| 1 |
{************************************************************************} |
| 2 |
{ } |
| 3 |
{ Borland Delphi Visual Component Library } |
| 4 |
{ InterBase Express core components } |
| 5 |
{ } |
| 6 |
{ Copyright (c) 1998-2000 Inprise Corporation } |
| 7 |
{ } |
| 8 |
{ InterBase Express is based in part on the product } |
| 9 |
{ Free IB Components, written by Gregory H. Deatz for } |
| 10 |
{ Hoagland, Longo, Moran, Dunst & Doukas Company. } |
| 11 |
{ Free IB Components is used under license. } |
| 12 |
{ } |
| 13 |
{ The contents of this file are subject to the InterBase } |
| 14 |
{ Public License Version 1.0 (the "License"); you may not } |
| 15 |
{ use this file except in compliance with the License. You } |
| 16 |
{ may obtain a copy of the License at http://www.Inprise.com/IPL.html } |
| 17 |
{ Software distributed under the License is distributed on } |
| 18 |
{ an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either } |
| 19 |
{ express or implied. See the License for the specific language } |
| 20 |
{ governing rights and limitations under the License. } |
| 21 |
{ The Original Code was created by InterBase Software Corporation } |
| 22 |
{ and its successors. } |
| 23 |
{ Portions created by Inprise Corporation are Copyright (C) Inprise } |
| 24 |
{ Corporation. All Rights Reserved. } |
| 25 |
{ Contributor(s): Jeff Overcash } |
| 26 |
{ } |
| 27 |
{ IBX For Lazarus (Firebird Express) } |
| 28 |
{ Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk } |
| 29 |
{ Portions created by MWA Software are copyright McCallum Whyman } |
| 30 |
{ Associates Ltd 2011 } |
| 31 |
{ } |
| 32 |
{************************************************************************} |
| 33 |
|
| 34 |
unit IBUtils; |
| 35 |
{$IFDEF MSWINDOWS} |
| 36 |
{$DEFINE WINDOWS} |
| 37 |
{$ENDIF} |
| 38 |
|
| 39 |
{$IFDEF FPC} |
| 40 |
{$Mode Delphi} |
| 41 |
{$codepage UTF8} |
| 42 |
{$ENDIF} |
| 43 |
|
| 44 |
interface |
| 45 |
|
| 46 |
uses Classes, SysUtils; |
| 47 |
|
| 48 |
const |
| 49 |
CRLF = #13 + #10; |
| 50 |
CR = #13; |
| 51 |
LF = #10; |
| 52 |
TAB = #9; |
| 53 |
NULL_TERMINATOR = #0; |
| 54 |
|
| 55 |
sqlReservedWords: array [0..197] of string = ( |
| 56 |
'ADD', |
| 57 |
'ADMIN', |
| 58 |
'ALL', |
| 59 |
'ALTER', |
| 60 |
'AND', |
| 61 |
'ANY', |
| 62 |
'AS', |
| 63 |
'AT', |
| 64 |
'AVG', |
| 65 |
'BEGIN', |
| 66 |
'BETWEEN', |
| 67 |
'BIGINT', |
| 68 |
'BIT_LENGTH', |
| 69 |
'BLOB', |
| 70 |
'BOOLEAN', |
| 71 |
'BOTH', |
| 72 |
'BY', |
| 73 |
'CASE', |
| 74 |
'CAST', |
| 75 |
'CHAR', |
| 76 |
'CHAR_LENGTH', |
| 77 |
'CHARACTER', |
| 78 |
'CHARACTER_LENGTH', |
| 79 |
'CHECK', |
| 80 |
'CLOSE', |
| 81 |
'COLLATE', |
| 82 |
'COLUMN', |
| 83 |
'COMMIT', |
| 84 |
'CONNECT', |
| 85 |
'CONSTRAINT', |
| 86 |
'CORR', |
| 87 |
'COUNT', |
| 88 |
'COVAR_POP', |
| 89 |
'COVAR_SAMP', |
| 90 |
'CREATE', |
| 91 |
'CROSS', |
| 92 |
'CURRENT', |
| 93 |
'CURRENT_CONNECTION', |
| 94 |
'CURRENT_DATE', |
| 95 |
'CURRENT_ROLE', |
| 96 |
'CURRENT_TIME', |
| 97 |
'CURRENT_TIMESTAMP', |
