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) 2001-2014 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" |
|
|
27 | |
|
|
28 | #ifdef DMALLOC |
|
|
29 | #include <dmalloc.h> |
|
|
30 | #endif |
|
|
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; |
… | |
… | |
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*"}}; |
294 | {psiconv_formula_unknown,0,"*UNKNOWN*"}}; |
290 | |
295 | |
291 | static int psiconv_parse_sheet_ref(const psiconv_buffer buf,int lev, |
296 | static int psiconv_parse_sheet_ref(const psiconv_config config, |
|
|
297 | const psiconv_buffer buf,int lev, |
292 | psiconv_u32 off, int *length, |
298 | psiconv_u32 off, int *length, |
293 | psiconv_sheet_ref_t *result) |
299 | psiconv_sheet_ref_t *result) |
294 | { |
300 | { |
295 | int res; |
301 | int res; |
296 | psiconv_u16 temp; |
302 | psiconv_u16 temp; |
297 | |
303 | |
298 | psiconv_progress(lev+1,off,"Going to read a sheet ref"); |
304 | psiconv_progress(config,lev+1,off,"Going to read a sheet ref"); |
299 | psiconv_progress(lev+2,off,"Going to read the offset encoding"); |
305 | psiconv_progress(config,lev+2,off,"Going to read the offset encoding"); |
300 | temp = psiconv_read_u16(buf,lev+2,off,&res); |
306 | temp = psiconv_read_u16(config,buf,lev+2,off,&res); |
301 | if (res) { |
307 | if (res) { |
302 | if (length) |
308 | if (length) |
303 | *length = 0; |
309 | *length = 0; |
304 | return res; |
310 | return res; |
305 | } |
311 | } |
306 | psiconv_debug(lev+2,off,"Encoded word: %04x",temp); |
312 | psiconv_debug(config,lev+2,off,"Encoded word: %04x",temp); |
307 | result->absolute = (temp & 0x4000)?psiconv_bool_true:psiconv_bool_false; |
313 | result->absolute = (temp & 0x4000)?psiconv_bool_true:psiconv_bool_false; |
308 | result->offset = (temp & 0x3fff) * ((temp & 0x8000)?-1:1); |
314 | result->offset = (temp & 0x3fff) * ((temp & 0x8000)?-1:1); |
309 | psiconv_debug(lev+2,off,"Reference: %s offset %d", |
315 | psiconv_debug(config,lev+2,off,"Reference: %s offset %d", |
310 | result->absolute?"absolute":"relative",result->offset); |
316 | result->absolute?"absolute":"relative",result->offset); |
311 | if (length) |
317 | if (length) |
312 | *length = 2; |
318 | *length = 2; |
313 | return 0; |
319 | return 0; |
314 | } |
320 | } |
315 | |
321 | |
316 | 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, |
|
|
323 | const psiconv_buffer buf,int lev, |
317 | psiconv_u32 off, int *length, |
324 | psiconv_u32 off, int *length, |
318 | psiconv_sheet_cell_reference_t *result) |
325 | psiconv_sheet_cell_reference_t *result) |
319 | { |
326 | { |
320 | int len = 0; |
327 | int len = 0; |
321 | int leng,res; |
328 | int leng,res; |
322 | psiconv_u8 temp; |
329 | psiconv_u8 temp; |
323 | |
330 | |
324 | 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"); |
325 | 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"); |
326 | 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))) |
327 | goto ERROR; |
334 | goto ERROR; |
328 | len += leng; |
335 | len += leng; |
329 | 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"); |
330 | 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))) |
331 | goto ERROR; |
338 | goto ERROR; |
332 | len += leng; |
339 | len += leng; |
333 | |
340 | |
334 | psiconv_progress(lev+2,off+len, |
341 | psiconv_progress(config,lev+2,off+len, |
335 | "Going to read the trailing byte (%02x expected)",0); |
342 | "Going to read the trailing byte (%02x expected)",0); |
336 | temp = psiconv_read_u8(buf,lev+2,off+len,&res); |
343 | temp = psiconv_read_u8(config,buf,lev+2,off+len,&res); |
337 | if (res) |
344 | if (res) |
338 | goto ERROR; |
345 | goto ERROR; |
339 | if (temp != 0) { |
346 | if (temp != 0) { |
340 | 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"); |
