update after recent code changes

[mandoc.git] / mandocdb.c

diff --git a/mandocdb.c b/mandocdb.c
index 36e292d39a8d8eb27c3377e058d44b7770a6c55d..b3e34d05958d2198bdcba9b6add7e9ed7d3d0079 100644 (file)
--- a/mandocdb.c
+++ b/mandocdb.c
@@ -1,7 +1,7 @@
-/*     $Id: mandocdb.c,v 1.78 2013/12/26 22:12:46 schwarze Exp $ */
+/*     $Id: mandocdb.c,v 1.153 2014/06/21 16:18:25 schwarze Exp $ */

 /*
  * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
 /*
  * 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
  *
  * 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>
 #endif
 
 #include <sys/stat.h>

+#include <sys/wait.h>

 
 #include <assert.h>
 #include <ctype.h>
 
 #include <assert.h>
 #include <ctype.h>


@@ -45,27 +46,31 @@
 #include "mdoc.h"
 #include "man.h"
 #include "mandoc.h"
 #include "mdoc.h"
 #include "man.h"
 #include "mandoc.h"

+#include "mandoc_aux.h"

 #include "manpath.h"
 #include "mansearch.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)) \
 #define        SQL_EXEC(_v) \
        if (SQLITE_OK != sqlite3_exec(db, (_v), NULL, NULL, NULL)) \

-               fprintf(stderr, "%s\n", sqlite3_errmsg(db))
+               say("", "%s: %s", (_v), sqlite3_errmsg(db))

 #define        SQL_BIND_TEXT(_s, _i, _v) \
        if (SQLITE_OK != sqlite3_bind_text \
                ((_s), (_i)++, (_v), -1, SQLITE_STATIC)) \
 #define        SQL_BIND_TEXT(_s, _i, _v) \
        if (SQLITE_OK != sqlite3_bind_text \
                ((_s), (_i)++, (_v), -1, SQLITE_STATIC)) \

-               fprintf(stderr, "%s\n", sqlite3_errmsg(db))
+               say(mlink->file, "%s", sqlite3_errmsg(db))

 #define        SQL_BIND_INT(_s, _i, _v) \
        if (SQLITE_OK != sqlite3_bind_int \
                ((_s), (_i)++, (_v))) \
 #define        SQL_BIND_INT(_s, _i, _v) \
        if (SQLITE_OK != sqlite3_bind_int \
                ((_s), (_i)++, (_v))) \

-               fprintf(stderr, "%s\n", sqlite3_errmsg(db))
+               say(mlink->file, "%s", sqlite3_errmsg(db))

 #define        SQL_BIND_INT64(_s, _i, _v) \
        if (SQLITE_OK != sqlite3_bind_int64 \
                ((_s), (_i)++, (_v))) \
 #define        SQL_BIND_INT64(_s, _i, _v) \
        if (SQLITE_OK != sqlite3_bind_int64 \
                ((_s), (_i)++, (_v))) \

-               fprintf(stderr, "%s\n", sqlite3_errmsg(db))
+               say(mlink->file, "%s", sqlite3_errmsg(db))

 #define SQL_STEP(_s) \
        if (SQLITE_DONE != sqlite3_step((_s))) \
 #define SQL_STEP(_s) \
        if (SQLITE_DONE != sqlite3_step((_s))) \

-               fprintf(stderr, "%s\n", sqlite3_errmsg(db))
+               say(mlink->file, "%s", sqlite3_errmsg(db))

 
 enum   op {
        OP_DEFAULT = 0, /* new dbs from dir list or default config */
 
 enum   op {
        OP_DEFAULT = 0, /* new dbs from dir list or default config */


@@ -76,45 +81,53 @@ enum        op {
 };
 
 enum   form {
 };
 
 enum   form {

-       FORM_SRC, /* format is -man or -mdoc */
-       FORM_CAT, /* format is cat */
-       FORM_NONE /* format is unknown */
+       FORM_NONE,  /* format is unknown */
+       FORM_SRC,   /* format is -man or -mdoc */
+       FORM_CAT    /* format is cat */

 };
 
 struct str {
 };
 
 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 */
        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 id {
-       ino_t            ino;
-       dev_t            dev;
+struct inodev {
+       ino_t            st_ino;
+       dev_t            st_dev;

 };
 
 struct mpage {
 };
 
 struct mpage {

-       struct id        id; /* used for hashing routine */
-       struct mpage    *next; /* next in mpages_list */
-       enum form        dform; /* path-cued form */
-       enum form        sform; /* suffix-cued form */
-       char             file[PATH_MAX]; /* filename rel. to manpath */
-       char            *desc; /* parsed description */
-       char            *name; /* name (from filename) (not empty) */
-       char            *sec; /* suffix-cued section (or empty) */
-       char            *dsec; /* path-cued section (or empty) */
-       char            *arch; /* path-cued arch. (or empty) */
+       struct inodev    inodev;  /* used for hashing routine */
+       int64_t          pageid;  /* pageid in mpages SQL table */
+       enum form        form;    /* format from file content */
+       char            *sec;     /* section from file content */
+       char            *arch;    /* architecture from file content */
+       char            *title;   /* title from file content */
+       char            *desc;    /* description from file content */
+       struct mlink    *mlinks;  /* singly linked list */

 };
 
 };
 

-struct title {
-       char            *title; /* name(sec/arch) given inside the file */
-       char            *file; /* file name in case of mismatch */
+struct mlink {
+       char             file[PATH_MAX]; /* filename rel. to manpath */
+       enum form        dform;   /* format from directory */
+       enum form        fform;   /* format from file name suffix */
+       char            *dsec;    /* section from directory */
+       char            *arch;    /* architecture from directory */
+       char            *name;    /* name from file name (not empty) */
+       char            *fsec;    /* section from file name suffix */
+       struct mlink    *next;    /* singly linked list */
+       struct mpage    *mpage;   /* parent */
+       int              gzip;    /* filename has a .gz suffix */

 };
 
 enum   stmt {
 };
 
 enum   stmt {

-       STMT_DELETE = 0, /* delete manpage */
-       STMT_INSERT_DOC, /* insert manpage */
-       STMT_INSERT_KEY, /* insert parsed key */
+       STMT_DELETE_PAGE = 0,   /* delete mpage */
+       STMT_INSERT_PAGE,       /* insert mpage */
+       STMT_INSERT_LINK,       /* insert mlink */
+       STMT_INSERT_NAME,       /* insert name */
+       STMT_INSERT_KEY,        /* insert parsed key */

        STMT__MAX
 };
 
        STMT__MAX
 };
 


@@ -126,60 +139,61 @@ struct    mdoc_handler {
 };
 
 static void     dbclose(int);
 };
 
 static void     dbclose(int);

-static void     dbindex(struct mchars *, int, const struct mpage *);
+static void     dbadd(struct mpage *, struct mchars *);
+static void     dbadd_mlink(const struct mlink *mlink);

 static int      dbopen(int);
 static void     dbprune(void);
 static int      dbopen(int);
 static void     dbprune(void);

-static void     fileadd(struct mpage *);
-static int      filecheck(const char *);

 static void     filescan(const char *);
 static void    *hash_alloc(size_t, void *);
 static void     filescan(const char *);
 static void    *hash_alloc(size_t, void *);

-static void     hash_free(void *, size_t, void *);
-static void    *hash_halloc(size_t, void *);
-static void     inoadd(const struct stat *, struct mpage *);
-static int      inocheck(const struct stat *);
-static void     ofadd(int, const char *, const char *, const char *,
-                       const char *, const char *, const struct stat *);
+static void     hash_free(void *, void *);
+static void    *hash_calloc(size_t, size_t, void *);
+static void     mlink_add(struct mlink *, const struct stat *);
+static void     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_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     names_check(void);
+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 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_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 int      parse_mdoc_Xr(struct mpage *, const struct mdoc_node *);

-static int      set_basedir(const char *);
-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     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 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 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 char            *progname;

-static int              use_all; /* use all found files */

 static int              nodb; /* no database changes */
 static int              nodb; /* no database changes */

-static int              verb; /* print what we're doing */
-static int              warnings; /* warn about crap */
+static int              mparse_options; /* abort the parse early */
+static int              use_all; /* use all found files */
+static int              debug; /* 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 int              exitcode; /* to be returned by main */

-static enum op          op; /* operational mode */
+static enum op          op; /* operational mode */

 static char             basedir[PATH_MAX]; /* current base directory */
 static struct ohash     mpages; /* table of distinct manual pages */
 static char             basedir[PATH_MAX]; /* current base directory */
 static struct ohash     mpages; /* table of distinct manual pages */

-static struct ohash     filenames; /* table of filenames */
+static struct ohash     mlinks; /* table of directory entries */
+static struct ohash     names; /* table of all names */

 static struct ohash     strings; /* table of all strings */
 static struct ohash     strings; /* table of all strings */

-static struct mpage    *mpages_list = NULL; /* vector of files to parse */

 static sqlite3         *db = NULL; /* current database */
 static sqlite3_stmt    *stmts[STMT__MAX]; /* current statements */
 static sqlite3         *db = NULL; /* current database */
 static sqlite3_stmt    *stmts[STMT__MAX]; /* current statements */

+static uint64_t         name_mask;

 
 static const struct mdoc_handler mdocs[MDOC_MAX] = {
        { NULL, 0 },  /* Ap */
 
 static const struct mdoc_handler mdocs[MDOC_MAX] = {
        { NULL, 0 },  /* Ap */


@@ -211,15 +225,15 @@ static    const struct mdoc_handler mdocs[MDOC_MAX] = {
        { parse_mdoc_Fn, 0 },  /* Fn */
        { NULL, TYPE_Ft },  /* Ft */
        { NULL, TYPE_Ic },  /* Ic */
        { 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 */
        { NULL, TYPE_Li },  /* Li */

-       { parse_mdoc_Nd, TYPE_Nd },  /* Nd */
-       { parse_mdoc_Nm, TYPE_Nm },  /* Nm */
+       { parse_mdoc_Nd, 0 },  /* Nd */
+       { parse_mdoc_Nm, 0 },  /* Nm */

        { NULL, 0 },  /* Op */
        { NULL, 0 },  /* Ot */
        { NULL, TYPE_Pa },  /* Pa */
        { NULL, 0 },  /* Rv */
        { NULL, 0 },  /* Op */
        { 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 */
        { NULL, TYPE_Va },  /* Va */
        { parse_mdoc_body, TYPE_Va },  /* Vt */
        { parse_mdoc_Xr, 0 },  /* Xr */


@@ -306,6 +320,7 @@ static      const struct mdoc_handler mdocs[MDOC_MAX] = {
        { NULL, 0 },  /* Ta */
 };
 
        { NULL, 0 },  /* Ta */
 };
 

+

 int
 main(int argc, char *argv[])
 {
 int
 main(int argc, char *argv[])
 {


@@ -315,17 +330,17 @@ main(int argc, char *argv[])
        struct mchars    *mc;
        struct manpaths   dirs;
        struct mparse    *mp;
        struct mchars    *mc;
        struct manpaths   dirs;
        struct mparse    *mp;

-       struct ohash_info mpages_info, filename_info;
+       struct ohash_info mpages_info, mlinks_info;

 
        memset(stmts, 0, STMT__MAX * sizeof(sqlite3_stmt *));
        memset(&dirs, 0, sizeof(struct manpaths));
 
 
        memset(stmts, 0, STMT__MAX * sizeof(sqlite3_stmt *));
        memset(&dirs, 0, sizeof(struct manpaths));
 

-       mpages_info.alloc  = filename_info.alloc  = hash_alloc;
-       mpages_info.halloc = filename_info.halloc = hash_halloc;
-       mpages_info.hfree  = filename_info.hfree  = hash_free;
+       mpages_info.alloc  = mlinks_info.alloc  = hash_alloc;
+       mpages_info.calloc = mlinks_info.calloc = hash_calloc;
+       mpages_info.free  = mlinks_info.free  = hash_free;

 
 

-       mpages_info.key_offset = offsetof(struct mpage, id);
-       filename_info.key_offset = offsetof(struct mpage, file);
+       mpages_info.key_offset = offsetof(struct mpage, inodev);
+       mlinks_info.key_offset = offsetof(struct mlink, file);

 
        progname = strrchr(argv[0], '/');
        if (progname == NULL)
 
        progname = strrchr(argv[0], '/');
        if (progname == NULL)


@@ -334,53 +349,69 @@ main(int argc, char *argv[])
                ++progname;
 
        /*
                ++progname;
 
        /*

-        * We accept a few different invocations.  
+        * We accept a few different invocations.

