%% %% This is file `l3tl.sty', %% generated with the docstrip utility. %% %% The original source files were: %% %% l3tl.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: l3tl.dtx Copyright (C) 1990-2012 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 LaTeX3 Project. %% %% ----------------------------------------------------------------------- \RequirePackage{l3names} \GetIdInfo$Id: l3tl.dtx 3460 2012-02-26 12:16:41Z will $ {L3 Experimental token lists} \ProvidesExplPackage {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription} \package_check_loaded_expl: \cs_new_protected:Npn \tl_new:N #1 { \chk_if_free_cs:N #1 \cs_gset_eq:NN #1 \c_empty_tl } \cs_generate_variant:Nn \tl_new:N { c } \cs_new_protected:Npn \tl_const:Nn #1#2 { \chk_if_free_cs:N #1 \cs_gset_nopar:Npx #1 { \exp_not:n {#2} } } \cs_new_protected:Npn \tl_const:Nx #1#2 { \chk_if_free_cs:N #1 \cs_gset_nopar:Npx #1 {#2} } \cs_generate_variant:Nn \tl_const:Nn { c } \cs_generate_variant:Nn \tl_const:Nx { c } \tl_const:Nn \c_empty_tl { } \cs_new_protected:Npn \tl_clear:N #1 { \tl_set_eq:NN #1 \c_empty_tl } \cs_new_protected:Npn \tl_gclear:N #1 { \tl_gset_eq:NN #1 \c_empty_tl } \cs_generate_variant:Nn \tl_clear:N { c } \cs_generate_variant:Nn \tl_gclear:N { c } \cs_new_protected:Npn \tl_clear_new:N #1 { \cs_if_exist:NTF #1 { \tl_clear:N #1 } { \tl_new:N #1 } } \cs_new_protected:Npn \tl_gclear_new:N #1 { \cs_if_exist:NTF #1 { \tl_gclear:N #1 } { \tl_new:N #1 } } \cs_generate_variant:Nn \tl_clear_new:N { c } \cs_generate_variant:Nn \tl_gclear_new:N { c } \cs_new_eq:NN \tl_set_eq:NN \cs_set_eq:NN \cs_new_eq:NN \tl_set_eq:cN \cs_set_eq:cN \cs_new_eq:NN \tl_set_eq:Nc \cs_set_eq:Nc \cs_new_eq:NN \tl_set_eq:cc \cs_set_eq:cc \cs_new_eq:NN \tl_gset_eq:NN \cs_gset_eq:NN \cs_new_eq:NN \tl_gset_eq:cN \cs_gset_eq:cN \cs_new_eq:NN \tl_gset_eq:Nc \cs_gset_eq:Nc \cs_new_eq:NN \tl_gset_eq:cc \cs_gset_eq:cc \cs_new_protected:Npn \tl_set:Nn #1#2 { \cs_set_nopar:Npx #1 { \exp_not:n {#2} } } \cs_new_protected:Npn \tl_set:No #1#2 { \cs_set_nopar:Npx #1 { \exp_not:o {#2} } } \cs_new_protected:Npn \tl_set:Nx #1#2 { \cs_set_nopar:Npx #1 {#2} } \cs_new_protected:Npn \tl_gset:Nn #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:n {#2} } } \cs_new_protected:Npn \tl_gset:No #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:o {#2} } } \cs_new_protected:Npn \tl_gset:Nx #1#2 { \cs_gset_nopar:Npx #1 {#2} } \cs_generate_variant:Nn \tl_set:Nn { NV , Nv , Nf } \cs_generate_variant:Nn \tl_set:Nx { c } \cs_generate_variant:Nn \tl_set:Nn { c, co , cV , cv , cf } \cs_generate_variant:Nn \tl_gset:Nn { NV , Nv , Nf } \cs_generate_variant:Nn \tl_gset:Nx { c } \cs_generate_variant:Nn \tl_gset:Nn { c, co , cV , cv , cf } \cs_new_protected:Npn \tl_put_left:Nn #1#2 { \cs_set_nopar:Npx #1 { \exp_not:n {#2} \exp_not:o #1 } } \cs_new_protected:Npn \tl_put_left:NV #1#2 { \cs_set_nopar:Npx #1 { \exp_not:V #2 \exp_not:o #1 } } \cs_new_protected:Npn \tl_put_left:No #1#2 { \cs_set_nopar:Npx #1 { \exp_not:o {#2} \exp_not:o #1 } } \cs_new_protected:Npn \tl_put_left:Nx #1#2 { \cs_set_nopar:Npx #1 { #2 \exp_not:o #1 } } \cs_new_protected:Npn \tl_gput_left:Nn #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:n {#2} \exp_not:o #1 } } \cs_new_protected:Npn \tl_gput_left:NV #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:V #2 \exp_not:o #1 } } \cs_new_protected:Npn \tl_gput_left:No #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:o {#2} \exp_not:o #1 } } \cs_new_protected:Npn \tl_gput_left:Nx #1#2 { \cs_gset_nopar:Npx #1 { #2 \exp_not:o {#1} } } \cs_generate_variant:Nn \tl_put_left:Nn { c } \cs_generate_variant:Nn \tl_put_left:NV { c } \cs_generate_variant:Nn \tl_put_left:No { c } \cs_generate_variant:Nn \tl_put_left:Nx { c } \cs_generate_variant:Nn \tl_gput_left:Nn { c } \cs_generate_variant:Nn \tl_gput_left:NV { c } \cs_generate_variant:Nn \tl_gput_left:No { c } \cs_generate_variant:Nn \tl_gput_left:Nx { c } \cs_new_protected:Npn \tl_put_right:Nn #1#2 { \cs_set_nopar:Npx #1 { \exp_not:o #1 \exp_not:n {#2} } } \cs_new_protected:Npn \tl_put_right:NV #1#2 { \cs_set_nopar:Npx #1 { \exp_not:o #1 \exp_not:V #2 } } \cs_new_protected:Npn \tl_put_right:No #1#2 { \cs_set_nopar:Npx #1 { \exp_not:o #1 \exp_not:o {#2} } } \cs_new_protected:Npn \tl_put_right:Nx #1#2 { \cs_set_nopar:Npx #1 { \exp_not:o #1 #2 } } \cs_new_protected:Npn \tl_gput_right:Nn #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:o #1 \exp_not:n {#2} } } \cs_new_protected:Npn \tl_gput_right:NV #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:o #1 \exp_not:V #2 } } \cs_new_protected:Npn \tl_gput_right:No #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:o #1 \exp_not:o {#2} } } \cs_new_protected:Npn \tl_gput_right:Nx #1#2 { \cs_gset_nopar:Npx #1 { \exp_not:o {#1} #2 } } \cs_generate_variant:Nn \tl_put_right:Nn { c } \cs_generate_variant:Nn \tl_put_right:NV { c } \cs_generate_variant:Nn \tl_put_right:No { c } \cs_generate_variant:Nn \tl_put_right:Nx { c } \cs_generate_variant:Nn \tl_gput_right:Nn { c } \cs_generate_variant:Nn \tl_gput_right:NV { c } \cs_generate_variant:Nn \tl_gput_right:No { c } \cs_generate_variant:Nn \tl_gput_right:Nx { c } \group_begin: \tex_lccode:D `\A = `\@ \scan_stop: \tex_lccode:D `\B = `\@ \scan_stop: \tex_catcode:D `\A = 8 \scan_stop: \tex_catcode:D `\B = 3 \scan_stop: \tex_lowercase:D { \group_end: \tl_const:Nn \c_tl_rescan_marker_tl { A B } } \cs_new_protected_nopar:Npn \tl_set_rescan:Nnn { \tl_set_rescan_aux:NNnn \tl_set:Nn } \cs_new_protected_nopar:Npn \tl_gset_rescan:Nnn { \tl_set_rescan_aux:NNnn \tl_gset:Nn } \cs_new_protected_nopar:Npn \tl_rescan:nn { \tl_set_rescan_aux:NNnn \prg_do_nothing: \use:n } \cs_new_protected:Npn \tl_set_rescan_aux:NNnn #1#2#3#4 { \group_begin: \exp_args:No \etex_everyeof:D { \c_tl_rescan_marker_tl \exp_not:N } \tex_endlinechar:D \c_minus_one \tex_newlinechar:D \c_minus_one #3 \use:x { \group_end: #1 \exp_not:N #2 { \exp_after:wN \tl_rescan_aux:w \exp_after:wN \prg_do_nothing: \etex_scantokens:D {#4} } } } \use:x { \cs_new:Npn \exp_not:N \tl_rescan_aux:w ##1 \c_tl_rescan_marker_tl { \exp_not:N \exp_not:o { ##1 } } } \cs_generate_variant:Nn \tl_set_rescan:Nnn { Nno , Nnx } \cs_generate_variant:Nn \tl_set_rescan:Nnn { c , cno , cnx } \cs_generate_variant:Nn \tl_gset_rescan:Nnn { Nno , Nnx } \cs_generate_variant:Nn \tl_gset_rescan:Nnn { c , cno } \cs_new_eq:NN \tl_to_lowercase:n \tex_lowercase:D \cs_new_eq:NN \tl_to_uppercase:n \tex_uppercase:D \cs_new_protected_nopar:Npn \tl_replace_once:Nnn { \tl_replace_aux:NNNnn \tl_replace_once_aux: \tl_set:Nx } \cs_new_protected_nopar:Npn \tl_greplace_once:Nnn { \tl_replace_aux:NNNnn \tl_replace_once_aux: \tl_gset:Nx } \cs_new_protected_nopar:Npn \tl_replace_all:Nnn { \tl_replace_aux:NNNnn \tl_replace_all_aux: \tl_set:Nx } \cs_new_protected_nopar:Npn \tl_greplace_all:Nnn { \tl_replace_aux:NNNnn \tl_replace_all_aux: \tl_gset:Nx } \cs_generate_variant:Nn \tl_replace_once:Nnn { c } \cs_generate_variant:Nn \tl_greplace_once:Nnn { c } \cs_generate_variant:Nn \tl_replace_all:Nnn { c } \cs_generate_variant:Nn \tl_greplace_all:Nnn { c } \cs_new_protected:Npn \tl_replace_aux:NNNnn #1#2#3#4#5 { \tl_if_empty:nTF {#4} { \msg_kernel_error:nnx { tl } { empty-search-pattern } { \tl_to_str:n {#5} } } { \group_align_safe_begin: \cs_set:Npx \tl_tmp:w ##1##2 #4 { ##2 \exp_not:N \q_mark \exp_not:N \use_none_delimit_by_q_stop:w \exp_not:n { \exp_not:n {#5} } ##1 } \group_align_safe_end: #2 #3 { \exp_after:wN #1 #3 \q_mark #4 \q_stop } } } \cs_new:Npn \tl_replace_aux_ii:w #1 \q_mark #2 { \exp_not:o {#1} } \cs_new:Npn \tl_replace_all_aux: { \exp_after:wN \tl_replace_aux_ii:w \tl_tmp:w \tl_replace_all_aux: \prg_do_nothing: } \cs_new_nopar:Npn \tl_replace_once_aux: { \exp_after:wN \tl_replace_aux_ii:w \tl_tmp:w { \tl_replace_once_aux_end:w \prg_do_nothing: } \prg_do_nothing: } \cs_new:Npn \tl_replace_once_aux_end:w #1 \q_mark #2 \q_stop { \exp_not:o {#1} } \cs_new_protected:Npn \tl_remove_once:Nn #1#2 { \tl_replace_once:Nnn #1 {#2} { } } \cs_new_protected:Npn \tl_gremove_once:Nn #1#2 { \tl_greplace_once:Nnn #1 {#2} { } } \cs_generate_variant:Nn \tl_remove_once:Nn { c } \cs_generate_variant:Nn \tl_gremove_once:Nn { c } \cs_new_protected:Npn \tl_remove_all:Nn #1#2 { \tl_replace_all:Nnn #1 {#2} { } } \cs_new_protected:Npn \tl_gremove_all:Nn #1#2 { \tl_greplace_all:Nnn #1 {#2} { } } \cs_generate_variant:Nn \tl_remove_all:Nn { c } \cs_generate_variant:Nn \tl_gremove_all:Nn { c } \prg_new_conditional:Npnn \tl_if_blank:n #1 { p , T , F , TF } { \tl_if_empty_return:o { \use_none:n #1 ? } } \cs_generate_variant:Nn \tl_if_blank_p:n { V } \cs_generate_variant:Nn \tl_if_blank:nT { V } \cs_generate_variant:Nn \tl_if_blank:nF { V } \cs_generate_variant:Nn \tl_if_blank:nTF { V } \cs_generate_variant:Nn \tl_if_blank_p:n { o } \cs_generate_variant:Nn \tl_if_blank:nT { o } \cs_generate_variant:Nn \tl_if_blank:nF { o } \cs_generate_variant:Nn \tl_if_blank:nTF { o } \prg_new_conditional:Npnn \tl_if_empty:N #1 { p , T , F , TF } { \if_meaning:w #1 \c_empty_tl \prg_return_true: \else: \prg_return_false: \fi: } \cs_generate_variant:Nn \tl_if_empty_p:N { c } \cs_generate_variant:Nn \tl_if_empty:NT { c } \cs_generate_variant:Nn \tl_if_empty:NF { c } \cs_generate_variant:Nn \tl_if_empty:NTF { c } \prg_new_conditional:Npnn \tl_if_empty:n #1 { p , TF , T , F } { \exp_after:wN \if_meaning:w \exp_after:wN \q_nil \tl_to_str:n {#1} \q_nil \prg_return_true: \else: \prg_return_false: \fi: } \cs_generate_variant:Nn \tl_if_empty_p:n { V } \cs_generate_variant:Nn \tl_if_empty:nTF { V } \cs_generate_variant:Nn \tl_if_empty:nT { V } \cs_generate_variant:Nn \tl_if_empty:nF { V } \cs_new:Npn \tl_if_empty_return:o #1 { \exp_after:wN \if_meaning:w \exp_after:wN \q_nil \tl_to_str:n \exp_after:wN {#1} \q_nil \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \tl_if_empty:o #1 { p , TF , T , F } { \tl_if_empty_return:o {#1} } \prg_new_conditional:Npnn \tl_if_eq:NN #1#2 { p , T , F , TF } { \if_meaning:w #1 #2 \prg_return_true: \else: \prg_return_false: \fi: } \cs_generate_variant:Nn \tl_if_eq_p:NN { Nc , c , cc } \cs_generate_variant:Nn \tl_if_eq:NNTF { Nc , c , cc } \cs_generate_variant:Nn \tl_if_eq:NNT { Nc , c , cc } \cs_generate_variant:Nn \tl_if_eq:NNF { Nc , c , cc } \prg_new_protected_conditional:Npnn \tl_if_eq:nn #1#2 { T , F , TF } { \group_begin: \tl_set:Nn \l_tl_internal_a_tl {#1} \tl_set:Nn \l_tl_internal_b_tl {#2} \if_meaning:w \l_tl_internal_a_tl \l_tl_internal_b_tl \group_end: \prg_return_true: \else: \group_end: \prg_return_false: \fi: } \tl_new:N \l_tl_internal_a_tl \tl_new:N \l_tl_internal_b_tl \cs_new_protected_nopar:Npn \tl_if_in:NnT { \exp_args:No \tl_if_in:nnT } \cs_new_protected_nopar:Npn \tl_if_in:NnF { \exp_args:No \tl_if_in:nnF } \cs_new_protected_nopar:Npn \tl_if_in:NnTF { \exp_args:No \tl_if_in:nnTF } \cs_generate_variant:Nn \tl_if_in:NnT { c } \cs_generate_variant:Nn \tl_if_in:NnF { c } \cs_generate_variant:Nn \tl_if_in:NnTF { c } \prg_new_protected_conditional:Npnn \tl_if_in:nn #1#2 { T , F , TF } { \cs_set:Npn \tl_tmp:w ##1 #2 { } \tl_if_empty:oTF { \tl_tmp:w #1 {} {} #2 } { \prg_return_false: } { \prg_return_true: } } \cs_generate_variant:Nn \tl_if_in:nnT { V , o , no } \cs_generate_variant:Nn \tl_if_in:nnF { V , o , no } \cs_generate_variant:Nn \tl_if_in:nnTF { V , o , no } \cs_new:Npn \tl_map_function:nN #1#2 { \tl_map_function_aux:Nn #2 #1 \q_recursion_tail \prg_break_point:n { } } \cs_new_nopar:Npn \tl_map_function:NN { \exp_args:No \tl_map_function:nN } \cs_new:Npn \tl_map_function_aux:Nn #1#2 { \quark_if_recursion_tail_break:n {#2} #1 {#2} \tl_map_function_aux:Nn #1 } \cs_generate_variant:Nn \tl_map_function:NN { c } \cs_new_protected:Npn \tl_map_inline:nn #1#2 { \int_gincr:N \g_prg_map_int \cs_gset:cpn { tl_map_inline_ \int_use:N \g_prg_map_int :n } ##1 {#2} \exp_args:Nc \tl_map_function_aux:Nn { tl_map_inline_ \int_use:N \g_prg_map_int :n } #1 \q_recursion_tail \prg_break_point:n { \int_gdecr:N \g_prg_map_int } } \cs_new_protected:Npn \tl_map_inline:Nn { \exp_args:No \tl_map_inline:nn } \cs_generate_variant:Nn \tl_map_inline:Nn { c } \cs_new_protected:Npn \tl_map_variable:nNn #1#2#3 { \tl_map_variable_aux:Nnn #2 {#3} #1 \q_recursion_tail \prg_break_point:n { } } \cs_new_protected_nopar:Npn \tl_map_variable:NNn { \exp_args:No \tl_map_variable:nNn } \cs_new_protected:Npn \tl_map_variable_aux:Nnn #1#2#3 { \tl_set:Nn #1 {#3} \quark_if_recursion_tail_break:N #1 \use:n {#2} \tl_map_variable_aux:Nnn #1 {#2} } \cs_generate_variant:Nn \tl_map_variable:NNn { c } \cs_new_eq:NN \tl_map_break: \prg_map_break: \cs_new_eq:NN \tl_map_break:n \prg_map_break:n \cs_new_eq:NN \tl_to_str:n \etex_detokenize:D \cs_new:Npn \tl_to_str:N #1 { \etex_detokenize:D \exp_after:wN {#1} } \cs_generate_variant:Nn \tl_to_str:N { c } \cs_new:Npn \tl_use:N #1 { \cs_if_exist:NTF #1 {#1} { \msg_expandable_kernel_error:nnn { kernel } { bad-var } {#1} } } \cs_generate_variant:Nn \tl_use:N { c } \cs_new:Npn \tl_length:n #1 { \int_eval:n { 0 \tl_map_function:nN {#1} \tl_length_aux:n } } \cs_new:Npn \tl_length:N #1 { \int_eval:n { 0 \tl_map_function:NN #1 \tl_length_aux:n } } \cs_new:Npn \tl_length_aux:n #1 { + \c_one } \cs_generate_variant:Nn \tl_length:n { V , o } \cs_generate_variant:Nn \tl_length:N { c } \cs_new:Npn \tl_reverse_items:n #1 { \tl_reverse_items_aux:nwNwn #1 ? \q_mark \tl_reverse_items_aux:nwNwn \q_mark \tl_reverse_items_aux:wn \q_stop { } } \cs_new:Npn \tl_reverse_items_aux:nwNwn #1 #2 \q_mark #3 #4 \q_stop #5 { #3 #2 \q_mark \tl_reverse_items_aux:nwNwn \q_mark \tl_reverse_items_aux:wn \q_stop { {#1} #5 } } \cs_new:Npn \tl_reverse_items_aux:wn #1 \q_stop #2 { \exp_not:o { \use_none:nn #2 } } \cs_set:Npn \tl_tmp:w #1 { \cs_new:Npn \tl_trim_spaces:n ##1 { \etex_unexpanded:D \tl_trim_spaces_aux_i:w \q_mark ##1 \q_nil \q_mark #1 { } \q_mark \tl_trim_spaces_aux_ii:w \tl_trim_spaces_aux_iii:w #1 \q_nil \tl_trim_spaces_aux_iv:w \q_stop } \cs_new:Npn \tl_trim_spaces_aux_i:w ##1 \q_mark #1 ##2 \q_mark ##3 { ##3 \tl_trim_spaces_aux_i:w \q_mark ##2 \q_mark #1 {##1} } \cs_new:Npn \tl_trim_spaces_aux_ii:w ##1 \q_mark \q_mark ##2 { \tl_trim_spaces_aux_iii:w ##2 } \cs_new:Npn \tl_trim_spaces_aux_iii:w ##1 #1 \q_nil ##2 { ##2 ##1 \q_nil \tl_trim_spaces_aux_iii:w } \cs_new:Npn \tl_trim_spaces_aux_iv:w ##1 \q_nil ##2 \q_stop { \exp_after:wN { \use_none:n ##1 } } } \tl_tmp:w { ~ } \cs_new_protected:Npn \tl_trim_spaces:N #1 { \tl_set:Nx #1 { \exp_after:wN \tl_trim_spaces:n \exp_after:wN {#1} } } \cs_new_protected:Npn \tl_gtrim_spaces:N #1 { \tl_gset:Nx #1 { \exp_after:wN \tl_trim_spaces:n \exp_after:wN {#1} } } \cs_generate_variant:Nn \tl_trim_spaces:N { c } \cs_generate_variant:Nn \tl_gtrim_spaces:N { c } \cs_new:Npn \tl_head:w #1#2 \q_stop {#1} \cs_new:Npn \tl_tail:w #1#2 \q_stop {#2} \cs_new:Npn \tl_head:n #1 { \etex_unexpanded:D \exp_after:wN { \tl_head:w #1 { } \q_stop } } \cs_new:Npn \tl_tail:n #1 { \etex_unexpanded:D \tl_tail_aux:w #1 \q_mark { } \q_mark \q_stop } \cs_new:Npn \tl_tail_aux:w #1 #2 \q_mark #3 \q_stop { {#2} } \cs_new_nopar:Npn \tl_head:N { \exp_args:No \tl_head:n } \cs_generate_variant:Nn \tl_head:n { V , v , f } \cs_new_nopar:Npn \tl_tail:N { \exp_args:No \tl_tail:n } \cs_generate_variant:Nn \tl_tail:n { V , v , f } \cs_new:Npn \str_head:n #1 { \exp_after:wN \str_head_aux:w \tl_to_str:n {#1} { { } } ~ \q_stop } \cs_new:Npn \str_head_aux:w #1 ~ % { \tl_head:w #1 { ~ } } \cs_new:Npn \str_tail:n #1 { \exp_after:wN \str_tail_aux:w \reverse_if:N \if_charcode:w \scan_stop: \tl_to_str:n {#1} X X \q_stop } \cs_new:Npn \str_tail_aux:w #1 X #2 \q_stop { \fi: #1 } \prg_new_conditional:Npnn \tl_if_head_eq_charcode:nN #1#2 { p , T , F , TF } { \if_charcode:w \exp_not:N #2 \tl_if_head_N_type:nTF { #1 ? } { \exp_after:wN \exp_not:N \tl_head:w #1 \q_nil \q_stop } { \str_head:n {#1} } \prg_return_true: \else: \prg_return_false: \fi: } \cs_generate_variant:Nn \tl_if_head_eq_charcode_p:nN { f } \cs_generate_variant:Nn \tl_if_head_eq_charcode:nNTF { f } \cs_generate_variant:Nn \tl_if_head_eq_charcode:nNT { f } \cs_generate_variant:Nn \tl_if_head_eq_charcode:nNF { f } \prg_new_conditional:Npnn \tl_if_head_eq_catcode:nN #1 #2 { p , T , F , TF } { \if_catcode:w \exp_not:N #2 \tl_if_head_N_type:nTF { #1 ? } { \exp_after:wN \exp_not:N \tl_head:w #1 \q_nil \q_stop } { \tl_if_head_group:nTF {#1} { \c_group_begin_token } { \c_space_token } } \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \tl_if_head_eq_meaning:nN #1#2 { p , T , F , TF } { \tl_if_head_N_type:nTF { #1 ? } { \tl_if_head_eq_meaning_aux_normal:nN } { \tl_if_head_eq_meaning_aux_special:nN } {#1} #2 } \cs_new:Npn \tl_if_head_eq_meaning_aux_normal:nN #1 #2 { \exp_after:wN \if_meaning:w \tl_head:w #1 \q_nil \q_stop #2 \prg_return_true: \else: \prg_return_false: \fi: } \cs_new:Npn \tl_if_head_eq_meaning_aux_special:nN #1 #2 { \if_charcode:w \str_head:n {#1} \exp_not:N #2 \exp_after:wN \use:n \else: \prg_return_false: \exp_after:wN \use_none:n \fi: { \if_catcode:w \exp_not:N #2 \tl_if_head_group:nTF {#1} { \c_group_begin_token } { \c_space_token } \prg_return_true: \else: \prg_return_false: \fi: } } \prg_new_conditional:Npnn \tl_if_head_N_type:n #1 { p , T , F , TF } { \str_if_eq_return:xx { \exp_not:o { \use:n #1 { } } } { \exp_not:n { #1 { } } } } \prg_new_conditional:Npnn \tl_if_head_group:n #1 { p , T , F , TF } { \if_catcode:w * \exp_after:wN \use_none:n \exp_after:wN { \exp_after:wN { \token_to_str:N #1 ? } } * \prg_return_false: \else: \prg_return_true: \fi: } \prg_new_conditional:Npnn \tl_if_head_space:n #1 { p , T , F , TF } { \tex_romannumeral:D \if_false: { \fi: \tl_if_head_space_aux:w ? #1 ? ~ } } \cs_new:Npn \tl_if_head_space_aux:w #1 ~ { \tl_if_empty:oTF { \use_none:n #1 } { \exp_after:wN \c_zero \exp_after:wN \prg_return_true: } { \exp_after:wN \c_zero \exp_after:wN \prg_return_false: } \exp_after:wN \use_none:n \exp_after:wN { \if_false: } \fi: } \cs_new_protected:Npn \tl_show:N #1 { \cs_show:N #1 } \cs_generate_variant:Nn \tl_show:N { c } \cs_new_eq:NN \tl_show:n \etex_showtokens:D \tl_const:Nx \c_job_name_tl { \tex_jobname:D } \tl_const:Nn \c_space_tl { ~ } \tl_new:N \g_tmpa_tl \tl_new:N \g_tmpb_tl \tl_new:N \l_tmpa_tl \tl_new:N \l_tmpb_tl \cs_new:Npn \str_if_eq_return:xx #1 #2 { \if_int_compare:w \pdftex_strcmp:D {#1} {#2} = \c_zero \prg_return_true: \else: \prg_return_false: \fi: } \cs_new:Npn \tl_if_single_p:N { \exp_args:No \tl_if_single_p:n } \cs_new:Npn \tl_if_single:NT { \exp_args:No \tl_if_single:nT } \cs_new:Npn \tl_if_single:NF { \exp_args:No \tl_if_single:nF } \cs_new:Npn \tl_if_single:NTF { \exp_args:No \tl_if_single:nTF } \prg_new_conditional:Npnn \tl_if_single:n #1 { p , T , F , TF } { \str_if_eq_return:xx { \exp_not:o { \use_none:nn #1 ?? } } {?} } \prg_new_conditional:Npnn \tl_if_single_token:n #1 { p , T , F , TF } { \tl_if_head_N_type:nTF {#1} { \str_if_eq_return:xx { \exp_not:o { \use_none:n #1 } } { } } { \str_if_eq_return:xx { \exp_not:n {#1} } { ~ } } } \cs_new:Npn \tl_act:NNNnn { \tex_romannumeral:D \tl_act_aux:NNNnn } \cs_new:Npn \tl_act_aux:NNNnn #1 #2 #3 #4 #5 { \group_align_safe_begin: \tl_act_loop:w #5 \q_tl_act_mark \q_tl_act_stop {#4} #1 #2 #3 \tl_act_result:n { } } \cs_new:Npn \tl_act_loop:w #1 \q_tl_act_stop { \tl_if_head_N_type:nTF {#1} { \tl_act_normal:NwnNNN } { \tl_if_head_group:nTF {#1} { \tl_act_group:nwnNNN } { \tl_act_space:wwnNNN } } #1 \q_tl_act_stop } \cs_new:Npn \tl_act_normal:NwnNNN #1 #2 \q_tl_act_stop #3#4 { \if_meaning:w \q_tl_act_mark #1 \exp_after:wN \tl_act_end:wn \fi: #4 {#3} #1 \tl_act_loop:w #2 \q_tl_act_stop {#3} #4 } \cs_new:Npn \tl_act_end:wn #1 \tl_act_result:n #2 { \group_align_safe_end: \c_zero #2 } \cs_new:Npn \tl_act_group:nwnNNN #1 #2 \q_tl_act_stop #3#4#5 { #5 {#3} {#1} \tl_act_loop:w #2 \q_tl_act_stop {#3} #4 #5 } \exp_last_unbraced:NNo \cs_new:Npn \tl_act_space:wwnNNN \c_space_tl #1 \q_tl_act_stop #2#3#4#5 { #5 {#2} \tl_act_loop:w #1 \q_tl_act_stop {#2} #3 #4 #5 } \cs_new:Npn \tl_act_output:n #1 #2 \tl_act_result:n #3 { #2 \tl_act_result:n { #3 #1 } } \cs_new:Npn \tl_act_reverse_output:n #1 #2 \tl_act_result:n #3 { #2 \tl_act_result:n { #1 #3 } } \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_reverse_tokens:n #1 { \etex_unexpanded:D \exp_after:wN { \tex_romannumeral:D \tl_act_aux:NNNnn \tl_act_reverse_normal:nN \tl_act_reverse_group:nn \tl_act_reverse_space:n { } {#1} } } \cs_new:Npn \tl_act_reverse_space:n #1 { \tl_act_reverse_output:n {~} } \cs_new:Npn \tl_act_reverse_normal:nN #1 #2 { \tl_act_reverse_output:n {#2} } \cs_new:Npn \tl_act_reverse_group:nn #1 { \tl_act_group_recurse:Nnn \tl_act_reverse_output:n { \tl_reverse_tokens:n } } \cs_new:Npn \tl_reverse:n #1 { \etex_unexpanded:D \exp_after:wN { \tex_romannumeral:D \tl_act_aux:NNNnn \tl_act_reverse_normal:nN \tl_act_reverse_group_preserve:nn \tl_act_reverse_space:n { } {#1} } } \cs_new:Npn \tl_act_reverse_group_preserve:nn #1 #2 { \tl_act_reverse_output:n { {#2} } } \cs_generate_variant:Nn \tl_reverse:n { o , V } \cs_new_protected:Npn \tl_reverse:N #1 { \tl_set:Nx #1 { \exp_args:No \tl_reverse:n { #1 } } } \cs_new_protected:Npn \tl_greverse:N #1 { \tl_gset:Nx #1 { \exp_args:No \tl_reverse:n { #1 } } } \cs_generate_variant:Nn \tl_reverse:N { c } \cs_generate_variant:Nn \tl_greverse:N { c } \cs_new:Npn \tl_length_tokens:n #1 { \int_eval:n { \tl_act_aux:NNNnn \tl_act_length_normal:nN \tl_act_length_group:nn \tl_act_length_space:n { } {#1} } } \cs_new:Npn \tl_act_length_normal:nN #1 #2 { 1 + } \cs_new:Npn \tl_act_length_space:n #1 { 1 + } \cs_new:Npn \tl_act_length_group:nn #1 #2 { 2 + \tl_length_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_aux: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 \prg_case_str: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_aux:nn { \int_eval:n { \int_compare:nNnT {#2} < \c_zero { \tl_length:n {#1} + } #2 } } #1 \q_recursion_tail \prg_break_point:n { } } \cs_new:Npn \tl_item_aux:nn #1#2 { \quark_if_recursion_tail_break:n {#2} \int_compare:nNnTF {#1} = \c_zero { \tl_map_break:n { \exp_not:n {#2} } } { \exp_args:Nf \tl_item_aux: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 } \prg_new_conditional:Npnn \tl_if_empty:x #1 { p , T , F , TF } { \str_if_eq_return:xx { } {#1} } %% %% %% End of file `l3tl.sty'.