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-rw-r--r--macros/latex/contrib/tasks/README31
-rw-r--r--macros/latex/contrib/tasks/tasks.cfg53
-rw-r--r--macros/latex/contrib/tasks/tasks.sty778
-rw-r--r--macros/latex/contrib/tasks/tasks_en.pdfbin0 -> 459628 bytes
-rw-r--r--macros/latex/contrib/tasks/tasks_en.tex581
5 files changed, 1443 insertions, 0 deletions
diff --git a/macros/latex/contrib/tasks/README b/macros/latex/contrib/tasks/README
new file mode 100644
index 0000000000..48d949ffac
--- /dev/null
+++ b/macros/latex/contrib/tasks/README
@@ -0,0 +1,31 @@
+--------------------------------------------------------------------------
+the TASKS package v0.12 2016/08/13
+
+ Horizontal columned lists.
+
+--------------------------------------------------------------------------
+Clemens Niederberger
+Web: https://github.com/cgnieder/tasks/
+E-Mail: contact@mychemistry.eu
+--------------------------------------------------------------------------
+Copyright 2013-2016 Clemens Niederberger
+
+This work may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either version 1.3
+of this license or (at your option) any later version.
+The latest version of this license is in
+ http://www.latex-project.org/lppl.txt
+and version 1.3 or later is part of all distributions of LaTeX
+version 2005/12/01 or later.
+
+This work has the LPPL maintenance status `maintained'.
+
+The Current Maintainer of this work is Clemens Niederberger.
+--------------------------------------------------------------------------
+The tasks package consists of the files
+ - tasks.sty, tasks.cfg, tasks_en.tex, task_en.pdf
+ - README
+--------------------------------------------------------------------------
+If you have any ideas, questions, suggestions or bugs to report, please
+feel free to contact me.
+--------------------------------------------------------------------------
diff --git a/macros/latex/contrib/tasks/tasks.cfg b/macros/latex/contrib/tasks/tasks.cfg
new file mode 100644
index 0000000000..7a62d42383
--- /dev/null
+++ b/macros/latex/contrib/tasks/tasks.cfg
@@ -0,0 +1,53 @@
+% --------------------------------------------------------------------------
+% the TASKS package
+%
+% Horizontal columned lists.
+%
+% --------------------------------------------------------------------------
+% Clemens Niederberger
+% Web: https://github.com/cgnieder/tasks/
+% E-Mail: contact@mychemistry.eu
+% --------------------------------------------------------------------------
+% Copyright 2013-2016 Clemens Niederberger
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Clemens Niederberger.
+% --------------------------------------------------------------------------
+% If you have any ideas, questions, suggestions or bugs to report, please
+% feel free to contact me.
+% --------------------------------------------------------------------------
+% further instances for the `tasks' environment
+\ProvidesFile{tasks.cfg}
+ [%
+ \csname c_tasks_date_tl\endcsname\space
+ v\csname c_tasks_version_tl\endcsname\space
+ tasks instances%
+ ]
+
+% ITEMIZE:
+\DeclareInstance {tasks} {itemize} {default}
+ {
+ enumerate = false ,
+ label-width = 1.125em
+ }
+
+% ENUMERATE:
+\DeclareInstance {tasks} {enumerate} {default}
+ { counter-format = tsk. }
+
+% MULTIPLECHOICE
+\DeclareInstance {tasks} {multiplechoice} {default}
+ {
+ enumerate = false ,
+ label = \choicebox
+ }
+
diff --git a/macros/latex/contrib/tasks/tasks.sty b/macros/latex/contrib/tasks/tasks.sty
new file mode 100644
index 0000000000..81e265ed5e
--- /dev/null
+++ b/macros/latex/contrib/tasks/tasks.sty
@@ -0,0 +1,778 @@
+% --------------------------------------------------------------------------
+% the TASKS package
+%
+% Horizontal columned lists.
+%
+% --------------------------------------------------------------------------
+% Clemens Niederberger
+% Web: https://github.com/cgnieder/tasks/
+% E-Mail: contact@mychemistry.eu
+% --------------------------------------------------------------------------
+% Copyright 2013-2016 Clemens Niederberger
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Clemens Niederberger.
+% --------------------------------------------------------------------------
+% If you have any ideas, questions, suggestions or bugs to report, please
+% feel free to contact me.
+% --------------------------------------------------------------------------
+\RequirePackage { expl3 , xparse , epic , cntformats , xtemplate , environ }
+\ExplSyntaxOn
+
+\tl_const:Nn \c_tasks_name_tl {tasks}
+\tl_const:Nn \c_tasks_date_tl {2016/08/13}
+\tl_const:Nn \c_tasks_version_tl {0.12}
+\tl_const:Nn \c_tasks_info_tl {Horizontal columned lists}
+
+\ProvidesExplPackage
+ {\c_tasks_name_tl}
+ {\c_tasks_date_tl}
+ {\c_tasks_version_tl}
+ {\c_tasks_info_tl \c_space_tl (CN)}
+
+% --------------------------------------------------------------------------
+% variants of kernel functions:
+\cs_generate_variant:Nn \tl_if_eq:nnTF { V }
+\cs_generate_variant:Nn \tl_if_eq:nnT { V }
+
+% --------------------------------------------------------------------------
+% variables:
+\seq_new:N \l__tasks_seq
+
+\int_new:N \l__tasks_depth_int
+\int_new:N \g__tasks_int
+\int_new:N \g__tasks_total_items_int
+\int_new:N \l__tasks_columns_int
+\int_new:N \l__tasks_rows_int
+\int_new:N \g__tasks_current_col_num_int
+\int_new:N \g__tasks_current_row_num_int
+\int_new:N \l__tasks_item_columns_int
+
+\bool_new:N \l__tasks_enumerate_bool
+\bool_new:N \l__tasks_resume_bool
+\bool_new:N \l__tasks_load_tasks_bool
+\bool_new:N \l__tasks_label_width_bool
