l3 (19jun15)

git-svn-id: svn://tug.org/texlive/trunk@37621 c570f23f-e606-0410-a88d-b1316a301751

13 files changed, 185 insertions, 144 deletions

diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3sort/l3sort.sty b/Master/texmf-dist/tex/latex/l3experimental/l3sort/l3sort.sty
index 626fb98a3c0..62f05087b94 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3sort/l3sort.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3sort/l3sort.sty
@@ -13,7 +13,7 @@
 %% 
 %% Do not distribute a modified version of this file.
 %% 
-%% File l3sort.dtx (C) Copyright 2012,2014 The LaTeX3 Project
+%% File l3sort.dtx (C) Copyright 2012,2014,2015 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
@@ -46,8 +46,8 @@
 %%
 %% -----------------------------------------------------------------------
 %%
-\RequirePackage{expl3}[2014/11/25]
-\@ifpackagelater{expl3}{2014/11/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{l3sort}{Support package l3kernel too old}
@@ -59,7 +59,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: l3sort.dtx 5471 2014-11-25 20:11:29Z joseph $
+\GetIdInfo$Id: l3sort.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental sorting functions}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3flag.sty b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3flag.sty
index 45260c09f87..3dad3c21bfe 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3flag.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3flag.sty
@@ -13,7 +13,7 @@
 %% 
 %% Do not distribute a modified version of this file.
 %% 
-%% File: l3flag.dtx Copyright (C) 2011-2012,2104 The LaTeX3 Project
+%% File: l3flag.dtx Copyright (C) 2011-2012,2014,2015 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
@@ -45,8 +45,8 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\RequirePackage{expl3}[2014/11/25]
-\@ifpackagelater{expl3}{2014/11/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{l3flag}{Support package l3kernel too old}
@@ -58,7 +58,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: l3flag.dtx 5471 2014-11-25 20:11:29Z joseph $
+\GetIdInfo$Id: l3flag.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental flags}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3regex-trace.sty b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3regex-trace.sty
index becb142c763..6d6be77a1cc 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3regex-trace.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3regex-trace.sty
@@ -13,7 +13,7 @@
 %% 
 %% Do not distribute a modified version of this file.
 %% 
-%% File: l3regex.dtx Copyright (C) 2011-2014 The LaTeX3 Project
+%% File: l3regex.dtx Copyright (C) 2011-2015 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
@@ -45,8 +45,8 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\RequirePackage{expl3}[2014/11/25]
-\@ifpackagelater{expl3}{2014/11/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{l3regex}{Support package l3kernel too old}
@@ -58,7 +58,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: l3regex.dtx 5471 2014-11-25 20:11:29Z joseph $
+\GetIdInfo$Id: l3regex.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental regular expressions}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3regex.sty b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3regex.sty
index b2839ed61f1..4b322b68ba1 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3regex.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3regex.sty
@@ -13,7 +13,7 @@
 %% 
 %% Do not distribute a modified version of this file.
 %% 
-%% File: l3regex.dtx Copyright (C) 2011-2014 The LaTeX3 Project
+%% File: l3regex.dtx Copyright (C) 2011-2015 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
@@ -45,8 +45,8 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\RequirePackage{expl3}[2014/11/25]
-\@ifpackagelater{expl3}{2014/11/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{l3regex}{Support package l3kernel too old}
@@ -58,7 +58,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: l3regex.dtx 5471 2014-11-25 20:11:29Z joseph $
+\GetIdInfo$Id: l3regex.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental regular expressions}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3str.sty b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3str.sty
index cb419358e4d..35b91ae711e 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3str.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3str.sty
@@ -13,7 +13,7 @@
 %% 
 %% Do not distribute a modified version of this file.
