exercism / cobol

Exercism exercises in COBOL.

Exercism COBOL Track

Exercism exercises in COBOL.

Testing

To test the exercises, run ./bin/test. This command will iterate over all exercises and check to see if their exemplar/example implementation passes all the tests.

Track linting

configlet is an Exercism-wide tool for working with tracks. You can download it by running:

$ ./bin/fetch-configlet

Run its lint command to verify if all exercises have all the necessary files and if config files are correct:

$ ./bin/configlet lint

The lint command is under development.
Please re-run this command regularly to see if your track passes the latest linting rules.

Basic linting finished successfully:
- config.json exists and is valid JSON
- config.json has these valid fields:
    language, slug, active, blurb, version, status, online_editor, key_features, tags
- Every concept has the required .md files
- Every concept has a valid links.json file
- Every concept has a valid .meta/config.json file
- Every concept exercise has the required .md files
- Every concept exercise has a valid .meta/config.json file
- Every practice exercise has the required .md files
- Every practice exercise has a valid .meta/config.json file
- Required track docs are present
- Required shared exercise docs are present

cobol's Issues

Syntax highlighting: Operators

@joshgoebel I can't find a way to make operators work and I can't find any documentation on regex.either( )
But I did fix the keyword pattern, so that's working now.

Originally posted by @KTSnowy in #1 (comment)

---

Maybe show me the last thing you tried? It's not documented, but look in the regex.js source and it should be easy to see - it just takes an arrray of strings or regex - or you can manually write the regex out - it's just nicer to use the helper.

Launch tracking

This issue helps keep track of the tasks you're working on towards launching this track.

The next steps are:

• Join our community
• Select programming language variant (if applicable)
• Select testing framework
• Add the first exercise
• Add initial exercises
• Setup Continuous Integration
• Prepare for launch
• Find Maintainers
• Launch!
• Implement tooling
• Prepare for open source contributions from strangers

Once you've finished a task, you can check them in this list.

Questions

Please ask if you have any questions or if anything is confusing!

Bob exercise start point lacks a Procedural Division

Just wondering if this is intentional or not :)

Syntax highlighting in editor

Hi,
When I look at my submitted exercise the syntax highlighting looks good.
However, when I open the editor it is not working.

Each exercise needs "practices"

Each exercise need to practice some technique. However, the names we might choose don't turn up in other languages, e.g. "88-levels". We need to identify our techniques and then find some way of getting them past the linter.

🤖 Sync error for commit ee499b

We hit an error trying to sync the latest commit (ee499b0) to the website.

The error was:

MySQL client is not connected

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/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:131:in `block (4 levels) in dispatch'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:257:in `stats'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:126:in `block (3 levels) in dispatch'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/job_logger.rb:13:in `call'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:125:in `block (2 levels) in dispatch'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/job_retry.rb:81:in `global'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:124:in `block in dispatch'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/job_logger.rb:39:in `prepare'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:123:in `dispatch'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:162:in `process'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:78:in `process_one'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/processor.rb:68:in `run'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/util.rb:56:in `watchdog'
/opt/exercism/website/vendor/bundle/ruby/3.1.0/gems/sidekiq-6.4.1/lib/sidekiq/util.rb:65:in `block in safe_thread'

Please tag @exercism/maintainers-admin if you require more information.

Exercises List

• accumulate (deprecated)
• acronym
• affine-cipher
• all-your-base
• allergies
• alphametics
• anagram
• armstrong-numbers
• atbash-cipher
• bank-account
• beer-song
• binary (deprecated)
• binary-search
• binary-search-tree
• bob
• book-store
• bowling
• change
• circular-buffer
• clock
• collatz-conjecture
• complex-numbers
• connect
• counter (deprecated)
• crypto-square
• custom-set
• darts
• diamond
• difference-of-squares
• diffie-hellman
• dnd-character
• dominoes
• dot-dsl
• error-handling
• etl
• flatten-array
• food-chain
• forth
• gigasecond
• go-counting
• grade-school
• grains
• grep
• hamming
• hangman
• hello-world
• hexadecimal (deprecated)
• high-scores
• house
• isbn-verifier
• isogram
• killer-sudoku-helper
• kindergarten-garden
• knapsack
• largest-series-product
• leap
• ledger
• lens-person
• linked-list
• list-ops
• luhn
• markdown
• matching-brackets
• matrix
• meetup
• micro-blog
• minesweeper
• nth-prime
• nucleotide-codons (deprecated)
• nucleotide-count
• ocr-numbers
• octal (deprecated)
• paasio
• palindrome-products
• pangram
• parallel-letter-frequency
• pascals-triangle
• perfect-numbers
• phone-number
• pig-latin
• point-mutations (deprecated)
• poker
• pov
• prime-factors
• protein-translation
• proverb
• pythagorean-triplet
• queen-attack @axtens
• rail-fence-cipher
• raindrops
• rational-numbers
• react
• rectangles
• resistor-color
• resistor-color-duo
• resistor-color-trio
• rest-api
• reverse-string
• rna-transcription
• robot-name
• robot-simulator
• roman-numerals
• rotational-cipher
• run-length-encoding
• saddle-points
• satellite
• say
• scale-generator
• scrabble-score @axtens
• secret-handshake
• series
• sgf-parsing
• sieve
• simple-cipher
• simple-linked-list
• space-age
• spiral-matrix
• square-root
• state-of-tic-tac-toe
• strain
• sublist
• sum-of-multiples
• tournament
• transpose
• tree-building
• triangle
• trinary (deprecated)
• twelve-days
• two-bucket
• two-fer
• variable-length-quantity
• word-count
• word-search
• wordy
• yacht
• zebra-puzzle
• zipper

