**
*************************************************************************
** 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 1.110 2004/02/14 23:59:57 drh Exp $
*/
%token_prefix TK_
%token_type {Token}
%default_type {Token}
%extra_argument {Parse *pParse}
%syntax_error {
  if( pParse->zErrMsg==0 ){
................................................................................
//
%fallback ID
  ABORT AFTER ASC ATTACH BEFORE BEGIN CASCADE CLUSTER CONFLICT
  COPY DATABASE DEFERRED DELIMITERS DESC DETACH EACH END EXPLAIN FAIL FOR
  GLOB IGNORE IMMEDIATE INITIALLY INSTEAD LIKE MATCH KEY
  OF OFFSET PRAGMA RAISE REPLACE RESTRICT ROW STATEMENT
  TEMP TRIGGER VACUUM VIEW.

















// And "ids" is an identifer-or-string.
//
%type ids {Token}
ids(A) ::= ID(X).        {A = X;}
ids(A) ::= STRING(X).    {A = X;}

................................................................................
inscollist_opt(A) ::= .                       {A = 0;}
inscollist_opt(A) ::= LP inscollist(X) RP.    {A = X;}
inscollist(A) ::= inscollist(X) COMMA nm(Y).  {A = sqliteIdListAppend(X,&Y);}
inscollist(A) ::= nm(Y).                      {A = sqliteIdListAppend(0,&Y);}

/////////////////////////// Expression Processing /////////////////////////////
//
%left OR.
%left AND.
%right NOT.
%left EQ NE ISNULL NOTNULL IS LIKE GLOB BETWEEN IN.
%left GT GE LT LE.
%left BITAND BITOR LSHIFT RSHIFT.
%left PLUS MINUS.
%left STAR SLASH REM.
%left CONCAT.
%right UMINUS UPLUS BITNOT.

%type expr {Expr*}
%destructor expr {sqliteExprDelete($$);}

expr(A) ::= LP(B) expr(X) RP(E). {A = X; sqliteExprSpan(A,&B,&E); }
expr(A) ::= NULL(X).             {A = sqliteExpr(TK_NULL, 0, 0, &X);}
expr(A) ::= ID(X).               {A = sqliteExpr(TK_ID, 0, 0, &X);}

**
*************************************************************************
** 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 1.111 2004/02/22 16:27:00 drh Exp $
*/
%token_prefix TK_
%token_type {Token}
%default_type {Token}
%extra_argument {Parse *pParse}
%syntax_error {
  if( pParse->zErrMsg==0 ){
................................................................................
//
%fallback ID
  ABORT AFTER ASC ATTACH BEFORE BEGIN CASCADE CLUSTER CONFLICT
  COPY DATABASE DEFERRED DELIMITERS DESC DETACH EACH END EXPLAIN FAIL FOR
  GLOB IGNORE IMMEDIATE INITIALLY INSTEAD LIKE MATCH KEY
  OF OFFSET PRAGMA RAISE REPLACE RESTRICT ROW STATEMENT
  TEMP TRIGGER VACUUM VIEW.

// Define operator precedence early so that this is the first occurance
// of the operator tokens in the grammer.  Keeping the operators together
// causes them to be assigned integer values that are close together,
// which keeps parser tables smaller.
//
%left OR.
%left AND.
%right NOT.
%left EQ NE ISNULL NOTNULL IS LIKE GLOB BETWEEN IN.
%left GT GE LT LE.
%left BITAND BITOR LSHIFT RSHIFT.
%left PLUS MINUS.
%left STAR SLASH REM.
%left CONCAT.
%right UMINUS UPLUS BITNOT.

// And "ids" is an identifer-or-string.
//
%type ids {Token}
ids(A) ::= ID(X).        {A = X;}
ids(A) ::= STRING(X).    {A = X;}

................................................................................
inscollist_opt(A) ::= .                       {A = 0;}
inscollist_opt(A) ::= LP inscollist(X) RP.    {A = X;}
inscollist(A) ::= inscollist(X) COMMA nm(Y).  {A = sqliteIdListAppend(X,&Y);}
inscollist(A) ::= nm(Y).                      {A = sqliteIdListAppend(0,&Y);}

/////////////////////////// Expression Processing /////////////////////////////
//











%type expr {Expr*}
%destructor expr {sqliteExprDelete($$);}

expr(A) ::= LP(B) expr(X) RP(E). {A = X; sqliteExprSpan(A,&B,&E); }
expr(A) ::= NULL(X).             {A = sqliteExpr(TK_NULL, 0, 0, &X);}
expr(A) ::= ID(X).               {A = sqliteExpr(TK_ID, 0, 0, &X);}