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Diffstat (limited to 'macros/xetex/latex/xepersian-hm/kashida-xepersian-hm.def')
-rw-r--r-- | macros/xetex/latex/xepersian-hm/kashida-xepersian-hm.def | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/macros/xetex/latex/xepersian-hm/kashida-xepersian-hm.def b/macros/xetex/latex/xepersian-hm/kashida-xepersian-hm.def new file mode 100644 index 0000000000..ce3a9600dc --- /dev/null +++ b/macros/xetex/latex/xepersian-hm/kashida-xepersian-hm.def @@ -0,0 +1,132 @@ +%% +%% This is file `kashida-xepersian-hm.def' +%% +%% Copyright (c) Hossein Movahhedian 2020 +%% +%% It may be distributed and/or modified under the LaTeX Project Public License, +%% version 1.3c or higher (your choice). The latest version of +%% this license is at: http://www.latex-project.org/lppl.txt +%% +%% Copyright notice: the following code is partly adapted from the code in +%% 'kashida-xepersian.def' from xepersian package (v22.8). +\ExplSyntaxOn +\ProvidesExplFile {kashida-xepersian.def} {2018/01/04} {0.1} { Fixes~implementation~of~Kashida~in~xepersian~package } + +\int_const:Nn \c_xepersian_zwj_int {"200D} % zero-width joiner +\int_const:Nn \c_xepersian_lrm_int {"200E} % left-right-mark +\int_const:Nn \c_xepersian_two_int {2} % 2 +\int_const:Nn \c_xepersian_four_int {4} % 4 +\int_const:Nn \c_xepersian_ksh_int {"0640} % kashida +\int_const:Nn \c_xepersian_d_int {10} % dual-joiner class +\int_const:Nn \c_xepersian_l_int {11} % lam +\int_const:Nn \c_xepersian_r_int {12} % right-joiner +\int_const:Nn \c_xepersian_a_int {13} % alef +\int_const:Nn \c_xepersian_h_int {14} % heh +\int_const:Nn \c_xepersian_y_int {15} % yeh +\int_const:Nn \c_xepersian_v_int {4096} % vowel or other combining mark (to be ignored) + +\bool_new:N \l_kashida_on_bool +\bool_new:N \l_kashida_hm_fix_bool +\bool_new:N \l_kashida_xb_fix_bool + +\tl_new:N \l_hskip_zero_tl +\tl_new:N \l_hskip_default_tl + +\cs_new:Npn \xepersian_kashida #1 + { + \bool_if:NT \l_kashida_on_bool + { + \c_xepersian_lrm_int\c_xepersian_zwj_int\tex_penalty:D 10000 + \tex_leaders:D \tex_hrule:D height \XeTeXglyphbounds \c_xepersian_two_int + \int_use:N \XeTeXcharglyph \c_xepersian_ksh_int depth \XeTeXglyphbounds \c_xepersian_four_int + \int_use:N \XeTeXcharglyph \c_xepersian_ksh_int \skip_horizontal:n { #1 } + \c_xepersian_zwj_int + } + } + +\XeTeXinterchartokenstate = 1 + +\clist_set:Nn \l_xepersian_a_clist { 0622,0623,0625,0627 } % ا، إ، أ، آ +\clist_map_inline:Nn \l_xepersian_a_clist + { + \XeTeXcharclass "#1 \c_xepersian_a_int + } + +\clist_set:Nn \l_xepersian_d_clist { 0626,0628,062A,062B,062C,062D,062E,0633,0634,0635,0636,0637,0638,0639,063A,0640,0641,0642,0643,0645,0646,0647,067E,0686,06A9,06AF } % ئ,ب,ت,ث,ج,ح,خ,س,ش,ص,ض,ط,ظ,ع,غ,ـ,ف,ق,ك,م,ن,ه,پ,چ,ک,گ +\clist_map_inline:Nn \l_xepersian_d_clist + { + \XeTeXcharclass "#1 \c_xepersian_d_int + } + +\clist_set:Nn \l_xepersian_l_clist { 0644 } % ل +\clist_map_inline:Nn \l_xepersian_l_clist + { + \XeTeXcharclass "#1 \c_xepersian_l_int + } + +\clist_set:Nn \l_xepersian_r_clist { 0624,0629,062F,0630,0631,0632,0648,0698 } % ؤ,ة,د,ذ,ر,ز,و,ژ +\clist_map_inline:Nn \l_xepersian_r_clist + { + \XeTeXcharclass "#1 \c_xepersian_r_int + } + +\clist_set:Nn \l_xepersian_v_clist { 064B,064C,064D,064E,064F,0650,0651,0652 } % ً,ٌ,ٍ,َ,ُ,ِ,ّ,ْ +\clist_map_inline:Nn \l_xepersian_v_clist + { + \XeTeXcharclass "#1 \c_xepersian_v_int + } + +\clist_set:Nn \l_xepersian_y_clist { 0649,064A,06CC } +\clist_map_inline:Nn \l_xepersian_y_clist + { + \XeTeXcharclass "#1 \c_xepersian_y_int + } + +\XeTeXinterchartoks \c_xepersian_y_int \c_xepersian_y_int = {\bool_if:NTF \l_kashida_hm_fix_bool {\xepersian_kashida {\l_hskip_default_tl}} {\xepersian_kashida \l_hskip_zero_tl}} +\XeTeXinterchartoks \c_xepersian_d_int \c_xepersian_y_int = {\bool_if:NTF \l_kashida_hm_fix_bool {\xepersian_kashida {\l_hskip_default_tl}} {\xepersian_kashida \l_hskip_zero_tl}} +\XeTeXinterchartoks \c_xepersian_y_int \c_xepersian_d_int = {\xepersian_kashida \l_hskip_zero_tl} +\XeTeXinterchartoks \c_xepersian_d_int \c_xepersian_d_int = {\xepersian_kashida \l_hskip_zero_tl} +\XeTeXinterchartoks \c_xepersian_l_int \c_xepersian_d_int = {\xepersian_kashida \l_hskip_zero_tl} +\XeTeXinterchartoks \c_xepersian_d_int \c_xepersian_l_int = {\xepersian_kashida \l_hskip_zero_tl} +\XeTeXinterchartoks \c_xepersian_l_int \c_xepersian_l_int = {\xepersian_kashida \l_hskip_zero_tl} +\XeTeXinterchartoks \c_xepersian_d_int \c_xepersian_r_int = {\xepersian_kashida \l_hskip_zero_tl} +\XeTeXinterchartoks \c_xepersian_d_int \c_xepersian_a_int = {\xepersian_kashida \l_hskip_zero_tl} +\XeTeXinterchartoks \c_xepersian_l_int \c_xepersian_r_int = {\xepersian_kashida \l_hskip_zero_tl} +\XeTeXinterchartoks \c_xepersian_l_int \c_xepersian_a_int = {} + +\NewDocumentCommand \KashidaOn {} { \bool_set_true:N \l_kashida_on_bool } +\NewDocumentCommand \KashidaOff {} { \bool_set_false:N \l_kashida_on_bool } + +\NewDocumentCommand \KashidaXBFixOn {} { \bool_set_true:N \l_kashida_xb_fix_bool } +\NewDocumentCommand \KashidaXBFixOff {} { \bool_set_false:N \l_kashida_xb_fix_bool } + +\NewDocumentCommand \KashidaHMFixOn {} { \bool_set_true:N \l_kashida_hm_fix_bool } +\NewDocumentCommand \KashidaHMFixOff {} { \bool_set_false:N \l_kashida_hm_fix_bool } + +\ExplSyntaxOff +\makeatletter +\newif\if@Kashida@on +\newif\if@Kashida@XB@fix +\makeatother +\ExplSyntaxOn + +\KashidaHMFixOn + +\tl_set:Nn \l_hskip_zero_tl { 0 em plus 0.5 em } + +\bool_if:NTF \l_kashida_hm_fix_bool + { + \tl_if_empty:NT \l_hskip_default_tl { \tl_set:Nn \l_hskip_default_tl { 0.14 em plus 0.5 em } } + } + { + \tl_set:NV \l_hskip_default_tl \l_hskip_zero_tl + } + +\KashidaOn + +\ExplSyntaxOff +\endinput + +%% +%% END OF FILE +%% |