538 lines
21 KiB
Text
538 lines
21 KiB
Text
This is a list of reviews, so that developers don't get confused with the new
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changes. Please document what you do here.
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() done
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[] done, but should be reviewed
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|| to be done, do if you can
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?? question: if you know, solve it
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Writer: put your initials inside.
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5/8
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(bbg) changed box1 to head_data.
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(bbg) changed boxd to head_db.
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|bbg| box2 static variables do not exist anymore. They were confusing,
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since these names were used as arguments to functions too. From what I've
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seen, this will not affect the program.
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(js) agree
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(bbg) added new file: box.c, with all the functions that deal with boxes.
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(bbg) added new file: database.c, with all the functions that deal with db.
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[bbg] ocr_db()
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|bbg| split pgm2asc(): the function would still exist, but call other
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subfunctions which are part of it now. I suggest:
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- find_letters()
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- remove_dust()
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- remove_pictures()
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- remove_melted_serifs()
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- find_longest_line()
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- detect_lines()
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etc: they are practically already defined between {}.
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?bbg? pgm2asc: it has 2 frame letter codes, 2 find pictures, 2 remove
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dust
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|js| It is result of last (not finished) big rewriting of code
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will be changed later
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|bbg| vvv (or equivalent) should be global.
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6/8
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(bbg) general linked lists done (list.*).
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|bbg| Functions in box.c should be changed by the new general ones.
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linearr should too.
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(bbg) strc() and in_str() changed by strchr.
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?bbg? shouldn't test_umlaut() belong to another file, like ocr0.cc?
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js: good idea
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(bbg) moved to ocr0.cc
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?bbg? there are several functions with 2 or 3 versions (detect_lines,
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detect_lines2, for example). Do they do the same thing (and one
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is older) or different things?
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js: different, they are different childs from same mother
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they are going more different in future
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?bbg? What do ini_list(), excude() and getresult() do? They don't seem
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to be used. If they are useless, please delete them.
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js: read the new comments in the file (should be in seperate file?)
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|bbg| document pixel().
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:done.
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|bbg| Many, many commented lines all over the file; should be cleaned.
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:done.
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|bbg| Change new->malloc, delete->free.
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:done
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7/8
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(js) some comments added in pgm2asc.cc
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|bbg| instead of p.p[x+y*p.x], use the new macro pixel_at(p, x, y).
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Not all substitutions done yet.
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:done.
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(bbg) excude() renamed to exclude().
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?bbg? what are the pixel bits meaning? A table would be useful.
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(js) not stable: lowest (3-4?) bits are for temporary use
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highest (4?) bits are for intensity
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|bbg| must change all "type &p" arguments.
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:done
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|bbg| should make argument order standard: at the present, sometimes the
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order is x0,x1,y0,y1, sometimes x0,y0,x1,y1, pix is not always the
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first, etc.
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(bbg) turmite(): changed for+if -> while. Is is correct? I think so, but
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a test wouldn't hurt. Also optimized the function.
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(js) I test it after complete review.
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8/8
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(js) pgm2asc.cc: generally pix *p used, pgm2asc() partly rewritten
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|js| ocr0.cc: pix *p must be used everywhere
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:done
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(bbg) pixel(): first part (c33 filling) optimized.
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(bbg) minor optimizations, cut superflous counters.
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?bbg? copybox: shouldn't b->p be free()d, or realloc()ed? There's also a new
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faster version (using memcpy), but there's no unmarking of pixels; I'm
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also not sure if they are equivalent, since I'm not calling pixel. It's
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between #ifs.
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9/8
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(bbg) Started to change linearr to linked lists; linearr is obsolete now,
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and textlines too.
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(bbg) free_textlines() and getTextLine() use linked lists (instead of linearr)
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now. The first may be deleted in the future.
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[bbg] store_boxtree_textlines use linked lists (instead of linearr) now, but
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should be tested and reviewed; specially if (box2->c == ' ') since it
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doesn't check for an \n anymore (why should it?). Also the extra list_app
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should be checked. Check too if "if (!(mo & 8))" shouldn't come before
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"if (box2->c != '_')".
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:done
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(bbg) Moved copybox() to box.c
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?bbg? put(): What are ia and io?
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js: ia int_and, io int_or new_pixel=(old_pixel & ia) | io
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for more praktical use
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|bbg| What about putting remove_dust, remove_picture, remove_etc in another
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file, such as clean.c or remove.c?
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js: should be made
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bbg: done
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|bbg| several #ifdef's pending approval or review. Get rid of them.
