Il giorno venerdì 18 novembre 2016 21:23:38 UTC+1, Ian Lance Taylor ha
scritto:
>
> On Fri, Nov 18, 2016 at 11:50 AM, Manlio Perillo
> <manlio....@gmail.com <javascript:>> wrote:
> >
> > I'm trying to implement HTML form support in Go,
> > Forms are one of the most complex components to implement in a web
> > application.
> >
> > Here is a simple form with only two text field, using bootstrap:
> > https://gist.github.com/anonymous/5a21a22e6d5fd9d0f745c1700c634b54
> >
> > Writing the HTML code by hand is unreasonable, and having the form to be
> > automatically generated from Go source code is not flexible.
> > There are a lot of details for the form UI that needs to be specified.
> >
> > I would like to have support for macros in html/template.
> > As an example, something like this:
> > https://gist.github.com/anonymous/6a5f0165df14677e277d7d2b53294882
> >
> > When parsing the macro action {{% func <args> %}}, the verbatim text for
> > <args> will be passed to fun.
> > The function func will parse, at template parsing time, the text and
> will
> > return the transformed text that will be then processed by parser.
> >
> > Is this feasible?
>
> It shouldn't be necessary to add a programming language to templates,
> since you already have a programming language to use, namely Go
> itself. This doesn't necessarily mean generating HTML in Go--the Go
> function can simply be a text transformation on its arguments.
>
>
It's true that I can use raw strings, e.g (not tested).
{{ field "sku" . `<label class="col-xs-2 control-label">SKU</label>
<input autofocus>
<help>{{ .Errors.sku }}</help>`
}}
However there are two problems:
1) I need to parse the argument each time the function is called
2) the text returned by the function will not be parsed again by the
template parser.
Manlio
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