File Source for FormulaParser.php

PHPExcel_Calculation

# Source for file FormulaParser.php

Documentation is available at FormulaParser.php

1. <?php
2. /**
3. * PHPExcel
4. *
5. * Copyright (c) 2006 - 2011 PHPExcel
6. *
7. * This library is free software; you can redistribute it and/or
8. * modify it under the terms of the GNU Lesser General Public
9. * License as published by the Free Software Foundation; either
10. * version 2.1 of the License, or (at your option) any later version.
11. *
12. * This library is distributed in the hope that it will be useful,
13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15. * Lesser General Public License for more details.
16. *
17. * You should have received a copy of the GNU Lesser General Public
18. * License along with this library; if not, write to the Free Software
19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20. *
21. * @category PHPExcel
22. * @package PHPExcel_Calculation
23. * @copyright Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
24. * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
25. * @version 1.7.6, 2011-02-27
26. */
29. /*
30. PARTLY BASED ON:
31. Copyright (c) 2007 E. W. Bachtal, Inc.
33. Permission is hereby granted, free of charge, to any person obtaining a copy of this software
34. and associated documentation files (the "Software"), to deal in the Software without restriction,
35. including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
36. and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
37. subject to the following conditions:
39. The above copyright notice and this permission notice shall be included in all copies or substantial
40. portions of the Software.
42. The software is provided "as is", without warranty of any kind, express or implied, including but not
43. limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In
44. no event shall the authors or copyright holders be liable for any claim, damages or other liability,
45. whether in an action of contract, tort or otherwise, arising from, out of or in connection with the
46. software or the use or other dealings in the software.
48. http://ewbi.blogs.com/develops/2007/03/excel_formula_p.html
49. http://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
50. */
52. /**
53. * PHPExcel_Calculation_FormulaParser
54. *
55. * @category PHPExcel
56. * @package PHPExcel_Calculation
57. * @copyright Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
58. */
59. class PHPExcel_Calculation_FormulaParser {
60. /* Character constants */
61. const QUOTE_DOUBLE = '"';
62. const QUOTE_SINGLE = '\'';
63. const BRACKET_CLOSE = ']';
64. const BRACKET_OPEN = '[';
65. const BRACE_OPEN = '{';
66. const BRACE_CLOSE = '}';
67. const PAREN_OPEN = '(';
68. const PAREN_CLOSE = ')';
69. const SEMICOLON = ';';
70. const WHITESPACE = ' ';
71. const COMMA = ',';
72. const ERROR_START = '#';
74. const OPERATORS_SN = "+-";
75. const OPERATORS_INFIX = "+-*/^&=><";
76. const OPERATORS_POSTFIX = "%";
78. /**
79. * Formula
80. *
81. * @var string
82. */
83. private $_formula;
85. /**
86. * Tokens
87. *
88. * @var PHPExcel_Calculation_FormulaToken[]
89. */
90. private $_tokens = array();
92. /**
93. * Create a new PHPExcel_Calculation_FormulaParser
94. *
95. * @param string $pFormula Formula to parse
96. * @throws Exception
97. */
98. public function __construct($pFormula = '')
99. {
100. // Check parameters
101. if ( is_null($pFormula)) {
102. throw new Exception("Invalid parameter passed: formula");
103. }
105. // Initialise values
106. $this->_formula = trim($pFormula);
107. // Parse!
108. $this->_parseToTokens();
109. }
111. /**
112. * Get Formula
113. *
114. * @return string
115. */
116. public function getFormula() {
117. return $this->_formula;
118. }
120. /**
121. * Get Token
122. *
123. * @param int $pId Token id
124. * @return string
125. * @throws Exception
126. */
127. public function getToken($pId = 0) {
128. if (isset($this->_tokens[$pId])) {
129. return $this->_tokens[$pId];
130. } else {
131. throw new Exception("Token with id $pId does not exist.");
132. }
133. }
135. /**
136. * Get Token count
137. *
138. * @return string
139. */
140. public function getTokenCount() {
141. return count($this->_tokens);
142. }
144. /**
145. * Get Tokens
146. *
147. * @return PHPExcel_Calculation_FormulaToken[]
148. */
149. public function getTokens() {
150. return $this->_tokens;
151. }
153. /**
154. * Parse to tokens
155. */
156. private function _parseToTokens() {
157. // No attempt is made to verify formulas; assumes formulas are derived from Excel, where
158. // they can only exist if valid; stack overflows/underflows sunk as nulls without exceptions.