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:done
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[bbg] Added code to open pgm files using libpgm. Not tested, but should be OK.
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[bbg] started to write writepbm, writeppm.
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10/8
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[js] pgm2asc() new functions created
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(bbg) moved remove_* functions to remove.c
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(bbg) added doc/ directory; moved ocr.tex to doc/; created examples.txt.
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(bbg) added UNICODE support: unicode.h contains all symbols we will ever need,
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unicode.c contains two conversion functions.
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(bbg) most of Unicode->TeX convert() (0x7F-0xFF) codes are done.
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[bbg] several compose() codes done.
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11/8
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(bbg) new pnm IO functions, much better now.
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[bbg] fixed part of ocr0.cc: since arguments changed from pix &p to pix *p, it
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wasn't compiling. Must fix the pix b; should it be changed to pix *b?
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:done
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|bbg| Use new Unicode code; change all old code using unsigned char to wchar_t.
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Work started. Take care: old libc functions won't work anymore. Use those
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defined in <wchar.h>. Perhaps we should wait until the review is done and
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gocr is working again.
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:do it in 0.3.1 only.
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?bbg? should we move wert code to a new file?
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(js) we should
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?bbg? should we move all code a /src sudirectory?
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(js) we should, same step should rename .cc to .c
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|bbg| fix Makefile (or better, configure.in) to reflect new files.
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:done
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[bbg] started to change all the for(box=head_data) to for_each_data. CAREFUL:
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you cannot use for_each_data recursively. On the next layer, you must use
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something like for(box=list_get_header; box; box=list_next(box));
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:done
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13/8
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(bbg) finished changing for(box=head_data). Old box_* functions still used,
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must fix.
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(bbg) cleaned 99% of the warning/errors when compiling pgm2asc.cc
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[bbg] fix: warning: control reaches end of non-void function
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`compare_unknown_with_known_chars(pix *, int)'
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:done
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[bbg] check if pgm2asc.cc:474:i = ((pixel(p, x, y) < cs) ? 0 : 1); is useless
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or not.
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(js) useless, relict from older review-changes
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(bbg) vvv is now part of struct environment.
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(bbg) removed Uchar, may conflict with other libs. Use unsigned char.
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15/8
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(bbg) Tim Waugh sent man page; added him in the thanks of README.txt
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[bbg] should break README.txt in: INSTALL, CREDITS, TODO, HISTORY.
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:done
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(bbg) more changes from box_* to list_*
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16/8
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(bbg) added greek letters to the unicode.c functions. Not complete.
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(bbg) added punctuation symbols to the unicode.c functions. Not complete.
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(bbg) added ISO8859-1 support to the unicode.c functions. 0x20-0xFF supported,
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ligatures supported.
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18/8
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[bbg] fix try_to_divide_boxes to the new general linked list.
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[bbg] most for_each_data have a line like box2 = list_get_current, which is
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unnecessary. Change box2 by list_get_current. To avoid clumsiness, it
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maybe a good idea to create a new #define lgc(a) list_get_current(a).
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25/8
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(js) ./src created, .cc,.h,.c moved to src, .cc renamed to .c
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[js] try to get make working (make jconv) see config.h: USE_LIBPNM => HAVE_PNM_H
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|js| list.c L66 data_before ??? what does that mean?
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(bbg) mistyped, fixed.
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list_del should be tested
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:done
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?js? unicode.c there are undefined DEFS L89++ (i have put it in /* */)
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L150++,L185++,L633++
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(bbg) fixed
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[js] make works again (now you can make compilation tests on changes)
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... but SEGFAULT
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26/8
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(bbg) fixed casting warnings in unicode.c; fixed undefined DEFS.
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|bbg| fix the missing LaTeX codes in unicode.c.
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28/8
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?js? configure does not find /usr/X11R6/include/pnm.h, why?
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[js] fixed some bugs to get gocr working, but there are still big bugs
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30/8
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(bbg) fixed all gcc warnings. Some bugs killed in the process.
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(bbg) fixed pnm.c compilation problem
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|bbg| have to fix database.c:102
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|bbg| MANDATORY: change all old linked list code to the new one. This means:
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get rid of box_* functions, the header->data stuff, etc. The new linked
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list code is probably working 100%.
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(bbg) changed $(CXX) to $(CC). C conversion completed!
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(bbg) added jconv and gocr sections to src/Makefile.
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(bbg) new ISO8859-1 codes in unicode.c:convert.
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(bbg) fixed several bugs in list.c, and patched list_del() to return 2 if
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deleted data was list->current.
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1/9
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(bbg) added new list_init(). Use it.
