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6.6.5.10 Reversing and Appending Strings
- Scheme Procedure: string-reverse str [start [end]]
- C Function: scm_string_reverse (str, start, end)
Reverse the string str. The optional arguments start and end delimit the region of str to operate on.
- Scheme Procedure: string-reverse! str [start [end]]
- C Function: scm_string_reverse_x (str, start, end)
Reverse the string str in-place. The optional arguments start and end delimit the region of str to operate on. The return value is unspecified.
- Scheme Procedure: string-append . args
- C Function: scm_string_append (args)
Return a newly allocated string whose characters form the concatenation of the given strings, args.
(let ((h "hello ")) (string-append h "world")) ⇒ "hello world"
- Scheme Procedure: string-append/shared . rest
- C Function: scm_string_append_shared (rest)
Like
string-append
, but the result may share memory with the argument strings.
- Scheme Procedure: string-concatenate ls
- C Function: scm_string_concatenate (ls)
Append the elements of ls (which must be strings) together into a single string. Guaranteed to return a freshly allocated string.
- Scheme Procedure: string-concatenate-reverse ls [final_string [end]]
- C Function: scm_string_concatenate_reverse (ls, final_string, end)
Without optional arguments, this procedure is equivalent to
(string-concatenate (reverse ls))
If the optional argument final_string is specified, it is consed onto the beginning to ls before performing the list-reverse and string-concatenate operations. If end is given, only the characters of final_string up to index end are used.
Guaranteed to return a freshly allocated string.
- Scheme Procedure: string-concatenate/shared ls
- C Function: scm_string_concatenate_shared (ls)
Like
string-concatenate
, but the result may share memory with the strings in the list ls.
- Scheme Procedure: string-concatenate-reverse/shared ls [final_string [end]]
- C Function: scm_string_concatenate_reverse_shared (ls, final_string, end)
Like
string-concatenate-reverse
, but the result may share memory with the strings in the ls arguments.
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