Seeking confirmation of a bug...
ambassador at fourthworld.com
Thu May 16 13:30:22 EDT 2019
Paul Dupuis wrote:
> I just filed a serious bug for LC904 that is only under OSX. When
> using 'asnwer file <prompt> with type <typelist>' the selected type is
> supposed to be returned in 'the result'. This works as expected under
> Windows, but under OSX using LC904 STABLE, 'the result' is the same as
> the 'it', both contain the file path selected.
> Please see https://quality.livecode.com/show_bug.cgi?id=22070
While it will be useful to have this fixed, the current state of macOS
should provide a mildly-tedious-but-not-difficult workaround:
The older Finder type codes (the four-character identifiers hidden away
in the file's metadata) are long deprecated, and for more than a decade
macOS relies on file extensions to determine type.
Since the range of type options is limited to types you set, a few
minutes writing a function to match the file extension with the type
categories you provided should at least get you going while waiting for
an engine fix.
In the odd case where you may encounter a very old (or misnamed) file
that has no type extension in its name, you could extend the function to
see if the old Finder type is included in info provided with "the
If you were super-thorough, you might even provide another check of file
contents to confirm type. Image formats have magic numbers, and text
formats have patterns identifiable within a reasonably small number of
bytes. A short read can confirm the type of misnamed files even beyond
what can be expected with "answer file".
The case block for your supported types is likely still in your code
base. Copying it to a new function and adding the earlier step of
handling missing types by Finder code (if not already there) will make
short work of this.
Fourth World Systems
Software Design and Development for the Desktop, Mobile, and the Web
Ambassador at FourthWorld.com http://www.FourthWorld.com
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