341 | psiconv_debug(lev+2,off+len,"Trailing byte: %02x",temp); |
348 | psiconv_debug(config,lev+2,off+len,"Trailing byte: %02x",temp); |
342 | } |
349 | } |
343 | len ++; |
350 | len ++; |
344 | psiconv_progress(lev,off+len-1, |
351 | psiconv_progress(config,lev,off+len-1, |
345 | "End of cell reference (total length: %08x)", len); |
352 | "End of cell reference (total length: %08x)", len); |
346 | if (length) |
353 | if (length) |
347 | *length = len; |
354 | *length = len; |
348 | return 0; |
355 | return 0; |
349 | ERROR: |
356 | ERROR: |
350 | if (length) |
357 | if (length) |
351 | *length = 0; |
358 | *length = 0; |
352 | return res; |
359 | return res; |
353 | } |
360 | } |
354 | |
361 | |
355 | 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, |
|
|
363 | const psiconv_buffer buf,int lev, |
356 | psiconv_u32 off, int *length, |
364 | psiconv_u32 off, int *length, |
357 | psiconv_sheet_cell_block_t *result) |
365 | psiconv_sheet_cell_block_t *result) |
358 | { |
366 | { |
359 | int len = 0; |
367 | int len = 0; |
360 | int leng,res; |
368 | int leng,res; |
361 | |
369 | |
362 | 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"); |
363 | 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"); |
364 | 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, |
365 | &result->first))) |
373 | &result->first))) |
366 | goto ERROR; |
374 | goto ERROR; |
367 | len += leng; |
375 | len += leng; |
368 | 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"); |
369 | 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, |
370 | &result->last))) |
378 | &result->last))) |
371 | goto ERROR; |
379 | goto ERROR; |
372 | len += leng; |
380 | len += leng; |
373 | psiconv_progress(lev,off+len-1, |
381 | psiconv_progress(config,lev,off+len-1, |
374 | "End of cell block (total length: %08x)", len); |
382 | "End of cell block (total length: %08x)", len); |
375 | if (length) |
383 | if (length) |
376 | *length = len; |
384 | *length = len; |
377 | return 0; |
385 | return 0; |
378 | ERROR: |
386 | ERROR: |
379 | if (length) |
387 | if (length) |
380 | *length = 0; |
388 | *length = 0; |
381 | return res; |
389 | return res; |
382 | } |
390 | } |
383 | |
391 | |
384 | 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, |
|
|
393 | const psiconv_buffer buf, int lev, |
385 | psiconv_u32 off, int *length, |
394 | psiconv_u32 off, int *length, |
386 | psiconv_formula *result, |
395 | psiconv_formula *result, |
387 | psiconv_u32 maxlen) |
396 | psiconv_u32 maxlen) |
388 | { |
397 | { |
389 | int res=0; |
398 | int res=0; |
390 | int len=0; |
399 | int len=0; |
391 | int leng; |
400 | int leng; |
392 | int eof = 0; |
401 | int eof = 0; |
393 | psiconv_u8 marker,submarker; |
402 | psiconv_u8 marker,submarker,submarker2; |
394 | psiconv_formula_list formula_stack; |
403 | psiconv_formula_list formula_stack; |
395 | psiconv_formula formula,subformula,subformula1,subformula2, |
404 | psiconv_formula formula,subformula,subformula1,subformula2, |
396 | subformula3,subformula4; |
405 | subformula3,subformula4; |
397 | psiconv_u16 temp,nr_of_subs; |
406 | psiconv_u16 temp,nr_of_subs; |
398 | |
407 | |
399 | 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"); |
400 | if (!(*result = malloc(sizeof(**result)))) |
409 | if (!(*result = malloc(sizeof(**result)))) |
401 | goto ERROR1; |
410 | goto ERROR1; |
402 | if (!(formula_stack = psiconv_list_new(sizeof(struct psiconv_formula_s)))) |
411 | if (!(formula_stack = psiconv_list_new(sizeof(struct psiconv_formula_s)))) |
403 | goto ERROR2; |
412 | goto ERROR2; |
404 | if (!(formula = malloc(sizeof(*formula)))) |
413 | if (!(formula = malloc(sizeof(*formula)))) |
… | |
… | |
