Some json makes the coloration seems to be stuck in an infinite loop

[hoverwars]

Description

I'm developping an AI chat that can generate code. I use your package to colorate the code. Sometimes, the coloration seems to be stuck in an infinite loop, making my application freeze. What I know:

• This is precisely your package, because removing the coloration step works
• This is somehow related to the format of the json. I don't know what AI prompt will cause the coloration step to be stuck, but when I have found a prompt making it be stuck, the generated json will always cause this problem, even if the generation is slighty different each time
• I never experienced an error with another language

Expected Behaviour

The generation working, even for incomplete code blocks

Actual Behaviour

The coloration seems to be stuck in an infinite loop.

Affected Version

2.3.0

Steps to Reproduce

• Build the pipeline

  _pipeline ??= new MarkdownPipelineBuilder()
  .UseAdvancedExtensions()
  .UseColorCode()
  .Build();

• Generate the result Markdig.Markdown.ToHtml(response, _pipeline)
• -> The pipeline never ends

Examples

Here are some examples that cause the program to be stuck. Note that the not closing tag "```json" is on purpose, because the problem occurs during the AI answer, so the generation cannot end.

```json
{
    "NomDuSnippet": {
        "prefix": "monSnippet",
        "body": [
            "Nom : ${1:MonNom}",
            "Date : ${2:LaDate}",
            "Description : ${3:MaDescription

Another one (doesn't stuck but take ~1 second to colorate):

```json
{
  "My JSON Template": {
    "prefix": "mytemplate",
    "body": [
      "{",
      "  \"username\": \"${1:default

I have these that might help you. Crash

```json
[
    {
        "NOM DU CANDIDAT": "GROUPE BIDULE",
        "DESCRIPTION": "Vérification des systemes de

Don't crash

```json
[
    {
        "NOM DU CANDIDAT": "GROUPE BIDULE",
        "DESCRIPTION": "Vérification

Don't crash

```json
[
    {
        "NOM DU CANDIDAT": "GROUPE BIDULE",
        "DESCRIPTION": "Vérification des systemes de"

In my opinion, it might be related to the usage of spaces in a non-closing double quote Let me know if you need more informations

Checklist

• [x] I have read the contributing guidelines
• [x] I have verified this does not duplicate an existing issue

[hoverwars]

EDIT: It occured on a mermaid block too

[wbaldoumas]

@hoverwars thanks for reporting this issue!

Could you share a minimal reproduction project (either a public github repo or a zip upload of the code here)? I'll take a look when I have time.

[wbaldoumas]

@hoverwars I found https://github.com/CommunityToolkit/ColorCode-Universal/issues/36 which appears to basically be the same issue that you reported here. The root cause exists over in that library, which this extension uses as a dependency.

Please report your issue there to add some urgency. It also looks like some workarounds were posted which may be helpful for you. Closing this issue out, as there isn't anything to address in this package.

[hoverwars]

Thank you for your help. I'm sorry, I didn't take the time this week to create the repository you asked. Have a good day !

[wbaldoumas]

Thank you for your help. I'm sorry, I didn't take the time this week to create the repository you asked. Have a good day !

Not a problem! I was able to use some of the examples you provided to build a small repro app to test locally. That let me drill down to observe ColorCode-Universal as being the root cause and then I found that related issue.

If you find any other issues with this library, feel free to open another issue and I'll be happy to help!