Skip to content

md037.md

Latest commit

 

History

History
37 lines (27 loc) · 1.13 KB

md037.md

File metadata and controls

37 lines (27 loc) · 1.13 KB

MD037 - Spaces inside emphasis markers

Tags: whitespace, emphasis

Aliases: no-space-in-emphasis

Fixable: Yes

This rule is triggered when emphasis markers (asterisks and underscores) are used, but they have spaces between the markers and the text:

Here is some * emphasis * and **bold**.
Here is some _ emphasis _ and __bold__.

To fix this, remove the spaces:

Here is some *emphasis* and **bold**.
Here is some _emphasis_ and __bold__.

Rationale: Emphasis is meant to be used inline, and spaces within the markers make it less visually distinct. Per the CommonMark specification, emphasis markers with spaces inside are not considered emphasis:

A * character can open emphasis iff (if and only if) it is part of a left- flanking delimiter run. A * character can close emphasis iff it is part of a right-flanking delimiter run.

A delimiter run is a sequence of one or more delimiter characters. A left-flanking delimiter run is a delimiter run that is:

  1. not followed by Unicode whitespace, and