160. // Check if the formula has a valid starting =
161. $formulaLength = strlen($this->_formula);
162. if ($formulaLength < 2 || $this->_formula{0} != '=') return;
164. // Helper variables
165. $tokens1 = $tokens2 = $stack = array();
166. $inString = $inPath = $inRange = $inError = false;
167. $token = $previousToken = $nextToken = null;
169. $index = 1;
170. $value = '';
172. $ERRORS = array("#NULL!", "#DIV/0!", "#VALUE!", "#REF!", "#NAME?", "#NUM!", "#N/A");
173. $COMPARATORS_MULTI = array(">=", "<=", "<>");
175. while ($index < $formulaLength) {
176. // state-dependent character evaluation (order is important)
178. // double-quoted strings
179. // embeds are doubled
180. // end marks token
181. if ($inString) {
182. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: QUOTE_DOUBLE) {
183. if ((($index + 2) <= $formulaLength) && ($this->_formula{$index + 1} == PHPExcel_Calculation_FormulaParser:: QUOTE_DOUBLE)) {
184. $value .= PHPExcel_Calculation_FormulaParser:: QUOTE_DOUBLE;
185. ++$index;
186. } else {
187. $inString = false;
188. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_TEXT);
189. $value = "";
190. }
191. } else {
192. $value .= $this->_formula{$index};
193. }
194. ++$index;
195. continue;
196. }
198. // single-quoted strings (links)
199. // embeds are double
200. // end does not mark a token
201. if ($inPath) {
202. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: QUOTE_SINGLE) {
203. if ((($index + 2) <= $formulaLength) && ($this->_formula{$index + 1} == PHPExcel_Calculation_FormulaParser:: QUOTE_SINGLE)) {
204. $value .= PHPExcel_Calculation_FormulaParser:: QUOTE_SINGLE;
205. ++$index;
206. } else {
207. $inPath = false;
208. }
209. } else {
210. $value .= $this->_formula{$index};
211. }
212. ++$index;
213. continue;
214. }
216. // bracked strings (R1C1 range index or linked workbook name)
217. // no embeds (changed to "()" by Excel)
218. // end does not mark a token
219. if ($inRange) {
220. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: BRACKET_CLOSE) {
221. $inRange = false;
222. }
223. $value .= $this->_formula{$index};
224. ++$index;
225. continue;
226. }
228. // error values
229. // end marks a token, determined from absolute list of values
230. if ($inError) {
231. $value .= $this->_formula{$index};
232. ++$index;
233. if ( in_array($value, $ERRORS)) {
234. $inError = false;
235. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_ERROR);
236. $value = "";
237. }
238. continue;
239. }
241. // scientific notation check
242. if ( strpos( PHPExcel_Calculation_FormulaParser:: OPERATORS_SN, $this->_formula{$index}) !== false) {
243. if ( strlen($value) > 1) {
244. if ( preg_match("/^[1-9]{1}(\.[0-9]+)?E{1}$/", $this->_formula{$index}) != 0) {
245. $value .= $this->_formula{$index};
246. ++$index;
247. continue;
248. }
249. }
250. }
252. // independent character evaluation (order not important)
254. // establish state-dependent character evaluations
255. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: QUOTE_DOUBLE) {
256. if ( strlen($value > 0)) { // unexpected
257. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_UNKNOWN);
258. $value = "";
259. }
260. $inString = true;
261. ++$index;
262. continue;
263. }
265. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: QUOTE_SINGLE) {
266. if ( strlen($value) > 0) { // unexpected
267. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_UNKNOWN);
268. $value = "";
269. }
270. $inPath = true;
271. ++$index;
272. continue;
273. }
275. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: BRACKET_OPEN) {
276. $inRange = true;
277. $value .= PHPExcel_Calculation_FormulaParser:: BRACKET_OPEN;
278. ++$index;
279. continue;
280. }
282. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: ERROR_START) {
283. if ( strlen($value) > 0) { // unexpected
284. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_UNKNOWN);
285. $value = "";
286. }
287. $inError = true;
288. $value .= PHPExcel_Calculation_FormulaParser:: ERROR_START;
289. ++$index;
290. continue;
291. }
293. // mark start and end of arrays and array rows
294. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: BRACE_OPEN) {
295. if ( strlen($value) > 0) { // unexpected
296. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_UNKNOWN);
297. $value = "";
298. }
300. $tmp = new PHPExcel_Calculation_FormulaToken("ARRAY", PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_START);
301. $tokens1[] = $tmp;
302. $stack[] = clone $tmp;
304. $tmp = new PHPExcel_Calculation_FormulaToken("ARRAYROW", PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_START);
305. $tokens1[] = $tmp;
306. $stack[] = clone $tmp;
308. ++$index;
309. continue;
310. }
312. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: SEMICOLON) {
313. if ( strlen($value) > 0) {
314. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
315. $value = "";
316. }
318. $tmp = array_pop($stack);
319. $tmp->setValue("");
320. $tmp->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP);
321. $tokens1[] = $tmp;
323. $tmp = new PHPExcel_Calculation_FormulaToken(",", PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_ARGUMENT);
