Index: third_party/sqlite/sqlite-src-3170000/src/test_tclvar.c |
diff --git a/third_party/sqlite/sqlite-src-3170000/src/test_tclvar.c b/third_party/sqlite/sqlite-src-3170000/src/test_tclvar.c |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8f7352112dd82caac71db832edac38cf03d6be9a |
--- /dev/null |
+++ b/third_party/sqlite/sqlite-src-3170000/src/test_tclvar.c |
@@ -0,0 +1,476 @@ |
+/* |
+** 2006 June 13 |
+** |
+** 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. |
+** |
+************************************************************************* |
+** Code for testing the virtual table interfaces. This code |
+** is not included in the SQLite library. It is used for automated |
+** testing of the SQLite library. |
+** |
+** The emphasis of this file is a virtual table that provides |
+** access to TCL variables. |
+*/ |
+#include "sqliteInt.h" |
+#if defined(INCLUDE_SQLITE_TCL_H) |
+# include "sqlite_tcl.h" |
+#else |
+# include "tcl.h" |
+#endif |
+#include <stdlib.h> |
+#include <string.h> |
+ |
+#ifndef SQLITE_OMIT_VIRTUALTABLE |
+ |
+/* |
+** Characters that make up the idxStr created by xBestIndex for xFilter. |
+*/ |
+#define TCLVAR_NAME_EQ 'e' |
+#define TCLVAR_NAME_MATCH 'm' |
+#define TCLVAR_VALUE_GLOB 'g' |
+#define TCLVAR_VALUE_REGEXP 'r' |
+#define TCLVAR_VALUE_LIKE 'l' |
+ |
+typedef struct tclvar_vtab tclvar_vtab; |
+typedef struct tclvar_cursor tclvar_cursor; |
+ |
+/* |
+** A tclvar virtual-table object |
+*/ |
+struct tclvar_vtab { |
+ sqlite3_vtab base; |
+ Tcl_Interp *interp; |
+}; |
+ |
+/* A tclvar cursor object */ |
+struct tclvar_cursor { |
+ sqlite3_vtab_cursor base; |
+ |
+ Tcl_Obj *pList1; /* Result of [info vars ?pattern?] */ |
+ Tcl_Obj *pList2; /* Result of [array names [lindex $pList1 $i1]] */ |
+ int i1; /* Current item in pList1 */ |
+ int i2; /* Current item (if any) in pList2 */ |
+}; |
+ |
+/* Methods for the tclvar module */ |
+static int tclvarConnect( |
+ sqlite3 *db, |
+ void *pAux, |
+ int argc, const char *const*argv, |
+ sqlite3_vtab **ppVtab, |
+ char **pzErr |
+){ |
+ tclvar_vtab *pVtab; |
+ static const char zSchema[] = |
+ "CREATE TABLE whatever(name TEXT, arrayname TEXT, value TEXT)"; |
+ pVtab = sqlite3MallocZero( sizeof(*pVtab) ); |
+ if( pVtab==0 ) return SQLITE_NOMEM; |
+ *ppVtab = &pVtab->base; |
+ pVtab->interp = (Tcl_Interp *)pAux; |
+ sqlite3_declare_vtab(db, zSchema); |
+ return SQLITE_OK; |
+} |
+/* Note that for this virtual table, the xCreate and xConnect |
+** methods are identical. */ |
+ |
+static int tclvarDisconnect(sqlite3_vtab *pVtab){ |
+ sqlite3_free(pVtab); |
+ return SQLITE_OK; |
+} |
+/* The xDisconnect and xDestroy methods are also the same */ |
+ |
+/* |
+** Open a new tclvar cursor. |
