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Unified Diff: third_party/sqlite/src/parse.y

Issue 3108030: Move bundled copy of sqlite one level deeper to better separate it... (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 10 years, 4 months ago
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Index: third_party/sqlite/src/parse.y
===================================================================
--- third_party/sqlite/src/parse.y (revision 56608)
+++ third_party/sqlite/src/parse.y (working copy)
@@ -1,1330 +0,0 @@
-/*
-** 2001 September 15
-**
-** The author disclaims copyright to this source code. In place of
-** a legal notice, here is a blessing:
-**
-** May you do good and not evil.
-** May you find forgiveness for yourself and forgive others.
-** May you share freely, never taking more than you give.
-**
-*************************************************************************
-** 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 1.286 2009/08/10 03:57:58 shane 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.
-//
-%token_type {Token}
-%default_type {Token}
-
-// The generated parser function takes a 4th argument as follows:
-%extra_argument {Parse *pParse}
-
-// This code runs whenever there is a syntax error
-//
-%syntax_error {
- UNUSED_PARAMETER(yymajor); /* Silence some compiler warnings */
- assert( TOKEN.z[0] ); /* The tokenizer always gives us a token */
- sqlite3ErrorMsg(pParse, "near \"%T\": syntax error", &TOKEN);
- pParse->parseError = 1;
-}
-%stack_overflow {
- UNUSED_PARAMETER(yypMinor); /* Silence some compiler warnings */
- sqlite3ErrorMsg(pParse, "parser stack overflow");
- pParse->parseError = 1;
-}
-
-// The name of the generated procedure that implements the parser
-// is as follows:
-%name sqlite3Parser
-
-// The following text is included near the beginning of the C source
-// code file that implements the parser.
-//
-%include {
-#include "sqliteInt.h"
-
-/*
-** Disable all error recovery processing in the parser push-down
-** automaton.
-*/
-#define YYNOERRORRECOVERY 1
-
-/*
-** Make yytestcase() the same as testcase()
-*/
-#define yytestcase(X) testcase(X)
-
-/*
-** An instance of this structure holds information about the
-** LIMIT clause of a SELECT statement.
-*/
-struct LimitVal {
- Expr *pLimit; /* The LIMIT expression. NULL if there is no limit */
- Expr *pOffset; /* The OFFSET expression. NULL if there is none */
-};
-
-/*
-** An instance of this structure is used to store the LIKE,
-** GLOB, NOT LIKE, and NOT GLOB operators.
-*/
-struct LikeOp {
- Token eOperator; /* "like" or "glob" or "regexp" */
- int not; /* True if the NOT keyword is present */
-};
-
-/*
-** An instance of the following structure describes the event of a
-** TRIGGER. "a" is the event type, one of TK_UPDATE, TK_INSERT,
-** TK_DELETE, or TK_INSTEAD. If the event is of the form
-**
-** UPDATE ON (a,b,c)
-**
-** Then the "b" IdList records the list "a,b,c".
-*/
-struct TrigEvent { int a; IdList * b; };
-
-/*
-** An instance of this structure holds the ATTACH key and the key type.
-*/
-struct AttachKey { int type; Token key; };
-
-} // end %include
-
-// Input is a single SQL command
-input ::= cmdlist.
-cmdlist ::= cmdlist ecmd.
-cmdlist ::= ecmd.
-ecmd ::= SEMI.
-ecmd ::= explain cmdx SEMI.
-explain ::= . { sqlite3BeginParse(pParse, 0); }
-%ifndef SQLITE_OMIT_EXPLAIN
-explain ::= EXPLAIN. { sqlite3BeginParse(pParse, 1); }
-explain ::= EXPLAIN QUERY PLAN. { sqlite3BeginParse(pParse, 2); }
-%endif SQLITE_OMIT_EXPLAIN
-cmdx ::= cmd. { sqlite3FinishCoding(pParse); }
-
-///////////////////// Begin and end transactions. ////////////////////////////
-//
-
-cmd ::= BEGIN transtype(Y) trans_opt. {sqlite3BeginTransaction(pParse, Y);}
-trans_opt ::= .
-trans_opt ::= TRANSACTION.
-trans_opt ::= TRANSACTION nm.
-%type transtype {int}
-transtype(A) ::= . {A = TK_DEFERRED;}
-transtype(A) ::= DEFERRED(X). {A = @X;}
-transtype(A) ::= IMMEDIATE(X). {A = @X;}
-transtype(A) ::= EXCLUSIVE(X). {A = @X;}
-cmd ::= COMMIT trans_opt. {sqlite3CommitTransaction(pParse);}
-cmd ::= END trans_opt. {sqlite3CommitTransaction(pParse);}
-cmd ::= ROLLBACK trans_opt. {sqlite3RollbackTransaction(pParse);}
-
-savepoint_opt ::= SAVEPOINT.
-savepoint_opt ::= .
-cmd ::= SAVEPOINT nm(X). {
- sqlite3Savepoint(pParse, SAVEPOINT_BEGIN, &X);
-}
-cmd ::= RELEASE savepoint_opt nm(X). {
- sqlite3Savepoint(pParse, SAVEPOINT_RELEASE, &X);
-}
-cmd ::= ROLLBACK trans_opt TO savepoint_opt nm(X). {
- sqlite3Savepoint(pParse, SAVEPOINT_ROLLBACK, &X);
-}
-
-///////////////////// The CREATE TABLE statement ////////////////////////////
-//
-cmd ::= create_table create_table_args.
-create_table ::= createkw temp(T) TABLE ifnotexists(E) nm(Y) dbnm(Z). {
- sqlite3StartTable(pParse,&Y,&Z,T,0,0,E);
-}
-createkw(A) ::= CREATE(X). {
- pParse->db->lookaside.bEnabled = 0;
- A = X;
-}
-%type ifnotexists {int}
-ifnotexists(A) ::= . {A = 0;}
-ifnotexists(A) ::= IF NOT EXISTS. {A = 1;}
-%type temp {int}
-%ifndef SQLITE_OMIT_TEMPDB
-temp(A) ::= TEMP. {A = 1;}
-%endif SQLITE_OMIT_TEMPDB
-temp(A) ::= . {A = 0;}
-create_table_args ::= LP columnlist conslist_opt(X) RP(Y). {
- sqlite3EndTable(pParse,&X,&Y,0);
-}
-create_table_args ::= AS select(S). {
- sqlite3EndTable(pParse,0,0,S);
- sqlite3SelectDelete(pParse->db, S);
-}
-columnlist ::= columnlist COMMA column.
-columnlist ::= column.
-
-// A "column" is a complete description of a single column in a
-// CREATE TABLE statement. This includes the column name, its
-// datatype, and other keywords such as PRIMARY KEY, UNIQUE, REFERENCES,
-// NOT NULL and so forth.
-//
-column(A) ::= columnid(X) type carglist. {
- A.z = X.z;
- A.n = (int)(pParse->sLastToken.z-X.z) + pParse->sLastToken.n;
-}
-columnid(A) ::= nm(X). {
- sqlite3AddColumn(pParse,&X);
- A = X;
-}
-
-
-// An IDENTIFIER can be a generic identifier, or one of several
-// keywords. Any non-standard keyword can also be an identifier.
-//
-%type id {Token}
-id(A) ::= ID(X). {A = X;}
-id(A) ::= INDEXED(X). {A = X;}
-
-// The following directive causes tokens ABORT, AFTER, ASC, etc. to
-// fallback to ID if they will not parse as their original value.
-// This obviates the need for the "id" nonterminal.
-//
-%fallback ID
- ABORT AFTER ANALYZE ASC ATTACH BEFORE BEGIN BY CASCADE CAST COLUMNKW CONFLICT
- DATABASE DEFERRED DESC DETACH EACH END EXCLUSIVE EXPLAIN FAIL FOR
- IGNORE IMMEDIATE INITIALLY INSTEAD LIKE_KW MATCH PLAN
- QUERY KEY OF OFFSET PRAGMA RAISE RELEASE REPLACE RESTRICT ROW ROLLBACK
- SAVEPOINT TEMP TRIGGER VACUUM VIEW VIRTUAL
-%ifdef SQLITE_OMIT_COMPOUND_SELECT
- EXCEPT INTERSECT UNION
-%endif SQLITE_OMIT_COMPOUND_SELECT
- REINDEX RENAME CTIME_KW IF
- .
