Ruby的strip()(条带前导和尾随空格)是否有vimscript等价物？

Question

我正在寻找一个VimScript函数,它可以在字符串之前去除任何尾随或前导空格.

Answer 1

自8.0.1630 vim以来trim().

对于旧版本:假设您尝试在vimscript中的变量上执行此操作,您可以执行以下操作:

let new_var = substitute(var, '^\s*\(.\{-}\)\s*$', '\1', '')

如果你愿意,你可以随时让自己的功能:

function! Strip(input_string)
    return substitute(a:input_string, '^\s*\(.\{-}\)\s*$', '\1', '')
endfunction

let new_var = Strip(var)

Answer 2

从8.0.1630开始， vim具有内置trim()功能来执行此操作。从文档：

trim({text}[, {mask}])

  Return {text} as a String where any character in {mask} is
  removed from the beginning and  end of {text}.
  If {mask} is not given, {mask} is all characters up to 0x20,
  which includes Tab, space, NL and CR, plus the non-breaking
  space character 0xa0.
  This code deals with multibyte characters properly.

因此，调用trim(var)会从中删除开头和结尾的空格var。