**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.211 2006/12/16 16:25:15 drh Exp $
*/

// All token codes are small integers with #defines that begin with "TK_"
%token_prefix TK_

// The type of the data attached to each token is Token.  This is also the
// default type for non-terminals.
................................................................................
// "carglist" is a list of additional constraints that come after the
// column name and column type in a CREATE TABLE statement.
//
carglist ::= carglist carg.
carglist ::= .
carg ::= CONSTRAINT nm ccons.
carg ::= ccons.
carg ::= DEFAULT term(X).            {sqlite3AddDefaultValue(pParse,X);}
carg ::= DEFAULT LP expr(X) RP.      {sqlite3AddDefaultValue(pParse,X);}
carg ::= DEFAULT PLUS term(X).       {sqlite3AddDefaultValue(pParse,X);}
carg ::= DEFAULT MINUS term(X).      {
  Expr *p = sqlite3Expr(TK_UMINUS, X, 0, 0);
  sqlite3AddDefaultValue(pParse,p);
}
carg ::= DEFAULT id(X).              {
  Expr *p = sqlite3Expr(TK_STRING, 0, 0, &X);
  sqlite3AddDefaultValue(pParse,p);
}

// In addition to the type name, we also care about the primary key and
// UNIQUE constraints.
//

**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.212 2006/12/20 02:15:00 drh Exp $
*/

// All token codes are small integers with #defines that begin with "TK_"
%token_prefix TK_

// The type of the data attached to each token is Token.  This is also the
// default type for non-terminals.
................................................................................
// "carglist" is a list of additional constraints that come after the
// column name and column type in a CREATE TABLE statement.
//
carglist ::= carglist carg.
carglist ::= .
carg ::= CONSTRAINT nm ccons.
carg ::= ccons.
ccons ::= DEFAULT term(X).            {sqlite3AddDefaultValue(pParse,X);}
ccons ::= DEFAULT LP expr(X) RP.      {sqlite3AddDefaultValue(pParse,X);}
ccons ::= DEFAULT PLUS term(X).       {sqlite3AddDefaultValue(pParse,X);}
ccons ::= DEFAULT MINUS term(X).      {
  Expr *p = sqlite3Expr(TK_UMINUS, X, 0, 0);
  sqlite3AddDefaultValue(pParse,p);
}
ccons ::= DEFAULT id(X).              {
  Expr *p = sqlite3Expr(TK_STRING, 0, 0, &X);
  sqlite3AddDefaultValue(pParse,p);
}

// In addition to the type name, we also care about the primary key and
// UNIQUE constraints.
//