5.26 PLVtkn: Token Table Interface

Chapter 5
PL/Vision Package Specifications

 

---

The PLVtkn (PL/Vision ToKeN) package provides an interface to the PLV_token table; the package examines this table to determine whether an identifier is a keyword. See Chapter 10 for details.

5.26.1 Package constants

c_any CONSTANT CHAR(1) := '%';

c_syntax CONSTANT CHAR(1) := 'X';

c_builtin CONSTANT CHAR(1) := 'B';

c_symbol CONSTANT CHAR(1) := 'S';

c_exception CONSTANT CHAR(1) := 'E';

c_datatype CONSTANT CHAR(1) := 'D';

c_datadict CONSTANT CHAR(2) := 'DD';

c_sql CONSTANT CHAR(3) := 'SQL';

Each of these constants specify a different type of token or reserved word in the PL/SQL language (except for c_any, of course). They match the values found in the PLV_token_type table. They are used by various programs in the PLVtkn package.

c_plsql CONSTANT CHAR(1) := '%'; /* = c_builtin */

c_od2k CONSTANT CHAR(4) := 'OD2K';

c_of CONSTANT CHAR(2) := 'OF';

c_or CONSTANT CHAR(2) := 'OR';

c_og CONSTANT CHAR(2) := 'OG';

These constants identify different categories or sets of reserved words for the PL/SQL language. The identifier SHOW_ALERT is, for example, a builtin in Oracle Forms, but has no significance in the stored PL/SQL code. Currently PL/Vision is aware of stored PL/SQL and Oracle Forms reserved words only.