/
spell.c
1758 lines (1540 loc) · 37.9 KB
/
spell.c
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/*-------------------------------------------------------------------------
*
* spell.c
* Normalizing word with ISpell
*
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/tsearch/spell.c,v 1.17 2010/01/02 16:57:53 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "tsearch/dicts/spell.h"
#include "tsearch/ts_locale.h"
#include "utils/memutils.h"
/*
* Initialization requires a lot of memory that's not needed
* after the initialization is done. In init function,
* CurrentMemoryContext is a long lived memory context associated
* with the dictionary cache entry, so we use a temporary context
* for the short-lived stuff.
*/
static MemoryContext tmpCtx = NULL;
#define tmpalloc(sz) MemoryContextAlloc(tmpCtx, (sz))
#define tmpalloc0(sz) MemoryContextAllocZero(tmpCtx, (sz))
static void
checkTmpCtx(void)
{
/*
* XXX: This assumes that CurrentMemoryContext doesn't have any children
* other than the one we create here.
*/
if (CurrentMemoryContext->firstchild == NULL)
{
tmpCtx = AllocSetContextCreate(CurrentMemoryContext,
"Ispell dictionary init context",
ALLOCSET_DEFAULT_MINSIZE,
ALLOCSET_DEFAULT_INITSIZE,
ALLOCSET_DEFAULT_MAXSIZE);
}
else
tmpCtx = CurrentMemoryContext->firstchild;
}
static char *
lowerstr_ctx(char *src)
{
MemoryContext saveCtx;
char *dst;
saveCtx = MemoryContextSwitchTo(tmpCtx);
dst = lowerstr(src);
MemoryContextSwitchTo(saveCtx);
return dst;
}
#define MAX_NORM 1024
#define MAXNORMLEN 256
#define STRNCMP(s,p) strncmp( (s), (p), strlen(p) )
#define GETWCHAR(W,L,N,T) ( ((uint8*)(W))[ ((T)==FF_PREFIX) ? (N) : ( (L) - 1 - (N) ) ] )
#define GETCHAR(A,N,T) GETWCHAR( (A)->repl, (A)->replen, N, T )
static char *VoidString = "";
static int
cmpspell(const void *s1, const void *s2)
{
return (strcmp((*(const SPELL **) s1)->word, (*(const SPELL **) s2)->word));
}
static int
cmpspellaffix(const void *s1, const void *s2)
{
return (strncmp((*(const SPELL **) s1)->p.flag, (*(const SPELL **) s2)->p.flag, MAXFLAGLEN));
}
static char *
findchar(char *str, int c)
{
while (*str)
{
if (t_iseq(str, c))
return str;
str += pg_mblen(str);
}
return NULL;
}
/* backward string compare for suffix tree operations */
static int
strbcmp(const unsigned char *s1, const unsigned char *s2)
{
int l1 = strlen((const char *) s1) - 1,
l2 = strlen((const char *) s2) - 1;
while (l1 >= 0 && l2 >= 0)
{
if (s1[l1] < s2[l2])
return -1;
if (s1[l1] > s2[l2])
return 1;
l1--;
l2--;
}
if (l1 < l2)
return -1;
if (l1 > l2)
return 1;
return 0;
}
static int
strbncmp(const unsigned char *s1, const unsigned char *s2, size_t count)
{
int l1 = strlen((const char *) s1) - 1,
l2 = strlen((const char *) s2) - 1,
l = count;
while (l1 >= 0 && l2 >= 0 && l > 0)
{
if (s1[l1] < s2[l2])
