PrismJS / PrismJS/prism

highlighting is incorrect for bash script mixing in python code using the `<< EOF` syntax

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language-definitions
Dominant language
JavaScript
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Information

  • Language: [Git Bash, Python]
  • Plugins: ['none']

Description
This piece of bash script will not highlight correctly when mixing in python code using the << EOF syntax

The code being highlighted incorrectly.
cat > hello.py << EOF
print("hello world")
EOF

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the provided Bash heredoc snippet on Prism's test page and compare the Bash and Python highlighting. Start by examining how Prism handles the mixed-language example, then verify that the shown script highlights correctly without regressing the surrounding Bash or Python code.

Written by the indexing model from the issue text.

Assessment

Tech stack
bash, javascript, python
Domain
devtools
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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