| 1 | static char *sccsid = "@(#)pr.c 4.4 (Berkeley) %G%"; |
| 2 | |
| 3 | /* |
| 4 | * print file with headings |
| 5 | * 2+head+2+page[56]+5 |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | #include <signal.h> |
| 10 | #include <sys/types.h> |
| 11 | #include <sys/stat.h> |
| 12 | |
| 13 | /* Making putcp a macro sped things up by 14%. */ |
| 14 | #define putcp(c) if (page >= fpage) putchar(c) |
| 15 | |
| 16 | int ncol = 1; |
| 17 | char *header; |
| 18 | int col; |
| 19 | int icol; |
| 20 | FILE *file; |
| 21 | char *bufp; |
| 22 | #define BUFS 6720 |
| 23 | char buffer[BUFS]; /* for multi-column output */ |
| 24 | char obuf[BUFSIZ]; |
| 25 | #define FF 014 |
| 26 | int line; |
| 27 | char *colp[72]; |
| 28 | int nofile; |
| 29 | char isclosed[10]; |
| 30 | FILE *ifile[10]; |
| 31 | char **lastarg; |
| 32 | int peekc; |
| 33 | int fpage; |
| 34 | int page; |
| 35 | int colw; |
| 36 | int nspace; |
| 37 | int width = 72; |
| 38 | int length = 66; |
| 39 | int plength = 61; |
| 40 | int margin = 10; |
| 41 | int ntflg; |
| 42 | int fflg; |
| 43 | int mflg; |
| 44 | int tabc; |
| 45 | char *tty; |
| 46 | int mode; |
| 47 | char *ttyname(); |
| 48 | char *ctime(); |
| 49 | |
| 50 | main(argc, argv) |
| 51 | char **argv; |
| 52 | { |
| 53 | int nfdone; |
| 54 | int onintr(); |
| 55 | |
| 56 | setbuf(stdout, obuf); |
| 57 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
| 58 | signal(SIGINT, onintr); |
| 59 | lastarg = &argv[argc-1]; |
| 60 | fixtty(); |
| 61 | for (nfdone=0; argc>1; argc--) { |
| 62 | argv++; |
| 63 | if (**argv == '-') { |
| 64 | switch (*++*argv) { |
| 65 | case 'h': /* define page header */ |
| 66 | if (argc>=2) { |
| 67 | header = *++argv; |
| 68 | argc--; |
| 69 | } |
| 70 | continue; |
| 71 | |
| 72 | case 't': /* don't print page headers */ |
| 73 | ntflg++; |
| 74 | continue; |
| 75 | |
| 76 | case 'f': /* use form feeds */ |
| 77 | fflg++; |
| 78 | plength = 60; |
| 79 | continue; |
| 80 | |
| 81 | case 'l': /* length of page */ |
| 82 | length = atoi(++*argv); |
| 83 | continue; |
| 84 | |
| 85 | case 'w': /* width of page */ |
| 86 | width = atoi(++*argv); |
| 87 | continue; |
| 88 | |
| 89 | case 's': /* col separator */ |
| 90 | if (*++*argv) |
| 91 | tabc = **argv; |
| 92 | else |
| 93 | tabc = '\t'; |
| 94 | continue; |
| 95 | |
| 96 | case 'm': /* all files at once */ |
| 97 | mflg++; |
| 98 | continue; |
| 99 | |
| 100 | default: |
| 101 | if (numeric(*argv)) { /* # of cols */ |
| 102 | if ((ncol = atoi(*argv)) == 0) { |
| 103 | fprintf(stderr, "can't print 0 cols, using 1 instead.\n"); |
| 104 | ncol = 1; |
| 105 | } |
| 106 | } else { |
| 107 | fprintf(stderr, "pr: bad key %s\n", *argv); |
