Re: How do I do literal quotes in a regex?
On 2019-12-09 00:46, Fernando Santagata wrote: On Mon, Dec 9, 2019 at 9:38 AM Fernando Santagata mailto:nando.santag...@gmail.com>> wrote: It can be used this way: $ raku -e'say „Hello!“' Hello! But it must be used with that closing quote '“' (U+201C); it cannot be used paired with itself: There's another quotation mark that can be used with '„', it's '”' (U+201D). I know, it's difficult to see the difference :-) $ raku -e'say „Hello!„' ===SORRY!=== Error while compiling -e Unable to parse expression in low curly double quotes; couldn't find final <[”“]> (corresponding starter was at line 1) at -e:1 --> say „Hello!„⏏ expecting any of: argument list low curly double quotes term Your take: for maintainability, is it better to use these unicodes or to just stick with escaping things? I don't think there's a maintainability issue with Unicode operators, because everyone has a plain ASCII counterpart; besides, their meaning is quite apparent or in some cases even better than their ASCII counterpart: consider the set union operator ∪ vs (|), the first being the universally accepted mathematical symbol, while I find the second difficult to interpret and remember. -- Fernando Santagata -- Fernando Santagata Thank you! I already have a keeper going with useful unicodes. -T
Re: How do I do literal quotes in a regex?
On Mon, Dec 9, 2019 at 03:54 Fernando Santagata wrote: > On Mon, Dec 9, 2019 at 9:38 AM Fernando Santagata < > nando.santag...@gmail.com> wrote: > >> It can be used this way: >> >> $ raku -e'say „Hello!“' >> Hello! >> But it must be used with that closing quote '“' (U+201C); it cannot be >> used paired with itself: >> > > There's another quotation mark that can be used with '„', it's '”' > (U+201D). I know, it's difficult to see the difference :-) > It’s easier to see in serif typefaces. Traditionally, pairing „Hello!“ (with U+201C) is how German used it and „Hello!” (with U+201D) is how Dutch used it. But those conventions aren’t as rigidly set as in some other languages. In any case, it makes sense to allow either left- or right-closing double quotation mark in closing.
Re: How do I do literal quotes in a regex?
On Mon, Dec 9, 2019 at 9:38 AM Fernando Santagata wrote: > It can be used this way: > > $ raku -e'say „Hello!“' > Hello! > But it must be used with that closing quote '“' (U+201C); it cannot be > used paired with itself: > There's another quotation mark that can be used with '„', it's '”' (U+201D). I know, it's difficult to see the difference :-) $ raku -e'say „Hello!„' > ===SORRY!=== Error while compiling -e > Unable to parse expression in low curly double quotes; couldn't find final > <[”“]> (corresponding starter was at line 1) > at -e:1 > --> say „Hello!„⏏ > expecting any of: > argument list > low curly double quotes > term > > Your take: for maintainability, is it better to use >> these unicodes or to just stick with escaping things? >> > > I don't think there's a maintainability issue with Unicode operators, > because everyone has a plain ASCII counterpart; besides, their meaning is > quite apparent or in some cases even better than their ASCII counterpart: > consider the set union operator ∪ vs (|), the first being the universally > accepted mathematical symbol, while I find the second difficult to > interpret and remember. > > -- > Fernando Santagata > -- Fernando Santagata
Re: How do I do literal quotes in a regex?
On Mon, Dec 9, 2019 at 1:27 AM ToddAndMargo via perl6-users < perl6-us...@perl.org> wrote: > What is the unicode for the subscript double quote „ ? > That's U+201E and can it be used together with the regular > quote the same as ｢｣ ? > It can be used this way: $ raku -e'say „Hello!“' Hello! But it must be used with that closing quote '“' (U+201C); it cannot be used paired with itself: $ raku -e'say „Hello!„' ===SORRY!=== Error while compiling -e Unable to parse expression in low curly double quotes; couldn't find final <[”“]> (corresponding starter was at line 1) at -e:1 --> say „Hello!„⏏ expecting any of: argument list low curly double quotes term Your take: for maintainability, is it better to use > these unicodes or to just stick with escaping things? > I don't think there's a maintainability issue with Unicode operators, because everyone has a plain ASCII counterpart; besides, their meaning is quite apparent or in some cases even better than their ASCII counterpart: consider the set union operator ∪ vs (|), the first being the universally accepted mathematical symbol, while I find the second difficult to interpret and remember. -- Fernando Santagata
Re: How do I do literal quotes in a regex?
