Generalize the mparse_alloc() and roff_alloc() functions by giving

[mandoc.git] / mandocdb.c

diff --git a/mandocdb.c b/mandocdb.c
index cc99bf3553306d47fd4989a45d330468b942fae7..48d3deb3d13643368e356b9cc6f53397103e5e4b 100644 (file)
--- a/mandocdb.c
+++ b/mandocdb.c
@@ -1,7 +1,7 @@
-/*     $Id: mandocdb.c,v 1.24 2011/12/04 14:23:29 schwarze Exp $ */
+/*     $Id: mandocdb.c,v 1.116 2014/03/19 21:51:20 schwarze Exp $ */

 /*
 /*

- * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
+ * 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


@@ -19,274 +19,318 @@
 #include "config.h"
 #endif
 
 #include "config.h"
 #endif
 

-#include <sys/param.h>
-#include <sys/types.h>

 #include <sys/stat.h>
 #include <sys/stat.h>

+#include <sys/wait.h>

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

-#include <dirent.h>
+#include <ctype.h>
+#include <errno.h>

 #include <fcntl.h>
 #include <fcntl.h>

+#include <fts.h>

 #include <getopt.h>
 #include <getopt.h>

+#include <limits.h>
+#include <stddef.h>

 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 

-#if defined(__linux__)
-# include <endian.h>
-# include <db_185.h>
-#elif defined(__APPLE__)
-# include <libkern/OSByteOrder.h>
-# include <db.h>
+#ifdef HAVE_OHASH
+#include <ohash.h>

 #else
 #else

-# include <db.h>
+#include "compat_ohash.h"

 #endif
 #endif

+#include <sqlite3.h>

 
 

-#include "man.h"

 #include "mdoc.h"
 #include "mdoc.h"

+#include "man.h"

 #include "mandoc.h"
 #include "mandoc.h"

-#include "mandocdb.h"

 #include "manpath.h"
 #include "manpath.h"

+#include "mansearch.h"
+
+extern int mansearch_keymax;
+extern const char *const mansearch_keynames[];
+
+#define        SQL_EXEC(_v) \
+       if (SQLITE_OK != sqlite3_exec(db, (_v), NULL, NULL, NULL)) \
+               fprintf(stderr, "%s\n", sqlite3_errmsg(db))
+#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))
+#define        SQL_BIND_INT(_s, _i, _v) \
+       if (SQLITE_OK != sqlite3_bind_int \
+               ((_s), (_i)++, (_v))) \
+               fprintf(stderr, "%s\n", sqlite3_errmsg(db))
+#define        SQL_BIND_INT64(_s, _i, _v) \
+       if (SQLITE_OK != sqlite3_bind_int64 \
+               ((_s), (_i)++, (_v))) \
+               fprintf(stderr, "%s\n", sqlite3_errmsg(db))
+#define SQL_STEP(_s) \
+       if (SQLITE_DONE != sqlite3_step((_s))) \
+               fprintf(stderr, "%s\n", sqlite3_errmsg(db))

 
 

-#define        MANDOC_BUFSZ      BUFSIZ
-#define        MANDOC_SLOP       1024
-
-#define        MANDOC_SRC        0x1
-#define        MANDOC_FORM       0x2
+enum   op {
+       OP_DEFAULT = 0, /* new dbs from dir list or default config */
+       OP_CONFFILE, /* new databases from custom config file */
+       OP_UPDATE, /* delete/add entries in existing database */
+       OP_DELETE, /* delete entries from existing database */
+       OP_TEST /* change no databases, report potential problems */
+};

 
 

-/* Tiny list for files.  No need to bring in QUEUE. */
+enum   form {
+       FORM_NONE,  /* format is unknown */
+       FORM_SRC,   /* format is -man or -mdoc */
+       FORM_CAT    /* format is cat */
+};

 
 

-struct of {
-       char             *fname; /* heap-allocated */
-       char             *sec;
-       char             *arch;
-       char             *title;
-       int               src_form;
-       struct of        *next; /* NULL for last one */
-       struct of        *first; /* first in list */
+struct str {
+       char            *rendered; /* key in UTF-8 or ASCII form */
+       const struct mpage *mpage; /* if set, the owning parse */
+       uint64_t         mask; /* bitmask in sequence */
+       char             key[]; /* may contain escape sequences */

 };
 
 };
 

-/* Buffer for storing growable data. */
+struct inodev {
+       ino_t            st_ino;
+       dev_t            st_dev;
+};

 
 

-struct buf {
-       char             *cp;
-       size_t            len; /* current length */
-       size_t            size; /* total buffer size */
+struct mpage {
+       struct inodev    inodev;  /* used for hashing routine */
+       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 */

 };
 
 };
 

-/* Operation we're going to perform. */
+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 */
+};

 
 

-enum   op {
-       OP_NEW = 0, /* new database */
-       OP_UPDATE, /* delete/add entries in existing database */
-       OP_DELETE /* delete entries from existing database */
+enum   stmt {
+       STMT_DELETE_PAGE = 0,   /* delete mpage */
+       STMT_INSERT_PAGE,       /* insert mpage */
+       STMT_INSERT_LINK,       /* insert mlink */
+       STMT_INSERT_KEY,        /* insert parsed key */
+       STMT__MAX

 };
 
 };
 

-#define        MAN_ARGS          DB *hash, \
-                         struct buf *buf, \
-                         struct buf *dbuf, \
-                         const struct man_node *n
-#define        MDOC_ARGS         DB *hash, \
-                         struct buf *buf, \
-                         struct buf *dbuf, \
-                         const struct mdoc_node *n, \
-                         const struct mdoc_meta *m
-
-static void              buf_appendmdoc(struct buf *, 
-                               const struct mdoc_node *, int);
-static void              buf_append(struct buf *, const char *);
-static void              buf_appendb(struct buf *, 
-                               const void *, size_t);
-static void              dbt_put(DB *, const char *, DBT *, DBT *);
-static void              hash_put(DB *, const struct buf *, uint64_t);
-static void              hash_reset(DB **);
-static void              index_merge(const struct of *, struct mparse *,
-                               struct buf *, struct buf *, DB *,
-                               DB *, const char *, DB *, const char *,
-                               recno_t, const recno_t *, size_t);
-static void              index_prune(const struct of *, DB *, 
-                               const char *, DB *, const char *, 
-                               recno_t *, recno_t **, size_t *);
-static void              ofile_argbuild(int, char *[], struct of **);
-static int               ofile_dirbuild(const char *, const char *,
-                               const char *, int, struct of **);
-static void              ofile_free(struct of *);
-static void              pformatted(DB *, struct buf *, struct buf *,
-                               const struct of *);
-static int               pman_node(MAN_ARGS);
-static void              pmdoc_node(MDOC_ARGS);
-static void              pmdoc_An(MDOC_ARGS);
-static void              pmdoc_Cd(MDOC_ARGS);
-static void              pmdoc_Er(MDOC_ARGS);
-static void              pmdoc_Ev(MDOC_ARGS);
-static void              pmdoc_Fd(MDOC_ARGS);
-static void              pmdoc_In(MDOC_ARGS);
-static void              pmdoc_Fn(MDOC_ARGS);
-static void              pmdoc_Fo(MDOC_ARGS);
-static void              pmdoc_Nd(MDOC_ARGS);
-static void              pmdoc_Nm(MDOC_ARGS);
-static void              pmdoc_Pa(MDOC_ARGS);
-static void              pmdoc_St(MDOC_ARGS);
-static void              pmdoc_Vt(MDOC_ARGS);
-static void              pmdoc_Xr(MDOC_ARGS);
-static void              usage(void);
-
-typedef        void            (*pmdoc_nf)(MDOC_ARGS);
-
-static const pmdoc_nf    mdocs[MDOC_MAX] = {
-       NULL, /* Ap */
-       NULL, /* Dd */
-       NULL, /* Dt */
-       NULL, /* Os */
-       NULL, /* Sh */ 
-       NULL, /* Ss */ 
-       NULL, /* Pp */ 
-       NULL, /* D1 */
-       NULL, /* Dl */
-       NULL, /* Bd */
-       NULL, /* Ed */
-       NULL, /* Bl */ 
-       NULL, /* El */
-       NULL, /* It */
-       NULL, /* Ad */ 
-       pmdoc_An, /* An */ 
-       NULL, /* Ar */
-       pmdoc_Cd, /* Cd */ 
-       NULL, /* Cm */
-       NULL, /* Dv */ 
-       pmdoc_Er, /* Er */ 
-       pmdoc_Ev, /* Ev */ 
-       NULL, /* Ex */ 
-       NULL, /* Fa */ 
-       pmdoc_Fd, /* Fd */
-       NULL, /* Fl */
-       pmdoc_Fn, /* Fn */ 
-       NULL, /* Ft */ 
-       NULL, /* Ic */ 
-       pmdoc_In, /* In */ 
-       NULL, /* Li */
-       pmdoc_Nd, /* Nd */
-       pmdoc_Nm, /* Nm */
-       NULL, /* Op */
-       NULL, /* Ot */
-       pmdoc_Pa, /* Pa */
-       NULL, /* Rv */
-       pmdoc_St, /* St */ 
-       pmdoc_Vt, /* Va */
-       pmdoc_Vt, /* Vt */ 
-       pmdoc_Xr, /* Xr */ 
-       NULL, /* %A */
-       NULL, /* %B */
-       NULL, /* %D */
-       NULL, /* %I */
-       NULL, /* %J */
-       NULL, /* %N */
-       NULL, /* %O */
-       NULL, /* %P */
-       NULL, /* %R */
-       NULL, /* %T */
-       NULL, /* %V */
-       NULL, /* Ac */
-       NULL, /* Ao */
-       NULL, /* Aq */
-       NULL, /* At */ 
-       NULL, /* Bc */
-       NULL, /* Bf */
-       NULL, /* Bo */
-       NULL, /* Bq */
-       NULL, /* Bsx */
-       NULL, /* Bx */
-       NULL, /* Db */
-       NULL, /* Dc */
-       NULL, /* Do */
-       NULL, /* Dq */
-       NULL, /* Ec */
-       NULL, /* Ef */ 
-       NULL, /* Em */ 
-       NULL, /* Eo */
-       NULL, /* Fx */
-       NULL, /* Ms */ 
-       NULL, /* No */
-       NULL, /* Ns */
-       NULL, /* Nx */
-       NULL, /* Ox */
-       NULL, /* Pc */
-       NULL, /* Pf */
-       NULL, /* Po */
-       NULL, /* Pq */
-       NULL, /* Qc */
-       NULL, /* Ql */
-       NULL, /* Qo */
-       NULL, /* Qq */
-       NULL, /* Re */
-       NULL, /* Rs */
-       NULL, /* Sc */
-       NULL, /* So */
-       NULL, /* Sq */
-       NULL, /* Sm */ 
-       NULL, /* Sx */
-       NULL, /* Sy */
-       NULL, /* Tn */
-       NULL, /* Ux */
-       NULL, /* Xc */
-       NULL, /* Xo */
-       pmdoc_Fo, /* Fo */ 
-       NULL, /* Fc */ 
-       NULL, /* Oo */
-       NULL, /* Oc */
-       NULL, /* Bk */
-       NULL, /* Ek */
-       NULL, /* Bt */
-       NULL, /* Hf */
-       NULL, /* Fr */
-       NULL, /* Ud */
-       NULL, /* Lb */
-       NULL, /* Lp */ 
-       NULL, /* Lk */ 
-       NULL, /* Mt */ 
-       NULL, /* Brq */ 
-       NULL, /* Bro */ 
-       NULL, /* Brc */ 
-       NULL, /* %C */
-       NULL, /* Es */
-       NULL, /* En */
-       NULL, /* Dx */
-       NULL, /* %Q */
-       NULL, /* br */
-       NULL, /* sp */
-       NULL, /* %U */
-       NULL, /* Ta */
+typedef        int (*mdoc_fp)(struct mpage *, const struct mdoc_node *);
+
+struct mdoc_handler {
+       mdoc_fp          fp; /* optional handler */
+       uint64_t         mask;  /* set unless handler returns 0 */

 };
 
 };
 