-%wildcard ANY.
-
-// 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.
-//
-// The token values assigned to these symbols is determined by the order
-// in which lemon first sees them. It must be the case that ISNULL/NOTNULL,
-// NE/EQ, GT/LE, and GE/LT are separated by only a single value. See
-// the sqlite3ExprIfFalse() routine for additional information on this
-// constraint.
-//
-%left OR.
-%left AND.
-%right NOT.
-%left IS MATCH LIKE_KW BETWEEN IN ISNULL NOTNULL NE EQ.
-%left GT LE LT GE.
-%right ESCAPE.
-%left BITAND BITOR LSHIFT RSHIFT.
-%left PLUS MINUS.
-%left STAR SLASH REM.
-%left CONCAT.
-%left COLLATE.
-%right UMINUS UPLUS BITNOT.
-
-// And "ids" is an identifer-or-string.
-//
-%type ids {Token}
-ids(A) ::= ID|STRING(X). {A = X;}
-
-// The name of a column or table can be any of the following:
-//
-%type nm {Token}
-nm(A) ::= id(X). {A = X;}
-nm(A) ::= STRING(X). {A = X;}
-nm(A) ::= JOIN_KW(X). {A = X;}
-
-// A typetoken is really one or more tokens that form a type name such
-// as can be found after the column name in a CREATE TABLE statement.
-// Multiple tokens are concatenated to form the value of the typetoken.
-//
-%type typetoken {Token}
-type ::= .
-type ::= typetoken(X). {sqlite3AddColumnType(pParse,&X);}
-typetoken(A) ::= typename(X). {A = X;}
-typetoken(A) ::= typename(X) LP signed RP(Y). {
- A.z = X.z;
- A.n = (int)(&Y.z[Y.n] - X.z);
-}
-typetoken(A) ::= typename(X) LP signed COMMA signed RP(Y). {
- A.z = X.z;
- A.n = (int)(&Y.z[Y.n] - X.z);
-}
-%type typename {Token}
-typename(A) ::= ids(X). {A = X;}
-typename(A) ::= typename(X) ids(Y). {A.z=X.z; A.n=Y.n+(int)(Y.z-X.z);}
-signed ::= plus_num.
-signed ::= minus_num.
-
-// "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(A) term(X). {
- ExprSpan v;
- v.pExpr = sqlite3PExpr(pParse, TK_UMINUS, X.pExpr, 0, 0);
- v.zStart = A.z;
- v.zEnd = X.zEnd;
- sqlite3AddDefaultValue(pParse,&v);
-}
-ccons ::= DEFAULT id(X). {
- ExprSpan v;
- spanExpr(&v, pParse, TK_STRING, &X);
- sqlite3AddDefaultValue(pParse,&v);
-}
-
-// In addition to the type name, we also care about the primary key and
-// UNIQUE constraints.
-//
-ccons ::= NULL onconf.
-ccons ::= NOT NULL onconf(R). {sqlite3AddNotNull(pParse, R);}
-ccons ::= PRIMARY KEY sortorder(Z) onconf(R) autoinc(I).
- {sqlite3AddPrimaryKey(pParse,0,R,I,Z);}
-ccons ::= UNIQUE onconf(R). {sqlite3CreateIndex(pParse,0,0,0,0,R,0,0,0,0);}
-ccons ::= CHECK LP expr(X) RP. {sqlite3AddCheckConstraint(pParse,X.pExpr);}
-ccons ::= REFERENCES nm(T) idxlist_opt(TA) refargs(R).
- {sqlite3CreateForeignKey(pParse,0,&T,TA,R);}
-ccons ::= defer_subclause(D). {sqlite3DeferForeignKey(pParse,D);}
-ccons ::= COLLATE ids(C). {sqlite3AddCollateType(pParse, &C);}
-
-// The optional AUTOINCREMENT keyword
-%type autoinc {int}
-autoinc(X) ::= . {X = 0;}
-autoinc(X) ::= AUTOINCR. {X = 1;}
-
-// The next group of rules parses the arguments to a REFERENCES clause
-// that determine if the referential integrity checking is deferred or
-// or immediate and which determine what action to take if a ref-integ
-// check fails.
-//
-%type refargs {int}
-refargs(A) ::= . { A = OE_Restrict * 0x010101; }
-refargs(A) ::= refargs(X) refarg(Y). { A = (X & ~Y.mask) | Y.value; }
-%type refarg {struct {int value; int mask;}}
-refarg(A) ::= MATCH nm. { A.value = 0; A.mask = 0x000000; }
-refarg(A) ::= ON DELETE refact(X). { A.value = X; A.mask = 0x0000ff; }
-refarg(A) ::= ON UPDATE refact(X). { A.value = X<<8; A.mask = 0x00ff00; }
-refarg(A) ::= ON INSERT refact(X). { A.value = X<<16; A.mask = 0xff0000; }
-%type refact {int}
-refact(A) ::= SET NULL. { A = OE_SetNull; }
-refact(A) ::= SET DEFAULT. { A = OE_SetDflt; }
-refact(A) ::= CASCADE. { A = OE_Cascade; }
-refact(A) ::= RESTRICT. { A = OE_Restrict; }
-%type defer_subclause {int}
-defer_subclause(A) ::= NOT DEFERRABLE init_deferred_pred_opt(X). {A = X;}
-defer_subclause(A) ::= DEFERRABLE init_deferred_pred_opt(X). {A = X;}
-%type init_deferred_pred_opt {int}
-init_deferred_pred_opt(A) ::= . {A = 0;}
-init_deferred_pred_opt(A) ::= INITIALLY DEFERRED. {A = 1;}
-init_deferred_pred_opt(A) ::= INITIALLY IMMEDIATE. {A = 0;}
-
-// For the time being, the only constraint we care about is the primary
-// key and UNIQUE. Both create indices.
-//
-conslist_opt(A) ::= . {A.n = 0; A.z = 0;}
-conslist_opt(A) ::= COMMA(X) conslist. {A = X;}
-conslist ::= conslist COMMA tcons.
-conslist ::= conslist tcons.
-conslist ::= tcons.
-tcons ::= CONSTRAINT nm.
-tcons ::= PRIMARY KEY LP idxlist(X) autoinc(I) RP onconf(R).
- {sqlite3AddPrimaryKey(pParse,X,R,I,0);}
-tcons ::= UNIQUE LP idxlist(X) RP onconf(R).
- {sqlite3CreateIndex(pParse,0,0,0,X,R,0,0,0,0);}
-tcons ::= CHECK LP expr(E) RP onconf.
- {sqlite3AddCheckConstraint(pParse,E.pExpr);}
-tcons ::= FOREIGN KEY LP idxlist(FA) RP
- REFERENCES nm(T) idxlist_opt(TA) refargs(R) defer_subclause_opt(D). {
- sqlite3CreateForeignKey(pParse, FA, &T, TA, R);
- sqlite3DeferForeignKey(pParse, D);
-}
-%type defer_subclause_opt {int}
-defer_subclause_opt(A) ::= . {A = 0;}
-defer_subclause_opt(A) ::= defer_subclause(X). {A = X;}
-
-// The following is a non-standard extension that allows us to declare the
-// default behavior when there is a constraint conflict.