         * The CHECKOP macro makes sure that invocation styles don't
         * clobber each other.
         */
 #define        CHECKOP(_op, _ch) do \
        if (OP_DEFAULT != (_op)) { \
         * The CHECKOP macro makes sure that invocation styles don't
         * clobber each other.
         */
 #define        CHECKOP(_op, _ch) do \
        if (OP_DEFAULT != (_op)) { \

-               fprintf(stderr, "-%c: Conflicting option\n", (_ch)); \
+               fprintf(stderr, "%s: -%c: Conflicting option\n", \
+                   progname, (_ch)); \

                goto usage; \
        } while (/*CONSTCOND*/0)
 
        path_arg = NULL;
        op = OP_DEFAULT;
 
                goto usage; \
        } while (/*CONSTCOND*/0)
 
        path_arg = NULL;
        op = OP_DEFAULT;
 

-       while (-1 != (ch = getopt(argc, argv, "aC:d:ntu:vW")))
+       while (-1 != (ch = getopt(argc, argv, "aC:Dd:npQT:tu:v")))

                switch (ch) {
                switch (ch) {

-               case ('a'):
+               case 'a':

                        use_all = 1;
                        break;
                        use_all = 1;
                        break;

-               case ('C'):
+               case 'C':

                        CHECKOP(op, ch);
                        path_arg = optarg;
                        op = OP_CONFFILE;
                        break;
                        CHECKOP(op, ch);
                        path_arg = optarg;
                        op = OP_CONFFILE;
                        break;

-               case ('d'):
+               case 'D':
+                       debug++;
+                       break;
+               case 'd':

                        CHECKOP(op, ch);
                        path_arg = optarg;
                        op = OP_UPDATE;
                        break;
                        CHECKOP(op, ch);
                        path_arg = optarg;
                        op = OP_UPDATE;
                        break;

-               case ('n'):
+               case 'n':

                        nodb = 1;
                        break;
                        nodb = 1;
                        break;

-               case ('t'):
+               case 'p':
+                       warnings = 1;
+                       break;
+               case 'Q':
+                       mparse_options |= MPARSE_QUICK;
+                       break;
+               case 'T':
+                       if (strcmp(optarg, "utf8")) {
+                               fprintf(stderr, "%s: -T%s: "
+                                   "Unsupported output format\n",
+                                   progname, optarg);
+                               goto usage;
+                       }
+                       write_utf8 = 1;
+                       break;
+               case 't':

                        CHECKOP(op, ch);
                        dup2(STDOUT_FILENO, STDERR_FILENO);
                        op = OP_TEST;
                        nodb = warnings = 1;
                        break;
                        CHECKOP(op, ch);
                        dup2(STDOUT_FILENO, STDERR_FILENO);
                        op = OP_TEST;
                        nodb = warnings = 1;
                        break;

-               case ('u'):
+               case 'u':

                        CHECKOP(op, ch);
                        path_arg = optarg;
                        op = OP_DELETE;
                        break;
                        CHECKOP(op, ch);
                        path_arg = optarg;
                        op = OP_DELETE;
                        break;

-               case ('v'):
-                       verb++;
-                       break;
-               case ('W'):
-                       warnings = 1;
+               case 'v':
+                       /* Compatibility with espie@'s makewhatis. */

                        break;
                default:
                        goto usage;
                        break;
                default:
                        goto usage;


@@ -390,40 +421,52 @@ main(int argc, char *argv[])
        argv += optind;
 
        if (OP_CONFFILE == op && argc > 0) {
        argv += optind;
 
        if (OP_CONFFILE == op && argc > 0) {

-               fprintf(stderr, "-C: Too many arguments\n");
+               fprintf(stderr, "%s: -C: Too many arguments\n",
+                   progname);

                goto usage;
        }
 
        exitcode = (int)MANDOCLEVEL_OK;
                goto usage;
        }
 
        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);
        mc = mchars_alloc();
 
        ohash_init(&mpages, 6, &mpages_info);

-       ohash_init(&filenames, 6, &filename_info);
+       ohash_init(&mlinks, 6, &mlinks_info);

 
        if (OP_UPDATE == op || OP_DELETE == op || OP_TEST == op) {
 
        if (OP_UPDATE == op || OP_DELETE == op || OP_TEST == op) {

-               /* 
-                * Force processing all files.
-                */
-               use_all = 1;

 
                /*
 
                /*

-                * All of these deal with a specific directory.
-                * Jump into that directory then collect files specified
-                * on the command-line.
+                * Most of these deal with a specific directory.
+                * Jump into that directory first.

                 */
                 */

-               if (0 == set_basedir(path_arg))
-                       goto out;
-               for (i = 0; i < argc; i++)
-                       filescan(argv[i]);
-               if (0 == dbopen(1))
+               if (OP_TEST != op && 0 == set_basedir(path_arg))

                        goto out;
                        goto out;

-               if (OP_TEST != op)
-                       dbprune();
+
+               if (dbopen(1)) {
+                       /*
+                        * The existing database is usable.  Process
+                        * all files specified on the command-line.
+                        */
+                       use_all = 1;
+                       for (i = 0; i < argc; i++)
+                               filescan(argv[i]);
+                       if (OP_TEST != op)
+                               dbprune();
+               } else {
+                       /*
+                        * Database missing or corrupt.
+                        * Recreate from scratch.
+                        */
+                       exitcode = (int)MANDOCLEVEL_OK;
+                       op = OP_DEFAULT;
+                       if (0 == treescan())
+                               goto out;
+                       if (0 == dbopen(0))
+                               goto out;
+               }

                if (OP_DELETE != op)
                if (OP_DELETE != op)

-                       mpages_merge(mc, mp, 0);
-               dbclose(1);
+                       mpages_merge(mc, mp);
+               dbclose(OP_DEFAULT == op ? 0 : 1);

        } else {
                /*
                 * If we have arguments, use them as our manpaths.
        } else {
                /*
                 * If we have arguments, use them as our manpaths.


@@ -431,14 +474,19 @@ main(int argc, char *argv[])
                 * manpath_parse() wants to do it.
                 */
                if (argc > 0) {
                 * manpath_parse() wants to do it.
                 */
                if (argc > 0) {

-                       dirs.paths = mandoc_calloc
-                               (argc, sizeof(char *));
+                       dirs.paths = mandoc_reallocarray(NULL,
+                           argc, sizeof(char *));

                        dirs.sz = (size_t)argc;
                        for (i = 0; i < argc; i++)
                                dirs.paths[i] = mandoc_strdup(argv[i]);
                } else
                        manpath_parse(&dirs, path_arg, NULL, NULL);
 
                        dirs.sz = (size_t)argc;
                        for (i = 0; i < argc; i++)
                                dirs.paths[i] = mandoc_strdup(argv[i]);
                } else
                        manpath_parse(&dirs, path_arg, NULL, NULL);
 

+               if (0 == dirs.sz) {
+                       exitcode = (int)MANDOCLEVEL_BADARG;
+                       say("", "Empty manpath");
+               }
+

                /*
                 * First scan the tree rooted at a base directory, then
                 * build a new database and finally move it into place.
                /*
                 * First scan the tree rooted at a base directory, then
                 * build a new database and finally move it into place.


@@ -454,44 +502,44 @@ main(int argc, char *argv[])
 
                        if (j) {
                                ohash_init(&mpages, 6, &mpages_info);
 
                        if (j) {
                                ohash_init(&mpages, 6, &mpages_info);

-                               ohash_init(&filenames, 6, &filename_info);
+                               ohash_init(&mlinks, 6, &mlinks_info);

                        }
 
                        if (0 == set_basedir(dirs.paths[j]))
                                goto out;
                        if (0 == treescan())
                                goto out;
                        }
 
                        if (0 == set_basedir(dirs.paths[j]))
                                goto out;
                        if (0 == treescan())
                                goto out;

-                       if (0 == set_basedir(dirs.paths[j]))
-                               goto out;

                        if (0 == dbopen(0))
                                goto out;
 
                        if (0 == dbopen(0))
                                goto out;
 

-                       mpages_merge(mc, mp, warnings && !use_all);
+                       mpages_merge(mc, mp);
+                       if (warnings && !nodb &&
+                           ! (MPARSE_QUICK & mparse_options))
+                               names_check();

                        dbclose(0);
 
                        if (j + 1 < dirs.sz) {
                        dbclose(0);
 
                        if (j + 1 < dirs.sz) {

-                               ohash_delete(&mpages);
-                               ohash_delete(&filenames);

                                mpages_free();
                                mpages_free();

+                               ohash_delete(&mpages);
+                               ohash_delete(&mlinks);

                        }
                }
        }
 out:
                        }
                }
        }
 out:

-       set_basedir(NULL);

        manpath_free(&dirs);
        mchars_free(mc);
        mparse_free(mp);
        manpath_free(&dirs);
        mchars_free(mc);
        mparse_free(mp);

-       ohash_delete(&mpages);
-       ohash_delete(&filenames);

        mpages_free();
        mpages_free();

+       ohash_delete(&mpages);
+       ohash_delete(&mlinks);

        return(exitcode);
 usage:
        return(exitcode);
 usage:

-       fprintf(stderr, "usage: %s [-anvW] [-C file]\n"
-                       "       %s [-anvW] dir ...\n"
-                       "       %s [-nvW] -d dir [file ...]\n"
-                       "       %s [-nvW] -u dir [file ...]\n"
-                       "       %s -t file ...\n",
-                      progname, progname, progname, 
+       fprintf(stderr, "usage: %s [-aDnpQ] [-C file] [-Tutf8]\n"
+                       "       %s [-aDnpQ] [-Tutf8] dir ...\n"
+                       "       %s [-DnpQ] [-Tutf8] -d dir [file ...]\n"
+                       "       %s [-Dnp] -u dir [file ...]\n"
+                       "       %s [-Q] -t file ...\n",
+                      progname, progname, progname,

                       progname, progname);
 
        return((int)MANDOCLEVEL_BADARG);
                       progname, progname);
 
        return((int)MANDOCLEVEL_BADARG);