417 | if (!(subformula4 = malloc(sizeof(*subformula4)))) |
426 | if (!(subformula4 = malloc(sizeof(*subformula4)))) |
418 | goto ERROR7; |
427 | goto ERROR7; |
419 | subformula4->type = psiconv_formula_unknown; |
428 | subformula4->type = psiconv_formula_unknown; |
420 | |
429 | |
421 | while (!eof && len+off < maxlen) { |
430 | while (!eof && len+off < maxlen) { |
422 | 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"); |
423 | marker = psiconv_read_u8(buf,lev+2,off+len,&res); |
432 | marker = psiconv_read_u8(config,buf,lev+2,off+len,&res); |
424 | if (res) |
433 | if (res) |
425 | goto ERROR8; |
434 | goto ERROR8; |
426 | psiconv_debug(lev+3,off+len,"Marker: %02x (%s)",marker, |
435 | psiconv_debug(config,lev+3,off+len,"Marker: %02x (%s)",marker, |
427 | formula_elements[marker].name); |
436 | formula_elements[marker].name); |
428 | len ++; |
437 | len ++; |
429 | |
438 | |
430 | if (formula_elements[marker].formula_type == psiconv_formula_unknown) { |
439 | if (formula_elements[marker].formula_type == psiconv_formula_unknown) { |
431 | psiconv_warn(lev+3,off+len,"Unknown formula marker found!"); |
440 | psiconv_error(config,lev+3,off+len,"Unknown formula marker found!"); |
432 | goto ERROR8; |
441 | goto ERROR8; |
433 | } else if ((formula_elements[marker].formula_type == |
442 | } else if ((formula_elements[marker].formula_type == |
434 | psiconv_formula_mark_eof) || |
443 | psiconv_formula_mark_eof) || |
435 | (formula_elements[marker].formula_type == |
444 | (formula_elements[marker].formula_type == |
436 | psiconv_formula_mark_opend) || |
445 | psiconv_formula_mark_opend) || |
437 | (formula_elements[marker].formula_type == |
446 | (formula_elements[marker].formula_type == |
438 | psiconv_formula_mark_opsep)) { |
447 | psiconv_formula_mark_opsep)) { |
439 | len--; |
448 | len--; |
440 | psiconv_progress(lev+3,off+len,"End of this formula list"); |
449 | psiconv_progress(config,lev+3,off+len,"End of this formula list"); |
441 | eof = 1; |
450 | eof = 1; |
442 | } else if (formula_elements[marker].formula_type == |
451 | } else if (formula_elements[marker].formula_type == |
443 | psiconv_formula_dat_int) { |
452 | psiconv_formula_dat_int) { |
444 | psiconv_progress(lev+3,off+len,"Next item: an integer"); |
453 | psiconv_progress(config,lev+3,off+len,"Next item: an integer"); |
445 | 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); |
446 | if (res) |
455 | if (res) |
447 | goto ERROR8; |
456 | goto ERROR8; |
448 | formula->type = formula_elements[marker].formula_type; |
457 | formula->type = formula_elements[marker].formula_type; |
449 | 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); |
450 | len += 4; |
459 | len += 4; |
451 | if ((res = psiconv_list_add(formula_stack,formula))) |
460 | if ((res = psiconv_list_add(formula_stack,formula))) |
452 | goto ERROR8; |
461 | goto ERROR8; |
453 | formula->type = psiconv_formula_unknown; |
462 | formula->type = psiconv_formula_unknown; |
454 | } else if (formula_elements[marker].formula_type == |
463 | } else if (formula_elements[marker].formula_type == |
455 | psiconv_formula_dat_float) { |
464 | psiconv_formula_dat_float) { |
456 | psiconv_progress(lev+3,off+len,"Next item: a float"); |
465 | psiconv_progress(config,lev+3,off+len,"Next item: a float"); |
457 | 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, |
458 | &res); |
467 | &res); |
459 | if (res) |
468 | if (res) |
460 | goto ERROR8; |
469 | goto ERROR8; |
461 | formula->type = formula_elements[marker].formula_type; |
470 | formula->type = formula_elements[marker].formula_type; |
462 | 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); |
463 | len += leng; |
472 | len += leng; |
464 | if ((res = psiconv_list_add(formula_stack,formula))) |
