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Annotation of mandoc/mandocdb.c, Revision 1.55

1.55    ! kristaps    1: /*     $Id: mandocdb.c,v 1.54 2012/06/09 11:21:12 kristaps Exp $ */
1.1       kristaps    2: /*
1.48      schwarze    3:  * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
                      4:  * Copyright (c) 2011, 2012 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18: #ifdef HAVE_CONFIG_H
                     19: #include "config.h"
                     20: #endif
                     21:
                     22: #include <sys/param.h>
1.50      kristaps   23: #include <sys/stat.h>
1.1       kristaps   24:
                     25: #include <assert.h>
1.43      kristaps   26: #include <ctype.h>
1.45      kristaps   27: #include <errno.h>
1.1       kristaps   28: #include <fcntl.h>
1.50      kristaps   29: #include <fts.h>
1.1       kristaps   30: #include <getopt.h>
1.50      kristaps   31: #include <stddef.h>
1.1       kristaps   32: #include <stdint.h>
                     33: #include <stdlib.h>
                     34: #include <string.h>
1.17      schwarze   35: #include <unistd.h>
1.1       kristaps   36:
1.53      kristaps   37: #ifdef HAVE_OHASH
1.50      kristaps   38: #include <ohash.h>
1.53      kristaps   39: #else
                     40: #include "compat_ohash.h"
                     41: #endif
1.50      kristaps   42: #include <sqlite3.h>
1.1       kristaps   43:
1.50      kristaps   44: #include "mdoc.h"
1.1       kristaps   45: #include "man.h"
                     46: #include "mandoc.h"
1.10      kristaps   47: #include "manpath.h"
1.55    ! kristaps   48: #include "mansearch.h"
1.1       kristaps   49:
1.50      kristaps   50: /* Post a warning to stderr. */
1.45      kristaps   51: #define WARNING(_f, _b, _fmt, _args...) \
                     52:        do if (warnings) { \
                     53:                fprintf(stderr, "%s: ", (_b)); \
                     54:                fprintf(stderr, (_fmt), ##_args); \
                     55:                if ('\0' != *(_f)) \
                     56:                        fprintf(stderr, ": %s", (_f)); \
                     57:                fprintf(stderr, "\n"); \
                     58:        } while (/* CONSTCOND */ 0)
1.50      kristaps   59: /* Post a "verbose" message to stderr. */
                     60: #define        DEBUG(_f, _b, _fmt, _args...) \
                     61:        do if (verb) { \
                     62:                fprintf(stderr, "%s: ", (_b)); \
                     63:                fprintf(stderr, (_fmt), ##_args); \
                     64:                fprintf(stderr, ": %s\n", (_f)); \
                     65:        } while (/* CONSTCOND */ 0)
1.38      schwarze   66:
1.52      kristaps   67: #define        SQL_EXEC(_v) \
                     68:        if (SQLITE_OK != sqlite3_exec(db, (_v), NULL, NULL, NULL)) \
                     69:                fprintf(stderr, "%s\n", sqlite3_errmsg(db))
                     70: #define        SQL_BIND_TEXT(_s, _i, _v) \
                     71:        if (SQLITE_OK != sqlite3_bind_text \
                     72:                ((_s), (_i)++, (_v), -1, SQLITE_STATIC)) \
                     73:                fprintf(stderr, "%s\n", sqlite3_errmsg(db))
                     74: #define        SQL_BIND_INT(_s, _i, _v) \
                     75:        if (SQLITE_OK != sqlite3_bind_int \
                     76:                ((_s), (_i)++, (_v))) \
                     77:                fprintf(stderr, "%s\n", sqlite3_errmsg(db))
                     78: #define        SQL_BIND_INT64(_s, _i, _v) \
                     79:        if (SQLITE_OK != sqlite3_bind_int64 \
                     80:                ((_s), (_i)++, (_v))) \
                     81:                fprintf(stderr, "%s\n", sqlite3_errmsg(db))
                     82: #define SQL_STEP(_s) \
                     83:        if (SQLITE_DONE != sqlite3_step((_s))) \
                     84:                fprintf(stderr, "%s\n", sqlite3_errmsg(db))
                     85:
1.50      kristaps   86: enum   op {
                     87:        OP_DEFAULT = 0, /* new dbs from dir list or default config */
                     88:        OP_CONFFILE, /* new databases from custom config file */
                     89:        OP_UPDATE, /* delete/add entries in existing database */
                     90:        OP_DELETE, /* delete entries from existing database */
                     91:        OP_TEST /* change no databases, report potential problems */
1.38      schwarze   92: };
                     93:
1.50      kristaps   94: enum   form {
                     95:        FORM_SRC, /* format is -man or -mdoc */
                     96:        FORM_CAT, /* format is cat */
                     97:        FORM_NONE /* format is unknown */
                     98: };
1.38      schwarze   99:
1.50      kristaps  100: struct str {
                    101:        char            *utf8; /* key in UTF-8 form */
                    102:        const struct of *of; /* if set, the owning parse */
                    103:        struct str      *next; /* next in owning parse sequence */
                    104:        uint64_t         mask; /* bitmask in sequence */
1.51      kristaps  105:        char             key[]; /* the string itself */
1.38      schwarze  106: };
                    107:
1.50      kristaps  108: struct id {
                    109:        ino_t            ino;
                    110:        dev_t            dev;
                    111: };
1.5       kristaps  112:
1.3       kristaps  113: struct of {
1.50      kristaps  114:        struct id        id; /* used for hashing routine */
                    115:        struct of       *next; /* next in ofs */
                    116:        enum form        dform; /* path-cued form */
                    117:        enum form        sform; /* suffix-cued form */
                    118:        char             file[MAXPATHLEN]; /* filename rel. to manpath */
                    119:        const char      *desc; /* parsed description */
                    120:        const char      *sec; /* suffix-cued section (or empty) */
                    121:        const char      *dsec; /* path-cued section (or empty) */
                    122:        const char      *arch; /* path-cued arch. (or empty) */
                    123:        const char      *name; /* name (from filename) (not empty) */
1.3       kristaps  124: };
                    125:
1.50      kristaps  126: enum   stmt {
                    127:        STMT_DELETE = 0, /* delete manpage */
                    128:        STMT_INSERT_DOC, /* insert manpage */
                    129:        STMT_INSERT_KEY, /* insert parsed key */
                    130:        STMT__MAX
1.1       kristaps  131: };
                    132:
1.50      kristaps  133: typedef        int (*mdoc_fp)(struct of *, const struct mdoc_node *);
1.1       kristaps  134:
1.50      kristaps  135: struct mdoc_handler {
                    136:        mdoc_fp          fp; /* optional handler */
                    137:        uint64_t         mask;  /* set unless handler returns 0 */
                    138:        int              flags;  /* for use by pmdoc_node */
                    139: #define        MDOCF_CHILD      0x01  /* automatically index child nodes */
1.1       kristaps  140: };
                    141:
1.50      kristaps  142: static void     dbclose(const char *, int);
                    143: static void     dbindex(struct mchars *, int,
                    144:                        const struct of *, const char *);
                    145: static int      dbopen(const char *, int);
                    146: static void     dbprune(const char *);
                    147: static void     fileadd(struct of *);
                    148: static int      filecheck(const char *);
                    149: static void     filescan(const char *, const char *);
                    150: static struct str *hashget(const char *, size_t);
                    151: static void    *hash_alloc(size_t, void *);
                    152: static void     hash_free(void *, size_t, void *);
                    153: static void    *hash_halloc(size_t, void *);
                    154: static void     inoadd(const struct stat *, struct of *);
                    155: static int      inocheck(const struct stat *);
                    156: static void     ofadd(const char *, int, const char *,
                    157:                        const char *, const char *, const char *,
                    158:                        const char *, const struct stat *);
                    159: static void     offree(void);
                    160: static int      ofmerge(struct mchars *, struct mparse *, const char *);
                    161: static void     parse_catpage(struct of *, const char *);
                    162: static int      parse_man(struct of *,
                    163:                        const struct man_node *);
                    164: static void     parse_mdoc(struct of *, const struct mdoc_node *);
                    165: static int      parse_mdoc_body(struct of *, const struct mdoc_node *);
                    166: static int      parse_mdoc_head(struct of *, const struct mdoc_node *);
                    167: static int      parse_mdoc_Fd(struct of *, const struct mdoc_node *);
                    168: static int      parse_mdoc_Fn(struct of *, const struct mdoc_node *);
                    169: static int      parse_mdoc_In(struct of *, const struct mdoc_node *);
                    170: static int      parse_mdoc_Nd(struct of *, const struct mdoc_node *);
                    171: static int      parse_mdoc_Nm(struct of *, const struct mdoc_node *);
                    172: static int      parse_mdoc_Sh(struct of *, const struct mdoc_node *);
                    173: static int      parse_mdoc_St(struct of *, const struct mdoc_node *);
                    174: static int      parse_mdoc_Xr(struct of *, const struct mdoc_node *);
                    175: static int      path_reset(const char *, int, const char *);
                    176: static void     putkey(const struct of *,
                    177:                        const char *, uint64_t);
                    178: static void     putkeys(const struct of *,
                    179:                        const char *, int, uint64_t);
                    180: static void     putmdockey(const struct of *,
                    181:                        const struct mdoc_node *, uint64_t);
                    182: static char    *stradd(const char *);
                    183: static char    *straddbuf(const char *, size_t);
                    184: static int      treescan(const char *);
                    185: static size_t   utf8(unsigned int, char [7]);
                    186: static void     utf8key(struct mchars *, struct str *);
                    187: static void     wordaddbuf(const struct of *,
                    188:                        const char *, size_t, uint64_t);
                    189:
                    190: static char            *progname;
                    191: static int              use_all; /* use all found files */
                    192: static int              nodb; /* no database changes */
                    193: static int              verb; /* print what we're doing */
                    194: static int              warnings; /* warn about crap */
                    195: static enum op          op; /* operational mode */
                    196: static struct ohash     inos; /* table of inodes/devices */
                    197: static struct ohash     filenames; /* table of filenames */
                    198: static struct ohash     strings; /* table of all strings */
                    199: static struct of       *ofs = NULL; /* vector of files to parse */
                    200: static struct str      *words = NULL; /* word list in current parse */
                    201: static sqlite3         *db = NULL; /* current database */
                    202: static sqlite3_stmt    *stmts[STMT__MAX]; /* current statements */
1.25      schwarze  203:
                    204: static const struct mdoc_handler mdocs[MDOC_MAX] = {
                    205:        { NULL, 0, 0 },  /* Ap */
                    206:        { NULL, 0, 0 },  /* Dd */
                    207:        { NULL, 0, 0 },  /* Dt */
                    208:        { NULL, 0, 0 },  /* Os */
1.50      kristaps  209:        { parse_mdoc_Sh, TYPE_Sh, MDOCF_CHILD }, /* Sh */
                    210:        { parse_mdoc_head, TYPE_Ss, MDOCF_CHILD }, /* Ss */
1.25      schwarze  211:        { NULL, 0, 0 },  /* Pp */
                    212:        { NULL, 0, 0 },  /* D1 */
                    213:        { NULL, 0, 0 },  /* Dl */
                    214:        { NULL, 0, 0 },  /* Bd */
                    215:        { NULL, 0, 0 },  /* Ed */
                    216:        { NULL, 0, 0 },  /* Bl */
                    217:        { NULL, 0, 0 },  /* El */
                    218:        { NULL, 0, 0 },  /* It */
                    219:        { NULL, 0, 0 },  /* Ad */
                    220:        { NULL, TYPE_An, MDOCF_CHILD },  /* An */
                    221:        { NULL, TYPE_Ar, MDOCF_CHILD },  /* Ar */
                    222:        { NULL, TYPE_Cd, MDOCF_CHILD },  /* Cd */
