47 |
|
|
48 |
|
uses Classes, SysUtils, IB; |
49 |
|
|
50 |
+ |
type |
51 |
+ |
TSQLTokens = ( |
52 |
+ |
|
53 |
+ |
{Reserved Words} |
54 |
+ |
|
55 |
+ |
sqltAdd, |
56 |
+ |
sqltAdmin, |
57 |
+ |
sqltAll, |
58 |
+ |
sqltAlter, |
59 |
+ |
sqltAnd, |
60 |
+ |
sqltAny, |
61 |
+ |
sqltAs, |
62 |
+ |
sqltAt, |
63 |
+ |
sqltAvg, |
64 |
+ |
sqltBegin, |
65 |
+ |
sqltBetween, |
66 |
+ |
sqltBigint, |
67 |
+ |
sqltBit_Length, |
68 |
+ |
sqltBlob, |
69 |
+ |
sqltBoolean, |
70 |
+ |
sqltBoth, |
71 |
+ |
sqltBy, |
72 |
+ |
sqltCase, |
73 |
+ |
sqltCast, |
74 |
+ |
sqltChar, |
75 |
+ |
sqltChar_Length, |
76 |
+ |
sqltCharacter, |
77 |
+ |
sqltCharacter_Length, |
78 |
+ |
sqltCheck, |
79 |
+ |
sqltClose, |
80 |
+ |
sqltCollate, |
81 |
+ |
sqltColumn, |
82 |
+ |
sqltCommit, |
83 |
+ |
sqltConnect, |
84 |
+ |
sqltConstraint, |
85 |
+ |
sqltCorr, |
86 |
+ |
sqltCount, |
87 |
+ |
sqltCovar_Pop, |
88 |
+ |
sqltCovar_Samp, |
89 |
+ |
sqltCreate, |
90 |
+ |
sqltCross, |
91 |
+ |
sqltCurrent, |
92 |
+ |
sqltCurrent_Connection, |
93 |
+ |
sqltCurrent_Date, |
94 |
+ |
sqltCurrent_Role, |
95 |
+ |
sqltCurrent_Time, |
96 |
+ |
sqltCurrent_Timestamp, |
97 |
+ |
sqltCurrent_Transaction, |
98 |
+ |
sqltCurrent_User, |
99 |
+ |
sqltCursor, |
100 |
+ |
sqltDate, |
101 |
+ |
sqltDay, |
102 |
+ |
sqltDec, |
103 |
+ |
sqltDecimal, |
104 |
+ |
sqltDeclare, |
105 |
+ |
sqltDefault, |
106 |
+ |
sqltDelete, |
107 |
+ |
sqltDeleting, |
108 |
+ |
sqltDeterministic, |
109 |
+ |
sqltDisconnect, |
110 |
+ |
sqltDistinct, |
111 |
+ |
sqltDouble, |
112 |
+ |
sqltDrop, |
113 |
+ |
sqltElse, |
114 |
+ |
sqltEnd, |
115 |
+ |
sqltEscape, |
116 |
+ |
sqltExecute, |
117 |
+ |
sqltExists, |
118 |
+ |
sqltExternal, |
119 |
+ |
sqltExtract, |
120 |
+ |
sqltFalse, |
121 |
+ |
sqltFetch, |
122 |
+ |
sqltFilter, |
123 |
+ |
sqltFloat, |
124 |
+ |
sqltFor, |
125 |
+ |
sqltForeign, |
126 |
+ |
sqltFrom, |
127 |
+ |
sqltFull, |
128 |
+ |
sqltFunction, |
129 |
+ |
sqltGdscode, |
130 |
+ |
sqltGlobal, |
131 |
+ |
sqltGrant, |
132 |
+ |
sqltGroup, |
133 |
+ |
sqltHaving, |
134 |
+ |
sqltHour, |
135 |
+ |
sqltIn, |
136 |
+ |
sqltIndex, |
137 |
+ |
sqltInner, |
138 |
+ |
sqltInsensitive, |
139 |
+ |
sqltInsert, |
140 |
+ |
sqltInserting, |
141 |
+ |
sqltInt, |
142 |
+ |
sqltInteger, |
143 |
+ |
sqltInto, |
144 |
+ |
sqltIs, |
145 |
+ |
sqltJoin, |
146 |
+ |
sqltKey, |
147 |
+ |
sqltLeading, |
148 |
+ |
sqltLeft, |
149 |
+ |
sqltLike, |
150 |
+ |
sqltLong, |
151 |
+ |
sqltLower, |
152 |
+ |
sqltMax, |
153 |
+ |
sqltMaximum_Segment, |
154 |
+ |
sqltMerge, |
155 |
+ |
sqltMin, |
156 |
+ |
sqltMinute, |
157 |
+ |
sqltMonth, |
158 |
+ |
sqltNational, |
159 |
+ |
sqltNatural, |
160 |
+ |
sqltNchar, |
161 |
+ |
sqltNo, |
162 |
+ |
sqltNot, |
163 |
+ |
sqltNull, |
164 |
+ |
sqltNumeric, |
165 |
+ |
sqltOctet_Length, |
166 |
+ |
sqltOf, |
167 |
+ |
sqltOffset, |
168 |
+ |
sqltOn, |
169 |
+ |
sqltOnly, |
170 |
+ |
sqltOpen, |
171 |
+ |
sqltOr, |
172 |
+ |
sqltOrder, |
173 |
+ |
sqltOuter, |
174 |
+ |
sqltOver, |
175 |
+ |
sqltParameter, |
176 |
+ |
sqltPlan, |
177 |
+ |
sqltPosition, |
178 |
+ |
sqltPost_Event, |
179 |
+ |
sqltPrecision, |
180 |
+ |
sqltPrimary, |
181 |
+ |
sqltProcedure, |
182 |
+ |
sqltRdbDb_Key, |
183 |
+ |
sqltRdbRecord_Version, |
184 |
+ |
sqltReal, |
185 |
+ |
sqltRecord_Version, |
186 |
+ |
sqltRecreate, |
187 |
+ |
sqltRecursive, |
188 |
+ |
sqltReferences, |
189 |
+ |
sqltRegr_Avgx, |
190 |
+ |
sqltRegr_Avgy, |
191 |
+ |
sqltRegr_Count, |
192 |
+ |
sqltRegr_Intercept, |
193 |
+ |
sqltRegr_R2, |
194 |
+ |
sqltRegr_Slope, |
195 |
+ |
sqltRegr_Sxx, |
196 |
+ |
sqltRegr_Sxy, |
197 |
+ |
sqltRegr_Syy, |
198 |
+ |
sqltRelease, |
199 |
+ |
sqltReturn, |
200 |
+ |
sqltReturning_Values, |
201 |
+ |
sqltReturns, |
202 |
+ |
sqltRevoke, |
203 |
+ |
sqltRight, |
204 |
+ |
sqltRollback, |
205 |
+ |
sqltRow, |
206 |
+ |
sqltRows, |
207 |
+ |
sqltRow_Count, |
208 |
+ |
sqltSavepoint, |
209 |
+ |
sqltScroll, |
210 |
+ |
sqltSecond, |
211 |
+ |
sqltSelect, |
