trunk/fbintf/IBUtils.pas

{************************************************************************}
{                                                                        }
{       Borland Delphi Visual Component Library                          }
{       InterBase Express core components                                }
{                                                                        }
{       Copyright (c) 1998-2000 Inprise Corporation                      }
{                                                                        }
{    InterBase Express is based in part on the product                   }
{    Free IB Components, written by Gregory H. Deatz for                 }
{    Hoagland, Longo, Moran, Dunst & Doukas Company.                     }
{    Free IB Components is used under license.                           }
{                                                                        }
{    The contents of this file are subject to the InterBase              }
{    Public License Version 1.0 (the "License"); you may not             }
{    use this file except in compliance with the License. You            }
{    may obtain a copy of the License at http://www.Inprise.com/IPL.html }
{    Software distributed under the License is distributed on            }
{    an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either              }
{    express or implied. See the License for the specific language       }
{    governing rights and limitations under the License.                 }
{    The Original Code was created by InterBase Software Corporation     }
{       and its successors.                                              }
{    Portions created by Inprise Corporation are Copyright (C) Inprise   }
{       Corporation. All Rights Reserved.                                }
{    Contributor(s): Jeff Overcash                                       }
{                                                                        }
{    IBX For Lazarus (Firebird Express)                                  }
{    Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
{    Portions created by MWA Software are copyright McCallum Whyman      }
{    Associates Ltd 2011                                                 }
{                                                                        }
{************************************************************************}

unit IBUtils;
{$IFDEF MSWINDOWS} 
{$DEFINE WINDOWS} 
{$ENDIF}

{$IFDEF FPC}
{$Mode Delphi}
{$codepage UTF8}
{$ENDIF}

interface

uses Classes, SysUtils;

const
  CRLF = #13 + #10;
  CR   = #13;
  LF   = #10;
  TAB  = #9;
  NULL_TERMINATOR = #0;

  sqlReservedWords: array [0..197] of string = (
  'ADD',
  'ADMIN',
  'ALL',
  'ALTER',
  'AND',
  'ANY',
  'AS',
  'AT',
  'AVG',
  'BEGIN',
  'BETWEEN',
  'BIGINT',
  'BIT_LENGTH',
  'BLOB',
  'BOOLEAN',
  'BOTH',
  'BY',
  'CASE',
  'CAST',
  'CHAR',
  'CHAR_LENGTH',
  'CHARACTER',
  'CHARACTER_LENGTH',
  'CHECK',
  'CLOSE',
  'COLLATE',
  'COLUMN',
  'COMMIT',
  'CONNECT',
  'CONSTRAINT',
  'CORR',
  'COUNT',
  'COVAR_POP',
  'COVAR_SAMP',
  'CREATE',
  'CROSS',
  'CURRENT',
  'CURRENT_CONNECTION',
  'CURRENT_DATE',
  'CURRENT_ROLE',
  'CURRENT_TIME',
  'CURRENT_TIMESTAMP',
  'CURRENT_TRANSACTION',
  'CURRENT_USER',
  'CURSOR',
  'DATE',
  'DAY',
  'DEC',
  'DECIMAL',
  'DECLARE',
  'DEFAULT',
  'DELETE',
  'DELETING',
  'DETERMINISTIC',
  'DISCONNECT',
  'DISTINCT',
  'DOUBLE',
  'DROP',
  'ELSE',
  'END',
  'ESCAPE',
  'EXECUTE',
  'EXISTS',
  'EXTERNAL',
  'EXTRACT',
  'FALSE',
  'FETCH',
  'FILTER',
  'FLOAT',
  'FOR',
  'FOREIGN',
  'FROM',
  'FULL',
  'FUNCTION',
  'GDSCODE',
  'GLOBAL',
  'GRANT',
  'GROUP',
  'HAVING',
  'HOUR',
  'IN',
  'INDEX',
  'INNER',
  'INSENSITIVE',
  'INSERT',
  'INSERTING',
  'INT',
  'INTEGER',
  'INTO',
  'IS',
  'JOIN',
  'LEADING',
  'LEFT',
  'LIKE',
  'LONG',
  'LOWER',
  'MAX',
  'MAXIMUM_SEGMENT',
  'MERGE',
  'MIN',
  'MINUTE',
  'MONTH',
  'NATIONAL',
  'NATURAL',
  'NCHAR',
  'NO',
  'NOT',
  'NULL',
  'NUMERIC',
  'OCTET_LENGTH',
  'OF',
  'OFFSET',
  'ON',
  'ONLY',
  'OPEN',
  'OR',
  'ORDER',
  'OUTER',
  'OVER',
  'PARAMETER',
  'PLAN',
  'POSITION',
  'POST_EVENT',
  'PRECISION',
  'PRIMARY',
  'PROCEDURE',
  'RDB$DB_KEY',
  'RDB$RECORD_VERSION',
  'REAL',
  'RECORD_VERSION',
  'RECREATE',
  'RECURSIVE',
  'REFERENCES',
  'REGR_AVGX',
  'REGR_AVGY',
  'REGR_COUNT',
  'REGR_INTERCEPT',
  'REGR_R2',
  'REGR_SLOPE',
  'REGR_SXX',
  'REGR_SXY',
  'REGR_SYY',
  'RELEASE',
  'RETURN',
  'RETURNING_VALUES',
  'RETURNS',
  'REVOKE',
  'RIGHT',
  'ROLLBACK',
  'ROW',
  'ROW_COUNT',
  'ROWS',
  'SAVEPOINT',
  'SCROLL',
  'SECOND',
  'SELECT',
  'SENSITIVE',
  'SET',
  'SIMILAR',
  'SMALLINT',
  'SOME',
  'SQLCODE',
  'SQLSTATE',
  'SQLSTATE',
  'START',
  'STDDEV_POP',
  'STDDEV_SAMP',
  'SUM',
  'TABLE',
  'THEN',
  'TIME',
  'TIMESTAMP',
  'TO',
  'TRAILING',
  'TRIGGER',
  'TRIM',
  'TRUE',
  'UNION',
  'UNIQUE',
  'UNKNOWN',
  'UPDATE',
  'UPDATING',
  'UPPER',
  'USER',
  'USING',
  'VALUE',
  'VALUES',
  'VAR_POP',
  'VAR_SAMP',
  'VARCHAR',
  'VARIABLE',
  'VARYING',
  'VIEW',
  'WHEN',
  'WHERE',
  'WHILE',
  'WITH',
  'YEAR'
  );

