XQuery 1.0 - n个字符后分割字符串

Question

是否有可能，使用XQuery 1.0拆分字符串，让我们说100个字符长，到字符串序列，每个10个字符长?

换句话说，我需要使用XQuery 1.0

Answer 1

当然;下面是一种方法:

let $width := 10
let $string := '...'
for $i in 0 to string-length($string) idiv $width
let $pos := $i * $width + 1
return substring($string, $pos, $width)

希望这有帮助，基督教

Answer 2

这是一个使用递归函数的可能解决方案:

declare function local:split($str,$start,$len){
  let $res := substring($str,$start,$len)
  return if ($res) then ($res,local:split($str,$start + $len, $len)) else $res
};
let $x := "sdlfksldfkjsldfkfjsldkjflskfd"
return local:split($x,1,10)

Answer 3

最明显的方法是

for $i in 0 to string-length($input)+9 idiv 10
return substring($input, $i*10+1, 10)

Answer 4

使用递归函数，您可以:

declare function local:splitString($String as xs:string?, $length as xs:integer) as xs:string* {
  if (exists($String) and string-length($String) > $length) then 
    (substring($String,1,$length), local:splitString(substring($String,$length),$length)) 
  else $String
};