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Diffstat (limited to 'src/backend/utils/adt/varlena.c')
-rw-r--r--src/backend/utils/adt/varlena.c55
1 files changed, 28 insertions, 27 deletions
diff --git a/src/backend/utils/adt/varlena.c b/src/backend/utils/adt/varlena.c
index c2119edcecc..cbfcf52ffe3 100644
--- a/src/backend/utils/adt/varlena.c
+++ b/src/backend/utils/adt/varlena.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/adt/varlena.c,v 1.143 2006/02/26 02:23:41 neilc Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/adt/varlena.c,v 1.144 2006/03/01 06:51:01 neilc Exp $
*
*-------------------------------------------------------------------------
*/
@@ -2038,7 +2038,7 @@ replace_text(PG_FUNCTION_ARGS)
text *buf_text;
text *ret_text;
int curr_posn;
- StringInfo str;
+ StringInfoData str;
if (src_text_len == 0 || from_sub_text_len == 0)
PG_RETURN_TEXT_P(src_text);
@@ -2049,7 +2049,7 @@ replace_text(PG_FUNCTION_ARGS)
if (curr_posn == 0)
PG_RETURN_TEXT_P(src_text);
- str = makeStringInfo();
+ initStringInfo(&str);
buf_text = src_text;
while (curr_posn > 0)
@@ -2059,8 +2059,8 @@ replace_text(PG_FUNCTION_ARGS)
right_text = text_substring(PointerGetDatum(buf_text),
curr_posn + from_sub_text_len, -1, true);
- appendStringInfoText(str, left_text);
- appendStringInfoText(str, to_sub_text);
+ appendStringInfoText(&str, left_text);
+ appendStringInfoText(&str, to_sub_text);
if (buf_text != src_text)
pfree(buf_text);
@@ -2069,13 +2069,12 @@ replace_text(PG_FUNCTION_ARGS)
curr_posn = TEXTPOS(buf_text, from_sub_text);
}
- appendStringInfoText(str, buf_text);
+ appendStringInfoText(&str, buf_text);
if (buf_text != src_text)
pfree(buf_text);
- ret_text = PG_STR_GET_TEXT(str->data);
- pfree(str->data);
- pfree(str);
+ ret_text = PG_STR_GET_TEXT(str.data);
+ pfree(str.data);
PG_RETURN_TEXT_P(ret_text);
}
@@ -2227,8 +2226,7 @@ replace_text_regexp(text *src_text, void *regexp,
text *ret_text;
regex_t *re = (regex_t *) regexp;
int src_text_len = VARSIZE(src_text) - VARHDRSZ;
- StringInfo str = makeStringInfo();
- int regexec_result;
+ StringInfoData buf;
regmatch_t pmatch[REGEXP_REPLACE_BACKREF_CNT];
pg_wchar *data;
size_t data_len;
@@ -2236,6 +2234,8 @@ replace_text_regexp(text *src_text, void *regexp,
int data_pos;
bool have_escape;
+ initStringInfo(&buf);
+
/* Convert data string to wide characters. */
data = (pg_wchar *) palloc((src_text_len + 1) * sizeof(pg_wchar));
data_len = pg_mb2wchar_with_len(VARDATA(src_text), data, src_text_len);
@@ -2245,6 +2245,8 @@ replace_text_regexp(text *src_text, void *regexp,
for (search_start = data_pos = 0; search_start <= data_len;)
{
+ int regexec_result;
+
regexec_result = pg_regexec(re,
data,
data_len,
@@ -2254,20 +2256,19 @@ replace_text_regexp(text *src_text, void *regexp,
pmatch,
0);
- if (regexec_result != REG_OKAY && regexec_result != REG_NOMATCH)
+ if (regexec_result == REG_NOMATCH)
+ break;
+
+ if (regexec_result != REG_OKAY)
{
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)));
}
- if (regexec_result == REG_NOMATCH)
- break;
-
/*
* Copy the text to the left of the match position. Because we are
* working with character not byte indexes, it's easiest to use
@@ -2281,7 +2282,7 @@ replace_text_regexp(text *src_text, void *regexp,
data_pos + 1,
pmatch[0].rm_so - data_pos,
false);
- appendStringInfoText(str, left_text);
+ appendStringInfoText(&buf, left_text);
pfree(left_text);
}
@@ -2290,9 +2291,9 @@ replace_text_regexp(text *src_text, void *regexp,
* replace_text has escape characters.
*/
if (have_escape)
- appendStringInfoRegexpSubstr(str, replace_text, pmatch, src_text);
+ appendStringInfoRegexpSubstr(&buf, replace_text, pmatch, src_text);
else
- appendStringInfoText(str, replace_text);
+ appendStringInfoText(&buf, replace_text);
search_start = data_pos = pmatch[0].rm_eo;
@@ -2318,13 +2319,12 @@ replace_text_regexp(text *src_text, void *regexp,
right_text = text_substring(PointerGetDatum(src_text),
data_pos + 1, -1, true);
- appendStringInfoText(str, right_text);
+ appendStringInfoText(&buf, right_text);
pfree(right_text);
}
- ret_text = PG_STR_GET_TEXT(str->data);
- pfree(str->data);
- pfree(str);
+ ret_text = PG_STR_GET_TEXT(buf.data);
+ pfree(buf.data);
pfree(data);
return ret_text;
@@ -2512,7 +2512,7 @@ array_to_text(PG_FUNCTION_ARGS)
int typlen;
bool typbyval;
char typalign;
- StringInfo result_str = makeStringInfo();
+ StringInfoData buf;
bool printed = false;
char *p;
bits8 *bitmap;
@@ -2529,6 +2529,7 @@ array_to_text(PG_FUNCTION_ARGS)
PG_RETURN_TEXT_P(PG_STR_GET_TEXT(""));
element_type = ARR_ELEMTYPE(v);
+ initStringInfo(&buf);
/*
* We arrange to look up info about element type, including its output
@@ -2583,9 +2584,9 @@ array_to_text(PG_FUNCTION_ARGS)
itemvalue));
if (printed)
- appendStringInfo(result_str, "%s%s", fldsep, value);
+ appendStringInfo(&buf, "%s%s", fldsep, value);
else
- appendStringInfoString(result_str, value);
+ appendStringInfoString(&buf, value);
printed = true;
p = att_addlength(p, typlen, PointerGetDatum(p));
@@ -2604,7 +2605,7 @@ array_to_text(PG_FUNCTION_ARGS)
}
}
- PG_RETURN_TEXT_P(PG_STR_GET_TEXT(result_str->data));
+ PG_RETURN_TEXT_P(PG_STR_GET_TEXT(buf.data));
}
#define HEXBASE 16
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-23 04:05:14 +0000