1 | /* |
1 | /* |
2 | parse_formula.c - Part of psiconv, a PSION 5 file formats converter |
2 | parse_formula.c - Part of psiconv, a PSION 5 file formats converter |
3 | Copyright (c) 2001 Frodo Looijaard <frodol@dds.nl> |
3 | Copyright (c) 2001-2005 Frodo Looijaard <frodo@frodo.looijaard.name> |
4 | |
4 | |
5 | This program is free software; you can redistribute it and/or modify |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by |
6 | it under the terms of the GNU General Public License as published by |
7 | the Free Software Foundation; either version 2 of the License, or |
7 | the Free Software Foundation; either version 2 of the License, or |
8 | (at your option) any later version. |
8 | (at your option) any later version. |
… | |
… | |
22 | |
22 | |
23 | #include <stdlib.h> |
23 | #include <stdlib.h> |
24 | |
24 | |
25 | #include "parse_routines.h" |
25 | #include "parse_routines.h" |
26 | #include "error.h" |
26 | #include "error.h" |
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27 | |
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28 | #ifdef DMALLOC |
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29 | #include <dmalloc.h> |
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|
30 | #endif |
|
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31 | |
27 | |
32 | |
28 | struct formula_element |
33 | struct formula_element |
29 | { |
34 | { |
30 | psiconv_formula_type_t formula_type; |
35 | psiconv_formula_type_t formula_type; |
31 | int number_of_args; |
36 | int number_of_args; |
… | |
… | |
46 | {psiconv_formula_op_mul,2,"*"}, |
51 | {psiconv_formula_op_mul,2,"*"}, |
47 | {psiconv_formula_op_div,2,"/"}, |
52 | {psiconv_formula_op_div,2,"/"}, |
48 | {psiconv_formula_op_pow,2,"^"}, |
53 | {psiconv_formula_op_pow,2,"^"}, |
49 | {psiconv_formula_op_pos,1,"+"}, |
54 | {psiconv_formula_op_pos,1,"+"}, |
50 | {psiconv_formula_op_neg,1,"-"}, |
55 | {psiconv_formula_op_neg,1,"-"}, |
51 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
56 | {psiconv_formula_op_not,1,"NOT"}, |
52 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
57 | {psiconv_formula_op_and,2,"AND"}, |
53 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, /* 10 */ |
58 | {psiconv_formula_op_or,2,"OR"}, /* 10 */ |
54 | {psiconv_formula_op_con,2,"&"}, |
59 | {psiconv_formula_op_con,2,"&"}, |
55 | {psiconv_formula_op_bra,1,"{}"}, |
60 | {psiconv_formula_op_bra,1,"()"}, |
56 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
61 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
57 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
62 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
58 | {psiconv_formula_mark_eof,0,"End of formula"}, |
63 | {psiconv_formula_mark_eof,0,"End of formula"}, |
59 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
64 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
60 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
65 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
… | |
… | |
284 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
289 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
285 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
290 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
286 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
291 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
287 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
292 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
288 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
293 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
289 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
|
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290 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
|
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291 | {psiconv_formula_unknown,0,"*UNKNOWN*"}, |
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292 | {psiconv_formula_unknown,0,"*UNKNOWN*"}}; |
294 | {psiconv_formula_unknown,0,"*UNKNOWN*"}}; |
293 | |
295 | |
294 | static psiconv_string_t psiconv_read_sheet_string(const psiconv_buffer buf, |
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295 | int lev, |
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296 | psiconv_u32 off,int *length, int *status) |
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297 | { |
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298 | int stringlen,i,len,localstatus; |
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299 | psiconv_string_t result; |
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300 | char *res_copy; |