-static const char       *progname;
-static int               use_all;  /* Use all directories and files. */
-static int               verb;  /* Output verbosity level. */
+static void     dbclose(int);
+static void     dbadd(const struct mpage *, struct mchars *);
+static int      dbopen(int);
+static void     dbprune(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     mlink_add(struct mlink *, const struct stat *);
+static int      mlink_check(struct mpage *, struct mlink *);
+static void     mlink_free(struct mlink *);
+static void     mlinks_undupe(struct mpage *);
+static void     mpages_free(void);
+static void     mpages_merge(struct mchars *, struct mparse *);
+static void     parse_cat(struct mpage *);
+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_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_Xr(struct mpage *, const struct mdoc_node *);
+static void     putkey(const struct mpage *, char *, uint64_t);
+static void     putkeys(const struct mpage *,
+                       const char *, size_t, uint64_t);
+static void     putmdockey(const struct mpage *,
+                       const struct mdoc_node *, uint64_t);
+static void     render_key(struct mchars *, struct str *);
+static void     say(const char *, const char *, ...);
+static int      set_basedir(const char *);
+static int      treescan(void);
+static size_t   utf8(unsigned int, char [7]);
+
+static char             tempfilename[32];
+static char            *progname;
+static int              nodb; /* no database changes */
+static int              mparse_options; /* abort the parse early */
+static int              use_all; /* use all found files */
+static int              verb; /* print what we're doing */
+static int              warnings; /* warn about crap */
+static int              write_utf8; /* write UTF-8 output; else ASCII */
+static int              exitcode; /* to be returned by main */
+static enum op          op; /* operational mode */
+static char             basedir[PATH_MAX]; /* current base directory */
+static struct ohash     mpages; /* table of distinct manual pages */
+static struct ohash     mlinks; /* table of directory entries */
+static struct ohash     strings; /* table of all strings */
+static sqlite3         *db = NULL; /* current database */
+static sqlite3_stmt    *stmts[STMT__MAX]; /* current statements */
+
+static const struct mdoc_handler mdocs[MDOC_MAX] = {
+       { NULL, 0 },  /* Ap */
+       { NULL, 0 },  /* Dd */
+       { NULL, 0 },  /* Dt */
+       { NULL, 0 },  /* Os */
+       { parse_mdoc_Sh, TYPE_Sh }, /* Sh */
+       { parse_mdoc_head, TYPE_Ss }, /* Ss */
+       { NULL, 0 },  /* Pp */
+       { NULL, 0 },  /* D1 */
+       { NULL, 0 },  /* Dl */
+       { NULL, 0 },  /* Bd */
+       { NULL, 0 },  /* Ed */
+       { NULL, 0 },  /* Bl */
+       { NULL, 0 },  /* El */
+       { NULL, 0 },  /* It */
+       { NULL, 0 },  /* Ad */
+       { NULL, TYPE_An },  /* An */
+       { NULL, TYPE_Ar },  /* Ar */
+       { NULL, TYPE_Cd },  /* Cd */
+       { NULL, TYPE_Cm },  /* Cm */
+       { NULL, TYPE_Dv },  /* Dv */
+       { NULL, TYPE_Er },  /* Er */
+       { NULL, TYPE_Ev },  /* Ev */
+       { NULL, 0 },  /* Ex */
+       { NULL, TYPE_Fa },  /* Fa */
+       { parse_mdoc_Fd, 0 },  /* Fd */
+       { NULL, TYPE_Fl },  /* Fl */
+       { parse_mdoc_Fn, 0 },  /* Fn */
+       { NULL, TYPE_Ft },  /* Ft */
+       { NULL, TYPE_Ic },  /* Ic */
+       { NULL, TYPE_In },  /* In */
+       { NULL, TYPE_Li },  /* Li */
+       { parse_mdoc_Nd, TYPE_Nd },  /* Nd */
+       { parse_mdoc_Nm, TYPE_Nm },  /* Nm */
+       { NULL, 0 },  /* Op */
+       { NULL, 0 },  /* Ot */
+       { NULL, TYPE_Pa },  /* Pa */
+       { NULL, 0 },  /* Rv */
+       { NULL, TYPE_St },  /* St */
+       { NULL, TYPE_Va },  /* Va */
+       { parse_mdoc_body, TYPE_Va },  /* Vt */
+       { parse_mdoc_Xr, 0 },  /* Xr */
+       { NULL, 0 },  /* %A */
+       { NULL, 0 },  /* %B */
+       { NULL, 0 },  /* %D */
+       { NULL, 0 },  /* %I */
+       { NULL, 0 },  /* %J */
+       { NULL, 0 },  /* %N */
+       { NULL, 0 },  /* %O */
+       { NULL, 0 },  /* %P */
+       { NULL, 0 },  /* %R */
+       { NULL, 0 },  /* %T */
+       { NULL, 0 },  /* %V */
+       { NULL, 0 },  /* Ac */
+       { NULL, 0 },  /* Ao */
+       { NULL, 0 },  /* Aq */
+       { NULL, TYPE_At },  /* At */
+       { NULL, 0 },  /* Bc */
+       { NULL, 0 },  /* Bf */
+       { NULL, 0 },  /* Bo */
+       { NULL, 0 },  /* Bq */
+       { NULL, TYPE_Bsx },  /* Bsx */
+       { NULL, TYPE_Bx },  /* Bx */
+       { NULL, 0 },  /* Db */
+       { NULL, 0 },  /* Dc */
+       { NULL, 0 },  /* Do */
+       { NULL, 0 },  /* Dq */
+       { NULL, 0 },  /* Ec */
+       { NULL, 0 },  /* Ef */
+       { NULL, TYPE_Em },  /* Em */
+       { NULL, 0 },  /* Eo */
+       { NULL, TYPE_Fx },  /* Fx */
+       { NULL, TYPE_Ms },  /* Ms */
+       { NULL, 0 },  /* No */
+       { NULL, 0 },  /* Ns */
+       { NULL, TYPE_Nx },  /* Nx */
+       { NULL, TYPE_Ox },  /* Ox */
+       { NULL, 0 },  /* Pc */
+       { NULL, 0 },  /* Pf */
+       { NULL, 0 },  /* Po */
+       { NULL, 0 },  /* Pq */
+       { NULL, 0 },  /* Qc */
+       { NULL, 0 },  /* Ql */
+       { NULL, 0 },  /* Qo */
+       { NULL, 0 },  /* Qq */
+       { NULL, 0 },  /* Re */
+       { NULL, 0 },  /* Rs */
+       { NULL, 0 },  /* Sc */
+       { NULL, 0 },  /* So */
+       { NULL, 0 },  /* Sq */
+       { NULL, 0 },  /* Sm */
+       { NULL, 0 },  /* Sx */
+       { NULL, TYPE_Sy },  /* Sy */
+       { NULL, TYPE_Tn },  /* Tn */
+       { NULL, 0 },  /* Ux */
+       { NULL, 0 },  /* Xc */
+       { NULL, 0 },  /* Xo */
+       { parse_mdoc_head, 0 },  /* Fo */
+       { NULL, 0 },  /* Fc */
+       { NULL, 0 },  /* Oo */
+       { NULL, 0 },  /* Oc */
+       { NULL, 0 },  /* Bk */
+       { NULL, 0 },  /* Ek */
+       { NULL, 0 },  /* Bt */
+       { NULL, 0 },  /* Hf */
+       { NULL, 0 },  /* Fr */
+       { NULL, 0 },  /* Ud */
+       { NULL, TYPE_Lb },  /* Lb */
+       { NULL, 0 },  /* Lp */
+       { NULL, TYPE_Lk },  /* Lk */
+       { NULL, TYPE_Mt },  /* Mt */
+       { NULL, 0 },  /* Brq */
+       { NULL, 0 },  /* Bro */
+       { NULL, 0 },  /* Brc */
+       { NULL, 0 },  /* %C */
+       { NULL, 0 },  /* Es */
+       { NULL, 0 },  /* En */
+       { NULL, TYPE_Dx },  /* Dx */
+       { NULL, 0 },  /* %Q */
+       { NULL, 0 },  /* br */
+       { NULL, 0 },  /* sp */
+       { NULL, 0 },  /* %U */
+       { NULL, 0 },  /* Ta */
+};

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

-       struct mparse   *mp; /* parse sequence */
-       struct manpaths  dirs;
-       enum op          op; /* current operation */
-       const char      *dir;
-       char             ibuf[MAXPATHLEN], /* index fname */
-                        fbuf[MAXPATHLEN];  /* btree fname */
-       int              ch, i, flags;
-       DB              *idx, /* index database */
-                       *db, /* keyword database */
-                       *hash; /* temporary keyword hashtable */
-       BTREEINFO        info; /* btree configuration */
-       recno_t          maxrec; /* last record number in the index */
-       recno_t         *recs; /* the numbers of all empty records */
-       size_t           sz1, sz2,
-                        recsz, /* number of allocated slots in recs */
-                        reccur; /* current number of empty records */
-       struct buf       buf, /* keyword buffer */
-                        dbuf; /* description buffer */
-       struct of       *of; /* list of files for processing */
-       extern int       optind;
-       extern char     *optarg;
+       int               ch, i;
+       size_t            j, sz;
+       const char       *path_arg;
+       struct mchars    *mc;
+       struct manpaths   dirs;
+       struct mparse    *mp;
+       struct ohash_info mpages_info, mlinks_info;
+
+       memset(stmts, 0, STMT__MAX * sizeof(sqlite3_stmt *));
+       memset(&dirs, 0, sizeof(struct manpaths));
+
+       mpages_info.alloc  = mlinks_info.alloc  = hash_alloc;
+       mpages_info.halloc = mlinks_info.halloc = hash_halloc;
+       mpages_info.hfree  = mlinks_info.hfree  = hash_free;
+
+       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)


@@ -294,244 +338,655 @@ main(int argc, char *argv[])
        else
                ++progname;
 
        else
                ++progname;
 

-       memset(&dirs, 0, sizeof(struct manpaths));
+       /*
+        * 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)) { \
+               fprintf(stderr, "-%c: Conflicting option\n", (_ch)); \
+               goto usage; \
+       } while (/*CONSTCOND*/0)
+
+       path_arg = NULL;
+       op = OP_DEFAULT;
+       mparse_options = MPARSE_SO;

 
 

-       verb = 0;
-       use_all = 0;
-       of = NULL;
-       db = idx = NULL;
-       mp = NULL;
-       hash = NULL;
-       recs = NULL;
-       recsz = reccur = 0;
-       maxrec = 0;
-       op = OP_NEW;
-       dir = NULL;
-
-       while (-1 != (ch = getopt(argc, argv, "ad:u:v")))
+       while (-1 != (ch = getopt(argc, argv, "aC:d:nQT:tu:vW")))

                switch (ch) {
                case ('a'):
                        use_all = 1;
                        break;
                switch (ch) {
                case ('a'):
                        use_all = 1;
                        break;

+               case ('C'):
+                       CHECKOP(op, ch);
+                       path_arg = optarg;
+                       op = OP_CONFFILE;
+                       break;

                case ('d'):
                case ('d'):

-                       dir = optarg;
+                       CHECKOP(op, ch);
+                       path_arg = optarg;

                        op = OP_UPDATE;
                        break;
                        op = OP_UPDATE;
                        break;

+               case ('n'):
+                       nodb = 1;
+                       break;
+               case ('Q'):
+                       mparse_options |= MPARSE_QUICK;
+                       break;
+               case ('T'):
+                       if (strcmp(optarg, "utf8")) {
+                               fprintf(stderr, "-T%s: Unsupported "
+                                   "output format\n", optarg);
+                               goto usage;
+                       }
+                       write_utf8 = 1;
+                       break;
+               case ('t'):
+                       CHECKOP(op, ch);
+                       dup2(STDOUT_FILENO, STDERR_FILENO);
+                       op = OP_TEST;
+                       nodb = warnings = 1;
+                       break;

                case ('u'):
                case ('u'):

-                       dir = optarg;
+                       CHECKOP(op, ch);
+                       path_arg = optarg;

                        op = OP_DELETE;
                        break;
                case ('v'):
                        verb++;
                        break;
                        op = OP_DELETE;
                        break;
                case ('v'):
                        verb++;
                        break;

+               case ('W'):
+                       warnings = 1;
+                       break;

                default:
                default:

-                       usage();
-                       return((int)MANDOCLEVEL_BADARG);
+                       goto usage;

                }
 
        argc -= optind;
        argv += optind;
 
                }
 
        argc -= optind;
        argv += optind;
 

-       memset(&info, 0, sizeof(BTREEINFO));
-       info.flags = R_DUP;
+       if (OP_CONFFILE == op && argc > 0) {
+               fprintf(stderr, "-C: Too many arguments\n");
+               goto usage;
+       }
+
+       exitcode = (int)MANDOCLEVEL_OK;
+       mp = mparse_alloc(mparse_options, MANDOCLEVEL_FATAL, NULL, NULL);
+       mc = mchars_alloc();

 
 

-       mp = mparse_alloc(MPARSE_AUTO, MANDOCLEVEL_FATAL, NULL, NULL);
+       ohash_init(&mpages, 6, &mpages_info);
+       ohash_init(&mlinks, 6, &mlinks_info);

 
 

-       memset(&buf, 0, sizeof(struct buf));
-       memset(&dbuf, 0, sizeof(struct buf));
+       if (OP_UPDATE == op || OP_DELETE == op || OP_TEST == op) {
+               /* 
+                * Force processing all files.
+                */
+               use_all = 1;

 
 

-       buf.size = dbuf.size = MANDOC_BUFSZ;
+               /*
+                * All of these deal with a specific directory.
+                * Jump into that directory then collect files specified
+                * on the command-line.
+                */
+               if (0 == set_basedir(path_arg))
+                       goto out;
+               for (i = 0; i < argc; i++)
+                       filescan(argv[i]);
+               if (0 == dbopen(1))
+                       goto out;
+               if (OP_TEST != op)
+                       dbprune();
+               if (OP_DELETE != op)
+                       mpages_merge(mc, mp);
+               dbclose(1);
+       } else {
+               /*
+                * If we have arguments, use them as our manpaths.
+                * If we don't, grok from manpath(1) or however else
+                * manpath_parse() wants to do it.
+                */
+               if (argc > 0) {
+                       dirs.paths = mandoc_calloc
+                               (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);

 
 

-       buf.cp = mandoc_malloc(buf.size);
-       dbuf.cp = mandoc_malloc(dbuf.size);
+               /*
+                * First scan the tree rooted at a base directory, then
+                * build a new database and finally move it into place.
+                * Ignore zero-length directories and strip trailing
+                * slashes.
+                */
+               for (j = 0; j < dirs.sz; j++) {
+                       sz = strlen(dirs.paths[j]);
+                       if (sz && '/' == dirs.paths[j][sz - 1])
+                               dirs.paths[j][--sz] = '\0';
+                       if (0 == sz)
+                               continue;