+\bool_new:N \l__tasks_item_indent_bool
+\bool_new:N \l__tasks_label_offset_bool
+\bool_new:N \l__tasks_custom_label_bool
+\bool_new:N \l__tasks_custom_after_item_skip_bool
+\bool_new:N \l__tasks_debug_bool
+\bool_new:N \l__tasks_item_full_line_bool
+\bool_new:N \l__tasks_item_rest_of_line_bool
+
+\tl_new:N \l__tasks_instance_tl
+\tl_new:N \l__tasks_label_tl
+\tl_new:N \l__tasks_custom_label_tl
+\tl_new:N \l__tasks_label_pattern_tl
+\tl_new:N \l__tasks_custom_label_pattern_tl
+\tl_new:N \l__tasks_label_format_tl
+\tl_new:N \l__tasks_custom_label_format_tl
+\tl_new:N \l__tasks_item_format_tl
+\tl_new:N \l__tasks_custom_item_format_tl
+\tl_new:N \l__tasks_item_fill_left_tl
+\tl_new:N \l__tasks_item_fill_right_tl
+\tl_new:N \l__tasks_label_align_tl
+% \tl_new:N \task
+\tl_new:N \l__tasks_item_tl
+\tl_new:N \l__tasks_tmp_label_tl
+
+\dim_new:N \l__tasks_item_indent_dim
+\dim_new:N \l__tasks_item_default_indent_dim
+\dim_new:N \l__tasks_item_width_dim
+\dim_new:N \l__tasks_label_width_dim
+\dim_new:N \l__tasks_label_default_width_dim
+\dim_new:N \l__tasks_label_offset_dim
+\dim_new:N \l__tasks_label_default_offset_dim
+\dim_new:N \l__tasks_column_sep_dim
+
+\skip_new:N \l__tasks_after_item_skip
+\skip_new:N \l__tasks_custom_after_item_skip
+\skip_new:N \l__tasks_before_list_skip
+\skip_new:N \l__tasks_after_list_skip
+
+\coffin_new:N \l__tasks_item_coffin
+\coffin_new:N \l__tasks_label_coffin
+
+\NewCounterPattern* [ tasks ] { task } { tsk }
+\ReadCounterFrom [ tasks ] { task } \g__tasks_int
+
+% temporary variables:
+\int_new:N \l__tasks_tmpa_int
+\int_new:N \l__tasks_tmpb_int
+\tl_new:N \l__tasks_tmpa_tl
+\coffin_new:N \l__tasks_tmpa_coffin
+
+\cs_new:Npn \__tasks_debug:n #1
+ {
+ \bool_if:NTF \l__tasks_debug_bool
+ { \fbox {#1} }
+ { \use:n {#1} }
+ }
+
+% --------------------------------------------------------------------------
+% collect the tasks:
+\cs_new_protected:Npn \__tasks_collect_tasks:nww #1#2 \end #3
+ {
+ \tl_put_right:Nn \l__tasks_body_tl {#1}
+ \end {#3}
+ \tl_if_eq:nnF {#1} {#3}
+ { \__tasks_collect_tasks:nww {#1} }
+ }
+
+% #1: instance
+% #2: number of columns
+% #3: item separator
+% #4: environment body
+\cs_new_protected:Npn \__tasks:nnnn #1#2#3#4
+ {
+ \bool_if:NT \l__tasks_debug_bool { \dim_set:Nn \fboxsep {0pt} }
+ \seq_set_split:Nnn \l__tasks_seq {#3} {#4}
+ % remove the first (empty) item:
+ \seq_pop_left:NN \l__tasks_seq \l__tasks_tmpa_tl
+ \tl_if_blank:VF \l__tasks_tmpa_tl { \@noitemerr }
+ \int_gset:Nn \g__tasks_total_items_int
+ { \seq_count:N \l__tasks_seq }
+ \UseInstance {tasks} {#1}
+ { \g__tasks_total_items_int }
+ {#2}
+ { \l__tasks_custom_label_pattern_tl }
+ % just to be sure:
+ \seq_clear:N \l__tasks_seq
+ }
+\cs_generate_variant:Nn \__tasks:nnnn { VnnV }
+
+% #1: label
+% #2: item format
+% #3: item
+\cs_new_protected:Npn \__tasks_task:nnn #1#2#3
+ {
+ % start a new item line if \l__tasks_item_full_line_bool
+ \bool_if:NT \l__tasks_item_full_line_bool
+ {
+ % add skip if we were in the middle of a line, i.e., in horizontal
+ % mode:
+ \mode_if_horizontal:T
+ { \skip_vertical:N \l__tasks_after_item_skip }
+ \tasks_new_row:
+ }
+ % step column position:
+ \int_gincr:N \g__tasks_current_col_num_int
+ \dim_set:Nn \l__tasks_item_width_dim
+ {
+ \bool_if:NTF \l__tasks_item_full_line_bool
+ { \linewidth }
+ {
+ (
+ \linewidth
+ - \l__tasks_columns_int \l__tasks_column_sep_dim
+ + \l__tasks_column_sep_dim
+ ) / \l__tasks_columns_int
+ }
+ - \l__tasks_depth_int \l__tasks_item_indent_dim
+ \bool_if:NT \l__tasks_debug_bool { -2\fboxrule }
+ }
+ \__tasks_gset_rows_num:NN
+ \g__tasks_total_items_int
+ \l__tasks_columns_int
+ % set \g__tasks_current_col_num_int to 1 if at the start of a row,
+ % then also step \g__tasks_current_row_num_int :
+ \int_compare:nNnT
+ { \g__tasks_current_col_num_int } > { \l__tasks_columns_int }
+ {
+ \int_gset:Nn \g__tasks_current_col_num_int { 1 }
+ \int_incr:N \g__tasks_current_row_num_int
+ }
+ \bool_if:NT \l__tasks_item_rest_of_line_bool
+ {
+ \int_set:Nn \l__tasks_tmpa_int
+ { \l__tasks_columns_int - \g__tasks_current_col_num_int + 1 }
+ \int_compare:nNnTF { \l__tasks_item_columns_int } = { 0 }
+ {
+ \int_set:Nn \l__tasks_tmpb_int { \l__tasks_tmpa_int - 1 } % 8
+ }
+ {
+ \int_compare:nNnTF
+ { \l__tasks_tmpa_int } > { \l__tasks_item_columns_int }
+ { \int_set_eq:NN \l__tasks_tmpa_int \l__tasks_item_columns_int }
+ { \int_zero:N \l__tasks_item_columns_int }
+ \bool_if:nT
+ {
+ \l__tasks_item_rest_of_line_bool &&
+ !\int_compare_p:nNn { \l__tasks_item_columns_int} = { 0 }
+ }
+ {
+ \int_gadd:Nn \g__tasks_current_col_num_int
+ { \l__tasks_item_columns_int -1 }
+ \int_gadd:Nn \g__tasks_total_items_int
+ { \l__tasks_item_columns_int -1 }
+ }
+ \int_set:Nn \l__tasks_tmpb_int { \l__tasks_tmpa_int -1 }
+ }
+ \dim_set:Nn \l__tasks_item_width_dim
+ {
+ \l__tasks_tmpa_int \l__tasks_item_width_dim
+ + \l__tasks_tmpb_int \l__tasks_column_sep_dim
+ + \l__tasks_tmpb_int \l__tasks_item_indent_dim
+ \bool_if:NT \l__tasks_debug_bool
+ { + \int_eval:n { \l__tasks_tmpb_int * 2 } \fboxrule }
+ }
+ }
+ % set the item box:
+ \hcoffin_set:Nn \l__tasks_item_coffin
+ {
+ \vcoffin_set:Nnn \l__tasks_tmpa_coffin
+ { \l__tasks_item_width_dim }
+ { \__tasks_setup: #2 {#3} \strut }
+ \__tasks_debug:n
+ {
+ \coffin_typeset:Nnnnn \l__tasks_tmpa_coffin
+ {l} {T} {0pt} {0pt}
+ }
+ }
+ % set the label box:
+ \hcoffin_set:Nn \l__tasks_label_coffin
+ {
+ \vcoffin_set:Nnn \l__tasks_tmpa_coffin
+ {
+ \l__tasks_label_width_dim
+ \bool_if:NT \l__tasks_debug_bool {-2\fboxrule }
+ }
+ {
+ \noindent
+ \tl_use:N \l__tasks_item_fill_left_tl
