Maybe also look at Pollen's project server. Though intended primarily as a
development tool, it basically amounts to a dynamic page-generation system that
runs through the Racket web server. I haven't tried deploying it live, though
there's no reason in principle that one couldn't.
As for files vs database, do whatever pleases you of course. But disk I/O is a
small cost relative to dynamic rendering (which in Pollen relies on `eval`), so
one doesn't save much by avoiding it. Also, for most websites, reads far
outnumber writes. If every read hits the database, it puts a low ceiling on
performance.
On Wednesday, November 4, 2015 at 8:54:01 AM UTC-8, spdegabrielle wrote:
> I'd prefer to do it in memory.
> Writing to disk just to read it straight back seems like a lot of effort, and
> I lose the ability to make pages that are updated on-the-fly.
>
> I'll have a look at the source for the pollen and scribble renderers to see
> if I can separate reading a file from transforming markup.
>
> Thanks again
>
> Stephen
>
>
> On Wed, 4 Nov 2015 at 15:42, Matthew Butterick <chro...@gmail.com> wrote:
> I haven't spent much time thinking about database / live web server
> integration. Pollen (and Greg Hendershott's Frog, which also supports
> Scribble syntax) are built around a static model. Of course, you could
> retrieve source from your database, write it to a temp file, and render that
> path.
>
>
>
>
>
>
>
> On Wednesday, November 4, 2015 at 3:44:33 AM UTC-8, spdegabrielle wrote:
>
> > Thanks Matthew,
>
> >
>
> > I have two question that I didn't express clearly:
>
> > 1. A renderer that would create xexpr's for direct consumption of the
> > racket web server. It sounds like pollen will be perfect! (I quickly
> > dismissed writing my own wiki-markup renderer on the basis that scribble
> > already existed)
>
> > 2. A renderer that would accept a string rather than a path. Both the
> > scribble and pollen renderers seem to require a path to a file, but I'm
> > keen to store pages in a database[1].
>
> >
>
> > I think you have solved (1) thanks! - do you have any suggestions for (2)?
>
> >
>
> > I have another concern that I haven't thought through...can I (should I)
> > enable users to enter executable code - I quite like the idea though it
> > obviously holds risks :)
>
> >
>
> > Kind regards,
>
> >
>
> > Stephen
>
> >
>
> >
>
> > [1] as an alternative I could just store my wiki pages as text files in a
> >git repository and get history for free but I wanted to keep it simple.
>
> >
>
> >
>
> > On Wed, 4 Nov 2015 at 02:27, Matthew Butterick <chro...@gmail.com> wrote:
>
> > I found this task challenging too, so I made a Scribble-derived DSL that's
> > natively oriented toward making X-expressions, for instance:
>
> >
>
> >
>
> >
>
> >
>
> >
>
> > #lang pollen/markup
>
> >
>
> >
>
> >
>
> > ◊title{Bottles --- ◊italic{Abridged}}
>
> >
>
> >
>
> >
>
> > ◊(apply itemlist
>
> >
>
> > (for/list ([n (in-range 100 0 -1)])
>
> >
>
> > ◊item{◊(format "~a" n) bottles.}))
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> > On Tuesday, November 3, 2015 at 4:08:01 PM UTC-8, spdegabrielle wrote:
>
> >
>
> > > Hi,
>
> >
>
> > >
>
> >
>
> > > is there a way to to generate xexprs for consumption of the web server
>
> >
>
> > >
>
> >
>
> > > I thought making a simple wiki with scribble as the syntax might be fun,
> > > but I'm tripping at this first hurdle i.e. (scribblestring->xexpr
> > > a-string) ->xexpr
>
> >
>
> > >
>
> >
>
> > > Any suggestions appreciated
>
> >
>
> > >
>
> >
>
> > > Stephen
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > > #lang racket
>
> >
>
> > > (require scribble/decode)
>
> >
>
> > > (require scribble/render)
>
> >
>
> > > ;(require scribble/html-render)
>
> >
>
> > > ;(require scribble/text-render)
>
> >
>
> > > (require scribble/markdown-render)
>
> >
>
> > >
>
> >
>
> > > (define a
>
> >
>
> > > "@title{Bottles --- @italic{Abridged}}
>
> >
>
> > > @(apply itemlist
>
> >
>
> > > (for/list ([n (in-range 100 0 -1)])
>
> >
>
> > > @item{@(format \"~a\" n) bottles.}))")
>
> >
>
> > > a
>
> >
>
> > >
>
> >
>
> > > (render (list (decode (decode-string a))) (list
> > > "/Users/spdegarielle/Desktop/") #:render-mixin render-mixin )
>
> >
>
> >
>
> >
>
> > --
>
> >
>
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>
> >
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>
> >
>
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>
>
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