Commit Graph

166 Commits

Author SHA1 Message Date
Stefan Weil
36f768853a Modernize C++ code using override
The modifications were done using this command:

    run-clang-tidy-8.py -header-filter='.*' -checks='-*,modernize-use-override' -fix

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-03-26 07:37:52 +01:00
Stefan Weil
631882a346 Fix compiler warnings (signed / unsigned mismatch)
clang warnings:

    src/ccutil/unicharcompress.cpp:172:27: warning: comparison of integers of different signs: 'int' and 'std::__cxx1998::vector::size_type' (aka 'unsigned long') [-Wsign-compare]
    src/lstm/recodebeam.cpp:129:29: warning: comparison of integers of different signs: 'std::__cxx1998::vector::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
    src/lstm/recodebeam.cpp:276:48: warning: comparison of integers of different signs: 'std::__cxx1998::vector::size_type' (aka 'unsigned long') and 'int' [-Wsign-compare]
    unittest/imagedata_test.cc:101:21: warning: comparison of integers of different signs: 'int' and 'std::__cxx1998::vector::size_type' (aka 'unsigned long') [-Wsign-compare]
    unittest/linlsq_test.cc:33:23: warning: comparison of integers of different signs: 'int' and 'std::__cxx1998::vector::size_type' (aka 'unsigned long') [-Wsign-compare]
    unittest/linlsq_test.cc:44:23: warning: comparison of integers of different signs: 'int' and 'std::__cxx1998::vector::size_type' (aka 'unsigned long') [-Wsign-compare]
    unittest/nthitem_test.cc:27:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
    unittest/nthitem_test.cc:68:21: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]
    unittest/stats_test.cc:26:23: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-03-25 08:36:07 +01:00
Stefan Weil
f9860cda41 Optimize functions ResetFrom
The loop can terminate as soon as the parameter name was found.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-03-24 21:21:23 +01:00
Stefan Weil
41da5afe9d UNICHARSET: Fix compiler warning (signed/unsigned mismatch)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-03-24 21:18:21 +01:00
Stefan Weil
91e2b253c0 Format modified code with clang-format
Format the files which were changed in
commit 297d7d86ce.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-03-24 21:10:29 +01:00
Stefan Weil
58423d2f6c
Merge pull request #2328 from bertsky/lstm-with-user-patterns2
Add user words / patterns again
2019-03-24 19:38:40 +01:00
Stefan Weil
da6305b632 Fix compiler warnings caused by ASSERT_HOST
The modified definition avoids warnings caused by redundant semicolons.
Now a semicolon is required when using the macro, so a few code locations
had to be updated.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-03-24 17:47:04 +01:00
Stefan Weil
ee2f9bf7bf Remove old comments in file headers
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-03-16 10:55:00 +01:00
Robert Schubert
297d7d86ce trying to add user words/patterns again:
- pass in ParamsVectors from Tesseract
  (carrying values from langdata/config/api)
  into LSTMRecognizer::Load and LoadDictionary
- after LSTMRecognizer's Dict is initialised
  (with default values), reset the variables
  user_{words,patterns}_{suffix,file} from the
  corresponding entries in the passed vector
2019-03-15 16:06:19 +01:00
Robert Schubert
3912cb1c33 LSTM char_whitelist/blacklist (6ac2ff0): more robust
- unicharset can be null too
2019-03-09 10:40:40 +01:00
Stefan Weil
1c7e00611b Add initial support for traineddata files in standard archive formats
This requires libarchive-dev.

Tesseract can now load traineddata files in any of the archive formats
which are supported by libarchive. Example of a zipped BagIt archive:

