-/* $Id: mansearch.c,v 1.11 2013/12/31 02:42:29 schwarze Exp $ */
+/* $Id: mansearch.c,v 1.48 2014/09/03 18:09:14 schwarze Exp $ */
/*
* Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2013 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
+
+#include <sys/mman.h>
+#include <sys/types.h>
#include <assert.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
-#ifdef HAVE_OHASH
+#if HAVE_OHASH
#include <ohash.h>
#else
#include "compat_ohash.h"
#endif
#include <sqlite3.h>
+#ifndef SQLITE_DETERMINISTIC
+#define SQLITE_DETERMINISTIC 0
+#endif
#include "mandoc.h"
+#include "mandoc_aux.h"
#include "manpath.h"
#include "mansearch.h"
+extern int mansearch_keymax;
+extern const char *const mansearch_keynames[];
+
#define SQL_BIND_TEXT(_db, _s, _i, _v) \
do { if (SQLITE_OK != sqlite3_bind_text \
((_s), (_i)++, (_v), -1, SQLITE_STATIC)) \
} while (0)
struct expr {
- uint64_t bits; /* type-mask */
- const char *substr; /* to search for, if applicable */
regex_t regexp; /* compiled regexp, if applicable */
+ const char *substr; /* to search for, if applicable */
struct expr *next; /* next in sequence */
+ uint64_t bits; /* type-mask */
+ int equal; /* equality, not subsring match */
+ int open; /* opening parentheses before */
+ int and; /* logical AND before */
+ int close; /* closing parentheses after */
};
struct match {
- uint64_t id; /* identifier in database */
- char *file; /* relative filepath of manpage */
- char *desc; /* description of manpage */
- int form; /* 0 == catpage */
-};
-
-struct type {
- uint64_t bits;
- const char *name;
-};
-
-static const struct type types[] = {
- { TYPE_An, "An" },
- { TYPE_Ar, "Ar" },
- { TYPE_At, "At" },
- { TYPE_Bsx, "Bsx" },
- { TYPE_Bx, "Bx" },
- { TYPE_Cd, "Cd" },
- { TYPE_Cm, "Cm" },
- { TYPE_Dv, "Dv" },
- { TYPE_Dx, "Dx" },
- { TYPE_Em, "Em" },
- { TYPE_Er, "Er" },
- { TYPE_Ev, "Ev" },
- { TYPE_Fa, "Fa" },
- { TYPE_Fl, "Fl" },
- { TYPE_Fn, "Fn" },
- { TYPE_Fn, "Fo" },
- { TYPE_Ft, "Ft" },
- { TYPE_Fx, "Fx" },
- { TYPE_Ic, "Ic" },
- { TYPE_In, "In" },
- { TYPE_Lb, "Lb" },
- { TYPE_Li, "Li" },
- { TYPE_Lk, "Lk" },
- { TYPE_Ms, "Ms" },
- { TYPE_Mt, "Mt" },
- { TYPE_Nd, "Nd" },
- { TYPE_Nm, "Nm" },
- { TYPE_Nx, "Nx" },
- { TYPE_Ox, "Ox" },
- { TYPE_Pa, "Pa" },
- { TYPE_Rs, "Rs" },
- { TYPE_Sh, "Sh" },
- { TYPE_Ss, "Ss" },
- { TYPE_St, "St" },
- { TYPE_Sy, "Sy" },
- { TYPE_Tn, "Tn" },
- { TYPE_Va, "Va" },
- { TYPE_Va, "Vt" },
- { TYPE_Xr, "Xr" },
- { ~0ULL, "any" },
- { 0ULL, NULL }
+ uint64_t pageid; /* identifier in database */
+ char *desc; /* manual page description */
+ int form; /* bit field: formatted, zipped? */
};
-static char *buildnames(sqlite3 *, sqlite3_stmt *, uint64_t);
+static void buildnames(struct manpage *, sqlite3 *,
+ sqlite3_stmt *, uint64_t,
+ const char *, int form);
+static char *buildoutput(sqlite3 *, sqlite3_stmt *,
+ uint64_t, uint64_t);
static void *hash_alloc(size_t, void *);
-static void hash_free(void *, size_t, void *);
-static void *hash_halloc(size_t, void *);
-static struct expr *exprcomp(const struct mansearch *,
