Merge from origin/emacs-27

32090a3de4 Improve documentation of streams in batch mode
34feded008 Support ks_c_5601-1987 encoding
da00a6f317 Fix Xaw widget text disappearing when built with cairo (bu...
6916e7954a Improve documentation of 'ps-print-color-p'
6663b2f211 ; * lisp/simple.el (move-beginning-of-line): Doc fix.
a4dd03ebe9 ; * src/charset.c (Fmap_charset_chars): Doc fix.
d86cc3ffcb ; * src/chartab.c, src/lisp.h: Fix typos in comments.

diff --cc doc/emacs/misc.texi
Simple merge

diff --cc doc/lispref/os.texi
Simple merge

diff --cc doc/lispref/streams.texi
Simple merge

diff --cc lisp/language/korean.el
Simple merge

diff --cc lisp/simple.el
index dd271b0b5dd3e469b97c74529a2023ebac70a5f1,2286279ec011c4836031e40c174d9c16a16e7459..6059c23a14e490cc092c4a80774582a95b559786
--- 1/lisp/simple.el
--- 2/lisp/simple.el
+++ b/lisp/simple.el
@@@ -7199,9 -6862,16 +7199,15 @@@ rests.
            (setq done t)))))))
  
  (defun move-beginning-of-line (arg)
 -  "Move point to beginning of current line as displayed.
 -\(If there's an image in the line, this disregards newlines
 -that are part of the text that the image rests on.)
 +  "Move point to visible beginning of current logical line.
 +This disregards any invisible newline characters.
  
+ When moving from position that has no `field' property, this
+ command doesn't enter text which has non-nil `field' property.
+ In particular, when invoked in the minibuffer, the command will
+ stop short of entering the text of the minibuffer prompt.
+ See `inhibit-field-text-motion' for how to inhibit this.
+ 
  With argument ARG not nil or 1, move forward ARG - 1 lines first.
  If point reaches the beginning or end of buffer, it stops there.
  \(But if the buffer doesn't end in a newline, it stops at the

diff --cc src/charset.c
Simple merge

diff --cc src/chartab.c
Simple merge

diff --cc src/lisp.h
index 416c9b0cac166e8fbd872973c4e831136da88811,39fbf12f95e22799899bc9934791c9df4d16e7be..e83304462fa634b5b2fb21b27449bce5538465de
--- 1/src/lisp.h
--- 2/src/lisp.h
+++ b/src/lisp.h
@@@ -1890,23 -1914,30 +1890,24 @@@ memclear (void *p, ptrdiff_t nbytes
    (offsetof (type, lastlispfield) + word_size < header_size           \
     ? 0 : (offsetof (type, lastlispfield) + word_size - header_size) / word_size)
  
 -/* Compute A OP B, using the unsigned comparison operator OP.  A and B
 -   should be integer expressions.  This is not the same as
 -   mathematical comparison; for example, UNSIGNED_CMP (0, <, -1)
 -   returns true.  For efficiency, prefer plain unsigned comparison if A
 -   and B's sizes both fit (after integer promotion).  */
 -#define UNSIGNED_CMP(a, op, b)                                                \
 -  (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned)      \
 -   ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0)                     \
 -   : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0))
 -
  /* True iff C is an ASCII character.  */
 -#define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80)
 +INLINE bool
 +ASCII_CHAR_P (intmax_t c)
 +{
 +  return 0 <= c && c < 0x80;
 +}
  
- /* A char-table is a kind of vectorlike, with contents are like a
-    vector but with a few other slots.  For some purposes, it makes
-    sense to handle a char-table with type struct Lisp_Vector.  An
-    element of a char table can be any Lisp objects, but if it is a sub
-    char-table, we treat it a table that contains information of a
-    specific range of characters.  A sub char-table is like a vector but
-    with two integer fields between the header and Lisp data, which means
+ /* A char-table is a kind of vectorlike, with contents like a vector,
+    but with a few additional slots.  For some purposes, it makes sense
+    to handle a char-table as type 'struct Lisp_Vector'.  An element of
+    a char-table can be any Lisp object, but if it is a sub-char-table,
+    we treat it as a table that contains information of a specific
+    range of characters.  A sub-char-table is like a vector, but with
+    two integer fields between the header and Lisp data, which means
     that it has to be marked with some precautions (see mark_char_table
-    in alloc.c).  A sub char-table appears only in an element of a char-table,
-    and there's no way to access it directly from Emacs Lisp program.  */
+    in alloc.c).  A sub-char-table appears only in an element of a
+    char-table, and there's no way to access it directly from a Lisp
+    program.  */
  
  enum CHARTAB_SIZE_BITS
    {