I wrote two regexp:

--------------------
auto inlineCodeBlock = regex("`(.*?)`"); // -->  `(.*?)`
auto bigCodeBlock = regex("/`{3}[\\s\\S]*?`{3}/g"); // -->  `{3}[\s\S]*?`{3}
--------------------
First for for selection inline code block. Second for multi-line:
--------------------
#Header
my header text

##SubHeader
my sub header text `foo inline code`

```
void foo()
{
   writeln("ppp");
}
```

###Sub3Header
my sub 3 text `bar inline code`

#Header2
my header2 text
--------------------

It's work fine in online editor https://regex101.com/r/EC5WRu/1 (sic! \\s\\S double escaped in D code).

But after compilation of code:

auto x = content.matchFirst(bigCodeBlock);
writeln(x);


print:
[]
[]

It's seems that D regexp work in another way. How can I test them?

On 10/03/2017 3:50 AM, Suliman wrote:
> I wrote two regexp:
>
> --------------------
> auto inlineCodeBlock = regex("`(.*?)`"); // -->  `(.*?)`
> auto bigCodeBlock = regex("/`{3}[\\s\\S]*?`{3}/g"); // -->
> `{3}[\s\S]*?`{3}
> --------------------
> First for for selection inline code block. Second for multi-line:
> --------------------
> #Header
> my header text
>
> ##SubHeader
> my sub header text `foo inline code`
>
> ```
> void foo()
> {
>    writeln("ppp");
> }
> ```
>
> ###Sub3Header
> my sub 3 text `bar inline code`
>
> #Header2
> my header2 text
> --------------------
>
> It's work fine in online editor https://regex101.com/r/EC5WRu/1 (sic!
> \\s\\S double escaped in D code).
>
> But after compilation of code:
>
> auto x = content.matchFirst(bigCodeBlock);
> writeln(x);
>
>
> print:
> []
> []
>
> It's seems that D regexp work in another way. How can I test them?

I would use dpaste and write a quick script but here is where I think your problem is:

regex("/.*/g")

It should be:

regex(".*", "g")

As per[0].

[0] http://dlang.org/phobos/std_regex.html#.regex

> I would use dpaste and write a quick script but here is where I think your problem is:
>
> regex("/.*/g")
>
> It should be:
>
> regex(".*", "g")
>
> As per[0].
>
> [0] http://dlang.org/phobos/std_regex.html#.regex

Sorry, but what regexp are you talking? There is nothing like: `regex("/.*/g")` in my code...

On 10/03/2017 4:17 AM, Suliman wrote:
>> I would use dpaste and write a quick script but here is where I think
>> your problem is:
>>
>> regex("/.*/g")
>>
>> It should be:
>>
>> regex(".*", "g")
>>
>> As per[0].
>>
>> [0] http://dlang.org/phobos/std_regex.html#.regex
>
> Sorry, but what regexp are you talking? There is nothing like:
> `regex("/.*/g")` in my code...
>

Yes there was:

auto bigCodeBlock = regex("/`{3}[\\s\\S]*?`{3}/g");

On Thursday, 9 March 2017 at 15:22:00 UTC, rikki cattermole wrote:
> On 10/03/2017 4:17 AM, Suliman wrote:
>>> I would use dpaste and write a quick script but here is where I think
>>> your problem is:
>>>
>>> regex("/.*/g")
>>>
>>> It should be:
>>>
>>> regex(".*", "g")
>>>
>>> As per[0].
>>>
>>> [0] http://dlang.org/phobos/std_regex.html#.regex
>>
>> Sorry, but what regexp are you talking? There is nothing like:
>> `regex("/.*/g")` in my code...
>>
>
> Yes there was:
>
> auto bigCodeBlock = regex("/`{3}[\\s\\S]*?`{3}/g");

I still can't get it work in real code :(

Adding "r" helped:

auto bigCodeBlock = regex(r"`{3}[\s\S]*?`{3}");

But now output is:
[["```\r\nvoid foo()\r\n{\r\n\twriteln(\"ppp\");\r\n}\r\n```"]]

But I do not \r\n\ symbols...

On Thursday, 9 March 2017 at 16:14:28 UTC, Suliman wrote:
> But now output is:
> [["```\r\nvoid foo()\r\n{\r\n\twriteln(\"ppp\");\r\n}\r\n```"]]
>
> But I do not \r\n\ symbols...

That's just the writeln array formatter. The matchFirst function returns an array of hits (that allows captures, btw you might need to use \( instead of ( to get the capture, god i hate regex) so writeln tries to print the whole array and that's how it does embedded newlines.

So you have the correct result, just written strangely.

On 10/03/2017 5:14 AM, Suliman wrote:
> Adding "r" helped:
>
> auto bigCodeBlock = regex(r"`{3}[\s\S]*?`{3}");
>
> But now output is:
> [["```\r\nvoid foo()\r\n{\r\n\twriteln(\"ppp\");\r\n}\r\n```"]]
>
> But I do not \r\n\ symbols...

\r\n is Windows new line characters.

On Thursday, 9 March 2017 at 16:23:23 UTC, Adam D. Ruppe wrote:
> On Thursday, 9 March 2017 at 16:14:28 UTC, Suliman wrote:
>> But now output is:
>> [["```\r\nvoid foo()\r\n{\r\n\twriteln(\"ppp\");\r\n}\r\n```"]]
>>
>> But I do not \r\n\ symbols...
>
> That's just the writeln array formatter. The matchFirst function returns an array of hits (that allows captures, btw you might need to use \( instead of ( to get the capture, god i hate regex) so writeln tries to print the whole array and that's how it does embedded newlines.
>
> So you have the correct result, just written strangely.

How should I write to file result without \r\n\ symbols?

auto x = content.matchFirst(bigCodeBlock);

File f = File("foo.txt", "w");
f.write(x);

foo.txt:
["```\r\nvoid foo()\r\n{\r\n\twriteln(\"ppp\");\r\n}\r\n```"]

On Thursday, 9 March 2017 at 16:40:13 UTC, Suliman wrote:
> How should I write to file result without \r\n\ symbols?
>
> auto x = content.matchFirst(bigCodeBlock);
>
> File f = File("foo.txt", "w");
> f.write(x);

Just

f.write(x[0]);


to write out the whole hit instead of the collection of references.