+*/ |
+static int tclvarOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){ |
+ tclvar_cursor *pCur; |
+ pCur = sqlite3MallocZero(sizeof(tclvar_cursor)); |
+ *ppCursor = &pCur->base; |
+ return SQLITE_OK; |
+} |
+ |
+/* |
+** Close a tclvar cursor. |
+*/ |
+static int tclvarClose(sqlite3_vtab_cursor *cur){ |
+ tclvar_cursor *pCur = (tclvar_cursor *)cur; |
+ if( pCur->pList1 ){ |
+ Tcl_DecrRefCount(pCur->pList1); |
+ } |
+ if( pCur->pList2 ){ |
+ Tcl_DecrRefCount(pCur->pList2); |
+ } |
+ sqlite3_free(pCur); |
+ return SQLITE_OK; |
+} |
+ |
+/* |
+** Returns 1 if data is ready, or 0 if not. |
+*/ |
+static int next2(Tcl_Interp *interp, tclvar_cursor *pCur, Tcl_Obj *pObj){ |
+ Tcl_Obj *p; |
+ |
+ if( pObj ){ |
+ if( !pCur->pList2 ){ |
+ p = Tcl_NewStringObj("array names", -1); |
+ Tcl_IncrRefCount(p); |
+ Tcl_ListObjAppendElement(0, p, pObj); |
+ Tcl_EvalObjEx(interp, p, TCL_EVAL_GLOBAL); |
+ Tcl_DecrRefCount(p); |
+ pCur->pList2 = Tcl_GetObjResult(interp); |
+ Tcl_IncrRefCount(pCur->pList2); |
+ assert( pCur->i2==0 ); |
+ }else{ |
+ int n = 0; |
+ pCur->i2++; |
+ Tcl_ListObjLength(0, pCur->pList2, &n); |
+ if( pCur->i2>=n ){ |
+ Tcl_DecrRefCount(pCur->pList2); |
+ pCur->pList2 = 0; |
+ pCur->i2 = 0; |
+ return 0; |
+ } |
+ } |
+ } |
+ |
+ return 1; |
+} |
+ |
+static int tclvarNext(sqlite3_vtab_cursor *cur){ |
+ Tcl_Obj *pObj; |
+ int n = 0; |
+ int ok = 0; |
+ |
+ tclvar_cursor *pCur = (tclvar_cursor *)cur; |
+ Tcl_Interp *interp = ((tclvar_vtab *)(cur->pVtab))->interp; |
+ |
+ Tcl_ListObjLength(0, pCur->pList1, &n); |
+ while( !ok && pCur->i1<n ){ |
+ Tcl_ListObjIndex(0, pCur->pList1, pCur->i1, &pObj); |
+ ok = next2(interp, pCur, pObj); |
+ if( !ok ){ |
+ pCur->i1++; |
+ } |
+ } |
+ |
+ return 0; |
+} |
+ |
+static int tclvarFilter( |
+ sqlite3_vtab_cursor *pVtabCursor, |
+ int idxNum, const char *idxStr, |
+ int argc, sqlite3_value **argv |
+){ |
+ tclvar_cursor *pCur = (tclvar_cursor *)pVtabCursor; |
+ Tcl_Interp *interp = ((tclvar_vtab *)(pVtabCursor->pVtab))->interp; |
+ Tcl_Obj *p = Tcl_NewStringObj("tclvar_filter_cmd", -1); |
+ |
+ const char *zEq = ""; |
+ const char *zMatch = ""; |
+ const char *zGlob = ""; |
+ const char *zRegexp = ""; |
+ const char *zLike = ""; |
+ int i; |
+ |
+ for(i=0; idxStr[i]; i++){ |
+ switch( idxStr[i] ){ |
+ case TCLVAR_NAME_EQ: |
+ zEq = (const char*)sqlite3_value_text(argv[i]); |
+ break; |
+ case TCLVAR_NAME_MATCH: |
+ zMatch = (const char*)sqlite3_value_text(argv[i]); |
+ break; |
+ case TCLVAR_VALUE_GLOB: |
+ zGlob = (const char*)sqlite3_value_text(argv[i]); |
+ break; |
+ case TCLVAR_VALUE_REGEXP: |
+ zRegexp = (const char*)sqlite3_value_text(argv[i]); |
+ break; |
+ case TCLVAR_VALUE_LIKE: |