                    223:        { NULL, TYPE_Cm, MDOCF_CHILD },  /* Cm */
                    224:        { NULL, TYPE_Dv, MDOCF_CHILD },  /* Dv */
                    225:        { NULL, TYPE_Er, MDOCF_CHILD },  /* Er */
                    226:        { NULL, TYPE_Ev, MDOCF_CHILD },  /* Ev */
                    227:        { NULL, 0, 0 },  /* Ex */
                    228:        { NULL, TYPE_Fa, MDOCF_CHILD },  /* Fa */
1.50      kristaps  229:        { parse_mdoc_Fd, TYPE_In, 0 },  /* Fd */
1.25      schwarze  230:        { NULL, TYPE_Fl, MDOCF_CHILD },  /* Fl */
1.50      kristaps  231:        { parse_mdoc_Fn, 0, 0 },  /* Fn */
1.25      schwarze  232:        { NULL, TYPE_Ft, MDOCF_CHILD },  /* Ft */
                    233:        { NULL, TYPE_Ic, MDOCF_CHILD },  /* Ic */
1.50      kristaps  234:        { parse_mdoc_In, TYPE_In, MDOCF_CHILD },  /* In */
1.25      schwarze  235:        { NULL, TYPE_Li, MDOCF_CHILD },  /* Li */
1.50      kristaps  236:        { parse_mdoc_Nd, TYPE_Nd, MDOCF_CHILD },  /* Nd */
                    237:        { parse_mdoc_Nm, TYPE_Nm, MDOCF_CHILD },  /* Nm */
1.25      schwarze  238:        { NULL, 0, 0 },  /* Op */
                    239:        { NULL, 0, 0 },  /* Ot */
                    240:        { NULL, TYPE_Pa, MDOCF_CHILD },  /* Pa */
                    241:        { NULL, 0, 0 },  /* Rv */
1.50      kristaps  242:        { parse_mdoc_St, TYPE_St, 0 },  /* St */
1.25      schwarze  243:        { NULL, TYPE_Va, MDOCF_CHILD },  /* Va */
1.50      kristaps  244:        { parse_mdoc_body, TYPE_Va, MDOCF_CHILD },  /* Vt */
                    245:        { parse_mdoc_Xr, TYPE_Xr, 0 },  /* Xr */
1.25      schwarze  246:        { NULL, 0, 0 },  /* %A */
                    247:        { NULL, 0, 0 },  /* %B */
                    248:        { NULL, 0, 0 },  /* %D */
                    249:        { NULL, 0, 0 },  /* %I */
                    250:        { NULL, 0, 0 },  /* %J */
                    251:        { NULL, 0, 0 },  /* %N */
                    252:        { NULL, 0, 0 },  /* %O */
                    253:        { NULL, 0, 0 },  /* %P */
                    254:        { NULL, 0, 0 },  /* %R */
                    255:        { NULL, 0, 0 },  /* %T */
                    256:        { NULL, 0, 0 },  /* %V */
                    257:        { NULL, 0, 0 },  /* Ac */
                    258:        { NULL, 0, 0 },  /* Ao */
                    259:        { NULL, 0, 0 },  /* Aq */
                    260:        { NULL, TYPE_At, MDOCF_CHILD },  /* At */
                    261:        { NULL, 0, 0 },  /* Bc */
                    262:        { NULL, 0, 0 },  /* Bf */
                    263:        { NULL, 0, 0 },  /* Bo */
                    264:        { NULL, 0, 0 },  /* Bq */
                    265:        { NULL, TYPE_Bsx, MDOCF_CHILD },  /* Bsx */
                    266:        { NULL, TYPE_Bx, MDOCF_CHILD },  /* Bx */
                    267:        { NULL, 0, 0 },  /* Db */
                    268:        { NULL, 0, 0 },  /* Dc */
                    269:        { NULL, 0, 0 },  /* Do */
                    270:        { NULL, 0, 0 },  /* Dq */
                    271:        { NULL, 0, 0 },  /* Ec */
                    272:        { NULL, 0, 0 },  /* Ef */
                    273:        { NULL, TYPE_Em, MDOCF_CHILD },  /* Em */
                    274:        { NULL, 0, 0 },  /* Eo */
                    275:        { NULL, TYPE_Fx, MDOCF_CHILD },  /* Fx */
                    276:        { NULL, TYPE_Ms, MDOCF_CHILD },  /* Ms */
                    277:        { NULL, 0, 0 },  /* No */
                    278:        { NULL, 0, 0 },  /* Ns */
                    279:        { NULL, TYPE_Nx, MDOCF_CHILD },  /* Nx */
                    280:        { NULL, TYPE_Ox, MDOCF_CHILD },  /* Ox */
                    281:        { NULL, 0, 0 },  /* Pc */
                    282:        { NULL, 0, 0 },  /* Pf */
                    283:        { NULL, 0, 0 },  /* Po */
                    284:        { NULL, 0, 0 },  /* Pq */
                    285:        { NULL, 0, 0 },  /* Qc */
                    286:        { NULL, 0, 0 },  /* Ql */
                    287:        { NULL, 0, 0 },  /* Qo */
                    288:        { NULL, 0, 0 },  /* Qq */
                    289:        { NULL, 0, 0 },  /* Re */
                    290:        { NULL, 0, 0 },  /* Rs */
                    291:        { NULL, 0, 0 },  /* Sc */
                    292:        { NULL, 0, 0 },  /* So */
                    293:        { NULL, 0, 0 },  /* Sq */
                    294:        { NULL, 0, 0 },  /* Sm */
                    295:        { NULL, 0, 0 },  /* Sx */
                    296:        { NULL, TYPE_Sy, MDOCF_CHILD },  /* Sy */
                    297:        { NULL, TYPE_Tn, MDOCF_CHILD },  /* Tn */
                    298:        { NULL, 0, 0 },  /* Ux */
                    299:        { NULL, 0, 0 },  /* Xc */
                    300:        { NULL, 0, 0 },  /* Xo */
1.50      kristaps  301:        { parse_mdoc_head, TYPE_Fn, 0 },  /* Fo */
1.25      schwarze  302:        { NULL, 0, 0 },  /* Fc */
                    303:        { NULL, 0, 0 },  /* Oo */
                    304:        { NULL, 0, 0 },  /* Oc */
                    305:        { NULL, 0, 0 },  /* Bk */
                    306:        { NULL, 0, 0 },  /* Ek */
                    307:        { NULL, 0, 0 },  /* Bt */
                    308:        { NULL, 0, 0 },  /* Hf */
                    309:        { NULL, 0, 0 },  /* Fr */
                    310:        { NULL, 0, 0 },  /* Ud */
                    311:        { NULL, TYPE_Lb, MDOCF_CHILD },  /* Lb */
                    312:        { NULL, 0, 0 },  /* Lp */
                    313:        { NULL, TYPE_Lk, MDOCF_CHILD },  /* Lk */
                    314:        { NULL, TYPE_Mt, MDOCF_CHILD },  /* Mt */
                    315:        { NULL, 0, 0 },  /* Brq */
                    316:        { NULL, 0, 0 },  /* Bro */
                    317:        { NULL, 0, 0 },  /* Brc */
                    318:        { NULL, 0, 0 },  /* %C */
                    319:        { NULL, 0, 0 },  /* Es */
                    320:        { NULL, 0, 0 },  /* En */
                    321:        { NULL, TYPE_Dx, MDOCF_CHILD },  /* Dx */
                    322:        { NULL, 0, 0 },  /* %Q */
                    323:        { NULL, 0, 0 },  /* br */
                    324:        { NULL, 0, 0 },  /* sp */
                    325:        { NULL, 0, 0 },  /* %U */
                    326:        { NULL, 0, 0 },  /* Ta */
1.1       kristaps  327: };
                    328:
                    329: int
                    330: main(int argc, char *argv[])
                    331: {
1.50      kristaps  332:        char              cwd[MAXPATHLEN];
                    333:        int               ch, rc, fd, i;
1.53      kristaps  334:        unsigned int      index;
1.50      kristaps  335:        size_t            j, sz;
                    336:        const char       *dir;
                    337:        struct str       *s;
                    338:        struct mchars    *mc;
                    339:        struct manpaths   dirs;
                    340:        struct mparse    *mp;
                    341:        struct ohash_info ino_info, filename_info, str_info;
                    342:
                    343:        memset(stmts, 0, STMT__MAX * sizeof(sqlite3_stmt *));
                    344:        memset(&dirs, 0, sizeof(struct manpaths));
                    345:
                    346:        ino_info.halloc = filename_info.halloc =
                    347:                str_info.halloc = hash_halloc;
                    348:        ino_info.hfree = filename_info.hfree =
                    349:                str_info.hfree = hash_free;
                    350:        ino_info.alloc = filename_info.alloc =
                    351:                str_info.alloc = hash_alloc;
                    352:
                    353:        ino_info.key_offset = offsetof(struct of, id);
                    354:        filename_info.key_offset = offsetof(struct of, file);
                    355:        str_info.key_offset = offsetof(struct str, key);
1.1       kristaps  356:
                    357:        progname = strrchr(argv[0], '/');
                    358:        if (progname == NULL)
                    359:                progname = argv[0];
                    360:        else
                    361:                ++progname;
                    362:
1.50      kristaps  363:        /*
                    364:         * Remember where we started by keeping a fd open to the origin
                    365:         * path component: throughout this utility, we chdir() a lot to
                    366:         * handle relative paths, and by doing this, we can return to
                    367:         * the starting point.
                    368:         */
                    369:        if (NULL == getcwd(cwd, MAXPATHLEN)) {
                    370:                perror(NULL);
                    371:                return(EXIT_FAILURE);
                    372:        } else if (-1 == (fd = open(cwd, O_RDONLY, 0))) {
                    373:                perror(cwd);
                    374:                return(EXIT_FAILURE);
                    375:        }
                    376:
                    377:        /*
                    378:         * We accept a few different invocations.
                    379:         * The CHECKOP macro makes sure that invocation styles don't
                    380:         * clobber each other.
                    381:         */
                    382: #define        CHECKOP(_op, _ch) do \
                    383:        if (OP_DEFAULT != (_op)) { \
                    384:                fprintf(stderr, "-%c: Conflicting option\n", (_ch)); \
                    385:                goto usage; \
                    386:        } while (/*CONSTCOND*/0)
1.10      kristaps  387:
1.50      kristaps  388:        dir = NULL;
1.38      schwarze  389:        op = OP_DEFAULT;
1.1       kristaps  390:
1.50      kristaps  391:        while (-1 != (ch = getopt(argc, argv, "aC:d:ntu:vW")))
1.1       kristaps  392:                switch (ch) {
1.12      schwarze  393:                case ('a'):
                    394:                        use_all = 1;
                    395:                        break;
1.34      schwarze  396:                case ('C'):
1.50      kristaps  397:                        CHECKOP(op, ch);
1.38      schwarze  398:                        dir = optarg;
                    399:                        op = OP_CONFFILE;
1.34      schwarze  400:                        break;
1.5       kristaps  401:                case ('d'):
1.50      kristaps  402:                        CHECKOP(op, ch);
1.5       kristaps  403:                        dir = optarg;
                    404:                        op = OP_UPDATE;
                    405:                        break;
1.50      kristaps  406:                case ('n'):
                    407:                        nodb = 1;
                    408:                        break;
1.38      schwarze  409:                case ('t'):
1.50      kristaps  410:                        CHECKOP(op, ch);
1.38      schwarze  411:                        dup2(STDOUT_FILENO, STDERR_FILENO);
                    412:                        op = OP_TEST;
1.50      kristaps  413:                        nodb = warnings = 1;
1.38      schwarze  414:                        break;
1.5       kristaps  415:                case ('u'):
1.50      kristaps  416:                        CHECKOP(op, ch);
1.5       kristaps  417:                        dir = optarg;
                    418:                        op = OP_DELETE;
                    419:                        break;
                    420:                case ('v'):
                    421:                        verb++;
                    422:                        break;
1.38      schwarze  423:                case ('W'):
                    424:                        warnings = 1;
                    425:                        break;
1.1       kristaps  426:                default:
1.38      schwarze  427:                        goto usage;
1.1       kristaps  428:                }
                    429:
                    430:        argc -= optind;
                    431:        argv += optind;
                    432:
1.38      schwarze  433:        if (OP_CONFFILE == op && argc > 0) {
1.50      kristaps  434:                fprintf(stderr, "-C: Too many arguments\n");
1.38      schwarze  435:                goto usage;
                    436:        }
                    437:
1.50      kristaps  438:        rc = 1;
                    439:        mp = mparse_alloc(MPARSE_AUTO,
                    440:                MANDOCLEVEL_FATAL, NULL, NULL, NULL);
                    441:        mc = mchars_alloc();
                    442:
                    443:        ohash_init(&strings, 6, &str_info);
                    444:        ohash_init(&inos, 6, &ino_info);
                    445:        ohash_init(&filenames, 6, &filename_info);
                    446:
                    447:        if (OP_UPDATE == op || OP_DELETE == op || OP_TEST == op) {
                    448:                /*
                    449:                 * Force processing all files.
