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digitalmars.D.learn - betterC CTFE nested switch

reply Abby <loniro7678 twit-mail.com> writes:
Hi there guys,
I was trying to generated code during compile time. Bassicly I'm 
creating a tokenizer and I would like to generated nested switch 
using betterC.

Basically convert something like this:

enum tokens =
[
     ['!', '='],
     ['>', '='],
     ['>'],
];

to:

switch(str[i])
{
     case '!':
         switch(str[i + 1])
         {
             case '=':
                 onToken(['!', '=']);
                 break;
             default: break;
         }
         break;
     case '>':
         switch(str[i + 1])
         {
             case '=':
                 onToken(['>', '=']);
                 break;
             default:
                 onToken(['>']);
                 break;
         }
         break;
     default: break;
}

but right now I'm stuck and I don't know how to achieve this. I 
was able to find out that:

1) Switches has to be labeled and the only way I know how to do 
so is to use string code and then mixing it. I was hoping for 
example to mixing only labels before switch and after continue 
and break but this does not seem to work :/

2) Format does not work in compile time using betterC (sprintf 
also does not work


Thank you very much for any kind if help
Kind regards Abby
Feb 17 2020
parent reply Stefan Koch <uplink.coder googlemail.com> writes:
On Monday, 17 February 2020 at 10:18:32 UTC, Abby wrote:

 Hi there guys,
 I was trying to generated code during compile time. Bassicly 
 I'm creating a tokenizer and I would like to generated nested 
 switch using betterC.

 [...]


I have a ctfe compatible string formatter, you should be to find 
it here
https://forum.dlang.org/post/hmyxvknbdqtlnxvqqnzq forum.dlang.org

I hope that helps,

Regards, Stefan
:
Feb 17 2020
parent reply Abby <loniro7678 twit-mail.com> writes:
On Monday, 17 February 2020 at 11:05:46 UTC, Stefan Koch wrote:

 On Monday, 17 February 2020 at 10:18:32 UTC, Abby wrote:

 Hi there guys,
 I was trying to generated code during compile time. Bassicly 
 I'm creating a tokenizer and I would like to generated nested 
 switch using betterC.

 [...]


 I have a ctfe compatible string formatter, you should be to 
 find it here
 https://forum.dlang.org/post/hmyxvknbdqtlnxvqqnzq forum.dlang.org

 I hope that helps,

 Regards, Stefan
 :


Hi Stefan, thank you very much for your reply but I could not 
find the source code or package name anywhere in that forum 
thread, I was only able to find this 
https://github.com/UplinkCoder/ctfeutils on github, but it's 
empty for me. Can you please help and point me to somewhere so I 
can try it out?

Thank you very much

Kind regards Abby
Feb 17 2020
parent reply Stefan Koch <uplink.coder googlemail.com> writes:
On Monday, 17 February 2020 at 11:51:03 UTC, Abby wrote:

 On Monday, 17 February 2020 at 11:05:46 UTC, Stefan Koch wrote:

 On Monday, 17 February 2020 at 10:18:32 UTC, Abby wrote:

 [...]


 I have a ctfe compatible string formatter, you should be to 
 find it here
 https://forum.dlang.org/post/hmyxvknbdqtlnxvqqnzq forum.dlang.org

 I hope that helps,

 Regards, Stefan
 :


 Hi Stefan, thank you very much for your reply but I could not 
 find the source code or package name anywhere in that forum 
 thread, I was only able to find this 
 https://github.com/UplinkCoder/ctfeutils on github, but it's 
 empty for me. Can you please help and point me to somewhere so 
 I can try it out?

 Thank you very much

 Kind regards Abby


Sorry I just realized I never published the code.
I am going to add it to ctfeutils.
Feb 17 2020
next sibling parent Abby <loniro7678 twit-mail.com> writes:
On Monday, 17 February 2020 at 19:02:50 UTC, Stefan Koch wrote:

 Sorry I just realized I never published the code.
 I am going to add it to ctfeutils.


Thank you very much
Feb 18 2020
prev sibling parent reply Abby <loniro7678 twit-mail.com> writes:
On Monday, 17 February 2020 at 19:02:50 UTC, Stefan Koch wrote:

 Sorry I just realized I never published the code.
 I am going to add it to ctfeutils.


Hi Stefan,
I'm sorry to bother you, I just wanted to kindly ask if you would 
upload the formatter to ctfeutils on github it would help me alot.

Thank you very much
Kind regards Abby
Feb 21 2020
parent Stefan Koch <uplink.coder googlemail.com> writes:
On Friday, 21 February 2020 at 09:03:26 UTC, Abby wrote:

 On Monday, 17 February 2020 at 19:02:50 UTC, Stefan Koch wrote:

 Sorry I just realized I never published the code.
 I am going to add it to ctfeutils.


 Hi Stefan,
 I'm sorry to bother you, I just wanted to kindly ask if you 
 would upload the formatter to ctfeutils on github it would help 
 me alot.

 Thank you very much
 Kind regards Abby


No problem I am a little busy lately.

In the meantime you can check if std.format : format would do the 
job.
Even though it will like be much slower than my CTFE optimized 
version.
Feb 21 2020