-//
-%type onconf {int}
-%type orconf {u8}
-%type resolvetype {int}
-onconf(A) ::= . {A = OE_Default;}
-onconf(A) ::= ON CONFLICT resolvetype(X). {A = X;}
-orconf(A) ::= . {A = OE_Default;}
-orconf(A) ::= OR resolvetype(X). {A = (u8)X;}
-resolvetype(A) ::= raisetype(X). {A = X;}
-resolvetype(A) ::= IGNORE. {A = OE_Ignore;}
-resolvetype(A) ::= REPLACE. {A = OE_Replace;}
-
-////////////////////////// The DROP TABLE /////////////////////////////////////
-//
-cmd ::= DROP TABLE ifexists(E) fullname(X). {
- sqlite3DropTable(pParse, X, 0, E);
-}
-%type ifexists {int}
-ifexists(A) ::= IF EXISTS. {A = 1;}
-ifexists(A) ::= . {A = 0;}
-
-///////////////////// The CREATE VIEW statement /////////////////////////////
-//
-%ifndef SQLITE_OMIT_VIEW
-cmd ::= createkw(X) temp(T) VIEW ifnotexists(E) nm(Y) dbnm(Z) AS select(S). {
- sqlite3CreateView(pParse, &X, &Y, &Z, S, T, E);
-}
-cmd ::= DROP VIEW ifexists(E) fullname(X). {
- sqlite3DropTable(pParse, X, 1, E);
-}
-%endif SQLITE_OMIT_VIEW
-
-//////////////////////// The SELECT statement /////////////////////////////////
-//
-cmd ::= select(X). {
- SelectDest dest = {SRT_Output, 0, 0, 0, 0};
- sqlite3Select(pParse, X, &dest);
- sqlite3SelectDelete(pParse->db, X);
-}
-
-%type select {Select*}
-%destructor select {sqlite3SelectDelete(pParse->db, $$);}
-%type oneselect {Select*}
-%destructor oneselect {sqlite3SelectDelete(pParse->db, $$);}
-
-select(A) ::= oneselect(X). {A = X;}
-%ifndef SQLITE_OMIT_COMPOUND_SELECT
-select(A) ::= select(X) multiselect_op(Y) oneselect(Z). {
- if( Z ){
- Z->op = (u8)Y;
- Z->pPrior = X;
- }else{
- sqlite3SelectDelete(pParse->db, X);
- }
- A = Z;
-}
-%type multiselect_op {int}
-multiselect_op(A) ::= UNION(OP). {A = @OP;}
-multiselect_op(A) ::= UNION ALL. {A = TK_ALL;}
-multiselect_op(A) ::= EXCEPT|INTERSECT(OP). {A = @OP;}
-%endif SQLITE_OMIT_COMPOUND_SELECT
-oneselect(A) ::= SELECT distinct(D) selcollist(W) from(X) where_opt(Y)
- groupby_opt(P) having_opt(Q) orderby_opt(Z) limit_opt(L). {
- A = sqlite3SelectNew(pParse,W,X,Y,P,Q,Z,D,L.pLimit,L.pOffset);
-}
-
-// The "distinct" nonterminal is true (1) if the DISTINCT keyword is
-// present and false (0) if it is not.
-//
-%type distinct {int}
-distinct(A) ::= DISTINCT. {A = 1;}
-distinct(A) ::= ALL. {A = 0;}
-distinct(A) ::= . {A = 0;}
-
-// selcollist is a list of expressions that are to become the return
-// values of the SELECT statement. The "*" in statements like
-// "SELECT * FROM ..." is encoded as a special expression with an
-// opcode of TK_ALL.
-//
-%type selcollist {ExprList*}
-%destructor selcollist {sqlite3ExprListDelete(pParse->db, $$);}
-%type sclp {ExprList*}
-%destructor sclp {sqlite3ExprListDelete(pParse->db, $$);}
-sclp(A) ::= selcollist(X) COMMA. {A = X;}
-sclp(A) ::= . {A = 0;}
-selcollist(A) ::= sclp(P) expr(X) as(Y). {
- A = sqlite3ExprListAppend(pParse, P, X.pExpr);
- if( Y.n>0 ) sqlite3ExprListSetName(pParse, A, &Y, 1);
- sqlite3ExprListSetSpan(pParse,A,&X);
-}
-selcollist(A) ::= sclp(P) STAR. {
- Expr *p = sqlite3Expr(pParse->db, TK_ALL, 0);
- A = sqlite3ExprListAppend(pParse, P, p);
-}
-selcollist(A) ::= sclp(P) nm(X) DOT STAR(Y). {
- Expr *pRight = sqlite3PExpr(pParse, TK_ALL, 0, 0, &Y);
- Expr *pLeft = sqlite3PExpr(pParse, TK_ID, 0, 0, &X);
- Expr *pDot = sqlite3PExpr(pParse, TK_DOT, pLeft, pRight, 0);
- A = sqlite3ExprListAppend(pParse,P, pDot);
-}
-
-// An option "AS <id>" phrase that can follow one of the expressions that
-// define the result set, or one of the tables in the FROM clause.
-//
-%type as {Token}
-as(X) ::= AS nm(Y). {X = Y;}
-as(X) ::= ids(Y). {X = Y;}
-as(X) ::= . {X.n = 0;}
-
-
-%type seltablist {SrcList*}
-%destructor seltablist {sqlite3SrcListDelete(pParse->db, $$);}
-%type stl_prefix {SrcList*}
-%destructor stl_prefix {sqlite3SrcListDelete(pParse->db, $$);}
-%type from {SrcList*}
-%destructor from {sqlite3SrcListDelete(pParse->db, $$);}
-
-// A complete FROM clause.
-//
-from(A) ::= . {A = sqlite3DbMallocZero(pParse->db, sizeof(*A));}
-from(A) ::= FROM seltablist(X). {
- A = X;
- sqlite3SrcListShiftJoinType(A);
-}
-
-// "seltablist" is a "Select Table List" - the content of the FROM clause
-// in a SELECT statement. "stl_prefix" is a prefix of this list.
-//
-stl_prefix(A) ::= seltablist(X) joinop(Y). {
- A = X;
- if( ALWAYS(A && A->nSrc>0) ) A->a[A->nSrc-1].jointype = (u8)Y;
-}
-stl_prefix(A) ::= . {A = 0;}
-seltablist(A) ::= stl_prefix(X) nm(Y) dbnm(D) as(Z) indexed_opt(I) on_opt(N) using_opt(U). {
- A = sqlite3SrcListAppendFromTerm(pParse,X,&Y,&D,&Z,0,N,U);
- sqlite3SrcListIndexedBy(pParse, A, &I);
-}
-%ifndef SQLITE_OMIT_SUBQUERY
- seltablist(A) ::= stl_prefix(X) LP select(S) RP
- as(Z) on_opt(N) using_opt(U). {
- A = sqlite3SrcListAppendFromTerm(pParse,X,0,0,&Z,S,N,U);
- }
- seltablist(A) ::= stl_prefix(X) LP seltablist(F) RP
- as(Z) on_opt(N) using_opt(U). {
- if( X==0 && Z.n==0 && N==0 && U==0 ){
- A = F;
- }else{
- Select *pSubquery;
- sqlite3SrcListShiftJoinType(F);
- pSubquery = sqlite3SelectNew(pParse,0,F,0,0,0,0,0,0,0);
- A = sqlite3SrcListAppendFromTerm(pParse,X,0,0,&Z,pSubquery,N,U);
- }
- }
-
- // A seltablist_paren nonterminal represents anything in a FROM that
- // is contained inside parentheses. This can be either a subquery or
- // a grouping of table and subqueries.
- //
-// %type seltablist_paren {Select*}
-// %destructor seltablist_paren {sqlite3SelectDelete(pParse->db, $$);}
-// seltablist_paren(A) ::= select(S). {A = S;}
-// seltablist_paren(A) ::= seltablist(F). {
-// sqlite3SrcListShiftJoinType(F);
-// A = sqlite3SelectNew(pParse,0,F,0,0,0,0,0,0,0);
-// }
-%endif SQLITE_OMIT_SUBQUERY
-
-%type dbnm {Token}
-dbnm(A) ::= . {A.z=0; A.n=0;}
-dbnm(A) ::= DOT nm(X). {A = X;}
-
-%type fullname {SrcList*}
-%destructor fullname {sqlite3SrcListDelete(pParse->db, $$);}
-fullname(A) ::= nm(X) dbnm(Y). {A = sqlite3SrcListAppend(pParse->db,0,&X,&Y);}
-
-%type joinop {int}
-%type joinop2 {int}
-joinop(X) ::= COMMA|JOIN. { X = JT_INNER; }
-joinop(X) ::= JOIN_KW(A) JOIN. { X = sqlite3JoinType(pParse,&A,0,0); }
-joinop(X) ::= JOIN_KW(A) nm(B) JOIN. { X = sqlite3JoinType(pParse,&A,&B,0); }
-joinop(X) ::= JOIN_KW(A) nm(B) nm(C) JOIN.