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(bbg) wrote a fix to the list_del()+for_each_data bug. It's not very good, but
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works. Fixes the nested loops too. Now you can use for_each_data
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recursively.
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8/9
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(bbg) more fixes from the old LL system to the new one.
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(js) added list_higher_level(), fix list_lower_level()
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bug fixed free_textlines(),store_boxtree_lines(),store_boxtree_lines()
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(js) review of pgm2asc() finished
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9/9
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(bbg) more fixes from the old LL system to the new one.
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(bbg) fixed the realloc fixes of 8/9 in fix list_lower_level(),
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free_textlines(),store_boxtree_lines(), and fixed list_higher_level(),
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to avoid a blow if realloc fails. Now things continue working.
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(js) compilation bug removed
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(bbg) reviewed context_correction().
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(bbg) moved output_list() and write_img() to output.c. Added output.h.
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?bbg? Since output.c functions are only for debugging, what do you think about
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adding some #ifdef DEBUGs to make a smaller, faster code? It doesn't have
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to be done now, but it's an idea.
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(js) its general good idea, but I would use a DEBUG level
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DEBUG > 2 (or similar)
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during development (until version 1.0) DEBUG should be activated
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by default,
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people could experiment with it and experts could deactivate DEBUG
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(bbg) cleaned old textline functions.
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11/9
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(js) have fixed two major bugs, gocr now works again (but only -m 56 works)
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18/9
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(js) pedantic compiler warnings removed
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bbg: compiling using pam (netpbm, see 22/9) functions generate some warnings,
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which are caused by pam.h and do not affect gocr.
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(js) list_del() does not work proper in context_correction(), fixed
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bbg: list_del return value should be checked always. I'm not sure what
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behaviour you want, so I didn't add the checks.
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(js) malloc_box() bug fixed (memcpy src-dest mismatch)
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21/9
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(js) pgm2asc.c L1954, 2nd scan removed, now much faster, but
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handling of umlaut etc. is missing (similar to gluing function)
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bbg: umlaut is detected. Are you sure it's missing?
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(js) I am away until Sept 30th 2000
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22/9
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|bbg| pnm_readpnmrow() SIGSEGV's. Don't know why.
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?js? (when does it happens? example file?)
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bbg: any file, here. Does it work for you? Are you sure isn't the pam
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functions?
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(bbg) added new code to read pnm's using netpbm package (pam* functions). It
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works, but the drawback is that only recent (August 2000) libraries have
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these functions. Added test for pam.h in configure.
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[bbg] moved example files to ~/tests/. Updated Makefile.in to reflect changes
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and moved the pertinent stuff to tests/Makefile. I don't have experience
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with autoconf, but I think I did it right. :)
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(bbg) fixed tests for unistd.h, which were missing.
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|bbg| How to change gocr.tcl splitted windows proportion? It'd be nice to be
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able to have a larger output area.
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|bbg| gotta fix make.bat. There's a make for DOS, however; should we delete
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make.bat?
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(bbg) wrote INSTALL. Moved (no changes) history from README.txt to HISTORY.
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|bbg| review README.txt. Create a TODO file, BUGS, etc.
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:done
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23/9
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?bbg? database.c::ocr_db(), is any use for box3?
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(bbg) added "Elapsed time".
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(bbg) minor fixes.
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24/9
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|bbg| remove_dust() broken? It's not being used currently, since it's the last
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piece of code using old list functions, and if it's updated, ocr1.c returns
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a bunch of "#hmm, something was going wrong". So, the problem may be in
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ocr1.c. I wrote the patch for remove_dust(), it's in #ifdefs.
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:done
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(bbg) patched rest of remove.c to with new list functions.
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[bbg] remove_pictures() loop is weird. I followed what was there, but it should
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be checked.
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1/10
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(bbg) for_each_data now checks the return value of list_higher_level().
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(bbg) moved some functions to pixel.c
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(bbg) some cleanup
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3/10
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(js) minor changes in Makefiles, add_line_infos() improved
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6/10
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(bbg) fixed bug when inserting a node before header, in list_ins().
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(bbg) fixed bug that made for_each_data use list->header twice: l->fix wasn't
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properly initialized.
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(bbg) added list_sort(). Runned some tests, seems to be OK.
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7/10
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(bbg) updated list_sort() to a faster version. Runned tests.
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(bbg) some minor cosmetic fixes
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|bbg| amiga.h: is it really needed, can someone test it?
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|bbg| As soon as remove_dust is fixed, the old list code can be deleted, which
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would be nice. So, Joerg, can you please fix it? Thanks.