 
 

-       flags = OP_NEW == op ? O_CREAT|O_TRUNC|O_RDWR : O_CREAT|O_RDWR;
+                       if (j) {
+                               ohash_init(&mpages, 6, &mpages_info);
+                               ohash_init(&mlinks, 6, &mlinks_info);
+                       }

 
 

-       if (OP_UPDATE == op || OP_DELETE == op) {
-               ibuf[0] = fbuf[0] = '\0';
+                       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;
+
+                       mpages_merge(mc, mp);
+                       dbclose(0);
+
+                       if (j + 1 < dirs.sz) {
+                               mpages_free();
+                               ohash_delete(&mpages);
+                               ohash_delete(&mlinks);
+                       }
+               }
+       }
+out:
+       set_basedir(NULL);
+       manpath_free(&dirs);
+       mchars_free(mc);
+       mparse_free(mp);
+       mpages_free();
+       ohash_delete(&mpages);
+       ohash_delete(&mlinks);
+       return(exitcode);
+usage:
+       fprintf(stderr, "usage: %s [-anQvW] [-C file] [-Tutf8]\n"
+                       "       %s [-anQvW] [-Tutf8] dir ...\n"
+                       "       %s [-nQvW] [-Tutf8] -d dir [file ...]\n"
+                       "       %s [-nvW] -u dir [file ...]\n"
+                       "       %s [-Q] -t file ...\n",
+                      progname, progname, progname, 
+                      progname, progname);
+
+       return((int)MANDOCLEVEL_BADARG);
+}

 
 

-               strlcat(fbuf, dir, MAXPATHLEN);
-               strlcat(fbuf, "/", MAXPATHLEN);
-               sz1 = strlcat(fbuf, MANDOC_DB, MAXPATHLEN);
+/*
+ * Scan a directory tree rooted at "basedir" for manpages.
+ * We use fts(), scanning directory parts along the way for clues to our
+ * section and architecture.
+ *
+ * If use_all has been specified, grok all files.
+ * If not, sanitise paths to the following:
+ *
+ *   [./]man*[/<arch>]/<name>.<section> 
+ *   or
+ *   [./]cat<section>[/<arch>]/<name>.0
+ *
+ * TODO: accomodate for multi-language directories.
+ */
+static int
+treescan(void)
+{
+       FTS             *f;
+       FTSENT          *ff;
+       struct mlink    *mlink;
+       int              dform;
+       char            *dsec, *arch, *fsec, *cp;
+       const char      *path;
+       const char      *argv[2];

 
 

-               strlcat(ibuf, dir, MAXPATHLEN);
-               strlcat(ibuf, "/", MAXPATHLEN);
-               sz2 = strlcat(ibuf, MANDOC_IDX, MAXPATHLEN);
+       argv[0] = ".";
+       argv[1] = (char *)NULL;

 
 

-               if (sz1 >= MAXPATHLEN || sz2 >= MAXPATHLEN) {
-                       fprintf(stderr, "%s: Path too long\n", dir);
-                       exit((int)MANDOCLEVEL_BADARG);
-               }
+       /*
+        * Walk through all components under the directory, using the
+        * logical descent of files.
+        */
+       f = fts_open((char * const *)argv, FTS_LOGICAL, NULL);
+       if (NULL == f) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("", NULL);
+               return(0);
+       }

 
 

-               db = dbopen(fbuf, flags, 0644, DB_BTREE, &info);
-               idx = dbopen(ibuf, flags, 0644, DB_RECNO, NULL);
+       dsec = arch = NULL;
+       dform = FORM_NONE;

 
 

-               if (NULL == db) {
-                       perror(fbuf);
-                       exit((int)MANDOCLEVEL_SYSERR);
-               } else if (NULL == idx) {
-                       perror(ibuf);
-                       exit((int)MANDOCLEVEL_SYSERR);
+       while (NULL != (ff = fts_read(f))) {
+               path = ff->fts_path + 2;
+               /*
+                * If we're a regular file, add an mlink by using the
+                * stored directory data and handling the filename.
+                */
+               if (FTS_F == ff->fts_info) {
+                       if (0 == strcmp(path, MANDOC_DB))
+                               continue;
+                       if ( ! use_all && ff->fts_level < 2) {
+                               if (warnings)
+                                       say(path, "Extraneous file");
+                               continue;
+                       } else if (NULL == (fsec =
+                                       strrchr(ff->fts_name, '.'))) {
+                               if ( ! use_all) {
+                                       if (warnings)
+                                               say(path,
+                                                   "No filename suffix");
+                                       continue;
+                               }
+                       } else if (0 == strcmp(++fsec, "html")) {
+                               if (warnings)
+                                       say(path, "Skip html");
+                               continue;
+                       } else if (0 == strcmp(fsec, "gz")) {
+                               if (warnings)
+                                       say(path, "Skip gz");
+                               continue;
+                       } else if (0 == strcmp(fsec, "ps")) {
+                               if (warnings)
+                                       say(path, "Skip ps");
+                               continue;
+                       } else if (0 == strcmp(fsec, "pdf")) {
+                               if (warnings)
+                                       say(path, "Skip pdf");
+                               continue;
+                       } else if ( ! use_all &&
+                           ((FORM_SRC == dform && strcmp(fsec, dsec)) ||
+                            (FORM_CAT == dform && strcmp(fsec, "0")))) {
+                               if (warnings)
+                                       say(path, "Wrong filename suffix");
+                               continue;
+                       } else
+                               fsec[-1] = '\0';
+
+                       mlink = mandoc_calloc(1, sizeof(struct mlink));
+                       strlcpy(mlink->file, path, sizeof(mlink->file));
+                       mlink->dform = dform;
+                       mlink->dsec = dsec;
+                       mlink->arch = arch;
+                       mlink->name = ff->fts_name;
+                       mlink->fsec = fsec;
+                       mlink_add(mlink, ff->fts_statp);
+                       continue;
+               } else if (FTS_D != ff->fts_info &&
+                               FTS_DP != ff->fts_info) {
+                       if (warnings)
+                               say(path, "Not a regular file");
+                       continue;

                }
 
                }
 

-               if (verb > 2) {
-                       printf("%s: Opened\n", fbuf);
-                       printf("%s: Opened\n", ibuf);
+               switch (ff->fts_level) {
+               case (0):
+                       /* Ignore the root directory. */
+                       break;
+               case (1):
+                       /*
+                        * This might contain manX/ or catX/.
+                        * Try to infer this from the name.
+                        * If we're not in use_all, enforce it.
+                        */
+                       cp = ff->fts_name;
+                       if (FTS_DP == ff->fts_info)
+                               break;
+
+                       if (0 == strncmp(cp, "man", 3)) {
+                               dform = FORM_SRC;
+                               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) 
+                               break;
+
+                       if (warnings)
+                               say(path, "Unknown directory part");
+                       fts_set(f, ff, FTS_SKIP);
+                       break;
+               case (2):
+                       /*
+                        * Possibly our architecture.
+                        * If we're descending, keep tabs on it.
+                        */
+                       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;
+                       if (warnings)
+                               say(path, "Extraneous directory part");
+                       fts_set(f, ff, FTS_SKIP);
+                       break;

                }
                }

+       }

 
 

-               ofile_argbuild(argc, argv, &of);
-               if (NULL == of)
-                       goto out;
+       fts_close(f);
+       return(1);
+}
+
+/*
+ * 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
+ *
+ *   [./]man*[/<arch>]/<name>.<section> 
+ *   or
+ *   [./]cat<section>[/<arch>]/<name>.0
+ *
+ * See treescan() for the fts(3) version of this.
+ */
+static void
+filescan(const char *file)
+{
+       char             buf[PATH_MAX];
+       struct stat      st;
+       struct mlink    *mlink;
+       char            *p, *start;

 
 

-               of = of->first;
+       assert(use_all);

 
 

-               index_prune(of, db, fbuf, idx, ibuf,
-                               &maxrec, &recs, &recsz);
+       if (0 == strncmp(file, "./", 2))
+               file += 2;

 
 

-               /*
-                * Go to the root of the respective manual tree
-                * such that .so links work.  In case of failure,
-                * just prod on, even though .so links won't work.
-                */
+       if (NULL == realpath(file, buf)) {
+               exitcode = (int)MANDOCLEVEL_BADARG;
+               say(file, NULL);
+               return;
+       }

 
 

-               if (OP_UPDATE == op) {
-                       chdir(dir);
-                       index_merge(of, mp, &dbuf, &buf, hash,
-                                       db, fbuf, idx, ibuf,
-                                       maxrec, recs, reccur);
-               }
+       if (strstr(buf, basedir) == buf)
+               start = buf + strlen(basedir) + 1;
+       else if (OP_TEST == op)
+               start = buf;
+       else {
+               exitcode = (int)MANDOCLEVEL_BADARG;
+               say("", "%s: outside base directory", buf);
+               return;
+       }

 
 

-               goto out;
+       if (-1 == stat(buf, &st)) {
+               exitcode = (int)MANDOCLEVEL_BADARG;
+               say(file, NULL);
+               return;
+       } else if ( ! (S_IFREG & st.st_mode)) {
+               exitcode = (int)MANDOCLEVEL_BADARG;
+               say(file, "Not a regular file");
+               return;

        }
 
        }
 

+       mlink = mandoc_calloc(1, sizeof(struct mlink));
+       strlcpy(mlink->file, start, sizeof(mlink->file));
+

        /*
        /*

-        * Configure the directories we're going to scan.
-        * If we have command-line arguments, use them.
-        * If not, we use man(1)'s method (see mandocdb.8).
+        * First try to guess our directory structure.
+        * If we find a separator, try to look for man* or cat*.
+        * If we find one of these and what's underneath is a directory,
+        * assume it's an architecture.

         */
         */

+       if (NULL != (p = strchr(start, '/'))) {
+               *p++ = '\0';
+               if (0 == strncmp(start, "man", 3)) {
+                       mlink->dform = FORM_SRC;
+                       mlink->dsec = start + 3;
+               } else if (0 == strncmp(start, "cat", 3)) {
+                       mlink->dform = FORM_CAT;
+                       mlink->dsec = start + 3;
+               }

 
 

-       if (argc > 0) {
-               dirs.paths = mandoc_malloc(argc * sizeof(char *));
-               dirs.sz = argc;
-               for (i = 0; i < argc; i++)
-                       dirs.paths[i] = mandoc_strdup(argv[i]);
-       } else
-               manpath_parse(&dirs, NULL, NULL);
+               start = p;
+               if (NULL != mlink->dsec && NULL != (p = strchr(start, '/'))) {
+                       *p++ = '\0';
+                       mlink->arch = start;
+                       start = p;
+               }
+       }

 
 

-       for (i = 0; i < dirs.sz; i++) {
-               ibuf[0] = fbuf[0] = '\0';
+       /*
+        * Now check the file suffix.
+        * Suffix of `.0' indicates a catpage, `.1-9' is a manpage.
+        */
+       p = strrchr(start, '\0');
+       while (p-- > start && '/' != *p && '.' != *p)
+               /* Loop. */ ;

 
 

-               strlcat(fbuf, dirs.paths[i], MAXPATHLEN);
-               strlcat(fbuf, "/", MAXPATHLEN);
-               sz1 = strlcat(fbuf, MANDOC_DB, MAXPATHLEN);
+       if ('.' == *p) {
+               *p++ = '\0';
+               mlink->fsec = p;
+       }

 
 

-               strlcat(ibuf, dirs.paths[i], MAXPATHLEN);
-               strlcat(ibuf, "/", MAXPATHLEN);
-               sz2 = strlcat(ibuf, MANDOC_IDX, MAXPATHLEN);
+       /*
+        * Now try to parse the name.
+        * Use the filename portion of the path.
+        */
+       mlink->name = start;
+       if (NULL != (p = strrchr(start, '/'))) {
+               mlink->name = p + 1;
+               *p = '\0';
+       }
+       mlink_add(mlink, &st);
+}

 
 

-               if (sz1 >= MAXPATHLEN || sz2 >= MAXPATHLEN) {
-                       fprintf(stderr, "%s: Path too long\n",
-                                       dirs.paths[i]);
-                       exit((int)MANDOCLEVEL_BADARG);
-               }
+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;
+}

 
 

-               if (db)
-                       (*db->close)(db);
-               if (idx)
-                       (*idx->close)(idx);
+static void
+mlink_free(struct mlink *mlink)
+{

 
 

-               db = dbopen(fbuf, flags, 0644, DB_BTREE, &info);
-               idx = dbopen(ibuf, flags, 0644, DB_RECNO, NULL);
+       free(mlink->dsec);
+       free(mlink->arch);
+       free(mlink->name);
+       free(mlink->fsec);
+       free(mlink);
+}

 
 

-               if (NULL == db) {
-                       perror(fbuf);
-                       exit((int)MANDOCLEVEL_SYSERR);
-               } else if (NULL == idx) {
-                       perror(ibuf);
-                       exit((int)MANDOCLEVEL_SYSERR);
+static void
+mpages_free(void)
+{
+       struct mpage    *mpage;
+       struct mlink    *mlink;
+       unsigned int     slot;
+
+       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);
+       }
+}

 
 

-               if (verb > 2) {
-                       printf("%s: Truncated\n", fbuf);
-                       printf("%s: Truncated\n", ibuf);
+/*
+ * 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 void
+mlinks_undupe(struct mpage *mpage)
+{
+       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;

