jaskell.parsec

Ahead use a parser to parse state, return the result and rollback whatever

Atom parsers, like one, eof, return and failed, equals and not equals, etc.

Between parse the open parser, and then sub parser, and then close parser, return sub parser result if success.

Choice just the operator <|> in Haskell parsec

Parsec Combinators

Common State has int status and transaction market. It can apply to Seq[T] or any serial collection.

EndBy p sep parses zero or more occurrences of p, separated and ended by sep. Returns a seq of values returned by p.

EndBy1 p sep parses one or more occurrences of p, separated and ended by sep. Returns a seq of values returned by p.

check next content if a \n char or \r\n

Find try and next util success or eof.

TODO

TODO

Many try to parse the parse more times, and collect all results into a Seq. Many could success 0 to any times.

Many try to parse the parse more times, and collect all results into a Seq. Many must success once at lest

manyTill p end applies parser p zero or more times until parser end succeeds. Returns the list of values returned by p. This parser can be used to scan comments.

Newline match \n char

NoWhitespace success if the char is't any whitespace.

NoneOf success if get a item none of any in prepared

OneOf success if item equals one of prepared.

Opt x p tries to apply parser p. If p fails without consuming input, it returns the value x, otherwise the value returned by p.

Parser throw ParsecException if failed.

TODO

sepBy p sep parses zero or more occurrences of p, separated by sep. Returns a list of values returned by p.

SepBy1 p sep parses one or more occurrences of p, separated by sep. Returns a list of values returned by p.

SepEndBy p sep parses zero or more occurrences of p, separated and optionally ended by sep, ie. haskell style statements. Returns a seq of values returned by p.

SepEndBy1 p sep parses one or more occurrences of p, separated and optionally ended by sep. Returns a list of values returned by p.

Skip p applies the parser p zero or more times, skipping its result.

Skip1 p applies the parser p one or more times, skipping its result.

TODO

TODO

TODO

TODO

TODO

TODO

Functions Helper include parsers for Text

Txt State extends Common State trait. It special for text content analyst. Txt state could mark a status point in which line.

TODO