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**Maxpower3** · 11-20-2021, 09:54 PM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by inflex View Post

The last byte is the string-length of the layer name.

damn, I'm stupid, I have it in front of me, it's late here

**inflex** · 11-21-2021, 02:04 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Have added 8th rotation, and now encoding matrix as well.

https://raw.githubusercontent.com/in...ode-string.cpp

Code:

    { 'R', 'Q', 'P', 'O', 'N', 'M', 'L', 'K' }, // 'W'
    { 'S', 'R', 'Q', 'P', 'O', 'N', 'M', 'L' }, // 'X'
    { 'T', 'S', 'R', 'Q', 'P', 'O', 'N', 'M' }, // 'Y'
    { 'U', 'T', 'S', 'R', 'Q', 'P', 'O', 'N' }, // 'Z'
    { 0, 0, 0, 0, 0, 0, 0, 0 }, // '['
    { 0, 0, 0, 0, 0, 0, 0, 0 }, // '\'
    { 0, 0, 0, 0, 0, 0, 0, 0 }, // ']'
    { 0, 0, 0, 0, 0, 0, 0, 0 }, // '^'
    { 0, 0, 0, 0, 0, 0, 0, 0 }, // '_'
    { 0, 0, 0, 0, 0, 0, 0, 0 }, // '`'
    { '6', '5', '4', '6', '5', '4', '6', '5' }, // 'a'
    { '7', '6', '5', '7', '6', '5', '7', '6' }, // 'b'
    { '8', '7', '6', '8', '7', '6', '8', '7' }, // 'c'
    { '9', '8', '7', '9', '8', '7', '9', '8' }, // 'd'
    { '0', '9', '8', '0', '9', '8', '0', '9' }, // 'e'
    { '1', '0', '9', '1', '0', '9', '1', '0' }, // 'f'
    { '2', '1', '0', '2', '1', '0', '2', '1' }, // 'g'
    { '3', '2', '1', '3', '2', '1', '3', '2' }, // 'h'
    { '4', '3', '2', '4', 'u', '2', '4', '3' }, // 'i'
    { '5', '4', '3', '5', '4', '3', '5', '4' }, // 'j'
    { 'p', 'q', 'r', 'v', 't', 'u', 'v', 'w' }, // 'k'
    { 'q', 'r', 's', 'w', 'v', 'v', 'w', 'x' }, // 'l'
    { 'r', 's', 't', 'x', 'v', 'w', 'x', 'y' }, // 'm'
    { 's', 't', 'u', 'y', 'w', 'x', 'y', 'z' }, // 'n'
    { 't', 'u', 'v', 'z', 'x', 'y', 'z', 'k' }, // 'o'
    { 'u', 'v', 'w', 'k', 'y', 'z', 'k', 'l' }, // 'p'
    { 'v', 'w', 'x', 'l', 'z', 'k', 'l', 'm' }, // 'q'
    { 'w', 'x', 'y', 'm', 'k', 'l', 'm', 'n' }, // 'r'
    { 'x', 'y', 'z', 'n', 'l', 'm', 'n', 'o' }, // 's'
    { 'y', 'z', 'k', 'o', 'm', 'n', 'o', 'p' }, // 't'
    { 'z', 'k', 'l', 'p', 'n', 'o', 'p', 'q' }, // 'u'
    { 'k', 'l', 'm', 'q', 'o', 'p', 'q', 'r' }, // 'v'
    { 'l', 'm', 'n', 'r', 'p', 'q', 'r', 's' }, // 'w'
    { 'm', 'n', 'o', 's', 'q', 'r', 's', 't' }, // 'x'
    { 'n', 'o', 'p', 't', 'r', 's', 't', 'u' }, // 'y'
    { 'o', 'p', 'q', 'u', 's', 't', 'u', 'v' }, // 'z'
75785zn11111111
badcapsgfghfghf
75785zn11111111

**inflex** · 11-21-2021, 02:35 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

There's actually some quirks to the way they've encoded those strings; if it's not part of the alnum set, then the character isn't encoded, but I can't work out if the rotation moves to the net step, or if it resets.

