Asterisk func regex


Regular Expression: Returns 1 if data matches regular expression.


REGEX("<regular expression>" <data>)

Is the regular expression tied to the beginning of the string?


  • *CLI> show function REGEX

Return value

Returns 1 if data matches regular expression.


exten => s,1,Set(foo=${REGEX("[abc0-9]" b4)})
— should return 1.


The 1.2.10 parser can easily get confused by special characters in your regexp, such as curly braces or the $ anchor. If you suspect that this is the case, put your special characters in a variable as a workaround (ael1 syntax):
Verbose(${REGEX("^foo$" foo)}); // 1
Verbose(${REGEX("^foo$" ${what})}); // 0
Verbose(${REGEX("^foo${dollar}" ${what})}); // 1

In addition, the comma character will be replaced with a pipe character inside the regular expression as follows:
Verbose(${REGEX("^[0-9]\{10,15\}$" ${telnum})})
will actually be parsed as:
Verbose(${REGEX("^[0-9]\{10|15\}$" ${telnum})})
To correct this, escape the comma as follows:
Verbose(${REGEX("^[0-9]\{10\,15\}$" ${telnum})})

See also

External Links

Unix Regular Expressions

Created by: murf, Last modification: Fri 05 of Nov, 2010 (16:26) by admin
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