How can I fetch phone numbers from a text file

Question

1.00/5 (1 vote)

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Hi friends,
I have a file with text and numbers in it.
I want to fetch all the contact numbers one by one from that file. (Eg: 91-474-2299, 9999, 2500013) etc...
Is there any way to get it friends,,,
file might be large or medium... or even it can be html files...

Posted 21-Aug-13 22:27pm

Yesudasan Moses

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2 solutions

Solution 1

Your example suggests (I may be wrong) contacts are 'comma separated' hence you could read the file line-by-line and (for each line) obtain the contacts using the comma as separator in the String.Split method.

Posted 21-Aug-13 22:34pm

CPallini

v2

Comments

Yesudasan Moses 22-Aug-13 4:41am

No,,,, I meant Output will be like this....

Yesudasan Moses 22-Aug-13 4:43am

Text maybe like this...
<body>The Number of Thomson will be 1100<br /> and the number of James is 2000</body>
Lke this.... I dont want names, only numbers,,,

CPallini 22-Aug-13 4:46am

Is it an XML file? Why don't you post an exact portion of the input file in your original post?

Yesudasan Moses 22-Aug-13 4:48am

It can be HTML file or text file,,, i dont know,,, :(
what want is to get a number which exceed 4 digits ,,,,

CPallini 22-Aug-13 4:54am

Oh, that's fine. You might use regular expressions. You may even 'handcraft' the line parsing: find a the first digit and then scan successive characters until a non-digit appears.

Maciej Los 22-Aug-13 6:01am

Carlo, i think that Split function is not enough in this case. Please, see my answer.

CPallini 22-Aug-13 7:04am

Well it depends on the OP needs. In a comment above the OP states that 'four or more digits' are enough (however '91-474-2299' would not fit, so I suppose the OP requirements are not clear at all).

Maciej Los 22-Aug-13 7:08am

Ok, thank you for explanation. I got your point of view.
+5!

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Maciej Los · Accepted Answer · 2013-08-21T23:37:00

Solution 2

You can use RegEx class[^] with phone number pattern[^]. But remember, there exist different phone numbers for different countries[^]. For further information, please, see national conventions[^].

So, only one (maybe two) number from this set of numbers: 91-474-2299, 9999, 2500013 could be a phone number. That's why i'm thinking that Split function - in this case - is not enough.

Posted 21-Aug-13 23:37pm

Maciej Los

Updated 22-Aug-13 0:00am

v2

Comments

CPallini 22-Aug-13 7:04am

My 5.

Maciej Los 22-Aug-13 7:09am

Tahnk you, Carlo.