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%%
%% This is file `l3candidates.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% l3candidates.dtx (with options: `package')
%%
%% EXPERIMENTAL CODE
%%
%% Do not distribute this file without also distributing the
%% source files specified above.
%%
%% Do not distribute a modified version of this file.
%%
%% File: l3candidates.dtx Copyright(C) 2012 The LaTeX3 Project
%%
%% It may be distributed and/or modified under the conditions of the
%% LaTeX Project Public License (LPPL), either version 1.3c of this
%% license or (at your option) any later version. The latest version
%% of this license is in the file
%%
%% http://www.latex-project.org/lppl.txt
%%
%% This file is part of the "l3kernel bundle" (The Work in LPPL)
%% and all files in that bundle must be distributed together.
%%
%% The released version of this bundle is available from CTAN.
%%
%% -----------------------------------------------------------------------
%%
%% The development version of the bundle can be found at
%%
%% http://www.latex-project.org/svnroot/experimental/trunk/
%%
%% for those people who are interested.
%%
%%%%%%%%%%%
%% NOTE: %%
%%%%%%%%%%%
%%
%% Snapshots taken from the repository represent work in progress and may
%% not work or may contain conflicting material! We therefore ask
%% people _not_ to put them into distributions, archives, etc. without
%% prior consultation with the LaTeX Project Team.
%%
%% -----------------------------------------------------------------------
%%
\RequirePackage{l3bootstrap}
\GetIdInfo$Id: l3candidates.dtx 4468 2013-03-14 20:30:45Z joseph $
{L3 Experimental additions to l3kernel}
\ProvidesExplPackage
{\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
\__expl_package_check:
\fp_new:N \l__box_angle_fp
\fp_new:N \l__box_cos_fp
\fp_new:N \l__box_sin_fp
\dim_new:N \l__box_top_dim
\dim_new:N \l__box_bottom_dim
\dim_new:N \l__box_left_dim
\dim_new:N \l__box_right_dim
\dim_new:N \l__box_top_new_dim
\dim_new:N \l__box_bottom_new_dim
\dim_new:N \l__box_left_new_dim
\dim_new:N \l__box_right_new_dim
\box_new:N \l__box_internal_box
\cs_new_protected:Npn \box_rotate:Nn #1#2
{
\hbox_set:Nn #1
{
\group_begin:
\fp_set:Nn \l__box_angle_fp {#2}
\fp_set:Nn \l__box_sin_fp { sin ( \l__box_angle_fp * deg ) }
\fp_set:Nn \l__box_cos_fp { cos ( \l__box_angle_fp * deg ) }
\__box_rotate:N #1
\group_end:
}
}
\cs_new_protected:Npn \__box_rotate:N #1
{
\dim_set:Nn \l__box_top_dim { \box_ht:N #1 }
\dim_set:Nn \l__box_bottom_dim { -\box_dp:N #1 }
\dim_set:Nn \l__box_right_dim { \box_wd:N #1 }
\dim_zero:N \l__box_left_dim
\fp_compare:nNnTF \l__box_sin_fp > \c_zero_fp
{
\fp_compare:nNnTF \l__box_cos_fp > \c_zero_fp
{ \__box_rotate_quadrant_one: }
{ \__box_rotate_quadrant_two: }
}
{
\fp_compare:nNnTF \l__box_cos_fp < \c_zero_fp
{ \__box_rotate_quadrant_three: }
{ \__box_rotate_quadrant_four: }
}
\hbox_set:Nn \l__box_internal_box { \box_use:N #1 }
\hbox_set:Nn \l__box_internal_box
{
\tex_kern:D -\l__box_left_new_dim
\hbox:n
{
\__driver_box_rotate_begin:
\box_use:N \l__box_internal_box
\__driver_box_rotate_end:
}
}
\box_set_ht:Nn \l__box_internal_box { \l__box_top_new_dim }
\box_set_dp:Nn \l__box_internal_box { -\l__box_bottom_new_dim }
\box_set_wd:Nn \l__box_internal_box
{ \l__box_right_new_dim - \l__box_left_new_dim }
\box_use:N \l__box_internal_box
}
\cs_new_protected:Npn \__box_rotate_x:nnN #1#2#3
{
\dim_set:Nn #3
{
\fp_to_dim:n
{
\l__box_cos_fp * \dim_to_fp:n {#1}
- ( \l__box_sin_fp * \dim_to_fp:n {#2} )
}
}
}
\cs_new_protected:Npn \__box_rotate_y:nnN #1#2#3
{
\dim_set:Nn #3
{
\fp_to_dim:n
{
\l__box_sin_fp * \dim_to_fp:n {#1}
+ \l__box_cos_fp * \dim_to_fp:n {#2}
}
}
}
\cs_new_protected:Npn \__box_rotate_quadrant_one:
{
\__box_rotate_y:nnN \l__box_right_dim \l__box_top_dim
\l__box_top_new_dim
\__box_rotate_y:nnN \l__box_left_dim \l__box_bottom_dim
\l__box_bottom_new_dim
\__box_rotate_x:nnN \l__box_left_dim \l__box_top_dim
\l__box_left_new_dim
\__box_rotate_x:nnN \l__box_right_dim \l__box_bottom_dim
\l__box_right_new_dim
}
\cs_new_protected:Npn \__box_rotate_quadrant_two:
