clean up readme

README.md

@@ -1,157 +1,24 @@
 # kdl - Kat's Document Language
 
-kdl is a document language, mostly based on [SDLang](https://sdlang.org), with
+[kdl](https://github.com/kdoclang/kdl) is a document language, mostly based on [SDLang](https://sdlang.org), with
 xml-like semantics that looks like you're invoking a bunch of CLI commands!
 
 It's meant to be used both as a serialization format and a configuration
 language, and is relatively light on syntax compared to XML.
 
-## Intro
+This repository is the official/reference implementation in Rust, and
-
+corresponds to [the kdl crate](https://crates.io/crates/kdl)
-The basic syntax is similar to SDLang:
-
-```kdl
-// This is a node with a single string value
-title "Hello, World"
-
-// Multiple values are supported, too
-bookmarks 12 15 188 1234
-
-// Nodes can have properties
-author "Alex Monad" email="alex@example.com" active=true
-
-// Nodes can be arbitrarily nested
-contents {
-  section "First section" {
-    paragraph "This is the first paragraph"
-    paragraph "This is the second paragraph"
-  }
-}
-
-// Nodes can be separated into multiple lines
-title \
-  "Some title"
-
-// Comment formats:
-
-// C++ style
-
-/*
-C style multiline
-*/
-
-tag /*foo=true*/ bar=false
-```
-
-But kdl changes a few details:
-
-```kdl
-// Files must be utf8 encoded!
-smile "😁"
-
-// Instead of anonymous nodes, nodes and properties can be wrapped
-// in "" for arbitrary node names.
-"!@#$@$%Q#$%~@!40" "1.2.3" "!!!!!"=true
-
-// The following is a legal bare identifier:
-foo123~!@#$%^&*.:'|<>/?+ "weeee"
-
-// kdl specifically allows properties and values to be
-// interspersed with each other, much like CLI commands.
-foo bar=true "baz" quux=false 1 2 3
-
-// strings can be multiline as-is, without a different syntax.
-string "my
-multiline
-value"
-
-// raw/unescaped strings use the "r" prefix on string literals and
-// otherwise behave the same, including multiline support.
-raw r"C:\Users\kdl"
-
-// You can add any number of # after the r and the last " to
-// disambiguate literal " characters.
-other-raw r#"hello"world"#
-
-// There is a single decimal number type, much like JSON's.
-num 1.234e-42
-
-// Numbers can have underscores to help readability:
-bignum 1_000_000
-
-// There is additional support for literal hexadecimal, octal, and binary input.
-my-hex 0xdeadbeef
-my-octal 0o755
-my-binary 0b1010_1101
-```
-
-The following SDLang features are removed altogether:
-
-* "Anonymous" nodes
-* Binary data literals
-* Date/time formats
-* `on` and `off` booleans
-* Backtick strings
-* Semicolons
-* Namespaces with `:`
-* Shell style (`#`) and Lua-style (`--`) comments
-* Distinction between 32/64/128-bit numbers. There's just numbers.
 
 ## Design and Discussion
 
 kdl is still extremely new, and discussion about the format should happen over
-on the [discussions page](https://github.com/zkat/kdl/discussions). Feel free
+on the [spec repo's discussions
-to jump in and give us your 2 cents!
+page](https://github.com/kdoclang/kdl/discussions). Feel free to jump in and
+give us your 2 cents!
 
-## Grammar
+## License
 
-```
+The code in this repository is covered by [the Parity License](LICENSE.md), a
-nodes := linespace* (node (newline nodes)? linespace*)?
+strong copyleft license. That means that you can only use this project if
-
+you're working on an open source-licensed product (MIT/Apache projects are
-node := identifier (node-space node-argument)* (node-space node-document)? single-line-comment?
+ok!)
-node-argument := prop | value
-node-children := '{' nodes '}'
-node-space := ws* escline ws* | ws+
-
-identifier := [a-zA-Z] [a-zA-Z0-9!$%&'*+\-./:<>?@\^_|~]* | string
-prop := identifier '=' value
-value := string | raw_string | number | boolean | 'null'
-
-string := '"' character* '"'
-character := '\' escape | [^\"]
-escape := ["\\/bfnrt] | 'u{' hex-digit{1, 6} '}'
-hex-digit := [0-9a-fA-F]
-
-raw-string := 'r' raw-string-hash
-raw-string-hash := '#' raw-string-hash '#' | raw-string-quotes
-raw-string-quotes := '"' .* '"'
-
-number := decimal | hex | octal | binary
-
-decimal := integer ('.' [0-9]+)? exponent?
-exponent := ('e' | 'E') integer
-integer := sign? [0-9] [0-9_]*
-sign := '+' | '-'
-
-hex := '0x' hex-digit (hex-digit | '_')*
-octal := '0o' [0-7] [0-7_]*
-binary := '0b' ('0' | '1') ('0' | '1' | '_')*
-
-boolean := 'true' | 'false'
-
-escline := '\\' ws* (single-line-comment | newline)
-
-linespace := newline | ws | single-line-comment
-
-newline := ('\r' '\n') | '\n'
-
-ws := bom | ' ' | '\t' | multi-line-comment
-
-single-line-comment := '//' ('\r' [^\n] | [^\r\n])* newline
-multi-line-comment := '/*' ('*' [^\/] | [^*])* '*/'
-```
-
-## LICENSE
-
-The above grammar/spec is licensed CC-BY-SA. The included [LICENSE.md
-file](LICENSE.md) in this repository only covers this implementation.