| 98 |
'CURRENT_TRANSACTION', |
| 99 |
'CURRENT_USER', |
| 100 |
'CURSOR', |
| 101 |
'DATE', |
| 102 |
'DAY', |
| 103 |
'DEC', |
| 104 |
'DECIMAL', |
| 105 |
'DECLARE', |
| 106 |
'DEFAULT', |
| 107 |
'DELETE', |
| 108 |
'DELETING', |
| 109 |
'DETERMINISTIC', |
| 110 |
'DISCONNECT', |
| 111 |
'DISTINCT', |
| 112 |
'DOUBLE', |
| 113 |
'DROP', |
| 114 |
'ELSE', |
| 115 |
'END', |
| 116 |
'ESCAPE', |
| 117 |
'EXECUTE', |
| 118 |
'EXISTS', |
| 119 |
'EXTERNAL', |
| 120 |
'EXTRACT', |
| 121 |
'FALSE', |
| 122 |
'FETCH', |
| 123 |
'FILTER', |
| 124 |
'FLOAT', |
| 125 |
'FOR', |
| 126 |
'FOREIGN', |
| 127 |
'FROM', |
| 128 |
'FULL', |
| 129 |
'FUNCTION', |
| 130 |
'GDSCODE', |
| 131 |
'GLOBAL', |
| 132 |
'GRANT', |
| 133 |
'GROUP', |
| 134 |
'HAVING', |
| 135 |
'HOUR', |
| 136 |
'IN', |
| 137 |
'INDEX', |
| 138 |
'INNER', |
| 139 |
'INSENSITIVE', |
| 140 |
'INSERT', |
| 141 |
'INSERTING', |
| 142 |
'INT', |
| 143 |
'INTEGER', |
| 144 |
'INTO', |
| 145 |
'IS', |
| 146 |
'JOIN', |
| 147 |
'LEADING', |
| 148 |
'LEFT', |
| 149 |
'LIKE', |
| 150 |
'LONG', |
| 151 |
'LOWER', |
| 152 |
'MAX', |
| 153 |
'MAXIMUM_SEGMENT', |
| 154 |
'MERGE', |
| 155 |
'MIN', |
| 156 |
'MINUTE', |
| 157 |
'MONTH', |
| 158 |
'NATIONAL', |
| 159 |
'NATURAL', |
| 160 |
'NCHAR', |
| 161 |
'NO', |
| 162 |
'NOT', |
| 163 |
'NULL', |
| 164 |
'NUMERIC', |
| 165 |
'OCTET_LENGTH', |
| 166 |
'OF', |
| 167 |
'OFFSET', |
| 168 |
'ON', |
| 169 |
'ONLY', |
| 170 |
'OPEN', |
| 171 |
'OR', |
| 172 |
'ORDER', |
| 173 |
'OUTER', |
| 174 |
'OVER', |
| 175 |
'PARAMETER', |
| 176 |
'PLAN', |
| 177 |
'POSITION', |
| 178 |
'POST_EVENT', |
| 179 |
'PRECISION', |
| 180 |
'PRIMARY', |
| 181 |
'PROCEDURE', |
| 182 |
'RDB$DB_KEY', |
| 183 |
'RDB$RECORD_VERSION', |
| 184 |
'REAL', |
| 185 |
'RECORD_VERSION', |
| 186 |
'RECREATE', |
| 187 |
'RECURSIVE', |
| 188 |
'REFERENCES', |
| 189 |
'REGR_AVGX', |
| 190 |
'REGR_AVGY', |
| 191 |
'REGR_COUNT', |
| 192 |
'REGR_INTERCEPT', |
| 193 |
'REGR_R2', |
| 194 |
'REGR_SLOPE', |
| 195 |
'REGR_SXX', |
| 196 |
'REGR_SXY', |
| 197 |
'REGR_SYY', |
| 198 |
'RELEASE', |
| 199 |
'RETURN', |
| 200 |
'RETURNING_VALUES', |
| 201 |
'RETURNS', |
| 202 |
'REVOKE', |
| 203 |
'RIGHT', |
| 204 |
'ROLLBACK', |
| 205 |
'ROW', |
| 206 |
'ROW_COUNT', |
| 207 |
'ROWS', |
| 208 |
'SAVEPOINT', |
| 209 |
'SCROLL', |
| 210 |
'SECOND', |
| 211 |
'SELECT', |
| 212 |
'SENSITIVE', |
| 213 |
'SET', |
| 214 |
'SIMILAR', |
| 215 |
'SMALLINT', |
| 216 |
'SOME', |
| 217 |
'SQLCODE', |
| 218 |
'SQLSTATE', |
| 219 |
'SQLSTATE', |
| 220 |
'START', |
| 221 |
'STDDEV_POP', |
| 222 |
'STDDEV_SAMP', |
| 223 |
'SUM', |
| 224 |
'TABLE', |
| 225 |
'THEN', |
| 226 |
'TIME', |
| 227 |
'TIMESTAMP', |
| 228 |
'TO', |
| 229 |
'TRAILING', |
| 230 |
'TRIGGER', |
| 231 |
'TRIM', |
| 232 |
'TRUE', |
| 233 |
'UNION', |
| 234 |
'UNIQUE', |
| 235 |
'UNKNOWN', |
| 236 |
'UPDATE', |
| 237 |
'UPDATING', |
| 238 |
'UPPER', |
| 239 |
'USER', |
| 240 |
'USING', |
| 241 |
'VALUE', |
| 242 |
'VALUES', |
| 243 |
'VAR_POP', |
| 244 |
'VAR_SAMP', |