{
\__box_rotate_y:nnN \l__box_right_dim \l__box_bottom_dim
\l__box_top_new_dim
\__box_rotate_y:nnN \l__box_left_dim \l__box_top_dim
\l__box_bottom_new_dim
\__box_rotate_x:nnN \l__box_right_dim \l__box_top_dim
\l__box_left_new_dim
\__box_rotate_x:nnN \l__box_left_dim \l__box_bottom_dim
\l__box_right_new_dim
}
\cs_new_protected:Npn \__box_rotate_quadrant_three:
{
\__box_rotate_y:nnN \l__box_left_dim \l__box_bottom_dim
\l__box_top_new_dim
\__box_rotate_y:nnN \l__box_right_dim \l__box_top_dim
\l__box_bottom_new_dim
\__box_rotate_x:nnN \l__box_right_dim \l__box_bottom_dim
\l__box_left_new_dim
\__box_rotate_x:nnN \l__box_left_dim \l__box_top_dim
\l__box_right_new_dim
}
\cs_new_protected:Npn \__box_rotate_quadrant_four:
{
\__box_rotate_y:nnN \l__box_left_dim \l__box_top_dim
\l__box_top_new_dim
\__box_rotate_y:nnN \l__box_right_dim \l__box_bottom_dim
\l__box_bottom_new_dim
\__box_rotate_x:nnN \l__box_left_dim \l__box_bottom_dim
\l__box_left_new_dim
\__box_rotate_x:nnN \l__box_right_dim \l__box_top_dim
\l__box_right_new_dim
}
\fp_new:N \l__box_scale_x_fp
\fp_new:N \l__box_scale_y_fp
\cs_new_protected:Npn \box_resize:Nnn #1#2#3
{
\hbox_set:Nn #1
{
\group_begin:
\dim_set:Nn \l__box_top_dim { \box_ht:N #1 }
\dim_set:Nn \l__box_bottom_dim { -\box_dp:N #1 }
\dim_set:Nn \l__box_right_dim { \box_wd:N #1 }
\dim_zero:N \l__box_left_dim
\fp_set:Nn \l__box_scale_x_fp
{ \dim_to_fp:n {#2} / ( \dim_to_fp:n \l__box_right_dim ) }
\fp_set:Nn \l__box_scale_y_fp
{
\dim_to_fp:n {#3} /
( \dim_to_fp:n { \l__box_top_dim - \l__box_bottom_dim } )
}
\__box_resize:Nnn #1 {#2} {#3}
\group_end:
}
}
\cs_generate_variant:Nn \box_resize:Nnn { c }
\cs_new_protected:Npn \__box_resize:Nnn #1#2#3
{
\dim_set:Nn \l__box_right_new_dim { \dim_abs:n {#2} }
\dim_set:Nn \l__box_bottom_new_dim
{ \fp_abs:n { \l__box_scale_y_fp } \l__box_bottom_dim }
\dim_set:Nn \l__box_top_new_dim
{ \fp_abs:n { \l__box_scale_y_fp } \l__box_top_dim }
\__box_resize_common:N #1
}
\cs_new_protected:Npn \box_resize_to_ht_plus_dp:Nn #1#2
{
\hbox_set:Nn #1
{
\group_begin:
\dim_set:Nn \l__box_top_dim { \box_ht:N #1 }
\dim_set:Nn \l__box_bottom_dim { -\box_dp:N #1 }
\dim_set:Nn \l__box_right_dim { \box_wd:N #1 }
\dim_zero:N \l__box_left_dim
\fp_set:Nn \l__box_scale_y_fp
{
\dim_to_fp:n {#2} /
( \dim_to_fp:n { \l__box_top_dim - \l__box_bottom_dim } )
}
\fp_set_eq:NN \l__box_scale_x_fp \l__box_scale_y_fp
\__box_resize:Nnn #1 {#2} {#2}
\group_end:
}
}
\cs_generate_variant:Nn \box_resize_to_ht_plus_dp:Nn { c }
\cs_new_protected:Npn \box_resize_to_wd:Nn #1#2
{
\hbox_set:Nn #1
{
\group_begin:
\dim_set:Nn \l__box_top_dim { \box_ht:N #1 }
\dim_set:Nn \l__box_bottom_dim { -\box_dp:N #1 }
\dim_set:Nn \l__box_right_dim { \box_wd:N #1 }
\dim_zero:N \l__box_left_dim
\fp_set:Nn \l__box_scale_x_fp
{ \dim_to_fp:n {#2} / ( \dim_to_fp:n \l__box_right_dim ) }
\fp_set_eq:NN \l__box_scale_y_fp \l__box_scale_x_fp
\__box_resize:Nnn #1 {#2} {#2}
\group_end:
}
}
\cs_generate_variant:Nn \box_resize_to_wd:Nn { c }
\cs_new_protected:Npn \box_scale:Nnn #1#2#3
{
\hbox_set:Nn #1
{
\group_begin:
\fp_set:Nn \l__box_scale_x_fp {#2}
\fp_set:Nn \l__box_scale_y_fp {#3}
\dim_set:Nn \l__box_top_dim { \box_ht:N #1 }
\dim_set:Nn \l__box_bottom_dim { -\box_dp:N #1 }
\dim_set:Nn \l__box_right_dim { \box_wd:N #1 }
\dim_zero:N \l__box_left_dim
\dim_set:Nn \l__box_top_new_dim
{ \fp_abs:n { \l__box_scale_y_fp } \l__box_top_dim }
\dim_set:Nn \l__box_bottom_new_dim
{ \fp_abs:n { \l__box_scale_y_fp } \l__box_bottom_dim }
\dim_set:Nn \l__box_right_new_dim
{ \fp_abs:n { \l__box_scale_x_fp } \l__box_right_dim }
\__box_resize_common:N #1
\group_end:
}
}
\cs_generate_variant:Nn \box_scale:Nnn { c }
\cs_new_protected:Npn \__box_resize_common:N #1
{
\hbox_set:Nn \l__box_internal_box
{
\__driver_box_scale_begin:
\hbox_overlap_right:n { \box_use:N #1 }
\__driver_box_scale_end:
}
\box_set_ht:Nn \l__box_internal_box { \l__box_top_new_dim }
\box_set_dp:Nn \l__box_internal_box { \l__box_bottom_new_dim }
\fp_compare:nNnTF \l__box_scale_x_fp < \c_zero_fp
{
\hbox_to_wd:nn { \l__box_right_new_dim }
{
\tex_kern:D \l__box_right_new_dim
\box_use:N \l__box_internal_box
