On 2/27/17, Eliot Miranda <eliot.miranda at gmail.com> wrote:

Hello Eliot

Thank you for your quick-hack how  an ES6 type template string
addition could look like.

Which setup do I need to have a look at it?

I used http://files.squeak.org/6.0alpha/Squeak6.0alpha-16963-32bit/
And got the error which is attached.

Best wishes

--Hannes

> Hi Hannes,
>
> On Mon, Feb 27, 2017 at 10:58 AM, H. Hirzel <hannes.hirzel at gmail.com>
> wrote:
>
>> On 2/27/17, DavidLeibs <david.leibs at gmail.com> wrote:
>> > I realize this is a few years old but I wanted to give an update on my
>> > quest
>> > for quasi-literals.  I did a complete quasi-literal framework for Java
>> when
>> > I moved over to Oracle Labs.  It used the annotation compiler + a few
>> > tweeks
>> > to the scanner and parser.  You could extend the name space of the
>> > quasi-literal and have inline SQL or APL.  All the parsing, validation,
>> and
>> > code rewriting happened at compile time. We proposed it to the Java
>> Product
>> > guys and got ignored to death.
>> >
>> > As to the characters I did backquote for simple quasi-literal Strings
>> > and
>> > used Oxford Brackets for the quasi-literals with a language namespace.
>> > <|
>> > ...|>.  Back quote can be hard to see but is nice for String
>> > substitute.
>> >
>> > At this point in time the language that does it most right is
>> > JavaScript.
>> > Thanks Mark Miller for all the hard work over the years!
>>
>> Thanks David for following up this discussion.
>>
>> I wonder if just going for JavaScript ES6 solution (back-ticks) would
>> be the most straightforward thing to do?
>>
>
>  I did a quick hack in Squeak but didn't have time to finish is.  I wrote
> some tests.  Complex cases worked, small tricky cases broke the scanner.
>
> MCHttpRepository
> location: 'http://source.squeak.org/inbox'
> user: ''
> password: ''
>
> Compiler.quasiliteral-eem.280
>
> [Derived from Compiler-nice.279, and renamed from
>  the bogusly named Compiler.quasiquote-eem.248]
>
> Add a quasi-literal form for "string interpolation", that allows
> convenient embedding of expressions within a format string,
> and provides a convenient way of embedding literal strings
> within an alternative literal string syntax whose string delimiter
> is different.
>
> e.g.
> `hello [#cruel] world!`
> evaluates to
> 'hello cruel world'.
>
> `S1[B1]...SN[BN]SN+1`
>
> is equivalent to
> { 'S1'. [B1] value. ... 'SN'. [BN] value. 'SN+1' } concatenateQuasiLiteral
> where concatenateQuasiLiteral sends asString to each
> element and answers the concatenation of those elements.
>
> however, single-statement blocks are inlined, so e.g. the
> above `hello [#cruel] world!` is compiled as
> { 'hello '. #cruel. ' world!' } concatenateQuasiLiteral
>
> See e.g. Tests.quasiliteral-eem.296 for tests and examples.
>
> Tests.quasiliteral-eem.296
>
> Renamed from the bogus quasiquote to quasiliteral.
> Added Balazs' errors as failing tests.
>
>
>> --Hannes
>>
>>
>> https://developer.mozilla.org/en/docs/Web/JavaScript/
>> Reference/Template_literals
>>
>> Syntax
>> ----------
>>
>> `string text`
>>
>> `string text line 1
>>  string text line 2`
>>
>> `string text ${expression} string text`
>>
>> tag `string text ${expression} string text`
>>
>>
>> Description
>> ----------------
>>
>> Template literals are enclosed by the back-tick (` `) (grave accent)
>> character instead of double or single quotes. Template literals can
>> contain place holders. These are indicated by the Dollar sign and
>> curly braces (${expression}). The expressions in the place holders and
>> the text between them get passed to a function. The default function
>> just concatenates the parts into a single string. If there is an
>> expression preceding the template literal (tag here),  the template
>> string is called "tagged template literal". In that case, the tag
>> expression (usually a function) gets called with the processed
>> template literal, which you can then manipulate before outputting. To
>> escape a back-tick in a template literal, put a backslash \ before the
>> back-tick.
>>
>>
>
>
> --
> _,,,^..^,,,_
> best, Eliot
>
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