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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef _ZFORFIND_HXX
21 : #define _ZFORFIND_HXX
22 :
23 : #include <com/sun/star/uno/Sequence.hxx>
24 : #include <rtl/ustring.hxx>
25 :
26 : class Date;
27 : class SvNumberformat;
28 : class SvNumberFormatter;
29 :
30 : #define SV_MAX_ANZ_INPUT_STRINGS 20 // max count of substrings in input scanner
31 :
32 : class ImpSvNumberInputScan
33 : {
34 : public:
35 : ImpSvNumberInputScan( SvNumberFormatter* pFormatter );
36 : ~ImpSvNumberInputScan();
37 :
38 : /*!*/ void ChangeIntl(); // MUST be called if language changes
39 :
40 : /// set reference date for offset calculation
41 : void ChangeNullDate( const sal_uInt16 nDay,
42 : const sal_uInt16 nMonth,
43 : const sal_uInt16 nYear );
44 :
45 : /// convert input string to number
46 : bool IsNumberFormat( const OUString& rString, /// input string
47 : short& F_Type, /// format type (in + out)
48 : double& fOutNumber, /// value determined (out)
49 : const SvNumberformat* pFormat = NULL); /// optional a number format to which compare against
50 :
51 : /// after IsNumberFormat: get decimal position
52 92 : short GetDecPos() const { return nDecPos; }
53 : /// after IsNumberFormat: get count of numeric substrings in input string
54 0 : sal_uInt16 GetAnzNums() const { return nAnzNums; }
55 :
56 : /// set threshold of two-digit year input
57 1534 : void SetYear2000( sal_uInt16 nVal ) { nYear2000 = nVal; }
58 : /// get threshold of two-digit year input
59 4 : sal_uInt16 GetYear2000() const { return nYear2000; }
60 :
61 : /** Whether input can be forced to ISO 8601 format.
62 :
63 : Depends on locale's date separator and a specific date format order.
64 :
65 : @param eDateFormat
66 : Evaluated only on first call during one scan process, subsequent
67 : calls return state of nCanForceToIso8601!
68 :
69 : @see nCanForceToIso8601
70 : */
71 : bool CanForceToIso8601( DateFormat eDateFormat );
72 :
73 : void InvalidateDateAcceptancePatterns();
74 :
75 : private:
76 : SvNumberFormatter* pFormatter;
77 : OUString* pUpperMonthText; //* Array of month names, uppercase
78 : OUString* pUpperAbbrevMonthText; //* Array of month names, abbreviated, uppercase
79 : OUString* pUpperGenitiveMonthText; //* Array of genitive month names, uppercase
80 : OUString* pUpperGenitiveAbbrevMonthText; //* Array of genitive month names, abbreviated, uppercase
81 : OUString* pUpperPartitiveMonthText; //* Array of partitive month names, uppercase
82 : OUString* pUpperPartitiveAbbrevMonthText; //* Array of partitive month names, abbreviated, uppercase
83 : OUString* pUpperDayText; //* Array of day of week names, uppercase
84 : OUString* pUpperAbbrevDayText; //* Array of day of week names, abbreviated, uppercase
85 : OUString aUpperCurrSymbol; //* Currency symbol, uppercase
86 : bool bTextInitialized; //* Whether days and months are initialized
87 : bool bScanGenitiveMonths; //* Whether to scan an input for genitive months
88 : bool bScanPartitiveMonths; //* Whether to scan an input for partitive months
89 : Date* pNullDate; //* 30Dec1899
90 : // Variables for provisional results:
91 : OUString sStrArray[SV_MAX_ANZ_INPUT_STRINGS]; //* Array of scanned substrings
92 : bool IsNum[SV_MAX_ANZ_INPUT_STRINGS]; //* Whether a substring is numeric
93 : sal_uInt16 nNums[SV_MAX_ANZ_INPUT_STRINGS]; //* Sequence of offsets to numeric strings
94 : sal_uInt16 nAnzStrings; //* Total count of scanned substrings