+static void hash_free(void *, void *);
+static void *hash_calloc(size_t, size_t, void *);
+static struct expr *exprcomp(const struct mansearch *,
int, char *[]);
static void exprfree(struct expr *);
+static struct expr *exprspec(struct expr *, uint64_t,
+ const char *, const char *);
static struct expr *exprterm(const struct mansearch *, char *, int);
+static int manpage_compare(const void *, const void *);
+static void sql_append(char **sql, size_t *sz,
+ const char *newstr, int count);
static void sql_match(sqlite3_context *context,
int argc, sqlite3_value **argv);
static void sql_regexp(sqlite3_context *context,
int argc, sqlite3_value **argv);
-static char *sql_statement(const struct expr *,
- const char *, const char *);
+static char *sql_statement(const struct expr *);
+
+
+int
+mansearch_setup(int start)
+{
+ static void *pagecache;
+ int c;
+
+#define PC_PAGESIZE 1280
+#define PC_NUMPAGES 256
+
+ if (start) {
+ if (NULL != pagecache) {
+ fprintf(stderr, "pagecache already enabled\n");
+ return((int)MANDOCLEVEL_BADARG);
+ }
+
+ pagecache = mmap(NULL, PC_PAGESIZE * PC_NUMPAGES,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_ANON, -1, 0);
+
+ if (MAP_FAILED == pagecache) {
+ perror("mmap");
+ pagecache = NULL;
+ return((int)MANDOCLEVEL_SYSERR);
+ }
+
+ c = sqlite3_config(SQLITE_CONFIG_PAGECACHE,
+ pagecache, PC_PAGESIZE, PC_NUMPAGES);
+
+ if (SQLITE_OK == c)
+ return((int)MANDOCLEVEL_OK);
+
+ fprintf(stderr, "pagecache: %s\n", sqlite3_errstr(c));
+
+ } else if (NULL == pagecache) {
+ fprintf(stderr, "pagecache missing\n");
+ return((int)MANDOCLEVEL_BADARG);
+ }
+
+ if (-1 == munmap(pagecache, PC_PAGESIZE * PC_NUMPAGES)) {
+ perror("munmap");
+ pagecache = NULL;
+ return((int)MANDOCLEVEL_SYSERR);
+ }
+
+ pagecache = NULL;
+ return((int)MANDOCLEVEL_OK);
+}
int
mansearch(const struct mansearch *search,
- const struct manpaths *paths,
- int argc, char *argv[],
+ const struct manpaths *paths,
+ int argc, char *argv[],
struct manpage **res, size_t *sz)
{
- int fd, rc, c;
- int64_t id;
+ int fd, rc, c, indexbit;
+ int64_t pageid;
+ uint64_t outbit, iterbit;
char buf[PATH_MAX];
char *sql;
struct manpage *mpage;
struct expr *e, *ep;
sqlite3 *db;
- sqlite3_stmt *s;
+ sqlite3_stmt *s, *s2;
struct match *mp;
struct ohash_info info;
struct ohash htab;
unsigned int idx;
size_t i, j, cur, maxres;
- memset(&info, 0, sizeof(struct ohash_info));
-
- info.halloc = hash_halloc;
+ info.calloc = hash_calloc;
info.alloc = hash_alloc;
- info.hfree = hash_free;
- info.key_offset = offsetof(struct match, id);
+ info.free = hash_free;
+ info.key_offset = offsetof(struct match, pageid);
*sz = cur = maxres = 0;
sql = NULL;
if (NULL == (e = exprcomp(search, argc, argv)))
goto out;
+ outbit = 0;
+ if (NULL != search->outkey) {
+ for (indexbit = 0, iterbit = 1;
+ indexbit < mansearch_keymax;
+ indexbit++, iterbit <<= 1) {
+ if (0 == strcasecmp(search->outkey,
+ mansearch_keynames[indexbit])) {
+ outbit = iterbit;
+ break;
+ }
+ }
+ }
+
/*
* Save a descriptor to the current working directory.