@@ -505,7 +553,7 @@ usage:
  * If use_all has been specified, grok all files.
  * If not, sanitise paths to the following:
  *
  * If use_all has been specified, grok all files.
  * If not, sanitise paths to the following:
  *

- *   [./]man*[/<arch>]/<name>.<section> 
+ *   [./]man*[/<arch>]/<name>.<section>

  *   or
  *   [./]cat<section>[/<arch>]/<name>.0
  *
  *   or
  *   [./]cat<section>[/<arch>]/<name>.0
  *


@@ -514,24 +562,23 @@ usage:
 static int
 treescan(void)
 {
 static int
 treescan(void)
 {

+       char             buf[PATH_MAX];

        FTS             *f;
        FTSENT          *ff;
        FTS             *f;
        FTSENT          *ff;

-       int              dform;
-       char            *sec;
-       const char      *dsec, *arch, *cp, *path;
+       struct mlink    *mlink;
+       int              dform, gzip;
+       char            *dsec, *arch, *fsec, *cp;
+       const char      *path;

        const char      *argv[2];
 
        argv[0] = ".";
        argv[1] = (char *)NULL;
 
        const char      *argv[2];
 
        argv[0] = ".";
        argv[1] = (char *)NULL;
 

-       /*
-        * Walk through all components under the directory, using the
-        * logical descent of files.
-        */
-       f = fts_open((char * const *)argv, FTS_LOGICAL, NULL);
+       f = fts_open((char * const *)argv,
+           FTS_PHYSICAL | FTS_NOCHDIR, NULL);

        if (NULL == f) {
                exitcode = (int)MANDOCLEVEL_SYSERR;
        if (NULL == f) {
                exitcode = (int)MANDOCLEVEL_SYSERR;

-               say("", NULL);
+               say("", "&fts_open");

                return(0);
        }
 
                return(0);
        }
 


@@ -540,76 +587,119 @@ treescan(void)
 
        while (NULL != (ff = fts_read(f))) {
                path = ff->fts_path + 2;
 
        while (NULL != (ff = fts_read(f))) {
                path = ff->fts_path + 2;

+               switch (ff->fts_info) {
+
+               /*
+                * Symbolic links require various sanity checks,
+                * then get handled just like regular files.
+                */
+               case FTS_SL:
+                       if (NULL == realpath(path, buf)) {
+                               if (warnings)
+                                       say(path, "&realpath");
+                               continue;
+                       }
+                       if (strstr(buf, basedir) != buf) {
+                               if (warnings) say("",
+                                   "%s: outside base directory", buf);
+                               continue;
+                       }
+                       /* Use logical inode to avoid mpages dupe. */
+                       if (-1 == stat(path, ff->fts_statp)) {
+                               if (warnings)
+                                       say(path, "&stat");
+                               continue;
+                       }
+                       /* FALLTHROUGH */
+

                /*
                /*

-                * If we're a regular file, add an mpage by using the
+                * If we're a regular file, add an mlink by using the

                 * stored directory data and handling the filename.
                 * stored directory data and handling the filename.

-                * Disallow duplicate (hard-linked) files.

                 */
                 */

-               if (FTS_F == ff->fts_info) {
+               case FTS_F:

                        if (0 == strcmp(path, MANDOC_DB))
                                continue;
                        if ( ! use_all && ff->fts_level < 2) {
                                if (warnings)
                                        say(path, "Extraneous file");
                                continue;
                        if (0 == strcmp(path, MANDOC_DB))
                                continue;
                        if ( ! use_all && ff->fts_level < 2) {
                                if (warnings)
                                        say(path, "Extraneous file");
                                continue;

-                       } else if (inocheck(ff->fts_statp)) {
-                               if (warnings)
-                                       say(path, "Duplicate file");
-                               continue;
-                       } else if (NULL == (sec =
-                                       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,
                                                    "No filename suffix");
                                        continue;
                                }
                                if ( ! use_all) {
                                        if (warnings)
                                                say(path,
                                                    "No filename suffix");
                                        continue;
                                }

-                       } else if (0 == strcmp(++sec, "html")) {
+                       } else if (0 == strcmp(++fsec, "html")) {

                                if (warnings)
                                        say(path, "Skip html");
                                continue;
                                if (warnings)
                                        say(path, "Skip html");
                                continue;

-                       } else if (0 == strcmp(sec, "gz")) {
-                               if (warnings)
-                                       say(path, "Skip gz");
-                               continue;
-                       } else if (0 == strcmp(sec, "ps")) {
+                       } else if (0 == strcmp(fsec, "ps")) {

                                if (warnings)
                                        say(path, "Skip ps");
                                continue;
                                if (warnings)
                                        say(path, "Skip ps");
                                continue;

-                       } else if (0 == strcmp(sec, "pdf")) {
+                       } else if (0 == strcmp(fsec, "pdf")) {

                                if (warnings)
                                        say(path, "Skip pdf");
                                continue;
                        } else if ( ! use_all &&
                                if (warnings)
                                        say(path, "Skip pdf");
                                continue;
                        } else if ( ! use_all &&

-                           ((FORM_SRC == dform && strcmp(sec, dsec)) ||
-                            (FORM_CAT == dform && strcmp(sec, "0")))) {
+                           ((FORM_SRC == dform && strcmp(fsec, dsec)) ||
+                            (FORM_CAT == dform && strcmp(fsec, "0")))) {

                                if (warnings)
                                        say(path, "Wrong filename suffix");
                                continue;
                        } else
                                if (warnings)
                                        say(path, "Wrong filename suffix");
                                continue;
                        } else

-                               sec[-1] = '\0';
-                       ofadd(dform, path, ff->fts_name, dsec, sec,
-                                       arch, ff->fts_statp);
+                               fsec[-1] = '\0';
+
+                       mlink = mandoc_calloc(1, sizeof(struct mlink));
+                       if (strlcpy(mlink->file, path,
+                           sizeof(mlink->file)) >=
+                           sizeof(mlink->file)) {
+                               say(path, "Filename too long");
+                               free(mlink);
+                               continue;
+                       }
+                       mlink->dform = dform;
+                       mlink->dsec = dsec;
+                       mlink->arch = arch;
+                       mlink->name = ff->fts_name;
+                       mlink->fsec = fsec;
+                       mlink->gzip = gzip;
+                       mlink_add(mlink, ff->fts_statp);

                        continue;
                        continue;

-               } else if (FTS_D != ff->fts_info && 
-                               FTS_DP != ff->fts_info) {
+
+               case FTS_D:
+                       /* FALLTHROUGH */
+               case FTS_DP:
+                       break;
+
+               default:

                        if (warnings)
                                say(path, "Not a regular file");
                        continue;
                }
 
                switch (ff->fts_level) {
                        if (warnings)
                                say(path, "Not a regular file");
                        continue;
                }
 
                switch (ff->fts_level) {

-               case (0):
+               case 0:

                        /* Ignore the root directory. */
                        break;
                        /* Ignore the root directory. */
                        break;

-               case (1):
+               case 1:

                        /*
                         * This might contain manX/ or catX/.
                         * Try to infer this from the name.
                         * If we're not in use_all, enforce it.
                         */
                        /*
                         * This might contain manX/ or catX/.
                         * 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;
                        cp = ff->fts_name;
                        if (FTS_DP == ff->fts_info)
                                break;


@@ -620,23 +710,27 @@ treescan(void)
                        } else if (0 == strncmp(cp, "cat", 3)) {
                                dform = FORM_CAT;
                                dsec = cp + 3;
                        } else if (0 == strncmp(cp, "cat", 3)) {
                                dform = FORM_CAT;
                                dsec = cp + 3;

+                       } else {
+                               dform = FORM_NONE;
+                               dsec = NULL;

                        }
 
                        }
 

-                       if (NULL != dsec || use_all) 
+                       if (NULL != dsec || use_all)

                                break;
 
                        if (warnings)
                                say(path, "Unknown directory part");
                        fts_set(f, ff, FTS_SKIP);
                        break;
                                break;
 
                        if (warnings)
                                say(path, "Unknown directory part");
                        fts_set(f, ff, FTS_SKIP);
                        break;

-               case (2):
+               case 2:

                        /*
                         * Possibly our architecture.
                         * If we're descending, keep tabs on it.
                         */
                        /*
                         * 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;
                        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)
                        break;
                default:
                        if (FTS_DP == ff->fts_info || use_all)


@@ -653,58 +747,99 @@ treescan(void)
 }
 
 /*
 }
 
 /*

- * Add a file to the file vector.
+ * Add a file to the mlinks table.

  * Do not verify that it's a "valid" looking manpage (we'll do that
  * later).
  *
  * Try to infer the manual section, architecture, and page name from the
  * path, assuming it looks like
  *
  * Do not verify that it's a "valid" looking manpage (we'll do that
  * later).
  *
  * Try to infer the manual section, architecture, and page name from the
  * path, assuming it looks like
  *

- *   [./]man*[/<arch>]/<name>.<section> 
+ *   [./]man*[/<arch>]/<name>.<section>

  *   or
  *   [./]cat<section>[/<arch>]/<name>.0
  *
  *   or
  *   [./]cat<section>[/<arch>]/<name>.0
  *

- * Stuff this information directly into the mpage vector.

  * See treescan() for the fts(3) version of this.
  */
 static void
 filescan(const char *file)
 {
        char             buf[PATH_MAX];
  * See treescan() for the fts(3) version of this.
  */
 static void
 filescan(const char *file)
 {
        char             buf[PATH_MAX];

-       const char      *sec, *arch, *name, *dsec;
-       char            *p, *start;
-       int              dform;

        struct stat      st;
        struct stat      st;

+       struct mlink    *mlink;
+       char            *p, *start;

 
        assert(use_all);
 
        if (0 == strncmp(file, "./", 2))
                file += 2;
 
 
        assert(use_all);
 
        if (0 == strncmp(file, "./", 2))
                file += 2;
 

-       if (NULL == realpath(file, buf)) {
+       /*
+        * We have to do lstat(2) before realpath(3) loses
+        * the information whether this is a symbolic link.
+        * We need to know that because for symbolic links,
+        * we want to use the orginal file name, while for
+        * regular files, we want to use the real path.
+        */
+       if (-1 == lstat(file, &st)) {

                exitcode = (int)MANDOCLEVEL_BADARG;
                exitcode = (int)MANDOCLEVEL_BADARG;

-               say(file, NULL);
+               say(file, "&lstat");

                return;
                return;

-       } else if (OP_TEST != op && strstr(buf, basedir) != buf) {
+       } else if (0 == ((S_IFREG | S_IFLNK) & st.st_mode)) {

                exitcode = (int)MANDOCLEVEL_BADARG;
                exitcode = (int)MANDOCLEVEL_BADARG;

-               say("", "%s: outside base directory", buf);
+               say(file, "Not a regular file");

                return;
                return;

-       } else if (-1 == stat(buf, &st)) {
+       }
+
+       /*
+        * We have to resolve the file name to the real path
+        * in any case for the base directory check.
+        */
+       if (NULL == realpath(file, buf)) {

                exitcode = (int)MANDOCLEVEL_BADARG;
                exitcode = (int)MANDOCLEVEL_BADARG;

