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%% This is file `l3coffins.sty',
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%% l3coffins.dtx (with options: `package')
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%% EXPERIMENTAL CODE
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%% File: l3coffins.dtx Copyright(C) 2010-2012 The LaTeX3 Project
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%% It may be distributed and/or modified under the conditions of the
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\RequirePackage{l3bootstrap}
\GetIdInfo$Id: l3coffins.dtx 4212 2012-09-09 12:24:04Z bruno $
{L3 Coffin code layer}
\ProvidesExplPackage
{\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
\__expl_package_check:
\box_new:N \l__coffin_internal_box
\dim_new:N \l__coffin_internal_dim
\tl_new:N \l__coffin_internal_tl
\prop_new:N \c__coffin_corners_prop
\prop_put:Nnn \c__coffin_corners_prop { tl } { { 0 pt } { 0 pt } }
\prop_put:Nnn \c__coffin_corners_prop { tr } { { 0 pt } { 0 pt } }
\prop_put:Nnn \c__coffin_corners_prop { bl } { { 0 pt } { 0 pt } }
\prop_put:Nnn \c__coffin_corners_prop { br } { { 0 pt } { 0 pt } }
\prop_new:N \c__coffin_poles_prop
\tl_set:Nn \l__coffin_internal_tl { { 0 pt } { 0 pt } { 0 pt } { 1000 pt } }
\prop_put:Nno \c__coffin_poles_prop { l } { \l__coffin_internal_tl }
\prop_put:Nno \c__coffin_poles_prop { hc } { \l__coffin_internal_tl }
\prop_put:Nno \c__coffin_poles_prop { r } { \l__coffin_internal_tl }
\tl_set:Nn \l__coffin_internal_tl { { 0 pt } { 0 pt } { 1000 pt } { 0 pt } }
\prop_put:Nno \c__coffin_poles_prop { b } { \l__coffin_internal_tl }
\prop_put:Nno \c__coffin_poles_prop { vc } { \l__coffin_internal_tl }
\prop_put:Nno \c__coffin_poles_prop { t } { \l__coffin_internal_tl }
\prop_put:Nno \c__coffin_poles_prop { B } { \l__coffin_internal_tl }
\prop_put:Nno \c__coffin_poles_prop { H } { \l__coffin_internal_tl }
\prop_put:Nno \c__coffin_poles_prop { T } { \l__coffin_internal_tl }
\fp_new:N \l__coffin_slope_x_fp
\fp_new:N \l__coffin_slope_y_fp
\bool_new:N \l__coffin_error_bool
\dim_new:N \l__coffin_offset_x_dim
\dim_new:N \l__coffin_offset_y_dim
\tl_new:N \l__coffin_pole_a_tl
\tl_new:N \l__coffin_pole_b_tl
\dim_new:N \l__coffin_x_dim
\dim_new:N \l__coffin_y_dim
\dim_new:N \l__coffin_x_prime_dim
\dim_new:N \l__coffin_y_prime_dim
\prg_new_conditional:Npnn \coffin_if_exist:N #1 { p , T , F , TF }
{
\cs_if_exist:NTF #1
{
\cs_if_exist:cTF { l__coffin_poles_ \__int_value:w #1 _prop }
{ \prg_return_true: }
{ \prg_return_false: }
}
{ \prg_return_false: }
}
\cs_generate_variant:Nn \coffin_if_exist_p:N { c }
\cs_generate_variant:Nn \coffin_if_exist:NT { c }
\cs_generate_variant:Nn \coffin_if_exist:NF { c }
\cs_generate_variant:Nn \coffin_if_exist:NTF { c }
\cs_new_protected:Npn \__coffin_if_exist:NT #1#2
{
\coffin_if_exist:NTF #1
{ #2 }
{
\__msg_kernel_error:nnx { kernel } { unknown-coffin }
{ \token_to_str:N #1 }
}
}
\cs_new_protected:Npn \coffin_clear:N #1
{
\__coffin_if_exist:NT #1
{
\box_clear:N #1
\__coffin_reset_structure:N #1
}
}
\cs_generate_variant:Nn \coffin_clear:N { c }
\cs_new_protected:Npn \coffin_new:N #1