function Max(n1, n2: Integer): Integer;
function Min(n1, n2: Integer): Integer;
function RandomString(iLength: Integer): AnsiString;
function RandomInteger(iLow, iHigh: Integer): Integer;
function StripString(st: AnsiString; CharsToStrip: AnsiString): AnsiString;
function FormatIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
function FormatIdentifierValue(Dialect: Integer; Value: AnsiString): AnsiString;
function FormatIdentifierValueNC(Dialect: Integer; Value: AnsiString): AnsiString;
function ExtractIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
function QuoteIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
function QuoteIdentifierIfNeeded(Dialect: Integer; Value: AnsiString): AnsiString;
function Space2Underscore(s: AnsiString): AnsiString;
function SQLSafeString(const s: AnsiString): AnsiString;
function IsSQLIdentifier(Value: AnsiString): boolean;

implementation

function Max(n1, n2: Integer): Integer;
begin
  if (n1 > n2) then
    result := n1
  else
    result := n2;
end;

function Min(n1, n2: Integer): Integer;
begin
  if (n1 < n2) then
    result := n1
  else
    result := n2;
end;

function RandomString(iLength: Integer): AnsiString;
begin
  result := '';
  while Length(result) < iLength do
    result := result + IntToStr(RandomInteger(0, High(Integer)));
  if Length(result) > iLength then
    result := Copy(result, 1, iLength);
end;

function RandomInteger(iLow, iHigh: Integer): Integer;
begin
  result := Trunc(Random(iHigh - iLow)) + iLow;
end;

function StripString(st: AnsiString; CharsToStrip: AnsiString): AnsiString;
var
  i: Integer;
begin
  result := '';
  for i := 1 to Length(st) do begin
    if AnsiPos(st[i], CharsToStrip) = 0 then
      result := result + st[i];
  end;
end;

function FormatIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
begin
  Value := Trim(Value);
  if Dialect = 1 then
    Value := AnsiUpperCase(Value)
  else
    if (Value <> '') and (Value[1] = '"') then
      Value := '"' + StringReplace (TrimRight(Value), '"', '""', [rfReplaceAll]) + '"'
    else
      Value := AnsiUpperCase(Value);
  Result := Value;
end;