| 108 | exit(1); |
| 109 | } |
| 110 | continue; |
| 111 | } |
| 112 | } else if (**argv == '+') { /* start at page ++*argv */ |
| 113 | fpage = atoi(++*argv); |
| 114 | } else { |
| 115 | print(*argv, argv); |
| 116 | nfdone++; |
| 117 | if (mflg) |
| 118 | break; |
| 119 | } |
| 120 | } |
| 121 | if (nfdone==0) |
| 122 | print((char *)0, (char **)0); |
| 123 | done(); |
| 124 | } |
| 125 | |
| 126 | done() |
| 127 | { |
| 128 | |
| 129 | if (tty) |
| 130 | chmod(tty, mode); |
| 131 | exit(0); |
| 132 | } |
| 133 | |
| 134 | /* numeric -- returns 1 if str is numeric, elsewise 0 */ |
| 135 | numeric(str) |
| 136 | char *str; |
| 137 | { |
| 138 | for (; *str ; str++) { |
| 139 | if (*str > '9' || *str < '0') { |
| 140 | return(0); |
| 141 | } |
| 142 | } |
| 143 | return(1); |
| 144 | } |
| 145 | |
| 146 | onintr() |
| 147 | { |
| 148 | |
| 149 | if (tty) |
| 150 | chmod(tty, mode); |
| 151 | _exit(1); |
| 152 | } |
| 153 | |
| 154 | fixtty() |
| 155 | { |
| 156 | struct stat sbuf; |
| 157 | |
| 158 | tty = ttyname(1); |
| 159 | if (tty == 0) |
| 160 | return; |
| 161 | stat(tty, &sbuf); |
| 162 | mode = sbuf.st_mode&0777; |
| 163 | chmod(tty, 0600); |
| 164 | } |
| 165 | |
| 166 | /* print -- print file */ |
| 167 | print(fp, argp) |
| 168 | char *fp; |
| 169 | char **argp; |
| 170 | { |
| 171 | extern char *sprintf(); |
| 172 | struct stat sbuf; |
| 173 | register sncol; |
| 174 | register char *sheader; |
| 175 | register char *cbuf; |
| 176 | char linebuf[150], *cp; |
| 177 | |
| 178 | if (ntflg) |
| 179 | margin = 0; |
| 180 | else |
| 181 | margin = 10; |
| 182 | if (length <= margin) |
| 183 | length = 66; |
| 184 | if (width <= 0) |
| 185 | width = 72; |
| 186 | if (ncol>72 || ncol>width) { |
| 187 | fprintf(stderr, "pr: No room for columns.\n"); |
| 188 | done(); |
| 189 | } |
| 190 | if (mflg) { |
| 191 | mopen(argp); |
| 192 | ncol = nofile; |
| 193 | } |
| 194 | colw = width/(ncol==0? 1 : ncol); |
| 195 | sncol = ncol; |
| 196 | sheader = header; |
| 197 | plength = length-5; |
| 198 | if (ntflg) |
| 199 | plength = length; |
| 200 | if (--ncol<0) |
| 201 | ncol = 0; |
| 202 | if (mflg) |
| 203 | fp = 0; |
| 204 | if (fp) { |
| 205 | if((file=fopen(fp, "r"))==NULL) { |
| 206 | if (tty==NULL) |
| 207 | perror(fp); |
| 208 | ncol = sncol; |
| 209 | header = sheader; |
| 210 | return; |
| 211 | } |
| 212 | stat(fp, &sbuf); |
| 213 | } else { |
| 214 | file = stdin; |
| 215 | time(&sbuf.st_mtime); |
| 216 | } |
| 217 | if (header == 0) |
| 218 | header = fp?fp:""; |
| 219 | cbuf = ctime(&sbuf.st_mtime); |
| 220 | cbuf[16] = '\0'; |
| 221 | cbuf[24] = '\0'; |
| 222 | page = 1; |
| 223 | icol = 0; |
