Difference between revisions of "X File"

From GiderosMobile
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end</source>
 
end</source>
 
{|-
 
{|-
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=== Methods ===
 
=== Methods ===
[[file:close]] {{<translate>closes file</translate>}}<br/>
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[[file:close]] ''<translate>closes file</translate>''<br/>
[[file:flush]] {{<translate>saves any written data to file</translate>}}<br/>
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[[file:flush]] ''<translate>saves any written data to file</translate>''<br/>
[[file:lines]] {{<translate>returns iterator function to return lines, nil ends</translate>}}<br/>
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[[file:lines]] ''<translate>returns iterator function to return lines, nil ends</translate>''<br/>
[[file:read]] {{<translate>reads file according to given formats, returns read values or nil</translate>}}<br/>
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[[file:read]] ''<translate>reads file according to given formats, returns read values or nil</translate>''<br/>
[[file:seek]] {{<translate>sets file pos, whence="set"|"cur"|"end", defaults "curr",0, returns file pos</translate>}}<br/>
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[[file:seek]] ''<translate>sets file pos, whence="set"|"cur"|"end", defaults "curr",0, returns file pos</translate>''<br/>
[[file:write]] {{<translate>writes strings or numbers to file</translate>}}<br/>
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[[file:write]] ''<translate>writes strings or numbers to file</translate>''<br/>
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=== Events ===
 
=== Events ===
 
=== Constants ===
 
=== Constants ===
 
|}
 
|}

Revision as of 15:30, 23 August 2018

Supported platforms: android, ios, mac, pc
Available since: Gideros 2011.6

Description

file object is usually returned by io.open used to manipulate (read and write) files in lua

Examples

Copy a file

local function copy(src, dst)
	local srcf = io.open(src, "rb")
	local dstf = io.open(dst, "wb")
	local size = 2^13      -- good buffer size (8K)
	while true do
		local block = srcf:read(size)
		if not block then break end
		dstf:write(block)
	end
	srcf:close()
	dstf:close()
end

Methods

File:Close closes file
File:Flush saves any written data to file
File:Lines returns iterator function to return lines, nil ends
File:Read reads file according to given formats, returns read values or nil
File:Seek sets file pos, whence="set"|"cur"|"end", defaults "curr",0, returns file pos
File:Write writes strings or numbers to file

Events

Constants