return -1;
if (s1[l1] > s2[l2])
return 1;
l1--;
l2--;
l--;
}
if (l == 0)
return 0;
if (l1 < l2)
return -1;
if (l1 > l2)
return 1;
return 0;
}
static int
cmpaffix(const void *s1, const void *s2)
{
const AFFIX *a1 = (const AFFIX *) s1;
const AFFIX *a2 = (const AFFIX *) s2;
if (a1->type < a2->type)
return -1;
if (a1->type > a2->type)
return 1;
if (a1->type == FF_PREFIX)
return strcmp(a1->repl, a2->repl);
else
return strbcmp((const unsigned char *) a1->repl,
(const unsigned char *) a2->repl);
}
static void
NIAddSpell(IspellDict *Conf, const char *word, const char *flag)
{
if (Conf->nspell >= Conf->mspell)
{
if (Conf->mspell)
{
Conf->mspell += 1024 * 20;
Conf->Spell = (SPELL **) repalloc(Conf->Spell, Conf->mspell * sizeof(SPELL *));
}
else
{
Conf->mspell = 1024 * 20;
Conf->Spell = (SPELL **) tmpalloc(Conf->mspell * sizeof(SPELL *));
}
}
Conf->Spell[Conf->nspell] = (SPELL *) tmpalloc(SPELLHDRSZ + strlen(word) + 1);
strcpy(Conf->Spell[Conf->nspell]->word, word);
strlcpy(Conf->Spell[Conf->nspell]->p.flag, flag, MAXFLAGLEN);
Conf->nspell++;
}
/*
* import dictionary
*
* Note caller must already have applied get_tsearch_config_filename
*/
void
NIImportDictionary(IspellDict *Conf, const char *filename)
{
tsearch_readline_state trst;
char *line;
checkTmpCtx();
if (!tsearch_readline_begin(&trst, filename))
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("could not open dictionary file \"%s\": %m",
filename)));
while ((line = tsearch_readline(&trst)) != NULL)
{
char *s,
*pstr;
const char *flag;
/* Extract flag from the line */
flag = NULL;
if ((s = findchar(line, '/')))
{
*s++ = '\0';
flag = s;
while (*s)
{
/* we allow only single encoded flags for faster works */
if (pg_mblen(s) == 1 && t_isprint(s) && !t_isspace(s))
s++;
else
{
*s = '\0';
break;
}
}
}
else
flag = "";
/* Remove trailing spaces */
s = line;
while (*s)
{
if (t_isspace(s))
{
*s = '\0';
break;
}
s += pg_mblen(s);
}
pstr = lowerstr_ctx(line);
NIAddSpell(Conf, pstr, flag);
pfree(pstr);
pfree(line);
}
tsearch_readline_end(&trst);
}
static int
FindWord(IspellDict *Conf, const char *word, int affixflag, int flag)
{
SPNode *node = Conf->Dictionary;
SPNodeData *StopLow,
*StopHigh,
*StopMiddle;
uint8 *ptr = (uint8 *) word;
flag &= FF_DICTFLAGMASK;
while (node && *ptr)
{
StopLow = node->data;
StopHigh = node->data + node->length;
while (StopLow < StopHigh)
{
StopMiddle = StopLow + ((StopHigh - StopLow) >> 1);
if (StopMiddle->val == *ptr)
{
if (*(ptr + 1) == '\0' && StopMiddle->isword)
{
if (flag == 0)
{
if (StopMiddle->compoundflag & FF_COMPOUNDONLY)
return 0;
}
else if ((flag & StopMiddle->compoundflag) == 0)
return 0;
if ((affixflag == 0) || (strchr(Conf->AffixData[StopMiddle->affix], affixflag) != NULL))
return 1;
}
node = StopMiddle->node;
ptr++;
break;
}
