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Fix *escape* handling in copy_statement_with_parameters(was my fault).

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This commit is contained in:
Hiroshi Inoue
2001-06-18 02:16:09 +00:00
parent 6054b33290
commit 41c377f5c6
1 changed files with 23 additions and 20 deletions
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43
src/interfaces/odbc/convert.c
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@ -945,7 +945,7 @@ copy_statement_with_parameters(StatementClass *stmt)
int param_number;
Int2 param_ctype,
param_sqltype;
char *old_statement = stmt->statement;
char *old_statement = stmt->statement, oldchar;
char *new_statement = stmt->stmt_with_params;
unsigned int new_stsize = 0;
SIMPLE_TIME st;
@ -999,10 +999,11 @@ copy_statement_with_parameters(StatementClass *stmt)
for (opos = 0; opos < oldstmtlen; opos++)
{
oldchar = old_statement[opos];
#ifdef MULTIBYTE
if (multibyte_char_check(old_statement[opos]) != 0)
if (multibyte_char_check(oldchar) != 0)
{
CVT_APPEND_CHAR(old_statement[opos]);
CVT_APPEND_CHAR(oldchar);
continue;
}
/*
@ -1010,35 +1011,37 @@ copy_statement_with_parameters(StatementClass *stmt)
* 1-byte character.
*/
#endif
/* Squeeze carriage-return/linefeed pairs to linefeed only */
if (old_statement[opos] == '\r' && opos + 1 < oldstmtlen &&
old_statement[opos + 1] == '\n')
continue;
else if (in_escape) /* escape check */
if (in_escape) /* escape check */
{
in_escape = FALSE;
CVT_APPEND_CHAR(old_statement[opos]);
CVT_APPEND_CHAR(oldchar);
continue;
}
else if (in_quote || in_dquote) /* quote/double quote check */
{
if (old_statement[opos] == '\'' && in_quote)
if (oldchar == '\\')
in_escape = TRUE;
else if (oldchar == '\'' && in_quote)
in_quote = FALSE;
else if (old_statement[opos] == '\"' && in_dquote)
else if (oldchar == '\"' && in_dquote)
in_dquote = FALSE;
CVT_APPEND_CHAR(old_statement[opos]);
CVT_APPEND_CHAR(oldchar);
continue;
}
/*
* From here we are guranteed to be in neither
* an escape nor a quote nor a double quote.
* an escape, a quote nor a double quote.
*/
/* Squeeze carriage-return/linefeed pairs to linefeed only */
else if (oldchar == '\r' && opos + 1 < oldstmtlen &&
old_statement[opos + 1] == '\n')
continue;
/*
* Handle literals (date, time, timestamp) and ODBC scalar
* functions
*/
else if (old_statement[opos] == '{')
else if (oldchar == '{')
{
char *esc;
char *begin = &old_statement[opos + 1];
@ -1064,7 +1067,7 @@ copy_statement_with_parameters(StatementClass *stmt)
else
{ /* it's not a valid literal so just copy */
*end = '}';
CVT_APPEND_CHAR(old_statement[opos]);
CVT_APPEND_CHAR(oldchar);
continue;
}
@ -1078,15 +1081,15 @@ copy_statement_with_parameters(StatementClass *stmt)
* so. All the queries I've seen expect the driver to put quotes
* if needed.
*/
else if (old_statement[opos] == '?')
else if (oldchar == '?')
; /* ok */
else
{
if (old_statement[opos] == '\'')
if (oldchar == '\'')
in_quote = TRUE;
else if (old_statement[opos] == '\\')
else if (oldchar == '\\')
in_escape = TRUE;
else if (old_statement[opos] == '\"')
else if (oldchar == '\"')
in_dquote = TRUE;
else if (check_select_into && /* select into check */
opos > 0 &&
@ -1097,7 +1100,7 @@ copy_statement_with_parameters(StatementClass *stmt)
memmove(new_statement, new_statement + declare_pos, npos - declare_pos);
npos -= declare_pos;
}
CVT_APPEND_CHAR(old_statement[opos]);
CVT_APPEND_CHAR(oldchar);
continue;
}