Multiline string literals
Ruslan Shevchenko
ruslan at shevchenko.kiev.ua
Sat Aug 6 22:44:36 PDT 2011
On Sun, Aug 7, 2011 at 1:16 AM, Peter Reilly
<peter.kitt.reilly at gmail.com> wrote:
> Thanks for the update!
> my google powers are pretty poor ;-)
>
> I do not agree that """ is IDE unfriendly, at
> least in the sense that is is supported by
> the three main java ides (for groovy), and in theory any editor
> that supports python.
>
It was the point from people from NetBeans team, after implementing
groovy support.
...... here-s explanation from Per Bothner:
http://mail.openjdk.java.net/pipermail/coin-dev/2009-March/001220.html
> Back in 2006 (yicks, is it that long ago), I hacked
> the javac compiler to add support for """ multiline support,
> it was ridiculously easy - see
> http://peter-reilly.blogspot.com/2006/11/multiline-strings-in-java-part-2.html
>
Yes, this link was in references section of proposal ;)
> Peter
>
> On Sat, Aug 6, 2011 at 9:30 PM, Ruslan Shevchenko
> <ruslan at shevchenko.kiev.ua> wrote:
>> 1. Last submission: 1.4 for multiine string literals is
>> http://mail.openjdk.java.net/pipermail/coin-dev/2009-March/000747.html
>> which in many aspects differ from first version.
>>
>> Also, I maintain 'post-morten' final version:
>> https://docs.google.com/Doc?docid=0AX56ZsgNVurJZGhodmdncjhfMjFncjVzNGZoZw
>> which can be used as starting point, if Oracle decide to receive
>> proposals about language direction from external world with reopening
>> or creation of some analog of project coin. [my estimation for
>> probability of such case is not very hight.]
>>
>> 2. In general, this proposal describe multiline strings as they
>> implemented in scala and groovy now. One problem with this: """ are
>> IDE-unfriendly: complexity of implementing mulitline string support
>> for groovy in netbeans shows this.
>>
>> So, now I think that """" symbols in proposal is better change to
>> pair of "( )" (and '( )' for row string literals), simular
>> to brackets for multiline string literals in C++0x
>> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm
>>
>> Regards !
>>
>> On Sat, Aug 6, 2011 at 6:12 PM, Per Bothner <per at bothner.com> wrote:
>>> On 08/06/2011 03:41 AM, Peter Reilly wrote:
>>>> Now that jdk7 is released and there will shortly be a process for
>>>> asking for new small features in jdk8, I would like to ask that
>>>> support for multiline string literals be considered.
>>>>
>>>> This is a long standing request and a specific proposal is contained in:
>>>>
>>>> http://mail.openjdk.java.net/pipermail/coin-dev/2009-March/000087.html
>>>
>>> I think it would be a mistake for multiline string literals to have
>>> the ending delimiter be the same as the starting delimiter. It seems
>>> lie it would make things more difficult for IDEs. Using """ also seems
>>> prone to syntax errors with possibly-confusing error messages. And it makes
>>> it harder to scan the text (visually or with tools) for matching delimiters.
>>>
>>> I also think this is a questionable idea:
>>>
>>> String platformDepended="""q
>>> """;
>>> is 'q\n' if compiled on Unix and 'q\n\r' if compiled on Windows.
>>>
>>> This make the meaning of a program depend on which platform
>>> it is compiled on. Probably not something we want. You could
>>> change it to depend on the program it is *run* on, by defining it
>>> in terms of line.separator - that would make more sense.
>>> --
>>> --Per Bothner
>>> per at bothner.com http://per.bothner.com/
>>>
>>>
>>
>>
>
>
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