    $ unzip -l /usr/local/share/tessdata/zip.traineddata
    Archive:  /usr/local/share/tessdata/zip.traineddata
      Length      Date    Time    Name
    ---------  ---------- -----   ----
           55  2019-03-05 15:27   bagit.txt
            0  2019-03-05 15:25   data/
         1557  2019-03-05 15:28   manifest-sha256.txt
      1082890  2019-03-05 15:25   data/eng.word-dawg
      1487588  2019-03-05 15:25   data/eng.lstm
         7477  2019-03-05 15:25   data/eng.unicharset
        63346  2019-03-05 15:25   data/eng.shapetable
       976552  2019-03-05 15:25   data/eng.inttemp
        13408  2019-03-05 15:25   data/eng.normproto
         4322  2019-03-05 15:25   data/eng.punc-dawg
         4738  2019-03-05 15:25   data/eng.lstm-number-dawg
         1410  2019-03-05 15:25   data/eng.freq-dawg
          844  2019-03-05 15:25   data/eng.pffmtable
         6360  2019-03-05 15:25   data/eng.lstm-unicharset
         1012  2019-03-05 15:25   data/eng.lstm-recoder
         1047  2019-03-05 15:25   data/eng.unicharambigs
         4322  2019-03-05 15:25   data/eng.lstm-punc-dawg
     16109842  2019-03-05 15:25   data/eng.bigram-dawg
           80  2019-03-05 15:25   data/eng.version
         6426  2019-03-05 15:25   data/eng.number-dawg
      3694794  2019-03-05 15:25   data/eng.lstm-word-dawg
    ---------                     -------
     23468070                     21 files

`combine_tessdata -d` and `combine_tessdata -u` also work.

The traineddata files in the new format can be generated with
standard tools like zip or tar.

More work is needed for other training tools and big endian support.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-03-05 17:18:48 +01:00
Stefan Weil
2cbe723d03 Fix doxygen comments
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-02-20 21:11:38 +01:00
Stefan Weil
38861be639 Use __builtin_trap instead of null pointer dereference to abort
This fixes a warning from Apple's clang compiler:

    [ 34%] Building CXX object CMakeFiles/libtesseract.dir/src/ccutil/errcode.cpp.o
    /Users/travis/build/stweil/tesseract/src/ccutil/errcode.cpp:83:7: warning: indirection of non-volatile null pointer will be deleted, not trap [-Wnull-dereference]
          *reinterpret_cast<int*>(0) = 0;
          ^~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/travis/build/stweil/tesseract/src/ccutil/errcode.cpp:83:7: note: consider using __builtin_trap() or qualifying pointer with 'volatile'

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-02-18 10:49:51 +01:00
Stefan Weil
2a355ea103 Fix compiler warnings (-Wimplicit-fallthrough)
gcc warnings:

    src/ccmain/docqual.cpp:734:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
    src/ccmain/docqual.cpp:764:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
    src/ccmain/docqual.cpp:782:26: warning: this statement may fall through [-Wimplicit-fallthrough=]
    [...]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-02-09 16:32:20 +01:00
Stefan Weil
aa2dcca295 Fix compiler warnings (-Wstringop-truncation)
gcc warnings:

    src/api/tesseractmain.cpp:252:14: warning:
        ‘char* strncpy(char*, const char*, size_t)’ specified bound 255
        equals destination size [-Wstringop-truncation]
    src/ccutil/unicharset.h:66:12: warning:
        ‘char* strncpy(char*, const char*, size_t)’ output may be truncated copying 30 bytes from a string of length 30 [-Wstringop-truncation]
    src/ccutil/unicharset.cpp:806:12: warning:
        ‘char* strncpy(char*, const char*, size_t)’ specified bound 64 equals destination size [-Wstringop-truncation]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2019-02-09 16:32:09 +01:00
Stefan Weil
e2419b1968 Fix potential crash in tprintf
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-11-30 23:14:11 +01:00
Stefan Weil
6b6d9de497 Fix potential crash in STRING class
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-11-30 23:14:11 +01:00
Stefan Weil
9b783822a0 Remove unused include statements for tprintf.h
Format also a call of tprintf and add a missing explicit include statement.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-11-18 17:25:01 +01:00
Stefan Weil
a93426c9ff Fix wrong results from function streamtofloat
The local variable k should be 10 ^ (number of digits after comma),
but will overflow when there are more than 9 digits after the comma
because an int value cannot store 10000000000.

This results in wrong double values read from .tr files for example
(or in a runtime exception if Tesseract was compiled with -ftrapv).

Using uint64_t does not fix the general problem but allows more digits
which should be sufficient for the data read by Tesseract.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-11-17 20:02:21 +01:00
zdenop
724957167e fix typo in non VS build 2018-11-08 23:10:14 +01:00
zdenop
eb104f9fe4 VS build: fix warning C4996: The POSIX name for this item is deprecated. Instead, use the ISO C and C++ conformant name. 2018-11-08 22:55:04 +01:00
zdenop
7a7f226228 ocrclass: Remove unused macros
Signed-off-by: Stefan Weil <sw@weilnetz.de>

# Conflicts:
#	src/ccutil/ocrclass.h
2018-11-08 20:23:36 +01:00
Zdenko Podobný
2dd753ee4c replace VS implementation of gettimeofday with std::chrono::steady_clock::now(); fixes #2038 2018-11-08 19:43:46 +01:00
chrismamo1
30be5aaaac fix a couple minor compiler warnings 2018-10-30 18:00:32 -06:00
Stefan Weil
eefb8348f7 Fix compiler warning
Compiler warning on macOS:

    tesscallback.h:29:7: warning:
      'TessClosure' has no out-of-line virtual method definitions;
      its vtable will be emitted in every translation unit [-Wweak-vtables]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-23 17:01:53 +02:00
Stefan Weil
9c0799314e Add parenthesis in boolean expression
This fixes a compiler warning:

    scanutils.cpp:444:32: warning:
        '&&' within '||' [-Wlogical-op-parentheses]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-22 17:48:17 +02:00
Stefan Weil
0f973e1d62 Add missing 'static' keyword
This fixes a compiler warning:

    globaloc.cpp:33:6: warning: no previous extern declaration for
      non-static variable 'global_crash_pixes'
      [-Wmissing-variable-declarations]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-22 17:48:17 +02:00
Stefan Weil
a71ad455be Remove unused macros
This fixes some compiler warnings:

    mainblk.cpp:28:9: warning: macro is not used [-Wunused-macros]
    mainblk.cpp:29:9: warning: macro is not used [-Wunused-macros]
    [...]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-22 17:48:17 +02:00
Zdenko Podobný
67b6b02e2d Merge branch 'master' of https://github.com/tesseract-ocr/tesseract
* 'master' of https://github.com/tesseract-ocr/tesseract:
  Remove code for _MSC_VER < 1900
  keep API compatibility with #1265
  Update googletest submodule to release v1.8.1
  Update test submodule
  Always use isascii() with isspace()
  Avoid crash with --psm 0 and LSTM traineddata
  SVPaint: Remove empty block
  Classify: Don't hide debug parameter
  UNICHARMAP: Remove comparison which is always false
  svpaint: Change a variable from global to local
  pgedit: remove unused declaration of display_bln_lines
  Plumbing: Remove comparison which is always false
  Release candidate 2
  use pdf L_FLATE_ENCODE only for png input; fixes #1961
2018-10-09 15:37:40 +02:00
Stefan Weil
f94b3fd9fc Remove code for _MSC_VER < 1900
Tesseract does not support Visual C++ older than Visual Studio 2015.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-09 14:05:21 +02:00
Stefan Weil
dcd0377bf0 Always use isascii() with isspace()
isspace() must only used with an unsigned char or EOF argument,
and even then its result can depend on the current locale settings.

While this is not a problem for C/C++ executables which use the default
"C" locale, it becomes a problem when the Tesseract API is called from
languages like Python or Java which don't use the "C" locale.

By calling isasci() before calling isspace() this uncertainty can be
avoided, because any locale will hopefully give identical results for
the basic ASCII character set.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 17:25:09 +02:00
Stefan Weil
30b75cfc05 UNICHARMAP: Remove comparison which is always false
Warning from LGTM:

    Comparison is always false because index <= 0 and 1 <= length.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-08 14:15:17 +02:00
Zdenko Podobný
8598731daf Merge branch 'master' of https://github.com/tesseract-ocr/tesseract
* 'master' of https://github.com/tesseract-ocr/tesseract: (27 commits)
  Rework check for readable input file
  fix "mktemp -d --tmpdir" on Mac OS; see #1453
  pgedit: Change some variables from global to local ones
  improve description of min_characters_to_try variable
  WERD_RES: Remove comparisons which are constant
  GENERIC_2D_ARRAY: Pass parameters by reference
  genericvector: Pass parameters by reference
  chop: Use more efficient float calculations for sqrt
  rect: Use more efficient float calculations for ceil, floor
  intproto: Use more efficient float calculations for floor
  genericvector: Rewrite code to satisfy static code analyzer
  Fix constructor for class Dict (uninitialized member variables)
  Fix use of wrong UNICHARSET
  lstmtraining: Remove dead code for purified model name
  combine_tessdata: Handle failures when extracting
  lstmtraining: Check write permission for output model
  implement parameter min_characters_to_try for minimum characters to try to skip page entirely. fixes #1729
  Merge and enhance documentation on language and script models
  Document some more config options for tesseract
  Add Makefile rule to build HTML manpages
  ...
2018-10-07 15:39:02 +02:00
Stefan Weil
a7982185c9 genericvector: Pass parameters by reference
This fixes warnings like the following one from LGTM:

This parameter of type ParamsTrainingHypothesis is 112 bytes
- consider passing a pointer/reference instead.

