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Diffstat (limited to 'contrib/test_parser/test_parser.c')
-rw-r--r--contrib/test_parser/test_parser.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/contrib/test_parser/test_parser.c b/contrib/test_parser/test_parser.c
index c27d7d31f4f..da7f04c6e05 100644
--- a/contrib/test_parser/test_parser.c
+++ b/contrib/test_parser/test_parser.c
@@ -73,31 +73,32 @@ testprs_getlexeme(PG_FUNCTION_ARGS)
ParserState *pst = (ParserState *) PG_GETARG_POINTER(0);
char **t = (char **) PG_GETARG_POINTER(1);
int *tlen = (int *) PG_GETARG_POINTER(2);
+ int startpos = pst->pos;
int type;
- *tlen = pst->pos;
*t = pst->buffer + pst->pos;
- if ((pst->buffer)[pst->pos] == ' ')
+ if (pst->pos < pst->len &&
+ (pst->buffer)[pst->pos] == ' ')
{
/* blank type */
type = 12;
- /* go to the next non-white-space character */
- while ((pst->buffer)[pst->pos] == ' ' &&
- pst->pos < pst->len)
+ /* go to the next non-space character */
+ while (pst->pos < pst->len &&
+ (pst->buffer)[pst->pos] == ' ')
(pst->pos)++;
}
else
{
/* word type */
type = 3;
- /* go to the next white-space character */
- while ((pst->buffer)[pst->pos] != ' ' &&
- pst->pos < pst->len)
+ /* go to the next space character */
+ while (pst->pos < pst->len &&
+ (pst->buffer)[pst->pos] != ' ')
(pst->pos)++;
}
- *tlen = pst->pos - *tlen;
+ *tlen = pst->pos - startpos;
/* we are finished if (*tlen == 0) */
if (*tlen == 0)