Message 191995 - Python tracker

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In-reply-to
Author	christian.heimes
Recipients	barry, benjamin.peterson, christian.heimes, jwilk, pitrou
Date	2013年06月28日.14:57:52
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1372431472.65.0.334700769741.issue18317@psf.upfronthosting.co.za>

Content
Thanks for the link plural.y! I was looking for a C file, not a YACC file. The AST approach has advantages over tokenizing. The tokenizer returns just symbols but the AST has also context information. It makes it much easier to distinguish between unary - and binary -. Gettext supports substraction but doesn't allow negative numbers. Python's gettext is not as strict as GNU gettext. For 3.4 I like to forbid oct and hex numbers, too.

Content

Thanks for the link plural.y! I was looking for a C file, not a YACC file.
The AST approach has advantages over tokenizing. The tokenizer returns just symbols but the AST has also context information. It makes it much easier to distinguish between unary - and binary -. Gettext supports substraction but doesn't allow negative numbers.
Python's gettext is not as strict as GNU gettext. For 3.4 I like to forbid oct and hex numbers, too.

History
Date	User	Action	Args
2013年06月28日 14:57:52	christian.heimes	set	recipients: + christian.heimes, barry, pitrou, benjamin.peterson, jwilk
2013年06月28日 14:57:52	christian.heimes	set	messageid: <1372431472.65.0.334700769741.issue18317@psf.upfronthosting.co.za>
2013年06月28日 14:57:52	christian.heimes	link	issue18317 messages
2013年06月28日 14:57:52	christian.heimes	create

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