                    450:                 */
                    451:                use_all = 1;
                    452:                if (NULL == dir)
                    453:                        dir = cwd;
                    454:                /*
                    455:                 * All of these deal with a specific directory.
                    456:                 * Jump into that directory then collect files specified
                    457:                 * on the command-line.
                    458:                 */
                    459:                if (0 == path_reset(cwd, fd, dir))
                    460:                        goto out;
                    461:                for (i = 0; i < argc; i++)
                    462:                        filescan(argv[i], dir);
                    463:                if (0 == dbopen(dir, 1))
                    464:                        goto out;
                    465:                if (OP_TEST != op)
                    466:                        dbprune(dir);
                    467:                if (OP_DELETE != op)
                    468:                        rc = ofmerge(mc, mp, dir);
                    469:                dbclose(dir, 1);
                    470:        } else {
                    471:                /*
                    472:                 * If we have arguments, use them as our manpaths.
                    473:                 * If we don't, grok from manpath(1) or however else
                    474:                 * manpath_parse() wants to do it.
                    475:                 */
                    476:                if (argc > 0) {
                    477:                        dirs.paths = mandoc_calloc
                    478:                                (argc, sizeof(char *));
                    479:                        dirs.sz = (size_t)argc;
                    480:                        for (i = 0; i < argc; i++)
                    481:                                dirs.paths[i] = mandoc_strdup(argv[i]);
                    482:                } else
                    483:                        manpath_parse(&dirs, dir, NULL, NULL);
                    484:
                    485:                /*
                    486:                 * First scan the tree rooted at a base directory.
                    487:                 * Then whak its database (if one exists), parse, and
                    488:                 * build up the database.
                    489:                 * Ignore zero-length directories and strip trailing
                    490:                 * slashes.
                    491:                 */
                    492:                for (j = 0; j < dirs.sz; j++) {
                    493:                        sz = strlen(dirs.paths[j]);
                    494:                        if (sz && '/' == dirs.paths[j][sz - 1])
                    495:                                dirs.paths[j][--sz] = '\0';
                    496:                        if (0 == sz)
                    497:                                continue;
                    498:                        if (0 == path_reset(cwd, fd, dirs.paths[j]))
                    499:                                goto out;
                    500:                        if (0 == treescan(dirs.paths[j]))
                    501:                                goto out;
                    502:                        if (0 == path_reset(cwd, fd, dirs.paths[j]))
                    503:                                goto out;
                    504:                        if (0 == dbopen(dirs.paths[j], 0))
                    505:                                goto out;
1.52      kristaps  506:
                    507:                        /*
                    508:                         * Since we're opening up a new database, we can
                    509:                         * turn off synchronous mode for much better
                    510:                         * performance.
                    511:                         */
1.54      kristaps  512: #ifndef __APPLE__
1.52      kristaps  513:                        SQL_EXEC("PRAGMA synchronous = OFF");
1.54      kristaps  514: #endif
1.52      kristaps  515:
1.50      kristaps  516:                        if (0 == ofmerge(mc, mp, dirs.paths[j]))
                    517:                                goto out;
                    518:                        dbclose(dirs.paths[j], 0);
                    519:                        offree();
                    520:                        ohash_delete(&inos);
                    521:                        ohash_init(&inos, 6, &ino_info);
                    522:                        ohash_delete(&filenames);
                    523:                        ohash_init(&filenames, 6, &filename_info);
                    524:                }
                    525:        }
                    526: out:
                    527:        close(fd);
                    528:        manpath_free(&dirs);
                    529:        mchars_free(mc);
                    530:        mparse_free(mp);
1.53      kristaps  531:        for (s = ohash_first(&strings, &index);
                    532:                        NULL != s; s = ohash_next(&strings, &index)) {
1.50      kristaps  533:                if (s->utf8 != s->key)
                    534:                        free(s->utf8);
                    535:                free(s);
                    536:        }
                    537:        ohash_delete(&strings);
                    538:        ohash_delete(&inos);
                    539:        ohash_delete(&filenames);
                    540:        offree();
                    541:        return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
                    542: usage:
                    543:        fprintf(stderr, "usage: %s [-anvW] [-C file]\n"
                    544:                        "       %s [-anvW] dir ...\n"
                    545:                        "       %s [-nvW] -d dir [file ...]\n"
                    546:                        "       %s [-nvW] -u dir [file ...]\n"
                    547:                        "       %s -t file ...\n",
                    548:                       progname, progname, progname,
                    549:                       progname, progname);
                    550:
                    551:        return(EXIT_FAILURE);
                    552: }
                    553:
                    554: /*
                    555:  * Scan a directory tree rooted at "base" for manpages.
                    556:  * We use fts(), scanning directory parts along the way for clues to our
                    557:  * section and architecture.
                    558:  *
                    559:  * If use_all has been specified, grok all files.
                    560:  * If not, sanitise paths to the following:
                    561:  *
                    562:  *   [./]man*[/<arch>]/<name>.<section>
                    563:  *   or
                    564:  *   [./]cat<section>[/<arch>]/<name>.0
                    565:  *
                    566:  * TODO: accomodate for multi-language directories.
                    567:  */
                    568: static int
                    569: treescan(const char *base)
                    570: {
                    571:        FTS             *f;
                    572:        FTSENT          *ff;
                    573:        int              dform;
                    574:        char            *sec;
                    575:        const char      *dsec, *arch, *cp, *name, *path;
                    576:        const char      *argv[2];
                    577:
                    578:        argv[0] = ".";
                    579:        argv[1] = (char *)NULL;
                    580:
                    581:        /*
                    582:         * Walk through all components under the directory, using the
                    583:         * logical descent of files.
                    584:         */
                    585:        f = fts_open((char * const *)argv, FTS_LOGICAL, NULL);
                    586:        if (NULL == f) {
                    587:                perror(base);
                    588:                return(0);
                    589:        }
                    590:
                    591:        dsec = arch = NULL;
                    592:        dform = FORM_NONE;
                    593:
                    594:        while (NULL != (ff = fts_read(f))) {
                    595:                path = ff->fts_path + 2;
                    596:                /*
                    597:                 * If we're a regular file, add an "of" by using the
                    598:                 * stored directory data and handling the filename.
                    599:                 * Disallow duplicate (hard-linked) files.
                    600:                 */
                    601:                if (FTS_F == ff->fts_info) {
                    602:                        if ( ! use_all && ff->fts_level < 2) {
                    603:                                WARNING(path, base, "Extraneous file");
                    604:                                continue;
                    605:                        } else if (inocheck(ff->fts_statp)) {
                    606:                                WARNING(path, base, "Duplicate file");
                    607:                                continue;
                    608:                        }
                    609:
                    610:                        cp = ff->fts_name;
                    611:
                    612:                        if (0 == strcmp(cp, "mandocdb.db")) {
                    613:                                WARNING(path, base, "Skip database");
                    614:                                continue;
                    615:                        } else if (NULL != (cp = strrchr(cp, '.'))) {
                    616:                                if (0 == strcmp(cp + 1, "html")) {
                    617:                                        WARNING(path, base, "Skip html");
                    618:                                        continue;
                    619:                                } else if (0 == strcmp(cp + 1, "gz")) {
                    620:                                        WARNING(path, base, "Skip gz");
                    621:                                        continue;
                    622:                                } else if (0 == strcmp(cp + 1, "ps")) {
                    623:                                        WARNING(path, base, "Skip ps");
                    624:                                        continue;
                    625:                                } else if (0 == strcmp(cp + 1, "pdf")) {
                    626:                                        WARNING(path, base, "Skip pdf");
                    627:                                        continue;
                    628:                                }
                    629:                        }
1.1       kristaps  630:
1.50      kristaps  631:                        if (NULL != (sec = strrchr(ff->fts_name, '.'))) {
                    632:                                *sec = '\0';
                    633:                                sec = stradd(sec + 1);
                    634:                        }
                    635:                        name = stradd(ff->fts_name);
                    636:                        ofadd(base, dform, path,
                    637:                                name, dsec, sec, arch, ff->fts_statp);
                    638:                        continue;
                    639:                } else if (FTS_D != ff->fts_info &&
                    640:                                FTS_DP != ff->fts_info)
                    641:                        continue;
1.1       kristaps  642:
1.50      kristaps  643:                switch (ff->fts_level) {
                    644:                case (0):
                    645:                        /* Ignore the root directory. */
                    646:                        break;
                    647:                case (1):
                    648:                        /*
                    649:                         * This might contain manX/ or catX/.
                    650:                         * Try to infer this from the name.
                    651:                         * If we're not in use_all, enforce it.
                    652:                         */
                    653:                        dsec = NULL;
                    654:                        dform = FORM_NONE;
                    655:                        cp = ff->fts_name;
                    656:                        if (FTS_DP == ff->fts_info)
                    657:                                break;
1.1       kristaps  658:
1.50      kristaps  659:                        if (0 == strncmp(cp, "man", 3)) {
                    660:                                dform = FORM_SRC;
                    661:                                dsec = stradd(cp + 3);
                    662:                        } else if (0 == strncmp(cp, "cat", 3)) {
                    663:                                dform = FORM_CAT;
                    664:                                dsec = stradd(cp + 3);
                    665:                        }
1.1       kristaps  666:
1.50      kristaps  667:                        if (NULL != dsec || use_all)
                    668:                                break;
1.1       kristaps  669:
1.50      kristaps  670:                        WARNING(path, base, "Unknown directory part");
                    671:                        fts_set(f, ff, FTS_SKIP);
                    672:                        break;
                    673:                case (2):
                    674:                        /*
                    675:                         * Possibly our architecture.
                    676:                         * If we're descending, keep tabs on it.
                    677:                         */
                    678:                        arch = NULL;
                    679:                        if (FTS_DP != ff->fts_info && NULL != dsec)
                    680:                                arch = stradd(ff->fts_name);
                    681:                        break;
                    682:                default:
                    683:                        if (FTS_DP == ff->fts_info || use_all)
                    684:                                break;
                    685:                        WARNING(path, base, "Extraneous directory part");
                    686:                        fts_set(f, ff, FTS_SKIP);
                    687:                        break;
1.5       kristaps  688:                }
1.50      kristaps  689:        }
                    690:
                    691:        fts_close(f);
                    692:        return(1);
                    693: }
1.5       kristaps  694:
1.50      kristaps  695: /*
                    696:  * Add a file to the file vector.