* Since pathnames in the "paths" variable might be relative,
*/
if (NULL == getcwd(buf, PATH_MAX)) {
- perror(NULL);
+ perror("getcwd");
goto out;
} else if (-1 == (fd = open(buf, O_RDONLY, 0))) {
perror(buf);
goto out;
}
- sql = sql_statement(e, search->arch, search->sec);
+ sql = sql_statement(e);
/*
* Loop over the directories (containing databases) for us to
} else if (-1 == chdir(paths->paths[i])) {
perror(paths->paths[i]);
continue;
- }
+ }
- c = sqlite3_open_v2
- (MANDOC_DB, &db,
- SQLITE_OPEN_READONLY, NULL);
+ c = sqlite3_open_v2(MANDOC_DB, &db,
+ SQLITE_OPEN_READONLY, NULL);
if (SQLITE_OK != c) {
perror(MANDOC_DB);
*/
c = sqlite3_create_function(db, "match", 2,
- SQLITE_ANY, NULL, sql_match, NULL, NULL);
+ SQLITE_UTF8 | SQLITE_DETERMINISTIC,
+ NULL, sql_match, NULL, NULL);
assert(SQLITE_OK == c);
c = sqlite3_create_function(db, "regexp", 2,
- SQLITE_ANY, NULL, sql_regexp, NULL, NULL);
+ SQLITE_UTF8 | SQLITE_DETERMINISTIC,
+ NULL, sql_regexp, NULL, NULL);
assert(SQLITE_OK == c);
j = 1;
if (SQLITE_OK != c)
fprintf(stderr, "%s\n", sqlite3_errmsg(db));
- if (NULL != search->arch)
- SQL_BIND_TEXT(db, s, j, search->arch);
- if (NULL != search->sec)
- SQL_BIND_TEXT(db, s, j, search->sec);
-
for (ep = e; NULL != ep; ep = ep->next) {
if (NULL == ep->substr) {
SQL_BIND_BLOB(db, s, j, ep->regexp);
} else
SQL_BIND_TEXT(db, s, j, ep->substr);
- SQL_BIND_INT64(db, s, j, ep->bits);
+ if (0 == ((TYPE_Nd | TYPE_Nm) & ep->bits))
+ SQL_BIND_INT64(db, s, j, ep->bits);
}
memset(&htab, 0, sizeof(struct ohash));
* distribution of buckets in the table.
*/
while (SQLITE_ROW == (c = sqlite3_step(s))) {
- id = sqlite3_column_int64(s, 0);
- idx = ohash_lookup_memory
- (&htab, (char *)&id,
- sizeof(uint64_t), (uint32_t)id);
+ pageid = sqlite3_column_int64(s, 2);
+ idx = ohash_lookup_memory(&htab,
+ (char *)&pageid, sizeof(uint64_t),
+ (uint32_t)pageid);
if (NULL != ohash_find(&htab, idx))
continue;
mp = mandoc_calloc(1, sizeof(struct match));
- mp->id = id;
- mp->file = mandoc_strdup
- ((char *)sqlite3_column_text(s, 3));
- mp->desc = mandoc_strdup
- ((char *)sqlite3_column_text(s, 4));
- mp->form = sqlite3_column_int(s, 5);
+ mp->pageid = pageid;
+ mp->form = sqlite3_column_int(s, 1);
+ if (TYPE_Nd == outbit)
+ mp->desc = mandoc_strdup((const char *)
+ sqlite3_column_text(s, 0));
ohash_insert(&htab, idx, mp);
}
sqlite3_finalize(s);
- c = sqlite3_prepare_v2(db,
- "SELECT * FROM mlinks WHERE pageid=?",
+ c = sqlite3_prepare_v2(db,
+ "SELECT sec, arch, name, pageid FROM mlinks "
+ "WHERE pageid=? ORDER BY sec, arch, name",
-1, &s, NULL);
if (SQLITE_OK != c)
fprintf(stderr, "%s\n", sqlite3_errmsg(db));
+ c = sqlite3_prepare_v2(db,
+ "SELECT bits, key, pageid FROM keys "
+ "WHERE pageid=? AND bits & ?",
+ -1, &s2, NULL);
+ if (SQLITE_OK != c)
