Regex repeating capture

[jaylucier]

Howdy,

I'm trying to break an input string into multpile pieces using a
series of delimiters that start with an asterisk. Following the
asterisk is a mulitple character identifier immediately followed by a
data string of variable length. The input string may contain more than
one identifier anywhere in the string.

Here is an example:
*CZ1 2.3 4-56 *fuuuS24364 08 23 72

I'd like to break this into
CZ
1 2.3 4-56
fuuu
S24364 08 23 72

I have tried the pattern (?:\*(CZ|fuuu)( .*)), which produces the
following ouput:
CZ
1 2.3 4-56 *fuuuS24364 08 23 72

How can I force it to repeat the capturing?

Thanks,
Jay

[Peter Bradley]

Use:

public string[] Split (
params char[] separator
)
to split your string on the asterisk as a first step.

Now you can enumerate over the string array splitting out your identifiers
and data strings. You could use a StringBuilder to build what ever you want
to output.

Now you can use:

public bool StartsWith (
string value
)andpublic string Substring (
int startIndex
)e.g.StringBuil der sb = new StringBuilder() ;
foreach (string s in strArray)
{
if (s.StartsWith(" CZ")
{
sb.Append("CZ") ;
sb.Append(s.Sub string(2));
}
else
{
sb.Append("fuuu ");
sb.Append(s.Sub string(4))
}
}

return sb.ToString();

I'm sure there's an easier way using a Regex, but I can't be bothered to
puzzle it out.

HTH
Peter

<ja*******@gmai l.comwrote in message
news:11******** *************@h 3g2000cwc.googl egroups.com...

Howdy,

I'm trying to break an input string into multpile pieces using a
series of delimiters that start with an asterisk. Following the
asterisk is a mulitple character identifier immediately followed by a
data string of variable length. The input string may contain more than
one identifier anywhere in the string.

Here is an example:
*CZ1 2.3 4-56 *fuuuS24364 08 23 72

I'd like to break this into
CZ
1 2.3 4-56
fuuu
S24364 08 23 72

I have tried the pattern (?:\*(CZ|fuuu)( .*)), which produces the
following ouput:
CZ
1 2.3 4-56 *fuuuS24364 08 23 72

How can I force it to repeat the capturing?

Thanks,
Jay

[jaylucier]

Sorry, this was a simple example. In all, there are 50+ identifiers
and * is allowed in that data as long it isn't immediately followed by
an identifier, otherwise it is considered another identifier.

On Jan 30, 11:58 am, "Peter Bradley" <pbrad...@uwic. ac.ukwrote:

Use:

public string[] Split (
params char[] separator
)
to split your string on the asterisk as a first step.

Now you can enumerate over the string array splitting out your identifiers
and data strings. You could use a StringBuilder to build what ever you want
to output.

Now you can use:

public bool StartsWith (
string value
)andpublic string Substring (
int startIndex
)e.g.StringBuil der sb = new StringBuilder() ;
foreach (string s in strArray)
{
if (s.StartsWith(" CZ")
{
sb.Append("CZ") ;
sb.Append(s.Sub string(2));
}
else
{
sb.Append("fuuu ");
sb.Append(s.Sub string(4))
}

}return sb.ToString();

I'm sure there's an easier way using a Regex, but I can't be bothered to
puzzle it out.

HTH

Peter

<jayluc...@gmai l.comwrote in messagenews:11* *************** *****@h3g2000cw c.googlegroups. com...

Howdy,

I'm trying to break an input string into multpile pieces using a
series of delimiters that start with an asterisk. Following the
asterisk is a mulitple character identifier immediately followed by a
data string of variable length. The input string may contain more than
one identifier anywhere in the string.

Here is an example:
*CZ1 2.3 4-56 *fuuuS24364 08 23 72

I'd like to break this into
CZ
1 2.3 4-56
fuuu
S24364 08 23 72

I have tried the pattern (?:\*(CZ|fuuu)( .*)), which produces the
following ouput:
CZ
1 2.3 4-56 *fuuuS24364 08 23 72

How can I force it to repeat the capturing?

Thanks,
Jay

[Mythran]

<ja*******@gmai l.comwrote in message
news:11******** *************@h 3g2000cwc.googl egroups.com...

Howdy,

I'm trying to break an input string into multpile pieces using a
series of delimiters that start with an asterisk. Following the
asterisk is a mulitple character identifier immediately followed by a
data string of variable length. The input string may contain more than
one identifier anywhere in the string.

