Hi, Joel

> I still periodically have to figure out which kind of logic to
> use...  ;-)  In a related vein:
>
>     >> uppercase "foo"
>     == "FOO"
>     >> uppercase %foo
>     == %FOO

I find very useful these kind of tables in the core userguide, but what does
it means to uppercase an image?

Table 5-10. String Types
String! Character strings
Binary! Byte strings
Tag ! HTML and XML tags
File! File names
URL! Internet uniform resource locators
Email! Email names
Image! Image data
Issue! Sequence codes
---
Ciao
Romano


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