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301 | |
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302 | psiconv_progress(lev+1,off,"Going to read a sheet string"); |
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303 | |
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304 | stringlen = psiconv_read_u8(buf,lev+2,off,&localstatus); |
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305 | if (localstatus) |
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306 | goto ERROR1; |
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307 | psiconv_debug(lev+2,off,"Length: %i",stringlen); |
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308 | len = 1; |
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309 | |
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310 | result = malloc(stringlen + 1); |
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311 | if (!result) |
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312 | goto ERROR1; |
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313 | for (i = 0; (i < stringlen) && !localstatus; i++) |
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314 | result[i] = psiconv_read_u8(buf,lev,off+i+len,&localstatus); |
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315 | if (localstatus) |
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316 | goto ERROR2; |
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317 | result[stringlen] = 0; |
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318 | len += stringlen; |
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319 | |
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320 | res_copy = psiconv_make_printable(result); |
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321 | if (!res_copy) |
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322 | goto ERROR2; |
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323 | psiconv_debug(lev+2,off,"Contents: `%s'",res_copy); |
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324 | free(res_copy); |
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325 | |
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326 | if (length) |
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327 | *length = len; |
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328 | |
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329 | if (status) |
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330 | *status = 0; |
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331 | |
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332 | psiconv_progress(lev+1,off+len-1,"End of sheet string (total length: %08x)", |
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333 | len); |
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334 | |
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335 | return result; |
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336 | |
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337 | |
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338 | ERROR2: |
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339 | free(result); |
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340 | ERROR1: |
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341 | psiconv_warn(lev+1,off,"Reading of sheet string failed"); |
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342 | if (status) |
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343 | *status = localstatus; |
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344 | if (length) |
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345 | *length = 0; |
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346 | return NULL; |
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347 | } |
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348 | |
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349 | |
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350 | static int psiconv_parse_sheet_ref(const psiconv_buffer buf,int lev, |
296 | static int psiconv_parse_sheet_ref(const psiconv_config config, |
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297 | const psiconv_buffer buf,int lev, |
351 | psiconv_u32 off, int *length, |
298 | psiconv_u32 off, int *length, |
352 | psiconv_sheet_ref_t *result) |
299 | psiconv_sheet_ref_t *result) |
353 | { |
300 | { |
354 | int res; |
301 | int res; |
355 | psiconv_u16 temp; |
302 | psiconv_u16 temp; |
356 | |
303 | |
357 | psiconv_progress(lev+1,off,"Going to read a sheet ref"); |
304 | psiconv_progress(config,lev+1,off,"Going to read a sheet ref"); |