Raindrops exercise fails with "curl: command not found" on the Exercism Editor

Students are able to compile code that is longer than 80 columns with fixed-form

I thought that gnuCOBOL's default option maintained the fixed-form column length limit.

Submitting some exercises results in Success no matter the code

I tried the Hello World and Collatz Conjecture exercises.
And both gives me succesful runs, without making the code that is needed for the tests to pass.
I then tried the Yacht exercise, and found that it works correctly.

So something is wrong in the setup of some of the exercises.

Armstrong numbers exercise has wrong instructions

Instructions of "RNA Transcription" are displayed instead of "Armstrong numbers".

Can't get tests passewd - need help

Can't figure out what I'm doing wrong. My code attached for Yacht execise.
yacht code.txt

Scripts are not executable when using `exercism download`

Hi,
I was checking out the cobol track as a user and found the following problem on a Mac:

> exercism download --exercise=reverse-string --track=cobol
> cd ~/Exercism/cobol/reverse-string
> ./test.sh 
zsh: permission denied: ./test.sh

In this git repo the scrips have execute flags, but when using exercism download the scripts are not executable.
Has someone experience with scripts from other tracks? Do we need to declare them somewhere as executables?

Hamming Distance exercise files not updating on the website

Armstrong Numbers: Negative tests seem to be missing

These comments seem to be incorrect (in all the exercise files)

cobol/exercises/practice/leap/bin/fetch-cobolcheck.ps1

Lines 1 to 4 in b3b7d5d

	# This file is a copy of the
	# https://github.com/exercism/configlet/blob/main/scripts/fetch-configlet.ps1 file.
	# Please submit bugfixes/improvements to the above file to ensure that all tracks
	# benefit from the changes.

Building a training set of tags for cobol

Hello lovely maintainers 👋

We've recently added "tags" to student's solutions. These express the constructs, paradigms and techniques that a solution uses. We are going to be using these tags for lots of things including filtering, pointing a student to alternative approaches, and much more.

In order to do this, we've built out a full AST-based tagger in C#, which has allowed us to do things like detect recursion or bit shifting. We've set things up so other tracks can do the same for their languages, but its a lot of work, and we've determined that actually it may be unnecessary. Instead we think that we can use machine learning to achieve tagging with good enough results. We've fine-tuned a model that can determine the correct tags for C# from the examples with a high success rate. It's also doing reasonably well in an untrained state for other languages. We think that with only a few examples per language, we can potentially get some quite good results, and that we can then refine things further as we go.

I released a new video on the Insiders page that talks through this in more detail.

We're going to be adding a fully-fledged UI in the coming weeks that allow maintainers and mentors to tag solutions and create training sets for the neural networks, but to start with, we're hoping you would be willing to manually tag 20 solutions for this track. In this post we'll add 20 comments, each with a student's solution, and the tags our model has generated. Your mission (should you choose to accept it) is to edit the tags on each issue, removing any incorrect ones, and add any that are missing. In order to build one model that performs well across languages, it's best if you stick as closely as possible to the C# tags as you can. Those are listed here. If you want to add extra tags, that's totally fine, but please don't arbitrarily reword existing tags, even if you don't like what Erik's chosen, as it'll just make it less likely that your language gets the correct tags assigned by the neural network.

---

To summarise - there are two paths forward for this issue:

1. You're up for helping: Add a comment saying you're up for helping. Update the tags some time in the next few days. Add a comment when you're done. We'll then add them to our training set and move forward.
2. You not up for helping: No problem! Just please add a comment letting us know :)

If you tell us you're not able/wanting to help or there's no comment added, we'll automatically crowd-source this in a week or so.

Finally, if you have questions or want to discuss things, it would be best done on the forum, so the knowledge can be shared across all maintainers in all tracks.

Thanks for your help! 💙

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Note: Meta discussion on the forum