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%%
%% This is file `GS1.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% GS1.dtx (with options: `package')
%%
%% EXPERIMENTAL CODE
%%
%% This Work depends on the correct version of expl3 release. If
%% you'll update expl3 you may need a update of this this Work too.
%%
%% Do not distribute this file without also distributing the
%% source files specified above.
%%
%% Do not distribute modified version of this file.
%%
%% File: GS1.dtx Copyright (C) 2012 Markus Kohm
%%
%% 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 "GS1 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.
%%
%% -------------------------------------------------------------------------
\RequirePackage{l3names}
\GetIdInfo$Id: GS1.dtx 9 2012-08-01 09:31:32Z mjk $
{GS1 code handler and barcode generator}
\ProvidesExplPackage
{\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
\RequirePackage{expl3}[2012/07/16]
\RequirePackage{rule-D}
\cs_new_nopar:Npn \__GS_new_seq_c:cn #1#2
{
\seq_new:c {c__GS_ #1 _seq}
\seq_set_split:Nnn \l_tmpa_seq {} {#2}
\seq_gset_eq:cN {c__GS_ #1 _seq} \l_tmpa_seq
}
\__GS_new_seq_c:cn {AB0} {AAAAAA}
\__GS_new_seq_c:cn {AB1} {AABABB}
\__GS_new_seq_c:cn {AB2} {AABBAB}
\__GS_new_seq_c:cn {AB3} {AABBBA}
\__GS_new_seq_c:cn {AB4} {ABAABB}
\__GS_new_seq_c:cn {AB5} {ABBAAB}
\__GS_new_seq_c:cn {AB6} {ABBBAA}
\__GS_new_seq_c:cn {AB7} {ABABAB}
\__GS_new_seq_c:cn {AB8} {ABABBA}
\__GS_new_seq_c:cn {AB9} {ABBABA}
\__GS_new_seq_c:cn {A0} {3211} % start white (C0 same but start with black)
\__GS_new_seq_c:cn {A1} {2221}
\__GS_new_seq_c:cn {A2} {2122}
\__GS_new_seq_c:cn {A3} {1411}
\__GS_new_seq_c:cn {A4} {1132}
\__GS_new_seq_c:cn {A5} {1231}
\__GS_new_seq_c:cn {A6} {1114}
\__GS_new_seq_c:cn {A7} {1312}
\__GS_new_seq_c:cn {A8} {1213}
\__GS_new_seq_c:cn {A9} {3112}
\__GS_new_seq_c:cn {B0} {1123} % start white
\__GS_new_seq_c:cn {B1} {1222}
\__GS_new_seq_c:cn {B2} {2212}
\__GS_new_seq_c:cn {B3} {1141}
\__GS_new_seq_c:cn {B4} {2311}
\__GS_new_seq_c:cn {B5} {1321}
\__GS_new_seq_c:cn {B6} {4111}
\__GS_new_seq_c:cn {B7} {2131}
\__GS_new_seq_c:cn {B8} {3121}
\__GS_new_seq_c:cn {B9} {2113}
\__GS_new_seq_c:cn {margin} {111} % start black
\__GS_new_seq_c:cn {separator} {11111} % start white
\__GS_new_seq_c:cn {special} {111111} % start white
\__GS_new_seq_c:cn {extra_margin} {112} % start black
\__GS_new_seq_c:cn {extra_separator} {11} % start white
\dim_const:Nn \c__GS_module_min_width_dim {0.264mm}
\dim_const:Nn \c__GS_module_norm_width_dim {0.33mm}
\cs_new_nopar:Npn \__GS_set_key_code:nn #1#2
{
\tl_if_exist:NF \l_GS_code_type_tl { \tl_new:N \l_GS_code_type_tl }
\tl_set:Nn \l_GS_code_type_tl { #1 }
\int_if_exist:NF \l_GS_code_size_int { \int_new:N \l_GS_code_size_int }
\int_set:Nn \l_GS_code_size_int { #2 }
}
\keys_define:nn { GS1 }
{
ocrb .bool_set:N = \l_GS_use_ocrb_bool,
ocrb .initial:n = true,
module_width .dim_set:N = \l_GS_module_wd_dim,
module_width .initial:V = \c__GS_module_norm_width_dim,
module_height .dim_set:N = \l_GS_module_ht_dim,
module_height .initial:V = \c_zero_dim,
code .choice:,
code / EAN-8 .code:n = { \__GS_set_key_code:nn { EAN } { 8 } },
code / EAN8 .code:n = { \__GS_set_key_code:nn { EAN } { 8 } },
code / EAN-13 .code:n = { \__GS_set_key_code:nn { EAN } { 13 } },
code / EAN13 .code:n = { \__GS_set_key_code:nn { EAN } { 13 } },
code .initial:n = EAN-13,
scale .fp_set:N = \l_GS_scale_fp,
scale .initial:n = 1.0,
scale_to_font .bool_set:N = \l_GS_scale_to_font_bool,
scale_to_font .initial:n = false,
add_control .bool_set:N = \l_GS_add_control_bool,
add_control .initial:n = false,
}
\seq_new:N \l__GS_code_seq
\msg_new:nnnn { GS1 } { EAN-code-size }
{
#1~isn't~a~valid~EAN~code~\msg_line_context:.