358 | psiconv_progress(lev+2,off,"Going to read the offset encoding"); |
305 | psiconv_progress(config,lev+2,off,"Going to read the offset encoding"); |
359 | temp = psiconv_read_u16(buf,lev+2,off,&res); |
306 | temp = psiconv_read_u16(config,buf,lev+2,off,&res); |
360 | if (res) { |
307 | if (res) { |
361 | if (length) |
308 | if (length) |
362 | *length = 0; |
309 | *length = 0; |
363 | return res; |
310 | return res; |
364 | } |
311 | } |
365 | psiconv_debug(lev+2,off,"Encoded word: %04x",temp); |
312 | psiconv_debug(config,lev+2,off,"Encoded word: %04x",temp); |
366 | result->absolute = (temp & 0x4000)?psiconv_bool_true:psiconv_bool_false; |
313 | result->absolute = (temp & 0x4000)?psiconv_bool_true:psiconv_bool_false; |
367 | result->offset = (temp & 0x3fff) * ((temp & 0x8000)?-1:1); |
314 | result->offset = (temp & 0x3fff) * ((temp & 0x8000)?-1:1); |
368 | psiconv_debug(lev+2,off,"Reference: %s offset %d", |
315 | psiconv_debug(config,lev+2,off,"Reference: %s offset %d", |
369 | result->absolute?"absolute":"relative",result->offset); |
316 | result->absolute?"absolute":"relative",result->offset); |
370 | if (length) |
317 | if (length) |
371 | *length = 2; |
318 | *length = 2; |
372 | return 0; |
319 | return 0; |
373 | } |
320 | } |
374 | |
321 | |
375 | static int psiconv_parse_sheet_cell_reference(const psiconv_buffer buf,int lev, |
322 | static int psiconv_parse_sheet_cell_reference(const psiconv_config config, |
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323 | const psiconv_buffer buf,int lev, |
376 | psiconv_u32 off, int *length, |
324 | psiconv_u32 off, int *length, |
377 | psiconv_sheet_cell_reference_t *result) |
325 | psiconv_sheet_cell_reference_t *result) |
378 | { |
326 | { |
379 | int len = 0; |
327 | int len = 0; |
380 | int leng,res; |
328 | int leng,res; |
381 | psiconv_u8 temp; |
329 | psiconv_u8 temp; |
382 | |
330 | |
383 | psiconv_progress(lev+1,off+len,"Going to read a sheet cell reference"); |
331 | psiconv_progress(config,lev+1,off+len,"Going to read a sheet cell reference"); |
384 | psiconv_progress(lev+2,off+len,"Going to read the row reference"); |
332 | psiconv_progress(config,lev+2,off+len,"Going to read the row reference"); |
385 | if ((res = psiconv_parse_sheet_ref(buf,lev+2,off+len,&leng,&result->row))) |
333 | if ((res = psiconv_parse_sheet_ref(config,buf,lev+2,off+len,&leng,&result->row))) |
386 | goto ERROR; |
334 | goto ERROR; |
387 | len += leng; |
335 | len += leng; |
388 | psiconv_progress(lev+2,off+len,"Going to read the column reference"); |
336 | psiconv_progress(config,lev+2,off+len,"Going to read the column reference"); |
389 | if ((res = psiconv_parse_sheet_ref(buf,lev+2,off+len,&leng,&result->column))) |
337 | if ((res = psiconv_parse_sheet_ref(config,buf,lev+2,off+len,&leng,&result->column))) |
390 | goto ERROR; |
338 | goto ERROR; |
391 | len += leng; |
339 | len += leng; |
392 | |
340 | |
393 | psiconv_progress(lev+2,off+len, |
341 | psiconv_progress(config,lev+2,off+len, |
394 | "Going to read the trailing byte (%02x expected)",0); |
342 | "Going to read the trailing byte (%02x expected)",0); |
395 | temp = psiconv_read_u8(buf,lev+2,off+len,&res); |
343 | temp = psiconv_read_u8(config,buf,lev+2,off+len,&res); |
396 | if (res) |
344 | if (res) |
397 | goto ERROR; |
345 | goto ERROR; |
398 | if (temp != 0) { |
346 | if (temp != 0) { |
399 | psiconv_warn(lev+2,off+len,"Unknown byte in cell reference (ignored"); |
347 | psiconv_warn(config,lev+2,off+len,"Unknown byte in cell reference (ignored"); |
400 | psiconv_debug(lev+2,off+len,"Trailing byte: %02x",temp); |
348 | psiconv_debug(config,lev+2,off+len,"Trailing byte: %02x",temp); |
401 | } |
349 | } |
402 | len ++; |
350 | len ++; |
403 | psiconv_progress(lev,off+len-1, |
351 | psiconv_progress(config,lev,off+len-1, |
404 | "End of cell reference (total length: %08x)", len); |
352 | "End of cell reference (total length: %08x)", len); |
405 | if (length) |
353 | if (length) |
406 | *length = len; |
354 | *length = len; |
407 | return 0; |
355 | return 0; |
408 | ERROR: |
356 | ERROR: |
409 | if (length) |
357 | if (length) |
410 | *length = 0; |
358 | *length = 0; |
411 | return res; |
359 | return res; |
412 | } |
360 | } |
413 | |
361 | |
414 | static int psiconv_parse_sheet_cell_block(const psiconv_buffer buf,int lev, |
362 | static int psiconv_parse_sheet_cell_block(const psiconv_config config, |
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363 | const psiconv_buffer buf,int lev, |
415 | psiconv_u32 off, int *length, |
364 | psiconv_u32 off, int *length, |
