Difference between revisions of "File.skip"

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== Example Usage ==
+
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+
h = sl.file(getinstalldir()..'scripts/testread.dat', 'read')
+
local j = h.skip(4) -- skip first four stored values
+
print(tostring(j))
+
local val = true
+
while val ~= nil and val ~= 'EOF' do
+
  val = h.readnext()
+
  if val == sl.null then val = 'null' end
+
  if val == sl.EOF then val = 'EOF' end
+
  print('val : '..tostring(val))
+
end
+
 
+
--> true
+
    val : 30
+
    val : TEST_
+
    val : true
+
    val : false
+
    val : null
+
    val : true
+
    val : 3.141622e-030
+
    val : table: 0x011da540
+
    val : EOF
+
  
 
== Description ==
 
== Description ==

Revision as of 10:31, 15 December 2011

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Description

Skip jumps over the number of stored values specified by argument n. A positive n seeks from the current read location towards the end of the file, and negative n seeks towards the beginning of the file. If either the beginning or the end of the file is reached, EOF is returned.

Upon Error

Skip returns nil if there is a problem seeking over the file.

See Also