- { X = sqlite3JoinType(pParse,&A,&B,&C); }
-
-%type on_opt {Expr*}
-%destructor on_opt {sqlite3ExprDelete(pParse->db, $$);}
-on_opt(N) ::= ON expr(E). {N = E.pExpr;}
-on_opt(N) ::= . {N = 0;}
-
-// Note that this block abuses the Token type just a little. If there is
-// no "INDEXED BY" clause, the returned token is empty (z==0 && n==0). If
-// there is an INDEXED BY clause, then the token is populated as per normal,
-// with z pointing to the token data and n containing the number of bytes
-// in the token.
-//
-// If there is a "NOT INDEXED" clause, then (z==0 && n==1), which is
-// normally illegal. The sqlite3SrcListIndexedBy() function
-// recognizes and interprets this as a special case.
-//
-%type indexed_opt {Token}
-indexed_opt(A) ::= . {A.z=0; A.n=0;}
-indexed_opt(A) ::= INDEXED BY nm(X). {A = X;}
-indexed_opt(A) ::= NOT INDEXED. {A.z=0; A.n=1;}
-
-%type using_opt {IdList*}
-%destructor using_opt {sqlite3IdListDelete(pParse->db, $$);}
-using_opt(U) ::= USING LP inscollist(L) RP. {U = L;}
-using_opt(U) ::= . {U = 0;}
-
-
-%type orderby_opt {ExprList*}
-%destructor orderby_opt {sqlite3ExprListDelete(pParse->db, $$);}
-%type sortlist {ExprList*}
-%destructor sortlist {sqlite3ExprListDelete(pParse->db, $$);}
-%type sortitem {Expr*}
-%destructor sortitem {sqlite3ExprDelete(pParse->db, $$);}
-
-orderby_opt(A) ::= . {A = 0;}
-orderby_opt(A) ::= ORDER BY sortlist(X). {A = X;}
-sortlist(A) ::= sortlist(X) COMMA sortitem(Y) sortorder(Z). {
- A = sqlite3ExprListAppend(pParse,X,Y);
- if( A ) A->a[A->nExpr-1].sortOrder = (u8)Z;
-}
-sortlist(A) ::= sortitem(Y) sortorder(Z). {
- A = sqlite3ExprListAppend(pParse,0,Y);
- if( A && ALWAYS(A->a) ) A->a[0].sortOrder = (u8)Z;
-}
-sortitem(A) ::= expr(X). {A = X.pExpr;}
-
-%type sortorder {int}
-
-sortorder(A) ::= ASC. {A = SQLITE_SO_ASC;}
-sortorder(A) ::= DESC. {A = SQLITE_SO_DESC;}
-sortorder(A) ::= . {A = SQLITE_SO_ASC;}
-
-%type groupby_opt {ExprList*}
-%destructor groupby_opt {sqlite3ExprListDelete(pParse->db, $$);}
-groupby_opt(A) ::= . {A = 0;}
-groupby_opt(A) ::= GROUP BY nexprlist(X). {A = X;}
-
-%type having_opt {Expr*}
-%destructor having_opt {sqlite3ExprDelete(pParse->db, $$);}
-having_opt(A) ::= . {A = 0;}
-having_opt(A) ::= HAVING expr(X). {A = X.pExpr;}
-
-%type limit_opt {struct LimitVal}
-
-// The destructor for limit_opt will never fire in the current grammar.
-// The limit_opt non-terminal only occurs at the end of a single production
-// rule for SELECT statements. As soon as the rule that create the
-// limit_opt non-terminal reduces, the SELECT statement rule will also
-// reduce. So there is never a limit_opt non-terminal on the stack
-// except as a transient. So there is never anything to destroy.
-//
-//%destructor limit_opt {
-// sqlite3ExprDelete(pParse->db, $$.pLimit);
-// sqlite3ExprDelete(pParse->db, $$.pOffset);
-//}
-limit_opt(A) ::= . {A.pLimit = 0; A.pOffset = 0;}
-limit_opt(A) ::= LIMIT expr(X). {A.pLimit = X.pExpr; A.pOffset = 0;}
-limit_opt(A) ::= LIMIT expr(X) OFFSET expr(Y).
- {A.pLimit = X.pExpr; A.pOffset = Y.pExpr;}
-limit_opt(A) ::= LIMIT expr(X) COMMA expr(Y).
- {A.pOffset = X.pExpr; A.pLimit = Y.pExpr;}
-
-/////////////////////////// The DELETE statement /////////////////////////////
-//
-%ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
-cmd ::= DELETE FROM fullname(X) indexed_opt(I) where_opt(W)
- orderby_opt(O) limit_opt(L). {
- sqlite3SrcListIndexedBy(pParse, X, &I);
- W = sqlite3LimitWhere(pParse, X, W, O, L.pLimit, L.pOffset, "DELETE");
- sqlite3DeleteFrom(pParse,X,W);
-}
-%endif
-%ifndef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
-cmd ::= DELETE FROM fullname(X) indexed_opt(I) where_opt(W). {
- sqlite3SrcListIndexedBy(pParse, X, &I);
- sqlite3DeleteFrom(pParse,X,W);
-}
-%endif
-
-%type where_opt {Expr*}
-%destructor where_opt {sqlite3ExprDelete(pParse->db, $$);}
-
-where_opt(A) ::= . {A = 0;}
-where_opt(A) ::= WHERE expr(X). {A = X.pExpr;}
-
-////////////////////////// The UPDATE command ////////////////////////////////
-//
-%ifdef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
-cmd ::= UPDATE orconf(R) fullname(X) indexed_opt(I) SET setlist(Y) where_opt(W) orderby_opt(O) limit_opt(L). {
- sqlite3SrcListIndexedBy(pParse, X, &I);
- sqlite3ExprListCheckLength(pParse,Y,"set list");
- W = sqlite3LimitWhere(pParse, X, W, O, L.pLimit, L.pOffset, "UPDATE");
- sqlite3Update(pParse,X,Y,W,R);
-}
-%endif
-%ifndef SQLITE_ENABLE_UPDATE_DELETE_LIMIT
-cmd ::= UPDATE orconf(R) fullname(X) indexed_opt(I) SET setlist(Y) where_opt(W). {
- sqlite3SrcListIndexedBy(pParse, X, &I);
- sqlite3ExprListCheckLength(pParse,Y,"set list");
- sqlite3Update(pParse,X,Y,W,R);
-}
-%endif
-
-%type setlist {ExprList*}
-%destructor setlist {sqlite3ExprListDelete(pParse->db, $$);}
-
-setlist(A) ::= setlist(Z) COMMA nm(X) EQ expr(Y). {
- A = sqlite3ExprListAppend(pParse, Z, Y.pExpr);
- sqlite3ExprListSetName(pParse, A, &X, 1);
-}
-setlist(A) ::= nm(X) EQ expr(Y). {
- A = sqlite3ExprListAppend(pParse, 0, Y.pExpr);
- sqlite3ExprListSetName(pParse, A, &X, 1);
-}
-
-////////////////////////// The INSERT command /////////////////////////////////
-//
-cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F)
- VALUES LP itemlist(Y) RP.
- {sqlite3Insert(pParse, X, Y, 0, F, R);}
-cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F) select(S).
- {sqlite3Insert(pParse, X, 0, S, F, R);}
-cmd ::= insert_cmd(R) INTO fullname(X) inscollist_opt(F) DEFAULT VALUES.
- {sqlite3Insert(pParse, X, 0, 0, F, R);}
-
-%type insert_cmd {u8}
-insert_cmd(A) ::= INSERT orconf(R). {A = R;}
-insert_cmd(A) ::= REPLACE. {A = OE_Replace;}
-
-
-%type itemlist {ExprList*}
-%destructor itemlist {sqlite3ExprListDelete(pParse->db, $$);}
-
-itemlist(A) ::= itemlist(X) COMMA expr(Y).
- {A = sqlite3ExprListAppend(pParse,X,Y.pExpr);}
-itemlist(A) ::= expr(X).