212 |
+ |
sqltSensitive, |
213 |
+ |
sqltSet, |
214 |
+ |
sqltSimilar, |
215 |
+ |
sqltSmallint, |
216 |
+ |
sqltSome, |
217 |
+ |
sqltSqlcode, |
218 |
+ |
sqltSqlstate, |
219 |
+ |
sqltStart, |
220 |
+ |
sqltStddev_Pop, |
221 |
+ |
sqltStddev_Samp, |
222 |
+ |
sqltSum, |
223 |
+ |
sqltTable, |
224 |
+ |
sqltThen, |
225 |
+ |
sqltTime, |
226 |
+ |
sqltTimestamp, |
227 |
+ |
sqltTo, |
228 |
+ |
sqltTrailing, |
229 |
+ |
sqltTrigger, |
230 |
+ |
sqltTrim, |
231 |
+ |
sqltTrue, |
232 |
+ |
sqltUnion, |
233 |
+ |
sqltUnique, |
234 |
+ |
sqltUnknown, |
235 |
+ |
sqltUpdate, |
236 |
+ |
sqltUpdating, |
237 |
+ |
sqltUpper, |
238 |
+ |
sqltUser, |
239 |
+ |
sqltUsing, |
240 |
+ |
sqltValue, |
241 |
+ |
sqltValues, |
242 |
+ |
sqltVar_Pop, |
243 |
+ |
sqltVar_Samp, |
244 |
+ |
sqltVarchar, |
245 |
+ |
sqltVariable, |
246 |
+ |
sqltVarying, |
247 |
+ |
sqltView, |
248 |
+ |
sqltWhen, |
249 |
+ |
sqltWhere, |
250 |
+ |
sqltWhile, |
251 |
+ |
sqltWith, |
252 |
+ |
sqltYear, |
253 |
+ |
|
254 |
+ |
{symbols} |
255 |
+ |
|
256 |
+ |
sqltSpace, |
257 |
+ |
sqltSemiColon, |
258 |
+ |
sqltPlaceholder, |
259 |
+ |
sqltSingleQuotes, |
260 |
+ |
sqltDoubleQuotes, |
261 |
+ |
sqltComma, |
262 |
+ |
sqltPeriod, |
263 |
+ |
sqltEquals, |
264 |
+ |
sqltOtherCharacter, |
265 |
+ |
sqltIdentifier, |
266 |
+ |
sqltIdentifierInDoubleQuotes, |
267 |
+ |
sqltNumberString, |
268 |
+ |
sqltString, |
269 |
+ |
sqltParam, |
270 |
+ |
sqltQuotedParam, |
271 |
+ |
sqltColon, |
272 |
+ |
sqltComment, |
273 |
+ |
sqltCommentLine, |
274 |
+ |
sqltQuotedString, |
275 |
+ |
sqltAsterisk, |
276 |
+ |
sqltForwardSlash, |
277 |
+ |
sqltOpenSquareBracket, |
278 |
+ |
sqltCloseSquareBracket, |
279 |
+ |
sqltOpenBracket, |
280 |
+ |
sqltCloseBracket, |
281 |
+ |
sqltPipe, |
282 |
+ |
sqltConcatSymbol, |
283 |
+ |
sqltLT, |
284 |
+ |
sqltGT, |
285 |
+ |
sqltCR, |
286 |
+ |
sqltEOL, |
287 |
+ |
sqltEOF, |
288 |
+ |
sqltInit |
289 |
+ |
); |
290 |
+ |
|
291 |
+ |
TSQLReservedWords = sqltAdd..sqltYear; |
292 |
+ |
|
293 |
|
const |
294 |
|
CRLF = #13 + #10; |
295 |
|
CR = #13; |
297 |
|
TAB = #9; |
298 |
|
NULL_TERMINATOR = #0; |
299 |
|
|
300 |
< |
sqlReservedWords: array [0..197] of string = ( |
300 |
> |
{$IFNDEF FPC} |
301 |
> |
LineEnding = CRLF; |
302 |
> |
{$ENDIF} |
303 |
> |
|
304 |
> |
{SQL Reserved words in alphabetical order} |
305 |
> |
|
306 |
> |
sqlReservedWords: array [TSQLReservedWords] of string = ( |
307 |
|
'ADD', |
308 |
|
'ADMIN', |
309 |
|
'ALL', |
395 |
|
'INTO', |
396 |
|
'IS', |
397 |
|
'JOIN', |
398 |
+ |
'KEY', |
399 |
|
'LEADING', |
400 |
|
'LEFT', |
401 |
|
'LIKE', |
455 |
|
'RIGHT', |
456 |
|
'ROLLBACK', |
457 |
|
'ROW', |
208 |
– |
'ROW_COUNT', |
458 |
|
'ROWS', |
459 |
+ |
'ROW_COUNT', |
460 |
|
'SAVEPOINT', |
461 |
|
'SCROLL', |
462 |
|
'SECOND', |
468 |
|
'SOME', |
469 |
|
'SQLCODE', |
470 |
|
'SQLSTATE', |
221 |
– |
'SQLSTATE', |
471 |
|
'START', |
472 |
|
'STDDEV_POP', |
473 |
|
'STDDEV_SAMP', |
504 |
|
'YEAR' |
505 |
|
); |
506 |
|
|
507 |
+ |
type |
508 |
+ |
{The TSQLTokeniser class provides a common means to parse an SQL statement, or |
509 |
+ |
even a stream of SQL Statements. The TSQLStringTokeniser class is instantiated |
510 |
+ |
with a single SQL statement or a set of concatenated statements. The TSQLStreamTokeniser |
511 |
+ |
is instantiated with a stream from which the SQL statements are read. |
512 |
+ |
|
513 |
+ |
Successive calls to GetNextToken then return each SQL token. The TokenText contains |
514 |
+ |
either the single character, the identifier or reserved word, the string or comment.} |
515 |
+ |
|
516 |
+ |
{ TSQLTokeniser } |
517 |
+ |
|
518 |
+ |
TSQLTokeniser = class |
519 |
+ |
private |
520 |
+ |
const |
521 |
+ |
TokenQueueMaxSize = 64; |
522 |
+ |
type |
523 |
+ |
TLexState = (stDefault, stInCommentLine, stInComment, stSingleQuoted, stDoubleQuoted, |
524 |
+ |
stInIdentifier, stInNumeric); |
525 |
+ |
|
526 |
+ |
TTokenQueueItem = record |
527 |
+ |
token: TSQLTokens; |
