Letter | A simplistic , integer-only programming language | Compiler library
kandi X-RAY | Letter Summary
kandi X-RAY | Letter Summary
Letter is a simple LISP-like programming language that supports functions, dynamic scope, and local variables. There are no types; Letter only has integers. There are two directories correspoding to 2 implementations of Letter. The C++ directory has an LLVM IR-generating JIT execution environment. The Haskell directory has an interpreter and REPL.
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QUESTION
I would like to extract the definitions from the book The Navajo Language: A Grammar and Colloquial Dictionary by Young and Morgan. They look like this (very blurry):
I tried running it through the Google Cloud Vision API, and got decent results, but it doesn't know what to do with these "special" letters with accent marks on them, or the curls and lines on/through them. And because of the blurryness (there are no alternative sources of the PDF), it gets a lot of them wrong. So I'm thinking of doing it from scratch in Tesseract. Note the term is bold and the definition is not bold.
How can I use Node.js and Tesseract to get basically an array of JSON objects sort of like this:
...ANSWER
Answered 2021-Jun-15 at 20:17Tesseract takes a lang variable that you can expand to include different languages if they're installed. I've used the UB Mannheim (https://github.com/UB-Mannheim/tesseract/wiki) installation which includes a ton of languages supported.
To get better and more accurate results, the best thing to do is to process the image before handing it to Tesseract. Set a white/black threshold so that you have black text on white background with no shading. I'm not sure how to do this in Node, but I've done it with Python's OpenCV library.
If that font doesn't get you decent results with the out of the box, then you'll want to train your own, yes. This blog post walks through the process in great detail: https://towardsdatascience.com/simple-ocr-with-tesseract-a4341e4564b6. It revolves around using the jTessBoxEditor to hand-label the objects detected in the images you're using.
Edit: In brief, the process to train your own:
- Install jTessBoxEditor (https://sourceforge.net/projects/vietocr/files/jTessBoxEditor/). Requires Java Runtime installed as well.
- Collect your training images. They want to be .tiffs. I found I got fairly accurate results with not a whole lot of images that had a good sample of all the characters I wanted to detect. Maybe 30/40 images. It's tedious, so you don't want to do TOO many, but need enough in order to get a good sampling.
- Use jTessBoxEditor to merge all the images into a single .tiff
- Create a training label file (.box)j. This is done with Tesseract itself.
tesseract your_language.font.exp0.tif your_language.font.exp0 makebox - Now you can open the box file in jTessBoxEditor and you'll see how/where it detected the characters. Bounding boxes and what character it saw. The tedious part: Hand fix all the bounding boxes and characters to accurately represent what is in the images. Not joking, it's tedious. Slap some tv episodes up and just churn through it.
- Train the tesseract model itself
- save a file:
font_propertieswho's content isfont 0 0 0 0 0 - run the following commands:
tesseract num.font.exp0.tif font_name.font.exp0 nobatch box.train
unicharset_extractor font_name.font.exp0.box
shapeclustering -F font_properties -U unicharset -O font_name.unicharset font_name.font.exp0.tr
mftraining -F font_properties -U unicharset -O font_name.unicharset font_name.font.exp0.tr
cntraining font_name.font.exp0.tr
You should, in there close to the end see some output that looks like this:
Master shape_table:Number of shapes = 10 max unichars = 1 number with multiple unichars = 0
That number of shapes should roughly be the number of characters present in all the image files you've provided.
If it went well, you should have 4 files created: inttemp normproto pffmtable shapetable. Rename them all with the prefix of your_language from before. So e.g. your_language.inttemp etc.
Then run:
combine_tessdata your_language
The file: your_language.traineddata is the model. Copy that into your Tesseract's data folder. On Windows, it'll be like: C:\Program Files x86\tesseract\4.0\tessdata and on Linux it's probably something like /usr/shared/tesseract/4.0/tessdata.
Then when you run Tesseract, you'll pass the lang=your_language. I found best results when I still passed an existing language as well, so like for my stuff it was still English I was grabbing, just funny fonts. So I still wanted the English as well, so I'd pass: lang=your_language+eng.
QUESTION
So I was wondering if there is a way to make a batch file read a separate text document and convert specific lines of code into a variable with the same value given, as from the document. So make the batch script read the text document, and use the information in there to create it's own variable. eg.
TEXT.txt:
...ANSWER
Answered 2021-Jun-15 at 18:59To get the content as shown in your example TEXT.txt, you could just use a For /F loop and use the = character as the delimiters:
QUESTION
First time actually using anything to do with swing - sorry for the poor code and crude visuals!