                }
                }

+               if (strlcpy(buf, mlink->file, PATH_MAX) >= PATH_MAX) {
+                       if (warnings)
+                               say(mlink->file, "Filename too long");
+                       goto nextlink;
+               }
+               bufp = strstr(buf, "cat");
+               assert(NULL != bufp);
+               memcpy(bufp, "man", 3);
+               if (NULL != (bufp = strrchr(buf, '.')))
+                       *++bufp = '\0';
+               strlcat(buf, mlink->dsec, PATH_MAX);
+               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;
+       }
+}

 
 

-               ofile_free(of);
-               of = NULL;
+static int
+mlink_check(struct mpage *mpage, struct mlink *mlink)
+{
+       int      match;

 
 

-               if ( ! ofile_dirbuild(dirs.paths[i], NULL, NULL,
-                                       0, &of)) 
-                       exit((int)MANDOCLEVEL_SYSERR);
+       match = 1;

 
 

-               if (NULL == of)
-                       continue;
+       /*
+        * 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).
+        */

 
 

-               of = of->first;
+       if (FORM_SRC == mpage->form &&
+           strcasecmp(mpage->sec, mlink->dsec)) {
+               match = 0;
+               say(mlink->file, "Section \"%s\" manual in %s directory",
+                   mpage->sec, mlink->dsec);
+       }

 
 

-               /*
-                * Go to the root of the respective manual tree
-                * such that .so links work.  In case of failure,
-                * just prod on, even though .so links won't work.
-                */
+       /*
+        * 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.
+        */

 
 

-               chdir(dirs.paths[i]);
-               index_merge(of, mp, &dbuf, &buf, hash, db, fbuf,
-                               idx, ibuf, maxrec, recs, reccur);
+       if (strcasecmp(mpage->arch, mlink->arch)) {
+               match = 0;
+               say(mlink->file, "Architecture \"%s\" manual in "
+                   "\"%s\" directory", mpage->arch, mlink->arch);

        }
 
        }
 

-out:
-       if (db)
-               (*db->close)(db);
-       if (idx)
-               (*idx->close)(idx);
-       if (hash)
-               (*hash->close)(hash);
-       if (mp)
-               mparse_free(mp);
-
-       manpath_free(&dirs);
-       ofile_free(of);
-       free(buf.cp);
-       free(dbuf.cp);
-       free(recs);
+       if (strcasecmp(mpage->title, mlink->name))
+               match = 0;

 
 

-       return(MANDOCLEVEL_OK);
+       return(match);

 }
 
 }
 

-void
-index_merge(const struct of *of, struct mparse *mp,
-               struct buf *dbuf, struct buf *buf, DB *hash,
-               DB *db, const char *dbf, DB *idx, const char *idxf,
-               recno_t maxrec, const recno_t *recs, size_t reccur)
+/*
+ * 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
+mpages_merge(struct mchars *mc, struct mparse *mp)

 {
 {

-       recno_t          rec;
-       int              ch;
-       DBT              key, val;
-       struct mdoc     *mdoc;
-       struct man      *man;
-       const char      *fn, *msec, *mtitle, *arch;
-       size_t           sv;
-       unsigned         seq;
-       struct db_val    vbuf;
-
-       for (rec = 0; of; of = of->next) {
-               fn = of->fname;
-
-               /*
-                * Reclaim an empty index record, if available.
-                */
-
-               if (reccur > 0) {
-                       --reccur;
-                       rec = recs[(int)reccur];
-               } else if (maxrec > 0) {
-                       rec = maxrec;
-                       maxrec = 0;
-               } else
-                       rec++;
+       char                     any[] = "any";
+       struct ohash_info        str_info;
+       struct mpage            *mpage;
+       struct mlink            *mlink;
+       struct mdoc             *mdoc;
+       struct man              *man;
+       char                    *cp;
+       int                      match;
+       unsigned int             pslot;
+       enum mandoclevel         lvl;
+
+       str_info.alloc = hash_alloc;
+       str_info.halloc = hash_halloc;
+       str_info.hfree = hash_free;
+       str_info.key_offset = offsetof(struct str, key);
+
+       if (0 == nodb)
+               SQL_EXEC("BEGIN TRANSACTION");
+
+       mpage = ohash_first(&mpages, &pslot);
+       while (NULL != mpage) {
+               mlinks_undupe(mpage);
+               if (NULL == mpage->mlinks) {
+                       mpage = ohash_next(&mpages, &pslot);
+                       continue;
+               }

 
 

+               ohash_init(&strings, 6, &str_info);

                mparse_reset(mp);
                mparse_reset(mp);

-               hash_reset(&hash);

                mdoc = NULL;
                man = NULL;
 
                mdoc = NULL;
                man = NULL;
 


@@ -540,358 +995,436 @@ index_merge(const struct of *of, struct mparse *mp,
                 * source code, unless it is already known to be
                 * formatted.  Fall back to formatted mode.
                 */
                 * source code, unless it is already known to be
                 * formatted.  Fall back to formatted mode.
                 */

-
-               if ((MANDOC_SRC & of->src_form ||
-                   ! (MANDOC_FORM & of->src_form)) &&
-                   MANDOCLEVEL_FATAL > mparse_readfd(mp, -1, fn))
-                       mparse_result(mp, &mdoc, &man);
+               if (FORM_CAT != mpage->mlinks->dform ||
+                   FORM_CAT != mpage->mlinks->fform) {
+                       lvl = mparse_readfd(mp, -1, mpage->mlinks->file);
+                       if (lvl < MANDOCLEVEL_FATAL)
+                               mparse_result(mp, &mdoc, &man);
+               }

 
                if (NULL != mdoc) {
 
                if (NULL != mdoc) {

-                       msec = mdoc_meta(mdoc)->msec;
-                       arch = mdoc_meta(mdoc)->arch;
-                       mtitle = mdoc_meta(mdoc)->title;
+                       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) {
                } else if (NULL != man) {

-                       msec = man_meta(man)->msec;
-                       arch = NULL;
-                       mtitle = man_meta(man)->title;
+                       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 {
                } else {

-                       msec = of->sec;
-                       arch = of->arch;
-                       mtitle = of->title;
+                       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);

                }
                }

-
-               /*
-                * By default, skip a file if the manual section
-                * and architecture given in the file disagree
-                * with the directory where the file is located.
-                */
-
-               if (0 == use_all) {
-                       assert(of->sec);
-                       assert(msec);
-                       if (strcmp(msec, of->sec))
-                               continue;
-
-                       if (NULL == arch) {
-                               if (NULL != of->arch)
-                                       continue;
-                       } else if (NULL == of->arch ||
-                                       strcmp(arch, of->arch))
-                               continue;
+               putkey(mpage, mpage->sec, TYPE_sec);
+               putkey(mpage, '\0' == *mpage->arch ?
+                   any : mpage->arch, TYPE_arch);
+
+               for (mlink = mpage->mlinks; mlink; mlink = mlink->next) {
+                       if ('\0' != *mlink->dsec)
+                               putkey(mpage, mlink->dsec, TYPE_sec);
+                       if ('\0' != *mlink->fsec)
+                               putkey(mpage, mlink->fsec, TYPE_sec);
+                       putkey(mpage, '\0' == *mlink->arch ?
+                           any : mlink->arch, TYPE_arch);
+                       putkey(mpage, mlink->name, TYPE_Nm);

                }
 
                }
 

-               if (NULL == arch)
-                       arch = "";
-
-               /* 
-                * By default, skip a file if the title given
-                * in the file disagrees with the file name.
-                * If both agree, use the file name as the title,
-                * because the one in the file usually is all caps.
-                */
-
-               assert(of->title);
-               assert(mtitle);
-
-               if (0 == strcasecmp(mtitle, of->title))
-                       mtitle = of->title;
-               else if (0 == use_all)
-                       continue;
-
-               /* 
-                * The index record value consists of a nil-terminated
-                * filename, a nil-terminated manual section, and a
-                * nil-terminated description.  Since the description
-                * may not be set, we set a sentinel to see if we're
-                * going to write a nil byte in its place.
-                */
-
-               dbuf->len = 0;
-               buf_append(dbuf, mdoc ? "mdoc" : (man ? "man" : "cat"));
-               buf_appendb(dbuf, fn, strlen(fn) + 1);
-               buf_appendb(dbuf, msec, strlen(msec) + 1);
-               buf_appendb(dbuf, mtitle, strlen(mtitle) + 1);
-               buf_appendb(dbuf, arch, strlen(arch) + 1);
-
-               sv = dbuf->len;
-
-               /* Fix the record number in the btree value. */
+               if (warnings && !use_all) {
+                       match = 0;
+                       for (mlink = mpage->mlinks; mlink;
+                            mlink = mlink->next)
+                               if (mlink_check(mpage, mlink))
+                                       match = 1;
+               } else
+                       match = 1;

 
 

-               if (mdoc)
-                       pmdoc_node(hash, buf, dbuf,
-                               mdoc_node(mdoc), mdoc_meta(mdoc));
-               else if (man)
-                       pman_node(hash, buf, dbuf, man_node(man));
+               if (NULL != mdoc) {
+                       if (NULL != (cp = mdoc_meta(mdoc)->name))
+                               putkey(mpage, cp, TYPE_Nm);
+                       assert(NULL == mpage->desc);
+                       parse_mdoc(mpage, mdoc_node(mdoc));
+                       putkey(mpage, NULL != mpage->desc ?
+                           mpage->desc : mpage->mlinks->name, TYPE_Nd);
+               } else if (NULL != man)
+                       parse_man(mpage, man_node(man));

                else
                else

-                       pformatted(hash, buf, dbuf, of);
-
-               /*
-                * Copy from the in-memory hashtable of pending keywords
-                * into the database.
-                */
-
-               vbuf.rec = htobe32(rec);
-               seq = R_FIRST;
-               while (0 == (ch = (*hash->seq)(hash, &key, &val, seq))) {
-                       seq = R_NEXT;
-                       vbuf.mask = htobe64(*(uint64_t *)val.data);
-                       val.size = sizeof(struct db_val);
-                       val.data = &vbuf;
-                       dbt_put(db, dbf, &key, &val);
-               }
-               if (ch < 0) {
-                       perror("hash");
-                       exit((int)MANDOCLEVEL_SYSERR);
-               }
-               
-               /*
-                * Apply to the index.  If we haven't had a description
-                * set, put an empty one in now.
-                */
-
-               if (dbuf->len == sv)
-                       buf_appendb(dbuf, "", 1);
-
-               key.data = &rec;
-               key.size = sizeof(recno_t);
-
-               val.data = dbuf->cp;
-               val.size = dbuf->len;
+                       parse_cat(mpage);

 
 

-               if (verb)
-                       printf("%s: Added index\n", fn);
-
-               dbt_put(idx, idxf, &key, &val);
+               dbadd(mpage, mc);
+               ohash_delete(&strings);
+               mpage = ohash_next(&mpages, &pslot);

        }
        }

+
+       if (0 == nodb)
+               SQL_EXEC("END TRANSACTION");

 }
 
 }
 

-/*
- * Scan through all entries in the index file `idx' and prune those
- * entries in `ofile'.
- * Pruning consists of removing from `db', then invalidating the entry
- * in `idx' (zeroing its value size).
- */

 static void
 static void

-index_prune(const struct of *ofile, DB *db, const char *dbf, 
-               DB *idx, const char *idxf,
-               recno_t *maxrec, recno_t **recs, size_t *recsz)
+parse_cat(struct mpage *mpage)

 {
 {

-       const struct of *of;
-       const char      *fn, *cp;
-       struct db_val   *vbuf;
-       unsigned         seq, sseq;
-       DBT              key, val;
-       size_t           reccur;
-       int              ch;
-
-       reccur = 0;
-       seq = R_FIRST;
-       while (0 == (ch = (*idx->seq)(idx, &key, &val, seq))) {
-               seq = R_NEXT;
-               *maxrec = *(recno_t *)key.data;
-               cp = val.data;
-
-               /* Deleted records are zero-sized.  Skip them. */
-
-               if (0 == val.size)
-                       goto cont;
-
-               /*
-                * Make sure we're sane.
-                * Read past our mdoc/man/cat type to the next string,
-                * then make sure it's bounded by a NUL.
-                * Failing any of these, we go into our error handler.
-                */
-
-               if (NULL == (fn = memchr(cp, '\0', val.size)))
-                       break;
-               if (++fn - cp >= (int)val.size)
-                       break;
-               if (NULL == memchr(fn, '\0', val.size - (fn - cp)))
-                       break;
+       FILE            *stream;
+       char            *line, *p, *title;
+       size_t           len, plen, titlesz;

 
 

-               /* 
-                * Search for the file in those we care about.
-                * XXX: build this into a tree.  Too slow.
-                */
+       if (NULL == (stream = fopen(mpage->mlinks->file, "r"))) {
+               if (warnings)
+                       say(mpage->mlinks->file, NULL);
+               return;
+       }

 
 

-               for (of = ofile; of; of = of->next)
-                       if (0 == strcmp(fn, of->fname))
-                               break;
+       /* Skip to first blank line. */

 
 

-               if (NULL == of)
-                       continue;
+       while (NULL != (line = fgetln(stream, &len)))
+               if ('\n' == *line)
+                       break;

 
 

-               /*
-                * Search through the keyword database, throwing out all
-                * references to our file.
-                */
+       /*
+        * Assume the first line that is not indented
+        * is the first section header.  Skip to it.
+        */

 
 