| 224 | colp[ncol] = bufp = buffer; |
| 225 | if (mflg==0) |
| 226 | nexbuf(); |
| 227 | while (mflg&&nofile || (!mflg)&&tpgetc(ncol)>0) { |
| 228 | if (mflg==0) { |
| 229 | colp[ncol]--; |
| 230 | if (colp[ncol] < buffer) |
| 231 | colp[ncol] = &buffer[BUFS]; |
| 232 | } |
| 233 | line = 0; |
| 234 | if (ntflg==0) { |
| 235 | if (fflg) { |
| 236 | /* Assume a ff takes two blank lines at the |
| 237 | top of the page. */ |
| 238 | line = 2; |
| 239 | sprintf(linebuf, "%s %s %s Page %d\n\n\n", |
| 240 | cbuf+4, cbuf+20, header, page); |
| 241 | } else |
| 242 | sprintf(linebuf, "\n\n%s %s %s Page %d\n\n\n", |
| 243 | cbuf+4, cbuf+20, header, page); |
| 244 | for(cp=linebuf;*cp;) put(*cp++); |
| 245 | } |
| 246 | putpage(); |
| 247 | if (ntflg==0) { |
| 248 | if (fflg) |
| 249 | put('\f'); |
| 250 | else |
| 251 | while(line<length) |
| 252 | put('\n'); |
| 253 | } |
| 254 | page++; |
| 255 | } |
| 256 | fclose(file); |
| 257 | ncol = sncol; |
| 258 | header = sheader; |
| 259 | } |
| 260 | |
| 261 | mopen(ap) |
| 262 | char **ap; |
| 263 | { |
| 264 | register char **p, *p1; |
| 265 | |
| 266 | p = ap; |
| 267 | while((p1 = *p) && p++ <= lastarg) { |
| 268 | if((ifile[nofile]=fopen(p1, "r")) == NULL){ |
| 269 | isclosed[nofile] = 1; |
| 270 | nofile--; |
| 271 | } |
| 272 | else |
| 273 | isclosed[nofile] = 0; |
| 274 | if(++nofile>=10) { |
| 275 | fprintf(stderr, "pr: Too many args\n"); |
| 276 | done(); |
| 277 | } |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | putpage() |
| 282 | { |
| 283 | register int lastcol, i, c; |
| 284 | int j; |
| 285 | |
| 286 | if (ncol==0) { |
| 287 | while (line<plength) { |
| 288 | while((c = tpgetc(0)) && c!='\n' && c!=FF) |
| 289 | putcp(c); |
| 290 | if (c==0) break; |
| 291 | putcp('\n'); |
| 292 | line++; |
| 293 | if (c==FF) |
| 294 | break; |
| 295 | } |
| 296 | return; |
| 297 | } |
| 298 | colp[0] = colp[ncol]; |
| 299 | if (mflg==0) for (i=1; i<=ncol; i++) { |
| 300 | colp[i] = colp[i-1]; |
| 301 | for (j = margin; j<length; j++) |
| 302 | while((c=tpgetc(i))!='\n') |
| 303 | if (c==0) |
| 304 | break; |
| 305 | } |
| 306 | while (line<plength) { |
| 307 | lastcol = colw; |
| 308 | for (i=0; i<ncol; i++) { |
| 309 | while ((c=pgetc(i)) && c!='\n') |
| 310 | if (col<lastcol || tabc!=0) |
| 311 | put(c); |
| 312 | if (c==0) |
| 313 | continue; |
| 314 | if (tabc) |
| 315 | put(tabc); |
| 316 | else while (col<lastcol) |
| 317 | put(' '); |
| 318 | lastcol += colw; |
| 319 | } |
| 320 | while ((c = pgetc(ncol)) && c!='\n') |
| 321 | put(c); |
| 322 | put('\n'); |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | nexbuf() |
| 327 | { |
| 328 | register int n; |
