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This rule is triggered on any lines that end with unexpected whitespace. To fix this, remove the trailing space from the end of the line.
Note: Trailing space is allowed in indented and fenced code blocks because some languages require it.
The br_spaces parameter allows an exception to this rule for a specific number
of trailing spaces, typically used to insert an explicit line break. The default
value allows 2 spaces to indicate a hard break (<br> element).
Note: You must set br_spaces to a value >= 2 for this parameter to take
effect. Setting br_spaces to 1 behaves the same as 0, disallowing any trailing
spaces.
By default, this rule will not trigger when the allowed number of spaces is
used, even when it doesn't create a hard break (for example, at the end of a
paragraph). To report such instances as well, set the strict parameter to
true.
Text text text
text[2 spaces]
Using spaces to indent blank lines inside a list item is usually not necessary,
but some parsers require it. Set the list_item_empty_lines parameter to true
to allow this (even when strict is true):
- list item text
[2 spaces]
list item text
Rationale: Except when being used to create a line break, trailing whitespace has no purpose and does not affect the rendering of content.