535 lines
11 KiB
C
535 lines
11 KiB
C
/* $NetBSD: getNAME.c,v 1.23 2004/03/20 20:26:58 christos Exp $ */
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/*-
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
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The Regents of the University of California. All rights reserved.\n");
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#if 0
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static char sccsid[] = "@(#)getNAME.c 8.1 (Berkeley) 6/30/93";
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#else
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__RCSID("$NetBSD: getNAME.c,v 1.23 2004/03/20 20:26:58 christos Exp $");
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#endif
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#endif /* not lint */
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/*
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* Get name sections from manual pages.
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* -t for building toc
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* -i for building intro entries
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* -w for querying type of manual source
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* -v verbose
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* other apropos database
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*/
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#include <err.h>
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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static int tocrc;
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static int intro;
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static int typeflag;
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static int verbose;
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#define SLOP 10 /* strlen(" () - ") < 10 */
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static char *linebuf = NULL;
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static size_t maxlen = 0;
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static void doname(char *);
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static void dorefname(char *);
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static void getfrom(char *);
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static void oldman(char *, char *);
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static void newman(char *, char *);
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static void remcomma(char *, size_t *);
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static void remquote(char *, size_t *);
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static void fixxref(char *, size_t *);
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static void split(char *, char *);
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static void usage(void);
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int main(int, char *[]);
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/* The .SH NAMEs that are allowed. */
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static const char *names[] = { "name", "namn", 0 };
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int
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main(int argc, char *argv[])
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{
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int ch;
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while ((ch = getopt(argc, argv, "itvw")) != -1)
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switch (ch) {
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case 'i':
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intro = 1;
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break;
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case 't':
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tocrc = 1;
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break;
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case 'v':
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verbose = 1;
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break;
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case 'w':
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typeflag = 1;
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break;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (!*argv)
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usage();
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for (; *argv; ++argv)
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getfrom(*argv);
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return 0;
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}
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static void
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getfrom(char *pathname)
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{
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char *name;
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char *line;
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size_t len;
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if (freopen(pathname, "r", stdin) == 0) {
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warn("Cannot open `%s'", pathname);
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return;
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}
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if ((name = strrchr(pathname, '/')) != NULL)
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name++;
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else
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name = pathname;
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for (;;) {
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if ((line = fgetln(stdin, &len)) == NULL) {
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if (typeflag)
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(void)printf("%-60s\tUNKNOWN\n", pathname);
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if (verbose)
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warnx("missing .TH or .Dt section in `%s'",
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pathname);
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return;
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}
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if (len < 3)
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continue;
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if (line[0] != '.')
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continue;
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if ((line[1] == 'T' && line[2] == 'H') ||
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(line[1] == 't' && line[2] == 'h')) {
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oldman(pathname, name);
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return;
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}
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if (line[1] == 'D' && line[2] == 't') {
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newman(pathname, name);
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return;
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}
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}
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}
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static void
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oldman(char *pathname, char *name)
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{
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char *line, *ext, *s, *newlinebuf;
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size_t len, i, extlen;
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size_t curlen = 0;
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size_t newmaxlen;
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if (typeflag) {
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(void)printf("%-60s\tOLD\n", pathname);
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return;
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}
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for (;;) {
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if ((line = fgetln(stdin, &len)) == NULL) {
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if (verbose)
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warnx("missing .SH section in `%s'", pathname);
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return;
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}
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if (len < 4)
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continue;
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if (line[0] != '.')
