Function appendStringLiteralConn

src/fe_utils/string_utils.c:466–492

* Convert a string value to an SQL string literal and append it to * the given buffer. Encoding and string syntax rules are as indicated * by current settings of the PGconn. */

 * by current settings of the PGconn.
 */
void
appendStringLiteralConn(PQExpBuffer buf, const char *str, PGconn *conn)
{
	size_t		length = strlen(str);

	/*
	 * XXX This is a kluge to silence escape_string_warning in our utility
	 * programs.  It should go away someday.
	 */
	if (strchr(str, '\\') != NULL && PQserverVersion(conn) >= 80100)
	{
		/* ensure we are not adjacent to an identifier */
		if (buf->len > 0 && buf->data[buf->len - 1] != ' ')
			appendPQExpBufferChar(buf, ' ');
		appendPQExpBufferChar(buf, ESCAPE_STRING_SYNTAX);
		appendStringLiteral(buf, str, PQclientEncoding(conn), false);
		return;
	}
	/* XXX end kluge */

	if (!enlargePQExpBuffer(buf, 2 * length + 2))
		return;
	appendPQExpBufferChar(buf, '\'');
	buf->len += PQescapeStringConn(conn, buf->data + buf->len,
								   str, length, NULL);
	appendPQExpBufferChar(buf, '\'');
}


/*