-               say(file, NULL);
+               say(file, "&realpath");

                return;
                return;

-       } else if ( ! (S_IFREG & st.st_mode)) {
+       }
+
+       if (OP_TEST == op)
+               start = buf;
+       else if (strstr(buf, basedir) == buf)
+               start = buf + strlen(basedir);
+       else {

                exitcode = (int)MANDOCLEVEL_BADARG;
                exitcode = (int)MANDOCLEVEL_BADARG;

-               say(file, "Not a regular file");
+               say("", "%s: outside base directory", buf);

                return;
                return;

-       } else if (inocheck(&st)) {
-               if (warnings)
-                       say(file, "Duplicate file");
+       }
+
+       /*
+        * Now we are sure the file is inside our tree.
+        * If it is a symbolic link, ignore the real path
+        * and use the original name.
+        * This implies passing stuff like "cat1/../man1/foo.1"
+        * on the command line won't work.  So don't do that.
+        * Note the stat(2) can still fail if the link target
+        * doesn't exist.
+        */
+       if (S_IFLNK & st.st_mode) {
+               if (-1 == stat(buf, &st)) {
+                       exitcode = (int)MANDOCLEVEL_BADARG;
+                       say(file, "&stat");
+                       return;
+               }
+               if (strlcpy(buf, file, sizeof(buf)) >= sizeof(buf)) {
+                       say(file, "Filename too long");
+                       return;
+               }
+               start = buf;
+               if (OP_TEST != op && strstr(buf, basedir) == buf)
+                       start += strlen(basedir);
+       }
+
+       mlink = mandoc_calloc(1, sizeof(struct mlink));
+       if (strlcpy(mlink->file, start, sizeof(mlink->file)) >=
+           sizeof(mlink->file)) {
+               say(start, "Filename too long");

                return;
        }
                return;
        }

-       start = buf + strlen(basedir);
-       sec = arch = name = dsec = NULL;
-       dform = FORM_NONE;

 
        /*
         * First try to guess our directory structure.
 
        /*
         * First try to guess our directory structure.


@@ -715,19 +850,19 @@ filescan(const char *file)
        if (NULL != (p = strchr(start, '/'))) {
                *p++ = '\0';
                if (0 == strncmp(start, "man", 3)) {
        if (NULL != (p = strchr(start, '/'))) {
                *p++ = '\0';
                if (0 == strncmp(start, "man", 3)) {

-                       dform = FORM_SRC;
-                       dsec = start + 3;
+                       mlink->dform = FORM_SRC;
+                       mlink->dsec = start + 3;

                } else if (0 == strncmp(start, "cat", 3)) {
                } else if (0 == strncmp(start, "cat", 3)) {

-                       dform = FORM_CAT;
-                       dsec = start + 3;
+                       mlink->dform = FORM_CAT;
+                       mlink->dsec = start + 3;

                }
 
                start = p;
                }
 
                start = p;

-               if (NULL != dsec && NULL != (p = strchr(start, '/'))) {
+               if (NULL != mlink->dsec && NULL != (p = strchr(start, '/'))) {

                        *p++ = '\0';
                        *p++ = '\0';

-                       arch = start;
+                       mlink->arch = start;

                        start = p;
                        start = p;

-               } 
+               }

        }
 
        /*
        }
 
        /*


@@ -740,367 +875,461 @@ filescan(const char *file)
 
        if ('.' == *p) {
                *p++ = '\0';
 
        if ('.' == *p) {
                *p++ = '\0';

-               sec = p;
+               mlink->fsec = p;

        }
 
        /*
         * Now try to parse the name.
         * Use the filename portion of the path.
         */
        }
 
        /*
         * Now try to parse the name.
         * Use the filename portion of the path.
         */

-       name = start;
+       mlink->name = start;

        if (NULL != (p = strrchr(start, '/'))) {
        if (NULL != (p = strrchr(start, '/'))) {

-               name = p + 1;
+               mlink->name = p + 1;

                *p = '\0';
                *p = '\0';

-       } 
+       }
+       mlink_add(mlink, &st);
+}

 
 

-       ofadd(dform, file, name, dsec, sec, arch, &st);
+static void
+mlink_add(struct mlink *mlink, const struct stat *st)
+{
+       struct inodev    inodev;
+       struct mpage    *mpage;
+       unsigned int     slot;
+
+       assert(NULL != mlink->file);
+
+       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);
+               mlink->fsec = mandoc_strdup(mlink->dsec);
+               mlink->fform = FORM_CAT;
+       } else if ('1' <= *mlink->fsec && '9' >= *mlink->fsec)
+               mlink->fform = FORM_SRC;
+       else
+               mlink->fform = FORM_NONE;
+
+       slot = ohash_qlookup(&mlinks, mlink->file);
+       assert(NULL == ohash_find(&mlinks, slot));
+       ohash_insert(&mlinks, slot, mlink);
+
+       inodev.st_ino = st->st_ino;
+       inodev.st_dev = st->st_dev;
+       slot = ohash_lookup_memory(&mpages, (char *)&inodev,
+           sizeof(struct inodev), inodev.st_ino);
+       mpage = ohash_find(&mpages, slot);
+       if (NULL == mpage) {
+               mpage = mandoc_calloc(1, sizeof(struct mpage));
+               mpage->inodev.st_ino = inodev.st_ino;
+               mpage->inodev.st_dev = inodev.st_dev;
+               ohash_insert(&mpages, slot, mpage);
+       } else
+               mlink->next = mpage->mlinks;
+       mpage->mlinks = mlink;
+       mlink->mpage = mpage;

 }
 
 }
 

-/*
- * See fileadd(). 
- */
-static int
-filecheck(const char *name)
+static void
+mlink_free(struct mlink *mlink)

 {
 
 {
 

-       return(NULL != ohash_find(&filenames,
-                       ohash_qlookup(&filenames, name)));
+       free(mlink->dsec);
+       free(mlink->arch);
+       free(mlink->name);
+       free(mlink->fsec);
+       free(mlink);

 }
 
 }
 

-/*
- * Use the standard hashing mechanism (K&R) to see if the given filename
- * already exists.
- */

 static void
 static void

-fileadd(struct mpage *mpage)
+mpages_free(void)

 {
 {

+       struct mpage    *mpage;
+       struct mlink    *mlink;

        unsigned int     slot;
 
        unsigned int     slot;
 

-       slot = ohash_qlookup(&filenames, mpage->file);
-       assert(NULL == ohash_find(&filenames, slot));
-       ohash_insert(&filenames, slot, mpage);
+       mpage = ohash_first(&mpages, &slot);
+       while (NULL != mpage) {
+               while (NULL != (mlink = mpage->mlinks)) {
+                       mpage->mlinks = mlink->next;
+                       mlink_free(mlink);
+               }
+               free(mpage->sec);
+               free(mpage->arch);
+               free(mpage->title);
+               free(mpage->desc);
+               free(mpage);
+               mpage = ohash_next(&mpages, &slot);
+       }

 }
 
 /*
 }
 
 /*

- * See inoadd().
+ * For each mlink to the mpage, check whether the path looks like
+ * it is formatted, and if it does, check whether a source manual
+ * exists by the same name, ignoring the suffix.
+ * If both conditions hold, drop the mlink.

  */
  */

-static int
-inocheck(const struct stat *st)
+static void
+mlinks_undupe(struct mpage *mpage)

 {
 {

-       struct id        id;
-       uint32_t         hash;
-
-       memset(&id, 0, sizeof(id));
-       id.ino = hash = st->st_ino;
-       id.dev = st->st_dev;
-
-       return(NULL != ohash_find(&mpages, ohash_lookup_memory(
-                       &mpages, (char *)&id, sizeof(id), hash)));
+       char              buf[PATH_MAX];
+       struct mlink    **prev;
+       struct mlink     *mlink;
+       char             *bufp;
+
+       mpage->form = FORM_CAT;
+       prev = &mpage->mlinks;
+       while (NULL != (mlink = *prev)) {
+               if (FORM_CAT != mlink->dform) {
+                       mpage->form = FORM_NONE;
+                       goto nextlink;
+               }
+               (void)strlcpy(buf, mlink->file, sizeof(buf));
+               bufp = strstr(buf, "cat");
+               assert(NULL != bufp);
+               memcpy(bufp, "man", 3);
+               if (NULL != (bufp = strrchr(buf, '.')))
+                       *++bufp = '\0';
+               (void)strlcat(buf, mlink->dsec, sizeof(buf));
+               if (NULL == ohash_find(&mlinks,
+                   ohash_qlookup(&mlinks, buf)))
+                       goto nextlink;
+               if (warnings)
+                       say(mlink->file, "Man source exists: %s", buf);
+               if (use_all)
+                       goto nextlink;
+               *prev = mlink->next;
+               mlink_free(mlink);
+               continue;
+nextlink:
+               prev = &(*prev)->next;
+       }

 }
 
 }
 

-/*
- * The hashing function used here is quite simple: simply take the inode
- * and use uint32_t of its bits.
- * Then when we do the lookup, use both the inode and device identifier.
- */

 static void
 static void

-inoadd(const struct stat *st, struct mpage *mpage)
+mlink_check(struct mpage *mpage, struct mlink *mlink)

 {
 {

-       uint32_t         hash;
+       struct str      *str;

        unsigned int     slot;
 
        unsigned int     slot;
 

-       mpage->id.ino = hash = st->st_ino;
-       mpage->id.dev = st->st_dev;
-       slot = ohash_lookup_memory
-               (&mpages, (char *)&mpage->id, sizeof(mpage->id), hash);
+       /*
+        * 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).
+        */

 
 

-       assert(NULL == ohash_find(&mpages, slot));
-       ohash_insert(&mpages, slot, mpage);
-}
+       if (FORM_SRC == mpage->form &&
+           strcasecmp(mpage->sec, mlink->dsec))
+               say(mlink->file, "Section \"%s\" manual in %s directory",
+                   mpage->sec, mlink->dsec);

 
 

-static void
-ofadd(int dform, const char *file, const char *name, const char *dsec,
-       const char *sec, const char *arch, const struct stat *st)
-{
-       struct mpage    *mpage;
-       int              sform;
-
-       assert(NULL != file);
-
-       if (NULL == name)
-               name = "";
-       if (NULL == sec)
-               sec = "";
-       if (NULL == dsec)
-               dsec = "";
-       if (NULL == arch)
-               arch = "";
-
-       if ('0' == *sec) {
-               sec = dsec;
-               sform = FORM_CAT;
-       } else if ('1' <= *sec && '9' >= *sec)
-               sform = FORM_SRC;
-       else
-               sform = FORM_NONE;
-
-       mpage = mandoc_calloc(1, sizeof(struct mpage));
-       strlcpy(mpage->file, file, PATH_MAX);
-       mpage->name = mandoc_strdup(name);
-       mpage->sec = mandoc_strdup(sec);
-       mpage->dsec = mandoc_strdup(dsec);
-       mpage->arch = mandoc_strdup(arch);
-       mpage->sform = sform;
-       mpage->dform = dform;
-       mpage->next = mpages_list;
-       mpages_list = mpage;
+       /*
+        * 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))
+               say(mlink->file, "Architecture \"%s\" manual in "
+                   "\"%s\" directory", mpage->arch, mlink->arch);

 
        /*
 
        /*

-        * Add to unique identifier hash.
-        * Then if it's a source manual and we're going to use source in
-        * favour of catpages, add it to that hash.
+        * XXX
+        * parse_cat() doesn't set NAME_TITLE yet.