+ \strut #1
+ \tl_use:N \l__tasks_item_fill_right_tl
+ }
+ \__tasks_debug:n
+ {
+ \coffin_typeset:Nnnnn \l__tasks_tmpa_coffin
+ {l} {T} {0pt} {0pt}
+ }
+ }
+ % attach the label box at the left of the item box, shifted by
+ % \l__tasks_label_offset_dim :
+ \coffin_attach:NnnNnnnn
+ \l__tasks_item_coffin {l} {T}
+ \l__tasks_label_coffin {l} {T}
+ {
+ \dim_compare:nNnTF
+ { \l__tasks_item_indent_dim }
+ <
+ { \l__tasks_label_offset_dim + \l__tasks_label_width_dim }
+ {0pt}
+ { - \l__tasks_label_width_dim - \l__tasks_label_offset_dim }
+ } { 0pt }
+ % when a new row starts enter vertical mode:
+ \int_compare:nNnT { \g__tasks_current_col_num_int } = { 1 }
+ { \skip_vertical:N \c_zero_skip }
+ % skip horizontally by \l__tasks_item_indent_dim
+ \noindent
+ \skip_horizontal:N \l__tasks_item_indent_dim
+ % typeset the item (with the attached label protruding to the left):
+ \coffin_typeset:Nnnnn \l__tasks_item_coffin
+ {l}
+ {T}
+ {0pt}
+ {0pt}
+ \bool_if:nT
+ {
+ \l__tasks_item_full_line_bool ||
+ (
+ \l__tasks_item_rest_of_line_bool &&
+ \int_compare_p:nNn { \l__tasks_item_columns_int } = { 0 }
+ )
+ }
+ { \tasks_new_row: }
+ % are we between items in a row? The skip by \l__tasks_column_sep_dim :
+ \int_compare:nNnT
+ { \g__tasks_current_col_num_int } < { \l__tasks_columns_int }
+ { \skip_horizontal:N \l__tasks_column_sep_dim }
+ % if we ended a row and a new row is still to come skip vertically by
+ % \l__tasks_after_item_skip :
+ \bool_if:nT
+ {
+ ( \int_compare_p:nNn { \g__tasks_current_col_num_int } = { \l__tasks_columns_int } )
+ &&
+ ( \int_compare_p:n { \g__tasks_current_row_num_int != \l__tasks_rows_int } )
+ }
+ { \skip_vertical:N \l__tasks_after_item_skip }
+ % clean up:
+ \coffin_clear:N \l__tasks_item_coffin
+ \coffin_clear:N \l__tasks_label_coffin
+ \coffin_clear:N \l__tasks_tmpa_coffin
+ \bool_set_false:N \l__tasks_item_full_line_bool
+ \bool_set_false:N \l__tasks_item_rest_of_line_bool
+ }
+\cs_generate_variant:Nn \__tasks_task:nnn { VVV }
+
+\cs_new_protected:Npn \__tasks_setup:
+ {
+ \dim_set:Nn \parskip { 0pt }
+ \skip_set:Nn \parfillskip { 0pt plus 1fil }
+ \dim_set_eq:NN \parskip \parsep
+ \dim_set_eq:NN \parindent \listparindent
+ \noindent
+ \dim_compare:nNnT
+ { \l__tasks_item_indent_dim }
+ <
+ { \l__tasks_label_offset_dim + \l__tasks_label_width_dim }
+ {
+ \skip_horizontal:n
+ {
+ \l__tasks_label_offset_dim
+ + \l__tasks_label_width_dim
+ - \l__tasks_item_indent_dim
+ }
+ }
+ \strut
+ }
+
+\cs_new_protected:Npn \__tasks_gset_rows_num:NN #1#2
+ {
+ \int_gset:Nn \l__tasks_rows_int { \int_div_truncate:nn {#1} {#2} }
+ \int_compare:nNnT { \int_mod:nn {#1} {#2} } > { 0 }
+ { \int_gincr:N \l__tasks_rows_int }
+ }
+
+\cs_new_protected:Npn \__tasks_label_align:n #1
+ {
+ \str_case:nnF {#1}
+ {
+ {left}
+ {
+ \tl_clear:N \l__tasks_item_fill_left_tl
+ \tl_set_eq:NN \l__tasks_item_fill_right_tl \hfill
+ }
+ {right}
+ {
+ \tl_set_eq:NN \l__tasks_item_fill_left_tl \hfill
+ \tl_clear:N \l__tasks_item_fill_right_tl
+ }
+ {center}
+ {
+ \tl_set_eq:NN \l__tasks_item_fill_left_tl \hfill
+ \tl_set_eq:NN \l__tasks_item_fill_right_tl \hfill
+ }
+ }
+ {
+ \tl_clear:N \l__tasks_item_fill_left_tl
+ \tl_set_eq:NN \l__tasks_item_fill_right_tl \hfill
+ }
+ }
+\cs_generate_variant:Nn \__tasks_label_align:n { V }
+\__tasks_label_align:n {left}
+
+% --------------------------------------------------------------------------
+% the `tasks' object:
+% #1: number of items
+% #2: number of columns
+% #3: label-format
+\DeclareObjectType {tasks} {3}
+% the `default' template interface:
+\DeclareTemplateInterface {tasks} {default} {3}
+ {
+ enumerate : boolean = true ,
+ label : tokenlist ,
+ indent : length = 2.5em ,
+ counter-format : tokenlist = tsk[a]) ,
+ label-format : tokenlist ,
+ label-width : length = 1em ,
+ label-offset : length = .3333em ,
+ item-format : tokenlist ,
+ after-item-skip : skip = 1ex plus 1ex minus 1ex
+ }
+
+% in the next three commands we want a really unlikely to occur marker; for
+% this we use $ with unusual catcode in ``$tasks$default$label$'':
+\cs_set:Nx \__tasks_restore_dollar:
+ { \char_set_catcode:nn {36} { \char_value_catcode:n {36} } }
+\char_set_catcode_alignment:N \$
+
+% the `default' template code:
+\DeclareTemplateCode {tasks} {default} {3}
+ {
+ enumerate = \l__tasks_enumerate_bool ,
+ label = \l__tasks_label_tl ,
+ indent = \l__tasks_item_default_indent_dim ,
+ counter-format = \l__tasks_label_pattern_tl ,
+ label-format = \l__tasks_label_format_tl ,
+ label-width = \l__tasks_label_default_width_dim ,
+ label-offset = \l__tasks_label_default_offset_dim ,
+ item-format = \l__tasks_item_format_tl ,
+ after-item-skip = \l__tasks_after_item_skip
+ }
+ {
+ \AssignTemplateKeys
+ \bool_if:NF \l__tasks_label_width_bool
+ {
+ \dim_set_eq:NN
+ \l__tasks_label_width_dim
+ \l__tasks_label_default_width_dim
+ }
+ \bool_if:NF \l__tasks_item_indent_bool
+ {
+ \dim_set_eq:NN
+ \l__tasks_item_indent_dim
+ \l__tasks_item_default_indent_dim
+ }
+ \bool_if:NF \l__tasks_label_offset_bool
+ {
+ \dim_set_eq:NN
+ \l__tasks_label_offset_dim
+ \l__tasks_label_default_offset_dim
+ }
+ % \dim_compare:nNnT
+ % { \l__tasks_item_indent_dim }
+ % <
+ % { \l__tasks_label_offset_dim + \l__tasks_label_width_dim }
+ % {
+ % \dim_set:Nn \l__tasks_item_indent_dim
+ % { \l__tasks_label_offset_dim + \l__tasks_label_width_dim }
+ % }
+ \bool_if:NT \l__tasks_custom_after_item_skip_bool
+ {
+ \skip_set_eq:NN
+ \l__tasks_after_item_skip
+ \l__tasks_custom_after_item_skip
+ }
+ \bool_if:NT \l__tasks_custom_label_bool
+ {
+ \tl_set_eq:NN
+ \l__tasks_label_tl
