X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/1d44267275efdcee3c3584eaa79baccad54266b3..83a119f8d892a790b25bd0d856df82fb25b0ba72:/src/emacs.c
diff --git a/src/emacs.c b/src/emacs.c
index edf98d8cdb..dc4c23b399 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -1,7 +1,7 @@
/* Fully extensible Emacs, running on Unix, intended for GNU.
-Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2013 Free Software
-Foundation, Inc.
+Copyright (C) 1985-1987, 1993-1995, 1997-1999, 2001-2013
+ Free Software Foundation, Inc.
This file is part of GNU Emacs.
@@ -28,7 +28,6 @@ along with GNU Emacs. If not, see . */
#include
#include
-#include
#include "lisp.h"
@@ -202,10 +201,10 @@ int initial_argc;
static void sort_args (int argc, char **argv);
static void syms_of_emacs (void);
-/* MSVC needs each string be shorter than 2048 bytes, so the usage
+/* C89 needs each string be at most 509 characters, so the usage
strings below are split to not overflow this limit. */
-#define USAGE1 "\
-Usage: %s [OPTION-OR-FILENAME]...\n\
+static char const *const usage_message[] =
+ { "\
\n\
Run Emacs, the extensible, customizable, self-documenting real-time\n\
display editor. The recommended way to start Emacs for normal editing\n\
@@ -216,11 +215,15 @@ read the main documentation for these command-line arguments.\n\
\n\
Initialization options:\n\
\n\
+",
+ "\
--batch do not do interactive display; implies -q\n\
--chdir DIR change to directory DIR\n\
--daemon start a server in the background\n\
--debug-init enable Emacs Lisp debugger for init file\n\
--display, -d DISPLAY use X server DISPLAY\n\
+",
+ "\
--no-desktop do not load a saved desktop\n\
--no-init-file, -q load neither ~/.emacs nor default.el\n\
--no-shared-memory, -nl do not use shared memory\n\
@@ -228,14 +231,16 @@ Initialization options:\n\
--no-site-lisp, -nsl do not add site-lisp directories to load-path\n\
--no-splash do not display a splash screen on startup\n\
--no-window-system, -nw do not communicate with X, ignoring $DISPLAY\n\
+",
+ "\
--quick, -Q equivalent to:\n\
-q --no-site-file --no-site-lisp --no-splash\n\
--script FILE run FILE as an Emacs Lisp script\n\
--terminal, -t DEVICE use DEVICE for terminal I/O\n\
--user, -u USER load ~USER/.emacs instead of your own\n\
-\n%s"
-
-#define USAGE2 "\
+\n\
+",
+ "\
Action options:\n\
\n\
FILE visit FILE using find-file\n\
@@ -244,6 +249,8 @@ FILE visit FILE using find-file\n\
--directory, -L DIR add DIR to variable load-path\n\
--eval EXPR evaluate Emacs Lisp expression EXPR\n\
--execute EXPR evaluate Emacs Lisp expression EXPR\n\
+",
+ "\
--file FILE visit FILE using find-file\n\
--find-file FILE visit FILE using find-file\n\
--funcall, -f FUNC call Emacs Lisp function FUNC with no arguments\n\
@@ -251,9 +258,9 @@ FILE visit FILE using find-file\n\
--kill exit without asking for confirmation\n\
--load, -l FILE load Emacs Lisp FILE using the load function\n\
--visit FILE visit FILE using find-file\n\
-\n"
-
-#define USAGE3 "\
+\n\
+",
+ "\
Display options:\n\
\n\
--background-color, -bg COLOR window background color\n\
@@ -261,6 +268,8 @@ Display options:\n\
used for debugging Emacs\n\
--border-color, -bd COLOR main border color\n\
--border-width, -bw WIDTH width of main border\n\
+",
+ "\
--color, --color=MODE override color mode for character terminals;\n\
MODE defaults to `auto', and\n\
can also be `never', `always',\n\
@@ -268,17 +277,23 @@ Display options:\n\
--cursor-color, -cr COLOR color of the Emacs cursor indicating point\n\
--font, -fn FONT default font; must be fixed-width\n\
