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### `brew gist-logs ` link OR `brew config` AND `brew doctor` output
```shell
$ brew config
HOMEBREW_VERSION: 2.2.2
ORIGIN: https://github.com/Homebrew/brew
HEAD: 13f508d0dc8ada1726ee09a750285d…
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Hi,
Sorry about my confusion as I'm new to this..
**First Issue**
On the webpage: [http://bnfc.digitalgrammars.com/tutorial/bnfc-tutorial.html](http://bnfc.digitalgrammars.com/tutorial/bnfc-tut…
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Am trying to just compile the cubicaltt file in [](https://github.com/mortberg/cubicaltt/blob/master/Exp.cf)
Will someone please discuss how to resolve the bnfc grammar error i get when I run make …
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```
A. S ::= "A"; x -- Here is a superfluous character
B. S ::= "B";
```
BNFC swallows this, but then the generated parser does not compile.
In the `.y` file, this grammar turns into:
```
S ::…
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Example input:
``` c++
cout
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This might be the same problem as #353 .
From these files in the source directory:
```
LBNF
├── Abs.hs
├── ErrM.hs
├── Lex.hs
├── Lex.x
├── Par.hs
├── Par.y
├── Print.hs
├── Skel.hs
└── Te…
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This (evil) grammar fails with a parse error in the `Par.y` file raised by happy:
```
A. S := T;
B. T := S;
```
happy does not like empty `%token` list.
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Consider the grammar file `Tree.cf`:
```
layout "branches" ;
Node. Tree ::= Integer "branches" "{" [Tree] "}" ;
separator Tree ";" ;
```
and a sample file `tree.txt`:
```
1 branches
10 b…
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in t.cf:
> position token T letter+;
> ...
out dot.l:
> ...
> {alpha}+ if(Trace) System.Console.Error.WriteLine(yytext); yylval.identity_ = new dot.Absyn.Identity(yytext); return (int)Tokens.SYM…
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Encountered on version v2.8.4 (did not check others).
# How to reproduce
Create file `Instant.cf`:
```
Prog. Program ::= [Stmt] ;
SAss. Stmt ::= Ident "=" Exp;
SExp. Stmt ::= Exp ;
separator St…