Re: Better string constants

I'm +1 on """ ... """

But I'm +10 on being able to improve your life today. :)

 - Bruce



On Thu, Feb 28, 2013 at 7:47 PM, Carl Gay <[email protected]> wrote:

> okay, that's fine with me as long as r-parser goes in common-dylan.  We
> still need """ though.
>
>
> On Wed, Feb 27, 2013 at 10:58 PM, Bruce Mitchener <
> [email protected]> wrote:
>
>> It isn't a proposal that needs implementing. It works right now in every
>> release since Open Dylan was open sourced. Go try it.
>>
>>  - Bruce
>>
>>
>>
>> On Thu, Feb 28, 2013 at 10:54 AM, Carl Gay <[email protected]> wrote:
>>
>>> Even if we implemented your proposal for parsers, I still think we need
>>> better string literals.  At least """, but we could conceivably implement
>>> #r as parse-r.  :-)
>>>
>>>
>>> On Wed, Feb 27, 2013 at 10:00 PM, Bruce Mitchener <
>>> [email protected]> wrote:
>>>
>>>> define constant coil-parser = parse-coil;
>>>>
>>>> let c = #coil:[
>>>>
>>>>   A: {
>>>>     a: 'a'
>>>>     b: 'b'
>>>>     c: 'c'
>>>>   }
>>>> ];
>>>>
>>>> Suspect that works right now in OpenDylan 2012.1.
>>>>
>>>>  - Bruce
>>>>
>>>>
>>>>
>>>> On Thu, Feb 28, 2013 at 9:55 AM, Carl Gay <[email protected]> wrote:
>>>>
>>>>> I really want better string constant syntax in Dylan.  Doing this sort
>>>>> of thing...
>>>>>
>>>>>   parse-coil("A: {\n"
>>>>>              "    a: 'a'\n"
>>>>>              "    b: 'b'\n"
>>>>>              "    c: 'c'\n"
>>>>>              "}\n"
>>>>>              ...
>>>>> or
>>>>>   "\"5\""
>>>>>
>>>>> is really tedious and error prone.  (Both of the above are from a test
>>>>> suite.)
>>>>>
>>>>> We need two things:
>>>>>   (1) raw string literals
>>>>>   (2) multi-line strings
>>>>>
>>>>>  Briefly, my suggestions are:
>>>>> * Use """ for multiline backslash-interpreted strings.
>>>>> * Use ` (backquote) for one-line raw strings.
>>>>> * Use ``` for multi-line raw strings.
>>>>>
>>>>> `"5"` == "\"5\""
>>>>> `\d+\.` == "\\d+\\."
>>>>> ```A: {
>>>>>   a: 'a'
>>>>>   b: 'b'
>>>>>   c: 'c'
>>>>> }``` == the string near the top of this message.
>>>>>
>>>>> While I think it may be possible to use `...` for multi-line raw
>>>>> strings (as Go does) it bothers me that there's no way to embed a
>>>>> backquote, and also I like having the symmetry of "..." / """...""" and
>>>>> `...` / ```...```.
>>>>>
>>>>> Another possibility I like is #r"..." and #r"""...""" for raw strings.
>>>>>
>>>>> Thoughts/opinions?
>>>>>
>>>>>
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>>>>>
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