58 lines
1.3 KiB
Scheme
58 lines
1.3 KiB
Scheme
|
(library
|
||
|
|
(xml)
|
||
|
|
|
||
|
|
(export tag
|
||
|
|
vcat)
|
||
|
|
|
||
|
|
(import (rnrs)
|
||
|
|
(fmt fmt)
|
||
|
|
(list-utils))
|
||
|
|
|
||
|
|
(define (dquote doc)
|
||
|
|
(cat (dsp #\") doc (dsp #\")))
|
||
|
|
|
||
|
|
(define (to-attribute-name sym)
|
||
|
|
(define (to-underscore c)
|
||
|
|
(if (eq? #\- c) #\_ c))
|
||
|
|
|
||
|
|
(list->string (map to-underscore (string->list (symbol->string sym)))))
|
||
|
|
|
||
|
|
(define (attribute dotted-pair)
|
||
|
|
(let ((key (to-attribute-name (car dotted-pair)))
|
||
|
|
(val (cdr dotted-pair)))
|
||
|
|
(cat (dsp key)
|
||
|
|
(dsp "=")
|
||
|
|
(dquote ((if (string? val) dsp wrt) val)))))
|
||
|
|
|
||
|
|
(define (%open-tag sym attrs end)
|
||
|
|
(cat (dsp "<")
|
||
|
|
(dsp sym)
|
||
|
|
(dsp " ")
|
||
|
|
(apply cat (intersperse (dsp " ")
|
||
|
|
(map attribute attrs)))
|
||
|
|
(dsp end)))
|
||
|
|
|
||
|
|
(define (open-tag sym attrs)
|
||
|
|
(%open-tag sym attrs ">"))
|
||
|
|
|
||
|
|
(define (simple-tag sym attrs)
|
||
|
|
(%open-tag sym attrs "/>"))
|
||
|
|
|
||
|
|
(define (close-tag sym)
|
||
|
|
(cat (dsp "</")
|
||
|
|
(dsp sym)
|
||
|
|
(dsp ">")))
|
||
|
|
|
||
|
|
(define (tag sym attrs . body)
|
||
|
|
(if (null? body)
|
||
|
|
(simple-tag sym attrs)
|
||
|
|
(begin
|
||
|
|
(cat (open-tag sym attrs)
|
||
|
|
nl
|
||
|
|
(apply cat body)
|
||
|
|
nl
|
||
|
|
(close-tag sym)))))
|
||
|
|
|
||
|
|
(define (vcat docs)
|
||
|
|
(apply cat (intersperse nl docs))))
|