Microsoft/monaco-editor

[Bug] Incorrect Raw String Literals formatting

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#5,085 opened on Nov 5, 2025

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Description

Reproducible in vscode.dev or in VS Code Desktop?

  • Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

Monaco Editor Playground Link

This issue is for C#

Raw String Literals do not work on the playground, but Verbatim String Literals do. They should have a similar behavior.

Monaco Editor Playground Code

Console.WriteLine("""
    Prime Numbers :
    sxsxcs
    xsxs 
""");

Reproduction Steps

Actual (Problematic) Behavior

No response

Expected Behavior

No response

Additional Context

No response

Contributor guide

Research direction
Find the C# language grammar or tokenizer in the monaco editor codebase (likely in src/basic languages/csharp) and modify the handling of raw string literals to match verbatim string literals in formatting.
Tech stack
javascripttypescriptcsharp
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
GitJavaScriptTypeScriptC#
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70