On 2019-12-08 19:34, Brad Gilbert wrote: I like to use them, but I am not you. Hi Brad, I am going to create a keeper and give it a shot! It is not like I don't have four or five of them open when I am programming :-) -T
Re: How do I do literal quotes in a regex?
I like to use them, but I am not you. On Sun, Dec 8, 2019 at 8:19 PM ToddAndMargo via perl6-users < perl6-us...@perl.org> wrote: > On 2019-12-08 18:04, Brad Gilbert wrote: > > I do not quite understand the question. > > > > I told you how to directly enter unicode by remembering the codepoint. > > > > It's still the same characters. > > > > I would definitely recommend setting up, and getting used to Compose > keys. > > > > I use them all the time for things like « » ‘ ’ “ ” ¹²³⁴⁵⁶⁷⁸⁹⁰¯⁺≠ > > I was not asking if they were any good or not. > > I was asking if you thought someone like me, who > would have to look the them up every time, should > just stick with the what is on the keyboard. > > At times I have just had a list of them I could just > copy and paste. > > Be nice if Geany would have an insert character function. > (I use Geany as it is ssh X11 friendly.) >
Re: How do I do literal quotes in a regex?
On 2019-12-08 18:04, Brad Gilbert wrote: I do not quite understand the question. I told you how to directly enter unicode by remembering the codepoint. It's still the same characters. I would definitely recommend setting up, and getting used to Compose keys. I use them all the time for things like « » ‘ ’ “ ” ¹²³⁴⁵⁶⁷⁸⁹⁰¯⁺≠ I was not asking if they were any good or not. I was asking if you thought someone like me, who would have to look the them up every time, should just stick with the what is on the keyboard. At times I have just had a list of them I could just copy and paste. Be nice if Geany would have an insert character function. (I use Geany as it is ssh X11 friendly.)
Re: How do I do literal quotes in a regex?
I do not quite understand the question. I told you how to directly enter unicode by remembering the codepoint. It's still the same characters. I would definitely recommend setting up, and getting used to Compose keys. I use them all the time for things like « » ‘ ’ “ ” ¹²³⁴⁵⁶⁷⁸⁹⁰¯⁺≠ On Sun, Dec 8, 2019 at 6:46 PM ToddAndMargo via perl6-users < perl6-us...@perl.org> wrote: > On 2019-12-08 06:22, Brad Gilbert wrote: > > Personally though I just use ｢Ctrl+Shift+u f f 6 2 Space｣ and > > ｢Ctrl+Shift+u f f 6 3 Space｣ > > > > Hi Brad, > > Your technical opinion: is it better for maintainability > to stick with escape sequences or to use the unicodes? > > I ask as I will never remember them. I can only program > on occasion as I am a jack of all trades. > > On the other hand, I currently have 190 keeper files > (no fooling, I do not liek Raku's documentation) like > the one I copied in these parts on the hashes. 191 > on unicodes would not hurt. And I do have to reference > the other 190 a lot, so it is not like it would be any > extra work. Although, I an type and when my mind gets > racing and my fingers can keep up, I really don't > like to be slowed down. > > -T >
Re: How do I do literal quotes in a regex?
On 2019-12-08 06:22, Brad Gilbert wrote: Personally though I just use ｢Ctrl+Shift+u f f 6 2 Space｣ and ｢Ctrl+Shift+u f f 6 3 Space｣ Hi Brad, Your technical opinion: is it better for maintainability to stick with escape sequences or to use the unicodes? I ask as I will never remember them. I can only program on occasion as I am a jack of all trades. On the other hand, I currently have 190 keeper files (no fooling, I do not liek Raku's documentation) like the one I copied in these parts on the hashes. 191 on unicodes would not hurt. And I do have to reference the other 190 a lot, so it is not like it would be any extra work. Although, I an type and when my mind gets racing and my fingers can keep up, I really don't like to be slowed down. -T
Re: How do I do literal quotes in a regex?
On 2019-12-08 08:46, Fernando Santagata wrote: You won't believe it :-) but Raku's wonderful documentation has a page on how to enter Unicode characters: https://docs.raku.org/language/unicode_entry Hi Fernando, Oh they sure do go to town on that one! That page is nicely done. What is the unicode for the subscript double quote „ ? and can it be used together with the regular quote the same as ｢｣ ? Thank you! -T Your take: for maintainability, is it better to use these unicodes or to just stick with escaping things?
