%% %% This is file `l3token.sty', %% generated with the docstrip utility. %% %% The original source files were: %% %% l3token.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: l3token.dtx Copyright (C) 2005-2013 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{l3bootstrap} \GetIdInfo$Id: l3token.dtx 4587 2013-08-25 21:30:10Z joseph $ {L3 Experimental token manipulation} \ProvidesExplPackage {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription} \__expl_package_check: \cs_new_protected:Npn \char_set_catcode:nn #1#2 { \tex_catcode:D #1 = \__int_eval:w #2 \__int_eval_end: } \cs_new:Npn \char_value_catcode:n #1 { \tex_the:D \tex_catcode:D \__int_eval:w #1\__int_eval_end: } \cs_new_protected:Npn \char_show_value_catcode:n #1 { \tex_showthe:D \tex_catcode:D \__int_eval:w #1 \__int_eval_end: } \cs_new_protected:Npn \char_set_catcode_escape:N #1 { \char_set_catcode:nn { `#1 } \c_zero } \cs_new_protected:Npn \char_set_catcode_group_begin:N #1 { \char_set_catcode:nn { `#1 } \c_one } \cs_new_protected:Npn \char_set_catcode_group_end:N #1 { \char_set_catcode:nn { `#1 } \c_two } \cs_new_protected:Npn \char_set_catcode_math_toggle:N #1 { \char_set_catcode:nn { `#1 } \c_three } \cs_new_protected:Npn \char_set_catcode_alignment:N #1 { \char_set_catcode:nn { `#1 } \c_four } \cs_new_protected:Npn \char_set_catcode_end_line:N #1 { \char_set_catcode:nn { `#1 } \c_five } \cs_new_protected:Npn \char_set_catcode_parameter:N #1 { \char_set_catcode:nn { `#1 } \c_six } \cs_new_protected:Npn \char_set_catcode_math_superscript:N #1 { \char_set_catcode:nn { `#1 } \c_seven } \cs_new_protected:Npn \char_set_catcode_math_subscript:N #1 { \char_set_catcode:nn { `#1 } \c_eight } \cs_new_protected:Npn \char_set_catcode_ignore:N #1 { \char_set_catcode:nn { `#1 } \c_nine } \cs_new_protected:Npn \char_set_catcode_space:N #1 { \char_set_catcode:nn { `#1 } \c_ten } \cs_new_protected:Npn \char_set_catcode_letter:N #1 { \char_set_catcode:nn { `#1 } \c_eleven } \cs_new_protected:Npn \char_set_catcode_other:N #1 { \char_set_catcode:nn { `#1 } \c_twelve } \cs_new_protected:Npn \char_set_catcode_active:N #1 { \char_set_catcode:nn { `#1 } \c_thirteen } \cs_new_protected:Npn \char_set_catcode_comment:N #1 { \char_set_catcode:nn { `#1 } \c_fourteen } \cs_new_protected:Npn \char_set_catcode_invalid:N #1 { \char_set_catcode:nn { `#1 } \c_fifteen } \cs_new_protected:Npn \char_set_catcode_escape:n #1 { \char_set_catcode:nn {#1} \c_zero } \cs_new_protected:Npn \char_set_catcode_group_begin:n #1 { \char_set_catcode:nn {#1} \c_one } \cs_new_protected:Npn \char_set_catcode_group_end:n #1 { \char_set_catcode:nn {#1} \c_two } \cs_new_protected:Npn \char_set_catcode_math_toggle:n #1 { \char_set_catcode:nn {#1} \c_three } \cs_new_protected:Npn \char_set_catcode_alignment:n #1 { \char_set_catcode:nn {#1} \c_four } \cs_new_protected:Npn \char_set_catcode_end_line:n #1 { \char_set_catcode:nn {#1} \c_five } \cs_new_protected:Npn \char_set_catcode_parameter:n #1 { \char_set_catcode:nn {#1} \c_six } \cs_new_protected:Npn \char_set_catcode_math_superscript:n #1 { \char_set_catcode:nn {#1} \c_seven } \cs_new_protected:Npn \char_set_catcode_math_subscript:n #1 { \char_set_catcode:nn {#1} \c_eight } \cs_new_protected:Npn \char_set_catcode_ignore:n #1 { \char_set_catcode:nn {#1} \c_nine } \cs_new_protected:Npn \char_set_catcode_space:n #1 { \char_set_catcode:nn {#1} \c_ten } \cs_new_protected:Npn \char_set_catcode_letter:n #1 { \char_set_catcode:nn {#1} \c_eleven } \cs_new_protected:Npn \char_set_catcode_other:n #1 { \char_set_catcode:nn {#1} \c_twelve } \cs_new_protected:Npn \char_set_catcode_active:n #1 { \char_set_catcode:nn {#1} \c_thirteen } \cs_new_protected:Npn \char_set_catcode_comment:n #1 { \char_set_catcode:nn {#1} \c_fourteen } \cs_new_protected:Npn \char_set_catcode_invalid:n #1 { \char_set_catcode:nn {#1} \c_fifteen } \cs_new_protected:Npn \char_set_mathcode:nn #1#2 { \tex_mathcode:D #1 = \__int_eval:w #2 \__int_eval_end: } \cs_new:Npn \char_value_mathcode:n #1 { \tex_the:D \tex_mathcode:D \__int_eval:w #1\__int_eval_end: } \cs_new_protected:Npn \char_show_value_mathcode:n #1 { \tex_showthe:D \tex_mathcode:D \__int_eval:w #1 \__int_eval_end: } \cs_new_protected:Npn \char_set_lccode:nn #1#2 { \tex_lccode:D #1 = \__int_eval:w #2 \__int_eval_end: } \cs_new:Npn \char_value_lccode:n #1 { \tex_the:D \tex_lccode:D \__int_eval:w #1\__int_eval_end: } \cs_new_protected:Npn \char_show_value_lccode:n #1 { \tex_showthe:D \tex_lccode:D \__int_eval:w #1 \__int_eval_end: } \cs_new_protected:Npn \char_set_uccode:nn #1#2 { \tex_uccode:D #1 = \__int_eval:w #2 \__int_eval_end: } \cs_new:Npn \char_value_uccode:n #1 { \tex_the:D \tex_uccode:D \__int_eval:w #1\__int_eval_end: } \cs_new_protected:Npn \char_show_value_uccode:n #1 { \tex_showthe:D \tex_uccode:D \__int_eval:w #1 \__int_eval_end: } \cs_new_protected:Npn \char_set_sfcode:nn #1#2 { \tex_sfcode:D #1 = \__int_eval:w #2 \__int_eval_end: } \cs_new:Npn \char_value_sfcode:n #1 { \tex_the:D \tex_sfcode:D \__int_eval:w #1\__int_eval_end: } \cs_new_protected:Npn \char_show_value_sfcode:n #1 { \tex_showthe:D \tex_sfcode:D \__int_eval:w #1 \__int_eval_end: } \cs_new_protected:Npn \token_new:Nn #1#2 { \cs_new_eq:NN #1 #2 } \cs_new_eq:NN \c_group_begin_token { \cs_new_eq:NN \c_group_end_token } \group_begin: \char_set_catcode_math_toggle:N \* \token_new:Nn \c_math_toggle_token { * } \char_set_catcode_alignment:N \* \token_new:Nn \c_alignment_token { * } \token_new:Nn \c_parameter_token { # } \token_new:Nn \c_math_superscript_token { ^ } \char_set_catcode_math_subscript:N \* \token_new:Nn \c_math_subscript_token { * } \token_new:Nn \c_space_token { ~ } \token_new:Nn \c_catcode_letter_token { a } \token_new:Nn \c_catcode_other_token { 1 } \group_end: \group_begin: \char_set_catcode_active:N \* \tl_const:Nn \c_catcode_active_tl { \exp_not:N * } \group_end: \seq_new:N \l_char_active_seq \use:n { \group_begin: \char_set_catcode_active:N \" \char_set_catcode_active:N \$ \char_set_catcode_active:N \& \char_set_catcode_active:N \^ \char_set_catcode_active:N \_ \char_set_catcode_active:N \~ \use:nn { \group_end: \seq_set_split:Nnn \l_char_active_seq { } } } { { " $ & ^ _ ~ } } %$ \seq_new:N \l_char_special_seq \seq_set_split:Nnn \l_char_special_seq { } { \ \" \# \$ \% \& \\ \^ \_ \{ \} \~ } \prg_new_conditional:Npnn \token_if_group_begin:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_group_begin_token \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_group_end:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_group_end_token \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_math_toggle:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_math_toggle_token \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_alignment:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_alignment_token \prg_return_true: \else: \prg_return_false: \fi: } \group_begin: \cs_set_eq:NN \c_parameter_token \scan_stop: \prg_new_conditional:Npnn \token_if_parameter:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_parameter_token \prg_return_true: \else: \prg_return_false: \fi: } \group_end: \prg_new_conditional:Npnn \token_if_math_superscript:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_math_superscript_token \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_math_subscript:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_math_subscript_token \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_space:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_space_token \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_letter:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_catcode_letter_token \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_other:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_catcode_other_token \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_active:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \c_catcode_active_tl \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_eq_meaning:NN #1#2 { p , T , F , TF } { \if_meaning:w #1 #2 \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_eq_catcode:NN #1#2 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \exp_not:N #2 \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_eq_charcode:NN #1#2 { p , T , F , TF } { \if_charcode:w \exp_not:N #1 \exp_not:N #2 \prg_return_true: \else: \prg_return_false: \fi: } \group_begin: \char_set_catcode_other:N \M \char_set_catcode_other:N \A \char_set_lccode:nn { `\; } { `\: } \char_set_lccode:nn { `\T } { `\T } \char_set_lccode:nn { `\F } { `\F } \tl_to_lowercase:n { \group_end: \prg_new_conditional:Npnn \token_if_macro:N #1 { p , T , F , TF } { \exp_after:wN \__token_if_macro_p:w \token_to_meaning:N #1 MA; \q_stop } \cs_new:Npn \__token_if_macro_p:w #1 MA #2 ; #3 \q_stop { \if_int_compare:w \pdftex_strcmp:D { #2 } { cro } = \c_zero \prg_return_true: \else: \prg_return_false: \fi: } } \prg_new_conditional:Npnn \token_if_cs:N #1 { p , T , F , TF } { \if_catcode:w \exp_not:N #1 \scan_stop: \prg_return_true: \else: \prg_return_false: \fi: } \prg_new_conditional:Npnn \token_if_expandable:N #1 { p , T , F , TF } { \exp_after:wN \if_meaning:w \exp_not:N #1 #1 \prg_return_false: \else: \if_cs_exist:N #1 \prg_return_true: \else: \prg_return_false: \fi: \fi: } \group_begin: \char_set_lccode:nn { `T } { `T } \char_set_lccode:nn { `F } { `F } \char_set_lccode:nn { `X } { `n } \char_set_lccode:nn { `Y } { `t } \char_set_lccode:nn { `Z } { `d } \tl_map_inline:nn { A C E G H I K L M O P R S U X Y Z R " } { \char_set_catcode:nn { `#1 } \c_twelve } \tl_to_lowercase:n { \group_end: \prg_new_conditional:Npnn \token_if_chardef:N #1 { p , T , F , TF } { \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_chardef:w \token_to_meaning:N #1 CHAR" \q_stop } { \token_to_str:N \char } } \prg_new_conditional:Npnn \token_if_mathchardef:N #1 { p , T , F , TF } { \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_chardef:w \token_to_meaning:N #1 CHAR" \q_stop } { \token_to_str:N \mathchar } } \cs_new:Npn \__token_if_chardef:w #1 CHAR" #2 \q_stop { #1 CHAR } \prg_new_conditional:Npnn \token_if_dim_register:N #1 { p , T , F , TF } { \if_meaning:w \tex_dimen:D #1 \prg_return_false: \else: \if_meaning:w \tex_dimendef:D #1 \prg_return_false: \else: \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_dim_register:w \token_to_meaning:N #1 ZIMEX \q_stop } { \token_to_str:N \ } \fi: \fi: } \cs_new:Npn \__token_if_dim_register:w #1 ZIMEX #2 \q_stop { #1 ~ } \prg_new_conditional:Npnn \token_if_int_register:N #1 { p , T , F , TF } { % \token_if_chardef:NTF #1 { \prg_return_true: } % { % \token_if_mathchardef:NTF #1 { \prg_return_true: } % { \if_meaning:w \tex_count:D #1 \prg_return_false: \else: \if_meaning:w \tex_countdef:D #1 \prg_return_false: \else: \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_int_register:w \token_to_meaning:N #1 COUXY \q_stop } { \token_to_str:N \ } \fi: \fi: % } % } } \cs_new:Npn \__token_if_int_register:w #1 COUXY #2 \q_stop { #1 ~ } \prg_new_conditional:Npnn \token_if_muskip_register:N #1 { p , T , F , TF } { \if_meaning:w \tex_muskip:D #1 \prg_return_false: \else: \if_meaning:w \tex_muskipdef:D #1 \prg_return_false: \else: \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_muskip_register:w \token_to_meaning:N #1 MUSKIP \q_stop } { \token_to_str:N \ } \fi: \fi: } \cs_new:Npn \__token_if_muskip_register:w #1 MUSKIP #2 \q_stop { #1 ~ } \prg_new_conditional:Npnn \token_if_skip_register:N #1 { p , T , F , TF } { \if_meaning:w \tex_skip:D #1 \prg_return_false: \else: \if_meaning:w \tex_skipdef:D #1 \prg_return_false: \else: \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_skip_register:w \token_to_meaning:N #1 SKIP \q_stop } { \token_to_str:N \ } \fi: \fi: } \cs_new:Npn \__token_if_skip_register:w #1 SKIP #2 \q_stop { #1 ~ } \prg_new_conditional:Npnn \token_if_toks_register:N #1 { p , T , F , TF } { \if_meaning:w \tex_toks:D #1 \prg_return_false: \else: \if_meaning:w \tex_toksdef:D #1 \prg_return_false: \else: \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_toks_register:w \token_to_meaning:N #1 YOKS \q_stop } { \token_to_str:N \ } \fi: \fi: } \cs_new:Npn \__token_if_toks_register:w #1 YOKS #2 \q_stop { #1 ~ } \prg_new_conditional:Npnn \token_if_protected_macro:N #1 { p , T , F , TF } { \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_protected_macro:w \token_to_meaning:N #1 PROYECYEZ~MACRO \q_stop } { \token_to_str:N \ } } \cs_new:Npn \__token_if_protected_macro:w #1 PROYECYEZ~MACRO #2 \q_stop { #1 ~ } \prg_new_conditional:Npnn \token_if_long_macro:N #1 { p , T , F , TF } { \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_long_macro:w \token_to_meaning:N #1 LOXG~MACRO \q_stop } { \token_to_str:N \ } } \prg_new_conditional:Npnn \token_if_protected_long_macro:N #1 { p , T , F , TF } { \__str_if_eq_x_return:nn { \exp_after:wN \__token_if_long_macro:w \token_to_meaning:N #1 LOXG~MACRO \q_stop } { \token_to_str:N \protected \token_to_str:N \ } } \cs_new:Npn \__token_if_long_macro:w #1 LOXG~MACRO #2 \q_stop { #1 ~ } } \tex_chardef:D \c_token_A_int = `A ~ % \group_begin: \char_set_catcode_other:N \; \char_set_lccode:nn { `\; } { `\: } \char_set_lccode:nn { `\T } { `\T } \char_set_lccode:nn { `\F } { `\F } \tl_to_lowercase:n { \group_end: \prg_new_conditional:Npnn \token_if_primitive:N #1 { p , T , F , TF } { \token_if_macro:NTF #1 \prg_return_false: { \exp_after:wN \__token_if_primitive:NNw \token_to_meaning:N #1 ; ; ; \q_stop #1 } } \cs_new:Npn \__token_if_primitive:NNw #1#2 #3 ; #4 \q_stop { \tl_if_empty:oTF { \__token_if_primitive_space:w #3 ~ } { \__token_if_primitive_loop:N #3 ; \q_stop } { \__token_if_primitive_nullfont:N } } } \cs_new:Npn \__token_if_primitive_space:w #1 ~ { } \cs_new:Npn \__token_if_primitive_nullfont:N #1 { \if_meaning:w \tex_nullfont:D #1 \prg_return_true: \else: \prg_return_false: \fi: } \cs_new:Npn \__token_if_primitive_loop:N #1 { \if_int_compare:w `#1 < \c_token_A_int % \exp_after:wN \__token_if_primitive:Nw \exp_after:wN #1 \else: \exp_after:wN \__token_if_primitive_loop:N \fi: } \cs_new:Npn \__token_if_primitive:Nw #1 #2 \q_stop { \if:w : #1 \exp_after:wN \__token_if_primitive_undefined:N \else: \prg_return_false: \exp_after:wN \use_none:n \fi: } \cs_new:Npn \__token_if_primitive_undefined:N #1 { \if_cs_exist:N #1 \prg_return_true: \else: \prg_return_false: \fi: } \cs_new_eq:NN \l_peek_token ? \cs_new_eq:NN \g_peek_token ? \cs_new_eq:NN \l__peek_search_token ? \tl_new:N \l__peek_search_tl \cs_new_nopar:Npn \__peek_true:w { } \cs_new_nopar:Npn \__peek_true_aux:w { } \cs_new_nopar:Npn \__peek_false:w { } \cs_new:Npn \__peek_tmp:w { } \cs_new_protected_nopar:Npn \peek_after:Nw { \tex_futurelet:D \l_peek_token } \cs_new_protected_nopar:Npn \peek_gafter:Nw { \tex_global:D \tex_futurelet:D \g_peek_token } \cs_new_protected:Npn \__peek_true_remove:w { \group_align_safe_end: \tex_afterassignment:D \__peek_true_aux:w \cs_set_eq:NN \__peek_tmp:w } \cs_new_protected:Npn \__peek_token_generic:NNTF #1#2#3#4 { \cs_set_eq:NN \l__peek_search_token #2 \tl_set:Nn \l__peek_search_tl {#2} \cs_set_nopar:Npx \__peek_true:w { \exp_not:N \group_align_safe_end: \exp_not:n {#3} } \cs_set_nopar:Npx \__peek_false:w { \exp_not:N \group_align_safe_end: \exp_not:n {#4} } \group_align_safe_begin: \peek_after:Nw #1 } \cs_new_protected:Npn \__peek_token_generic:NNT #1#2#3 { \__peek_token_generic:NNTF #1 #2 {#3} { } } \cs_new_protected:Npn \__peek_token_generic:NNF #1#2#3 { \__peek_token_generic:NNTF #1 #2 { } {#3} } \cs_new_protected:Npn \__peek_token_remove_generic:NNTF #1#2#3#4 { \cs_set_eq:NN \l__peek_search_token #2 \tl_set:Nn \l__peek_search_tl {#2} \cs_set_eq:NN \__peek_true:w \__peek_true_remove:w \cs_set_nopar:Npx \__peek_true_aux:w { \exp_not:n {#3} } \cs_set_nopar:Npx \__peek_false:w { \exp_not:N \group_align_safe_end: \exp_not:n {#4} } \group_align_safe_begin: \peek_after:Nw #1 } \cs_new_protected:Npn \__peek_token_remove_generic:NNT #1#2#3 { \__peek_token_remove_generic:NNTF #1 #2 {#3} { } } \cs_new_protected:Npn \__peek_token_remove_generic:NNF #1#2#3 { \__peek_token_remove_generic:NNTF #1 #2 { } {#3} } \cs_new_nopar:Npn \__peek_execute_branches_meaning: { \if_meaning:w \l_peek_token \l__peek_search_token \exp_after:wN \__peek_true:w \else: \exp_after:wN \__peek_false:w \fi: } \cs_new_nopar:Npn \__peek_execute_branches_catcode: { \if_catcode:w \__peek_execute_branches_catcode_aux: } \cs_new_nopar:Npn \__peek_execute_branches_charcode: { \if_charcode:w \__peek_execute_branches_catcode_aux: } \cs_new_nopar:Npn \__peek_execute_branches_catcode_aux: { \if_catcode:w \exp_not:N \l_peek_token \scan_stop: \exp_after:wN \exp_after:wN \exp_after:wN \__peek_execute_branches_catcode_auxii:N \exp_after:wN \exp_not:N \else: \exp_after:wN \__peek_execute_branches_catcode_auxiii: \fi: } \cs_new:Npn \__peek_execute_branches_catcode_auxii:N #1 { \exp_not:N #1 \exp_after:wN \exp_not:N \l__peek_search_tl \exp_after:wN \__peek_true:w \else: \exp_after:wN \__peek_false:w \fi: #1 } \cs_new_nopar:Npn \__peek_execute_branches_catcode_auxiii: { \exp_not:N \l_peek_token \exp_after:wN \exp_not:N \l__peek_search_tl \exp_after:wN \__peek_true:w \else: \exp_after:wN \__peek_false:w \fi: } \cs_new_protected_nopar:Npn \__peek_ignore_spaces_execute_branches: { \if_meaning:w \l_peek_token \c_space_token \exp_after:wN \peek_after:Nw \exp_after:wN \__peek_ignore_spaces_execute_branches: \tex_romannumeral:D -`0 \else: \exp_after:wN \__peek_execute_branches: \fi: } \group_begin: \cs_set:Npn \__peek_def:nnnn #1#2#3#4 { \__peek_def:nnnnn {#1} {#2} {#3} {#4} { TF } \__peek_def:nnnnn {#1} {#2} {#3} {#4} { T } \__peek_def:nnnnn {#1} {#2} {#3} {#4} { F } } \cs_set:Npn \__peek_def:nnnnn #1#2#3#4#5 { \cs_new_protected_nopar:cpx { #1 #5 } { \tl_if_empty:nF {#2} { \exp_not:n { \cs_set_eq:NN \__peek_execute_branches: #2 } } \exp_not:c { #3 #5 } \exp_not:n {#4} } } \__peek_def:nnnn { peek_catcode:N } { } { __peek_token_generic:NN } { \__peek_execute_branches_catcode: } \__peek_def:nnnn { peek_catcode_ignore_spaces:N } { \__peek_execute_branches_catcode: } { __peek_token_generic:NN } { \__peek_ignore_spaces_execute_branches: } \__peek_def:nnnn { peek_catcode_remove:N } { } { __peek_token_remove_generic:NN } { \__peek_execute_branches_catcode: } \__peek_def:nnnn { peek_catcode_remove_ignore_spaces:N } { \__peek_execute_branches_catcode: } { __peek_token_remove_generic:NN } { \__peek_ignore_spaces_execute_branches: } \__peek_def:nnnn { peek_charcode:N } { } { __peek_token_generic:NN } { \__peek_execute_branches_charcode: } \__peek_def:nnnn { peek_charcode_ignore_spaces:N } { \__peek_execute_branches_charcode: } { __peek_token_generic:NN } { \__peek_ignore_spaces_execute_branches: } \__peek_def:nnnn { peek_charcode_remove:N } { } { __peek_token_remove_generic:NN } { \__peek_execute_branches_charcode: } \__peek_def:nnnn { peek_charcode_remove_ignore_spaces:N } { \__peek_execute_branches_charcode: } { __peek_token_remove_generic:NN } { \__peek_ignore_spaces_execute_branches: } \__peek_def:nnnn { peek_meaning:N } { } { __peek_token_generic:NN } { \__peek_execute_branches_meaning: } \__peek_def:nnnn { peek_meaning_ignore_spaces:N } { \__peek_execute_branches_meaning: } { __peek_token_generic:NN } { \__peek_ignore_spaces_execute_branches: } \__peek_def:nnnn { peek_meaning_remove:N } { } { __peek_token_remove_generic:NN } { \__peek_execute_branches_meaning: } \__peek_def:nnnn { peek_meaning_remove_ignore_spaces:N } { \__peek_execute_branches_meaning: } { __peek_token_remove_generic:NN } { \__peek_ignore_spaces_execute_branches: } \group_end: \exp_args:Nno \use:nn { \cs_new:Npn \__peek_get_prefix_arg_replacement:wN #1 } { \tl_to_str:n { macro : } #2 -> #3 \q_stop #4 } { #4 {#1} {#2} {#3} } \cs_new:Npn \token_get_prefix_spec:N #1 { \token_if_macro:NTF #1 { \exp_after:wN \__peek_get_prefix_arg_replacement:wN \token_to_meaning:N #1 \q_stop \use_i:nnn } { \scan_stop: } } \cs_new:Npn \token_get_arg_spec:N #1 { \token_if_macro:NTF #1 { \exp_after:wN \__peek_get_prefix_arg_replacement:wN \token_to_meaning:N #1 \q_stop \use_ii:nnn } { \scan_stop: } } \cs_new:Npn \token_get_replacement_spec:N #1 { \token_if_macro:NTF #1 { \exp_after:wN \__peek_get_prefix_arg_replacement:wN \token_to_meaning:N #1 \q_stop \use_iii:nnn } { \scan_stop: } } %% %% %% End of file `l3token.sty'.