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+%%
+%% This is file `l3prg.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% l3prg.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: l3prg.dtx Copyright (C) 2005-2011 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 "expl3 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: l3prg.dtx 2495 2011-07-06 16:57:08Z bruno $
+ {L3 Experimental control structures}
+%%
+\ProvidesExplPackage
+ {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
+\package_check_loaded_expl:
+\cs_new_protected_nopar:Npn \bool_new:N #1 { \cs_new_eq:NN #1 \c_false_bool }
+\cs_generate_variant:Nn \bool_new:N { c }
+\cs_new_protected_nopar:Npn \bool_set_true:N #1
+ { \cs_set_eq:NN #1 \c_true_bool }
+\cs_new_protected_nopar:Npn \bool_set_false:N #1
+ { \cs_set_eq:NN #1 \c_false_bool }
+\cs_new_protected_nopar:Npn \bool_gset_true:N #1
+ { \cs_gset_eq:NN #1 \c_true_bool }
+\cs_new_protected_nopar:Npn \bool_gset_false:N #1
+ { \cs_gset_eq:NN #1 \c_false_bool }
+\cs_generate_variant:Nn \bool_set_true:N { c }
+\cs_generate_variant:Nn \bool_set_false:N { c }
+\cs_generate_variant:Nn \bool_gset_true:N { c }
+\cs_generate_variant:Nn \bool_gset_false:N { c }
+\cs_new_eq:NN \bool_set_eq:NN \cs_set_eq:NN
+\cs_new_eq:NN \bool_set_eq:Nc \cs_set_eq:Nc
+\cs_new_eq:NN \bool_set_eq:cN \cs_set_eq:cN
+\cs_new_eq:NN \bool_set_eq:cc \cs_set_eq:cc
+\cs_new_eq:NN \bool_gset_eq:NN \cs_gset_eq:NN
+\cs_new_eq:NN \bool_gset_eq:Nc \cs_gset_eq:Nc
+\cs_new_eq:NN \bool_gset_eq:cN \cs_gset_eq:cN
+\cs_new_eq:NN \bool_gset_eq:cc \cs_gset_eq:cc
+\cs_new:Npn \bool_set:Nn #1#2
+ { \tex_chardef:D #1 = \bool_if_p:n {#2} }
+\cs_new:Npn \bool_gset:Nn #1#2
+ { \tex_global:D \tex_chardef:D #1 = \bool_if_p:n {#2} }
+\cs_generate_variant:Nn \bool_set:Nn { c }
+\cs_generate_variant:Nn \bool_gset:Nn { c }
+\prg_new_conditional:Npnn \bool_if:N #1 { p , T , F , TF }
+ {
+ \if_bool:N #1
+ \prg_return_true:
+ \else:
+ \prg_return_false:
+ \fi:
+ }
+\cs_generate_variant:Nn \bool_if_p:N { c }
+\cs_generate_variant:Nn \bool_if:NT { c }
+\cs_generate_variant:Nn \bool_if:NF { c }
+\cs_generate_variant:Nn \bool_if:NTF { c }
+\bool_new:N \l_tmpa_bool
+\bool_new:N \g_tmpa_bool
+\prg_new_conditional:Npnn \bool_if:n #1 { T , F , TF }
+ {
+ \if_predicate:w \bool_if_p:n {#1}
+ \prg_return_true:
+ \else:
+ \prg_return_false:
+ \fi:
+ }
+\cs_new:Npn \bool_if_p:n #1
+ {
+ \group_align_safe_begin:
+ \bool_get_next:N ( #1 ) S
+ }
+\cs_new:Npn \bool_get_next:N #1
+ {
+ \use:c
+ {
+ bool_
+ \if_meaning:w !#1 ! \else: \if_meaning:w (#1 ( \else: p \fi: \fi:
+ :w
+ }
+ #1
+ }
+\cs_new:Npn \bool_get_not_next:N #1
+ {
+ \use:c
+ {
+ bool_not_
+ \if_meaning:w !#1 ! \else: \if_meaning:w (#1 ( \else: p \fi: \fi:
+ :w
+ }
+ #1
+ }
+\cs_new:Npn \bool_get_next:NN #1#2 { \bool_get_next:N #2 }
+\cs_new:Npn \bool_get_not_next:NN #1#2 { \bool_get_not_next:N #2 }
+\cs_new:cpn { bool_!:w } #1#2
+ {
+ \if_meaning:w ( #2
+ \exp_after:wN \bool_Not:w
+ \else:
+ \if_meaning:w ! #2
+ \exp_after:wN \exp_after:wN \exp_after:wN \bool_get_next:NN
+ \else:
+ \exp_after:wN \exp_after:wN \exp_after:wN \bool_Not:N
+ \fi:
+ \fi:
+ #2
+ }
+\cs_new:cpn { bool_not_!:w } #1#2
+ {
+ \if_meaning:w ( #2
+ \exp_after:wN \bool_not_Not:w
+ \else:
+ \if_meaning:w ! #2
+ \exp_after:wN \exp_after:wN \exp_after:wN \bool_get_not_next:NN
+ \else:
+ \exp_after:wN \exp_after:wN \exp_after:wN \bool_not_Not:N
+ \fi:
+ \fi:
+ #2
+ }
+\cs_new:Npn \bool_Not:w { \exp_after:wN \int_value:w \bool_get_not_next:N }
+\cs_new:Npn \bool_not_Not:w { \exp_after:wN \int_value:w \bool_get_next:N }
+\cs_new:Npn \bool_Not:N #1
+ {
+ \exp_after:wN \bool_p:w
+ \if_meaning:w #1 \c_true_bool
+ \c_false_bool
+ \else:
+ \c_true_bool
+ \fi:
+ }
+\cs_new:Npn \bool_not_Not:N #1
+ {
+ \exp_after:wN \bool_p:w
+ \if_meaning:w #1 \c_true_bool
+ \c_true_bool
+ \else:
+ \c_false_bool
+ \fi:
+ }
+\cs_new:cpn { bool_(:w } #1
+ { \exp_after:wN \bool_cleanup:N \int_value:w \bool_get_next:N }
+\cs_new:cpn { bool_not_(:w } #1
+ { \exp_after:wN \bool_not_cleanup:N \int_value:w \bool_get_next:N }
+\cs_new:cpn { bool_p:w } { \exp_after:wN \bool_cleanup:N \int_value:w }
+\cs_new:cpn { bool_not_p:w } {\exp_after:wN \bool_not_cleanup:N \int_value:w }
+\cs_new:Npn \bool_cleanup:N #1
+ {
+ \exp_after:wN \bool_choose:NN \exp_after:wN #1
+ \int_to_roman:w - `\q
+ }
+\cs_new:Npn \bool_not_cleanup:N #1
+ {
+ \exp_after:wN \bool_not_choose:NN \exp_after:wN #1
+ \int_to_roman:w - `\q
+ }
+\cs_new_nopar:Npn \bool_choose:NN #1#2 { \use:c { bool_ #2 _ #1 :w } }
+\cs_new_nopar:Npn \bool_not_choose:NN #1#2 { \use:c { bool_not_ #2 _ #1 :w } }
+\cs_new_nopar:cpn { bool_&_1:w } & { \bool_get_next:N }
+\cs_new_nopar:cpn { bool_|_0:w } | { \bool_get_next:N }
+\cs_new_nopar:cpn { bool_not_&_0:w } & { \bool_get_next:N }
+\cs_new_nopar:cpn { bool_not_|_1:w } | { \bool_get_next:N }
+\cs_new_nopar:cpn { bool_)_0:w } { \c_false_bool }
+\cs_new_nopar:cpn { bool_)_1:w } { \c_true_bool }
+\cs_new_nopar:cpn { bool_not_)_0:w } { \c_true_bool }
+\cs_new_nopar:cpn { bool_not_)_1:w } { \c_false_bool }
+\cs_new_nopar:cpn { bool_S_0:w } { \group_align_safe_end: \c_false_bool }
+\cs_new_nopar:cpn { bool_S_1:w } { \group_align_safe_end: \c_true_bool }
