elisp - 是否有将字符串连接成定界字符串的函数？

Question

Emacs Lisp中是否有一个功能与split-string相反，即将列表的元素连接到由给定分隔符分隔的字符串中？换句话说，是否有给定列表的功能，例如("foo" "bar" "baz")和定界符，例如", "，以该分隔符分隔的字符串形式返回该列表，例如"foo, bar, baz"。

Common Lisp seems to have such a function，但在Emacs Lisp中具有相同名称的函数 format 是完全不同的函数。

Answer 1

我认为您正在寻找mapconcat:

mapconcat applies function to each element of sequence: the results, which must be strings, are concatenated. Between each pair of result strings, mapconcat inserts the string separator. Usually separator contains a space or comma or other suitable punctuation.