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Commit46a25ce

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1 Fix bug with very short word: prefix and suffix might be overlapped,
 sorry but fix can't be applyed to previous version: it's require refill tsvector...2 Small optimize of load time for huge dictionaries3 use palloc instead of malloc during load dict file
1 parenta815a57 commit46a25ce

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2 files changed

+62
-53
lines changed

2 files changed

+62
-53
lines changed

‎contrib/tsearch2/ispell/spell.c

Lines changed: 57 additions & 50 deletions
Original file line numberDiff line numberDiff line change
@@ -18,18 +18,19 @@
1818
#defineGETWCHAR(W,L,N,T) ( ((uint8*)(W))[ ((T)==FF_PREFIX) ? (N) : ( (L) - 1 - (N) ) ] )
1919
#defineGETCHAR(A,N,T) GETWCHAR( (A)->repl, (A)->replen, N, T )
2020

21+
staticchar*VoidString="";
2122

2223
#defineMEMOUT(X) if ( !(X) ) ereport(ERROR, (errcode(ERRCODE_OUT_OF_MEMORY), errmsg("out of memory")))
2324

2425
staticint
2526
cmpspell(constvoid*s1,constvoid*s2)
2627
{
27-
return (strcmp(((constSPELL*)s1)->word, ((constSPELL*)s2)->word));
28+
return (strcmp((*(constSPELL**)s1)->word, (*(constSPELL**)s2)->word));
2829
}
2930
staticint
3031
cmpspellaffix(constvoid*s1,constvoid*s2)
3132
{
32-
return (strcmp(((constSPELL*)s1)->p.flag, ((constSPELL*)s2)->p.flag));
33+
return (strcmp((*(constSPELL**)s1)->p.flag, (*(constSPELL**)s2)->p.flag));
3334
}
3435

3536
staticchar*
@@ -128,18 +129,17 @@ NIAddSpell(IspellDict * Conf, const char *word, const char *flag)
128129
if (Conf->mspell)
129130
{
130131
Conf->mspell+=1024*20;
131-
Conf->Spell= (SPELL*)realloc(Conf->Spell,Conf->mspell*sizeof(SPELL));
132+
Conf->Spell= (SPELL**)repalloc(Conf->Spell,Conf->mspell*sizeof(SPELL*));
132133
}
133134
else
134135
{
135136
Conf->mspell=1024*20;
136-
Conf->Spell= (SPELL*)malloc(Conf->mspell*sizeof(SPELL));
137+
Conf->Spell= (SPELL**)palloc(Conf->mspell*sizeof(SPELL*));
137138
}
138-
MEMOUT(Conf->Spell);
139139
}
140-
Conf->Spell[Conf->nspell].word=strdup(word);
141-
MEMOUT(Conf->Spell[Conf->nspell].word);
142-
strncpy(Conf->Spell[Conf->nspell].p.flag,flag,16);
140+
Conf->Spell[Conf->nspell]=(SPELL*)palloc(SPELLHDRSZ+strlen(word)+1);
141+
strcpy(Conf->Spell[Conf->nspell]->word ,word);
142+
strncpy(Conf->Spell[Conf->nspell]->p.flag,flag,16);
143143
Conf->nspell++;
144144
return (0);
145145
}
@@ -261,13 +261,13 @@ NIAddAffix(IspellDict * Conf, int flag, char flagflags, const char *mask, const
261261
{
262262
Conf->Affix[Conf->naffixes].issimple=1;
263263
Conf->Affix[Conf->naffixes].isregis=0;
264-
Conf->Affix[Conf->naffixes].mask=strdup("");
264+
Conf->Affix[Conf->naffixes].mask=VoidString;
265265
}
266266
elseif (RS_isRegis(mask))
267267
{
268268
Conf->Affix[Conf->naffixes].issimple=0;
269269
Conf->Affix[Conf->naffixes].isregis=1;
270-
Conf->Affix[Conf->naffixes].mask=strdup(mask);
270+
Conf->Affix[Conf->naffixes].mask=(mask&&*mask) ?strdup(mask) :VoidString;
271271
}
272272
else
273273
{
@@ -287,11 +287,13 @@ NIAddAffix(IspellDict * Conf, int flag, char flagflags, const char *mask, const
287287
Conf->Affix[Conf->naffixes].flag=flag;
288288
Conf->Affix[Conf->naffixes].type=type;
289289