{
\box_new:N #1
\prop_clear_new:c { l__coffin_corners_ \__int_value:w #1 _prop }
\prop_clear_new:c { l__coffin_poles_ \__int_value:w #1 _prop }
\prop_gset_eq:cN { l__coffin_corners_ \__int_value:w #1 _prop }
\c__coffin_corners_prop
\prop_gset_eq:cN { l__coffin_poles_ \__int_value:w #1 _prop }
\c__coffin_poles_prop
}
\cs_generate_variant:Nn \coffin_new:N { c }
\cs_new_protected:Npn \hcoffin_set:Nn #1#2
{
\__coffin_if_exist:NT #1
{
\hbox_set:Nn #1
{
\color_group_begin:
\color_ensure_current:
#2
\color_group_end:
}
\__coffin_reset_structure:N #1
\__coffin_update_poles:N #1
\__coffin_update_corners:N #1
}
}
\cs_generate_variant:Nn \hcoffin_set:Nn { c }
\cs_new_protected:Npn \vcoffin_set:Nnn #1#2#3
{
\__coffin_if_exist:NT #1
{
\vbox_set:Nn #1
{
\dim_set:Nn \tex_hsize:D {#2}
\dim_set_eq:NN \linewidth \tex_hsize:D
\dim_set_eq:NN \columnwidth \tex_hsize:D
\color_group_begin:
#3
\color_group_end:
}
\__coffin_reset_structure:N #1
\__coffin_update_poles:N #1
\__coffin_update_corners:N #1
\vbox_set_top:Nn \l__coffin_internal_box { \vbox_unpack:N #1 }
\__coffin_set_pole:Nnx #1 { T }
{
{ 0 pt }
{ \dim_eval:n { \box_ht:N #1 - \box_ht:N \l__coffin_internal_box } }
{ 1000 pt }
{ 0 pt }
}
\box_clear:N \l__coffin_internal_box
}
}
\cs_generate_variant:Nn \vcoffin_set:Nnn { c }
\cs_new_protected:Npn \hcoffin_set:Nw #1
{
\__coffin_if_exist:NT #1
{
\hbox_set:Nw #1 \color_group_begin: \color_ensure_current:
\cs_set_protected_nopar:Npn \hcoffin_set_end:
{
\color_group_end:
\hbox_set_end:
\__coffin_reset_structure:N #1
\__coffin_update_poles:N #1
\__coffin_update_corners:N #1
}
}
}
\cs_new_protected_nopar:Npn \hcoffin_set_end: { }
\cs_generate_variant:Nn \hcoffin_set:Nw { c }
\cs_new_protected:Npn \vcoffin_set:Nnw #1#2
{
\__coffin_if_exist:NT #1
{
\vbox_set:Nw #1
\dim_set:Nn \tex_hsize:D {#2}
\dim_set_eq:NN \linewidth \tex_hsize:D
\dim_set_eq:NN \columnwidth \tex_hsize:D
\color_group_begin: \color_ensure_current:
\cs_set_protected:Npn \vcoffin_set_end:
{
\color_group_end:
\vbox_set_end:
\__coffin_reset_structure:N #1
\__coffin_update_poles:N #1
\__coffin_update_corners:N #1
\vbox_set_top:Nn \l__coffin_internal_box { \vbox_unpack:N #1 }
\__coffin_set_pole:Nnx #1 { T }
{
{ 0 pt }
{
\dim_eval:n { \box_ht:N #1 - \box_ht:N \l__coffin_internal_box }
}
{ 1000 pt }
{ 0 pt }
}
\box_clear:N \l__coffin_internal_box
}
}
}
\cs_new_protected_nopar:Npn \vcoffin_set_end: { }
\cs_generate_variant:Nn \vcoffin_set:Nnw { c }
\cs_new_protected:Npn \coffin_set_eq:NN #1#2
{
\__coffin_if_exist:NT #1
{
\box_set_eq:NN #1 #2
\__coffin_set_eq_structure:NN #1 #2
}
}
\cs_generate_variant:Nn \coffin_set_eq:NN { c , Nc , cc }
\coffin_new:N \c_empty_coffin
\hbox_set:Nn \c_empty_coffin { }
\coffin_new:N \l__coffin_aligned_coffin
\coffin_new:N \l__coffin_aligned_internal_coffin
\coffin_new:N \l_tmpa_coffin
\coffin_new:N \l_tmpb_coffin
\cs_new_eq:NN \coffin_dp:N \box_dp:N
\cs_new_eq:NN \coffin_dp:c \box_dp:c
\cs_new_eq:NN \coffin_ht:N \box_ht:N
\cs_new_eq:NN \coffin_ht:c \box_ht:c
\cs_new_eq:NN \coffin_wd:N \box_wd:N
\cs_new_eq:NN \coffin_wd:c \box_wd:c
\cs_new_protected:Npn \__coffin_get_pole:NnN #1#2#3
{
\prop_get:cnNF
