early | Early checks for environment variables availability | DNS library

I have been working with React for the past two or so years, and with @media queries since the early 2000's. I have just been onboarded onto a new project where they are building React components in a fairly novel way, at least to my experience.

I'll place a snippet below to illustrate what I mean, but essentially they do not use .js and .css files as I usually do, but rather use .tsx and .ts files. They create a component in the .ts file and immediately apply the styling. It looks like this:

//.ts file

Situation: I am working with a crypto library called embedded disco, I have a demo working on my PC but when porting it over to the MCU I get a hard fault when executing a library procedure. In the faulting code, the library is trying to simply copy the content of one strobe_s struct into another strobe_s. This is done twice: once for s1 and once for s2. For s1, the library simply assigns the dest. struct to the source struct. For s2 however, such an assign gave a hard fault. As the Cortex-M ISA requires aligned memory accesses, I reckoned that replacing the assignment with a memcpy should fix the problem. Nevertheless, simply stepping into memcpy using the debugger results in a hard fault! I.e. I have a breakpoint at the line with the memcpy and when stepping inside the fault handler is called! I have used memcpy to fix misaligned memory accesses in other parts of the code just fine...

MCU: STM32L552ZET6QU

Faulting code:

The code below is my modification of the original library code where the assignment to *s2 was replaced by a memcpy. The original code from the library's github was:

This test program

Problem

I have a large JSON file (~700.000 lines, 1.2GB filesize) containing twitter data that I need to preprocess for data and network analysis. During the data collection an error happend: Instead of using " as a seperator ' was used. As this does not conform with the JSON standard, the file can not be processed by R or Python.

Information about the dataset: Every about 500 lines start with meta info + meta information for the users, etc. then there are the tweets in json (order of fields not stable) starting with a space, one tweet per line.

This is what I tried so far:

1. A simple data.replace('\'', '\"') is not possible, as the "text" fields contain tweets which may contain ' or " themselves.
2. Using regex, I was able to catch some of the instances, but it does not catch everything: re.compile(r'"[^"]*"(*SKIP)(*FAIL)|\'')
3. Using literal.eval(data) from the ast package also throws an error.

As the order of the fields and the legth for each field is not stable I am stuck on how to reformat that file in order to conform to JSON.

Normal sample line of the data (for this options one and two would work, but note that the tweets are also in non-english languages, which use " or ' in their tweets):

I am currently working on a labview project and have found myself stuck on how to make a while loop exit when I press the abort (stop) button. For a simple while loop I understand how to do this - but the problem is that this while loop is nested inside of an event structure and I'm guessing that the button cannot be pressed while the loop is executing. Attached here is a picture of part of my code (that contains this specific event case which is causing me problems): To spend a little more time explaining what the problem is - I think the code is doing what I want it to do (namely output a set of commands in a repeated cycle with a wait timer) but I cannot stop the code mid cycle (pressing the abort button with my mouse does nothing - as in the button doesn't show it being pressed and the indicator shows no change, I also can't use any other functionality of my program during the cycle which I'm assuming is related). And I do not want to stop the labview program from running entirely - just the code inside the while loop pictured above. This is what the front panel is configured too for completeness:

Essentially what I want to happen is the while loop to execute when I press DWG and in the middle of the cycle be able to abort it. Sorry if my code seems a little messy. Additionally, I've tried the same code with a for loop originally (via a conditional terminal so it could stop early) and that didn't work either. Thanks for any help I appreciate it!

I am using a 3.5: TFT LCD display with an Arduino Uno and the library from the manufacturer, the KeDei TFT library. The library came with a bitmap font table that is huge for the small amount of memory of an Arduino Uno so I've been looking for alternatives.

What I am running into is that there doesn't seem to be a standard representation and some of the bitmap font tables I've found work fine and others display as strange doodles and marks or they display upside down or they display with letters flipped. After writing a simple application to display some of the characters, I finally realized that different bitmaps use different character orientations.

What are the rules or standards or expected representations for the bit data for bitmap fonts? Why do there seem to be several different text character orientations used with bitmap fonts?

Are these due to different target devices such as a Windows display driver or a Linux display driver versus a bare metal Arduino TFT LCD display driver?

What is the criteria used to determine a particular bitmap font representation as a series of unsigned char values? Are different types of raster devices such as a TFT LCD display and its controller have a different sequence of bits when drawing on the display surface by setting pixel colors?

What other possible bitmap font representations requiring a transformation which my version of the library currently doesn't offer, are there?

Is there some method other than the approach I'm using to determine what transformation is needed? I currently plug the bitmap font table into a test program and print out a set of characters to see how it looks and then fine tune the transformation by testing with the Arduino and the TFT LCD screen.

The KeDei TFT library came with an a bitmap font table that was defined as

The most common implementation of a sleep function in javascript is returning a Promise after setTimeout resolves:

I need to check if my Xamarin.Forms app has bluetooth permission and if not I would like to request it. I have been able to implement this as a Dependency service for Android but I do not know how to do it for iOS. I have seen some articles mentioning some differences between how this works on ios 13 vs earlier versions, but they have not been very clear.

I tried checking and testing on an iPhone 6s running ios 12.2 with this code:

This bot reads a text file to post a random response when the keyboard is entered. However, It's sending in all caps when the txt file is written in proper grammar.

Sorry if I'm completely ignorant. I'm in early stages of learning and this is kind of my building block. This code isnt mine but I'm modifying it for my use.