type: function (subr) location: built-in source file: xlstr.c Common LISP compatible: similar supported on: all machines
(string-left-trim <trim-stuff> <string> ) <trim-stuff> - a string expression <string> - a string expression
The STRING-LEFT-TRIM function takes the <trim-stuff> characters and removes them from the left end of the <string>. The <trim-stuff> characters are an un-ordered set of characters to be removed - so any character that occurs in <trim-stuff> is removed if it appears in left portion of <string>. A new string is created and returned as the result of this function.
(string-left-trim "." "....foo....") ; returns "foo...." (string-left-trim "<>" "<<<<bar>>>>") ; returns "bar>>>>" (string-left-trim "(.)" "..(12.34)..") ; returns "12.34).."
COMMON LISP COMPATIBILITY: Common LISP also supports a list of characters as a valid <trim-stuff> argument. An example of this is: (STRING-TRIM '(#\Tab #\Newline) mystring). XLISP does not support this non-string parameter. Porting from XLISP will be no problem, but modifications will be necessary if porting from Common LISP code which uses a list of characters.