]> git.cameronkatri.com Git - mandoc.git/blobdiff - mandocdb.c
Allow ERRORS in section 4; OpenBSD rev. 1.121.
[mandoc.git] / mandocdb.c
index ce0a7b4af511bdb718f9d8d138235c75392ddd3e..d8008e84f6e1bd9cd20c429b940c69a45927880a 100644 (file)
@@ -1,7 +1,7 @@
-/*     $Id: mandocdb.c,v 1.90 2013/12/27 23:41:55 schwarze Exp $ */
+/*     $Id: mandocdb.c,v 1.124 2014/03/26 21:39:38 schwarze Exp $ */
 /*
  * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -20,6 +20,7 @@
 #endif
 
 #include <sys/stat.h>
+#include <sys/wait.h>
 
 #include <assert.h>
 #include <ctype.h>
 #include "mdoc.h"
 #include "man.h"
 #include "mandoc.h"
+#include "mandoc_aux.h"
 #include "manpath.h"
 #include "mansearch.h"
 
+extern int mansearch_keymax;
+extern const char *const mansearch_keynames[];
+
 #define        SQL_EXEC(_v) \
        if (SQLITE_OK != sqlite3_exec(db, (_v), NULL, NULL, NULL)) \
                fprintf(stderr, "%s\n", sqlite3_errmsg(db))
@@ -82,10 +87,10 @@ enum        form {
 };
 
 struct str {
-       char            *utf8; /* key in UTF-8 form */
+       char            *rendered; /* key in UTF-8 or ASCII form */
        const struct mpage *mpage; /* if set, the owning parse */
        uint64_t         mask; /* bitmask in sequence */
-       char             key[]; /* the string itself */
+       char             key[]; /* may contain escape sequences */
 };
 
 struct inodev {
@@ -95,6 +100,7 @@ struct       inodev {
 
 struct mpage {
        struct inodev    inodev;  /* used for hashing routine */
+       int64_t          recno;   /* id in mpages SQL table */
        enum form        form;    /* format from file content */
        char            *sec;     /* section from file content */
        char            *arch;    /* architecture from file content */
@@ -112,11 +118,8 @@ struct     mlink {
        char            *name;    /* name from file name (not empty) */
        char            *fsec;    /* section from file name suffix */
        struct mlink    *next;    /* singly linked list */
-};
-
-struct title {
-       char            *title; /* name(sec/arch) given inside the file */
-       char            *file; /* file name in case of mismatch */
+       struct mpage    *mpage;   /* parent */
+       int              gzip;    /* filename has a .gz suffix */
 };
 
 enum   stmt {
@@ -135,7 +138,8 @@ struct      mdoc_handler {
 };
 
 static void     dbclose(int);
-static void     dbindex(const struct mpage *, struct mchars *);
+static void     dbadd(struct mpage *, struct mchars *);
+static void     dbadd_mlink(const struct mlink *mlink);
 static int      dbopen(int);
 static void     dbprune(void);
 static void     filescan(const char *);
@@ -143,40 +147,41 @@ static    void    *hash_alloc(size_t, void *);
 static void     hash_free(void *, size_t, void *);
 static void    *hash_halloc(size_t, void *);
 static void     mlink_add(struct mlink *, const struct stat *);
+static int      mlink_check(struct mpage *, struct mlink *);
 static void     mlink_free(struct mlink *);
 static void     mlinks_undupe(struct mpage *);
 static void     mpages_free(void);
-static void     mpages_merge(struct mchars *, struct mparse *, int);
-static void     parse_cat(struct mpage *);
+static void     mpages_merge(struct mchars *, struct mparse *);
+static void     parse_cat(struct mpage *, int);
 static void     parse_man(struct mpage *, const struct man_node *);
 static void     parse_mdoc(struct mpage *, const struct mdoc_node *);
 static int      parse_mdoc_body(struct mpage *, const struct mdoc_node *);
 static int      parse_mdoc_head(struct mpage *, const struct mdoc_node *);
 static int      parse_mdoc_Fd(struct mpage *, const struct mdoc_node *);
 static int      parse_mdoc_Fn(struct mpage *, const struct mdoc_node *);
-static int      parse_mdoc_In(struct mpage *, const struct mdoc_node *);
 static int      parse_mdoc_Nd(struct mpage *, const struct mdoc_node *);
 static int      parse_mdoc_Nm(struct mpage *, const struct mdoc_node *);
 static int      parse_mdoc_Sh(struct mpage *, const struct mdoc_node *);
-static int      parse_mdoc_St(struct mpage *, const struct mdoc_node *);
 static int      parse_mdoc_Xr(struct mpage *, const struct mdoc_node *);
-static void     putkey(const struct mpage *,
-                       const char *, uint64_t);
+static void     putkey(const struct mpage *, char *, uint64_t);
 static void     putkeys(const struct mpage *,
                        const char *, size_t, uint64_t);
 static void     putmdockey(const struct mpage *,
                        const struct mdoc_node *, uint64_t);
+static void     render_key(struct mchars *, struct str *);
 static void     say(const char *, const char *, ...);
 static int      set_basedir(const char *);
 static int      treescan(void);
 static size_t   utf8(unsigned int, char [7]);
-static void     utf8key(struct mchars *, struct str *);
 
+static char             tempfilename[32];
 static char            *progname;
-static int              use_all; /* use all found files */
 static int              nodb; /* no database changes */
+static int              mparse_options; /* abort the parse early */
+static int              use_all; /* use all found files */
 static int              verb; /* print what we're doing */
 static int              warnings; /* warn about crap */
+static int              write_utf8; /* write UTF-8 output; else ASCII */
 static int              exitcode; /* to be returned by main */
 static enum op          op; /* operational mode */
 static char             basedir[PATH_MAX]; /* current base directory */
@@ -216,7 +221,7 @@ static      const struct mdoc_handler mdocs[MDOC_MAX] = {
        { parse_mdoc_Fn, 0 },  /* Fn */
        { NULL, TYPE_Ft },  /* Ft */
        { NULL, TYPE_Ic },  /* Ic */
-       { parse_mdoc_In, TYPE_In },  /* In */
+       { NULL, TYPE_In },  /* In */
        { NULL, TYPE_Li },  /* Li */
        { parse_mdoc_Nd, TYPE_Nd },  /* Nd */
        { parse_mdoc_Nm, TYPE_Nm },  /* Nm */
@@ -224,7 +229,7 @@ static      const struct mdoc_handler mdocs[MDOC_MAX] = {
        { NULL, 0 },  /* Ot */
        { NULL, TYPE_Pa },  /* Pa */
        { NULL, 0 },  /* Rv */
-       { parse_mdoc_St, 0 },  /* St */
+       { NULL, TYPE_St },  /* St */
        { NULL, TYPE_Va },  /* Va */
        { parse_mdoc_body, TYPE_Va },  /* Vt */
        { parse_mdoc_Xr, 0 },  /* Xr */
@@ -352,7 +357,7 @@ main(int argc, char *argv[])
        path_arg = NULL;
        op = OP_DEFAULT;
 
-       while (-1 != (ch = getopt(argc, argv, "aC:d:ntu:vW")))
+       while (-1 != (ch = getopt(argc, argv, "aC:d:nQT:tu:vW")))
                switch (ch) {
                case ('a'):
                        use_all = 1;
@@ -370,6 +375,17 @@ main(int argc, char *argv[])
                case ('n'):
                        nodb = 1;
                        break;
+               case ('Q'):
+                       mparse_options |= MPARSE_QUICK;
+                       break;
+               case ('T'):
+                       if (strcmp(optarg, "utf8")) {
+                               fprintf(stderr, "-T%s: Unsupported "
+                                   "output format\n", optarg);
+                               goto usage;
+                       }
+                       write_utf8 = 1;
+                       break;
                case ('t'):
                        CHECKOP(op, ch);
                        dup2(STDOUT_FILENO, STDERR_FILENO);
@@ -400,8 +416,7 @@ main(int argc, char *argv[])
        }
 
        exitcode = (int)MANDOCLEVEL_OK;
-       mp = mparse_alloc(MPARSE_AUTO, 
-               MANDOCLEVEL_FATAL, NULL, NULL, NULL);
+       mp = mparse_alloc(mparse_options, MANDOCLEVEL_FATAL, NULL, NULL);
        mc = mchars_alloc();
 
        ohash_init(&mpages, 6, &mpages_info);
@@ -427,7 +442,7 @@ main(int argc, char *argv[])
                if (OP_TEST != op)
                        dbprune();
                if (OP_DELETE != op)
-                       mpages_merge(mc, mp, 0);
+                       mpages_merge(mc, mp);
                dbclose(1);
        } else {
                /*
@@ -471,7 +486,7 @@ main(int argc, char *argv[])
                        if (0 == dbopen(0))
                                goto out;
 
-                       mpages_merge(mc, mp, warnings && !use_all);
+                       mpages_merge(mc, mp);
                        dbclose(0);
 
                        if (j + 1 < dirs.sz) {
@@ -491,11 +506,11 @@ out:
        ohash_delete(&mlinks);
        return(exitcode);
 usage:
-       fprintf(stderr, "usage: %s [-anvW] [-C file]\n"
-                       "       %s [-anvW] dir ...\n"
-                       "       %s [-nvW] -d dir [file ...]\n"
+       fprintf(stderr, "usage: %s [-anQvW] [-C file] [-Tutf8]\n"
+                       "       %s [-anQvW] [-Tutf8] dir ...\n"
+                       "       %s [-nQvW] [-Tutf8] -d dir [file ...]\n"
                        "       %s [-nvW] -u dir [file ...]\n"
-                       "       %s -t file ...\n",
+                       "       %s [-Q] -t file ...\n",
                       progname, progname, progname, 
                       progname, progname);
 
@@ -522,9 +537,9 @@ treescan(void)
        FTS             *f;
        FTSENT          *ff;
        struct mlink    *mlink;
-       int              dform;
-       char            *fsec;
-       const char      *dsec, *arch, *cp, *path;
+       int              dform, gzip;
+       char            *dsec, *arch, *fsec, *cp;
+       const char      *path;
        const char      *argv[2];
 
        argv[0] = ".";
@@ -537,7 +552,7 @@ treescan(void)
        f = fts_open((char * const *)argv, FTS_LOGICAL, NULL);
        if (NULL == f) {
                exitcode = (int)MANDOCLEVEL_SYSERR;
-               say("", NULL);
+               say("", "&fts_open");
                return(0);
        }
 
@@ -557,8 +572,18 @@ treescan(void)
                                if (warnings)
                                        say(path, "Extraneous file");
                                continue;
-                       } else if (NULL == (fsec =
-                                       strrchr(ff->fts_name, '.'))) {
+                       }
+                       gzip = 0;
+                       fsec = NULL;
+                       while (NULL == fsec) {
+                               fsec = strrchr(ff->fts_name, '.');
+                               if (NULL == fsec || strcmp(fsec+1, "gz"))
+                                       break;
+                               gzip = 1;
+                               *fsec = '\0';
+                               fsec = NULL;
+                       }
+                       if (NULL == fsec) {
                                if ( ! use_all) {
                                        if (warnings)
                                                say(path,
@@ -569,10 +594,6 @@ treescan(void)
                                if (warnings)
                                        say(path, "Skip html");
                                continue;
-                       } else if (0 == strcmp(fsec, "gz")) {
-                               if (warnings)
-                                       say(path, "Skip gz");
-                               continue;
                        } else if (0 == strcmp(fsec, "ps")) {
                                if (warnings)
                                        say(path, "Skip ps");
@@ -589,16 +610,15 @@ treescan(void)
                                continue;
                        } else
                                fsec[-1] = '\0';
+
                        mlink = mandoc_calloc(1, sizeof(struct mlink));
                        strlcpy(mlink->file, path, sizeof(mlink->file));
                        mlink->dform = dform;
-                       if (NULL != dsec)
-                               mlink->dsec = mandoc_strdup(dsec);
-                       if (NULL != arch)
-                               mlink->arch = mandoc_strdup(arch);
-                       mlink->name = mandoc_strdup(ff->fts_name);
-                       if (NULL != fsec)
-                               mlink->fsec = mandoc_strdup(fsec);
+                       mlink->dsec = dsec;
+                       mlink->arch = arch;
+                       mlink->name = ff->fts_name;
+                       mlink->fsec = fsec;
+                       mlink->gzip = gzip;
                        mlink_add(mlink, ff->fts_statp);
                        continue;
                } else if (FTS_D != ff->fts_info &&
@@ -618,8 +638,6 @@ treescan(void)
                         * Try to infer this from the name.
                         * If we're not in use_all, enforce it.
                         */
-                       dsec = NULL;
-                       dform = FORM_NONE;
                        cp = ff->fts_name;
                        if (FTS_DP == ff->fts_info)
                                break;
@@ -630,6 +648,9 @@ treescan(void)
                        } else if (0 == strncmp(cp, "cat", 3)) {
                                dform = FORM_CAT;
                                dsec = cp + 3;
+                       } else {
+                               dform = FORM_NONE;
+                               dsec = NULL;
                        }
 
                        if (NULL != dsec || use_all) 
@@ -644,9 +665,10 @@ treescan(void)
                         * Possibly our architecture.
                         * If we're descending, keep tabs on it.
                         */
-                       arch = NULL;
                        if (FTS_DP != ff->fts_info && NULL != dsec)
                                arch = ff->fts_name;
+                       else
+                               arch = NULL;
                        break;
                default:
                        if (FTS_DP == ff->fts_info || use_all)
@@ -691,22 +713,30 @@ filescan(const char *file)
 
        if (NULL == realpath(file, buf)) {
                exitcode = (int)MANDOCLEVEL_BADARG;
-               say(file, NULL);
+               say(file, "&realpath");
                return;
-       } else if (OP_TEST != op && strstr(buf, basedir) != buf) {
+       }
+
+       if (strstr(buf, basedir) == buf)
+               start = buf + strlen(basedir) + 1;
+       else if (OP_TEST == op)
+               start = buf;
+       else {
                exitcode = (int)MANDOCLEVEL_BADARG;
                say("", "%s: outside base directory", buf);
                return;
-       } else if (-1 == stat(buf, &st)) {
+       }
+
+       if (-1 == stat(buf, &st)) {
                exitcode = (int)MANDOCLEVEL_BADARG;
-               say(file, NULL);
+               say(file, "&stat");
                return;
        } else if ( ! (S_IFREG & st.st_mode)) {
                exitcode = (int)MANDOCLEVEL_BADARG;
                say(file, "Not a regular file");
                return;
        }
-       start = buf + strlen(basedir);
+
        mlink = mandoc_calloc(1, sizeof(struct mlink));
        strlcpy(mlink->file, start, sizeof(mlink->file));
 
