@parser-generator/cli/lib/cjs/__tests__/grammar.txt

A Parser Generator that supports LL,SLR,LR1,LALR

<% import { Expr,Term, Factor } from "./ast"; %>

#TOKEN_PROTOTYPES
digit

<%
//脚本片段1
%>

#GRAMMAR
E->F T <% (e)=>new Expr(e)  %>;
T-> "+"F T| '-'F T | NIL <% (e)=>new Term(e) %>;
F->digit | '('E')' <% (e)=>new Factor(e)%>;

<%
//脚本片段2
%>

#SYMBOL_ASSOC_PREC
'+' left 0
'-' left 0
'*' left 1
'/' left 1

<%
//脚本片段3
%>