*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/adt/varlena.c,v 1.135 2005/09/24 17:53:16 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/adt/varlena.c,v 1.136 2005/10/15 02:49:30 momjian Exp $
*
*-------------------------------------------------------------------------
*/
else
{
/*
- * We should never get here. The first pass should not allow
- * it.
+ * We should never get here. The first pass should not allow it.
*/
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
{
S1 = Max(S, 1);
- if (length_not_specified) /* special case - get length to
- * end of string */
+ if (length_not_specified) /* special case - get length to end of
+ * string */
L1 = -1;
else
{
int E = S + length;
/*
- * A negative value for L is the only way for the end position
- * to be before the start. SQL99 says to throw an error.
+ * A negative value for L is the only way for the end position to
+ * be before the start. SQL99 says to throw an error.
*/
if (E < S)
ereport(ERROR,
(errcode(ERRCODE_SUBSTRING_ERROR),
- errmsg("negative substring length not allowed")));
+ errmsg("negative substring length not allowed")));
/*
- * A zero or negative value for the end position can happen if
- * the start was negative or one. SQL99 says to return a
- * zero-length string.
+ * A zero or negative value for the end position can happen if the
+ * start was negative or one. SQL99 says to return a zero-length
+ * string.
*/
if (E < 1)
return PG_STR_GET_TEXT("");
}
/*
- * If the start position is past the end of the string, SQL99 says
- * to return a zero-length string -- PG_GETARG_TEXT_P_SLICE() will
- * do that for us. Convert to zero-based starting position
+ * If the start position is past the end of the string, SQL99 says to
+ * return a zero-length string -- PG_GETARG_TEXT_P_SLICE() will do
+ * that for us. Convert to zero-based starting position
*/
return DatumGetTextPSlice(str, S1 - 1, L1);
}
{
/*
* When encoding max length is > 1, we can't get LC without
- * detoasting, so we'll grab a conservatively large slice now and
- * go back later to do the right thing
+ * detoasting, so we'll grab a conservatively large slice now and go
+ * back later to do the right thing
*/
int32 slice_start;
int32 slice_size;
text *ret;
/*
- * if S is past the end of the string, the tuple toaster will
- * return a zero-length string to us
+ * if S is past the end of the string, the tuple toaster will return a
+ * zero-length string to us
*/
S1 = Max(S, 1);
/*
- * We need to start at position zero because there is no way to
- * know in advance which byte offset corresponds to the supplied
- * start position.
+ * We need to start at position zero because there is no way to know
+ * in advance which byte offset corresponds to the supplied start
+ * position.
*/
slice_start = 0;
- if (length_not_specified) /* special case - get length to
- * end of string */
+ if (length_not_specified) /* special case - get length to end of
+ * string */
slice_size = L1 = -1;
else
{
int E = S + length;
/*
- * A negative value for L is the only way for the end position
- * to be before the start. SQL99 says to throw an error.
+ * A negative value for L is the only way for the end position to
+ * be before the start. SQL99 says to throw an error.
*/
if (E < S)
ereport(ERROR,
(errcode(ERRCODE_SUBSTRING_ERROR),
- errmsg("negative substring length not allowed")));
+ errmsg("negative substring length not allowed")));
/*
- * A zero or negative value for the end position can happen if
- * the start was negative or one. SQL99 says to return a
- * zero-length string.
+ * A zero or negative value for the end position can happen if the
+ * start was negative or one. SQL99 says to return a zero-length
+ * string.
*/
if (E < 1)
return PG_STR_GET_TEXT("");
L1 = E - S1;
/*
- * Total slice size in bytes can't be any longer than the
- * start position plus substring length times the encoding max
- * length.
+ * Total slice size in bytes can't be any longer than the start
+ * position plus substring length times the encoding max length.
*/
slice_size = (S1 + L1) * eml;
}
slice_strlen = pg_mbstrlen_with_len(VARDATA(slice), VARSIZE(slice) - VARHDRSZ);
/*
- * Check that the start position wasn't > slice_strlen. If so,
- * SQL99 says to return a zero-length string.
+ * Check that the start position wasn't > slice_strlen. If so, SQL99
+ * says to return a zero-length string.