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continue;
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if (line[1] == 'S' && line[2] == 'H')
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break;
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if (line[1] == 's' && line[2] == 'h')
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break;
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}
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for (s = &line[3]; s < &line[len] &&
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(isspace((unsigned char) *s) || *s == '"' || *s == '\''); s++)
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continue;
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if (s == &line[len]) {
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warnx("missing argument to .SH in `%s'", pathname);
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return;
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}
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for (i = 0; names[i]; i++)
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if (strncasecmp(s, names[i], strlen(names[i])) == 0)
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break;
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if (names[i] == NULL) {
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warnx("first .SH section is not \"NAME\" in `%s'", pathname);
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return;
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}
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if (tocrc)
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doname(name);
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for (i = 0;; i++) {
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if ((line = fgetln(stdin, &len)) == NULL)
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break;
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if (line[0] == '.') {
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if (line[1] == '\\' && line[2] == '"')
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continue; /* [nt]roff comment */
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if (line[1] == 'S' && line[2] == 'H')
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break;
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if (line[1] == 's' && line[2] == 'h')
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break;
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if (line[1] == 'P' && line[2] == 'P')
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break;
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}
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if (line[len - 1] == '\n') {
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line[len - 1] = '\0';
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len--;
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}
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if ((ext = strrchr(name, '.')) != NULL) {
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ext++;
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extlen = strlen(ext);
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}
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else
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extlen = 0;
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if (maxlen + extlen < curlen + len + SLOP) {
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newmaxlen = 2 * (curlen + len) + SLOP + extlen;
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if ((newlinebuf = realloc(linebuf, newmaxlen)) == NULL)
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err(1, NULL);
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linebuf = newlinebuf;
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maxlen = newmaxlen;
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}
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if (i != 0)
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linebuf[curlen++] = ' ';
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(void)memcpy(&linebuf[curlen], line, len);
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curlen += len;
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linebuf[curlen] = '\0';
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if(!tocrc && !intro) {
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/* change the \- into (N) - */
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if ((s = strstr(linebuf, "\\-")) != NULL) {
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(void)memmove(s + extlen + 3, s + 1,
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curlen - (s + 1 - linebuf));
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curlen--;
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if (extlen) {
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*s++ = '(';
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while (*ext)
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*s++ = *ext++;
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*s++ = ')';
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*s++ = ' ';
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curlen += extlen + 3;
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}
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linebuf[curlen] = '\0';
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}
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}
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}
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if (intro)
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split(linebuf, name);
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else
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(void)printf("%s\n", linebuf);
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return;
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}
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static void
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newman(char *pathname, char *name)
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{
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char *line, *ext, *s, *newlinebuf;
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size_t len, i, extlen;
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size_t curlen = 0;
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size_t newmaxlen;
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if (typeflag) {
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(void)printf("%-60s\tNEW\n", pathname);
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return;
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}
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for (;;) {
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if ((line = fgetln(stdin, &len)) == NULL) {
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if (verbose)
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warnx("missing .Sh section in `%s'", pathname);
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return;
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}
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if (line[0] != '.')
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continue;
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if (line[1] == 'S' && line[2] == 'h')
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break;
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}
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for (s = &line[3]; s < &line[len] && isspace((unsigned char) *s); s++)
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continue;
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if (s == &line[len]) {
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warnx("missing argument to .Sh in `%s'", pathname);
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return;
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}
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for (i = 0; names[i]; i++)
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if (strncasecmp(s, names[i], strlen(names[i])) == 0)
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break;
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if (names[i] == NULL) {
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warnx("first .SH section is not \"NAME\" in `%s'", pathname);
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return;
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}
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if (tocrc)
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doname(name);
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for (i = 0;; i++) {
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if ((line = fgetln(stdin, &len)) == NULL)
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break;
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if (line[0] == '.') {
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if (line[1] == '\\' && line[2] == '"')
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continue; /* [nt]roff comment */
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if (line[1] == 'S' && line[2] == 'h')
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break;
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}
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if (line[len - 1] == '\n') {
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line[len - 1] = '\0';
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len--;
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}
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if ((ext = strrchr(name, '.')) != NULL) {
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ext++;
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extlen = strlen(ext);
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}
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else
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extlen = 0;
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if (maxlen + extlen < curlen + len + SLOP) {
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newmaxlen = 2 * (curlen + len) + SLOP + extlen;
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if ((newlinebuf = realloc(linebuf, newmaxlen)) == NULL)
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err(1, NULL);
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linebuf = newlinebuf;
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maxlen = newmaxlen;
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}
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if (i != 0)
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linebuf[curlen++] = ' ';
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remcomma(line, &len);
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if (line[0] != '.') {
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(void)memcpy(&linebuf[curlen], line, len);
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curlen += len;
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}
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else {
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remquote(line, &len);
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fixxref(line, &len);
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/*
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* Put section and dash between names and description.