+ \l__tasks_custom_label_tl
+ \bool_set_false:N \l__tasks_enumerate_bool
+ }
+ \__tasks_label_align:V \l__tasks_label_align_tl
+ % need this for enumerate list:
+ \bool_if:nT { !\l__tasks_resume_bool && \l__tasks_enumerate_bool }
+ { \int_gzero:N \g__tasks_int }
+ \int_set:Nn \l__tasks_columns_int {#2}
+ % set all the items in their own coffins and join with the ground:
+ \int_gzero:N \g__tasks_current_col_num_int
+ \int_set:Nn \g__tasks_current_row_num_int {1}
+ \tl_if_blank:VF \l__tasks_custom_label_pattern_tl
+ {
+ \tl_set_eq:NN
+ \l__tasks_label_pattern_tl
+ \l__tasks_custom_label_pattern_tl
+ }
+ \tl_if_blank:VF \l__tasks_custom_label_format_tl
+ {
+ \tl_set_eq:NN
+ \l__tasks_label_format_tl
+ \l__tasks_custom_label_format_tl
+ }
+ \tl_if_blank:VF \l__tasks_custom_item_format_tl
+ {
+ \tl_set_eq:NN
+ \l__tasks_item_format_tl
+ \l__tasks_custom_item_format_tl
+ }
+ \seq_map_inline:Nn \l__tasks_seq
+ {
+ \__tasks_read_item:www ##1 \q_stop
+ \bool_if:NTF \l__tasks_enumerate_bool
+ {
+ \tl_if_eq:VnT \l__tasks_tmp_label_tl { $tasks$default$label$ }
+ {
+ \int_gincr:N \g__tasks_int
+ \SaveCounterPatternFrom [tasks]
+ \l__tasks_tmpa_tl
+ \l__tasks_label_tl
+ \l__tasks_label_pattern_tl
+ \cs_gset:Npx \@currentlabel { \l__tasks_label_tl }
+ }
+ }
+ {
+ \tl_if_blank:VT \l__tasks_label_tl
+ { \tl_set_eq:NN \l__tasks_label_tl \labelitemi }
+ }
+ \tl_put_left:NV \l__tasks_label_tl \l__tasks_label_format_tl
+ % \tl_put_left:NV \l__tasks_item_tl \l__tasks_item_format_tl
+ \tl_if_eq:VnTF \l__tasks_tmp_label_tl { $tasks$default$label$ }
+ {
+ \__tasks_task:VVV
+ \l__tasks_label_tl
+ \l__tasks_item_format_tl
+ \l__tasks_item_tl
+ }
+ {
+ \__tasks_task:VVV
+ \l__tasks_tmp_label_tl
+ \l__tasks_item_format_tl
+ \l__tasks_item_tl
+ \tl_clear:N \l__tasks_tmp_label_tl
+ }
+ }
+ }
+
+\cs_new_protected:Npn \__tasks_read_item:www
+ {
+ \peek_meaning_remove:NTF !
+ {
+ \bool_set_true:N \l__tasks_item_full_line_bool
+ \__tasks_read_item_aux:ww
+ }
+ {
+ \peek_meaning_remove:NTF *
+ {
+ \bool_set_true:N \l__tasks_item_rest_of_line_bool
+ \__tasks_read_item_rest_of_line:ww
+ }
+ { \__tasks_read_item_aux:ww }
+ }
+ }
+
+\cs_new_protected:Npn \__tasks_read_item_rest_of_line:ww
+ {
+ \peek_meaning:NTF ( % )
+ { \__tasks_read_item_rest_of_line_aux:ww }
+ { \__tasks_read_item_rest_of_line_aux:ww (0) }
+ }
+
+\cs_new_protected:Npn \__tasks_read_item_rest_of_line_aux:ww (#1)
+ {
+ \int_set:Nn \l__tasks_item_columns_int {#1}
+ \__tasks_read_item_aux:ww
+ }
+
+\cs_new_protected:Npn \__tasks_read_item_aux:ww
+ {
+ \peek_meaning:NTF [ % ]
+ { \__tasks_read_item_aux_ii:ww }
+ { \__tasks_read_item_aux_ii:ww [$tasks$default$label$] }
+ }
+
+\cs_new_protected:Npn \__tasks_read_item_aux_ii:ww [#1]#2 \q_stop
+ {
+ \tl_set:Nn \l__tasks_tmp_label_tl {#1}
+ \tl_if_eq:nnF { #1 } { $tasks$default$label$ }
+ { \tl_put_left:NV \l__tasks_tmp_label_tl \l__tasks_label_format_tl }
+ \tl_set:Nx \l__tasks_item_tl { \tl_trim_spaces:n {#2} }
+ }
+
+\__tasks_restore_dollar:
+
+% --------------------------------------------------------------------------
+% choice box:
+\bool_new:N \l__tasks_choice_checked_bool
+\dim_new:N \l__tasks_choice_width_dim
+\dim_set:Nn \l__tasks_choice_width_dim { 1.25ex }
+\dim_new:N \l__tasks_choice_linewidth_dim
+\dim_set:Nn \l__tasks_choice_linewidth_dim { .3pt }
+\dim_new:N \l__tasks_choice_checkwidth_dim
+\dim_set:Nn \l__tasks_choice_checkwidth_dim { .5pt }
+\dim_new:N \l__tasks_choice_raise_dim
+\dim_set:Nn \l__tasks_choice_raise_dim { .1ex }
+
+\cs_new_protected:Npn \tasks_choice:
+ {
+ \leavevmode
+ \group_begin:
+ \bool_set_false:N \l__tasks_choice_checked_bool
+ \box_move_up:nn
+ { \l__tasks_choice_raise_dim }
+ { \hbox:n { \__tasks_choice: } }
+ \group_end:
+ }
+
+\cs_new_protected:Npn \tasks_choice_checked:
+ {
+ \leavevmode
+ \group_begin:
+ \bool_set_true:N \l__tasks_choice_checked_bool
+ \box_move_up:nn
+ { \l__tasks_choice_raise_dim }
+ { \hbox:n { \__tasks_choice: } }
+ \group_end:
+ }
+
+\cs_new_protected:Npn \__tasks_choice:
+ {%
+ \dim_set:Nn \unitlength { .1\l__tasks_choice_width_dim }
+ \begin{picture}(10,0)
+ \linethickness \l__tasks_choice_linewidth_dim
+ \drawline(0,0)(0,10)(10,10)(10,0)(0,0)
+ \linethickness \l__tasks_choice_checkwidth_dim
+ \bool_if:NT \l__tasks_choice_checked_bool
+ {
+ \drawline(2,2)(8,8)
+ \drawline(2,8)(8,2)
+ }
+ \end{picture}%
+ }
+
+\providecommand* \choicebox { \tasks_choice: }
+\providecommand* \checkedchoicebox { \tasks_choice_checked: }
+
+% --------------------------------------------------------------------------
+% base instance:
+% ALPHABETIZE: a) b) c)
+\DeclareInstance {tasks} {alphabetize} {default} { }
+
+\keys_define:nn {tasks/list}
+ {
+ debug .bool_set:N = \l__tasks_debug_bool ,
+ style .tl_set:N = \l__tasks_instance_tl ,
+ style .initial:n = alphabetize ,
+ counter-format .tl_set:N = \l__tasks_custom_label_pattern_tl ,
+ label .code:n =
+ \bool_set_true:N \l__tasks_custom_label_bool
+ \tl_set:Nn \l__tasks_custom_label_tl {#1} ,
+ label-format .tl_set:N = \l__tasks_custom_label_format_tl ,
+ label-width .code:n =
+ \dim_set:Nn \l__tasks_label_width_dim {#1}
+ \bool_set_true:N \l__tasks_label_width_bool ,
+ label-offset .code:n =
+ \dim_set:Nn \l__tasks_label_offset_dim {#1}
+ \bool_set_true:N \l__tasks_label_offset_bool ,
+ label-align .tl_set:N = \l__tasks_label_align_tl ,
+ item-format .tl_set:N = \l__tasks_custom_item_format_tl ,
+ item-indent .code:n =
+ \dim_set:Nn \l__tasks_item_indent_dim {#1}
+ \bool_set_true:N \l__tasks_item_indent_bool ,
+ column-sep .dim_set:N = \l__tasks_column_sep_dim ,