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[js] Have I fixed it?
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:done
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9/10
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(mg) moved gocr.tcl and create_db to new bin folder
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(mg) cleaned up Makefile.in (some subdirs not included yet)
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(mg) created new sub-folder lib
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(mg) created new sub-folder include
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[mg] installation for src is done very rudimentary
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13/10
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(bbg) split README.txt in BUGS, TODO and CREDITS. Joerg: Please write an AUTHORS
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file.
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(bbg) renamed README.txt to README.
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(bbg) added list_empty(). Fixed list_higher_level to avoid empty lists. BTW: I
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think that passing an empty list (l->header==NULL) may blow some of the
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list functions.
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16/10
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(bbg) added AUTHORS.
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22/10
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(js) minor changes, glue_broken_chars() improved, ocr0 updated
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?js? list_del() seems not to work in nested for_each_element()-loops
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[js] remove_dust fixed?
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:done
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23/10
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(bbg) rewrote list_del, using a new kind of fix. It will work as long as the
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data is not freed by the user. A solution to fix this is to pass a pointer
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to a function that will free the data.
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25/10
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(js) glue_broken_chars() recognition of "=" fixed, some other bugs fixed
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(js) some improvements for recognition (ocr0n.c,ocr0.c)
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27/10
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(js) further improvements for better recognition results, polish.tex added
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28/10
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(bbg) changed free_boxtree() to new code
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|bbg| have to fix the reast of the old box code
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:done
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4/11
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[bbg] one of the frees of the new free_boxtree code sigsevs. I dunno why.
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(js) boxlist->element->p is a pointer to existing whole pixmap, do not free this!
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[bbg] I commented the following lines of pgmasc.c: 1430,43,55,67,81,95, since
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they seem to be unnecessary.
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(js) hmm: they are not needed for list_ins, but could be usefull for
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a engine which looks for surrounding boxes. Do you know what I mean?
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It was the last step of the conversion to the
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new list routines. *uf*.
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(bbg) ALL OLD CODE ROUTINES ARE DEPRECATED NOW. Mission successful, waiting for
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permission to delete. :)
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(js) permission granted
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(bbg) Just to reassure, I tested gocr today and it's 100%
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[bbg] change sort_boxes to a call to list_sort. sort_box_func should be
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reviewed
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(js) looks ok to me.
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or tini_list(){
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(js) ???
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?bbg? ini_list(), exclude() & getresult(): should they be deleted?
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(js) not found :(
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I'm working
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on a probability based engine, using neural networks.
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6/11
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(js) get Segmentation fault, => fixed
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14/11
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(bbg) deleted old list code.
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(bbg) moved all detect* functions to detect.c
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(bbg) movde lines functions to lines.c
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22/11
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(bbg) reviewed frame_nn(), mark_nn(), num_hole(), num_obj(). Some other minor
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revisions.
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(bbg) added outbounds() macro in gocr.h. It should be used from now on.
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24/11
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(js) some patches by J.R.V. Zandt added
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?js? have still problems detecting pnm-libs via autoconf/configure
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25/11
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(bbg) added HTML support for all ISO8859-1 characters in unicode.
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27/11
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(bbg) some fixes in unicode.*
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|bbg| whatletter needs a serious revision.
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30/11
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[js] split ocr0.c (compiles faster now), gcc 2.95.1 "bug" removed?
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10/12
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[bbg] Unicode is now supported. Some tests should be made, specially testing
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UNKNOWN/PICTURE and >0xFF characters.
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17/12
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[js] pamlib,netlib,pnmlib detection (configure.in) changed
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21/12
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[jrv] pgm2asc changes:
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context_correction() BUGFIX: test whether
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previous(previous(current)) exists, before trying to dereferencing the pointer.
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follow_path() introduced: follow a path, recording transitions
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between dark and light.
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xrealloc() introduced: safe memory allocation
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loop() optimization: move direction test outside loop, simplify loop test
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measure_pitch() introduced: detect monospaced font and measure the pitch
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pgm2asc(): if font is monospaced, set spc per measured character spacing.
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A few wording fixes.
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05/01
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(js) some fixes in glue_broken_chars results in good ";" and "!" detection
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engine updated (examples/font1.pbm should work perfect)
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19/02
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(js) "make dist" now automaticly makes packaging (gocr-x.y.z.tgz)
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does the Makefile in api working (especially make clean/proper)?
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"make install" should work too
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bbg: API makefiles work, but there's no make proper (use distclean instead)
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I'd appreciate if someone could test the configure and libpnm. install is
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not tested yet.