528 |
+ |
text: AnsiString; |
529 |
+ |
end; |
530 |
+ |
TTokenQueueState = (tsHold, tsRelease); |
531 |
+ |
|
532 |
+ |
private |
533 |
+ |
FLastChar: AnsiChar; |
534 |
+ |
FState: TLexState; |
535 |
+ |
FSkipNext: boolean; |
536 |
+ |
function GetNext: TSQLTokens; |
537 |
+ |
|
538 |
+ |
{The token Queue is available for use by descendents so that they can |
539 |
+ |
hold back tokens in order to lookahead by token rather than just a single |
540 |
+ |
character} |
541 |
+ |
|
542 |
+ |
private |
543 |
+ |
FTokenQueue: array[0..TokenQueueMaxSize] of TTokenQueueItem; |
544 |
+ |
FQueueState: TTokenQueueState; |
545 |
+ |
FQFirst: integer; {first and last pointers first=last => queue empty} |
546 |
+ |
FQLast: integer; |
547 |
+ |
FEOF: boolean; |
548 |
+ |
procedure PopQueue(var token: TSQLTokens); |
549 |
+ |
protected |
550 |
+ |
FString: AnsiString; |
551 |
+ |
FNextToken: TSQLTokens; |
552 |
+ |
procedure Assign(source: TSQLTokeniser); virtual; |
553 |
+ |
function GetChar: AnsiChar; virtual; abstract; |
554 |
+ |
function TokenFound(var token: TSQLTokens): boolean; virtual; |
555 |
+ |
function InternalGetNextToken: TSQLTokens; virtual; |
556 |
+ |
procedure Reset; virtual; |
557 |
+ |
|
558 |
+ |
{Token stack} |
559 |
+ |
procedure QueueToken(token: TSQLTokens; text:AnsiString); overload; |
560 |
+ |
procedure QueueToken(token: TSQLTokens); overload; |
561 |
+ |
procedure ResetQueue; overload; |
562 |
+ |
procedure ResetQueue(token: TSQLTokens; text:AnsiString); overload; |
563 |
+ |
procedure ResetQueue(token: TSQLTokens); overload; |
564 |
+ |
procedure ReleaseQueue(var token: TSQLTokens); overload; |
565 |
+ |
procedure ReleaseQueue; overload; |
566 |
+ |
function GetQueuedText: AnsiString; |
567 |
+ |
procedure SetTokenText(text: AnsiString); |
568 |
+ |
|
569 |
+ |
public |
570 |
+ |
const |
571 |
+ |
DefaultTerminator = ';'; |
572 |
+ |
public |
573 |
+ |
constructor Create; |
574 |
+ |
destructor Destroy; override; |
575 |
+ |
function GetNextToken: TSQLTokens; |
576 |
+ |
property EOF: boolean read FEOF; |
577 |
+ |
property TokenText: AnsiString read FString; |
578 |
+ |
end; |
579 |
+ |
|
580 |
+ |
{ TSQLwithNamedParamsTokeniser } |
581 |
+ |
|
582 |
+ |
TSQLwithNamedParamsTokeniser = class(TSQLTokeniser) |
583 |
+ |
private |
584 |
+ |
type |
585 |
+ |
TSQLState = (stInit,stInParam,stInBlock, stInArrayDim); |
586 |
+ |
private |
587 |
+ |
FState: TSQLState; |
588 |
+ |
FNested: integer; |
589 |
+ |
protected |
590 |
+ |
procedure Assign(source: TSQLTokeniser); override; |
591 |
+ |
procedure Reset; override; |
592 |
+ |
function TokenFound(var token: TSQLTokens): boolean; override; |
593 |
+ |
end; |
594 |
+ |
|
595 |
|
function Max(n1, n2: Integer): Integer; |
596 |
|
function Min(n1, n2: Integer): Integer; |
597 |
|
function RandomString(iLength: Integer): AnsiString; |
598 |
|
function RandomInteger(iLow, iHigh: Integer): Integer; |
599 |
|
function StripString(st: AnsiString; CharsToStrip: AnsiString): AnsiString; |
600 |
|
function ExtractIdentifier(Dialect: Integer; Value: AnsiString): AnsiString; |
601 |
+ |
function FindReservedWord(w: AnsiString; var token: TSQLTokens): boolean; |
602 |
+ |
function IsReservedWord(w: AnsiString): boolean; |
603 |
|
function QuoteIdentifier(Dialect: Integer; Value: AnsiString): AnsiString; |
604 |
|
function QuoteIdentifierIfNeeded(Dialect: Integer; Value: AnsiString): AnsiString; |
605 |
|
function Space2Underscore(s: AnsiString): AnsiString; |
615 |
|
|
616 |
|
implementation |
617 |
|
|
618 |
+ |
uses FBMessages |
619 |
+ |
|
620 |
|
{$IFDEF HASREQEX} |
621 |
< |
uses RegExpr; |
622 |
< |
{$ENDIF} |
621 |
> |
,RegExpr |
622 |
> |
{$ENDIF}; |
623 |
|
|
624 |
|
function Max(n1, n2: Integer): Integer; |
625 |
|
begin |
683 |
|
Result := Value; |
684 |
|
end; |
685 |
|
|
686 |
+ |
{Returns true if "w" is a Firebird SQL reserved word, and the |
687 |
+ |
corresponding TSQLTokens value.} |
688 |
+ |
|
689 |
+ |