{ l__coffin_poles_ \__int_value:w #1 _prop } {#2} #3
{
\__msg_kernel_error:nnxx { kernel } { unknown-coffin-pole }
{#2} { \token_to_str:N #1 }
\tl_set:Nn #3 { { 0 pt } { 0 pt } { 0 pt } { 0 pt } }
}
}
\cs_new_protected:Npn \__coffin_reset_structure:N #1
{
\prop_set_eq:cN { l__coffin_corners_ \__int_value:w #1 _prop }
\c__coffin_corners_prop
\prop_set_eq:cN { l__coffin_poles_ \__int_value:w #1 _prop }
\c__coffin_poles_prop
}
\cs_new_protected:Npn \__coffin_set_eq_structure:NN #1#2
{
\prop_set_eq:cc { l__coffin_corners_ \__int_value:w #1 _prop }
{ l__coffin_corners_ \__int_value:w #2 _prop }
\prop_set_eq:cc { l__coffin_poles_ \__int_value:w #1 _prop }
{ l__coffin_poles_ \__int_value:w #2 _prop }
}
\cs_new_protected:Npn \__coffin_gset_eq_structure:NN #1#2
{
\prop_gset_eq:cc { l__coffin_corners_ \__int_value:w #1 _prop }
{ l__coffin_corners_ \__int_value:w #2 _prop }
\prop_gset_eq:cc { l__coffin_poles_ \__int_value:w #1 _prop }
{ l__coffin_poles_ \__int_value:w #2 _prop }
}
\cs_new_protected:Npn \coffin_set_horizontal_pole:Nnn #1#2#3
{
\__coffin_if_exist:NT #1
{
\__coffin_set_pole:Nnx #1 {#2}
{
{ 0 pt } { \dim_eval:n {#3} }
{ 1000 pt } { 0 pt }
}
}
}
\cs_new_protected:Npn \coffin_set_vertical_pole:Nnn #1#2#3
{
\__coffin_if_exist:NT #1
{
\__coffin_set_pole:Nnx #1 {#2}
{
{ \dim_eval:n {#3} } { 0 pt }
{ 0 pt } { 1000 pt }
}
}
}
\cs_new_protected:Npn \__coffin_set_pole:Nnn #1#2#3
{ \prop_put:cnn { l__coffin_poles_ \__int_value:w #1 _prop } {#2} {#3} }
\cs_generate_variant:Nn \coffin_set_horizontal_pole:Nnn { c }
\cs_generate_variant:Nn \coffin_set_vertical_pole:Nnn { c }
\cs_generate_variant:Nn \__coffin_set_pole:Nnn { Nnx }
\cs_new_protected:Npn \__coffin_update_corners:N #1
{
\prop_put:cnx { l__coffin_corners_ \__int_value:w #1 _prop } { tl }
{ { 0 pt } { \dim_use:N \box_ht:N #1 } }
\prop_put:cnx { l__coffin_corners_ \__int_value:w #1 _prop } { tr }
{ { \dim_use:N \box_wd:N #1 } { \dim_use:N \box_ht:N #1 } }
\prop_put:cnx { l__coffin_corners_ \__int_value:w #1 _prop } { bl }
{ { 0 pt } { \dim_eval:n { - \box_dp:N #1 } } }
\prop_put:cnx { l__coffin_corners_ \__int_value:w #1 _prop } { br }
{ { \dim_use:N \box_wd:N #1 } { \dim_eval:n { - \box_dp:N #1 } } }
}
\cs_new_protected:Npn \__coffin_update_poles:N #1
{
\prop_put:cnx { l__coffin_poles_ \__int_value:w #1 _prop } { hc }
{
{ \dim_eval:n { 0.5 \box_wd:N #1 } }
{ 0 pt } { 0 pt } { 1000 pt }
}
\prop_put:cnx { l__coffin_poles_ \__int_value:w #1 _prop } { r }
{
{ \dim_use:N \box_wd:N #1 }
{ 0 pt } { 0 pt } { 1000 pt }
}
\prop_put:cnx { l__coffin_poles_ \__int_value:w #1 _prop } { vc }
{
{ 0 pt }
{ \dim_eval:n { ( \box_ht:N #1 - \box_dp:N #1 ) / 2 } }
{ 1000 pt }
{ 0 pt }
}
\prop_put:cnx { l__coffin_poles_ \__int_value:w #1 _prop } { t }
{
{ 0 pt }
{ \dim_use:N \box_ht:N #1 }
{ 1000 pt }
{ 0 pt }
}
\prop_put:cnx { l__coffin_poles_ \__int_value:w #1 _prop } { b }
{
{ 0 pt }
{ \dim_eval:n { - \box_dp:N #1 } }
{ 1000 pt }
{ 0 pt }
}
}
\cs_new_protected:Npn \__coffin_calculate_intersection:Nnn #1#2#3
{
\__coffin_get_pole:NnN #1 {#2} \l__coffin_pole_a_tl
\__coffin_get_pole:NnN #1 {#3} \l__coffin_pole_b_tl
\bool_set_false:N \l__coffin_error_bool