         */
         */

-       inoadd(st, mpage);
-       fileadd(mpage);
-}

 
 

-static void
-mpages_free(void)
-{
-       struct mpage    *mpage;
+       if (FORM_CAT == mpage->form)
+               return;

 
 

-       while (NULL != (mpage = mpages_list)) {
-               mpages_list = mpage->next;
-               free(mpage->name);
-               free(mpage->sec);
-               free(mpage->dsec);
-               free(mpage->arch);
-               free(mpage);
-       }
+       /*
+        * Check whether this mlink
+        * appears as a name in the NAME section.
+        */
+
+       slot = ohash_qlookup(&names, mlink->name);
+       str = ohash_find(&names, slot);
+       assert(NULL != str);
+       if ( ! (NAME_TITLE & str->mask))
+               say(mlink->file, "Name missing in NAME section");

 }
 
 /*
 }
 
 /*

- * Run through the files in the global vector "mpages_list" and add them to the
- * database specified in "basedir".
+ * Run through the files in the global vector "mpages"
+ * and add them to the database specified in "basedir".

  *
  * This handles the parsing scheme itself, using the cues of directory
  * and filename to determine whether the file is parsable or not.
  */
 static void
  *
  * This handles the parsing scheme itself, using the cues of directory
  * 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;
-       char                     buf[PATH_MAX];
-       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 mdoc             *mdoc;
        struct man              *man;

-       struct title            *title_entry;
-       char                    *bufp, *title_str;
-       const char              *msec, *march, *mtitle, *cp;
-       size_t                   sz;
-       int                      form;
-       int                      match;
-       unsigned int             slot;
+       char                    *sodest;
+       char                    *cp;
+       pid_t                    child_pid;
+       int                      status;
+       unsigned int             pslot;

        enum mandoclevel         lvl;
 
        str_info.alloc = hash_alloc;
        enum mandoclevel         lvl;
 
        str_info.alloc = hash_alloc;

-       str_info.halloc = hash_halloc;
-       str_info.hfree = hash_free;
+       str_info.calloc = hash_calloc;
+       str_info.free = hash_free;

        str_info.key_offset = offsetof(struct str, key);
 
        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");

 
 

-       for (mpage = mpages_list; NULL != mpage; mpage = mpage->next) {
-               /*
-                * If we're a catpage (as defined by our path), then see
-                * if a manpage exists by the same name (ignoring the
-                * suffix).
-                * If it does, then we want to use it instead of our
-                * own.
-                */
-               if ( ! use_all && FORM_CAT == mpage->dform) {
-                       sz = strlcpy(buf, mpage->file, PATH_MAX);
-                       if (sz >= PATH_MAX) {
-                               if (warnings)
-                                       say(mpage->file,
-                                           "Filename too long");
-                               continue;
-                       }
-                       bufp = strstr(buf, "cat");
-                       assert(NULL != bufp);
-                       memcpy(bufp, "man", 3);
-                       if (NULL != (bufp = strrchr(buf, '.')))
-                               *++bufp = '\0';
-                       strlcat(buf, mpage->dsec, PATH_MAX);
-                       if (filecheck(buf)) {
-                               if (warnings)
-                                       say(mpage->file, "Man "
-                                           "source exists: %s", buf);
-                               continue;
-                       }
+       mpage = ohash_first(&mpages, &pslot);
+       while (NULL != mpage) {
+               mlinks_undupe(mpage);
+               if (NULL == mpage->mlinks) {
+                       mpage = ohash_next(&mpages, &pslot);
+                       continue;

                }
 
                }
 

+               name_mask = NAME_MASK;
+               ohash_init(&names, 4, &str_info);

                ohash_init(&strings, 6, &str_info);
                mparse_reset(mp);
                mdoc = NULL;
                man = NULL;
                ohash_init(&strings, 6, &str_info);
                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)
                 * source code, unless it is already known to be
                 * formatted.  Fall back to formatted mode.
                 */
 
                /*
                 * Try interpreting the file as mdoc(7) or man(7)
                 * source code, unless it is already known to be
                 * formatted.  Fall back to formatted mode.
                 */

-               if (FORM_CAT != mpage->dform || FORM_CAT != mpage->sform) {
-                       lvl = mparse_readfd(mp, -1, mpage->file);
+               if (FORM_CAT != mpage->mlinks->dform ||
+                   FORM_CAT != mpage->mlinks->fform) {
+                       lvl = mparse_readfd(mp, fd[0], mpage->mlinks->file);

                        if (lvl < MANDOCLEVEL_FATAL)
                        if (lvl < MANDOCLEVEL_FATAL)

-                               mparse_result(mp, &mdoc, &man);
+                               mparse_result(mp, &mdoc, &man, &sodest);

                }
 
                }
 

-               if (NULL != mdoc) {
-                       form = 1;
-                       msec = mdoc_meta(mdoc)->msec;
-                       march = mdoc_meta(mdoc)->arch;
-                       mtitle = mdoc_meta(mdoc)->title;
-               } else if (NULL != man) {
-                       form = 1;
-                       msec = man_meta(man)->msec;
-                       march = mpage->arch;
-                       mtitle = man_meta(man)->title;
-               } else {
-                       form = 0;
-                       msec = mpage->dsec;
-                       march = mpage->arch;
-                       mtitle = mpage->name;
-               }
+               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->pageid)
+                                               dbadd_mlink(mlink);
+
+                                       if (NULL == mlink->next)
+                                               break;
+                                       mlink = mlink->next;
+                               }

 
 

-               if (NULL == msec)
-                       msec = "";
-               if (NULL == march)
-                       march = "";
-               if (NULL == mtitle)
-                       mtitle = "";
+                               /* Move all links to the target. */

 
 

-               /*
-                * 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 &&
-                               strcasecmp(msec, mpage->dsec)) {
-                       match = 0;
-                       say(mpage->file, "Section \"%s\" "
-                               "manual in %s directory",
-                               msec, mpage->dsec);
+                               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);
+                       mpage->arch = mdoc_meta(mdoc)->arch;
+                       mpage->arch = mandoc_strdup(
+                           NULL == mpage->arch ? "" : mpage->arch);
+                       mpage->title =
+                           mandoc_strdup(mdoc_meta(mdoc)->title);
+               } else if (NULL != man) {
+                       mpage->form = FORM_SRC;
+                       mpage->sec =
+                           mandoc_strdup(man_meta(man)->msec);
+                       mpage->arch =
+                           mandoc_strdup(mpage->mlinks->arch);
+                       mpage->title =
+                           mandoc_strdup(man_meta(man)->title);
+               } else {
+                       mpage->form = FORM_CAT;
+                       mpage->sec =
+                           mandoc_strdup(mpage->mlinks->dsec);
+                       mpage->arch =
+                           mandoc_strdup(mpage->mlinks->arch);
+                       mpage->title =
+                           mandoc_strdup(mpage->mlinks->name);

                }
                }

-
-               /*
-                * 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(march, mpage->arch)) {
-                       match = 0;
-                       say(mpage->file, "Architecture \"%s\" "
-                               "manual in \"%s\" directory",
-                               march, mpage->arch);
+               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, NAME_FILE);

                }
                }

-               if (warnings && !use_all && strcasecmp(mtitle, mpage->name))
-                       match = 0;
-
-               putkey(mpage, mpage->name, TYPE_Nm);

 
 

+               assert(NULL == mpage->desc);

                if (NULL != mdoc) {
                        if (NULL != (cp = mdoc_meta(mdoc)->name))
                if (NULL != mdoc) {
                        if (NULL != (cp = mdoc_meta(mdoc)->name))

-                               putkey(mpage, cp, TYPE_Nm);
-                       assert(NULL == mpage->desc);
+                               putkey(mpage, cp, NAME_HEAD);

                        parse_mdoc(mpage, mdoc_node(mdoc));
                        parse_mdoc(mpage, mdoc_node(mdoc));

-                       putkey(mpage, NULL != mpage->desc ?
-                               mpage->desc : mpage->name, TYPE_Nd);

                } else if (NULL != man)
                        parse_man(mpage, man_node(man));
                else
                } 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)", mtitle,
-                           msec, '\0' == *march ? "" : "/", march)) {
-                               perror(NULL);
-                               exit((int)MANDOCLEVEL_SYSERR);
-                       }
-                       slot = ohash_qlookup(&title_table, title_str);
-                       title_entry = ohash_find(&title_table, slot);
-                       if (NULL == title_entry) {
-                               title_entry = mandoc_malloc(
-                                               sizeof(struct title));
-                               title_entry->title = title_str;
-                               title_entry->file = mandoc_strdup(
-                                   match ? "" : mpage->file);
-                               ohash_insert(&title_table, slot,
-                                               title_entry);
-                       } else {
-                               if (match)
-                                       *title_entry->file = '\0';
-                               free(title_str);
+                       parse_cat(mpage, fd[0]);
+               if (NULL == mpage->desc)
+                       mpage->desc = mandoc_strdup(mpage->mlinks->name);
+
+               if (warnings && !use_all)
+                       for (mlink = mpage->mlinks; mlink;
+                            mlink = mlink->next)
+                               mlink_check(mpage, mlink);
+
+               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(mc, form, mpage);

                ohash_delete(&strings);
                ohash_delete(&strings);

+               ohash_delete(&names);
+               mpage = ohash_next(&mpages, &pslot);

        }
 
        }
 

-       if (check_reachable) {
-               title_entry = ohash_first(&title_table, &slot);
-               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, &slot);
-               }
-               ohash_delete(&title_table);
+       if (0 == nodb)
+               SQL_EXEC("END TRANSACTION");
+}
+
+static void
+names_check(void)
+{
+       sqlite3_stmt    *stmt;
+       const char      *name, *sec, *arch, *key;
+       int              irc;
+
+       sqlite3_prepare_v2(db,
+         "SELECT name, sec, arch, key FROM ("
+           "SELECT name AS key, pageid FROM names "
+           "WHERE bits & ? AND NOT EXISTS ("
+             "SELECT pageid FROM mlinks "
+             "WHERE mlinks.pageid == names.pageid "
+             "AND mlinks.name == names.name"
+           ")"
+         ") JOIN ("
+           "SELECT sec, arch, name, pageid FROM mlinks "
+           "GROUP BY pageid"
+         ") USING (pageid);",
+         -1, &stmt, NULL);
+
+       if (SQLITE_OK != sqlite3_bind_int64(stmt, 1, NAME_TITLE))
+               say("", "%s", sqlite3_errmsg(db));
+
+       while (SQLITE_ROW == (irc = sqlite3_step(stmt))) {
+               name = sqlite3_column_text(stmt, 0);
+               sec  = sqlite3_column_text(stmt, 1);
+               arch = sqlite3_column_text(stmt, 2);
+               key  = sqlite3_column_text(stmt, 3);
+               say("", "%s(%s%s%s) lacks mlink \"%s\"", name, sec,
+                   '\0' == *arch ? "" : "/",
+                   '\0' == *arch ? "" : arch, key);

        }
        }

+       sqlite3_finalize(stmt);

 }
 
 static void
 }
 
 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;
 