--foreground-color, -fg COLOR window foreground color\n\
+",
+ "\
--fullheight, -fh make the first frame high as the screen\n\
--fullscreen, -fs make the first frame fullscreen\n\
--fullwidth, -fw make the first frame wide as the screen\n\
--maximized, -mm make the first frame maximized\n\
--geometry, -g GEOMETRY window geometry\n\
+",
+ "\
--no-bitmap-icon, -nbi do not use picture of gnu for Emacs icon\n\
--iconic start Emacs in iconified state\n\
--internal-border, -ib WIDTH width between text and main border\n\
--line-spacing, -lsp PIXELS additional space to put between lines\n\
--mouse-color, -ms COLOR mouse cursor color in Emacs window\n\
--name NAME title for initial Emacs frame\n\
+",
+ "\
--no-blinking-cursor, -nbc disable blinking cursor\n\
--reverse-video, -r, -rv switch foreground and background\n\
--title, -T TITLE title for initial Emacs frame\n\
@@ -287,18 +302,19 @@ Display options:\n\
--parent-id XID set parent window\n\
--help display this help and exit\n\
--version output version information and exit\n\
-\n"
-
-#define USAGE4 "\
+\n\
+",
+ "\
You can generally also specify long option names with a single -; for\n\
example, -batch as well as --batch. You can use any unambiguous\n\
abbreviation for a --option.\n\
\n\
Various environment variables and window system resources also affect\n\
-Emacs' operation. See the main documentation.\n\
+the operation of Emacs. See the main documentation.\n\
\n\
Report bugs to bug-gnu-emacs@gnu.org. First, please see the Bugs\n\
section of the Emacs manual or the file BUGS.\n"
+ };
/* True if handling a fatal error already. */
@@ -501,8 +517,7 @@ init_cmdargs (int argc, char **argv, int skip_args)
They are decoded in the function command-line after we know
locale-coding-system. */
Vcommand_line_args
- = Fcons (make_unibyte_string (argv[i], strlen (argv[i])),
- Vcommand_line_args);
+ = Fcons (build_unibyte_string (argv[i]), Vcommand_line_args);
}
unbind_to (count, Qnil);
@@ -646,9 +661,7 @@ close_output_streams (void)
{
if (close_stream (stdout) != 0)
{
- fprintf (stderr, "Write error to standard output: %s\n",
- strerror (errno));
- fflush (stderr);
+ emacs_perror ("Write error to standard output");
_exit (EXIT_FAILURE);
}
@@ -683,7 +696,8 @@ main (int argc, char **argv)
#endif
#ifdef G_SLICE_ALWAYS_MALLOC
- /* This is used by the Cygwin build. */
+ /* This is used by the Cygwin build. It's not needed starting with
+ cygwin-1.7.24, but it doesn't do any harm. */
xputenv ("G_SLICE=always-malloc");
#endif
@@ -789,7 +803,7 @@ main (int argc, char **argv)
execvp (argv[0], argv);
/* If the exec fails, try to dump anyway. */
- perror ("execvp");
+ emacs_perror (argv[0]);
}
#endif /* HAVE_PERSONALITY_LINUX32 */
@@ -937,9 +951,10 @@ main (int argc, char **argv)
/* Handle the --help option, which gives a usage message. */
if (argmatch (argv, argc, "-help", "--help", 3, NULL, &skip_args))
{
- printf (USAGE1, argv[0], USAGE2);
- printf (USAGE3);
- printf (USAGE4);
+ int i;
+ printf ("Usage: %s [OPTION-OR-FILENAME]...\n", argv[0]);
+ for (i = 0; i < sizeof usage_message / sizeof *usage_message; i++)
+ fputs (usage_message[i], stdout);
exit (0);
}
@@ -970,7 +985,7 @@ main (int argc, char **argv)
use a pipe for synchronization. The parent waits for the child
to close its end of the pipe (using `daemon-initialized')
before exiting. */
- if (pipe2 (daemon_pipe, O_CLOEXEC) != 0)
+ if (emacs_pipe (daemon_pipe) != 0)
{
fprintf (stderr, "Cannot pipe!\n");
exit (1);
@@ -995,7 +1010,7 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
