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************
re_match_i()
************
Purpose
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re_match_i(expr, re)
Returns 1, if expr matches re, 0 otherwise. Uses POSIX ERE. In contrast to
`re_match()` the matching is case-insensitive.
.. note::
Functions using regular expressions tend to be slow and other options
may be faster.
Example
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In the following example it is checked if the msg object matches the regex string.
.. code-block:: none
re_match($msg,'TesT')
It matches it the message "Test", in any case ("TEST", "tEst", ...)
is contained in msg property.
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