Link labels cannot be empty #450
Description
empty Link Labels should not be parsed
via CommonMark, but should be logical regardless:
A link label begins with a left bracket ([) and ends with the first right
bracket (]) that is not backslash-escaped. Between these brackets there must
be at least one non-whitespace character.
Steps to reproduce
const fs = require('fs')
const remark = require("remark")
const inspect = require('unist-util-inspect')
const tree = remark().parse(`[ ] brackets with white space inside`)
console.log(inspect(tree))$ node view-ast.js
root[1] (1:1-1:37, 0-36)
└─ paragraph[2] (1:1-1:37, 0-36)
├─ linkReference[1] (1:1-1:4, 0-3) [identifier=" "][label=" "][referenceType="shortcut"]
│ └─ text: " " (1:2-1:3, 1-2)
└─ text: " brackets with white space inside" (1:4-1:37, 3-36)More through test; seems GFM Task List is OK with ignoring the Linked List:
https://astexplorer.net/#/gist/51df6d1a522d5a08c3017d92549345f9/ac9ddaca577f5115e7e220c74acbe786ab3a4a11
Expected behaviour
$ node view-ast.js
root[1] (1:1-1:37, 0-36)
└─ paragraph[2] (1:1-1:37, 0-36)
└─ text: "[ ] brackets with white space inside" (1:1-1:37, 3-36)cheers, & thanks for all your hard work!