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Overview
| Comment: | fdhjkashflksdh docs dfhjkadsklf |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
bc95a35c8689a54929ab85423261efb5 |
| User & Date: | lexi 2019-05-25 06:56:45 |
Context
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2019-05-25
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| 06:57 | jfjkakljahdjhkjh Leaf check-in: 32b0e979b1 user: lexi tags: trunk | |
| 06:56 | fdhjkashflksdh docs dfhjkadsklf check-in: bc95a35c86 user: lexi tags: trunk | |
| 06:53 | fix NEOVIM'S MISTAKES check-in: 041b160fa2 user: lexi tags: trunk | |
Changes
Changes to README.md.
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### embedding scheme
there are three special forms that allow us to embed scheme code that is evaluated when the scml is translated to html. the simplest form is `(% …)` which will execute arbitrary scheme code. this code can mutate the execution environment, but its output will be ignored. a good use for this form is to define functions or globals
(% (define page-title "index")
(define path '(root list index))
(define (emit-form target prompt)
`((form (action . ,target) (method . "POST"))
(div prompt "? " (- input (type . "text")
(name . "field"))
(- input (type . "submit"))))))
the next form, `(@ …)` is designed to make it as easy as possibly to use scheme functions from within the template body. simply write a normal scheme function call but with the atom `@` preceding the function name to dump its result into the page. the following example uses the defined functions to succinctly generate multiple simple forms. (note that `(% …)` can be implemented in terms of `(@ …)` as `(@ begin … '())`)
(- !doctype html)
(html (head (title "form example"))
|
| |
54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 |
### embedding scheme
there are three special forms that allow us to embed scheme code that is evaluated when the scml is translated to html. the simplest form is `(% …)` which will execute arbitrary scheme code. this code can mutate the execution environment, but its output will be ignored. a good use for this form is to define functions or globals
(% (define page-title "index")
(define path '(root list index))
(define (emit-form target prompt)
`((form (action . ,target) (method . "POST"))
(div ,prompt "? " (- input (type . "text")
(name . "field"))
(- input (type . "submit"))))))
the next form, `(@ …)` is designed to make it as easy as possibly to use scheme functions from within the template body. simply write a normal scheme function call but with the atom `@` preceding the function name to dump its result into the page. the following example uses the defined functions to succinctly generate multiple simple forms. (note that `(% …)` can be implemented in terms of `(@ …)` as `(@ begin … '())`)
(- !doctype html)
(html (head (title "form example"))
|