function FormatIdentifierValue(Dialect: Integer; Value: AnsiString): AnsiString;
begin
  Value := Trim(Value);
  if Dialect = 1 then
    Value := AnsiUpperCase(Value)  
  else
  begin
    if (Value <> '') and (Value[1] = '"') then
    begin
      Delete(Value, 1, 1);
      Delete(Value, Length(Value), 1);
      Value := StringReplace (Value, '""', '"', [rfReplaceAll]);
    end
    else
      Value := AnsiUpperCase(Value);
  end;
  Result := Value;
end;

function FormatIdentifierValueNC(Dialect: Integer; Value: AnsiString): AnsiString;
begin
  Value := Trim(Value);
  if Dialect = 1 then
    Value := AnsiUpperCase(Value)
  else
  begin
    if (Value <> '') and (Value[1] = '"') then
    begin
      Delete(Value, 1, 1);
      Delete(Value, Length(Value), 1);
      Value := AnsiUpperCase(StringReplace (Value, '""', '"', [rfReplaceAll]));
    end
    else
      Value := AnsiUpperCase(Value);
  end;
  Result := Value;
end;

function ExtractIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
begin
  Value := Trim(Value);
  if Dialect = 1 then
    Value := AnsiUpperCase(Value)
  else
  begin
    if (Value <> '') and (Value[1] = '"') then
    begin
      Delete(Value, 1, 1);
      Delete(Value, Length(Value), 1);
      Value := StringReplace (Value, '""', '"', [rfReplaceAll]);
    end
    else
      Value := AnsiUpperCase(Value);
  end;
  Result := Value;
end;

function IsReservedWord(w: AnsiString): boolean;
var i: integer;
begin
     Result := true;
     for i := 0 to Length(sqlReservedWords) - 1 do
         if w = sqlReservedWords[i] then
            Exit;
     Result := false;
end;

function QuoteIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
begin
  if Dialect = 1 then
    Value := AnsiUpperCase(Trim(Value))
  else
    Value := '"' + Value + '"';
  Result := Value;
end;

const
  ValidSQLIdentifierChars = ['A'..'Z','a'..'z','0'..'9','_','$'];

function IsSQLIdentifier(Value: AnsiString): boolean;
var i: integer;
begin
  Result := false;
  for i := 1 to Length(Value) do
    if not (Value[i] in ValidSQLIdentifierChars) then Exit;
  Result := true;
end;

function QuoteIdentifierIfNeeded(Dialect: Integer; Value: AnsiString): AnsiString;
begin
  if (Dialect = 3) and
    (IsReservedWord(Value) or not IsSQLIdentifier(Value) or (AnsiUpperCase(Value) <> Value)) then
     Result := '"' + Value + '"'
  else
    Result := Value
end;

function Space2Underscore(s: AnsiString): AnsiString;
var
   k: integer;
begin
     Result := s;
     for k := 1 to Length(s) do
         if not (Result[k] in ['0'..'9','A'..'Z','_','$'])  then
            Result[k] := '_';
end;

function SQLSafeString(const s: AnsiString): AnsiString;
begin
  Result := StringReplace(s,'''','''''',[rfReplaceAll]);
end;

