1 #include <stdio.h>
2 #include <stdlib.h>
3
4 #define PAGELEN 24
5 #define LINELEN 512
6
7 int see_more(FILE*);
8 void do_more(FILE*);
9
10 int main(int ac, char* av[])
11 {
12 FILE *fp;
13 if(ac==1)
14 do_more(stdin);
15 // printf("%s","Please input file name.\n");
16 else
17 {
18 while(--ac)
19 if((fp=fopen(*++av,"r"))!=NULL)
20 {
21 do_more(fp);
22 fclose(fp);
23 }
24 }
25
26
27 }
28
29 void do_more(FILE* fp)
30 {
31 int num_of_lines=0;
32 char line[LINELEN];
33 int reply;
34 // int see_more();
35 FILE* fp_tty;
36 fp_tty=fopen("/dev/tty","r");
37 if(fp_tty==NULL) exit(1);
38 while(fgets(line,LINELEN,fp))
39 {
40 if(num_of_lines==PAGELEN)
41 {
42 reply=see_more(fp_tty);
43 if(reply==0)
44 break;
45 num_of_lines-=reply;
46 }
47 if(fputs(line,stdout)==EOF)
48 exit(1);
49 num_of_lines++;
50 }
51
52 }
53
54 int see_more(FILE* cmd)
55 {
56 int c;
57 //printf("\033[7m more? \033[m");
58 printf("\033[32;49;1m [more?] \033[39;49;0m");
59 //033[32;49;1m [MORE?] \033[39;49;0m
60 while((c=getc(cmd))!=EOF)
61 {
62 if(c=='q')
63 return 0;
64
65 if(c=='\n')
66 return 1;
67
68 if(c==' ')
69 return PAGELEN;
70 }
71 }
