demonstrate newline-handling nit

Gist 60785

This example demonstrates a minimal Ruby script that temporarily redirects standard output to capture a string, then restores it and prints the captured content. It shows how to intercept output using `StringIO` and the global `$stdout` variable. The code assigns `$stdout` to a new `StringIO` object, prints "Hello, World!" into it, then restores the original standard output and outputs the captured string via `new_stdout.string`. The visible rendering is plain text output, with no external data source or graphical library involved.

55% match

Gist 182074

This example visualizes a short Apache configuration snippet from a gist, showing how a developer integrates Phusion Passenger with Ruby version management. The code demonstrates the use of `LoadModule` and `PassengerRuby` directives to switch between system Ruby and RVM-managed Ruby 1.8.6, with the data source being the gist’s raw text file. The visualization likely uses a text-based rendering approach, such as a syntax-highlighted code block, rather than a charting library, since the content is purely textual. No graphical libraries like `d3` or Three.js are employed; instead, the focus is on presenting the configuration lines as-is.

52% match

Gist 23733

This example visualizes the distinction between local variables, instance variables, and block scoping in Ruby through a sequence of short code snippets. It shows how assignment semantics affect values across method calls and blocks, culminating in a Numeric class monkey-patch. The visualization likely renders each snippet as annotated code blocks with output values, using a custom layout or a library like D3.js to arrange the snippets and highlight variable bindings. The data originates from the gist’s source code, presented without external datasets, focusing on the logic of variable scope rather than numerical or spatial data.

52% match

Simple Rack app as a Ruby file instead of config.ru.

This example shows a minimal Ruby web application built directly inside a single Ruby file, bypassing the conventional `config.ru` setup. It defines a `Hello` class with a `call` method that returns a static HTTP response—a status code of `'200'`, a `'Content-type'` header of `'text/html'`, and a simple HTML heading. The code uses the `rack` library’s `Rack::Handler::WEBrick.run` to launch the server, with the app logic exposed through the Rack interface. It also demonstrates how to start the server via the command line and test it with a GET request.

AAndrelton

Gist 182105

This example demonstrates how to configure the Passenger Apache module for a Ruby on Rails application, specifically showing the distinction between default and RVM-managed Ruby environments. The visualization presents the two configuration approaches side by side, highlighting the commented-out default passenger settings versus the active RVM-based paths. The code uses Apache’s `LoadModule` directive and `PassengerRoot`/`PassengerRuby` configuration directives from the passenger gem, sourced from DylanFM’s gist. The rendering approach is textual, displaying the raw configuration file content without any graphical libraries or data visualization APIs.

Stack level too deep

This visualization shows a terminal session where a Ruby on Rails test suite fails with a "stack level too deep" SystemStackError, rendering the command output as a plain-text log. The example captures the raw terminal text from a `rake spec:models --trace` run, displaying the rspec test failures and the backtrace pointing to the mongomapper `keys.rb` library. The code uses the standard Ruby runtime and rspec-core, with the output presented literally as the session’s text, reflecting the error’s recursive nature through repeated stack overflow messages. The data source is the command’s stderr and stdout, shown without additional styling or abstraction.

CCaged

Gist 44be7198b7913c5e683122ab224baa9e

This example demonstrates a shell-based spinner that provides visual feedback during a long-running command-line task. Instead of a graphical chart, it renders a rotating line animation directly in the terminal by updating a single carriage-returned character (`\r`) on the standard error stream. The script iterates through the characters of the string `/|-\` using a modulo index, printing one frame per line of piped input. It relies on standard shell constructs like `printf`, a `while` loop with `read`, and an environment variable for state, with no external JavaScript libraries or data sources involved. The spinner stops and clears the line after the input stream ends.

HHerst

Gist 55439

This example visualizes the classic “99 Bottles of Beer” song through a Ruby script that prints each verse in descending order. The code uses a `Fiber` to generate each line of the verse on demand, demonstrating a lazy evaluation pattern within a `downto` loop. The data source is the literal song lyrics, hardcoded as string interpolation, with the `Fiber` API controlling the flow of text output. No external visualization libraries are used; instead, the rendering is purely text-based, showing how algorithmic iteration and coroutines can produce sequential narrative content.