v0.4.4

FIXED 🐞

• metadata namespaced keyword were parcera.antlr.java when they were intended to be parcera.core
• end column value was calculated for the first character of the token not the last one.

v0.4.2

FIXED 🐞

• target java 1.8 (same as clojure 1.10) instead of travis ci default one

v0.4.1

FIXED 🐞

• missing generated java classes from antlr4

thanks to @borkdude for the report and clear insights :)

v0.4.0

BREAKING 💀

Parcera now uses Antlr4 as its parsing engine instead of Instaparse. 🚀

This drops the parsing time significantly. For comparison (on my machine) it took instaparse 3 seconds to parse clojure.core file (~8k loc), with antlr this drops to 100 milliseconds. Converting it to clojure persistent data structures adds some overhead but it is still way faster than instaparse in all cases that I tested.

Clojurescript support was dropped for the time being.

CHANGES

• all - in keywords were changed to _ to allow compatibility with antlr4 allowed characters
  • :simple-keyword -> :simple_keyword
  • :macro-keyword -> :macro_keyword
  • :conditional-splicing -> :conditional_splicing
  • :namespaced-map -> :namespaced_map
  • :reader-macro -> :reader_macro
  • :metadata-entry -> :metadata_entry
  • :auto-resolve -> :auto_resolve
  • var-quote -> :var_quote
• keywords now dont include the : or :: as part of their content and follow Clojure's name syntax
• parcera/clojure function was renamed to parcera/ast for clarity on its purpose
  • ast returns a lazy sequence instead of the eager implementation from Instaparse
• parcera now checks that maps, sets literals conform to Clojure syntax

v0.3.1

FIXED 🐞

• some invalid symbols were allowed
• some valid keyword were parsed as keyword + symbol

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.

v0.2.1

CHANGED

• parcera.slurp/slurp is now exposed directly with macros. See #16

v0.2.0

ADDED

• Clojurescript support. Parcera now can be run inside Javascript environments :)

FIXED

• symbol rules for special characters like ;,/^

v0.1.3

CHANGED

• symbols regex now matches anything that is not forbidden instead of only allowed characters

v0.1.2

FIXED

• allow unicode on symbols and keywords