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Document print-escape-control-characters

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* doc/lispref/streams.texi, etc/NEWS: Add doc.
This commit is contained in:
Paul Eggert 2018-02-27 20:13:00 -08:00
parent c00fea918e
commit 5e69219fda
2 changed files with 14 additions and 3 deletions
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7
doc/lispref/streams.texi
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@ -778,6 +778,13 @@ In the second expression, the local binding of
@code{prin1}, but not during the printing of the result.
@end defvar
@defvar print-escape-control-characters
If this variable is non-@code{nil}, control characters in strings are
printed as backslash sequences by the print functions @code{prin1} and
@code{print} that print with quoting. If this variable and
@code{print-escape-newlines} are both non-@code{nil}, the latter takes
precedences for newlines and formfeeds.
@defvar print-escape-nonascii
If this variable is non-@code{nil}, then unibyte non-@acronym{ASCII}
characters in strings are unconditionally printed as backslash sequences

10
etc/NEWS
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@ -1219,7 +1219,7 @@ backend", which has been updated to benefit from the new UI features.
** Term
---
*** `term-char-mode' now makes its buffer read-only.
*** 'term-char-mode' now makes its buffer read-only.
The buffer is made read-only to prevent changes from being made by
anything other than the process filter; and movements of point away
@ -1228,8 +1228,8 @@ correct position after each command. This is needed to avoid states
which are inconsistent with the state of the terminal understood by
the inferior process.
New user options `term-char-mode-buffer-read-only' and
`term-char-mode-point-at-process-mark' control these behaviors, and
New user options 'term-char-mode-buffer-read-only' and
'term-char-mode-point-at-process-mark' control these behaviors, and
are non-nil by default. Customize these options to nil if you want
the previous behavior.
@ -1746,6 +1746,10 @@ instead of 0.8, to avoid rounding glitches.
when a symbol's value is changed. This is used to implement the new
debugger command 'debug-on-variable-change'.
+++
** New variable 'print-escape-control-characters' causes 'prin1' and
'print' to output control characters as backslash sequences.
+++
** Time conversion functions that accept a time zone rule argument now
allow it to be OFFSET or a list (OFFSET ABBR), where the integer