function FindReservedWord(w: AnsiString; var token: TSQLTokens): boolean; |
690 |
+ |
var i: TSQLTokens; |
691 |
+ |
begin |
692 |
+ |
Result := true; |
693 |
+ |
w := AnsiUpperCase(Trim(w)); |
694 |
+ |
for i := Low(TSQLReservedWords) to High(TSQLReservedWords) do |
695 |
+ |
begin |
696 |
+ |
if w = sqlReservedWords[i] then |
697 |
+ |
begin |
698 |
+ |
token := i; |
699 |
+ |
Exit; |
700 |
+ |
end; |
701 |
+ |
if w < sqlReservedWords[i] then |
702 |
+ |
break; |
703 |
+ |
end; |
704 |
+ |
Result := false; |
705 |
+ |
end; |
706 |
+ |
|
707 |
|
{Returns true if "w" is a Firebird SQL reserved word} |
708 |
|
|
709 |
|
function IsReservedWord(w: AnsiString): boolean; |
710 |
< |
var i: integer; |
710 |
> |
var token: TSQLTokens; |
711 |
|
begin |
712 |
< |
Result := true; |
351 |
< |
for i := 0 to Length(sqlReservedWords) - 1 do |
352 |
< |
if w = sqlReservedWords[i] then |
353 |
< |
Exit; |
354 |
< |
Result := false; |
712 |
> |
Result := FindReservedWord(w,token); |
713 |
|
end; |
714 |
|
|
715 |
|
{Format an SQL Identifier according to SQL Dialect} |
761 |
|
function ParseConnectString(ConnectString: AnsiString; var ServerName, |
762 |
|
DatabaseName: AnsiString; var Protocol: TProtocolAll; var PortNo: AnsiString |
763 |
|
): boolean; |
764 |
+ |
|
765 |
+ |
function GetProtocol(scheme: AnsiString): TProtocolAll; |
766 |
+ |
begin |
767 |
+ |
scheme := AnsiUpperCase(scheme); |
768 |
+ |
if scheme = 'INET' then |
769 |
+ |
Result := inet |
770 |
+ |
else |
771 |
+ |
if scheme = 'INET4' then |
772 |
+ |
Result := inet4 |
773 |
+ |
else |
774 |
+ |
if scheme = 'INET6' then |
775 |
+ |
Result := inet6 |
776 |
+ |
else |
777 |
+ |
if scheme = 'XNET' then |
778 |
+ |
Result := xnet |
779 |
+ |
else |
780 |
+ |
if scheme = 'WNET' then |
781 |
+ |
Result := wnet |
782 |
+ |
end; |
783 |
+ |
|
784 |
|
var RegexObj: TRegExpr; |
407 |
– |
scheme: AnsiString; |
785 |
|
begin |
786 |
|
ServerName := ''; |
787 |
|
DatabaseName := ConnectString; |
791 |
|
try |
792 |
|
{extact database file spec} |
793 |
|
RegexObj.ModifierG := false; {turn off greedy matches} |
794 |
< |
RegexObj.Expression := '^([a-zA-Z]+)://([a-zA-Z0-9\-\.]+)(|:[0-9a-zA-Z\-]+)/(.*)$'; |
794 |
> |
RegexObj.Expression := '^([a-zA-Z46]+)://([a-zA-Z0-9\-\.]*)(|:[0-9a-zA-Z\-]+)/(.*)$'; |
795 |
|
Result := RegexObj.Exec(ConnectString); |
796 |
|
if Result then |
797 |
|
begin |
798 |
|
{URL type connect string} |
799 |
< |
scheme := AnsiUpperCase(RegexObj.Match[1]); |
799 |
> |
Protocol := GetProtocol(RegexObj.Match[1]); |
800 |
|
ServerName := RegexObj.Match[2]; |
801 |
|
if RegexObj.MatchLen[3] > 0 then |
802 |
|
PortNo := system.Copy(ConnectString,RegexObj.MatchPos[3]+1,RegexObj.MatchLen[3]-1); |
803 |
|
DatabaseName := RegexObj.Match[4]; |
804 |
< |
if scheme = 'INET' then |
805 |
< |
Protocol := inet |
429 |
< |
else |
430 |
< |
if scheme = 'XNET' then |
431 |
< |
Protocol := xnet |
432 |
< |
else |
433 |
< |
if scheme = 'WNET' then |
434 |
< |
Protocol := wnet |
804 |
> |
if ServerName = '' then |
805 |
> |
DatabaseName := '/' + DatabaseName; |
806 |
|
end |
807 |
|
else |
808 |
|
begin |
809 |
< |
RegexObj.Expression := '^([a-zA-Z]:\\.*)'; |
809 |
> |
{URL type connect string - local loop} |
810 |
> |
RegexObj.Expression := '^([a-zA-Z46]+)://(.*)$'; |
811 |
|
Result := RegexObj.Exec(ConnectString); |
812 |
|
if Result then |
813 |
< |
Protocol := Local {Windows with leading drive ID} |
813 |
> |
begin |
814 |
> |
Protocol := GetProtocol(RegexObj.Match[1]); |
815 |
> |
DatabaseName := RegexObj.Match[2]; |
816 |
> |
end |
817 |
|
else |
818 |
|
begin |
819 |
< |
RegexObj.Expression := '^([a-zA-Z0-9\-\.]+)(|/[0-9a-zA-Z\-]+):(.*)$'; |
819 |
> |
RegexObj.Expression := '^([a-zA-Z]:\\.*)'; |
820 |
|
Result := RegexObj.Exec(ConnectString); |
821 |
|
if Result then |
822 |
< |
begin |
448 |
< |
{Legacy TCP Format} |
449 |
< |
ServerName := RegexObj.Match[1]; |
450 |
< |
if RegexObj.MatchLen[2] > 0 then |
451 |
< |
PortNo := system.Copy(ConnectString,RegexObj.MatchPos[2]+1,RegexObj.MatchLen[2]-1); |
