1 files changed, 48 insertions, 2 deletions
diff --git a/Master/texmf-dist/source/latex/koma-script/doc/english/scrlttr2-experts.tex b/Master/texmf-dist/source/latex/koma-script/doc/english/scrlttr2-experts.tex
index ffb397b6d27..722183a7bd2 100644
--- a/Master/texmf-dist/source/latex/koma-script/doc/english/scrlttr2-experts.tex
+++ b/Master/texmf-dist/source/latex/koma-script/doc/english/scrlttr2-experts.tex
@@ -46,14 +46,14 @@
 % ============================================================================
 
 \KOMAProvidesFile{scrlttr2-experts.tex}
-                 [$Date: 2019-01-15 08:29:44 +0100 (Tue, 15 Jan 2019) $
+                 [$Date: 2019-10-10 09:50:23 +0200 (Thu, 10 Oct 2019) $
                   KOMA-Script guide (chapter: scrlttr2 for experts)]
 
 \translator{Harald Bongartz\and Georg Grandke\and Raimund Kohl\and Jens-Uwe
   Morawski\and Stephan Hennig\and Gernot Hassenpflug\and Markus Kohm\and
   Karl Hagen}
 
-% Date of the translated German file: 2018-07-20
+% Date of the translated German file: 2019-10-09
 
 \chapter{Additional Information about the \Class{scrlttr2} Class and the
  \Package{scrletter} Package}
@@ -400,6 +400,22 @@ exists for package authors.%
 
 
 \begin{Declaration}
+  \Macro{Ifplength}\Parameter{pseudo-length}%
+                   \Parameter{then-code}\Parameter{else-code}
+\end{Declaration}
+This\ChangedAt{v3.27}{\Class{scrlttr2}\and \Class{scrletter}} command can be
+used to determine whether a \PName{pseudo-length} has been defined. The
+\PName{then-code} is executed if the \PName{pseudo-length} is defined and not
+\Macro{relax}. Otherwise the \PName{else-code} is executed.
+
+% Note: In the English manual this information is not \iffree{}{...}!
+\BeginIndex{Cmd}{if@plength}%
+For reasons of consistency only, the internal command \Macro{if@plength},
+with the identical meaning, exists for the use of package authors.%
+\EndIndexGroup
+
+
+\begin{Declaration}
   \Macro{setplength}%
     \OParameter{factor}\Parameter{pseudo-length}\Parameter{value}%
   \Macro{addtoplength}%
@@ -1280,6 +1296,36 @@ it is robust enough to be used as the argument of
 example.%
 %
 \EndIndexGroup
+
+
+\begin{Declaration}
+  \Macro{foreachkomavar}\Parameter{list of variables}\Parameter{command}
+  \Macro{foreachnonemptykomavar}\Parameter{list of variables}\Parameter{command}
+  \Macro{foreachemptykomavar}\Parameter{list of variables}\Parameter{command}
+  \Macro{foreachkomavarifempty}\Parameter{list of variables}
+                               \Parameter{then-code}\Parameter{else-code}
+\end{Declaration}
+The\ChangedAt{v3.27}{\Class{scrlttr2}\and \Package{scrletter}} 
+\Macro{foreachkomavar} command executes the specified \PName{command} for each
+variable in the comma-separated \PName{list of variables}. The name of each
+variable is added as parameter to the \PName{command}.%
+
+The \Macro{foreachnonemptykomavar} command does the same but only for those
+variables that are not empty in sense of
+\DescRef{\LabelBase.cmd.ifkomavarempty}. Empty variables in the \PName{list of
+  variables} are ignored.
+
+By contrast, the \Macro{foreachemptykomavar} command executes the
+\PName{command} only for variables that are empty in sense of
+\DescRef{\LabelBase.cmd.ifkomavarempty}. Accordingly, non-empty variables are
+ignored.
+
+The \Macro{foreachkomavarifempty} command is a kind of combination of the two
+previously described commands. It executes the \PName{then-command} only for
+those variables in the \PName{list of variables} that are empty, and the
+\PName{else-command} for the non empty variables. As with \PName{command}, the
+name of each variable is added as a parameter in both cases.%
+\EndIndexGroup
 %
 \EndIndexGroup