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| How detect grammar not derive nonterminals ? borucki.andrzej@gmail.com (Andy) (2023-09-11) |
| Re: How detect grammar not derive nonterminals ? gah4@u.washington.edu (gah4) (2023-09-12) |
| Re: How detect grammar not derive nonterminals ? borucki.andrzej@gmail.com (Andy) (2023-09-13) |
| Re: How detect grammar not derive nonterminals ? 864-117-4973@kylheku.com (Kaz Kylheku) (2023-09-14) |
| Re: How detect grammar not derive nonterminals ? gah4@u.washington.edu (gah4) (2023-09-14) |
| From: | Andy <borucki.andrzej@gmail.com> |
| Newsgroups: | comp.compilers |
| Date: | Mon, 11 Sep 2023 08:58:17 -0700 |
| Organization: | Compilers Central |
| Injection-Info: | gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="86594"; mail-complaints-to="abuse@iecc.com" |
| Keywords: | parse, question |
| Posted-Date: | 12 Sep 2023 13:42:24 EDT |
The simplest this case is grammar :
A -> A
but I have
A -> B
A -> b B
B -> A
B -> a A
it is trap for sequence generator. A->B->A->B->A....
How detect similar cases, especially without computing First and Follow sets ?
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