\exp_last_two_unbraced:Noo
\__coffin_calculate_intersection:nnnnnnnn
\l__coffin_pole_a_tl \l__coffin_pole_b_tl
\bool_if:NT \l__coffin_error_bool
{
\__msg_kernel_error:nn { kernel } { no-pole-intersection }
\dim_zero:N \l__coffin_x_dim
\dim_zero:N \l__coffin_y_dim
}
}
\cs_new_protected:Npn \__coffin_calculate_intersection:nnnnnnnn
#1#2#3#4#5#6#7#8
{
\dim_compare:nNnTF {#3} = { \c_zero_dim }
{
\dim_set:Nn \l__coffin_x_dim {#1}
\dim_compare:nNnTF {#7} = \c_zero_dim
{ \bool_set_true:N \l__coffin_error_bool }
{
\dim_compare:nNnTF {#8} = \c_zero_dim
{ \dim_set:Nn \l__coffin_y_dim {#6} }
{
\__coffin_calculate_intersection_aux:nnnnnN
{#1} {#5} {#6} {#7} {#8} \l__coffin_y_dim
}
}
}
{
\dim_compare:nNnTF {#4} = \c_zero_dim
{
\dim_set:Nn \l__coffin_y_dim {#2}
\dim_compare:nNnTF {#8} = { \c_zero_dim }
{ \bool_set_true:N \l__coffin_error_bool }
{
\dim_compare:nNnTF {#7} = \c_zero_dim
{ \dim_set:Nn \l__coffin_x_dim {#5} }
{
\__coffin_calculate_intersection_aux:nnnnnN
{#2} {#6} {#5} {#8} {#7} \l__coffin_x_dim
}
}
}
{
\dim_compare:nNnTF {#7} = \c_zero_dim
{
\dim_set:Nn \l__coffin_x_dim {#5}
\__coffin_calculate_intersection_aux:nnnnnN
{#5} {#1} {#2} {#3} {#4} \l__coffin_y_dim
}
{
\dim_compare:nNnTF {#8} = \c_zero_dim
{
\dim_set:Nn \l__coffin_x_dim {#6}
\__coffin_calculate_intersection_aux:nnnnnN
{#6} {#2} {#1} {#4} {#3} \l__coffin_x_dim
}
{
\fp_set:Nn \l__coffin_slope_x_fp
{ \dim_to_fp:n {#4} / \dim_to_fp:n {#3} }
\fp_set:Nn \l__coffin_slope_y_fp
{ \dim_to_fp:n {#8} / \dim_to_fp:n {#7} }
\fp_compare:nNnTF
\l__coffin_slope_x_fp = \l__coffin_slope_y_fp
{ \bool_set_true:N \l__coffin_error_bool }
{
\dim_set:Nn \l__coffin_x_dim
{
\fp_to_dim:n
{
(
\dim_to_fp:n {#1} * \l__coffin_slope_x_fp
- ( \dim_to_fp:n {#5} * \l__coffin_slope_y_fp )
- \dim_to_fp:n {#2}
+ \dim_to_fp:n {#6}
)
/
( \l__coffin_slope_x_fp - \l__coffin_slope_y_fp )
}
}
\__coffin_calculate_intersection_aux:nnnnnN
{ \l__coffin_x_dim }
{#5} {#6} {#8} {#7} \l__coffin_y_dim
}
}
}
}
}
}
\cs_new_protected:Npn \__coffin_calculate_intersection_aux:nnnnnN #1#2#3#4#5#6
{
\dim_set:Nn #6
{
\fp_to_dim:n
{
\dim_to_fp:n {#4} *
( \dim_to_fp:n {#1} - \dim_to_fp:n {#2} ) /
\dim_to_fp:n {#5}
+ \dim_to_fp:n {#3}
}
}
}
\cs_new_protected:Npn \coffin_join:NnnNnnnn #1#2#3#4#5#6#7#8
{
\__coffin_align:NnnNnnnnN
#1 {#2} {#3} #4 {#5} {#6} {#7} {#8} \l__coffin_aligned_coffin
\hbox_set:Nn \l__coffin_aligned_coffin
{
\dim_compare:nNnT { \l__coffin_offset_x_dim } < \c_zero_dim
{ \tex_kern:D -\l__coffin_offset_x_dim }
\hbox_unpack:N \l__coffin_aligned_coffin
\dim_set:Nn \l__coffin_internal_dim
{ \l__coffin_offset_x_dim - \box_wd:N #1 + \box_wd:N #4 }
\dim_compare:nNnT \l__coffin_internal_dim < \c_zero_dim
{ \tex_kern:D -\l__coffin_internal_dim }
}
\__coffin_reset_structure:N \l__coffin_aligned_coffin
\prop_clear:c
{ l__coffin_corners_ \__int_value:w \l__coffin_aligned_coffin _ prop }
\__coffin_update_poles:N \l__coffin_aligned_coffin
\dim_compare:nNnTF \l__coffin_offset_x_dim < \c_zero_dim
{
\__coffin_offset_poles:Nnn #1 { -\l__coffin_offset_x_dim } { 0 pt }
\__coffin_offset_poles:Nnn #4 { 0 pt } { \l__coffin_offset_y_dim }
\__coffin_offset_corners:Nnn #1 { -\l__coffin_offset_x_dim } { 0 pt }
