/
grammar.bgf
132 lines (132 loc) · 3.28 KB
/
grammar.bgf
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<bgf:grammar xmlns:bgf="http://planet-sl.org/bgf">
<bgf:production>
<nonterminal>Program</nonterminal>
<bgf:expression>
<plus><bgf:expression>
<nonterminal>Function</nonterminal>
</bgf:expression></plus>
</bgf:expression>
</bgf:production>
<bgf:production>
<nonterminal>Function</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Name</nonterminal>
</bgf:expression> <bgf:expression>
<plus><bgf:expression>
<nonterminal>Name</nonterminal>
</bgf:expression></plus>
</bgf:expression> <bgf:expression>
<terminal>=</terminal>
</bgf:expression> <bgf:expression>
<nonterminal>Expr</nonterminal>
</bgf:expression> <bgf:expression>
<plus><bgf:expression>
<nonterminal>Newline</nonterminal>
</bgf:expression></plus>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
<bgf:production>
<label>binary</label>
<nonterminal>Expr</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Expr</nonterminal>
</bgf:expression> <bgf:expression>
<nonterminal>Ops</nonterminal>
</bgf:expression> <bgf:expression>
<nonterminal>Expr</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
<bgf:production>
<label>apply</label>
<nonterminal>Expr</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<nonterminal>Name</nonterminal>
</bgf:expression> <bgf:expression>
<plus><bgf:expression>
<nonterminal>Expr</nonterminal>
</bgf:expression></plus>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
<bgf:production>
<label>ifThenElse</label>
<nonterminal>Expr</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>if</terminal>
</bgf:expression> <bgf:expression>
<nonterminal>Expr</nonterminal>
</bgf:expression> <bgf:expression>
<terminal>then</terminal>
</bgf:expression> <bgf:expression>
<nonterminal>Expr</nonterminal>
</bgf:expression> <bgf:expression>
<terminal>else</terminal>
</bgf:expression> <bgf:expression>
<nonterminal>Expr</nonterminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
<bgf:production>
<nonterminal>Expr</nonterminal>
<bgf:expression>
<sequence>
<bgf:expression>
<terminal>(</terminal>
</bgf:expression> <bgf:expression>
<nonterminal>Expr</nonterminal>
</bgf:expression> <bgf:expression>
<terminal>)</terminal>
</bgf:expression>
</sequence>
</bgf:expression>
</bgf:production>
<bgf:production>
<label>argument</label>
<nonterminal>Expr</nonterminal>
<bgf:expression>
<nonterminal>Name</nonterminal>
</bgf:expression>
</bgf:production>
<bgf:production>
<label>literal</label>
<nonterminal>Expr</nonterminal>
<bgf:expression>
<nonterminal>Int</nonterminal>
</bgf:expression>
</bgf:production>
<bgf:production>
<label>minus</label>
<nonterminal>Ops</nonterminal>
<bgf:expression>
<terminal>-</terminal>
</bgf:expression>
</bgf:production>
<bgf:production>
<label>plus</label>
<nonterminal>Ops</nonterminal>
<bgf:expression>
<terminal>+</terminal>
</bgf:expression>
</bgf:production>
<bgf:production>
<label>equal</label>
<nonterminal>Ops</nonterminal>
<bgf:expression>
<terminal>==</terminal>
</bgf:expression>
</bgf:production>
</bgf:grammar>