                    697:  * Do not verify that it's a "valid" looking manpage (we'll do that
                    698:  * later).
                    699:  *
                    700:  * Try to infer the manual section, architecture, and page name from the
                    701:  * path, assuming it looks like
                    702:  *
                    703:  *   [./]man*[/<arch>]/<name>.<section>
                    704:  *   or
                    705:  *   [./]cat<section>[/<arch>]/<name>.0
                    706:  *
                    707:  * Stuff this information directly into the "of" vector.
                    708:  * See treescan() for the fts(3) version of this.
                    709:  */
                    710: static void
                    711: filescan(const char *file, const char *base)
                    712: {
                    713:        const char      *sec, *arch, *name, *dsec;
                    714:        char            *p, *start, *buf;
                    715:        int              dform;
                    716:        struct stat      st;
1.5       kristaps  717:
1.50      kristaps  718:        assert(use_all);
1.5       kristaps  719:
1.50      kristaps  720:        if (0 == strncmp(file, "./", 2))
                    721:                file += 2;
1.5       kristaps  722:
1.50      kristaps  723:        if (-1 == stat(file, &st)) {
                    724:                WARNING(file, base, "%s", strerror(errno));
                    725:                return;
                    726:        } else if ( ! (S_IFREG & st.st_mode)) {
                    727:                WARNING(file, base, "Not a regular file");
                    728:                return;
                    729:        } else if (inocheck(&st)) {
                    730:                WARNING(file, base, "Duplicate file");
                    731:                return;
                    732:        }
1.5       kristaps  733:
1.50      kristaps  734:        buf = mandoc_strdup(file);
                    735:        start = buf;
                    736:        sec = arch = name = dsec = NULL;
                    737:        dform = FORM_NONE;
1.17      schwarze  738:
1.50      kristaps  739:        /*
                    740:         * First try to guess our directory structure.
                    741:         * If we find a separator, try to look for man* or cat*.
                    742:         * If we find one of these and what's underneath is a directory,
                    743:         * assume it's an architecture.
                    744:         */
                    745:        if (NULL != (p = strchr(start, '/'))) {
                    746:                *p++ = '\0';
                    747:                if (0 == strncmp(start, "man", 3)) {
                    748:                        dform = FORM_SRC;
                    749:                        dsec = start + 3;
                    750:                } else if (0 == strncmp(start, "cat", 3)) {
                    751:                        dform = FORM_CAT;
                    752:                        dsec = start + 3;
1.17      schwarze  753:                }
1.5       kristaps  754:
1.50      kristaps  755:                start = p;
                    756:                if (NULL != dsec && NULL != (p = strchr(start, '/'))) {
                    757:                        *p++ = '\0';
                    758:                        arch = start;
                    759:                        start = p;
                    760:                }
                    761:        }
                    762:
                    763:        /*
                    764:         * Now check the file suffix.
                    765:         * Suffix of `.0' indicates a catpage, `.1-9' is a manpage.
                    766:         */
                    767:        p = strrchr(start, '\0');
                    768:        while (p-- > start && '/' != *p && '.' != *p)
                    769:                /* Loop. */ ;
                    770:
                    771:        if ('.' == *p) {
                    772:                *p++ = '\0';
                    773:                sec = p;
1.5       kristaps  774:        }
                    775:
1.10      kristaps  776:        /*
1.50      kristaps  777:         * Now try to parse the name.
                    778:         * Use the filename portion of the path.
1.10      kristaps  779:         */
1.50      kristaps  780:        name = start;
                    781:        if (NULL != (p = strrchr(start, '/'))) {
                    782:                name = p + 1;
                    783:                *p = '\0';
                    784:        }
                    785:
                    786:        ofadd(base, dform, file, name, dsec, sec, arch, &st);
                    787:        free(buf);
                    788: }
                    789:
                    790: /*
                    791:  * See fileadd().
                    792:  */
                    793: static int
                    794: filecheck(const char *name)
                    795: {
                    796:        unsigned int     index;
1.10      kristaps  797:
1.50      kristaps  798:        index = ohash_qlookup(&filenames, name);
                    799:        return(NULL != ohash_find(&filenames, index));
                    800: }
1.10      kristaps  801:
1.50      kristaps  802: /*
                    803:  * Use the standard hashing mechanism (K&R) to see if the given filename
                    804:  * already exists.
                    805:  */
                    806: static void
                    807: fileadd(struct of *of)
                    808: {
                    809:        unsigned int     index;
1.1       kristaps  810:
1.50      kristaps  811:        index = ohash_qlookup(&filenames, of->file);
                    812:        assert(NULL == ohash_find(&filenames, index));
                    813:        ohash_insert(&filenames, index, of);
                    814: }
1.3       kristaps  815:
1.50      kristaps  816: /*
                    817:  * See inoadd().
                    818:  */
                    819: static int
                    820: inocheck(const struct stat *st)
                    821: {
                    822:        struct id        id;
                    823:        uint32_t         hash;
                    824:        unsigned int     index;
                    825:
                    826:        memset(&id, 0, sizeof(id));
                    827:        id.ino = hash = st->st_ino;
                    828:        id.dev = st->st_dev;
                    829:        index = ohash_lookup_memory
                    830:                (&inos, (char *)&id, sizeof(id), hash);
1.13      schwarze  831:
1.50      kristaps  832:        return(NULL != ohash_find(&inos, index));
                    833: }
1.5       kristaps  834:
1.50      kristaps  835: /*
                    836:  * The hashing function used here is quite simple: simply take the inode
                    837:  * and use uint32_t of its bits.
                    838:  * Then when we do the lookup, use both the inode and device identifier.
                    839:  */
                    840: static void
                    841: inoadd(const struct stat *st, struct of *of)
                    842: {
                    843:        uint32_t         hash;
                    844:        unsigned int     index;
1.1       kristaps  845:
1.50      kristaps  846:        of->id.ino = hash = st->st_ino;
                    847:        of->id.dev = st->st_dev;
                    848:        index = ohash_lookup_memory
                    849:                (&inos, (char *)&of->id, sizeof(of->id), hash);
1.1       kristaps  850:
1.50      kristaps  851:        assert(NULL == ohash_find(&inos, index));
                    852:        ohash_insert(&inos, index, of);
                    853: }
1.35      kristaps  854:
1.50      kristaps  855: static void
                    856: ofadd(const char *base, int dform, const char *file,
                    857:                const char *name, const char *dsec, const char *sec,
                    858:                const char *arch, const struct stat *st)
                    859: {
                    860:        struct of       *of;
                    861:        int              sform;
                    862:
                    863:        assert(NULL != file);
                    864:
                    865:        if (NULL == name)
                    866:                name = "";
                    867:        if (NULL == sec)
                    868:                sec = "";
                    869:        if (NULL == dsec)
                    870:                dsec = "";
                    871:        if (NULL == arch)
                    872:                arch = "";
                    873:
                    874:        sform = FORM_NONE;
                    875:        if (NULL != sec && *sec <= '9' && *sec >= '1')
                    876:                sform = FORM_SRC;
                    877:        else if (NULL != sec && *sec == '0') {
                    878:                sec = dsec;
                    879:                sform = FORM_CAT;
                    880:        }
                    881:
                    882:        of = mandoc_calloc(1, sizeof(struct of));
                    883:        strlcpy(of->file, file, MAXPATHLEN);
                    884:        of->name = name;
                    885:        of->sec = sec;
                    886:        of->dsec = dsec;
                    887:        of->arch = arch;
                    888:        of->sform = sform;
                    889:        of->dform = dform;
                    890:        of->next = ofs;
                    891:        ofs = of;
1.3       kristaps  892:
1.50      kristaps  893:        /*
                    894:         * Add to unique identifier hash.
                    895:         * Then if it's a source manual and we're going to use source in
                    896:         * favour of catpages, add it to that hash.
                    897:         */
                    898:        inoadd(st, of);
                    899:        fileadd(of);
                    900: }
1.3       kristaps  901:
1.50      kristaps  902: static void
                    903: offree(void)
                    904: {
                    905:        struct of       *of;
1.3       kristaps  906:
1.50      kristaps  907:        while (NULL != (of = ofs)) {
                    908:                ofs = of->next;
                    909:                free(of);
                    910:        }
                    911: }
1.38      schwarze  912:
1.50      kristaps  913: /*
                    914:  * Run through the files in the global vector "ofs" and add them to the
                    915:  * database specified in "base".
                    916:  *
                    917:  * This handles the parsing scheme itself, using the cues of directory
                    918:  * and filename to determine whether the file is parsable or not.
                    919:  */
                    920: static int
                    921: ofmerge(struct mchars *mc, struct mparse *mp, const char *base)
                    922: {
                    923:        int              form;
                    924:        size_t           sz;
1.3       kristaps  925:        struct mdoc     *mdoc;
                    926:        struct man      *man;
1.50      kristaps  927:        char             buf[MAXPATHLEN];
                    928:        char            *bufp;
                    929:        const char      *msec, *march, *mtitle, *cp;
                    930:        struct of       *of;
                    931:        enum mandoclevel lvl;
                    932:
                    933:        for (of = ofs; NULL != of; of = of->next) {
                    934:                /*
                    935:                 * If we're a catpage (as defined by our path), then see
                    936:                 * if a manpage exists by the same name (ignoring the
                    937:                 * suffix).
                    938:                 * If it does, then we want to use it instead of our
                    939:                 * own.
                    940:                 */
                    941:                if ( ! use_all && FORM_CAT == of->dform) {
                    942:                        sz = strlcpy(buf, of->file, MAXPATHLEN);
                    943:                        if (sz >= MAXPATHLEN) {
                    944:                                WARNING(of->file, base,
                    945:                                        "Filename too long");
                    946:                                continue;
                    947:                        }
                    948:                        bufp = strstr(buf, "cat");
                    949:                        assert(NULL != bufp);
                    950:                        memcpy(bufp, "man", 3);
                    951:                        if (NULL != (bufp = strrchr(buf, '.')))
                    952:                                *++bufp = '\0';
                    953:                        strlcat(buf, of->dsec, MAXPATHLEN);
                    954:                        if (filecheck(buf)) {
                    955:                                WARNING(of->file, base, "Man "
                    956:                                        "source exists: %s", buf);
                    957:                                continue;
                    958:                        }
                    959:                }
                    960:
                    961:                words = NULL;
                    962:                mparse_reset(mp);
                    963:                mdoc = NULL;
                    964:                man = NULL;
                    965:                form = 0;
                    966:                msec = of->dsec;
                    967:                march = of->arch;
                    968:                mtitle = of->name;
1.14      schwarze  969:
                    970:                /*
1.33      schwarze  971:                 * Try interpreting the file as mdoc(7) or man(7)
                    972:                 * source code, unless it is already known to be
                    973:                 * formatted.  Fall back to formatted mode.