Here is an example:
*CZ1 2.3 4-56 *fuuuS24364 08 23 72

I'd like to break this into
CZ
1 2.3 4-56
fuuu
S24364 08 23 72

I have tried the pattern (?:\*(CZ|fuuu)( .*)), which produces the
following ouput:
CZ
1 2.3 4-56 *fuuuS24364 08 23 72

How can I force it to repeat the capturing?

Thanks,
Jay

So, to split based on an * using a regular expression:

string pattern = @"\*(?<Text>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(match.Groups["Text"].Value);
match = match.NextMatch ();
}

HTH,
Mythran

[Mythran]

"Mythran" <ki********@hot mail.comwrote in message
news:40******** *************** ***********@mic rosoft.com...

>

<ja*******@gmai l.comwrote in message
news:11******** *************@h 3g2000cwc.googl egroups.com...

>Howdy,

I'm trying to break an input string into multpile pieces using a
series of delimiters that start with an asterisk. Following the
asterisk is a mulitple character identifier immediately followed by a
data string of variable length. The input string may contain more than
one identifier anywhere in the string.

Here is an example:
*CZ1 2.3 4-56 *fuuuS24364 08 23 72

I'd like to break this into
CZ
1 2.3 4-56
fuuu
S24364 08 23 72

I have tried the pattern (?:\*(CZ|fuuu)( .*)), which produces the
following ouput:
CZ
1 2.3 4-56 *fuuuS24364 08 23 72

How can I force it to repeat the capturing?

Thanks,
Jay

So, to split based on an * using a regular expression:

string pattern = @"\*(?<Text>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(match.Groups["Text"].Value);
match = match.NextMatch ();
}

HTH,
Mythran

ahh, I didn't know you wanted to break it out into identifier, text,
identifier, text...thus the previous post should be obliterated :P...do you
know if the identifier is always 4 characters? Hope so, the following
example shows how to achieve this:

string pattern = @"\*(?<Identifi er>.{4})(?<Valu e>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(
"Identifier : {0} - Value: {1}",
match.Groups["Identifier "].Value,
match.Groups["Value"].Value
);
match = match.NextMatch ();
}

HTH,
Mythran

[Jay]

The identifier is at least 2 character, but has no upper limit.
Thanks,
Jay

On Jan 30, 12:36 pm, "Mythran" <kip_pot...@hot mail.comwrote:

"Mythran" <kip_pot...@hot mail.comwrote in messagenews:40* *************** *************** ***@microsoft.c om...

<jayluc...@gmai l.comwrote in message
news:11******** *************@h 3g2000cwc.googl egroups.com...

Howdy,

I'm trying to break an input string into multpile pieces using a
series of delimiters that start with an asterisk. Following the
asterisk is a mulitple character identifier immediately followed by a
data string of variable length. The input string may contain more than
one identifier anywhere in the string.

Here is an example:
*CZ1 2.3 4-56 *fuuuS24364 08 23 72

I'd like to break this into
CZ
1 2.3 4-56
fuuu
S24364 08 23 72

I have tried the pattern (?:\*(CZ|fuuu)( .*)), which produces the
following ouput:
CZ
1 2.3 4-56 *fuuuS24364 08 23 72

How can I force it to repeat the capturing?

Thanks,
Jay

So, to split based on an * using a regular expression:

string pattern = @"\*(?<Text>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(match.Groups["Text"].Value);
match = match.NextMatch ();
}

HTH,
Mythranahh, I didn't know you wanted to break it out into identifier, text,

identifier, text...thus the previous post should be obliterated :P...do you
know if the identifier is always 4 characters? Hope so, the following
example shows how to achieve this:

string pattern = @"\*(?<Identifi er>.{4})(?<Valu e>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(
"Identifier : {0} - Value: {1}",
match.Groups["Identifier "].Value,
match.Groups["Value"].Value
);
match = match.NextMatch ();

}HTH,
Mythran

[Jay]

I know what the identifiers are, so I'm okay with replacing the .{4}
with (Identifier1|Id entifier2|...|I dentifierN) at run time. However, I
cannot blindly end the data capture on an asterisk. "*CZ1 2.3 4*A56
*fuuuS24364 08 23 72" is also valid provide *A6 is not a valid
identifier. The data capture can only end if it encounters another
valid identifier.

On Jan 30, 12:52 pm, "Jay" <JaythePC...@gm ail.comwrote:

The identifier is at least 2 character, but has no upper limit.

