String-Handling Functions Reference (AutoLISP)

The following table provides summary descriptions of the AutoLISP string-handling functions.

String-handling functions
Function	Description
(read [string])	Returns the first list or atom obtained from a string
(strcase string [which])	Returns a string where all alphabetic characters have been converted to uppercase or lowercase
(strcat [string1 [string2 ...])	Returns a string that is the concatenation of multiple strings
(strlen [string ...])	Returns an integer that is the number of characters in a string
(substr string start [length])	Returns a substring of a string
(vl-prin1-to-string object)	Returns the string representation of any LISP object as if it were output by the prin1 function
(vl-princ-to-string object)	Returns the string representation of any LISP object as if it were output by the princ function
(vl-string->list string)	Converts a string into a list of Unicode character codes
(vl-string-elt string position)	Returns the Unicode representation of the character at a specified position in a string
(vl-string-left-trim character-set string)	Removes the specified characters from the beginning of a string
(vl-string-mismatch str1 str2 [pos1 pos2 ignore-case-p])	Returns the length of the longest common prefix for two strings, starting at specified positions
(vl-string-position char-code str [ start-pos [from-end-p]])	Looks for a character with the specified Unicode code in a string
(vl-string-right-trim character-set string)	Removes the specified characters from the end of a string
(vl-string-search pattern string [ start-pos])	Searches for the specified pattern in a string
(vl-string-subst new-str pattern string [start-pos])	Substitutes one string for another, within a string
(vl-string-translate source-set dest-set str)	Replaces characters in a string with a specified set of characters
(vl-string-trim char-set str)	Removes the specified characters from the beginning and end of a string
(wcmatch string pattern)	Performs a wild-card pattern match on a string