IBM TSO/E REXX

Function Description
DELWORD Returns a string after deleting a specified number of words, starting at a
specified word in the input string.
FIND * Returns the word number of the first word of a specified phrase found
within the input string.
INDEX * Returns the character position of the first character of a specified string
found in the input string.
INSERT Returns a character string after inserting one input string into another
string after a specified character position.
LASTPOS Returns the starting character position of the last occurrence of one
string in another.
LENGTH Returns the length of the input string.
OVERLAY Returns a string that is the target string overlaid by a second input
string.
POS Returns the character position of one string in another.
REVERSE Returns a character string, the characters of which are in reverse order
(swapped end for end).
STRIP Returns a character string after removing leading or trailing characters
or both from the input string.
SUBSTR Returns a portion of the input string beginning at a specified character
position.
SUBWORD Returns a portion of the input string starting at a specified word number.
TRANSLATE Returns a character string with each character of the input string
translated to another character or unchanged.
VERIFY Returns a number indicating whether an input string is composed only of
characters from another input string or returns the character position of
the first unmatched character.
WORD Returns a word from an input string as indicated by a specified number.
WORDINDEX Returns the character position in an input string of the first character in
the specified word.
WORDLENGTH Returns the length of a specified word in the input string.
WORDPOS Returns the word number of the first word of a specified phrase in the
input string.
WORDS Returns the number of words in the input string.
* Indicates a non-SAA built-in function provided only by TSO/E.
Miscellaneous Functions
Function Description
ADDRESS Returns the name of the environment to which commands are currently
being sent.
ARG Returns an argument string or information about the argument strings to
a program or internal routine.
BITAND Returns a string composed of the two input strings logically ANDed
together, bit by bit.
BITOR Returns a string composed of the two input strings logically ORed
together, bit by bit.
Built-In Functions
Chapter 5. Using Functions 65