else if (StopMiddle->val < *ptr)
StopLow = StopMiddle + 1;
else
StopHigh = StopMiddle;
}
if (StopLow >= StopHigh)
break;
}
return 0;
}
static void
NIAddAffix(IspellDict *Conf, int flag, char flagflags, const char *mask, const char *find, const char *repl, int type)
{
AFFIX *Affix;
if (Conf->naffixes >= Conf->maffixes)
{
if (Conf->maffixes)
{
Conf->maffixes += 16;
Conf->Affix = (AFFIX *) repalloc((void *) Conf->Affix, Conf->maffixes * sizeof(AFFIX));
}
else
{
Conf->maffixes = 16;
Conf->Affix = (AFFIX *) palloc(Conf->maffixes * sizeof(AFFIX));
}
}
Affix = Conf->Affix + Conf->naffixes;
if (strcmp(mask, ".") == 0)
{
Affix->issimple = 1;
Affix->isregis = 0;
}
else if (RS_isRegis(mask))
{
Affix->issimple = 0;
Affix->isregis = 1;
RS_compile(&(Affix->reg.regis), (type == FF_SUFFIX) ? true : false,
(mask && *mask) ? mask : VoidString);
}
else
{
int masklen;
int wmasklen;
int err;
pg_wchar *wmask;
char *tmask;
Affix->issimple = 0;
Affix->isregis = 0;
tmask = (char *) tmpalloc(strlen(mask) + 3);
if (type == FF_SUFFIX)
sprintf(tmask, "%s$", mask);
else
sprintf(tmask, "^%s", mask);
masklen = strlen(tmask);
wmask = (pg_wchar *) tmpalloc((masklen + 1) * sizeof(pg_wchar));
wmasklen = pg_mb2wchar_with_len(tmask, wmask, masklen);
err = pg_regcomp(&(Affix->reg.regex), wmask, wmasklen, REG_ADVANCED | REG_NOSUB);
if (err)
{
char errstr[100];
pg_regerror(err, &(Affix->reg.regex), errstr, sizeof(errstr));
ereport(ERROR,
(errcode(ERRCODE_INVALID_REGULAR_EXPRESSION),
errmsg("invalid regular expression: %s", errstr)));
}
}
Affix->flagflags = flagflags;
if ((Affix->flagflags & FF_COMPOUNDONLY) || (Affix->flagflags & FF_COMPOUNDPERMITFLAG))
{
if ((Affix->flagflags & FF_COMPOUNDFLAG) == 0)
Affix->flagflags |= FF_COMPOUNDFLAG;
}
Affix->flag = flag;
Affix->type = type;
Affix->find = (find && *find) ? pstrdup(find) : VoidString;
if ((Affix->replen = strlen(repl)) > 0)
Affix->repl = pstrdup(repl);
else
Affix->repl = VoidString;
Conf->naffixes++;
}
#define PAE_WAIT_MASK 0
#define PAE_INMASK 1
#define PAE_WAIT_FIND 2
#define PAE_INFIND 3
#define PAE_WAIT_REPL 4
#define PAE_INREPL 5
static bool
parse_affentry(char *str, char *mask, char *find, char *repl)
{
int state = PAE_WAIT_MASK;
char *pmask = mask,
*pfind = find,
*prepl = repl;
*mask = *find = *repl = '\0';
while (*str)
{
if (state == PAE_WAIT_MASK)
{
if (t_iseq(str, '#'))
return false;
else if (!t_isspace(str))
{
COPYCHAR(pmask, str);
pmask += pg_mblen(str);
state = PAE_INMASK;
}
}
else if (state == PAE_INMASK)
{
if (t_iseq(str, '>'))
{
*pmask = '\0';
state = PAE_WAIT_FIND;
}
else if (!t_isspace(str))
{
COPYCHAR(pmask, str);
pmask += pg_mblen(str);
}
}
else if (state == PAE_WAIT_FIND)
{
if (t_iseq(str, '-'))
{
state = PAE_INFIND;
}
else if (t_isalpha(str) || t_iseq(str, '\'') /* english 's */ )
{
COPYCHAR(prepl, str);
