xcoffins.pdf. - CTAN

\l__coffin_A_hpole_tl
\l__coffin_A_vpole_tl
\l__coffin_B_hpole_tl
\l__coffin_B_vpole_tl
\l__coffin_bound_box_grow_bool
\l__coffin_hoffset_dim
\l__coffin_voffset_dim
\__coffin_design_names:N
\Height
\Depth
\Width
\TotalHeight
\l__coffin_height_dim
\l__coffin_depth_dim
\l__coffin_width_dim
\l__coffin_totalheight_dim
2 〈@@=coffin〉
3 \ProvidesExplPackage
4 {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
Key–value definitions for the alignment system. With the exception of grow-bounding-box,
all of these have to be given with a value.
5 \keys_define:nn { coffin }
6 {
7 coffin1-hpole .tl_set:N = \l__coffin_A_hpole_tl ,
8 coffin1-hpole .value_required: ,
9 coffin1-vpole .tl_set:N = \l__coffin_A_vpole_tl ,
10 coffin1-vpole .value_required: ,
11 coffin2-hpole .tl_set:N = \l__coffin_B_hpole_tl ,
12 coffin2-hpole .value_required: ,
13 coffin2-vpole .tl_set:N = \l__coffin_B_vpole_tl ,
14 coffin2-vpole .value_required: ,
15 grow-bounding-box .bool_set:N = \l__coffin_bound_box_grow_bool ,
16 grow-bounding-box .default:n = true ,
17 hoffset .dim_set:N = \l__coffin_hoffset_dim ,
18 hoffset .value_required: ,
19 voffset .dim_set:N = \l__coffin_voffset_dim ,
20 voffset .value_required:
21 }
22 \keys_set:nn { coffin }
23 {
24 coffin1-hpole = H ,
25 coffin1-vpole = l ,
26 coffin2-hpole = H ,
27 coffin2-vpole = l ,
28 grow-bounding-box = true ,
29 hoffset = 0 pt ,
30 voffset = 0 pt
31 }
(End definition for \l__coffin_A_hpole_tl and others. These variables are documented on page ??.)
Sets up design-level names for the various coffin dimensions. These are not defined
outside of this scope, and are dimensions so that they work correctly inside for example
\fp_eval:n.
32 \cs_new_protected:Npn \__coffin_design_names:N #1
33 {
34 \dim_set:Nn \l__coffin_height_dim { \coffin_ht:N #1 }
35 \dim_set:Nn \l__coffin_depth_dim { \coffin_dp:N #1 }
36 \dim_set:Nn \l__coffin_width_dim { \coffin_wd:N #1 }
37 \dim_set:Nn \l__coffin_totalheight_dim
38 { \l__coffin_height_dim + \l__coffin_depth_dim }
39 \cs_set_eq:NN \Height \l__coffin_height_dim
40 \cs_set_eq:NN \Depth \l__coffin_depth_dim
41 \cs_set_eq:NN \Width \l__coffin_width_dim
42 \cs_set_eq:NN \TotalHeight \l__coffin_totalheight_dim
10