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*/
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if (line[1] == 'N' && line[2] == 'd') {
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if(!tocrc && !intro) {
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if (extlen) {
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linebuf[curlen++] = '(';
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while (*ext)
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linebuf[curlen++] = *ext++;
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linebuf[curlen++] = ')';
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linebuf[curlen++] = ' ';
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}
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}
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linebuf[curlen++] = '-';
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linebuf[curlen++] = ' ';
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}
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/*
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* Skip over macro names.
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*/
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if (len <= 4)
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continue;
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(void)memcpy(&linebuf[curlen], &line[4], len - 4);
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curlen += len - 4;
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}
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}
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linebuf[curlen] = '\0';
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if (intro)
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split(linebuf, name);
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else
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(void)printf("%s\n", linebuf);
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}
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/*
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* convert " ," -> " "
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*/
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static void
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remcomma(char *line, size_t *len)
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{
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char *pline = line, *loc;
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size_t plen = *len;
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while ((loc = memchr(pline, ' ', plen)) != NULL) {
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plen -= loc - pline + 1;
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pline = loc;
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if (loc[1] == ',') {
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(void)memcpy(loc, &loc[1], plen);
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(*len)--;
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}
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else
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pline++;
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}
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}
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/*
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* Get rid of quotes in macros.
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*/
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static void
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remquote(char *line, size_t *len)
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{
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char *loc;
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char *pline = &line[4];
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size_t plen = *len - 4;
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if (*len < 4)
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return;
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while ((loc = memchr(pline, '"', plen)) != NULL) {
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plen -= loc - pline + 1;
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pline = loc;
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(void)memcpy(loc, &loc[1], plen);
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(*len)--;
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}
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}
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/*
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* Handle cross references
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*/
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static void
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fixxref(char *line, size_t *len)
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{
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char *loc;
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char *pline = &line[4];
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size_t plen = *len - 4;
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if (*len < 4)
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return;
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if (line[1] == 'X' && line[2] == 'r') {
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if ((loc = memchr(pline, ' ', plen)) != NULL) {
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*loc++ = '(';
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loc++;
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*loc++ = ')';
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*len = loc - line;
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}
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}
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}
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static void
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doname(char *name)
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{
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char *dp = name, *ep;
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again:
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while (*dp && *dp != '.')
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(void)putchar(*dp++);
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if (*dp)
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for (ep = dp+1; *ep; ep++)
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if (*ep == '.') {
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(void)putchar(*dp++);
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goto again;
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}
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(void)putchar('(');
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if (*dp)
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dp++;
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while (*dp)
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(void)putchar(*dp++);
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(void)putchar(')');
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(void)putchar(' ');
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}
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static void
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split(char *line, char *name)
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{
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char *cp, *dp;
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char *sp;
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const char *sep;
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cp = strchr(line, '-');
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if (cp == 0)
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return;
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sp = cp + 1;
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for (--cp; *cp == ' ' || *cp == '\t' || *cp == '\\'; cp--)
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;
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*++cp = '\0';
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while (*sp && (*sp == ' ' || *sp == '\t'))
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sp++;
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for (sep = "", dp = line; dp && *dp; dp = cp, sep = "\n") {
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cp = strchr(dp, ',');
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if (cp) {
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char *tp;
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for (tp = cp - 1; *tp == ' ' || *tp == '\t'; tp--)
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;
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*++tp = '\0';
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for (++cp; *cp == ' ' || *cp == '\t'; cp++)
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;
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}
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(void)printf("%s%s\t", sep, dp);
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dorefname(name);
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(void)printf("\t- %s", sp);
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}
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(void)putchar('\n');
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}
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static void
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dorefname(char *name)
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{
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char *dp = name, *ep;
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again:
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while (*dp && *dp != '.')
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(void)putchar(*dp++);
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if (*dp)
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for (ep = dp+1; *ep; ep++)
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if (*ep == '.') {
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(void)putchar(*dp++);
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goto again;
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}
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(void)putchar('.');
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if (*dp)
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dp++;
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while (*dp)
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(void)putchar(*dp++);
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}
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static void
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usage(void)
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{
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(void)fprintf(stderr, "Usage: %s [-itw] file ...\n", getprogname());
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exit(1);
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}
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