+ before-skip .skip_set:N = \l__tasks_before_list_skip ,
+ after-skip .skip_set:N = \l__tasks_after_list_skip ,
+ after-item-skip .code:n =
+ \bool_set_true:N \l__tasks_custom_after_item_skip_bool
+ \skip_set:Nn \l__tasks_custom_after_item_skip {#1} ,
+ resume .bool_set:N = \l__tasks_resume_bool
+ }
+
+% --------------------------------------------------------------------------
+% the generic environment:
+\NewEnviron {__tasks_env:} [3]
+ {
+ \if@inlabel
+ \noindent\par\nobreak\vskip-\parskip\vskip-\baselineskip\hrule\@height\z@
+ \fi
+ \dim_compare:nNnF { \l__tasks_before_list_skip } = { 0pt }
+ { \vspace {\l__tasks_before_list_skip} }
+ \list {}
+ {
+ \keys_set:nn {tasks/list} {#2}
+ \dim_set:Nn \leftmargin {0pt}
+ \dim_set:Nn \rightmargin {0pt}
+ }
+ \item \scan_stop:
+ \int_incr:N \l__tasks_depth_int
+ \__tasks:VnnV \l__tasks_instance_tl {#3} {#1} \BODY
+ \endlist
+ \dim_compare:nNnF { \l__tasks_after_list_skip } = { 0pt }
+ { \vspace {\l__tasks_after_list_skip} }
+ }
+
+% --------------------------------------------------------------------------
+% command to start a new row:
+\cs_new_protected:Npn \tasks_new_row:
+ {
+ \int_gset:Nn \g__tasks_total_items_int
+ {
+ \g__tasks_total_items_int +
+ \l__tasks_columns_int -
+ \g__tasks_current_col_num_int
+ }
+ \__tasks_gset_rows_num:NN
+ \g__tasks_total_items_int
+ \l__tasks_columns_int
+ \int_gset_eq:NN \g__tasks_current_col_num_int \l__tasks_columns_int
+ }
+
+\NewDocumentCommand \startnewitemline {}
+ { \tasks_new_row: }
+
+% --------------------------------------------------------------------------
+% the user environment:
+\NewDocumentCommand \NewTasks { O{}mO{\task}D(){1} }
+ {
+ \NewDocumentEnvironment {#2} { O{}D(){#4} }
+ { \__tasks_env: {#3} { #1,##1 } {##2} }
+ { \end__tasks_env: }
+ }
+
+\NewDocumentCommand \RenewTasks { O{}mO{\task}D(){1} }
+ {
+ \RenewDocumentEnvironment {#2} { O{}D(){#4} }
+ { \__tasks_env: {#3} { #1,##1 } {##2} }
+ { \end__tasks_env: }
+ }
+
+% --------------------------------------------------------------------------
+% default list:
+\NewTasks {tasks}
+
+\file_if_exist:nT {tasks.cfg} { \file_input:n {tasks.cfg} }
+
+% --------------------------------------------------------------------------
+% setup:
+\cs_new_protected:Npn \tasks_setup:n #1
+ { \keys_set:nn {tasks/list} {#1} }
+
+\NewDocumentCommand \settasks { m }
+ { \tasks_setup:n {#1} }
+
+% --------------------------------------------------------------------------
+\tex_endinput:D
+
+% HISTORY:
+2013/01/19 v0.7 - extracted from `exsheets' package; this also lead to a
+ slightly new syntax and a few new options for it
+2013/04/04 v0.8a - corrected \seq_length:N => \seq_count:N
+2013/04/07 v0.9 - protected internal commands where appropriate
+ - made enumerated item referenceable with \label{}
+ and \ref{}; this introduced new options:
+ * the former `label-format' is now `counter-format'
+ * new: `label-format'
+ - changed defaults for `label-width' and `label-offset'
+ - ensure that the `after-item-skip' is only
+ inserted in between rows
+ - new option `after-item-skip'
+ - improvements when label are set with optional argument:
+ * a provided but empty argument is now correctly recognized
+ * the counter is _not_ stepped anymore for enumerated
+ lists when the optional argument is provided
+ - new command \startnewitemline that forces the next item to
+ be put at the beginning of a row
+2013/04/22 v0.9a - new option `item-indent'
+ - synchronized version number with `exsheets' until now but
+ won't any more
+2013/12/03 v0.9b - add missing \noindent for the case when \listparindent is
+ non-zero, fixes http://tex.stackexchange.com/q/148082/5049
+2014/05/11 v0.9c - remove definition of the \task macro: it is not necessary
+ for `tasks' to function but it conflicts e.g. with `ltxdoc'
+ class
+2014/07/20 v0.10 - new option `debug'
+ - new option `column-sep
+ - renamed a few internal variables
+ - remove package from the `exsheets' bundle and distribute
+ it as package of its own
+ - new: optional bang to a \task forces an item to use a full
+ line (\task!)
+ - new: optional star to a \task forces an item to use the
+ complete remaining line (\task*); the star has itself has
+ an optional argument for specifying the number of columns
+ to span (\task*(<num>))
+2014/07/29 v0.10a - bug-fix: correct typo in option definition of `column-sep'
+ - insert before/after skip with \vspace*
+ - remove unnecessary (and unused) arguments of
+ \__tasks_task:nn
+ - add \strut to the end of an item
+2016/05/03 v0.11 - new option: `item-format'
+ - some changes to how the list is displayed, especially
+ regarding spacing -- it now better resembles the standard
+ lists
+2016/05/04 v0.11a - enable `style' option globally again
+2016/08/13 v0.12 - the item indent and label width and label offset now play
+ together like one would expect: an item indent of 0pt will
+ align the complete item with the margin and the needed
+ overlap for the label is reserved
diff --git a/macros/latex/contrib/tasks/tasks_en.pdf b/macros/latex/contrib/tasks/tasks_en.pdf
new file mode 100644
index 0000000000..0e7f51af91
--- /dev/null
+++ b/macros/latex/contrib/tasks/tasks_en.pdf
Binary files differ
diff --git a/macros/latex/contrib/tasks/tasks_en.tex b/macros/latex/contrib/tasks/tasks_en.tex
new file mode 100644
index 0000000000..35b56f74a2
--- /dev/null
+++ b/macros/latex/contrib/tasks/tasks_en.tex
@@ -0,0 +1,581 @@
+% --------------------------------------------------------------------------
+% the TASKS package
+%
+% Horizontal columned lists.