+ fprintf(stderr, "%s\n", sqlite3_errmsg(db));
+
for (mp = ohash_first(&htab, &idx);
NULL != mp;
mp = ohash_next(&htab, &idx)) {
if (cur + 1 > maxres) {
maxres += 1024;
- *res = mandoc_realloc
- (*res, maxres * sizeof(struct manpage));
+ *res = mandoc_reallocarray(*res,
+ maxres, sizeof(struct manpage));
}
mpage = *res + cur;
- if (-1 == asprintf(&mpage->file, "%s/%s",
- paths->paths[i], mp->file)) {
- perror(0);
- exit((int)MANDOCLEVEL_SYSERR);
- }
- mpage->desc = mp->desc;
+ mpage->ipath = i;
+ mpage->sec = 10;
mpage->form = mp->form;
- mpage->names = buildnames(db, s, mp->id);
+ buildnames(mpage, db, s, mp->pageid,
+ paths->paths[i], mp->form);
+ mpage->output = TYPE_Nd & outbit ?
+ mp->desc : outbit ?
+ buildoutput(db, s2, mp->pageid, outbit) : NULL;
- free(mp->file);
free(mp);
cur++;
}
sqlite3_finalize(s);
+ sqlite3_finalize(s2);
sqlite3_close(db);
ohash_delete(&htab);
}
+ qsort(*res, cur, sizeof(struct manpage), manpage_compare);
rc = 1;
out:
- exprfree(e);
- if (-1 != fd)
+ if (-1 != fd) {
+ if (-1 == fchdir(fd))
+ perror(buf);
close(fd);
+ }
+ exprfree(e);
free(sql);
*sz = cur;
return(rc);
}
-static char *
-buildnames(sqlite3 *db, sqlite3_stmt *s, uint64_t id)
+void
+mansearch_free(struct manpage *res, size_t sz)
{
- char *names, *newnames;
- const char *oldnames, *sep1, *name, *sec, *sep2, *arch;
+ size_t i;
+
+ for (i = 0; i < sz; i++) {
+ free(res[i].file);
+ free(res[i].names);
+ free(res[i].output);
+ }
+ free(res);
+}
+
+static int
+manpage_compare(const void *vp1, const void *vp2)
+{
+ const struct manpage *mp1, *mp2;
+ int diff;
+
+ mp1 = vp1;
+ mp2 = vp2;
+ diff = mp1->sec - mp2->sec;
+ return(diff ? diff : strcasecmp(mp1->names, mp2->names));
+}
+
+static void
+buildnames(struct manpage *mpage, sqlite3 *db, sqlite3_stmt *s,
+ uint64_t pageid, const char *path, int form)
+{
+ char *newnames, *prevsec, *prevarch;
+ const char *oldnames, *sep1, *name, *sec, *sep2, *arch, *fsec;
+ const char *gzip;
size_t i;
int c;
- names = NULL;
+ mpage->file = NULL;
+ mpage->names = NULL;
+ prevsec = prevarch = NULL;
i = 1;
- SQL_BIND_INT64(db, s, i, id);
+ SQL_BIND_INT64(db, s, i, pageid);
while (SQLITE_ROW == (c = sqlite3_step(s))) {
- if (NULL == names) {
+
+ /* Decide whether we already have some names. */
+
+ if (NULL == mpage->names) {
oldnames = "";
sep1 = "";
} else {
- oldnames = names;
+ oldnames = mpage->names;
sep1 = ", ";
}
- sec = sqlite3_column_text(s, 1);
- arch = sqlite3_column_text(s, 2);
- name = sqlite3_column_text(s, 3);
+
+ /* Fetch the next name. */
+
+ sec = (const char *)sqlite3_column_text(s, 0);
+ arch = (const char *)sqlite3_column_text(s, 1);
+ name = (const char *)sqlite3_column_text(s, 2);
+
+ /* Remember the first section found. */
+
+ if (9 < mpage->sec && '1' <= *sec && '9' >= *sec)
+ mpage->sec = (*sec - '1') + 1;