end.
Revision:	115
Committed:	Fri Jan 19 09:23:39 2018 UTC (6 years, 11 months ago) by tony
Content type:	text/x-pascal
File size:	10059 byte(s)
Log Message:	Fix regression on QuoteIdentifierIfNeeded that ignore SQL identifiers containing lowercase characters
#	Content
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	function IsSQLIdentifier(Value: AnsiString): boolean;
270
271	implementation
272
273	function Max(n1, n2: Integer): Integer;
274	begin
275	if (n1 > n2) then
276	result := n1
277	else
278	result := n2;
279	end;
280
281	function Min(n1, n2: Integer): Integer;
282	begin
283	if (n1 < n2) then
284	result := n1
285	else
286	result := n2;
287	end;
288
289	function RandomString(iLength: Integer): AnsiString;
290	begin
291	result := '';
292	while Length(result) < iLength do
293	result := result + IntToStr(RandomInteger(0, High(Integer)));
294	if Length(result) > iLength then
295	result := Copy(result, 1, iLength);
296	end;
297
298	function RandomInteger(iLow, iHigh: Integer): Integer;
299	begin
300	result := Trunc(Random(iHigh - iLow)) + iLow;
301	end;
302
303	function StripString(st: AnsiString; CharsToStrip: AnsiString): AnsiString;
304	var
305	i: Integer;
306	begin
307	result := '';
308	for i := 1 to Length(st) do begin
309	if AnsiPos(st[i], CharsToStrip) = 0 then
310	result := result + st[i];
311	end;
312	end;
313
314	function FormatIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
315	begin
316	Value := Trim(Value);
317	if Dialect = 1 then
318	Value := AnsiUpperCase(Value)
319	else
320	if (Value <> '') and (Value[1] = '"') then
321	Value := '"' + StringReplace (TrimRight(Value), '"', '""', [rfReplaceAll]) + '"'
322	else
323	Value := AnsiUpperCase(Value);
324	Result := Value;
325	end;
326
327	function FormatIdentifierValue(Dialect: Integer; Value: AnsiString): AnsiString;
328	begin
329	Value := Trim(Value);
330	if Dialect = 1 then
331	Value := AnsiUpperCase(Value)
332	else
333	begin
334	if (Value <> '') and (Value[1] = '"') then
335	begin
336	Delete(Value, 1, 1);
337	Delete(Value, Length(Value), 1);
338	Value := StringReplace (Value, '""', '"', [rfReplaceAll]);
339	end
340	else
341	Value := AnsiUpperCase(Value);
342	end;
343	Result := Value;
344	end;
345
346	function FormatIdentifierValueNC(Dialect: Integer; Value: AnsiString): AnsiString;
347	begin
348	Value := Trim(Value);
349	if Dialect = 1 then
350	Value := AnsiUpperCase(Value)
351	else
352	begin
353	if (Value <> '') and (Value[1] = '"') then
354	begin
355	Delete(Value, 1, 1);
356	Delete(Value, Length(Value), 1);
357	Value := AnsiUpperCase(StringReplace (Value, '""', '"', [rfReplaceAll]));
358	end
359	else
360	Value := AnsiUpperCase(Value);
361	end;
362	Result := Value;
363	end;
364
365	function ExtractIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
366	begin
367	Value := Trim(Value);
368	if Dialect = 1 then
369	Value := AnsiUpperCase(Value)
370	else
371	begin
372	if (Value <> '') and (Value[1] = '"') then
373	begin
374	Delete(Value, 1, 1);
375	Delete(Value, Length(Value), 1);
376	Value := StringReplace (Value, '""', '"', [rfReplaceAll]);
377	end
378	else
379	Value := AnsiUpperCase(Value);
380	end;
381	Result := Value;
382	end;
383
384	function IsReservedWord(w: AnsiString): boolean;
385	var i: integer;
386	begin
387	Result := true;
388	for i := 0 to Length(sqlReservedWords) - 1 do
389	if w = sqlReservedWords[i] then
390	Exit;
391	Result := false;
392	end;
393
394	function QuoteIdentifier(Dialect: Integer; Value: AnsiString): AnsiString;
395	begin
396	if Dialect = 1 then
397	Value := AnsiUpperCase(Trim(Value))
398	else
399	Value := '"' + Value + '"';
400	Result := Value;
401	end;
402
403	const
404	ValidSQLIdentifierChars = ['A'..'Z','a'..'z','0'..'9','_','$'];
405
406	function IsSQLIdentifier(Value: AnsiString): boolean;
407	var i: integer;
408	begin
409	Result := false;
410	for i := 1 to Length(Value) do
411	if not (Value[i] in ValidSQLIdentifierChars) then Exit;
412	Result := true;
413	end;
414
415	function QuoteIdentifierIfNeeded(Dialect: Integer; Value: AnsiString): AnsiString;
416	begin
417	if (Dialect = 3) and
418	(IsReservedWord(Value) or not IsSQLIdentifier(Value) or (AnsiUpperCase(Value) <> Value)) then
419	Result := '"' + Value + '"'
420	else
421	Result := Value
422	end;
423
424	function Space2Underscore(s: AnsiString): AnsiString;
425	var
426	k: integer;
427	begin
428	Result := s;
429	for k := 1 to Length(s) do
430	if not (Result[k] in ['0'..'9','A'..'Z','_','$']) then
431	Result[k] := '_';
432	end;
433
434	function SQLSafeString(const s: AnsiString): AnsiString;
435	begin
436	Result := StringReplace(s,'''','''''',[rfReplaceAll]);
437	end;
438
439	end.