l3 (14feb20)

git-svn-id: svn://tug.org/texlive/trunk@53781 c570f23f-e606-0410-a88d-b1316a301751

9 files changed, 64 insertions, 35 deletions

diff --git a/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex b/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
index e5cf8f23b70..c7bb0a92ebf 100644
--- a/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
+++ b/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
@@ -67,7 +67,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-02-11}%
+\def\ExplFileDate{2020-02-14}%
 \begingroup
   \def\next{\endgroup}%
   \expandafter\ifx\csname PackageError\endcsname\relax
@@ -28025,7 +28025,7 @@
 \cs_new:Npn \__text_expand_math_search:NNN #1#2#3
   {
     \quark_if_recursion_tail_stop_do:Nn #2
-      { \__text_expand_implicit:N #1 }
+      { \__text_expand_explicit:N #1 }
     \token_if_eq_meaning:NNTF #1 #2
       {
         \use_i_delimit_by_q_recursion_stop:nw
@@ -28067,11 +28067,6 @@
     \__text_expand_store:n { ~ }
     \__text_expand_math_loop:Nw #1
   }
-\cs_new:Npn \__text_expand_implicit:N #1
-  {
-    \exp_args:NNe \use:nn \__text_expand_explicit:N
-      { \__text_token_to_explicit:N #1 }
-  }
 \cs_new:Npn \__text_expand_explicit:N #1
   {
     \token_if_cs:NTF #1
@@ -28590,7 +28585,7 @@
   \__text_change_case_char_next_lower:nn
 \cs_new:Npn \__text_change_case_char_next_end:nn #1#2
   { \__text_change_case_break:w }
-\bool_lazy_or:nnT
+\bool_lazy_or:nnTF
   { \sys_if_engine_luatex_p: }
   { \sys_if_engine_xetex_p: }
   {
@@ -28599,13 +28594,33 @@
         \int_compare:nNnTF { `#4 } = { "00DF }
           {
             \__text_change_case_store:e
-              { \char_generate:nn { "1E9E } { \__text_char_catcode:N #4 } }
+             { \char_generate:nn { "1E9E } { \__text_char_catcode:N #4 } }
             \use:c { __text_change_case_char_next_ #2 :nn }
               {#2} {#3}
           }
           { \__text_change_case_char:nnnN {#1} {#2} {#3} #4 }
       }
   }
+  {
+    \cs_new:cpx { __text_change_case_upper_de-alt:nnnN } #1#2#3#4
+      {
+        \exp_not:N \int_compare:nNnTF { `#4 } = { "00C3 }
+          {
+            \exp_not:c { __text_change_case_upper_de-alt:nnnNN }
+              {#1} {#2} {#3} #4
+          }
+          { \exp_not:N \__text_change_case_char:nnnN {#1} {#2} {#3} #4 }
+      }
+    \cs_new:cpn { __text_change_case_upper_de-alt:nnnNN } #1#2#3#4#5
+      {
+        \int_compare:nNnTF { `#5 } = { "009F }
+          {
+            \__text_change_case_store:V \c__text_grosses_Eszett_tl
+            \use:c { __text_change_case_char_next_ #2 :nn } {#2} {#3}
+          }
+          { \__text_change_case_char:nnnN {#1} {#2} {#3} #4#5 }
+      }
+  }
 \bool_lazy_or:nnT
   { \sys_if_engine_luatex_p: }
   { \sys_if_engine_xetex_p: }
@@ -28979,16 +28994,22 @@
                       \exp_not:N \char_generate:nn {##1} { 13 }
                     \exp_after:wN \exp_after:wN \exp_after:wN
                       \exp_not:N \char_generate:nn {##2} { 13 }
+                    \tl_if_blank:nF {##3}
+                      {
+                        \exp_after:wN \exp_after:wN \exp_after:wN
+                          \exp_not:N \char_generate:nn {##3} { 13 }
+                      }
                   }
               }
             \use:x
               { \__text_tmp:w \char_to_utfviii_bytes:n { "#2 } }
           \group_end:
         }
-      \__text_tmp:w \c__text_dotless_i_tl { 0131 }
-      \__text_tmp:w \c__text_dotted_I_tl  { 0130 }
-      \__text_tmp:w \c__text_i_ogonek_tl  { 012F }
-      \__text_tmp:w \c__text_I_ogonek_tl  { 012E }
+      \__text_tmp:w \c__text_dotless_i_tl      { 0131 }
+      \__text_tmp:w \c__text_dotted_I_tl       { 0130 }
+      \__text_tmp:w \c__text_i_ogonek_tl       { 012F }
+      \__text_tmp:w \c__text_I_ogonek_tl       { 012E }
+      \__text_tmp:w \c__text_grosses_Eszett_tl { 1E9E }
     }
 \group_end:
 \group_begin:
@@ -29199,22 +29220,29 @@
     \AtBeginDocument
       {
         \group_begin:
-          \cs_set_protected:Npn \__text_change_case_setup:NN #1#2
+          \cs_set_protected:Npn \__text_change_case_setup:Nn #1#2
             {
               \quark_if_recursion_tail_stop:N #1
-              \cs_if_exist:cF { c__text_uppercase_ \token_to_str:N #1 _tl }
+              \tl_if_single_token:nT {#2}
                 {
-                  \tl_const:cn { c__text_uppercase_ \token_to_str:N #1 _tl }
-                    { #2 }
-                }
-              \cs_if_exist:cF { c__text_lowercase_ \token_to_str:N #2 _tl }
-                {
-                  \tl_const:cn { c__text_lowercase_ \token_to_str:N #2 _tl }
-                    { #1 }
+                  \cs_if_exist:cF
+                    { c__text_uppercase_ \token_to_str:N #1 _tl }
+                    {
+                      \tl_const:cn
+                        { c__text_uppercase_ \token_to_str:N #1 _tl }
+                        { #2 }
+                    }
+                  \cs_if_exist:cF
+                    { c__text_lowercase_ \token_to_str:N #2 _tl }
+                    {
+                      \tl_const:cn
