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Fix smart punctuation inside grammar terminals #1869

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@ehuss ehuss commented Jun 22, 2025

Smart punctuation was converting ... to . This fixes it so that it will be escaped to avoid the conversion. This normally doesn't happen inside a backtick code block, but since we are using spans for terminals, pulldown-cmark is accidentally picking them up.

This also includes hyphen to handle en-dash and em-dash, though we don't have those.

Fixes #1867

Smart punctuation was converting `...` to `…`. This fixes it so that it
will be escaped to avoid the conversion. This normally doesn't happen
inside a backtick code block, but since we are using spans for
terminals, pulldown-cmark is accidentally picking them up.

This also includes hyphen to handle en-dash and em-dash, though we don't
have those.

Fixes rust-lang#1867
@rustbot rustbot added the S-waiting-on-review Status: The marked PR is awaiting review from a maintainer label Jun 22, 2025
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mdBook smart punctuation is harmful to inline code snippets
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