 %% 
-%% File: l3str.dtx Copyright (C) 2011-2014 The LaTeX3 Project
+%% File: l3str.dtx Copyright (C) 2011-2015 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
@@ -45,8 +45,8 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\RequirePackage{expl3}[2014/11/25]
-\@ifpackagelater{expl3}{2014/11/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{l3str}{Support package l3kernel too old}
@@ -58,7 +58,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: l3str-expl.dtx 5471 2014-11-25 20:11:29Z joseph $
+\GetIdInfo$Id: l3str-expl.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental strings}
 \def\ExplFileName{l3str}
 \ProvidesExplPackage
diff --git a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3tl-build.sty b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3tl-build.sty
index c2f1b05c180..244d6164930 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/l3str/l3tl-build.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/l3str/l3tl-build.sty
@@ -13,7 +13,7 @@
 %% 
 %% Do not distribute a modified version of this file.
 %% 
-%% File: l3tl-build.dtx Copyright (C) 2011-2012 The LaTeX3 Project
+%% File: l3tl-build.dtx Copyright (C) 2011-2015 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
@@ -45,8 +45,8 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\RequirePackage{expl3}[2014/08/25]
-\@ifpackagelater{expl3}{2014/08/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{l3tl-build}{Support package l3kernel too old}
@@ -58,7 +58,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: l3tl-build.dtx 5378 2014-08-25 10:59:48Z joseph $
+\GetIdInfo$Id: l3tl-build.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental token list construction}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/l3experimental/xgalley/l3galley.sty b/Master/texmf-dist/tex/latex/l3experimental/xgalley/l3galley.sty
index b18798c22a8..3d4b1b1582b 100644
--- a/Master/texmf-dist/tex/latex/l3experimental/xgalley/l3galley.sty
+++ b/Master/texmf-dist/tex/latex/l3experimental/xgalley/l3galley.sty
@@ -47,8 +47,8 @@
 %%
 %% -----------------------------------------------------------------------
 %%
-\RequirePackage{expl3}[2014/09/15]
-\@ifpackagelater{expl3}{2014/09/15}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{l3galley}{Support package l3kernel too old}
@@ -60,7 +60,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: l3galley.dtx 5624 2015-05-31 19:22:46Z joseph $
+\GetIdInfo$Id: l3galley.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental galley code}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
@@ -290,6 +290,7 @@
             \seq_gpop_left:NN \g__galley_cutout_left_seq  \l__galley_tmp_tl
             \seq_gpop_left:NN \g__galley_cutout_right_seq \l__galley_tmp_tl
           }
+        \__galley_parshape_set:
       }
   }
 \cs_new_protected:Npn \galley_par:n #1
diff --git a/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex b/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
index dffedf539df..ba0cfff670a 100644
--- a/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
+++ b/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
@@ -80,8 +80,8 @@
 %% -----------------------------------------------------------------------
 \def\ExplFileName{expl3}
 \def\ExplFileDescription{L3 programming layer}
