Code Snippets

Create a bzip2 or gzip file

Verified

Added by iNTERFACEWARE

How to create and unzip a bzip2 or gzip file, using filter.bzip2.deflate() and filter.bzip2.inflate() or gzip.deflate() and gzip.inflate()

Source Code

   -- create a bzip2 file from a string

   -- construct a test string to be compressed
   local  S = 'Replace this string with your own data, or read it in from a file'
   trace(S)
   
   -- gzip the file into a string
   local zip = filter.bzip2.deflate(S)
   trace(zip)
   
   -- unzip the file from the string
   local unzip = filter.bzip2.inflate(zip)
   trace(unzip)
   
   -- save the file to disk 
   local f = io.open('test_bzip2.zip', 'w')
   f:write(zip)
   f:close()
   
   -- go to the Iguana home directory and run 'test_bzip2.zip'
   
   -- create a gzip file from a string
   
   -- gzip the file into a string
   local zip = filter.gzip.deflate(S)
   trace(zip)
   
   -- unzip the file from the string
   local unzip = filter.gzip.inflate(zip)
   trace(unzip)
   
   -- save the file to disk 
   local f = io.open('test_gzip.zip', 'w')
   f:write(zip)
   f:close()
   
   -- go to the Iguana home directory and run 'test_gzip.zip'

Description

How to create and unzip a bzip2 or gzip file, using filter.bzip2.deflate() and filter.bzip2.inflate() or gzip.deflate() and gzip.inflate()

Usage Details

Demonstrates how to convert the contents of an Iguana table into a bzip2 or gzip file, using filter.bzip2.deflate() or filter.gzip.deflate(). It also shows how to unzip the file using filter.bzip2.inflate() or filter.gzip.inflate().

How to use the snippet:

Paste the code into your script
Inspect the annotations to see how it works
Unzip the test_bzip2.zip file that is created in the Iguana install directory
Unzip the test_gzip.zip file that is created in the Iguana install directory

More Information

• filter.bzip2.deflate
• filter.bzip2.inflate
• filter.gzip.deflate
• filter.gzip.inflate
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Code Repository

Create a bzip2 or gzip file