[
\v!none
]
%
1157   
\fi
1158   
\itemgroupparameter
\c!inner
 
% will become obsolete (better use setups)
1159   
\strc_itemgroups_margin_symbol
1160   
\let
\strc_itemgroups_margin_symbol
\relax
1161   
\dostarttagged
\t!itemcontent
\empty
1162   
\begstrut
 
% \strut
1163   
\nobreak
                            
% else problems with intext items
1164   
\seteffectivehsize
 
% NEW !
1165   
\hskip
\d_strc_itemgroups_signal
     
% concat
1166   
\itemgroupparameter
\c!command
}
1167
1168
\unexpanded
\def
\stopitemgroupitem
1169  
{
\ifhmode
1170     
\endstrut
 
% new per 2017-12-15
1171   
\fi
1172   
\ifconditional
\c_strc_itemgroups_text
1173     
% nothing
1174   
\else
1175     
\endgraf
1176   
\fi
}
1177
\unexpanded
\def
\startitemgrouphead
1178  
{
\dosingleempty
\strc_itemgroups_start_head
}
1179
1180
\unexpanded
\def
\strc_itemgroups_start_head
[#
reference
]
%
1181  
{
\ifconditional
\c_strc_itemgroups_first
 
\else
1182     
\strc_itemgroups_insert_breakallow
1183   
\fi
1184   
\ifconditional
\c_strc_itemgroups_pack
 
\else
1185     
\strc_itemgroups_before_head_command
1186   
\fi
1187   
\ifconditional
\c_strc_itemgroups_first
1188     
\ifconditional
\c_strc_itemgroups_intro
 
\else
1189       
\ifcase
\c_strc_itemgroups_nesting
1190         
\strc_itemgroups_insert_breakallow
1191       
\fi
1192     
\fi
1193   
\fi
1194   
\strc_itemgroups_start_item
[#
reference
]
%
1195   
\pickupgroupedcommand
1196     
\strc_itemgroups_start_head_indeed
1197     
\strc_itemgroups_stop_head_indeed
1198     
\strc_itemgroups_head_body_indeed
}
1199
1200
\unexpanded
\def
\stopitemgrouphead
1201  
{
\dostoptagged
1202   
\stopitemgroupitem
}
1203
1204
\unexpanded
\def
\strc_itemgroups_start_head_indeed
1205  
{
\settrue
\c_strc_itemgroups_head
1206   
\dotagsetitem
\s!head
% % weird place
1207   
\dostarttagged
\t!itemhead
\empty
1208   
\useitemgroupstyleandcolor
\c!headstyle\c!headcolor
\ignorespaces
}
1209
1210
\unexpanded
\def
\strc_itemgroups_stop_head_indeed
1211  
{
\removeunwantedspaces
1212   
\dostoptagged
1213   
\ifconditional
\c_strc_itemgroups_inline_head
1214       
\space
1215       
\ignorespaces
1216   
\else
1217     
\ifconditional
\c_strc_itemgroups_text
1218       
\space
1219       
\ignorespaces
1220     
\else
1221       
\par
1222     
\fi
1223     
\strc_itemgroups_insert_breakno
1224     
\ifconditional
\c_strc_itemgroups_pack
\else
\strc_itemgroups_after_head_command
\fi
1225     
\strc_itemgroups_insert_breakno
1226  
\fi
}
1227
1228
\unexpanded
\def
\strc_itemgroups_head_body_indeed
1229  
{
\dostarttagged
\t!itembody
\empty
1230   
\noindentation
1231   
\ignorespaces
}
1232
1233
% Simple commands.
1234
1235
\unexpanded
\def
\strc_itemgroups_start_do_item
1236  
{
\startitemgroupitem
}
1237
1238
\unexpanded
\def
\strc_itemgroups_start_no_item
1239  
{
\let
\currentitemreference
\empty
1240   
\strc_itemgroups_increment_item_counter
1241  
%\advance\c_strc_itemgroups_n_of_items\plusone
1242   
\setbox
\b_strc_itemgroups
\emptyhbox
1243   
\strc_itemgroups_check_for_repeated
1244   
\ignorespaces
}
1245
1246
\unexpanded
\def
\strc_itemgroups_start_button
[#
destination
]
%
1247  
{
\edef
\m_strc_itemgroups_destination
{
#
destination
}
%
1248   
\startitemgroupitem
}
1249
1250
\unexpanded
\def
\strc_itemgroups_start_symbol
#
text
%
1251  
{
\def
\strc_itemgroups_extra_symbol
{
#
text
}
%
1252   
\settrue
\c_strc_itemgroups_symbol
1253   
\startitemgroupitem
1254   
\dotagsetitem
\s!symbol
}
1255
1256
\unexpanded
\def
\strc_itemgroups_start_dummy
1257  
{
\strc_itemgroups_start_symbol
1258  
%\strut\strut} % two ?
1259   
\begstrut
}
1260
1261
\unexpanded
\def
\strc_itemgroups_start_subitem
1262  
{
\settrue
\c_strc_itemgroups_sub
1263   
\startitemgroupitem
1264   
\dotagsetitem
\s!sub
}
1265
1266
\unexpanded
\def
\strc_itemgroups_start_edge
#
text
%
1267  
{
\strc_itemgroups_start_symbol
1268     
{
\strc_itemgroups_calculate_list_width
\c_strc_itemgroups_nesting
1269      
\dostarttagged
\t!ignore
\empty
 
% for the moment, maybe an attribute
1270      
\hbox
 
to
 
\d_strc_itemgroups_list_width
1271        
{
#
text
\hskip
\itemgroupparameter
\c!distance
}
%
1272      
\dostoptagged
}}
1273
1274
\unexpanded
\def
\strc_itemgroups_start_margin
#
text
%
1275  
{
\def
\strc_itemgroups_margin_symbol
 
% brrr
1276     
{
\dostarttagged
\t!ignore
\empty
 
% for the moment, maybe an attribute
1277      
\llap
1278        
{
\begingroup
1279         
\useitemgroupstyleandcolor
\c!marstyle\c!marcolor
1280         
#
text
% keep em/ex local
1281         
\endgroup
1282         
\hskip\dimexpr\leftskip
+
\leftmargindistance
\relax
}
%
1283      
\dostoptagged
}
%
1284   
\startitemgroupitem
1285   
\dotagsetitem
\s!margin
}
1286
1287
\unexpanded
\def
\strc_itemgroups_start_text
#
text
%
1288  
{
\def
\strc_itemgroups_extra_symbol
{
#
text
}
%
1289   
\settrue
\c_strc_itemgroups_symbol
1290   
\settrue
\c_strc_itemgroups_txt
1291   
\startitemgroupitem
}
1292
1293
% \unexpanded\def\strc_itemgroups_start_head
1294
%   {\settrue\c_strc_itemgroups_head
1295
%    \startitemgrouphead}
1296
1297
\unexpanded
\def
\strc_itemgroups_start_items
1298  
{
\dosingleempty
\strc_itemgroups_start_items_indeed
}
1299
1300
\unexpanded
\def
\strc_itemgroups_start_items_indeed
[#
whatever
]
% something got lost
1301  
{
\strc_itemgroups_start_edge
1302     
{
\dorecurse
{
0
\itemgroupparameter
\c!items
}{
\strc_itemgroups_used_symbol
\hss
}
%
1303      
\unskip
}}
1304
1305
% \unexpanded\def\startspecialitemgroupitem[#name]%
1306
%   {\csname\??itemgroupstart\ifcsname\??itemgroupstart#name\endcsname#name\else\v!item\fi\endcsname}
1307
1308
\unexpanded
\def
\startspecialitemgroupitem
[#
name
]
%
1309  
{
\ifcsname
\??itemgroupstart
#
name
\endcsname
1310      
\expandafter\lastnamedcs
1311    
\else
1312      
\expandafter
\strc_itemgroups_start_do_item
1313    
\fi
}
1314
1315
\unexpanded
\def
\stopspecialitemgroupitem
1316  
{
\stopitemgroupitem
}
1317
1318
\letvalue
{
\??itemgroupstart\v!item
}
\strc_itemgroups_start_do_item
1319
\letvalue
{
\??itemgroupstart\v!sub
 
}
\strc_itemgroups_start_subitem
1320
\letvalue
{
\??itemgroupstart\v!sym
 
}
\strc_itemgroups_start_symbol
1321
\letvalue
{
\??itemgroupstart\v!ran
 
}
\strc_itemgroups_start_edge
1322
\letvalue
{
\??itemgroupstart\v!its
 
}
\strc_itemgroups_start_items
1323
\letvalue
{
\??itemgroupstart\v!mar
 
}
\strc_itemgroups_start_margin
1324
\letvalue
{
\??itemgroupstart\v!txt
 
}
\strc_itemgroups_start_text
1325
1326
\def
\optimizelistitemsbreak
1327  
{
\ifcase
\c_strc_itemgroups_column_depth
1328     
\ifconditional
\c_strc_itemgroups_optimize
1329       
\ifcase
\c_strc_itemgroups_max_items
1330       
\orelse\ifnum
\c_strc_itemgroups_max_items
=
\plusthree
1331         
\ifnum
\c_strc_itemgroups_n_of_items
>
\plusone
1332           
\strc_itemgroups_insert_nobreak
1333         
\fi
1334       
\orelse\ifnum
\c_strc_itemgroups_max_items
>
\plusthree
1335         
\ifnum
\c_strc_itemgroups_n_of_items
=
\plustwo
1336           
\ifconditional
\c_strc_itemgroups_intro
1337             
\strc_itemgroups_insert_breakno
1338           
\else
1339             
\strc_itemgroups_insert_nobreak
1340           
\fi
1341         
\orelse\ifnum
\c_strc_itemgroups_max_items
=
\c_strc_itemgroups_n_of_items
\relax
1342           
\strc_itemgroups_insert_nobreak
1343         
\orelse\ifnum
\c_strc_itemgroups_n_of_items
>
\plustwo
1344           
\strc_itemgroups_insert_break
1345         
\else
1346           
\ifconditional
\c_strc_itemgroups_intro
\else
\strc_itemgroups_insert_break
\fi
1347         
\fi
1348       
\fi
1349     
\fi
1350   
\fi
}
1351
1352
\def
\strc_itemgroups_handle_text_item
1353  
{
\scratchdimen
\wd
\b_strc_itemgroups
1354   
\advance
 
\scratchdimen
 
\itemgroupparameter
\c!distance
\relax
1355   
\ifdim
\scratchdimen
>
\d_strc_itemgroups_list_width
1356     
\advance
\scratchdimen
 
-
\d_strc_itemgroups_list_width
1357   
\else
1358     
\scratchdimen
\zeropoint
1359   
\fi
1360   
\llap
{
\hbox
 
to
 
\d_strc_itemgroups_list_width
{
\ifconditional
\c_strc_itemgroups_sub
\llap
{
+
\enspace
}
\fi\box
\b_strc_itemgroups
\hss
}}
% was: \hfill
1361   
\hskip
\scratchdimen
}
1362
1363
\def
\strc_itemgroups_handle_lapped_item_positive
1364  
{
\llap
1365     
{
\dontcomplain
1366      
\hbox
 
to
 
\d_strc_itemgroups_list_width
1367        
{
\ifconditional
\c_strc_itemgroups_sub
1368           
\dostarttagged
\t!ignore
\empty
1369           
\llap
{
+
\enspace
}
%
1370           
\dostoptagged
1371         
\fi
1372         
\strc_itemgroups_left_sym_filler
1373         
\box
\b_strc_itemgroups
 
% can already have a forced widt, only factor handled here
1374         
\hfil
1375         
\hskip
\itemgroupparameter
\c!distance
}}}
1376
1377
\def
\strc_itemgroups_handle_lapped_item_negative
1378  
{
\llap
1379     
{
\ifconditional
\c_strc_itemgroups_sub
1380        
\dostarttagged
\t!ignore
\empty
1381        
\llap
{
+
\enspace
}
%
1382        
\dostoptagged
1383      
\fi
1384      
\box
\b_strc_itemgroups
1385      
\hskip
\leftmargindistance
}}
1386
1387
\def
\strc_itemgroups_handle_groups_text_item
1388  
{
\hbox
1389     
{
\ifconditional
\c_strc_itemgroups_sub
1390        
\dostarttagged
\t!ignore
\empty
1391        
+
\enspace
1392        
\dostoptagged
1393      
\fi
1394      
\box
\b_strc_itemgroups
1395      
\hskip
\interwordspace
}
%
1396   
\nobreak
}
1397
1398
\def
\strc_itemgroups_handle_groups_inline_item
1399  
{
\hbox
 
to
 
\d_strc_itemgroups_list_width
1400     
{
\ifconditional
\c_strc_itemgroups_sub
1401        
\dostarttagged
\t!ignore
\empty
1402        
\llap
{
+
\enspace
}
%
1403        
\dostoptagged
1404      
\fi
1405      
\box
\b_strc_itemgroups
1406      
\hss
}}
 
% was: \hfill
1407
1408
\unexpanded
\def
\strc_itemgroups_start_head_sym
#
text
%
1409  
{
\def
\strc_itemgroups_extra_symbol
{
#
text
}
%
1410   
\settrue
\c_strc_itemgroups_symbol
1411   
\settrue
\c_strc_itemgroups_head
1412   
\strc_itemgroups_start_head
}
1413
1414
\def
\strc_itemgroups_make_symbol_box
1415  
{
\setbox
\b_strc_itemgroups
\autodirhbox
1416     
{
\ifconditional
\c_strc_itemgroups_head
1417        
\ifconditional
\c_strc_itemgroups_symbol
1418          
\strc_itemgroups_insert_extra_reference
1419          
\useitemgroupstyleandcolor
\c!symstyle\c!symcolor
1420          
\strc_itemgroups_extra_symbol
1421        
\else
1422          
\useitemgroupstyleandcolor
\c!headstyle\c!headcolor
1423          
\strc_itemgroups_used_symbol
1424        
\fi
1425      
\else
1426        
\ifconditional
\c_strc_itemgroups_symbol
1427          
\strc_itemgroups_insert_extra_reference
1428          
\useitemgroupstyleandcolor
\c!symstyle\c!symcolor
1429          
\strc_itemgroups_extra_symbol
1430        
\else
1431          
\useitemgroupstyleandcolor
\c!style\c!color
1432          
\strc_itemgroups_used_symbol
1433        
\fi
1434      
\fi
}
%
1435   
\let
\strc_itemgroups_extra_symbol
\empty
1436   
\setfalse
\c_strc_itemgroups_symbol
}
1437
1438
\def
\strc_itemgroups_make_fitting_box
1439  
{
\ifdim
\wd
\b_strc_itemgroups
>
\itemgroupparameter
\c!maxwidth
\relax
1440     
\normalexpanded
{
\global
\setitemgroupparameter
{
\c!maxwidth
}{
\the\wd
\b_strc_itemgroups
}}
%
1441   
\fi
1442   
\ifdim
\d_strc_itemgroups_max_width
>
\zeropoint
1443     
\setbox
\b_strc_itemgroups
\simplealignedbox
1444       
{
\dimexpr
\d_strc_itemgroups_max_width
+
\itemgroupparameter
\c!distance
\relax
}
1445       
{
\itemgroupparameter
\c!itemalign
}
1446       
{
\box
\b_strc_itemgroups
\hskip
\itemgroupparameter
\c!distance
}
%
1447   
\fi
}
1448
1449
\def
\strc_itemgroups_make_aligned_box
1450  
{
\doifsomething
{
\itemgroupparameter
\c!itemalign
}
1451     
{
\setbox
\b_strc_itemgroups
\simplealignedbox
1452        
{
\dimexpr
\d_strc_itemgroups_asked_width
+
\itemgroupparameter
\c!distance
\relax
}
1453        
{
\itemgroupparameter
\c!itemalign
}
1454        
{
\box
\b_strc_itemgroups
\hskip
\itemgroupparameter
\c!distance
}}}
1455
1456
\def
\strc_itemgroups_make_destination_box
1457  
{
\iftrialtypesetting
 
\orelse
 
\ifempty
\m_strc_itemgroups_destination
 
\else
1458     
\setbox
\b_strc_itemgroups
\hbox
{
\directgotobox
{
\box
\b_strc_itemgroups
}
[
\m_strc_itemgroups_destination
]
}
%
1459   
\fi
}
1460
1461
\def
\strc_itemgroups_check_indenting
1462  
{
\setfalse
\c_strc_itemgroups_indented_first
1463   
\ifempty
\m_strc_itemgroups_indenting
 
\else
1464     
\normalexpanded
{
\setupindenting
[
\v!reset
,
\v!yes
,
\m_strc_itemgroups_indenting
]
}
%
1465     
\ifconditional
\c_spac_indentation_indent_first
 
% better is to have a mode
1466       
\doifnot
{
\itemgroupparameter
\c!alignsymbol
}
\v!yes
1467         
{
\settrue
\c_strc_itemgroups_indented_first
}
%
1468     
\fi
1469   
\fi
}
1470
1471
\def
\strc_itemgroups_check_for_repeated
1472  
{
\ifconditional
\c_strc_itemgroups_repeat
1473     
\ifempty
\m_strc_itemgroups_repeat_start
1474       
\edef
\m_strc_itemgroups_repeat_start
{
\currentitemlevel
}
%
1475     
\fi
1476   
\else
1477     
\let
\m_strc_itemgroups_repeat_start
\empty
1478   
\fi
}
1479
1480
\def
\strc_itemgroups_insert_item
1481  
{
\ifconditional
\c_strc_itemgroups_text
 
% again?
1482    
% begin of item
1483   
\else
1484     
\par
 
% done twice?
1485   
\fi
1486   
\advance
\c_strc_itemgroups_n_of_items
\plusone
1487   
\optimizelistitemsbreak
1488   
\strc_itemgroups_check_indenting
1489   
\dontleavehmode
1490   
\ifconditional
\c_strc_itemgroups_indented_first
1491     
\hskip
-
\parindent
1492   
\fi
1493   
\strc_itemgroups_make_symbol_box
1494   
\strc_itemgroups_make_destination_box
1495   
\ifconditional
\c_strc_itemgroups_fitting
1496     
\strc_itemgroups_make_fitting_box
1497   
\else\ifdim
\d_strc_itemgroups_asked_width
>
\zeropoint
1498     
\strc_itemgroups_make_aligned_box
1499   
\fi\fi
1500   
\let
\m_strc_itemgroups_destination
\empty
1501   
\ht
\b_strc_itemgroups
\strutheight
 
% just in case a symbols is not yet available in
1502   
\dp
\b_strc_itemgroups
\strutdepth
  
