Re: [NTG-context] 'figures.getinfo()' not to exit ConTeXt

Are you sure that data is not nil here? If so, this function returns nil. dr. Hans van der Meer

On 6 Dec 2018, at 11:20, Procházka Lukáš Ing. wrote:

Hello,

I'm using the following code, mentioned here some time ago, to get some info about PDF:

---- \startluacode figures.getinfo = function(name, page) if type(name) == "string" then name = { name = name, page = page } end if name.name then local data = figures.push(name)

--figures.identify() local ok, res = pcall(figures.identify) print(">>1", ok, res)

--figures.check() local ok, res = pcall(figures.check) print(">>2", ok, res)

figures.pop() return data end end

local data = figures.getinfo("NonExisting.pdf")

\stopluacode ----

The problem is that once the PDF file doesn't exist, the function causes ConTeXt to exit, even when I enclose 'figure.check()' into the 'pcall' (to be handled like try/catch mechanism).

Is there a way so that the function 'figures.getinfo()' does't exit ConTeXt, it just returns 'nil', or even gives info which directories (or even which file types) were searched?

TIA.

Best regards,

Lukas

-- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS: nrpt3sn | IČO: 40763439 Bezová 1658 147 14 Praha 4

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