\tex_hss:D
}
}
{
\box_set_wd:Nn \l__box_internal_box { \l__box_right_new_dim }
\hbox:n
{
\tex_kern:D \c_zero_dim
\box_use:N \l__box_internal_box
\tex_hss:D
}
}
}
\cs_new_protected:Npn \box_clip:N #1
{ \hbox_set:Nn #1 { \__driver_box_use_clip:N #1 } }
\cs_generate_variant:Nn \box_clip:N { c }
\cs_new_protected:Npn \box_trim:Nnnnn #1#2#3#4#5
{
\hbox_set:Nn \l__box_internal_box
{
\tex_kern:D -\__dim_eval:w #2 \__dim_eval_end:
\box_use:N #1
\tex_kern:D -\__dim_eval:w #4 \__dim_eval_end:
}
\dim_compare:nNnTF { \box_dp:N #1 } > {#3}
{
\hbox_set:Nn \l__box_internal_box
{
\box_move_down:nn \c_zero_dim
{ \box_use:N \l__box_internal_box }
}
\box_set_dp:Nn \l__box_internal_box { \box_dp:N #1 - (#3) }
}
{
\hbox_set:Nn \l__box_internal_box
{
\box_move_down:nn { #3 - \box_dp:N #1 }
{ \box_use:N \l__box_internal_box }
}
\box_set_dp:Nn \l__box_internal_box \c_zero_dim
}
\dim_compare:nNnTF { \box_ht:N \l__box_internal_box } > {#5}
{
\hbox_set:Nn \l__box_internal_box
{ \box_move_up:nn \c_zero_dim { \box_use:N \l__box_internal_box } }
\box_set_ht:Nn \l__box_internal_box
{ \box_ht:N \l__box_internal_box - (#5) }
}
{
\hbox_set:Nn \l__box_internal_box
{
\box_move_up:nn { #5 - \box_ht:N \l__box_internal_box }
{ \box_use:N \l__box_internal_box }
}
\box_set_ht:Nn \l__box_internal_box \c_zero_dim
}
\box_set_eq:NN #1 \l__box_internal_box
}
\cs_generate_variant:Nn \box_trim:Nnnnn { c }
\cs_new_protected:Npn \box_viewport:Nnnnn #1#2#3#4#5
{
\hbox_set:Nn \l__box_internal_box
{
\tex_kern:D -\__dim_eval:w #2 \__dim_eval_end:
\box_use:N #1
\tex_kern:D \__dim_eval:w #4 - \box_wd:N #1 \__dim_eval_end:
}
\dim_compare:nNnTF {#3} < \c_zero_dim
{
\hbox_set:Nn \l__box_internal_box
{
\box_move_down:nn \c_zero_dim
{ \box_use:N \l__box_internal_box }
}
\box_set_dp:Nn \l__box_internal_box { -\dim_eval:n {#3} }
}
{
\hbox_set:Nn \l__box_internal_box
{ \box_move_down:nn {#3} { \box_use:N \l__box_internal_box } }
\box_set_dp:Nn \l__box_internal_box \c_zero_dim
}
\dim_compare:nNnTF {#5} > \c_zero_dim
{
\hbox_set:Nn \l__box_internal_box
{ \box_move_up:nn \c_zero_dim { \box_use:N \l__box_internal_box } }
\box_set_ht:Nn \l__box_internal_box
{
#5
\dim_compare:nNnT {#3} > \c_zero_dim
{ - (#3) }
}
}
{
\hbox_set:Nn \l__box_internal_box
{
\box_move_up:nn { -\dim_eval:n {#5} }
{ \box_use:N \l__box_internal_box }
}
\box_set_ht:Nn \l__box_internal_box \c_zero_dim
}
\box_set_eq:NN #1 \l__box_internal_box
}
\cs_generate_variant:Nn \box_viewport:Nnnnn { c }
\cs_new:Npn \clist_item:Nn #1#2
{
\exp_args:Nfo \__clist_item:nnNn
{ \clist_count:N #1 }
#1
\__clist_item_N_loop:nw
{#2}
}
\cs_new:Npn \__clist_item:nnNn #1#2#3#4
{
\int_compare:nNnTF {#4} < \c_zero
{
\int_compare:nNnTF {#4} < { - #1 }
{ \use_none_delimit_by_q_stop:w }
{ \exp_args:Nf #3 { \int_eval:n { #4 + \c_one + #1 } } }
}
{
\int_compare:nNnTF {#4} > {#1}
{ \use_none_delimit_by_q_stop:w }
{ #3 {#4} }
}
{ } , #2 , \q_stop
}
\cs_new:Npn \__clist_item_N_loop:nw #1 #2,
{
\int_compare:nNnTF {#1} = \c_zero
{ \use_i_delimit_by_q_stop:nw { \exp_not:n {#2} } }
{ \exp_args:Nf \__clist_item_N_loop:nw { \int_eval:n { #1 - 1 } } }
}
\cs_generate_variant:Nn \clist_item:Nn { c }
\cs_new:Npn \clist_item:nn #1#2
{
\exp_args:Nf \__clist_item:nnNn
{ \clist_count:n {#1} }
{#1}
\__clist_item_n:nw
{#2}
}
\cs_new:Npn \__clist_item_n:nw #1
{ \__clist_item_n_loop:nw {#1} \prg_do_nothing: }
\cs_new:Npn \__clist_item_n_loop:nw #1 #2,
{
\exp_args:No \tl_if_blank:nTF {#2}
{ \__clist_item_n_loop:nw {#1} \prg_do_nothing: }
{
\int_compare:nNnTF {#1} = \c_zero
{ \exp_args:No \__clist_item_n_end:n {#2} }
{
\exp_args:Nf \__clist_item_n_loop:nw
{ \int_eval:n { #1 - 1 } }
\prg_do_nothing:
}
}
}
\cs_new:Npn \__clist_item_n_end:n #1 #2 \q_stop
{
\__tl_trim_spaces:nn { \q_mark #1 }
{ \exp_last_unbraced:No \__clist_item_n_strip:w } ,
}
\cs_new:Npn \__clist_item_n_strip:w #1 , { \exp_not:n {#1} }
\cs_new_protected:Npn \clist_set_from_seq:NN
{ \__clist_set_from_seq:NNNN \clist_clear:N \tl_set:Nx }
\cs_new_protected:Npn \clist_gset_from_seq:NN
{ \__clist_set_from_seq:NNNN \clist_gclear:N \tl_gset:Nx }
\cs_new_protected:Npn \__clist_set_from_seq:NNNN #1#2#3#4