-               sseq = R_FIRST;
-               while (0 == (ch = (*db->seq)(db, &key, &val, sseq))) {
-                       sseq = R_NEXT;
-                       if (sizeof(struct db_val) != val.size)
-                               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,
+        * appending a trailing space.
+        * Ignore empty (whitespace-only) lines.
+        */

 
 

-                       vbuf = val.data;
-                       if (*maxrec != betoh32(vbuf->rec))
-                               continue;
+       titlesz = 0;
+       title = NULL;

 
 

-                       if ((ch = (*db->del)(db, &key, R_CURSOR)) < 0)
-                               break;
+       while (NULL != (line = fgetln(stream, &len))) {
+               if (' ' != *line || '\n' != line[len - 1])
+                       break;
+               while (len > 0 && isspace((unsigned char)*line)) {
+                       line++;
+                       len--;

                }
                }

+               if (1 == len)
+                       continue;
+               title = mandoc_realloc(title, titlesz + len);
+               memcpy(title + titlesz, line, len);
+               titlesz += len;
+               title[titlesz - 1] = ' ';
+       }

 
 

-               if (ch < 0) {
-                       perror(dbf);
-                       exit((int)MANDOCLEVEL_SYSERR);
-               } else if (1 != ch) {
-                       fprintf(stderr, "%s: Corrupt database\n", dbf);
-                       exit((int)MANDOCLEVEL_SYSERR);
-               }
+       /*
+        * If no page content can be found, or the input line
+        * is already the next section header, or there is no
+        * trailing newline, reuse the page title as the page
+        * description.
+        */

 
 

-               if (verb)
-                       printf("%s: Deleted index\n", fn);
+       if (NULL == title || '\0' == *title) {
+               if (warnings)
+                       say(mpage->mlinks->file,
+                           "Cannot find NAME section");
+               assert(NULL == mpage->desc);
+               mpage->desc = mandoc_strdup(mpage->mlinks->name);
+               putkey(mpage, mpage->mlinks->name, TYPE_Nd);
+               fclose(stream);
+               free(title);
+               return;
+       }

 
 

-               val.size = 0;
-               ch = (*idx->put)(idx, &key, &val, R_CURSOR);
+       title = mandoc_realloc(title, titlesz + 1);
+       title[titlesz] = '\0';

 
 

-               if (ch < 0)
-                       break;
-cont:
-               if (reccur >= *recsz) {
-                       *recsz += MANDOC_SLOP;
-                       *recs = mandoc_realloc
-                               (*recs, *recsz * sizeof(recno_t));
-               }
+       /*
+        * Skip to the first dash.
+        * Use the remaining line as the description (no more than 70
+        * bytes).
+        */

 
 

-               (*recs)[(int)reccur] = *maxrec;
-               reccur++;
+       if (NULL != (p = strstr(title, "- "))) {
+               for (p += 2; ' ' == *p || '\b' == *p; p++)
+                       /* Skip to next word. */ ;
+       } else {
+               if (warnings)
+                       say(mpage->mlinks->file,
+                           "No dash in title line");
+               p = title;

        }
 
        }
 

-       if (ch < 0) {
-               perror(idxf);
-               exit((int)MANDOCLEVEL_SYSERR);
-       } else if (1 != ch) {
-               fprintf(stderr, "%s: Corrupt index\n", idxf);
-               exit((int)MANDOCLEVEL_SYSERR);
+       plen = strlen(p);
+
+       /* Strip backspace-encoding from line. */
+
+       while (NULL != (line = memchr(p, '\b', plen))) {
+               len = line - p;
+               if (0 == len) {
+                       memmove(line, line + 1, plen--);
+                       continue;
+               } 
+               memmove(line - 1, line + 1, plen - len);
+               plen -= 2;

        }
 
        }
 

-       (*maxrec)++;
+       assert(NULL == mpage->desc);
+       mpage->desc = mandoc_strdup(p);
+       putkey(mpage, mpage->desc, TYPE_Nd);
+       fclose(stream);
+       free(title);

 }
 
 /*
 }
 
 /*

- * Grow the buffer (if necessary) and copy in a binary string.
+ * Put a type/word pair into the word database for this particular file.

  */
 static void
  */
 static void

-buf_appendb(struct buf *buf, const void *cp, size_t sz)
+putkey(const struct mpage *mpage, char *value, uint64_t type)

 {
 {

+       char     *cp;
+
+       assert(NULL != value);
+       if (TYPE_arch == type)
+               for (cp = value; *cp; cp++)
+                       if (isupper((unsigned char)*cp))
+                               *cp = _tolower((unsigned char)*cp);
+       putkeys(mpage, value, strlen(value), type);
+}

 
 

-       /* Overshoot by MANDOC_BUFSZ. */
+/*
+ * Grok all nodes at or below a certain mdoc node into putkey().
+ */
+static void
+putmdockey(const struct mpage *mpage,
+       const struct mdoc_node *n, uint64_t m)
+{

 
 

-       while (buf->len + sz >= buf->size) {
-               buf->size = buf->len + sz + MANDOC_BUFSZ;
-               buf->cp = mandoc_realloc(buf->cp, buf->size);
+       for ( ; NULL != n; n = n->next) {
+               if (NULL != n->child)
+                       putmdockey(mpage, n->child, m);
+               if (MDOC_TEXT == n->type)
+                       putkey(mpage, n->string, m);

        }
        }

-
-       memcpy(buf->cp + (int)buf->len, cp, sz);
-       buf->len += sz;

 }
 
 }
 

-/*
- * Append a nil-terminated string to the buffer.  
- * This can be invoked multiple times.  
- * The buffer string will be nil-terminated.
- * If invoked multiple times, a space is put between strings.
- */

 static void
 static void

-buf_append(struct buf *buf, const char *cp)
+parse_man(struct mpage *mpage, const struct man_node *n)

 {
 {

-       size_t           sz;
+       const struct man_node *head, *body;
+       char            *start, *sv, *title;
+       char             byte;
+       size_t           sz, titlesz;

 
 

-       if (0 == (sz = strlen(cp)))
+       if (NULL == n)

                return;
 
                return;
 

-       if (buf->len)
-               buf->cp[(int)buf->len - 1] = ' ';
+       /*
+        * We're only searching for one thing: the first text child in
+        * the BODY of a NAME section.  Since we don't keep track of
+        * sections in -man, run some hoops to find out whether we're in
+        * the correct section or not.
+        */

 
 

-       buf_appendb(buf, cp, sz + 1);
-}
+       if (MAN_BODY == n->type && MAN_SH == n->tok) {
+               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) {

 
 

-/*
- * Recursively add all text from a given node.  
- * This is optimised for general mdoc nodes in this context, which do
- * not consist of subexpressions and having a recursive call for n->next
- * would be wasteful.
- * The "f" variable should be 0 unless called from pmdoc_Nd for the
- * description buffer, which does not start at the beginning of the
- * buffer.
- */
-static void
-buf_appendmdoc(struct buf *buf, const struct mdoc_node *n, int f)
-{
+                       title = NULL;
+                       titlesz = 0;

 
 

-       for ( ; n; n = n->next) {
-               if (n->child)
-                       buf_appendmdoc(buf, n->child, f);
+                       /*
+                        * Suck the entire NAME section into memory.
+                        * Yes, we might run away.
+                        * But too many manuals have big, spread-out
+                        * NAME sections over many lines.
+                        */

 
 

-               if (MDOC_TEXT == n->type && f) {
-                       f = 0;
-                       buf_appendb(buf, n->string, 
-                                       strlen(n->string) + 1);
-               } else if (MDOC_TEXT == n->type)
-                       buf_append(buf, n->string);
+                       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] = ' ';
+                       }
+                       if (NULL == title)
+                               return;

 
 

-       }
-}
+                       title = mandoc_realloc(title, titlesz + 1);
+                       title[titlesz] = '\0';

 
 

-/* ARGSUSED */
-static void
-pmdoc_An(MDOC_ARGS)
-{
-       
-       if (SEC_AUTHORS != n->sec)
-               return;
+                       /* Skip leading space.  */
+
+                       sv = title;
+                       while (isspace((unsigned char)*sv))
+                               sv++;
+
+                       if (0 == (sz = strlen(sv))) {
+                               free(title);
+                               return;
+                       }

 
 

-       buf_appendmdoc(buf, n->child, 0);
-       hash_put(hash, buf, TYPE_An);
+                       /* 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
+                        * dash, then a description.  Try to puzzle out
+                        * the name parts here.
+                        */
+
+                       for ( ;; ) {
+                               sz = strcspn(start, " ,");
+                               if ('\0' == start[sz])
+                                       break;
+
+                               byte = start[sz];
+                               start[sz] = '\0';
+
+                               /*
+                                * Assume a stray trailing comma in the
+                                * name list if a name begins with a dash.
+                                */
+
+                               if ('-' == start[0] ||
+                                   ('\\' == start[0] && '-' == start[1]))
+                                       break;
+
+                               putkey(mpage, start, TYPE_Nm);
+
+                               if (' ' == byte) {
+                                       start += sz + 1;
+                                       break;
+                               }
+
+                               assert(',' == byte);
+                               start += sz + 1;
+                               while (' ' == *start)
+                                       start++;
+                       }
+
+                       if (sv == start) {
+                               putkey(mpage, start, TYPE_Nm);
+                               free(title);
+                               return;
+                       }
+
+                       while (isspace((unsigned char)*start))
+                               start++;
+
+                       if (0 == strncmp(start, "-", 1))
+                               start += 1;
+                       else if (0 == strncmp(start, "\\-\\-", 4))
+                               start += 4;
+                       else if (0 == strncmp(start, "\\-", 2))
+                               start += 2;
+                       else if (0 == strncmp(start, "\\(en", 4))
+                               start += 4;
+                       else if (0 == strncmp(start, "\\(em", 4))
+                               start += 4;
+
+                       while (' ' == *start)
+                               start++;
+
+                       assert(NULL == mpage->desc);
+                       mpage->desc = mandoc_strdup(start);
+                       putkey(mpage, mpage->desc, TYPE_Nd);
+                       free(title);
+                       return;
+               }
+       }
+
+       for (n = n->child; n; n = n->next) {
+               if (NULL != mpage->desc)
+                       break;
+               parse_man(mpage, n);
+       }

 }
 
 static void
 }
 
 static void

-hash_reset(DB **db)
+parse_mdoc(struct mpage *mpage, const struct mdoc_node *n)

 {
 {

-       DB              *hash;
-
-       if (NULL != (hash = *db))
-               (*hash->close)(hash);

 
 

-       *db = dbopen(NULL, O_CREAT|O_RDWR, 0644, DB_HASH, NULL);
-       if (NULL == *db) {
-               perror("hash");
-               exit((int)MANDOCLEVEL_SYSERR);
+       assert(NULL != n);
+       for (n = n->child; NULL != n; n = n->next) {
+               switch (n->type) {
+               case (MDOC_ELEM):
+                       /* FALLTHROUGH */
+               case (MDOC_BLOCK):
+                       /* FALLTHROUGH */
+               case (MDOC_HEAD):
+                       /* FALLTHROUGH */
+               case (MDOC_BODY):
+                       /* FALLTHROUGH */
+               case (MDOC_TAIL):
+                       if (NULL != mdocs[n->tok].fp)
+                              if (0 == (*mdocs[n->tok].fp)(mpage, n))
+                                      break;
+                       if (mdocs[n->tok].mask)
+                               putmdockey(mpage, n->child,
+                                   mdocs[n->tok].mask);
+                       break;
+               default:
+                       assert(MDOC_ROOT != n->type);
+                       continue;
+               }
+               if (NULL != n->child)
+                       parse_mdoc(mpage, n);

        }
 }
 
        }
 }
 

-/* ARGSUSED */
-static void
-pmdoc_Fd(MDOC_ARGS)
+static int
+parse_mdoc_Fd(struct mpage *mpage, const struct mdoc_node *n)

 {
        const char      *start, *end;
        size_t           sz;
 {
        const char      *start, *end;
        size_t           sz;

-       
-       if (SEC_SYNOPSIS != n->sec)
-               return;
-       if (NULL == (n = n->child) || MDOC_TEXT != n->type)
-               return;
+
+       if (SEC_SYNOPSIS != n->sec ||
+                       NULL == (n = n->child) || 
+                       MDOC_TEXT != n->type)
+               return(0);

 
        /*
         * Only consider those `Fd' macro fields that begin with an
         * "inclusion" token (versus, e.g., #define).
         */
 
        /*
         * Only consider those `Fd' macro fields that begin with an
         * "inclusion" token (versus, e.g., #define).
         */

+

        if (strcmp("#include", n->string))
        if (strcmp("#include", n->string))

-               return;
+               return(0);

 
        if (NULL == (n = n->next) || MDOC_TEXT != n->type)
 
        if (NULL == (n = n->next) || MDOC_TEXT != n->type)

-               return;
+               return(0);

 
        /*
         * Strip away the enclosing angle brackets and make sure we're
 
        /*
         * Strip away the enclosing angle brackets and make sure we're


@@ -903,776 +1436,737 @@ pmdoc_Fd(MDOC_ARGS)
                start++;
 
        if (0 == (sz = strlen(start)))
                start++;
 
        if (0 == (sz = strlen(start)))

-               return;
+               return(0);

 
        end = &start[(int)sz - 1];
        if ('>' == *end || '"' == *end)
                end--;
 
 
        end = &start[(int)sz - 1];
        if ('>' == *end || '"' == *end)
                end--;
 