+
+ /* If the section changed, append the old one. */
+
+ if (NULL != prevsec &&
+ (strcmp(sec, prevsec) ||
+ strcmp(arch, prevarch))) {
+ sep2 = '\0' == *prevarch ? "" : "/";
+ mandoc_asprintf(&newnames, "%s(%s%s%s)",
+ oldnames, prevsec, sep2, prevarch);
+ free(mpage->names);
+ oldnames = mpage->names = newnames;
+ free(prevsec);
+ free(prevarch);
+ prevsec = prevarch = NULL;
+ }
+
+ /* Save the new section, to append it later. */
+
+ if (NULL == prevsec) {
+ prevsec = mandoc_strdup(sec);
+ prevarch = mandoc_strdup(arch);
+ }
+
+ /* Append the new name. */
+
+ mandoc_asprintf(&newnames, "%s%s%s",
+ oldnames, sep1, name);
+ free(mpage->names);
+ mpage->names = newnames;
+
+ /* Also save the first file name encountered. */
+
+ if (NULL != mpage->file)
+ continue;
+
+ if (form & FORM_SRC) {
+ sep1 = "man";
+ fsec = sec;
+ } else {
+ sep1 = "cat";
+ fsec = "0";
+ }
+ if (form & FORM_GZ)
+ gzip = ".gz";
+ else
+ gzip = "";
sep2 = '\0' == *arch ? "" : "/";
- if (-1 == asprintf(&newnames, "%s%s%s(%s%s%s)",
- oldnames, sep1, name, sec, sep2, arch)) {
- perror(0);
- exit((int)MANDOCLEVEL_SYSERR);
+ mandoc_asprintf(&mpage->file, "%s/%s%s%s%s/%s.%s%s",
+ path, sep1, sec, sep2, arch, name, fsec, gzip);
+ }
+ if (SQLITE_DONE != c)
+ fprintf(stderr, "%s\n", sqlite3_errmsg(db));
+ sqlite3_reset(s);
+
+ /* Append one final section to the names. */
+
+ if (NULL != prevsec) {
+ sep2 = '\0' == *prevarch ? "" : "/";
+ mandoc_asprintf(&newnames, "%s(%s%s%s)",
+ mpage->names, prevsec, sep2, prevarch);
+ free(mpage->names);
+ mpage->names = newnames;
+ free(prevsec);
+ free(prevarch);
+ }
+}
+
+static char *
+buildoutput(sqlite3 *db, sqlite3_stmt *s, uint64_t pageid, uint64_t outbit)
+{
+ char *output, *newoutput;
+ const char *oldoutput, *sep1, *data;
+ size_t i;
+ int c;
+
+ output = NULL;
+ i = 1;
+ SQL_BIND_INT64(db, s, i, pageid);
+ SQL_BIND_INT64(db, s, i, outbit);
+ while (SQLITE_ROW == (c = sqlite3_step(s))) {
+ if (NULL == output) {
+ oldoutput = "";
+ sep1 = "";
+ } else {
+ oldoutput = output;
+ sep1 = " # ";
}
- free(names);
- names = newnames;
+ data = (const char *)sqlite3_column_text(s, 1);
+ mandoc_asprintf(&newoutput, "%s%s%s",
+ oldoutput, sep1, data);
+ free(output);
+ output = newoutput;
}
if (SQLITE_DONE != c)
fprintf(stderr, "%s\n", sqlite3_errmsg(db));
sqlite3_reset(s);
- return(names);
+ return(output);
}
/*
0, NULL, 0));
}
+static void
+sql_append(char **sql, size_t *sz, const char *newstr, int count)
+{
+ size_t newsz;
+
+ newsz = 1 < count ? (size_t)count : strlen(newstr);
+ *sql = mandoc_realloc(*sql, *sz + newsz + 1);
+ if (1 < count)
+ memset(*sql + *sz, *newstr, (size_t)count);
+ else
+ memcpy(*sql + *sz, newstr, newsz);
+ *sz += newsz;
+ (*sql)[*sz] = '\0';
+}
+
/*
* Prepare the search SQL statement.
