Replace all usage example

[himanshigaba22]

Description

Added a usage example for the replace_all function in the utilities category.
The example demonstrates replacing all occurrences of "foo" with "bar" in a sentence across C++, C#, and Python.

Type of change

• Documentation (update or new)

How Has This Been Tested?

The example output was verified manually to ensure all occurrences of the target substring are correctly replaced.

Testing Checklist

• Code follows usage example guidelines
• Output is correct and clear
• Screenshot added

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[ralphweng-autograb]

Peer Review

I've reviewed the replace_all usage example. The example is simple and demonstrates the function clearly — replacing all occurrences of "foo" with "bar" is easy to understand.

However, there are several issues to address:

Issues

Usage Example Files

1. C++ uses using namespace std;. This is not needed and not standard for SplashKit examples. SplashKit's string type is available through #include "splashkit.h" — remove using namespace std;.

2. Top-level C# uses OOP-style calls. The top-level C# file should use using static SplashKitSDK.SplashKit; and call functions directly (e.g., ReplaceAll(...), WriteLine(...)) instead of SplashKit.ReplaceAll(...). The current code is nearly identical to the OOP version.

3. OOP C# missing namespace. The OOP C# file should wrap the class in a namespace: namespace ReplaceAllExample { ... }.

4. Missing newline at end of files. All code files are missing a trailing newline.

usage-example-references.json Issues

5. The replace_all reference entry lists "print" as the only function. This should list the actual SplashKit functions used: replace_all, write_line.

6. Unrelated entries added. This PR adds cross-reference entries for saturation_of, rectangle_around, bitmap_center, draw_circle, get_font_style, and close_window — none of which are related to the replace_all example. These should be submitted in their own PRs or with the corresponding usage example PRs. Please remove them from this PR to keep it focused.

guides-groups.json Changes

7. Unrelated change to guides-groups.json. This PR capitalises "camera" → "Camera" and "graphics" → "Graphics" in the guides groups config and reorders entries. This is unrelated to the replace_all example and could break guide generation. Please revert this change.

Checks

• All required files are present.
  • Example Title (.txt)
  • C++ code (SplashKit)
  • C# code (top-level statements)
  • C# code (Object-Oriented Programming)
  • Python code
  • Output screenshot (.png)

Code Tests done

• C++ SplashKit code ran correctly.
• C# top level code ran correctly.
• C# OOP code ran correctly.
• Python code ran correctly.

Note: I was unable to compile and run the code locally. Please verify all 4 variants run correctly and produce the expected output.

[ralphweng2023]

Left some inline comments on the specific files — see above.

[ralphweng2023]

You don't need using namespace std; here — SplashKit handles string through #include "splashkit.h". Just remove this line.

[ralphweng2023]

For top-level C#, use using static SplashKitSDK.SplashKit; so you can call functions directly like ReplaceAll(...) and WriteLine(...) without the SplashKit. prefix. Right now this reads the same as the OOP version.

[ralphweng2023]

Wrap this in a namespace per convention, e.g.:

namespace ReplaceAllExample
{
    public class Program
    {
        ...
    }
}

[ralphweng2023]

This capitalisation change (camera → Camera, graphics → Graphics) looks unrelated to the replace_all example. Could potentially break guide generation — best to revert this file and submit separately if needed.

[ralphweng2023]

This saturation_of entry isn't related to the replace_all example — should go in the PR that adds the saturation_of usage example instead. Same goes for the rectangle_around, bitmap_center, draw_circle, get_font_style, and close_window entries below. Keep this PR focused on just replace_all.

[ralphweng2023]

The functions list here just has "print" — should be "replace_all" and "write_line" (the actual SplashKit functions used in the example).