% the current run (more a mkii mp side artifact)
1503   
\strc_itemgroups_check_for_repeated
1504   
\ifdim
\d_strc_itemgroups_asked_width
<
\zeropoint
\relax
1505     
\strc_itemgroups_handle_lapped_item_negative
1506   
\else
1507     
\ifzeropt
\d_strc_itemgroups_asked_width
1508       
\strc_itemgroups_calculate_list_width
\plusone
1509     
\else
1510       
\strc_itemgroups_calculate_list_width
\c_strc_itemgroups_nesting
1511     
\fi
1512     
\ifconditional
\c_strc_itemgroups_text
1513       
\strc_itemgroups_handle_groups_text_item
1514     
\orelse
\ifconditional
\c_strc_itemgroups_inline
1515       
\strc_itemgroups_handle_groups_inline_item
1516     
\orelse
\ifconditional
\c_strc_itemgroups_txt
1517       
\strc_itemgroups_handle_text_item
1518     
\else
1519       
\strc_itemgroups_handle_lapped_item_positive
1520     
\fi
1521   
\fi
1522   
\setfalse
\c_strc_itemgroups_head
1523   
\setfalse
\c_strc_itemgroups_sub
1524   
\ifconditional
\c_strc_itemgroups_indented_first
1525     
\hskip\parindent
1526   
\fi
1527   
\ignorespaces
}
1528
1529
\def
\strc_itemgroups_start_item_nop
1530  
{
\let
\currentitemreference
\empty
1531   
\strc_itemgroups_increment_item_counter
1532   
\advance
\c_strc_itemgroups_n_of_items
\plusone
1533   
\setbox
\b_strc_itemgroups
\hbox
1534     
{
\useitemgroupstyleandcolor
\c!style\c!color
1535      
\strc_itemgroups_used_symbol
}
%
1536   
\strc_itemgroups_check_for_repeated
1537   
\ignorespaces
}
1538
1539
\setvalue
{
\??itemgroupdistance\v!none
}
%
1540  
{
\let
\m_strc_itemgroups_text_distance
\zeropoint
}
1541
1542
\setvalue
{
\??itemgroupdistance\v!space
}
%
1543  
{
\def
\m_strc_itemgroups_text_distance
{
\interwordspace
\!!plus
\interwordstretch
\!!minus
\interwordshrink
}}
1544
1545
\setvalue
\??itemgroupdistance
 
% catches empty value
1546  
{
\let
\m_strc_itemgroups_text_distance
\zeropoint
}
1547
1548
\unexpanded
\def
\strc_itemgroups_set_text_item_distance
1549  
{
\edef
\m_strc_itemgroups_text_distance
{
\itemgroupparameter
\c!textdistance
}
%
1550   
\ifempty
\m_strc_itemgroups_text_distance
1551     
%
1552   
\orelse\ifcsname
\??itemgroupdistance
\m_strc_itemgroups_text_distance
\endcsname
1553     
\lastnamedcs
1554   
\else
1555     
\strc_itemgroups_set_text_item_distance_indeed
1556   
\fi
}
1557
1558
\def
\strc_itemgroups_set_text_item_distance_indeed
1559  
{
\assignvalue
1560     
\m_strc_itemgroups_text_distance
1561     
\m_strc_itemgroups_text_distance
1562     
{
.
5
\interwordspace
\!!plus
.
5
\emwidth
}
%
1563     
{
\interwordspace
  
\!!plus
  
\emwidth
}
%
1564     
{
\emwidth
         
\!!plus
  
\interwordstretch
\!!minus
\interwordshrink
}}
1565
1566
% \unexpanded\def\strc_itemgroups_default_command
1567
%   {\EveryPar{\ignorespaces}% needed ?
1568
%    \ignorespaces}
1569
1570
\unexpanded
\def
\strc_itemgroups_default_command
1571  
{
\ignorespaces
}
1572
1573
%D Special case:
1574
1575
\unexpanded
\def
\strc_itemgroups_head
#
text
\par
1576  
{
\startitemgrouphead
{
#
text
}}
1577
1578
%D The local commands:
1579
1580
\appendtoks
1581    
\let
\item
            
\strc_itemgroups_start_do_item
1582    
\let
\sub
             
\strc_itemgroups_start_subitem
1583    
\let
\sym
             
\strc_itemgroups_start_symbol
1584    
\let
\ran
             
\strc_itemgroups_start_edge
1585    
\let
\its
             
\strc_itemgroups_start_items
1586    
\let
\mar
             
\strc_itemgroups_start_margin
1587    
\let
\noitem
          
\strc_itemgroups_start_no_item
1588    
\let
\itm
             
\strc_itemgroups_start_do_item
1589    
\let
\but
             
\strc_itemgroups_start_button
1590    
\let
\nop
             
\strc_itemgroups_start_dummy
1591    
\let
\txt
             
\strc_itemgroups_start_text
1592    
\let
\head
            
\strc_itemgroups_head
1593    
\let
\headsym
         
\strc_itemgroups_start_head_sym
1594    
\let
\startitem
       
\startitemgroupitem
1595    
\let
\stopitem
        
\stopitemgroupitem
1596    
\let
\starthead
       
\startitemgrouphead
1597    
\let
\stophead
        
\stopitemgrouphead
1598    
\let
\startspecialitem
\startspecialitemgroupitem
1599    
\let
\stopspecialitem
 
\stopspecialitemgroupitem
1600
\to
 
\itemgroupcommands
1601
1602
\ifx
\currentinterface
 
\s!english
 
\else
1603
1604    
\def
\next
#
1
#
2
{
\ifcsname
#
1
\endcsname\else\let\csname
#
1
\endcsname
#
2
\fi
}
1605
1606    
\etoksapp
\itemgroupcommands
{
%
1607        
\next
{
\v!item
        
