Browsable Rascal Boolean Grammar

Grammar connected by Vadim Zaytsev, see the Grammar Zoo entry for details: api/rascal/boolean/connected
Source used for this grammar: Jurgen J. Vinju, Paul Klint, Boolean, 2009–2013 [Explore]

Summary

• Total 4 production rules with 9 top alternatives and 33 symbols.
• Vocabulary: 12 = 4 nonterminals + 1 terminals + 5 labels + 2 markers.
• Total 4 nonterminal symbols: 4 defined (bool, int, real, str), 0 root (—), 2 top (int, real), 0 bottom (—).
• Total 1 terminal symbols: 0 keywords (—), 0 letters (—), 0 numerics (—), 1 signs (".").
• Total 5 labels: [arbBool], [fromString], [toInt], [toReal], [toString].
• Total 2 markers: ⟨s⟩, ⟨b⟩ ³.

Syntax

bool ::=
	[arbBool]::ε
	[fromString]::⟨s⟩:str
	boolean

int ::=
	[toInt]::⟨b⟩:bool
	integer

real ::=
	[toReal]::⟨b⟩:bool
	integer "." integer

str ::=
	[toString]::⟨b⟩:bool
	string

Maintained by Dr. Vadim Zaytsev a.k.a. @grammarware. Last updated in September 2015. [↑]