 {
        FILE            *stream;
        char            *line, *p, *title;
        size_t           len, plen, titlesz;
 

-       if (NULL == (stream = fopen(mpage->file, "r"))) {
+       stream = (-1 == fd) ?
+           fopen(mpage->mlinks->file, "r") :
+           fdopen(fd, "r");
+       if (NULL == stream) {

                if (warnings)
                if (warnings)

-                       say(mpage->file, NULL);
+                       say(mpage->mlinks->file, "&fopen");

                return;
        }
 
                return;
        }
 


@@ -1118,7 +1347,7 @@ parse_cat(struct mpage *mpage)
        while (NULL != (line = fgetln(stream, &len)))
                if ('\n' != *line && ' ' != *line)
                        break;
        while (NULL != (line = fgetln(stream, &len)))
                if ('\n' != *line && ' ' != *line)
                        break;

-       
+

        /*
         * Read up until the next section into a buffer.
         * Strip the leading and trailing newline from each read line,
        /*
         * Read up until the next section into a buffer.
         * Strip the leading and trailing newline from each read line,


@@ -1153,10 +1382,8 @@ parse_cat(struct mpage *mpage)
 
        if (NULL == title || '\0' == *title) {
                if (warnings)
 
        if (NULL == title || '\0' == *title) {
                if (warnings)

-                       say(mpage->file, "Cannot find NAME section");
-               assert(NULL == mpage->desc);
-               mpage->desc = mandoc_strdup(mpage->name);
-               putkey(mpage, mpage->name, TYPE_Nd);
+                       say(mpage->mlinks->file,
+                           "Cannot find NAME section");

                fclose(stream);
                free(title);
                return;
                fclose(stream);
                free(title);
                return;


@@ -1176,7 +1403,8 @@ parse_cat(struct mpage *mpage)
                        /* Skip to next word. */ ;
        } else {
                if (warnings)
                        /* Skip to next word. */ ;
        } else {
                if (warnings)

-                       say(mpage->file, "No dash in title line");
+                       say(mpage->mlinks->file,
+                           "No dash in title line");

                p = title;
        }
 
                p = title;
        }
 


@@ -1189,14 +1417,12 @@ parse_cat(struct mpage *mpage)
                if (0 == len) {
                        memmove(line, line + 1, plen--);
                        continue;
                if (0 == len) {
                        memmove(line, line + 1, plen--);
                        continue;

-               } 
+               }

                memmove(line - 1, line + 1, plen - len);
                plen -= 2;
        }
 
                memmove(line - 1, line + 1, plen - len);
                plen -= 2;
        }
 

-       assert(NULL == mpage->desc);

        mpage->desc = mandoc_strdup(p);
        mpage->desc = mandoc_strdup(p);

-       putkey(mpage, mpage->desc, TYPE_Nd);

        fclose(stream);
        free(title);
 }
        fclose(stream);
        free(title);
 }


@@ -1205,10 +1431,15 @@ parse_cat(struct mpage *mpage)
  * Put a type/word pair into the word database for this particular file.
  */
 static void
  * 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);
 
        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);
 }
 
        putkeys(mpage, value, strlen(value), type);
 }
 


@@ -1232,9 +1463,9 @@ static void
 parse_man(struct mpage *mpage, const struct man_node *n)
 {
        const struct man_node *head, *body;
 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;
        char             byte;

-       size_t           sz, titlesz;
+       size_t           sz;

 
        if (NULL == n)
                return;
 
        if (NULL == n)
                return;


@@ -1250,15 +1481,11 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                body = n;
                assert(body->parent);
                if (NULL != (head = body->parent->head) &&
                body = n;
                assert(body->parent);
                if (NULL != (head = body->parent->head) &&

-                               1 == head->nchild &&
-                               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;
+                   1 == head->nchild &&
+                   NULL != (head = (head->child)) &&
+                   MAN_TEXT == head->type &&
+                   0 == strcmp(head->string, "NAME") &&
+                   NULL != body->child) {

 
                        /*
                         * Suck the entire NAME section into memory.
 
                        /*
                         * Suck the entire NAME section into memory.


@@ -1267,48 +1494,12 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                         * NAME sections over many lines.
                         */
 
                         * 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;
 
                        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
                         * comma-specified prior to a whitespace, then a
                         * Go through a special heuristic dance here.
                         * Conventionally, one or more manual names are
                         * comma-specified prior to a whitespace, then a


@@ -1316,6 +1507,7 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                         * the name parts here.
                         */
 
                         * the name parts here.
                         */
 

+                       start = title;

                        for ( ;; ) {
                                sz = strcspn(start, " ,");
                                if ('\0' == start[sz])
                        for ( ;; ) {
                                sz = strcspn(start, " ,");
                                if ('\0' == start[sz])


@@ -1324,7 +1516,16 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                                byte = start[sz];
                                start[sz] = '\0';
 
                                byte = start[sz];
                                start[sz] = '\0';
 

-                               putkey(mpage, start, TYPE_Nm);
+                               /*
+                                * 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, NAME_TITLE);

 
                                if (' ' == byte) {
                                        start += sz + 1;
 
                                if (' ' == byte) {
                                        start += sz + 1;


@@ -1337,8 +1538,8 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                                        start++;
                        }
 
                                        start++;
                        }
 

-                       if (sv == start) {
-                               putkey(mpage, start, TYPE_Nm);
+                       if (start == title) {
+                               putkey(mpage, start, NAME_TITLE);

                                free(title);
                                return;
                        }
                                free(title);
                                return;
                        }


@@ -1360,9 +1561,7 @@ parse_man(struct mpage *mpage, const struct man_node *n)
                        while (' ' == *start)
                                start++;
 
                        while (' ' == *start)
                                start++;
 

-                       assert(NULL == mpage->desc);

                        mpage->desc = mandoc_strdup(start);
                        mpage->desc = mandoc_strdup(start);

-                       putkey(mpage, mpage->desc, TYPE_Nd);

                        free(title);
                        return;
                }
                        free(title);
                        return;
                }


@@ -1382,15 +1581,15 @@ parse_mdoc(struct mpage *mpage, const struct mdoc_node *n)
        assert(NULL != n);
        for (n = n->child; NULL != n; n = n->next) {
                switch (n->type) {
        assert(NULL != n);
        for (n = n->child; NULL != n; n = n->next) {
                switch (n->type) {

-               case (MDOC_ELEM):
+               case MDOC_ELEM:

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case (MDOC_BLOCK):
+               case MDOC_BLOCK:

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case (MDOC_HEAD):
+               case MDOC_HEAD:

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case (MDOC_BODY):
+               case MDOC_BODY:

                        /* FALLTHROUGH */
                        /* FALLTHROUGH */

-               case (MDOC_TAIL):
+               case MDOC_TAIL:

                        if (NULL != mdocs[n->tok].fp)
                               if (0 == (*mdocs[n->tok].fp)(mpage, n))
                                       break;
                        if (NULL != mdocs[n->tok].fp)
                               if (0 == (*mdocs[n->tok].fp)(mpage, n))
                                       break;


@@ -1414,8 +1613,8 @@ parse_mdoc_Fd(struct mpage *mpage, const struct mdoc_node *n)
        size_t           sz;
 
        if (SEC_SYNOPSIS != n->sec ||
        size_t           sz;
 
        if (SEC_SYNOPSIS != n->sec ||

-                       NULL == (n = n->child) || 
-                       MDOC_TEXT != n->type)
+           NULL == (n = n->child) ||
+           MDOC_TEXT != n->type)

                return(0);
 
        /*
                return(0);
 
        /*


@@ -1447,33 +1646,22 @@ parse_mdoc_Fd(struct mpage *mpage, const struct mdoc_node *n)
 
        if (end > start)
                putkeys(mpage, start, end - start + 1, TYPE_In);
 
        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)
 {
 }
 
 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);
 
 
        if (NULL == (n = n->child) || MDOC_TEXT != n->type)
                return(0);
 

-       /* 
+       /*

         * Parse: .Fn "struct type *name" "char *arg".
         * Parse: .Fn "struct type *name" "char *arg".

-        * First strip away pointer symbol. 
+        * First strip away pointer symbol.

         * Then store the function name, then type.
         * Then store the function name, then type.

-        * Finally, store the arguments. 
+        * Finally, store the arguments.

         */
 
        if (NULL == (cp = strrchr(n->string, ' ')))
         */
 
        if (NULL == (cp = strrchr(n->string, ' ')))


@@ -1494,17 +1682,6 @@ parse_mdoc_Fn(struct mpage *mpage, const struct mdoc_node *n)
        return(0);
 }
 
        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)
 {
 static int
 parse_mdoc_Xr(struct mpage *mpage, const struct mdoc_node *n)
 {


@@ -1518,10 +1695,7 @@ parse_mdoc_Xr(struct mpage *mpage, const struct mdoc_node *n)
                return(0);
        }
 
                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);
        putkey(mpage, cp, TYPE_Xr);
        free(cp);
        return(0);


@@ -1530,32 +1704,10 @@ parse_mdoc_Xr(struct mpage *mpage, const struct mdoc_node *n)
 static int
 parse_mdoc_Nd(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
 }
 
 static int


@@ -1563,11 +1715,10 @@ parse_mdoc_Nm(struct mpage *mpage, const struct mdoc_node *n)
 {
 
        if (SEC_NAME == n->sec)
 {
 
        if (SEC_NAME == n->sec)

-               return(1);
-       else if (SEC_SYNOPSIS != n->sec || MDOC_HEAD != n->type)
-               return(0);
-
-       return(1);
+               putmdockey(mpage, n->child, NAME_TITLE);
+       else if (SEC_SYNOPSIS == n->sec && MDOC_HEAD == n->type)
+               putmdockey(mpage, n->child, NAME_SYN);
+       return(0);

 }
 
 static int
 }
 
 static int


@@ -1600,24 +1751,43 @@ static void
 putkeys(const struct mpage *mpage,
        const char *cp, size_t sz, uint64_t v)
 {
 putkeys(const struct mpage *mpage,
        const char *cp, size_t sz, uint64_t v)
 {

+       struct ohash    *htab;

        struct str      *s;
        struct str      *s;

-       unsigned int     slot;

        const char      *end;
        const char      *end;

+       unsigned int     slot;
+       int              i;

 
        if (0 == sz)
                return;
 
 
        if (0 == sz)
                return;
 

+       if (TYPE_Nm & v) {
+               htab = &names;
+               v &= name_mask;
+               name_mask &= ~NAME_FIRST;
+               if (debug > 1)
+                       say(mpage->mlinks->file,
+                           "Adding name %*s", sz, cp);
+       } else {
+               htab = &strings;
+               if (debug > 1)
+                   for (i = 0; i < mansearch_keymax; i++)
+                       if (1 << i & v)
+                           say(mpage->mlinks->file,
+                               "Adding key %s=%*s",
+                               mansearch_keynames[i], sz, cp);
+       }
+

        end = cp + sz;
        end = cp + sz;

-       slot = ohash_qlookupi(&strings, cp, &end);
-       s = ohash_find(&strings, slot);
+       slot = ohash_qlookupi(htab, cp, &end);
+       s = ohash_find(htab, slot);

 
        if (NULL != s && mpage == s->mpage) {
                s->mask |= v;
                return;
        } else if (NULL == s) {
 
        if (NULL != s && mpage == s->mpage) {
                s->mask |= v;
                return;
        } else if (NULL == s) {