Re: How do I do literal quotes in a regex?
On 2019-12-08 06:22, Brad Gilbert wrote: Personally though I just use ｢Ctrl+Shift+u f f 6 2 Space｣ and ｢Ctrl+Shift+u f f 6 3 Space｣ So basically I just remember how to directly type in Unicode codepoints, and those the two codepoints. Taught me something new. Thank you!
Re: How do I do literal quotes in a regex?
You won't believe it :-) but Raku's wonderful documentation has a page on
how to enter Unicode characters:
https://docs.raku.org/language/unicode_entry
That page also links to a GitHub project which offers a .XCompose ready to
use.
I started from that and added some faster and easier (for me) to remember
key combinations, such as for example:
: "｢" UFF62
: "｣" UFF63
which use the left "Win" key as a dead key, followed by 'l' or 'L' to
produce the Japanese quoting characters.
On Sun, Dec 8, 2019 at 1:56 PM ToddAndMargo via perl6-users <
perl6-us...@perl.org> wrote:
> > On Sat, Dec 7, 2019 at 12:51 AM ToddAndMargo via perl6-users
> > mailto:perl6-us...@perl.org>> wrote:
> >
> > Hi All,
> >
> > Is there a `Q[]` that can be used in a regex?
> >
> > I am looking for how to get around
> >
> > my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ '' /x/; say $y
> > \:x::
> >
> > This does not work:
> > my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ Q[\\] /x/; say $y
> > \:\\::
> >
> > Nor does this:
> > my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ [\\] /x/; say $y
> > x:\\::
> >
> > Many thanks,
> > -T
>
> On 2019-12-07 07:02, Brad Gilbert wrote:
> > The shortcut spelling of Q[…] is to use ｢ and ｣ (U+FF62 and U+FF63)
> >
> > my $x = ｢\:\\::｣; ( my $y = $x ) ~~ s/ ｢\\｣ /x/; say $y
> > \:\\::
> >
> > The case could be made that \Q[\\] should work as well. (It would need
> > to be added).
> > (Along with \q[…] and \qq[…])
> >
> > Note that \Q[…] doesn't work in string literals currently either. While
> > \q[…] and \qq[…] do.
> >
> > > "\q[\n]\n"
> > \n
> >
> > > '\n\qq[\n]'
> > \n
> >
> > Note that single and double quotes also work in regexs.
> >
> > The three of them ('…' "…" ｢…｣) have a few jobs.
> >
> > 1. They escape spaces and other non-alphanumerics.
> >
> > > 'a b c' ~~ / 'a b c' /
> > Nil
> > > 'a b c A B C' ~~ / :i 'a b c' /
> > A B C
> >
> > > 'a b c' ~~ / 'a . c' /
> > Nil
> > > 'a . c' ~~ / 'a . c' /
> > a . c
> >
> > Note that the rules for the string literal still apply.
> >
> > > "abc\n" ~~ / 'abc\n' /
> > Nil
> > > "abc\n" ~~ / "abc\n" /
> > abc
> >
> > 2. They group characters as a single atom.
> > (Meaning they behave a bit like [] in a regex)
> >
> > > 'abccd' ~~ / 'abc'+ d /
> > Nil
> > > 'abccd' ~~ / [abc]+ d /
> > Nil
> >
> > > 'abccd' ~~ / abc+ d /
> > abccd
> >
> > > 'abccd abcABCabcd' ~~ / :i 'abc'+ d /
> > abcABCabcd
> > > 'abccd abcABCabcd' ~~ / :i [abc]+ d /
> > abcABCabcd
> >
> > Note that '…' in a regex behaves like '…' outside of one, as well as "…"
> > behaving like "…" and ｢…｣ behaving like ｢…｣
>
> Hi Brad,
>
>That was above and beyond! Thank you!
>
> my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ ｢\\｣ /x/; say $y
> \:x::
>
> What is the easiest way to get those weird brackets in Fedora31?
>
> -T
>
--
Fernando Santagata
Re: How do I do literal quotes in a regex?
I would recommend setting up a compose key.
But that is not enough because I don't think it has a binding for those two
characters.
So you would also have to modify the config to include them.
