[Emacs-diffs] Changes to emacs/lib-src/hexl.c [lexbind]

[Miles Bader]

Index: emacs/lib-src/hexl.c
diff -c /dev/null emacs/lib-src/hexl.c:1.13.4.1
*** /dev/null   Tue Oct 14 19:59:24 2003
--- emacs/lib-src/hexl.c        Tue Oct 14 19:59:14 2003
***************
*** 0 ****
--- 1,284 ----
+ /* Convert files for Emacs Hexl mode.
+    Copyright (C) 1989 Free Software Foundation, Inc
+ 
+ This file is not considered part of GNU Emacs.
+ 
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+ 
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 
+ #ifdef HAVE_CONFIG_H
+ #include <config.h>
+ #endif
+ 
+ #include <stdio.h>
+ #include <ctype.h>
+ #ifdef DOS_NT
+ #include <fcntl.h>
+ #if __DJGPP__ >= 2
+ #include <io.h>
+ #endif
+ #endif
+ #ifdef WINDOWSNT
+ #include <io.h>
+ #endif
+ 
+ #define DEFAULT_GROUPING      0x01
+ #define DEFAULT_BASE          16
+ 
+ #undef TRUE
+ #undef FALSE
+ #define TRUE  (1)
+ #define FALSE (0)
+ 
+ int base = DEFAULT_BASE, un_flag = FALSE, iso_flag = FALSE, endian = 1;
+ int group_by = DEFAULT_GROUPING;
+ char *progname;
+ 
+ void usage();
+ 
+ int
+ main (argc, argv)
+      int argc;
+      char *argv[];
+ {
+   register long address;
+   char string[18];
+   FILE *fp;
+ 
+   progname = *argv++; --argc;
+ 
+   /*
+    ** -hex            hex dump
+    ** -oct            Octal dump
+    ** -group-by-8-bits
+    ** -group-by-16-bits
+    ** -group-by-32-bits
+    ** -group-by-64-bits
+    ** -iso            iso character set.
+    ** -big-endian     Big Endian
+    ** -little-endian  Little Endian
+    ** -un || -de      from hexl format to binary.
+    ** --              End switch list.
+    ** <filename>      dump filename
+    ** -               (as filename == stdin)
+    */
+ 
+   while (*argv && *argv[0] == '-' && (*argv)[1])
+     {
+       /* A switch! */
+       if (!strcmp (*argv, "--"))
+       {
+         --argc; argv++;
+         break;
+       }
+       else if (!strcmp (*argv, "-un") || !strcmp (*argv, "-de"))
+       {
+         un_flag = TRUE;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-hex"))
+       {
+         base = 16;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-iso"))
+       {
+         iso_flag = TRUE;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-oct"))
+       {
+         base = 8;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-big-endian"))
+       {
+         endian = 1;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-little-endian"))
+       {
+         endian = 0;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-group-by-8-bits"))
+       {
+         group_by = 0x00;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-group-by-16-bits"))
+       {
+         group_by = 0x01;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-group-by-32-bits"))
+       {
+         group_by = 0x03;
+         --argc; argv++;
+       }
+       else if (!strcmp (*argv, "-group-by-64-bits"))
+       {
+         group_by = 0x07;
+         endian = 0;
+         --argc; argv++;
+       }
+       else
+       {
+         fprintf (stderr, "%s: invalid switch: \"%s\".\n", progname,
+                  *argv);
+         usage ();
+       }
+     }
+ 
+   do
+     {
+       if (*argv == NULL)
+       fp = stdin;
+       else
+       {
+         char *filename = *argv++;
+ 
+         if (!strcmp (filename, "-"))
+           fp = stdin;
+         else if ((fp = fopen (filename, "r")) == NULL)
+           {
+             perror (filename);
+             continue;
+           }
+       }
+ 
+       if (un_flag)
+       {
+         char buf[18];
+ 
+ #ifdef DOS_NT
+ #if (__DJGPP__ >= 2) || (defined WINDOWSNT)
+           if (!isatty (fileno (stdout)))
+           setmode (fileno (stdout), O_BINARY);
+ #else
+         (stdout)->_flag &= ~_IOTEXT; /* print binary */
+         _setmode (fileno (stdout), O_BINARY);
+ #endif
+ #endif
+         for (;;)
+           {
+             register int i, c, d;
+ 
+ #define hexchar(x) (isdigit (x) ? x - '0' : x - 'a' + 10)
+ 
+             fread (buf, 1, 10, fp); /* skip 10 bytes */
+ 
+             for (i=0; i < 16; ++i)
+               {
+                 if ((c = getc (fp)) == ' ' || c == EOF)
+                   break;
+ 
+                 d = getc (fp);
+                 c = hexchar (c) * 0x10 + hexchar (d);
+                 putchar (c);
+ 
+                 if ((i&group_by) == group_by)
+                   getc (fp);
+               }
+ 
+             if (c == ' ')
+               {
+                 while ((c = getc (fp)) != '\n' && c != EOF)
+                   ;
+ 
+                 if (c == EOF)
+                   break;
+               }
+             else
+               {
+                 if (i < 16)
+                   break;
+ 
+                 fread (buf, 1, 18, fp); /* skip 18 bytes */
+               }
+           }
+       }
+       else
+       {
+ #ifdef DOS_NT
+ #if (__DJGPP__ >= 2) || (defined WINDOWSNT)
+           if (!isatty (fileno (fp)))
+           setmode (fileno (fp), O_BINARY);
+ #else
+         (fp)->_flag &= ~_IOTEXT; /* read binary */
+         _setmode (fileno (fp), O_BINARY);
+ #endif
+ #endif
+         address = 0;
+         string[0] = ' ';
+         string[17] = '\0';
+         for (;;)
+           {
+             register int i, c;
+ 
+             for (i=0; i < 16; ++i)
+               {
+                 if ((c = getc (fp)) == EOF)
+                   {
+                     if (!i)
+                       break;
+ 
+                     fputs ("  ", stdout);
+                     string[i+1] = '\0';
+                   }
+                 else
+                   {
+                     if (!i)
+                       printf ("%08lx: ", address);
+ 
+                     if (iso_flag)
+                       string[i+1] =
+                         (c < 0x20 || (c >= 0x7F && c < 0xa0)) ? '.' :c;
+                     else
+                       string[i+1] = (c < 0x20 || c >= 0x7F) ? '.' : c;
+ 
+                     printf ("%02x", c);
+                   }
+ 
+                 if ((i&group_by) == group_by)
+                   putchar (' ');
+               }
+ 
+             if (i)
+               puts (string);
+ 
+             if (c == EOF)
+               break;
+ 
+             address += 0x10;
+ 
+           }
+       }
+ 
+       if (fp != stdin)
+       fclose (fp);
+ 
+     } while (*argv != NULL);
+   return 0;
+ }
+ 
+ void
+ usage ()
+ {
+   fprintf (stderr, "usage: %s [-de] [-iso]\n", progname);
+   exit (1);
+ }
+ 
+ /* arch-tag: 20e04fb7-926e-4e48-be86-64fe869ecdaa
+    (do not change this comment) */