libexec/getNAME/getNAME.c

   1 /*-
   2  * Copyright (c) 1980, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * @(#) Copyright (c) 1980, 1993 The Regents of the University of California.  All rights reserved.
  34  * @(#)getNAME.c        8.1 (Berkeley) 6/30/93
  35  * $FreeBSD: src/libexec/getNAME/getNAME.c,v 1.7 1999/08/28 00:09:33 peter Exp $
  36  * $DragonFly: src/libexec/getNAME/getNAME.c,v 1.3 2003/11/14 04:54:30 dillon Exp $
  37  */
  38
  39 /*
  40  * Get name sections from manual pages.
  41  *      -t      for building toc
  42  *      -i      for building intro entries
  43  *      other   apropos database
  44  */
  45 #include <err.h>
  46 #include <stdio.h>
  47 #include <stdlib.h>
  48 #include <string.h>
  49 #include <unistd.h>
  50
  51 int tocrc;
  52 int intro;
  53 int typeflag;
  54
  55 void doname (char *);
  56 void dorefname (char *);
  57 void getfrom (char *);
  58 void split (char *, char *);
  59 void trimln (char *);
  60 static void usage (void);
  61
  62 int
  63 main(argc, argv)
  64         int argc;
  65         char *argv[];
  66 {
  67         int ch;
  68
  69         while ((ch = getopt(argc, argv, "itw")) != -1)
  70                 switch(ch) {
  71                 case 'i':
  72                         intro = 1;
  73                         break;
  74                 case 't':
  75                         tocrc = 1;
  76                         break;
  77                 case 'w':
  78                         typeflag = 1;
  79                         break;
  80                 default:
  81                         usage();
  82                 }
  83         argc -= optind;
  84         argv += optind;
  85
  86         if (!*argv)
  87                 usage();
  88
  89         for (; *argv; ++argv)
  90                 getfrom(*argv);
  91         exit(0);
  92 }
  93
  94 void
  95 getfrom(pathname)
  96         char *pathname;
  97 {
  98         int i = 0;
  99         char *name, *loc;
 100         char headbuf[BUFSIZ];
 101         char linbuf[BUFSIZ];
 102
 103         if (freopen(pathname, "r", stdin) == 0) {
 104                 warn("%s", pathname);
 105                 return;
 106         }
 107         if ((name = strrchr(pathname, '/')))
 108                 name++;
 109         else
 110                 name = pathname;
 111         for (;;) {
 112                 if (fgets(headbuf, sizeof headbuf, stdin) == NULL) {
 113                         if (typeflag)
 114                                 printf("%-60s   UNKNOWN\n", pathname);
 115                         return;
 116                 }
 117                 if (headbuf[0] != '.')
 118                         continue;
 119                 if ((headbuf[1] == 'T' && headbuf[2] == 'H') ||
 120                     (headbuf[1] == 't' && headbuf[2] == 'h'))
 121                         break;
 122                 if (headbuf[1] == 'D' && headbuf[2] == 't') {
 123                         if (typeflag) {
 124                                 printf("%-60s   NEW\n", pathname);
 125                                 return;
 126                         }
 127                         goto newman;
 128                 }
 129         }
 130         if (typeflag) {
 131                 printf("%-60s   OLD\n", pathname);
 132                 return;
 133         }
 134         for (;;) {
 135                 if (fgets(linbuf, sizeof linbuf, stdin) == NULL)
 136                         return;
 137                 if (linbuf[0] != '.')
 138                         continue;
 139                 if (linbuf[1] == 'S' && linbuf[2] == 'H')
 140                         break;
 141                 if (linbuf[1] == 's' && linbuf[2] == 'h')
 142                         break;
 143         }
 144         trimln(headbuf);
 145         if (tocrc)
 146                 doname(name);
 147         if (!tocrc && !intro)
 148                 printf("%s\t", headbuf);
 149         linbuf[0] = '\0';
 150         for (;;) {
 151                 if (fgets(headbuf, sizeof headbuf, stdin) == NULL)
 152                         break;
 153                 if (headbuf[0] == '.') {
 154                         if (headbuf[1] == 'S' && headbuf[2] == 'H')
 155                                 break;
 156                         if (headbuf[1] == 's' && headbuf[2] == 'h')
 157                                 break;
 158                 }
 159                 if (i != 0)
 160                         strcat(linbuf, " ");
 161                 i++;
 162                 trimln(headbuf);
 163                 strcat(linbuf, headbuf);
 164         }
 165         if (intro)
 166                 split(linbuf, name);
 167         else
 168                 printf("%s\n", linbuf);
 169         return;
 170
 171 newman:
 172         for (;;) {
 173                 if (fgets(linbuf, sizeof linbuf, stdin) == NULL)
 174                         return;
 175                 if (linbuf[0] != '.')