-               s = mandoc_calloc(sizeof(struct str) + sz + 1, 1);
+               s = mandoc_calloc(1, sizeof(struct str) + sz + 1);

                memcpy(s->key, cp, sz);
                memcpy(s->key, cp, sz);

-               ohash_insert(&strings, slot, s);
+               ohash_insert(htab, slot, s);

        }
        s->mpage = mpage;
        s->mask = v;
        }
        s->mpage = mpage;
        s->mask = v;


@@ -1676,26 +1846,27 @@ 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
  */
 static void

-utf8key(struct mchars *mc, struct str *key)
+render_key(struct mchars *mc, struct str *key)

 {
        size_t           sz, bsz, pos;
 {
        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;
 
        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[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);
 
        val = key->key;
        bsz = strlen(val);


@@ -1705,9 +1876,9 @@ utf8key(struct mchars *mc, struct str *key)
         * pointer as ourselvse and get out of here.
         */
        if (strcspn(val, res) == bsz) {
         * pointer as ourselvse and get out of here.
         */
        if (strcspn(val, res) == bsz) {

-               key->utf8 = key->key;
+               key->rendered = key->key;

                return;
                return;

-       } 
+       }

 
        /* Pre-allocate by the length of the input */
 
 
        /* Pre-allocate by the length of the input */
 


@@ -1726,138 +1897,233 @@ utf8key(struct mchars *mc, struct str *key)
                        val += sz;
                }
 
                        val += sz;
                }
 

-               if (ASCII_HYPH == *val) {
+               switch (*val) {
+               case ASCII_HYPH:

                        buf[pos++] = '-';
                        val++;
                        continue;
                        buf[pos++] = '-';
                        val++;
                        continue;

-               } else if ('\t' == *val || ASCII_NBRSP == *val) {
+               case '\t':
+                       /* FALLTHROUGH */
+               case ASCII_NBRSP:

                        buf[pos++] = ' ';
                        val++;
                        buf[pos++] = ' ';
                        val++;

+                       /* FALLTHROUGH */
+               case ASCII_BREAK:

                        continue;
                        continue;

-               } else if ('\\' != *val)
+               default:
+                       break;
+               }
+               if ('\\' != *val)

                        break;
 
                /* Read past the slash. */
 
                val++;
                        break;
 
                /* Read past the slash. */
 
                val++;

-               u = 0;

 
                /*
                 * Parse the escape sequence and see if it's a
                 * predefined character or special character.
                 */
 
                /*
                 * Parse the escape sequence and see if it's a
                 * predefined character or special character.
                 */

-               esc = mandoc_escape
-                       ((const char **)&val, &seq, &len);
+
+               esc = mandoc_escape((const char **)&val,
+                   &seq, &len);

                if (ESCAPE_ERROR == esc)
                        break;
                if (ESCAPE_ERROR == esc)
                        break;

-

                if (ESCAPE_SPECIAL != esc)
                        continue;
                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. */
 
 
                /* Copy the rendered glyph into the stream. */
 

-               sz = strlen(cpp);

                bsz += sz;
                bsz += sz;

-

                buf = mandoc_realloc(buf, bsz);
                buf = mandoc_realloc(buf, bsz);

-

                memcpy(&buf[pos], cpp, sz);
                pos += sz;
        }
 
        buf[pos] = '\0';
                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->pageid);
+       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.
 }
 
 /*
  * 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
  */
 static void

-dbindex(struct mchars *mc, int form, const struct mpage *mpage)
+dbadd(struct mpage *mpage, struct mchars *mc)

 {
 {

+       struct mlink    *mlink;

        struct str      *key;
        struct str      *key;

-       const char      *desc;
-       int64_t          recno;

        size_t           i;
        unsigned int     slot;
 
        size_t           i;
        unsigned int     slot;
 

-       if (verb)
-               say(mpage->file, "Adding to index");
+       mlink = mpage->mlinks;

 
 

-       if (nodb)
+       if (nodb) {
+               for (key = ohash_first(&names, &slot); NULL != key;
+                    key = ohash_next(&names, &slot)) {
+                       if (key->rendered != key->key)
+                               free(key->rendered);
+                       free(key);
+               }
+               for (key = ohash_first(&strings, &slot); NULL != key;
+                    key = ohash_next(&strings, &slot)) {
+                       if (key->rendered != key->key)
+                               free(key->rendered);
+                       free(key);
+               }
+               if (0 == debug)
+                       return;
+               while (NULL != mlink) {
+                       fputs(mlink->name, stdout);
+                       if (NULL == mlink->next ||
+                           strcmp(mlink->dsec, mlink->next->dsec) ||
+                           strcmp(mlink->fsec, mlink->next->fsec) ||
+                           strcmp(mlink->arch, mlink->next->arch)) {
+                               putchar('(');
+                               if ('\0' == *mlink->dsec)
+                                       fputs(mlink->fsec, stdout);
+                               else
+                                       fputs(mlink->dsec, stdout);
+                               if ('\0' != *mlink->arch)
+                                       printf("/%s", mlink->arch);
+                               putchar(')');
+                       }
+                       mlink = mlink->next;
+                       if (NULL != mlink)
+                               fputs(", ", stdout);
+               }
+               printf(" - %s\n", mpage->desc);

                return;
                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");
+       if (debug)
+               say(mlink->file, "Adding to database");
+
+       i = strlen(mpage->desc) + 1;
+       key = mandoc_calloc(1, sizeof(struct str) + i);
+       memcpy(key->key, mpage->desc, i);
+       render_key(mc, key);

 
        i = 1;
 
        i = 1;

-       SQL_BIND_TEXT(stmts[STMT_INSERT_DOC], i, mpage->file);
-       SQL_BIND_TEXT(stmts[STMT_INSERT_DOC], i, mpage->sec);
-       SQL_BIND_TEXT(stmts[STMT_INSERT_DOC], i, mpage->arch);
-       SQL_BIND_TEXT(stmts[STMT_INSERT_DOC], i, desc);
-       SQL_BIND_INT(stmts[STMT_INSERT_DOC], i, form);
-       SQL_STEP(stmts[STMT_INSERT_DOC]);
-       recno = sqlite3_last_insert_rowid(db);
-       sqlite3_reset(stmts[STMT_INSERT_DOC]);
+       SQL_BIND_TEXT(stmts[STMT_INSERT_PAGE], i, key->rendered);
+       SQL_BIND_INT(stmts[STMT_INSERT_PAGE], i, FORM_SRC == mpage->form);
+       SQL_STEP(stmts[STMT_INSERT_PAGE]);
+       mpage->pageid = sqlite3_last_insert_rowid(db);
+       sqlite3_reset(stmts[STMT_INSERT_PAGE]);
+
+       if (key->rendered != key->key)
+               free(key->rendered);
+       free(key);
+
+       while (NULL != mlink) {
+               dbadd_mlink(mlink);
+               mlink = mlink->next;
+       }
+       mlink = mpage->mlinks;

 
 

+       for (key = ohash_first(&names, &slot); NULL != key;
+            key = ohash_next(&names, &slot)) {
+               assert(key->mpage == mpage);
+               if (NULL == key->rendered)
+                       render_key(mc, key);
+               i = 1;
+               SQL_BIND_INT64(stmts[STMT_INSERT_NAME], i, key->mask);
+               SQL_BIND_TEXT(stmts[STMT_INSERT_NAME], i, key->rendered);
+               SQL_BIND_INT64(stmts[STMT_INSERT_NAME], i, mpage->pageid);
+               SQL_STEP(stmts[STMT_INSERT_NAME]);
+               sqlite3_reset(stmts[STMT_INSERT_NAME]);
+               if (key->rendered != key->key)
+                       free(key->rendered);
+               free(key);
+       }

        for (key = ohash_first(&strings, &slot); NULL != key;
             key = ohash_next(&strings, &slot)) {
                assert(key->mpage == mpage);
        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);
                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->pageid);

                SQL_STEP(stmts[STMT_INSERT_KEY]);
                sqlite3_reset(stmts[STMT_INSERT_KEY]);
                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);
        }
                free(key);
        }

-
-       SQL_EXEC("END TRANSACTION");

 }
 
 static void
 dbprune(void)
 {
        struct mpage    *mpage;
 }
 
 static void
 dbprune(void)
 {
        struct mpage    *mpage;

+       struct mlink    *mlink;

        size_t           i;
        size_t           i;

+       unsigned int     slot;

 
 

-       if (nodb)
-               return;
+       if (0 == nodb)
+               SQL_EXEC("BEGIN TRANSACTION");

 
 

-       for (mpage = mpages_list; NULL != mpage; mpage = mpage->next) {
-               i = 1;
-               SQL_BIND_TEXT(stmts[STMT_DELETE], i, mpage->file);
-               SQL_STEP(stmts[STMT_DELETE]);
-               sqlite3_reset(stmts[STMT_DELETE]);
-               if (verb)
-                       say(mpage->file, "Deleted from index");
+       for (mpage = ohash_first(&mpages, &slot); NULL != mpage;
+            mpage = ohash_next(&mpages, &slot)) {
+               mlink = mpage->mlinks;
+               if (debug)
+                       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");

 }
 
 /*
 }
 
 /*


@@ -1868,6 +2134,8 @@ static void
 dbclose(int real)
 {
        size_t           i;
 dbclose(int real)
 {
        size_t           i;

+       int              status;
+       pid_t            child;

 
        if (nodb)
                return;
 
        if (nodb)
                return;


@@ -1883,9 +2151,59 @@ dbclose(int real)
        if (real)
                return;
 
        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("", "&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;
                exitcode = (int)MANDOCLEVEL_SYSERR;

-               say(MANDOC_DB, NULL);
+               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);

        }
 }
 
        }
 }
 


@@ -1900,76 +2218,117 @@ dbclose(int real)
 static int
 dbopen(int real)
 {
 static int
 dbopen(int real)
 {

-       const char      *file, *sql;
+       const char      *sql;

        int              rc, ofl;
 
        int              rc, ofl;
 

-       if (nodb) 
+       if (nodb)

                return(1);
 
                return(1);
 

+       *tempfilename = '\0';

        ofl = SQLITE_OPEN_READWRITE;
        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;
                        exitcode = (int)MANDOCLEVEL_SYSERR;

-                       say(file, NULL);
+                       if (SQLITE_CANTOPEN != rc)
+                               say(MANDOC_DB, "%s", sqlite3_errstr(rc));

                        return(0);
                }
                        return(0);
                }

-               ofl |= SQLITE_OPEN_EXCLUSIVE;
-       } else
-               file = MANDOC_DB;
-
-       rc = sqlite3_open_v2(file, &db, ofl, NULL);
-       if (SQLITE_OK == rc) 

                goto prepare_statements;
                goto prepare_statements;

-       if (SQLITE_CANTOPEN != rc) {
+       }
+
+       ofl |= SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE;
+
+       remove(MANDOC_DB "~");
+       rc = sqlite3_open_v2(MANDOC_DB "~", &db, ofl, NULL);
+       if (SQLITE_OK == rc)
+               goto create_tables;
+       if (MPARSE_QUICK & mparse_options) {

                exitcode = (int)MANDOCLEVEL_SYSERR;
                exitcode = (int)MANDOCLEVEL_SYSERR;