473 | if ((res = psiconv_list_add(formula_stack,formula))) |
465 | goto ERROR8; |
474 | goto ERROR8; |
466 | formula->type = psiconv_formula_unknown; |
475 | formula->type = psiconv_formula_unknown; |
467 | } else if (formula_elements[marker].formula_type == |
476 | } else if (formula_elements[marker].formula_type == |
468 | psiconv_formula_dat_cellref) { |
477 | psiconv_formula_dat_cellref) { |
469 | psiconv_progress(lev+3,off+len,"Next item: a cell reference"); |
478 | psiconv_progress(config,lev+3,off+len,"Next item: a cell reference"); |
470 | 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, |
471 | &formula->data.dat_cellref))) |
480 | &formula->data.dat_cellref))) |
472 | goto ERROR8; |
481 | goto ERROR8; |
473 | formula->type = formula_elements[marker].formula_type; |
482 | formula->type = formula_elements[marker].formula_type; |
474 | len += leng; |
483 | len += leng; |
475 | if ((res = psiconv_list_add(formula_stack,formula))) |
484 | if ((res = psiconv_list_add(formula_stack,formula))) |
… | |
… | |
477 | formula->type = psiconv_formula_unknown; |
486 | formula->type = psiconv_formula_unknown; |
478 | } else if ((formula_elements[marker].formula_type == |
487 | } else if ((formula_elements[marker].formula_type == |
479 | psiconv_formula_dat_cellblock) || |
488 | psiconv_formula_dat_cellblock) || |
480 | (formula_elements[marker].formula_type == |
489 | (formula_elements[marker].formula_type == |
481 | psiconv_formula_dat_vcellblock)) { |
490 | psiconv_formula_dat_vcellblock)) { |
482 | psiconv_progress(lev+3,off+len,"Next item: a cell block"); |
491 | psiconv_progress(config,lev+3,off+len,"Next item: a cell block"); |
483 | 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, |
484 | &formula->data.dat_cellblock))) |
493 | &formula->data.dat_cellblock))) |
485 | goto ERROR8; |
494 | goto ERROR8; |
486 | formula->type = formula_elements[marker].formula_type; |
495 | formula->type = formula_elements[marker].formula_type; |
487 | len += leng; |
496 | len += leng; |
488 | if ((res = psiconv_list_add(formula_stack,formula))) |
497 | if ((res = psiconv_list_add(formula_stack,formula))) |
489 | goto ERROR8; |
498 | goto ERROR8; |
490 | formula->type = psiconv_formula_unknown; |
499 | formula->type = psiconv_formula_unknown; |
491 | } else if (formula_elements[marker].formula_type == |
500 | } else if (formula_elements[marker].formula_type == |
492 | psiconv_formula_dat_string) { |
501 | psiconv_formula_dat_string) { |
493 | psiconv_progress(lev+3,off+len,"Next item: a string"); |
502 | psiconv_progress(config,lev+3,off+len,"Next item: a string"); |
494 | formula->data.dat_string = |
503 | formula->data.dat_string = |
495 | psiconv_read_short_string(buf,lev+2,off+len,&leng,&res); |
504 | psiconv_read_short_string(config,buf,lev+2,off+len,&leng,&res); |
496 | if (res) |
505 | if (res) |
497 | goto ERROR8; |
506 | goto ERROR8; |
498 | formula->type = formula_elements[marker].formula_type; |
507 | formula->type = formula_elements[marker].formula_type; |
499 | len += leng; |
508 | len += leng; |
500 | if ((res = psiconv_list_add(formula_stack,formula))) |
509 | if ((res = psiconv_list_add(formula_stack,formula))) |
501 | goto ERROR8; |
510 | goto ERROR8; |
502 | formula->type = psiconv_formula_unknown; |
511 | formula->type = psiconv_formula_unknown; |
503 | } else if ((formula_elements[marker].formula_type == |
512 | } else if ((formula_elements[marker].formula_type == |
504 | psiconv_formula_dat_var) || |
513 | psiconv_formula_dat_var)) { |
505 | (formula_elements[marker].formula_type == |
514 | psiconv_progress(config,lev+3,off+len,"Next item: a variable reference"); |
506 | psiconv_formula_dat_vcellblock)) { |
515 | formula->data.dat_variable = psiconv_read_u32(config,buf,lev+2,off+len,&res); |
507 | psiconv_warn(lev+3,off+len,"Not yet supported formula mark!"); |
516 | if (res) |
508 | 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; |
509 | } else if (formula_elements[marker].number_of_args == -1) { |
523 | } else if (formula_elements[marker].number_of_args == -1) { |
510 | psiconv_progress(lev+3,off+len,"Going to parse a vararg function"); |
524 | psiconv_progress(config,lev+3,off+len,"Going to parse a vararg function"); |
511 | if (!(formula->data.fun_operands = |
525 | if (!(formula->data.fun_operands = |
512 | psiconv_list_new(sizeof(*formula)))) |
526 | psiconv_list_new(sizeof(*formula)))) |
513 | goto ERROR8; |
527 | goto ERROR8; |
514 | formula->type = formula_elements[marker].formula_type; |
528 | formula->type = formula_elements[marker].formula_type; |
515 | nr_of_subs = 0; |
529 | nr_of_subs = 0; |
516 | do { |
530 | do { |
517 | nr_of_subs ++; |
531 | nr_of_subs ++; |
518 | psiconv_progress(lev+4,off+len,"Going to read vararg argument %d", |
532 | psiconv_progress(config,lev+4,off+len,"Going to read vararg argument %d", |
519 | nr_of_subs); |
533 | nr_of_subs); |
520 | if ((res = psiconv_parse_formula_element_list(buf,lev+4,off+len,&leng, |
534 | if ((res = psiconv_parse_formula_element_list(config,buf,lev+4,off+len,&leng, |
521 | &subformula,maxlen))) |
535 | &subformula,maxlen))) |
522 | goto ERROR8; |
536 | goto ERROR8; |
523 | len += leng; |
537 | len += leng; |
524 | if ((res = psiconv_list_add(formula->data.fun_operands,subformula))) { |
538 | if ((res = psiconv_list_add(formula->data.fun_operands,subformula))) { |
525 | psiconv_free_formula(subformula); |
539 | psiconv_free_formula(subformula); |
526 | goto ERROR8; |
540 | goto ERROR8; |
527 | } |
541 | } |
528 | free(subformula); |
542 | free(subformula); |
529 | psiconv_progress(lev+4,off+len,"Going to read the next marker"); |
543 | psiconv_progress(config,lev+4,off+len,"Going to read the next marker"); |
530 | submarker = psiconv_read_u8(buf,lev+4,off+len,&res); |
544 | submarker = psiconv_read_u8(config,buf,lev+4,off+len,&res); |
531 | len ++; |
545 | len ++; |
532 | if (res) |
546 | if (res) |
533 | goto ERROR8; |
547 | goto ERROR8; |
|
|
548 | submarker2 = psiconv_read_u8(config,buf,lev+4,off+len,&res); |
|
|
549 | if (res) |
|
|
550 | goto ERROR8; |
534 | } while (formula_elements[submarker].formula_type |
551 | } while ((formula_elements[submarker].formula_type |
535 | == psiconv_formula_mark_opsep); |
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 | } |
536 | if (formula_elements[submarker].formula_type |
562 | if (formula_elements[submarker].formula_type |
537 | != psiconv_formula_mark_opend) { |
563 | != psiconv_formula_mark_opend) { |
538 | psiconv_warn(lev+3,off+len,"Formula corrupted!"); |
564 | psiconv_error(config,lev+3,off+len,"Formula corrupted!"); |
539 | psiconv_debug(lev+3,off+len,"Found unexpected marker %02x",submarker); |
565 | psiconv_debug(config,lev+3,off+len,"Found unexpected marker %02x",submarker); |
540 | goto ERROR8; |
566 | goto ERROR8; |
541 | } |
567 | } |
542 | psiconv_progress(lev+3,off+len,"Going to read the repeated marker %02x", |
568 | psiconv_progress(config,lev+3,off+len,"Going to read the repeated marker %02x", |
543 | marker); |
569 | marker); |
544 | submarker = psiconv_read_u8(buf,lev+3,off+len,&res); |
570 | submarker = psiconv_read_u8(config,buf,lev+3,off+len,&res); |
545 | if (res) |
571 | if (res) |
546 | goto ERROR8; |
572 | goto ERROR8; |
547 | if (submarker != marker) { |
573 | if (submarker != marker) { |
548 | psiconv_warn(lev+3,off+len,"Formula corrupted!"); |
574 | psiconv_error(config,lev+3,off+len,"Formula corrupted!"); |
549 | psiconv_debug(lev+3,off+len,"Expected marker %02x, found %02x", |
