[hackers] [sbase] ed: use arg.h || Quentin Rameau

[git]

commit d1bef890ea45a8aa492d0a1914c02110f982da28
Author:     Quentin Rameau <quinq@fifth.space>
AuthorDate: Tue Dec 15 15:45:16 2015 +0100
Commit:     sin <s...@2f30.org>
CommitDate: Wed Dec 16 09:52:35 2015 +0000

    ed: use arg.h

diff --git a/ed.c b/ed.c
index 032bc78..bde2c55 100644
--- a/ed.c
+++ b/ed.c
@@ -13,6 +13,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "arg.h"
+
 #define REGEXSIZE  100
 #define LINESIZE    80
 #define NUMLINES    32
@@ -1332,27 +1334,20 @@ sighup(int dummy)
 int
 main(int argc, char *argv[])
 {
-       char *p;
+       ARGBEGIN {
+       case 'p':
+               prompt = EARGF(usage());
+               optprompt = 1;
+               break;
+       case 's':
+               optdiag = 0;
+               break;
+       default:
+               usage();
+       } ARGEND
 
-       while (*++argv) {
-               if (argv[0][0] != '-')
-                       break;
-               for (p = argv[0] + 1; *p; ++p) {
-                       switch (*p) {
-                       case 's':
-                               optdiag = 0;
-                               break;
-                       case 'p':
-                               if (!*++argv)
-                                       usage();
-                               prompt = *argv;
-                               optprompt = 1;
-                               break;
-                       default:
-                               usage();
-                       }
-               }
-       }
+       if (argc > 1)
+               usage();
 
        signal(SIGINT, sigintr);
        signal(SIGHUP, sighup);