 176                         continue;
 177                 if (linbuf[1] == 'S' && linbuf[2] == 'h')
 178                         break;
 179         }
 180         trimln(headbuf);
 181         if (tocrc)
 182                 doname(name);
 183         if (!tocrc && !intro)
 184                 printf(".TH%s\t", &headbuf[3]);
 185         linbuf[0] = '\0';
 186         for (;;) {
 187                 if (fgets(headbuf, sizeof headbuf, stdin) == NULL)
 188                         break;
 189                 if (headbuf[0] == '.') {
 190                         if (headbuf[1] == 'S' && headbuf[2] == 'h')
 191                                 break;
 192                 }
 193                 if (i != 0)
 194                         strcat(linbuf, " ");
 195                 i++;
 196                 trimln(headbuf);
 197                 for (loc = strchr(headbuf, ' '); loc; loc = strchr(loc, ' '))
 198                         if (loc[1] == ',')
 199                                 strcpy(loc, &loc[1]);
 200                         else
 201                                 loc++;
 202                 if (headbuf[0] != '.') {
 203                         strcat(linbuf, headbuf);
 204                 } else {
 205                         /*
 206                          * Get rid of quotes in macros.
 207                          */
 208                         for (loc = strchr(&headbuf[4], '"'); loc; ) {
 209                                 strcpy(loc, &loc[1]);
 210                                 loc = strchr(loc, '"');
 211                         }
 212                         /*
 213                          * Handle cross references
 214                          */
 215                         if (headbuf[1] == 'X' && headbuf[2] == 'r') {
 216                                 for (loc = &headbuf[4]; *loc != ' '; loc++)
 217                                         continue;
 218                                 loc[0] = '(';
 219                                 loc[2] = ')';
 220                                 loc[3] = '\0';
 221                         }
 222                         /*
 223                          * Put dash between names and description.
 224                          */
 225                         if (headbuf[1] == 'N' && headbuf[2] == 'd')
 226                                 strcat(linbuf, "\\- ");
 227                         /*
 228                          * Skip over macro names.
 229                          */
 230                         strcat(linbuf, &headbuf[4]);
 231                 }
 232         }
 233         if (intro)
 234                 split(linbuf, name);
 235         else
 236                 printf("%s\n", linbuf);
 237 }
 238
 239 void
 240 trimln(cp)
 241         register char *cp;
 242 {
 243
 244         while (*cp)
 245                 cp++;
 246         if (*--cp == '\n')
 247                 *cp = 0;
 248 }
 249
 250 void
 251 doname(name)
 252         char *name;
 253 {
 254         register char *dp = name, *ep;
 255
 256 again:
 257         while (*dp && *dp != '.')
 258                 putchar(*dp++);
 259         if (*dp)
 260                 for (ep = dp+1; *ep; ep++)
 261                         if (*ep == '.') {
 262                                 putchar(*dp++);
 263                                 goto again;
 264                         }
 265         putchar('(');
 266         if (*dp)
 267                 dp++;
 268         while (*dp)
 269                 putchar (*dp++);
 270         putchar(')');
 271         putchar(' ');
 272 }
 273
 274 void
 275 split(line, name)
 276         char *line, *name;
 277 {
 278         register char *cp, *dp;
 279         char *sp, *sep;
 280
 281         cp = strchr(line, '-');
 282         if (cp == 0)
 283                 return;
 284         sp = cp + 1;
 285         for (--cp; *cp == ' ' || *cp == '\t' || *cp == '\\'; cp--)
 286                 ;
 287         *++cp = '\0';
 288         while (*sp && (*sp == ' ' || *sp == '\t'))
 289                 sp++;
 290         for (sep = "", dp = line; dp && *dp; dp = cp, sep = "\n") {
 291                 cp = strchr(dp, ',');
 292                 if (cp) {
 293                         register char *tp;
 294
 295                         for (tp = cp - 1; *tp == ' ' || *tp == '\t'; tp--)
 296                                 ;
 297                         *++tp = '\0';
 298                         for (++cp; *cp == ' ' || *cp == '\t'; cp++)
 299                                 ;
 300                 }
 301                 printf("%s%s\t", sep, dp);
 302                 dorefname(name);
 303                 printf("\t%s", sp);
 304         }
 305 }
 306
 307 void
 308 dorefname(name)
 309         char *name;
 310 {
 311         register char *dp = name, *ep;
 312
 313 again:
 314         while (*dp && *dp != '.')
 315                 putchar(*dp++);
 316         if (*dp)
 317                 for (ep = dp+1; *ep; ep++)
 318                         if (*ep == '.') {
 319                                 putchar(*dp++);
 320                                 goto again;
 321                         }
 322         putchar('.');
 323         if (*dp)
 324                 dp++;
 325         while (*dp)
 326                 putchar (*dp++);
 327 }
 328
 329 static void
 330 usage()
 331 {
 332         (void)fprintf(stderr, "usage: getNAME [-itw] file ...\n");
 333         exit(1);
 334 }