diff options
Diffstat (limited to 'usr.bin/man/config.c')
| -rw-r--r-- | usr.bin/man/config.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/usr.bin/man/config.c b/usr.bin/man/config.c new file mode 100644 index 0000000..1d875b5 --- /dev/null +++ b/usr.bin/man/config.c @@ -0,0 +1,174 @@ +/* + * Copyright (c) 1989, 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 char sccsid[] = "@(#)config.c 8.7 (Berkeley) 1/3/94"; +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/queue.h> + +#include <ctype.h> +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "config.h" +#include "pathnames.h" + +struct _head head; + +/* + * config -- + * + * Read the configuration file and build a doubly linked + * list that looks like: + * + * tag1 <-> record <-> record <-> record + * | + * tag2 <-> record <-> record <-> record + */ +void +config(fname) + char *fname; +{ + TAG *tp; + ENTRY *ep; + FILE *cfp; + size_t len; + int lcnt; + char *p, *t; + + if (fname == NULL) + fname = _PATH_MANCONF; + if ((cfp = fopen(fname, "r")) == NULL) + err(1, "%s", fname); + TAILQ_INIT(&head); + for (lcnt = 1; (p = fgetln(cfp, &len)) != NULL; ++lcnt) { + if (len == 1) /* Skip empty lines. */ + continue; + if (p[len - 1] != '\n') { /* Skip corrupted lines. */ + warnx("%s: line %d corrupted", fname, lcnt); + continue; + } + p[len - 1] = '\0'; /* Terminate the line. */ + + /* Skip leading space. */ + for (; *p != '\0' && isspace(*p); ++p); + /* Skip empty/comment lines. */ + if (*p == '\0' || *p == '#') + continue; + /* Find first token. */ + for (t = p; *t && !isspace(*t); ++t); + if (*t == '\0') /* Need more than one token.*/ + continue; + *t = '\0'; + + for (tp = head.tqh_first; /* Find any matching tag. */ + tp != NULL && strcmp(p, tp->s); tp = tp->q.tqe_next); + + if (tp == NULL) /* Create a new tag. */ + tp = addlist(p); + + /* + * Attach new records. The keyword _build takes the rest of + * the line as a single entity, everything else is white + * space separated. The reason we're not just using strtok(3) + * for all of the parsing is so we don't get caught if a line + * has only a single token on it. + */ + if (!strcmp(p, "_build")) { + while (*++t && isspace(*t)); + if ((ep = malloc(sizeof(ENTRY))) == NULL || + (ep->s = strdup(t)) == NULL) + err(1, NULL); + TAILQ_INSERT_TAIL(&tp->list, ep, q); + } else for (++t; (p = strtok(t, " \t\n")) != NULL; t = NULL) { + if ((ep = malloc(sizeof(ENTRY))) == NULL || + (ep->s = strdup(p)) == NULL) + err(1, NULL); + TAILQ_INSERT_TAIL(&tp->list, ep, q); + } + } +} + +/* + * addlist -- + * Add a tag to the list. + */ +TAG * +addlist(name) + char *name; +{ + TAG *tp; + + if ((tp = calloc(1, sizeof(TAG))) == NULL || + (tp->s = strdup(name)) == NULL) + err(1, NULL); + TAILQ_INIT(&tp->list); + TAILQ_INSERT_TAIL(&head, tp, q); + return (tp); +} + +/* + * getlist -- + * Return the linked list of entries for a tag if it exists. + */ +TAG * +getlist(name) + char *name; +{ + TAG *tp; + + for (tp = head.tqh_first; tp != NULL; tp = tp->q.tqe_next) + if (!strcmp(name, tp->s)) + return (tp); + return (NULL); +} + +void +debug(l) + char *l; +{ + TAG *tp; + ENTRY *ep; + + (void)printf("%s ===============\n", l); + for (tp = head.tqh_first; tp != NULL; tp = tp->q.tqe_next) { + printf("%s\n", tp->s); + for (ep = tp->list.tqh_first; ep != NULL; ep = ep->q.tqe_next) + printf("\t%s\n", ep->s); + } +} |
