-x::="x"
// interactions between !=> and &~ mean that I need to rethink the chartage
// indentation styling...
// literal blocks [[need to ignore bracing]] double-colon style?
// image
// figures
+// "reference-style" links
+//
+// this[1] is fun
+//
+// [1] http://...
+//
+
+// nonbreaking text?
+// degree: 15^o
+// Arrows: <- -> => <= <->
+
+// textblocks:
+// - attention, caution, danger, error, hint, important, note, tip, warning
+// definition
+// sidebar
+// figure-with-caption
+// epigraph (end-of-chapter note)
+// compound paragraph (??)
+// csv-table?
+// table of contents
+// header, footer
+// #include
+
+// simple macros (#define) (\define)
+
+// table representation
+//
+// \table
+// a bbb c
+// ddd e
+//
+// [a] ...
+// [b] ...
+// [c] ...
+
// FIXME: these have to go at the top so they have their dropAll bit set before PreSequence.build...
-ws !::= w**
-w !::= [\r\n\ ]
-nw ::= ~[\r\n\ ]
+w = " " | "\n" | "\r"
+ws = "()":: w**
+// | "()":: w** "#" (~[\n])* "\n" ws
+nw = ~[\r\n\ ]
//////////////////////////////////////////////////////////////////////////////
-s ::= {Doc} => top
-
-Doc ::= Header Body /ws => doc
-Header ::= "header" { kv */ ws } /ws => header
-Body ::= Section*/ws => body
-Section ::= SectionHeader Paragraph*/ws /ws => section
-SectionHeader ::= "==" SectionHeaderBody "=="
-SectionHeaderBody ::= "=" SectionHeaderBody "="
- > ws text ws
-
-kv ::= word "=" text /ws => kv1
-
-num !::= [0-9]++
-Paragraph ::= { "\"\"" ws text } => "blockquote"
- > { "*" " " ws text } => "ul"
- > { "#" " " ws text } => "ol"
- > { num " " ws text } => "ol"
- > { "---" "-"* } => "hr"
- > { text } => "p"
-
-text ::= item => "t"
-itemx ::= ws item => "w" | ()
-item ::= blockquote => "b"
- > pre itemx => "a"
- > structured itemx => "1"
- > structuredx itemx => "2"
- > styled itemx => "3"
- > qtext itemx => "4"
- > alphanum++ itemx => "5"
- > symbol itemx => "6"
-// > sym++ itemx => []
- > Paragraph itemx => "7"
-
-symbol ::= sym++
-
-blockquote ::= "\"\"" text "\"\"" => "blockquote"
- | "\"\"" block => "blockquote"
+s = Doc
+
+Doc = head:Header ws! body:Body
+Header = { "\\header" { KeyVal */ ws } /ws }
+Body = { Section } */ws
+Section = SectionHeader ws! Paragraph*
+SectionHeader = "==" SectionHeaderBody "=="
+SectionHeaderBody = "=" SectionHeaderBody "="
+ > ws! text ws!
+
+sp = " "**
+blank = sp! "\n" sp! "\n" ws!
+
+KeyVal = key:bareword "=" val:text /ws
+wp = w++
+num = [0-9]++
+
+Paragraph = { Blockquote:: "\"\" " text }
+ > HR:: { "---" "-"* }
+ > { OL:: (text &~ (text! ws! {oli}+)) ws! {oli}+ }
+ > P:: { text }
+
+onums = nums (". "|") ")!
+any = ~[]*
+
+uli = "* " (ws! text &~ any (oli|uli)!)
+oli = onums! (ws! text &~ any (oli|uli)!)
+
+text = Item
+
+Item*/ws =
+ blockquote
+// > ^"#" ws! { ~[]* }
+ > Verbatim
+ > InlineGrammar
+ > link
+ > structured
+ > styled
+ > (Chars:: alphanum++)
+ > Quotes:: "\"" text "\""
+ > (Symbol:: sym++)
+ > { Block:: text }
+
+word = Chars:: bareword
+
+blockquote = "adsfafewag"
+//blockquote = Blockquote:: "\"\"" (block | text "\"\"")
-qtext ::= "\"" text "\"" => "quoted"
-pre ::= "[verbatim]" { ~[]+ } /ws => "verbatim" // FIXME doesn't work
-
-styled ::= "__" text "__" => ul
- | "((" text "))" => footnote
- | ( "[[" text "]]" => tt
- > "[" word "]" => citation
- )
- | "!!" text "!!" => strikethrough
- | "^^" (word|block) => superscript
- | ",," (word|block) => subscript
- | "\\sc" block => smallcap
- | "**" text "**" => bold
- | "!" (word|block) => keyword
- > "*" text "*" => it
-
-block ::= { text }
-structured ::= { text } "->" (url|email) => link
- //> alphanum++ "->" (url|email) => link
-structuredx ::= glyph
+Verbatim = "[verbatim]" ws! { (~[])++ }
+
+#import meta.g as meta
+InlineGrammar = "\grammar" ws! { meta.Grammar }
+
+styled = Underline:: "__" text "__"
+ | Footnote:: "((" text "))"
+ | TT:: "[[" text "]]"
+ | Citation:: "[" word "]"
+ | Strikethrough:: "!!" text "!!"