- {A = sqlite3ExprListAppend(pParse,0,X.pExpr);}
-
-%type inscollist_opt {IdList*}
-%destructor inscollist_opt {sqlite3IdListDelete(pParse->db, $$);}
-%type inscollist {IdList*}
-%destructor inscollist {sqlite3IdListDelete(pParse->db, $$);}
-
-inscollist_opt(A) ::= . {A = 0;}
-inscollist_opt(A) ::= LP inscollist(X) RP. {A = X;}
-inscollist(A) ::= inscollist(X) COMMA nm(Y).
- {A = sqlite3IdListAppend(pParse->db,X,&Y);}
-inscollist(A) ::= nm(Y).
- {A = sqlite3IdListAppend(pParse->db,0,&Y);}
-
-/////////////////////////// Expression Processing /////////////////////////////
-//
-
-%type expr {ExprSpan}
-%destructor expr {sqlite3ExprDelete(pParse->db, $$.pExpr);}
-%type term {ExprSpan}
-%destructor term {sqlite3ExprDelete(pParse->db, $$.pExpr);}
-
-%include {
- /* This is a utility routine used to set the ExprSpan.zStart and
- ** ExprSpan.zEnd values of pOut so that the span covers the complete
- ** range of text beginning with pStart and going to the end of pEnd.
- */
- static void spanSet(ExprSpan *pOut, Token *pStart, Token *pEnd){
- pOut->zStart = pStart->z;
- pOut->zEnd = &pEnd->z[pEnd->n];
- }
-
- /* Construct a new Expr object from a single identifier. Use the
- ** new Expr to populate pOut. Set the span of pOut to be the identifier
- ** that created the expression.
- */
- static void spanExpr(ExprSpan *pOut, Parse *pParse, int op, Token *pValue){
- pOut->pExpr = sqlite3PExpr(pParse, op, 0, 0, pValue);
- pOut->zStart = pValue->z;
- pOut->zEnd = &pValue->z[pValue->n];
- }
-}
-
-expr(A) ::= term(X). {A = X;}
-expr(A) ::= LP(B) expr(X) RP(E). {A.pExpr = X.pExpr; spanSet(&A,&B,&E);}
-term(A) ::= NULL(X). {spanExpr(&A, pParse, @X, &X);}
-expr(A) ::= id(X). {spanExpr(&A, pParse, TK_ID, &X);}
-expr(A) ::= JOIN_KW(X). {spanExpr(&A, pParse, TK_ID, &X);}
-expr(A) ::= nm(X) DOT nm(Y). {
- Expr *temp1 = sqlite3PExpr(pParse, TK_ID, 0, 0, &X);
- Expr *temp2 = sqlite3PExpr(pParse, TK_ID, 0, 0, &Y);
- A.pExpr = sqlite3PExpr(pParse, TK_DOT, temp1, temp2, 0);
- spanSet(&A,&X,&Y);
-}
-expr(A) ::= nm(X) DOT nm(Y) DOT nm(Z). {
- Expr *temp1 = sqlite3PExpr(pParse, TK_ID, 0, 0, &X);
- Expr *temp2 = sqlite3PExpr(pParse, TK_ID, 0, 0, &Y);
- Expr *temp3 = sqlite3PExpr(pParse, TK_ID, 0, 0, &Z);
- Expr *temp4 = sqlite3PExpr(pParse, TK_DOT, temp2, temp3, 0);
- A.pExpr = sqlite3PExpr(pParse, TK_DOT, temp1, temp4, 0);
- spanSet(&A,&X,&Z);
-}
-term(A) ::= INTEGER|FLOAT|BLOB(X). {spanExpr(&A, pParse, @X, &X);}
-term(A) ::= STRING(X). {spanExpr(&A, pParse, @X, &X);}
-expr(A) ::= REGISTER(X). {
- /* When doing a nested parse, one can include terms in an expression
- ** that look like this: #1 #2 ... These terms refer to registers
- ** in the virtual machine. #N is the N-th register. */
- if( pParse->nested==0 ){
- sqlite3ErrorMsg(pParse, "near \"%T\": syntax error", &X);
- A.pExpr = 0;
- }else{
- A.pExpr = sqlite3PExpr(pParse, TK_REGISTER, 0, 0, &X);
- if( A.pExpr ) sqlite3GetInt32(&X.z[1], &A.pExpr->iTable);
- }
- spanSet(&A, &X, &X);
-}
-expr(A) ::= VARIABLE(X). {
- spanExpr(&A, pParse, TK_VARIABLE, &X);
- sqlite3ExprAssignVarNumber(pParse, A.pExpr);
- spanSet(&A, &X, &X);
-}
-expr(A) ::= expr(E) COLLATE ids(C). {
- A.pExpr = sqlite3ExprSetColl(pParse, E.pExpr, &C);
- A.zStart = E.zStart;
- A.zEnd = &C.z[C.n];
-}
-%ifndef SQLITE_OMIT_CAST
-expr(A) ::= CAST(X) LP expr(E) AS typetoken(T) RP(Y). {
- A.pExpr = sqlite3PExpr(pParse, TK_CAST, E.pExpr, 0, &T);
- spanSet(&A,&X,&Y);
-}
-%endif SQLITE_OMIT_CAST
-expr(A) ::= ID(X) LP distinct(D) exprlist(Y) RP(E). {
- if( Y && Y->nExpr>pParse->db->aLimit[SQLITE_LIMIT_FUNCTION_ARG] ){
- sqlite3ErrorMsg(pParse, "too many arguments on function %T", &X);
- }
- A.pExpr = sqlite3ExprFunction(pParse, Y, &X);
- spanSet(&A,&X,&E);
- if( D && A.pExpr ){
- A.pExpr->flags |= EP_Distinct;
- }
-}
-expr(A) ::= ID(X) LP STAR RP(E). {
- A.pExpr = sqlite3ExprFunction(pParse, 0, &X);
- spanSet(&A,&X,&E);
-}
-term(A) ::= CTIME_KW(OP). {
- /* The CURRENT_TIME, CURRENT_DATE, and CURRENT_TIMESTAMP values are
- ** treated as functions that return constants */
- A.pExpr = sqlite3ExprFunction(pParse, 0,&OP);
- if( A.pExpr ){
- A.pExpr->op = TK_CONST_FUNC;
- }
- spanSet(&A, &OP, &OP);
-}
-
-%include {
- /* This routine constructs a binary expression node out of two ExprSpan
- ** objects and uses the result to populate a new ExprSpan object.
- */
- static void spanBinaryExpr(
- ExprSpan *pOut, /* Write the result here */
- Parse *pParse, /* The parsing context. Errors accumulate here */
- int op, /* The binary operation */
- ExprSpan *pLeft, /* The left operand */
- ExprSpan *pRight /* The right operand */
- ){
- pOut->pExpr = sqlite3PExpr(pParse, op, pLeft->pExpr, pRight->pExpr, 0);
- pOut->zStart = pLeft->zStart;
- pOut->zEnd = pRight->zEnd;
- }
-}
-
-expr(A) ::= expr(X) AND(OP) expr(Y). {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
-expr(A) ::= expr(X) OR(OP) expr(Y). {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
-expr(A) ::= expr(X) LT|GT|GE|LE(OP) expr(Y).
- {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
-expr(A) ::= expr(X) EQ|NE(OP) expr(Y). {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
-expr(A) ::= expr(X) BITAND|BITOR|LSHIFT|RSHIFT(OP) expr(Y).
- {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
-expr(A) ::= expr(X) PLUS|MINUS(OP) expr(Y).
- {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
-expr(A) ::= expr(X) STAR|SLASH|REM(OP) expr(Y).