+ zLike = (const char*)sqlite3_value_text(argv[i]); |
+ break; |
+ default: |
+ assert( 0 ); |
+ } |
+ } |
+ |
+ Tcl_IncrRefCount(p); |
+ Tcl_ListObjAppendElement(0, p, Tcl_NewStringObj(zEq, -1)); |
+ Tcl_ListObjAppendElement(0, p, Tcl_NewStringObj(zMatch, -1)); |
+ Tcl_ListObjAppendElement(0, p, Tcl_NewStringObj(zGlob, -1)); |
+ Tcl_ListObjAppendElement(0, p, Tcl_NewStringObj(zRegexp, -1)); |
+ Tcl_ListObjAppendElement(0, p, Tcl_NewStringObj(zLike, -1)); |
+ |
+ Tcl_EvalObjEx(interp, p, TCL_EVAL_GLOBAL); |
+ if( pCur->pList1 ){ |
+ Tcl_DecrRefCount(pCur->pList1); |
+ } |
+ if( pCur->pList2 ){ |
+ Tcl_DecrRefCount(pCur->pList2); |
+ pCur->pList2 = 0; |
+ } |
+ pCur->i1 = 0; |
+ pCur->i2 = 0; |
+ pCur->pList1 = Tcl_GetObjResult(interp); |
+ Tcl_IncrRefCount(pCur->pList1); |
+ |
+ Tcl_DecrRefCount(p); |
+ return tclvarNext(pVtabCursor); |
+} |
+ |
+static int tclvarColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){ |
+ Tcl_Obj *p1; |
+ Tcl_Obj *p2; |
+ const char *z1; |
+ const char *z2 = ""; |
+ tclvar_cursor *pCur = (tclvar_cursor*)cur; |
+ Tcl_Interp *interp = ((tclvar_vtab *)cur->pVtab)->interp; |
+ |
+ Tcl_ListObjIndex(interp, pCur->pList1, pCur->i1, &p1); |
+ Tcl_ListObjIndex(interp, pCur->pList2, pCur->i2, &p2); |
+ z1 = Tcl_GetString(p1); |
+ if( p2 ){ |
+ z2 = Tcl_GetString(p2); |
+ } |
+ switch (i) { |
+ case 0: { |
+ sqlite3_result_text(ctx, z1, -1, SQLITE_TRANSIENT); |
+ break; |
+ } |
+ case 1: { |
+ sqlite3_result_text(ctx, z2, -1, SQLITE_TRANSIENT); |
+ break; |
+ } |
+ case 2: { |
+ Tcl_Obj *pVal = Tcl_GetVar2Ex(interp, z1, *z2?z2:0, TCL_GLOBAL_ONLY); |
+ sqlite3_result_text(ctx, Tcl_GetString(pVal), -1, SQLITE_TRANSIENT); |
+ break; |
+ } |
+ } |
+ return SQLITE_OK; |
+} |
+ |
+static int tclvarRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){ |
+ *pRowid = 0; |
+ return SQLITE_OK; |
+} |
+ |
+static int tclvarEof(sqlite3_vtab_cursor *cur){ |
+ tclvar_cursor *pCur = (tclvar_cursor*)cur; |
+ return (pCur->pList2?0:1); |
+} |
+ |
+/* |
+** If nul-terminated string zStr does not already contain the character |
+** passed as the second argument, append it and return 0. Or, if there is |
+** already an instance of x in zStr, do nothing return 1; |
+** |
+** There is guaranteed to be enough room in the buffer pointed to by zStr |
+** for the new character and nul-terminator. |
+*/ |
+static int tclvarAddToIdxstr(char *zStr, char x){ |
+ int i; |
+ for(i=0; zStr[i]; i++){ |
+ if( zStr[i]==x ) return 1; |
+ } |
+ zStr[i] = x; |
+ zStr[i+1] = '\0'; |
+ return 0; |
+} |
+ |
+/* |
+** Return true if variable $::tclvar_set_omit exists and is set to true. |
+** False otherwise. |
+*/ |
+static int tclvarSetOmit(Tcl_Interp *interp){ |
+ int rc; |