}
\strc_itemgroups_start_do_item
1608        
\next
{
\v!sub
         
}
\strc_itemgroups_start_subitem
1609        
\next
{
\v!sym
         
}
\strc_itemgroups_start_symbol
1610        
\next
{
\v!ran
         
}
\strc_itemgroups_start_edge
1611        
\next
{
\v!head
        
}
\strc_itemgroups_head
1612        
\next
{
\v!its
         
}
\strc_itemgroups_start_items
1613        
\next
{
\v!mar
         
}
\strc_itemgroups_start_margin
1614        
\next
{
\v!txt
         
}
\strc_itemgroups_start_text
1615        
\next
{
\e!start\v!item
}
\startitemgroupitem
1616        
\next
{
\e!stop
 
\v!item
}
\stopitemgroupitem
1617        
\next
{
\e!start\v!head
}
\startitemgrouphead
1618        
\next
{
\e!stop
 
\v!head
}
\stopitemgrouphead
1619    
}
1620
1621
\fi
1622
1623
\relaxvalueifundefined
 
\v!item
1624
\relaxvalueifundefined
 
\v!sub
1625
\relaxvalueifundefined
 
\v!sym
1626
\relaxvalueifundefined
 
\v!ran
1627
\relaxvalueifundefined
 
\v!head
1628
\relaxvalueifundefined
 
\v!its
1629
\relaxvalueifundefined
 
\v!mar
1630
\relaxvalueifundefined
 
\v!txt
1631
\relaxvalueifundefined
 
{
\e!start\v!item
}
1632
\relaxvalueifundefined
 
{
\e!stop
 
\v!item
}
1633
\relaxvalueifundefined
 
{
\e!start\v!head
}
1634
\relaxvalueifundefined
 
{
\e!stop
 
\v!head
}
1635
1636
%D A nice example of a plugin:
1637
%D
1638
%D \startbuffer
1639
%D \startitemize[a,random,packed]
1640
%D \startitem first  \stopitem \startitem second \stopitem
1641
%D \startitem third  \stopitem \startitem fourth \stopitem
1642
%D \stopitemize
1643
%D
1644
%D \startitemize[a,random,packed]
1645
%D \startitem first  \stopitem \startitem second \stopitem
1646
%D \startitem third  \stopitem \startitem fourth \stopitem
1647
%D \stopitemize
1648
%D
1649
%D \startitemize[a,packed]
1650
%D \startitem first  \stopitem \startitem second \stopitem
1651
%D \startitem third  \stopitem \startitem fourth \stopitem
1652
%D \stopitemize
1653
%D \stopbuffer
1654
%D
1655
%D \typebuffer \getbuffer
1656
1657
% better collectitems als conditional and a real plugin mechanism (some day)
1658
1659
\newcount
\c_strc_itemgroups_collected_stored
1660
\newcount
\c_strc_itemgroups_collected_done
1661
\newcount
\c_strc_itemgroups_collected_current
1662
1663
% \expandafter\def\expandafter\strc_itemgroups_collected_store\expandafter#\expandafter1\csname\e!stop\v!item\endcsname % use grabuntil
1664
%   {\advance\c_strc_itemgroups_collected_stored\plusone
1665
%    \setvalue{\??itemgroupstack\number\c_strc_itemgroups_collected_stored}{\startitemgroupitem#1\stopitemgroupitem}}
1666
1667
\let
\strc_itemgroups_collected_store
\relax
1668
1669
\normalexpanded
{
\def
\strc_itemgroups_collected_store
#
1
\csname
\e!stop\v!item
\endcsname
}
%
1670  
{
\advance
\c_strc_itemgroups_collected_stored
\plusone
1671   
\setvalue
{
\??itemgroupstack
\number
\c_strc_itemgroups_collected_stored
}{
\startitemgroupitem
#
1
\stopitemgroupitem
}}
1672
1673
\def
\strc_itemgroups_collected_flush_randomize
1674  
{
\collecteditemgroupitem
}
1675
1676
\def
\strc_itemgroups_collected_flush_horizontal
1677  
{
\begingroup
1678   
\scratchcounter
\itemgroupparameter
\c!n
\relax
1679   
\ifnum
\c_strc_itemgroups_collected_done
>
\plusone
1680     
\ifcase
\modulonumber\scratchcounter
\c_strc_itemgroups_collected_done
\relax
1681       
% compensate for rounding errors
1682       
\hfill
 
% \hskip\zeropoint plus \scaledpoint minus \scaledpoint
1683       
\allowbreak
1684     
\fi
1685   
\fi
1686   
\noindent
 