*/
if (S1 > slice_strlen)
return PG_STR_GET_TEXT("");
/*
- * Adjust L1 and E1 now that we know the slice string length.
- * Again remember that S1 is one based, and slice_start is zero
- * based.
+ * Adjust L1 and E1 now that we know the slice string length. Again
+ * remember that S1 is one based, and slice_start is zero based.
*/
if (L1 > -1)
E1 = Min(S1 + L1, slice_start + 1 + slice_strlen);
E1 = slice_start + 1 + slice_strlen;
/*
- * Find the start position in the slice; remember S1 is not zero
- * based
+ * Find the start position in the slice; remember S1 is not zero based
*/
p = VARDATA(slice);
for (i = 0; i < S1 - 1; i++)
int result;
/*
- * Unfortunately, there is no strncoll(), so in the non-C locale case
- * we have to do some memory copying. This turns out to be
- * significantly slower, so we optimize the case where LC_COLLATE is
- * C. We also try to optimize relatively-short strings by avoiding
- * palloc/pfree overhead.
+ * Unfortunately, there is no strncoll(), so in the non-C locale case we
+ * have to do some memory copying. This turns out to be significantly
+ * slower, so we optimize the case where LC_COLLATE is C. We also try to
+ * optimize relatively-short strings by avoiding palloc/pfree overhead.
*/
if (lc_collate_is_c())
{
/* Win32 does not have UTF-8, so we need to map to UTF-16 */
if (GetDatabaseEncoding() == PG_UTF8)
{
- int a1len;
- int a2len;
- int r;
+ int a1len;
+ int a2len;
+ int r;
- if (len1 >= STACKBUFLEN/2)
+ if (len1 >= STACKBUFLEN / 2)
{
a1len = len1 * 2 + 2;
a1p = palloc(a1len);
a1len = STACKBUFLEN;
a1p = a1buf;
}
- if (len2 >= STACKBUFLEN/2)
+ if (len2 >= STACKBUFLEN / 2)
{
a2len = len2 * 2 + 2;
a2p = palloc(a2len);
else
{
r = MultiByteToWideChar(CP_UTF8, 0, arg1, len1,
- (LPWSTR) a1p, a1len/2);
+ (LPWSTR) a1p, a1len / 2);
if (!r)
ereport(ERROR,
(errmsg("could not convert string to UTF16: %lu",
else
{
r = MultiByteToWideChar(CP_UTF8, 0, arg2, len2,
- (LPWSTR) a2p, a2len/2);
+ (LPWSTR) a2p, a2len / 2);
if (!r)
ereport(ERROR,
(errmsg("could not convert string to UTF16: %lu",
errno = 0;
result = wcscoll((LPWSTR) a1p, (LPWSTR) a2p);
- if (result == 2147483647) /* _NLSCMPERROR; missing from mingw headers */
+ if (result == 2147483647) /* _NLSCMPERROR; missing from mingw
+ * headers */
ereport(ERROR,
(errmsg("could not compare unicode strings: %d",
errno)));
return result;
}
-#endif /* WIN32 */
+#endif /* WIN32 */
if (len1 >= STACKBUFLEN)
a1p = (char *) palloc(len1 + 1);
if (fcinfo->nargs == 2)
{
/*
- * Not passed a length - PG_GETARG_BYTEA_P_SLICE() grabs
- * everything to the end of the string if we pass it a negative
- * value for length.
+ * Not passed a length - PG_GETARG_BYTEA_P_SLICE() grabs everything to
+ * the end of the string if we pass it a negative value for length.
*/
L1 = -1;
}
int E = S + PG_GETARG_INT32(2);
/*
- * A negative value for L is the only way for the end position to
- * be before the start. SQL99 says to throw an error.
+ * A negative value for L is the only way for the end position to be
+ * before the start. SQL99 says to throw an error.
