Coding Challenge #45 - yq

This challenge is to build your own version of yq

The tool?yq?is a lightweight and flexible command-line YAML processor. It’s useful for processing YAML allowing us to quickly and effectively filter out the bits we want.

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The Challenge - Building Your Own yq

The command line tool?yq?is like?jq?for YAML data - you can use it to and filter and transform YAML data, much like you would JSON dats with?jq. By the way, a past?Coding Challenge?was to?build your own jq if you fancy giving that a go.

Step Zero

Like?yq?itself we’re zero-indexed! In this step you’re going to set your environment up ready to begin developing our?yq?clone:?ccyq.

You can download some test YAML from my dropbox here.

Step 1

In this step your goal is to open the yaml file, read it and print it. You could parse it at this point or just read it and print it line by line.

The outcome should look something like this:

% ccyq quotes.yaml 
quotes:
  - id: 1
    quote: It is bad for a young man to sin; but it is worse for an old man to sin.
    author: Abu Bakr (R.A)
<snip>
  - id: 5
    quote: >-
      These Capitalists Generally Act Harmoniously And In Concert, To Fleece The People.
    author: Abraham Lincoln
        

N.B. I’ve trimmed the output to just show the first and last quote.

Continued...

You can find Step 2 and beyond on the Coding Challenges website as build your own yq.

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