-\def\ExplFileDate{2015/03/01}
-\def\ExplFileVersion{5547}
+\def\ExplFileDate{2015/06/15}
+\def\ExplFileVersion{5630}
 \begingroup
   \def\next{\endgroup}
   \expandafter\ifx\csname PackageError\endcsname\relax
@@ -240,7 +240,7 @@
         }
     }
 \endgroup
-\GetIdInfo$Id: l3bootstrap.dtx 5542 2015-02-28 22:47:53Z joseph $
+\GetIdInfo$Id: l3bootstrap.dtx 5608 2015-05-20 15:29:10Z joseph $
   {L3 Bootstrap code}
 \begingroup\expandafter\expandafter\expandafter\endgroup
   \expandafter\ifx\csname pdfstrcmp\endcsname\relax
@@ -284,7 +284,7 @@
   \fi
 \endgroup
 \begingroup
-  \def\next{\endgroup}
+  \def\next{\endgroup}%
   \def\ShortText{Required primitives not found}%
   \def\LongText%
     {%
@@ -297,29 +297,30 @@
       or later.\LineBreak
       \LineBreak
     }%
-  \expandafter\ifx\csname pdfstrcmp\endcsname\relax
+  \ifnum0%
+    \expandafter\ifx\csname pdfstrcmp\endcsname\relax\else 1\fi
     \expandafter\ifx\csname directlua\endcsname\relax
     \else
-      \ifnum\luatexversion<36 %
-        \newlinechar`\^^J\relax
-        \def\LineBreak{\noexpand\MessageBreak}%
-        \expandafter\ifx\csname PackageError\endcsname\relax
-          \def\LineBreak{^^J}%
-          \def\PackageError#1#2#3%
-            {%
-              \errhelp{#3}%
-              \errmessage{#1 Error: #2!}
-            }%
-        \fi
-        \edef\next
+      \ifnum\luatexversion<36 \else 1\fi
+    \fi
+    =0 %
+      \newlinechar`\^^J %
+      \def\LineBreak{\noexpand\MessageBreak}%
+      \expandafter\ifx\csname PackageError\endcsname\relax
+        \def\LineBreak{^^J}%
+        \def\PackageError#1#2#3%
           {%
-            \noexpand\PackageError{expl3}{\ShortText}
-              {\LongText Loading of expl3 will abort!}%
-            \endgroup
-            \noexpand\endinput
+            \errhelp{#3}%
+            \errmessage{#1 Error: #2}
           }%
       \fi
-    \fi
+      \edef\next
+        {%
+          \noexpand\PackageError{expl3}{\ShortText}
+            {\LongText Loading of expl3 will abort!}%
+          \endgroup
+          \noexpand\endinput
+        }%
   \fi
 \next
 \begingroup
@@ -4770,7 +4771,7 @@
   { \__quark_if_recursion_tail_break:NN #1 \prg_break: }
 \cs_new:Npn \quark_if_recursion_tail_break:n #1
   { \__quark_if_recursion_tail_break:nN {#1} \prg_break: }
-%% File: l3prg.dtx Copyright (C) 2005-2014 The LaTeX3 Project
+%% File: l3prg.dtx Copyright (C) 2005-2015 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
@@ -4802,7 +4803,7 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\GetIdInfo$Id: l3prg.dtx 5354 2014-08-23 01:35:39Z bruno $
+\GetIdInfo$Id: l3prg.dtx 5566 2015-04-13 08:24:56Z joseph $
   {L3 Control structures}
 %%
 \tex_let:D \if_bool:N          \tex_ifodd:D
@@ -7508,7 +7509,7 @@
     \\ > \ \ \tl_to_str:n {#1}
     \ \ => \ \ \tl_to_str:n {#2}
   }
-%% File: l3file.dtx Copyright (C) 1990-2014 The LaTeX3 Project
+%% File: l3file.dtx Copyright (C) 1990-2015 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
@@ -7540,7 +7541,7 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\GetIdInfo$Id: l3file.dtx 5369 2014-08-24 22:41:47Z bruno $
+\GetIdInfo$Id: l3file.dtx 5627 2015-06-07 09:26:26Z bruno $
   {L3 File and I/O operations}
 \tl_new:N \g_file_current_name_tl