@@ -720,16 +750,16 @@ filescan(const char *file)
                *p++ = '\0';
                if (0 == strncmp(start, "man", 3)) {
                        mlink->dform = FORM_SRC;
-                       mlink->dsec = mandoc_strdup(start + 3);
+                       mlink->dsec = start + 3;
                } else if (0 == strncmp(start, "cat", 3)) {
                        mlink->dform = FORM_CAT;
-                       mlink->dsec = mandoc_strdup(start + 3);
+                       mlink->dsec = start + 3;
                }
 
                start = p;
                if (NULL != mlink->dsec && NULL != (p = strchr(start, '/'))) {
                        *p++ = '\0';
-                       mlink->arch = mandoc_strdup(start);
+                       mlink->arch = start;
                        start = p;
                }
        }
@@ -744,7 +774,7 @@ filescan(const char *file)
 
        if ('.' == *p) {
                *p++ = '\0';
-               mlink->fsec = mandoc_strdup(p);
+               mlink->fsec = p;
        }
 
        /*
@@ -756,8 +786,6 @@ filescan(const char *file)
                mlink->name = p + 1;
                *p = '\0';
        }
-       mlink->name = mandoc_strdup(mlink->name);
-
        mlink_add(mlink, &st);
 }
 
@@ -770,14 +798,10 @@ mlink_add(struct mlink *mlink, const struct stat *st)
 
        assert(NULL != mlink->file);
 
-       if (NULL == mlink->dsec)
-               mlink->dsec = mandoc_strdup("");
-       if (NULL == mlink->arch)
-               mlink->arch = mandoc_strdup("");
-       if (NULL == mlink->name)
-               mlink->name = mandoc_strdup("");
-       if (NULL == mlink->fsec)
-               mlink->fsec = mandoc_strdup("");
+       mlink->dsec = mandoc_strdup(mlink->dsec ? mlink->dsec : "");
+       mlink->arch = mandoc_strdup(mlink->arch ? mlink->arch : "");
+       mlink->name = mandoc_strdup(mlink->name ? mlink->name : "");
+       mlink->fsec = mandoc_strdup(mlink->fsec ? mlink->fsec : "");
 
        if ('0' == *mlink->fsec) {
                free(mlink->fsec);
@@ -805,6 +829,7 @@ mlink_add(struct mlink *mlink, const struct stat *st)
        } else
                mlink->next = mpage->mlinks;
        mpage->mlinks = mlink;
+       mlink->mpage = mpage;
 }
 
 static void
@@ -887,6 +912,54 @@ nextlink:
        }
 }
 
+static int
+mlink_check(struct mpage *mpage, struct mlink *mlink)
+{
+       int      match;
+
+       match = 1;
+
+       /*
+        * Check whether the manual section given in a file
+        * agrees with the directory where the file is located.
+        * Some manuals have suffixes like (3p) on their
+        * section number either inside the file or in the
+        * directory name, some are linked into more than one
+        * section, like encrypt(1) = makekey(8).
+        */
+
+       if (FORM_SRC == mpage->form &&
+           strcasecmp(mpage->sec, mlink->dsec)) {
+               match = 0;
+               say(mlink->file, "Section \"%s\" manual in %s directory",
+                   mpage->sec, mlink->dsec);
+       }
+
+       /*
+        * Manual page directories exist for each kernel
+        * architecture as returned by machine(1).
+        * However, many manuals only depend on the
+        * application architecture as returned by arch(1).
+        * For example, some (2/ARM) manuals are shared
+        * across the "armish" and "zaurus" kernel
+        * architectures.
+        * A few manuals are even shared across completely
+        * different architectures, for example fdformat(1)
+        * on amd64, i386, sparc, and sparc64.
+        */
+
+       if (strcasecmp(mpage->arch, mlink->arch)) {
+               match = 0;
+               say(mlink->file, "Architecture \"%s\" manual in "
+                   "\"%s\" directory", mpage->arch, mlink->arch);
+       }
+
+       if (strcasecmp(mpage->title, mlink->name))
+               match = 0;
+
+       return(match);
+}
+
 /*
  * Run through the files in the global vector "mpages"
  * and add them to the database specified in "basedir".
@@ -895,18 +968,20 @@ nextlink:
  * and filename to determine whether the file is parsable or not.
  */
 static void
-mpages_merge(struct mchars *mc, struct mparse *mp, int check_reachable)
+mpages_merge(struct mchars *mc, struct mparse *mp)
 {
-       struct ohash             title_table;
-       struct ohash_info        title_info, str_info;
-       struct mpage            *mpage;
+       char                     any[] = "any";
+       struct ohash_info        str_info;
+       int                      fd[2];
+       struct mpage            *mpage, *mpage_dest;
+       struct mlink            *mlink, *mlink_dest;
        struct mdoc             *mdoc;
        struct man              *man;
-       struct title            *title_entry;
-       char                    *title_str;
-       const char              *cp;
-       int                      match;
-       unsigned int             pslot, tslot;
+       char                    *sodest;
+       char                    *cp;
+       pid_t                    child_pid;
+       int                      match, status;
+       unsigned int             pslot;
        enum mandoclevel         lvl;
 
        str_info.alloc = hash_alloc;
@@ -914,13 +989,8 @@ mpages_merge(struct mchars *mc, struct mparse *mp, int check_reachable)
        str_info.hfree = hash_free;
        str_info.key_offset = offsetof(struct str, key);
 
-       if (check_reachable) {
-               title_info.alloc = hash_alloc;
-               title_info.halloc = hash_halloc;
-               title_info.hfree = hash_free;
-               title_info.key_offset = offsetof(struct title, title);
-               ohash_init(&title_table, 6, &title_info);
-       }
+       if (0 == nodb)
+               SQL_EXEC("BEGIN TRANSACTION");
 
        mpage = ohash_first(&mpages, &pslot);
        while (NULL != mpage) {
@@ -934,7 +1004,41 @@ mpages_merge(struct mchars *mc, struct mparse *mp, int check_reachable)
                mparse_reset(mp);
                mdoc = NULL;
                man = NULL;
-               match = 1;
+               sodest = NULL;
+               child_pid = 0;
+               fd[0] = -1;
+               fd[1] = -1;
+
+               if (mpage->mlinks->gzip) {
+                       if (-1 == pipe(fd)) {
+                               exitcode = (int)MANDOCLEVEL_SYSERR;
+                               say(mpage->mlinks->file, "&pipe gunzip");
+                               goto nextpage;
+                       }
+                       switch (child_pid = fork()) {
+                       case (-1):
+                               exitcode = (int)MANDOCLEVEL_SYSERR;
+                               say(mpage->mlinks->file, "&fork gunzip");
+                               child_pid = 0;
+                               close(fd[1]);
+                               close(fd[0]);
+                               goto nextpage;
+                       case (0):
+                               close(fd[0]);
+                               if (-1 == dup2(fd[1], STDOUT_FILENO)) {
+                                       say(mpage->mlinks->file,
+                                           "&dup gunzip");
+                                       exit(1);
+                               }
+                               execlp("gunzip", "gunzip", "-c",
+                                   mpage->mlinks->file, NULL);
+                               say(mpage->mlinks->file, "&exec gunzip");
+                               exit(1);
+                       default:
+                               close(fd[1]);
+                               break;
+                       }
+               }
 
