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Undocumented %-constructs (was: memory consumption with pure-space-overf
From: |
Juri Linkov |
Subject: |
Undocumented %-constructs (was: memory consumption with pure-space-overflow) |
Date: |
Fri, 12 May 2006 02:01:45 +0300 |
User-agent: |
Gnus/5.110004 (No Gnus v0.4) Emacs/22.0.50 (gnu/linux) |
> Below is a list of options currently documented in Info and docstring,
> and really implemented options (thus spaces denote undocumented options):
>
> In the node (info "(elisp)%-Constructs"): bc fFiIlmMnpPst *+&[]-%
> In the docstring of `mode-line-format': bc fFiIlm npPs zZ*+&[]-%
> Really implemented in `decode_mode_spec': bcefFiIlm npPstzZ*+&[]-%
>
> Would someone please write the missing documentation for options
> e, t, z, Z, then ack?
Below is a patch with the missing documentation based on the source code.
Please correct me if I misinterpreted the meaning of these constructs.
I removed %M from Info because it is not supported, while %m is supported,
albeit obsolete.
Index: lispref/modes.texi
===================================================================
RCS file: /sources/emacs/emacs/lispref/modes.texi,v
retrieving revision 1.139
diff -c -r1.139 modes.texi
*** lispref/modes.texi 30 Apr 2006 02:35:35 -0000 1.139
--- lispref/modes.texi 11 May 2006 23:03:59 -0000
***************
*** 1927,1932 ****
--- 1931,1939 ----
@item %c
The current column number of point.
+ @item %e
+ The error message if Emacs is close to out of memory for Lisp objects.
+
@item %f
The visited file name, obtained with the @code{buffer-file-name}
function. @xref{Buffer File Name}.
***************
*** 1972,1977 ****
--- 1979,1990 ----
meaningful distinction only on certain operating systems (@pxref{MS-DOS
File Types}).
+ @item %z
+ The mnemonics of buffer, terminal, and keyboard coding systems.
+
+ @item %Z
+ Like @samp{%z}, but including the end-of-line format.
+
@item %*
@samp{%} if the buffer is read only (see @code{buffer-read-only}); @*
@samp{*} if the buffer is modified (see @code{buffer-modified-p}); @*
***************
*** 2003,2018 ****
string in which @code{%}-constructs are allowed.
@end table
! The following two @code{%}-constructs are still supported, but they are
! obsolete, since you can get the same results with the variables
! @code{mode-name} and @code{global-mode-string}.
@table @code
@item %m
The value of @code{mode-name}.
-
- @item %M
- The value of @code{global-mode-string}.
@end table
@node Properties in Mode
--- 2016,2028 ----
string in which @code{%}-constructs are allowed.
@end table
! The following @code{%}-construct is still supported, but it is
! obsolete, since you can get the same result with the variable
! @code{mode-name}.
@table @code
@item %m
The value of @code{mode-name}.
@end table
@node Properties in Mode
Index: src/buffer.c
===================================================================
RCS file: /sources/emacs/emacs/src/buffer.c,v
retrieving revision 1.501
diff -c -r1.501 buffer.c
*** src/buffer.c 25 Feb 2006 23:33:57 -0000 1.501
--- src/buffer.c 11 May 2006 23:06:16 -0000
***************
*** 5440,5447 ****
--- 5440,5449 ----
or print Bottom or All.
%m -- print the mode name.
%n -- print Narrow if appropriate.
+ %t -- visited file is text or binary (if OS supports this distinction).
%z -- print mnemonics of buffer, terminal, and keyboard coding systems.
%Z -- like %z, but including the end-of-line format.
+ %e -- print error message about full memory.
%[ -- print one [ for each recursive editing level. %] similar.
%% -- print %. %- -- print infinitely many dashes.
Decimal digits after the % specify field width to which to pad. */);
--
Juri Linkov
http://www.jurta.org/emacs/
- Re: memory consumption with pure-space-overflow, Reiner Steib, 2006/05/02
- Re: memory consumption with pure-space-overflow, Eli Zaretskii, 2006/05/05
- Re: memory consumption with pure-space-overflow, Reiner Steib, 2006/05/05
- Re: memory consumption with pure-space-overflow, Richard Stallman, 2006/05/05
- Re: memory consumption with pure-space-overflow, Reiner Steib, 2006/05/06
- Re: memory consumption with pure-space-overflow, Richard Stallman, 2006/05/06
- Re: memory consumption with pure-space-overflow, Juri Linkov, 2006/05/09
- Re: memory consumption with pure-space-overflow, Richard Stallman, 2006/05/10
- Undocumented %-constructs (was: memory consumption with pure-space-overflow),
Juri Linkov <=
- Re: Undocumented %-constructs, Johan Bockgård, 2006/05/11
- Re: Undocumented %-constructs, Juri Linkov, 2006/05/12
- Re: Undocumented %-constructs (was: memory consumption with pure-space-overflow), Richard Stallman, 2006/05/14