- {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
-expr(A) ::= expr(X) CONCAT(OP) expr(Y). {spanBinaryExpr(&A,pParse,@OP,&X,&Y);}
-%type likeop {struct LikeOp}
-likeop(A) ::= LIKE_KW(X). {A.eOperator = X; A.not = 0;}
-likeop(A) ::= NOT LIKE_KW(X). {A.eOperator = X; A.not = 1;}
-likeop(A) ::= MATCH(X). {A.eOperator = X; A.not = 0;}
-likeop(A) ::= NOT MATCH(X). {A.eOperator = X; A.not = 1;}
-%type escape {ExprSpan}
-%destructor escape {sqlite3ExprDelete(pParse->db, $$.pExpr);}
-escape(X) ::= ESCAPE expr(A). [ESCAPE] {X = A;}
-escape(X) ::= . [ESCAPE] {memset(&X,0,sizeof(X));}
-expr(A) ::= expr(X) likeop(OP) expr(Y) escape(E). [LIKE_KW] {
- ExprList *pList;
- pList = sqlite3ExprListAppend(pParse,0, Y.pExpr);
- pList = sqlite3ExprListAppend(pParse,pList, X.pExpr);
- if( E.pExpr ){
- pList = sqlite3ExprListAppend(pParse,pList, E.pExpr);
- }
- A.pExpr = sqlite3ExprFunction(pParse, pList, &OP.eOperator);
- if( OP.not ) A.pExpr = sqlite3PExpr(pParse, TK_NOT, A.pExpr, 0, 0);
- A.zStart = X.zStart;
- A.zEnd = Y.zEnd;
- if( A.pExpr ) A.pExpr->flags |= EP_InfixFunc;
-}
-
-%include {
- /* Construct an expression node for a unary postfix operator
- */
- static void spanUnaryPostfix(
- ExprSpan *pOut, /* Write the new expression node here */
- Parse *pParse, /* Parsing context to record errors */
- int op, /* The operator */
- ExprSpan *pOperand, /* The operand */
- Token *pPostOp /* The operand token for setting the span */
- ){
- pOut->pExpr = sqlite3PExpr(pParse, op, pOperand->pExpr, 0, 0);
- pOut->zStart = pOperand->zStart;
- pOut->zEnd = &pPostOp->z[pPostOp->n];
- }
-}
-
-expr(A) ::= expr(X) ISNULL|NOTNULL(E). {spanUnaryPostfix(&A,pParse,@E,&X,&E);}
-expr(A) ::= expr(X) IS NULL(E). {spanUnaryPostfix(&A,pParse,TK_ISNULL,&X,&E);}
-expr(A) ::= expr(X) NOT NULL(E). {spanUnaryPostfix(&A,pParse,TK_NOTNULL,&X,&E);}
-expr(A) ::= expr(X) IS NOT NULL(E).
- {spanUnaryPostfix(&A,pParse,TK_NOTNULL,&X,&E);}
-
-%include {
- /* Construct an expression node for a unary prefix operator
- */
- static void spanUnaryPrefix(
- ExprSpan *pOut, /* Write the new expression node here */
- Parse *pParse, /* Parsing context to record errors */
- int op, /* The operator */
- ExprSpan *pOperand, /* The operand */
- Token *pPreOp /* The operand token for setting the span */
- ){
- pOut->pExpr = sqlite3PExpr(pParse, op, pOperand->pExpr, 0, 0);
- pOut->zStart = pPreOp->z;
- pOut->zEnd = pOperand->zEnd;
- }
-}
-
-
-
-expr(A) ::= NOT(B) expr(X). {spanUnaryPrefix(&A,pParse,@B,&X,&B);}
-expr(A) ::= BITNOT(B) expr(X). {spanUnaryPrefix(&A,pParse,@B,&X,&B);}
-expr(A) ::= MINUS(B) expr(X). [UMINUS]
- {spanUnaryPrefix(&A,pParse,TK_UMINUS,&X,&B);}
-expr(A) ::= PLUS(B) expr(X). [UPLUS]
- {spanUnaryPrefix(&A,pParse,TK_UPLUS,&X,&B);}
-
-%type between_op {int}
-between_op(A) ::= BETWEEN. {A = 0;}
-between_op(A) ::= NOT BETWEEN. {A = 1;}
-expr(A) ::= expr(W) between_op(N) expr(X) AND expr(Y). [BETWEEN] {
- ExprList *pList = sqlite3ExprListAppend(pParse,0, X.pExpr);
- pList = sqlite3ExprListAppend(pParse,pList, Y.pExpr);
- A.pExpr = sqlite3PExpr(pParse, TK_BETWEEN, W.pExpr, 0, 0);
- if( A.pExpr ){
- A.pExpr->x.pList = pList;
- }else{
- sqlite3ExprListDelete(pParse->db, pList);
- }
- if( N ) A.pExpr = sqlite3PExpr(pParse, TK_NOT, A.pExpr, 0, 0);
- A.zStart = W.zStart;
- A.zEnd = Y.zEnd;
-}
-%ifndef SQLITE_OMIT_SUBQUERY
- %type in_op {int}
- in_op(A) ::= IN. {A = 0;}
- in_op(A) ::= NOT IN. {A = 1;}
- expr(A) ::= expr(X) in_op(N) LP exprlist(Y) RP(E). [IN] {
- A.pExpr = sqlite3PExpr(pParse, TK_IN, X.pExpr, 0, 0);
- if( A.pExpr ){
- A.pExpr->x.pList = Y;
- sqlite3ExprSetHeight(pParse, A.pExpr);
- }else{
- sqlite3ExprListDelete(pParse->db, Y);
- }
- if( N ) A.pExpr = sqlite3PExpr(pParse, TK_NOT, A.pExpr, 0, 0);
- A.zStart = X.zStart;
- A.zEnd = &E.z[E.n];
- }
- expr(A) ::= LP(B) select(X) RP(E). {
- A.pExpr = sqlite3PExpr(pParse, TK_SELECT, 0, 0, 0);
- if( A.pExpr ){
- A.pExpr->x.pSelect = X;
- ExprSetProperty(A.pExpr, EP_xIsSelect);
- sqlite3ExprSetHeight(pParse, A.pExpr);
- }else{
- sqlite3SelectDelete(pParse->db, X);
- }
- A.zStart = B.z;
- A.zEnd = &E.z[E.n];
- }
- expr(A) ::= expr(X) in_op(N) LP select(Y) RP(E). [IN] {
- A.pExpr = sqlite3PExpr(pParse, TK_IN, X.pExpr, 0, 0);
- if( A.pExpr ){
- A.pExpr->x.pSelect = Y;
- ExprSetProperty(A.pExpr, EP_xIsSelect);
- sqlite3ExprSetHeight(pParse, A.pExpr);
- }else{
- sqlite3SelectDelete(pParse->db, Y);
- }
- if( N ) A.pExpr = sqlite3PExpr(pParse, TK_NOT, A.pExpr, 0, 0);
- A.zStart = X.zStart;
- A.zEnd = &E.z[E.n];
- }
- expr(A) ::= expr(X) in_op(N) nm(Y) dbnm(Z). [IN] {
- SrcList *pSrc = sqlite3SrcListAppend(pParse->db, 0,&Y,&Z);
- A.pExpr = sqlite3PExpr(pParse, TK_IN, X.pExpr, 0, 0);
- if( A.pExpr ){
- A.pExpr->x.pSelect = sqlite3SelectNew(pParse, 0,pSrc,0,0,0,0,0,0,0);
- ExprSetProperty(A.pExpr, EP_xIsSelect);
- sqlite3ExprSetHeight(pParse, A.pExpr);
- }else{
- sqlite3SrcListDelete(pParse->db, pSrc);
- }
- if( N ) A.pExpr = sqlite3PExpr(pParse, TK_NOT, A.pExpr, 0, 0);
- A.zStart = X.zStart;
- A.zEnd = Z.z ? &Z.z[Z.n] : &Y.z[Y.n];
- }
- expr(A) ::= EXISTS(B) LP select(Y) RP(E). {
- Expr *p = A.pExpr = sqlite3PExpr(pParse, TK_EXISTS, 0, 0, 0);
- if( p ){
- p->x.pSelect = Y;
- ExprSetProperty(p, EP_xIsSelect);
- sqlite3ExprSetHeight(pParse, p);
- }else{
- sqlite3SelectDelete(pParse->db, Y);
- }
- A.zStart = B.z;
- A.zEnd = &E.z[E.n];
- }
-%endif SQLITE_OMIT_SUBQUERY
-
-/* CASE expressions */
-expr(A) ::= CASE(C) case_operand(X) case_exprlist(Y) case_else(Z) END(E). {
- A.pExpr = sqlite3PExpr(pParse, TK_CASE, X, Z, 0);
- if( A.pExpr ){
- A.pExpr->x.pList = Y;
- sqlite3ExprSetHeight(pParse, A.pExpr);
- }else{
- sqlite3ExprListDelete(pParse->db, Y);
- }
- A.zStart = C.z;
- A.zEnd = &E.z[E.n];
-}
-%type case_exprlist {ExprList*}
-%destructor case_exprlist {sqlite3ExprListDelete(pParse->db, $$);}
-case_exprlist(A) ::= case_exprlist(X) WHEN expr(Y) THEN expr(Z). {
- A = sqlite3ExprListAppend(pParse,X, Y.pExpr);
- A = sqlite3ExprListAppend(pParse,A, Z.pExpr);
-}
-case_exprlist(A) ::= WHEN expr(Y) THEN expr(Z). {
- A = sqlite3ExprListAppend(pParse,0, Y.pExpr);
- A = sqlite3ExprListAppend(pParse,A, Z.pExpr);
-}
-%type case_else {Expr*}
-%destructor case_else {sqlite3ExprDelete(pParse->db, $$);}
-case_else(A) ::= ELSE expr(X). {A = X.pExpr;}
-case_else(A) ::= . {A = 0;}
-%type case_operand {Expr*}
-%destructor case_operand {sqlite3ExprDelete(pParse->db, $$);}
-case_operand(A) ::= expr(X). {A = X.pExpr;}
-case_operand(A) ::= . {A = 0;}
-
-%type exprlist {ExprList*}
-%destructor exprlist {sqlite3ExprListDelete(pParse->db, $$);}
-%type nexprlist {ExprList*}
-%destructor nexprlist {sqlite3ExprListDelete(pParse->db, $$);}
-
-exprlist(A) ::= nexprlist(X). {A = X;}
-exprlist(A) ::= . {A = 0;}
-nexprlist(A) ::= nexprlist(X) COMMA expr(Y).