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19/04
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[js] USE_UNICODE defined as default in gocr.h (test it), some fixes to get
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-f TeX, -f HTML running, fixed bug in lines.c (unterminated string)
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measure_pitch extended to 12<width<150 (see example)
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15/05
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[js] list.c line 225+226 realloc( .., (l->level+2)..) correct? (S.Niemz bug)
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30/07
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?js? readpnm if USE_libpnm does not the job of old readpgm (for pbm-files)
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22/08
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(js) gcc -Wall -pedantic warnings fixed, ocr0.c wchar_t used by default
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we should switch to wchar_t, its more flexible and ANSI (?)
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and the huge number of "#ifdef USE_UNICODE" statements are looking bad
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?js? can someone compile test on a machine without wchar.h? (FREEBSD?)
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25/08
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?js? I got following warning by gcc 2.95.3 20010315 (-Wall -pedantic):
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lines.c: In function 'store_boxtree_lines':
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lines.c:136: warning: implicit declaration of function 'wcsdup'
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but I included <wchar.h>. Does anybody understand this???
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hmmm ... Is it because of not ANSI (but GNU) extension?
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What should we do with non-standart C-functions?
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May be therefore I got the complains from FREEBSD users?
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30/08
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(js) pgm2asc.c, output.c simplified, improvement of char-devision
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08/02/2002
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?js? all possible SIGSEGVs in list.c fixed
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15/02/2002
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[js] ocr0.c will use setac() in future manipulating struct box - tac,wac
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and c, if chars are very similar this will make context correction more
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easyly, filtering will be more easily too (not fully implemented)
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25/02/2002
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[js] box->obj added for storing more than one char
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02/06/2002
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(jb) added special encodings for '&', '<', '>' to HTML decoder
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05/06/2002
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[jb] job_t introduced (same patch as sent to the mailing list)
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Only local variables (configuration and pixmap) of main() are
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moved inside job_t yet.
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[jb] boxlist and linelist converted to job_t
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[jb] Temorary introduction of global variable JOB (of type job_t)
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This variable will be removed, while all functions are converted to
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receive either an job_t pointer or the needed values.
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[jb] n_run, env, db_path and ppo converted to job_t
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[jb] converted dblist
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[jb] renamed init_job and free_job to job_free and job_init
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[jb] converted nearly all global variables (except warn and debug) to
|
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job_t. Used JOB as new temporaryr global variable.
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|
Overview of the renaming (some old variables are combined to a new one):
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|
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OLD VAR NAMES NEW VAR NAME
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* main():inam JOB->src.fname
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* main():p JOB->src.p
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env.p
|
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* main():init JOB->tmp.init_time
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* ppo JOB->tmp.ppo
|
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* n_run JOB->tmp.n_run
|
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* dblist JOB->tmp.dblist
|
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* boxlist JOB->res.boxlist
|
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* linelist JOB->res.linelist
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* lines JOB->res.lines
|
|
* env.avX JOB->res.avX
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* env.avY JOB->res.avY
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|
* env.sumX JOB->res.sumX
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|
* env.sumY JOB->res.sumY
|
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* env.numC JOB->res.numC
|
|
* main():cs JOB->cfg.cs
|
|
env.cs
|
|
* main():spc JOB->cfg.spc
|
|
* main():mo JOB->cfg.mode
|
|
env.mode
|
|
* main():dust_size JOB->cfg.dust_size
|
|
* main():numo JOB->cfg.only_numbers
|
|
only_numbers
|
|
* main():verbose JOB->cfg.verbose
|
|
env.vvv
|
|
* main():out_format JOB->cfg.out_format
|
|
* main():lc JOB->cfg.lc
|
|
* env.db_path JOB->cfg.db_path
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|
|
[jb] introduced list_and_data_free
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|
|
|
|jb| get rid of JOB.
|
|
|jb| decide on last global variables "warn" and "debug"
|
|
js: its thought for debugging, we should use MACROS WARN or DEBUG
|
|
|jb| eliminate static buffers inside fucntions.
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|
|
|
30/06/2002
|
|
(js) gocr.h: struct box: modifier now wchar_t
|
|
mark things, which need changes with "ToDo:" directly in the sources,
|
|
so that we can grep for it and see that there are planed changes
|
|
|
|
05/01/2003
|
|
(js) ocr0.c: engine splitted in groups of characters (mostly pairs)
|
|
num_hole called once for every char, result is stored in a table
|
|
?js? cvs ci jocr does not work since 2003? (it tries to update jocr/CVS)
|
|
have cvs-1.11.1p1
|