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Asterisk func regex
Synopsis:
Regular Expression: Returns 1 if data matches regular expression.Description:
REGEX("<regular expression>" <data>)Is the regular expression tied to the beginning of the string?
Notes
- *CLI> show function REGEX
Return value
Returns 1 if data matches regular expression.Example
exten => s,1,Set(foo=${REGEX("[abc0-9]" b4)})— should return 1.
Bugs
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):
what=foo;
dollar=$;
Verbose(${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})})
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