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Overview
| Comment: | Remove a couple of unnecessary nonterminals from the grammar. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
2b2a7d8d736d1e72f847f443b9957e41 |
| User & Date: | drh 2012-01-28 19:44:22 |
Context
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2012-01-28
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| 21:08 | Update the .dump command of the command-line shell so that it (1) avoids putting the semicolon of a DDL statement on the same line as a comment, (2) avoids long expression, even when dumping a table with many columns, and (3) avoids unnecessary quoting of the table name. This fixes tickets [c04a8b8a4f] and [232637c465]. Shell change only; no changes to the SQLite core. check-in: e6eea8d5 user: drh tags: trunk | |
| 19:44 | Remove a couple of unnecessary nonterminals from the grammar. check-in: 2b2a7d8d user: drh tags: trunk | |
| 19:41 | Add support for IF NOT EXISTS on CREATE VIRTUAL TABLE. check-in: 230983e8 user: drh tags: trunk | |
Changes
Changes to src/parse.y.
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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, $$);}
orderby_opt(A) ::= . {A = 0;}
orderby_opt(A) ::= ORDER BY sortlist(X). {A = X;}
sortlist(A) ::= sortlist(X) COMMA sortitem(Y) sortorder(Z). {
A = sqlite3ExprListAppend(pParse,X,Y);
if( A ) A->a[A->nExpr-1].sortOrder = (u8)Z;
}
sortlist(A) ::= sortitem(Y) sortorder(Z). {
A = sqlite3ExprListAppend(pParse,0,Y);
if( A && ALWAYS(A->a) ) A->a[0].sortOrder = (u8)Z;
}
sortitem(A) ::= expr(X). {A = X.pExpr;}
%type sortorder {int}
sortorder(A) ::= ASC. {A = SQLITE_SO_ASC;}
sortorder(A) ::= DESC. {A = SQLITE_SO_DESC;}
sortorder(A) ::= . {A = SQLITE_SO_ASC;}
................................................................................
nmnum(A) ::= plus_num(X). {A = X;}
nmnum(A) ::= nm(X). {A = X;}
nmnum(A) ::= ON(X). {A = X;}
nmnum(A) ::= DELETE(X). {A = X;}
nmnum(A) ::= DEFAULT(X). {A = X;}
%endif SQLITE_OMIT_PRAGMA
plus_num(A) ::= plus_opt number(X). {A = X;}
minus_num(A) ::= MINUS number(X). {A = X;}
number(A) ::= INTEGER|FLOAT(X). {A = X;}
plus_opt ::= PLUS.
plus_opt ::= .
//////////////////////////// The CREATE TRIGGER command /////////////////////
%ifndef SQLITE_OMIT_TRIGGER
cmd ::= createkw trigger_decl(A) BEGIN trigger_cmd_list(S) END(Z). {
Token all;
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using_opt(U) ::= . {U = 0;}
%type orderby_opt {ExprList*}
%destructor orderby_opt {sqlite3ExprListDelete(pParse->db, $$);}
%type sortlist {ExprList*}
%destructor sortlist {sqlite3ExprListDelete(pParse->db, $$);}
orderby_opt(A) ::= . {A = 0;}
orderby_opt(A) ::= ORDER BY sortlist(X). {A = X;}
sortlist(A) ::= sortlist(X) COMMA expr(Y) sortorder(Z). {
A = sqlite3ExprListAppend(pParse,X,Y.pExpr);
if( A ) A->a[A->nExpr-1].sortOrder = (u8)Z;
}
sortlist(A) ::= expr(Y) sortorder(Z). {
A = sqlite3ExprListAppend(pParse,0,Y.pExpr);
if( A && ALWAYS(A->a) ) A->a[0].sortOrder = (u8)Z;
}
%type sortorder {int}
sortorder(A) ::= ASC. {A = SQLITE_SO_ASC;}
sortorder(A) ::= DESC. {A = SQLITE_SO_DESC;}
sortorder(A) ::= . {A = SQLITE_SO_ASC;}
................................................................................
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 number(X). {A = X;}
plus_num(A) ::= number(X). {A = X;}
minus_num(A) ::= MINUS number(X). {A = X;}
number(A) ::= INTEGER|FLOAT(X). {A = X;}
//////////////////////////// The CREATE TRIGGER command /////////////////////
%ifndef SQLITE_OMIT_TRIGGER
cmd ::= createkw trigger_decl(A) BEGIN trigger_cmd_list(S) END(Z). {
Token all;
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