Most parameters can also get the const attribute.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 19:47:49 +02:00
Stefan Weil
06a8de0b8b genericvector: Rewrite code to satisfy static code analyzer
Warning from LGTM:

Resource data_ is acquired by class GenericVector<FontSpacingInfo *>
but not released in the destructor.

LGTM complains about data_ not being deleted in the destructor.
The destructor calls the clear() method, but the delete there
was conditional which confuses the static code analyzer.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-06 18:24:13 +02:00
Zdenko Podobný
dcc50a867f Merge branch 'master' of https://github.com/tesseract-ocr/tesseract
* 'master' of https://github.com/tesseract-ocr/tesseract:
  Fix CID 1164579 (Explicit null dereferenced)
  print help for tesstrain.sh; fixes #1469
  Fix CID 1395882 (Uninitialized scalar variable)
  Fix comments
  Move content of ipoints.h to points.h and remove ipoints.h
  remove duplicate help from combine_lang_model
  Fix typo.
  use tprintf instead of printf to be able disable messages by quiet option (issue #1240)
  add "sudo ldconfig" to install instruction. fixes #1212
  unittest: Replace NULL by nullptr
  unittest: Format code
  tesseract app: check if input file exists; fixes #1023
  Format code (replace ( xxx ) by (xxx))
  Simplify boolean expressions
  Win32: use the ISO C and C++ conformant name "_putenv" instead of deprecated "putenv"
2018-10-03 19:21:42 +02:00
Stefan Weil
04703ca8df Fix CID 1164579 (Explicit null dereferenced)
The report from Coverity Scan is a false positive.

Nevertheless the code can be rewritten and optimized
a little bit to fix that report.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-10-02 11:48:28 +02:00
Stefan Weil
0f3206d5fe Format code (replace ( xxx ) by (xxx))
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-29 08:21:25 +02:00
Stefan Weil
63f87cac90 Simplify boolean expressions
Remove "? true : false" which is not needed for boolean expressions.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-29 08:21:14 +02:00
Zdenko Podobný
bf6d929e4c fix using c-api / compile with gcc 2018-09-28 23:14:32 +02:00
Stefan Weil
5338a5a8d5 Don't trigger a deliberate SIGSEGV for fatal errors in release code
The error message "segmentation fault" confuses most users,
so enforce a segmentation fault only in debug code.

Release code simply calls the abort function.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-20 21:50:13 +02:00
Stefan Weil
741ea00d70 Don't call exit when parameter in file is unknown
Wrong or old parameters in traineddata files should not terminate
the program, so make that a warning instead of a fatal error.

This fixes issue #1520.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-20 08:37:33 +02:00
Zdenko Podobný
5d22fdfeed replace deprecated C++ headers (reported by clan-tidy) - partially supersedes PR #1605 2018-09-18 18:51:11 +02:00
Stefan Weil
94d227bc77 IndexMapBiDi: Define virtual destructor in .cpp file
This fixes compiler warnings from clang:

src/ccutil/indexmapbidi.h:102:7: warning:
 'IndexMapBiDi' has no out-of-line virtual method definitions;
 its vtable will be emitted in every translation unit [-Wweak-vtables]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-04 13:08:29 +02:00
Stefan Weil
32098b7d4d IndexMap: Define virtual destructor in .cpp file
This fixes compiler warnings from clang:

src/ccutil/indexmapbidi.h:102:7: warning:
 'IndexMapBiDi' has no out-of-line virtual method definitions;
 its vtable will be emitted in every translation unit [-Wweak-vtables]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-04 07:45:28 +02:00
Stefan Weil
5b8162f0ef CCUtil: Define virtual destructor in .cpp file
This fixes compiler warnings from clang:

src/ccutil/ccutil.h:51:7: warning:
 'CCUtil' has no out-of-line virtual method definitions;
 its vtable will be emitted in every translation unit [-Wweak-vtables]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-04 07:44:27 +02:00
Stefan Weil
c635cdf5d5 Do not define or use macro __UNIX__
Either it was not needed, or it could be replaced by checking
for not _WIN32.

