Squeak-dev March 2017

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Re: [squeak-dev] [Pharo-dev] Re: [vwnc] Does anyone have a "new" string literal?
by H. Hirzel 01 Mar '17

01 Mar '17

On 2/27/17, DavidLeibs <david.leibs(a)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? --Hannes https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Template_lit… 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.

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