rexx.helpcmd

REXX Overview

Version 2.1.9 - 22 Feb 2020

The VM/370 Sixpack features an integrated version of BREXX.  REXX procedures
have a filetype of EXEC, and must begin with "/* on the first line.

Note that this is an incomplete port of BREXX to VM/370.  In particular the
external variable and subcommand interfaces are not operational.


The following instructions are supported (except for those marked with **):
   ADDRESS CMS
   ADDRESS SYSTEM
   ARG [template]
   CALL name [expression] [,expression] ...
   DO [repetitor] [conditional]; [statement-list] END [symbol]
   DROP name [name] ...
   EXIT [expression]
   IF expression THEN statement1; [ELSE statement2]
   INTERPRET expression
   ITERATE [symbol]
   LEAVE [symbol]
   NOP
   NUMERIC DIGITS [expression]
   NUMERIC FORM [form]
   NUMERIC FUZZ [expression]
   PARSE [UPPER] source [template]
   PROCEDURE [EXPOSE name [name] ...]
   PULL [template]
   PUSH [expression]
   QUEUE [expression]
   RETURN [expression]
   SAY [expression]
   SELECT; when-list [OTHERWISE [statement-list]] END
   SIGNAL name
** SIGNAL VALUE expression
** SIGNAL ON condition [NAME handler]
** SIGNAL OFF condition
   TRACE [VALUE] expression

The following built-in functions are provided:
   ABBREV(string1, string2, [length])
   ABS(number)
   ADDRESS()
   ARG([argument-number], [option])
   BITAND(string1, [string2], [pad])
   BITOR(string1, [string2], [pad])
   BITXOR(string1, [string2], [pad])
   B2X(binary-string)
   CENTER(string, length, [pad])
   CHANGESTR(substring, string, substring)
   CHARIN([name], [start], [length])
   CHAROUT([name], [string], [start]) *** 'start' is ignored, treated as 1
   CHARS([name])
   CMSFLAG(flag)
   COMPARE(string1, string2, [pad])
   CONDITION([option])
   COPIES(string, count)
   COUNTSTR(substring, string)
   C2D(data, [length])
   C2X(data)
   DATATYPE(string, [type])
   DATE([option])
   DELSTR(string, start, [length])
   DELWORD(string, start, [length])
   DIGITS()
   D2C(number, [length])
   D2X(number, [length])
   ERRORTEXT(number)
   FORM()
   FORMAT(number, [m], [n], [exp1], [exp2])
   FUZZ()
   INSERT(string1, string2, [pos], [length], [pad])
   LASTPOS(target, string, [start])
   LEFT(string, length, [pad])
   LENGTH(string)
   LINEIN([name], [line], [count])
   LINEOUT([name], [string], [line]) *** 'line' is ignored, treated as 1
   LINES([name])
   LINESIZE()
   MAX(number, [number], ...)
   MIN(number, [number], ...)
   OVERLAY(string1, string2, [pos], length], [pad])
   POS(target, string, [start])
   QUEUED()
   RANDOM([min], [max], [seed])
   REVERSE(string)
   RIGHT(string, length, [pad])
   SIGN(number)
   SOURCELINE([number])
   SPACE(string, [count], [pad])
   SQRT(number)
   STORAGE()
   STRIP(string, [option], [character])
   SUBSTR(string, start, [length], [pad])
   SUBWORD(string, start, [length])
   SYMBOL(name)
   TIME([option])
   TRACE([type])
   TRANSLATE(string, [output], [input], [pad])
   TRUNC(number, [digits])
   VALUE(]name, [value], [type])
   VERIFY(string, search, [option], [start])
   USERID()
   WORD(string, number)
   WORDINDEX(string, number)
   WORDLENGTH(string, number)
   WORDPOS(phrase, string, [start])
   WORDS(string)
   XRANGE([first], [last])
   X2B(hex-string) (not working)
   X2C(hex-string)
   X2D(hex-string, [length])