95 : sal_uInt16 nAnzNums; //* Count of numeric substrings
96 : bool bDecSepInDateSeps; //* True <=> DecSep in {.,-,/,DateSep}
97 : sal_uInt8 nMatchedAllStrings; //* Scan...String() matched all substrings,
98 :
99 : // bit mask of nMatched... constants
100 : static const sal_uInt8 nMatchedEndString; // 0x01
101 : static const sal_uInt8 nMatchedMidString; // 0x02
102 : static const sal_uInt8 nMatchedStartString; // 0x04
103 : static const sal_uInt8 nMatchedVirgin; // 0x08
104 : static const sal_uInt8 nMatchedUsedAsReturn; // 0x10
105 :
106 : int nSign; // Sign of number
107 : short nMonth; // Month (1..x) if date
108 : // negative => short format
109 : short nMonthPos; // 1 = front, 2 = middle
110 : // 3 = end
111 : sal_uInt16 nTimePos; // Index of first time separator (+1)
112 : short nDecPos; // Index of substring containing "," (+1)
113 : short nNegCheck; // '( )' for negative
114 : short nESign; // Sign of exponent
115 : short nAmPm; // +1 AM, -1 PM, 0 if none
116 : short nLogical; // -1 => False, 1 => True
117 : sal_uInt16 nThousand; // Count of group (AKA thousand) separators
118 : sal_uInt16 nPosThousandString; // Position of concatenaded 000,000,000 string
119 : short eScannedType; // Scanned type
120 : short eSetType; // Preset Type
121 :
122 : sal_uInt16 nStringScanNumFor; // Fixed strings recognized in
123 : // pFormat->NumFor[nNumForStringScan]
124 : short nStringScanSign; // Sign resulting of FixString
125 : sal_uInt16 nYear2000; // Two-digit threshold
126 : // Year as 20xx
127 : // default 18
128 : // number <= nYear2000 => 20xx
129 : // number > nYear2000 => 19xx
130 : sal_uInt16 nTimezonePos; // Index of timezone separator (+1)
131 :
132 : /** State of ISO 8601 detection.
133 :
134 : 0:= don't know yet
135 : 1:= no
136 : 2:= yes, <=2 digits in year
137 : 3:= yes, 3 digits in year
138 : 4:= yes, >=4 digits in year
139 :
140 : @see MayBeIso8601()
141 : */
142 : sal_uInt8 nMayBeIso8601;
143 :
144 : /** State of ISO 8601 can be forced.
145 :
146 : 0:= don't know yet
147 : 1:= no
148 : 2:= yes
149 :
150 : @see CanForceToIso8601()
151 : */
152 : sal_uInt8 nCanForceToIso8601;
153 :
154 : /** State of dd-month-yy or yy-month-dd detection, with month name.
155 :
156 : 0:= don't know yet
157 : 1:= no
158 : 2:= yes, dd-month-yy
159 : 3:= yes, yy-month-dd
160 :
161 : @see MayBeMonthDate()
162 : */
163 : sal_uInt8 nMayBeMonthDate;
164 :
165 : /** Input matched this locale dependent date acceptance pattern.
166 : -2 if not checked yet, -1 if no match, >=0 matched pattern.
167 :
168 : @see IsAcceptedDatePattern()
169 : */
170 : sal_Int32 nAcceptedDatePattern;
171 : com::sun::star::uno::Sequence< OUString > sDateAcceptancePatterns;
172 :
173 : /** If input matched a date acceptance pattern that starts at input
174 : particle sStrArray[nDatePatternStart].
175 :
176 : @see IsAcceptedDatePattern()
177 : */
178 : sal_uInt16 nDatePatternStart;
179 :
180 : #ifdef _ZFORFIND_CXX // methods private to implementation
181 : void Reset(); // Reset all variables before start of analysis
182 :
183 : void InitText(); // Init of months and days of week
184 :
185 : // Convert string to double.
186 : // Only simple unsigned floating point values without any error detection,
187 : // decimal separator has to be '.'
188 : // If bForceFraction==true the string is taken to be the fractional part
189 : // of 0.1234 without the leading 0. (thus being just "1234").