prepl += pg_mblen(str);
state = PAE_INREPL;
}
else if (!t_isspace(str))
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("syntax error")));
}
else if (state == PAE_INFIND)
{
if (t_iseq(str, ','))
{
*pfind = '\0';
state = PAE_WAIT_REPL;
}
else if (t_isalpha(str))
{
COPYCHAR(pfind, str);
pfind += pg_mblen(str);
}
else if (!t_isspace(str))
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("syntax error")));
}
else if (state == PAE_WAIT_REPL)
{
if (t_iseq(str, '-'))
{
break; /* void repl */
}
else if (t_isalpha(str))
{
COPYCHAR(prepl, str);
prepl += pg_mblen(str);
state = PAE_INREPL;
}
else if (!t_isspace(str))
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("syntax error")));
}
else if (state == PAE_INREPL)
{
if (t_iseq(str, '#'))
{
*prepl = '\0';
break;
}
else if (t_isalpha(str))
{
COPYCHAR(prepl, str);
prepl += pg_mblen(str);
}
else if (!t_isspace(str))
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("syntax error")));
}
else
elog(ERROR, "unrecognized state in parse_affentry: %d", state);
str += pg_mblen(str);
}
*pmask = *pfind = *prepl = '\0';
return (*mask && (*find || *repl)) ? true : false;
}
static void
addFlagValue(IspellDict *Conf, char *s, uint32 val)
{
while (*s && t_isspace(s))
s += pg_mblen(s);
if (!*s)
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("syntax error")));
if (pg_mblen(s) != 1)
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("multibyte flag character is not allowed")));
Conf->flagval[*(unsigned char *) s] = (unsigned char) val;
Conf->usecompound = true;
}
/*
* Import an affix file that follows MySpell or Hunspell format
*/
static void
NIImportOOAffixes(IspellDict *Conf, const char *filename)
{
char type[BUFSIZ],
*ptype = NULL;
char sflag[BUFSIZ];
char mask[BUFSIZ],
*pmask;
char find[BUFSIZ],
*pfind;
char repl[BUFSIZ],
*prepl;
bool isSuffix = false;
int flag = 0;
char flagflags = 0;
tsearch_readline_state trst;
int scanread = 0;
char scanbuf[BUFSIZ];
char *recoded;
checkTmpCtx();
/* read file to find any flag */
memset(Conf->flagval, 0, sizeof(Conf->flagval));
Conf->usecompound = false;
if (!tsearch_readline_begin(&trst, filename))
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("could not open affix file \"%s\": %m",
filename)));
while ((recoded = tsearch_readline(&trst)) != NULL)
{
if (*recoded == '\0' || t_isspace(recoded) || t_iseq(recoded, '#'))
{
pfree(recoded);
continue;
}
if (STRNCMP(recoded, "COMPOUNDFLAG") == 0)
addFlagValue(Conf, recoded + strlen("COMPOUNDFLAG"),
FF_COMPOUNDFLAG);
else if (STRNCMP(recoded, "COMPOUNDBEGIN") == 0)
addFlagValue(Conf, recoded + strlen("COMPOUNDBEGIN"),
FF_COMPOUNDBEGIN);
else if (STRNCMP(recoded, "COMPOUNDLAST") == 0)
addFlagValue(Conf, recoded + strlen("COMPOUNDLAST"),
FF_COMPOUNDLAST);
/* COMPOUNDLAST and COMPOUNDEND are synonyms */