416 | psiconv_sheet_cell_block_t *result) |
365 | psiconv_sheet_cell_block_t *result) |
417 | { |
366 | { |
418 | int len = 0; |
367 | int len = 0; |
419 | int leng,res; |
368 | int leng,res; |
420 | |
369 | |
421 | psiconv_progress(lev+1,off+len,"Going to read a sheet cell block"); |
370 | psiconv_progress(config,lev+1,off+len,"Going to read a sheet cell block"); |
422 | psiconv_progress(lev+2,off+len,"Going to read the first cell"); |
371 | psiconv_progress(config,lev+2,off+len,"Going to read the first cell"); |
423 | if ((res = psiconv_parse_sheet_cell_reference(buf,lev+2,off+len,&leng, |
372 | if ((res = psiconv_parse_sheet_cell_reference(config,buf,lev+2,off+len,&leng, |
424 | &result->first))) |
373 | &result->first))) |
425 | goto ERROR; |
374 | goto ERROR; |
426 | len += leng; |
375 | len += leng; |
427 | psiconv_progress(lev+2,off+len,"Going to read the last cell"); |
376 | psiconv_progress(config,lev+2,off+len,"Going to read the last cell"); |
428 | if ((res = psiconv_parse_sheet_cell_reference(buf,lev+2,off+len,&leng, |
377 | if ((res = psiconv_parse_sheet_cell_reference(config,buf,lev+2,off+len,&leng, |
429 | &result->last))) |
378 | &result->last))) |
430 | goto ERROR; |
379 | goto ERROR; |
431 | len += leng; |
380 | len += leng; |
432 | psiconv_progress(lev,off+len-1, |
381 | psiconv_progress(config,lev,off+len-1, |
433 | "End of cell block (total length: %08x)", len); |
382 | "End of cell block (total length: %08x)", len); |
434 | if (length) |
383 | if (length) |
435 | *length = len; |
384 | *length = len; |
436 | return 0; |
385 | return 0; |
437 | ERROR: |
386 | ERROR: |
438 | if (length) |
387 | if (length) |
439 | *length = 0; |
388 | *length = 0; |
440 | return res; |
389 | return res; |
441 | } |
390 | } |
442 | |
391 | |
443 | static int psiconv_parse_formula_element_list(const psiconv_buffer buf, int lev, |
392 | static int psiconv_parse_formula_element_list(const psiconv_config config, |
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393 | const psiconv_buffer buf, int lev, |
444 | psiconv_u32 off, int *length, |
394 | psiconv_u32 off, int *length, |
445 | psiconv_formula *result, |
395 | psiconv_formula *result, |
446 | psiconv_u32 maxlen) |
396 | psiconv_u32 maxlen) |
447 | { |
397 | { |
448 | int res=0; |
398 | int res=0; |
449 | int len=0; |
399 | int len=0; |
450 | int leng; |
400 | int leng; |
451 | int eof = 0; |
401 | int eof = 0; |
452 | psiconv_u8 marker; |
402 | psiconv_u8 marker,submarker,submarker2; |
453 | psiconv_formula_list formula_stack; |
403 | psiconv_formula_list formula_stack; |
454 | psiconv_formula formula,subformula1,subformula2,subformula3,subformula4; |
404 | psiconv_formula formula,subformula,subformula1,subformula2, |
|
|
405 | subformula3,subformula4; |
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|
406 | psiconv_u16 temp,nr_of_subs; |
455 | |
407 | |
456 | psiconv_progress(lev+1,off,"Going to read a formula element list"); |
408 | psiconv_progress(config,lev+1,off,"Going to read a formula element list"); |
457 | if (!(*result = malloc(sizeof(**result)))) |
409 | if (!(*result = malloc(sizeof(**result)))) |
458 | goto ERROR1; |
410 | goto ERROR1; |
459 | if (!(formula_stack = psiconv_list_new(sizeof(struct psiconv_formula_s)))) |
411 | if (!(formula_stack = psiconv_list_new(sizeof(struct psiconv_formula_s)))) |
460 | goto ERROR2; |
412 | goto ERROR2; |
461 | if (!(formula = malloc(sizeof(*formula)))) |
413 | if (!(formula = malloc(sizeof(*formula)))) |
… | |
… | |
474 | if (!(subformula4 = malloc(sizeof(*subformula4)))) |
426 | if (!(subformula4 = malloc(sizeof(*subformula4)))) |
475 | goto ERROR7; |
427 | goto ERROR7; |
476 | subformula4->type = psiconv_formula_unknown; |
428 | subformula4->type = psiconv_formula_unknown; |
477 | |
429 | |
478 | while (!eof && len+off < maxlen) { |
430 | while (!eof && len+off < maxlen) { |
479 | psiconv_progress(lev+3,off+len,"Going to read a formula item marker"); |
431 | psiconv_progress(config,lev+3,off+len,"Going to read a formula item marker"); |
480 | marker = psiconv_read_u8(buf,lev+2,off+len,&res); |
432 | marker = psiconv_read_u8(config,buf,lev+2,off+len,&res); |
481 | if (res) |
433 | if (res) |
482 | goto ERROR8; |
434 | goto ERROR8; |
483 | psiconv_debug(lev+3,off+len,"Marker: %02x (%s)",marker, |
435 | psiconv_debug(config,lev+3,off+len,"Marker: %02x (%s)",marker, |
484 | formula_elements[marker].name); |
436 | formula_elements[marker].name); |
485 | len ++; |
437 | len ++; |
486 | |
438 | |
487 | if (formula_elements[marker].formula_type == psiconv_formula_unknown) { |
