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| [11 earlier articles] |
| Re: Languages with optional spaces DrDiettrich1@netscape.net (Hans-Peter Diettrich) (2020-03-01) |
| Re: Languages with optional spaces christopher.f.clark@compiler-resources.com (Christopher F Clark) (2020-03-01) |
| Re: Languages with optional spaces drikosev@gmail.com (Ev. Drikos) (2020-03-01) |
| Re: Languages with optional spaces christopher.f.clark@compiler-resources.com (Christopher F Clark) (2020-03-02) |
| Re: Languages with optional spaces drikosev@gmail.com (Ev. Drikos) (2020-03-02) |
| Re: Languages with optional spaces gah4@u.washington.edu (2020-03-02) |
| Re: Languages with optional spaces drikosev@gmail.com (Ev. Drikos) (2020-03-12) |
| Re: Languages with optional spaces gene.ressler@gmail.com (Gene) (2020-04-14) |
| Re: Languages with optional spaces mertesthomas@gmail.com (2020-04-19) |
| Re: Languages with optional spaces aston.goldsmith@gmail.com (2020-05-05) |
| From: | "Ev. Drikos" <drikosev@gmail.com> |
| Newsgroups: | comp.compilers |
| Date: | Thu, 12 Mar 2020 17:45:51 +0200 |
| Organization: | Aioe.org NNTP Server |
| References: | 20-02-015 20-02-016 |
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| Keywords: | lex |
| Posted-Date: | 13 Mar 2020 08:26:08 EDT |
| Content-Language: | en-US |
On 21/02/2020 08:38, Jerry wrote:
> class Lexer:
> """
> Lexer emulates quirky Applesoft tokenizer as closely as possible.
>
> Thus, it diverges from what a normal lexer would do. In
> particular, spaces are completely insignificant, except within
> strings, except if it finds "AT" followed by a space and then an
> "N" appears. That is parsed as "AT N", not "ATN". Fun?;)
> """
Hello,
Lacking any Python skills, I can't test the lexer but if this comment is
accurate, then any spaces in literals should normally be ignored.
The AppleSoft II manual in page 69 at www.classiccmp.org/cini/pdf/Apple/
implies that spaces are also important in literals after first position,
similar comment in the Basic dialect supported by the Compukit UK101 at
http://uk101.sourceforge.net/docs/index.html
Rather than critique, it's a detail I'm interested in, see next question.
Ev. Drikos
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