                /*
                 * Try interpreting the file as mdoc(7) or man(7)
@@ -943,12 +1047,48 @@ mpages_merge(struct mchars *mc, struct mparse *mp, int check_reachable)
                 */
                if (FORM_CAT != mpage->mlinks->dform ||
                    FORM_CAT != mpage->mlinks->fform) {
-                       lvl = mparse_readfd(mp, -1, mpage->mlinks->file);
+                       lvl = mparse_readfd(mp, fd[0], mpage->mlinks->file);
                        if (lvl < MANDOCLEVEL_FATAL)
-                               mparse_result(mp, &mdoc, &man);
+                               mparse_result(mp, &mdoc, &man, &sodest);
                }
 
-               if (NULL != mdoc) {
+               if (NULL != sodest) {
+                       mlink_dest = ohash_find(&mlinks,
+                           ohash_qlookup(&mlinks, sodest));
+                       if (NULL != mlink_dest) {
+
+                               /* The .so target exists. */
+
+                               mpage_dest = mlink_dest->mpage;
+                               mlink = mpage->mlinks;
+                               while (1) {
+                                       mlink->mpage = mpage_dest;
+
+                                       /*
+                                        * If the target was already
+                                        * processed, add the links
+                                        * to the database now.
+                                        * Otherwise, this will
+                                        * happen when we come
+                                        * to the target.
+                                        */
+
+                                       if (mpage_dest->recno)
+                                               dbadd_mlink(mlink);
+
+                                       if (NULL == mlink->next)
+                                               break;
+                                       mlink = mlink->next;
+                               }
+
+                               /* Move all links to the target. */
+
+                               mlink->next = mlink_dest->next;
+                               mlink_dest->next = mpage->mlinks;
+                               mpage->mlinks = NULL;
+                       }
+                       goto nextpage;
+               } else if (NULL != mdoc) {
                        mpage->form = FORM_SRC;
                        mpage->sec =
                            mandoc_strdup(mdoc_meta(mdoc)->msec);
@@ -974,50 +1114,28 @@ mpages_merge(struct mchars *mc, struct mparse *mp, int check_reachable)
                        mpage->title =
                            mandoc_strdup(mpage->mlinks->name);
                }
-
-               /*
-                * Check whether the manual section given in a file
-                * agrees with the directory where the file is located.
-                * Some manuals have suffixes like (3p) on their
-                * section number either inside the file or in the
-                * directory name, some are linked into more than one
-                * section, like encrypt(1) = makekey(8).  Do not skip
-                * manuals for such reasons.
-                */
-               if (warnings && !use_all && FORM_SRC == mpage->form &&
-                   strcasecmp(mpage->sec, mpage->mlinks->dsec)) {
-                       match = 0;
-                       say(mpage->mlinks->file, "Section \"%s\" "
-                               "manual in %s directory",
-                               mpage->sec, mpage->mlinks->dsec);
+               putkey(mpage, mpage->sec, TYPE_sec);
+               putkey(mpage, '\0' == *mpage->arch ?
+                   any : mpage->arch, TYPE_arch);
+
+               for (mlink = mpage->mlinks; mlink; mlink = mlink->next) {
+                       if ('\0' != *mlink->dsec)
+                               putkey(mpage, mlink->dsec, TYPE_sec);
+                       if ('\0' != *mlink->fsec)
+                               putkey(mpage, mlink->fsec, TYPE_sec);
+                       putkey(mpage, '\0' == *mlink->arch ?
+                           any : mlink->arch, TYPE_arch);
+                       putkey(mpage, mlink->name, TYPE_Nm);
                }
 
-               /*
-                * Manual page directories exist for each kernel
-                * architecture as returned by machine(1).
-                * However, many manuals only depend on the
-                * application architecture as returned by arch(1).
-                * For example, some (2/ARM) manuals are shared
-                * across the "armish" and "zaurus" kernel
-                * architectures.
-                * A few manuals are even shared across completely
-                * different architectures, for example fdformat(1)
-                * on amd64, i386, sparc, and sparc64.
-                * Thus, warn about architecture mismatches,
-                * but don't skip manuals for this reason.
-                */
-               if (warnings && !use_all &&
-                   strcasecmp(mpage->arch, mpage->mlinks->arch)) {
+               if (warnings && !use_all) {
                        match = 0;
-                       say(mpage->mlinks->file, "Architecture \"%s\" "
-                               "manual in \"%s\" directory",
-                               mpage->arch, mpage->mlinks->arch);
-               }
-               if (warnings && !use_all &&
-                   strcasecmp(mpage->title, mpage->mlinks->name))
-                       match = 0;
-
-               putkey(mpage, mpage->mlinks->name, TYPE_Nm);
+                       for (mlink = mpage->mlinks; mlink;
+                            mlink = mlink->next)
+                               if (mlink_check(mpage, mlink))
+                                       match = 1;
+               } else
+                       match = 1;
 
                if (NULL != mdoc) {
                        if (NULL != (cp = mdoc_meta(mdoc)->name))
@@ -1029,70 +1147,48 @@ mpages_merge(struct mchars *mc, struct mparse *mp, int check_reachable)
                } else if (NULL != man)
                        parse_man(mpage, man_node(man));
                else
-                       parse_cat(mpage);
-
-               /*
-                * Build a title string for the file.  If it matches
-                * the location of the file, remember the title as
-                * found; else, remember it as missing.
-                */
-
-               if (check_reachable) {
-                       if (-1 == asprintf(&title_str, "%s(%s%s%s)",
-                           mpage->title, mpage->sec,
-                           '\0' == *mpage->arch ? "" : "/",
-                           mpage->arch)) {
-                               perror(NULL);
-                               exit((int)MANDOCLEVEL_SYSERR);
-                       }
-                       tslot = ohash_qlookup(&title_table, title_str);
-                       title_entry = ohash_find(&title_table, tslot);
-                       if (NULL == title_entry) {
-                               title_entry = mandoc_malloc(
-                                               sizeof(struct title));
-                               title_entry->title = title_str;
-                               title_entry->file = mandoc_strdup(
-                                   match ? "" : mpage->mlinks->file);
-                               ohash_insert(&title_table, tslot,
-                                               title_entry);
-                       } else {
-                               if (match)
-                                       *title_entry->file = '\0';
-                               free(title_str);
+                       parse_cat(mpage, fd[0]);
+
+               dbadd(mpage, mc);
+
+nextpage:
+               if (child_pid) {
+                       if (-1 == waitpid(child_pid, &status, 0)) {
+                               exitcode = (int)MANDOCLEVEL_SYSERR;
+                               say(mpage->mlinks->file, "&wait gunzip");
+                       } else if (WIFSIGNALED(status)) {
+                               exitcode = (int)MANDOCLEVEL_SYSERR;
+                               say(mpage->mlinks->file,
+                                   "gunzip died from signal %d",
+                                   WTERMSIG(status));
+                       } else if (WEXITSTATUS(status)) {
+                               exitcode = (int)MANDOCLEVEL_SYSERR;
+                               say(mpage->mlinks->file,
+                                   "gunzip failed with code %d",
+                                   WEXITSTATUS(status));
                        }
                }
-
-               dbindex(mpage, mc);
                ohash_delete(&strings);
                mpage = ohash_next(&mpages, &pslot);
        }
 
