Update runtime files.
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 1e5b5a0..96feb7d 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt* For Vim version 8.1. Last change: 2019 Aug 08
+*eval.txt* For Vim version 8.1. Last change: 2019 Aug 17
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -483,7 +483,7 @@
entry. Note that the String '04' and the Number 04 are different, since the
Number will be converted to the String '4'. The empty string can also be used
as a key.
- *literal-Dict*
+ *literal-Dict* *#{}*
To avoid having to put quotes around every key the #{} form can be used. This
does require the key to consist only of ASCII letters, digits, '-' and '_'.
Example: >
@@ -1219,7 +1219,7 @@
expr8->name([args]) method call *method* *->*
expr8->{lambda}([args])
-
+ *E276*
For methods that are also available as global functions this is the same as: >
name(expr8 [, args])
There can also be methods specifically for the type of "expr8".
@@ -1230,7 +1230,7 @@
<
Example of using a lambda: >
GetPercentage->{x -> x * 100}()->printf('%d%%')
-
+<
*E274*
"->name(" must not contain white space. There can be white space before the
"->" and after the "(", thus you can split the lines like this: >
@@ -1239,7 +1239,10 @@
\ ->map(mapexpr)
\ ->sort()
\ ->join()
-<
+
+When using the lambda form there must be no white space between the } and the
+(.
+
*expr9*
number
@@ -2035,14 +2038,19 @@
Read-only.
*v:progpath* *progpath-variable*
-v:progpath Contains the command with which Vim was invoked, including the
- path. Useful if you want to message a Vim server using a
+v:progpath Contains the command with which Vim was invoked, in a form
+ that when passed to the shell will run the same Vim executable
+ as the current one (if $PATH remains unchanged).
+ Useful if you want to message a Vim server using a
|--remote-expr|.
To get the full path use: >
echo exepath(v:progpath)
-< If the path is relative it will be expanded to the full path,
- so that it still works after `:cd`. Thus starting "./vim"
- results in "/home/user/path/to/vim/src/vim".
+< If the command has a relative path it will be expanded to the
+ full path, so that it still works after `:cd`. Thus starting
+ "./vim" results in "/home/user/path/to/vim/src/vim".
+ On Linux and other systems it will always be the full path.
+ On Mac it may just be "vim" and using exepath() as mentioned
+ above should be used to get the full path.
On MS-Windows the executable may be called "vim.exe", but the
".exe" is not added to v:progpath.
Read-only.
@@ -9320,6 +9328,7 @@
autocommands and not actually show syntax highlighting.
*E994*
Not all commands are allowed in popup windows.
+ When window {id} does not exist then no error is given.
win_findbuf({bufnr}) *win_findbuf()*
Returns a list with |window-ID|s for windows that contain
@@ -10341,6 +10350,12 @@
:let ${env-name} = {expr1} *:let-environment* *:let-$*
Set environment variable {env-name} to the result of
the expression {expr1}. The type is always String.
+
+ On some systems making an environment variable empty
+ causes it to be deleted. Many systems do not make a
+ difference between an environment variable that is not
+ set and an environment variable that is empty.
+
:let ${env-name} .= {expr1}
Append {expr1} to the environment variable {env-name}.
If the environment variable didn't exist yet this