+\cs_new_nopar:cpn { bool_&_0:w } & { \bool_eval_skip_to_end:Nw \c_false_bool }
+\cs_new_nopar:cpn { bool_|_1:w } | { \bool_eval_skip_to_end:Nw \c_true_bool }
+\cs_new_nopar:cpn { bool_not_&_1:w } &
+ { \bool_eval_skip_to_end:Nw \c_false_bool }
+\cs_new_nopar:cpn { bool_not_|_0:w } |
+ { \bool_eval_skip_to_end:Nw \c_true_bool }
+%% (
+\cs_new:Npn \bool_eval_skip_to_end:Nw #1#2 )
+ {
+ \bool_eval_skip_to_end_aux:Nw #1#2 ( % )
+ \q_no_value \q_stop
+ {#2}
+ }
+\cs_new:Npn \bool_eval_skip_to_end_aux:Nw #1#2 ( #3#4 \q_stop #5 % )
+ {
+ \quark_if_no_value:NTF #3
+ {#1}
+ { \bool_eval_skip_to_end_aux_ii:Nw #1 #5 }
+ }
+\cs_new:Npn \bool_eval_skip_to_end_aux_ii:Nw #1#2 ( #3 )
+ { % (
+ \bool_eval_skip_to_end:Nw #1#3 )
+ }
+\cs_new:Npn \bool_not_p:n #1 { \bool_if_p:n { ! ( #1 ) } }
+\cs_new:Npn \bool_xor_p:nn #1#2
+ {
+ \int_compare:nNnTF { \bool_if_p:n {#1} } = { \bool_if_p:n {#2} }
+ \c_false_bool
+ \c_true_bool
+ }
+\cs_new:Npn \bool_while_do:Nn #1#2
+ { \bool_if:NT #1 { #2 \bool_while_do:Nn #1 {#2} } }
+\cs_new:Npn \bool_until_do:Nn #1#2
+ { \bool_if:NF #1 { #2 \bool_until_do:Nn #1 {#2} } }
+\cs_generate_variant:Nn \bool_while_do:Nn { c }
+\cs_generate_variant:Nn \bool_until_do:Nn { c }
+\cs_new:Npn \bool_do_while:Nn #1#2
+ { #2 \bool_if:NT #1 { \bool_do_while:Nn #1 {#2} } }
+\cs_new:Npn \bool_do_until:Nn #1#2
+ { #2 \bool_if:NF #1 { \bool_do_until:Nn #1 {#2} } }
+\cs_generate_variant:Nn \bool_do_while:Nn { c }
+\cs_generate_variant:Nn \bool_do_until:Nn { c }
+\cs_new:Npn \bool_while_do:nn #1#2
+ {
+ \bool_if:nT {#1}
+ {
+ #2
+ \bool_while_do:nn {#1} {#2}
+ }
+ }
+\cs_new:Npn \bool_do_while:nn #1#2
+ {
+ #2
+ \bool_if:nT {#1} { \bool_do_while:nn {#1} {#2} }
+ }
+\cs_new:Npn \bool_until_do:nn #1#2
+ {
+ \bool_if:nF {#1}
+ {
+ #2
+ \bool_until_do:nn {#1} {#2}
+ }
+ }
+\cs_new:Npn \bool_do_until:nn #1#2
+ {
+ #2
+ \bool_if:nF {#1} { \bool_do_until:nn {#1} {#2} }
+ }
+\cs_new_eq:NN \prg_case_end:nw \use_i_delimit_by_q_recursion_stop:nw
+\cs_new:Npn \prg_case_int:nnn #1
+ { \exp_args:Nf \prg_case_int_aux:nnn { \int_eval:n {#1} } }
+\cs_new:Npn \prg_case_int_aux:nnn #1 #2 #3
+ { \prg_case_int_aux:nw {#1} #2 {#1} {#3} \q_recursion_stop }
+\cs_new:Npn \prg_case_int_aux:nw #1#2#3
+ {
+ \int_compare:nNnTF {#1} = {#2}
+ { \prg_case_end:nw {#3} }
+ { \prg_case_int_aux:nw {#1} }
+ }
+\cs_new:Npn \prg_case_dim:nnn #1
+ { \exp_args:Nf \prg_case_dim_aux:nnn { \dim_eval:n {#1} } }
+\cs_new:Npn \prg_case_dim_aux:nnn #1 #2 #3
+ { \prg_case_dim_aux:nw {#1} #2 {#1} {#3} \q_recursion_stop }
+\cs_new:Npn \prg_case_dim_aux:nw #1#2#3
+ {
+ \dim_compare:nNnTF {#1} = {#2}