% no \dontleavehmode
1687   
\hbox
 
to
 
\dimexpr
\availablehsize
/
\scratchcounter
\relax
{
\collecteditemgroupitem
\hss
}
%
1688   
\endgroup
}
1689
1690
% \def\strc_itemgroups_collected_flush_indeed
1691
%   {\collecteditemgroupitem
1692
%    \iftrialtypesetting
1693
%      \undefinevalue{\??itemgroupstack\number\c_strc_itemgroups_collected_current}%
1694
%    \fi}
1695
1696
\def
\strc_itemgroups_collected_flush_indeed
1697  
{
\collecteditemgroupitem
1698   
\undefinevalue
{
\??itemgroupstack
\number
\c_strc_itemgroups_collected_current
}}
1699
1700
\def
\strc_itemgroups_collected_flush
1701  
{
\ifconditional
\c_strc_itemgroups_randomize
1702     
\getrandomcount
\c_strc_itemgroups_collected_current
\plusone
\c_strc_itemgroups_collected_stored
1703   
\else
1704     
\advance
\c_strc_itemgroups_collected_current
\plusone
1705   
\fi
1706   
\ifcsname
\??itemgroupstack
\number
\c_strc_itemgroups_collected_current
\endcsname
1707     
\edef
\collecteditemgroupitem
{
\lastnamedcs
}
%
1708     
\ifconditional
\c_strc_itemgroups_horizontal
1709       
\strc_itemgroups_collected_flush_horizontal
1710     
\else
1711       
\strc_itemgroups_collected_flush_indeed
1712     
\fi
1713     
\advance
\c_strc_itemgroups_collected_done
\plusone
1714   
\fi
1715   
\ifnum
\c_strc_itemgroups_collected_done
<
\c_strc_itemgroups_collected_stored
1716     
\expandafter
\strc_itemgroups_collected_flush
1717   
\fi
}
1718
1719
\unexpanded
\def
\stopcollectitems
1720  
{
\ifconditional
\c_strc_itemgroups_collecting
1721     
\c_strc_itemgroups_collected_done
   
\zerocount
1722     
\c_strc_itemgroups_collected_current
\zerocount
1723     
\ifnum
\c_strc_itemgroups_collected_stored
>
\zerocount
1724       
\ifconditional
\c_strc_itemgroups_horizontal
1725         
\strc_itemgroups_before_command
1726         
\setfalse
\c_strc_itemgroups_first
1727         
\strc_itemgroups_collected_flush
1728        
%\strc_itemgroups_after_command % triggered elsewhere
1729       
\else
1730         
\strc_itemgroups_collected_flush
1731       
\fi
1732     
\fi
1733   
\fi
}
1734
1735
\unexpanded
\def
\startcollectitems
1736  
{
\ifconditional
\c_strc_itemgroups_collecting
1737     
\c_strc_itemgroups_collected_stored
\zerocount
1738     
\letvalue
{
\e!start\v!item
}
\strc_itemgroups_collected_store
1739   
\fi
}
1740
1741
%D Left-overs:
1742
1743
\unexpanded
\def
\item
1744  
{
\strc_itemgroups_item_alone
}
1745
1746
\def
\strc_itemgroups_item_alone
[#
category
]#
text
\par
1747  
{
\doifelsesomething
{
#
category
}{
\startitemgroup
[#
category
]
}{
\startitemgroup
[
\v!itemize
]
}
%
1748   
\startitem
#
text
\stopitem
1749   
\stopitemgroup
}
1750
1751
\unexpanded
\def
\head
1752  
{
\strc_itemgroups_head_alone
}
1753
1754
\def
\strc_itemgroups_head_alone
[#
category
]#
head
\par
#
body
\par
1755  
{
\doifelsesomething
{
#
category
}{
\startitemgroup
[#
category
]
}{
\startitemgroup
[
\v!itemize
]
}
%
1756   
\starthead
{
#
head
}
#
body
\stophead
1757   
\stopitemgroup
}
1758
1759
\setuvalue
{
\e!start\v!item
}
%
1760  
{
\startitemgroup
[
\v!itemize
]
%
1761   
\startitemgroupitem
1762   
\setuvalue
{
\e!stop\v!item
}{
\stopitemgroupitem
\stopitemgroup
}}
1763
1764
% \def\sym#text%
1765
%   {\noindent
1766
%    \begingroup
1767
%    \setbox\scratchbox\hbox{\settrialtypesetting#text}%
1768
%    \setbox\scratchbox\hbox\ifdim\wd\scratchbox<1em to 1.5\else spread 1\fi em{#text\hfil}%
1769
%    \normalexpanded{\box\scratchbox\endgroup\hangindent\the\wd\scratchbox}%
1770
%    \ignorespaces}
1771
1772
%D End of plugin.
1773
1774
%D Something for tables:
1775
1776
\unexpanded
\def
\itemtag
1777  
{
\dosingleempty
\strc_itemgroups_item_tag
}
1778
1779
\unexpanded
\def
\strc_itemgroups_item_tag
[#
reference
]
% we can reuse more
1780  
{
\def
\currentitemreference
{
#
reference
}
%
1781   
\iftrialtypesetting
1782     
\strc_counters_save
\v_strc_itemgroups_counter
1783     
\strc_itemgroups_increment_item_counter
1784     
\strc_itemgroups_insert_item_tag_indeed
1785     
\strc_counters_restore
\v_strc_itemgroups_counter
1786   
\else
1787     
\strc_itemgroups_increment_item_counter
1788     
\strc_itemgroups_insert_item_tag_indeed
1789   
\fi
}
1790
1791
\def
\strc_itemgroups_insert_item_tag_indeed
1792  
{
\letitemgroupparameter
\c!distance
\zeropoint
1793   
%letitemgroupparameter\c!width\zeropoint
1794   
\strc_itemgroups_make_symbol_box
1795   
\strc_itemgroups_make_destination_box
1796   
\let
\m_strc_itemgroups_destination
\empty
1797   
\ht
\b_strc_itemgroups
\strutheight
1798   
\dp
\b_strc_itemgroups
\strutdepth
1799   
\box
\b_strc_itemgroups
1800   
\ignorespaces
}
1801
1802
%D Done again.
1803
1804
\setupitemgroup
1805  
[
\c!margin
=
\zeropoint
,
1806   
\c!leftmargin
=
\zeropoint
,
1807   
\c!rightmargin
=
\zeropoint
,
1808   
\c!leftmargindistance
=
\zeropoint
,
1809   
\c!rightmargindistance
=
\zeropoint
,
1810   
\c!indentnext
=
\v!yes
,
1811   
\c!width
=
1
.
5
\emwidth
,
1812   
\c!factor
=
0
,
1813  
%\c!distance=.5em, % is now:
1814   
\c!step
=
.
5
\emwidth
,
 