+ int res = 0; |
+ Tcl_Obj *pRes; |
+ rc = Tcl_Eval(interp, |
+ "expr {[info exists ::tclvar_set_omit] && $::tclvar_set_omit}" |
+ ); |
+ if( rc==TCL_OK ){ |
+ pRes = Tcl_GetObjResult(interp); |
+ rc = Tcl_GetBooleanFromObj(0, pRes, &res); |
+ } |
+ return (rc==TCL_OK && res); |
+} |
+ |
+/* |
+** The xBestIndex() method. This virtual table supports the following |
+** operators: |
+** |
+** name = ? (omit flag clear) |
+** name MATCH ? (omit flag set) |
+** value GLOB ? (omit flag set iff $::tclvar_set_omit) |
+** value REGEXP ? (omit flag set iff $::tclvar_set_omit) |
+** value LIKE ? (omit flag set iff $::tclvar_set_omit) |
+** |
+** For each constraint present, the corresponding TCLVAR_XXX character is |
+** appended to the idxStr value. |
+*/ |
+static int tclvarBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){ |
+ tclvar_vtab *pTab = (tclvar_vtab*)tab; |
+ int ii; |
+ char *zStr = sqlite3_malloc(32); |
+ int iStr = 0; |
+ |
+ if( zStr==0 ) return SQLITE_NOMEM; |
+ zStr[0] = '\0'; |
+ |
+ for(ii=0; ii<pIdxInfo->nConstraint; ii++){ |
+ struct sqlite3_index_constraint const *pCons = &pIdxInfo->aConstraint[ii]; |
+ struct sqlite3_index_constraint_usage *pUsage; |
+ |
+ pUsage = &pIdxInfo->aConstraintUsage[ii]; |
+ if( pCons->usable ){ |
+ /* name = ? */ |
+ if( pCons->op==SQLITE_INDEX_CONSTRAINT_EQ && pCons->iColumn==0 ){ |
+ if( 0==tclvarAddToIdxstr(zStr, TCLVAR_NAME_EQ) ){ |
+ pUsage->argvIndex = ++iStr; |
+ pUsage->omit = 0; |
+ } |
+ } |
+ |
+ /* name MATCH ? */ |
+ if( pCons->op==SQLITE_INDEX_CONSTRAINT_MATCH && pCons->iColumn==0 ){ |
+ if( 0==tclvarAddToIdxstr(zStr, TCLVAR_NAME_MATCH) ){ |
+ pUsage->argvIndex = ++iStr; |
+ pUsage->omit = 1; |
+ } |
+ } |
+ |
+ /* value GLOB ? */ |
+ if( pCons->op==SQLITE_INDEX_CONSTRAINT_GLOB && pCons->iColumn==2 ){ |
+ if( 0==tclvarAddToIdxstr(zStr, TCLVAR_VALUE_GLOB) ){ |
+ pUsage->argvIndex = ++iStr; |
+ pUsage->omit = tclvarSetOmit(pTab->interp); |
+ } |
+ } |
+ |
+ /* value REGEXP ? */ |
+ if( pCons->op==SQLITE_INDEX_CONSTRAINT_REGEXP && pCons->iColumn==2 ){ |
+ if( 0==tclvarAddToIdxstr(zStr, TCLVAR_VALUE_REGEXP) ){ |
+ pUsage->argvIndex = ++iStr; |
+ pUsage->omit = tclvarSetOmit(pTab->interp); |
+ } |
+ } |
+ |
+ /* value LIKE ? */ |
+ if( pCons->op==SQLITE_INDEX_CONSTRAINT_LIKE && pCons->iColumn==2 ){ |
+ if( 0==tclvarAddToIdxstr(zStr, TCLVAR_VALUE_LIKE) ){ |
+ pUsage->argvIndex = ++iStr; |
+ pUsage->omit = tclvarSetOmit(pTab->interp); |
+ } |
+ } |
+ } |
+ } |
+ pIdxInfo->idxStr = zStr; |
+ pIdxInfo->needToFreeIdxStr = 1; |
+ |
+ return SQLITE_OK; |
+} |
+ |
+/* |
+** A virtual table module that provides read-only access to a |
+** Tcl global variable namespace. |
+*/ |
+static sqlite3_module tclvarModule = { |