1.14      schwarze  974:                 */
1.50      kristaps  975:                if (FORM_SRC == of->dform || FORM_SRC == of->sform) {
                    976:                        lvl = mparse_readfd(mp, -1, of->file);
                    977:                        if (lvl < MANDOCLEVEL_FATAL)
                    978:                                mparse_result(mp, &mdoc, &man);
                    979:                }
1.14      schwarze  980:
                    981:                if (NULL != mdoc) {
1.50      kristaps  982:                        form = 1;
1.14      schwarze  983:                        msec = mdoc_meta(mdoc)->msec;
1.38      schwarze  984:                        march = mdoc_meta(mdoc)->arch;
1.14      schwarze  985:                        mtitle = mdoc_meta(mdoc)->title;
                    986:                } else if (NULL != man) {
1.50      kristaps  987:                        form = 1;
1.14      schwarze  988:                        msec = man_meta(man)->msec;
1.38      schwarze  989:                        march = "";
1.14      schwarze  990:                        mtitle = man_meta(man)->title;
1.50      kristaps  991:                }
                    992:
                    993:                if (NULL == msec)
                    994:                        msec = "";
                    995:                if (NULL == march)
                    996:                        march = "";
                    997:                if (NULL == mtitle)
                    998:                        mtitle = "";
1.1       kristaps  999:
1.12      schwarze 1000:                /*
1.44      kristaps 1001:                 * Check whether the manual section given in a file
                   1002:                 * agrees with the directory where the file is located.
                   1003:                 * Some manuals have suffixes like (3p) on their
                   1004:                 * section number either inside the file or in the
                   1005:                 * directory name, some are linked into more than one
                   1006:                 * section, like encrypt(1) = makekey(8).  Do not skip
                   1007:                 * manuals for such reasons.
1.12      schwarze 1008:                 */
1.50      kristaps 1009:                if ( ! use_all && form && strcasecmp(msec, of->dsec))
                   1010:                        WARNING(of->file, base, "Section \"%s\" "
                   1011:                                "manual in %s directory",
                   1012:                                msec, of->dsec);
1.12      schwarze 1013:
1.42      schwarze 1014:                /*
                   1015:                 * Manual page directories exist for each kernel
                   1016:                 * architecture as returned by machine(1).
                   1017:                 * However, many manuals only depend on the
                   1018:                 * application architecture as returned by arch(1).
                   1019:                 * For example, some (2/ARM) manuals are shared
                   1020:                 * across the "armish" and "zaurus" kernel
                   1021:                 * architectures.
                   1022:                 * A few manuals are even shared across completely
                   1023:                 * different architectures, for example fdformat(1)
                   1024:                 * on amd64, i386, sparc, and sparc64.
                   1025:                 * Thus, warn about architecture mismatches,
                   1026:                 * but don't skip manuals for this reason.
                   1027:                 */
1.50      kristaps 1028:                if ( ! use_all && strcasecmp(march, of->arch))
                   1029:                        WARNING(of->file, base, "Architecture \"%s\" "
1.47      schwarze 1030:                                "manual in \"%s\" directory",
1.45      kristaps 1031:                                march, of->arch);
1.12      schwarze 1032:
1.50      kristaps 1033:                putkey(of, of->name, TYPE_Nm);
1.12      schwarze 1034:
1.50      kristaps 1035:                if (NULL != mdoc) {
                   1036:                        if (NULL != (cp = mdoc_meta(mdoc)->name))
                   1037:                                putkey(of, cp, TYPE_Nm);
                   1038:                        parse_mdoc(of, mdoc_node(mdoc));
                   1039:                } else if (NULL != man)
                   1040:                        parse_man(of, man_node(man));
                   1041:                else
                   1042:                        parse_catpage(of, base);
1.44      kristaps 1043:
1.50      kristaps 1044:                dbindex(mc, form, of, base);
                   1045:        }
1.44      kristaps 1046:
1.50      kristaps 1047:        return(1);
                   1048: }
1.12      schwarze 1049:
1.50      kristaps 1050: static void
                   1051: parse_catpage(struct of *of, const char *base)
                   1052: {
                   1053:        FILE            *stream;
                   1054:        char            *line, *p, *title;
                   1055:        size_t           len, plen, titlesz;
1.12      schwarze 1056:
1.50      kristaps 1057:        if (NULL == (stream = fopen(of->file, "r"))) {
                   1058:                WARNING(of->file, base, "%s", strerror(errno));
                   1059:                return;
                   1060:        }
1.1       kristaps 1061:
1.50      kristaps 1062:        /* Skip to first blank line. */
1.1       kristaps 1063:
1.50      kristaps 1064:        while (NULL != (line = fgetln(stream, &len)))
                   1065:                if ('\n' == *line)
                   1066:                        break;
1.1       kristaps 1067:
1.50      kristaps 1068:        /*
                   1069:         * Assume the first line that is not indented
                   1070:         * is the first section header.  Skip to it.
                   1071:         */
1.1       kristaps 1072:
1.50      kristaps 1073:        while (NULL != (line = fgetln(stream, &len)))
                   1074:                if ('\n' != *line && ' ' != *line)
                   1075:                        break;
                   1076:
                   1077:        /*
                   1078:         * Read up until the next section into a buffer.
                   1079:         * Strip the leading and trailing newline from each read line,
                   1080:         * appending a trailing space.
                   1081:         * Ignore empty (whitespace-only) lines.
                   1082:         */
1.1       kristaps 1083:
1.50      kristaps 1084:        titlesz = 0;
                   1085:        title = NULL;
1.38      schwarze 1086:
1.50      kristaps 1087:        while (NULL != (line = fgetln(stream, &len))) {
                   1088:                if (' ' != *line || '\n' != line[len - 1])
                   1089:                        break;
                   1090:                while (len > 0 && isspace((unsigned char)*line)) {
                   1091:                        line++;
                   1092:                        len--;
                   1093:                }
                   1094:                if (1 == len)
1.38      schwarze 1095:                        continue;
1.50      kristaps 1096:                title = mandoc_realloc(title, titlesz + len);
                   1097:                memcpy(title + titlesz, line, len);
                   1098:                titlesz += len;
                   1099:                title[titlesz - 1] = ' ';
                   1100:        }
1.38      schwarze 1101:
1.50      kristaps 1102:        /*
                   1103:         * If no page content can be found, or the input line
                   1104:         * is already the next section header, or there is no
                   1105:         * trailing newline, reuse the page title as the page
                   1106:         * description.
                   1107:         */
1.44      kristaps 1108:
1.50      kristaps 1109:        if (NULL == title || '\0' == *title) {
                   1110:                WARNING(of->file, base, "Cannot find NAME section");
                   1111:                fclose(stream);
                   1112:                free(title);
                   1113:                return;
                   1114:        }
1.1       kristaps 1115:
1.50      kristaps 1116:        title = mandoc_realloc(title, titlesz + 1);
                   1117:        title[titlesz] = '\0';
1.33      schwarze 1118:
1.50      kristaps 1119:        /*
                   1120:         * Skip to the first dash.
                   1121:         * Use the remaining line as the description (no more than 70
                   1122:         * bytes).
                   1123:         */
1.33      schwarze 1124:
1.50      kristaps 1125:        if (NULL != (p = strstr(title, "- "))) {
                   1126:                for (p += 2; ' ' == *p || '\b' == *p; p++)
                   1127:                        /* Skip to next word. */ ;
                   1128:        } else {
                   1129:                WARNING(of->file, base, "No dash in title line");
                   1130:                p = title;
                   1131:        }
1.38      schwarze 1132:
1.50      kristaps 1133:        plen = strlen(p);
1.1       kristaps 1134:
1.50      kristaps 1135:        /* Strip backspace-encoding from line. */
1.1       kristaps 1136:
1.50      kristaps 1137:        while (NULL != (line = memchr(p, '\b', plen))) {
                   1138:                len = line - p;
                   1139:                if (0 == len) {
                   1140:                        memmove(line, line + 1, plen--);
                   1141:                        continue;
                   1142:                }
                   1143:                memmove(line - 1, line + 1, plen - len);
                   1144:                plen -= 2;
                   1145:        }
1.1       kristaps 1146:
1.50      kristaps 1147:        of->desc = stradd(p);
                   1148:        putkey(of, p, TYPE_Nd);
                   1149:        fclose(stream);
                   1150:        free(title);
                   1151: }
1.1       kristaps 1152:
1.50      kristaps 1153: /*
                   1154:  * Put a type/word pair into the word database for this particular file.
                   1155:  */
                   1156: static void
                   1157: putkey(const struct of *of, const char *value, uint64_t type)
                   1158: {
1.18      kristaps 1159:
1.50      kristaps 1160:        assert(NULL != value);
                   1161:        wordaddbuf(of, value, strlen(value), type);
                   1162: }
1.44      kristaps 1163:
1.50      kristaps 1164: /*
                   1165:  * Like putkey() but for unterminated strings.
                   1166:  */
                   1167: static void
                   1168: putkeys(const struct of *of, const char *value, int sz, uint64_t type)
                   1169: {
1.44      kristaps 1170:
1.50      kristaps 1171:        wordaddbuf(of, value, sz, type);
1.3       kristaps 1172: }
                   1173:
                   1174: /*
1.50      kristaps 1175:  * Grok all nodes at or below a certain mdoc node into putkey().
1.3       kristaps 1176:  */
                   1177: static void
1.50      kristaps 1178: putmdockey(const struct of *of, const struct mdoc_node *n, uint64_t m)
1.3       kristaps 1179: {
1.18      kristaps 1180:
1.50      kristaps 1181:        for ( ; NULL != n; n = n->next) {
                   1182:                if (NULL != n->child)
                   1183:                        putmdockey(of, n->child, m);
                   1184:                if (MDOC_TEXT == n->type)
                   1185:                        putkey(of, n->string, m);
                   1186:        }
                   1187: }
1.18      kristaps 1188:
1.50      kristaps 1189: static int
                   1190: parse_man(struct of *of, const struct man_node *n)
                   1191: {
                   1192:        const struct man_node *head, *body;
                   1193:        char            *start, *sv, *title;
                   1194:        char             byte;
                   1195:        size_t           sz, titlesz;
1.18      kristaps 1196:
1.50      kristaps 1197:        if (NULL == n)
                   1198:                return(0);
1.18      kristaps 1199:
1.50      kristaps 1200:        /*
                   1201:         * We're only searching for one thing: the first text child in
                   1202:         * the BODY of a NAME section.  Since we don't keep track of
                   1203:         * sections in -man, run some hoops to find out whether we're in
                   1204:         * the correct section or not.
                   1205:         */
1.18      kristaps 1206:
1.50      kristaps 1207:        if (MAN_BODY == n->type && MAN_SH == n->tok) {
                   1208:                body = n;
                   1209:                assert(body->parent);
                   1210:                if (NULL != (head = body->parent->head) &&
                   1211:                                1 == head->nchild &&
                   1212:                                NULL != (head = (head->child)) &&
                   1213:                                MAN_TEXT == head->type &&
                   1214:                                0 == strcmp(head->string, "NAME") &&
                   1215:                                NULL != (body = body->child) &&
                   1216:                                MAN_TEXT == body->type) {
1.3       kristaps 1217:
1.50      kristaps 1218:                        title = NULL;
                   1219:                        titlesz = 0;
1.3       kristaps 1220:
1.50      kristaps 1221:                        /*
                   1222:                         * Suck the entire NAME section into memory.
                   1223:                         * Yes, we might run away.
                   1224:                         * But too many manuals have big, spread-out
                   1225:                         * NAME sections over many lines.