*/
if (E < S)
ereport(ERROR,
/*
* If the start position is past the end of the string, SQL99 says to
- * return a zero-length string -- PG_GETARG_TEXT_P_SLICE() will do
- * that for us. Convert to zero-based starting position
+ * return a zero-length string -- PG_GETARG_TEXT_P_SLICE() will do that
+ * for us. Convert to zero-based starting position
*/
PG_RETURN_BYTEA_P(PG_GETARG_BYTEA_P_SLICE(0, S1 - 1, L1));
}
/* Convert to C string (handles possible detoasting). */
/* Note we rely on being able to modify rawname below. */
rawname = DatumGetCString(DirectFunctionCall1(textout,
- PointerGetDatum(textval)));
+ PointerGetDatum(textval)));
if (!SplitIdentifierString(rawname, '.', &namelist))
ereport(ERROR,
return false; /* empty unquoted name not allowed */
/*
- * Downcase the identifier, using same code as main lexer
- * does.
+ * Downcase the identifier, using same code as main lexer does.
*
* XXX because we want to overwrite the input in-place, we cannot
- * support a downcasing transformation that increases the
- * string length. This is not a problem given the current
- * implementation of downcase_truncate_identifier, but we'll
- * probably have to do something about this someday.
+ * support a downcasing transformation that increases the string
+ * length. This is not a problem given the current implementation
+ * of downcase_truncate_identifier, but we'll probably have to do
+ * something about this someday.
*/
len = endp - curname;
downname = downcase_truncate_identifier(curname, len, false);
if (pg_database_encoding_max_length() == 1)
{
for (; p < p_end; p++)
- if (*p == '\\') return true;
+ if (*p == '\\')
+ return true;
}
else
{
for (; p < p_end; p += pg_mblen(p))
- if (*p == '\\') return true;
+ if (*p == '\\')
+ return true;
}
return false;
*/
static void
appendStringInfoRegexpSubstr(StringInfo str, text *replace_text,
- regmatch_t *pmatch, text *src_text)
+ regmatch_t *pmatch, text *src_text)
{
const char *p = VARDATA(replace_text);
const char *p_end = p + (VARSIZE(replace_text) - VARHDRSZ);
}
/*
- * Copy the text when there is a text in the left of escape char
- * or escape char is not found.
+ * Copy the text when there is a text in the left of escape char or
+ * escape char is not found.
*/
if (ch_cnt)
{
- text *append_text = text_substring(PointerGetDatum(replace_text),
- substr_start, ch_cnt, false);
+ text *append_text = text_substring(PointerGetDatum(replace_text),
+ substr_start, ch_cnt, false);
+
appendStringInfoText(str, append_text);
pfree(append_text);
}
substr_start += ch_cnt + 1;
- if (p >= p_end) /* When escape char is not found. */
+ if (p >= p_end) /* When escape char is not found. */
break;
/* See the next character of escape char. */
if (*p >= '1' && *p <= '9')
{
/* Use the back reference of regexp. */
- int idx = *p - '0';
+ int idx = *p - '0';
+
so = pmatch[idx].rm_so;
eo = pmatch[idx].rm_eo;
p++;
if (so != -1 && eo != -1)
{
/* Copy the text that is back reference of regexp. */
- text *append_text = text_substring(PointerGetDatum(src_text),
- so + 1, (eo - so), false);
+ text *append_text = text_substring(PointerGetDatum(src_text),
+ so + 1, (eo - so), false);
+
appendStringInfoText(str, append_text);
pfree(append_text);
}
text *ret_text;
text *src_text = PG_GETARG_TEXT_P(0);
int src_text_len = VARSIZE(src_text) - VARHDRSZ;
- regex_t *re = (regex_t *)PG_GETARG_POINTER(1);
+ regex_t *re = (regex_t *) PG_GETARG_POINTER(1);
text *replace_text = PG_GETARG_TEXT_P(2);
- bool global = PG_GETARG_BOOL(3);
+ bool global = PG_GETARG_BOOL(3);
StringInfo str = makeStringInfo();
int regexec_result;
regmatch_t pmatch[REGEXP_REPLACE_BACKREF_CNT];
data,
data_len,
search_start,
- NULL, /* no details */
+ NULL, /* no details */
REGEXP_REPLACE_BACKREF_CNT,
pmatch,
0);
if (regexec_result != REG_OKAY && regexec_result != REG_NOMATCH)
{
- char errMsg[100];
+ char errMsg[100];
/* re failed??? */
pg_regerror(regexec_result, re, errMsg, sizeof(errMsg));
ereport(ERROR,
- (errcode(ERRCODE_INVALID_REGULAR_EXPRESSION),
- errmsg("regular expression failed: %s", errMsg)));
+ (errcode(ERRCODE_INVALID_REGULAR_EXPRESSION),
+ errmsg("regular expression failed: %s", errMsg)));
}
if (regexec_result == REG_NOMATCH)
break;
- /*
- * Copy the text when there is a text in the left of matched position.