+                        { c__text_lowercase_ \token_to_str:N #2 _tl }
+                        { #1 }
+                    }
                 }
-              \__text_change_case_setup:NN
+              \__text_change_case_setup:Nn
             }
-          \exp_after:wN \__text_change_case_setup:NN \@uclclist
+          \exp_after:wN \__text_change_case_setup:Nn \@uclclist
           \q_recursion_tail ?
           \q_recursion_stop
         \group_end:
diff --git a/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex b/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
index 7e0773eff7a..8a82e25d406 100644
--- a/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
+++ b/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
@@ -19,7 +19,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-02-11}%
+\def\ExplFileDate{2020-02-14}%
 \let\ExplLoaderFileDate\ExplFileDate
 \begingroup
   \def\tempa{LaTeX2e}%
diff --git a/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx b/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx
index f55598106e2..9d3b5fbd47e 100644
--- a/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx
+++ b/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx
@@ -19,7 +19,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-02-11}%
+\def\ExplFileDate{2020-02-14}%
 \let\ExplLoaderFileDate\ExplFileDate
 \everyjob\expandafter{\the\everyjob
   \message{L3 programming layer <\ExplFileDate>}%
diff --git a/Master/texmf-dist/tex/latex/l3kernel/expl3.sty b/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
index b468305c4d6..b86e9bb944c 100644
--- a/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
+++ b/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
@@ -19,7 +19,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-02-11}%
+\def\ExplFileDate{2020-02-14}%
 \let\ExplLoaderFileDate\ExplFileDate
 \ProvidesPackage{expl3}
   [%
diff --git a/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty b/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
index 8f66812c5dc..551e15dbd1d 100644
--- a/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{l3keys2e}{2020-02-08}{}
+\ProvidesExplPackage{l3keys2e}{2020-02-14}{}
   {LaTeX2e option processing using LaTeX3 keys}
 \cs_generate_variant:Nn \clist_put_right:Nn { Nv }
 \cs_generate_variant:Nn \keys_if_exist:nnT  { nx }
diff --git a/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty b/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty
index 5b890cd5d30..3007936c49e 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty
@@ -33,7 +33,7 @@
     \endinput
   }
 \RequirePackage{xparse}
-\ProvidesExplPackage{xfp}{2020-02-08}{}
+\ProvidesExplPackage{xfp}{2020-02-14}{}
   {L3 Floating point unit}
 \NewExpandableDocumentCommand \fpeval { m } { \fp_eval:n {#1} }
 \NewExpandableDocumentCommand \inteval { m } { \int_eval:n {#1} }
diff --git a/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty b/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty
index 0874931afee..e6b317d0832 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty
@@ -6,7 +6,8 @@
 %%
 %% xfrac.dtx  (with options: `package')
 %% 
-%% Copyright (C) 2011-2020 The LaTeX3 Project
+%% Copyright (C) 2004,2008-2010 Morten Hoegholm
+%%           (C) 2011-2020 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
@@ -33,7 +34,7 @@
     \endinput
   }
 \RequirePackage{amstext,graphicx,l3keys2e,textcomp,xparse,xtemplate}
-\ProvidesExplPackage{xfrac}{2020-02-08}{}
+\ProvidesExplPackage{xfrac}{2020-02-14}{}
   {L3 Experimental split-level fractions}
 \keys_define:nn { xfrac }
   {
diff --git a/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty b/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
index 27ba207434f..f8822d09fdc 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{xparse}{2020-02-08}{}
+\ProvidesExplPackage{xparse}{2020-02-14}{}
   {L3 Experimental document command parser}
 \tl_new:N \l__xparse_arg_spec_tl
 \tl_new:N \l__xparse_args_tl
@@ -1662,10 +1662,10 @@
   }
 \exp_args:No \__xparse_tmp:w { \c_novalue_tl }
 \cs_new:Npn \__xparse_expandable_grab_R_alt:w #1 \q__xparse #2#3
-  { #2 { \__xparse_expandable_grab_R_alt_aux:NNnwNn #1 \q__xparse #2#3 } }
+  { #2 { \__xparse_expandable_grab_R_alt_aux:NNwNNn #1 \q__xparse #2#3 } }
 \cs_set_protected:Npn \__xparse_tmp:w #1
   {
-    \cs_new:Npn \__xparse_expandable_grab_R_alt_aux:NNwNn ##1##2##3 \q__xparse ##4##5##6
+    \cs_new:Npn \__xparse_expandable_grab_R_alt_aux:NNwNNn ##1##2##3 \q__xparse ##4##5##6
       {
         \str_if_eq:nnTF {##6} {##2}
           {
diff --git a/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty b/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
index 488eb3d7c48..90f24a68d27 100644
--- a/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
+++ b/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{xtemplate}{2020-02-08}{}
+\ProvidesExplPackage{xtemplate}{2020-02-14}{}
   {L3 Experimental prototype document functions}
 \tl_const:Nn \c__xtemplate_code_root_tl      { template~code~>~ }
 \tl_const:Nn \c__xtemplate_defaults_root_tl  { template~defaults~>~ }