1 /* 2 ** 2001 September 15 3 ** 4 ** The author disclaims copyright to this source code. In place of 5 ** a legal notice, here is a blessing: 6 ** 7 ** May you do good and not evil. 8 ** May you find forgiveness for yourself and forgive others. 9 ** May you share freely, never taking more than you give. 10 ** 11 ************************************************************************* 12 ** Code for testing the utf.c module in SQLite. This code 13 ** is not included in the SQLite library. It is used for automated 14 ** testing of the SQLite library. Specifically, the code in this file 15 ** is used for testing the SQLite routines for converting between 16 ** the various supported unicode encodings. 17 */ 18 #include "sqliteInt.h" 19 #include "vdbeInt.h" 20 #include "tcl.h" 21 #include <stdlib.h> 22 #include <string.h> 23 24 /* 25 ** The first argument is a TCL UTF-8 string. Return the byte array 26 ** object with the encoded representation of the string, including 27 ** the NULL terminator. 28 */ 29 static int binarize( 30 void * clientData, 31 Tcl_Interp *interp, 32 int objc, 33 Tcl_Obj *CONST objv[] 34 ){ 35 int len; 36 char *bytes; 37 Tcl_Obj *pRet; 38 assert(objc==2); 39 40 bytes = Tcl_GetStringFromObj(objv[1], &len); 41 pRet = Tcl_NewByteArrayObj((u8*)bytes, len+1); 42 Tcl_SetObjResult(interp, pRet); 43 return TCL_OK; 44 } 45 46 /* 47 ** Usage: test_value_overhead <repeat-count> <do-calls>. 48 ** 49 ** This routine is used to test the overhead of calls to 50 ** sqlite3_value_text(), on a value that contains a UTF-8 string. The idea 51 ** is to figure out whether or not it is a problem to use sqlite3_value 52 ** structures with collation sequence functions. 53 ** 54 ** If <do-calls> is 0, then the calls to sqlite3_value_text() are not 55 ** actually made. 56 */ 57 static int test_value_overhead( 58 void * clientData, 59 Tcl_Interp *interp, 60 int objc, 61 Tcl_Obj *CONST objv[] 62 ){ 63 int do_calls; 64 int repeat_count; 65 int i; 66 Mem val; 67 const char *zVal; 68 69 if( objc!=3 ){ 70 Tcl_AppendResult(interp, "wrong # args: should be \"", 71 Tcl_GetStringFromObj(objv[0], 0), " <repeat-count> <do-calls>", 0); 72 return TCL_ERROR; 73 } 74 75 if( Tcl_GetIntFromObj(interp, objv[1], &repeat_count) ) return TCL_ERROR; 76 if( Tcl_GetIntFromObj(interp, objv[2], &do_calls) ) return TCL_ERROR; 77 78 val.flags = MEM_Str|MEM_Term|MEM_Static; 79 val.z = "hello world"; 80 val.type = SQLITE_TEXT; 81 val.enc = SQLITE_UTF8; 82 83 for(i=0; i<repeat_count; i++){ 84 if( do_calls ){ 85 zVal = (char*)sqlite3_value_text(&val); 86 } 87 } 88 89 return TCL_OK; 90 } 91 92 static u8 name_to_enc(Tcl_Interp *interp, Tcl_Obj *pObj){ 93 struct EncName { 94 char *zName; 95 u8 enc; 96 } encnames[] = { 97 { "UTF8", SQLITE_UTF8 }, 98 { "UTF16LE", SQLITE_UTF16LE }, 99 { "UTF16BE", SQLITE_UTF16BE }, 100 { "UTF16", SQLITE_UTF16 }, 101 { 0, 0 } 102 }; 103 struct EncName *pEnc; 104 char *z = Tcl_GetString(pObj); 105 for(pEnc=&encnames[0]; pEnc->zName; pEnc++){ 106 if( 0==sqlite3StrICmp(z, pEnc->zName) ){ 107 break; 108 } 109 } 110 if( !pEnc->enc ){ 111 Tcl_AppendResult(interp, "No such encoding: ", z, 0); 112 } 113 if( pEnc->enc==SQLITE_UTF16 ){ 114 return SQLITE_UTF16NATIVE; 115 } 116 return pEnc->enc; 117 } 118 119 /* 120 ** Usage: test_translate <string/blob> <from enc> <to enc> ?