+ | Superscript:: "^^" (word|block)
+ | Subscript:: ",," (word|block)
+ | Smallcap:: "\\sc" block
+ | Bold:: "++" text "++"
+ | Keyword:: "!" (word|block)
+ | Italic:: "**" text "**"
+
+block = { text }
+
+link = text:({ text }|word) "->" ws! href:href
+href = url | email | {href}
+
+structured = command & "\\" ([a-zA-Z0-9]++)! block?
+ > glyph
> email
> url
-glyph ::= "(r)" | "(c)" | "(tm)" | "--" // euro symbol?
- | "\\today" -> ~[a-z] => today
+glyph = euro:: "(e)"
+ | r:: "(r)"
+ | c:: "(c)"
+ | tm:: "(tm)"
+ | emdash:: "--"
+ | ellipses:: "..."
+ | cent:: "\\cent"
+
+command = "\\" [a-z]++
// URLs //////////////////////////////////////////////////////////////////////////////
// subtypes of url (ftp, etc) as conjunctions, but the "master pattern"
// only gets parsed once
-urlpath ::= urlchar*
-username ::= [a-zA-Z0-9;/?:&=$\-_.+]++
-password ::= [a-zA-Z0-9;/?:&=$\-_.+]++
-urlchar ::= [a-zA-Z0-9;/?:&=$\-_.+@]
- | "%" [0-9] [0-9] => "%"
-url ::= "mailto" ":" email
- > method "://" url_login? host (":" port)? ("/" urlpath)? => "url"
-url_login ::= username (":" password) "@" => "login"
-method ::= [+\-.a-z0-9]+
-port ::= [0-9]+
-
-domain ::= (part +/ ".") -> ~"."
-part ::= [a-zA-Z0-9\-]++ // interesting use of boolean grammars
+urlpath = urlchar* -> ~urlv // this ~urlv should be handled by url! bug!
+username = [a-zA-Z0-9;/?:&=$\-_.+]++
+password = [a-zA-Z0-9;/?:&=$\-_.+]++
+urlc = [a-zA-Z0-9;/?:&=$\-_.+@]
+urlv = urlc | [%]
+urlchar = urlc
+ | urlescape:: "%" [0-9] [0-9]
+url = Mailto:: "mailto" ":" email -> ~urlv
+ > URL::
+ method:method
+ "://"
+ login:url_login?
+ host:host
+ port:(":" nums)?
+ path:("/" urlpath)?
+ ref:("#" urlpath)?
+ -> ~(urlv|[\#])
+url_login = Login:: username:username password:(":" password) "@"
+method = [+\-.a-z0-9]+
+domain = (part +/ ".") -> ~"."
+part = [a-zA-Z0-9\-]++
+// interesting use of boolean grammars
// &~ ([\-0-9] ~[]* | ~[]* [\-0-9])
-email ::= username "@" host -> ~[.] => emailaddr
-host ::= [0-9]+ "." [0-9]+ "." [0-9]+ "." [0-9]+ => "ip"
- | domain
+email = user:username "@" host:host -> ~[.]
+nums = [0-9]++
+host = IP:: nums "." nums "." nums "." nums
+ | DNS:: domain
// Tokens ///////////////////////////////////////////////////////////////////
-word ::= alphanum++
+bareword = alphanum++
| quoted
-quoted ::= "\"" ((~[\"\\] | escaped)+) "\""
- | "\"\"" => ""
-escaped ::= "\\n" => "\n"
- | "\\r" => "\r"
+quoted = "\"" ((~[\"\\] | escaped)+) "\""
+ | "\"\"":: "\"\""
+escaped = lf:: "\\n"
+ | cr:: "\\r"
| "\\" ~[nr]
// Chars ///////////////////////////////////////////////////////////////
-alpha ::= [a-zA-Z]
-//num ::= [0-9]
-alphanum ::= [a-zA-Z0-9]
-sym ::= ~[a-zA-Z0-9\ \r\n=\">]
+alpha = [a-zA-Z]
+alphanum = [a-zA-Z0-9]
+sym = ~[a-zA-Z0-9\ \r\n=\">]
+//sym = [,()]
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