-       if (check_reachable) {
-               title_entry = ohash_first(&title_table, &tslot);
-               while (NULL != title_entry) {
-                       if ('\0' != *title_entry->file)
-                               say(title_entry->file,
-                                   "Probably unreachable, title is %s",
-                                   title_entry->title);
-                       free(title_entry->title);
-                       free(title_entry->file);
-                       free(title_entry);
-                       title_entry = ohash_next(&title_table, &tslot);
-               }
-               ohash_delete(&title_table);
-       }
+       if (0 == nodb)
+               SQL_EXEC("END TRANSACTION");
 }
 
 static void
-parse_cat(struct mpage *mpage)
+parse_cat(struct mpage *mpage, int fd)
 {
        FILE            *stream;
        char            *line, *p, *title;
        size_t           len, plen, titlesz;
 
-       if (NULL == (stream = fopen(mpage->mlinks->file, "r"))) {
+       stream = (-1 == fd) ?
+           fopen(mpage->mlinks->file, "r") :
+           fdopen(fd, "r");
+       if (NULL == stream) {
                if (warnings)
-                       say(mpage->mlinks->file, NULL);
+                       say(mpage->mlinks->file, "&fopen");
                return;
        }
 
@@ -1199,10 +1295,15 @@ parse_cat(struct mpage *mpage)
  * Put a type/word pair into the word database for this particular file.
  */
 static void
-putkey(const struct mpage *mpage, const char *value, uint64_t type)
+putkey(const struct mpage *mpage, char *value, uint64_t type)
 {
+       char     *cp;
 
        assert(NULL != value);
+       if (TYPE_arch == type)
+               for (cp = value; *cp; cp++)
+                       if (isupper((unsigned char)*cp))
+                               *cp = _tolower((unsigned char)*cp);
        putkeys(mpage, value, strlen(value), type);
 }
 
@@ -1226,9 +1327,9 @@ static void
 parse_man(struct mpage *mpage, const struct man_node *n)
 {
        const struct man_node *head, *body;
-       char            *start, *sv, *title;
+       char            *start, *title;
        char             byte;
-       size_t           sz, titlesz;
+       size_t           sz;
 
        if (NULL == n)
                return;
@@ -1248,11 +1349,7 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                                NULL != (head = (head->child)) &&
                                MAN_TEXT == head->type &&
                                0 == strcmp(head->string, "NAME") &&
-                               NULL != (body = body->child) &&
-                               MAN_TEXT == body->type) {
-
-                       title = NULL;
-                       titlesz = 0;
+                               NULL != body->child) {
 
                        /*
                         * Suck the entire NAME section into memory.
@@ -1261,47 +1358,11 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                         * NAME sections over many lines.
                         */
 
-                       for ( ; NULL != body; body = body->next) {
-                               if (MAN_TEXT != body->type)
-                                       break;
-                               if (0 == (sz = strlen(body->string)))
-                                       continue;
-                               title = mandoc_realloc
-                                       (title, titlesz + sz + 1);
-                               memcpy(title + titlesz, body->string, sz);
-                               titlesz += sz + 1;
-                               title[titlesz - 1] = ' ';
-                       }
+                       title = NULL;
+                       man_deroff(&title, body);
                        if (NULL == title)
                                return;
 
-                       title = mandoc_realloc(title, titlesz + 1);
-                       title[titlesz] = '\0';
-
-                       /* Skip leading space.  */
-
-                       sv = title;
-                       while (isspace((unsigned char)*sv))
-                               sv++;
-
-                       if (0 == (sz = strlen(sv))) {
-                               free(title);
-                               return;
-                       }
-
-                       /* Erase trailing space. */
-
-                       start = &sv[sz - 1];
-                       while (start > sv && isspace((unsigned char)*start))
-                               *start-- = '\0';
-
-                       if (start == sv) {
-                               free(title);
-                               return;
-                       }
-
-                       start = sv;
-
                        /* 
                         * Go through a special heuristic dance here.
                         * Conventionally, one or more manual names are
@@ -1310,6 +1371,7 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                         * the name parts here.
                         */
 
+                       start = title;
                        for ( ;; ) {
                                sz = strcspn(start, " ,");
                                if ('\0' == start[sz])
@@ -1318,6 +1380,15 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                                byte = start[sz];
                                start[sz] = '\0';
 
+                               /*
+                                * Assume a stray trailing comma in the
+                                * name list if a name begins with a dash.
+                                */
+
+                               if ('-' == start[0] ||
+                                   ('\\' == start[0] && '-' == start[1]))
+                                       break;
+
                                putkey(mpage, start, TYPE_Nm);
 
                                if (' ' == byte) {
@@ -1331,7 +1402,7 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                                        start++;
                        }
 
-                       if (sv == start) {
+                       if (start == title) {
                                putkey(mpage, start, TYPE_Nm);
                                free(title);
                                return;
@@ -1441,24 +1512,13 @@ parse_mdoc_Fd(struct mpage *mpage, const struct mdoc_node *n)
 
        if (end > start)
                putkeys(mpage, start, end - start + 1, TYPE_In);
-       return(1);
-}
-
-static int
-parse_mdoc_In(struct mpage *mpage, const struct mdoc_node *n)
-{
-
-       if (NULL != n->child && MDOC_TEXT == n->child->type)
-               return(0);
-
-       putkey(mpage, n->child->string, TYPE_In);
-       return(1);
+       return(0);
 }
 
 static int
 parse_mdoc_Fn(struct mpage *mpage, const struct mdoc_node *n)
 {
-       const char      *cp;
+       char    *cp;
 
        if (NULL == (n = n->child) || MDOC_TEXT != n->type)
                return(0);
@@ -1488,17 +1548,6 @@ parse_mdoc_Fn(struct mpage *mpage, const struct mdoc_node *n)
        return(0);
 }
 
-static int
-parse_mdoc_St(struct mpage *mpage, const struct mdoc_node *n)
-{
-
-       if (NULL == n->child || MDOC_TEXT != n->child->type)
-               return(0);
-
-       putkey(mpage, n->child->string, TYPE_St);
-       return(1);
-}
-
 static int
 parse_mdoc_Xr(struct mpage *mpage, const struct mdoc_node *n)
 {
@@ -1512,10 +1561,7 @@ parse_mdoc_Xr(struct mpage *mpage, const struct mdoc_node *n)
                return(0);
        }
 
-       if (-1 == asprintf(&cp, "%s(%s)", n->string, n->next->string)) {
-               perror(NULL);
-               exit((int)MANDOCLEVEL_SYSERR);
-       }
+       mandoc_asprintf(&cp, "%s(%s)", n->string, n->next->string);
        putkey(mpage, cp, TYPE_Xr);
        free(cp);
        return(0);
@@ -1524,44 +1570,18 @@ parse_mdoc_Xr(struct mpage *mpage, const struct mdoc_node *n)
 static int
 parse_mdoc_Nd(struct mpage *mpage, const struct mdoc_node *n)
 {
-       size_t           sz;
-
-       if (MDOC_BODY != n->type)
-               return(0);
 
