[AppleScript] sregex compatibility

[michaelblyons]

See #481

There's lots more that could be done to improve this package, but I've killed the lookbehinds and added a couple of subscopes. Also, there's a test file for the first time.

[jrappen]

Thanks for working on this.

I still have some left-overs from rainy days from autumn with what I started with while going through this package. Should I send you a zip via Discord?

[michaelblyons]

Okay, now I'm doing more work on it.

[michaelblyons]

Not a full rebuild from spec and there are definitely some broken pieces, but it's lots better. Has some good building contexts if someone wants to push forward with Apple's crazy blocks.

[jrappen]

I noticed a few things:

• Language constants (as an example, there are many others), are they actually \b(?i:false)\b or rather \b(?:[Ff]alse|FALSE)\b? Seemed odd at first glance over.
• If you match a group of words, sometimes you use (one two), sometimes (one\s+two).
• You could make use of:

  variables:
    leading_wspace: (?:^\s*)

  as you use it a lot.
• You can just indent the lines you test a bit, makes writing the assertions on the following lines easier. Like:

    test
  # ^^^^ scope
  

  instead of:

  test
  # <- scope
  #^^^ scope
  

[jrappen]

# SYNTAX TEST "Packages/AppleScript/AppleScript.sublime-syntax"

[michaelblyons]

• Language constants (as an example, there are many others), are they actually \b(?i:false)\b or rather \b(?:[Ff]alse|FALSE)\b? Seemed odd at first glance over.

Most of those were inherited. I guess I could check them against the spec, but I did see a line in the spec saying that almost everything is case insensitive.

• If you match a group of words, sometimes you use (one two), sometimes (one\s+two).

Most of this is inherited, too. The only part I remember with a space is in the raw Unicode part, which isn't fully spec-conforming yet anyway.

• You could make use of:

  variables:
    leading_wspace: (?:^\s*)

I guess I could, but {{leading_wspace}} is longer than ^\s*.

• You can just indent the lines you test a bit, makes writing the assertions on the following lines easier. Like:

    test
  # ^^^^ scope
  

  instead of:

  test
  # <- scope
  #^^^ scope
  

Good thought. Will change.