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Fix for ticket #1: Implement the GLOB and LIKE operators as functions that

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can be overridden.  This way, a developer can change the LIKE operator to
be case sensitive, for example. (CVS 537)

FossilOrigin-Name: 51572bf71774d7631c7083be90b806e621bc9bee
This commit is contained in:
drh
2002-04-20 14:24:41 +00:00
parent 67505e78c6
commit 0ac6589202
9 changed files with 94 additions and 143 deletions
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23
src/expr.c
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@@ -12,7 +12,7 @@
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.57 2002/03/24 13:13:29 drh Exp $
** $Id: expr.c,v 1.58 2002/04/20 14:24:42 drh Exp $
*/
#include "sqliteInt.h"
@@ -705,8 +705,6 @@ void sqliteExprCode(Parse *pParse, Expr *pExpr){
case TK_GE: op = OP_Ge; break;
case TK_NE: op = OP_Ne; break;
case TK_EQ: op = OP_Eq; break;
case TK_LIKE: op = OP_Like; break;
case TK_GLOB: op = OP_Glob; break;
case TK_ISNULL: op = OP_IsNull; break;
case TK_NOTNULL: op = OP_NotNull; break;
case TK_NOT: op = OP_Not; break;
@@ -784,9 +782,7 @@ void sqliteExprCode(Parse *pParse, Expr *pExpr){
case TK_GT:
case TK_GE:
case TK_NE:
case TK_EQ:
case TK_LIKE:
case TK_GLOB: {
case TK_EQ: {
int dest;
sqliteVdbeAddOp(v, OP_Integer, 1, 0);
sqliteExprCode(pParse, pExpr->pLeft);
@@ -938,8 +934,6 @@ void sqliteExprIfTrue(Parse *pParse, Expr *pExpr, int dest){
case TK_GE: op = OP_Ge; break;
case TK_NE: op = OP_Ne; break;
case TK_EQ: op = OP_Eq; break;
case TK_LIKE: op = OP_Like; break;
case TK_GLOB: op = OP_Glob; break;
case TK_ISNULL: op = OP_IsNull; break;
case TK_NOTNULL: op = OP_NotNull; break;
default: break;
@@ -966,9 +960,7 @@ void sqliteExprIfTrue(Parse *pParse, Expr *pExpr, int dest){
case TK_GT:
case TK_GE:
case TK_NE:
case TK_EQ:
case TK_LIKE:
case TK_GLOB: {
case TK_EQ: {
sqliteExprCode(pParse, pExpr->pLeft);
sqliteExprCode(pParse, pExpr->pRight);
sqliteVdbeAddOp(v, op, 0, dest);
@@ -1026,8 +1018,6 @@ void sqliteExprIfFalse(Parse *pParse, Expr *pExpr, int dest){
case TK_GE: op = OP_Lt; break;
case TK_NE: op = OP_Eq; break;
case TK_EQ: op = OP_Ne; break;
case TK_LIKE: op = OP_Like; break;
case TK_GLOB: op = OP_Glob; break;
case TK_ISNULL: op = OP_NotNull; break;
case TK_NOTNULL: op = OP_IsNull; break;
default: break;
@@ -1060,13 +1050,6 @@ void sqliteExprIfFalse(Parse *pParse, Expr *pExpr, int dest){
sqliteVdbeAddOp(v, op, 0, dest);
break;
}
case TK_LIKE:
case TK_GLOB: {
sqliteExprCode(pParse, pExpr->pLeft);
sqliteExprCode(pParse, pExpr->pRight);
sqliteVdbeAddOp(v, op, 1, dest);
break;
}
case TK_ISNULL:
case TK_NOTNULL: {
sqliteExprCode(pParse, pExpr->pLeft);