On 4/10/2013 4:22 PM, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
Hello,
I need to identify number of pages by Lua of an image which is to be
inserted.
The image can be of all various types supported by Ctx - e.g. .png, .pdf.
I've been using the following code so far (based on a mailing thread in
the past):
----
function nOfPages(fn)
local fig = figures.push{name = fn}
local info = figures.identify()
figures.check()
local n = fig.used.pages
inspect(fig)
figures.pop()
return n
end
----
But the code above break Ctx in the case that the image doesn't exist.
I'd need to modify the solution somehow so to return 'nil' or 'false'
(or a error message) in the case the file was not found.
How to do it?
there's a status table in fig
Hans
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