char buf[1];
/* Close unused writing end of the pipe. */
- close (daemon_pipe[1]);
+ emacs_close (daemon_pipe[1]);
/* Just wait for the child to close its end of the pipe. */
do
@@ -1015,13 +1030,13 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
exit (1);
}
- close (daemon_pipe[0]);
+ emacs_close (daemon_pipe[0]);
exit (0);
}
if (f < 0)
{
- fprintf (stderr, "Cannot fork!\n");
- exit (1);
+ emacs_perror ("fork");
+ exit (EXIT_CANCELED);
}
#ifdef DAEMON_MUST_EXEC
@@ -1038,14 +1053,14 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
if (! (0 <= fdStrlen && fdStrlen < sizeof fdStr))
{
fprintf (stderr, "daemon: child name too long\n");
- exit (1);
+ exit (EXIT_CANNOT_INVOKE);
}
argv[skip_args] = fdStr;
execvp (argv[0], argv);
- fprintf (stderr, "emacs daemon: exec failed: %d\n", errno);
- exit (1);
+ emacs_perror (argv[0]);
+ exit (errno == ENOENT ? EXIT_ENOENT : EXIT_CANNOT_INVOKE);
}
/* In exec'd: parse special dname into pipe and name info. */
@@ -1053,7 +1068,7 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
|| strlen (dname_arg) < 1 || strlen (dname_arg) > 70)
{
fprintf (stderr, "emacs daemon: daemon name absent or too long\n");
- exit (1);
+ exit (EXIT_CANNOT_INVOKE);
}
dname_arg2[0] = '\0';
sscanf (dname_arg, "\n%d,%d\n%s", &(daemon_pipe[0]), &(daemon_pipe[1]),
@@ -1065,7 +1080,7 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
if (dname_arg)
daemon_name = xstrdup (dname_arg);
/* Close unused reading end of the pipe. */
- close (daemon_pipe[0]);
+ emacs_close (daemon_pipe[0]);
setsid ();
#else /* DOS_NT */
@@ -1392,6 +1407,10 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
syms_of_xml ();
#endif
+#ifdef HAVE_ZLIB
+ syms_of_decompress ();
+#endif
+
syms_of_menu ();
#ifdef HAVE_NTGUI
@@ -1487,12 +1506,11 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
char *file;
/* Handle -l loadup, args passed by Makefile. */
if (argmatch (argv, argc, "-l", "--load", 3, &file, &skip_args))
- Vtop_level = Fcons (intern_c_string ("load"),
- Fcons (build_string (file), Qnil));
+ Vtop_level = list2 (intern_c_string ("load"), build_string (file));
/* Unless next switch is -nl, load "loadup.el" first thing. */
if (! no_loadup)
- Vtop_level = Fcons (intern_c_string ("load"),
- Fcons (build_string ("loadup.el"), Qnil));
+ Vtop_level = list2 (intern_c_string ("load"),
+ build_string ("loadup.el"));
}
if (initialized)
@@ -1916,8 +1934,8 @@ shut_down_emacs (int sig, Lisp_Object stuff)
char buf[sizeof format - 2 + INT_STRLEN_BOUND (int)];
int buflen = sprintf (buf, format, sig);
char const *sig_desc = safe_strsignal (sig);
- ignore_value (write (STDERR_FILENO, buf, buflen));
- ignore_value (write (STDERR_FILENO, sig_desc, strlen (sig_desc)));
+ emacs_write (STDERR_FILENO, buf, buflen);
+ emacs_write (STDERR_FILENO, sig_desc, strlen (sig_desc));
}
}
}
@@ -2239,7 +2257,7 @@ from the parent process and its tty file descriptors. */)
err |= dup2 (nfd, 0) < 0;
err |= dup2 (nfd, 1) < 0;
err |= dup2 (nfd, 2) < 0;
- err |= close (nfd) != 0;
+ err |= emacs_close (nfd) != 0;
/* Closing the pipe will notify the parent that it can exit.
FIXME: In case some other process inherited the pipe, closing it here
@@ -2249,7 +2267,7 @@ from the parent process and its tty file descriptors. */)
call-process to make sure the pipe is never inherited by
subprocesses. */
err |= write (daemon_pipe[1], "\n", 1) < 0;
- err |= close (daemon_pipe[1]) != 0;
+ err |= emacs_close (daemon_pipe[1]) != 0;
/* Set it to an invalid value so we know we've already run this function. */
daemon_pipe[1] = -1;