 \tl_gset_eq:NN \g_file_current_name_tl \@currname
@@ -7712,7 +7713,10 @@
   {
     \cs_if_exist:NTF \normalend
       { \tex_count:D 38 \scan_stop: }
-      { \tex_count:D 16 \scan_stop: - \c_one }
+      {
+        \tex_count:D 16 \scan_stop:
+          \cs_if_exist:NT \loccount { - \c_one }
+      }
   }
   {
     \prop_gput:Nnn \g__ior_streams_prop {#1} { Reserved~by~format }
@@ -7824,7 +7828,10 @@
   {
     \cs_if_exist:NTF \normalend
       { \tex_count:D 39 \scan_stop: }
-      { \tex_count:D 17 \scan_stop: - \c_one }
+      {
+        \tex_count:D 17 \scan_stop:
+          \cs_if_exist:NT \loccount { - \c_one }
+      }
   }
   {
     \prop_gput:Nnn \g__iow_streams_prop {#1} { Reserved~by~format }
@@ -7931,13 +7938,18 @@
         \c_catcode_other_space_tl
       }
   }
-\cs_new_protected:Npn \iow_indent:n #1 { }
 \cs_new:Npx \__iow_indent:n #1
   {
     \c__iow_wrap_indent_marker_tl
     #1
     \c__iow_wrap_unindent_marker_tl
   }
+\cs_new:Npn \__iow_indent_error:n #1
+  {
+    \__msg_kernel_expandable_error:nn { kernel } { indent-outside-wrapping-code }
+    #1
+  }
+\cs_new_protected_nopar:Npn \iow_indent:n { \__iow_indent_error:n }
 \cs_new_protected:Npn \iow_wrap:nnnN #1#2#3#4
   {
     \group_begin:
@@ -7953,6 +7965,7 @@
       \cs_set_eq:NN \iow_indent:n \__iow_indent:n
       #3
       \__iow_wrap_set:Nx \l__iow_wrap_tl {#1}
+      \cs_set_eq:NN \iow_indent:n \__iow_indent_error:n
       \tl_set:Nx \l__iow_newline_tl { \iow_newline: #2 }
       \tl_set:Nx \l__iow_newline_tl { \tl_to_str:N \l__iow_newline_tl }
       \tl_replace_all:Nnn \l__iow_newline_tl { ~ } { \c_space_tl }
@@ -7961,12 +7974,13 @@
       \int_zero:N \l__iow_current_indentation_int
       \tl_clear:N \l__iow_current_indentation_tl
       \int_zero:N \l__iow_current_line_int
-      \tl_clear:N \l__iow_current_line_tl
+      \tl_set:Nn \l__iow_current_line_tl { \use_none:n }
       \bool_set_true:N \l__iow_line_start_bool
       \use:x
         {
           \exp_not:n { \tl_clear:N \l__iow_wrap_tl }
           \__iow_wrap_loop:w
+          \tl_to_str:N \c__iow_wrap_newline_marker_tl
           \tl_to_str:N \l__iow_wrap_tl
           \tl_to_str:N \c__iow_wrap_end_marker_tl
           \c_space_tl \c_space_tl
@@ -8098,6 +8112,8 @@
   {
     File~names~must~contain~balanced~numbers~of~quotes~(").
   }
+\__msg_kernel_new:nnn { kernel } { indent-outside-wrapping-code }
+  { Only~\iow_wrap:nnnN~(arg~1)~allows~\iow_indent:n }
 %% File: l3skip.dtx Copyright (C) 2004-2011 Frank Mittelbach, The LaTeX3 Project
 %%                            (C) 2012-2014 The LaTeX3 Project
 %%
@@ -8131,7 +8147,7 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\GetIdInfo$Id: l3skip.dtx 5354 2014-08-23 01:35:39Z bruno $
+\GetIdInfo$Id: l3skip.dtx 5607 2015-05-18 12:25:06Z joseph $
   {L3 Dimensions and skips}
 \cs_new_eq:NN \if_dim:w      \tex_ifdim:D
 \cs_new_eq:NN \__dim_eval:w      \etex_dimexpr:D
@@ -8365,6 +8381,8 @@
       }
 \cs_new:Npn \dim_to_decimal_in_bp:n #1
   { \dim_to_decimal:n { ( #1 ) * 800 / 803 } }
+\cs_new:Npn \dim_to_decimal_in_sp:n #1
+  { \int_eval:n { \__dim_eval:w #1 \__dim_eval_end: } }
 \cs_new:Npn \dim_to_decimal_in_unit:nn #1#2
   {
     \dim_to_decimal:n
@@ -8570,7 +8588,7 @@
 %%   prior consultation with the LaTeX3 Project.
