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(Lisp and Coding Systems): Document inhibit-null-byte-detection and

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inhibit-iso-escape-detection.
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Eli Zaretskii 2009-01-10 12:02:28 +00:00
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5
doc/lispref/ChangeLog
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@ -1,3 +1,8 @@
2009-01-10 Eli Zaretskii <eliz@gnu.org>
* nonascii.texi (Lisp and Coding Systems): Document
inhibit-null-byte-detection and inhibit-iso-escape-detection.
2009-01-09 Chong Yidong <cyd@stupidchicken.com>
* display.texi (Font Lookup): Remove obsolete function

19
doc/lispref/nonascii.texi
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@ -1098,6 +1098,9 @@ If the region contains only @acronym{ASCII} characters except for such
ISO-2022 control characters ISO-2022 as @code{ESC}, the value is
@code{undecided} or @code{(undecided)}, or a variant specifying
end-of-line conversion, if that can be deduced from the text.
If the region contains null bytes, the value is @code{no-conversion},
even if the region contains text encoded in some coding system.
@end defun
@defun detect-coding-string string &optional highest
@ -1105,6 +1108,22 @@ This function is like @code{detect-coding-region} except that it
operates on the contents of @var{string} instead of bytes in the buffer.
@end defun
@defvar inhibit-null-byte-detection
If this variable has a non-@code{nil} value, null bytes are ignored
when detecting the encoding of a region or a string. This allows to
correctly detect the encoding of text that contains null bytes, such
as Info files with Index nodes.
@end defvar
@defvar inhibit-iso-escape-detection
If this variable has a non-@code{nil} value, ISO-2022 escape sequences
are ignored when detecting the encoding of a region or a string. The
result is that no text is ever detected as encoded in some ISO-2022
encoding, and all escape sequences become visible in a buffer.
@strong{Warning:} @emph{Use this variable with extreme caution,
because many files in the Emacs distribution use ISO-2022 encoding.}
@end defvar
@defun coding-system-charset-list coding-system
This function returns the list of character sets (@pxref{Character
Sets}) supported by @var{coding-system}. Some coding systems that