$Inflate: Difference between revisions
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==Usage== | ==Usage== | ||
<ul> | <ul> | ||
<li> If the input string is not a valid deflated string, the request is cancelled. | <li> If the input string is not a valid deflated string, the request is cancelled. | ||
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</ul> | </ul> | ||
==Examples== | |||
In the following example, %LSTR is set to the uncompressed version of the given string: | In the following example, %LSTR is set to the uncompressed version of the given string: | ||
<p class="code"> %LSTRC = $Deflate('How much wood could a woodchuck chuck', | <p class="code"> %LSTRC = $Deflate('How much wood could a woodchuck chuck', 'FIXED') | ||
%LSTR = $Inflate(%LSTRC) | %LSTR = $Inflate(%LSTRC) | ||
</p> | </p> |
Revision as of 21:20, 1 February 2011
<section begin="desc" />Decompress a longstring with inflate<section end="desc" />
Most Sirius $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $Inflate function is the Inflate (String function).
This function takes a deflated longstring input and decompresses it using the "inflate" algorithm. The inflate algorithm is described as part of the deflate specification in RFC 1951.
The $Inflate function accepts one argument and returns a longstring result. The argument is the longstring to be decompressed, and it is required.
Syntax
<section begin="syntax" /> %LSTRC = $Inflate(%lstr, option) <section end="syntax" />
Usage
- If the input string is not a valid deflated string, the request is cancelled.
- If compression is not enabled for the current run, the request is cancelled.
- The NCMPBUF parameter must be set by User 0 before the $Inflate function can be used. If $Inflate is called with NCMPBUF = 0, the request is cancelled.
- As with any compression scheme, it is possible that a particular string will become longer after compression. This would happen, for example, if a deflated string were passed to $Deflate .
Examples
In the following example, %LSTR is set to the uncompressed version of the given string:
%LSTRC = $Deflate('How much wood could a woodchuck chuck', 'FIXED') %LSTR = $Inflate(%LSTRC)