\__coffin_offset_corners:Nnn #4 { 0 pt } { \l__coffin_offset_y_dim }
}
{
\__coffin_offset_poles:Nnn #1 { 0 pt } { 0 pt }
\__coffin_offset_poles:Nnn #4
{ \l__coffin_offset_x_dim } { \l__coffin_offset_y_dim }
\__coffin_offset_corners:Nnn #1 { 0 pt } { 0 pt }
\__coffin_offset_corners:Nnn #4
{ \l__coffin_offset_x_dim } { \l__coffin_offset_y_dim }
}
\__coffin_update_vertical_poles:NNN #1 #4 \l__coffin_aligned_coffin
\coffin_set_eq:NN #1 \l__coffin_aligned_coffin
}
\cs_generate_variant:Nn \coffin_join:NnnNnnnn { c , Nnnc , cnnc }
\cs_new_protected:Npn \coffin_attach:NnnNnnnn #1#2#3#4#5#6#7#8
{
\__coffin_align:NnnNnnnnN
#1 {#2} {#3} #4 {#5} {#6} {#7} {#8} \l__coffin_aligned_coffin
\box_set_ht:Nn \l__coffin_aligned_coffin { \box_ht:N #1 }
\box_set_dp:Nn \l__coffin_aligned_coffin { \box_dp:N #1 }
\box_set_wd:Nn \l__coffin_aligned_coffin { \box_wd:N #1 }
\__coffin_reset_structure:N \l__coffin_aligned_coffin
\prop_set_eq:cc
{ l__coffin_corners_ \__int_value:w \l__coffin_aligned_coffin _prop }
{ l__coffin_corners_ \__int_value:w #1 _prop }
\__coffin_update_poles:N \l__coffin_aligned_coffin
\__coffin_offset_poles:Nnn #1 { 0 pt } { 0 pt }
\__coffin_offset_poles:Nnn #4
{ \l__coffin_offset_x_dim } { \l__coffin_offset_y_dim }
\__coffin_update_vertical_poles:NNN #1 #4 \l__coffin_aligned_coffin
\coffin_set_eq:NN #1 \l__coffin_aligned_coffin
}
\cs_new_protected:Npn \coffin_attach_mark:NnnNnnnn #1#2#3#4#5#6#7#8
{
\__coffin_align:NnnNnnnnN
#1 {#2} {#3} #4 {#5} {#6} {#7} {#8} \l__coffin_aligned_coffin
\box_set_ht:Nn \l__coffin_aligned_coffin { \box_ht:N #1 }
\box_set_dp:Nn \l__coffin_aligned_coffin { \box_dp:N #1 }
\box_set_wd:Nn \l__coffin_aligned_coffin { \box_wd:N #1 }
\box_set_eq:NN #1 \l__coffin_aligned_coffin
}
\cs_generate_variant:Nn \coffin_attach:NnnNnnnn { c , Nnnc , cnnc }
\cs_new_protected:Npn \__coffin_align:NnnNnnnnN #1#2#3#4#5#6#7#8#9
{
\__coffin_calculate_intersection:Nnn #4 {#5} {#6}
\dim_set:Nn \l__coffin_x_prime_dim { \l__coffin_x_dim }
\dim_set:Nn \l__coffin_y_prime_dim { \l__coffin_y_dim }
\__coffin_calculate_intersection:Nnn #1 {#2} {#3}
\dim_set:Nn \l__coffin_offset_x_dim
{ \l__coffin_x_dim - \l__coffin_x_prime_dim + #7 }
\dim_set:Nn \l__coffin_offset_y_dim
{ \l__coffin_y_dim - \l__coffin_y_prime_dim + #8 }
\hbox_set:Nn \l__coffin_aligned_internal_coffin
{
\box_use:N #1
\tex_kern:D -\box_wd:N #1
\tex_kern:D \l__coffin_offset_x_dim
\box_move_up:nn { \l__coffin_offset_y_dim } { \box_use:N #4 }
}
\coffin_set_eq:NN #9 \l__coffin_aligned_internal_coffin
}
\cs_new_protected:Npn \__coffin_offset_poles:Nnn #1#2#3
{
\prop_map_inline:cn { l__coffin_poles_ \__int_value:w #1 _prop }
{ \__coffin_offset_pole:Nnnnnnn #1 {##1} ##2 {#2} {#3} }
}
\cs_new_protected:Npn \__coffin_offset_pole:Nnnnnnn #1#2#3#4#5#6#7#8
{
\dim_set:Nn \l__coffin_x_dim { #3 + #7 }
\dim_set:Nn \l__coffin_y_dim { #4 + #8 }
\tl_if_in:nnTF {#2} { - }
{ \tl_set:Nn \l__coffin_internal_tl { {#2} } }
{ \tl_set:Nn \l__coffin_internal_tl { { #1 - #2 } } }
\exp_last_unbraced:NNo \__coffin_set_pole:Nnx \l__coffin_aligned_coffin
{ \l__coffin_internal_tl }
{
{ \dim_use:N \l__coffin_x_dim } { \dim_use:N \l__coffin_y_dim }