290-
Conf->Affix[Conf->naffixes].find=strdup(find);
290+
Conf->Affix[Conf->naffixes].find=(find&&*find) ?strdup(find) :VoidString;
291291
MEMOUT(Conf->Affix[Conf->naffixes].find);
292-
Conf->Affix[Conf->naffixes].repl=strdup(repl);
293-
MEMOUT(Conf->Affix[Conf->naffixes].repl);
294-
Conf->Affix[Conf->naffixes].replen=strlen(repl);
292+
if ( (Conf->Affix[Conf->naffixes].replen=strlen(repl))>0 ) {
293+
Conf->Affix[Conf->naffixes].repl=strdup(repl);
294+
MEMOUT(Conf->Affix[Conf->naffixes].repl);
295+
}else
296+
Conf->Affix[Conf->naffixes].repl=VoidString;
295297
Conf->naffixes++;
296298
return (0);
297299
}
@@ -506,10 +508,10 @@ mkSPNode(IspellDict * Conf, int low, int high, int level)
506508
intlownew=low;
507509

508510
for (i=low;i<high;i++)
509-
if (Conf->Spell[i].p.d.len>level&&lastchar!=Conf->Spell[i].word[level])
511+
if (Conf->Spell[i]->p.d.len>level&&lastchar!=Conf->Spell[i]->word[level])
510512
{
511513
nchar++;
512-
lastchar=Conf->Spell[i].word[level];
514+
lastchar=Conf->Spell[i]->word[level];
513515
}
514516

515517
if (!nchar)
@@ -523,34 +525,34 @@ mkSPNode(IspellDict * Conf, int low, int high, int level)
523525

524526
lastchar='\0';
525527
for (i=low;i<high;i++)
526-
if (Conf->Spell[i].p.d.len>level)
528+
if (Conf->Spell[i]->p.d.len>level)
527529
{
528-
if (lastchar!=Conf->Spell[i].word[level])
530+
if (lastchar!=Conf->Spell[i]->word[level])
529531
{
530532
if (lastchar)
531533
{
532534
data->node=mkSPNode(Conf,lownew,i,level+1);
533535
lownew=i;
534536
data++;
535537
}
536-
lastchar=Conf->Spell[i].word[level];
538+
lastchar=Conf->Spell[i]->word[level];
537539
}
538-
data->val= ((uint8*) (Conf->Spell[i].word))[level];
539-
if (Conf->Spell[i].p.d.len==level+1)
540+
data->val= ((uint8*) (Conf->Spell[i]->word))[level];
541+
if (Conf->Spell[i]->p.d.len==level+1)
540542
{
541-
if (data->isword&&data->affix!=Conf->Spell[i].p.d.affix)
543+
if (data->isword&&data->affix!=Conf->Spell[i]->p.d.affix)
542544
{
543545
/*
544546
* fprintf(stderr,"Word already exists: %s (affixes: '%s'
545-
* and '%s')\n", Conf->Spell[i].word,
547+
* and '%s')\n", Conf->Spell[i]->word,
546548
* Conf->AffixData[data->affix],
547-
* Conf->AffixData[Conf->Spell[i].p.d.affix] );
549+
* Conf->AffixData[Conf->Spell[i]->p.d.affix] );
548550
*/
549551
/* MergeAffix called a few times */
550-
data->affix=MergeAffix(Conf,data->affix,Conf->Spell[i].p.d.affix);
552+
data->affix=MergeAffix(Conf,data->affix,Conf->Spell[i]->p.d.affix);
551553
}
552554
else
553-
data->affix=Conf->Spell[i].p.d.affix;
555+
data->affix=Conf->Spell[i]->p.d.affix;
554556
data->isword=1;
555557
if (strchr(Conf->AffixData[data->affix],Conf->compoundcontrol))
556558
data->compoundallow=1;
@@ -562,18 +564,16 @@ mkSPNode(IspellDict * Conf, int low, int high, int level)
562564
returnrs;
563565
}
564566

565-
566-
567567
void
568568
NISortDictionary(IspellDict*Conf)
569569
{
570570
size_ti;
571571
intnaffix=3;
572572

