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comparison 3rdparty/packages/ed/join.c @ 994:bef1844de0dc

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The ED editor ported from Minix
author roug
date Sun, 23 Feb 2003 21:11:37 +0000
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993:57b5e715a417 994:bef1844de0dc
1 /* join.c */
2 #include <stdio.h>
3 #include "tools.h"
4 #include "ed.h"
5
6 extern int fchanged;
7
8 int join(first, last)
9 int first, last;
10 {
11 char buf[MAXLINE];
12 char *cp = buf, *str;
13 int num;
14
15 if (first <= 0 || first > last || last > lastln) return(ERR);
16 if (first == last) {
17 curln = first;
18 return 0;
19 }
20 for (num = first; num <= last; num++) {
21 str = gettxt(num);
22
23 while (*str != NL && cp < buf + MAXLINE - 1) *cp++ = *str++;
24
25 if (cp == buf + MAXLINE - 1) {
26 printf("line too long\n");
27 return(ERR);
28 }
29 }
30 *cp++ = NL;
31 *cp = EOS;
32 del(first, last);
33 curln = first - 1;
34 ins(buf);
35 fchanged = TRUE;
36 return 0;
37 }
38