Difference between revisions of "Conversion Module"
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All errors are assigned to the {{Code|http://basex.org/errors}} namespace, which is statically bound to the {{Code|bxerr}} prefix. | All errors are assigned to the {{Code|http://basex.org/errors}} namespace, which is statically bound to the {{Code|bxerr}} prefix. | ||
− | = | + | =Binary Data= |
==convert:to-bytes== | ==convert:to-bytes== | ||
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− | =Numeric | + | =Numeric Data= |
==convert:integer-to-base== | ==convert:integer-to-base== |
Revision as of 02:58, 27 May 2012
This XQuery Module contains functions to convert data between different formats.
Contents
Conventions
All functions in this module are assigned to the http://basex.org/modules/convert
namespace, which is statically bound to the convert
prefix.
All errors are assigned to the http://basex.org/errors
namespace, which is statically bound to the bxerr
prefix.
Binary Data
convert:to-bytes
Signatures | convert:to-bytes($bin as basex:binary) as xs:byte*
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Summary | Extracts the bytes from the given binary data $bin .
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Examples |
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convert:to-string
Signatures | convert:to-string($bytes as basex:binary, $encoding as xs:string) as xs:string
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Summary | Converts the specifed bytes to a string, using the optional $encoding .
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Examples |
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Numeric Data
convert:integer-to-base
Signatures | convert:integer-to-base($num as xs:integer, $base as xs:integer) as xs:string |
Summary | Converts $num to base $base , interpreting it as a 64-bit unsigned integer.The first $base elements of the sequence '0',..,'9','a',..,'z' are used as digits.Valid bases are 2, .., 36 . |
Examples |
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convert:integer-from-base
Signatures | convert:integer-from-base($str as xs:string, $base as xs:integer) as xs:integer |
Summary | Decodes an xs:integer from $str , assuming that it's encoded in base $base .The first $base elements of the sequence '0',..,'9','a',..,'z' are allowed as digits, case doesn't matter. Valid bases are 2, .., 36 .If $str contains more than 64 bits of information, the result is truncated arbitarily.
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Examples |
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Changelog
The module was introduced with Version 7.3.