. does not match '\u2028'

[raine]

Not sure if intentional. If so, how can I match it?

start -> .

const nearley = require('nearley')
const grammar = require('./test')

const parser = new nearley.Parser(
  nearley.Grammar.fromCompiled(grammar)
)

parser.feed('\u2028')

Error: invalid syntax at line 1 col 1:

  

  ^
Unexpected "
"

[tjvr]

I'm not sure, but perhaps you want [^] rather than .?

_{Sent with GitHawk}

[raine]

Interesting. How does that work and why isn't it same as .?

[tjvr]

It's a quirk of JS RegExps. Quoting from the readme of a different project:

the dot /./ doesn't include newlines. Use [^] instead if you want to match newlines too.

Since an excluding character ranges like /[^ ]/ (which matches anything but a space) will include newlines, you have to be careful not to include them by accident!

The character class [^] matches anything. ^ in a character class means "anything but", so following it with an empty set just means "anything".

The dot . excludes newlines by default, unless you use the dotAll modifier, which Nearley doesn't.

_{Sent with GitHawk}

[abitrolly]

@kach is there a place in docs to document dot . behavior and list things like [^]? I came to ask the same question - why . doesn't match newlines.