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THE META-HTML LANGUAGE REFERENCE MANUAL
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Section Intro:
Relational Operators
Synopsis:
Relational operators in Meta-HTML return information about the relationship between two items. There are three logical operators, and
, or
, and not
.
There are several other operators which compare numeric values; the section Arithmetic Operators cover those in detail.
Commands:
Function Documentation
Returns the string "true"
when the number value of ARG1 is equal to the number value of ARG2.
Returns the string "true"
when the numeric value of
ARG-1 is greater than the numeric value of ARG-2.
Returns the string "true"
when the numeric value of
ARG-1 is less than the numeric value of ARG-2.
BODY is evaluated. If the result is the empty
string, then the string "true" is returned, otherwise, nothing
is returned. The BODY is simply the entire contents of the
simple tag, without the word "not" in it. Thus, in typical usage, one
might write:
<when <not <get-var foo>>>
<comment> Complain that FOO is missing. </comment>
</when>
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Function Index
Variable Index

The
META-HTML
Reference Manual V1.4
Copyright © 1995, 1996,
Brian J. Fox,
1996, 1997 Universal Access Inc.
Found a bug? Send mail to
bug-manual@metahtml.com