On Wednesday, 4 May 2016 at 05:45:39 UTC, ag0aep6g wrote:
On 04.05.2016 07:27, tsbockman wrote:
Without any redundancy in the syntax, minor corruption of the
code could
easily result in a program that still "works" - that is,
compiles and
runs without producing an error message - but whose behaviour
has subtly
changed. With redundant syntax, on the other hand, the
compiler is more
likely to detect and pinpoint the problem immediately.
D doesn't have that kind of redundancy either here.
Yes it does.
For the compiler to catch errors, it would have to mind both
punctuation and whitespace.
No it doesn't.
But whitespace is purely cosmetic in D. Programmers might be
alarmed when they see a mismatch, but the compiler doesn't care.
This is true, but D's grammar still has some redundancy in it,
even when whitespace is collapsed.
In D, if a single curly brace goes missing, the braces will no
longer balance and the lexer will complain. In Python, if a
single tab goes missing, the result may well be a lexically and
syntactically valid - but buggy - program.