{#5} {#6}
}
}
\cs_new_protected:Npn \__coffin_offset_corners:Nnn #1#2#3
{
\prop_map_inline:cn { l__coffin_corners_ \__int_value:w #1 _prop }
{ \__coffin_offset_corner:Nnnnn #1 {##1} ##2 {#2} {#3} }
}
\cs_new_protected:Npn \__coffin_offset_corner:Nnnnn #1#2#3#4#5#6
{
\prop_put:cnx
{ l__coffin_corners_ \__int_value:w \l__coffin_aligned_coffin _prop }
{ #1 - #2 }
{
{ \dim_eval:n { #3 + #5 } }
{ \dim_eval:n { #4 + #6 } }
}
}
\cs_new_protected:Npn \__coffin_update_vertical_poles:NNN #1#2#3
{
\__coffin_get_pole:NnN #3 { #1 -T } \l__coffin_pole_a_tl
\__coffin_get_pole:NnN #3 { #2 -T } \l__coffin_pole_b_tl
\exp_last_two_unbraced:Noo \__coffin_update_T:nnnnnnnnN
\l__coffin_pole_a_tl \l__coffin_pole_b_tl #3
\__coffin_get_pole:NnN #3 { #1 -B } \l__coffin_pole_a_tl
\__coffin_get_pole:NnN #3 { #2 -B } \l__coffin_pole_b_tl
\exp_last_two_unbraced:Noo \__coffin_update_B:nnnnnnnnN
\l__coffin_pole_a_tl \l__coffin_pole_b_tl #3
}
\cs_new_protected:Npn \__coffin_update_T:nnnnnnnnN #1#2#3#4#5#6#7#8#9
{
\dim_compare:nNnTF {#2} < {#6}
{
\__coffin_set_pole:Nnx #9 { T }
{ { 0 pt } {#6} { 1000 pt } { 0 pt } }
}
{
\__coffin_set_pole:Nnx #9 { T }
{ { 0 pt } {#2} { 1000 pt } { 0 pt } }
}
}
\cs_new_protected:Npn \__coffin_update_B:nnnnnnnnN #1#2#3#4#5#6#7#8#9
{
\dim_compare:nNnTF {#2} < {#6}
{
\__coffin_set_pole:Nnx #9 { B }
{ { 0 pt } {#2} { 1000 pt } { 0 pt } }
}
{
\__coffin_set_pole:Nnx #9 { B }
{ { 0 pt } {#6} { 1000 pt } { 0 pt } }
}
}
\cs_new_protected:Npn \coffin_typeset:Nnnnn #1#2#3#4#5
{
\hbox_unpack:N \c_empty_box
\__coffin_align:NnnNnnnnN \c_empty_coffin { H } { l }
#1 {#2} {#3} {#4} {#5} \l__coffin_aligned_coffin
\box_use:N \l__coffin_aligned_coffin
}
\cs_generate_variant:Nn \coffin_typeset:Nnnnn { c }
\coffin_new:N \l__coffin_display_coffin
\coffin_new:N \l__coffin_display_coord_coffin
\coffin_new:N \l__coffin_display_pole_coffin
\prop_new:N \l__coffin_display_handles_prop
\prop_put:Nnn \l__coffin_display_handles_prop { tl }
{ { b } { r } { -1 } { 1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { thc }
{ { b } { hc } { 0 } { 1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { tr }
{ { b } { l } { 1 } { 1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { vcl }
{ { vc } { r } { -1 } { 0 } }
\prop_put:Nnn \l__coffin_display_handles_prop { vchc }
{ { vc } { hc } { 0 } { 0 } }
\prop_put:Nnn \l__coffin_display_handles_prop { vcr }
{ { vc } { l } { 1 } { 0 } }
\prop_put:Nnn \l__coffin_display_handles_prop { bl }
{ { t } { r } { -1 } { -1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { bhc }
{ { t } { hc } { 0 } { -1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { br }
{ { t } { l } { 1 } { -1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Tl }
{ { t } { r } { -1 } { -1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Thc }
{ { t } { hc } { 0 } { -1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Tr }
{ { t } { l } { 1 } { -1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Hl }
{ { vc } { r } { -1 } { 1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Hhc }
{ { vc } { hc } { 0 } { 1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Hr }