324. $tokens1[] = $tmp;
326. $tmp = new PHPExcel_Calculation_FormulaToken("ARRAYROW", PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_START);
327. $tokens1[] = $tmp;
328. $stack[] = clone $tmp;
330. ++$index;
331. continue;
332. }
334. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: BRACE_CLOSE) {
335. if ( strlen($value) > 0) {
336. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
337. $value = "";
338. }
340. $tmp = array_pop($stack);
341. $tmp->setValue("");
342. $tmp->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP);
343. $tokens1[] = $tmp;
345. $tmp = array_pop($stack);
346. $tmp->setValue("");
347. $tmp->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP);
348. $tokens1[] = $tmp;
350. ++$index;
351. continue;
352. }
354. // trim white-space
355. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: WHITESPACE) {
356. if ( strlen($value) > 0) {
357. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
358. $value = "";
359. }
360. $tokens1[] = new PHPExcel_Calculation_FormulaToken("", PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_WHITESPACE);
361. ++$index;
362. while (($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: WHITESPACE) && ($index < $formulaLength)) {
363. ++$index;
364. }
365. continue;
366. }
368. // multi-character comparators
369. if (($index + 2) <= $formulaLength) {
370. if ( in_array( substr($this->_formula, $index, 2), $COMPARATORS_MULTI)) {
371. if ( strlen($value) > 0) {
372. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
373. $value = "";
374. }
375. $tokens1[] = new PHPExcel_Calculation_FormulaToken( substr($this->_formula, $index, 2), PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_LOGICAL);
376. $index += 2;
377. continue;
378. }
379. }
381. // standard infix operators
382. if ( strpos( PHPExcel_Calculation_FormulaParser:: OPERATORS_INFIX, $this->_formula{$index}) !== false) {
383. if ( strlen($value) > 0) {
384. $tokens1[] =new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
385. $value = "";
386. }
387. $tokens1[] = new PHPExcel_Calculation_FormulaToken($this->_formula{$index}, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORINFIX);
388. ++$index;
389. continue;
390. }
392. // standard postfix operators (only one)
393. if ( strpos( PHPExcel_Calculation_FormulaParser:: OPERATORS_POSTFIX, $this->_formula{$index}) !== false) {
394. if ( strlen($value) > 0) {
395. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
396. $value = "";
397. }
398. $tokens1[] = new PHPExcel_Calculation_FormulaToken($this->_formula{$index}, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORPOSTFIX);
399. ++$index;
400. continue;
401. }
403. // start subexpression or function
404. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: PAREN_OPEN) {
405. if ( strlen($value) > 0) {
406. $tmp = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_START);
407. $tokens1[] = $tmp;
408. $stack[] = clone $tmp;
409. $value = "";
410. } else {
411. $tmp = new PHPExcel_Calculation_FormulaToken("", PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_SUBEXPRESSION, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_START);
412. $tokens1[] = $tmp;
413. $stack[] = clone $tmp;
414. }
415. ++$index;
416. continue;
417. }
419. // function, subexpression, or array parameters, or operand unions
420. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: COMMA) {
421. if ( strlen($value) > 0) {
422. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
423. $value = "";
424. }
426. $tmp = array_pop($stack);
427. $tmp->setValue("");
428. $tmp->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP);
429. $stack[] = $tmp;
431. if ($tmp->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION) {
432. $tokens1[] = new PHPExcel_Calculation_FormulaToken(",", PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_UNION);
433. } else {
434. $tokens1[] = new PHPExcel_Calculation_FormulaToken(",", PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_ARGUMENT);
435. }
436. ++$index;
437. continue;
438. }
440. // stop subexpression
441. if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser:: PAREN_CLOSE) {
442. if ( strlen($value) > 0) {
443. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
444. $value = "";
445. }
447. $tmp = array_pop($stack);
448. $tmp->setValue("");
449. $tmp->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP);
450. $tokens1[] = $tmp;
452. ++$index;
453. continue;
454. }
456. // token accumulation
457. $value .= $this->_formula{$index};
458. ++$index;
459. }
461. // dump remaining accumulation
462. if ( strlen($value) > 0) {
463. $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND);
464. }
466. // move tokenList to new set, excluding unnecessary white-space tokens and converting necessary ones to intersections
467. $tokenCount = count($tokens1);
468. for ($i = 0; $i < $tokenCount; ++$i) {
469. $token = $tokens1[$i];
470. if (isset($tokens1[$i - 1])) {
471. $previousToken = $tokens1[$i - 1];
472. } else {
473. $previousToken = null;
474. }