+%
+% --------------------------------------------------------------------------
+% Clemens Niederberger
+% Web: https://github.com/cgnieder/tasks/
+% E-Mail: contact@mychemistry.eu
+% --------------------------------------------------------------------------
+% Copyright 2013-2014 Clemens Niederberger
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Clemens Niederberger.
+% --------------------------------------------------------------------------
+% If you have any ideas, questions, suggestions or bugs to report, please
+% feel free to contact me.
+% --------------------------------------------------------------------------
+\documentclass[load-preamble+]{cnltx-doc}
+\usepackage{tasks}
+
+\setcnltx{
+ package = {tasks} ,
+ authors = Clemens Niederberger ,
+ email = {contact@mychemistry.eu} ,
+ url = {https://github.com/cgnieder/tasks/} ,
+ info = {create horizontal columned lists} ,
+ add-cmds = {
+ checkedchoicebox ,
+ choicebox,
+ NewTasks,
+ settasks,
+ startnewitemline ,
+ task
+ } ,
+ add-silent-cmds = {
+ choice, correct,
+ DeclareInstance, DeclareTemplateInterface,
+ leftthumbsup,
+ sample, Sample
+ }
+}
+
+\BeforeBeginEnvironment{example}{\vspace{\baselineskip}}
+\AfterEndEnvironment{example}{\vspace{\baselineskip}}
+\BeforeBeginEnvironment{sourcecode}{\vspace{\baselineskip}}
+\AfterEndEnvironment{sourcecode}{\vspace{\baselineskip}}
+
+\newpackagename\ExSheets{ExSheets}
+\newpackagename\ExSheetslistings{ExSheets-listings}
+\newpackagename\cntformats{cntformats}
+\newpackagename\Tasks{tasks}
+
+% ----------------------------------------------------------------------------
+% other packages, bibliography, index
+\usepackage{xcoffins,tikz,wasysym,enumitem,booktabs,siunitx}
+\usepackage[accsupp]{acro}
+\DeclareAcronym{id}{
+ short = id ,
+ long = Identifier ,
+ format = \scshape ,
+ pdfstring = ID ,
+ accsupp = ID
+}
+
+\usepackage{filecontents}
+\usepackage{csquotes}
+
+
+
+% ----------------------------------------------------------------------------
+% example definitions that have to be done in the preamble:
+\usepackage{exsheets}
+\usepackage{dingbat}
+\NewTasks[style=multiplechoice]{multiplechoice}[\choice](3)
+\newcommand*\correct{\PrintSolutionsTF{\checkedchoicebox}{\choicebox}}
+
+
+\newcommand*\sample{This is some sample text we will use to create a somewhat
+ longer text spanning a few lines.}
+\newcommand*\Sample{\sample\ \sample\par\sample}
+
+\begin{document}
+
+\section{Motivation}
+Originally \Tasks\ has been an integral part of the
+\ExSheets\changedversion{0.7} package. However, users told me that it indeed
+could be useful to have it as a stand-alone package not having to load the
+whole \ExSheets\ beast just for having the \env{tasks} environment available.
+Since I agree with this the environment has been extracted into a package if
+its own, \Tasks. Since then \Tasks{} has been distributed as a package of its
+own but as part of the \ExSheets{} bundle\changedversion{0.10}. With v0.10 I
+decided to make it a completely independent package. So the relation to
+\ExSheets{} only is a historical one.
+
+The reason for the \env{tasks} environment is an unwritten agreement in German
+maths textbooks (exspecially in (junior) high school textbooks) to organize
+exercises in columns counting horizontally rather than vertically. That is
+what \code{tasks} primarily is for. If you don't need this feature you're
+better off using traditional \LaTeX{} lists and the \pkg{enumitem} package for
+customization.
+
+\section{License and Requirements}\label{sec:license}
+\license
+
+\Tasks\ requires the \bnd{l3kernel}~\cite{bnd:l3kernel} bundle,
+\needpackage{xparse}, \pkg{xtemplate} and \needpackage{l3keys2e} which are
+part of the \bnd{l3packages}~\cite{bnd:l3packages} bundle,
+\pkg{epic}~\cite{pkg:epic}, \pkg{cntformats}~\cite{pkg:cntformats}, and
+\pkg{environ}~\cite{pkg:environ}.
+
+
+\section{How it works}
+\subsection{The Basics}
+The \env{tasks} environment is similar to a list like \env{enumerate} but not
+the same. Here are some of the differences:
+\begin{itemize}
+ \item A first difference: there is no pagebreak possible inside an item but
+ only between items.
+ \item A second difference: the enumeration default is a), b), c) \ldots
+ \item A third difference: the body of the \env{tasks} environment is split
+ at \emph{every} occurrence of the item separator. For this reason the
+ default separator is not \cs*{item} but \cs{task} so it is unique to this
+ environment only. This directly leads to\ldots
+ \item \ldots{} a fourth difference: the \env{tasks} environment cannot be
+ nested. You can, however, use an \env*{itemize} environment or another
+ \enquote{real} list in it.
+ \item A fifth difference: verbatim material cannot be used in it. You'll
+ have to use \cs*{string}, \cs*{texttt} or \cs*{detokenize}. If this
+ won't suffice then don't use \env{tasks}.
+% \item A sixth difference: %footnotes
+\end{itemize}
+
+\begin{environments}
+ \environment{tasks}[\oarg{options}\darg{num of columns}]
+ List like environment where the single items are introduced with
+ \cs{task}.
+\end{environments}
+Let's see an example:
+\begin{example}
+ % \Sample is defined to contain some sample text:
+ % \def\sample{This is some sample text we will use to create a somewhat
+ % longer text spanning a few lines.}
+ % \def\Sample{\sample\ \sample\par\sample}
+ Some text before the list.
+ \begin{tasks}
+ \task \Sample
+ \task \Sample
+ \task \Sample
+ \end{tasks}
+ And also some text after it.
+\end{example}
+
+The environment takes the optional argument \darg{num of columns} with which
+the number of columns used by the environment is specified.
+\begin{example}
+ \begin{tasks}(2)
+ \task \Sample
+ \task \sample\ \sample
+ \task \sample
+ \task \Sample
+ \task \sample\par\sample
+ \end{tasks}
+\end{example}
+
+\subsection{Items Spanning More Than One Column}
+Sometimes it may come in handy if an item is allowed to span more than one
+column. \Tasks\sinceversion{0.10} supports items using the remaining space by
+adding an optional\label{optional-star} star to \cs{task}:
+\begin{example}
+ \begin{tasks}(3)
+ \task \sample
+ \task* \sample
+ \task* \sample
+ \task \sample
+ \task \sample
+ \end{tasks}
+\end{example}
+
+\Tasks\sinceversion{0.10} also supports items that span \emph{all} columns in
+any case by adding an optional bang\label{optional-bang} to \cs{task}.