439 | if (formula_elements[marker].formula_type == psiconv_formula_unknown) { |
488 | psiconv_warn(lev+3,off+len,"Unknown formula marker found!"); |
440 | psiconv_error(config,lev+3,off+len,"Unknown formula marker found!"); |
489 | goto ERROR8; |
441 | goto ERROR8; |
490 | } else if ((formula_elements[marker].formula_type == |
442 | } else if ((formula_elements[marker].formula_type == |
491 | psiconv_formula_mark_eof) || |
443 | psiconv_formula_mark_eof) || |
492 | (formula_elements[marker].formula_type == |
444 | (formula_elements[marker].formula_type == |
493 | psiconv_formula_mark_opend) || |
445 | psiconv_formula_mark_opend) || |
494 | (formula_elements[marker].formula_type == |
446 | (formula_elements[marker].formula_type == |
495 | psiconv_formula_mark_opsep)) { |
447 | psiconv_formula_mark_opsep)) { |
496 | len--; |
448 | len--; |
497 | psiconv_progress(lev+3,off+len,"End of this formula list"); |
449 | psiconv_progress(config,lev+3,off+len,"End of this formula list"); |
498 | eof = 1; |
450 | eof = 1; |
499 | } else if (formula_elements[marker].formula_type == |
451 | } else if (formula_elements[marker].formula_type == |
500 | psiconv_formula_dat_int) { |
452 | psiconv_formula_dat_int) { |
501 | psiconv_progress(lev+3,off+len,"Next item: an integer"); |
453 | psiconv_progress(config,lev+3,off+len,"Next item: an integer"); |
502 | formula->data.dat_int = psiconv_read_u32(buf,lev+2,off+len,&res); |
454 | formula->data.dat_int = psiconv_read_u32(config,buf,lev+2,off+len,&res); |
503 | if (res) |
455 | if (res) |
504 | goto ERROR8; |
456 | goto ERROR8; |
505 | formula->type = formula_elements[marker].formula_type; |
457 | formula->type = formula_elements[marker].formula_type; |
506 | psiconv_debug(lev+3,off+len,"Value: %08x",formula->data.dat_int); |
458 | psiconv_debug(config,lev+3,off+len,"Value: %08x",formula->data.dat_int); |
507 | len += 4; |
459 | len += 4; |
508 | if ((res = psiconv_list_add(formula_stack,formula))) |
460 | if ((res = psiconv_list_add(formula_stack,formula))) |
509 | goto ERROR8; |
461 | goto ERROR8; |
510 | formula->type = psiconv_formula_unknown; |
462 | formula->type = psiconv_formula_unknown; |
511 | } else if (formula_elements[marker].formula_type == |
463 | } else if (formula_elements[marker].formula_type == |
512 | psiconv_formula_dat_float) { |
464 | psiconv_formula_dat_float) { |
513 | psiconv_progress(lev+3,off+len,"Next item: a float"); |
465 | psiconv_progress(config,lev+3,off+len,"Next item: a float"); |
514 | formula->data.dat_float = psiconv_read_float(buf,lev+2,off+len,&leng, |
466 | formula->data.dat_float = psiconv_read_float(config,buf,lev+2,off+len,&leng, |
515 | &res); |
467 | &res); |
516 | if (res) |
468 | if (res) |
517 | goto ERROR8; |
469 | goto ERROR8; |
518 | formula->type = formula_elements[marker].formula_type; |
470 | formula->type = formula_elements[marker].formula_type; |
519 | psiconv_debug(lev+3,off+len,"Value: %f",formula->data.dat_float); |
471 | psiconv_debug(config,lev+3,off+len,"Value: %f",formula->data.dat_float); |
520 | len += leng; |
472 | len += leng; |
521 | if ((res = psiconv_list_add(formula_stack,formula))) |
473 | if ((res = psiconv_list_add(formula_stack,formula))) |
522 | goto ERROR8; |
474 | goto ERROR8; |
523 | formula->type = psiconv_formula_unknown; |
475 | formula->type = psiconv_formula_unknown; |
524 | } else if (formula_elements[marker].formula_type == |
476 | } else if (formula_elements[marker].formula_type == |
525 | psiconv_formula_dat_cellref) { |
477 | psiconv_formula_dat_cellref) { |
526 | psiconv_progress(lev+3,off+len,"Next item: a cell reference"); |
478 | psiconv_progress(config,lev+3,off+len,"Next item: a cell reference"); |
527 | if ((res = psiconv_parse_sheet_cell_reference(buf,lev+2,off+len,&leng, |
479 | if ((res = psiconv_parse_sheet_cell_reference(config,buf,lev+2,off+len,&leng, |
528 | &formula->data.dat_cellref))) |
480 | &formula->data.dat_cellref))) |
529 | goto ERROR8; |
481 | goto ERROR8; |
530 | formula->type = formula_elements[marker].formula_type; |
482 | formula->type = formula_elements[marker].formula_type; |
531 | len += leng; |
483 | len += leng; |
532 | if ((res = psiconv_list_add(formula_stack,formula))) |
484 | if ((res = psiconv_list_add(formula_stack,formula))) |
533 | goto ERROR8; |
485 | goto ERROR8; |
534 | formula->type = psiconv_formula_unknown; |
486 | formula->type = psiconv_formula_unknown; |
535 | } else if (formula_elements[marker].formula_type == |
487 | } else if ((formula_elements[marker].formula_type == |
|
|
488 | psiconv_formula_dat_cellblock) || |