}
{
The~given~code~is~neither~a~EAN-8~with~or~without~control~digit,\\
nor~a~EAN-13~with~or~without~control~digit.\\\\
The~GS1~module~currently~only~supports~EAN-8~and~EAN~13.
}
\cs_new_nopar:Npn \GS_set_code_digit_seq:Nn #1#2
{
\seq_set_eq:NN #1 \c_empty_seq
\tl_map_inline:nn
{ #2 }
{
\tl_if_in:nnT
{0123456789}
{##1}
{
\seq_put_right:Nn #1 { ##1 }
}
}
}
\cs_new_nopar:Npn \GS_cut_EAN_control_digit:N #1
{
\int_case:nnn
{ \seq_count:N #1 }
{
{ 7 } { }
{ 8 } { \seq_pop_right:NN #1 \l_tempa_tl }
{ 12 } { }
{ 13 } { \seq_pop_right:NN #1 \l_tempa_tl }
}
{
\msg_error:nnn { GS1 } { EAN-code-size } { #1 }
}
}
\cs_new_nopar:Npn \int_set_to_EAN_control_digit:NN #1#2
{
\int_zero:N #1
\seq_set_eq:NN \l_tmpa_seq #2
\bool_until_do:nn
{ \seq_if_empty_p:N \l_tmpa_seq }
{
\seq_pop_left:NN \l_tmpa_seq \l_tmpb_tl
\int_if_even:nTF
{ \seq_count:N \l_tmpa_seq }
{
\int_add:Nn #1 { 3 * \l_tmpb_tl }
}
{
\int_add:Nn #1 { \l_tmpb_tl }
}
}
\int_set:Nn #1 { \int_mod:nn { 10 - \int_mod:nn { #1 } { 10 } } { 10 } }
}
\cs_new_nopar:Npn \GS_set_EAN_control_digit:N #1
{
\GS_cut_EAN_control_digit:N #1
\int_set_to_EAN_control_digit:NN \l_tmpa_int #1
\seq_put_right:NV #1 \l_tmpa_int
}
\cs_new_nopar:Npn \__GS_modules:Nn #1#2
{
\seq_map_inline:Nn #1
{
\bool_if:NTF \l__GS_black_bool
{
\bool_set_false:N \l__GS_black_bool
\hbox_set:Nn \l_tmpa_box { 0 }
\rule:nnn
{
\dim_eval:n
{
\box_ht:N \l_tmpa_box + \l_GS_module_wd_dim / 2
- \dim_eval:n { #2 } + \l_GS_module_ht_dim
}
}
{ \dim_eval:n { \l_GS_module_wd_dim * ##1 } }
{ \dim_eval:n { #2 } }
}
{
\bool_set_true:N \l__GS_black_bool
\hbox_to_wd:nn { \l_GS_module_wd_dim * ##1 } { }
}
}
}
\cs_new_nopar:Npn \__GS_modules:NnN #1#2#3
{
\bool_if_exist:NF \l__GS_black_bool { \bool_new:N \l__GS_black_bool }
\bool_set_eq:NN \l__GS_black_bool #3
\__GS_modules:Nn #1 { #2 }
}
\cs_new_nopar:Npn \__GS_modules_start_black:Nn #1#2
{
\__GS_modules:NnN #1 { #2 } \c_true_bool
}
\cs_new_nopar:Npn \__GS_modules_start_white:Nn #1#2
{
\__GS_modules:NnN #1 { #2 } \c_false_bool
}
\cs_generate_variant:Nn \__GS_modules:Nn { c }
\cs_new_nopar:Npn \GS_use_as_EAN_barcode:N #1
{
\seq_set_eq:NN \l__GS_code_seq #1
\leavevmode
\int_compare:nNnTF { \l_GS_code_size_int } { = } { 8 }
{
\hbox_to_wd:nn { \l_GS_module_wd_dim * 7 } { }
\seq_set_eq:Nc \l_GS_system_seq { c__GS_AB0_seq }
}
{