+\begin{example}
+ \begin{tasks}(3)
+ \task \sample
+ \task! \sample
+ \task! \sample
+ \task \sample
+ \task \sample
+ \end{tasks}
+\end{example}
+
+The optional star has itself an optional argument with parentheses where you
+can specify the number of columns the item is supposed to span:\label{debug}
+\begin{example}
+ \settasks{debug}
+ \begin{tasks}(4)
+ \task the first
+ \task the second
+ \task the third
+ \task the fourth
+ \task*(3) the fifth item is way too long for this and needs three columns
+ \task the sixth
+ \task the seventh
+ \task*(2) the eighth item is way too long for this and needs two columns
+ \task the nineth
+ \task the tenth
+ \end{tasks}
+\end{example}
+If there are not enough columns left (say two columns but you said
+\cs{task}\sarg\Darg{3}) the argument is ignored and the maximum number of
+remaining columns is used (two in case of our example).
+
+Both optional star and optional bang can be combined with the optional
+argument for a custom label:
+\begin{example}
+ \begin{tasks}(3)
+ \task \sample
+ \task* \sample
+ \task*[(x)] \sample
+ \task \sample
+ \task \sample
+ \end{tasks}
+\end{example}
+
+Forcing a new item line manually is also possible\sinceversion{0.9} using the
+following command:
+\begin{commands}
+ \command{startnewitemline}
+ Introduce a new line in a \env{tasks} environment.
+\end{commands}
+\begin{example}
+ \begin{tasks}(4)
+ \task the first
+ \task the second
+ \task the third
+ \task the fourth
+ \task \rlap{the fifth item is way too long for this so we start a new row}
+ \startnewitemline
+ \task the sixth
+ \task the seventh
+ \task \rlap{the eighth item also is too long} \startnewitemline
+ \task the nineth
+ \task the tenth
+ \end{tasks}
+\end{example}
+
+While this works it also needs a bit of care since the width of the items
+doesn't change which means in order to use the full width you'd have to use
+trickery like \cs*{rlap} which then means the danger of the item text sticking
+into the margin\ldots
+
+\section{Available Options}\label{sec:tasks:options}
+
+The \Tasks{} package does not have any package options\changedversion{0.10}.
+
+The environment \env{tasks} has a number of options, though, namely the
+following ones that can be set using a setup command:
+\begin{commands}
+ \command{settasks}[\marg{options}]
+ Setup command for \Tasks.
+\end{commands}
+\begin{options}
+ \keyval{style}{instance}\Default
+ Choose the instance to be used. Read more on this in
+ section~\ref{sec:tasks}.
+ \keyval{counter-format}{counter specs}\Default{tsk[a])}
+ \sinceversion{0.9}Sets a custom label. The letters \code{tsk} are
+ replaced with the task-counter. An optional argument directly following
+ these letters specifies the counter format: \code{1}: \cs*{arabic},
+ \code{a}: \cs*{alph}, \code{A}: \cs*{Alph}, \code{r}: \cs*{roman} and
+ \code{R}: \cs*{Roman}.
+ \keyval{label-format}{code}\Default
+ \changedversion{0.9}Can be used to apply a formatting like, \eg,
+ \cs*{bfseries} to the labels.
+ \keyval{label}{code}\Default
+ \changedversion{0.9}Overwrite the automatic label to a custom one.
+ \keyval{label-width}{dim}\Default{1em}
+ Sets the width of the item labels.
+ \keyval{label-offset}{dim}\Default{.3333em}
+ \sinceversion{0.7}Sets the offset, \ie, the distance between label and
+ item.
+ \keyval{item-format}{code}\Default
+ \sinceversion{0.11}Can be used to apply a formatting like, \eg,
+ \cs*{bfseries} to the items. This may be a macro accepting the item as
+ mandatory argument.
+ \keyval{item-indent}{dim}\Default{2.5em}
+ \sinceversion{0.9a}The indent of an item, \ie, the horizontal space
+ available for both label and label-offset. If
+ \[
+ \text{\code{indent}} =
+ \text{\code{label-width}} + \text{\code{label-offset}}
+ \]
+ the label will align with the textblock above (if
+ \keyis{label-align}{left} is set). Please see figure~\ref{fig:lengths}
+ for a sketch of the available lengths and how they are set.
+ \keyval{column-sep}{dim}\Default{0pt}
+ \sinceversion{0.10}A horizontal length that is inserted between columns ot
+ items.
+ \keychoice{label-align}{left,right,center}\Default{left}
+ \sinceversion{0.7}Determines how the labels are aligned within the
+ label-box whose width is set with \option{label-width}.
+ \keyval{before-skip}{skip}\Default{0pt}
+ Sets the skip before the list.
+ \keyval{after-skip}{skip}\Default{0pt}
+ Sets the skip after the list.
+ \keyval{after-item-skip}{skip}\Default{1ex plus 1ex minus 1ex}
+ \sinceversion{0.9}This vertical skip is inserted between rows of items.
+ \keybool{resume}\Default{false}
+ The enumeration will resume from a previous \env{tasks} environment. In
+ order to use this option properly you shouldn't mix different \env{tasks}
+ environments that both count their items.
+ \keybool{debug}\Default{false}
+ \sinceversion{0.10}If set to true \cs*{fboxsep} is set to \code{0pt}
+ inside the \env{tasks} environment and \cs*{fbox} is used to draw a frame
+ around the label boxes and the item boxes.
+\end{options}
+
+\begin{figure}
+ \centering
+ \begin{tikzpicture}[every node/.style={font=\footnotesize},scale=.5]
+ \coordinate (itemedge1) at (2,2) ;
+ \coordinate (itemedge2) at (13,2) ;
+ \draw
+ (itemedge1) -- ++(8,0) -- ++(0,-2) -- ++(-8,0) -- cycle ;
+ \draw
+ (itemedge1) ++(-.5,0) coordinate(labeledge1)
+ -- ++(-1,0) --++ (0,-1) --++(1,0) --++(0,1) ;
+ \draw (itemedge1) ++(-2,0) -- ++(0,-2) ;
+ \draw
+ (itemedge2) -- ++(8,0) -- ++(0,-2) -- ++(-8,0) -- cycle ;
+ \draw
+ (itemedge2) ++(-.3,0) coordinate(labeledge2)
+ -- ++(-1,0) --++ (0,-1) --++(1,0) --++(0,1) ;
+ \draw (itemedge2) ++(-2,0) -- ++(0,-2) ;
+ \draw[<->] (itemedge2) ++(-2,0) --node[above]{column sep} ++(-1,0) ;
+ \draw[<->] (0,-.5) --node[below]{item indent} (2,-.5) ;
+ \draw[<->] (2,-.5) --node[below]{item width} (10,-.5) ;
+ \draw[<->] (labeledge1) ++(0,1) --node[above]{label width} ++(-1,0) ;
+ \draw[<->] (labeledge1) --node[above]{item offset} ++(.5,0) ;
+ \end{tikzpicture}
+ \caption{A visual representation of the used lengths.}
+ \label{fig:lengths}
+\end{figure}
+
+Now the same list as above but with three columns and a different label:
+\begin{example}
+ \begin{tasks}[counter-format=(tsk[r]),label-width=4ex](2)
+ \task \Sample
+ \task \sample\ \sample
+ \task \sample
+ \task \Sample
+ \task \sample\par\sample
+ \end{tasks}
+\end{example}
+% \begin{tasks}[counter-format=(tsk[r]),label-width=4ex](3)
+% \task \Sample
+% \task \sample\ \sample
+% \task \sample
+% \task \Sample
+% \task \sample\par\sample
+% \end{tasks}
+
+Let's use it inside a question, \ie, inside \ExSheets' \env{question}
+environment:
+\begin{example}
+ % since settings are local the following ones will be lost
+ % outside this example;
+ \settasks{
+ counter-format = qu.tsk ,
+ item-indent = 2em ,
+ label-width = 2em ,
+ label-offset = 0pt
+ }
+ \begin{question}[type=exam]{4}
+ I have these two tasks for you. Shall we begin?
