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$bvar » History » Version 8

Per Amundsen, 01/02/2019 03:34 AM

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_Added in 1.9.0_
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*$bvar(&binvar,N,M)*
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Returns M "ASCII":http://www.asciitable.com/ values from a &binvar starting from the Nth byte.
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_N-N2 can be used to get a range of ASCII values._
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_N- can be used to get all ASCII values from position N._
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*Parameters*
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&binvar - The &binvar to use.
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N - Position to start retrieving bytes.
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M - Numbers of bytes to get.
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*Properties*
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.text - Returns plain text instead of "ASCII":http://www.asciitable.com/ values.
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.word - Outputs decimal value of a 2-byte word, seeing bytes in little-endian byte order (low value first)
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.nword - Outputs decimal value of a 2-byte word, seeing bytes in big-endian byte order (high value first)
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.long - Outputs decimal value of a 4-byte dword (unsigned long), seeing bytes in little-endian byte order (low value first)
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.nlong - Outputs decimal value of a 4-byte dword (unsigned long), seeing bytes in big-endian byte order (high value first)
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*Example*
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<pre>
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; Returns the length of the binary variable.
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//echo -ag $bvar(&binvar,0)        
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; Returns ASCII value at position N.
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//echo -ag $bvar(&binvar,1)
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; Returns ASCII values from 5 to 8.
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//echo -ag $bvar(&binvar,5,3)
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; Returns ASCII values from 5 to end.
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//echo -ag $bvar(&binvar,5-)
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; Returns plain text from 5 to 8 up to the first zero character.
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//echo -ag $bvar(&binvar,5,3).text
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; Returns &binvar if the binvar exists.
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//echo -ag $bvar(&binvar)
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</pre>