String Parsing

[Bob Davis]

In C# one can construct a string using the format method.

for example

string newstring = string.Format("CC%d-%s.%d-%s-%
d",123,"aaaa",456,"bbb",789);

The resulting newstring will be "CC123-aaa.456-bbb-789"

The question I have is, given the newstring and the
format how do I extract the parse out the different
elements.

Thanks,
Bob

[Mattias Sjögren]

Bob,

string newstring = string.Format("CC%d-%s.%d-%s-%
d",123,"aaaa",456,"bbb",789);
That looks more like a C printf style fromat string than a .NET one.

The resulting newstring will be "CC123-aaa.456-bbb-789"

The question I have is, given the newstring and the
format how do I extract the parse out the different
elements.

That would be non-trivial to do (if not impossible). If it's doable
depends on what kind of input you support. You'd have to do the
parsing yourself one way or another.

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

[Shiv Kumar]

In this particular case you dhuld br able to use the String.Split method to
back back an array like

CC123
aaa
456
bbb
789

Of course I don't see the big picture so I can't give you a generic solution
:)
--
Shiv R. Kumar
http://www.matlus.com

[Bob Davis]

Mattias,

You are correct it is a printf style format, string class
in .Net provides a static member called "Format" that
enables the developers to format the way I mentioned
below.

I have come to the same conclusion, but before I go and
code I wanted to double check.

Thanks

-----Original Message-----
Bob,

string newstring = string.Format("CC%d-%s.%d-%s-%
d",123,"aaaa",456,"bbb",789);
That looks more like a C printf style fromat string than

a .NET one.

The resulting newstring will be "CC123-aaa.456-bbb-789"

The question I have is, given the newstring and the
format how do I extract the parse out the different
elements.
That would be non-trivial to do (if not impossible). If

it's doabledepends on what kind of input you support. You'd have to do theparsing yourself one way or another.

Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.comPlease reply only to the newsgroup.
.

[Bob Davis]

Shiv,

Split works if there is delimiter between the various
components of the string.

string newstring = string.Format("CC%d-%s.%d-%s-%
d",123,"aaaa",456,"bbb",789); The resulting newstring will be "CC123-aaa.456-bbb-789"

In this case there is no delimiter between CC and 123 and
so split fails.

I am looking for scanf type functionality, looks like I
will have the string myself.

Thanks and appreciate your help.
Bob
-----Original Message-----
In this particular case you dhuld br able to use the String.Split method toback back an array like

CC123
aaa
456
bbb
789

Of course I don't see the big picture so I can't give you a generic solution:)
--
Shiv R. Kumar
http://www.matlus.com
.

[phoenix]

You could try using regex. If you have your input format you 'just' need to
convert it to accepted regex format.

string newstring = "CC123-aaa.456-bbb-789";
GroupCollection gc = Regex.Match(newstring,
@"CC(\d+)-(\w+).(\d+)-(\w+)-(\d+)").Groups;

for (int i = 1; i < gc.Count; i++)
Console.WriteLine("Group {0} : {1}", i, gc[i].ToString());

Yves

"Bob Davis" <an*******@discussions.microsoft.com> schreef in bericht
news:0e****************************@phx.gbl...

In C# one can construct a string using the format method.

for example

string newstring = string.Format("CC%d-%s.%d-%s-%
d",123,"aaaa",456,"bbb",789);

The resulting newstring will be "CC123-aaa.456-bbb-789"

The question I have is, given the newstring and the
format how do I extract the parse out the different
elements.

Thanks,
Bob

[Jon Skeet [C# MVP]]

Bob Davis <an*******@discussions.microsoft.com> wrote:

You are correct it is a printf style format, string class
in .Net provides a static member called "Format" that
enables the developers to format the way I mentioned
below.

No it doesn't. It enables developers for format with

"CC{0}-{1}.{2}-{3}-{4}", 123, "aaaa", 456, "bbb", 789"

which I believe was Mattias' point.

As for the parsing - a regular expression may well do it for you.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Bob Davis]

Thanks everyone for your input.

Bob

-----Original Message-----
You could try using regex. If you have your input format you 'just' need toconvert it to accepted regex format.

string newstring = "CC123-aaa.456-bbb-789";
GroupCollection gc = Regex.Match(newstring,
@"CC(\d+)-(\w+).(\d+)-(\w+)-(\d+)").Groups;

for (int i = 1; i < gc.Count; i++)
Console.WriteLine("Group {0} : {1}", i, gc [i].ToString());
Yves

"Bob Davis" <an*******@discussions.microsoft.com> schreef in berichtnews:0e****************************@phx.gbl...

In C# one can construct a string using the format method.
for example

string newstring = string.Format("CC%d-%s.%d-%s-%
d",123,"aaaa",456,"bbb",789);

The resulting newstring will be "CC123-aaa.456-bbb-789"

The question I have is, given the newstring and the
format how do I extract the parse out the different
elements.

Thanks,
Bob

.

[Shiv Kumar]

Sorry, I misunderstood. I thought the "-" were the delimiters :)

--
Shiv R. Kumar
http://www.matlus.com