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enhance *src/keyreader.cpp* so it provides more value than xxd and od provides #2991

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krader1961 opened this issue May 2, 2016 · 5 comments
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krader1961 commented May 2, 2016

Is src/keyreader.cpp used by anyone? I'm working my way through making the fish C++ code follow a consistent style and noticed the aforementioned module. It's not documented and doesn't do anything you can't do using other tools like od and xxd.

For 2.3.1 release:

  • Documentation needs to match program output
  • Fix HTML display error
  • Update release notes
@krader1961 krader1961 self-assigned this May 2, 2016
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ridiculousfish commented May 2, 2016

make key_reader builds the tool key_reader. This is a little nicer than the alternatives (I use bash's read), but it's odd that it's part of fish. I have no objection to eliminating it.

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zanchey commented May 6, 2016

I use it sometimes; seems like a low-cost thing to keep, although perhaps adding it as a build target to the Travis CI builds would help make sure it doesn't bitrot.

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krader1961 commented May 6, 2016

I'm inclined to agree that we should keep it; especially since a couple of trivial enhancements I have in mind would make it much more useful than the alternatives and thus worth maintaining. Furthermore, I think we should rename it fish_key_reader and install it just like we do fish_indent. That would have the side-effect of causing Travis CI to build it.

The trivial enhancements include

  1. Adding inter-char timing data.

  2. Display control chars using their \cX equivalent as well as any backlash equivalent (e.g., \e for 0x1b) recognized by fish.

  3. Use a fixed width for the numeric fields so the information remains vertically aligned.

A straightforward, but non-trivial, enhancement is to recognize sequences that correspond to key names recognized by the bind command and display the key name.

@krader1961 krader1961 added this to the next-2.x milestone May 8, 2016
@krader1961 krader1961 changed the title should we kill *src/keyreader.cpp*? enhance *src/keyreader.cpp* so it provides more value than xxd and od provides May 8, 2016
krader1961 added a commit that referenced this issue Jun 20, 2016
The original `key_reader` program was useful but didn't do much that `xxd`
or `od -tx1z` didn't do. Furthermore, it wasn't built and installed by
default. This change adds features that make it superior to those programs
for decoding interactive key presses and makes it a first-class citizen
like the `fish_indent` program that is always available.

Fixes #2991
@floam floam modified the milestones: next-2.x, 2.3.1 Jul 3, 2016
@floam floam reopened this Jul 3, 2016
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floam commented Jul 3, 2016

The program output in the docs doesn't match the program output and the rendered HTML displays incorrectly.

@floam floam closed this as completed Jul 3, 2016
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floam commented Jul 3, 2016

I got new docs into 2.3.1.

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