+ { \prg_case_end:nw {#3} }
+ { \prg_case_dim_aux:nw {#1} }
+ }
+\cs_new:Npn \prg_case_str:nnn #1#2#3
+ { \prg_case_str_aux:nw {#1} #2 {#1} {#3} \q_recursion_stop }
+\cs_new:Npn \prg_case_str_aux:nw #1#2#3
+ {
+ \str_if_eq:nnTF {#1} {#2}
+ { \prg_case_end:nw {#3} }
+ { \prg_case_str_aux:nw {#1} }
+ }
+\cs_generate_variant:Nn \prg_case_str:nnn { o }
+\cs_new:Npn \prg_case_str:xxn #1#2#3
+ { \prg_case_str_x_aux:nw {#1} #2 {#1} {#3} \q_recursion_stop }
+\cs_new:Npn \prg_case_str_x_aux:nw #1#2#3
+ {
+ \str_if_eq:xxTF {#1} {#2}
+ { \prg_case_end:nw {#3} }
+ { \prg_case_str_aux:nw {#1} }
+ }
+\cs_new:Npn \prg_case_tl:Nnn #1#2#3
+ { \prg_case_tl_aux:Nw #1 #2 #1 {#3} \q_recursion_stop }
+\cs_new:Npn \prg_case_tl_aux:Nw #1#2#3
+ {
+ \tl_if_eq:NNTF #1 #2
+ { \prg_case_end:nw {#3} }
+ { \prg_case_tl_aux:Nw #1 }
+ }
+\cs_generate_variant:Nn \prg_case_tl:Nnn { c }
+\cs_new_nopar:Npn \prg_replicate:nn #1
+ {
+ \int_to_roman:w
+ \exp_after:wN \prg_replicate_first_aux:N
+ \int_value:w \int_eval:w #1 \int_eval_end:
+ \cs_end:
+ }
+\cs_new_nopar:Npn \prg_replicate_aux:N #1
+ { \cs:w prg_replicate_#1 :n \prg_replicate_aux:N }
+\cs_new_nopar:Npn \prg_replicate_first_aux:N #1
+ { \cs:w prg_replicate_first_ #1 :n \prg_replicate_aux:N }
+\cs_new_nopar:Npn \prg_replicate_ :n #1 { \cs_end: }
+\cs_new:cpn { prg_replicate_0:n } #1 { \cs_end: {#1#1#1#1#1#1#1#1#1#1} }
+\cs_new:cpn { prg_replicate_1:n } #1 { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1 }
+\cs_new:cpn { prg_replicate_2:n } #1 { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1#1 }
+\cs_new:cpn { prg_replicate_3:n } #1
+ { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1#1#1 }
+\cs_new:cpn { prg_replicate_4:n } #1
+ { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1#1#1#1 }
+\cs_new:cpn { prg_replicate_5:n } #1
+ { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_6:n } #1
+ { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1#1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_7:n } #1
+ { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1#1#1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_8:n } #1
+ { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1#1#1#1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_9:n } #1
+ { \cs_end: {#1#1#1#1#1#1#1#1#1#1} #1#1#1#1#1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_first_-:n } #1 { \c_zero \negative_replication }
+\cs_new:cpn { prg_replicate_first_0:n } #1 { \c_zero }
+\cs_new:cpn { prg_replicate_first_1:n } #1 { \c_zero #1 }
+\cs_new:cpn { prg_replicate_first_2:n } #1 { \c_zero #1#1 }