- {A = sqlite3ExprListAppend(pParse,X,Y.pExpr);}
-nexprlist(A) ::= expr(Y).
- {A = sqlite3ExprListAppend(pParse,0,Y.pExpr);}
-
-
-///////////////////////////// The CREATE INDEX command ///////////////////////
-//
-cmd ::= createkw(S) uniqueflag(U) INDEX ifnotexists(NE) nm(X) dbnm(D)
- ON nm(Y) LP idxlist(Z) RP(E). {
- sqlite3CreateIndex(pParse, &X, &D,
- sqlite3SrcListAppend(pParse->db,0,&Y,0), Z, U,
- &S, &E, SQLITE_SO_ASC, NE);
-}
-
-%type uniqueflag {int}
-uniqueflag(A) ::= UNIQUE. {A = OE_Abort;}
-uniqueflag(A) ::= . {A = OE_None;}
-
-%type idxlist {ExprList*}
-%destructor idxlist {sqlite3ExprListDelete(pParse->db, $$);}
-%type idxlist_opt {ExprList*}
-%destructor idxlist_opt {sqlite3ExprListDelete(pParse->db, $$);}
-
-idxlist_opt(A) ::= . {A = 0;}
-idxlist_opt(A) ::= LP idxlist(X) RP. {A = X;}
-idxlist(A) ::= idxlist(X) COMMA nm(Y) collate(C) sortorder(Z). {
- Expr *p = 0;
- if( C.n>0 ){
- p = sqlite3Expr(pParse->db, TK_COLUMN, 0);
- sqlite3ExprSetColl(pParse, p, &C);
- }
- A = sqlite3ExprListAppend(pParse,X, p);
- sqlite3ExprListSetName(pParse,A,&Y,1);
- sqlite3ExprListCheckLength(pParse, A, "index");
- if( A ) A->a[A->nExpr-1].sortOrder = (u8)Z;
-}
-idxlist(A) ::= nm(Y) collate(C) sortorder(Z). {
- Expr *p = 0;
- if( C.n>0 ){
- p = sqlite3PExpr(pParse, TK_COLUMN, 0, 0, 0);
- sqlite3ExprSetColl(pParse, p, &C);
- }
- A = sqlite3ExprListAppend(pParse,0, p);
- sqlite3ExprListSetName(pParse, A, &Y, 1);
- sqlite3ExprListCheckLength(pParse, A, "index");
- if( A ) A->a[A->nExpr-1].sortOrder = (u8)Z;
-}
-
-%type collate {Token}
-collate(C) ::= . {C.z = 0; C.n = 0;}
-collate(C) ::= COLLATE ids(X). {C = X;}
-
-
-///////////////////////////// The DROP INDEX command /////////////////////////
-//
-cmd ::= DROP INDEX ifexists(E) fullname(X). {sqlite3DropIndex(pParse, X, E);}
-
-///////////////////////////// The VACUUM command /////////////////////////////
-//
-%ifndef SQLITE_OMIT_VACUUM
-%ifndef SQLITE_OMIT_ATTACH
-cmd ::= VACUUM. {sqlite3Vacuum(pParse);}
-cmd ::= VACUUM nm. {sqlite3Vacuum(pParse);}
-%endif SQLITE_OMIT_ATTACH
-%endif SQLITE_OMIT_VACUUM
-
-///////////////////////////// The PRAGMA command /////////////////////////////
-//
-%ifndef SQLITE_OMIT_PRAGMA
-cmd ::= PRAGMA nm(X) dbnm(Z). {sqlite3Pragma(pParse,&X,&Z,0,0);}
-cmd ::= PRAGMA nm(X) dbnm(Z) EQ nmnum(Y). {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
-cmd ::= PRAGMA nm(X) dbnm(Z) LP nmnum(Y) RP. {sqlite3Pragma(pParse,&X,&Z,&Y,0);}
-cmd ::= PRAGMA nm(X) dbnm(Z) EQ minus_num(Y).
- {sqlite3Pragma(pParse,&X,&Z,&Y,1);}
-cmd ::= PRAGMA nm(X) dbnm(Z) LP minus_num(Y) RP.
- {sqlite3Pragma(pParse,&X,&Z,&Y,1);}
-
-nmnum(A) ::= plus_num(X). {A = X;}
-nmnum(A) ::= nm(X). {A = X;}
-nmnum(A) ::= ON(X). {A = X;}
-nmnum(A) ::= DELETE(X). {A = X;}
-nmnum(A) ::= DEFAULT(X). {A = X;}
-%endif SQLITE_OMIT_PRAGMA
-plus_num(A) ::= plus_opt number(X). {A = X;}
-minus_num(A) ::= MINUS number(X). {A = X;}
-number(A) ::= INTEGER|FLOAT(X). {A = X;}
-plus_opt ::= PLUS.
-plus_opt ::= .
-
-//////////////////////////// The CREATE TRIGGER command /////////////////////
-
-%ifndef SQLITE_OMIT_TRIGGER
-
-cmd ::= createkw trigger_decl(A) BEGIN trigger_cmd_list(S) END(Z). {
- Token all;
- all.z = A.z;
- all.n = (int)(Z.z - A.z) + Z.n;
- sqlite3FinishTrigger(pParse, S, &all);
-}
-
-trigger_decl(A) ::= temp(T) TRIGGER ifnotexists(NOERR) nm(B) dbnm(Z)
- trigger_time(C) trigger_event(D)
- ON fullname(E) foreach_clause when_clause(G). {
- sqlite3BeginTrigger(pParse, &B, &Z, C, D.a, D.b, E, G, T, NOERR);
- A = (Z.n==0?B:Z);
-}
-
-%type trigger_time {int}
-trigger_time(A) ::= BEFORE. { A = TK_BEFORE; }
-trigger_time(A) ::= AFTER. { A = TK_AFTER; }
-trigger_time(A) ::= INSTEAD OF. { A = TK_INSTEAD;}
-trigger_time(A) ::= . { A = TK_BEFORE; }
-
-%type trigger_event {struct TrigEvent}
-%destructor trigger_event {sqlite3IdListDelete(pParse->db, $$.b);}
-trigger_event(A) ::= DELETE|INSERT(OP). {A.a = @OP; A.b = 0;}
-trigger_event(A) ::= UPDATE(OP). {A.a = @OP; A.b = 0;}
-trigger_event(A) ::= UPDATE OF inscollist(X). {A.a = TK_UPDATE; A.b = X;}
-
-foreach_clause ::= .
-foreach_clause ::= FOR EACH ROW.