| 245 |
'VARCHAR', |
| 246 |
'VARIABLE', |
| 247 |
'VARYING', |
| 248 |
'VIEW', |
| 249 |
'WHEN', |
| 250 |
'WHERE', |
| 251 |
'WHILE', |
| 252 |
'WITH', |
| 253 |
'YEAR' |
| 254 |
); |
| 255 |
|
| 256 |
function Max(n1, n2: Integer): Integer; |
| 257 |
function Min(n1, n2: Integer): Integer; |
| 258 |
function RandomString(iLength: Integer): AnsiString; |
| 259 |
function RandomInteger(iLow, iHigh: Integer): Integer; |
| 260 |
function StripString(st: AnsiString; CharsToStrip: AnsiString): AnsiString; |
| 261 |
function FormatIdentifier(Dialect: Integer; Value: AnsiString): AnsiString; |
| 262 |
function FormatIdentifierValue(Dialect: Integer; Value: AnsiString): AnsiString; |
| 263 |
function FormatIdentifierValueNC(Dialect: Integer; Value: AnsiString): AnsiString; |
| 264 |
function ExtractIdentifier(Dialect: Integer; Value: AnsiString): AnsiString; |
| 265 |
function QuoteIdentifier(Dialect: Integer; Value: AnsiString): AnsiString; |
| 266 |
function QuoteIdentifierIfNeeded(Dialect: Integer; Value: AnsiString): AnsiString; |
| 267 |
function Space2Underscore(s: AnsiString): AnsiString; |
| 268 |
function SQLSafeString(const s: AnsiString): AnsiString; |
| 269 |
|
| 270 |
implementation |
| 271 |
|
| 272 |
function Max(n1, n2: Integer): Integer; |
| 273 |
begin |
| 274 |
if (n1 > n2) then |
| 275 |
result := n1 |
| 276 |
else |
| 277 |
result := n2; |
| 278 |
end; |
| 279 |
|
| 280 |
function Min(n1, n2: Integer): Integer; |
| 281 |
begin |
| 282 |
if (n1 < n2) then |
| 283 |
result := n1 |
| 284 |
else |
| 285 |
result := n2; |
| 286 |
end; |
| 287 |
|
| 288 |
function RandomString(iLength: Integer): AnsiString; |
| 289 |
begin |
| 290 |
result := ''; |
| 291 |
while Length(result) < iLength do |
| 292 |
result := result + IntToStr(RandomInteger(0, High(Integer))); |
| 293 |
if Length(result) > iLength then |
| 294 |
result := Copy(result, 1, iLength); |
| 295 |
end; |
| 296 |
|
| 297 |
function RandomInteger(iLow, iHigh: Integer): Integer; |
| 298 |
begin |
| 299 |
result := Trunc(Random(iHigh - iLow)) + iLow; |
| 300 |
end; |
| 301 |
|
| 302 |
function StripString(st: AnsiString; CharsToStrip: AnsiString): AnsiString; |
| 303 |
var |
| 304 |
i: Integer; |
| 305 |
begin |
| 306 |
result := ''; |
| 307 |
for i := 1 to Length(st) do begin |
| 308 |
if AnsiPos(st[i], CharsToStrip) = 0 then |
| 309 |
result := result + st[i]; |
| 310 |
end; |
| 311 |
end; |
| 312 |
|
| 313 |
function FormatIdentifier(Dialect: Integer; Value: AnsiString): AnsiString; |
| 314 |
begin |
| 315 |
Value := Trim(Value); |
| 316 |
if Dialect = 1 then |
| 317 |
Value := AnsiUpperCase(Value) |
| 318 |
else |
| 319 |
if (Value <> '') and (Value[1] = '"') then |
| 320 |
Value := '"' + StringReplace (TrimRight(Value), '"', '""', [rfReplaceAll]) + '"' |
| 321 |
else |
| 322 |
Value := AnsiUpperCase(Value); |
| 323 |
Result := Value; |
| 324 |
end; |
| 325 |
|
| 326 |
function FormatIdentifierValue(Dialect: Integer; Value: AnsiString): AnsiString; |
| 327 |
begin |
| 328 |
Value := Trim(Value); |