-       /*
-        * Special-case the `Nd' because we need to put the description
-        * into the document table.
-        */
-
-       for (n = n->child; NULL != n; n = n->next) {
-               if (MDOC_TEXT == n->type) {
-                       if (NULL != mpage->desc) {
-                               sz = strlen(mpage->desc) +
-                                    strlen(n->string) + 2;
-                               mpage->desc = mandoc_realloc(
-                                   mpage->desc, sz);
-                               strlcat(mpage->desc, " ", sz);
-                               strlcat(mpage->desc, n->string, sz);
-                       } else
-                               mpage->desc = mandoc_strdup(n->string);
-               }
-               if (NULL != n->child)
-                       parse_mdoc_Nd(mpage, n);
-       }
-       return(1);
+       if (MDOC_BODY == n->type)
+               mdoc_deroff(&mpage->desc, n);
+       return(0);
 }
 
 static int
 parse_mdoc_Nm(struct mpage *mpage, const struct mdoc_node *n)
 {
 
-       if (SEC_NAME == n->sec)
-               return(1);
-       else if (SEC_SYNOPSIS != n->sec || MDOC_HEAD != n->type)
-               return(0);
-
-       return(1);
+       return(SEC_NAME == n->sec ||
+           (SEC_SYNOPSIS == n->sec && MDOC_HEAD == n->type));
 }
 
 static int
@@ -1595,12 +1615,24 @@ putkeys(const struct mpage *mpage,
        const char *cp, size_t sz, uint64_t v)
 {
        struct str      *s;
-       unsigned int     slot;
        const char      *end;
+       uint64_t         mask;
+       unsigned int     slot;
+       int              i;
 
        if (0 == sz)
                return;
 
+       if (verb > 1) {
+               for (i = 0, mask = 1;
+                    i < mansearch_keymax;
+                    i++, mask <<= 1)
+                       if (mask & v)
+                               break;
+               say(mpage->mlinks->file, "Adding key %s=%*s",
+                   mansearch_keynames[i], sz, cp);
+       }
+
        end = cp + sz;
        slot = ohash_qlookupi(&strings, cp, &end);
        s = ohash_find(&strings, slot);
@@ -1670,26 +1702,27 @@ utf8(unsigned int cp, char out[7])
 }
 
 /*
- * Store the UTF-8 version of a key, or alias the pointer if the key has
- * no UTF-8 transcription marks in it.
+ * Store the rendered version of a key, or alias the pointer
+ * if the key contains no escape sequences.
  */
 static void
-utf8key(struct mchars *mc, struct str *key)
+render_key(struct mchars *mc, struct str *key)
 {
        size_t           sz, bsz, pos;
-       char             utfbuf[7], res[5];
+       char             utfbuf[7], res[6];
        char            *buf;
        const char      *seq, *cpp, *val;
        int              len, u;
        enum mandoc_esc  esc;
 
-       assert(NULL == key->utf8);
+       assert(NULL == key->rendered);
 
        res[0] = '\\';
        res[1] = '\t';
        res[2] = ASCII_NBRSP;
        res[3] = ASCII_HYPH;
-       res[4] = '\0';
+       res[4] = ASCII_BREAK;
+       res[5] = '\0';
 
        val = key->key;
        bsz = strlen(val);
@@ -1699,7 +1732,7 @@ utf8key(struct mchars *mc, struct str *key)
         * pointer as ourselvse and get out of here.
         */
        if (strcspn(val, res) == bsz) {
-               key->utf8 = key->key;
+               key->rendered = key->key;
                return;
        } 
 
@@ -1720,136 +1753,133 @@ utf8key(struct mchars *mc, struct str *key)
                        val += sz;
                }
 
-               if (ASCII_HYPH == *val) {
+               switch (*val) {
+               case (ASCII_HYPH):
                        buf[pos++] = '-';
                        val++;
                        continue;
-               } else if ('\t' == *val || ASCII_NBRSP == *val) {
+               case ('\t'):
+                       /* FALLTHROUGH */
+               case (ASCII_NBRSP):
                        buf[pos++] = ' ';
                        val++;
+                       /* FALLTHROUGH */
+               case (ASCII_BREAK):
                        continue;
-               } else if ('\\' != *val)
+               default:
+                       break;
+               }
+               if ('\\' != *val)
                        break;
 
                /* Read past the slash. */
 
                val++;
-               u = 0;
 
                /*
                 * Parse the escape sequence and see if it's a
                 * predefined character or special character.
                 */
+
                esc = mandoc_escape
                        ((const char **)&val, &seq, &len);
                if (ESCAPE_ERROR == esc)
                        break;
-
                if (ESCAPE_SPECIAL != esc)
                        continue;
-               if (0 == (u = mchars_spec2cp(mc, seq, len)))
-                       continue;
 
                /*
-                * If we have a Unicode codepoint, try to convert that
-                * to a UTF-8 byte string.
+                * Render the special character
+                * as either UTF-8 or ASCII.
                 */
-               cpp = utfbuf;
-               if (0 == (sz = utf8(u, utfbuf)))
-                       continue;
+
+               if (write_utf8) {
+                       if (0 == (u = mchars_spec2cp(mc, seq, len)))
+                               continue;
+                       cpp = utfbuf;
+                       if (0 == (sz = utf8(u, utfbuf)))
+                               continue;
+                       sz = strlen(cpp);
+               } else {
+                       cpp = mchars_spec2str(mc, seq, len, &sz);
+                       if (NULL == cpp)
+                               continue;
+                       if (ASCII_NBRSP == *cpp) {
+                               cpp = " ";
+                               sz = 1;
+                       }
+               }
 
                /* Copy the rendered glyph into the stream. */
 
-               sz = strlen(cpp);
                bsz += sz;
-
                buf = mandoc_realloc(buf, bsz);
-
                memcpy(&buf[pos], cpp, sz);
                pos += sz;
        }
 
        buf[pos] = '\0';
-       key->utf8 = buf;
+       key->rendered = buf;
+}
+
+static void
+dbadd_mlink(const struct mlink *mlink)
+{
+       size_t           i;
+
+       i = 1;
+       SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->dsec);
+       SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->arch);
+       SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->name);
+       SQL_BIND_INT64(stmts[STMT_INSERT_LINK], i, mlink->mpage->recno);
+       SQL_STEP(stmts[STMT_INSERT_LINK]);
+       sqlite3_reset(stmts[STMT_INSERT_LINK]);
 }
 
 /*
  * Flush the current page's terms (and their bits) into the database.
  * Wrap the entire set of additions in a transaction to make sqlite be a
  * little faster.
- * Also, UTF-8-encode the description at the last possible moment.
+ * Also, handle escape sequences at the last possible moment.
  */
 static void
-dbindex(const struct mpage *mpage, struct mchars *mc)
+dbadd(struct mpage *mpage, struct mchars *mc)
 {
        struct mlink    *mlink;
        struct str      *key;
-       const char      *desc;
-       int64_t          recno;
        size_t           i;
        unsigned int     slot;
 
        if (verb)
-               say(mpage->mlinks->file, "Adding to index");
+               say(mpage->mlinks->file, "Adding to database");
 
        if (nodb)
                return;
 