573573
/* compress affixes */
574-
qsort((void*)Conf->Spell,Conf->nspell,sizeof(SPELL),cmpspellaffix);
574+
qsort((void*)Conf->Spell,Conf->nspell,sizeof(SPELL*),cmpspellaffix);
575575
for (i=1;i<Conf->nspell;i++)
576-
if (strcmp(Conf->Spell[i].p.flag,Conf->Spell[i-1].p.flag))
576+
if (strcmp(Conf->Spell[i]->p.flag,Conf->Spell[i-1]->p.flag))
577577
naffix++;
578578

579579
Conf->AffixData= (char**)malloc(naffix*sizeof(char*));
@@ -582,28 +582,28 @@ NISortDictionary(IspellDict * Conf)
582582
naffix=1;
583583
Conf->AffixData[0]=strdup("");
584584
MEMOUT(Conf->AffixData[0]);
585-
Conf->AffixData[1]=strdup(Conf->Spell[0].p.flag);
585+
Conf->AffixData[1]=strdup(Conf->Spell[0]->p.flag);
586586
MEMOUT(Conf->AffixData[1]);
587-
Conf->Spell[0].p.d.affix=1;
588-
Conf->Spell[0].p.d.len=strlen(Conf->Spell[0].word);
587+
Conf->Spell[0]->p.d.affix=1;
588+
Conf->Spell[0]->p.d.len=strlen(Conf->Spell[0]->word);
589589
for (i=1;i<Conf->nspell;i++)
590590
{
591-
if (strcmp(Conf->Spell[i].p.flag,Conf->AffixData[naffix]))
591+
if (strcmp(Conf->Spell[i]->p.flag,Conf->AffixData[naffix]))
592592
{
593593
naffix++;
594-
Conf->AffixData[naffix]=strdup(Conf->Spell[i].p.flag);
594+
Conf->AffixData[naffix]=strdup(Conf->Spell[i]->p.flag);
595595
MEMOUT(Conf->AffixData[naffix]);
596596
}
597-
Conf->Spell[i].p.d.affix=naffix;
598-
Conf->Spell[i].p.d.len=strlen(Conf->Spell[i].word);
597+
Conf->Spell[i]->p.d.affix=naffix;
598+
Conf->Spell[i]->p.d.len=strlen(Conf->Spell[i]->word);
599599
}
600600

601-
qsort((void*)Conf->Spell,Conf->nspell,sizeof(SPELL),cmpspell);
601+
qsort((void*)Conf->Spell,Conf->nspell,sizeof(SPELL*),cmpspell);
602602
Conf->Dictionary=mkSPNode(Conf,0,Conf->nspell,0);
603603

604604
for (i=0;i<Conf->nspell;i++)
605-
free(Conf->Spell[i].word);
606-
free(Conf->Spell);
605+
pfree(Conf->Spell[i]);
606+
pfree(Conf->Spell);
607607
Conf->Spell=NULL;
608608
}
609609

@@ -724,7 +724,6 @@ NISortAffixes(IspellDict * Conf)
724724

725725
if (Conf->naffixes>1)
726726
qsort((void*)Conf->Affix,Conf->naffixes,sizeof(AFFIX),cmpaffix);
727-
728727
Conf->CompoundAffix=ptr= (CMPDAffix*)malloc(sizeof(CMPDAffix)*Conf->naffixes);
729728
MEMOUT(Conf->CompoundAffix);
730729
ptr->affix=NULL;
@@ -803,7 +802,7 @@ FinfAffixes(AffixNode * node, const char *word, int wrdlen, int *level, int type
803802
}
804803

805804
staticchar*
806-
CheckAffix(constchar*word,size_tlen,AFFIX*Affix,charflagflags,char*newword)
805+
CheckAffix(constchar*word,size_tlen,AFFIX*Affix,charflagflags,char*newword,int*baselen)
807806
{
808807

