How do I make a Perl Tk::Frame look like a LCD? - linux

I want a Tk::Frame to look like a LCD. Inside the frame I have a Tk::Label and a Tk::Entry. Does anyone know a font name or method to do this, maybe a Perl module?

I've used Steve Lidie's Tk::LCD to make an alarm clock, but had to hack in a few missing features.

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What kind of LUA encoding is that?

everyone,
I am not so familiar with coding but I have been looking for hours now without answer. Maybe because I do not know what am I looking for.
I have found an LUA code with the below encoded code,
I was wondering which kind of encoding it is? Is there a specific name for it, is there a way to decrypt it? for the curious one, it looks like :
return(function(aaEE_IIlIllIlII,aaEE_lIlIIIIIlI,aaEE_llIIlIIllllIl)local aaEE_IIllllIIlIIllIlIIII=string.char;local aaEE_lIlllIlIllIIIlIlIl=string.sub;local aaEE_IlIlIIIllIlIIIllllIIIIIIl=table.concat;local aaEE_IIIIIIlllIIIIllllIlIII=math.ldexp;local aaEE_IIIlIIllIIllIIlIIllIllII=getfenv or function()return _ENV end;local aaEE_lIllIIIIIllllIlIlIl=select;local aaEE_lIlIlllIllIIII=unpack or table.unpack;local aaEE_llllIlllllIlIlIl=tonumber;local function aaEE_lllIllIIIlIIlllIIll(aaEE_IIlIllIlII)local aaEE_llllIIllllIll,aaEE_lIIlIlllIlllIIIllIIlIllI,aaEE_lIlIlllIllIIII="","",{}local aaEE_IlIllIlllIIlIllllIll=256;local aaEE_IIllIllIIIlIIlllIIlIII={}for aaEE_lIlIIIIIlI=0,aaEE_IlIllIlllIIlIllllIll-1 do aaEE_IIllIllIIIlIIlllIIlIII[aaEE_lIlIIIIIlI]=aaEE_IIllllIIlIIllIlIIII(aaEE_lIlIIIIIlI)end;local aaEE_lIlIIIIIlI=1;local function aaEE_IlIlllllllIIlI()local aaEE_llllIIllllIll=aaEE_llllIlllllIlIlIl(aaEE_lIlllIlIllIIIlIlIl(aaEE_IIlIllIlII,aaEE_lIlIIIIIlI,aaEE_lIlIIIIIlI),36)aaEE_lIlIIIIIlI=aaEE_lIlIIIIIlI+1;local aaEE_lIIlIlllIlllIIIllIIlIllI=aaEE_llllIlllllIlIlIl(aaEE_lIlllIlIllIIIlIlIl(aaEE_IIlIllIlII,aaEE_lIlIIIIIlI,aaEE_lIlIIIIIlI+aaEE_llllIIllllIll-1),36)aaEE_lIlIIIIIlI=aaEE_lIlIIIIIlI+aaEE_llllIIllllIll;return aaEE_lIIlIlllIlllIIIllIIlIllI end;aaEE_llllIIllllIll=aaEE_IIllllIIlIIllIlIIII(aaEE_IlIlllllllIIlI())aaEE_lIlIlllIllIIII[1]=aaEE_llllIIllllIll;while aaEE_lIlIIIIIlI<#aaEE_IIlIllIlII do local aaEE_lIlIIIIIlI=aaEE_IlIlllllllIIlI()if aaEE_IIllIllIIIlIIlllIIlIII[aaEE_lIlIIIIIlI]then aaEE_lIIlIlllIlllIIIllIIlIllI=aaEE_IIllIllIIIlIIlllIIlIII[aaEE_lIlIIIIIlI]else aaEE_lIIlIlllIlllIIIllIIlIllI=aaEE_llllIIllllIll..aaEE_lIlllIlIllIIIlIlIl(aaEE_llllIIllllIll,1,1)end;aaEE_IIllIllIIIlIIlllIIlIII[aaEE_IlIllIlllIIlIllllIll]=aaEE_llllIIllllIll..aaEE_lIlllIlIllIIIlIlIl(aaEE_lIIlIlllIlllIIIllIIlIllI,1,1)aaEE_lIlIlllIllIIII[#aaEE_lIlIlllIllIIII+1],aaEE_llllIIllllIll,aaEE_IlIllIlllIIlIllllIll=aaEE_lIIlIlllIlllIIIllIIlIllI,aaEE_lIIlIlllIlllIIIllIIlIllI,aaEE_IlIllIlllIIlIllllIll+1 end;return table.concat(aaEE_lIlIlllIllIIII)end;
https://pastebin.com/4HU5pFHZ
Thank you for your answers and explanation
Its called obfuscation (you can look up "lua obfuscator" or "script obfuscator" for more information) and just makes the code unreadable. I've already seen this obfuscation but i can't recall the name of it, its a paid one tho.
This is the best encryption see here.
1 = Let's encrypt lua code com or: LuaEncrypt.exe.
2 = Let's chamar or encrypted lua code.
3 = To call this encrypted code, we will use AmsLuac.dll created in C++
https://github.com/AmsPluginsBox/Encrypt-Lua-Code

Matlab function defintion method that takes string as the definition (MFILE)

there is this method I used the other day and I have forgotten the details, which in we used a syntax like this:
f=//command//(x,'sin(x)');
something like this.
im not sure if the syntax is fully correct, or what the right command is. but after this we could simply ask for the f(x) value like this:
x= 0;
y= f(x);
and then the results were y=0;
What you are asking for is usually not recommendable. Please check if a simple anonymous function also fits your requirements:
f=#(x)(sin(x))
In case you really need to evaluate from a string:
f=str2func('#(x)sin(x)')
I would advice against the second option unless absolutely required, it can lead to hard to debug errors.
well I found the answer myself and it was "inline" command; :)
f=inline('sin(x+y+z)','x','y','z');
you can add as much variables as needed too.

