Greetings.

Imagine this code,

char[] s = "ABCabc";
foreach (char c; s)
{
  // how do I convert c to something an Unicode code? ie. \u9999.

}

thanks.

On Tuesday, 14 October 2014 at 19:47:00 UTC, jicman wrote:
>
> Greetings.
>
> Imagine this code,
>
> char[] s = "ABCabc";
> foreach (char c; s)
> {
>   // how do I convert c to something an Unicode code? ie. \u9999.
>
> }

I'd look at the JSON string encoder.

On Tue, 14 Oct 2014 19:46:57 +0000
jicman via Digitalmars-d-learn <digitalmars-d-learn@puremagic.com>
wrote:

> char[] s = "ABCabc";
> foreach (char c; s)
> {
>    // how do I convert c to something an Unicode code? ie. \u9999.
> 
> }
  string res;
  foreach (dchar ch; s) res ~= "\\u%04X".format(ch);
  // here we have the result in res

note "dchar" instead of "char". with "dchar" foreach() does utf-8
decoding (as 's' is in utf-8).

On Tuesday, 14 October 2014 at 19:49:16 UTC, Sean Kelly wrote:
> On Tuesday, 14 October 2014 at 19:47:00 UTC, jicman wrote:
>>
>> Greetings.
>>
>> Imagine this code,
>>
>> char[] s = "ABCabc";
>> foreach (char c; s)
>> {
>>  // how do I convert c to something an Unicode code? ie. \u9999.
>>
>> }
>
> I'd look at the JSON string encoder.

JSON?  What does JSON has to do with my basic D? :-) No thanks. :-)

On Tuesday, 14 October 2014 at 20:03:37 UTC, jicman wrote:
> On Tuesday, 14 October 2014 at 19:49:16 UTC, Sean Kelly wrote:
>> On Tuesday, 14 October 2014 at 19:47:00 UTC, jicman wrote:
>>>
>>> Greetings.
>>>
>>> Imagine this code,
>>>
>>> char[] s = "ABCabc";
>>> foreach (char c; s)
>>> {
>>> // how do I convert c to something an Unicode code? ie. \u9999.
>>>
>>> }
>>
>> I'd look at the JSON string encoder.
>
> JSON?  What does JSON has to do with my basic D? :-) No thanks. :-)

Sean's saying that the JSON encoder does the same thing so you can look there for how to do it.

https://github.com/D-Programming-Language/phobos/blob/master/std/json.d#L579

On Tuesday, 14 October 2014 at 20:05:07 UTC, Brad Anderson wrote:
> https://github.com/D-Programming-Language/phobos/blob/master/std/json.d#L579

Oops. Linked the the parser section. I actually don't see any unicode escape encoder in here. Perhaps he meant the upcoming JSON module.

On Tuesday, 14 October 2014 at 20:08:03 UTC, Brad Anderson wrote:
> On Tuesday, 14 October 2014 at 20:05:07 UTC, Brad Anderson wrote:
>> https://github.com/D-Programming-Language/phobos/blob/master/std/json.d#L579
>
> Oops. Linked the the parser section. I actually don't see any unicode escape encoder in here. Perhaps he meant the upcoming JSON module.

Here we go.

https://github.com/s-ludwig/std_data_json/blob/4ecb90626055269f4897902404741f1173fb5e8e/source/stdx/data/json/generator.d#L451

Sönke's is pretty sophisticated. You could probably just use the non-surrogate supporting simple branch.

On Tuesday, 14 October 2014 at 19:56:29 UTC, ketmar via Digitalmars-d-learn wrote:
> On Tue, 14 Oct 2014 19:46:57 +0000
> jicman via Digitalmars-d-learn <digitalmars-d-learn@puremagic.com>
> wrote:
>
>> char[] s = "ABCabc";
>> foreach (char c; s)
>> {
>>    // how do I convert c to something an Unicode code? ie. \u9999.
>> 
>> }
>   string res;
>   foreach (dchar ch; s) res ~= "\\u%04X".format(ch);
>   // here we have the result in res
>
> note "dchar" instead of "char". with "dchar" foreach() does utf-8
> decoding (as 's' is in utf-8).

Thanks.  This is a missing function in std.uni or std.string.

josé

On Tuesday, 14 October 2014 at 20:13:17 UTC, Brad Anderson wrote:
> On Tuesday, 14 October 2014 at 20:08:03 UTC, Brad Anderson wrote:
>> On Tuesday, 14 October 2014 at 20:05:07 UTC, Brad Anderson wrote:
>>> https://github.com/D-Programming-Language/phobos/blob/master/std/json.d#L579
>>
>> Oops. Linked the the parser section. I actually don't see any unicode escape encoder in here. Perhaps he meant the upcoming JSON module.
>
> Here we go.
>
> https://github.com/s-ludwig/std_data_json/blob/4ecb90626055269f4897902404741f1173fb5e8e/source/stdx/data/json/generator.d#L451
>
> Sönke's is pretty sophisticated. You could probably just use the non-surrogate supporting simple branch.

thanks.  the problem is that I am still in D1. ;-)  over 300K lines of code and growing...

On 10/14/2014 01:18 PM, jicman wrote:

> Thanks.  This is a missing function in std.uni or std.string.
>
> josé

I don't know D1 but there is std.utf.decode:

  http://dlang.org/phobos/std_utf.html#decode

Ali