<transient>? 121 ** 122 */ 123 static int test_translate( 124 void * clientData, 125 Tcl_Interp *interp, 126 int objc, 127 Tcl_Obj *CONST objv[] 128 ){ 129 u8 enc_from; 130 u8 enc_to; 131 sqlite3_value *pVal; 132 133 char *z; 134 int len; 135 void (*xDel)(void *p) = SQLITE_STATIC; 136 137 if( objc!=4 && objc!=5 ){ 138 Tcl_AppendResult(interp, "wrong # args: should be \"", 139 Tcl_GetStringFromObj(objv[0], 0), 140 " <string/blob> <from enc> <to enc>", 0 141 ); 142 return TCL_ERROR; 143 } 144 if( objc==5 ){ 145 xDel = sqlite3_free; 146 } 147 148 enc_from = name_to_enc(interp, objv[2]); 149 if( !enc_from ) return TCL_ERROR; 150 enc_to = name_to_enc(interp, objv[3]); 151 if( !enc_to ) return TCL_ERROR; 152 153 pVal = sqlite3ValueNew(0); 154 155 if( enc_from==SQLITE_UTF8 ){ 156 z = Tcl_GetString(objv[1]); 157 if( objc==5 ){ 158 z = sqlite3_mprintf("%s", z); 159 } 160 sqlite3ValueSetStr(pVal, -1, z, enc_from, xDel); 161 }else{ 162 z = (char*)Tcl_GetByteArrayFromObj(objv[1], &len); 163 if( objc==5 ){ 164 char *zTmp = z; 165 z = sqlite3_malloc(len); 166 memcpy(z, zTmp, len); 167 } 168 sqlite3ValueSetStr(pVal, -1, z, enc_from, xDel); 169 } 170 171 z = (char *)sqlite3ValueText(pVal, enc_to); 172 len = sqlite3ValueBytes(pVal, enc_to) + (enc_to==SQLITE_UTF8?1:2); 173 Tcl_SetObjResult(interp, Tcl_NewByteArrayObj((u8*)z, len)); 174 175 sqlite3ValueFree(pVal); 176 177 return TCL_OK; 178 } 179 180 /* 181 ** Usage: translate_selftest 182 ** 183 ** Call sqlite3UtfSelfTest() to run the internal tests for unicode 184 ** translation. If there is a problem an assert() will fail. 185 **/ 186 void sqlite3UtfSelfTest(void); 187 static int test_translate_selftest( 188 void * clientData, 189 Tcl_Interp *interp, 190 int objc, 191 Tcl_Obj *CONST objv[] 192 ){ 193 #ifndef SQLITE_OMIT_UTF16 194 sqlite3UtfSelfTest(); 195 #endif 196 return SQLITE_OK; 197 } 198 199 200 /* 201 ** Register commands with the TCL interpreter. 202 */ 203 int Sqlitetest5_Init(Tcl_Interp *interp){ 204 static struct { 205 char *zName; 206 Tcl_ObjCmdProc *xProc; 207 } aCmd[] = { 208 { "binarize", (Tcl_ObjCmdProc*)binarize }, 209 { "test_value_overhead", (Tcl_ObjCmdProc*)test_value_overhead }, 210 { "test_translate", (Tcl_ObjCmdProc*)test_translate }, 211 { "translate_selftest", (Tcl_ObjCmdProc*)test_translate_selftest}, 212 }; 213 int i; 214 for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){ 215 Tcl_CreateObjCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0); 216 } 217 return SQLITE_OK; 218 } 219