| 1 | /* |
| 2 | * Print horizontally as possible, thus saving paper |
| 3 | */ |
| 4 | #include <stdio.h> |
| 5 | int tab[8] = {8,7,6,5,4,3,2,1}; |
| 6 | int next; /*next output position on line*/ |
| 7 | int slen; /*length at start of line*/ |
| 8 | int alen; /*actual length*/ |
| 9 | int elen; /*length on current line*/ |
| 10 | char buf[256]; |
| 11 | getit() |
| 12 | { register int i; |
| 13 | register c; |
| 14 | slen=alen=elen=0; |
| 15 | for(i=0;;i++) |
| 16 | { buf[i]=c=getchar(); |
| 17 | switch(c) |
| 18 | { |
| 19 | case '\n': if(i==0) continue; |
| 20 | case EOF: |
| 21 | alen=i; |
| 22 | return(i); |
| 23 | case '\t': |
| 24 | elen+= tab[(next+elen)%8]; |
| 25 | slen += tab[slen%8]; |
| 26 | continue; |
| 27 | default: |
| 28 | elen++; |
| 29 | slen++; |
| 30 | continue; |
| 31 | } |
| 32 | } |
| 33 | } |
| 34 | putit(ntab) |
| 35 | { register int i; |
| 36 | for(i=0;i<ntab;i++) putchar('\t'); |
| 37 | for(i=0;i<alen;i++) putchar(buf[i]); |
| 38 | } |
| 39 | clean() |
| 40 | { |
| 41 | putchar('\n'); |
| 42 | } |
| 43 | main(argc,argv) char *argv[]; |
| 44 | { int len,ntab; |
| 45 | int i; |
| 46 | len=80; |
| 47 | if(argc>1) |
| 48 | { i=atoi(argv[1]); |
| 49 | if(i<0) i= -i; |
| 50 | len=(i<1?1:i); |
| 51 | } |
| 52 | else len=80; |
| 53 | for(;;) |
| 54 | { if(next==0) ntab=0; |
| 55 | else if(tab[next%8]<1) |
| 56 | { ntab=2; |
| 57 | next+= tab[next%8]; |
| 58 | next += tab[next%8]; |
| 59 | } |
| 60 | else |
| 61 | { ntab=1; |
| 62 | next += tab[next%8]; |
| 63 | } |
| 64 | if(getit()<=0) {clean(); exit(0);} |
| 65 | if(elen+next>=len) |
| 66 | { clean(); |
| 67 | next=slen; |
| 68 | putit(0); |
| 69 | } |
| 70 | else |
| 71 | { next += elen; |
| 72 | putit(ntab); |
| 73 | } |
| 74 | } |
| 75 | } |