FR: Add horizontal line after heading (H2)

[Bad3r]

Is Your Feature Request Related to a Problem? Please Describe.

Automatically add a horizontal line or horizontal rule after type 2 headings or 1

Describe the Solution You'd Like

A toggle option to enable automatically adding a horizontal line after H2 heading

Please include an example where applicable:

## Title
content

## Title
---

Content

Describe Alternatives You've Considered

A clear and concise description of any alternative solutions or features you've considered.

Additional Context

Add any other context or screenshots about the feature request here.

[pjkaufman]

Hey @Bad3r . Thanks for the request. Is there a reason you are not trying to solve this via a custom replacement (i.e. regex)?

[Bad3r]

Hey @Bad3r . Thanks for the request. Is there a reason you are not trying to solve this via a custom replacement (i.e. regex)?

While it's possible to solve by regex I feel like it's a common use case. For example, GitHub automatically does that for markdown files.

It would be a great & “simple” feature to add.

[Bad3r]

Hey @Bad3r . Thanks for the request. Is there a reason you are not trying to solve this via a custom replacement (i.e. regex)?

I am having an issue with regex sloution..

I am using the following:

• find regex (## [^\n]+)\n(?!---)
• the replace regex $1\n---\n

even though the find regex should exclude H2 headers that are already followed by a horizontal line ((?!---)) the linter matches them and endlessly adds a new horizontal line after every H2.

When I text it in regex 101 (https://regex101.com/) the issue is not reproducible

link to test: https://regex101.com/r/npn3HT/1

test case:

## Header A
---

## Header B 
test

## header C

[pjkaufman]

Hey @Bad3r . Thanks for the request. Is there a reason you are not trying to solve this via a custom replacement (i.e. regex)?

I am having an issue with regex sloution..

I am using the following:

• find regex (## [^\n]+)\n(?!---)
• the replace regex $1\n---\n

even though the find regex should exclude H2 headers that are already followed by a horizontal line ((?!---)) the linter matches them and endlessly adds a new horizontal line after every H2.

When I text it in regex 101 (https://regex101.com/) the issue is not reproducible

link to test: https://regex101.com/r/npn3HT/1

test case:

## Header A
---

## Header B 
test

## header C

I will have to take a look at this when I get a chance. It could be that the regex is getting escaped improperly which could cause the issue.

[Bad3r]

Hey @Bad3r . Thanks for the request. Is there a reason you are not trying to solve this via a custom replacement (i.e. regex)?

I am having an issue with regex sloution.. I am using the following:

• find regex (## [^\n]+)\n(?!---)
• the replace regex $1\n---\n

even though the find regex should exclude H2 headers that are already followed by a horizontal line ((?!---)) the linter matches them and endlessly adds a new horizontal line after every H2. When I text it in regex 101 (regex101.com) the issue is not reproducible link to test: regex101.com/r/npn3HT/1 test case:

## Header A
---

## Header B 
test

## header C

I will have to take a look at this when I get a chance. It could be that the regex is getting escaped improperly which could cause the issue.

Fixed it by using the regex (## [^\n]+)\n(?!\s*---) its not an escaping issue but seems like something I was using wasn't supported by the engine.

I still think this should be a builtin feature. Feel free to close if you disagree.