-       assert(end >= start);
-
-       buf_appendb(buf, start, (size_t)(end - start + 1));
-       buf_appendb(buf, "", 1);
-
-       hash_put(hash, buf, TYPE_In);
-}
-
-/* ARGSUSED */
-static void
-pmdoc_Cd(MDOC_ARGS)
-{
-       
-       if (SEC_SYNOPSIS != n->sec)
-               return;
-
-       buf_appendmdoc(buf, n->child, 0);
-       hash_put(hash, buf, TYPE_Cd);
-}
-
-/* ARGSUSED */
-static void
-pmdoc_In(MDOC_ARGS)
-{
-       
-       if (SEC_SYNOPSIS != n->sec)
-               return;
-       if (NULL == n->child || MDOC_TEXT != n->child->type)
-               return;
-
-       buf_append(buf, n->child->string);
-       hash_put(hash, buf, TYPE_In);
+       if (end > start)
+               putkeys(mpage, start, end - start + 1, TYPE_In);
+       return(0);

 }
 
 }
 

-/* ARGSUSED */
-static void
-pmdoc_Fn(MDOC_ARGS)
+static int
+parse_mdoc_Fn(struct mpage *mpage, const struct mdoc_node *n)

 {
 {

-       const char      *cp;
-       
-       if (SEC_SYNOPSIS != n->sec)
-               return;
-       if (NULL == n->child || MDOC_TEXT != n->child->type)
-               return;
+       char    *cp;

 
 

-       /* .Fn "struct type *arg" "foo" */
+       if (NULL == (n = n->child) || MDOC_TEXT != n->type)
+               return(0);

 
 

-       cp = strrchr(n->child->string, ' ');
-       if (NULL == cp)
-               cp = n->child->string;
+       /* 
+        * Parse: .Fn "struct type *name" "char *arg".
+        * First strip away pointer symbol. 
+        * Then store the function name, then type.
+        * Finally, store the arguments. 
+        */

 
 

-       /* Strip away pointer symbol. */
+       if (NULL == (cp = strrchr(n->string, ' ')))
+               cp = n->string;

 
        while ('*' == *cp)
                cp++;
 
 
        while ('*' == *cp)
                cp++;
 

-       buf_append(buf, cp);
-       hash_put(hash, buf, TYPE_Fn);
-}
+       putkey(mpage, cp, TYPE_Fn);

 
 

-/* ARGSUSED */
-static void
-pmdoc_St(MDOC_ARGS)
-{
-       
-       if (SEC_STANDARDS != n->sec)
-               return;
-       if (NULL == n->child || MDOC_TEXT != n->child->type)
-               return;
+       if (n->string < cp)
+               putkeys(mpage, n->string, cp - n->string, TYPE_Ft);
+
+       for (n = n->next; NULL != n; n = n->next)
+               if (MDOC_TEXT == n->type)
+                       putkey(mpage, n->string, TYPE_Fa);

 
 

-       buf_append(buf, n->child->string);
-       hash_put(hash, buf, TYPE_St);
+       return(0);

 }
 
 }
 

-/* ARGSUSED */
-static void
-pmdoc_Xr(MDOC_ARGS)
+static int
+parse_mdoc_Xr(struct mpage *mpage, const struct mdoc_node *n)

 {
 {

+       char    *cp;

 
        if (NULL == (n = n->child))
 
        if (NULL == (n = n->child))

-               return;
-
-       buf_appendb(buf, n->string, strlen(n->string));
+               return(0);

 
 

-       if (NULL != (n = n->next)) {
-               buf_appendb(buf, ".", 1);
-               buf_appendb(buf, n->string, strlen(n->string) + 1);
-       } else
-               buf_appendb(buf, ".", 2);
+       if (NULL == n->next) {
+               putkey(mpage, n->string, TYPE_Xr);
+               return(0);
+       }

 
 

-       hash_put(hash, buf, TYPE_Xr);
+       if (-1 == asprintf(&cp, "%s(%s)", n->string, n->next->string)) {
+               perror(NULL);
+               exit((int)MANDOCLEVEL_SYSERR);
+       }
+       putkey(mpage, cp, TYPE_Xr);
+       free(cp);
+       return(0);

 }
 
 }
 

-/* ARGSUSED */
-static void
-pmdoc_Vt(MDOC_ARGS)
+static int
+parse_mdoc_Nd(struct mpage *mpage, const struct mdoc_node *n)

 {
 {

-       const char      *start;

        size_t           sz;
        size_t           sz;

-       
-       if (SEC_SYNOPSIS != n->sec)
-               return;
-       if (MDOC_Vt == n->tok && MDOC_BODY != n->type)
-               return;
-       if (NULL == n->last || MDOC_TEXT != n->last->type)
-               return;
+
+       if (MDOC_BODY != n->type)
+               return(0);

 
        /*
 
        /*

-        * Strip away leading pointer symbol '*' and trailing ';'.
+        * Special-case the `Nd' because we need to put the description
+        * into the document table.

         */
 
         */
 

-       start = n->last->string;
-
-       while ('*' == *start)
-               start++;
-
-       if (0 == (sz = strlen(start)))
-               return;
-
-       if (';' == start[(int)sz - 1])
-               sz--;
-
-       if (0 == sz)
-               return;
-
-       buf_appendb(buf, start, sz);
-       buf_appendb(buf, "", 1);
-       hash_put(hash, buf, TYPE_Va);
+       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);

 }
 
 }
 

-/* ARGSUSED */
-static void
-pmdoc_Fo(MDOC_ARGS)
+static int
+parse_mdoc_Nm(struct mpage *mpage, const struct mdoc_node *n)

 {
 {

-       
-       if (SEC_SYNOPSIS != n->sec || MDOC_HEAD != n->type)
-               return;
-       if (NULL == n->child || MDOC_TEXT != n->child->type)
-               return;

 
 

-       buf_append(buf, n->child->string);
-       hash_put(hash, buf, TYPE_Fn);
+       return(SEC_NAME == n->sec ||
+           (SEC_SYNOPSIS == n->sec && MDOC_HEAD == n->type));

 }
 
 }
 

-
-/* ARGSUSED */
-static void
-pmdoc_Nd(MDOC_ARGS)
+static int
+parse_mdoc_Sh(struct mpage *mpage, const struct mdoc_node *n)

 {
 
 {
 

-       if (MDOC_BODY != n->type)
-               return;
-
-       buf_appendmdoc(dbuf, n->child, 1);
-       buf_appendmdoc(buf, n->child, 0);
-
-       hash_put(hash, buf, TYPE_Nd);
+       return(SEC_CUSTOM == n->sec && MDOC_HEAD == n->type);

 }
 
 }
 

-/* ARGSUSED */
-static void
-pmdoc_Er(MDOC_ARGS)
+static int
+parse_mdoc_head(struct mpage *mpage, const struct mdoc_node *n)

 {
 
 {
 

-       if (SEC_ERRORS != n->sec)
-               return;
-       
-       buf_appendmdoc(buf, n->child, 0);
-       hash_put(hash, buf, TYPE_Er);
+       return(MDOC_HEAD == n->type);

 }
 
 }
 

-/* ARGSUSED */
-static void
-pmdoc_Ev(MDOC_ARGS)
+static int
+parse_mdoc_body(struct mpage *mpage, const struct mdoc_node *n)

 {
 
 {
 

-       if (SEC_ENVIRONMENT != n->sec)
-               return;
-       
-       buf_appendmdoc(buf, n->child, 0);
-       hash_put(hash, buf, TYPE_Ev);
+       return(MDOC_BODY == n->type);

 }
 
 }
 

-/* ARGSUSED */
+/*
+ * Add a string to the hash table for the current manual.
+ * Each string has a bitmask telling which macros it belongs to.
+ * When we finish the manual, we'll dump the table.
+ */

 static void
 static void

-pmdoc_Pa(MDOC_ARGS)
+putkeys(const struct mpage *mpage,
+       const char *cp, size_t sz, uint64_t v)

 {
 {

+       struct str      *s;
+       const char      *end;
+       uint64_t         mask;
+       unsigned int     slot;
+       int              i;

 
 

-       if (SEC_FILES != n->sec)
-               return;
-       
-       buf_appendmdoc(buf, n->child, 0);
-       hash_put(hash, buf, TYPE_Pa);
-}
-
-/* ARGSUSED */
-static void
-pmdoc_Nm(MDOC_ARGS)
-{
-       
-       if (SEC_NAME == n->sec) {
-               buf_appendmdoc(buf, n->child, 0);
-               hash_put(hash, buf, TYPE_Nm);
-               return;
-       } else if (SEC_SYNOPSIS != n->sec || MDOC_HEAD != n->type)
+       if (0 == sz)

                return;
 
                return;
 

-       if (NULL == n->child)
-               buf_append(buf, m->name);
+       if (verb > 1) {
+               for (i = 0, mask = 1;
+                    i < mansearch_keymax;
+                    i++, mask <<= 1)
+                       if (mask & v)
+                               break;
+               say(mpage->mlinks->file, "Adding key %s=%*s",
+                   mansearch_keynames[i], sz, cp);
+       }

 
 

-       buf_appendmdoc(buf, n->child, 0);
-       hash_put(hash, buf, TYPE_Nm);
-}
+       end = cp + sz;
+       slot = ohash_qlookupi(&strings, cp, &end);
+       s = ohash_find(&strings, slot);

 
 

-static void
-hash_put(DB *db, const struct buf *buf, uint64_t mask)
-{
-       DBT              key, val;
-       int              rc;
-
-       if (buf->len < 2)
+       if (NULL != s && mpage == s->mpage) {
+               s->mask |= v;

                return;
                return;

-
-       key.data = buf->cp;
-       key.size = buf->len;
-
-       if ((rc = (*db->get)(db, &key, &val, 0)) < 0) {
-               perror("hash");
-               exit((int)MANDOCLEVEL_SYSERR);
-       } else if (0 == rc)
-               mask |= *(uint64_t *)val.data;
-
-       val.data = &mask;
-       val.size = sizeof(uint64_t); 
-
-       if ((rc = (*db->put)(db, &key, &val, 0)) < 0) {
-               perror("hash");
-               exit((int)MANDOCLEVEL_SYSERR);
-       } 
+       } else if (NULL == s) {
+               s = mandoc_calloc(sizeof(struct str) + sz + 1, 1);
+               memcpy(s->key, cp, sz);
+               ohash_insert(&strings, slot, s);
+       }
+       s->mpage = mpage;
+       s->mask = v;

 }
 
 }
 

-static void
-dbt_put(DB *db, const char *dbn, DBT *key, DBT *val)
+/*
+ * Take a Unicode codepoint and produce its UTF-8 encoding.
+ * This isn't the best way to do this, but it works.
+ * The magic numbers are from the UTF-8 packaging.
+ * They're not as scary as they seem: read the UTF-8 spec for details.
+ */
+static size_t
+utf8(unsigned int cp, char out[7])

 {
 {

+       size_t           rc;
+
+       rc = 0;
+       if (cp <= 0x0000007F) {
+               rc = 1;
+               out[0] = (char)cp;
+       } else if (cp <= 0x000007FF) {
+               rc = 2;
+               out[0] = (cp >> 6  & 31) | 192;
+               out[1] = (cp       & 63) | 128;
+       } else if (cp <= 0x0000FFFF) {
+               rc = 3;
+               out[0] = (cp >> 12 & 15) | 224;
+               out[1] = (cp >> 6  & 63) | 128;
+               out[2] = (cp       & 63) | 128;
+       } else if (cp <= 0x001FFFFF) {
+               rc = 4;
+               out[0] = (cp >> 18 &  7) | 240;
+               out[1] = (cp >> 12 & 63) | 128;
+               out[2] = (cp >> 6  & 63) | 128;
+               out[3] = (cp       & 63) | 128;
+       } else if (cp <= 0x03FFFFFF) {
+               rc = 5;
+               out[0] = (cp >> 24 &  3) | 248;
+               out[1] = (cp >> 18 & 63) | 128;
+               out[2] = (cp >> 12 & 63) | 128;
+               out[3] = (cp >> 6  & 63) | 128;
+               out[4] = (cp       & 63) | 128;
+       } else if (cp <= 0x7FFFFFFF) {
+               rc = 6;
+               out[0] = (cp >> 30 &  1) | 252;
+               out[1] = (cp >> 24 & 63) | 128;
+               out[2] = (cp >> 18 & 63) | 128;
+               out[3] = (cp >> 12 & 63) | 128;
+               out[4] = (cp >> 6  & 63) | 128;
+               out[5] = (cp       & 63) | 128;
+       } else
+               return(0);

 
 

-       assert(key->size);
-       assert(val->size);
-
-       if (0 == (*db->put)(db, key, val, 0))
-               return;
-       
-       perror(dbn);
-       exit((int)MANDOCLEVEL_SYSERR);
-       /* NOTREACHED */
+       out[rc] = '\0';
+       return(rc);

 }
 
 /*
 }
 
 /*

- * Call out to per-macro handlers after clearing the persistent database
- * key.  If the macro sets the database key, flush it to the database.
+ * Store the rendered version of a key, or alias the pointer
+ * if the key contains no escape sequences.

