Update runtime files.
diff --git a/runtime/doc/pattern.txt b/runtime/doc/pattern.txt
index 19edb72..4a574e3 100644
--- a/runtime/doc/pattern.txt
+++ b/runtime/doc/pattern.txt
@@ -1,4 +1,4 @@
-*pattern.txt* For Vim version 8.2. Last change: 2020 Sep 01
+*pattern.txt* For Vim version 8.2. Last change: 2020 Dec 06
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -361,8 +361,8 @@
*/atom*
5. An atom can be one of a long list of items. Many atoms match one character
in the text. It is often an ordinary character or a character class.
- Braces can be used to make a pattern into an atom. The "\z(\)" construct
- is only for syntax highlighting.
+ Parentheses can be used to make a pattern into an atom. The "\z(\)"
+ construct is only for syntax highlighting.
atom ::= ordinary-atom |/ordinary-atom|
or \( pattern \) |/\(|
@@ -676,7 +676,7 @@
Note that using "\&" works the same as using "\@=": "foo\&.." is the
same as "\(foo\)\@=..". But using "\&" is easier, you don't need the
- braces.
+ parentheses.
*/\@!*
@@ -1069,8 +1069,8 @@
[] (with 'nomagic': \[]) */[]* */\[]* */\_[]* */collection*
\_[]
- A collection. This is a sequence of characters enclosed in brackets.
- It matches any single character in the collection.
+ A collection. This is a sequence of characters enclosed in square
+ brackets. It matches any single character in the collection.
Example matches ~
[xyz] any 'x', 'y' or 'z'
[a-zA-Z]$ any alphabetic character at the end of a line
@@ -1129,11 +1129,12 @@
*[:ident:]* [:ident:] identifier character (same as "\i")
*[:keyword:]* [:keyword:] keyword character (same as "\k")
*[:fname:]* [:fname:] file name character (same as "\f")
- The brackets in character class expressions are additional to the
- brackets delimiting a collection. For example, the following is a
- plausible pattern for a UNIX filename: "[-./[:alnum:]_~]\+" That is,
- a list of at least one character, each of which is either '-', '.',
- '/', alphabetic, numeric, '_' or '~'.
+ The square brackets in character class expressions are additional to
+ the square brackets delimiting a collection. For example, the
+ following is a plausible pattern for a UNIX filename:
+ "[-./[:alnum:]_~]\+". That is, a list of at least one character,
+ each of which is either '-', '.', '/', alphabetic, numeric, '_' or
+ '~'.
These items only work for 8-bit characters, except [:lower:] and
[:upper:] also work for multibyte characters when using the new
regexp engine. See |two-engines|. In the future these items may