475. if (isset($tokens1[$i + 1])) {
476. $nextToken = $tokens1[$i + 1];
477. } else {
478. $nextToken = null;
479. }
481. if ( is_null($token)) {
482. continue;
483. }
485. if ($token->getTokenType() != PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_WHITESPACE) {
486. $tokens2[] = $token;
487. continue;
488. }
490. if ( is_null($previousToken)) {
491. continue;
492. }
494. if (! (
495. (($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP)) ||
496. (($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_SUBEXPRESSION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP)) ||
497. ($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND)
498. ) ) {
499. continue;
500. }
502. if ( is_null($nextToken)) {
503. continue;
504. }
506. if (! (
507. (($nextToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION) && ($nextToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_START)) ||
508. (($nextToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_SUBEXPRESSION) && ($nextToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_START)) ||
509. ($nextToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND)
510. ) ) {
511. continue;
512. }
514. $tokens2[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_INTERSECTION);
515. }
517. // move tokens to final list, switching infix "-" operators to prefix when appropriate, switching infix "+" operators
518. // to noop when appropriate, identifying operand and infix-operator subtypes, and pulling "@" from function names
519. $this->_tokens = array();
521. $tokenCount = count($tokens2);
522. for ($i = 0; $i < $tokenCount; ++$i) {
523. $token = $tokens2[$i];
524. if (isset($tokens2[$i - 1])) {
525. $previousToken = $tokens2[$i - 1];
526. } else {
527. $previousToken = null;
528. }
529. if (isset($tokens2[$i + 1])) {
530. $nextToken = $tokens2[$i + 1];
531. } else {
532. $nextToken = null;
533. }
535. if ( is_null($token)) {
536. continue;
537. }
539. if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORINFIX && $token->getValue() == "-") {
540. if ($i == 0) {
541. $token->setTokenType( PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORPREFIX);
542. } else if (
543. (($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP)) ||
544. (($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_SUBEXPRESSION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP)) ||
545. ($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORPOSTFIX) ||
546. ($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND)
547. ) {
548. $token->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_MATH);
549. } else {
550. $token->setTokenType( PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORPREFIX);
551. }
553. $this->_tokens[] = $token;
554. continue;
555. }
557. if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORINFIX && $token->getValue() == "+") {
558. if ($i == 0) {
559. continue;
560. } else if (
561. (($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP)) ||
562. (($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_SUBEXPRESSION) && ($previousToken->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_STOP)) ||
563. ($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORPOSTFIX) ||
564. ($previousToken->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND)
565. ) {
566. $token->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_MATH);
567. } else {
568. continue;
569. }
571. $this->_tokens[] = $token;
572. continue;
573. }
575. if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERATORINFIX && $token->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_NOTHING) {
576. if ( strpos("<>=", substr($token->getValue(), 0, 1)) !== false) {
577. $token->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_LOGICAL);
578. } else if ($token->getValue() == "&") {
579. $token->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_CONCATENATION);
580. } else {
581. $token->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_MATH);
582. }
584. $this->_tokens[] = $token;
585. continue;
586. }
588. if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_OPERAND && $token->getTokenSubType() == PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_NOTHING) {
589. if (! is_numeric($token->getValue())) {
590. if ( strtoupper($token->getValue()) == "TRUE" || strtoupper($token->getValue() == "FALSE")) {
591. $token->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_LOGICAL);
592. } else {
593. $token->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_RANGE);
594. }
595. } else {
596. $token->setTokenSubType( PHPExcel_Calculation_FormulaToken:: TOKEN_SUBTYPE_NUMBER);
597. }
599. $this->_tokens[] = $token;
600. continue;
601. }
603. if ($token->getTokenType() == PHPExcel_Calculation_FormulaToken:: TOKEN_TYPE_FUNCTION) {
604. if ( strlen($token->getValue() > 0)) {
605. if ( substr($token->getValue(), 0, 1) == "@") {
606. $token->setValue( substr($token->getValue(), 1));
607. }
608. }
609. }
611. $this->_tokens[] = $token;
612. }
613. }
614. }

Documentation generated on Sun, 27 Feb 2011 16:31:47 -0800 by phpDocumentor 1.4.3