Thread overview
Vibe.d Diet Templatesand Forms
Jan 19, 2023
seany
Jan 20, 2023
seany
January 19, 2023

Hello

Please consider this diet template:

    doctype html
    html(lang="es", dir="ltr")
        head
            meta(name="viewport", content="width=device-width, user-scalable=no, initial-scale=1.0")
            meta(charset="utf-8")
            link(rel="stylesheet", type="text/css", href="main.css")
            <link href="https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700;800&display=swap" rel="stylesheet">

        body

            div.main
                div.container.a-container#a-container
                    form(id="loginfrm", class="frm", method="post", action="/login_attempt")
                        h2.form_title.title Create Account
                        span.form__span or use email for registration
                        input.form__input(type="text", placeholder="Name" )
                        input.form__input(type="text", placeholder="Email")
                        input.form__input(type="password", placeholder="Password")
                        button().form__button.button.submit SIGN UP

Please notice the line form(id= .... This line is causing the following error:

    login.dt(29,45): Error: found `method` when expecting `;` following `return` statement
    login.dt(29,51): Error: found `=` instead of statement
    login.dt(28,12): Error: missing closing `)` after `if ("form"`
    login.dt(28,21): Error: found `)` when expecting `;` following statement
    login.dt(28,36): Error: found `method` when expecting `)`
    login.dt(28,42): Error: found `=` when expecting `)`
    login.dt(28,43): Error: found `""` when expecting `)`
    login.dt(28,45): Error: found `)` instead of statement
    /root/.dub/packages/diet-ng-1.8.1/diet-ng/source/diet/html.d(246,8): Error: template     instance `diet.html.compileHTMLDietFileString!("login.dt", contents,     DefaultDietFilters).exec!(StreamOutputRange!(InterfaceProxy!(OutputStream), 1024LU))` error instantiating
    /root/.dub/packages/vibe-d-0.9.5/vibe-d/http/vibe/http/server.d(351,66):        instantiated from here: `compileHTMLDietFileString!(StreamOutputRange!(InterfaceProxy!(OutputStream), 1024LU))`
    source/app.d(41,5):        instantiated from here: `render!"login.dt"`

What is the problem? How can I resolve it? Thank you.

January 19, 2023

On 1/19/23 6:24 PM, seany wrote:

>

Hello

Please consider this diet template:

        doctype html
        html(lang="es", dir="ltr")
            head
                meta(name="viewport", content="width=device-width, user-scalable=no, initial-scale=1.0")
                meta(charset="utf-8")
                link(rel="stylesheet", type="text/css", href="main.css")
               

Did you mean to include straight HTML here? I don't think that is supported.

>

Please notice the line form(id= .... This line is causing the following error:

        login.dt(29,45): Error: found method when expecting ; following return statement
        login.dt(29,51): Error: found = instead of statement
        login.dt(28,12): Error: missing closing ) after if ("form"
        login.dt(28,21): Error: found ) when expecting ; following statement
        login.dt(28,36): Error: found method when expecting )
        login.dt(28,42): Error: found = when expecting )
        login.dt(28,43): Error: found "" when expecting )
        login.dt(28,45): Error: found ) instead of statement
/root/.dub/packages/diet-ng-1.8.1/diet-ng/source/diet/html.d(246,8): Error: template     instance diet.html.compileHTMLDietFileString!("login.dt", contents, DefaultDietFilters).exec!(StreamOutputRange!(InterfaceProxy!(OutputStream), 1024LU)) error instantiating
/root/.dub/packages/vibe-d-0.9.5/vibe-d/http/vibe/http/server.d(351,66):        instantiated from here: compileHTMLDietFileString!(StreamOutputRange!(InterfaceProxy!(OutputStream), 1024LU))
        source/app.d(41,5):        instantiated from here: render!"login.dt"

What is the problem? How can I resolve it? Thank you.

The easiest way to see what the diet compiler is producing is to uncomment the line that outputs the compiled file to the console during compilation. That is located here: https://github.com/rejectedsoftware/diet-ng/blob/856bf6d75127955565b3b5edd9b1f4418b8ec7c3/source/diet/html.d#L234

With that being said, how diet works is to convert the diet template directly into D code. It relies on the translation to produce valid D code (no specialized parsing or semantic-aware processing is done, it's just a direct translation from diet AST to D). What is happening here is the diet compiler is not producing valid D code. This can happen when there are bugs, but usually only when there are D "escapes", which don't correctly set up the syntax (like if you include a curly brace, which isn't expected)

However, in your code, I don't see any "escapes", so I'm not sure what could cause it there.

I will note that most of the time, when I get diet errors like that the error is not on that specific line, but on something that happened before to confuse the D compiler. That html link node might be the issue, but again, I'm not sure what is intended there.

-Steve

January 20, 2023

On Friday, 20 January 2023 at 01:32:04 UTC, Steven Schveighoffer wrote:

>

On 1/19/23 6:24 PM, seany wrote:

>

[...]

Did you mean to include straight HTML here? I don't think that is supported.

[...]

You are indeed right. The Link was a problem, and removing the link actually have sorted the issue. Thank you.