| 329 |
if Dialect = 1 then |
| 330 |
Value := AnsiUpperCase(Value) |
| 331 |
else |
| 332 |
begin |
| 333 |
if (Value <> '') and (Value[1] = '"') then |
| 334 |
begin |
| 335 |
Delete(Value, 1, 1); |
| 336 |
Delete(Value, Length(Value), 1); |
| 337 |
Value := StringReplace (Value, '""', '"', [rfReplaceAll]); |
| 338 |
end |
| 339 |
else |
| 340 |
Value := AnsiUpperCase(Value); |
| 341 |
end; |
| 342 |
Result := Value; |
| 343 |
end; |
| 344 |
|
| 345 |
function FormatIdentifierValueNC(Dialect: Integer; Value: AnsiString): AnsiString; |
| 346 |
begin |
| 347 |
Value := Trim(Value); |
| 348 |
if Dialect = 1 then |
| 349 |
Value := AnsiUpperCase(Value) |
| 350 |
else |
| 351 |
begin |
| 352 |
if (Value <> '') and (Value[1] = '"') then |
| 353 |
begin |
| 354 |
Delete(Value, 1, 1); |
| 355 |
Delete(Value, Length(Value), 1); |
| 356 |
Value := AnsiUpperCase(StringReplace (Value, '""', '"', [rfReplaceAll])); |
| 357 |
end |
| 358 |
else |
| 359 |
Value := AnsiUpperCase(Value); |
| 360 |
end; |
| 361 |
Result := Value; |
| 362 |
end; |
| 363 |
|
| 364 |
function ExtractIdentifier(Dialect: Integer; Value: AnsiString): AnsiString; |
| 365 |
begin |
| 366 |
Value := Trim(Value); |
| 367 |
if Dialect = 1 then |
| 368 |
Value := AnsiUpperCase(Value) |
| 369 |
else |
| 370 |
begin |
| 371 |
if (Value <> '') and (Value[1] = '"') then |
| 372 |
begin |
| 373 |
Delete(Value, 1, 1); |
| 374 |
Delete(Value, Length(Value), 1); |
| 375 |
Value := StringReplace (Value, '""', '"', [rfReplaceAll]); |
| 376 |
end |
| 377 |
else |
| 378 |
Value := AnsiUpperCase(Value); |
| 379 |
end; |
| 380 |
Result := Value; |
| 381 |
end; |
| 382 |
|
| 383 |
function IsReservedWord(w: AnsiString): boolean; |
| 384 |
var i: integer; |
| 385 |
begin |
| 386 |
Result := true; |
| 387 |
for i := 0 to Length(sqlReservedWords) - 1 do |
| 388 |
if w = sqlReservedWords[i] then |
| 389 |
Exit; |
| 390 |
Result := false; |
| 391 |
end; |
| 392 |
|
| 393 |
function QuoteIdentifier(Dialect: Integer; Value: AnsiString): AnsiString; |
| 394 |
begin |
| 395 |
if Dialect = 1 then |
| 396 |
Value := AnsiUpperCase(Trim(Value)) |
| 397 |
else |
| 398 |
Value := '"' + Value + '"'; |
| 399 |
Result := Value; |
| 400 |
end; |
| 401 |
|
| 402 |
function QuoteIdentifierIfNeeded(Dialect: Integer; Value: AnsiString): AnsiString; |
| 403 |
begin |
| 404 |
if (Dialect = 3) and |
| 405 |
((AnsiUpperCase(Value) <> Value) or IsReservedWord(Value)) then |
| 406 |
Result := '"' + Value + '"' |
| 407 |
else |
| 408 |
Result := Value |
| 409 |
end; |
| 410 |
|
| 411 |
function Space2Underscore(s: AnsiString): AnsiString; |
| 412 |
var |
| 413 |
k: integer; |
| 414 |
begin |
| 415 |
Result := s; |
| 416 |
for k := 1 to Length(s) do |
| 417 |
if not (Result[k] in ['0'..'9','A'..'Z','_','$']) then |
| 418 |
Result[k] := '_'; |
| 419 |
end; |
| 420 |
|
| 421 |
function SQLSafeString(const s: AnsiString): AnsiString; |
| 422 |
begin |
| 423 |
Result := StringReplace(s,'''','''''',[rfReplaceAll]); |
| 424 |
end; |
| 425 |
|
| 426 |
end. |
