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authorunknown <serg@serg.mysql.com>2001-11-22 19:35:35 +0100
committerunknown <serg@serg.mysql.com>2001-11-22 19:35:35 +0100
commit8b5eedb7255ac34cee3e441e8dd88b875ee5dc08 (patch)
tree88c2bdef4a2fa66c208f59cf2e0300ebd491fcf9 /myisam/ft_parser.c
parent198df9007eaaf1aacbdff6c3e6b438bfd013a66c (diff)
downloadmariadb-git-8b5eedb7255ac34cee3e441e8dd88b875ee5dc08.tar.gz
ft_boolean_syntax variable
myisam/ft_nlq_search.c: comments cleanup
Diffstat (limited to 'myisam/ft_parser.c')
-rw-r--r--myisam/ft_parser.c38
1 files changed, 18 insertions, 20 deletions
diff --git a/myisam/ft_parser.c b/myisam/ft_parser.c
index b09ede78364..35e5959b556 100644
--- a/myisam/ft_parser.c
+++ b/myisam/ft_parser.c
@@ -33,9 +33,6 @@ typedef struct st_ft_docstat {
double max, nsum, nsum2;
#endif /* EVAL_RUN */
-// MI_INFO *info;
-// uint keynr;
-// byte *keybuf;
} FT_DOCSTAT;
static int FT_WORD_cmp(void* cmp_arg, FT_WORD *w1, FT_WORD *w2)
@@ -63,9 +60,7 @@ static int walk_and_copy(FT_WORD *word,uint32 count,FT_DOCSTAT *docstat)
/* transforms tree of words into the array, applying normalization */
-FT_WORD * ft_linearize(//MI_INFO *info, uint keynr,
- //byte *keybuf,
- TREE *wtree)
+FT_WORD * ft_linearize(TREE *wtree)
{
FT_WORD *wlist,*p;
FT_DOCSTAT docstat;
@@ -74,9 +69,6 @@ FT_WORD * ft_linearize(//MI_INFO *info, uint keynr,
if ((wlist=(FT_WORD *) my_malloc(sizeof(FT_WORD)*
(1+wtree->elements_in_tree),MYF(0))))
{
-// docstat.info=info;
-// docstat.keynr=keynr;
-// docstat.keybuf=keybuf;
docstat.list=wlist;
docstat.uniq=wtree->elements_in_tree;
#ifdef EVAL_RUN
@@ -122,12 +114,20 @@ FT_WORD * ft_linearize(//MI_INFO *info, uint keynr,
#endif
#define word_char(X) (true_word_char(X) || misc_word_char(X))
+
+/* returns:
+ * 0 - eof
+ * 1 - word found
+ * 2 - left bracket
+ * 3 - right bracket
+ */
byte ft_get_word(byte **start, byte *end, FT_WORD *word, FTB_PARAM *param)
{
byte *doc=*start;
int mwc;
- param->yesno=param->plusminus=param->pmsign=0;
+ param->yesno=(FTB_YES==' ')?1:0;
+ param->plusminus=param->pmsign=0;
while (doc<end)
{
@@ -138,18 +138,16 @@ byte ft_get_word(byte **start, byte *end, FT_WORD *word, FTB_PARAM *param)
{
/* param->prev=' '; */
*start=doc+1;
- return *doc;
+ return (*doc == FTB_RBR)+2;
}
if (param->prev == ' ')
{
- switch (*doc) {
- case FTB_YES: param->yesno=+1; continue;
- case FTB_NO: param->yesno=-1; continue;
- case FTB_INC: param->plusminus++; continue;
- case FTB_DEC: param->plusminus--; continue;
- case FTB_NEG: param->pmsign=!param->pmsign; continue;
- default: break;
- }
+ if (*doc == FTB_YES ) { param->yesno=+1; continue; } else
+ if (*doc == FTB_EGAL) { param->yesno= 0; continue; } else
+ if (*doc == FTB_NO ) { param->yesno=-1; continue; } else
+ if (*doc == FTB_INC ) { param->plusminus++; continue; } else
+ if (*doc == FTB_DEC ) { param->plusminus--; continue; } else
+ if (*doc == FTB_NEG ) { param->pmsign=!param->pmsign; continue; }
}
param->prev=*doc;
param->yesno=param->plusminus=param->pmsign=0;
@@ -162,7 +160,7 @@ byte ft_get_word(byte **start, byte *end, FT_WORD *word, FTB_PARAM *param)
else if (!misc_word_char(*doc) || mwc++)
break;
- param->prev='A'; // be sure *prev is true_word_char
+ param->prev='A'; /* be sure *prev is true_word_char */
word->len= (uint)(doc-word->pos) - mwc;
if ((param->trunc=(doc<end && *doc == FTB_TRUNC)))
doc++;