Trying to find some clear example strings in the data to check.

Moving pointer ahead...Header 1: 'O95w-28ps49m 02v9o.' => 'Tebl-gdyxjfr ehodv.'
UKV 1: 1
7 bytes allocated for string
Copying data to string
Moving pointer ahead...Header 1: 'G34vS4z' => 'LiakBao'
Empty string
Header 1: '' => ''
14 bytes allocated for string
Copying data to string
Moving pointer ahead...Header 1: 'Vvy4u cc, cfcg' => 'Aprii 12, 1937'

**inflex** · 11-21-2021, 03:43 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Fixed up an issue in column 4 data decoder ( was offset by a few chars )

Moving pointer ahead...Header 1: 'O95w-28ps49m 02v9o.' => 'Tebo-gdykjfr ehodv.'
UKV 1: 1
7 bytes allocated for string
Copying data to string
Moving pointer ahead...Owner: 'G34vS4z' => 'LianBao'
3 bytes allocated for string
Copying data to string
Moving pointer ahead...Password: 'YZM' => 'DFT'
16 bytes allocated for string
Copying data to string
Moving pointer ahead...Date: 'J7kw68m ff, beef' => 'October 89, 2018'
Empty string
Header 5: '' => ''
Empty string
Header 6: '' => ''
6 bytes allocated for string
Copying data to string
Moving pointer ahead...Header 7: 'YZMded' => 'DFT002'

Moving pointer ahead...Header 1: 'O95w-28ps49m 02v9o.' => 'Tebo-gdykjfr ehodv.'
UKV 1: 1
7 bytes allocated for string
Copying data to string
Moving pointer ahead...Owner: 'G5u9k8s' => 'Landrex'
8 bytes allocated for string
Copying data to string
Moving pointer ahead...Password: 'B!Z@6sob' => 'G!E@amx2'
13 bytes allocated for string
Copying data to string
Moving pointer ahead...Date: 'Eksq dc, beeh' => 'July 02, 2016'

**Maxpower3** · 11-21-2021, 05:33 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by inflex View Post

Fixed up an issue in column 4 data decoder ( was offset by a few chars )

ha I was wrong , happy if that can help you

**inflex** · 11-21-2021, 05:50 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by Maxpower3 View Post

ha I was wrong , happy if that can help you

Some of the dates are coming out strange; not sure if that's because they're using a different calendar (non-Georgian) or the data isn't being decoded right.

ie, I'll get "October 89, 3899" or similar

**Maxpower3** · 11-21-2021, 06:05 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

others chars not coded ,I would rather be sure

i will look for the dates

Attached Files

**inflex** · 11-21-2021, 06:12 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

So far all the sequential, unbroken strings are decoding correctly that I can ascertain, though they don't contain numbers ( decoded ).

Two things I need to clarify are;

1) Does the rolling index halt, or reset (to zero) when a non-alpha/numerical character is encountered in the string? ( I'm strongly suspecting a reset to zero )

2) Are the numbers being correctly decoded ( probably just have to go through many files and see statistically what the decoding results are. Lower value (0~6) seem okay but there might be an issue with 8~9 :shrug:

**inflex** · 11-21-2021, 06:22 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

If I modify my decoder, and make it so it keeps rolling with the rolling index on a '-', we start to see => Header 1: 'O95w-28ps49m 02v9o.' => 'Tebo-ictnjfu ehodv.'