{
\seq_if_empty:NTF #4
{ #1 #3 }
{
#2 #3
{
\exp_last_unbraced:Nf \use_none:n
{ \seq_map_function:NN #4 \__clist_wrap_item:n }
}
}
}
\cs_new:Npn \__clist_wrap_item:n #1
{
,
\tl_if_empty:oTF { \__clist_set_from_seq:w #1 ~ , #1 ~ }
{ \exp_not:n {#1} }
{ \exp_not:n { {#1} } }
}
\cs_new:Npn \__clist_set_from_seq:w #1 , #2 ~ { }
\cs_generate_variant:Nn \clist_set_from_seq:NN { Nc }
\cs_generate_variant:Nn \clist_set_from_seq:NN { c , cc }
\cs_generate_variant:Nn \clist_gset_from_seq:NN { Nc }
\cs_generate_variant:Nn \clist_gset_from_seq:NN { c , cc }
\cs_new_protected:Npn \clist_const:Nn #1#2
{ \tl_const:Nx #1 { \__clist_trim_spaces:n {#2} } }
\cs_generate_variant:Nn \clist_const:Nn { c , Nx , cx }
\prg_new_conditional:Npnn \clist_if_empty:n #1 { p , T , F , TF }
{
\__clist_if_empty_n:w ? #1
, \q_mark \prg_return_false:
, \q_mark \prg_return_true:
\q_stop
}
\cs_new:Npn \__clist_if_empty_n:w #1 ,
{
\tl_if_empty:oTF { \use_none:nn #1 ? }
{ \__clist_if_empty_n:w ? }
{ \__clist_if_empty_n:wNw }
}
\cs_new:Npn \__clist_if_empty_n:wNw #1 \q_mark #2#3 \q_stop {#2}
\cs_new:Npn \clist_use:Nnnn #1#2#3#4
{
\clist_if_exist:NTF #1
{
\int_case:nnn { \clist_count:N #1 }
{
{ 0 } { }
{ 1 } { \exp_after:wN \__clist_use:wwn #1 , , { } }
{ 2 } { \exp_after:wN \__clist_use:wwn #1 , {#2} }
}
{
\exp_after:wN \__clist_use:nwwwwnwn
\exp_after:wN { \exp_after:wN } #1 ,
\q_mark , { \__clist_use:nwwwwnwn {#3} }
\q_mark , { \__clist_use:nwwn {#4} }
\q_stop { }
}
}
{ \__msg_kernel_expandable_error:nnn { kernel } { bad-variable } {#1} }
}
\cs_new:Npn \__clist_use:wwn #1 , #2 , #3 { \exp_not:n { #1 #3 #2 } }
\cs_new:Npn \__clist_use:nwwwwnwn
#1#2 , #3 , #4 , #5 \q_mark , #6#7 \q_stop #8
{ #6 {#3} , {#4} , #5 \q_mark , {#6} #7 \q_stop { #8 #1 #2 } }
\cs_new:Npn \__clist_use:nwwn #1#2 , #3 \q_stop #4
{ \exp_not:n { #4 #1 #2 } }
\fp_new:N \l__coffin_sin_fp
\fp_new:N \l__coffin_cos_fp
\prop_new:N \l__coffin_bounding_prop
\dim_new:N \l__coffin_bounding_shift_dim
\dim_new:N \l__coffin_left_corner_dim
\dim_new:N \l__coffin_right_corner_dim
\dim_new:N \l__coffin_bottom_corner_dim
\dim_new:N \l__coffin_top_corner_dim
\cs_new_protected:Npn \coffin_rotate:Nn #1#2
{
\fp_set:Nn \l__coffin_sin_fp { sin ( ( #2 ) * deg ) }
\fp_set:Nn \l__coffin_cos_fp { cos ( ( #2 ) * deg ) }
\prop_map_inline:cn { l__coffin_corners_ \__int_value:w #1 _prop }
{ \__coffin_rotate_corner:Nnnn #1 {##1} ##2 }
\prop_map_inline:cn { l__coffin_poles_ \__int_value:w #1 _prop }
{ \__coffin_rotate_pole:Nnnnnn #1 {##1} ##2 }
\__coffin_set_bounding:N #1
\prop_map_inline:Nn \l__coffin_bounding_prop
{ \__coffin_rotate_bounding:nnn {##1} ##2 }
\__coffin_find_corner_maxima:N #1
\__coffin_find_bounding_shift:
\box_rotate:Nn #1 {#2}
\hbox_set:Nn \l__coffin_internal_box
{
\tex_kern:D
\__dim_eval:w
\l__coffin_bounding_shift_dim - \l__coffin_left_corner_dim
\__dim_eval_end:
\box_move_down:nn { \l__coffin_bottom_corner_dim }
{ \box_use:N #1 }
}
\box_set_ht:Nn \l__coffin_internal_box
{ \l__coffin_top_corner_dim - \l__coffin_bottom_corner_dim }
\box_set_dp:Nn \l__coffin_internal_box { 0 pt }
\box_set_wd:Nn \l__coffin_internal_box
{ \l__coffin_right_corner_dim - \l__coffin_left_corner_dim }
\hbox_set:Nn #1 { \box_use:N \l__coffin_internal_box }
\prop_map_inline:cn { l__coffin_corners_ \__int_value:w #1 _prop }
{ \__coffin_shift_corner:Nnnn #1 {##1} ##2 }
\prop_map_inline:cn { l__coffin_poles_ \__int_value:w #1 _prop }
{ \__coffin_shift_pole:Nnnnnn #1 {##1} ##2 }
}
\cs_generate_variant:Nn \coffin_rotate:Nn { c }
\cs_new_protected:Npn \__coffin_set_bounding:N #1
{
\prop_put:Nnx \l__coffin_bounding_prop { tl }
{ { 0 pt } { \dim_use:N \box_ht:N #1 } }
\prop_put:Nnx \l__coffin_bounding_prop { tr }
{ { \dim_use:N \box_wd:N #1 } { \dim_use:N \box_ht:N #1 } }
\dim_set:Nn \l__coffin_internal_dim { - \box_dp:N #1 }
\prop_put:Nnx \l__coffin_bounding_prop { bl }
{ { 0 pt } { \dim_use:N \l__coffin_internal_dim } }
\prop_put:Nnx \l__coffin_bounding_prop { br }
{ { \dim_use:N \box_wd:N #1 } { \dim_use:N \l__coffin_internal_dim } }
}
\cs_new_protected:Npn \__coffin_rotate_bounding:nnn #1#2#3
{