{ { vc } { l } { 1 } { 1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Bl }
{ { b } { r } { -1 } { -1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Bhc }
{ { b } { hc } { 0 } { -1 } }
\prop_put:Nnn \l__coffin_display_handles_prop { Br }
{ { b } { l } { 1 } { -1 } }
\dim_new:N \l__coffin_display_offset_dim
\dim_set:Nn \l__coffin_display_offset_dim { 2 pt }
\dim_new:N \l__coffin_display_x_dim
\dim_new:N \l__coffin_display_y_dim
\prop_new:N \l__coffin_display_poles_prop
\tl_new:N \l__coffin_display_font_tl
\tl_set:Nn \l__coffin_display_font_tl { \sffamily \tiny }
\cs_new_protected:Npn \coffin_mark_handle:Nnnn #1#2#3#4
{
\hcoffin_set:Nn \l__coffin_display_pole_coffin
{
\color {#4}
\rule { 1 pt } { 1 pt }
}
\coffin_attach_mark:NnnNnnnn #1 {#2} {#3}
\l__coffin_display_pole_coffin { hc } { vc } { 0 pt } { 0 pt }
\hcoffin_set:Nn \l__coffin_display_coord_coffin
{
\color {#4}
\l__coffin_display_font_tl
( \tl_to_str:n { #2 , #3 } )
}
\prop_get:NnN \l__coffin_display_handles_prop
{ #2 #3 } \l__coffin_internal_tl
\quark_if_no_value:NTF \l__coffin_internal_tl
{
\prop_get:NnN \l__coffin_display_handles_prop
{ #3 #2 } \l__coffin_internal_tl
\quark_if_no_value:NTF \l__coffin_internal_tl
{
\coffin_attach_mark:NnnNnnnn #1 {#2} {#3}
\l__coffin_display_coord_coffin { l } { vc }
{ 1 pt } { 0 pt }
}
{
\exp_last_unbraced:No \__coffin_mark_handle_aux:nnnnNnn
\l__coffin_internal_tl #1 {#2} {#3}
}
}
{
\exp_last_unbraced:No \__coffin_mark_handle_aux:nnnnNnn
\l__coffin_internal_tl #1 {#2} {#3}
}
}
\cs_new_protected:Npn \__coffin_mark_handle_aux:nnnnNnn #1#2#3#4#5#6#7
{
\coffin_attach_mark:NnnNnnnn #5 {#6} {#7}
\l__coffin_display_coord_coffin {#1} {#2}
{ #3 \l__coffin_display_offset_dim }
{ #4 \l__coffin_display_offset_dim }
}
\cs_generate_variant:Nn \coffin_mark_handle:Nnnn { c }
\cs_new_protected:Npn \coffin_display_handles:Nn #1#2
{
\hcoffin_set:Nn \l__coffin_display_pole_coffin
{
\color {#2}
\rule { 1 pt } { 1 pt }
}
\prop_set_eq:Nc \l__coffin_display_poles_prop
{ l__coffin_poles_ \__int_value:w #1 _prop }
\__coffin_get_pole:NnN #1 { H } \l__coffin_pole_a_tl
\__coffin_get_pole:NnN #1 { T } \l__coffin_pole_b_tl
\tl_if_eq:NNT \l__coffin_pole_a_tl \l__coffin_pole_b_tl
{ \prop_remove:Nn \l__coffin_display_poles_prop { T } }
\__coffin_get_pole:NnN #1 { B } \l__coffin_pole_b_tl
\tl_if_eq:NNT \l__coffin_pole_a_tl \l__coffin_pole_b_tl
{ \prop_remove:Nn \l__coffin_display_poles_prop { B } }
\coffin_set_eq:NN \l__coffin_display_coffin #1
\prop_map_inline:Nn \l__coffin_display_poles_prop
{
\prop_remove:Nn \l__coffin_display_poles_prop {##1}
\__coffin_display_handles_aux:nnnnnn {##1} ##2 {#2}
}
\box_use:N \l__coffin_display_coffin
}
\cs_new_protected:Npn \__coffin_display_handles_aux:nnnnnn #1#2#3#4#5#6
{
\prop_map_inline:Nn \l__coffin_display_poles_prop
{
\bool_set_false:N \l__coffin_error_bool
\__coffin_calculate_intersection:nnnnnnnn {#2} {#3} {#4} {#5} ##2
\bool_if:NF \l__coffin_error_bool
{
\dim_set:Nn \l__coffin_display_x_dim { \l__coffin_x_dim }
\dim_set:Nn \l__coffin_display_y_dim { \l__coffin_y_dim }
\__coffin_display_attach:Nnnnn
\l__coffin_display_pole_coffin { hc } { vc }
{ 0 pt } { 0 pt }