 %%
 %% -----------------------------------------------------------------------
-\GetIdInfo$Id: l3keys.dtx 5500 2015-01-27 14:37:04Z joseph $
+\GetIdInfo$Id: l3keys.dtx 5629 2015-06-14 08:38:04Z joseph $
   {L3 Key-value interfaces}
 \int_new:N \g__keyval_level_int
 \tl_new:N \l__keyval_key_tl
@@ -8839,7 +8857,7 @@
     \clist_map_inline:nn {#2}
       {
         \int_incr:N \l_keys_choice_int
-        \__keys_cmd_set:nx { \l_keys_path_tl / ##1 }
+        \__keys_cmd_set:nx { \l_keys_path_tl / \tl_to_str:n {##1} }
           {
             \tl_set:Nn \exp_not:N \l_keys_choice_tl {##1}
             \int_set:Nn \exp_not:N \l_keys_choice_int
@@ -9234,14 +9252,14 @@
   { \clist_map_function:nN {#1} \__keys_choice_find:n }
 \prg_new_conditional:Npnn \keys_if_exist:nn #1#2 { p , T , F , TF }
   {
-    \cs_if_exist:cTF { \c__keys_code_root_tl #1 / #2 }
+    \cs_if_exist:cTF { \c__keys_code_root_tl \tl_to_str:n { #1 / #2 } }
       { \prg_return_true: }
       { \prg_return_false: }
   }
 \prg_new_conditional:Npnn \keys_if_choice_exist:nnn #1#2#3
   { p , T , F , TF }
   {
-    \cs_if_exist:cTF { \c__keys_code_root_tl #1 / #2 / #3 }
+    \cs_if_exist:cTF { \c__keys_code_root_tl \tl_to_str:n { #1 / #2 / #3 } }
       { \prg_return_true: }
       { \prg_return_false: }
   }
@@ -15999,7 +16017,7 @@
 %%
 %% -----------------------------------------------------------------------
 %%
-\GetIdInfo$Id: l3candidates.dtx 5544 2015-03-01 18:30:00Z joseph $
+\GetIdInfo$Id: l3candidates.dtx 5613 2015-05-21 11:59:04Z joseph $
   {L3 Experimental additions to l3kernel}
 \group_begin:
   \tex_lccode:D `? = `: \scan_stop:
@@ -17292,21 +17310,29 @@
     \__tl_change_case_output:nwn { #1 {#3} }
     #2
   }
-\cs_new:Npn \__tl_change_case_cs_expand:Nnw #1#2
+\cs_new:Npn \__tl_change_case_if_expandable:NTF #1
   {
-    \bool_if:nTF
+    \token_if_expandable:NTF #1
       {
-             \token_if_expandable_p:N           #1
-        && ! \token_if_protected_macro_p:N      #1
-        && ! \token_if_protected_long_macro_p:N #1
+        \bool_if:nTF
+          {
+               \token_if_protected_macro_p:N      #1
+            || \token_if_protected_long_macro_p:N #1
+            || \token_if_eq_meaning_p:NN \q_recursion_tail #1
+          }
+          { \use_ii:nn }
+          { \use_i:nn }
       }
+      { \use_ii:nn }
+  }
+\cs_new:Npn \__tl_change_case_cs_expand:Nnw #1#2
+  {
+    \__tl_change_case_if_expandable:NTF #1
       { \__tl_change_case_cs_expand:NN #1 }
       { #2 }
   }
 \cs_new:Npn \__tl_change_case_cs_expand:NN #1#2
   { \exp_after:wN #2 #1 }
-\cs_new:Npn \__tl_change_case_cs_expand:NNnw #1#2#3
-  { \__tl_change_case_cs_expand:Nnw #2 {#3} #1 }
 \cs_new:Npn \__tl_change_case_lower_sigma:Nnw #1#2#3#4 \q_recursion_stop
   {
     \int_compare:nNnTF { `#1 } = { "03A3 }
@@ -17319,27 +17345,22 @@
   }
 \cs_new:Npn \__tl_change_case_lower_sigma:w #1 \q_recursion_stop
   {
-      \tl_if_head_is_N_type:nTF {#1}
-        { \__tl_change_case_lower_sigma:Nw #1 \q_recursion_stop }
-        { \c__unicode_final_sigma_tl }
+    \tl_if_head_is_N_type:nTF {#1}
+      { \__tl_change_case_lower_sigma:Nw #1 \q_recursion_stop }
+      { \c__unicode_final_sigma_tl }
   }
 \cs_new:Npn \__tl_change_case_lower_sigma:Nw #1#2 \q_recursion_stop
   {
-    \token_if_cs:NTF #1
-      { \c__unicode_final_sigma_tl }