\__coffin_rotate_vector:nnNN {#2} {#3} \l__coffin_x_dim \l__coffin_y_dim
\prop_put:Nnx \l__coffin_bounding_prop {#1}
{ { \dim_use:N \l__coffin_x_dim } { \dim_use:N \l__coffin_y_dim } }
}
\cs_new_protected:Npn \__coffin_rotate_corner:Nnnn #1#2#3#4
{
\__coffin_rotate_vector:nnNN {#3} {#4} \l__coffin_x_dim \l__coffin_y_dim
\prop_put:cnx { l__coffin_corners_ \__int_value:w #1 _prop } {#2}
{ { \dim_use:N \l__coffin_x_dim } { \dim_use:N \l__coffin_y_dim } }
}
\cs_new_protected:Npn \__coffin_rotate_pole:Nnnnnn #1#2#3#4#5#6
{
\__coffin_rotate_vector:nnNN {#3} {#4} \l__coffin_x_dim \l__coffin_y_dim
\__coffin_rotate_vector:nnNN {#5} {#6}
\l__coffin_x_prime_dim \l__coffin_y_prime_dim
\__coffin_set_pole:Nnx #1 {#2}
{
{ \dim_use:N \l__coffin_x_dim } { \dim_use:N \l__coffin_y_dim }
{ \dim_use:N \l__coffin_x_prime_dim }
{ \dim_use:N \l__coffin_y_prime_dim }
}
}
\cs_new_protected:Npn \__coffin_rotate_vector:nnNN #1#2#3#4
{
\dim_set:Nn #3
{
\fp_to_dim:n
{
\dim_to_fp:n {#1} * \l__coffin_cos_fp
- ( \dim_to_fp:n {#2} * \l__coffin_sin_fp )
}
}
\dim_set:Nn #4
{
\fp_to_dim:n
{
\dim_to_fp:n {#1} * \l__coffin_sin_fp
+ ( \dim_to_fp:n {#2} * \l__coffin_cos_fp )
}
}
}
\cs_new_protected:Npn \__coffin_find_corner_maxima:N #1
{
\dim_set:Nn \l__coffin_top_corner_dim { -\c_max_dim }
\dim_set:Nn \l__coffin_right_corner_dim { -\c_max_dim }
\dim_set:Nn \l__coffin_bottom_corner_dim { \c_max_dim }
\dim_set:Nn \l__coffin_left_corner_dim { \c_max_dim }
\prop_map_inline:cn { l__coffin_corners_ \__int_value:w #1 _prop }
{ \__coffin_find_corner_maxima_aux:nn ##2 }
}
\cs_new_protected:Npn \__coffin_find_corner_maxima_aux:nn #1#2
{
\dim_set:Nn \l__coffin_left_corner_dim
{ \dim_min:nn { \l__coffin_left_corner_dim } {#1} }
\dim_set:Nn \l__coffin_right_corner_dim
{ \dim_max:nn { \l__coffin_right_corner_dim } {#1} }
\dim_set:Nn \l__coffin_bottom_corner_dim
{ \dim_min:nn { \l__coffin_bottom_corner_dim } {#2} }
\dim_set:Nn \l__coffin_top_corner_dim
{ \dim_max:nn { \l__coffin_top_corner_dim } {#2} }
}
\cs_new_protected_nopar:Npn \__coffin_find_bounding_shift:
{
\dim_set:Nn \l__coffin_bounding_shift_dim { \c_max_dim }
\prop_map_inline:Nn \l__coffin_bounding_prop
{ \__coffin_find_bounding_shift_aux:nn ##2 }
}
\cs_new_protected:Npn \__coffin_find_bounding_shift_aux:nn #1#2
{
\dim_set:Nn \l__coffin_bounding_shift_dim
{ \dim_min:nn { \l__coffin_bounding_shift_dim } {#1} }
}
\cs_new_protected:Npn \__coffin_shift_corner:Nnnn #1#2#3#4
{
\prop_put:cnx { l__coffin_corners_ \__int_value:w #1 _ prop } {#2}
{
{ \dim_eval:n { #3 - \l__coffin_left_corner_dim } }
{ \dim_eval:n { #4 - \l__coffin_bottom_corner_dim } }
}
}
\cs_new_protected:Npn \__coffin_shift_pole:Nnnnnn #1#2#3#4#5#6
{
\prop_put:cnx { l__coffin_poles_ \__int_value:w #1 _ prop } {#2}
{
{ \dim_eval:n { #3 - \l__coffin_left_corner_dim } }
{ \dim_eval:n { #4 - \l__coffin_bottom_corner_dim } }
{#5} {#6}
}
}
\fp_new:N \l__coffin_scale_x_fp
\fp_new:N \l__coffin_scale_y_fp
\dim_new:N \l__coffin_scaled_total_height_dim
\dim_new:N \l__coffin_scaled_width_dim
\cs_new_protected:Npn \coffin_resize:Nnn #1#2#3
{
\fp_set:Nn \l__coffin_scale_x_fp
{ \dim_to_fp:n {#2} / \dim_to_fp:n { \coffin_wd:N #1 } }
\fp_set:Nn \l__coffin_scale_y_fp
{
\dim_to_fp:n {#3} / \dim_to_fp:n { \coffin_ht:N #1 + \coffin_dp:N #1 }
}
\box_resize:Nnn #1 {#2} {#3}
\__coffin_resize_common:Nnn #1 {#2} {#3}
}
\cs_generate_variant:Nn \coffin_resize:Nnn { c }
\cs_new_protected:Npn \__coffin_resize_common:Nnn #1#2#3
{
\prop_map_inline:cn { l__coffin_corners_ \__int_value:w #1 _prop }
{ \__coffin_scale_corner:Nnnn #1 {##1} ##2 }
\prop_map_inline:cn { l__coffin_poles_ \__int_value:w #1 _prop }
{ \__coffin_scale_pole:Nnnnnn #1 {##1} ##2 }
\fp_compare:nNnT \l__coffin_scale_x_fp < \c_zero_fp
{
\prop_map_inline:cn { l__coffin_corners_ \__int_value:w #1 _prop }
{ \__coffin_x_shift_corner:Nnnn #1 {##1} ##2 }
\prop_map_inline:cn { l__coffin_poles_ \__int_value:w #1 _prop }
{ \__coffin_x_shift_pole:Nnnnnn #1 {##1} ##2 }
}
}
\cs_new_protected:Npn \coffin_scale:Nnn #1#2#3
{
\fp_set:Nn \l__coffin_scale_x_fp {#2}
\fp_set:Nn \l__coffin_scale_y_fp {#3}
\box_scale:Nnn #1 { \l__coffin_scale_x_fp } { \l__coffin_scale_y_fp }