-
-%type when_clause {Expr*}
-%destructor when_clause {sqlite3ExprDelete(pParse->db, $$);}
-when_clause(A) ::= . { A = 0; }
-when_clause(A) ::= WHEN expr(X). { A = X.pExpr; }
-
-%type trigger_cmd_list {TriggerStep*}
-%destructor trigger_cmd_list {sqlite3DeleteTriggerStep(pParse->db, $$);}
-trigger_cmd_list(A) ::= trigger_cmd_list(Y) trigger_cmd(X) SEMI. {
- assert( Y!=0 );
- Y->pLast->pNext = X;
- Y->pLast = X;
- A = Y;
-}
-trigger_cmd_list(A) ::= trigger_cmd(X) SEMI. {
- assert( X!=0 );
- X->pLast = X;
- A = X;
-}
-
-// Disallow qualified table names on INSERT, UPDATE, and DELETE statements
-// within a trigger. The table to INSERT, UPDATE, or DELETE is always in
-// the same database as the table that the trigger fires on.
-//
-%type trnm {Token}
-trnm(A) ::= nm(X). {A = X;}
-trnm(A) ::= nm DOT nm(X). {
- A = X;
- sqlite3ErrorMsg(pParse,
- "qualified table names are not allowed on INSERT, UPDATE, and DELETE "
- "statements within triggers");
-}
-
-// Disallow the INDEX BY and NOT INDEXED clauses on UPDATE and DELETE
-// statements within triggers. We make a specific error message for this
-// since it is an exception to the default grammar rules.
-//
-tridxby ::= .
-tridxby ::= INDEXED BY nm. {
- sqlite3ErrorMsg(pParse,
- "the INDEXED BY clause is not allowed on UPDATE or DELETE statements "
- "within triggers");
-}
-tridxby ::= NOT INDEXED. {
- sqlite3ErrorMsg(pParse,
- "the NOT INDEXED clause is not allowed on UPDATE or DELETE statements "
- "within triggers");
-}
-
-
-
-%type trigger_cmd {TriggerStep*}
-%destructor trigger_cmd {sqlite3DeleteTriggerStep(pParse->db, $$);}
-// UPDATE
-trigger_cmd(A) ::=
- UPDATE orconf(R) trnm(X) tridxby SET setlist(Y) where_opt(Z).
- { A = sqlite3TriggerUpdateStep(pParse->db, &X, Y, Z, R); }
-
-// INSERT
-trigger_cmd(A) ::=
- insert_cmd(R) INTO trnm(X) inscollist_opt(F) VALUES LP itemlist(Y) RP.
- {A = sqlite3TriggerInsertStep(pParse->db, &X, F, Y, 0, R);}
-
-trigger_cmd(A) ::= insert_cmd(R) INTO trnm(X) inscollist_opt(F) select(S).
- {A = sqlite3TriggerInsertStep(pParse->db, &X, F, 0, S, R);}
-
-// DELETE
-trigger_cmd(A) ::= DELETE FROM trnm(X) tridxby where_opt(Y).
- {A = sqlite3TriggerDeleteStep(pParse->db, &X, Y);}
-
-// SELECT
-trigger_cmd(A) ::= select(X). {A = sqlite3TriggerSelectStep(pParse->db, X); }
-
-// The special RAISE expression that may occur in trigger programs
-expr(A) ::= RAISE(X) LP IGNORE RP(Y). {
- A.pExpr = sqlite3PExpr(pParse, TK_RAISE, 0, 0, 0);
- if( A.pExpr ){
- A.pExpr->affinity = OE_Ignore;
- }
- A.zStart = X.z;
- A.zEnd = &Y.z[Y.n];
-}
-expr(A) ::= RAISE(X) LP raisetype(T) COMMA nm(Z) RP(Y). {
- A.pExpr = sqlite3PExpr(pParse, TK_RAISE, 0, 0, &Z);
- if( A.pExpr ) {
- A.pExpr->affinity = (char)T;
- }
- A.zStart = X.z;
- A.zEnd = &Y.z[Y.n];
-}
-%endif !SQLITE_OMIT_TRIGGER
-
-%type raisetype {int}
-raisetype(A) ::= ROLLBACK. {A = OE_Rollback;}
-raisetype(A) ::= ABORT. {A = OE_Abort;}
-raisetype(A) ::= FAIL. {A = OE_Fail;}
-
-
-//////////////////////// DROP TRIGGER statement //////////////////////////////
-%ifndef SQLITE_OMIT_TRIGGER
-cmd ::= DROP TRIGGER ifexists(NOERR) fullname(X). {
- sqlite3DropTrigger(pParse,X,NOERR);
-}
-%endif !SQLITE_OMIT_TRIGGER
-
-//////////////////////// ATTACH DATABASE file AS name /////////////////////////
-%ifndef SQLITE_OMIT_ATTACH
-cmd ::= ATTACH database_kw_opt expr(F) AS expr(D) key_opt(K). {
- sqlite3Attach(pParse, F.pExpr, D.pExpr, K);
-}
-cmd ::= DETACH database_kw_opt expr(D). {
- sqlite3Detach(pParse, D.pExpr);
-}
-
-%type key_opt {Expr*}
-%destructor key_opt {sqlite3ExprDelete(pParse->db, $$);}
-key_opt(A) ::= . { A = 0; }
-key_opt(A) ::= KEY expr(X). { A = X.pExpr; }
-
-database_kw_opt ::= DATABASE.
-database_kw_opt ::= .
-%endif SQLITE_OMIT_ATTACH
-
-////////////////////////// REINDEX collation //////////////////////////////////
-%ifndef SQLITE_OMIT_REINDEX
-cmd ::= REINDEX. {sqlite3Reindex(pParse, 0, 0);}
-cmd ::= REINDEX nm(X) dbnm(Y). {sqlite3Reindex(pParse, &X, &Y);}
-%endif SQLITE_OMIT_REINDEX
-
-/////////////////////////////////// ANALYZE ///////////////////////////////////
-%ifndef SQLITE_OMIT_ANALYZE
-cmd ::= ANALYZE. {sqlite3Analyze(pParse, 0, 0);}
-cmd ::= ANALYZE nm(X) dbnm(Y). {sqlite3Analyze(pParse, &X, &Y);}
-%endif
-
-//////////////////////// ALTER TABLE table ... ////////////////////////////////
-%ifndef SQLITE_OMIT_ALTERTABLE
-cmd ::= ALTER TABLE fullname(X) RENAME TO nm(Z). {
- sqlite3AlterRenameTable(pParse,X,&Z);
-}
-cmd ::= ALTER TABLE add_column_fullname ADD kwcolumn_opt column(Y). {
- sqlite3AlterFinishAddColumn(pParse, &Y);
-}
-add_column_fullname ::= fullname(X). {
- pParse->db->lookaside.bEnabled = 0;
- sqlite3AlterBeginAddColumn(pParse, X);
-}
-kwcolumn_opt ::= .
-kwcolumn_opt ::= COLUMNKW.
-%endif SQLITE_OMIT_ALTERTABLE
-
-//////////////////////// CREATE VIRTUAL TABLE ... /////////////////////////////
-%ifndef SQLITE_OMIT_VIRTUALTABLE
-cmd ::= create_vtab. {sqlite3VtabFinishParse(pParse,0);}
-cmd ::= create_vtab LP vtabarglist RP(X). {sqlite3VtabFinishParse(pParse,&X);}
-create_vtab ::= createkw VIRTUAL TABLE nm(X) dbnm(Y) USING nm(Z). {
- sqlite3VtabBeginParse(pParse, &X, &Y, &Z);
-}
-vtabarglist ::= vtabarg.
-vtabarglist ::= vtabarglist COMMA vtabarg.
-vtabarg ::= . {sqlite3VtabArgInit(pParse);}
-vtabarg ::= vtabarg vtabargtoken.
-vtabargtoken ::= ANY(X). {sqlite3VtabArgExtend(pParse,&X);}
-vtabargtoken ::= lp anylist RP(X). {sqlite3VtabArgExtend(pParse,&X);}
-lp ::= LP(X). {sqlite3VtabArgExtend(pParse,&X);}
-anylist ::= .
-anylist ::= anylist LP anylist RP.
-anylist ::= anylist ANY.
-%endif SQLITE_OMIT_VIRTUALTABLE
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