452 |
< |
DatabaseName := RegexObj.Match[3]; |
453 |
< |
Protocol := TCP; |
454 |
< |
end |
822 |
> |
Protocol := Local {Windows with leading drive ID} |
823 |
|
else |
824 |
|
begin |
825 |
< |
RegexObj.Expression := '^\\\\([a-zA-Z0-9\-\.]+)(|@[0-9a-zA-Z\-]+)\\(.*)$'; |
825 |
> |
RegexObj.Expression := '^([a-zA-Z0-9\-\.]+)(|/[0-9a-zA-Z\-]+):(.*)$'; |
826 |
|
Result := RegexObj.Exec(ConnectString); |
827 |
|
if Result then |
828 |
|
begin |
829 |
< |
{Netbui} |
829 |
> |
{Legacy TCP Format} |
830 |
|
ServerName := RegexObj.Match[1]; |
831 |
|
if RegexObj.MatchLen[2] > 0 then |
832 |
|
PortNo := system.Copy(ConnectString,RegexObj.MatchPos[2]+1,RegexObj.MatchLen[2]-1); |
833 |
|
DatabaseName := RegexObj.Match[3]; |
834 |
< |
Protocol := NamedPipe |
834 |
> |
Protocol := TCP; |
835 |
|
end |
836 |
|
else |
837 |
|
begin |
838 |
< |
Result := true; |
839 |
< |
Protocol := Local; {Assume local} |
838 |
> |
RegexObj.Expression := '^\\\\([a-zA-Z0-9\-\.]+)(|@[0-9a-zA-Z\-]+)\\(.*)$'; |
839 |
> |
Result := RegexObj.Exec(ConnectString); |
840 |
> |
if Result then |
841 |
> |
begin |
842 |
> |
{Netbui} |
843 |
> |
ServerName := RegexObj.Match[1]; |
844 |
> |
if RegexObj.MatchLen[2] > 0 then |
845 |
> |
PortNo := system.Copy(ConnectString,RegexObj.MatchPos[2]+1,RegexObj.MatchLen[2]-1); |
846 |
> |
DatabaseName := RegexObj.Match[3]; |
847 |
> |
Protocol := NamedPipe |
848 |
> |
end |
849 |
> |
else |
850 |
> |
begin |
851 |
> |
Result := true; |
852 |
> |
Protocol := Local; {Assume local} |
853 |
> |
end; |
854 |
|
end; |
855 |
|
end; |
856 |
|
end; |
908 |
|
|
909 |
|
function MakeConnectString(ServerName, DatabaseName: AnsiString; |
910 |
|
Protocol: TProtocol; PortNo: AnsiString): AnsiString; |
911 |
+ |
|
912 |
+ |
function FormatURL: AnsiString; |
913 |
+ |
begin |
914 |
+ |
if (ServerName = '') and (Pos('/',DatabaseName) <= 1) then |
915 |
+ |
Result := DatabaseName |
916 |
+ |
else |
917 |
+ |
Result := ServerName + '/' + DatabaseName; |
918 |
+ |
end; |
919 |
+ |
|
920 |
|
begin |
921 |
|
if PortNo <> '' then |
922 |
|
case Protocol of |
936 |
|
SPX: Result := ServerName + '@' + DatabaseName; {do not localize} |
937 |
|
NamedPipe: Result := '\\' + ServerName + '\' + DatabaseName; {do not localize} |
938 |
|
Local: Result := DatabaseName; {do not localize} |
939 |
< |
inet: Result := 'inet://' + ServerName + '/'+ DatabaseName; {do not localize} |
940 |
< |
wnet: Result := 'wnet://' + ServerName + '/'+ DatabaseName; {do not localize} |
941 |
< |
xnet: Result := 'xnet://' + ServerName + '/'+ DatabaseName; {do not localize} |
939 |
> |
inet: Result := 'inet://' + FormatURL; {do not localize} |
940 |
> |
inet4: Result := 'inet4://' + FormatURL; {do not localize} |
941 |
> |
inet6: Result := 'inet6://' + FormatURL; {do not localize} |
942 |
> |
wnet: Result := 'wnet://' + FormatURL; {do not localize} |
943 |
> |
xnet: Result := 'xnet://' + FormatURL; {do not localize} |
944 |
|
end; |
945 |
|
end; |
946 |
|
|
974 |
|
Result := StringReplace(s,'''','''''',[rfReplaceAll]); |
975 |
|
end; |
976 |
|
|
977 |
+ |
{ TSQLwithNamedParamsTokeniser } |
978 |
+ |
|
979 |
+ |
procedure TSQLwithNamedParamsTokeniser.Assign(source: TSQLTokeniser); |
980 |
+ |
begin |
981 |
+ |
inherited Assign(source); |
982 |
+ |
if source is TSQLwithNamedParamsTokeniser then |
983 |
+ |
begin |
984 |
+ |
FState := TSQLwithNamedParamsTokeniser(source).FState; |
985 |
+ |
FNested := TSQLwithNamedParamsTokeniser(source).FNested; |
986 |
+ |
end; |
987 |
+ |
end; |
988 |
+ |
|
989 |
+ |
procedure TSQLwithNamedParamsTokeniser.Reset; |
990 |
+ |
begin |
991 |
+ |
inherited Reset; |
992 |
+ |
FState := stInit; |
993 |
+ |
FNested := 0; |
994 |
+ |
end; |
995 |
+ |
|
996 |
+ |
function TSQLwithNamedParamsTokeniser.TokenFound(var token: TSQLTokens |
997 |
+ |
): boolean; |
998 |
+ |
begin |
999 |
+ |
Result := inherited TokenFound(token); |
1000 |
+ |
if not Result then Exit; |
1001 |
+ |
|
1002 |
