OS_GBPB works! Testing using CLibrary with 'sed'

by gerph 5 years ago

macOS ◆ xterm-256color ◆ fish 1071 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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asciinema play 261408.cast

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<!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(
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      document.getElementById('player'),
      { cols: 101, rows: 48 }
    );
  </script>
</body>
</html>

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

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

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agg demo.cast demo.gif

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See agg manual for full usage instructions.