Do not capture whitespace between ATX heading's marker and content

[hendrikvanantwerpen]

Problem

The heading_content of ATX headings would include the whitespace between the heading marker and the heading text.

Example

Given an example file

# Top Heading 

Some contents

Executing the query

(section (atx_heading (atx_h1_marker) heading_content: (inline) @heading))

results in

pattern: 0
  capture: 0 - heading, start: (0, 1), end: (0, 13), text: ` Top Heading`

Changes

A new $_atx_heading_content rule allows optional whitespace before the line content that is captured in heading_content.

For the given example, the query now returns

pattern: 0
  capture: 0 - heading, start: (0, 2), end: (0, 13), text: `Top Heading`

[MDeiml]

Looks good and is going to make this node a bit more consistent. Thank you!

[hendrikvanantwerpen]

Thank you @MDeiml! In a related note, would it be possible to release a new version and publish it to crates.io? We're currently depending on the commit, but cargo is much slower with these than with releases, and we also cannot release our own crate if we want.

[petobens]

Hi @hendrikvanantwerpen! is it possible for you to implement a similar fix for #41?

[hendrikvanantwerpen]

@petobens I'm not able to do that at the moment. Perhaps my PR will give you an idea of how to try it?

[petobens]

Would love to but I'm afraid it's beyond my skill set.

[MDeiml]

As mentioned in the issue this change is a lot more complex than the one for ATX heading markers, but the workaround described there should be enough for almost all use cases.