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Use '' rather than \' for literal single quotes in strings in 

/contrib/tsearch2.

Teodor Sigaev
This commit is contained in:
Bruce Momjian 2006-09-02 22:03:30 +00:00
parent 4b636e35a5
commit 0c4f2894f9
3 changed files with 43 additions and 28 deletions
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12
contrib/tsearch2/expected/tsearch2.out
View File

@ -59,25 +59,25 @@ SELECT '''1 2'''::tsvector;
SELECT E'''1 \\''2'''::tsvector;
tsvector
----------
'1 \'2'
'1 ''2'
(1 row)
SELECT E'''1 \\''2''3'::tsvector;
tsvector
-------------
'3' '1 \'2'
'3' '1 ''2'
(1 row)
SELECT E'''1 \\''2'' 3'::tsvector;
tsvector
-------------
'3' '1 \'2'
'3' '1 ''2'
(1 row)
SELECT E'''1 \\''2'' '' 3'' 4 '::tsvector;
tsvector
------------------
'4' ' 3' '1 \'2'
'4' ' 3' '1 ''2'
(1 row)
select '''w'':4A,3B,2C,1D,5 a:8';
@ -138,7 +138,7 @@ SELECT '''1 2'''::tsquery;
SELECT E'''1 \\''2'''::tsquery;
tsquery
---------
'1 \'2'
'1 ''2'
(1 row)
SELECT '!1'::tsquery;
@ -336,7 +336,7 @@ SELECT '1&(2&(4&(5|!6)))'::tsquery;
SELECT E'1&(''2''&('' 4''&(\\|5 | ''6 \\'' !|&'')))'::tsquery;
tsquery
------------------------------------------
'1' & '2' & ' 4' & ( '|5' | '6 \' !|&' )
'1' & '2' & ' 4' & ( '|5' | '6 '' !|&' )
(1 row)
SELECT '''the wether'':dc & '' sKies '':BC & a:d b:a';

2
contrib/tsearch2/query.c
View File

@ -748,7 +748,7 @@ infix(INFIX * in, bool first)
{
if ( t_iseq(op, '\'') )
{
*(in->cur) = '\\';
*(in->cur) = '\'';
in->cur++;
}
COPYCHAR(in->cur,op);

47
contrib/tsearch2/tsvector.c
View File

@ -171,6 +171,7 @@ uniqueentry(WordEntryIN * a, int4 l, char *buf, int4 *outbuflen)
#define WAITPOSINFO 5
#define INPOSINFO 6
#define WAITPOSDELIM 7
#define WAITCHARCMPLX 8
#define RESIZEPRSBUF \
do { \
@ -270,21 +271,8 @@ gettoken_tsvector(TI_IN_STATE * state)
}
else if (state->state == WAITENDCMPLX)
{
if ( t_iseq(state->prsbuf, '\'') )
{
RESIZEPRSBUF;
*(state->curpos) = '\0';
if (state->curpos == state->word)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("syntax error")));
if (state->oprisdelim)
{
state->prsbuf+=pg_mblen(state->prsbuf);
return 1;
}
else
state->state = WAITPOSINFO;
if ( t_iseq(state->prsbuf, '\'') ) {
state->state = WAITCHARCMPLX;
}
else if ( t_iseq(state->prsbuf, '\\') )
{
@ -302,6 +290,31 @@ gettoken_tsvector(TI_IN_STATE * state)
state->curpos+=pg_mblen(state->prsbuf);
}
}
else if (state->state == WAITCHARCMPLX)
{
if ( t_iseq(state->prsbuf, '\'') )
{
RESIZEPRSBUF;
COPYCHAR(state->curpos, state->prsbuf);
state->curpos+=pg_mblen(state->prsbuf);
state->state = WAITENDCMPLX;
} else {
RESIZEPRSBUF;
*(state->curpos) = '\0';
if (state->curpos == state->word)
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("syntax error")));
if (state->oprisdelim)
{
/* state->prsbuf+=pg_mblen(state->prsbuf); */
return 1;
}
else
state->state = WAITPOSINFO;
continue; /* recheck current character */
}
}
else if (state->state == WAITPOSINFO)
{
if ( t_iseq(state->prsbuf, ':') )
@ -385,6 +398,8 @@ gettoken_tsvector(TI_IN_STATE * state)
else
/* internal error */
elog(ERROR, "internal error");
/* get next char */
state->prsbuf+=pg_mblen(state->prsbuf);
}
@ -529,7 +544,7 @@ tsvector_out(PG_FUNCTION_ARGS)
outbuf = (char *) repalloc((void *) outbuf, ++lenbuf);
curout = outbuf + pos;
*curout++ = '\\';
*curout++ = '\'';
}
while(len--)
*curout++ = *curin++;