|
|
489 | (formula_elements[marker].formula_type == |
536 | psiconv_formula_dat_cellblock) { |
490 | psiconv_formula_dat_vcellblock)) { |
537 | psiconv_progress(lev+3,off+len,"Next item: a cell block"); |
491 | psiconv_progress(config,lev+3,off+len,"Next item: a cell block"); |
538 | if ((res = psiconv_parse_sheet_cell_block(buf,lev+2,off+len,&leng, |
492 | if ((res = psiconv_parse_sheet_cell_block(config,buf,lev+2,off+len,&leng, |
539 | &formula->data.dat_cellblock))) |
493 | &formula->data.dat_cellblock))) |
540 | goto ERROR8; |
494 | goto ERROR8; |
541 | formula->type = formula_elements[marker].formula_type; |
495 | formula->type = formula_elements[marker].formula_type; |
542 | len += leng; |
496 | len += leng; |
543 | if ((res = psiconv_list_add(formula_stack,formula))) |
497 | if ((res = psiconv_list_add(formula_stack,formula))) |
544 | goto ERROR8; |
498 | goto ERROR8; |
545 | formula->type = psiconv_formula_unknown; |
499 | formula->type = psiconv_formula_unknown; |
546 | } else if (formula_elements[marker].formula_type == |
500 | } else if (formula_elements[marker].formula_type == |
547 | psiconv_formula_dat_string) { |
501 | psiconv_formula_dat_string) { |
548 | psiconv_progress(lev+3,off+len,"Next item: a string"); |
502 | psiconv_progress(config,lev+3,off+len,"Next item: a string"); |
549 | formula->data.dat_string = |
503 | formula->data.dat_string = |
550 | psiconv_read_sheet_string(buf,lev+2,off+len,&leng,&res); |
504 | psiconv_read_short_string(config,buf,lev+2,off+len,&leng,&res); |
551 | if (res) |
505 | if (res) |
552 | goto ERROR8; |
506 | goto ERROR8; |
553 | formula->type = formula_elements[marker].formula_type; |
507 | formula->type = formula_elements[marker].formula_type; |
554 | len += leng; |
508 | len += leng; |
555 | if ((res = psiconv_list_add(formula_stack,formula))) |
509 | if ((res = psiconv_list_add(formula_stack,formula))) |
556 | goto ERROR8; |
510 | goto ERROR8; |
557 | formula->type = psiconv_formula_unknown; |
511 | formula->type = psiconv_formula_unknown; |
558 | } else if ((formula_elements[marker].formula_type == |
512 | } else if ((formula_elements[marker].formula_type == |
559 | psiconv_formula_dat_var) || |
513 | psiconv_formula_dat_var)) { |
560 | (formula_elements[marker].formula_type == |
514 | psiconv_progress(config,lev+3,off+len,"Next item: a variable reference"); |
561 | psiconv_formula_dat_vcellblock)) { |
515 | formula->data.dat_variable = psiconv_read_u32(config,buf,lev+2,off+len,&res); |
562 | psiconv_warn(lev+3,off+len,"Not yet supported formula mark!"); |
516 | if (res) |
563 | goto ERROR8; |
517 | goto ERROR8; |
|
|
518 | formula->type = formula_elements[marker].formula_type; |
|
|
519 | len += 4; |
|
|
520 | if ((res = psiconv_list_add(formula_stack,formula))) |
|
|
521 | goto ERROR8; |
|
|
522 | formula->type = psiconv_formula_unknown; |
564 | } else if (formula_elements[marker].number_of_args == -1) { |
523 | } else if (formula_elements[marker].number_of_args == -1) { |
565 | psiconv_warn(lev+3,off+len,"Vararg functions not yet supported!"); |
524 | psiconv_progress(config,lev+3,off+len,"Going to parse a vararg function"); |
|
|
525 | if (!(formula->data.fun_operands = |
|
|
526 | psiconv_list_new(sizeof(*formula)))) |
|
|
527 | goto ERROR8; |
|
|
528 | formula->type = formula_elements[marker].formula_type; |
|
|
529 | nr_of_subs = 0; |
|
|
530 | do { |
|
|
531 | nr_of_subs ++; |
|
|
532 | psiconv_progress(config,lev+4,off+len,"Going to read vararg argument %d", |
|
|
533 | nr_of_subs); |
|
|
534 | if ((res = psiconv_parse_formula_element_list(config,buf,lev+4,off+len,&leng, |
|
|
535 | &subformula,maxlen))) |
|
|
536 | goto ERROR8; |
|
|
537 | len += leng; |
|
|
538 | if ((res = psiconv_list_add(formula->data.fun_operands,subformula))) { |
|
|
539 | psiconv_free_formula(subformula); |
|
|
540 | goto ERROR8; |
|
|
541 | } |
|
|
542 | free(subformula); |
|
|
543 | psiconv_progress(config,lev+4,off+len,"Going to read the next marker"); |
|
|
544 | submarker = psiconv_read_u8(config,buf,lev+4,off+len,&res); |
|
|
545 | len ++; |
|
|
546 | if (res) |
|
|
547 | goto ERROR8; |
|
|
548 | submarker2 = psiconv_read_u8(config,buf,lev+4,off+len,&res); |
|
|
549 | if (res) |
|
|
550 | goto ERROR8; |
|
|
551 | } while ((formula_elements[submarker].formula_type |
|
|
552 | == psiconv_formula_mark_opsep) && |
|
|
553 | (formula_elements[submarker2].formula_type |
|
|
554 | != psiconv_formula_mark_opend)); |
|
|
555 | if ((formula_elements[submarker].formula_type == |
|
|
556 | psiconv_formula_mark_opsep) && |
|
|
557 | (formula_elements[submarker2].formula_type == |
