• mw (15/15) Sep 13 2020 I'm referring to this:
• =?UTF-8?Q?Ali_=c3=87ehreli?= (18/18) Sep 13 2020 Yes, accepting that trailing comma is very useful in many contexts.
• Dominikus Dittes Scherkl (3/8) Sep 13 2020 And it would still not be sufficient, as e.g. German would need
• DlangUser38 (28/44) Sep 14 2020 yeah it's okish. Also good for git diff, for example when you add

mw <mingwu gmail.com> writes:

I'm referring to this:

https://github.com/mingwugmail/talibd/blob/master/source/talibd.d#L109

  int lookback = 
TA_MACD_Lookback(optInFastPeriod,optInSlowPeriod,optInSignalPeriod,);


D compiler accept (but ignore) the last comma "," is a life saver 
for generated code.

Otherwise, one have to find new ways to remove it which is a 
nuisance.


(The generating C macro in this case, are defined as:

#define SPLIT_THEN_TAKE_VAR(X)     SPLIT(TAKE_VAR,   X),


FUNC_INS)); __NL__\

https://github.com/mingwugmail/talibd/blob/master/source/talibd.h#L121
https://github.com/mingwugmail/talibd/blob/master/source/talibd.h#L60
)

=?UTF-8?Q?Ali_=c3=87ehreli?= <acehreli yahoo.com> writes:

Yes, accepting that trailing comma is very useful in many contexts.

Related, I use std.format's %( and %) specifiers, which automatically 
remove the extra delimiters at the end:

import std.stdio;

void main() {
   writefln!"%(%s, %)"([1, 2, 3]);
}

Prints

1, 2, 3

When we want, we can use %| to mean "keep the delimiters up to this place":

   writefln!"%(%s,%| %)"([1, 2, 3]);

Now the comma is printed as well but not the following space:

1, 2, 3,

I wish it had an additional feature where we could say "use this 
delimiter before the last one" so we could inject e.g. and "and":

1, 2, and 3

As far as I know, it doesn't exist.

Ali

Dominikus Dittes Scherkl <dominikus scherkl.de> writes:

On Sunday, 13 September 2020 at 19:28:05 UTC, Ali Çehreli wrote:
 I wish it had an additional feature where we could say "use 
 this delimiter before the last one" so we could inject e.g. and 
 "and":

 1, 2, and 3

 As far as I know, it doesn't exist.

And it would still not be sufficient, as e.g. German would need 
to remove also the comma before the and: "1, 2, 3 und 4"

DlangUser38 <DlangUser nowhere.ch> writes:

On Sunday, 13 September 2020 at 18:57:14 UTC, mw wrote:
 I'm referring to this:

 https://github.com/mingwugmail/talibd/blob/master/source/talibd.d#L109

  int lookback = 
 TA_MACD_Lookback(optInFastPeriod,optInSlowPeriod,optInSignalPeriod,);


 D compiler accept (but ignore) the last comma "," is a life 
 saver for generated code.

 Otherwise, one have to find new ways to remove it which is a 
 nuisance.


 (The generating C macro in this case, are defined as:

 #define SPLIT_THEN_TAKE_VAR(X)     SPLIT(TAKE_VAR,   X),

   int lookback = 

 __NL__\

 https://github.com/mingwugmail/talibd/blob/master/source/talibd.h#L121
 https://github.com/mingwugmail/talibd/blob/master/source/talibd.h#L60
 )

yeah it's okish. Also good for git diff, for example when you add 
a member to an enum then you only have one line modified instead 
of two.

---
enum Foo
{
    f1
}

enum Foo
{
-   f1
+   f1,
+   f2
}
---

now in D you can just have

---
enum Foo
{
    f1,
}

enum Foo
{
     f1,
+   f2,
}
---