+ 0, /* iVersion */ |
+ tclvarConnect, |
+ tclvarConnect, |
+ tclvarBestIndex, |
+ tclvarDisconnect, |
+ tclvarDisconnect, |
+ tclvarOpen, /* xOpen - open a cursor */ |
+ tclvarClose, /* xClose - close a cursor */ |
+ tclvarFilter, /* xFilter - configure scan constraints */ |
+ tclvarNext, /* xNext - advance a cursor */ |
+ tclvarEof, /* xEof - check for end of scan */ |
+ tclvarColumn, /* xColumn - read data */ |
+ tclvarRowid, /* xRowid - read data */ |
+ 0, /* xUpdate */ |
+ 0, /* xBegin */ |
+ 0, /* xSync */ |
+ 0, /* xCommit */ |
+ 0, /* xRollback */ |
+ 0, /* xFindMethod */ |
+ 0, /* xRename */ |
+}; |
+ |
+/* |
+** Decode a pointer to an sqlite3 object. |
+*/ |
+extern int getDbPointer(Tcl_Interp *interp, const char *zA, sqlite3 **ppDb); |
+ |
+/* |
+** Register the echo virtual table module. |
+*/ |
+static int SQLITE_TCLAPI register_tclvar_module( |
+ ClientData clientData, /* Pointer to sqlite3_enable_XXX function */ |
+ Tcl_Interp *interp, /* The TCL interpreter that invoked this command */ |
+ int objc, /* Number of arguments */ |
+ Tcl_Obj *CONST objv[] /* Command arguments */ |
+){ |
+ int rc = TCL_OK; |
+ sqlite3 *db; |
+ if( objc!=2 ){ |
+ Tcl_WrongNumArgs(interp, 1, objv, "DB"); |
+ return TCL_ERROR; |
+ } |
+ if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR; |
+#ifndef SQLITE_OMIT_VIRTUALTABLE |
+ sqlite3_create_module(db, "tclvar", &tclvarModule, (void*)interp); |
+ rc = Tcl_Eval(interp, |
+ "proc like {pattern str} {\n" |
+ " set p [string map {% * _ ?} $pattern]\n" |
+ " string match $p $str\n" |
+ "}\n" |
+ "proc tclvar_filter_cmd {eq match glob regexp like} {\n" |
+ " set res {}\n" |
+ " set pattern $eq\n" |
+ " if {$pattern=={}} { set pattern $match }\n" |
+ " if {$pattern=={}} { set pattern * }\n" |
+ " foreach v [uplevel #0 info vars $pattern] {\n" |
+ " if {($glob=={} || [string match $glob [uplevel #0 set $v]])\n" |
+ " && ($like=={} || [like $like [uplevel #0 set $v]])\n" |
+ " && ($regexp=={} || [regexp $regexp [uplevel #0 set $v]])\n" |
+ " } {\n" |
+ " lappend res $v\n" |
+ " }\n" |
+ " }\n" |
+ " set res\n" |
+ "}\n" |
+ ); |
+#endif |
+ return rc; |
+} |
+ |
+#endif |
+ |
+ |
+/* |
+** Register commands with the TCL interpreter. |
+*/ |
+int Sqlitetesttclvar_Init(Tcl_Interp *interp){ |
+#ifndef SQLITE_OMIT_VIRTUALTABLE |
+ static struct { |
+ char *zName; |
+ Tcl_ObjCmdProc *xProc; |
+ void *clientData; |
+ } aObjCmd[] = { |
+ { "register_tclvar_module", register_tclvar_module, 0 }, |
+ }; |
+ int i; |
+ for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){ |
+ Tcl_CreateObjCommand(interp, aObjCmd[i].zName, |
+ aObjCmd[i].xProc, aObjCmd[i].clientData, 0); |
+ } |
+#endif |
+ return TCL_OK; |
+} |