Introduction String Manipulations
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 ADDASCII()   Adds a value to each ASCII code in a string
 AFTERATNUM() Returns remainder of a string after nth appearance of sequence
 ASCIISUM()   Finds sum of the ASCII values of all the characters of a string
 ASCPOS()     Determines ASCII value of a character at a position in a string
 ATADJUST()   Adjusts the beginning position of a sequence within a string
 ATNUM()      Determines the starting position of a sequence within a string
 ATREPL()     Searches for a sequence within a string and replaces it
 ATTOKEN()    Finds the position of a token within a string
 BEFORATNUM() Returns string segment before the nth occurrence of a sequence
 CENTER()     Centers a string using pad characters
 CHARADD()    Adds the corresponding ASCII codes of two strings
 CHARAND()    Links corresponding ASCII codes of paired strings with AND
 CHAREVEN()   Returns characters in the even positions of a string
 CHARLIST()   Lists each character in a string
 CHARMIRR()   Mirrors characters within a string
 CHARMIX()    Mixes two strings together
 CHARNOLIST() Lists the characters that do not appear in a string
 CHARNOT()    Complements each character in a string
 CHARODD()    Returns characters in the odd positions of a string
 CHARONE()    Reduces adjoining duplicate characters in string to 1 character
 CHARONLY()   Determines the common denominator between two strings
 CHAROR()     Joins the corresponding ASCII code of paired strings with OR
 CHARPACK()   Compresses (packs) a string
 CHARRELA()   Correlates the character positions in paired strings
 CHARRELREP() Replaces characters in a string depending on their correlation
 CHARREM()    Removes particular characters from a string
 CHARREPL()   Replaces certain characters with others
 CHARSORT()   Sorts sequences within a string
 CHARSPREAD() Expands a string at the tokens
 CHARSWAP()   Exchanges all adjoining characters in a string
 CHARUNPACK() Decompresses (unpacks) a string
 CHARXOR()    Joins ASCII codes of paired strings with exclusive OR operation
 CHECKSUM()   Calculates the checksum for a character string (algorithm)
 COUNTLEFT()  Counts a particular character at the beginning of a string
 COUNTRIGHT() Counts a particular character at the end of a string
 CRYPT()      Encrypts and decrypts a string
 CSETATMUPA() Determines setting of the multi-pass mode for ATXXX() functions
 CSETREF()    Determines whether reference sensitive functions return a value
 EXPAND()     Expands a string by inserting characters
 JUSTLEFT()   Moves characters from the beginning to the end of a string
 JUSTRIGHT()  Moves characters from the end of a string to the beginning
 LIKE()       Compares character strings using wildcard characters
 LTOC()       Converts a logical value into a character
 MAXLINE()    Finds the longest line within a string
 NUMAT()      Counts the number of occurrences of a sequence within a string
 NUMLINE()    Determines the number of lines required for string output
 NUMTOKEN()   Determines the number of tokens in a string
 PADLEFT()    Pads a string on the left to a particular length
 PADRIGHT()   Pads a string on the right to a particular length
 POSALPHA()   Determines position of first alphabetic character in a string
 POSCHAR()    Replaces individual character at particular position in string
 POSDEL()     Deletes characters at a particular position in a string
 POSDIFF()    Finds the first position from which two strings differ
 POSEQUAL()   Finds the first position at which two strings are the same
 POSINS()     Inserts characters at a particular position within a string
 POSLOWER()   Finds the position of the first lower case alphabetic character
 POSRANGE()   Determines position of first character in an ASCII code range
 POSREPL()    Replaces one or more characters from a certain position
 POSUPPER()   Finds the position of the first uppercase, alphabetic character
 RANGEREM()   Deletes characters that are within a specified ASCII code range
 RANGEREPL()  Replaces characters within a specified ASCII code range
 REMALL()     Removes characters from the beginning and end of a string
 REMLEFT()    Removes particular characters from the beginning of a string
 REMRIGHT()   Removes particular characters at the end of a string
 REPLALL()    Exchanges characters at the beginning and end of a string
 REPLLEFT()   Exchanges particular characters at the beginning of a string
 REPLRIGHT()  Exchanges particular characters at the end of a string
 RESTTOKEN()  Recreates an incremental tokenizer environment
 SAVETOKEN()  Saves the incremental tokenizer environment to a variable
 SETATLIKE()  Provides an additional search mode for all AT functions
 STRDIFF()    Finds similarity between two strings (Levenshtein Distance)
 STRSWAP()    Interchanges two strings
 TABEXPAND()  Converts tabs to spaces
 TABPACK()    Converts spaces in tabs
 TOKEN()      Selects the nth token from a string
 TOKENAT()    Determines the most recent TOKENNEXT() position within a string
 TOKENEND()   Determines if more tokens are available in TOKENNEXT()
 TOKENINIT()  Initializes a string for TOKENNEXT()
 TOKENLOWER() Converts initial alphabetic character of a token into lowercase
 TOKENNEXT()  Provides an incremental tokenizer
 TOKENSEP()   Provides separator before/after most recently retrieved TOKEN()
 TOKENUPPER() Converts the initial letter of a token into upper case
 VALPOS()     Determines numerical value of character at particular position
 WORDONE()    Reduces multiple appearances of double characters to one
 WORDONLY()   Finds common denominator of 2 strings on double character basis
 WORDREPL()   Replaces particular double characters with others
 WORDSWAP()   Exchanges double characters lying beside each other in a string
 WORDTOCHAR() Exchanges double characters for individual ones