common lisp 的函数 STRING-TRIM, STRING-LEFT-TRIM, STRING-RIGHT-TRIM

string-trim.txt

语法
  string-trim character-bag string => trimmed-string
  string-left-trim character-bag string => trimmed-string
  string-right-trim character-bag string => trimmed-string

参数和值
  character-bag --- 一个 character 的 sequence
  string --- 一个 string 指示符
  trimmed-string --- 一个 string
  
描述
  不描述了

代码
  * (string-trim "abc" "abcaakaaakabcaaa")
  "kaaak"

  * (string-trim '(#\Space #\Tab #\Newline) " garbanzo beans
        ")
  "garbanzo beans"