https://github.com/bobbicodes/wml

Process text files and CSVs with Clojure
https://github.com/bobbicodes/wml

Last synced: 3 months ago
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Process text files and CSVs with Clojure

• Host: GitHub
• URL: https://github.com/bobbicodes/wml
• Owner: bobbicodes
• License: epl-2.0
• Created: 2019-04-10T00:40:49.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2019-04-17T06:09:17.000Z (about 7 years ago)
• Last Synced: 2025-03-26T04:44:39.587Z (about 1 year ago)
• Language: HTML
• Homepage:
• Size: 656 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

Awesome Lists containing this project

README

          
# The prices are wrong!

  Oh no! A team of accountants at Walmart have discovered that customers are

  occasionally being charged too much or too little for various products.  They've

  written you an angry email about it, and now you're tasked with coming up with

  a data report about the situation.

  They've sent you a directory containing the receipts in which they suspect

  prices are wrong and a CSV file containing the product codes and the correct

  price each one should have.

  A receipt is just a plaintext file with rows formatted like:

  * A product name

  * A product code

  * A price

  * A random flag character (this exists for no other reason than to confuse you)

  There's also a store number listed up top.

  Sometimes, items might be voided.  This means that the previous line is null and

  void, and the customer didn't pay for it, so it won't reflect in the total.  Your

  program should ignore these voided products.

## So, about that report...

  Anyway, the angry accountants would like your program to output a

  CSV which tallies losses or gains from all stores, listed individually:

  | store | plusminus |

  |-------|-----------|

  |     1 |   -123.40 |

  |     3 |   +200.10 |

  That way, they can track down the people responsible!

  In addition, your CSV should be sorted by the plusminus column from low to

  high.  The accountants care more about the business losing money, I guess! 

  The accountants might email you again with more stuff, so it'd be smart for your

  program to take a parameter, say, `directory`, and output the CSV file?  Then you

  can run it again and again when they give you more receipts to analyze!  I don't

  know, you're the expert.