-       desc = "";
-       if (NULL != mpage->desc && '\0' != *mpage->desc) {
-               key = ohash_find(&strings,
-                       ohash_qlookup(&strings, mpage->desc));
-               assert(NULL != key);
-               if (NULL == key->utf8)
-                       utf8key(mc, key);
-               desc = key->utf8;
-       }
-
-       SQL_EXEC("BEGIN TRANSACTION");
-
        i = 1;
-       /*
-        * XXX The following three lines are obsolete
-        * and only kept for backward compatibility
-        * until apropos(1) and friends have caught up.
-        */
-       SQL_BIND_TEXT(stmts[STMT_INSERT_PAGE], i, mpage->mlinks->file);
-       SQL_BIND_TEXT(stmts[STMT_INSERT_PAGE], i, mpage->mlinks->dsec);
-       SQL_BIND_TEXT(stmts[STMT_INSERT_PAGE], i, mpage->mlinks->arch);
-       SQL_BIND_TEXT(stmts[STMT_INSERT_PAGE], i, desc);
        SQL_BIND_INT(stmts[STMT_INSERT_PAGE], i, FORM_SRC == mpage->form);
        SQL_STEP(stmts[STMT_INSERT_PAGE]);
-       recno = sqlite3_last_insert_rowid(db);
+       mpage->recno = sqlite3_last_insert_rowid(db);
        sqlite3_reset(stmts[STMT_INSERT_PAGE]);
 
-       for (mlink = mpage->mlinks; mlink; mlink = mlink->next) {
-               i = 1;
-               SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->file);
-               SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->dsec);
-               SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->arch);
-               SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->name);
-               SQL_BIND_INT64(stmts[STMT_INSERT_LINK], i, recno);
-               SQL_STEP(stmts[STMT_INSERT_LINK]);
-               sqlite3_reset(stmts[STMT_INSERT_LINK]);
-       }
+       for (mlink = mpage->mlinks; mlink; mlink = mlink->next)
+               dbadd_mlink(mlink);
 
        for (key = ohash_first(&strings, &slot); NULL != key;
             key = ohash_next(&strings, &slot)) {
                assert(key->mpage == mpage);
-               if (NULL == key->utf8)
-                       utf8key(mc, key);
+               if (NULL == key->rendered)
+                       render_key(mc, key);
                i = 1;
                SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, key->mask);
-               SQL_BIND_TEXT(stmts[STMT_INSERT_KEY], i, key->utf8);
-               SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, recno);
+               SQL_BIND_TEXT(stmts[STMT_INSERT_KEY], i, key->rendered);
+               SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, mpage->recno);
                SQL_STEP(stmts[STMT_INSERT_KEY]);
                sqlite3_reset(stmts[STMT_INSERT_KEY]);
-               if (key->utf8 != key->key)
-                       free(key->utf8);
+               if (key->rendered != key->key)
+                       free(key->rendered);
                free(key);
        }
-
-       SQL_EXEC("END TRANSACTION");
 }
 
 static void
@@ -1860,20 +1890,31 @@ dbprune(void)
        size_t           i;
        unsigned int     slot;
 
-       if (nodb)
-               return;
+       if (0 == nodb)
+               SQL_EXEC("BEGIN TRANSACTION");
 
-       mpage = ohash_first(&mpages, &slot);
-       while (NULL != mpage) {
+       for (mpage = ohash_first(&mpages, &slot); NULL != mpage;
+            mpage = ohash_next(&mpages, &slot)) {
                mlink = mpage->mlinks;
-               i = 1;
-               SQL_BIND_TEXT(stmts[STMT_DELETE_PAGE], i, mlink->file);
-               SQL_STEP(stmts[STMT_DELETE_PAGE]);
-               sqlite3_reset(stmts[STMT_DELETE_PAGE]);
                if (verb)
-                       say(mlink->file, "Deleted from index");
-               mpage = ohash_next(&mpages, &slot);
+                       say(mlink->file, "Deleting from database");
+               if (nodb)
+                       continue;
+               for ( ; NULL != mlink; mlink = mlink->next) {
+                       i = 1;
+                       SQL_BIND_TEXT(stmts[STMT_DELETE_PAGE],
+                           i, mlink->dsec);
+                       SQL_BIND_TEXT(stmts[STMT_DELETE_PAGE],
+                           i, mlink->arch);
+                       SQL_BIND_TEXT(stmts[STMT_DELETE_PAGE],
+                           i, mlink->name);
+                       SQL_STEP(stmts[STMT_DELETE_PAGE]);
+                       sqlite3_reset(stmts[STMT_DELETE_PAGE]);
+               }
        }
+
+       if (0 == nodb)
+               SQL_EXEC("END TRANSACTION");
 }
 
 /*
@@ -1884,6 +1925,8 @@ static void
 dbclose(int real)
 {
        size_t           i;
+       int              status;
+       pid_t            child;
 
        if (nodb)
                return;
@@ -1899,9 +1942,59 @@ dbclose(int real)
        if (real)
                return;
 
-       if (-1 == rename(MANDOC_DB "~", MANDOC_DB)) {
+       if ('\0' == *tempfilename) {
+               if (-1 == rename(MANDOC_DB "~", MANDOC_DB)) {
+                       exitcode = (int)MANDOCLEVEL_SYSERR;
+                       say(MANDOC_DB, "&rename");
+               }
+               return;
+       }
+
+       switch (child = fork()) {
+       case (-1):
                exitcode = (int)MANDOCLEVEL_SYSERR;
-               say(MANDOC_DB, NULL);
+               say("", "&fork cmp");
+               return;
+       case (0):
+               execlp("cmp", "cmp", "-s",
+                   tempfilename, MANDOC_DB, NULL);
+               say("", "&exec cmp");
+               exit(0);
+       default:
+               break;
+       }
+       if (-1 == waitpid(child, &status, 0)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "&wait cmp");
+       } else if (WIFSIGNALED(status)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "cmp died from signal %d", WTERMSIG(status));
+       } else if (WEXITSTATUS(status)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(MANDOC_DB,
+                   "Data changed, but cannot replace database");
+       }
+
+       *strrchr(tempfilename, '/') = '\0';
+       switch (child = fork()) {
+       case (-1):
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "&fork rm");
+               return;
+       case (0):
+               execlp("rm", "rm", "-rf", tempfilename, NULL);
+               say("", "&exec rm");
+               exit((int)MANDOCLEVEL_SYSERR);
+       default:
+               break;
+       }
+       if (-1 == waitpid(child, &status, 0)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "&wait rm");
+       } else if (WIFSIGNALED(status) || WEXITSTATUS(status)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "%s: Cannot remove temporary directory",
+                   tempfilename);
        }
 }
 
@@ -1916,91 +2009,100 @@ dbclose(int real)
 static int
 dbopen(int real)
 {
-       const char      *file, *sql;
+       const char      *sql;
        int              rc, ofl;
 
        if (nodb) 
                return(1);
 
+       *tempfilename = '\0';
        ofl = SQLITE_OPEN_READWRITE;
-       if (0 == real) {
-               file = MANDOC_DB "~";
-               if (-1 == remove(file) && ENOENT != errno) {
+
+       if (real) {
+               rc = sqlite3_open_v2(MANDOC_DB, &db, ofl, NULL);
+               if (SQLITE_OK != rc) {
                        exitcode = (int)MANDOCLEVEL_SYSERR;
-                       say(file, NULL);
+                       say(MANDOC_DB, "%s", sqlite3_errmsg(db));
                        return(0);
                }
-               ofl |= SQLITE_OPEN_EXCLUSIVE;
-       } else
-               file = MANDOC_DB;
+               goto prepare_statements;
+       }
 