+    \__tl_change_case_if_expandable:NTF #1
       {
-        \exp_after:wN \__tl_change_case_lower_sigma_loop:NN
-          \exp_after:wN #1 \l_tl_case_change_after_final_sigma_tl
-            \q_recursion_tail \q_recursion_stop
+        \exp_after:wN \__tl_change_case_lower_sigma:w #1
+          #2 \q_recursion_stop
+      }
+      {
+        \token_if_letter:NTF #1
+          { \c__unicode_std_sigma_tl }
+          { \c__unicode_final_sigma_tl }
       }
-  }
-\cs_new:Npn \__tl_change_case_lower_sigma_loop:NN #1#2
-  {
-    \quark_if_recursion_tail_stop_do:Nn #2
-      { \c__unicode_std_sigma_tl }
-    \int_compare:nNnT { `#1 } = { `#2 }
-      { \use_i_delimit_by_q_recursion_stop:nw { \c__unicode_final_sigma_tl } }
-    \__tl_change_case_lower_sigma_loop:NN #1
   }
 \cs_new_eq:NN \__tl_change_case_upper_sigma:Nnw \use_ii:nn
 \cs_new:Npn \__tl_change_case_lower_tr:Nnw #1#2
@@ -17361,15 +17382,22 @@
   }
 \cs_new:Npn \__tl_change_case_lower_tr_auxii:Nw #1#2 \q_recursion_stop
   {
-    \bool_if:nTF
+    \__tl_change_case_if_expandable:NTF #1
       {
-           \token_if_cs_p:N #1
-        || ! ( \int_compare_p:nNn { `#1 } = { "0307 } )
+        \exp_after:wN \__tl_change_case_lower_tr_auxi:Nw #1
+          #2 \q_recursion_stop
       }
-      { \__tl_change_case_output:Vwn \c__unicode_dotless_i_tl }
       {
-        \__tl_change_case_output:nwn { i }
-        \use_i:nn
+        \bool_if:nTF
+          {
+               \token_if_cs_p:N #1
+            || ! ( \int_compare_p:nNn { `#1 } = { "0307 } )
+          }
+          { \__tl_change_case_output:Vwn \c__unicode_dotless_i_tl }
+          {
+            \__tl_change_case_output:nwn { i }
+            \use_i:nn
+          }
       }
   }
 \cs_new:Npn \__tl_change_case_upper_tr:Nnw #1#2
@@ -17423,18 +17451,25 @@
   }
 \cs_new:Npn \__tl_change_case_lower_lt:NNw #1#2#3 \q_recursion_stop
   {
-    \bool_if:nT
+    \__tl_change_case_if_expandable:NTF #2
       {
-        ! \token_if_cs_p:N #2
-        &&
-          (
-               \int_compare_p:nNn { `#2 } = { "0300 }
-            || \int_compare_p:nNn { `#2 } = { "0301 }
-            || \int_compare_p:nNn { `#2 } = { "0303 }
-          )
+        \exp_after:wN \__tl_change_case_lower_lt:Nw \exp_after:wN #1 #2
+          #3 \q_recursion_stop
+      }
+      {
+        \bool_if:nT
+          {
+            ! \token_if_cs_p:N #2
+            &&
+              (
+                   \int_compare_p:nNn { `#2 } = { "0300 }
+                || \int_compare_p:nNn { `#2 } = { "0301 }
+                || \int_compare_p:nNn { `#2 } = { "0303 }
+              )
+          }
+          { \__tl_change_case_output:Vwn \c__unicode_dot_above_tl }
+        #1 #2#3 \q_recursion_stop
       }
-      { \__tl_change_case_output:Vwn \c__unicode_dot_above_tl }
-    #1 #2#3 \q_recursion_stop
   }
 \cs_new:Npn \__tl_change_case_upper_lt:Nnw #1
   {
@@ -17466,14 +17501,21 @@
   }
 \cs_new:Npn \__tl_change_case_upper_lt:NNw #1#2#3 \q_recursion_stop
   {
-    \bool_if:nTF
+    \__tl_change_case_if_expandable:NTF #2
+      {
+        \exp_after:wN \__tl_change_case_upper_lt:Nw \exp_after:wN #1 #2
+          #3 \q_recursion_stop
+      }
       {
-           ! \token_if_cs_p:N #2
-        && \int_compare_p:nNn { `#2 } = { "0307 }
+        \bool_if:nTF
+          {
+               ! \token_if_cs_p:N #2
