regex help?

[tomo]

Can someone please write me regex for which this string will have a
match.Thanks.

12.333,55
12.444.444,55
15.444.444.,55



__________ Information from ESET NOD32 Antivirus, version of virus signature database 4640 (20091126) __________

The message was checked by ESET NOD32 Antivirus.

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[Tim Slattery]

Can someone please write me regex for which this string will have a
match.Thanks.

12.333,55
12.444.444,55
15.444.444.,55

/(\d{1,3}.)*,\d{2}/

 

[Evertjan.]

Tim Slattery wrote on 03 dec 2009 in comp.lang.javascript:

/(\d{1,3}.)*,\d{2}/

No, this will not match the first two strings.

/.*/ would do better and simpler.

For specifieing a regex match you would need inclusion as well as exclusion
criteria, which the OP did not provide us with.

 

[Thomas 'PointedEars' Lahn]

Can someone please write me regex for which this string will have a
match.Thanks.

12.333,55
12.444.444,55
15.444.444.,55

man 1 txt2regex


PointedEars

 

[Tim Slattery]

Tim Slattery wrote on 03 dec 2009 in comp.lang.javascript:


No, this will not match the first two strings.

Nuts, you're right! It's going to insist on a period before the comma.

/.*/ would do better and simpler.

But it wouldn't restrict it to digits, nor would it enforce the
groups. We could do:

/(\d{1,3}.?)*,\d{2}/

But that would allow long strings of digits without any punctuation.

 

[Thomas 'PointedEars' Lahn]

Nuts, you're right! It's going to insist on a period before the comma.

Exactly

But it wouldn't restrict it to digits, nor would it enforce the
groups.

Given the specifications, it does not need to.

We could do:

/(\d{1,3}.?)*,\d{2}/

But that would allow long strings of digits without any punctuation.

OK, this is probably homework, but I'll bite:

/1[25](\.[34]{3}){1,2}\.?,55/

Hopefully somebody can learn something from that ;-)


PointedEars

 

[Tim Slattery]

Nuts, you're right! It's going to insist on a period before the comma.

OK, assuming OP wanted to match strings of digits broken into groups
of 3 by dots, optionally followed by a comma then two digits:

(\\d{1,3})(\\.\\d{3})*(\\,\\d{2})?

For US numeric punctuation (12,345.67):

(\\d{1,3})(\\,\\d{3})*(\\.\\d{2})?

 

[Thomas 'PointedEars' Lahn]

It's a mystery to me too, but it wouldn't work without it.

Yes, it would.


PointedEars

 

[Tim Slattery]

That would only work if it would be passed as content of a string value
to RegExp(). But since there is no variable part in it, RegExp() is
unnecessary, a RegExp initializer /.../ suffices (and you must not escape
the escaping backslash there).

Whether you try to escape the comma remains a mystery, too.

It's a mystery to me too, but it wouldn't work without it.

 

[Thomas 'PointedEars' Lahn]

OK, assuming OP wanted to match strings of digits broken into groups
of 3 by dots, optionally followed by a comma then two digits:

(\\d{1,3})(\\.\\d{3})*(\\,\\d{2})?

For US numeric punctuation (12,345.67):

(\\d{1,3})(\\,\\d{3})*(\\.\\d{2})?

That would only work if it would be passed as content of a string value
to RegExp(). But since there is no variable part in it, RegExp() is
unnecessary, a RegExp initializer /.../ suffices (and you must not escape
the escaping backslash there).

Whether you try to escape the comma remains a mystery, too.

RTFM.


PointedEars

 

[Evertjan.]

Tim Slattery wrote on 04 dec 2009 in comp.lang.javascript:

It's a mystery to me too, but it wouldn't work without it.

The weather will always remain a mystery to,
it's raining cats and dogs,
and my dog needs to go outside NOW.