freebsd-dev/libexec/getNAME/getNAME.c
1999-08-28 00:22:10 +00:00

344 lines
7.1 KiB
C

/*-
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1980, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)getNAME.c 8.1 (Berkeley) 6/30/93";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
/*
* Get name sections from manual pages.
* -t for building toc
* -i for building intro entries
* other apropos database
*/
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int tocrc;
int intro;
int typeflag;
void doname __P((char *));
void dorefname __P((char *));
void getfrom __P((char *));
void split __P((char *, char *));
void trimln __P((char *));
static void usage __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
int ch;
while ((ch = getopt(argc, argv, "itw")) != -1)
switch(ch) {
case 'i':
intro = 1;
break;
case 't':
tocrc = 1;
break;
case 'w':
typeflag = 1;
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (!*argv)
usage();
for (; *argv; ++argv)
getfrom(*argv);
exit(0);
}
void
getfrom(pathname)
char *pathname;
{
int i = 0;
char *name, *loc;
char headbuf[BUFSIZ];
char linbuf[BUFSIZ];
if (freopen(pathname, "r", stdin) == 0) {
warn("%s", pathname);
return;
}
if ((name = strrchr(pathname, '/')))
name++;
else
name = pathname;
for (;;) {
if (fgets(headbuf, sizeof headbuf, stdin) == NULL) {
if (typeflag)
printf("%-60s UNKNOWN\n", pathname);
return;
}
if (headbuf[0] != '.')
continue;
if ((headbuf[1] == 'T' && headbuf[2] == 'H') ||
(headbuf[1] == 't' && headbuf[2] == 'h'))
break;
if (headbuf[1] == 'D' && headbuf[2] == 't') {
if (typeflag) {
printf("%-60s NEW\n", pathname);
return;
}
goto newman;
}
}
if (typeflag) {
printf("%-60s OLD\n", pathname);
return;
}
for (;;) {
if (fgets(linbuf, sizeof linbuf, stdin) == NULL)
return;
if (linbuf[0] != '.')
continue;
if (linbuf[1] == 'S' && linbuf[2] == 'H')
break;
if (linbuf[1] == 's' && linbuf[2] == 'h')
break;
}
trimln(headbuf);
if (tocrc)
doname(name);
if (!tocrc && !intro)
printf("%s\t", headbuf);
linbuf[0] = '\0';
for (;;) {
if (fgets(headbuf, sizeof headbuf, stdin) == NULL)
break;
if (headbuf[0] == '.') {
if (headbuf[1] == 'S' && headbuf[2] == 'H')
break;
if (headbuf[1] == 's' && headbuf[2] == 'h')
break;
}
if (i != 0)
strcat(linbuf, " ");
i++;
trimln(headbuf);
strcat(linbuf, headbuf);
}
if (intro)
split(linbuf, name);
else
printf("%s\n", linbuf);
return;
newman:
for (;;) {
if (fgets(linbuf, sizeof linbuf, stdin) == NULL)
return;
if (linbuf[0] != '.')
continue;
if (linbuf[1] == 'S' && linbuf[2] == 'h')
break;
}
trimln(headbuf);
if (tocrc)
doname(name);
if (!tocrc && !intro)
printf(".TH%s\t", &headbuf[3]);
linbuf[0] = '\0';
for (;;) {
if (fgets(headbuf, sizeof headbuf, stdin) == NULL)
break;
if (headbuf[0] == '.') {
if (headbuf[1] == 'S' && headbuf[2] == 'h')
break;
}
if (i != 0)
strcat(linbuf, " ");
i++;
trimln(headbuf);
for (loc = strchr(headbuf, ' '); loc; loc = strchr(loc, ' '))
if (loc[1] == ',')
strcpy(loc, &loc[1]);
else
loc++;
if (headbuf[0] != '.') {
strcat(linbuf, headbuf);
} else {
/*
* Get rid of quotes in macros.
*/
for (loc = strchr(&headbuf[4], '"'); loc; ) {
strcpy(loc, &loc[1]);
loc = strchr(loc, '"');
}
/*
* Handle cross references
*/
if (headbuf[1] == 'X' && headbuf[2] == 'r') {
for (loc = &headbuf[4]; *loc != ' '; loc++)
continue;
loc[0] = '(';
loc[2] = ')';
loc[3] = '\0';
}
/*
* Put dash between names and description.
*/
if (headbuf[1] == 'N' && headbuf[2] == 'd')
strcat(linbuf, "\\- ");
/*
* Skip over macro names.
*/
strcat(linbuf, &headbuf[4]);
}
}
if (intro)
split(linbuf, name);
else
printf("%s\n", linbuf);
}
void
trimln(cp)
register char *cp;
{
while (*cp)
cp++;
if (*--cp == '\n')
*cp = 0;
}
void
doname(name)
char *name;
{
register char *dp = name, *ep;
again:
while (*dp && *dp != '.')
putchar(*dp++);
if (*dp)
for (ep = dp+1; *ep; ep++)
if (*ep == '.') {
putchar(*dp++);
goto again;
}
putchar('(');
if (*dp)
dp++;
while (*dp)
putchar (*dp++);
putchar(')');
putchar(' ');
}
void
split(line, name)
char *line, *name;
{
register char *cp, *dp;
char *sp, *sep;
cp = strchr(line, '-');
if (cp == 0)
return;
sp = cp + 1;
for (--cp; *cp == ' ' || *cp == '\t' || *cp == '\\'; cp--)
;
*++cp = '\0';
while (*sp && (*sp == ' ' || *sp == '\t'))
sp++;
for (sep = "", dp = line; dp && *dp; dp = cp, sep = "\n") {
cp = strchr(dp, ',');
if (cp) {
register char *tp;
for (tp = cp - 1; *tp == ' ' || *tp == '\t'; tp--)
;
*++tp = '\0';
for (++cp; *cp == ' ' || *cp == '\t'; cp++)
;
}
printf("%s%s\t", sep, dp);
dorefname(name);
printf("\t%s", sp);
}
}
void
dorefname(name)
char *name;
{
register char *dp = name, *ep;
again:
while (*dp && *dp != '.')
putchar(*dp++);
if (*dp)
for (ep = dp+1; *ep; ep++)
if (*ep == '.') {
putchar(*dp++);
goto again;
}
putchar('.');
if (*dp)
dp++;
while (*dp)
putchar (*dp++);
}
static void
usage()
{
(void)fprintf(stderr, "usage: getNAME [-itw] file ...\n");
exit(1);
}