remark-lint-list-item-spacing

remark-lint-list-item-spacing

Warn when list looseness is incorrect, such as being tight when it should be loose, and vice versa.

According to the markdown-style-guide, if one or more list-items in a list spans more than one line, the list is required to have blank lines between each item. And otherwise, there should not be blank lines between items.

By default, all items must be “loose” (a blank line must be between them) if one or more items are multiline (span more than one line). Otherwise, the list must be tight (no blank line must be between items).

If you pass {checkBlanks: true}, all items must be “loose” if one or more items contain blank lines. Otherwise, the list must be tight.

Presets

This rule is included in the following presets:

Preset	Setting
remark-preset-lint-markdown-style-guide

Example

valid.md

In

A tight list:

-   item 1
-   item 2
-   item 3

A loose list:

-   Wrapped
    item

-   item 2

-   item 3

Out

No messages.

invalid.md

In

A tight list:

-   Wrapped
    item
-   item 2
-   item 3

A loose list:

-   item 1

-   item 2

-   item 3

Out

4:9-5:1: Missing new line after list item
5:11-6:1: Missing new line after list item
11:1-12:1: Extraneous new line after list item
13:1-14:1: Extraneous new line after list item

valid.md

When configured with { checkBlanks: true }.

In

A tight list:

-   item 1
    - item 1.A
-   item 2
    > Blockquote

A loose list:

-   item 1

    - item 1.A

-   item 2

    > Blockquote

Out

No messages.

invalid.md

When configured with { checkBlanks: true }.

In

A tight list:

-   item 1

    - item 1.A
-   item 2

    > Blockquote
-   item 3

A loose list:

-   item 1
    - item 1.A

-   item 2
    > Blockquote

Out

5:15-6:1: Missing new line after list item
8:17-9:1: Missing new line after list item
15:1-16:1: Extraneous new line after list item

Install

npm install remark-lint-list-item-spacing

Usage

You probably want to use it on the CLI through a config file:

 ...
 "remarkConfig": {
   "plugins": [
     ...
     "lint",
+    "lint-list-item-spacing",
     ...
   ]
 }
 ...

Or use it on the CLI directly

remark -u lint -u lint-list-item-spacing readme.md

Or use this on the API:

 var remark = require('remark');
 var report = require('vfile-reporter');

 remark()
   .use(require('remark-lint'))
+  .use(require('remark-lint-list-item-spacing'))
   .process('_Emphasis_ and **importance**', function (err, file) {
     console.error(report(err || file));
   });

License

MIT © Titus Wormer