This fixes a compiler warning from clang:

src/ccutil/platform.h:41:9: warning:
 macro name is a reserved identifier [-Wreserved-id-macro]

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-09-04 07:34:11 +02:00
Stefan Weil
69a111a739 Clean use of qsort function sort_floats
It is only used in textord/topitch.cpp, so move it into that file.

Remove also the inline attribute as it has not effect here and
update the type casts to fix some compiler warnings from clang.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-08-31 23:17:27 +02:00
Stefan Weil
7a2f8d9010 Move class tesseract::File from training to ccutil
This allows using the class for unittests, too.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-08-25 18:16:46 +02:00
Stefan Weil
6a28cce96b Fix whitespace issues
* Remove whitespace (blanks, tabs, cr) at line endings

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-08-01 13:19:52 +02:00
Stefan Weil
132c540c85 Increase limit for deserialization of large arrays
The last limit was still too small.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-21 11:10:09 +02:00
Stefan Weil
f577e292c2 Increase limit and add assertions for deserialization of large arrays
One of the checks was too restrictive, as lstmeval deserializes
char arrays with 14000000 elements, so raise the limit to 30000000.
That check was added in commit 992031e824.

Add also assertions which help finding such problems in debug mode.

Signed-off-by: Stefan Weil <stweil@ub-backup.bib.uni-mannheim.de>
2018-07-20 11:47:49 +02:00
Stefan Weil
88b3d940be TessdataManager: Use new serialization API
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-18 17:28:13 +02:00
Stefan Weil
da0217fa75 STRING: Use new serialization API
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-18 17:17:22 +02:00
Stefan Weil
5e05f2cb84 IndexMap: Use new serialization API and optimize code
By changing the type of sparse_size_ from int to int32_t,
a local copy can be removed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-18 17:12:44 +02:00
Stefan Weil
edff1d1882 BitVector: Use new serialization API
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-18 17:07:03 +02:00
Stefan Weil
66bc012d27 UNICHARSET: Use new serialization API
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-18 16:22:02 +02:00
Stefan Weil
eb90068b5f RecodedCharID: Use new serialization API
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-18 16:22:01 +02:00
Stefan Weil
c383b1aaca TFile: Add helper functions for serialization of simple data types
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-18 11:19:37 +02:00
Stefan Weil
16832f9878 Add helper functions for serialization of simple data types
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-18 11:19:37 +02:00
zdenop
e9cd6024d7
Merge pull request #1767 from stweil/unused
Remove unused macros and fix comments
2018-07-07 21:55:17 +02:00
Stefan Weil
0d4975933e Replace tprintf_internal by tprintf and clean tprintf code
Commit 4d514d5a60 introduced tprintf_internal
with an additional argument "level" which was removed again in commit
7dc5296fe9.

So we can now restore the original state without tprintf_internal.

Remove also the declaration of debug_window_on (it does not exist since
commit 030aae9896) and make the
configuration parameter debug_file local as it is only used by tprintf.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-07 21:47:10 +02:00
Stefan Weil
8bd9567355 Fix some comments
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-07 21:19:01 +02:00
Stefan Weil
7e80a850ad Remove unused macros
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-07 21:19:01 +02:00
Stefan Weil
0eb239ee8b Fix typo in comments
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-06 22:00:00 +02:00
Stefan Weil
4bb41b8952 Fix CID 1164693 (Untrusted value as argument)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-06 16:11:29 +02:00
Stefan Weil
992031e824 Fix CID 1164702 (Untrusted value as argument)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-06 16:11:29 +02:00
Stefan Weil
8871f4d622 Fix CID 1164686 (Use of untrusted scalar value)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-06 16:11:29 +02:00
Stefan Weil
92e2ad0471 Fix CID 1164703 (Untrusted value as argument)
Wrong file data could give a large value for the number of vector elements
resulting in very large memory allocations.

Limit the allowed data range to UINT16_MAX (65535) elements
which hopefully should be sufficient for all use cases.