\dim_set:Nn \l__coffin_internal_dim
{ \coffin_ht:N #1 + \coffin_dp:N #1 }
\dim_set:Nn \l__coffin_scaled_total_height_dim
{ \fp_abs:n { \l__coffin_scale_y_fp } \l__coffin_internal_dim }
\dim_set:Nn \l__coffin_scaled_width_dim
{ -\fp_abs:n { \l__coffin_scale_x_fp } \coffin_wd:N #1 }
\__coffin_resize_common:Nnn #1
{ \l__coffin_scaled_width_dim } { \l__coffin_scaled_total_height_dim }
}
\cs_generate_variant:Nn \coffin_scale:Nnn { c }
\cs_new_protected:Npn \__coffin_scale_vector:nnNN #1#2#3#4
{
\dim_set:Nn #3
{ \fp_to_dim:n { \dim_to_fp:n {#1} * \l__coffin_scale_x_fp } }
\dim_set:Nn #4
{ \fp_to_dim:n { \dim_to_fp:n {#2} * \l__coffin_scale_y_fp } }
}
\cs_new_protected:Npn \__coffin_scale_corner:Nnnn #1#2#3#4
{
\__coffin_scale_vector:nnNN {#3} {#4} \l__coffin_x_dim \l__coffin_y_dim
\prop_put:cnx { l__coffin_corners_ \__int_value:w #1 _prop } {#2}
{ { \dim_use:N \l__coffin_x_dim } { \dim_use:N \l__coffin_y_dim } }
}
\cs_new_protected:Npn \__coffin_scale_pole:Nnnnnn #1#2#3#4#5#6
{
\__coffin_scale_vector:nnNN {#3} {#4} \l__coffin_x_dim \l__coffin_y_dim
\__coffin_set_pole:Nnx #1 {#2}
{
{ \dim_use:N \l__coffin_x_dim } { \dim_use:N \l__coffin_y_dim }
{#5} {#6}
}
}
\cs_new_protected:Npn \__coffin_x_shift_corner:Nnnn #1#2#3#4
{
\prop_put:cnx { l__coffin_corners_ \__int_value:w #1 _prop } {#2}
{
{ \dim_eval:n { #3 + \box_wd:N #1 } } {#4}
}
}
\cs_new_protected:Npn \__coffin_x_shift_pole:Nnnnnn #1#2#3#4#5#6
{
\prop_put:cnx { l__coffin_poles_ \__int_value:w #1 _prop } {#2}
{
{ \dim_eval:n #3 + \box_wd:N #1 } {#4}
{#5} {#6}
}
}
\cs_new_nopar:Npn \ior_map_break:
{ \__prg_map_break:Nn \ior_map_break: { } }
\cs_new_nopar:Npn \ior_map_break:n
{ \__prg_map_break:Nn \ior_map_break: }
\cs_new_protected_nopar:Npn \ior_map_inline:Nn
{ \__ior_map_inline:NNn \ior_get:NN }
\cs_new_protected_nopar:Npn \ior_str_map_inline:Nn
{ \__ior_map_inline:NNn \ior_get_str:NN }
\cs_new_protected_nopar:Npn \__ior_map_inline:NNn
{
\int_gincr:N \g__prg_map_int
\exp_args:Nc \__ior_map_inline:NNNn
{ __prg_map_ \int_use:N \g__prg_map_int :n }
}
\cs_new_protected:Npn \__ior_map_inline:NNNn #1#2#3#4
{
\cs_set:Npn #1 ##1 {#4}
\ior_if_eof:NF #3 { \__ior_map_inline_loop:NNN #1#2#3 }
\__prg_break_point:Nn \ior_map_break:
{ \int_gdecr:N \g__prg_map_int }
}
\cs_new_protected:Npn \__ior_map_inline_loop:NNN #1#2#3
{
#2 #3 \l__ior_internal_tl
\ior_if_eof:NF #3
{
\exp_args:No #1 \l__ior_internal_tl
\__ior_map_inline_loop:NNN #1#2#3
}
}
\tl_new:N \l__ior_internal_tl
\cs_new_protected:Npn \fp_set_from_dim:Nn #1#2
{ \tl_set:Nx #1 { \dim_to_fp:n {#2} } }
\cs_new_protected:Npn \fp_gset_from_dim:Nn #1#2
{ \tl_gset:Nx #1 { \dim_to_fp:n {#2} } }
\cs_generate_variant:Nn \fp_set_from_dim:Nn { c }
\cs_generate_variant:Nn \fp_gset_from_dim:Nn { c }
\cs_new:Npn \prop_map_tokens:Nn #1#2
{
\exp_last_unbraced:Nno \__prop_map_tokens:nwn {#2} #1
\s__prop \q_recursion_tail \s__prop { }
\__prg_break_point:Nn \prop_map_break: { }
}
\cs_new:Npn \__prop_map_tokens:nwn #1 \s__prop #2 \s__prop #3
{
\if_meaning:w \q_recursion_tail #2
\exp_after:wN \prop_map_break:
\fi:
\use:n {#1} {#2} {#3}
\__prop_map_tokens:nwn {#1}
}
\cs_generate_variant:Nn \prop_map_tokens:Nn { c }
\cs_new:Npn \prop_get:Nn #1#2
{ \__prop_get:No #1 { \tl_to_str:n {#2} } }
\cs_new:Npn \__prop_get:Nn #1#2
{
\exp_last_unbraced:Nno \__prop_get_Nn:nwn {#2} #1
\s__prop #2 \s__prop { }
\__prg_break_point:
}
\cs_generate_variant:Nn \__prop_get:Nn { No }
\cs_new:Npn \__prop_get_Nn:nwn #1 \s__prop #2 \s__prop #3
{
\str_if_eq_x:nnTF {#1} {#2}
{ \__prg_break:n { \exp_not:n {#3} } }
{ \__prop_get_Nn:nwn {#1} }
}
\cs_generate_variant:Nn \prop_get:Nn { c }
\cs_new:Npn \seq_item:Nn #1#2
{
\exp_last_unbraced:Nfo \__seq_item:nnn
{
\int_eval:n
{
\int_compare:nNnT {#2} < \c_zero
{ \seq_count:N #1 + \c_one + }
#2
}
}
#1
{ ? \__prg_break: }
{ }
\__prg_break_point:
}
\cs_new:Npn \__seq_item:nnn #1#2#3
{
\use_none:n #2
\int_compare:nNnTF {#1} = \c_one
{ \__prg_break:n { \exp_not:n {#3} } }
{ \exp_args:Nf \__seq_item:nnn { \int_eval:n { #1 - 1 } } }
}
\cs_generate_variant:Nn \seq_item:Nn { c }
\cs_new:Npn \seq_mapthread_function:NNN #1#2#3
