# re_match()

## Purpose

re_match(expr, re)

Returns 1, if expr matches re, 0 otherwise. Uses POSIX ERE. In contrast to re_match_i() the matching is case-sensitive.

Note

Functions using regular expressions tend to be slow and other options may be faster.

## Example

In the following example it is checked if the msg object matches the regex string.

    re_match($msg,'(5[1-5][0-9]{14})')

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