190 : double StringToDouble( const OUString& rStr,
191 : bool bForceFraction = false );
192 :
193 : // Next number/string symbol
194 : bool NextNumberStringSymbol( const sal_Unicode*& pStr,
195 : OUString& rSymbol );
196 :
197 : // Concatenate ,000,23 blocks
198 : // in input to 000123
199 : bool SkipThousands( const sal_Unicode*& pStr, OUString& rSymbol );
200 :
201 : // Divide numbers/strings into
202 : // arrays and variables above.
203 : // Leading blanks and blanks
204 : // after numbers are thrown away
205 : void NumberStringDivision( const OUString& rString );
206 :
207 :
208 : // optimized substring versions
209 :
210 : // Whether rString contains rWhat at nPos
211 22128 : static inline bool StringContains( const OUString& rWhat,
212 : const OUString& rString,
213 : sal_Int32 nPos )
214 : {
215 : // mostly used with one character
216 22128 : if ( rWhat[ 0 ] != rString[ nPos ] )
217 : {
218 21324 : return false;
219 : }
220 804 : return StringContainsImpl( rWhat, rString, nPos );
221 : }
222 :
223 : // Whether pString contains rWhat at nPos
224 0 : static inline bool StringPtrContains( const OUString& rWhat,
225 : const sal_Unicode* pString,
226 : sal_Int32 nPos ) // nPos MUST be a valid offset from pString
227 : {
228 : // mostly used with one character
229 0 : if ( rWhat[ 0 ] != pString[ nPos ] )
230 : {
231 0 : return false;
232 : }
233 0 : return StringPtrContainsImpl( rWhat, pString, nPos );
234 : }
235 :
236 : //! DO NOT use directly
237 : static bool StringContainsImpl( const OUString& rWhat,
238 : const OUString& rString,
239 : sal_Int32 nPos );
240 : //! DO NOT use directly
241 : static bool StringPtrContainsImpl( const OUString& rWhat,
242 : const sal_Unicode* pString,
243 : sal_Int32 nPos );
244 :
245 : // Skip a special character
246 : static inline bool SkipChar( sal_Unicode c,
247 : const OUString& rString,
248 : sal_Int32& nPos );
249 :
250 : // Skip blank
251 : static inline void SkipBlanks( const OUString& rString,
252 : sal_Int32& nPos );
253 :
254 : // Jump over rWhat in rString at nPos
255 : static inline bool SkipString( const OUString& rWhat,
256 : const OUString& rString,
257 : sal_Int32& nPos );
258 :
259 : // Recognizes exactly ,111 as group separator
260 : inline bool GetThousandSep( const OUString& rString,
261 : sal_Int32& nPos,
262 : sal_uInt16 nStringPos );
263 : // Get boolean value
264 : short GetLogical( const OUString& rString );
265 :
266 : // Get month and advance string position
267 : short GetMonth( const OUString& rString,
268 : sal_Int32& nPos );
269 :
270 : // Get day of week and advance string position
271 : int GetDayOfWeek( const OUString& rString,
272 : sal_Int32& nPos );
273 :
274 : // Get currency symbol and advance string position
275 : bool GetCurrency( const OUString& rString,
276 : sal_Int32& nPos,
277 : const SvNumberformat* pFormat = NULL ); // optional number format to match against
278 :
279 : // Get symbol AM or PM and advance string position
280 : bool GetTimeAmPm( const OUString& rString,
281 : sal_Int32& nPos );
282 :
283 : // Get decimal separator and advance string position
284 : inline bool GetDecSep( const OUString& rString,
285 : sal_Int32& nPos );
286 :
287 : // Get hundredth seconds separator and advance string position
288 : inline bool GetTime100SecSep( const OUString& rString,
289 : sal_Int32& nPos );
290 :
291 : // Get sign and advance string position
292 : // Including special case '('
293 : int GetSign( const OUString& rString,
294 : sal_Int32& nPos );
295 :
296 : // Get sign of exponent and advance string position
297 : short GetESign( const OUString& rString,
298 : sal_Int32& nPos );
299 :
300 : // Get next number as array offset
301 : inline bool GetNextNumber( sal_uInt16& i,
302 : sal_uInt16& j );
303 :
304 : /** Converts time -> double (only decimals)
305 :
306 : @return TRUE if time, FALSE if not (e.g. hours >12 with AM/PM)