Thanks,
Jay

On Jan 30, 12:36 pm, "Mythran" <kip_pot...@hot mail.comwrote:

"Mythran" <kip_pot...@hot mail.comwrote in messagenews:40* *************** *************** ***@microsoft.c om...

<jayluc...@gmai l.comwrote in message
>news:11******* **************@ h3g2000cwc.goog legroups.com...
>Howdy,

>I'm trying to break an input string into multpile pieces using a
>series of delimiters that start with an asterisk. Following the
>asterisk is a mulitple character identifier immediately followed by a
>data string of variable length. The input string may contain more than
>one identifier anywhere in the string.

>Here is an example:
>*CZ1 2.3 4-56 *fuuuS24364 08 23 72

>I'd like to break this into
>CZ
>1 2.3 4-56
>fuuu
>S24364 08 23 72

>I have tried the pattern (?:\*(CZ|fuuu)( .*)), which produces the
>following ouput:
>CZ
>1 2.3 4-56 *fuuuS24364 08 23 72

>How can I force it to repeat the capturing?

>Thanks,
>Jay

So, to split based on an * using a regular expression:

string pattern = @"\*(?<Text>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(match.Groups["Text"].Value);
match = match.NextMatch ();
}

HTH,
Mythranahh, I didn't know you wanted to break it out into identifier, text,

identifier, text...thus the previous post should be obliterated :P...do you
know if the identifier is always 4 characters? Hope so, the following
example shows how to achieve this:

string pattern = @"\*(?<Identifi er>.{4})(?<Valu e>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(
"Identifier : {0} - Value: {1}",
match.Groups["Identifier "].Value,
match.Groups["Value"].Value
);
match = match.NextMatch ();

}HTH,
Mythran

[Mythran]

"Jay" <Ja*********@gm ail.comwrote in message
news:11******** **************@ p10g2000cwp.goo glegroups.com.. .

>I know what the identifiers are, so I'm okay with replacing the .{4}
with (Identifier1|Id entifier2|...|I dentifierN) at run time. However, I
cannot blindly end the data capture on an asterisk. "*CZ1 2.3 4*A56
*fuuuS24364 08 23 72" is also valid provide *A6 is not a valid
identifier. The data capture can only end if it encounters another
valid identifier.

On Jan 30, 12:52 pm, "Jay" <JaythePC...@gm ail.comwrote:

>The identifier is at least 2 character, but has no upper limit.

Thanks,
Jay

On Jan 30, 12:36 pm, "Mythran" <kip_pot...@hot mail.comwrote:

"Mythran" <kip_pot...@hot mail.comwrote in
messagenews:40* *************** *************** ***@microsoft.c om...

<jayluc...@gmai l.comwrote in message
news:11******* **************@ h3g2000cwc.goog legroups.com...
Howdy,

>I'm trying to break an input string into multpile pieces using a
series of delimiters that start with an asterisk. Following the
asterisk is a mulitple character identifier immediately followed by
a
data string of variable length. The input string may contain more
than
one identifier anywhere in the string.

>Here is an example:
*CZ1 2.3 4-56 *fuuuS24364 08 23 72

>I'd like to break this into
CZ
1 2.3 4-56
fuuu
S24364 08 23 72

>I have tried the pattern (?:\*(CZ|fuuu)( .*)), which produces the
following ouput:
CZ
1 2.3 4-56 *fuuuS24364 08 23 72

>How can I force it to repeat the capturing?

>Thanks,
Jay

So, to split based on an * using a regular expression:

string pattern = @"\*(?<Text>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(match.Groups["Text"].Value);
match = match.NextMatch ();
}

HTH,
Mythranahh, I didn't know you wanted to break it out into identifier,
text,
identifier, text...thus the previous post should be obliterated :P...do
you
know if the identifier is always 4 characters? Hope so, the following
example shows how to achieve this:

string pattern = @"\*(?<Identifi er>.{4})(?<Valu e>[^\*]+)";
string input = "*CZ1 2.3 4-56 *fuuuS24364 08 23 72";
Match match = Regex.Match(inp ut, pattern);

while (match.Success) {
Console.WriteLi ne(
"Identifier : {0} - Value: {1}",
match.Groups["Identifier "].Value,
match.Groups["Value"].Value
);
match = match.NextMatch ();

}HTH,
Mythran

How many identifiers are there? If there are a small list (say, less than
10ish), then you can use the regex OR character '|' in the pattern to
separate the list of valid identifiers instead of matching on the asterisk
itself.

HTH,
Mythran