sos | Home-made almost operating system
kandi X-RAY | sos Summary
kandi X-RAY | sos Summary
This is my personal operating system project. It targets the 32-bit ARMv7-A architecture. The main target board is qemu, but progress is being made on the Raspberry Pi 4B target! Despite being very imited, this one-person project has actually made a great deal of progress and continues to improve.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of sos
sos Key Features
sos Examples and Code Snippets
Lines of Code : 8License : Permissive (MIT License)
Copydef encrypt(message: str) -> str:
"""
>>> encrypt("Sos!")
'... --- ... -.-.--'
>>> encrypt("SOS!") == encrypt("sos!")
True
"""
return " ".join(MORSE_CODE_DICT[char] for char in message.upper()) def decrypt(message: str) -> str:
"""
>>> decrypt('... --- ... -.-.--')
'SOS!'
"""
return "".join(REVERSE_DICT[char] for char in message.split()) Community Discussions
Trending Discussions on sos
QUESTION
For example if:
...ANSWER
Answered 2021-Jun-15 at 11:14If you want to use sort or sorted you have to define a key function for the comparison. This key function has to give back a tuple of the number of vocals and the position of the first vocal.
QUESTION
I want to get/identify the object who has the Id "C003", for example, to print all data of that object.
I receive the id typed with cin and store in a string variable.
I've been reading many webpages and YouTube tutorials that use function find() or find_if(), but those examples use only numbers, so the third parameter is just a number, like 2.
In my case, I have a list with objects, and my conditional is this:
...ANSWER
Answered 2021-Jun-08 at 21:03One problem is: you only increment the iterator if the name matches. If the name does not match, the iterator stays the same, and it gets into an infinite loop.
Try moving the iterator outside the if statement:
QUESTION
In TTN they are no longer supporting large decoders.
I know what the decoder needs to be in TTN, it is in my DECODER function, but dont know how to execute it in the function node.
If you use inject Payload [1,2,3] RAW, it injects the raw payload that is msg.payload.payload.uplink_message.frm_payload into the decoder.
The DECODER needs to decode the raw payload and output it in msg.payload.uplink_message.decoded_payload
If you use inject Payload [1,2,3] Decoded in the flow you see how the end result needs to look like and the decoded msg.payload.uplink_message.decoded_payload
I am still learning JavaScript.
The code in the function node
...ANSWER
Answered 2021-Jun-07 at 14:02The question still really isn't clear, but if you want to use that code in a function node then I suggest the following:
Put that code into the "On Start" tab of the function node, but change the first line to the following:
QUESTION
ANSWER
Answered 2021-Jun-06 at 06:27the problem is that the size is different for different screens.
The problem is you're doing things like this:
QUESTION
I am currently trying to make a .wav file that will play sos in morse.
The way I went about this is: I have a byte array that contains one wave of a beep. I then repeated that until I had the desired length. After that I inserted those bytes into a new array and put bytes containing 00 (in hexadecimal) to separate the beeps.
If I add 1 beep to a WAVE file, it creates the file correctly (i.e. I get a beep of the desired length). Here is a picture of the waves zoomed in (I opened the file in Audacity): And here is a picture of the entire wave part:
The problem now is that when I add a second beep, the second one becomes completely distorted: So this is what the entire file looks like now:
If I add another beep, it will be the correct beep again, If I add yet another beep it's going to be distorted again, etc. So basically, every other wave is distorted.
Does anyone know why this happens?
Here is a link to a .txt file I generated containing the the audio data of the wave file I created: byteTest19.txt
And here is a lint to a .txt file that I generated using file format.info that is a hexadecimal representation of the bytes in the .wav file I generated containing 5 beeps (with two of them, the even beeps being distorted): test3.txt
You can tell when a new beep starts because it is preceded by a lot of 00's.
As far as I can see, the bytes of the second beep does not differ from the first one, which is why I am asking this question.
If anyone knows why this happens, please help me. If you need more information, don't hesitate to ask. I hope I explained well what I'm doing, if not, that's my bad.
EDIT Here is my code:
...ANSWER
Answered 2021-Jun-04 at 09:07The problem
Your .wav file is Signed 16 bit Little Endian, Rate 44100 Hz, Mono - which means that each sample in the file is 2 bytes long, and describes a signed amplitude. So you can copy-and-paste chunks of samples without any problems, as long as their lengths are divisible by 2 (your block size). Your silences are likely of odd length, so that the 1st sample after a silence is interpreted as
QUESTION
I am new in kivy, I created a form that uses 2 spinner, the 1st spinner contain a list of values that when selected it will call a function from .py file and change the values of the 2nd spinner. But whenever i select a value from the 1st spinner the "AttributeError: 'super' object has no attribute 'getattr'" is displayed. I've tried so many things but couldn't make it work, Please any attempt is appreciate.
My .py file:
...ANSWER
Answered 2021-May-13 at 13:33You are trying to reference a non-existent id in the line:
QUESTION
i'm trying to extrapolate a json if a string is contained. My json is this:
...ANSWER
Answered 2021-May-11 at 08:42= is used for assignment but not for comparison.
== or === for comparison.
Since for loop starts perfectly but when it goes to if condition, first of all you're not checking for equality instead you are assigining to json[i].name which is the first element/object of json arrray to whatever ~"{HOST.NAME}" returns which would be -1(see the below snippet).
Then you console.log that object i.e json[0] and you're assigning the result of JSON.stringify(json[i]) to res and return the result.
QUESTION
I have drop down menu with 2 arguments, title and id. drop down selected item will show just title arguments but i want to pass title's id to the another widget like future builder, so any idea?
...ANSWER
Answered 2021-May-09 at 08:15From the example that you provided I see that you are creating the dropdown using the string but rather you should create it using the list object that you mentioned in the example. I have created a sample example for you check it out and let me know if it works
QUESTION
Im trying to get realtime location with pointing on the Google Map. Currently i successfully get the latitude and longitude in realtime and it will update everytime to a getter, setter class called sosrecord.getLatitude() and sosrecord.getLongitude(). I want to point the google map based on the updated latitude and longitude. But everytime when i put the getter on the LatLng latLng = new LatLng(sosrecord.getLatitude(), sosrecord.getLongitude()); it will return me Null and eventually crash the app due to java.lang.NullPointerException: Attempt to invoke virtual method 'double java.lang.Double.doubleValue()' on a null object reference It should point the current location when user click on a button. Sorry if the code sample below is messy, hope someone could help me with this issue. Thanks.
Main.java
...ANSWER
Answered 2021-May-08 at 07:35The thing is that when you open MainActiity that time onMapReady() called first automatically before LocationCallback. Eventually, it will return null latitude and Longitude.
However, your problem is that you haven't assigned your map fragment.
first of all, you need to assign in onLocationResult() below the for loop.
QUESTION
i have the below code. this works fine when i try to export a list of records to excel with small number of records (around 200 records):
...ANSWER
Answered 2021-May-08 at 04:28as S.O link commented by Paul Samsotha says, i should have used StreamingOutput instead of ServletOutputStream. so the method should be rewritten as so:
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