|
|
558 | psiconv_formula_mark_opend)) { |
|
|
559 | submarker=submarker2; |
|
|
560 | len++; |
|
|
561 | } |
|
|
562 | if (formula_elements[submarker].formula_type |
|
|
563 | != psiconv_formula_mark_opend) { |
|
|
564 | psiconv_error(config,lev+3,off+len,"Formula corrupted!"); |
|
|
565 | psiconv_debug(config,lev+3,off+len,"Found unexpected marker %02x",submarker); |
566 | goto ERROR8; |
566 | goto ERROR8; |
|
|
567 | } |
|
|
568 | psiconv_progress(config,lev+3,off+len,"Going to read the repeated marker %02x", |
|
|
569 | marker); |
|
|
570 | submarker = psiconv_read_u8(config,buf,lev+3,off+len,&res); |
|
|
571 | if (res) |
|
|
572 | goto ERROR8; |
|
|
573 | if (submarker != marker) { |
|
|
574 | psiconv_error(config,lev+3,off+len,"Formula corrupted!"); |
|
|
575 | psiconv_debug(config,lev+3,off+len,"Expected marker %02x, found %02x", |
|
|
576 | marker,submarker); |
|
|
577 | goto ERROR8; |
|
|
578 | } |
|
|
579 | len++; |
|
|
580 | psiconv_progress(config,lev+3,off+len, |
|
|
581 | "Going to read the number of arguments (%d expected)", |
|
|
582 | nr_of_subs); |
|
|
583 | temp = psiconv_read_u16(config,buf,lev+3,off+len,&res); |
|
|
584 | if (res) |
|
|
585 | goto ERROR8; |
|
|
586 | if (temp != nr_of_subs) { |
|
|
587 | psiconv_error(config,lev+3,off+len,"Formula corrupted!"); |
|
|
588 | psiconv_debug(config,lev+3,off+len, |
|
|
589 | "Read %d arguments, but formula says there are %d", |
|
|
590 | nr_of_subs,temp); |
|
|
591 | goto ERROR8; |
|
|
592 | } |
|
|
593 | len += 2; |
|
|
594 | if ((res = psiconv_list_add(formula_stack,formula))) |
|
|
595 | goto ERROR8; |
|
|
596 | formula->type = psiconv_formula_unknown; |
567 | } else { |
597 | } else { |
568 | if (formula_elements[marker].number_of_args > 0) |
598 | if (formula_elements[marker].number_of_args > 0) |
569 | if ((res = psiconv_list_pop(formula_stack,subformula1))) |
599 | if ((res = psiconv_list_pop(formula_stack,subformula1))) |
570 | goto ERROR8; |
600 | goto ERROR8; |
571 | if (formula_elements[marker].number_of_args > 1) |
601 | if (formula_elements[marker].number_of_args > 1) |
… | |
… | |
598 | subformula4->type = subformula3->type = subformula2->type = |
628 | subformula4->type = subformula3->type = subformula2->type = |
599 | subformula1->type = formula->type = psiconv_formula_unknown; |
629 | subformula1->type = formula->type = psiconv_formula_unknown; |
600 | } |
630 | } |
601 | } |
631 | } |
602 | if ((len+off > maxlen) || !eof) { |
632 | if ((len+off > maxlen) || !eof) { |
603 | psiconv_warn(lev+2,off+len,"Formula corrupted!"); |
633 | psiconv_error(config,lev+2,off+len,"Formula corrupted!"); |
604 | psiconv_debug(lev+2,off+len,"Expected end: %04x, found end: %04x", |
634 | psiconv_debug(config,lev+2,off+len,"Expected end: %04x, found end: %04x", |
605 | maxlen,len+off); |
635 | maxlen,len+off); |
606 | goto ERROR8; |
636 | goto ERROR8; |
607 | } |
637 | } |
608 | if ((psiconv_list_length(formula_stack)) != 1) { |
638 | if ((psiconv_list_length(formula_stack)) != 1) { |
609 | psiconv_warn(lev+2,off+len,"Formula corrupted!"); |
639 | psiconv_error(config,lev+2,off+len,"Formula corrupted!"); |
610 | psiconv_debug(lev+2,off+len,"More than one item left on the stack (%d)", |
640 | psiconv_debug(config,lev+2,off+len,"More than one item left on the stack (%d)", |
611 | psiconv_list_length(formula_stack)); |
641 | psiconv_list_length(formula_stack)); |
612 | goto ERROR8; |
642 | goto ERROR8; |
613 | } |
643 | } |
614 | if ((res = psiconv_list_pop(formula_stack,*result))) |
644 | if ((res = psiconv_list_pop(formula_stack,*result))) |
615 | goto ERROR8; |
645 | goto ERROR8; |
… | |
… | |
617 | free(formula); |
647 | free(formula); |
618 | |
648 | |
619 | if (length) |
649 | if (length) |
620 | *length = len; |
650 | *length = len; |
621 | |
651 | |
622 | psiconv_progress(lev,off+len-1, |
652 | psiconv_progress(config,lev,off+len-1, |
623 | "End of formula element list (total length: %08x)", len); |
653 | "End of formula element list (total length: %08x)", len); |
624 | return 0; |
654 | return 0; |
625 | |
655 | |
626 | ERROR8: |
656 | ERROR8: |
627 | psiconv_free_formula(subformula4); |
657 | psiconv_free_formula(subformula4); |
… | |
… | |
636 | ERROR3: |
666 | ERROR3: |
637 | psiconv_free_formula_list(formula_stack); |
667 | psiconv_free_formula_list(formula_stack); |
638 | ERROR2: |
668 | ERROR2: |
639 | free (*result); |
669 | free (*result); |
640 | ERROR1: |
670 | ERROR1: |
641 | psiconv_warn(lev+1,off,"Reading of formula element list failed"); |
671 | psiconv_error(config,lev+1,off,"Reading of formula element list failed"); |