+ |
case FState of |
1003 |
+ |
stInit: |
1004 |
+ |
begin |
1005 |
+ |
case token of |
1006 |
+ |
sqltColon: |
1007 |
+ |
begin |
1008 |
+ |
FState := stInParam; |
1009 |
+ |
ResetQueue(token); |
1010 |
+ |
end; |
1011 |
+ |
|
1012 |
+ |
sqltBegin: |
1013 |
+ |
begin |
1014 |
+ |
FState := stInBlock; |
1015 |
+ |
FNested := 1; |
1016 |
+ |
end; |
1017 |
+ |
|
1018 |
+ |
sqltOpenSquareBracket: |
1019 |
+ |
FState := stInArrayDim; |
1020 |
+ |
|
1021 |
+ |
end; |
1022 |
+ |
end; |
1023 |
+ |
|
1024 |
+ |
stInParam: |
1025 |
+ |
begin |
1026 |
+ |
case token of |
1027 |
+ |
sqltIdentifier: |
1028 |
+ |
token := sqltParam; |
1029 |
+ |
|
1030 |
+ |
sqltIdentifierInDoubleQuotes: |
1031 |
+ |
token := sqltQuotedParam; |
1032 |
+ |
|
1033 |
+ |
else |
1034 |
+ |
begin |
1035 |
+ |
QueueToken(token); |
1036 |
+ |
ReleaseQueue(token); |
1037 |
+ |
end; |
1038 |
+ |
end; |
1039 |
+ |
FState := stInit; |
1040 |
+ |
end; |
1041 |
+ |
|
1042 |
+ |
stInBlock: |
1043 |
+ |
begin |
1044 |
+ |
case token of |
1045 |
+ |
sqltBegin: |
1046 |
+ |
Inc(FNested); |
1047 |
+ |
|
1048 |
+ |
sqltEnd: |
1049 |
+ |
begin |
1050 |
+ |
Dec(FNested); |
1051 |
+ |
if FNested = 0 then |
1052 |
+ |
FState := stInit; |
1053 |
+ |
end; |
1054 |
+ |
end; |
1055 |
+ |
end; |
1056 |
+ |
|
1057 |
+ |
stInArrayDim: |
1058 |
+ |
begin |
1059 |
+ |
if token = sqltCloseSquareBracket then |
1060 |
+ |
FState := stInit; |
1061 |
+ |
end; |
1062 |
+ |
end; |
1063 |
+ |
|
1064 |
+ |
Result := (FState <> stInParam); |
1065 |
+ |
end; |
1066 |
+ |
|
1067 |
+ |
{ TSQLTokeniser } |
1068 |
+ |
|
1069 |
+ |
function TSQLTokeniser.GetNext: TSQLTokens; |
1070 |
+ |
var C: AnsiChar; |
1071 |
+ |
begin |
1072 |
+ |
if EOF then |
1073 |
+ |
Result := sqltEOF |
1074 |
+ |
else |
1075 |
+ |
begin |
1076 |
+ |
C := GetChar; |
1077 |
+ |
case C of |
1078 |
+ |
#0: |
1079 |
+ |
Result := sqltEOF; |
1080 |
+ |
' ',TAB: |
1081 |
+ |
Result := sqltSpace; |
1082 |
+ |
'0'..'9': |
1083 |
+ |
Result := sqltNumberString; |
1084 |
+ |
';': |
1085 |
+ |
Result := sqltSemiColon; |
1086 |
+ |
'?': |
1087 |
+ |
Result := sqltPlaceholder; |
1088 |
+ |
'|': |
1089 |
+ |
Result := sqltPipe; |
1090 |
+ |
'"': |
1091 |
+ |
Result := sqltDoubleQuotes; |
1092 |
+ |
'''': |
1093 |
+ |
Result := sqltSingleQuotes; |
1094 |
+ |
'/': |
1095 |
+ |
Result := sqltForwardSlash; |
1096 |
+ |
'*': |
1097 |
+ |
Result := sqltAsterisk; |
1098 |
+ |
'(': |
1099 |
+ |
Result := sqltOpenBracket; |
1100 |
+ |
')': |
1101 |
+ |
Result := sqltCloseBracket; |
1102 |
+ |
':': |
1103 |
+ |
Result := sqltColon; |
1104 |
+ |
',': |
1105 |
+ |
Result := sqltComma; |
1106 |
+ |
'.': |
1107 |
+ |
Result := sqltPeriod; |
1108 |
+ |
'=': |
1109 |
+ |
Result := sqltEquals; |
1110 |
+ |
'[': |
1111 |
+ |
Result := sqltOpenSquareBracket; |
1112 |
+ |
']': |
1113 |
+ |
Result := sqltCloseSquareBracket; |
1114 |
+ |
'<': |
1115 |
+ |
Result := sqltLT; |
1116 |
+ |
'>': |
1117 |
+ |
Result := sqltGT; |
1118 |
+ |
CR: |
1119 |
+ |
Result := sqltCR; |
1120 |
+ |
LF: |
1121 |
+ |
Result := sqltEOL; |
1122 |
+ |
else |
1123 |
+ |
if C in ValidSQLIdentifierChars then |
1124 |
+ |
Result := sqltIdentifier |
1125 |
+ |
else |
1126 |
+ |
Result := sqltOtherCharacter; |
1127 |
+ |
end; |
1128 |
+ |
FLastChar := C |
1129 |
+ |
end; |
1130 |
+ |
FNextToken := Result; |
1131 |
+ |
end; |
1132 |
+ |
|
1133 |
+ |
procedure TSQLTokeniser.PopQueue(var token: TSQLTokens); |
1134 |
+ |
begin |
1135 |
+ |
if FQFirst = FQLast then |
1136 |
+ |
IBError(ibxeTokenQueueUnderflow,[]); |
1137 |
+ |
token := FTokenQueue[FQFirst].token; |
1138 |
+ |
FString := FTokenQueue[FQFirst].text; |
1139 |
+ |
Inc(FQFirst); |
1140 |
+ |
if FQFirst = FQLast then |
1141 |
+ |
FQueueState := tsHold; |
1142 |
+ |
end; |
1143 |
+ |
|
1144 |
+ |
procedure TSQLTokeniser.Assign(source: TSQLTokeniser); |
1145 |
+ |
begin |
1146 |
+ |
FString := source.FString; |
1147 |
+ |
FNextToken := source.FNextToken; |
1148 |
+ |
FTokenQueue := source.FTokenQueue; |
