Bill Allombert on Sat, 25 Oct 2025 12:46:45 +0200


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Re: [EXTERN] Re: Re: Definition of tokens in GP language 

On Sat, Oct 25, 2025 at 11:37:29AM +0200, Hong-Phuc Bui wrote:
> Before I try to do something impossible: did someone try to rewrite the lexer in lex?

Ah ah! Good idea. In fact, I did it already. 
See gp2c, file src/lang.l

https://pari.math.u-bordeaux.fr/cgi-bin/cgitweb.cgi?p=gp2c.git;a=blob_plain;f=src/lang.l;hb=HEAD

but it fails in some corner cases, I need to fix it:

echo "3!==6"| gp2c
stdin:1: syntax error, unexpected '='
Errors found: aborting...

Cheers,
Bill.