-       rc = sqlite3_open_v2(file, &db, ofl, NULL);
+       ofl |= SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE;
+
+       remove(MANDOC_DB "~");
+       rc = sqlite3_open_v2(MANDOC_DB "~", &db, ofl, NULL);
        if (SQLITE_OK == rc) 
-               goto prepare_statements;
-       if (SQLITE_CANTOPEN != rc) {
+               goto create_tables;
+       if (MPARSE_QUICK & mparse_options) {
                exitcode = (int)MANDOCLEVEL_SYSERR;
-               say(file, NULL);
+               say(MANDOC_DB "~", "%s", sqlite3_errmsg(db));
                return(0);
        }
 
-       sqlite3_close(db);
-       db = NULL;
-
-       if (SQLITE_OK != (rc = sqlite3_open(file, &db))) {
+       if (strlcpy(tempfilename, "/tmp/mandocdb.XXXXXX",
+           sizeof(tempfilename)) >= sizeof(tempfilename)) {
                exitcode = (int)MANDOCLEVEL_SYSERR;
-               say(file, NULL);
+               say("", "/tmp/mandocdb.XXXXXX: Filename too long");
+               return(0);
+       }
+       if (NULL == mkdtemp(tempfilename)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "&%s", tempfilename);
+               return(0);
+       }
+       if (strlcat(tempfilename, "/" MANDOC_DB,
+           sizeof(tempfilename)) >= sizeof(tempfilename)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "%s/" MANDOC_DB ": Filename too long",
+                   tempfilename);
+               return(0);
+       }
+       rc = sqlite3_open_v2(tempfilename, &db, ofl, NULL);
+       if (SQLITE_OK != rc) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "%s: %s", tempfilename, sqlite3_errmsg(db));
                return(0);
        }
 
-       /*
-        * XXX The first three columns in table mpages are obsolete
-        * and only kept for backward compatibility
-        * until apropos(1) and friends have caught up.
-        */
+create_tables:
        sql = "CREATE TABLE \"mpages\" (\n"
-             " \"file\" TEXT NOT NULL,\n"
-             " \"sec\" TEXT NOT NULL,\n"
-             " \"arch\" TEXT NOT NULL,\n"
-             " \"desc\" TEXT NOT NULL,\n"
              " \"form\" INTEGER NOT NULL,\n"
              " \"id\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n"
              ");\n"
              "\n"
              "CREATE TABLE \"mlinks\" (\n"
-             " \"file\" TEXT NOT NULL,\n"
              " \"sec\" TEXT NOT NULL,\n"
              " \"arch\" TEXT NOT NULL,\n"
              " \"name\" TEXT NOT NULL,\n"
              " \"pageid\" INTEGER NOT NULL REFERENCES mpages(id) "
-               "ON DELETE CASCADE,\n"
-             " \"id\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n"
+               "ON DELETE CASCADE\n"
              ");\n"
              "\n"
              "CREATE TABLE \"keys\" (\n"
              " \"bits\" INTEGER NOT NULL,\n"
              " \"key\" TEXT NOT NULL,\n"
              " \"pageid\" INTEGER NOT NULL REFERENCES mpages(id) "
-               "ON DELETE CASCADE,\n"
-             " \"id\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n"
-             ");\n"
-             "\n"
-             "CREATE INDEX \"key_index\" ON keys (key);\n";
+               "ON DELETE CASCADE\n"
+             ");\n";
 
        if (SQLITE_OK != sqlite3_exec(db, sql, NULL, NULL, NULL)) {
                exitcode = (int)MANDOCLEVEL_SYSERR;
-               say(file, "%s", sqlite3_errmsg(db));
+               say(MANDOC_DB, "%s", sqlite3_errmsg(db));
                return(0);
        }
 
 prepare_statements:
        SQL_EXEC("PRAGMA foreign_keys = ON");
-       sql = "DELETE FROM mpages where file=?";
+       sql = "DELETE FROM mpages WHERE id IN "
+               "(SELECT pageid FROM mlinks WHERE "
+               "sec=? AND arch=? AND name=?)";
        sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_DELETE_PAGE], NULL);
        sql = "INSERT INTO mpages "
-               "(file,sec,arch,desc,form) VALUES (?,?,?,?,?)";
+               "(form) VALUES (?)";
        sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_PAGE], NULL);
        sql = "INSERT INTO mlinks "
-               "(file,sec,arch,name,pageid) VALUES (?,?,?,?,?)";
+               "(sec,arch,name,pageid) VALUES (?,?,?,?)";
        sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_LINK], NULL);
        sql = "INSERT INTO keys "
                "(bits,key,pageid) VALUES (?,?,?)";
@@ -2056,12 +2158,12 @@ set_basedir(const char *targetdir)
                if (NULL == getcwd(startdir, PATH_MAX)) {
                        exitcode = (int)MANDOCLEVEL_SYSERR;
                        if (NULL != targetdir)
-                               say(".", NULL);
+                               say("", "&getcwd");
                        return(0);
                }
                if (-1 == (fd = open(startdir, O_RDONLY, 0))) {
                        exitcode = (int)MANDOCLEVEL_SYSERR;
-                       say(startdir, NULL);
+                       say("", "&open %s", startdir);
                        return(0);
                }
                if (NULL == targetdir)
@@ -2073,7 +2175,7 @@ set_basedir(const char *targetdir)
                        close(fd);
                        basedir[0] = '\0';
                        exitcode = (int)MANDOCLEVEL_SYSERR;
-                       say(startdir, NULL);
+                       say("", "&chdir %s", startdir);
                        return(0);
                }
                if (NULL == targetdir) {
@@ -2084,11 +2186,11 @@ set_basedir(const char *targetdir)
        if (NULL == realpath(targetdir, basedir)) {
                basedir[0] = '\0';
                exitcode = (int)MANDOCLEVEL_BADARG;
-               say(targetdir, NULL);
+               say("", "&%s: realpath", targetdir);
                return(0);
        } else if (-1 == chdir(basedir)) {
                exitcode = (int)MANDOCLEVEL_BADARG;
-               say("", NULL);
+               say("", "&chdir");
                return(0);
        }
        return(1);
@@ -2098,6 +2200,7 @@ static void
 say(const char *file, const char *format, ...)
 {
        va_list          ap;
+       int              use_errno;
 
        if ('\0' != *basedir)
                fprintf(stderr, "%s", basedir);
@@ -2105,16 +2208,32 @@ say(const char *file, const char *format, ...)
                fputs("//", stderr);
        if ('\0' != *file)
                fprintf(stderr, "%s", file);
-       fputs(": ", stderr);
 
-       if (NULL == format) {
-               perror(NULL);
-               return;
+       use_errno = 1;
+       if (NULL != format) {
+               switch (*format) {
+               case ('&'):
+                       format++;
+                       break;
+               case ('\0'):
+                       format = NULL;
+                       break;
+               default:
+                       use_errno = 0;
+                       break;
+               }
        }
-
-       va_start(ap, format);
-       vfprintf(stderr, format, ap);
-       va_end(ap);
-
-       fputc('\n', stderr);
+       if (NULL != format) {
+               if ('\0' != *basedir || '\0' != *file)
+                       fputs(": ", stderr);
+               va_start(ap, format);
+               vfprintf(stderr, format, ap);
+               va_end(ap);
+       }
+       if (use_errno) {
+               if ('\0' != *basedir || '\0' != *file || NULL != format)
+                       fputs(": ", stderr);
+               perror(NULL);
+       } else
+               fputc('\n', stderr);
 }