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HTML pretty printer
How do I do a HTML pretty printer in Rebol, ie. write each tag couple on separate lines ?
posted by: lm 29-Mar-2022/4:10:59-7:00
That is a large task. To support all HTML, you need a full HTML parser. There are several of those in libraries for different REBOL versions.
I don't know if one does pretty-printing, but if not, you could implement it off the REBOL format that a library parses the HTML into.
posted by: Kaj 29-Mar-2022/8:10:43-7:00
Don't understand what you want... Show it in this sample - " | text
text2 | | text3 | text4
text5"
posted by: Sergey_Vl 29-Mar-2022/8:30:24-7:00
Like this?
>> a: "123 bbb cccc ddd <2> 222 eee"
>> foreach b parse a none [
if/else b/1 = #"<" [
if/else b/2 = #"/" [print b] [print " " prin b]
] [
prin b
]
prin " "
]
123
bbb
cccc ddd
<2> 222
eee
posted by: Sergey_Vl 29-Mar-2022/8:53:28-7:00
@Sergey:
I've come up with following solution:
probe parse page [
any [to {<} mark: (mark: insert mark "^/") :mark skip] to end
]
" text
text2 | | text3 | text4
text5"
becomes as follows:
text
text2
|
text3
|
text4
text5
posted by: lm 29-Mar-2022/8:54:23-7:00
But it is not "couple"... Or your not maind 2 tags? (sorry, my english is bad...)
posted by: Sergey_Vl 29-Mar-2022/17:14:18-7:00
Rebol (Unlike Red) has the /markup refinement for LOAD. It splits a string into tags and strings.
h: " text
text2 | | text3 | text4
text
5"
foreach x load/markup h [print x]
That gets you each tag and each string on a newline. How you want them nested or indented is a more nuanced issue, eg,
foreach x load/markup h [either tag? x [print x][prin x]]
posted by: Mario 30-Mar-2022/0:26:46-7:00
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