- * We search for any of the words specified in our match expression.
- * We filter the per-doc AND expressions when collecting results.
*/
static char *
-sql_statement(const struct expr *e, const char *arch, const char *sec)
+sql_statement(const struct expr *e)
{
char *sql;
- const char *substr = "(key MATCH ? AND bits & ?)";
- const char *regexp = "(key REGEXP ? AND bits & ?)";
- const char *andarch = "arch = ? AND ";
- const char *andsec = "sec = ? AND ";
- size_t substrsz;
- size_t regexpsz;
size_t sz;
+ int needop;
- sql = mandoc_strdup
- ("SELECT pageid,bits,key,file,desc,form,sec,arch "
- "FROM keys "
- "INNER JOIN mpages ON mpages.id=keys.pageid "
- "WHERE ");
+ sql = mandoc_strdup(
+ "SELECT desc, form, pageid FROM mpages WHERE ");
sz = strlen(sql);
- substrsz = strlen(substr);
- regexpsz = strlen(regexp);
-
- if (NULL != arch) {
- sz += strlen(andarch) + 1;
- sql = mandoc_realloc(sql, sz);
- strlcat(sql, andarch, sz);
- }
-
- if (NULL != sec) {
- sz += strlen(andsec) + 1;
- sql = mandoc_realloc(sql, sz);
- strlcat(sql, andsec, sz);
- }
-
- sz += 2;
- sql = mandoc_realloc(sql, sz);
- strlcat(sql, "(", sz);
- for ( ; NULL != e; e = e->next) {
- sz += (NULL == e->substr ? regexpsz : substrsz) +
- (NULL == e->next ? 3 : 5);
- sql = mandoc_realloc(sql, sz);
- strlcat(sql, NULL == e->substr ? regexp : substr, sz);
- strlcat(sql, NULL == e->next ? ");" : " OR ", sz);
+ for (needop = 0; NULL != e; e = e->next) {
+ if (e->and)
+ sql_append(&sql, &sz, " AND ", 1);
+ else if (needop)
+ sql_append(&sql, &sz, " OR ", 1);
+ if (e->open)
+ sql_append(&sql, &sz, "(", e->open);
+ sql_append(&sql, &sz,
+ TYPE_Nd & e->bits
+ ? (NULL == e->substr
+ ? "desc REGEXP ?"
+ : "desc MATCH ?")
+ : TYPE_Nm == e->bits
+ ? (NULL == e->substr
+ ? "pageid IN (SELECT pageid FROM names "
+ "WHERE name REGEXP ?)"
+ : e->equal
+ ? "pageid IN (SELECT pageid FROM names "
+ "WHERE name = ?)"
+ : "pageid IN (SELECT pageid FROM names "
+ "WHERE name MATCH ?)")
+ : (NULL == e->substr
+ ? "pageid IN (SELECT pageid FROM keys "
+ "WHERE key REGEXP ? AND bits & ?)"
