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RegEx for splitting comma delimited text, HOW

Hi

I need to split a comma delimited text, however if the comma is between ' '
then no split should occur

ie:

Class.Value, 'true' , 'some text', 'false', 'text, text, text'

should split into:

Class.Value
'true'
'some text
'false', 'text, text, text'

what split expression should I use for that??

TIA

Søren
May 10 '06 #1
5 2597
SMOlesen wrote:
Hi

I need to split a comma delimited text, however if the comma is between ' '
then no split should occur

ie:

Class.Value, 'true' , 'some text', 'false', 'text, text, text'

should split into:

Class.Value
'true'
'some text
Why should the apostrophe be removed? Or is it a typo?
'false', 'text, text, text'
Why shouldn't it split between 'false' and 'text, text, text'?
what split expression should I use for that??

May 10 '06 #2

Sorry, it was a typo, it should split into:

Class.Value
'true'
'some text'
'false'
'text, text, text'

ie. it shouldn't split on comma if the comma is between two apostrophes....

..NET regular expression.....
"Göran Andersson" <gu***@guffa.co m> wrote in message
news:%2******** ********@TK2MSF TNGP05.phx.gbl. ..
SMOlesen wrote:
Hi

I need to split a comma delimited text, however if the comma is between '
' then no split should occur

ie:

Class.Value, 'true' , 'some text', 'false', 'text, text, text'

should split into:

Class.Value
'true'
'some text


Why should the apostrophe be removed? Or is it a typo?
'false', 'text, text, text'


Why shouldn't it split between 'false' and 'text, text, text'?
what split expression should I use for that??

May 10 '06 #3
Make a pattern that matches one item, something like
"(?:([^,]+|'[^']*')", and use the Matches method to get a collection of
Match items that each contains one item.

SMOlesen wrote:
Sorry, it was a typo, it should split into:

Class.Value
'true'
'some text'
'false'
'text, text, text'

ie. it shouldn't split on comma if the comma is between two apostrophes....

.NET regular expression.....
"Göran Andersson" <gu***@guffa.co m> wrote in message
news:%2******** ********@TK2MSF TNGP05.phx.gbl. ..
SMOlesen wrote:
Hi

I need to split a comma delimited text, however if the comma is between '
' then no split should occur

ie:

Class.Value, 'true' , 'some text', 'false', 'text, text, text'

should split into:

Class.Value
'true'
'some text

Why should the apostrophe be removed? Or is it a typo?
'false', 'text, text, text'

Why shouldn't it split between 'false' and 'text, text, text'?
what split expression should I use for that??


May 10 '06 #4
Hi Göran

Doesn't seem to solve the problem, if I look at the matches I get:

Class.Value
'true'
'some text'
'false'
'text
text
text'

wouldn't I have to use som king of negative lookbehind??

Regards,

Søren

"Göran Andersson" <gu***@guffa.co m> wrote in message
news:eL******** ********@TK2MSF TNGP03.phx.gbl. ..
Make a pattern that matches one item, something like "(?:([^,]+|'[^']*')",
and use the Matches method to get a collection of Match items that each
contains one item.

SMOlesen wrote:
Sorry, it was a typo, it should split into:

Class.Value
'true'
'some text'
'false'
'text, text, text'

ie. it shouldn't split on comma if the comma is between two
apostrophes....

.NET regular expression.....
"Göran Andersson" <gu***@guffa.co m> wrote in message
news:%2******** ********@TK2MSF TNGP05.phx.gbl. ..
SMOlesen wrote:
Hi

I need to split a comma delimited text, however if the comma is between
' ' then no split should occur

ie:

Class.Value, 'true' , 'some text', 'false', 'text, text, text'

should split into:

Class.Value
'true'
'some text
Why should the apostrophe be removed? Or is it a typo?

'false', 'text, text, text'
Why shouldn't it split between 'false' and 'text, text, text'?

what split expression should I use for that??


May 15 '06 #5
When I look at the pattern I gave you, I see that the parantheses
doesn't match, so it won't be usable. How did the pattern look that you
used?

I think that just disallowing apostrophes in the first set will fix it:

"([^',]+|'[^']*')"

Søren M. Olesen wrote:
Hi Göran

Doesn't seem to solve the problem, if I look at the matches I get:

Class.Value
'true'
'some text'
'false'
'text
text
text'

wouldn't I have to use som king of negative lookbehind??

Regards,

Søren

"Göran Andersson" <gu***@guffa.co m> wrote in message
news:eL******** ********@TK2MSF TNGP03.phx.gbl. ..
Make a pattern that matches one item, something like "(?:([^,]+|'[^']*')",
and use the Matches method to get a collection of Match items that each
contains one item.

SMOlesen wrote:
Sorry, it was a typo, it should split into:

Class.Value
'true'
'some text'
'false'
'text, text, text'

ie. it shouldn't split on comma if the comma is between two
apostrophes....

.NET regular expression.....
"Göran Andersson" <gu***@guffa.co m> wrote in message
news:%2******** ********@TK2MSF TNGP05.phx.gbl. ..
SMOlesen wrote:
> Hi
>
> I need to split a comma delimited text, however if the comma is between
> ' ' then no split should occur
>
> ie:
>
> Class.Value, 'true' , 'some text', 'false', 'text, text, text'
>
> should split into:
>
> Class.Value
> 'true'
> 'some text
Why should the apostrophe be removed? Or is it a typo?

> 'false', 'text, text, text'
Why shouldn't it split between 'false' and 'text, text, text'?

> what split expression should I use for that??

May 15 '06 #6

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