\hcoffin_set:Nn \l__coffin_display_coord_coffin
{
\color {#6}
\l__coffin_display_font_tl
( \tl_to_str:n { #1 , ##1 } )
}
\prop_get:NnN \l__coffin_display_handles_prop
{ #1 ##1 } \l__coffin_internal_tl
\quark_if_no_value:NTF \l__coffin_internal_tl
{
\prop_get:NnN \l__coffin_display_handles_prop
{ ##1 #1 } \l__coffin_internal_tl
\quark_if_no_value:NTF \l__coffin_internal_tl
{
\__coffin_display_attach:Nnnnn
\l__coffin_display_coord_coffin { l } { vc }
{ 1 pt } { 0 pt }
}
{
\exp_last_unbraced:No
\__coffin_display_handles_aux:nnnn
\l__coffin_internal_tl
}
}
{
\exp_last_unbraced:No \__coffin_display_handles_aux:nnnn
\l__coffin_internal_tl
}
}
}
}
\cs_new_protected:Npn \__coffin_display_handles_aux:nnnn #1#2#3#4
{
\__coffin_display_attach:Nnnnn
\l__coffin_display_coord_coffin {#1} {#2}
{ #3 \l__coffin_display_offset_dim }
{ #4 \l__coffin_display_offset_dim }
}
\cs_generate_variant:Nn \coffin_display_handles:Nn { c }
\cs_new_protected:Npn \__coffin_display_attach:Nnnnn #1#2#3#4#5
{
\__coffin_calculate_intersection:Nnn #1 {#2} {#3}
\dim_set:Nn \l__coffin_x_prime_dim { \l__coffin_x_dim }
\dim_set:Nn \l__coffin_y_prime_dim { \l__coffin_y_dim }
\dim_set:Nn \l__coffin_offset_x_dim
{ \l__coffin_display_x_dim - \l__coffin_x_prime_dim + #4 }
\dim_set:Nn \l__coffin_offset_y_dim
{ \l__coffin_display_y_dim - \l__coffin_y_prime_dim + #5 }
\hbox_set:Nn \l__coffin_aligned_coffin
{
\box_use:N \l__coffin_display_coffin
\tex_kern:D -\box_wd:N \l__coffin_display_coffin
\tex_kern:D \l__coffin_offset_x_dim
\box_move_up:nn { \l__coffin_offset_y_dim } { \box_use:N #1 }
}
\box_set_ht:Nn \l__coffin_aligned_coffin
{ \box_ht:N \l__coffin_display_coffin }
\box_set_dp:Nn \l__coffin_aligned_coffin
{ \box_dp:N \l__coffin_display_coffin }
\box_set_wd:Nn \l__coffin_aligned_coffin
{ \box_wd:N \l__coffin_display_coffin }
\box_set_eq:NN \l__coffin_display_coffin \l__coffin_aligned_coffin
}
\cs_new_protected:Npn \coffin_show_structure:N #1
{
\__coffin_if_exist:NT #1
{
\__msg_show_variable:Nnn #1 { coffins }
{
\prop_map_function:cN
{ l__coffin_poles_ \__int_value:w #1 _prop }
\__msg_show_item_unbraced:nn
}
}
}
\cs_generate_variant:Nn \coffin_show_structure:N { c }
\__msg_kernel_new:nnnn { kernel } { no-pole-intersection }
{ No~intersection~between~coffin~poles. }
{
\c_msg_coding_error_text_tl
LaTeX~was~asked~to~find~the~intersection~between~two~poles,~
but~they~do~not~have~a~unique~meeting~point:~
the~value~(0~pt,~0~pt)~will~be~used.
}
\__msg_kernel_new:nnnn { kernel } { unknown-coffin }
{ Unknown~coffin~'#1'. }
{ The~coffin~'#1'~was~never~defined. }
\__msg_kernel_new:nnnn { kernel } { unknown-coffin-pole }
{ Pole~'#1'~unknown~for~coffin~'#2'. }
{
\c_msg_coding_error_text_tl
LaTeX~was~asked~to~find~a~typesetting~pole~for~a~coffin,~
but~either~the~coffin~does~not~exist~or~the~pole~name~is~wrong.
}
\__msg_kernel_new:nnn { kernel } { show-coffins }
{
Size~of~coffin~\token_to_str:N #1 : \\
> ~ ht~=~\dim_use:N \box_ht:N #1 \\
> ~ dp~=~\dim_use:N \box_dp:N #1 \\
> ~ wd~=~\dim_use:N \box_wd:N #1 \\
Poles~of~coffin~\token_to_str:N #1 :
}
%%
%%
%% End of file `l3coffins.sty'.
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