I think that ｢Compose [ [ ｣ and ｢Compose ] ] ｣ might be what I would set
them as.
Note that ｢‘｣ is ｢Compose < ' ｣ and ｢’｣ is ｢Compose > ' ｣ along with ｢“｣
and ｢”｣ being ｢Compose < " ｣ and ｢Compose > " ｣
Personally though I just use ｢Ctrl+Shift+u f f 6 2 Space｣ and ｢Ctrl+Shift+u
f f 6 3 Space｣
So basically I just remember how to directly type in Unicode codepoints,
and those the two codepoints.
On Sun, Dec 8, 2019 at 6:56 AM ToddAndMargo via perl6-users <
perl6-us...@perl.org> wrote:
> > On Sat, Dec 7, 2019 at 12:51 AM ToddAndMargo via perl6-users
> > mailto:perl6-us...@perl.org>> wrote:
> >
> > Hi All,
> >
> > Is there a `Q[]` that can be used in a regex?
> >
> > I am looking for how to get around
> >
> > my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ '' /x/; say $y
> > \:x::
> >
> > This does not work:
> > my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ Q[\\] /x/; say $y
> > \:\\::
> >
> > Nor does this:
> > my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ [\\] /x/; say $y
> > x:\\::
> >
> > Many thanks,
> > -T
>
> On 2019-12-07 07:02, Brad Gilbert wrote:
> > The shortcut spelling of Q[…] is to use ｢ and ｣ (U+FF62 and U+FF63)
> >
> > my $x = ｢\:\\::｣; ( my $y = $x ) ~~ s/ ｢\\｣ /x/; say $y
> > \:\\::
> >
> > The case could be made that \Q[\\] should work as well. (It would need
> > to be added).
> > (Along with \q[…] and \qq[…])
> >
> > Note that \Q[…] doesn't work in string literals currently either. While
> > \q[…] and \qq[…] do.
> >
> > > "\q[\n]\n"
> > \n
> >
> > > '\n\qq[\n]'
> > \n
> >
> > Note that single and double quotes also work in regexs.
> >
> > The three of them ('…' "…" ｢…｣) have a few jobs.
> >
> > 1. They escape spaces and other non-alphanumerics.
> >
> > > 'a b c' ~~ / 'a b c' /
> > Nil
> > > 'a b c A B C' ~~ / :i 'a b c' /
> > A B C
> >
> > > 'a b c' ~~ / 'a . c' /
> > Nil
> > > 'a . c' ~~ / 'a . c' /
> > a . c
> >
> > Note that the rules for the string literal still apply.
> >
> > > "abc\n" ~~ / 'abc\n' /
> > Nil
> > > "abc\n" ~~ / "abc\n" /
> > abc
> >
> > 2. They group characters as a single atom.
> > (Meaning they behave a bit like [] in a regex)
> >
> > > 'abccd' ~~ / 'abc'+ d /
> > Nil
> > > 'abccd' ~~ / [abc]+ d /
> > Nil
> >
> > > 'abccd' ~~ / abc+ d /
> > abccd
> >
> > > 'abccd abcABCabcd' ~~ / :i 'abc'+ d /
> > abcABCabcd
> > > 'abccd abcABCabcd' ~~ / :i [abc]+ d /
> > abcABCabcd
> >
> > Note that '…' in a regex behaves like '…' outside of one, as well as "…"
> > behaving like "…" and ｢…｣ behaving like ｢…｣
>
> Hi Brad,
>
>That was above and beyond! Thank you!
>
> my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ ｢\\｣ /x/; say $y
> \:x::
>
> What is the easiest way to get those weird brackets in Fedora31?
>
> -T
>
Re: How do I do literal quotes in a regex?
> On Sat, Dec 7, 2019 at 12:51 AM ToddAndMargo via perl6-users
> mailto:perl6-us...@perl.org>> wrote:
>
> Hi All,
>
> Is there a `Q[]` that can be used in a regex?
>
> I am looking for how to get around
>
> my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ '' /x/; say $y
> \:x::
>
> This does not work:
> my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ Q[\\] /x/; say $y
> \:\\::
>
> Nor does this:
> my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ [\\] /x/; say $y
> x:\\::
>
> Many thanks,
> -T
On 2019-12-07 07:02, Brad Gilbert wrote:
The shortcut spelling of Q[…] is to use ｢ and ｣ (U+FF62 and U+FF63)
my $x = ｢\:\\::｣; ( my $y = $x ) ~~ s/ ｢\\｣ /x/; say $y
\:\\::
The case could be made that \Q[\\] should work as well. (It would need
to be added).