1149 |
+ |
FQueueState := source.FQueueState; |
1150 |
+ |
FQFirst := source.FQFirst; |
1151 |
+ |
FQLast := source.FQLast; |
1152 |
+ |
end; |
1153 |
+ |
|
1154 |
+ |
function TSQLTokeniser.TokenFound(var token: TSQLTokens): boolean; |
1155 |
+ |
begin |
1156 |
+ |
Result := (FState = stDefault); |
1157 |
+ |
if Result and (token = sqltIdentifier) then |
1158 |
+ |
FindReservedWord(FString,token); |
1159 |
+ |
end; |
1160 |
+ |
|
1161 |
+ |
procedure TSQLTokeniser.QueueToken(token: TSQLTokens; text: AnsiString); |
1162 |
+ |
begin |
1163 |
+ |
if FQLast > TokenQueueMaxSize then |
1164 |
+ |
IBError(ibxeTokenQueueOverflow,[]); |
1165 |
+ |
FTokenQueue[FQLast].token := token; |
1166 |
+ |
FTokenQueue[FQLast].text := text; |
1167 |
+ |
Inc(FQLast); |
1168 |
+ |
end; |
1169 |
+ |
|
1170 |
+ |
procedure TSQLTokeniser.QueueToken(token: TSQLTokens); |
1171 |
+ |
begin |
1172 |
+ |
QueueToken(token,TokenText); |
1173 |
+ |
end; |
1174 |
+ |
|
1175 |
+ |
procedure TSQLTokeniser.ResetQueue; |
1176 |
+ |
begin |
1177 |
+ |
FQFirst := 0; |
1178 |
+ |
FQLast := 0; |
1179 |
+ |
FQueueState := tsHold; |
1180 |
+ |
end; |
1181 |
+ |
|
1182 |
+ |
procedure TSQLTokeniser.ResetQueue(token: TSQLTokens; text: AnsiString); |
1183 |
+ |
begin |
1184 |
+ |
ResetQueue; |
1185 |
+ |
QueueToken(token,text); |
1186 |
+ |
end; |
1187 |
+ |
|
1188 |
+ |
procedure TSQLTokeniser.ResetQueue(token: TSQLTokens); |
1189 |
+ |
begin |
1190 |
+ |
ResetQueue; |
1191 |
+ |
QueueToken(token); |
1192 |
+ |
end; |
1193 |
+ |
|
1194 |
+ |
procedure TSQLTokeniser.ReleaseQueue(var token: TSQLTokens); |
1195 |
+ |
begin |
1196 |
+ |
FQueueState := tsRelease; |
1197 |
+ |
PopQueue(token); |
1198 |
+ |
end; |
1199 |
+ |
|
1200 |
+ |
procedure TSQLTokeniser.ReleaseQueue; |
1201 |
+ |
begin |
1202 |
+ |
FQueueState := tsRelease; |
1203 |
+ |
end; |
1204 |
+ |
|
1205 |
+ |
function TSQLTokeniser.GetQueuedText: AnsiString; |
1206 |
+ |
var i: integer; |
1207 |
+ |
begin |
1208 |
+ |
Result := ''; |
1209 |
+ |
for i := FQFirst to FQLast do |
1210 |
+ |
Result := Result + FTokenQueue[i].text; |
1211 |
+ |
end; |
1212 |
+ |
|
1213 |
+ |
procedure TSQLTokeniser.SetTokenText(text: AnsiString); |
1214 |
+ |
begin |
1215 |
+ |
FString := text; |
1216 |
+ |
end; |
1217 |
+ |
|
1218 |
+ |
constructor TSQLTokeniser.Create; |
1219 |
+ |
begin |
1220 |
+ |
inherited Create; |
1221 |
+ |
Reset; |
1222 |
+ |
end; |
1223 |
+ |
|
1224 |
+ |
destructor TSQLTokeniser.Destroy; |
1225 |
+ |
begin |
1226 |
+ |
Reset; |
1227 |
+ |
inherited Destroy; |
1228 |
+ |
end; |
1229 |
+ |
|
1230 |
+ |
procedure TSQLTokeniser.Reset; |
1231 |
+ |
begin |
1232 |
+ |
FNextToken := sqltInit; |
1233 |
+ |
FState := stDefault; |
1234 |
+ |
FString := ''; |
1235 |
+ |
FEOF := false; |
1236 |
+ |
ResetQueue; |
1237 |
+ |
end; |
1238 |
+ |
|
1239 |
+ |
function TSQLTokeniser.GetNextToken: TSQLTokens; |
1240 |
+ |
begin |
1241 |
+ |
if FQueueState = tsRelease then |
1242 |
+ |
repeat |
1243 |
+ |
PopQueue(Result); |
1244 |
+ |
FEOF := Result = sqltEOF; |
1245 |
+ |
if TokenFound(Result) then |
1246 |
+ |
Exit; |
1247 |
+ |
until FQueueState <> tsRelease; |
1248 |
+ |
|
1249 |
+ |
Result := InternalGetNextToken; |
1250 |
+ |
end; |
1251 |
+ |
|
1252 |
+ |
{a simple lookahead one algorithm to extra the next symbol} |
1253 |
+ |
|
1254 |
+ |
function TSQLTokeniser.InternalGetNextToken: TSQLTokens; |
1255 |
+ |
var C: AnsiChar; |
1256 |
+ |
begin |
1257 |
+ |
Result := sqltEOF; |
1258 |
+ |
|
1259 |
+ |
if FNextToken = sqltInit then |
1260 |
+ |
GetNext; |
1261 |
+ |
|
1262 |
+ |
repeat |
1263 |
+ |
Result := FNextToken; |
1264 |
+ |
C := FLastChar; |
1265 |
+ |
GetNext; |
1266 |
+ |
|
1267 |
+ |
if FSkipNext then |
1268 |
+ |
begin |
1269 |
+ |
FSkipNext := false; |
1270 |
+ |
continue; |
1271 |
+ |
end; |
1272 |
+ |
|
1273 |
+ |
case FState of |
1274 |
+ |
stInComment: |
1275 |
+ |
begin |
1276 |
+ |
if (Result = sqltAsterisk) and (FNextToken = sqltForwardSlash) then |
1277 |
+ |
