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CCATP #783 — Bart Busschots on PBS 158B – jq More Advanced Queries

Two weeks ago, Bart Busschots and I recorded a Programming By Stealth episode covering more queries using the jq language on our JSON files. We spent so much time working through the challenges from the previous installment that we only made it halfway through his tutorial shownotes. So this week we’re back with the second half of that episode, Programming By Stealth 158B.

Before we got started learning, I alerted the audience to a significant enhancement to the material we create for this show.

I use a service called Auphonic to do a lot of things with the audio file when we’re done recording, including leveling the audio, adding metadata to it, converting it to an MP3, and FTPing it to the server for the listeners to download. Auphonic has recently added AI-generated transcripts which we’ve had for a while with Programming By Stealth.

The NosillaCast has chapter marks you can use to jump to content in the audio file, but Chit Chat Across the Pond has never had that. Auphonic now adds auto-generated chapters based on the content in the audio file. These chapter marks are in the transcript, which allows you to jump to the text of where we cover a specific topic.

Not only that, these auto-generated chapters are in the audio file so in your podcatcher you can now jump to different sections instead of having to scroll through to find something Bart explained.

The chapter marks are not perfect, and we have no intention of editing them, but it should give you an easier way to find what you want to re-listen to or re-read. While Bart has spectacular tutorial shownotes, the transcript gives you the full flavor of the conversation we have while Bart is teaching me.

Now back to this week’s show! In this week’s episode, Bart explains two powerful commands for searching JSON files with jq, the contains and inside functions. In this context, he goes through testing for containment with strings, arrays, and dictionaries, and he then tells us about default containment. Then he explains how the inside function does essentially the opposite of testing for containment. Finally, he shows us how to use regular expressions with the test function to get as granular as we like with our jq filters.

You can find Bart’s fabulous tutorial shownotes at pbs.bartificer.net.

mp3 download

Read an unedited, auto-generated transcript: CCATP_2023_12_30

Join our Slack at podfeet.com/slack and look for the #pbs channel, and check out our pbs-student GitHub Organization. It’s by invitation only but all you have to do is ask Allison!

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