                   1226:                         */
1.3       kristaps 1227:
1.50      kristaps 1228:                        for ( ; NULL != body; body = body->next) {
                   1229:                                if (MAN_TEXT != body->type)
                   1230:                                        break;
                   1231:                                if (0 == (sz = strlen(body->string)))
                   1232:                                        continue;
                   1233:                                title = mandoc_realloc
                   1234:                                        (title, titlesz + sz + 1);
                   1235:                                memcpy(title + titlesz, body->string, sz);
                   1236:                                titlesz += sz + 1;
                   1237:                                title[titlesz - 1] = ' ';
                   1238:                        }
                   1239:                        if (NULL == title)
                   1240:                                return(1);
1.18      kristaps 1241:
1.50      kristaps 1242:                        title = mandoc_realloc(title, titlesz + 1);
                   1243:                        title[titlesz] = '\0';
1.18      kristaps 1244:
1.50      kristaps 1245:                        /* Skip leading space.  */
1.18      kristaps 1246:
1.50      kristaps 1247:                        sv = title;
                   1248:                        while (isspace((unsigned char)*sv))
                   1249:                                sv++;
1.18      kristaps 1250:
1.50      kristaps 1251:                        if (0 == (sz = strlen(sv))) {
                   1252:                                free(title);
                   1253:                                return(1);
                   1254:                        }
1.1       kristaps 1255:
1.50      kristaps 1256:                        /* Erase trailing space. */
1.1       kristaps 1257:
1.50      kristaps 1258:                        start = &sv[sz - 1];
                   1259:                        while (start > sv && isspace((unsigned char)*start))
                   1260:                                *start-- = '\0';
1.1       kristaps 1261:
1.50      kristaps 1262:                        if (start == sv) {
                   1263:                                free(title);
                   1264:                                return(1);
                   1265:                        }
1.1       kristaps 1266:
1.50      kristaps 1267:                        start = sv;
1.18      kristaps 1268:
1.50      kristaps 1269:                        /*
                   1270:                         * Go through a special heuristic dance here.
                   1271:                         * Conventionally, one or more manual names are
                   1272:                         * comma-specified prior to a whitespace, then a
                   1273:                         * dash, then a description.  Try to puzzle out
                   1274:                         * the name parts here.
                   1275:                         */
1.18      kristaps 1276:
1.50      kristaps 1277:                        for ( ;; ) {
                   1278:                                sz = strcspn(start, " ,");
                   1279:                                if ('\0' == start[sz])
                   1280:                                        break;
1.1       kristaps 1281:
1.50      kristaps 1282:                                byte = start[sz];
                   1283:                                start[sz] = '\0';
1.1       kristaps 1284:
1.50      kristaps 1285:                                putkey(of, start, TYPE_Nm);
1.1       kristaps 1286:
1.50      kristaps 1287:                                if (' ' == byte) {
                   1288:                                        start += sz + 1;
                   1289:                                        break;
                   1290:                                }
1.1       kristaps 1291:
1.50      kristaps 1292:                                assert(',' == byte);
                   1293:                                start += sz + 1;
                   1294:                                while (' ' == *start)
                   1295:                                        start++;
                   1296:                        }
1.1       kristaps 1297:
1.50      kristaps 1298:                        if (sv == start) {
                   1299:                                putkey(of, start, TYPE_Nm);
                   1300:                                free(title);
                   1301:                                return(1);
                   1302:                        }
1.1       kristaps 1303:
1.50      kristaps 1304:                        while (isspace((unsigned char)*start))
                   1305:                                start++;
1.1       kristaps 1306:
1.50      kristaps 1307:                        if (0 == strncmp(start, "-", 1))
                   1308:                                start += 1;
                   1309:                        else if (0 == strncmp(start, "\\-\\-", 4))
                   1310:                                start += 4;
                   1311:                        else if (0 == strncmp(start, "\\-", 2))
                   1312:                                start += 2;
                   1313:                        else if (0 == strncmp(start, "\\(en", 4))
                   1314:                                start += 4;
                   1315:                        else if (0 == strncmp(start, "\\(em", 4))
                   1316:                                start += 4;
1.1       kristaps 1317:
1.50      kristaps 1318:                        while (' ' == *start)
                   1319:                                start++;
1.1       kristaps 1320:
1.50      kristaps 1321:                        assert(NULL == of->desc);
                   1322:                        of->desc = stradd(start);
                   1323:                        putkey(of, start, TYPE_Nd);
                   1324:                        free(title);
                   1325:                        return(1);
                   1326:                }
                   1327:        }
1.1       kristaps 1328:
1.50      kristaps 1329:        for (n = n->child; n; n = n->next)
                   1330:                if (parse_man(of, n))
                   1331:                        return(1);
1.1       kristaps 1332:
1.50      kristaps 1333:        return(0);
1.1       kristaps 1334: }
                   1335:
                   1336: static void
1.50      kristaps 1337: parse_mdoc(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1338: {
                   1339:
1.50      kristaps 1340:        assert(NULL != n);
                   1341:        for (n = n->child; NULL != n; n = n->next) {
                   1342:                switch (n->type) {
                   1343:                case (MDOC_ELEM):
                   1344:                        /* FALLTHROUGH */
                   1345:                case (MDOC_BLOCK):
                   1346:                        /* FALLTHROUGH */
                   1347:                case (MDOC_HEAD):
                   1348:                        /* FALLTHROUGH */
                   1349:                case (MDOC_BODY):
                   1350:                        /* FALLTHROUGH */
                   1351:                case (MDOC_TAIL):
                   1352:                        if (NULL != mdocs[n->tok].fp)
                   1353:                               if (0 == (*mdocs[n->tok].fp)(of, n))
                   1354:                                       break;
1.1       kristaps 1355:
1.50      kristaps 1356:                        if (MDOCF_CHILD & mdocs[n->tok].flags)
                   1357:                                putmdockey(of, n->child, mdocs[n->tok].mask);
                   1358:                        break;
                   1359:                default:
                   1360:                        assert(MDOC_ROOT != n->type);
                   1361:                        continue;
                   1362:                }
                   1363:                if (NULL != n->child)
                   1364:                        parse_mdoc(of, n);
1.1       kristaps 1365:        }
                   1366: }
                   1367:
1.25      schwarze 1368: static int
1.50      kristaps 1369: parse_mdoc_Fd(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1370: {
                   1371:        const char      *start, *end;
                   1372:        size_t           sz;
1.25      schwarze 1373:
1.50      kristaps 1374:        if (SEC_SYNOPSIS != n->sec ||
                   1375:                        NULL == (n = n->child) ||
                   1376:                        MDOC_TEXT != n->type)
1.25      schwarze 1377:                return(0);
1.1       kristaps 1378:
                   1379:        /*
                   1380:         * Only consider those `Fd' macro fields that begin with an
                   1381:         * "inclusion" token (versus, e.g., #define).
                   1382:         */
1.50      kristaps 1383:
1.1       kristaps 1384:        if (strcmp("#include", n->string))
1.25      schwarze 1385:                return(0);
1.1       kristaps 1386:
                   1387:        if (NULL == (n = n->next) || MDOC_TEXT != n->type)
1.25      schwarze 1388:                return(0);
1.1       kristaps 1389:
                   1390:        /*
                   1391:         * Strip away the enclosing angle brackets and make sure we're
                   1392:         * not zero-length.
                   1393:         */
                   1394:
                   1395:        start = n->string;
                   1396:        if ('<' == *start || '"' == *start)
                   1397:                start++;
                   1398:
                   1399:        if (0 == (sz = strlen(start)))
1.25      schwarze 1400:                return(0);
1.1       kristaps 1401:
                   1402:        end = &start[(int)sz - 1];
                   1403:        if ('>' == *end || '"' == *end)
                   1404:                end--;
                   1405:
1.50      kristaps 1406:        if (end > start)
                   1407:                putkeys(of, start, end - start + 1, TYPE_In);
1.25      schwarze 1408:        return(1);
1.1       kristaps 1409: }
                   1410:
1.25      schwarze 1411: static int
1.50      kristaps 1412: parse_mdoc_In(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1413: {
                   1414:
1.50      kristaps 1415:        if (NULL != n->child && MDOC_TEXT == n->child->type)
1.25      schwarze 1416:                return(0);
1.1       kristaps 1417:
1.50      kristaps 1418:        putkey(of, n->child->string, TYPE_In);
1.25      schwarze 1419:        return(1);
1.1       kristaps 1420: }
                   1421:
1.25      schwarze 1422: static int
1.50      kristaps 1423: parse_mdoc_Fn(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1424: {
                   1425:        const char      *cp;
                   1426:
1.50      kristaps 1427:        if (NULL == (n = n->child) || MDOC_TEXT != n->type)
1.25      schwarze 1428:                return(0);
                   1429:
1.50      kristaps 1430:        /*
                   1431:         * Parse: .Fn "struct type *name" "char *arg".
                   1432:         * First strip away pointer symbol.
                   1433:         * Then store the function name, then type.
                   1434:         * Finally, store the arguments.
                   1435:         */
1.1       kristaps 1436:
1.50      kristaps 1437:        if (NULL == (cp = strrchr(n->string, ' ')))
                   1438:                cp = n->string;
1.1       kristaps 1439:
                   1440:        while ('*' == *cp)
                   1441:                cp++;
                   1442:
1.50      kristaps 1443:        putkey(of, cp, TYPE_Fn);
1.25      schwarze 1444:
1.50      kristaps 1445:        if (n->string < cp)
                   1446:                putkeys(of, n->string, cp - n->string, TYPE_Ft);
1.25      schwarze 1447:
1.50      kristaps 1448:        for (n = n->next; NULL != n; n = n->next)
                   1449:                if (MDOC_TEXT == n->type)
                   1450:                        putkey(of, n->string, TYPE_Fa);
1.25      schwarze 1451:
                   1452:        return(0);
1.1       kristaps 1453: }
                   1454:
1.25      schwarze 1455: static int
1.50      kristaps 1456: parse_mdoc_St(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1457: {
1.25      schwarze 1458:
1.1       kristaps 1459:        if (NULL == n->child || MDOC_TEXT != n->child->type)
1.25      schwarze 1460:                return(0);
1.1       kristaps 1461:
1.50      kristaps 1462:        putkey(of, n->child->string, TYPE_St);
1.25      schwarze 1463:        return(1);
1.1       kristaps 1464: }
                   1465:
1.25      schwarze 1466: static int
1.50      kristaps 1467: parse_mdoc_Xr(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1468: {
                   1469:
                   1470:        if (NULL == (n = n->child))
1.25      schwarze 1471:                return(0);
1.1       kristaps 1472:
1.50      kristaps 1473:        putkey(of, n->string, TYPE_Xr);
1.25      schwarze 1474:        return(1);
1.1       kristaps 1475: }
                   1476:
1.25      schwarze 1477: static int
1.50      kristaps 1478: parse_mdoc_Nd(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1479: {
1.50      kristaps 1480:        size_t           sz;
                   1481:        char            *sv, *desc;
1.1       kristaps 1482:
                   1483:        if (MDOC_BODY != n->type)
1.25      schwarze 1484:                return(0);
1.1       kristaps 1485:
1.50      kristaps 1486:        /*
                   1487:         * Special-case the `Nd' because we need to put the description
                   1488:         * into the document table.
