Re: Better string constants

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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