GOLD - Grammar language

GOLD is a grammar language created in 2012.

#720on PLDB

12Years Old

GOLD is a free parsing system that is designed to support multiple programming languages.. Read more on Wikipedia...

GOLD website
GOLD Wikipedia page
GOLD first developed in California State University, Sacramento
goldparser.org was registered in 2011
See also: (10 related languages)ANTLR, Visual Basic, Assembly language, C#, D, Java, Pascal, Python, Visual Basic .NET, Regular Expressions

Example from the web:

<Statement> ::= if <Expression> then <Statements> end
            |  while <Expression> do <Statements> end
            |  for Id = <Range> do <Statements> end

Example from Wikipedia:

<Statements>  ::= <Statements> <Statement>
               |  <Statement>

<Statement>   ::= display <Expression>
               |  display <Expression> read ID
               |  assign ID '=' <Expression>
               |  while <Expression> do <Statements> end
               |  if <Expression> then <Statements> end
               |  if <Expression> then <Statements> else <Statements> end
               
<Expression>  ::= <Expression> '>'  <Add Exp>
               |  <Expression> '<'  <Add Exp>
               |  <Expression> '<=' <Add Exp>
               |  <Expression> '>=' <Add Exp>
               |  <Expression> '==' <Add Exp>
               |  <Expression> '<>' <Add Exp>
               |  <Add Exp>

<Add Exp>     ::= <Add Exp> '+' <Mult Exp>
               |  <Add Exp> '-' <Mult Exp>
               |  <Add Exp> '&' <Mult Exp>
               |  <Mult Exp>

<Mult Exp>    ::= <Mult Exp> '*' <Negate Exp>
               |  <Mult Exp> '/' <Negate Exp>
               |  <Negate Exp>

<Negate Exp>  ::= '-' <Value>
               |  <Value>

<Value>       ::= Identifier
               |  StringLiteral
               |  NumberLiteral
               |  '(' <Expression> ')'