  */
 static void
  */
 static void

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

 {
 {

+       size_t           sz, bsz, pos;
+       char             utfbuf[7], res[6];
+       char            *buf;
+       const char      *seq, *cpp, *val;
+       int              len, u;
+       enum mandoc_esc  esc;

 
 

-       if (NULL == n)
-               return;
-
-       switch (n->type) {
-       case (MDOC_HEAD):
-               /* FALLTHROUGH */
-       case (MDOC_BODY):
-               /* FALLTHROUGH */
-       case (MDOC_TAIL):
-               /* FALLTHROUGH */
-       case (MDOC_BLOCK):
-               /* FALLTHROUGH */
-       case (MDOC_ELEM):
-               if (NULL == mdocs[n->tok])
-                       break;
-
-               buf->len = 0;
-               (*mdocs[n->tok])(hash, buf, dbuf, n, m);
-               break;
-       default:
-               break;
-       }
-
-       pmdoc_node(hash, buf, dbuf, n->child, m);
-       pmdoc_node(hash, buf, dbuf, n->next, m);
-}
+       assert(NULL == key->rendered);

 
 

-static int
-pman_node(MAN_ARGS)
-{
-       const struct man_node *head, *body;
-       const char      *start, *sv;
-       size_t           sz;
+       res[0] = '\\';
+       res[1] = '\t';
+       res[2] = ASCII_NBRSP;
+       res[3] = ASCII_HYPH;
+       res[4] = ASCII_BREAK;
+       res[5] = '\0';

 
 

-       if (NULL == n)
-               return(0);
+       val = key->key;
+       bsz = strlen(val);

 
        /*
 
        /*

-        * We're only searching for one thing: the first text child in
-        * the BODY of a NAME section.  Since we don't keep track of
-        * sections in -man, run some hoops to find out whether we're in
-        * the correct section or not.
+        * Pre-check: if we have no stop-characters, then set the
+        * pointer as ourselvse and get out of here.

         */
         */

+       if (strcspn(val, res) == bsz) {
+               key->rendered = key->key;
+               return;
+       } 

 
 

-       if (MAN_BODY == n->type && MAN_SH == n->tok) {
-               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) {
+       /* Pre-allocate by the length of the input */

 
 

-                       assert(body->string);
-                       start = sv = body->string;
+       buf = mandoc_malloc(++bsz);
+       pos = 0;

 
 

-                       /* 
-                        * Go through a special heuristic dance here.
-                        * This is why -man manuals are great!
-                        * (I'm being sarcastic: my eyes are bleeding.)
-                        * Conventionally, one or more manual names are
-                        * comma-specified prior to a whitespace, then a
-                        * dash, then a description.  Try to puzzle out
-                        * the name parts here.
-                        */
+       while ('\0' != *val) {
+               /*
+                * Halt on the first escape sequence.
+                * This also halts on the end of string, in which case
+                * we just copy, fallthrough, and exit the loop.
+                */
+               if ((sz = strcspn(val, res)) > 0) {
+                       memcpy(&buf[pos], val, sz);
+                       pos += sz;
+                       val += sz;
+               }

 
 

-                       for ( ;; ) {
-                               sz = strcspn(start, " ,");
-                               if ('\0' == start[(int)sz])
-                                       break;
+               switch (*val) {
+               case (ASCII_HYPH):
+                       buf[pos++] = '-';
+                       val++;
+                       continue;
+               case ('\t'):
+                       /* FALLTHROUGH */
+               case (ASCII_NBRSP):
+                       buf[pos++] = ' ';
+                       val++;
+                       /* FALLTHROUGH */
+               case (ASCII_BREAK):
+                       continue;
+               default:
+                       break;
+               }
+               if ('\\' != *val)
+                       break;

 
 

-                               buf->len = 0;
-                               buf_appendb(buf, start, sz);
-                               buf_appendb(buf, "", 1);
+               /* Read past the slash. */

 
 

-                               hash_put(hash, buf, TYPE_Nm);
+               val++;

 
 

-                               if (' ' == start[(int)sz]) {
-                                       start += (int)sz + 1;
-                                       break;
-                               }
+               /*
+                * Parse the escape sequence and see if it's a
+                * predefined character or special character.
+                */

 
 

-                               assert(',' == start[(int)sz]);
-                               start += (int)sz + 1;
-                               while (' ' == *start)
-                                       start++;
-                       }
+               esc = mandoc_escape
+                       ((const char **)&val, &seq, &len);
+               if (ESCAPE_ERROR == esc)
+                       break;
+               if (ESCAPE_SPECIAL != esc)
+                       continue;

 
 

-                       buf->len = 0;
+               /*
+                * Render the special character
+                * as either UTF-8 or ASCII.
+                */

 
 

-                       if (sv == start) {
-                               buf_append(buf, start);
-                               return(1);
+               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;

                        }
                        }

+               }

 
 

-                       while (' ' == *start)
-                               start++;
-
-                       if (0 == strncmp(start, "-", 1))
-                               start += 1;
-                       else if (0 == strncmp(start, "\\-", 2))
-                               start += 2;
-                       else if (0 == strncmp(start, "\\(en", 4))
-                               start += 4;
-                       else if (0 == strncmp(start, "\\(em", 4))
-                               start += 4;
-
-                       while (' ' == *start)
-                               start++;
-
-                       sz = strlen(start) + 1;
-                       buf_appendb(dbuf, start, sz);
-                       buf_appendb(buf, start, sz);
+               /* Copy the rendered glyph into the stream. */

 
 

-                       hash_put(hash, buf, TYPE_Nd);
-               }
+               bsz += sz;
+               buf = mandoc_realloc(buf, bsz);
+               memcpy(&buf[pos], cpp, sz);
+               pos += sz;

        }
 
        }
 

-       for (n = n->child; n; n = n->next)
-               if (pman_node(hash, buf, dbuf, n))
-                       return(1);
-
-       return(0);
+       buf[pos] = '\0';
+       key->rendered = buf;

 }
 
 /*
 }
 
 /*

- * Parse a formatted manual page.
- * By necessity, this involves rather crude guesswork.
+ * 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, handle escape sequences at the last possible moment.

  */
 static void
  */
 static void

-pformatted(DB *hash, struct buf *buf, struct buf *dbuf,
-                const struct of *of)
+dbadd(const struct mpage *mpage, struct mchars *mc)

 {
 {

-       FILE            *stream;
-       char            *line, *p;
-       size_t           len, plen;
+       struct mlink    *mlink;
+       struct str      *key;
+       int64_t          recno;
+       size_t           i;
+       unsigned int     slot;

 
 

-       if (NULL == (stream = fopen(of->fname, "r"))) {
-               perror(of->fname);
-               return;
-       }
+       if (verb)
+               say(mpage->mlinks->file, "Adding to database");

 
 

-       /*
-        * Always use the title derived from the filename up front,
-        * do not even try to find it in the file.  This also makes
-        * sure we don't end up with an orphan index record, even if
-        * the file content turns out to be completely unintelligible.
-        */
-
-       buf->len = 0;
-       buf_append(buf, of->title);
-       hash_put(hash, buf, TYPE_Nm);
-
-       while (NULL != (line = fgetln(stream, &len)) && '\n' != *line)
-               /* Skip to first blank line. */ ;
-
-       while (NULL != (line = fgetln(stream, &len)) &&
-                       ('\n' == *line || ' ' == *line))
-               /* Skip to first section header. */ ;
+       if (nodb)
+               return;

 
 

-       /*
-        * If no page content can be found,
-        * reuse the page title as the page description.
-        */
+       i = 1;
+       SQL_BIND_INT(stmts[STMT_INSERT_PAGE], i, FORM_SRC == mpage->form);
+       SQL_STEP(stmts[STMT_INSERT_PAGE]);
+       recno = sqlite3_last_insert_rowid(db);
+       sqlite3_reset(stmts[STMT_INSERT_PAGE]);
+
+       for (mlink = mpage->mlinks; mlink; mlink = mlink->next) {
+               i = 1;
+               SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->dsec);
+               SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->arch);
+               SQL_BIND_TEXT(stmts[STMT_INSERT_LINK], i, mlink->name);
+               SQL_BIND_INT64(stmts[STMT_INSERT_LINK], i, recno);
+               SQL_STEP(stmts[STMT_INSERT_LINK]);
+               sqlite3_reset(stmts[STMT_INSERT_LINK]);
+       }

 
 

-       if (NULL == (line = fgetln(stream, &len))) {
-               buf_appendb(dbuf, buf->cp, buf->size);
-               hash_put(hash, buf, TYPE_Nd);
-               fclose(stream);
-               return;
+       for (key = ohash_first(&strings, &slot); NULL != key;
+            key = ohash_next(&strings, &slot)) {
+               assert(key->mpage == mpage);
+               if (NULL == key->rendered)
+                       render_key(mc, key);
+               i = 1;
+               SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, key->mask);
+               SQL_BIND_TEXT(stmts[STMT_INSERT_KEY], i, key->rendered);
+               SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, recno);
+               SQL_STEP(stmts[STMT_INSERT_KEY]);
+               sqlite3_reset(stmts[STMT_INSERT_KEY]);
+               if (key->rendered != key->key)
+                       free(key->rendered);
+               free(key);

        }
        }

-       fclose(stream);
+}

 
 

-       /*
-        * If there is a dash, skip to the text following it.
-        */
+static void
+dbprune(void)
+{
+       struct mpage    *mpage;
+       struct mlink    *mlink;
+       size_t           i;
+       unsigned int     slot;

 
 

-       for (p = line, plen = len; plen; p++, plen--)
-               if ('-' == *p)
-                       break;
-       for ( ; plen; p++, plen--)
-               if ('-' != *p && ' ' != *p && 8 != *p)
-                       break;
-       if (0 == plen) {
-               p = line;
-               plen = len;
-       }
+       if (0 == nodb)
+               SQL_EXEC("BEGIN TRANSACTION");

 
 

-       /*
-        * Copy the rest of the line, but no more than 70 bytes.
-        */
+       for (mpage = ohash_first(&mpages, &slot); NULL != mpage;
+            mpage = ohash_next(&mpages, &slot)) {
+               mlink = mpage->mlinks;
+               if (verb)
+                       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 (70 < plen)
-               plen = 70;
-       p[plen-1] = '\0';
-       buf_appendb(dbuf, p, plen);
-       buf->len = 0;
-       buf_appendb(buf, p, plen);
-       hash_put(hash, buf, TYPE_Nd);
+       if (0 == nodb)
+               SQL_EXEC("END TRANSACTION");

 }
 
 }
 

+/*
+ * Close an existing database and its prepared statements.
+ * If "real" is not set, rename the temporary file into the real one.
+ */

 static void
 static void

-ofile_argbuild(int argc, char *argv[], struct of **of)
+dbclose(int real)

 {
 {

-       char             buf[MAXPATHLEN];
-       char            *sec, *arch, *title, *p;
-       int              i, src_form;
-       struct of       *nof;
+       size_t           i;
+       int              status;
+       pid_t            child;

 
 

-       for (i = 0; i < argc; i++) {
+       if (nodb)
+               return;

 
 

-               /*
-                * Try to infer the manual section, architecture and
-                * page title from the path, assuming it looks like
-                *   man*[/<arch>]/<title>.<section>   or
-                *   cat<section>[/<arch>]/<title>.0
-                */
+       for (i = 0; i < STMT__MAX; i++) {
+               sqlite3_finalize(stmts[i]);
+               stmts[i] = NULL;
+       }

 
 

-               if (strlcpy(buf, argv[i], sizeof(buf)) >= sizeof(buf)) {
-                       fprintf(stderr, "%s: Path too long\n", argv[i]);
-                       continue;
-               }
-               sec = arch = title = NULL;
-               src_form = 0;
-               p = strrchr(buf, '\0');
-               while (p-- > buf) {
-                       if (NULL == sec && '.' == *p) {
-                               sec = p + 1;
-                               *p = '\0';
-                               if ('0' == *sec)
-                                       src_form |= MANDOC_FORM;
-                               else if ('1' <= *sec && '9' >= *sec)
-                                       src_form |= MANDOC_SRC;
-                               continue;
-                       }
-                       if ('/' != *p)
-                               continue;
-                       if (NULL == title) {
-                               title = p + 1;
-                               *p = '\0';
-                               continue;
-                       }
-                       if (0 == strncmp("man", p + 1, 3))
-                               src_form |= MANDOC_SRC;
-                       else if (0 == strncmp("cat", p + 1, 3))
-                               src_form |= MANDOC_FORM;
-                       else
-                               arch = p + 1;
-                       break;
-               }
-               if (NULL == title)
-                       title = buf;
+       sqlite3_close(db);
+       db = NULL;

 
 

-               /*
-                * Build the file structure.
-                */
+       if (real)
+               return;

 
 

-               nof = mandoc_calloc(1, sizeof(struct of));
-               nof->fname = mandoc_strdup(argv[i]);
-               if (NULL != sec)
-                       nof->sec = mandoc_strdup(sec);
-               if (NULL != arch)
-                       nof->arch = mandoc_strdup(arch);
-               nof->title = mandoc_strdup(title);
-               nof->src_form = src_form;
+       if ('\0' == *tempfilename) {
+               if (-1 == rename(MANDOC_DB "~", MANDOC_DB)) {
+                       exitcode = (int)MANDOCLEVEL_SYSERR;
+                       say(MANDOC_DB, "%s", strerror(errno));
+               }
+               return;
+       }

 
 

-               /*
-                * Add the structure to the list.
-                */
+       switch (child = fork()) {
+       case (-1):
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("fork cmp", "%s", strerror(errno));
+               return;
+       case (0):
+               execlp("cmp", "cmp", "-s",
+                   tempfilename, MANDOC_DB, NULL);
+               say("exec cmp", "%s", strerror(errno));
+               exit(0);
+       default:
+               break;
+       }
+       if (-1 == waitpid(child, &status, 0)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("wait cmp", "%s", strerror(errno));
+       } else if (WIFSIGNALED(status)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("cmp", "Died from a signal");
+       } else if (WEXITSTATUS(status)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(MANDOC_DB,
+                   "Data changed, but cannot replace database");
+       }

 
 

-               if (verb > 2) 
-                       printf("%s: Scheduling\n", argv[i]);
-               if (NULL == *of) {
-                       *of = nof;
-                       (*of)->first = nof;
-               } else {
-                       nof->first = (*of)->first;
-                       (*of)->next = nof;
-                       *of = nof;
-               }
+       *strrchr(tempfilename, '/') = '\0';
+       switch (child = fork()) {
+       case (-1):
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("fork rm", "%s", strerror(errno));
+               return;
+       case (0):
+               execlp("rm", "rm", "-rf", tempfilename, NULL);
+               say("exec rm", "%s", strerror(errno));
+               exit((int)MANDOCLEVEL_SYSERR);
+       default:
+               break;
+       }
+       if (-1 == waitpid(child, &status, 0)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("wait rm", "%s", strerror(errno));
+       } else if (WIFSIGNALED(status) || WEXITSTATUS(status)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(tempfilename,
+                   "Cannot remove temporary directory");

        }
 }
 
 /*
        }
 }
 
 /*

- * Recursively build up a list of files to parse.
- * We use this instead of ftw() and so on because I don't want global
- * variables hanging around.
- * This ignores the mandoc.db and mandoc.index files, but assumes that
- * everything else is a manual.
- * Pass in a pointer to a NULL structure for the first invocation.
+ * This is straightforward stuff.
+ * Open a database connection to a "temporary" database, then open a set
+ * of prepared statements we'll use over and over again.
+ * If "real" is set, we use the existing database; if not, we truncate a
+ * temporary one.
+ * Must be matched by dbclose().