begin |
1278 |
+ |
FState := stDefault; |
1279 |
+ |
Result := sqltComment; |
1280 |
+ |
GetNext; |
1281 |
+ |
end |
1282 |
+ |
else |
1283 |
+ |
FString := FString + C; |
1284 |
+ |
end; |
1285 |
+ |
|
1286 |
+ |
stInCommentLine: |
1287 |
+ |
begin |
1288 |
+ |
case Result of |
1289 |
+ |
sqltEOL: |
1290 |
+ |
begin |
1291 |
+ |
FState := stDefault; |
1292 |
+ |
Result := sqltCommentLine; |
1293 |
+ |
end; |
1294 |
+ |
|
1295 |
+ |
sqltCR: {ignore}; |
1296 |
+ |
|
1297 |
+ |
else |
1298 |
+ |
FString := FString + C; |
1299 |
+ |
end; |
1300 |
+ |
end; |
1301 |
+ |
|
1302 |
+ |
stSingleQuoted: |
1303 |
+ |
begin |
1304 |
+ |
if (Result = sqltSingleQuotes) then |
1305 |
+ |
begin |
1306 |
+ |
if (FNextToken = sqltSingleQuotes) then |
1307 |
+ |
begin |
1308 |
+ |
FSkipNext := true; |
1309 |
+ |
FString := FString + C; |
1310 |
+ |
end |
1311 |
+ |
else |
1312 |
+ |
begin |
1313 |
+ |
Result := sqltQuotedString; |
1314 |
+ |
FState := stDefault; |
1315 |
+ |
end; |
1316 |
+ |
end |
1317 |
+ |
else |
1318 |
+ |
FString := FString + C; |
1319 |
+ |
end; |
1320 |
+ |
|
1321 |
+ |
stDoubleQuoted: |
1322 |
+ |
begin |
1323 |
+ |
if (Result = sqltDoubleQuotes) then |
1324 |
+ |
begin |
1325 |
+ |
if (FNextToken = sqltDoubleQuotes) then |
1326 |
+ |
begin |
1327 |
+ |
FSkipNext := true; |
1328 |
+ |
FString := FString + C; |
1329 |
+ |
end |
1330 |
+ |
else |
1331 |
+ |
begin |
1332 |
+ |
Result := sqltIdentifierInDoubleQuotes; |
1333 |
+ |
FState := stDefault; |
1334 |
+ |
end; |
1335 |
+ |
end |
1336 |
+ |
else |
1337 |
+ |
FString := FString + C; |
1338 |
+ |
end; |
1339 |
+ |
|
1340 |
+ |
stInIdentifier: |
1341 |
+ |
begin |
1342 |
+ |
FString := FString + C; |
1343 |
+ |
Result := sqltIdentifier; |
1344 |
+ |
if not (FNextToken in [sqltIdentifier,sqltNumberString]) then |
1345 |
+ |
FState := stDefault |
1346 |
+ |
end; |
1347 |
+ |
|
1348 |
+ |
stInNumeric: |
1349 |
+ |
begin |
1350 |
+ |
FString := FString + C; |
1351 |
+ |
if (Result = sqltPeriod) and (FNextToken = sqltPeriod) then |
1352 |
+ |
begin |
1353 |
+ |
{malformed decimal} |
1354 |
+ |
FState := stInIdentifier; |
1355 |
+ |
Result := sqltIdentifier |
1356 |
+ |
end |
1357 |
+ |
else |
1358 |
+ |
begin |
1359 |
+ |
if not (FNextToken in [sqltNumberString,sqltPeriod]) then |
1360 |
+ |
FState := stDefault; |
1361 |
+ |
Result := sqltNumberString; |
1362 |
+ |
end; |
1363 |
+ |
end; |
1364 |
+ |
|
1365 |
+ |
else {stDefault} |
1366 |
+ |
begin |
1367 |
+ |
FString := C; |
1368 |
+ |
case Result of |
1369 |
+ |
|
1370 |
+ |
sqltPipe: |
1371 |
+ |
if FNextToken = sqltPipe then |
1372 |
+ |
begin |
1373 |
+ |
Result := sqltConcatSymbol; |
1374 |
+ |
FString := C + FLastChar; |
1375 |
+ |
GetNext; |
1376 |
+ |
end; |
1377 |
+ |
|
1378 |
+ |
sqltForwardSlash: |
1379 |
+ |
begin |
1380 |
+ |
if FNextToken = sqltAsterisk then |
1381 |
+ |
begin |
1382 |
+ |
FString := ''; |
1383 |
+ |
GetNext; |
1384 |
+ |
FState := stInComment; |
1385 |
+ |
end |
1386 |
+ |
else |
1387 |
+ |
if FNextToken = sqltForwardSlash then |
1388 |
+ |
begin |
1389 |
+ |
FString := ''; |
1390 |
+ |
GetNext; |
1391 |
+ |
FState := stInCommentLine; |
1392 |
+ |
end; |
1393 |
+ |
end; |
1394 |
+ |
|
1395 |
+ |
sqltSingleQuotes: |
1396 |
+ |
begin |
1397 |
+ |
FString := ''; |
1398 |
+ |
FState := stSingleQuoted; |
1399 |
+ |
end; |
1400 |
+ |
|
1401 |
+ |
sqltDoubleQuotes: |
1402 |
+ |
begin |
1403 |
+ |
FString := ''; |
1404 |
+ |
FState := stDoubleQuoted; |
1405 |
+ |
end; |
1406 |
+ |
|
1407 |
+ |
sqltIdentifier: |
1408 |
+ |
if FNextToken = sqltIdentifier then |
1409 |
+ |
FState := stInIdentifier; |
1410 |
+ |
|
1411 |
+ |
sqltNumberString: |
1412 |
+ |
if FNextToken in [sqltNumberString,sqltPeriod] then |
1413 |
+ |
FState := stInNumeric; |
1414 |
+ |
end; |
1415 |
+ |
end; |
1416 |
+ |
end; |
1417 |
+ |
|
1418 |
+ |
// writeln(FString); |
1419 |
+ |
FEOF := Result = sqltEOF; |
1420 |
+ |
until TokenFound(Result) or EOF; |
1421 |
+ |
end; |
1422 |
+ |
|
1423 |
|
end. |