1 files changed, 24 insertions, 2 deletions
diff --git a/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex b/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
index 0bd3c4c3f10..cd2f1013847 100644
--- a/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
+++ b/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
@@ -64,7 +64,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2019-05-07}%
+\def\ExplFileDate{2019-05-09}%
 \begingroup
   \def\next{\endgroup}%
   \expandafter\ifx\csname PackageError\endcsname\relax
@@ -11036,7 +11036,7 @@
         \prg_return_false:
       }
       {
-        \exp_args:NV \file_parse_full_name:nNNN \l__file_full_name_tl
+        \file_parse_full_name:VNNN \l__file_full_name_tl
           \l__file_dir_str \l__file_name_str \l__file_ext_str
         \str_if_empty:NT \l__file_ext_str
           {
@@ -11210,6 +11210,7 @@
     \exp_after:wN \__file_parse_full_name_auxi:w
       \tl_to_str:n { #1 " #1 " } \q_stop #2#3#4
   }
+\cs_generate_variant:Nn \file_parse_full_name:nNNN { V }
 \cs_new_protected:Npn \__file_parse_full_name_auxi:w
   #1 " #2 " #3 \q_stop #4#5#6
   {
@@ -26453,6 +26454,27 @@
       { \iow_shipout:Nn \c__sys_shell_stream_int {#1} }
   }
 \cs_generate_variant:Nn \sys_shell_shipout:n { x }
+\cs_new_protected:Npn \ior_shell_open:Nn #1#2
+  {
+    \sys_if_shell:TF
+      { \exp_args:No \__ior_shell_open:nN { \tl_to_str:n {#2} } #1 }
+      { \__kernel_msg_error:nn { kernel } { pipe-failed } }
+  }
+\cs_new_protected:Npn \__ior_shell_open:nN #1#2
+  {
+    \tl_if_in:nnTF {#1} { " }
+      {
+        \__kernel_msg_error:nnx
+          { kernel } { quote-in-shell } {#1}
+      }
+      { \__kernel_ior_open:Nn #2 { "|#1" } }
+  }
+\__kernel_msg_new:nnnn { kernel } { pipe-failed }
+  { Cannot~run~piped~system~commands. }
+  {
+    LaTeX~tried~to~call~a~system~process~but~this~was~not~possible.\\
+    Try~the~"--shell-escape"~(or~"--enable-pipes")~option.
+  }
 \cs_new:Npn \char_lower_case:N #1
   { \__char_change_case:nNN { lower } \char_value_lccode:n #1 }
 \cs_new:Npn \char_upper_case:N #1