Changing the data type of the related member variables from int to
uint32_t allowed removing several type casts.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-06 16:11:10 +02:00
Stefan Weil
d2febafdcd Fix compiler warnings [-Wmissing-prototypes]
Add missing include statements, add missing "static" qualifiers or
remove functions which are not used at all.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-05 16:03:02 +02:00
Stefan Weil
bdf09f40b1 Fix compiler warnings [-Wzero-as-null-pointer-constant]
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-04 20:40:56 +02:00
Stefan Weil
c8b5a29ce9 Remove unneeded type casts
This removes unneded type casts to (char*) and (const char*).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-04 14:23:55 +02:00
Stefan Weil
6d170a15ec Replace tabs by blanks in source code
blobs.cpp had many tabs and was formatted with clang-format.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-03 16:29:14 +02:00
Stefan Weil
626a229cac Remove nwmain.h
The macro DECLARE_MAIN is not used by the current Tesseract code.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-03 15:54:41 +02:00
Stefan Weil
faae87beaa Replace FLOAT32 by float data type
On most systems float is the IEEE 754 single-precision binary
floating-point format (32 bits). Tesseract does not support other systems.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-02 13:29:39 +02:00
Stefan Weil
f6c3c8cf4d Replace MAX_FLOAT32 by standard FLT_MAX and remove unused MIN_FLOAT32
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-02 13:29:39 +02:00
Stefan Weil
919901eb19 Replace FLOAT64 by double data type
On most systems double is the IEEE 754 double-precision binary
floating-point format (64 bits). Tesseract does not support other systems.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-07-02 08:07:37 +02:00
Stefan Weil
9bb5a87760 Remove stderr.h and its include statements
MEMORY_OUT is no longer used.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-25 16:14:20 +02:00
Stefan Weil
db7f2009d9 Remove memry.cpp, memry.h
The proprietary memory allocators alloc_string, alloc_mem
are no longer used.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-25 16:13:59 +02:00
Stefan Weil
20e243d5c9 strngs: Replace alloc_mem, free_mem by standard functions
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-25 14:31:48 +02:00
Stefan Weil
91522dfba5 Remove memry.h from public API
It is no longer needed by genericvector.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-23 21:15:54 +02:00
Stefan Weil
1a151781ea Clean some include statements
The changes are based on an analysis done with include-what-you-use.

Replace also some standard header files by the corresponding
standard C++ header files.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-23 21:15:54 +02:00
Stefan Weil
484a1be98a Remove unneeded include statements for scanutils.h
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-22 19:16:08 +02:00
Stefan Weil
1371980f9f Replace string.h by standard C++ cstring
Remove the unneeded include statement in platform.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-21 20:40:26 +02:00
Stefan Weil
112aeb9826 Clean usage of assert.h
Remove unneeded include statements, remove conditional statements and
replace the remaining assert.h by their standard C++ variant cassert.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-21 19:31:05 +02:00
Stefan Weil
a9e2574eff Remove public API file ndminx.h
It is not needed for the Tesseract code, and the Tesseract API
should not provide MIN / MAX macros.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-21 08:33:30 +02:00
Stefan Weil
0cb128d56b Remove errcode.h from public API
It is no longer needed by genericvector.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-21 06:20:26 +02:00
Stefan Weil
44450094c3 Replace ASSERT_HOST in genericvector.h
genericvector.h used a mix of assert and ASSERT_HOST.

By using assert only, it does no longer depend on errcode.h
which defines the ASSERT_HOST macro.

Other files which still use ASSERT_HOST now need an explicit
include statement for errcode.h.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-20 22:32:17 +02:00
Stefan Weil
d6391ee811 Fix CID 1393540 (Explicit null dereferenced)
Coverity Scan does not like incrementing of a null pointer,
so increment an index value instead of a pointer.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-20 17:32:02 +02:00
Stefan Weil
e87e8967d7 Remove more header files from public API
Install only those headers which are needed by third party applications.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-20 11:54:38 +02:00
Stefan Weil
c1c87d73ee Require tesseract/ for API header files (fixes potential name conflicts)
The tesseract/ subdirectory is no longer automatically added to the
include path of the compiler. Therefore old code which used code like

    #include "capi.h"

must now change that to

    #include "tesseract/capi.h"