                   1489:         */
                   1490:
                   1491:        desc = NULL;
                   1492:        for (n = n->child; NULL != n; n = n->next) {
                   1493:                if (MDOC_TEXT == n->type) {
                   1494:                        sz = strlen(n->string) + 1;
                   1495:                        if (NULL != (sv = desc))
                   1496:                                sz += strlen(desc) + 1;
                   1497:                        desc = mandoc_realloc(desc, sz);
                   1498:                        if (NULL != sv)
                   1499:                                strlcat(desc, " ", sz);
                   1500:                        else
                   1501:                                *desc = '\0';
                   1502:                        strlcat(desc, n->string, sz);
                   1503:                }
                   1504:                if (NULL != n->child)
                   1505:                        parse_mdoc_Nd(of, n);
                   1506:        }
                   1507:
                   1508:        of->desc = NULL != desc ? stradd(desc) : NULL;
                   1509:        free(desc);
1.25      schwarze 1510:        return(1);
1.1       kristaps 1511: }
                   1512:
1.25      schwarze 1513: static int
1.50      kristaps 1514: parse_mdoc_Nm(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1515: {
                   1516:
1.25      schwarze 1517:        if (SEC_NAME == n->sec)
                   1518:                return(1);
                   1519:        else if (SEC_SYNOPSIS != n->sec || MDOC_HEAD != n->type)
                   1520:                return(0);
1.1       kristaps 1521:
1.25      schwarze 1522:        return(1);
1.1       kristaps 1523: }
                   1524:
1.25      schwarze 1525: static int
1.50      kristaps 1526: parse_mdoc_Sh(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1527: {
                   1528:
1.25      schwarze 1529:        return(SEC_CUSTOM == n->sec && MDOC_HEAD == n->type);
1.1       kristaps 1530: }
                   1531:
1.50      kristaps 1532: static int
                   1533: parse_mdoc_head(struct of *of, const struct mdoc_node *n)
1.1       kristaps 1534: {
                   1535:
1.50      kristaps 1536:        return(MDOC_HEAD == n->type);
                   1537: }
1.1       kristaps 1538:
1.50      kristaps 1539: static int
                   1540: parse_mdoc_body(struct of *of, const struct mdoc_node *n)
                   1541: {
1.1       kristaps 1542:
1.50      kristaps 1543:        return(MDOC_BODY == n->type);
1.1       kristaps 1544: }
                   1545:
1.50      kristaps 1546: /*
                   1547:  * See straddbuf().
                   1548:  */
                   1549: static char *
                   1550: stradd(const char *cp)
1.1       kristaps 1551: {
                   1552:
1.50      kristaps 1553:        return(straddbuf(cp, strlen(cp)));
1.1       kristaps 1554: }
                   1555:
                   1556: /*
1.50      kristaps 1557:  * This looks up or adds a string to the string table.
                   1558:  * The string table is a table of all strings encountered during parse
                   1559:  * or file scan.
                   1560:  * In using it, we avoid having thousands of (e.g.) "cat1" string
                   1561:  * allocations for the "of" table.
                   1562:  * We also have a layer atop the string table for keeping track of words
                   1563:  * in a parse sequence (see wordaddbuf()).
1.1       kristaps 1564:  */
1.50      kristaps 1565: static char *
                   1566: straddbuf(const char *cp, size_t sz)
1.1       kristaps 1567: {
1.50      kristaps 1568:        struct str      *s;
                   1569:        unsigned int     index;
                   1570:        const char      *end;
                   1571:
                   1572:        if (NULL != (s = hashget(cp, sz)))
                   1573:                return(s->key);
1.1       kristaps 1574:
1.51      kristaps 1575:        s = mandoc_calloc(sizeof(struct str) + sz + 1, 1);
1.50      kristaps 1576:        memcpy(s->key, cp, sz);
1.1       kristaps 1577:
1.50      kristaps 1578:        end = cp + sz;
                   1579:        index = ohash_qlookupi(&strings, cp, &end);
                   1580:        assert(NULL == ohash_find(&strings, index));
                   1581:        ohash_insert(&strings, index, s);
                   1582:        return(s->key);
                   1583: }
1.25      schwarze 1584:
1.50      kristaps 1585: static struct str *
                   1586: hashget(const char *cp, size_t sz)
                   1587: {
                   1588:        unsigned int     index;
                   1589:        const char      *end;
1.25      schwarze 1590:
1.50      kristaps 1591:        end = cp + sz;
                   1592:        index = ohash_qlookupi(&strings, cp, &end);
                   1593:        return(ohash_find(&strings, index));
                   1594: }
1.1       kristaps 1595:
1.50      kristaps 1596: /*
                   1597:  * Add a word to the current parse sequence.
                   1598:  * Within the hashtable of strings, we maintain a list of strings that
                   1599:  * are currently indexed.
                   1600:  * Each of these ("words") has a bitmask modified within the parse.
                   1601:  * When we finish a parse, we'll dump the list, then remove the head
                   1602:  * entry -- since the next parse will have a new "of", it can keep track
                   1603:  * of its entries without conflict.
                   1604:  */
                   1605: static void
                   1606: wordaddbuf(const struct of *of,
                   1607:                const char *cp, size_t sz, uint64_t v)
                   1608: {
                   1609:        struct str      *s;
                   1610:        unsigned int     index;
                   1611:        const char      *end;
1.25      schwarze 1612:
1.50      kristaps 1613:        if (0 == sz)
                   1614:                return;
1.25      schwarze 1615:
1.50      kristaps 1616:        s = hashget(cp, sz);
1.25      schwarze 1617:
1.50      kristaps 1618:        if (NULL != s && of == s->of) {
                   1619:                s->mask |= v;
                   1620:                return;
                   1621:        } else if (NULL == s) {
1.51      kristaps 1622:                s = mandoc_calloc(sizeof(struct str) + sz + 1, 1);
1.50      kristaps 1623:                memcpy(s->key, cp, sz);
                   1624:                end = cp + sz;
                   1625:                index = ohash_qlookupi(&strings, cp, &end);
                   1626:                assert(NULL == ohash_find(&strings, index));
                   1627:                ohash_insert(&strings, index, s);
1.1       kristaps 1628:        }
                   1629:
1.50      kristaps 1630:        s->next = words;
                   1631:        s->of = of;
                   1632:        s->mask = v;
                   1633:        words = s;
1.1       kristaps 1634: }
                   1635:
1.50      kristaps 1636: /*
                   1637:  * Take a Unicode codepoint and produce its UTF-8 encoding.
                   1638:  * This isn't the best way to do this, but it works.
                   1639:  * The magic numbers are from the UTF-8 packaging.
                   1640:  * They're not as scary as they seem: read the UTF-8 spec for details.
                   1641:  */
                   1642: static size_t
                   1643: utf8(unsigned int cp, char out[7])
1.1       kristaps 1644: {
1.50      kristaps 1645:        size_t           rc;
1.1       kristaps 1646:
1.50      kristaps 1647:        rc = 0;
                   1648:        if (cp <= 0x0000007F) {
                   1649:                rc = 1;
                   1650:                out[0] = (char)cp;
                   1651:        } else if (cp <= 0x000007FF) {
                   1652:                rc = 2;
                   1653:                out[0] = (cp >> 6  & 31) | 192;
                   1654:                out[1] = (cp       & 63) | 128;
                   1655:        } else if (cp <= 0x0000FFFF) {
                   1656:                rc = 3;
                   1657:                out[0] = (cp >> 12 & 15) | 224;
                   1658:                out[1] = (cp >> 6  & 63) | 128;
                   1659:                out[2] = (cp       & 63) | 128;
                   1660:        } else if (cp <= 0x001FFFFF) {
                   1661:                rc = 4;
                   1662:                out[0] = (cp >> 18 &  7) | 240;
                   1663:                out[1] = (cp >> 12 & 63) | 128;
                   1664:                out[2] = (cp >> 6  & 63) | 128;
                   1665:                out[3] = (cp       & 63) | 128;
                   1666:        } else if (cp <= 0x03FFFFFF) {
                   1667:                rc = 5;
                   1668:                out[0] = (cp >> 24 &  3) | 248;
                   1669:                out[1] = (cp >> 18 & 63) | 128;
                   1670:                out[2] = (cp >> 12 & 63) | 128;
                   1671:                out[3] = (cp >> 6  & 63) | 128;
                   1672:                out[4] = (cp       & 63) | 128;
                   1673:        } else if (cp <= 0x7FFFFFFF) {
                   1674:                rc = 6;
                   1675:                out[0] = (cp >> 30 &  1) | 252;
                   1676:                out[1] = (cp >> 24 & 63) | 128;
                   1677:                out[2] = (cp >> 18 & 63) | 128;
                   1678:                out[3] = (cp >> 12 & 63) | 128;
                   1679:                out[4] = (cp >> 6  & 63) | 128;
                   1680:                out[5] = (cp       & 63) | 128;
                   1681:        } else
1.1       kristaps 1682:                return(0);
                   1683:
1.50      kristaps 1684:        out[rc] = '\0';
                   1685:        return(rc);
                   1686: }
1.1       kristaps 1687:
1.50      kristaps 1688: /*
                   1689:  * Store the UTF-8 version of a key, or alias the pointer if the key has
                   1690:  * no UTF-8 transcription marks in it.
                   1691:  */
                   1692: static void
                   1693: utf8key(struct mchars *mc, struct str *key)
                   1694: {
                   1695:        size_t           sz, bsz, pos;
                   1696:        char             utfbuf[7], res[5];
                   1697:        char            *buf;
                   1698:        const char      *seq, *cpp, *val;
                   1699:        int              len, u;
                   1700:        enum mandoc_esc  esc;
                   1701:
                   1702:        assert(NULL == key->utf8);
                   1703:
                   1704:        res[0] = '\\';
                   1705:        res[1] = '\t';
                   1706:        res[2] = ASCII_NBRSP;
                   1707:        res[3] = ASCII_HYPH;
                   1708:        res[4] = '\0';
1.1       kristaps 1709:
1.50      kristaps 1710:        val = key->key;
                   1711:        bsz = strlen(val);
1.46      kristaps 1712:
1.50      kristaps 1713:        /*
                   1714:         * Pre-check: if we have no stop-characters, then set the
                   1715:         * pointer as ourselvse and get out of here.
                   1716:         */
                   1717:        if (strcspn(val, res) == bsz) {
                   1718:                key->utf8 = key->key;
                   1719:                return;
                   1720:        }
1.46      kristaps 1721:
1.50      kristaps 1722:        /* Pre-allocate by the length of the input */
1.46      kristaps 1723:
1.50      kristaps 1724:        buf = mandoc_malloc(++bsz);
                   1725:        pos = 0;
1.46      kristaps 1726:
1.50      kristaps 1727:        while ('\0' != *val) {
                   1728:                /*
                   1729:                 * Halt on the first escape sequence.
                   1730:                 * This also halts on the end of string, in which case
                   1731:                 * we just copy, fallthrough, and exit the loop.
                   1732:                 */
                   1733:                if ((sz = strcspn(val, res)) > 0) {
                   1734:                        memcpy(&buf[pos], val, sz);
                   1735:                        pos += sz;
                   1736:                        val += sz;
                   1737:                }
1.46      kristaps 1738:
1.50      kristaps 1739:                if (ASCII_HYPH == *val) {
                   1740:                        buf[pos++] = '-';
                   1741:                        val++;
                   1742:                        continue;
                   1743:                } else if ('\t' == *val || ASCII_NBRSP == *val) {
                   1744:                        buf[pos++] = ' ';
                   1745:                        val++;
                   1746:                        continue;
                   1747:                } else if ('\\' != *val)
                   1748:                        break;
1.46      kristaps 1749:
1.50      kristaps 1750:                /* Read past the slash. */
1.46      kristaps 1751:
1.50      kristaps 1752:                val++;
                   1753:                u = 0;
1.46      kristaps 1754:
1.50      kristaps 1755:                /*
                   1756:                 * Parse the escape sequence and see if it's a
                   1757:                 * predefined character or special character.
                   1758:                 */
                   1759:                esc = mandoc_escape
                   1760:                        ((const char **)&val, &seq, &len);
                   1761:                if (ESCAPE_ERROR == esc)
                   1762:                        break;
1.1       kristaps 1763:
1.50      kristaps 1764:                if (ESCAPE_SPECIAL != esc)
                   1765:                        continue;
                   1766:                if (0 == (u = mchars_spec2cp(mc, seq, len)))
                   1767:                        continue;
1.1       kristaps 1768:
1.50      kristaps 1769:                /*
                   1770:                 * If we have a Unicode codepoint, try to convert that
                   1771:                 * to a UTF-8 byte string.