{
\exp_after:wN \__seq_mapthread_function:NN
\exp_after:wN #3
\exp_after:wN #1
#2
{ ? \__prg_break: } { }
\__prg_break_point:
}
\cs_new:Npn \__seq_mapthread_function:NN #1#2
{
\exp_after:wN \__seq_mapthread_function:Nnnwnn
\exp_after:wN #1
#2
{ ? \__prg_break: } { }
\q_stop
}
\cs_new:Npn \__seq_mapthread_function:Nnnwnn #1#2#3#4 \q_stop #5#6
{
\use_none:n #2
\use_none:n #5
#1 {#3} {#6}
\__seq_mapthread_function:Nnnwnn #1 #4 \q_stop
}
\cs_generate_variant:Nn \seq_mapthread_function:NNN { Nc }
\cs_generate_variant:Nn \seq_mapthread_function:NNN { c , cc }
\cs_new_protected:Npn \seq_set_from_clist:NN #1#2
{
\tl_set:Nx #1
{ \clist_map_function:NN #2 \__seq_wrap_item:n }
}
\cs_new_protected:Npn \seq_set_from_clist:Nn #1#2
{
\tl_set:Nx #1
{ \clist_map_function:nN {#2} \__seq_wrap_item:n }
}
\cs_new_protected:Npn \seq_gset_from_clist:NN #1#2
{
\tl_gset:Nx #1
{ \clist_map_function:NN #2 \__seq_wrap_item:n }
}
\cs_new_protected:Npn \seq_gset_from_clist:Nn #1#2
{
\tl_gset:Nx #1
{ \clist_map_function:nN {#2} \__seq_wrap_item:n }
}
\cs_generate_variant:Nn \seq_set_from_clist:NN { Nc }
\cs_generate_variant:Nn \seq_set_from_clist:NN { c , cc }
\cs_generate_variant:Nn \seq_set_from_clist:Nn { c }
\cs_generate_variant:Nn \seq_gset_from_clist:NN { Nc }
\cs_generate_variant:Nn \seq_gset_from_clist:NN { c , cc }
\cs_generate_variant:Nn \seq_gset_from_clist:Nn { c }
\cs_new_protected_nopar:Npn \__seq_tmp:w { }
\cs_new_protected_nopar:Npn \seq_reverse:N
{ \__seq_reverse:NN \tl_set:Nx }
\cs_new_protected_nopar:Npn \seq_greverse:N
{ \__seq_reverse:NN \tl_gset:Nx }
\cs_new_protected:Npn \__seq_reverse:NN #1 #2
{
\cs_set_eq:NN \__seq_tmp:w \__seq_item:n
\cs_set_eq:NN \__seq_item:n \__seq_reverse_item:nwn
#1 #2 { #2 \exp_not:n { } }
\cs_set_eq:NN \__seq_item:n \__seq_tmp:w
}
\cs_new:Npn \__seq_reverse_item:nwn #1 #2 \exp_not:n #3
{
#2
\exp_not:n { \__seq_item:n {#1} #3 }
}
\cs_generate_variant:Nn \seq_reverse:N { c }
\cs_generate_variant:Nn \seq_greverse:N { c }
\cs_new_protected_nopar:Npn \seq_set_filter:NNn
{ \__seq_set_filter:NNNn \tl_set:Nx }
\cs_new_protected_nopar:Npn \seq_gset_filter:NNn
{ \__seq_set_filter:NNNn \tl_gset:Nx }
\cs_new_protected:Npn \__seq_set_filter:NNNn #1#2#3#4
{
\__seq_push_item_def:n { \bool_if:nT {#4} { \__seq_wrap_item:n {##1} } }
#1 #2 { #3 }
\__seq_pop_item_def:
}
\cs_new_protected_nopar:Npn \seq_set_map:NNn
{ \__seq_set_map:NNNn \tl_set:Nx }
\cs_new_protected_nopar:Npn \seq_gset_map:NNn
{ \__seq_set_map:NNNn \tl_gset:Nx }
\cs_new_protected:Npn \__seq_set_map:NNNn #1#2#3#4
{
\__seq_push_item_def:n { \exp_not:N \__seq_item:n {#4} }
#1 #2 { #3 }
\__seq_pop_item_def:
}
\cs_new:Npn \seq_use:Nnnn #1#2#3#4
{
\seq_if_exist:NTF #1
{
\int_case:nnn { \seq_count:N #1 }
{
{ 0 } { }
{ 1 } { \exp_after:wN \__seq_use:NnNnn #1 \__seq_item:n { } { } }
{ 2 } { \exp_after:wN \__seq_use:NnNnn #1 {#2} }
}
{
\exp_after:wN \__seq_use:nwwwwnwn
\exp_after:wN { \exp_after:wN } #1 \__seq_item:n
\q_mark { \__seq_use:nwwwwnwn {#3} }
\q_mark { \__seq_use:nwwn {#4} }
\q_stop { }
}
}
{ \__msg_kernel_expandable_error:nnn { kernel } { bad-variable } {#1} }
}
\cs_new:Npn \__seq_use:NnNnn \__seq_item:n #1 \__seq_item:n #2#3
{ \exp_not:n { #1 #3 #2 } }
\cs_new:Npn \__seq_use:nwwwwnwn
#1 \__seq_item:n #2 \__seq_item:n #3 \__seq_item:n #4#5
\q_mark #6#7 \q_stop #8
{
#6 \__seq_item:n {#3} \__seq_item:n {#4} #5
\q_mark {#6} #7 \q_stop { #8 #1 #2 }
}
\cs_new:Npn \__seq_use:nwwn #1 \__seq_item:n #2 #3 \q_stop #4
{ \exp_not:n { #4 #1 #2 } }
\cs_new:Npn \skip_split_finite_else_action:nnNN #1#2#3#4
{
\skip_if_finite:nTF {#1}
{
#3 = \etex_gluestretch:D #1 \scan_stop:
#4 = \etex_glueshrink:D #1 \scan_stop:
}
{
#3 = \c_zero_skip
#4 = \c_zero_skip
#2
}
}
\prg_new_conditional:Npnn \tl_if_single_token:n #1 { p , T , F , TF }
{
\tl_if_head_is_N_type:nTF {#1}
{ \__str_if_eq_x_return:nn { \exp_not:o { \use_none:n #1 } } { } }
{ \__str_if_eq_x_return:nn { \exp_not:n {#1} } { ~ } }
}
\cs_new:Npn \tl_reverse_tokens:n #1
{
\etex_unexpanded:D \exp_after:wN
{
\tex_romannumeral:D
\__tl_act:NNNnn
\__tl_reverse_normal:nN
\__tl_reverse_group:nn