Which makes me think that the first part there should be Tebo-ictview, not Tebo-ictnjfu, because if you look iat it, "njfu" is actually close to "view" as the last 3 letters are one letter too advanced, jfu => iew; so that makes me think that it should be Tebo-ictview... best I go fix my decoding system

Code:

int TVW_decode_string( char *dest, char *s, ssize_t l ) {
	ssize_t i = 0;
	int r = 0; // roll position
	while ( i < l && *s ) {
		if (isalnum(*s)) {
			dest[i] = TVW_dec[(ssize_t)*s][r % 8];
			r++;
		} else if (*s == '-') {
			dest[i] = *s;
			r++;
		}
		else {
			dest[i] = *s; 
			r=0;
		}
//		r++;
		i++;
		s++;
	}
	dest[l] = 0;
	return 0;
}

**Maxpower3** · 11-21-2021, 06:34 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

continuous rotation in relation to the number of characters

zzzzzzz = u t s r q p o
zzzzzzzzzz= u t s r q p o n m l

I saw that I made mistakes in the decoding

**Maxpower3** · 11-21-2021, 06:37 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by inflex View Post

If I modify my decoder, and make it so it keeps rolling with the rolling index on a '-', we start to see => Header 1: 'O95w-28ps49m 02v9o.' => 'Tebo-ictnjfu ehodv.'

if you change this, the program no longer recognizes the filename and therefore does not accept it, yes it designates the type of files

**inflex** · 11-21-2021, 06:58 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

The decoding is fine until the 9th character; ie, we decode 'Y960v50n' to 'December' correctly but something changes in the algorithm after the 8th char and I'm not sure what yet.

I'm not modifying the code in the file, I'm trying to make my decoder function correctly convert 'O95w-28ps49m' to 'Tebo-ictview' based on an assumption that that is what the header *should* be decoded as.

Right now we get the first 8 characters right if I don't increase the rolling-index for the '-' ( ie, only increase for 0-9, a-z, A-Z ), but the algorithm still breaks after the 8th character and interestingly there's no mapping from a 's' encoded char to a 'v' output (closest is 'k' input for rolling-index zero (0).

However after that char, the rest of the letters are then 1 index too far ahead.

Maybe the header string isn't meant to be decoded to "Tebo-ictview" but it seems like it would be a natural thing given that we have "Tebo-ict" for the first 8 characters of decoded string.

**Maxpower3** · 11-21-2021, 07:17 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

ssssssssssssss = nmlkzyxwvunmlk

look 9th

my decoder is bad
s : n m l x z y x w

**inflex** · 11-21-2021, 07:21 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by Maxpower3 View Post

ssssssssssssss = nmlkzyxwvunmlk

look 9th

How did you do this conversion?

The mapping I have now ends after 8th

Code:

	 { 'n', 'm', 'l', 'k', 'z', 'y', 'x', 'w' }, // 's'

**Maxpower3** · 11-21-2021, 07:27 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by inflex View Post

How did you do this conversion?

The mapping I have now ends after 8th

Code:

	 { 'n', 'm', 'l', 'k', 'z', 'y', 'x', 'w' }, // 's'

I force the number of characters to have the rest of the decoding

Attached Files

**inflex** · 11-21-2021, 07:30 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by Maxpower3 View Post

I force the number of characters to have the rest of the decoding

Oh very smart!

**inflex** · 11-21-2021, 07:42 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by Maxpower3 View Post

I force the number of characters to have the rest of the decoding

Based on your technique, it appears that there's 10 columns total for the normal letters; I'll code this up and see how it goes then.

Attached Files

**Maxpower3** · 11-21-2021, 07:43 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by inflex View Post

Oh very smart!

ssssssssssssss = nmlkzyxwvu_nmlk
______________12345678910_1234

you notice that after 10th it starts again

**Maxpower3** · 11-21-2021, 07:45 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

Originally posted by inflex View Post

Based on your technique, it appears that there's 10 columns total for the normal letters; I'll code this up and see how it goes then.

exactly, we saw it at the same time

@paul :look your mp sometimes

**inflex** · 11-21-2021, 07:55 AM

Re: WANTED: Teboview / TVW file format specification to write OpenBoardview decoder

I have confirmed that it should read "Teboview-ict file" ( O95w-28ps49m 02v9 ). With that knowledge I will now try fix my algorithm

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