+            && \int_compare_p:nNn { `#2 } = { "0307 }
+          }
+          { #1 }
+          { #1 #2 }
+        #3 \q_recursion_stop
       }
-      { #1 }
-      { #1 #2 }
-    #3 \q_recursion_stop
   }
 \cs_new:Npn \__tl_mixed_case:nn #1#2
   {
@@ -17623,21 +17665,28 @@
   }
 \cs_new:Npn \__tl_change_case_mixed_nl:NNw #1#2#3 \q_recursion_stop
   {
-    \bool_if:nTF
+    \__tl_change_case_if_expandable:NTF #2
       {
-        ! ( \token_if_cs_p:N #2 )
-        &&
-          (
-               \int_compare_p:nNn { `#2 } = { `j }
-            || \int_compare_p:nNn { `#2 } = { `J }
-          )
+        \exp_after:wN \__tl_change_case_mixed_nl:Nw \exp_after:wN #1 #2
+          #3 \q_recursion_stop
       }
       {
-        \__tl_change_case_output:nwn { J }
-        #1
+        \bool_if:nTF
+          {
+            ! ( \token_if_cs_p:N #2 )
+            &&
+              (
+                   \int_compare_p:nNn { `#2 } = { `j }
+                || \int_compare_p:nNn { `#2 } = { `J }
+              )
+          }
+          {
+            \__tl_change_case_output:nwn { J }
+            #1
+          }
+          { #1 #2 }
+        #3 \q_recursion_stop
       }
-      { #1 #2 }
-    #3 \q_recursion_stop
   }
 \tl_new:N \l_tl_case_change_math_tl
 \tl_set:Nn \l_tl_case_change_math_tl
@@ -17645,15 +17694,6 @@
 \tl_new:N \l_tl_case_change_exclude_tl
 \tl_set:Nn \l_tl_case_change_exclude_tl
   { \cite \ensuremath \label \ref }
-\tl_new:N \l_tl_case_change_after_final_sigma_tl
-\tl_set:Nx \l_tl_case_change_after_final_sigma_tl
-  {   % (
-    ) % [
-    ] % \{
-    \cs_to_str:N \}
-    . : ; ,
-    ! ? ' "
-  }
 \tl_new:N \l_tl_mixed_case_ignore_tl
 \tl_set:Nx \l_tl_mixed_case_ignore_tl
   {
diff --git a/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex b/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
index 1e8738ee241..800066f06ec 100644
--- a/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
+++ b/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
@@ -47,8 +47,8 @@
 %% -----------------------------------------------------------------------
 \def\ExplFileName{expl3}
 \def\ExplFileDescription{L3 programming layer}
-\def\ExplFileDate{2015/03/01}
-\def\ExplFileVersion{5547}
+\def\ExplFileDate{2015/06/15}
+\def\ExplFileVersion{5630}
 \let\ExplLoaderFileVersion\ExplFileVersion
 \begingroup
   \def\tempa{LaTeX2e}
diff --git a/Master/texmf-dist/tex/latex/l3kernel/expl3.sty b/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
index a9718fe6985..ce5dc6c34dc 100644
--- a/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
+++ b/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
@@ -47,8 +47,8 @@
 %% -----------------------------------------------------------------------
 \def\ExplFileName{expl3}
 \def\ExplFileDescription{L3 programming layer}
-\def\ExplFileDate{2015/03/01}
-\def\ExplFileVersion{5547}
+\def\ExplFileDate{2015/06/15}
+\def\ExplFileVersion{5630}
 \let\ExplLoaderFileVersion\ExplFileVersion
 \ProvidesPackage{\ExplFileName}
   [%
diff --git a/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty b/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
index fa9edcdc7fd..bf54335e6fe 100644
--- a/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
@@ -13,7 +13,7 @@
 %% 
 %% Do not distribute a modified version of this file.