307 : */
308 : bool GetTimeRef( double& fOutNumber, // result as double
309 : sal_uInt16 nIndex, // Index of hour in input
310 : sal_uInt16 nAnz ); // Count of time substrings in input
311 : sal_uInt16 ImplGetDay ( sal_uInt16 nIndex ); // Day input, 0 if no match
312 : sal_uInt16 ImplGetMonth( sal_uInt16 nIndex ); // Month input, zero based return, NumberOfMonths if no match
313 : sal_uInt16 ImplGetYear ( sal_uInt16 nIndex ); // Year input, 0 if no match
314 :
315 : // Conversion of date to number
316 : bool GetDateRef( double& fDays, // OUT: days diff to null date
317 : sal_uInt16& nCounter, // Count of date substrings
318 : const SvNumberformat* pFormat = NULL ); // optional number format to match against
319 :
320 : // Analyze start of string
321 : bool ScanStartString( const OUString& rString,
322 : const SvNumberformat* pFormat = NULL );
323 :
324 : // Analyze middle substring
325 : bool ScanMidString( const OUString& rString,
326 : sal_uInt16 nStringPos,
327 : const SvNumberformat* pFormat = NULL );
328 :
329 :
330 : // Analyze end of string
331 : bool ScanEndString( const OUString& rString,
332 : const SvNumberformat* pFormat = NULL );
333 :
334 : // Compare rString to substring of array indexed by nString
335 : // nString == 0xFFFF => last substring
336 : bool ScanStringNumFor( const OUString& rString,
337 : sal_Int32 nPos,
338 : const SvNumberformat* pFormat,
339 : sal_uInt16 nString,
340 : bool bDontDetectNegation = false );
341 :
342 : // if nMatchedAllStrings set nMatchedUsedAsReturn and return true,
343 : // else do nothing and return false
344 : bool MatchedReturn();
345 :
346 : //! Be sure that the string to be analyzed is already converted to upper
347 : //! case and if it contained native humber digits that they are already
348 : //! converted to ASCII.
349 :
350 : // Main anlyzing function
351 : bool IsNumberFormatMain( const OUString& rString,
352 : const SvNumberformat* pFormat = NULL); // optional number format to match against
353 :
354 : static inline bool MyIsdigit( sal_Unicode c );
355 :
356 : // native number transliteration if necessary
357 : void TransformInput( OUString& rString );
358 :
359 : /** Whether input matches locale dependent date acceptance pattern.
360 :
361 : @param nStartPatternAt
362 : The pattern matching starts at input particle
363 : sStrArray[nStartPatternAt].
364 :
365 : NOTE: once called the result is remembered, subsequent calls with
366 : different parameters do not check for a match and do not lead to a
367 : different result.
368 : */
369 : bool IsAcceptedDatePattern( sal_uInt16 nStartPatternAt );
370 :
371 : /** Sets (not advances!) rPos to sStrArray[nParticle].getLength() if string
372 : matches separator in pattern at nParticle.
373 :
374 : @returns TRUE if separator matched.
375 : */
376 : bool SkipDatePatternSeparator( sal_uInt16 nParticle, sal_Int32 & rPos );
377 :
378 : /** Obtain order of accepted date pattern coded as, for example,
379 : ('D'<<16)|('M'<<8)|'Y'
380 : */
381 : sal_uInt32 GetDatePatternOrder();
382 :
383 : /** Obtain date format order, from accepted date pattern if available or
384 : otherwise the locale's default order.
385 : */
386 : DateFormat GetDateOrder();
387 :
388 : /** Whether input may be an ISO 8601 date format, yyyy-mm-dd...
389 :
390 : Checks if input has at least 3 numbers for yyyy-mm-dd and the separator
391 : is '-', and 1<=mm<=12 and 1<=dd<=31.
392 :
393 : @see nMayBeIso8601
394 : */
395 : bool MayBeIso8601();
396 :
397 : /** Whether input may be a dd-month-yy format, with month name, not
398 : number.
399 :
400 : @see nMayBeMonthDate
401 : */
402 : bool MayBeMonthDate();
403 :
404 : #endif // _ZFORFIND_CXX
405 : };
406 :
407 :
408 :
409 : #endif // _ZFORFIND_HXX
410 :
411 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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