\hbox_to_wd:nn { \l_GS_module_wd_dim * 11 } { }
\seq_pop_left:NN \l__GS_code_seq \l_tmpa_tl
\seq_set_eq:Nc \l_GS_system_seq { c__GS_AB \l_tmpa_tl _seq }
\hbox_overlap_left:n { \l_tmpa_tl }
}
\__GS_modules_start_black:Nn \c__GS_margin_seq
{ \l_GS_module_ht_dim + \l_GS_module_wd_dim * 5 }
\int_step_inline:nnnn { 1 } { 1 }
{ \int_div_truncate:nn { \l_GS_code_size_int } { 2 } }
{
\seq_pop_left:NN \l__GS_code_seq \l_tmpa_tl
\hbox_overlap_right:n { \l_tmpa_tl }
\seq_pop_left:NN \l_GS_system_seq \l_tmpb_tl
\__GS_modules:cn { c__GS_ \l_tmpb_tl \l_tmpa_tl _seq }
{ \l_GS_module_ht_dim }
}
\__GS_modules_start_white:Nn \c__GS_separator_seq
{ \l_GS_module_ht_dim + \l_GS_module_wd_dim * 5 }
\int_step_inline:nnnn { 1 } { 1 }
{ \int_div_truncate:nn { \l_GS_code_size_int } { 2 } }
{
\seq_pop_left:NN \l__GS_code_seq \l_tmpa_tl
\hbox_overlap_right:n { \l_tmpa_tl }
\__GS_modules:cn { c__GS_A \l_tmpa_tl _seq }
{ \l_GS_module_ht_dim }
}
\__GS_modules_start_black:Nn \c__GS_margin_seq
{ \l_GS_module_ht_dim + \l_GS_module_wd_dim * 5 }
\hbox_to_wd:nn { \l_GS_module_wd_dim * 7 } { }
}
\RequirePackage{xparse}
\NewDocumentCommand \EANControlDigit
{ m }
{
\group_begin:
\GS_set_code_digit_seq:Nn \l__GS_code_seq { #1 }
\GS_cut_EAN_control_digit:N \l__GS_code_seq
\int_set_to_EAN_control_digit:NN \l_tmpa_int \l__GS_code_seq
\int_to_arabic:n { \l_tmpa_int }
\group_end:
}
\NewDocumentCommand \EANBarcode
{ o m }
{
\group_begin:
\IfNoValueF{#1}{ \keys_set:nn { GS1 } { #1 } }
\dim_compare:nNnT { \l_GS_module_ht_dim } { = } { \c_zero_dim }
{
\int_compare:nNnTF { \l_GS_code_size_int } { = } { 8 }
{ \dim_set:Nn \l_GS_module_ht_dim { 21.31 mm } }
{ \dim_set:Nn \l_GS_module_ht_dim { 25.01 mm } }
}
\bool_if:nT \l_GS_use_ocrb_bool
{
\usefont{OT1}{ocrb}{m}{n}\fontsize{9}{9}\selectfont
}
\GS_set_code_digit_seq:Nn \l__GS_code_seq { #2 }
\bool_if:NT \l_GS_add_control_bool
{
\GS_set_EAN_control_digit:N \l__GS_code_seq
}
\int_compare:nNnT
{ \seq_count:N \l__GS_code_seq }
{ > }
{ \l_GS_code_size_int }
{
\msg_error:nnn { GS1 } { EAN-code-size } { #2 }
}
\int_while_do:nNnn
{ \seq_count:N \l__GS_code_seq }
{ < }
{ \l_GS_code_size_int }
{
\seq_put_left:Nn \l__GS_code_seq { 0 }
}
\GS_use_as_EAN_barcode:N \l__GS_code_seq
\group_end:
}
\NewDocumentCommand \GSSetup
{ m }
{ \keys_set:nn { GS1 } { #1 } }
%%
%%
%% End of file `GS1.sty'.
|
