UrWeb
UrWeb is an actively used programming language created in 2008.
| 12Years Old | 691Users | ?Jobs |
- the UrWeb website
- UrWeb on github
- UrWeb first appeared in 2008
- file extensions for UrWeb include ur and urs
- Have a question about UrWeb not answered here? Email me and let me know how I can help.
Example code from Linguist:
open Parse.String
val digit = satisfy isdigit
val decimal_of_len n =
ds <- count n digit;
return (List.foldl (fn d acc => 10*acc + ((ord d)-(ord #"0"))) 0 ds)
val date =
y <- decimal_of_len 4;
char' #"-";
m <- decimal_of_len 2;
char' #"-";
d <- decimal_of_len 2;
if m > 0 && m <= 12 then
return {Year=y, Month=(Datetime.intToMonth (m-1)), Day=d}
else
fail
(* We parse fractions of a second, but ignore them since Datetime
doesn't permit representing them. *)
val time =
h <- decimal_of_len 2;
char' #":";
m <- decimal_of_len 2;
s <- maybe (char' #":";
s <- decimal_of_len 2;
maybe' (char' #"."; skipWhile isdigit);
return s);
return {Hour=h, Minute=m, Second=Option.get 0 s}
val timezone_offset =
let val zulu = char' #"Z"; return 0
val digits = decimal_of_len 2
val sign = or (char' #"+"; return 1)
(char' #"-"; return (-1))
in
zulu `or` (s <- sign;
h <- digits;
m <- (maybe' (char' #":"); or digits (return 0));
return (s*(h*60+m)))
end
val datetime_with_tz =
d <- date; char' #"T"; t <- time;
tz <- timezone_offset;
return (d ++ t ++ {TZOffsetMinutes=tz})
val datetime =
d <- datetime_with_tz;
return (d -- #TZOffsetMinutes)
fun process v =
case parse (d <- datetime_with_tz; eof; return d) v of
Some r =>
let
val {Year=year,Month=month,Day=day,
Hour=hour,Minute=minute,Second=second} =
Datetime.addMinutes (r.TZOffsetMinutes) (r -- #TZOffsetMinutes)
fun pad x =
if x < 10 then "0" `strcat` show x else show x
in
<xml>{[pad hour]}:{[pad minute]}:{[pad second]} {[month]} {[day]}, {[year]}</xml>
end
| None => <xml>none</xml>
fun main () : transaction page =
input <- source "2012-01-01T01:10:42Z";
return <xml>
<body>
<label>
Enter an
<a href="https://en.wikipedia.org/wiki/ISO_8601">ISO 8601</a>
datetime here:
<ctextbox source={input} />
</label>
<ul><dyn signal={v <- signal input; return (process v)} /></ul>
</body>
</xml>Trending Repos
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Last updated June 22nd, 2020