What old language is this?

A friend of mine sended bunch of code for me to build a software. However, I do not recognize language and my friend is no coder. One thing I'm sure about though. The code is something like 20-40 years old.
Code was originally used in electrical works.
Character limit per line seems to be 20 characters.
Can someone recognize this language? I'm also looking for manuals for this language if possible.
10:"K": PAUSE "IK":
CLEAR
15:P=1: INPUT "ETR=PRIN
T, 0=NO? ";P
20:DIM L(20),R(20),X(20
),B(1),G(1),Q(1),O$(
1)*24
22:IF P=1 INPUT "K. /DA
TE? ";O$(0)
24:IF P=0 GOTO 30
26:INPUT "N:0 AND NAME?
"; O$(1)
28:LPRINT O$(1): LPRINT
"KKS/";OS(0)
30:INPUT "(KVA)? ";S
35:IF P=1 LPRINT "KVA",
S
40:R=3.31 :Z=4
...
I searched for this language and PowerBasic seems to be close to it, but it contains many other features what this code lacks. Any guesses?
Edit 1
It seems that there were typos. No wonder "P=!" or "0$(0) didn't make any sense.
Edit 2
I accepted Gaby's answer because code seems to be very close to GW-Basic. Also found a manual for the language which works perfectly: http://www.antonis.de/qbebooks/gwbasman/
Thanks for the help!
Edit 3
Got some new information. Language might actually be something called "Nova Basic" from 1975. I'm unable to find manual for that language, but at least this gives me a new direction.
It's definitely a BASIC variant, one of those like in the early micro-computer days, before things like VB and structured coding came into play :-)
However, it has a few non-recognisable aspects such as:
the statement "K".
the assignment P=!, unless that ! should be a 1.
the use of variables starting with a numeric: 0$(0), unless you've mistakenly typed an O (owe) in as a 0 (zero).
None of those were very common in BASICs of the day though keep in mind the language wasn't standardised to the same level as something like C is nowadays. Everything else seems pretty standard: input, printing, assignment, array dimensioning, and so on.
Given the line length limit, the domain (KKS and KVA are both electrical terms) and the weird syntax variations, I'd say it was for one of the early programmable calculators, such as Casio, Texas Instruments or Sharp (though not necessarily those specific brands).
It reminds me of GW-BASIC
Example code at http://fr.wikipedia.org/wiki/GW-BASIC
Not a lot information in your code. Maybe QBASIC ? http://fr.wikipedia.org/wiki/QBasic

How to read chrome extension development documentation?

Looks like the documentation is stable. But I am a bit frustrated about its conventions. For example, what is the field name in the following screenshot? Any one help point where the guideline for reading the documentation is?
name in this case is an optional name you can use for the port. You use it like this:
var port = chrome.runtime.connect({name:"testName"});
After that, port.name would be "testName".
connectInfo is defined to be an object meaning that any field listed indented under it, like name is, is a part of it.

How can I access the bit representation of a file using Scheme?

If I had a file called raw_text.txt, is there a way I could iterate through each bit?
I see the following but am confused on how to use it:
http://www.gnu.org/software/mit-scheme/documentation/mit-scheme-ref/File-Manipulation.html
— procedure: file-attributes/mode-string attributes
The mode string of the file, a newly allocated string showing the file's mode bits. Under unix, this string is in unix format. Under Windows, this string shows the standard “DOS” attributes in their usual format.
EDIT: I am using mit-scheme
It's implementation-specific. On the Racket side of things, there are a few libraries:
http://planet.racket-lang.org/display.ss?package=bitsyntax.plt&owner=tonyg
http://planet.racket-lang.org/display.ss?package=bit-io.plt&owner=soegaard
You can probably use something like the binary-parse library as well: http://okmij.org/ftp/Scheme/binary-io.html, as long as your implementation of Scheme can support it.
Under MIT Scheme, you can use the bit-string functions.
I haven't actually tried to do anything with this, but I think you're looking for this section of the mit-scheme docs: Input/Output. Specifically the file ports and input procedures sections.
I didn't see anything specifically about reading the binary bits, but if it's character bytes you want, it looks like there are procedures for that. Maybe you want to do something like this?
(call-with-input-file "raw_text.txt" <procedure>)
or
(call-with-binary-file "raw_text.txt" <procedure>)
Where <procedure> will take the file port and use the input procedures to read things from that file.
Just out of curiosity, what are you trying to do?
EDIT: It appears that someone did a write up on this here.

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