 %% 
-%% File: l3keys2e.dtx (C) Copyright 2009,2011-2014 The LaTeX3 Project
+%% File: l3keys2e.dtx (C) Copyright 2009,2011-2015 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
@@ -46,8 +46,8 @@
 %%
 %% -----------------------------------------------------------------------
 %%
-\RequirePackage{expl3}[2014/11/25]
-\@ifpackagelater{expl3}{2014/11/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{l3keys2e}{Support package l3kernel too old}
@@ -59,7 +59,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: l3keys2e.dtx 5471 2014-11-25 20:11:29Z joseph $
+\GetIdInfo$Id: l3keys2e.dtx 5630 2015-06-15 08:49:02Z joseph $
   {LaTeX2e option processing using LaTeX3 keys}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty b/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
index c61f429ac41..14a6ae0329c 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
@@ -17,7 +17,7 @@
 %%                      David Carlisle
 %%                  (C) Copyright 2004-2008 Frank Mittelbach,
 %%                      The LaTeX3 Project
-%%                  (C) Copyright 2009-2014 The LaTeX3 Project
+%%                  (C) Copyright 2009-2015 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
@@ -50,8 +50,8 @@
 %%
 %% -----------------------------------------------------------------------
 %%
-\RequirePackage{expl3}[2014/11/25]
-\@ifpackagelater{expl3}{2014/11/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{xparse}{Support package l3kernel too old}
@@ -63,7 +63,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: xparse.dtx 5471 2014-11-25 20:11:29Z joseph $
+\GetIdInfo$Id: xparse.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental document command parser}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}
diff --git a/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty b/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
index 08e521220b6..880ef38681d 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
@@ -17,7 +17,7 @@
 %%                         David Carlisle
 %%                     (C) Copyright 2004-2010 Frank Mittelbach,
 %%                         The LaTeX3 Project
-%%                     (C) Copyright 2011-2014 The LaTeX3 Project
+%%                     (C) Copyright 2011-2015 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
@@ -50,8 +50,8 @@
 %%
 %% -----------------------------------------------------------------------
 %%
-\RequirePackage{expl3}[2014/11/25]
-\@ifpackagelater{expl3}{2014/11/25}
+\RequirePackage{expl3}[2015/06/15]
+\@ifpackagelater{expl3}{2015/06/15}
   {}
   {%
     \PackageError{xtemplate}{Support package l3kernel too old}
@@ -63,7 +63,7 @@
       }%
     \endinput
   }
-\GetIdInfo$Id: xtemplate.dtx 5471 2014-11-25 20:11:29Z joseph $
+\GetIdInfo$Id: xtemplate.dtx 5630 2015-06-15 08:49:02Z joseph $
   {L3 Experimental prototype document functions}
 \ProvidesExplPackage
   {\ExplFileName}{\ExplFileDate}{\ExplFileVersion}{\ExplFileDescription}