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THE META-HTML LANGUAGE REFERENCE MANUAL
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Name: COERCE-VAR
Section:
Variables
Synopsis:
<coerce-var VARNAME [TYPE=(STRING|BINARY)]>
Description:
Coerces VARNAME's data to have the type specified by the argument to TYPE. You can convert a binary object to a string object, and vice-versa.
A binary variable might be created as the result of a call to stream-get-contents
, for example. Once the data is read, you might wish to perform some substitutions on it, or otherwise get its value. To do so, you call coerce-var
on the value:
<with-open-stream s /tmp/file mode=read>
<stream-get-contents s foo>
</with-open-stream><p>
<coerce-var foo type=string>
<subst-in-string <get-var foo> "Hello" "Goodbye">
<get-var foo>
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The
META-HTML
Reference Manual V1.4
Copyright © 1995, 1996,
Brian J. Fox,
1996, 1997 Universal Access Inc.
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