else if (STRNCMP(recoded, "COMPOUNDEND") == 0)
addFlagValue(Conf, recoded + strlen("COMPOUNDEND"),
FF_COMPOUNDLAST);
else if (STRNCMP(recoded, "COMPOUNDMIDDLE") == 0)
addFlagValue(Conf, recoded + strlen("COMPOUNDMIDDLE"),
FF_COMPOUNDMIDDLE);
else if (STRNCMP(recoded, "ONLYINCOMPOUND") == 0)
addFlagValue(Conf, recoded + strlen("ONLYINCOMPOUND"),
FF_COMPOUNDONLY);
else if (STRNCMP(recoded, "COMPOUNDPERMITFLAG") == 0)
addFlagValue(Conf, recoded + strlen("COMPOUNDPERMITFLAG"),
FF_COMPOUNDPERMITFLAG);
else if (STRNCMP(recoded, "COMPOUNDFORBIDFLAG") == 0)
addFlagValue(Conf, recoded + strlen("COMPOUNDFORBIDFLAG"),
FF_COMPOUNDFORBIDFLAG);
else if (STRNCMP(recoded, "FLAG") == 0)
{
char *s = recoded + strlen("FLAG");
while (*s && t_isspace(s))
s += pg_mblen(s);
if (*s && STRNCMP(s, "default") != 0)
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("Ispell dictionary supports only default flag value")));
}
pfree(recoded);
}
tsearch_readline_end(&trst);
sprintf(scanbuf, "%%6s %%%ds %%%ds %%%ds %%%ds", BUFSIZ / 5, BUFSIZ / 5, BUFSIZ / 5, BUFSIZ / 5);
if (!tsearch_readline_begin(&trst, filename))
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("could not open affix file \"%s\": %m",
filename)));
while ((recoded = tsearch_readline(&trst)) != NULL)
{
if (*recoded == '\0' || t_isspace(recoded) || t_iseq(recoded, '#'))
goto nextline;
scanread = sscanf(recoded, scanbuf, type, sflag, find, repl, mask);
if (ptype)
pfree(ptype);
ptype = lowerstr_ctx(type);
if (scanread < 4 || (STRNCMP(ptype, "sfx") && STRNCMP(ptype, "pfx")))
goto nextline;
if (scanread == 4)
{
if (strlen(sflag) != 1)
goto nextline;
flag = *sflag;
isSuffix = (STRNCMP(ptype, "sfx") == 0) ? true : false;
if (t_iseq(find, 'y') || t_iseq(find, 'Y'))
flagflags = FF_CROSSPRODUCT;
else
flagflags = 0;
}
else
{
char *ptr;
int aflg = 0;
if (strlen(sflag) != 1 || flag != *sflag || flag == 0)
goto nextline;
prepl = lowerstr_ctx(repl);
/* affix flag */
if ((ptr = strchr(prepl, '/')) != NULL)
{
*ptr = '\0';
ptr = repl + (ptr - prepl) + 1;
while (*ptr)
{
aflg |= Conf->flagval[*(unsigned char *) ptr];
ptr++;
}
}
pfind = lowerstr_ctx(find);
pmask = lowerstr_ctx(mask);
if (t_iseq(find, '0'))
*pfind = '\0';
if (t_iseq(repl, '0'))
*prepl = '\0';
NIAddAffix(Conf, flag, flagflags | aflg, pmask, pfind, prepl,
isSuffix ? FF_SUFFIX : FF_PREFIX);
pfree(prepl);
pfree(pfind);
pfree(pmask);
}
nextline:
pfree(recoded);
}
tsearch_readline_end(&trst);
if (ptype)
pfree(ptype);
}
/*
* import affixes
*
* Note caller must already have applied get_tsearch_config_filename
*
* This function is responsible for parsing ispell ("old format") affix files.
* If we realize that the file contains new-format commands, we pass off the
* work to NIImportOOAffixes(), which will re-read the whole file.