  */
 static int
  */
 static int

-ofile_dirbuild(const char *dir, const char* psec, const char *parch,
-               int p_src_form, struct of **of)
+dbopen(int real)

 {
 {

-       char             buf[MAXPATHLEN];
-       struct stat      sb;
-       size_t           sz;
-       DIR             *d;
-       const char      *fn, *sec, *arch;
-       char            *p, *q, *suffix;
-       struct of       *nof;
-       struct dirent   *dp;
-       int              src_form;
-
-       if (NULL == (d = opendir(dir))) {
-               perror(dir);
-               return(0);
-       }
-
-       while (NULL != (dp = readdir(d))) {
-               fn = dp->d_name;
+       const char      *sql;
+       int              rc, ofl;

 
 

-               if ('.' == *fn)
-                       continue;
+       if (nodb) 
+               return(1);

 
 

-               src_form = p_src_form;
+       *tempfilename = '\0';
+       ofl = SQLITE_OPEN_READWRITE;

 
 

-               if (DT_DIR == dp->d_type) {
-                       sec = psec;
-                       arch = parch;
+       if (real) {
+               rc = sqlite3_open_v2(MANDOC_DB, &db, ofl, NULL);
+               if (SQLITE_OK != rc) {
+                       exitcode = (int)MANDOCLEVEL_SYSERR;
+                       say(MANDOC_DB, "%s", sqlite3_errmsg(db));
+                       return(0);
+               }
+               goto prepare_statements;
+       }

 
 

-                       /*
-                        * By default, only use directories called:
-                        *   man<section>/[<arch>/]   or
-                        *   cat<section>/[<arch>/]
-                        */
+       ofl |= SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE;

 
 

-                       if (NULL == sec) {
-                               if(0 == strncmp("man", fn, 3)) {
-                                       src_form |= MANDOC_SRC;
-                                       sec = fn + 3;
-                               } else if (0 == strncmp("cat", fn, 3)) {
-                                       src_form |= MANDOC_FORM;
-                                       sec = fn + 3;
-                               } else if (use_all)
-                                       sec = fn;
-                               else
-                                       continue;
-                       } else if (NULL == arch && (use_all ||
-                                       NULL == strchr(fn, '.')))
-                               arch = fn;
-                       else if (0 == use_all)
-                               continue;
+       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;
+               say(MANDOC_DB "~", "%s", sqlite3_errmsg(db));
+               return(0);
+       }

 
 

-                       buf[0] = '\0';
-                       strlcat(buf, dir, MAXPATHLEN);
-                       strlcat(buf, "/", MAXPATHLEN);
-                       sz = strlcat(buf, fn, MAXPATHLEN);
+       if (strlcpy(tempfilename, "/tmp/mandocdb.XXXXXX",
+           sizeof(tempfilename)) >= sizeof(tempfilename)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say("/tmp/mandocdb.XXXXXX", "Filename too long");
+               return(0);
+       }
+       if (NULL == mkdtemp(tempfilename)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(tempfilename, "%s", strerror(errno));
+               return(0);
+       }
+       if (strlcat(tempfilename, "/" MANDOC_DB,
+           sizeof(tempfilename)) >= sizeof(tempfilename)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(tempfilename, "Filename too long");
+               return(0);
+       }
+       rc = sqlite3_open_v2(tempfilename, &db, ofl, NULL);
+       if (SQLITE_OK != rc) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(tempfilename, "%s", sqlite3_errmsg(db));
+               return(0);
+       }

 
 

-                       if (MAXPATHLEN <= sz) {
-                               fprintf(stderr, "%s: Path too long\n", dir);
-                               return(0);
-                       }
- 
-                       if (verb > 2)
-                               printf("%s: Scanning\n", buf);
+create_tables:
+       sql = "CREATE TABLE \"mpages\" (\n"
+             " \"form\" INTEGER NOT NULL,\n"
+             " \"id\" 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(id) "
+               "ON DELETE CASCADE\n"
+             ");\n"
+             "\n"
+             "CREATE TABLE \"keys\" (\n"
+             " \"bits\" INTEGER NOT NULL,\n"
+             " \"key\" TEXT NOT NULL,\n"
+             " \"pageid\" INTEGER NOT NULL REFERENCES mpages(id) "
+               "ON DELETE CASCADE\n"
+             ");\n";
+
+       if (SQLITE_OK != sqlite3_exec(db, sql, NULL, NULL, NULL)) {
+               exitcode = (int)MANDOCLEVEL_SYSERR;
+               say(MANDOC_DB, "%s", sqlite3_errmsg(db));
+               return(0);
+       }

 
 

-                       if ( ! ofile_dirbuild(buf, sec, arch,
-                                       src_form, of))
-                               return(0);
-               }
-               if (DT_REG != dp->d_type ||
-                   (NULL == psec && !use_all) ||
-                   !strcmp(MANDOC_DB, fn) ||
-                   !strcmp(MANDOC_IDX, fn))
-                       continue;
+prepare_statements:
+       SQL_EXEC("PRAGMA foreign_keys = ON");
+       sql = "DELETE FROM mpages WHERE id IN "
+               "(SELECT pageid FROM mlinks WHERE "
+               "sec=? AND arch=? AND name=?)";
+       sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_DELETE_PAGE], NULL);
+       sql = "INSERT INTO mpages "
+               "(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 keys "
+               "(bits,key,pageid) VALUES (?,?,?)";
+       sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_KEY], NULL);
+
+#ifndef __APPLE__
+       /*
+        * When opening a new database, we can turn off
+        * synchronous mode for much better performance.
+        */

 
 

-               /*
-                * By default, skip files where the file name suffix
-                * does not agree with the section directory
-                * they are located in.
-                */
+       if (real)
+               SQL_EXEC("PRAGMA synchronous = OFF");
+#endif

 
 

-               suffix = strrchr(fn, '.');
-               if (0 == use_all) {
-                       if (NULL == suffix)
-                               continue;
-                       if ((MANDOC_SRC & src_form &&
-                                        strcmp(suffix + 1, psec)) ||
-                           (MANDOC_FORM & src_form &&
-                                        strcmp(suffix + 1, "0")))
-                                       continue;
-               }
-               if (NULL != suffix) {
-                       if ('0' == suffix[1])
-                               src_form |= MANDOC_FORM;
-                       else if ('1' <= suffix[1] && '9' >= suffix[1])
-                               src_form |= MANDOC_SRC;
-               }
+       return(1);
+}

 
 

+static void *
+hash_halloc(size_t sz, void *arg)
+{

 
 

-               /*
-                * Skip formatted manuals if a source version is
-                * available.  Ignore the age: it is very unlikely
-                * that people install newer formatted base manuals
-                * when they used to have source manuals before,
-                * and in ports, old manuals get removed on update.
-                */
-               if (0 == use_all && MANDOC_FORM & src_form &&
-                               NULL != psec) {
-                       buf[0] = '\0';
-                       strlcat(buf, dir, MAXPATHLEN);
-                       p = strrchr(buf, '/');
-                       if (NULL == p)
-                               p = buf;
-                       else
-                               p++;
-                       if (0 == strncmp("cat", p, 3))
-                               memcpy(p, "man", 3);
-                       strlcat(buf, "/", MAXPATHLEN);
-                       sz = strlcat(buf, fn, MAXPATHLEN);
-                       if (sz >= MAXPATHLEN) {
-                               fprintf(stderr, "%s: Path too long\n", buf);
-                               continue;
-                       }
-                       q = strrchr(buf, '.');
-                       if (NULL != q && p < q++) {
-                               *q = '\0';
-                               sz = strlcat(buf, psec, MAXPATHLEN);
-                               if (sz >= MAXPATHLEN) {
-                                       fprintf(stderr,
-                                           "%s: Path too long\n", buf);
-                                       continue;
-                               }
-                               if (0 == stat(buf, &sb))
-                                       continue;
-                       }
-               }
+       return(mandoc_calloc(sz, 1));
+}

 
 

-               buf[0] = '\0';
-               strlcat(buf, dir, MAXPATHLEN);
-               strlcat(buf, "/", MAXPATHLEN);
-               sz = strlcat(buf, fn, MAXPATHLEN);
-               if (sz >= MAXPATHLEN) {
-                       fprintf(stderr, "%s: Path too long\n", dir);
-                       continue;
-               }
+static void *
+hash_alloc(size_t sz, void *arg)
+{

 
 

-               nof = mandoc_calloc(1, sizeof(struct of));
-               nof->fname = mandoc_strdup(buf);
-               if (NULL != psec)
-                       nof->sec = mandoc_strdup(psec);
-               if (NULL != parch)
-                       nof->arch = mandoc_strdup(parch);
-               nof->src_form = src_form;
+       return(mandoc_malloc(sz));
+}

 
 

-               /*
-                * Remember the file name without the extension,
-                * to be used as the page title in the database.
-                */
+static void
+hash_free(void *p, size_t sz, void *arg)
+{

 
 

-               if (NULL != suffix)
-                       *suffix = '\0';
-               nof->title = mandoc_strdup(fn);
+       free(p);
+}

 
 

-               /*
-                * Add the structure to the list.
-                */
+static int
+set_basedir(const char *targetdir)
+{
+       static char      startdir[PATH_MAX];
+       static int       fd;

 
 

-               if (verb > 2)
-                       printf("%s: Scheduling\n", buf);
-               if (NULL == *of) {
-                       *of = nof;
-                       (*of)->first = nof;
-               } else {
-                       nof->first = (*of)->first;
-                       (*of)->next = nof;
-                       *of = nof;
+       /*
+        * 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.
+        */
+       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))) {
+                       exitcode = (int)MANDOCLEVEL_SYSERR;
+                       say(startdir, NULL);
+                       return(0);
+               }
+               if (NULL == targetdir)
+                       targetdir = startdir;
+       } else {
+               if (-1 == fd)
+                       return(0);
+               if (-1 == fchdir(fd)) {
+                       close(fd);
+                       basedir[0] = '\0';
+                       exitcode = (int)MANDOCLEVEL_SYSERR;
+                       say(startdir, NULL);
+                       return(0);
+               }
+               if (NULL == targetdir) {
+                       close(fd);
+                       return(1);

                }
        }
                }
        }

-
-       closedir(d);
+       if (NULL == realpath(targetdir, basedir)) {
+               basedir[0] = '\0';
+               exitcode = (int)MANDOCLEVEL_BADARG;
+               say(targetdir, NULL);
+               return(0);
+       } else if (-1 == chdir(basedir)) {
+               exitcode = (int)MANDOCLEVEL_BADARG;
+               say("", NULL);
+               return(0);
+       }

        return(1);
 }
 
 static void
        return(1);
 }
 
 static void

-ofile_free(struct of *of)
+say(const char *file, const char *format, ...)

 {
 {

-       struct of       *nof;
-
-       while (of) {
-               nof = of->next;
-               free(of->fname);
-               free(of->sec);
-               free(of->arch);
-               free(of->title);
-               free(of);
-               of = nof;
+       va_list          ap;
+
+       if ('\0' != *basedir)
+               fprintf(stderr, "%s", basedir);
+       if ('\0' != *basedir && '\0' != *file)
+               fputs("//", stderr);
+       if ('\0' != *file)
+               fprintf(stderr, "%s", file);
+       fputs(": ", stderr);
+
+       if (NULL == format) {
+               perror(NULL);
+               return;

        }
        }

-}

 
 

-static void
-usage(void)
-{
+       va_start(ap, format);
+       vfprintf(stderr, format, ap);
+       va_end(ap);

 
 

-       fprintf(stderr, "usage: %s [-v] "
-                       "[-d dir [files...] |"
-                       " -u dir [files...] |"
-                       " dir...]\n", progname);
+       fputc('\n', stderr);

 }
 }