database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-07 02:42:48 +03:00
Code Activity

:-) (CVS 20)

Browse Source 
FossilOrigin-Name: 01d85b35e9c4ca5619ad21a4232a8f8bf9ec3538
This commit is contained in:
drh
2000-05-31 02:27:49 +00:00
parent 7e391e1728
commit dce2cbe65f
17 changed files with 505 additions and 131 deletions
Download Patch File Download Diff File Expand all files Collapse all files

107
src/vdbe.c
View File

@@ -41,7 +41,7 @@
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.2 2000/05/30 16:27:04 drh Exp $
** $Id: vdbe.c,v 1.3 2000/05/31 02:27:50 drh Exp $
*/
#include "sqliteInt.h"
@@ -391,23 +391,24 @@ void sqliteVdbeDelete(Vdbe *p){
** this array, then copy and paste it into this file, if you want.
*/
static char *zOpName[] = { 0,
"Open", "Close", "Destroy", "Fetch",
"New", "Put", "Delete", "Field",
"Key", "Rewind", "Next", "ResetIdx",
"NextIdx", "PutIdx", "DeleteIdx", "ListOpen",
"ListWrite", "ListRewind", "ListRead", "ListClose",
"SortOpen", "SortPut", "SortMakeRec", "SortMakeKey",
"Sort", "SortNext", "SortKey", "SortCallback",
"SortClose", "FileOpen", "FileRead", "FileField",
"FileClose", "MakeRecord", "MakeKey", "Goto",
"If", "Halt", "ColumnCount", "ColumnName",
"Callback", "Integer", "String", "Pop",
"Dup", "Pull", "Add", "AddImm",
"Subtract", "Multiply", "Divide", "Min",
"Max", "Eq", "Ne", "Lt",
"Le", "Gt", "Ge", "IsNull",
"NotNull", "Negative", "And", "Or",
"Not", "Concat", "Noop",
"Open", "Close", "Fetch", "New",
"Put", "Delete", "Field", "Key",
"Rewind", "Next", "Destroy", "Reorganize",
"ResetIdx", "NextIdx", "PutIdx", "DeleteIdx",
"ListOpen", "ListWrite", "ListRewind", "ListRead",
"ListClose", "SortOpen", "SortPut", "SortMakeRec",
"SortMakeKey", "Sort", "SortNext", "SortKey",
"SortCallback", "SortClose", "FileOpen", "FileRead",
"FileField", "FileClose", "MakeRecord", "MakeKey",
"Goto", "If", "Halt", "ColumnCount",
"ColumnName", "Callback", "Integer", "String",
"Pop", "Dup", "Pull", "Add",
"AddImm", "Subtract", "Multiply", "Divide",
"Min", "Max", "Like", "Glob",
"Eq", "Ne", "Lt", "Le",
"Gt", "Ge", "IsNull", "NotNull",
"Negative", "And", "Or", "Not",
"Concat", "Noop",
};
/*
@@ -997,6 +998,67 @@ int sqliteVdbeExec(
break;
}
/* Opcode: Like P1 P2 *
**
** Pop the top two elements from the stack. The top-most is a
** "like" pattern -- the right operand of the SQL "LIKE" operator.
** The lower element is the string to compare against the like
** pattern. Jump to P2 if the two compare, and fall through without
** jumping if they do not. The '%' in the top-most element matches
** any sequence of zero or more characters in the lower element. The
** '_' character in the topmost matches any single character of the
** lower element. Case is ignored for this comparison.
**
** If P1 is not zero, the sense of the test is inverted and we
** have a "NOT LIKE" operator. The jump is made if the two values
** are different.
*/
case OP_Like: {
int tos = p->tos;
int nos = tos - 1;
int c;
if( nos<0 ) goto not_enough_stack;
Stringify(p, tos);
Stringify(p, nos);
c = sqliteLikeCompare(p->zStack[tos], p->zStack[nos]);
PopStack(p, 2);
if( pOp->p1 ) c = !c;
if( c ) pc = pOp->p2-1;
break;
}
/* Opcode: Glob P1 P2 *
**
** Pop the top two elements from the stack. The top-most is a
** "glob" pattern. The lower element is the string to compare
** against the glob pattern.
**
** Jump to P2 if the two compare, and fall through without
** jumping if they do not. The '*' in the top-most element matches
** any sequence of zero or more characters in the lower element. The
** '?' character in the topmost matches any single character of the
** lower element. [...] matches a range of characters. [^...]
** matches any character not in the range. Case is significant
** for globs.
**
** If P1 is not zero, the sense of the test is inverted and we
** have a "NOT GLOB" operator. The jump is made if the two values
** are different.
*/
case OP_Glob: {
int tos = p->tos;
int nos = tos - 1;
int c;
if( nos<0 ) goto not_enough_stack;
Stringify(p, tos);
Stringify(p, nos);
c = sqliteGlobCompare(p->zStack[tos], p->zStack[nos]);
PopStack(p, 2);
if( pOp->p1 ) c = !c;
if( c ) pc = pOp->p2-1;
break;
}
/* Opcode: And * * *
**
** Pop two values off the stack. Take the logical AND of the
@@ -1581,6 +1643,15 @@ int sqliteVdbeExec(
break;
}
/* Opcode: Reorganize * * P3
**
** Compress, optimize, and tidy up the GDBM file named by P3.
*/
case OP_Reorganize: {
sqliteDbbeReorganizeTable(p->pBe, pOp->p3);
break;
}
/* Opcode: ListOpen P1 * *
**
** Open a file used for temporary storage of index numbers. P1