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All X-PLOR statements are composed of words.
- <word>:==
-
-
-
A one-character word.
-
-
A sequence of nonblank characters
that contains no one-character words and
that is enclosed by spaces or one-character words.
-
-
A quoted string, i.e., a sequence of any characters enclosed in
double quotes ( ") (a double quote itself can be produced by
""" ).
A one-character word comprises special letters:
- <one-character-word>:==
-
) | ( | : | @
| =
In the case of mathematical
expressions (such as vector statement
and evaluate statement),
one-character words constitute
a larger set of special letters:
- <one-character-word>:==
-
) | ( | : | @
| = | < | > |
# |
| ^ |
~ | + | - |
Characters between comment braces { } or after an ``!" on the same line
are always ignored. The carriage return is treated as a space. Unless
the word is a quoted string, all letters are converted to
uppercase upon parsing.
Web Manager
Sat Mar 11 09:37:37 PST 1995