v0.3.0

BREAKING 💀

This release makes parcera 3 times faster 🚀

Most of these changes related to the advices in Instaparse performance notes. Unfortunately this lead to some breaking changes to make it work 😞. Sorry for the inconvenience.

CHANGES

• :simple-keyword
  • before [:simple-keyword "hello/world"]
  • now [:simple-keyword ":hello/world"]. Note the : at the beginning
• :macro-keyword
  • before [:macro-keyword "hello"]
  • now [:macro-keyword "::hello"]. Note the :: at the beginning
• :string
  • before [:string "hello world"]
  • now [:string "\"hello world\""]. Note that \" is part of the content
• :regex
  • before [:regex "hello-world"]
  • now [:regex "#\"hello world\""]. Note that #\" is part of the content
• :whitespace
  • before [:whitespace ""]
  • now [:whitespace " \n"]. Note that whitespace now cannot be empty
• :function
  • before [:function [:list ... ]]
  • now [:function ... ]. Note that now the content of the function is directly associated with the function not with the enclosing list
• :tag now only matches for literal and collections
• :conditional and :conditional-splicing
  • before [:conditional [:list ... ]]
  • now [:conditional ... ]. Note that now the content of the conditional is directly associated with the macro not with the enclosing list
• :character
  • before [:character "u1234"]
  • now [:character "\u1234"]. Note that \ is part of the content

REMOVED

• character, symbol, simple-keyword, macro-keyword, number, string and regex are now defined outside of the grammar string as regexes. This is to increase reusability of those regexes.

• map-namespace no longer exists

  • before [:map [:map-namespace [:simple-keyword "hello"]] [:map-content ....]]
  • now [:map ...]. Note the that the namespace is no longer part of map

• comment rule was removed and included inside :whitespace.

  • before [:comment "hello world"]
  • now [:whitespace " ;hello world"]. Note the ; in the middle and the whitespace (if any)

ADDED

• :namespaced-map grammar rule.
  • before [:map [:map-namespace [:simple-keyword "hello"]] [:map-content ... ]]
  • now [:namespaced-map [:simple-keyword ":hello"] [:map ... ]]. This way we re-use the map rule definition and focus on the namespace as a distinctive characteristic instead of an optional "attribute" of a map.