%%
%% This is file `l3str-string.def',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% l3str.dtx  (with options: `string')
%% 
%% 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: l3str.dtx Copyright (C) 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 "l3experimental 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.
%%
%% -----------------------------------------------------------------------
\group_begin:
  \char_set_lccode:nn {`\*} {`\\}
  \char_set_catcode_other:N \^^J
  \char_set_catcode_other:N \^^M
  \tl_to_lowercase:n
    {
      \cs_new_protected_nopar:Npn \str_convert_input_string:
        {
          \group_begin:
            \int_set:Nn \tex_escapechar:D { 92 }
            \tl_gset:Nx \g_str_result_tl
              {
                \exp_after:wN \str_convert_input_string_aux:wN
                  \g_str_result_tl \prg_map_break: ^^M ?
                \prg_break_point:n { }
              }
            \tl_gset:Nx \g_str_result_tl
              {
                \exp_after:wN \str_convert_input_string_aux:wNNN
                  \g_str_result_tl * ?? { ? \prg_map_break: }
                \prg_break_point:n { }
              }
          \group_end:
        }
      \cs_new_nopar:Npn \str_convert_input_string_aux:wNNN #1 *#2#3#4
    }
        {
          \str_filter_bytes:n {#1}
          \use_none:n #4
          \str_output_byte:w '
            \str_aux_octal_use:NTF #2
              {
                \str_aux_octal_use:NTF #3
                  {
                    \str_aux_octal_use:NTF #4
                      {
                        \if_int_compare:w #2 > \c_three
                          - 256
                        \fi:
                        \str_convert_input_string_aux:NNNNNN
                      }
                      { \str_convert_input_string_aux:NNNNNN ? }
                  }
                  { \str_convert_input_string_aux:NNNNNN ?? }
              }
              {
                \prg_case_str:xxn {#2}
                  {
                    { \c_backslash_str } { 134 }
                    { ( } { 50 }
                    { ) } { 51 }
                    { r } { 15 }
                    { f } { 14 }
                    { n } { 12 }
                    { t } { 11 }
                    { b } { 10 }
                    { ^^J } { 0 - \c_one }
                  }
                  { 0 - \c_one \use_i:nn }
              }
          \str_output_end:
          \use_i:nn \str_convert_input_string_aux:wNNN #2#3#4
        }
  \cs_new_nopar:Npn \str_convert_input_string_aux:NNNNNN #1#2#3#4#5#6
    { \str_output_end: \str_convert_input_string_aux:wNNN }
  \cs_new_nopar:Npn \str_convert_input_string_aux:wN #1 ^^M #2
    {
      #1 ^^J
      \if_charcode:w ^^J #2
        \exp_after:wN \use_i:nn
      \fi:
      \str_convert_input_string_aux:wN #2
    }
\group_end:
\str_const:Nx \c_str_convert_output_string_str
  { \c_backslash_str ( ) }
\cs_new_protected_nopar:Npn \str_convert_output_string:
  { \str_aux_gmap_result:N \str_convert_output_string_aux:N }
\cs_new_nopar:Npn \str_convert_output_string_aux:N #1
  {
    \str_convert_output_string_aux:NTF #1
      {
        \str_if_contains_char:NNT
          \c_str_convert_output_string_str #1
          { \c_backslash_str }
        #1
      }
      {
        \c_backslash_str
        \int_div_truncate:nn {`#1} {64}
        \int_mod:nn { \int_div_truncate:nn {`#1} \c_eight } \c_eight
        \int_mod:nn {`#1} \c_eight
      }
  }
\prg_new_conditional:Npnn \str_convert_output_string_aux:N #1 { TF }
  {
    \if_num:w `#1 < "21 \exp_stop_f:
      \prg_return_false:
    \else:
      \if_num:w `#1 > "7E \exp_stop_f:
        \prg_return_false:
      \else:
        \prg_return_true:
      \fi:
    \fi:
  }
%% 
%%
%% End of file `l3str-string.def'.