809808
if (flagflags&FF_COMPOUNDONLYAFX)
@@ -821,9 +820,15 @@ CheckAffix(const char *word, size_t len, AFFIX * Affix, char flagflags, char *ne
821820
{
822821
strcpy(newword,word);
823822
strcpy(newword+len-Affix->replen,Affix->find);
823+
if (baselen )/* store length of non-changed part of word */
824+
*baselen=len-Affix->replen;
824825
}
825826
else
826827
{
828+
/* if prefix is a all non-chaged part's length then all word contains only prefix and suffix,
829+
so out */
830+
if (baselen&&*baselen+strlen(Affix->find) <=Affix->replen )
831+
returnNULL;
827832
strcpy(newword,Affix->find);
828833
strcat(newword,word+Affix->replen);
829834
}
@@ -927,7 +932,7 @@ NormalizeSubWord(IspellDict * Conf, char *word, char flag)
927932
break;
928933
for (j=0;j<prefix->naff;j++)
929934
{
930-
if (CheckAffix(word,wrdlen,prefix->aff[j],flag,newword))
935+
if (CheckAffix(word,wrdlen,prefix->aff[j],flag,newword,NULL))
931936
{
932937
/* prefix success */
933938
if (FindWord(Conf,newword,prefix->aff[j]->flag,flag&FF_COMPOUNDWORD)&& (cur-forms)< (MAX_NORM-1))
@@ -948,14 +953,16 @@ NormalizeSubWord(IspellDict * Conf, char *word, char flag)
948953
*/
949954
while (snode)
950955
{
956+
intbaselen=0;
957+
951958
/* find possible suffix */
952959
suffix=FinfAffixes(snode,word,wrdlen,&slevel,FF_SUFFIX);
953960
if (!suffix)
954961
break;
955962
/* foreach suffix check affix */
956963
for (i=0;i<suffix->naff;i++)
957964
{
958-
if (CheckAffix(word,wrdlen,suffix->aff[i],flag,newword))
965+
if (CheckAffix(word,wrdlen,suffix->aff[i],flag,newword,&baselen))
959966
{
960967
/* suffix success */
961968
if (FindWord(Conf,newword,suffix->aff[i]->flag,flag&FF_COMPOUNDWORD)&& (cur-forms)< (MAX_NORM-1))
@@ -976,7 +983,7 @@ NormalizeSubWord(IspellDict * Conf, char *word, char flag)
976983
break;
977984
for (j=0;j<prefix->naff;j++)
978985
{
979-
if (CheckAffix(newword,swrdlen,prefix->aff[j],flag,pnewword))
986+
if (CheckAffix(newword,swrdlen,prefix->aff[j],flag,pnewword,&baselen))
980987
{
981988
/* prefix success */
982989
intff= (prefix->aff[j]->flagflags&suffix->aff[i]->flagflags&FF_CROSSPRODUCT) ?
@@ -1323,15 +1330,15 @@ NIFree(IspellDict * Conf)
13231330
else
13241331
pg_regfree(&(Affix[i].reg.regex));
13251332
}
1326-
free(Affix[i].mask);
1327-
free(Affix[i].find);
1328-
free(Affix[i].repl);
1333+
if (Affix[i].mask!=VoidString )free(Affix[i].mask);
1334+
if (Affix[i].find!=VoidString )free(Affix[i].find);
1335+
if (Affix[i].repl!=VoidString )free(Affix[i].repl);
13291336
}
13301337
if (Conf->Spell)
13311338
{
13321339
for (i=0;i<Conf->nspell;i++)
1333-
free(Conf->Spell[i].word);
1334-
free(Conf->Spell);
1340+
pfree(Conf->Spell[i]->word);
1341+
pfree(Conf->Spell);
13351342
}
13361343

13371344
if (Conf->Affix)

‎contrib/tsearch2/ispell/spell.h

Lines changed: 5 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -32,7 +32,6 @@ typedef struct SPNode
3232

3333
typedefstructspell_struct
3434
{
35-
char*word;
3635
union
3736
{
3837
charflag[16];
@@ -41,9 +40,12 @@ typedef struct spell_struct
4140
intaffix;
4241
intlen;
4342
}d;
44-
}p;
43+
}p;
44+
charword[1];
4545
}SPELL;
4646

47+
#defineSPELLHDRSZ(offsetof(SPELL, word))
48+
4749
typedefstructaff_struct
4850
{
4951
uint32
@@ -106,7 +108,7 @@ typedef struct
106108

107109
intnspell;
108110
intmspell;
109-
SPELL*Spell;
111+
SPELL**Spell;
110112

111113
AffixNode*Suffix;
112114
AffixNode*Prefix;

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