OS_GBPB works! Testing using CLibrary with 'sed'

by gerph 5 years ago

macOS ◆ xterm-256color ◆ fish 1088 views

The sed tool is a C program that reads from a file, transforms the output, and writes out to a file or to the screen. Therefore it uses the file I/O operations, and it does so through the known C library functions that operate properly with the RISC OS APIs.

The command here isn’t at all special - it just replaces an ‘e’ with a ‘y’ in the word ‘hello’, which was in a file. However, this is demonstrating that C programs are - in the most basic way - able to work with file I/O now.

This was the first test of the OS_GBPB outside of the test suite code.

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You can download this recording in asciicast v2 format, as a .cast file.

Download

Replay in terminal

You can replay the downloaded recording in your terminal using the asciinema play command:

asciinema play 261408.cast

If you don't have asciinema CLI installed then see installation instructions.

Use with stand-alone player on your website

Download asciinema player from the releases page (you only need .js and .css file), then use it like this:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="asciinema-player.css" />
</head>
<body>
  <div id="player"></div>
  <script src="asciinema-player.min.js"></script>
  <script>
    AsciinemaPlayer.create(
      '/assets/261408.cast',
      document.getElementById('player'),
      { cols: 101, rows: 48 }
    );
  </script>
</body>
</html>

See asciinema player quick-start guide for full usage instructions.

While this site doesn't provide GIF conversion at the moment, you can still do it yourself with the help of asciinema GIF generator utility - agg.

Once you have it installed, generate a GIF with the following command:

agg https://asciinema.org/a/261408 demo.gif

Or, if you already downloaded the recording file:

agg demo.cast demo.gif

Check agg --help for all available options. You can change font family and size, select color theme, adjust speed and more.

See agg manual for full usage instructions.