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Making apostrophe, backtick, etc. hygienic?
From: |
Taylan Ulrich Bayırlı/Kammer |
Subject: |
Making apostrophe, backtick, etc. hygienic? |
Date: |
Sun, 30 Aug 2015 14:30:29 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
This is a bit of a crank idea, but here goes.
Today I wasted some time trying to find the bug in the following piece
of code:
(define (syntax-car syntax)
(syntax-case syntax () ((car . cdr) #'car)))
Better error reporting in macro-expansion errors might have made it less
painful, but maybe we can solve the problem itself.
How about making 'foo turn into something like (__quote__ foo), and
similar for `foo, #'foo, etc.? Where __quote__ is just a synonym to
quote, and the original works too. Ideal would be a symbol that's not
as noisy (in debug output) but still highly improbable to appear in user
code and be accidentally shadowed.
Maybe it would not be standards-compliant in the strict sense, but I
believe it would be an improvement.
Am I missing any obvious downsides? Or any subtle ones?
I peeked into Guile's sources to see where one might start implementing
this (read.c, expand.c, psyntax.scm?) but better to ask for some input
since it might be a controversial change, and I'm still a total noob in
Guile's code-base.
Taylan
- Making apostrophe, backtick, etc. hygienic?,
Taylan Ulrich Bayırlı/Kammer <=
- Re: Making apostrophe, backtick, etc. hygienic?, Panicz Maciej Godek, 2015/08/30
- Re: Making apostrophe, backtick, etc. hygienic?, Taylan Ulrich Bayırlı/Kammer, 2015/08/30
- Re: Making apostrophe, backtick, etc. hygienic?, Panicz Maciej Godek, 2015/08/30
- Re: Making apostrophe, backtick, etc. hygienic?, Taylan Ulrich Bayırlı/Kammer, 2015/08/30
- Re: Making apostrophe, backtick, etc. hygienic?, Panicz Maciej Godek, 2015/08/31
- Re: Making apostrophe, backtick, etc. hygienic?, Taylan Ulrich Bayırlı/Kammer, 2015/08/31