Using swing for a massively over-complicated password checker school project, and when I came to loading in a JMenuBar, it doesn't render properly the first time. Once I run through one of the options first, it reloads correctly, but the first time it comes out like this:
First render attempt
But after I run one of the methods, either by clicking one of the buttons that I added to check if it was just the JFrame that was broken or using one of the broken menu options, it reloads correctly, but has a little grey bar above where the JMenuBar actually renders: Post-method render
The code for the visuals is as follows:
...ANSWER
Answered 2021-Jun-15 at 18:29You should separate creating your menu from your content. Please review the following example. I decoupled your menu, component, and event logic into meaningful phases.
QUESTION
I’d be grateful for suggestions as to how to remap letters in strings in a map-specified way.
Suppose, for instance, I want to change all As to Bs, all Bs to Ds, and all Ds to Fs. If I do it like this, it doesn’t do what I want since it applies the transformations successively:
...ANSWER
Answered 2021-Jun-15 at 18:21We could use chartr in base R
QUESTION
Say I have a list of every single letter in the alphabet
...ANSWER
Answered 2021-Jun-15 at 18:04An option with tidyverse
- Get the objects in a named
list(dplyr::lst) - Convert the named list to a tibble -
enframe unnestthelistcolumn- Extract the substring from the 'name', convert it to upper case
- Do a join (
right_join) with the 'chars' converted to atibble arrangethe rows after replacing the NA with 'Unique'pullthe column as avector
QUESTION
I would like to iterate over each character in a Unicode string and I'm doing so as such:
...ANSWER
Answered 2021-Jun-15 at 17:11You could use the split() command in Python to break up your sting into a list. You can then iterate over the elements inside the list. You could do this al follows:
QUESTION
I am trying to figure out is there any way to send failed records in Dead Letter topic in Spring Boot Kafka in Batch mode. I don't want to make the records being sent in duplicate as it's consuming in batch and few are already processed. I saw this link ofspring-kafka consumer batch error handling with spring boot version 2.3.7
I thought about a use case to stop container and start again without using DLT but again the issue of duplication will come in Batch mode.
@Garry Russel can you please provide a small code for batch error handling.
...ANSWER
Answered 2021-Jun-15 at 17:34The RetryingBatchErrorHandler was added in spring-kafka version 2.5 (which comes with Boot 2.3).
The listener must throw an exception to indicate which record in the batch failed (either the complete record, or the index in the list).
Offsets for the records before the failed one are committed and the failed record can be retried and/or sent to the dead letter topic.
See https://docs.spring.io/spring-kafka/docs/current/reference/html/#recovering-batch-eh
There is a small example there.
The RetryingBatchErrorHandler was added in 2.3.7, but it sends the entire batch to the dead letter topic, which is typically not what you want (hence we added the RetryingBatchErrorHandler).
QUESTION
I wrote a discord bot. "o" is first letter of play. "atla" is skip. When I wrote -o MUSIC_NAME, music is adding queue and starting to play. And when I write again, just adding queue. Everything is okay still here. When I wrote -atla. It's also working perfectly. But when I allow to changing auto music itself, it's changing music automatically. But problem is here. The end of the last music not working else if (list.length === 0) block in endHandler function. How can I fix that? Thanks for your attention.
...ANSWER
Answered 2021-Jun-15 at 15:41I'm not familiar with Discord bots but I don't think your endHandler will ever run the else if part the way it is because your code is always creating a new dispatcher when it plays the next song, but never sets up a finish handler for it.
QUESTION
The below code is a method for my constructor for the class Word which is part of a word-search app I am building.
...ANSWER
Answered 2021-Jun-15 at 15:12What is happening in your code:
You have an object coord. You are pushing its reference to the array, in each iteration. All your array elements point to coord. You are changing the properties of the object coord again in turn changing your array elements.
QUESTION
Python issues: I need some help to figure it out why this code is printing 3 lines with a blank line between them. I want it to print every contact of a .txt starting with a specific letter. For example, if Z is = A, it will print:
Ariana
SSN:132664979
+1356974664
Abigail
SSN: 2658978133
+5765613197
..And so on with all contacts starting with "A". I don't know how to delete those blank spaces between each line with information.I want the code to print something like this:
Ariana
SSN:132664979
+1356974664
Abigail
SSN: 2658978133
+5765613197
...so on
I'd like to clarify that the .txt doesn't have any blank space between the data. So it is something the code is doing.
...ANSWER
Answered 2021-Jun-15 at 13:50print(archive[i].strip())
print(archive[i+1].strip())
print(archive[i+2].strip())
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