642 | if (length) |
672 | if (length) |
643 | *length = 0; |
673 | *length = 0; |
644 | if (!res) |
674 | if (!res) |
645 | return -PSICONV_E_NOMEM; |
675 | return -PSICONV_E_NOMEM; |
646 | else |
676 | else |
… | |
… | |
648 | } |
678 | } |
649 | |
679 | |
650 | |
680 | |
651 | |
681 | |
652 | |
682 | |
653 | int psiconv_parse_formula(const psiconv_buffer buf, int lev, |
683 | int psiconv_parse_formula(const psiconv_config config, |
|
|
684 | const psiconv_buffer buf, int lev, |
654 | psiconv_u32 off, int *length, |
685 | psiconv_u32 off, int *length, |
655 | psiconv_formula *result) |
686 | psiconv_formula *result) |
656 | { |
687 | { |
657 | int res=0; |
688 | int res=0; |
658 | int len=0; |
689 | int len=0; |
659 | int leng; |
690 | int leng; |
660 | psiconv_u32 bytelen,formula_end; |
691 | psiconv_u32 bytelen,formula_end; |
661 | psiconv_u8 temp; |
692 | psiconv_u8 temp; |
662 | |
693 | |
663 | psiconv_progress(lev+1,off,"Going to read a formula"); |
694 | psiconv_progress(config,lev+1,off,"Going to read a formula"); |
664 | |
695 | |
665 | psiconv_progress(lev+2,off+len, |
696 | psiconv_progress(config,lev+2,off+len, |
666 | "Going to read the formula byte length"); |
697 | "Going to read the formula byte length"); |
667 | bytelen = psiconv_read_S(buf,lev+2,off+len,&leng,&res); |
698 | bytelen = psiconv_read_S(config,buf,lev+2,off+len,&leng,&res); |
668 | if (res) |
699 | if (res) |
669 | goto ERROR1; |
700 | goto ERROR1; |
670 | psiconv_debug(lev+2,off+len,"Formula byte length: %d",bytelen); |
701 | psiconv_debug(config,lev+2,off+len,"Formula byte length: %d",bytelen); |
671 | len += leng; |
702 | len += leng; |
672 | bytelen += len; |
703 | bytelen += len; |
673 | formula_end = off + bytelen; |
704 | formula_end = off + bytelen; |
674 | |
705 | |
675 | psiconv_progress(lev+2,off+len,"Going to read the formula elements list"); |
706 | psiconv_progress(config,lev+2,off+len,"Going to read the formula elements list"); |
676 | if ((res = psiconv_parse_formula_element_list(buf,lev+2,off+len,&leng, |
707 | if ((res = psiconv_parse_formula_element_list(config,buf,lev+2,off+len,&leng, |
677 | result,formula_end))) |
708 | result,formula_end))) |
678 | goto ERROR1; |
709 | goto ERROR1; |
679 | len += leng; |
710 | len += leng; |
680 | |
711 | |
681 | psiconv_progress(lev+2,off+len,"Going to read the eof marker"); |
712 | psiconv_progress(config,lev+2,off+len,"Going to read the eof marker"); |
682 | temp = psiconv_read_u8(buf,lev+2,off+len,&res); |
713 | temp = psiconv_read_u8(config,buf,lev+2,off+len,&res); |
683 | if (res) |
714 | if (res) |
684 | goto ERROR2; |
715 | goto ERROR2; |
685 | if (formula_elements[temp].formula_type != psiconv_formula_mark_eof) { |
716 | if (formula_elements[temp].formula_type != psiconv_formula_mark_eof) { |
686 | psiconv_warn(lev+2,off+len,"Formula corrupted!"); |
717 | psiconv_error(config,lev+2,off+len,"Formula corrupted!"); |
687 | psiconv_debug(lev+2,off+len,"Expected marker: %02x, found byte: %02x", |
718 | psiconv_debug(config,lev+2,off+len,"Expected marker: %02x, found byte: %02x", |
688 | 0x15,temp); |
719 | 0x15,temp); |
689 | goto ERROR2; |
720 | goto ERROR2; |
690 | } |
721 | } |
691 | len ++; |
722 | len ++; |
692 | |
723 | |
693 | if (off+len != formula_end) { |
724 | if (off+len != formula_end) { |
694 | psiconv_warn(lev+2,off+len,"Formula corrupted!"); |
725 | psiconv_error(config,lev+2,off+len,"Formula corrupted!"); |
695 | psiconv_debug(lev+2,off+len,"Expected end: %04x, found end: %04x", |
726 | psiconv_debug(config,lev+2,off+len,"Expected end: %04x, found end: %04x", |
696 | formula_end,len+off); |
727 | formula_end,len+off); |
697 | goto ERROR2; |
728 | goto ERROR2; |
698 | } |
729 | } |
699 | |
730 | |
700 | if (length) |
731 | if (length) |
701 | *length = len; |
732 | *length = len; |
702 | |
733 | |
703 | psiconv_progress(lev,off+len-1, |
734 | psiconv_progress(config,lev,off+len-1, |
704 | "End of formula (total length: %08x)", len); |
735 | "End of formula (total length: %08x)", len); |
705 | return 0; |
736 | return 0; |
706 | |
737 | |
707 | ERROR2: |
738 | ERROR2: |
708 | psiconv_free_formula(*result); |
739 | psiconv_free_formula(*result); |
709 | ERROR1: |
740 | ERROR1: |
710 | psiconv_warn(lev+1,off,"Reading of formula failed"); |
741 | psiconv_error(config,lev+1,off,"Reading of formula failed"); |
711 | if (length) |
742 | if (length) |
712 | *length = 0; |
743 | *length = 0; |
713 | if (!res) |
744 | if (!res) |
714 | return -PSICONV_E_NOMEM; |
745 | return -PSICONV_E_NOMEM; |
715 | else |
746 | else |