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[bug #35063] Suggest conventional $(%XX) syntax for special characters


From: Eldar Abusalimov
Subject: [bug #35063] Suggest conventional $(%XX) syntax for special characters
Date: Sat, 28 Jan 2012 20:06:17 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.1 (KHTML, like Gecko) Ubuntu/11.04 Chromium/14.0.835.202 Chrome/14.0.835.202 Safari/535.1

Follow-up Comment #5, bug #35063 (project make):

Well, when saying "altering the basic syntax" I mean changing the semantics of
'$(...)' notation, which currently stands for expanding a variable reference
or invoking a built-in function.

Personally for me it is unclear what '$(%20)' or '$(.%20)' means. If we
perceive it just as a variable reference, then what would '$(value %20)' or
'$(call %20)' return? I guess, it still should be a space. Also, what's about
computed references, like '$(%$(twenty))', or the one I told about in my
previous comment? In such case the problem can't be solved only by the
tokenizer and requires '%XX' special variables to be defined.

Finally, encoding/decoding multiple characters at once becomes a pain. For
example, how do I properly unescape 'Hello%2C%20world%21' string (assuming it
is computed somewhere, that is not literal)?

However, I agree, that Paul is to make the final decision.

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