[cups.development] [RFE] STR #2814: Support AllowedChars for String/Password type custom PPD options

Michael Sweet msweet at apple.com
Mon May 12 12:32:47 PDT 2008


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[STR New]

I am hesitant to extend the custom option syntax in 1.4 without some more
discussion. In particular, it seems like using the POSIX regular
expression syntax would be better than a simple set of allowed characters
and open up more robust string validation.

As for range limiting the custom input, that is the responsibility of the
caller/application - the custom parameter data is provided so that the UI
can map the limits appropriately to UI controls/feedback.  Like
UIConstraints, they aren't enforced by the library because the recovery
mode (what to do when a custom parameter is out of range or when a
conflicting choice is made) cannot be described in the PPD.

Link: http://www.cups.org/str.php?L2814
Version:  -feature





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