+\cs_new:cpn { prg_replicate_first_3:n } #1 { \c_zero #1#1#1 }
+\cs_new:cpn { prg_replicate_first_4:n } #1 { \c_zero #1#1#1#1 }
+\cs_new:cpn { prg_replicate_first_5:n } #1 { \c_zero #1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_first_6:n } #1 { \c_zero #1#1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_first_7:n } #1 { \c_zero #1#1#1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_first_8:n } #1 { \c_zero #1#1#1#1#1#1#1#1 }
+\cs_new:cpn { prg_replicate_first_9:n } #1 { \c_zero #1#1#1#1#1#1#1#1#1 }
+\cs_new:Npn \prg_stepwise_function:nnnN #1#2
+ {
+ \int_compare:nNnTF {#2} > { 0 }
+ { \exp_args:Nf \prg_stepwise_function_incr:nnnN }
+ { \exp_args:Nf \prg_stepwise_function_decr:nnnN }
+ { \int_eval:n {#1} } {#2}
+ }
+\cs_new:Npn \prg_stepwise_function_incr:nnnN #1#2#3#4
+ {
+ \int_compare:nNnF {#1} > {#3}
+ {
+ #4 {#1}
+ \exp_args:Nf \prg_stepwise_function_incr:nnnN
+ { \int_eval:n { #1 + #2 } } {#2} {#3} #4
+ }
+ }
+\cs_new:Npn \prg_stepwise_function_decr:nnnN #1#2#3#4
+ {
+ \int_compare:nNnF {#1} < {#3}
+ {
+ #4 {#1}
+ \exp_args:Nf \prg_stepwise_function_decr:nnnN
+ { \int_eval:n { #1 + #2 } } {#2} {#3} #4
+ }
+ }
+\int_new:N \g_prg_stepwise_level_int
+\cs_new_protected:Npn \prg_stepwise_inline:nnnn #1#2#3#4
+ {
+ \int_gincr:N \g_prg_stepwise_level_int
+ \cs_gset_nopar:cpn
+ { g_prg_stepwise_ \int_use:N \g_prg_stepwise_level_int :n }
+ ##1 {#4}
+ \int_compare:nNnTF {#2} > { 0 }
+ { \exp_args:Ncf \prg_stepwise_inline_incr:Nnnn }
+ { \exp_args:Ncf \prg_stepwise_inline_decr:Nnnn }
+ { g_prg_stepwise_ \int_use:N \g_prg_stepwise_level_int :n }
+ { \int_eval:n {#1} } {#2} {#3}
+ \int_gdecr:N \g_prg_stepwise_level_int
+ }
+\cs_new_protected:Npn \prg_stepwise_inline_incr:Nnnn #1#2#3#4
+ {
+ \int_compare:nNnF {#2} > {#4}
+ {
+ #1 {#2}
+ \exp_args:NNf \prg_stepwise_inline_incr:Nnnn #1
+ { \int_eval:n { #2 + #3 } } {#3} {#4}
+ }
+ }
+\cs_new_protected:Npn \prg_stepwise_inline_decr:Nnnn #1#2#3#4
+ {
+ \int_compare:nNnF {#2} < {#4}
+ {
+ #1 {#2}
+ \exp_args:NNf \prg_stepwise_inline_decr:Nnnn #1
+ { \int_eval:n { #2 + #3 } } {#3} {#4}
+ }
+ }
+\cs_new_protected:Npn \prg_stepwise_variable:nnnNn #1#2#3#4#5
+ {
+ \prg_stepwise_inline:nnnn {#1} {#2} {#3}
+ {
+ \tl_set:Nn #4 {##1}
+ #5
+ }
+ }
+\prg_new_conditional:Npnn \mode_if_vertical: { p , T , F , TF }
+ { \if_mode_vertical: \prg_return_true: \else: \prg_return_false: \fi: }
+\prg_new_conditional:Npnn \mode_if_horizontal: { p , T , F , TF }
+ { \if_mode_horizontal: \prg_return_true: \else: \prg_return_false: \fi: }
+\prg_new_conditional:Npnn \mode_if_inner: { p , T , F , TF }
+ { \if_mode_inner: \prg_return_true: \else: \prg_return_false: \fi: }