575 | psiconv_debug(config,lev+3,off+len,"Expected marker %02x, found %02x", |
550 | marker,submarker); |
576 | marker,submarker); |
551 | goto ERROR8; |
577 | goto ERROR8; |
552 | } |
578 | } |
553 | len++; |
579 | len++; |
554 | psiconv_progress(lev+3,off+len, |
580 | psiconv_progress(config,lev+3,off+len, |
555 | "Going to read the number of arguments (%d expected)", |
581 | "Going to read the number of arguments (%d expected)", |
556 | nr_of_subs); |
582 | nr_of_subs); |
557 | temp = psiconv_read_u16(buf,lev+3,off+len,&res); |
583 | temp = psiconv_read_u16(config,buf,lev+3,off+len,&res); |
558 | if (res) |
584 | if (res) |
559 | goto ERROR8; |
585 | goto ERROR8; |
560 | if (temp != nr_of_subs) { |
586 | if (temp != nr_of_subs) { |
561 | psiconv_warn(lev+3,off+len,"Formula corrupted!"); |
587 | psiconv_error(config,lev+3,off+len,"Formula corrupted!"); |
562 | psiconv_debug(lev+3,off+len, |
588 | psiconv_debug(config,lev+3,off+len, |
563 | "Read %d arguments, but formula says there are %d", |
589 | "Read %d arguments, but formula says there are %d", |
564 | nr_of_subs,temp); |
590 | nr_of_subs,temp); |
565 | goto ERROR8; |
591 | goto ERROR8; |
566 | } |
592 | } |
567 | len += 2; |
593 | len += 2; |
… | |
… | |
602 | subformula4->type = subformula3->type = subformula2->type = |
628 | subformula4->type = subformula3->type = subformula2->type = |
603 | subformula1->type = formula->type = psiconv_formula_unknown; |
629 | subformula1->type = formula->type = psiconv_formula_unknown; |
604 | } |
630 | } |
605 | } |
631 | } |
606 | if ((len+off > maxlen) || !eof) { |
632 | if ((len+off > maxlen) || !eof) { |
607 | psiconv_warn(lev+2,off+len,"Formula corrupted!"); |
633 | psiconv_error(config,lev+2,off+len,"Formula corrupted!"); |
608 | 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", |
609 | maxlen,len+off); |
635 | maxlen,len+off); |
610 | goto ERROR8; |
636 | goto ERROR8; |
611 | } |
637 | } |
612 | if ((psiconv_list_length(formula_stack)) != 1) { |
638 | if ((psiconv_list_length(formula_stack)) != 1) { |
613 | psiconv_warn(lev+2,off+len,"Formula corrupted!"); |
639 | psiconv_error(config,lev+2,off+len,"Formula corrupted!"); |
614 | 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)", |
615 | psiconv_list_length(formula_stack)); |
641 | psiconv_list_length(formula_stack)); |
616 | goto ERROR8; |
642 | goto ERROR8; |
617 | } |
643 | } |
618 | if ((res = psiconv_list_pop(formula_stack,*result))) |
644 | if ((res = psiconv_list_pop(formula_stack,*result))) |
619 | goto ERROR8; |
645 | goto ERROR8; |
… | |
… | |
621 | free(formula); |
647 | free(formula); |
622 | |
648 | |
623 | if (length) |
649 | if (length) |
624 | *length = len; |
650 | *length = len; |
625 | |
651 | |
626 | psiconv_progress(lev,off+len-1, |
652 | psiconv_progress(config,lev,off+len-1, |
627 | "End of formula element list (total length: %08x)", len); |
653 | "End of formula element list (total length: %08x)", len); |
628 | return 0; |
654 | return 0; |
629 | |
655 | |
630 | ERROR8: |
656 | ERROR8: |
631 | psiconv_free_formula(subformula4); |
657 | psiconv_free_formula(subformula4); |
… | |
… | |
640 | ERROR3: |
666 | ERROR3: |
641 | psiconv_free_formula_list(formula_stack); |
667 | psiconv_free_formula_list(formula_stack); |
642 | ERROR2: |
668 | ERROR2: |
643 | free (*result); |
669 | free (*result); |
644 | ERROR1: |
670 | ERROR1: |
645 | psiconv_warn(lev+1,off,"Reading of formula element list failed"); |
671 | psiconv_error(config,lev+1,off,"Reading of formula element list failed"); |
646 | if (length) |
672 | if (length) |
647 | *length = 0; |
673 | *length = 0; |
648 | if (!res) |
674 | if (!res) |
649 | return -PSICONV_E_NOMEM; |
675 | return -PSICONV_E_NOMEM; |
650 | else |
676 | else |