-               say(file, NULL);
+               say(MANDOC_DB "~", "%s", sqlite3_errstr(rc));

                return(0);
        }
 
                return(0);
        }
 

-       sqlite3_close(db);
-       db = NULL;
-
-       if (SQLITE_OK != (rc = sqlite3_open(file, &db))) {
+       (void)strlcpy(tempfilename, "/tmp/mandocdb.XXXXXX",
+           sizeof(tempfilename));
+       if (NULL == mkdtemp(tempfilename)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", "&%s", tempfilename);
+               return(0);
+       }
+       (void)strlcat(tempfilename, "/" MANDOC_DB,
+           sizeof(tempfilename));
+       rc = sqlite3_open_v2(tempfilename, &db, ofl, NULL);
+       if (SQLITE_OK != rc) {

                exitcode = (int)MANDOCLEVEL_SYSERR;
                exitcode = (int)MANDOCLEVEL_SYSERR;

-               say(file, NULL);
+               say("", "%s: %s", tempfilename, sqlite3_errstr(rc));

                return(0);
        }
 
                return(0);
        }
 

-       sql = "CREATE TABLE \"docs\" (\n"
-             " \"file\" TEXT NOT NULL,\n"
-             " \"sec\" TEXT NOT NULL,\n"
-             " \"arch\" TEXT NOT NULL,\n"
+create_tables:
+       sql = "CREATE TABLE \"mpages\" (\n"

              " \"desc\" TEXT NOT NULL,\n"
              " \"form\" INTEGER NOT NULL,\n"
              " \"desc\" TEXT NOT NULL,\n"
              " \"form\" INTEGER NOT NULL,\n"

-             " \"id\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n"
+             " \"pageid\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n"
+             ");\n"
+             "\n"
+             "CREATE TABLE \"mlinks\" (\n"
+             " \"sec\" TEXT NOT NULL,\n"
+             " \"arch\" TEXT NOT NULL,\n"
+             " \"name\" TEXT NOT NULL,\n"
+             " \"pageid\" INTEGER NOT NULL REFERENCES mpages(pageid) "
+               "ON DELETE CASCADE\n"
+             ");\n"
+             "CREATE INDEX mlinks_pageid_idx ON mlinks (pageid);\n"
+             "\n"
+             "CREATE TABLE \"names\" (\n"
+             " \"bits\" INTEGER NOT NULL,\n"
+             " \"name\" TEXT NOT NULL,\n"
+             " \"pageid\" INTEGER NOT NULL REFERENCES mpages(pageid) "
+               "ON DELETE CASCADE\n"

              ");\n"
              "\n"
              "CREATE TABLE \"keys\" (\n"
              " \"bits\" INTEGER NOT NULL,\n"
              " \"key\" TEXT NOT NULL,\n"
              ");\n"
              "\n"
              "CREATE TABLE \"keys\" (\n"
              " \"bits\" INTEGER NOT NULL,\n"
              " \"key\" TEXT NOT NULL,\n"

-             " \"docid\" INTEGER NOT NULL REFERENCES docs(id) "
-               "ON DELETE CASCADE,\n"
-             " \"id\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n"
+             " \"pageid\" INTEGER NOT NULL REFERENCES mpages(pageid) "
+               "ON DELETE CASCADE\n"

              ");\n"
              ");\n"

-             "\n"
-             "CREATE INDEX \"key_index\" ON keys (key);\n";
+             "CREATE INDEX keys_pageid_idx ON keys (pageid);\n";

 
        if (SQLITE_OK != sqlite3_exec(db, sql, NULL, NULL, NULL)) {
                exitcode = (int)MANDOCLEVEL_SYSERR;
 
        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));
+               sqlite3_close(db);

                return(0);
        }
 
 prepare_statements:
                return(0);
        }
 
 prepare_statements:

-       SQL_EXEC("PRAGMA foreign_keys = ON");
-       sql = "DELETE FROM docs where file=?";
-       sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_DELETE], NULL);
-       sql = "INSERT INTO docs "
-               "(file,sec,arch,desc,form) VALUES (?,?,?,?,?)";
-       sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_DOC], NULL);
+       if (SQLITE_OK != sqlite3_exec(db,
+           "PRAGMA foreign_keys = ON", NULL, NULL, NULL)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(MANDOC_DB, "PRAGMA foreign_keys: %s",
+                   sqlite3_errmsg(db));
+               sqlite3_close(db);
+               return(0);
+       }
+
+       sql = "DELETE FROM mpages WHERE pageid 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 "
+               "(desc,form) VALUES (?,?)";
+       sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_PAGE], NULL);
+       sql = "INSERT INTO mlinks "
+               "(sec,arch,name,pageid) VALUES (?,?,?,?)";
+       sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_LINK], NULL);
+       sql = "INSERT INTO names "
+               "(bits,name,pageid) VALUES (?,?,?)";
+       sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_NAME], NULL);

        sql = "INSERT INTO keys "
        sql = "INSERT INTO keys "

-               "(bits,key,docid) VALUES (?,?,?)";
+               "(bits,key,pageid) VALUES (?,?,?)";

        sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_KEY], NULL);
 
 #ifndef __APPLE__
        sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_KEY], NULL);
 
 #ifndef __APPLE__


@@ -1978,18 +2337,24 @@ prepare_statements:
         * synchronous mode for much better performance.
         */
 
         * synchronous mode for much better performance.
         */
 

-       if (real)
-               SQL_EXEC("PRAGMA synchronous = OFF");
+       if (real && SQLITE_OK != sqlite3_exec(db,
+           "PRAGMA synchronous = OFF", NULL, NULL, NULL)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(MANDOC_DB, "PRAGMA synchronous: %s",
+               sqlite3_errmsg(db));
+               sqlite3_close(db);
+               return(0);
+       }

 #endif
 
        return(1);
 }
 
 static void *
 #endif
 
        return(1);
 }
 
 static void *

-hash_halloc(size_t sz, void *arg)
+hash_calloc(size_t n, size_t sz, void *arg)

 {
 
 {
 

-       return(mandoc_calloc(sz, 1));
+       return(mandoc_calloc(n, sz));

 }
 
 static void *
 }
 
 static void *


@@ -2000,7 +2365,7 @@ hash_alloc(size_t sz, void *arg)
 }
 
 static void
 }
 
 static void

-hash_free(void *p, size_t sz, void *arg)
+hash_free(void *p, void *arg)

 {
 
        free(p);
 {
 
        free(p);


@@ -2010,53 +2375,75 @@ static int
 set_basedir(const char *targetdir)
 {
        static char      startdir[PATH_MAX];
 set_basedir(const char *targetdir)
 {
        static char      startdir[PATH_MAX];

-       static int       fd;
+       static int       getcwd_status;  /* 1 = ok, 2 = failure */
+       static int       chdir_status;  /* 1 = changed directory */
+       char            *cp;

 
        /*
 
        /*

-        * Remember where we started by keeping a fd open to the origin
-        * path component: throughout this utility, we chdir() a lot to
-        * handle relative paths, and by doing this, we can return to
-        * the starting point.
+        * Remember the original working directory, if possible.
+        * This will be needed if the second or a later directory
+        * on the command line is given as a relative path.
+        * Do not error out if the current directory is not
+        * searchable: Maybe it won't be needed after all.

         */
         */

-       if ('\0' == *startdir) {
-               if (NULL == getcwd(startdir, PATH_MAX)) {
-                       exitcode = (int)MANDOCLEVEL_SYSERR;
-                       if (NULL != targetdir)
-                               say(".", NULL);
-                       return(0);
-               }
-               if (-1 == (fd = open(startdir, O_RDONLY, 0))) {
+       if (0 == getcwd_status) {
+               if (NULL == getcwd(startdir, sizeof(startdir))) {
+                       getcwd_status = 2;
+                       (void)strlcpy(startdir, strerror(errno),
+                           sizeof(startdir));
+               } else
+                       getcwd_status = 1;
+       }
+
+       /*
+        * We are leaving the old base directory.
+        * Do not use it any longer, not even for messages.
+        */
+       *basedir = '\0';
+
+       /*
+        * If and only if the directory was changed earlier and
+        * the next directory to process is given as a relative path,
+        * first go back, or bail out if that is impossible.
+        */
+       if (chdir_status && '/' != *targetdir) {
+               if (2 == getcwd_status) {

                        exitcode = (int)MANDOCLEVEL_SYSERR;
                        exitcode = (int)MANDOCLEVEL_SYSERR;

-                       say(startdir, NULL);
+                       say("", "getcwd: %s", startdir);

                        return(0);
                }
                        return(0);
                }

-               if (NULL == targetdir)
-                       targetdir = startdir;
-       } else {
-               if (-1 == fd)
-                       return(0);
-               if (-1 == fchdir(fd)) {
-                       close(fd);
-                       basedir[0] = '\0';
+               if (-1 == chdir(startdir)) {

                        exitcode = (int)MANDOCLEVEL_SYSERR;
                        exitcode = (int)MANDOCLEVEL_SYSERR;

-                       say(startdir, NULL);
+                       say("", "&chdir %s", startdir);

                        return(0);
                }
                        return(0);
                }

-               if (NULL == targetdir) {
-                       close(fd);
-                       return(1);
-               }

        }
        }

+
+       /*
+        * Always resolve basedir to the canonicalized absolute
+        * pathname and append a trailing slash, such that
+        * we can reliably check whether files are inside.
+        */

        if (NULL == realpath(targetdir, basedir)) {
        if (NULL == realpath(targetdir, basedir)) {

-               basedir[0] = '\0';

                exitcode = (int)MANDOCLEVEL_BADARG;
                exitcode = (int)MANDOCLEVEL_BADARG;

-               say(targetdir, NULL);
+               say("", "&%s: realpath", targetdir);

                return(0);
        } else if (-1 == chdir(basedir)) {
                exitcode = (int)MANDOCLEVEL_BADARG;
                return(0);
        } else if (-1 == chdir(basedir)) {
                exitcode = (int)MANDOCLEVEL_BADARG;

-               say("", NULL);
+               say("", "&chdir");

                return(0);
        }
                return(0);
        }

+       chdir_status = 1;
+       cp = strchr(basedir, '\0');
+       if ('/' != cp[-1]) {
+               if (cp - basedir >= PATH_MAX - 1) {
+                       exitcode = (int)MANDOCLEVEL_SYSERR;
+                       say("", "Filename too long");
+                       return(0);
+               }
+               *cp++ = '/';
+               *cp = '\0';
+       }

        return(1);
 }
 
        return(1);
 }
 


@@ -2064,23 +2451,40 @@ static void
 say(const char *file, const char *format, ...)
 {
        va_list          ap;
 say(const char *file, const char *format, ...)
 {
        va_list          ap;

+       int              use_errno;

 
        if ('\0' != *basedir)
                fprintf(stderr, "%s", basedir);
        if ('\0' != *basedir && '\0' != *file)
 
        if ('\0' != *basedir)
                fprintf(stderr, "%s", basedir);
        if ('\0' != *basedir && '\0' != *file)

-               fputs("//", stderr);
+               fputc('/', stderr);

        if ('\0' != *file)
                fprintf(stderr, "%s", file);
        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);

 }
 }