+ \begin{tasks}(2)
+ \task The first task: easy!
+ \task The second task: even more so!
+ \end{tasks}
+ \end{question}
+ \begin{solution}[print]
+ Now, let's see\ldots\ ah, yes:
+ \begin{tasks}
+ \task This is the first solution. Told you it was easy.
+ \task This is the second solution. And of course you knew that!
+ \end{tasks}
+ \end{solution}
+\end{example}
+
+Finally let's see what the \option{debug} option does (you could see it
+already on page~\pageref{debug}):
+\begin{example}
+ \settasks{debug}
+ \begin{tasks}(2)
+ \task \Sample
+ \task \Sample
+ \end{tasks}
+\end{example}
+
+\section{Available Instances}\label{sec:tasks:instances}
+There are currently three additional instances for the \code{tasks} object
+available:
+\begin{description}
+ \item[itemize] uses \cs*{labelitemi} as labels.
+ \item[enumerate] enumerates the items with 1., 2., \ldots
+ \item[multiplechoice] a --~well~-- `multiple choice' list.
+\end{description}
+\begin{example}
+ \begin{tasks}[style=itemize](2)
+ \task that's just how\ldots
+ \task \ldots we expected
+ \end{tasks}
+ \begin{tasks}[style=enumerate](2)
+ \task that's just how\ldots
+ \task \ldots we expected
+ \end{tasks}
+ \begin{tasks}[style=multiplechoice](2)
+ \task that's just how\ldots
+ \task \ldots we expected
+ \end{tasks}
+\end{example}
+
+\section{Custom Labels}
+If you want to change a single label inside a list, you can use the optional
+argument of \cs{task}. This will temporarily overwrite the default label.
+\begin{example}[side-by-side]
+ \begin{tasks}[style=itemize]
+ \task a standard item
+ \task another one
+ \task[+] a different one
+ \task and another one
+ \end{tasks}
+\end{example}
+
+\section{New Tasks}
+It is possible to add custom environments that work like the \code{tasks}
+environment.
+\begin{commands}
+ \command{NewTasks}[\oarg{options}\marg{name}\oarg{separator}\darg{cols}]
+ Define environment \meta{name} that uses \meta{separator} to introduce a
+ new item. Default for \meta{separator} is \cs{task}, default for
+ \meta{cols} is \code{1}. The \meta{options} are the ones described in
+ section~\ref{sec:tasks:options}.
+ \command{RenewTasks}[\oarg{options}\marg{name}\oarg{separator}\darg{cols}]
+ Renew environment previously defined with \cs{NewTasks}.
+\end{commands}
+The \env{tasks} environment is defined as follows:
+\begin{sourcecode}
+ \NewTasks{tasks}
+\end{sourcecode}
+
+The separator does not have to be a control sequence:
+\begin{example}
+ % preamble:
+ % \usepackage{dingbat}
+ \NewTasks[label=\footnotesize\leftthumbsup,label-width=1.3em]{done}[*]
+ \begin{done}
+ * First task
+ * Second task
+ \end{done}
+\end{example}
+Although this might seem handy or even nice I strongly advice against using
+something different than a command sequence. Remember that the items will be
+split at \emph{every} occurrence of the separator. So in order to use the
+separator (here for example for a starred variant of a command) within an item
+it has to be hidden in braces. This is avoided of you use a command sequence
+which even doesn't have to be defined.
+
+Please also keep in mind that the separator still has an optional star
+argument (see~\pageref{optional-star}), an optional bang argument and the
+standard optional argument. Using \code{*} will prevent the optional star
+argument.
+
+\begin{example}
+ % preamble:
+ % \usepackage{dingbat}
+ \NewTasks[label=\footnotesize\leftthumbsup,label-width=1.3em]{done}[*]
+ \begin{done}(3)
+ * First task
+ * Second task
+ *! Third task spanning the full width available
+ * Fourth task
+ \end{done}
+\end{example}
+
+Let's say you want a \env*{multiplechoice} environment that has three columns
+in its default state. You could do something like this:
+\begin{example}
+ % preamble:
+ % \NewTasks[style=multiplechoice]{multiplechoice}[\choice](3)
+ % \newcommand*\correct{\PrintSolutionsTF{\checkedchoicebox}{\choicebox}}
+ %
+ % \PrintSolutionsTF and the {question} environment are provided
+ % by the ExSheets package
+ \begin{question}
+ \begin{multiplechoice}
+ \choice First choice
+ \choice Second choice
+ \choice[\correct] Third choice
+ \end{multiplechoice}
+ \end{question}
+ \begin{solution}[print]
+ \begin{multiplechoice}
+ \choice First choice
+ \choice Second choice
+ \choice[\correct] Third choice
+ \end{multiplechoice}
+ \end{solution}
+\end{example}
+
+The last example shows you two additional commands:
+\begin{commands}
+ \command{choicebox}[\quad\choicebox]
+ Print an empty square.
+ \command{checkedchoicebox}[\quad\checkedchoicebox]
+ Print a crossed-out square.
+\end{commands}
+
+
+\section{Styling \Tasks}
+Equivalent to the styling of \ExSheets\ \Tasks\ uses \pkg{xtemplate} to
+declare additional instances for the lists.
+
+\subsection{The \code{tasks} Object}\label{sec:tasks}
+The object that's defined by \Tasks\ is the `tasks' object. This time there
+are four instances available for the one template (again `default') that was
+defined.
+
+\subsubsection{Available Options}
+This section only lists the options that can be used when defining an instance
+of the `default' template. The following subsections will give some examples
+of their usage.
+
+\begin{sourcecode}
+ \DeclareTemplateInterface{tasks}{default}{3}
+ {
+ % option : type = default
+ enumerate : boolean = true ,
+ label : tokenlist ,
+ indent : length = 2.5em ,
+ counter-format : tokenlist = tsk[a]) ,
+ label-format : tokenlist ,
+ label-width : length = 1em ,
+ label-offset : length = .3333em ,
+ after-item-skip : skip = 1ex plus 1ex minus 1ex
+ }
+\end{sourcecode}
+
+\subsubsection{Predefined Instances}
+This is rather brief this time:
+\begin{sourcecode}
+ % ALPHABETIZE: a) b) c)
+ \DeclareInstance{tasks}{alphabetize}{default}{}
+ % available when `load-tasks=true':
+ % ITEMIZE:
+ \DeclareInstance{tasks}{itemize}{default}
+ {
+ enumerate = false ,
+ label-width = 1.125em
+ }
+ % ENUMERATE:
+ \DeclareInstance{tasks}{enumerate}{default}
+ { counter-format = tsk. }
+ % MULTIPLECHOICE:
+ \DeclareInstance{tasks}{multiplechoice}{default}
+ {
+ enumerate = false ,
+ label = \choicebox ,
+ }
+\end{sourcecode}
+
+\end{document}
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