+ : "pageid IN (SELECT pageid FROM keys "
+ "WHERE key MATCH ? AND bits & ?)"), 1);
+ if (e->close)
+ sql_append(&sql, &sz, ")", e->close);
+ needop = 1;
}
return(sql);
static struct expr *
exprcomp(const struct mansearch *search, int argc, char *argv[])
{
- int i, cs;
- struct expr *first, *next, *cur;
+ uint64_t mask;
+ int i, toopen, logic, igncase, toclose;
+ struct expr *first, *prev, *cur, *next;
first = cur = NULL;
+ logic = igncase = toclose = 0;
+ toopen = NULL != search->sec || NULL != search->arch;
for (i = 0; i < argc; i++) {
- if (0 == strcmp("-i", argv[i])) {
- if (++i >= argc)
- return(NULL);
- cs = 0;
- } else
- cs = 1;
- next = exprterm(search, argv[i], cs);
- if (NULL == next) {
- exprfree(first);
- return(NULL);
+ if (0 == strcmp("(", argv[i])) {
+ if (igncase)
+ goto fail;
+ toopen++;
+ toclose++;
+ continue;
+ } else if (0 == strcmp(")", argv[i])) {
+ if (toopen || logic || igncase || NULL == cur)
+ goto fail;
+ cur->close++;
+ if (0 > --toclose)
+ goto fail;
+ continue;
+ } else if (0 == strcmp("-a", argv[i])) {
+ if (toopen || logic || igncase || NULL == cur)
+ goto fail;
+ logic = 1;
+ continue;
+ } else if (0 == strcmp("-o", argv[i])) {
+ if (toopen || logic || igncase || NULL == cur)
+ goto fail;
+ logic = 2;
+ continue;
+ } else if (0 == strcmp("-i", argv[i])) {
+ if (igncase)
+ goto fail;
+ igncase = 1;
+ continue;
}
- if (NULL != first) {
+ next = exprterm(search, argv[i], !igncase);
+ if (NULL == next)
+ goto fail;
+ if (NULL == first)
+ first = next;
+ else
cur->next = next;
- cur = next;
- } else
- cur = first = next;
+ prev = cur = next;
+
+ /*
+ * Searching for descriptions must be split out
+ * because they are stored in the mpages table,
+ * not in the keys table.
+ */
+
+ for (mask = TYPE_Nm; mask <= TYPE_Nd; mask <<= 1) {
+ if (mask & cur->bits && ~mask & cur->bits) {
+ next = mandoc_calloc(1,
+ sizeof(struct expr));
+ memcpy(next, cur, sizeof(struct expr));
+ prev->open = 1;
+ cur->bits = mask;
+ cur->next = next;
+ cur = next;
+ cur->bits &= ~mask;
+ }
+ }
+ prev->and = (1 == logic);
+ prev->open += toopen;
+ if (cur != prev)
+ cur->close = 1;
+
+ toopen = logic = igncase = 0;
}
+ if (toopen || logic || igncase || toclose)
+ goto fail;
+
+ if (NULL != search->sec || NULL != search->arch)
+ cur->close++;
+ if (NULL != search->arch)
+ cur = exprspec(cur, TYPE_arch, search->arch, "^(%s|any)$");
+ if (NULL != search->sec)
+ exprspec(cur, TYPE_sec, search->sec, "^%s$");
return(first);
+
+fail:
+ if (NULL != first)
+ exprfree(first);
+ return(NULL);
+}
+
+static struct expr *
+exprspec(struct expr *cur, uint64_t key, const char *value,
+ const char *format)
+{
+ char errbuf[BUFSIZ];
+ char *cp;
+ int irc;
+
+ mandoc_asprintf(&cp, format, value);
+ cur->next = mandoc_calloc(1, sizeof(struct expr));
+ cur = cur->next;
+ cur->and = 1;
+ cur->bits = key;
+ if (0 != (irc = regcomp(&cur->regexp, cp,
+ REG_EXTENDED | REG_NOSUB | REG_ICASE))) {
+ regerror(irc, &cur->regexp, errbuf, sizeof(errbuf));
+ fprintf(stderr, "regcomp: %s\n", errbuf);
+ cur->substr = value;
+ }
+ free(cp);
+ return(cur);
}
static struct expr *
exprterm(const struct mansearch *search, char *buf, int cs)
{
+ char errbuf[BUFSIZ];
struct expr *e;
- char *key, *v;
- size_t i;
+ char *key, *val;
+ uint64_t iterbit;
+ int i, irc;
if ('\0' == *buf)
return(NULL);
e = mandoc_calloc(1, sizeof(struct expr));
- /*"whatis" mode uses an opaque string and default fields. */
-
- if (MANSEARCH_WHATIS & search->flags) {
+ if (search->argmode == ARG_NAME) {
+ e->bits = TYPE_Nm;
e->substr = buf;
- e->bits = search->deftype;
+ e->equal = 1;
return(e);
}
/*
- * If no =~ is specified, search with equality over names and
- * descriptions.
