Use pipe ("|") as a sed command field separator and allow slash ("/")

[bsdgames-darwin.git] / ppt / ppt.c

diff --git a/ppt/ppt.c b/ppt/ppt.c
index f94a9849d8e62f591dca4d8f4638b885429961f7..af0585cee7bf06eba9ed4ecb05b90f059f9caf3c 100644 (file)
--- a/ppt/ppt.c
+++ b/ppt/ppt.c
@@ -1,4 +1,4 @@
-/*     $NetBSD: ppt.c,v 1.7 1999/12/16 13:38:28 jsm Exp $      */
+/*     $NetBSD: ppt.c,v 1.14 2002/11/26 23:07:36 atatat Exp $  */
 
 /*
  * Copyright (c) 1988, 1993
@@ -43,38 +43,94 @@ __COPYRIGHT("@(#) Copyright (c) 1988, 1993\n\
 #if 0
 static char sccsid[] = "@(#)ppt.c      8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: ppt.c,v 1.7 1999/12/16 13:38:28 jsm Exp $");
+__RCSID("$NetBSD: ppt.c,v 1.14 2002/11/26 23:07:36 atatat Exp $");
 #endif
 #endif /* not lint */
 
+#include <err.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 
+#define        EDGE    "___________"
+
+       void    usage __P((void));
        int     main __P((int, char *[]));
 static void    putppt __P((int));
+       int     getppt __P((const char *));
+
+void
+usage(void)
+{
+       extern char *__progname;
+       fprintf(stderr, "usage: %s [-d] [string ...]\n", __progname);
+       exit(1);
+}
 
 int
 main(argc, argv)
        int argc;
        char **argv;
 {
-       int c;
-       char *p;
+       char *p, buf[132];
+       int c, start, neednl, dflag;
 
        /* Revoke setgid privileges */
-       setregid(getgid(), getgid());
-
-       (void) puts("___________");
-       if (argc > 1)
-               while ((p = *++argv) != NULL) {
-                       for (; *p; ++p)
-                               putppt((int)*p);
-                       if ((*(argv + 1)))
-                               putppt((int)' ');
+       setgid(getgid());
+
+       dflag = 0;
+       while ((c = getopt(argc, argv, "dh")) != -1)
+               switch(c) {
+               case 'd':
+                       dflag = 1;
+                       break;
+               case 'h':
+               case '?':
+               default:
+                       usage();
+               }
+       argc -= optind;
+       argv += optind;
+
+       if (dflag) {
+               if (argc > 0)
+                       usage();
+
+               start = 0;
+               neednl = 0;
+               while (fgets(buf, sizeof(buf), stdin) != NULL) {
+                       c = getppt(buf);
+                       if (c < 0) {
+                               if (start) {
+                                       /* lost sync? */
+                                       if (neednl)
+                                               putchar('\n');
+                                       exit(0);
+                               } else
+                                       continue;
+                       }
+                       start = 1;
+                       putchar(c);
+                       neednl = (c != '\n');
                }
-       else while ((c = getchar()) != EOF)
-               putppt(c);
-       (void) puts("___________");
+               if (!feof(stdin))
+                       err(1, "fgets");
+               if (neednl)
+                       putchar('\n');
+       } else {
+               (void) puts(EDGE);
+               if (argc > 0)
+                       while ((p = *argv++)) {
+                               for (; *p; ++p)
+                                       putppt((int)*p);
+                               if ((*(argv)))
+                                       putppt((int)' ');
+                       }
+               else while ((c = getchar()) != EOF)
+                       putppt(c);
+               (void) puts(EDGE);
+       }
        exit(0);
 }
 
@@ -96,3 +152,33 @@ putppt(c)
        (void) putchar('|');
        (void) putchar('\n');
 }
+
+int
+getppt(const char *buf)
+{
+       const char *p = strchr(buf, '.');
+       int c;
+
+       if (p == NULL)
+               return (-1);
+
+       c = 0;
+       if (p[ 3] != ' ')
+               c |= 0001;
+       if (p[ 2] != ' ')
+               c |= 0002;
+       if (p[ 1] != ' ')
+               c |= 0004;
+       if (p[-1] != ' ')
+               c |= 0010;
+       if (p[-2] != ' ')
+               c |= 0020;
+       if (p[-3] != ' ')
+               c |= 0040;
+       if (p[-4] != ' ')
+               c |= 0100;
+       if (p[-5] != ' ')
+               c |= 0200;
+
+       return (c);
+}