\__tl_reverse_space:n
{ }
{#1}
}
}
\cs_new:Npn \__tl_reverse_group:nn #1
{
\__tl_act_group_recurse:Nnn
\__tl_act_reverse_output:n
{ \tl_reverse_tokens:n }
}
\cs_new:Npn \__tl_act_group_recurse:Nnn #1#2#3
{
\exp_args:Nf #1
{ \exp_after:wN \exp_after:wN \exp_after:wN { #2 {#3} } }
}
\cs_new:Npn \tl_count_tokens:n #1
{
\int_eval:n
{
\__tl_act:NNNnn
\__tl_act_count_normal:nN
\__tl_act_count_group:nn
\__tl_act_count_space:n
{ }
{#1}
}
}
\cs_new:Npn \__tl_act_count_normal:nN #1 #2 { 1 + }
\cs_new:Npn \__tl_act_count_space:n #1 { 1 + }
\cs_new:Npn \__tl_act_count_group:nn #1 #2
{ 2 + \tl_count_tokens:n {#2} + }
\tl_const:Nn \c__tl_act_uppercase_tl
{
aA bB cC dD eE fF gG hH iI jJ kK lL mM
nN oO pP qQ rR sS tT uU vV wW xX yY zZ
}
\tl_const:Nn \c__tl_act_lowercase_tl
{
Aa Bb Cc Dd Ee Ff Gg Hh Ii Jj Kk Ll Mm
Nn Oo Pp Qq Rr Ss Tt Uu Vv Ww Xx Yy Zz
}
\cs_new:Npn \tl_expandable_uppercase:n #1
{
\etex_unexpanded:D \exp_after:wN
{
\tex_romannumeral:D
\__tl_act_case_aux:nn { \c__tl_act_uppercase_tl } {#1}
}
}
\cs_new:Npn \tl_expandable_lowercase:n #1
{
\etex_unexpanded:D \exp_after:wN
{
\tex_romannumeral:D
\__tl_act_case_aux:nn { \c__tl_act_lowercase_tl } {#1}
}
}
\cs_new:Npn \__tl_act_case_aux:nn
{
\__tl_act:NNNnn
\__tl_act_case_normal:nN
\__tl_act_case_group:nn
\__tl_act_case_space:n
}
\cs_new:Npn \__tl_act_case_space:n #1 { \__tl_act_output:n {~} }
\cs_new:Npn \__tl_act_case_normal:nN #1 #2
{
\exp_args:Nf \__tl_act_output:n
{
\exp_args:NNo \str_case:nnn #2 {#1}
{ \exp_stop_f: #2 }
}
}
\cs_new:Npn \__tl_act_case_group:nn #1 #2
{
\exp_after:wN \__tl_act_output:n \exp_after:wN
{ \exp_after:wN { \tex_romannumeral:D \__tl_act_case_aux:nn {#1} {#2} } }
}
\cs_new:Npn \tl_item:nn #1#2
{
\exp_args:Nf \__tl_item:nn
{
\int_eval:n
{
\int_compare:nNnT {#2} < \c_zero
{ \tl_count:n {#1} + \c_one + }
#2
}
}
#1
\q_recursion_tail
\__prg_break_point:
}
\cs_new:Npn \__tl_item:nn #1#2
{
\__quark_if_recursion_tail_break:nN {#2} \__prg_break:
\int_compare:nNnTF {#1} = \c_one
{ \__prg_break:n { \exp_not:n {#2} } }
{ \exp_args:Nf \__tl_item:nn { \int_eval:n { #1 - 1 } } }
}
\cs_new_nopar:Npn \tl_item:Nn { \exp_args:No \tl_item:nn }
\cs_generate_variant:Nn \tl_item:Nn { c }
\group_begin:
\char_set_catcode_active:N \^^@
\cs_set:Npn \char_tmp:NN #1#2
{
\cs_new:Npn #1 ##1
{
\char_set_catcode_active:n { `##1 }
\group_begin:
\char_set_lccode:nn { `\^^@ } { `##1 }
\tl_to_lowercase:n { \group_end: #2 ^^@ }
}
}
\char_tmp:NN \char_set_active:Npn \cs_set:Npn
\char_tmp:NN \char_set_active:Npx \cs_set:Npx
\char_tmp:NN \char_gset_active:Npn \cs_gset:Npn
\char_tmp:NN \char_gset_active:Npx \cs_gset:Npx
\char_tmp:NN \char_set_active_eq:NN \cs_set_eq:NN
\char_tmp:NN \char_gset_active_eq:NN \cs_gset_eq:NN
\group_end:
\group_begin:
\char_set_catcode_other:N \O
\char_set_catcode_other:N \U
\char_set_catcode_other:N \T
\char_set_catcode_other:N \E
\char_set_catcode_other:N \R
\tl_to_lowercase:n
{
\cs_new_protected_nopar:Npn \__peek_execute_branches_N_type:
{
\if_int_odd:w
\if_catcode:w \exp_not:N \l_peek_token { \c_two \fi:
\if_catcode:w \exp_not:N \l_peek_token } \c_two \fi:
\if_meaning:w \l_peek_token \c_space_token \c_two \fi:
\c_one
\exp_after:wN \__peek_N_type:w
\token_to_meaning:N \l_peek_token
\q_mark \__peek_N_type_aux:nnw
OUTER \q_mark \use_none_delimit_by_q_stop:w
\q_stop
\exp_after:wN \__peek_true:w
\else:
\exp_after:wN \__peek_false:w
\fi:
}
\cs_new_protected:Npn \__peek_N_type:w #1 OUTER #2 \q_mark #3
{ #3 {#1} {#2} }
}
\group_end:
\cs_new_protected:Npn \__peek_N_type_aux:nnw #1 #2 #3 \fi:
{
\fi:
\tl_if_in:noTF {#1} { \tl_to_str:n {ma} }
{ \__peek_true:w }
{ \tl_if_empty:nTF {#2} { \__peek_true:w } { \__peek_false:w } }
}
\cs_new_protected_nopar:Npn \peek_N_type:TF
{ \__peek_token_generic:NNTF \__peek_execute_branches_N_type: \scan_stop: }
\cs_new_protected_nopar:Npn \peek_N_type:T
{ \__peek_token_generic:NNT \__peek_execute_branches_N_type: \scan_stop: }
\cs_new_protected_nopar:Npn \peek_N_type:F
{ \__peek_token_generic:NNF \__peek_execute_branches_N_type: \scan_stop: }
%%
%%
%% End of file `l3candidates.sty'.
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