% deals with broad
1815   
\c!distance
=
\zeropoint
,
1816  
%\c!align=\v!normal, % definitely not \v!normal !
1817  
%\c!symalign=,
1818  
%\c!color=,
1819  
%\c!indenting=, % untouched if empty
1820  
%\c!style=,
1821   
\c!marstyle
=
\v!type
,
1822  
%\c!symstyle=,
1823  
%\c!headstyle=,
1824  
%\c!marcolor=,
1825  
%\c!symcolor=,
1826  
%\c!headcolor=,
1827  
%\c!beforehead=,
1828   
\c!symcolor
=
\itemgroupparameter
\c!color
,
 
% new per 2012.01.17
1829   
\c!symstyle
=
\itemgroupparameter
\c!style
,
 
% new per 2012.01.17
1830   
\c!afterhead
=
\blank
,
1831   
\c!before
=
\blank
,
1832   
\c!inbetween
=
\blank
,
1833   
\c!after
=
\blank
,
1834  
%\c!stopper=.,
1835   
\c!placestopper
=
\v!yes
,
1836   
\c!stopper
=
.
,
1837  
%\c!inner=,
1838   
\c!n
=
2
,
1839   
\c!items
=
4
,
1840   
\c!levels
=
1
0
,
1841   
\c!lefttext
=(
,
1842   
\c!righttext
=)
,
1843   
\c!start
=
1
,
1844   
\c!packcriterium
=
\zerocount
,
1845   
\c!criterium
=
\v!all
,
 
% permits 0 and negative numbers
1846  
%\c!option=,
1847   
\c!textdistance
=
\v!space
,
 
% none big medium small <dimension>
1848   
\c!command
=
\strc_itemgroups_default_command
,
1849   
\c!indenting
=
\v!next
,
1850  
%\c!alignsymbol=v!no,
1851   
\c!symbol
=
\currentitemlevel
,
1852   
\c!prefix
=
\v!no
,
1853  
%\c!prefixstopper=.,
1854  
%\c!prefixseparatorset=,
1855  
%\c!prefixconversion=,
1856  
%\c!prefixconversionset=,
1857  
%\c!prefixset=,
1858  
%\c!prefixsegments=1:100,
1859   
\c!prefixconnector
=
.
,
1860   
\c!numberseparatorset
=
,
1861   
\c!numberconversionset
=
,
1862   
\c!numberstopper
=
.
,
1863   
\c!numbersegments
=
1
]
1864
1865
\defineitemgroup
1866  
[
\v!itemize
]
1867
1868
%D This is really ugly I should get rid of the global mess, whuch is a side
1869
%D effect of the simple \type {\item} interface that we're stuck with for
1870
%D compatibility reasons. See footnotes for usage. It's probablynot robust
1871
%D for mixed itemgroups so in the end I need to get rid of the globals. One
1872
%D problem is that counters are set.
1873
1874
\defineitemgroup
1875  
[
\v!itemize
:
\v!note
]
1876
1877
\def
\strc_itemgroups_push
1878  
{
\edef
\strc_itemgroups_pop
1879     
{
\xdef\noexpand
\currentitemlevel
{
\currentitemlevel
}
%
1880      
\global
\c_strc_itemgroups_nesting
     
\the
\c_strc_itemgroups_nesting
     
\relax
1881      
\global
\c_strc_itemgroups_column_depth
\the
\c_strc_itemgroups_column_depth
\relax
}
%
1882   
\global
\c_strc_itemgroups_column_depth
\zerocount
1883   
\global
\c_strc_itemgroups_nesting
     
\zerocount
1884   
\glet
\currentitemlevel
\!!zerocount
1885   
\unexpanded
\def
\startitemize
{
\startitemgroup
[
\v!itemize
:
\v!note
]
}
%
1886   
\unexpanded
\def
\stopitemize
 
{
\stopitemgroup
}}
1887
1888
\let
\strc_itemgroups_pop
\relax
1889
1890
\protect
 
\endinput
1891