[asterisk-bugs] [JIRA] (ASTERISK-20715) REGEX function ignores shorthand character starting with backslash

[Cam (JIRA)]

Cam created ASTERISK-20715:
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             Summary: REGEX function ignores shorthand character starting with backslash
                 Key: ASTERISK-20715
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20715
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
    Affects Versions: 1.8.18.0
         Environment: Centos Linux 5.8
            Reporter: Cam


The following code fragment SHOULD evaluate to 1 (in variable isittf) but it does not:

exten => s,n,Set(testnum=18005551212)
exten => s,n,Set(tftest=^1?8(00|22|33|44|55|66|77|88)[2-9]\d{6}$)
exten => s,n,Set(isittf=${REGEX("${tftest}" ${testnum})})
exten => s,n,NoOp(Value of isittf is ${isittf})

However if the second line above is changed to:

exten => s,n,Set(tftest=^1?8(00|22|33|44|55|66|77|88)[2-9][0-9]{6}$)

Then it works. It appears that \d or probably any shorthand character starting with a backslash in the REGEX string is ignored, even if first placed in a variable as I have done here.  I did try using a double backslash (\\d) but that did not work either.

If there is a fix for this I would appreciate it if it could be backported to the 1.8 branch.

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