This illustrates a bug in some Markdown viewers. Affected viewers include:
- Typedown (Windows)
- Simple Markdown (Android)
Viewers that handle this correctly include:
- Visual Studio Code (Windows and Linux)
- Okular (Windows)
- Markdown View (Windows)
- GitHub web interface
- Stack Overflow web interface
The following consists of 30 lines
of text with no trailing spaces.
When rendered, the entire block
should be filled and rendered as
a single paragraph, so the first
line should start with "one one two
one two three". In addition, this
paragraph is formatted with fmt -40.
Some Markdown viewers incorrectly pass
the line breaks through to the output.
one one two one two three one two three four one two three four five one two three four five six one two three four five six seven one two three four five six seven eight one two three four five six seven eight nine one two three four five six seven eight nine ten one two three four five six seven eight nine ten eleven one two three four five six seven eight nine ten eleven twelve one two three four five six seven eight nine ten eleven twelve thirteen one two three four five six seven eight nine ten eleven twelve thirteen fourteen one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty
The following is the same, but with two trailing spaces on each line. The trailing spaces should create a line break in the output. Most or all Markdown viewers handle this correctly.
one
one two
one two three
one two three four
one two three four five
one two three four five six
one two three four five six seven
one two three four five six seven eight
one two three four five six seven eight nine
one two three four five six seven eight nine ten
one two three four five six seven eight nine ten eleven
one two three four five six seven eight nine ten eleven twelve
one two three four five six seven eight nine ten eleven twelve thirteen
one two three four five six seven eight nine ten eleven twelve thirteen fourteen
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine
one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty
The following is the same rendered as an unordered list, without the trailing spaces. Most or all Markdown viewers handle this correctly.
- one
- one two
- one two three
- one two three four
- one two three four five
- one two three four five six
- one two three four five six seven
- one two three four five six seven eight
- one two three four five six seven eight nine
- one two three four five six seven eight nine ten
- one two three four five six seven eight nine ten eleven
- one two three four five six seven eight nine ten eleven twelve
- one two three four five six seven eight nine ten eleven twelve thirteen
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine
- one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty