Files
linguist/samples/M/Comment.m
David Whitten 4c500e1fb2 Comment.m : routine with comments but no commands
The routine Comment.m has most of the rules for comments and tags.
2014-02-28 10:34:14 -05:00

37 lines
1.2 KiB
Mathematica

Comment ;
; this is a comment block
; comments always start with a semicolon
; the next line, while not a comment, is a legal blank line
;whitespace alone is a valid line in a routine
;** Comments can have any graphic character, but no "control"
;** characters
;graphic characters such as: !@#$%^&*()_+=-{}[]|\:"?/>.<,
;the space character is considered a graphic character, even
;though you can't see it.
; ASCII characters whose numeric code is above 128 and below 32
; are NOT allowed on a line in a routine.
;; multiple semicolons are okay
; a line that has a tag must have whitespace after the tag, bug
; does not have to have a comment or a command on it
Tag1
;
;Tags can start with % or an uppercase or lowercase alphabetic
; or can be a series of numeric characters
%HELO ;
;
0123 ;
;
%987 ;
; the most common label is uppercase alphabetic
LABEL ;
;
; Tags can be followed directly by an open parenthesis and a
; formal list of variables, and a close parenthesis
ANOTHER(X) ;
;
;Normally, a subroutine would be ended by a QUIT command, but we
; are taking advantage of the rule that the END of routine is an
; implicit QUIT