- * If =~ begins the phrase, use name and description fields.
+ * Separate macro keys from search string.
+ * If needed, request regular expression handling
+ * by setting e->substr to NULL.
*/
- if (NULL == (v = strpbrk(buf, "=~"))) {
+ if (search->argmode == ARG_WORD) {
+ e->bits = TYPE_Nm;
+ e->substr = NULL;
+ mandoc_asprintf(&val, "[[:<:]]%s[[:>:]]", buf);
+ cs = 0;
+ } else if ((val = strpbrk(buf, "=~")) == NULL) {
+ e->bits = TYPE_Nm | TYPE_Nd;
e->substr = buf;
- e->bits = search->deftype;
- return(e);
- } else if (v == buf)
- e->bits = search->deftype;
+ } else {
+ if (val == buf)
+ e->bits = TYPE_Nm | TYPE_Nd;
+ if ('=' == *val)
+ e->substr = val + 1;
+ *val++ = '\0';
+ if (NULL != strstr(buf, "arch"))
+ cs = 0;
+ }
- if ('~' == *v++) {
- if (regcomp(&e->regexp, v,
- REG_EXTENDED | REG_NOSUB | (cs ? 0 : REG_ICASE))) {
+ /* Compile regular expressions. */
+
+ if (NULL == e->substr) {
+ irc = regcomp(&e->regexp, val,
+ REG_EXTENDED | REG_NOSUB | (cs ? 0 : REG_ICASE));
+ if (search->argmode == ARG_WORD)
+ free(val);
+ if (irc) {
+ regerror(irc, &e->regexp, errbuf, sizeof(errbuf));
+ fprintf(stderr, "regcomp: %s\n", errbuf);
free(e);
return(NULL);
}
- } else
- e->substr = v;
- v[-1] = '\0';
+ }
+
+ if (e->bits)
+ return(e);
/*
* Parse out all possible fields.
while (NULL != (key = strsep(&buf, ","))) {
if ('\0' == *key)
continue;
- i = 0;
- while (types[i].bits &&
- strcasecmp(types[i].name, key))
- i++;
- if (0 == types[i].bits) {
- free(e);
- return(NULL);
+ for (i = 0, iterbit = 1;
+ i < mansearch_keymax;
+ i++, iterbit <<= 1) {
+ if (0 == strcasecmp(key,
+ mansearch_keynames[i])) {
+ e->bits |= iterbit;
+ break;
+ }
+ }
+ if (i == mansearch_keymax) {
+ if (strcasecmp(key, "any")) {
+ free(e);
+ return(NULL);
+ }
+ e->bits |= ~0ULL;
}
- e->bits |= types[i].bits;
}
return(e);
}
static void *
-hash_halloc(size_t sz, void *arg)
+hash_calloc(size_t nmemb, size_t sz, void *arg)
{
- return(mandoc_calloc(sz, 1));
+ return(mandoc_calloc(nmemb, sz));
}
static void *
}
static void
-hash_free(void *p, size_t sz, void *arg)
+hash_free(void *p, void *arg)
{
free(p);
git.ckatri.com / mandoc.git / blobdiff