On 2019-12-03 08:04, yary wrote:
>Seems to me there is a bug here that
>
> rakudo-star-2019.03-x86_64 (JIT).msi
>
>is trying to interpret things inside single quotes.
If you can post a file that does that, I'll eat my hat!
here's a little recap of the basic quoting, which does exactly the same
in recent perl6 and decade-plus-old perl 5.6-ish
bash-3.2$ /cat perl-quotes/
my $name = 'mud';
print 'single quote \\ \" \' \[\] \n single name is $name', "\n";
print "double quote \\ \" \' \[\] \n double name is $name", "\n";
print q[q bracket \\ \" \' \[\] \n q bracket name is $name], "\n";
print qq[qq bracket \\ \" \' \[\] \n qq bracket name is $name],"\n";
# Can use quote instead of brackets- but most folks don't
print q"q double \\ \" \' \[\] \n q double name is $name", "\n";
bash-3.2$ /perl perl-quotes ; # Classic perl/
single quote \ \" ' \[\] \n single name is $name
double quote \ " ' []
double name is mud
q bracket \ \" \' [] \n q bracket name is $name
qq bracket \ " ' []
qq bracket name is mud
q double \ " \' \[\] \n q double name is $name
bash-3.2$ /perl6 perl-quotes ; # Raku/
single quote \ \" ' \[\] \n single name is $name
double quote \ " ' []
double name is mud
q bracket \ \" \' [] \n q bracket name is $name
qq bracket \ " ' []
qq bracket name is mud
q double \ " \' \[\] \n q double name is $name
Inside 'single quotes' or q[q string] backslash only has special meaning
, when escaping the string delimiter - note that ' \' ' evaluates to a
single quote without the backslash, but q[ \' ] keeps the backslash.
Variables only interpolated in the "double quote" qq[qq string] forms.
The big Q[string] or Q'string' that Raku has is an extension of those q,
qq forms. It doesn't have any escapes at all. I'm not posting an example
because I have to get back to work, feel free to experiment!
-y
Hi Yary,
$ perl6 -e "say '\'";
===SORRY!=== Error while compiling -e
Unable to parse expression in single quotes; couldn't find final "'"
(corresponding starter was at line 1)
at -e:1
------> say '\'⏏<EOL>
expecting any of:
argument list
single quotes
term
https://docs.raku.org/language/quoting#index-entry-quote_q-quote_'_'-Escaping:_q
"The backslash itself can be escaped, too, as in the
third example above. *The usual form is '…'* or q
followed by a delimiter, but it's also available
as an adverb on Q, as in the fifth and last example above.
$ p6 "say '\'"; is not following the *"The usual form is '…'"* in the
manual. EVERYTHING inside single quotes is suppose to be literal.
NOTHING is to be interpreted.
Would you like salt and pepper with your hat?
And if I am wrong, how does hat taste? Typically
with me, it is egg all over my face.
Thank you for the help!
-T
What??? Me read the manual? For beginners, the manual
really stinks, but I do consult it a lot. Sometimes
they will slip an example in that gets past the
IEEE-eese.