- */
+ /*
+ * Copy the text when there is a text in the left of matched position.
+ */
if (pmatch[0].rm_so - data_pos > 0)
{
- text *left_text = text_substring(PointerGetDatum(src_text),
- data_pos + 1,
- pmatch[0].rm_so - data_pos, false);
+ text *left_text = text_substring(PointerGetDatum(src_text),
+ data_pos + 1,
+ pmatch[0].rm_so - data_pos, false);
+
appendStringInfoText(str, left_text);
pfree(left_text);
}
}
/*
- * Copy the text when there is a text at the right of last matched
- * or regexp is not matched.
+ * Copy the text when there is a text at the right of last matched or
+ * regexp is not matched.
*/
if (data_pos < data_len)
{
- text *right_text = text_substring(PointerGetDatum(src_text),
- data_pos + 1, -1, true);
+ text *right_text = text_substring(PointerGetDatum(src_text),
+ data_pos + 1, -1, true);
+
appendStringInfoText(str, right_text);
pfree(right_text);
}
*/
if (fldsep_len < 1)
PG_RETURN_ARRAYTYPE_P(create_singleton_array(fcinfo, TEXTOID,
- CStringGetDatum(inputstring), 1));
+ CStringGetDatum(inputstring), 1));
/* start with end position holding the initial start position */
end_posn = 0;
if (fldnum == 1)
{
/*
- * first element return one element, 1D, array using the
- * input string
+ * first element return one element, 1D, array using the input
+ * string
*/
PG_RETURN_ARRAYTYPE_P(create_singleton_array(fcinfo, TEXTOID,
- CStringGetDatum(inputstring), 1));
+ CStringGetDatum(inputstring), 1));
}
else
{
/* otherwise create array and exit */
PG_RETURN_ARRAYTYPE_P(makeArrayResult(astate,
- CurrentMemoryContext));
+ CurrentMemoryContext));
}
}
else if (start_posn == 0)
/* interior field requested */
result_text = text_substring(PointerGetDatum(inputstring),
start_posn + fldsep_len,
- end_posn - start_posn - fldsep_len,
+ end_posn - start_posn - fldsep_len,
false);
}
/*
* We arrange to look up info about element type, including its output
- * conversion proc, only once per series of calls, assuming the
- * element type doesn't change underneath us.
+ * conversion proc, only once per series of calls, assuming the element
+ * type doesn't change underneath us.
*/
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
if (my_extra == NULL)
{
fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
- sizeof(ArrayMetaState));
+ sizeof(ArrayMetaState));
my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
my_extra->element_type = InvalidOid;
}
if (my_extra->element_type != element_type)
{
/*
- * Get info about element type, including its output conversion
- * proc
+ * Get info about element type, including its output conversion proc
*/
get_type_io_data(element_type, IOFunc_output,
&my_extra->typlen, &my_extra->typbyval,
{
text *in_text = PG_GETARG_TEXT_P(0);
size_t len;
- char hexsum[MD5_HASH_LEN + 1];
+ char hexsum[MD5_HASH_LEN + 1];
text *result_text;
/* Calculate the length of the buffer using varlena metadata */
if (fcinfo->flinfo->fn_extra == NULL)
{
/* Lookup the datatype of the supplied argument */
- Oid argtypeid = get_fn_expr_argtype(fcinfo->flinfo, 0);
+ Oid argtypeid = get_fn_expr_argtype(fcinfo->flinfo, 0);
typlen = get_typlen(argtypeid);
if (typlen == 0) /* should not happen */
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