*/
void
NIImportAffixes(IspellDict *Conf, const char *filename)
{
char *pstr = NULL;
char mask[BUFSIZ];
char find[BUFSIZ];
char repl[BUFSIZ];
char *s;
bool suffixes = false;
bool prefixes = false;
int flag = 0;
char flagflags = 0;
tsearch_readline_state trst;
bool oldformat = false;
char *recoded = NULL;
checkTmpCtx();
if (!tsearch_readline_begin(&trst, filename))
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("could not open affix file \"%s\": %m",
filename)));
memset(Conf->flagval, 0, sizeof(Conf->flagval));
Conf->usecompound = false;
while ((recoded = tsearch_readline(&trst)) != NULL)
{
pstr = lowerstr(recoded);
/* Skip comments and empty lines */
if (*pstr == '#' || *pstr == '\n')
goto nextline;
if (STRNCMP(pstr, "compoundwords") == 0)
{
s = findchar(pstr, 'l');
if (s)
{
s = recoded + (s - pstr); /* we need non-lowercased
* string */
while (*s && !t_isspace(s))
s += pg_mblen(s);
while (*s && t_isspace(s))
s += pg_mblen(s);
if (*s && pg_mblen(s) == 1)
{
Conf->flagval[*(unsigned char *) s] = FF_COMPOUNDFLAG;
Conf->usecompound = true;
}
oldformat = true;
goto nextline;
}
}
if (STRNCMP(pstr, "suffixes") == 0)
{
suffixes = true;
prefixes = false;
oldformat = true;
goto nextline;
}
if (STRNCMP(pstr, "prefixes") == 0)
{
suffixes = false;
prefixes = true;
oldformat = true;
goto nextline;
}
if (STRNCMP(pstr, "flag") == 0)
{
s = recoded + 4; /* we need non-lowercased string */
flagflags = 0;
while (*s && t_isspace(s))
s += pg_mblen(s);
if (*s == '*')
{
flagflags |= FF_CROSSPRODUCT;
s++;
}
else if (*s == '~')
{
flagflags |= FF_COMPOUNDONLY;
s++;
}
if (*s == '\\')
s++;
/*
* An old-format flag is a single ASCII character; we expect it to
* be followed by EOL, whitespace, or ':'. Otherwise this is a
* new-format flag command.
*/
if (*s && pg_mblen(s) == 1)
{
flag = *(unsigned char *) s;
s++;
if (*s == '\0' || *s == '#' || *s == '\n' || *s == ':' ||
t_isspace(s))
{
oldformat = true;
goto nextline;
}
}
goto isnewformat;
}
if (STRNCMP(recoded, "COMPOUNDFLAG") == 0 ||
STRNCMP(recoded, "COMPOUNDMIN") == 0 ||
STRNCMP(recoded, "PFX") == 0 ||
STRNCMP(recoded, "SFX") == 0)
goto isnewformat;
if ((!suffixes) && (!prefixes))
goto nextline;
if (!parse_affentry(pstr, mask, find, repl))
goto nextline;
NIAddAffix(Conf, flag, flagflags, mask, find, repl, suffixes ? FF_SUFFIX : FF_PREFIX);
nextline:
pfree(recoded);
pfree(pstr);
}
tsearch_readline_end(&trst);
return;
isnewformat:
if (oldformat)
ereport(ERROR,
(errcode(ERRCODE_CONFIG_FILE_ERROR),
errmsg("affix file contains both old-style and new-style commands")));
tsearch_readline_end(&trst);
NIImportOOAffixes(Conf, filename);
}
static int
MergeAffix(IspellDict *Conf, int a1, int a2)
{
char **ptr;
while (Conf->nAffixData + 1 >= Conf->lenAffixData)
{
Conf->lenAffixData *= 2;
Conf->AffixData = (char **) repalloc(Conf->AffixData,
sizeof(char *) * Conf->lenAffixData);
}
ptr = Conf->AffixData + Conf->nAffixData;
*ptr = palloc(strlen(Conf->AffixData[a1]) + strlen(Conf->AffixData[a2]) +
1 /* space */ + 1 /* \0 */ );
sprintf(*ptr, "%s %s", Conf->AffixData[a1], Conf->AffixData[a2]);
ptr++;
*ptr = NULL;
Conf->nAffixData++;