… | |
… | |
652 | } |
678 | } |
653 | |
679 | |
654 | |
680 | |
655 | |
681 | |
656 | |
682 | |
657 | 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, |
658 | psiconv_u32 off, int *length, |
685 | psiconv_u32 off, int *length, |
659 | psiconv_formula *result) |
686 | psiconv_formula *result) |
660 | { |
687 | { |
661 | int res=0; |
688 | int res=0; |
662 | int len=0; |
689 | int len=0; |
663 | int leng; |
690 | int leng; |
664 | psiconv_u32 bytelen,formula_end; |
691 | psiconv_u32 bytelen,formula_end; |
665 | psiconv_u8 temp; |
692 | psiconv_u8 temp; |
666 | |
693 | |
667 | psiconv_progress(lev+1,off,"Going to read a formula"); |
694 | psiconv_progress(config,lev+1,off,"Going to read a formula"); |
668 | |
695 | |
669 | psiconv_progress(lev+2,off+len, |
696 | psiconv_progress(config,lev+2,off+len, |
670 | "Going to read the formula byte length"); |
697 | "Going to read the formula byte length"); |
671 | bytelen = psiconv_read_S(buf,lev+2,off+len,&leng,&res); |
698 | bytelen = psiconv_read_S(config,buf,lev+2,off+len,&leng,&res); |
672 | if (res) |
699 | if (res) |
673 | goto ERROR1; |
700 | goto ERROR1; |
674 | psiconv_debug(lev+2,off+len,"Formula byte length: %d",bytelen); |
701 | psiconv_debug(config,lev+2,off+len,"Formula byte length: %d",bytelen); |
675 | len += leng; |
702 | len += leng; |
676 | bytelen += len; |
703 | bytelen += len; |
677 | formula_end = off + bytelen; |
704 | formula_end = off + bytelen; |
678 | |
705 | |
679 | 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"); |
680 | 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, |
681 | result,formula_end))) |
708 | result,formula_end))) |
682 | goto ERROR1; |
709 | goto ERROR1; |
683 | len += leng; |
710 | len += leng; |
684 | |
711 | |
685 | 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"); |
686 | temp = psiconv_read_u8(buf,lev+2,off+len,&res); |
713 | temp = psiconv_read_u8(config,buf,lev+2,off+len,&res); |
687 | if (res) |
714 | if (res) |
688 | goto ERROR2; |
715 | goto ERROR2; |
689 | if (formula_elements[temp].formula_type != psiconv_formula_mark_eof) { |
716 | if (formula_elements[temp].formula_type != psiconv_formula_mark_eof) { |
690 | psiconv_warn(lev+2,off+len,"Formula corrupted!"); |
717 | psiconv_error(config,lev+2,off+len,"Formula corrupted!"); |
691 | 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", |
692 | 0x15,temp); |
719 | 0x15,temp); |
693 | goto ERROR2; |
720 | goto ERROR2; |
694 | } |
721 | } |
695 | len ++; |
722 | len ++; |
696 | |
723 | |
697 | if (off+len != formula_end) { |
724 | if (off+len != formula_end) { |
698 | psiconv_warn(lev+2,off+len,"Formula corrupted!"); |
725 | psiconv_error(config,lev+2,off+len,"Formula corrupted!"); |
699 | 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", |
700 | formula_end,len+off); |
727 | formula_end,len+off); |
701 | goto ERROR2; |
728 | goto ERROR2; |
702 | } |
729 | } |
703 | |
730 | |
704 | if (length) |
731 | if (length) |
705 | *length = len; |
732 | *length = len; |
706 | |
733 | |
707 | psiconv_progress(lev,off+len-1, |
734 | psiconv_progress(config,lev,off+len-1, |
708 | "End of formula (total length: %08x)", len); |
735 | "End of formula (total length: %08x)", len); |
709 | return 0; |
736 | return 0; |
710 | |
737 | |
711 | ERROR2: |
738 | ERROR2: |
712 | psiconv_free_formula(*result); |
739 | psiconv_free_formula(*result); |
713 | ERROR1: |
740 | ERROR1: |
714 | psiconv_warn(lev+1,off,"Reading of formula failed"); |
741 | psiconv_error(config,lev+1,off,"Reading of formula failed"); |
715 | if (length) |
742 | if (length) |
716 | *length = 0; |
743 | *length = 0; |
717 | if (!res) |
744 | if (!res) |
718 | return -PSICONV_E_NOMEM; |
745 | return -PSICONV_E_NOMEM; |
719 | else |
746 | else |