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[Bug]: cannot parse indented content #1388
Description
What happened?
zx fails with SyntaxError: Unexpected identifier 'assumes' when given the following markdown file: https://github.com/wighawag/template-ethereum-contracts/blob/593bb65e0c3ebffaff0d1c4b938c48003a5cdfdc/README.md?plain=1
How it should work?
it should parse it and execute what is in the code blocks
How to reproduce the bug?
create a file README.md with the content above
and execute
zx README.md
Version
8.8.5
What's OS kind?
Linux
What JS runtime is used?
Node.js
Runtime Version
24.11.1
Error stack / relevant log output
SyntaxError: Unexpected identifier 'assumes'Code of Conduct
- I agree to follow this project's Code of Conduct
Activity
[-][Bug]: cannot parse intended content[/-][+][Bug]: cannot parse indented content[/+]fix(md): require 4 spaces for indented code blocks
fix(md): require 4 spaces or tab for indented code blocks (resolves g…
Anjaliavv51 commentedon Oct 21, 2026
Hi @antongolub, I'd like to work on resolving this issue.
I looked into the root cause and saw that while #1419 successfully addressed indented code fences, this case still fails on indented list prose (e.g.,
This assumes...).Because
tabRe = /^( +|\t)/matches 2 or more spaces after an empty line, prose indented under a list item with 2 spaces is classified as raw JavaScript rather than Markdown prose (which should be commented out with//).Under CommonMark specifications (section 4.4), indented code blocks require 4 spaces or a tab, whereas 2-space indentation represents continuing list item content.
Would you prefer:
tabReto require 4 spaces or a tab (/^( {4,}|\t)/), aligning with CommonMark?If option 1 is acceptable, I can submit a clean PR with regression tests in
test/md.test.ts.fix: align indented code block threshold with CommonMark (google#1388)
fix(md): require 4 spaces or tab for indented code blocks (google#1388)