@c This is part of the Emacs manual.
-@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2012
-@c Free Software Foundation, Inc.
+@c Copyright (C) 1985-1987, 1993-1995, 1997, 2000-2014 Free Software
+@c Foundation, Inc.
@c See file emacs.texi for copying conditions.
@node Building
@chapter Compiling and Testing Programs
@findex next-error-follow-minor-mode
You can type @kbd{C-c C-f} to toggle Next Error Follow mode. In
this minor mode, ordinary cursor motion in the compilation buffer
-automatically updates the source buffer, i.e.@: moving the cursor over
+automatically updates the source buffer, i.e., moving the cursor over
an error message causes the locus of that error to be displayed.
The features of Compilation mode are also available in a minor mode
@ifnottex
On the MS-DOS ``operating system'', asynchronous subprocesses are
not supported, so @kbd{M-x compile} runs the compilation command
-synchronously (i.e.@: you must wait until the command finishes before
+synchronously (i.e., you must wait until the command finishes before
you can do anything else in Emacs). @xref{MS-DOS}.
@end ifnottex
@findex gud-tooltip-mode
@vindex gud-tooltip-echo-area
GUD Tooltip mode is a global minor mode that adds tooltip support to
-GUD. To toggle this mode, type @kbd{M-x gud-tooltip-mode}. It is
+GUD@. To toggle this mode, type @kbd{M-x gud-tooltip-mode}. It is
disabled by default. If enabled, you can move the mouse cursor over a
variable, a function, or a macro (collectively called
@dfn{identifiers}) to show their values in tooltips
selecting stack frames, and stepping through the program.
@table @kbd
-@item C-x @key{SPC}
-@kindex C-x SPC
+@item C-x C-a C-b
+@kindex C-x C-a C-b
Set a breakpoint on the source line that point is on.
@end table
- @kbd{C-x @key{SPC}} (@code{gud-break}), when called in a source
+ @kbd{C-x C-a C-b} (@code{gud-break}), when called in a source
buffer, sets a debugger breakpoint on the current source line. This
-command is available only after starting GUD. If you call it in a
+command is available only after starting GUD@. If you call it in a
buffer that is not associated with any debugger subprocess, it signals
a error.
that makes sense.
Because @key{TAB} serves as a completion command, you can't use it to
-enter a tab as input to the program you are debugging with GDB.
+enter a tab as input to the program you are debugging with GDB@.
Instead, type @kbd{C-q @key{TAB}} to enter a tab.
@node GUD Customization
you are using DBX; @code{sdb-mode-hook}, if you are using SDB;
@code{xdb-mode-hook}, if you are using XDB; @code{perldb-mode-hook},
for Perl debugging mode; @code{pdb-mode-hook}, for PDB;
-@code{jdb-mode-hook}, for JDB. @xref{Hooks}.
+@code{jdb-mode-hook}, for JDB@. @xref{Hooks}.
The @code{gud-def} Lisp macro (@pxref{Defining Macros,,, elisp, the
Emacs Lisp Reference Manual}) provides a convenient way to define an
@findex load
@findex load-library
+@vindex load-prefer-newer
@cindex load path for Emacs Lisp
If an Emacs Lisp file is installed in the Emacs Lisp @dfn{load path}
(defined below), you can load it by typing @kbd{M-x load-library},
searches through each directory in the Emacs Lisp load path, trying to
find a file matching that library name. If the library name is
@samp{@var{foo}}, it tries looking for files named
-@file{@var{foo}.elc}, @file{@var{foo}.el}, and lastly just
-@file{@var{foo}}; the first one found is loaded. This command prefers
-@file{.elc} files over @file{.el} files because compiled files load
-and run faster. If it finds that @file{@var{lib}.el} is newer than
-@file{@var{lib}.elc}, it issues a warning, in case someone made
+@file{@var{foo}.elc}, @file{@var{foo}.el}, and @file{@var{foo}}. The
+default behaviour is to load the first file found. This command
+prefers @file{.elc} files over @file{.el} files because compiled files
+load and run faster. If it finds that @file{@var{lib}.el} is newer
+than @file{@var{lib}.elc}, it issues a warning, in case someone made
changes to the @file{.el} file and forgot to recompile it, but loads
the @file{.elc} file anyway. (Due to this behavior, you can save
unfinished edits to Emacs Lisp source files, and not recompile until
-your changes are ready for use.)
+your changes are ready for use.) If you set the option
+@code{load-prefer-newer} to a non-@code{nil} value, however, then
+rather than the procedure described above, Emacs loads whichever
+version of the file is newest.
Emacs Lisp programs usually load Emacs Lisp files using the
@code{load} function. This is similar to @code{load-library}, but is
@section Evaluating Emacs Lisp Expressions
@cindex Emacs Lisp mode
@cindex mode, Emacs Lisp
+@cindex evaluation, Emacs Lisp
@findex emacs-lisp-mode
Emacs Lisp mode is the major mode for editing Emacs Lisp. Its mode
HCoop / bpt / emacs.git / blobdiff