                   1772:                 */
                   1773:                cpp = utfbuf;
                   1774:                if (0 == (sz = utf8(u, utfbuf)))
                   1775:                        continue;
1.1       kristaps 1776:
1.50      kristaps 1777:                /* Copy the rendered glyph into the stream. */
1.1       kristaps 1778:
1.50      kristaps 1779:                sz = strlen(cpp);
                   1780:                bsz += sz;
1.1       kristaps 1781:
1.50      kristaps 1782:                buf = mandoc_realloc(buf, bsz);
1.1       kristaps 1783:
1.50      kristaps 1784:                memcpy(&buf[pos], cpp, sz);
                   1785:                pos += sz;
1.1       kristaps 1786:        }
                   1787:
1.50      kristaps 1788:        buf[pos] = '\0';
                   1789:        key->utf8 = buf;
1.1       kristaps 1790: }
                   1791:
1.14      schwarze 1792: /*
1.50      kristaps 1793:  * Flush the current page's terms (and their bits) into the database.
                   1794:  * Wrap the entire set of additions in a transaction to make sqlite be a
                   1795:  * little faster.
                   1796:  * Also, UTF-8-encode the description at the last possible moment.
1.14      schwarze 1797:  */
                   1798: static void
1.50      kristaps 1799: dbindex(struct mchars *mc, int form,
                   1800:                const struct of *of, const char *base)
1.14      schwarze 1801: {
1.50      kristaps 1802:        struct str      *key;
                   1803:        const char      *desc;
                   1804:        int64_t          recno;
1.52      kristaps 1805:        size_t           i;
1.14      schwarze 1806:
1.50      kristaps 1807:        DEBUG(of->file, base, "Adding to index");
1.43      kristaps 1808:
1.50      kristaps 1809:        if (nodb)
1.14      schwarze 1810:                return;
1.28      kristaps 1811:
1.50      kristaps 1812:        desc = "";
                   1813:        if (NULL != of->desc) {
                   1814:                key = hashget(of->desc, strlen(of->desc));
                   1815:                assert(NULL != key);
                   1816:                if (NULL == key->utf8)
                   1817:                        utf8key(mc, key);
                   1818:                desc = key->utf8;
                   1819:        }
                   1820:
1.52      kristaps 1821:        SQL_EXEC("BEGIN TRANSACTION");
1.50      kristaps 1822:
1.52      kristaps 1823:        i = 1;
                   1824:        SQL_BIND_TEXT(stmts[STMT_INSERT_DOC], i, of->file);
                   1825:        SQL_BIND_TEXT(stmts[STMT_INSERT_DOC], i, of->sec);
                   1826:        SQL_BIND_TEXT(stmts[STMT_INSERT_DOC], i, of->arch);
                   1827:        SQL_BIND_TEXT(stmts[STMT_INSERT_DOC], i, desc);
                   1828:        SQL_BIND_INT(stmts[STMT_INSERT_DOC], i, form);
                   1829:        SQL_STEP(stmts[STMT_INSERT_DOC]);
1.50      kristaps 1830:        recno = sqlite3_last_insert_rowid(db);
                   1831:        sqlite3_reset(stmts[STMT_INSERT_DOC]);
                   1832:
                   1833:        for (key = words; NULL != key; key = key->next) {
                   1834:                assert(key->of == of);
                   1835:                if (NULL == key->utf8)
                   1836:                        utf8key(mc, key);
1.52      kristaps 1837:                i = 1;
                   1838:                SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, key->mask);
                   1839:                SQL_BIND_TEXT(stmts[STMT_INSERT_KEY], i, key->utf8);
                   1840:                SQL_BIND_INT64(stmts[STMT_INSERT_KEY], i, recno);
                   1841:                SQL_STEP(stmts[STMT_INSERT_KEY]);
1.50      kristaps 1842:                sqlite3_reset(stmts[STMT_INSERT_KEY]);
1.38      schwarze 1843:        }
1.28      kristaps 1844:
1.52      kristaps 1845:        SQL_EXEC("END TRANSACTION");
1.14      schwarze 1846: }
                   1847:
1.5       kristaps 1848: static void
1.50      kristaps 1849: dbprune(const char *base)
1.5       kristaps 1850: {
1.50      kristaps 1851:        struct of       *of;
1.52      kristaps 1852:        size_t           i;
1.5       kristaps 1853:
1.50      kristaps 1854:        if (nodb)
                   1855:                return;
1.12      schwarze 1856:
1.50      kristaps 1857:        for (of = ofs; NULL != of; of = of->next) {
1.52      kristaps 1858:                i = 1;
                   1859:                SQL_BIND_TEXT(stmts[STMT_DELETE], i, of->file);
                   1860:                SQL_STEP(stmts[STMT_DELETE]);
1.50      kristaps 1861:                sqlite3_reset(stmts[STMT_DELETE]);
                   1862:                DEBUG(of->file, base, "Deleted from index");
1.5       kristaps 1863:        }
                   1864: }
                   1865:
1.4       kristaps 1866: /*
1.50      kristaps 1867:  * Close an existing database and its prepared statements.
                   1868:  * If "real" is not set, rename the temporary file into the real one.
1.4       kristaps 1869:  */
1.35      kristaps 1870: static void
1.50      kristaps 1871: dbclose(const char *base, int real)
1.4       kristaps 1872: {
1.50      kristaps 1873:        size_t           i;
                   1874:        char             file[MAXPATHLEN];
1.4       kristaps 1875:
1.50      kristaps 1876:        if (nodb)
1.38      schwarze 1877:                return;
1.50      kristaps 1878:
                   1879:        for (i = 0; i < STMT__MAX; i++) {
                   1880:                sqlite3_finalize(stmts[i]);
                   1881:                stmts[i] = NULL;
1.4       kristaps 1882:        }
                   1883:
1.50      kristaps 1884:        sqlite3_close(db);
                   1885:        db = NULL;
1.12      schwarze 1886:
1.50      kristaps 1887:        if (real)
                   1888:                return;
1.12      schwarze 1889:
1.50      kristaps 1890:        strlcpy(file, MANDOC_DB, MAXPATHLEN);
                   1891:        strlcat(file, "~", MAXPATHLEN);
                   1892:        if (-1 == rename(file, MANDOC_DB))
                   1893:                perror(MANDOC_DB);
                   1894: }
1.14      schwarze 1895:
1.50      kristaps 1896: /*
                   1897:  * This is straightforward stuff.
                   1898:  * Open a database connection to a "temporary" database, then open a set
                   1899:  * of prepared statements we'll use over and over again.
                   1900:  * If "real" is set, we use the existing database; if not, we truncate a
                   1901:  * temporary one.
                   1902:  * Must be matched by dbclose().
                   1903:  */
                   1904: static int
                   1905: dbopen(const char *base, int real)
                   1906: {
                   1907:        char             file[MAXPATHLEN];
                   1908:        const char      *sql;
                   1909:        int              rc, ofl;
                   1910:        size_t           sz;
1.12      schwarze 1911:
1.50      kristaps 1912:        if (nodb)
                   1913:                return(1);
1.12      schwarze 1914:
1.50      kristaps 1915:        sz = strlcpy(file, MANDOC_DB, MAXPATHLEN);
                   1916:        if ( ! real)
                   1917:                sz = strlcat(file, "~", MAXPATHLEN);
1.5       kristaps 1918:
1.50      kristaps 1919:        if (sz >= MAXPATHLEN) {
                   1920:                fprintf(stderr, "%s: Path too long\n", file);
                   1921:                return(0);
                   1922:        }
1.5       kristaps 1923:
1.50      kristaps 1924:        if ( ! real)
                   1925:                remove(file);
1.38      schwarze 1926:
1.52      kristaps 1927:        ofl = SQLITE_OPEN_READWRITE |
1.50      kristaps 1928:                (0 == real ? SQLITE_OPEN_EXCLUSIVE : 0);
1.45      kristaps 1929:
1.50      kristaps 1930:        rc = sqlite3_open_v2(file, &db, ofl, NULL);
                   1931:        if (SQLITE_OK == rc)
                   1932:                return(1);
                   1933:        if (SQLITE_CANTOPEN != rc) {
                   1934:                perror(file);
                   1935:                return(0);
                   1936:        }
1.12      schwarze 1937:
1.50      kristaps 1938:        sqlite3_close(db);
                   1939:        db = NULL;
1.12      schwarze 1940:
1.50      kristaps 1941:        if (SQLITE_OK != (rc = sqlite3_open(file, &db))) {
                   1942:                perror(file);
                   1943:                return(0);
                   1944:        }
1.12      schwarze 1945:
1.50      kristaps 1946:        sql = "CREATE TABLE \"docs\" (\n"
                   1947:              " \"file\" TEXT NOT NULL,\n"
                   1948:              " \"sec\" TEXT NOT NULL,\n"
                   1949:              " \"arch\" TEXT NOT NULL,\n"
                   1950:              " \"desc\" TEXT NOT NULL,\n"
                   1951:              " \"form\" INTEGER NOT NULL,\n"
                   1952:              " \"id\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n"
                   1953:              ");\n"
                   1954:              "\n"
                   1955:              "CREATE TABLE \"keys\" (\n"
                   1956:              " \"bits\" INTEGER NOT NULL,\n"
                   1957:              " \"key\" TEXT NOT NULL,\n"
                   1958:              " \"docid\" INTEGER NOT NULL REFERENCES docs(id) "
                   1959:                "ON DELETE CASCADE,\n"
                   1960:              " \"id\" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL\n"
                   1961:              ");\n"
                   1962:              "\n"
                   1963:              "CREATE INDEX \"key_index\" ON keys (key);\n";
1.14      schwarze 1964:
1.50      kristaps 1965:        if (SQLITE_OK != sqlite3_exec(db, sql, NULL, NULL, NULL)) {
                   1966:                perror(sqlite3_errmsg(db));
                   1967:                return(0);
                   1968:        }
1.4       kristaps 1969:
1.50      kristaps 1970:        sql = "DELETE FROM docs where file=?";
                   1971:        sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_DELETE], NULL);
                   1972:        sql = "INSERT INTO docs "
                   1973:                "(file,sec,arch,desc,form) VALUES (?,?,?,?,?)";
                   1974:        sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_DOC], NULL);
                   1975:        sql = "INSERT INTO keys "
                   1976:                "(bits,key,docid) VALUES (?,?,?)";
                   1977:        sqlite3_prepare_v2(db, sql, -1, &stmts[STMT_INSERT_KEY], NULL);
                   1978:        return(1);
                   1979: }
1.5       kristaps 1980:
1.50      kristaps 1981: static void *
                   1982: hash_halloc(size_t sz, void *arg)
                   1983: {
1.12      schwarze 1984:
1.50      kristaps 1985:        return(mandoc_calloc(sz, 1));
                   1986: }
1.12      schwarze 1987:
1.50      kristaps 1988: static void *
                   1989: hash_alloc(size_t sz, void *arg)
                   1990: {
1.5       kristaps 1991:
1.50      kristaps 1992:        return(mandoc_malloc(sz));
                   1993: }
1.41      kristaps 1994:
1.50      kristaps 1995: static void
                   1996: hash_free(void *p, size_t sz, void *arg)
                   1997: {
1.4       kristaps 1998:
1.50      kristaps 1999:        free(p);
1.4       kristaps 2000: }
                   2001:
1.50      kristaps 2002: static int
                   2003: path_reset(const char *cwd, int fd, const char *base)
1.4       kristaps 2004: {
                   2005:
1.50      kristaps 2006:        if (-1 == fchdir(fd)) {
                   2007:                perror(cwd);
                   2008:                return(0);
                   2009:        } else if (-1 == chdir(base)) {
                   2010:                perror(base);
                   2011:                return(0);
1.4       kristaps 2012:        }
1.50      kristaps 2013:        return(1);
1.1       kristaps 2014: }

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