+\prg_new_conditional:Npnn \mode_if_math: { p , T , F , TF }
+ {
+ \scan_align_safe_stop:
+ \if_mode_math: \prg_return_true: \else: \prg_return_false: \fi:
+ }
+\cs_new_nopar:Npn \group_align_safe_begin:
+ { \if_false: { \fi: \if_int_compare:w `} = \c_zero \fi: }
+\cs_new_nopar:Npn \group_align_safe_end:
+ { \if_int_compare:w `{ = \c_zero } \fi: }
+\cs_new_nopar:Npn \scan_align_safe_stop:
+ {
+ \int_compare:nNnT \etex_currentgrouptype:D = \c_six
+ {
+ \int_compare:nNnF \etex_lastnodetype:D = \c_zero
+ { \int_compare:nNnF \etex_lastnodetype:D = \c_seven { \scan_stop: } }
+ }
+ }
+\group_begin:
+ \tex_lccode:D `\& = `\g \scan_stop:
+ \tex_catcode:D `\& = \c_twelve
+\tl_to_lowercase:n
+ {
+ \group_end:
+ \cs_new_nopar:Npn \prg_variable_get_scope:N #1
+ {
+ \exp_last_unbraced:Nf \prg_variable_get_scope_aux:w
+ { \cs_to_str:N #1 \exp_stop_f: \q_stop }
+ }
+ \cs_new_nopar:Npn \prg_variable_get_scope_aux:w #1#2 \q_stop
+ { \token_if_eq_meaning:NNT & #1 { g } }
+ }
+\group_begin:
+ \tex_lccode:D `\& = `\_ \scan_stop:
+ \tex_catcode:D `\& = \c_twelve
+\tl_to_lowercase:n
+ {
+ \group_end:
+ \cs_new_nopar:Npn \prg_variable_get_type:N #1
+ {
+ \exp_after:wN \prg_variable_get_type_aux:w
+ \token_to_str:N #1 & a \q_stop
+ }
+ \cs_new_nopar:Npn \prg_variable_get_type_aux:w #1 & #2#3 \q_stop
+ {
+ \token_if_eq_meaning:NNTF a #2
+ {#1}
+ { \prg_variable_get_type_aux:w #2#3 \q_stop }
+ }
+ }
+\cs_new_protected_nopar:Npn \prg_define_quicksort:nnn #1#2#3 {
+ \cs_set:cpx{#1_quicksort:n}##1{
+ \exp_not:c{#1_quicksort_start_partition:w} ##1
+ \exp_not:n{#2\q_nil#3\q_stop}
+ }
+ \cs_set:cpx{#1_quicksort_braced:n}##1{
+ \exp_not:c{#1_quicksort_start_partition_braced:n} ##1
+ \exp_not:N\q_nil\exp_not:N\q_stop
+ }
+ \cs_set:cpx {#1_quicksort_start_partition:w} #2 ##1 #3{
+ \exp_not:N \quark_if_nil:nT {##1}\exp_not:N \use_none_delimit_by_q_stop:w
+ \exp_not:c{#1_quicksort_do_partition_i:nnnw} {##1}{}{}
+ }
+ \cs_set:cpx {#1_quicksort_start_partition_braced:n} ##1 {
+ \exp_not:N \quark_if_nil:nT {##1}\exp_not:N \use_none_delimit_by_q_stop:w
+ \exp_not:c{#1_quicksort_do_partition_i_braced:nnnn} {##1}{}{}
+ }
+ \cs_set:cpx {#1_quicksort_do_partition_i:nnnw} ##1##2##3 #2 ##4 #3 {
+ \exp_not:N \quark_if_nil:nTF {##4} \exp_not:c {#1_do_quicksort_braced:nnnnw}
+ {
+ \exp_not:c{#1_quicksort_compare:nnTF}{##1}{##4}
+ \exp_not:c{#1_quicksort_partition_greater_ii:nnnn}
+ \exp_not:c{#1_quicksort_partition_less_ii:nnnn}
+ }
+ {##1}{##2}{##3}{##4}
+ }
+ \cs_set:cpx {#1_quicksort_do_partition_i_braced:nnnn} ##1##2##3##4 {
+ \exp_not:N \quark_if_nil:nTF {##4} \exp_not:c {#1_do_quicksort_braced:nnnnw}
+ {
+ \exp_not:c{#1_quicksort_compare:nnTF}{##1}{##4}
+ \exp_not:c{#1_quicksort_partition_greater_ii_braced:nnnn}
+ \exp_not:c{#1_quicksort_partition_less_ii_braced:nnnn}
+ }
+ {##1}{##2}{##3}{##4}
+ }
+ \cs_set:cpx {#1_quicksort_do_partition_ii:nnnw} ##1##2##3 #2 ##4 #3 {
+ \exp_not:N \quark_if_nil:nTF {##4} \exp_not:c {#1_do_quicksort_braced:nnnnw}
+ {
+ \exp_not:c{#1_quicksort_compare:nnTF}{##4}{##1}
+ \exp_not:c{#1_quicksort_partition_less_i:nnnn}
+ \exp_not:c{#1_quicksort_partition_greater_i:nnnn}
+ }
+ {##1}{##2}{##3}{##4}
+ }
+ \cs_set:cpx {#1_quicksort_do_partition_ii_braced:nnnn} ##1##2##3##4 {
+ \exp_not:N \quark_if_nil:nTF {##4} \exp_not:c {#1_do_quicksort_braced:nnnnw}
+ {
+ \exp_not:c{#1_quicksort_compare:nnTF}{##4}{##1}
+ \exp_not:c{#1_quicksort_partition_less_i_braced:nnnn}
+ \exp_not:c{#1_quicksort_partition_greater_i_braced:nnnn}
+ }
+ {##1}{##2}{##3}{##4}
+ }
+ \cs_set:cpx {#1_quicksort_partition_less_i:nnnn} ##1##2##3##4{
+ \exp_not:c{#1_quicksort_do_partition_i:nnnw}{##1}{##2}{{##4}##3}}
+ \cs_set:cpx {#1_quicksort_partition_less_ii:nnnn} ##1##2##3##4{
+ \exp_not:c{#1_quicksort_do_partition_ii:nnnw}{##1}{##2}{##3{##4}}}
+ \cs_set:cpx {#1_quicksort_partition_greater_i:nnnn} ##1##2##3##4{
+ \exp_not:c{#1_quicksort_do_partition_i:nnnw}{##1}{{##4}##2}{##3}}
+ \cs_set:cpx {#1_quicksort_partition_greater_ii:nnnn} ##1##2##3##4{
+ \exp_not:c{#1_quicksort_do_partition_ii:nnnw}{##1}{##2{##4}}{##3}}
+ \cs_set:cpx {#1_quicksort_partition_less_i_braced:nnnn} ##1##2##3##4{
+ \exp_not:c{#1_quicksort_do_partition_i_braced:nnnn}{##1}{##2}{{##4}##3}}
+ \cs_set:cpx {#1_quicksort_partition_less_ii_braced:nnnn} ##1##2##3##4{
+ \exp_not:c{#1_quicksort_do_partition_ii_braced:nnnn}{##1}{##2}{##3{##4}}}
+ \cs_set:cpx {#1_quicksort_partition_greater_i_braced:nnnn} ##1##2##3##4{
+ \exp_not:c{#1_quicksort_do_partition_i_braced:nnnn}{##1}{{##4}##2}{##3}}
+ \cs_set:cpx {#1_quicksort_partition_greater_ii_braced:nnnn} ##1##2##3##4{
+ \exp_not:c{#1_quicksort_do_partition_ii_braced:nnnn}{##1}{##2{##4}}{##3}}
+ \cs_set:cpx {#1_do_quicksort_braced:nnnnw} ##1##2##3##4\q_stop {
+ \exp_not:c{#1_quicksort_braced:n}{##2}
+ \exp_not:c{#1_quicksort_function:n}{##1}
+ \exp_not:c{#1_quicksort_braced:n}{##3}
+ }
+}
+\prg_define_quicksort:nnn {prg}{}{}
+\cs_set:Npn \prg_quicksort_function:n {\ERROR}
+\cs_set:Npn \prg_quicksort_compare:nnTF {\ERROR}
+\cs_new_protected:Npn \prg_new_map_functions:Nn #1#2 { \deprectiated }
+\cs_new_protected:Npn \prg_set_map_functions:Nn #1#2 { \deprectiated }
+%%
+%%
+%% End of file `l3prg.sty'.