return Conf->nAffixData - 1;
}
static uint32
makeCompoundFlags(IspellDict *Conf, int affix)
{
uint32 flag = 0;
char *str = Conf->AffixData[affix];
while (str && *str)
{
flag |= Conf->flagval[*(unsigned char *) str];
str++;
}
return (flag & FF_DICTFLAGMASK);
}
static SPNode *
mkSPNode(IspellDict *Conf, int low, int high, int level)
{
int i;
int nchar = 0;
char lastchar = '\0';
SPNode *rs;
SPNodeData *data;
int lownew = low;
for (i = low; i < high; i++)
if (Conf->Spell[i]->p.d.len > level && lastchar != Conf->Spell[i]->word[level])
{
nchar++;
lastchar = Conf->Spell[i]->word[level];
}
if (!nchar)
return NULL;
rs = (SPNode *) palloc0(SPNHDRSZ + nchar * sizeof(SPNodeData));
rs->length = nchar;
data = rs->data;
lastchar = '\0';
for (i = low; i < high; i++)
if (Conf->Spell[i]->p.d.len > level)
{
if (lastchar != Conf->Spell[i]->word[level])
{
if (lastchar)
{
data->node = mkSPNode(Conf, lownew, i, level + 1);
lownew = i;
data++;
}
lastchar = Conf->Spell[i]->word[level];
}
data->val = ((uint8 *) (Conf->Spell[i]->word))[level];
if (Conf->Spell[i]->p.d.len == level + 1)
{
bool clearCompoundOnly = false;
if (data->isword && data->affix != Conf->Spell[i]->p.d.affix)
{
/*
* MergeAffix called a few times. If one of word is
* allowed to be in compound word and another isn't, then
* clear FF_COMPOUNDONLY flag.
*/
clearCompoundOnly = (FF_COMPOUNDONLY & data->compoundflag
& makeCompoundFlags(Conf, Conf->Spell[i]->p.d.affix))
? false : true;
data->affix = MergeAffix(Conf, data->affix, Conf->Spell[i]->p.d.affix);
}
else
data->affix = Conf->Spell[i]->p.d.affix;
data->isword = 1;
data->compoundflag = makeCompoundFlags(Conf, data->affix);
if ((data->compoundflag & FF_COMPOUNDONLY) &&
(data->compoundflag & FF_COMPOUNDFLAG) == 0)
data->compoundflag |= FF_COMPOUNDFLAG;
if (clearCompoundOnly)
data->compoundflag &= ~FF_COMPOUNDONLY;
}
}
data->node = mkSPNode(Conf, lownew, high, level + 1);
return rs;
}
/*
* Builds the Conf->Dictionary tree and AffixData from the imported dictionary
* and affixes.
*/
void
NISortDictionary(IspellDict *Conf)
{
int i;
int naffix = 0;
int curaffix;
checkTmpCtx();
/* compress affixes */
/* Count the number of different flags used in the dictionary */
qsort((void *) Conf->Spell, Conf->nspell, sizeof(SPELL *), cmpspellaffix);
naffix = 0;
for (i = 0; i < Conf->nspell; i++)
{
if (i == 0 || strncmp(Conf->Spell[i]->p.flag, Conf->Spell[i - 1]->p.flag, MAXFLAGLEN))
naffix++;
}
/*
* Fill in Conf->AffixData with the affixes that were used in the
* dictionary. Replace textual flag-field of Conf->Spell entries with
* indexes into Conf->AffixData array.
*/
Conf->AffixData = (char **) palloc0(naffix * sizeof(char *));
curaffix = -1;
for (i = 0; i < Conf->nspell; i++)
{
if (i == 0 || strncmp(Conf->Spell[i]->p.flag, Conf->AffixData[curaffix], MAXFLAGLEN))
{
curaffix++;
Assert(curaffix < naffix);
Conf->AffixData[curaffix] = pstrdup(Conf->Spell[i]->p.flag);
}
Conf->Spell[i]->p.d.affix = curaffix;
Conf->Spell[i]->p.d.len = strlen(Conf->Spell[i]->word);
}
Conf->lenAffixData = Conf->nAffixData = naffix;
qsort((void *) Conf->Spell, Conf->nspell, sizeof(SPELL *), cmpspell);