| 329 | register char *rbufp; |
| 330 | |
| 331 | rbufp = bufp; |
| 332 | n = &buffer[BUFS] - rbufp; |
| 333 | if (n>512) |
| 334 | n = 512; |
| 335 | if((n=fread(rbufp,1,n,file)) <= 0){ |
| 336 | fclose(file); |
| 337 | *rbufp = 0376; |
| 338 | } |
| 339 | else { |
| 340 | rbufp += n; |
| 341 | if (rbufp >= &buffer[BUFS]) |
| 342 | rbufp = buffer; |
| 343 | *rbufp = 0375; |
| 344 | } |
| 345 | bufp = rbufp; |
| 346 | } |
| 347 | |
| 348 | tpgetc(ai) |
| 349 | { |
| 350 | register char **p; |
| 351 | register int c, i; |
| 352 | |
| 353 | i = ai; |
| 354 | if (mflg) { |
| 355 | if((c=getc(ifile[i])) == EOF) { |
| 356 | if (isclosed[i]==0) { |
| 357 | isclosed[i] = 1; |
| 358 | if (--nofile <= 0) |
| 359 | return(0); |
| 360 | } |
| 361 | return('\n'); |
| 362 | } |
| 363 | if (c==FF && ncol>0) |
| 364 | c = '\n'; |
| 365 | return(c); |
| 366 | } |
| 367 | loop: |
| 368 | c = **(p = &colp[i]) & 0377; |
| 369 | if (c == 0375) { |
| 370 | nexbuf(); |
| 371 | c = **p & 0377; |
| 372 | } |
| 373 | if (c == 0376) |
| 374 | return(0); |
| 375 | (*p)++; |
| 376 | if (*p >= &buffer[BUFS]) |
| 377 | *p = buffer; |
| 378 | if (c==0) |
| 379 | goto loop; |
| 380 | return(c); |
| 381 | } |
| 382 | |
| 383 | pgetc(i) |
| 384 | { |
| 385 | register int c; |
| 386 | |
| 387 | if (peekc) { |
| 388 | c = peekc; |
| 389 | peekc = 0; |
| 390 | } else |
| 391 | c = tpgetc(i); |
| 392 | if (tabc) |
| 393 | return(c); |
| 394 | switch (c) { |
| 395 | |
| 396 | case '\t': |
| 397 | icol++; |
| 398 | if ((icol&07) != 0) |
| 399 | peekc = '\t'; |
| 400 | return(' '); |
| 401 | |
| 402 | case '\n': |
| 403 | icol = 0; |
| 404 | break; |
| 405 | |
| 406 | case 010: |
| 407 | case 033: |
| 408 | icol--; |
| 409 | break; |
| 410 | } |
| 411 | if (c >= ' ') |
| 412 | icol++; |
| 413 | return(c); |
| 414 | } |
| 415 | put(ac) |
| 416 | { |
| 417 | register int ns, c; |
| 418 | |
| 419 | c = ac; |
| 420 | if (tabc) { |
| 421 | putcp(c); |
| 422 | if (c=='\n') |
| 423 | line++; |
| 424 | return; |
| 425 | } |
| 426 | switch (c) { |
| 427 | |
| 428 | case ' ': |
| 429 | nspace++; |
| 430 | col++; |
| 431 | return; |
| 432 | |
| 433 | case '\n': |
| 434 | col = 0; |
| 435 | nspace = 0; |
| 436 | line++; |
| 437 | break; |
| 438 | |
| 439 | case 010: |
| 440 | case 033: |
| 441 | if (--col<0) |
| 442 | col = 0; |
| 443 | if (--nspace<0) |
| 444 | nspace = 0; |
| 445 | |
| 446 | } |
| 447 | while(nspace) { |
| 448 | if (nspace>2 && col > (ns=((col-nspace)|07))) { |
| 449 | nspace = col-ns-1; |
| 450 | putcp('\t'); |
| 451 | } else { |
| 452 | nspace--; |
| 453 | putcp(' '); |
| 454 | } |
| 455 | } |
| 456 | if (c >= ' ') |
| 457 | col++; |
| 458 | putcp(c); |
| 459 | } |