diff options
Diffstat (limited to 'tex/generic/context/luatex/luatex-gadgets.lua')
| -rw-r--r-- | tex/generic/context/luatex/luatex-gadgets.lua | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tex/generic/context/luatex/luatex-gadgets.lua b/tex/generic/context/luatex/luatex-gadgets.lua index 9bf423fda..8c835babb 100644 --- a/tex/generic/context/luatex/luatex-gadgets.lua +++ b/tex/generic/context/luatex/luatex-gadgets.lua @@ -73,3 +73,32 @@ function marking.remove(str) end end end + +-- local imgscan = img.scan +-- +-- local valid = { +-- ["png"] = "^" .. string.char(0x89,0x50,0x4E,0x47,0x0D,0x0A,0x1A,0x0A), +-- ["jpg"] = "^" .. string.char(0xFF,0xD8,0xFF), +-- ["jp2"] = "^" .. string.char(0x00,0x00,0x00,0x0C,0x6A,0x50,0x20,0x20,0x0D,0x0A), +-- ["pdf"] = "^" .. ".-%%PDF", +-- } +-- +-- function img.scan(t) +-- if t and t.filename then +-- local f = io.open(t.filename,"rb") +-- if f then +-- local d = f:read(4096) +-- for k, v in next,valid do +-- if string.find(d,v) then +-- f:close() -- be nice +-- return imgscan(t) +-- end +-- end +-- f:close() -- be nice +-- end +-- end +-- end +-- +-- print(img.scan({filename = "hacker1b.tif"})) +-- print(img.scan({filename = "cow.pdf"})) +-- print(img.scan({filename = "mill.png"})) |