This avoids name conflicts with header files from other projects.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-17 22:01:19 +02:00
Stefan Weil
02277bed34 scanutils: Fix typos in comments
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-09 07:53:20 +02:00
Stefan Weil
280db06bbf scanutils: Fix illegal memory access
Format strings which contain "%*s" show this error in Valgrind:

==32503== Conditional jump or move depends on uninitialised value(s)
==32503==    at 0x2B8BB0: tvfscanf(_IO_FILE*, char const*, __va_list_tag*) (scanutils.cpp:486)
==32503==    by 0x2B825A: tfscanf(_IO_FILE*, char const*, ...) (scanutils.cpp:234)
==32503==    by 0x272B01: read_unlv_file(STRING, int, int, BLOCK_LIST*) (blread.cpp:54)
==32503==    by 0x1753CD: tesseract::Tesseract::SegmentPage(STRING const*, BLOCK_LIST*, tesseract::Tesseract*, OSResults*) (pagesegmain.cpp:115)
==32503==    by 0x1363CD: tesseract::TessBaseAPI::FindLines() (baseapi.cpp:2291)
==32503==    by 0x130CF1: tesseract::TessBaseAPI::Recognize(ETEXT_DESC*) (baseapi.cpp:802)
==32503==    by 0x1322D3: tesseract::TessBaseAPI::ProcessPage(Pix*, int, char const*, char const*, int, tesseract::TessResultRenderer*) (baseapi.cpp:1176)
==32503==    by 0x131A84: tesseract::TessBaseAPI::ProcessPagesMultipageTiff(unsigned char const*, unsigned long, char const*, char const*, int, tesseract::TessResultRenderer*, int) (baseapi.cpp:1013)
==32503==    by 0x132052: tesseract::TessBaseAPI::ProcessPagesInternal(char const*, char const*, int, tesseract::TessResultRenderer*) (baseapi.cpp:1129)
==32503==    by 0x131B1E: tesseract::TessBaseAPI::ProcessPages(char const*, char const*, int, tesseract::TessResultRenderer*) (baseapi.cpp:1032)
==32503==    by 0x12E00C: main (tesseractmain.cpp:537)
==32503==  Uninitialised value was created by a stack allocation
==32503==    at 0x272A60: read_unlv_file(STRING, int, int, BLOCK_LIST*) (blread.cpp:41)

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-08 15:28:30 +02:00
zdenop
ee2ab73224
Merge pull request #1637 from paulk124/master
Reserve extra byte in LoadDataFromFile() in case caller wants to appe…
2018-06-05 16:57:40 +02:00
Paul Kitchen
805fb7699d Reserve extra byte in LoadDataFromFile() in case caller wants to append '\0' 2018-06-05 08:19:41 -06:00
Stefan Weil
52fddc3ca9 TFile: Relax assertion and allow FRead, FWrite with count == 0
The assertions introduced by commit 8bea6bcc12
were too strict. The first one failed in osd_test, the second one failed
in `tesseract IMAGE BASE --psm 13 lstm.train`.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-04 22:42:19 +02:00
Stefan Weil
8bea6bcc12 TFile: Improve handling of potential integer overflow
Raise an assertion for unexpected arguments and use size_t instead of int
for the size argument which is typically sizeof(some_datatype).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-06-04 13:53:36 +02:00
Jaroslaw Kubik
e254c9fa38 Return a value from default progress report function
The progress reporting function returns a boolean. The returned
value is never used by the tesseract and its meaing is not
documented, which renders the value meaningless. Still, lack of
return should not be premitted.
2018-05-30 10:44:13 +02:00
Jaroslaw Kubik
217e5e5881 Add a context-aware progress monitor pointer
The progress_callback field in the ETEXT_DESC monitor type does not
take any 'context' parameter, which may make implementing callback
functions difficult and may require use of global variables.
The new function receives the ETEXT_DESC pointer as an argument.
This makes it possible to share the cancel_this field as context
carrier if required.
The change is backwards-compatible: the old pointer remains as a
member of the class, and the default value for the new pointer is
a function calling the classic progress notifier. This way the code
unaware of the new member will continue to work as before.
2018-05-29 21:48:51 +02:00
Stefan Weil
509a6f0ce0 Fix some typos (most found by codespell)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2018-05-27 18:49:43 +02:00