(Along with \q[…] and \qq[…])
Note that \Q[…] doesn't work in string literals currently either. While
\q[…] and \qq[…] do.
> "\q[\n]\n"
\n
> '\n\qq[\n]'
\n
Note that single and double quotes also work in regexs.
The three of them ('…' "…" ｢…｣) have a few jobs.
1. They escape spaces and other non-alphanumerics.
> 'a b c' ~~ / 'a b c' /
Nil
> 'a b c A B C' ~~ / :i 'a b c' /
A B C
> 'a b c' ~~ / 'a . c' /
Nil
> 'a . c' ~~ / 'a . c' /
a . c
Note that the rules for the string literal still apply.
> "abc\n" ~~ / 'abc\n' /
Nil
> "abc\n" ~~ / "abc\n" /
abc
2. They group characters as a single atom.
(Meaning they behave a bit like [] in a regex)
> 'abccd' ~~ / 'abc'+ d /
Nil
> 'abccd' ~~ / [abc]+ d /
Nil
> 'abccd' ~~ / abc+ d /
abccd
> 'abccd abcABCabcd' ~~ / :i 'abc'+ d /
abcABCabcd
> 'abccd abcABCabcd' ~~ / :i [abc]+ d /
abcABCabcd
Note that '…' in a regex behaves like '…' outside of one, as well as "…"
behaving like "…" and ｢…｣ behaving like ｢…｣
Hi Brad,
That was above and beyond! Thank you!
my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ ｢\\｣ /x/; say $y
\:x::
What is the easiest way to get those weird brackets in Fedora31?
-T
Re: How do I do literal quotes in a regex?
The shortcut spelling of Q[…] is to use ｢ and ｣ (U+FF62 and U+FF63)
my $x = ｢\:\\::｣; ( my $y = $x ) ~~ s/ ｢\\｣ /x/; say $y
\:\\::
The case could be made that \Q[\\] should work as well. (It would need to
be added).
(Along with \q[…] and \qq[…])
Note that \Q[…] doesn't work in string literals currently either. While
\q[…] and \qq[…] do.
> "\q[\n]\n"
\n
> '\n\qq[\n]'
\n
Note that single and double quotes also work in regexs.
The three of them ('…' "…" ｢…｣) have a few jobs.
1. They escape spaces and other non-alphanumerics.
> 'a b c' ~~ / 'a b c' /
Nil
> 'a b c A B C' ~~ / :i 'a b c' /
A B C
> 'a b c' ~~ / 'a . c' /
Nil
> 'a . c' ~~ / 'a . c' /
a . c
Note that the rules for the string literal still apply.
> "abc\n" ~~ / 'abc\n' /
Nil
> "abc\n" ~~ / "abc\n" /
abc
2. They group characters as a single atom.
(Meaning they behave a bit like [] in a regex)
> 'abccd' ~~ / 'abc'+ d /
Nil
> 'abccd' ~~ / [abc]+ d /
Nil
> 'abccd' ~~ / abc+ d /
abccd
> 'abccd abcABCabcd' ~~ / :i 'abc'+ d /
abcABCabcd
> 'abccd abcABCabcd' ~~ / :i [abc]+ d /
abcABCabcd
Note that '…' in a regex behaves like '…' outside of one, as well as "…"
behaving like "…" and ｢…｣ behaving like ｢…｣
On Sat, Dec 7, 2019 at 12:51 AM ToddAndMargo via perl6-users <
perl6-us...@perl.org> wrote:
> Hi All,
>
> Is there a `Q[]` that can be used in a regex?
>
> I am looking for how to get around
>
> my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ '' /x/; say $y
> \:x::
>
> This does not work:
> my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ Q[\\] /x/; say $y
> \:\\::
>
> Nor does this:
> my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ [\\] /x/; say $y
> x:\\::
>
> Many thanks,
> -T
>
How do I do literal quotes in a regex?
Hi All, Is there a `Q[]` that can be used in a regex? I am looking for how to get around my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ '' /x/; say $y \:x:: This does not work: my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ Q[\\] /x/; say $y \:\\:: Nor does this: my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ [\\] /x/; say $y x:\\:: Many thanks, -T
