substring

[Johannes Breu]

Hello,

I have problems with substring or I don´t get the definition.
*
substring(string, index)*
Returns a substring of *string* that begins at *index* and extends to the
end of *string*.

Assume that this is dir: C:\Dokumente und Einstellungen\Johannes Breu\Eigene
Dateien\Platz\Images\IN12/Image0006.tif

               m=dir;
              u="Images";
              n=substring (m,u);
              print(n);

Now I expect n=Images\IN12/Image0006.tif

Instead of this I get an error message:
n=substring (m,u<)>;

What´s wrong?

[Gabriel Landini]

On Wednesday 01 October 2008 16:57:10 Johannes Breu wrote:

> Hello,
>
> I have problems with substring or I don´t get the definition.
> *
> substring(string, index)*
> Returns a substring of *string* that begins at *index* and extends to the
> end of *string*.
>
> Assume that this is dir: C:\Dokumente und Einstellungen\Johannes
> Breu\Eigene Dateien\Platz\Images\IN12/Image0006.tif
>
>                m=dir;
>               u="Images";
>               n=substring (m,u);
>               print(n);
>
> Now I expect n=Images\IN12/Image0006.tif
>
> Instead of this I get an error message:
> n=substring (m,u<)>;
>
> What´s wrong?

'u' is not a number?

G

[Michael Schmid]

Hi Johannes,

it should be:

               m=dir;
               u="Images";
               uIndex = indexOf(m,u);
               if (uIndex<0) exit("Error: Directory name does not  
contain "+u);
               n=substring (m,uIndex);
               print(n);

Michael
________________________________________________________________

On 1 Oct 2008, at 17:57, Johannes Breu wrote:

> Hello,
>
> I have problems with substring or I don´t get the definition.
> *
> substring(string, index)*
> Returns a substring of *string* that begins at *index* and extends  
> to the
> end of *string*.
>
> Assume that this is dir: C:\Dokumente und Einstellungen\Johannes  
> Breu\Eigene
> Dateien\Platz\Images\IN12/Image0006.tif
>
>                m=dir;
>               u="Images";
>               n=substring (m,u);
>               print(n);
>
> Now I expect n=Images\IN12/Image0006.tif
>
> Instead of this I get an error message:
> n=substring (m,u<)>;
>
> What´s wrong?

[Ben Tupper]

Hi,

On Oct 1, 2008, at 11:57 AM, Johannes Breu wrote:

> Hello,
>
> I have problems with substring or I don´t get the definition.
> *
> substring(string, index)*
> Returns a substring of *string* that begins at *index* and extends  
> to the
> end of *string*.
>

The index value must be a zero-based position for the substring to  
begin.  I think you want to add a step using indexOf()


str = "C:\Dokumente und Einstellungen\Johannes Breu\Eigene Dateien
\Platz\Images\IN12/Image0006.tif";
ix = indexOf(str, "Images");
n = substring(str, ix);
print(n);

I just noticed that on my Mac OSX (ImageJ 1.41) the forward slash  
disappears but it might work on you Windows machine just fine.

Cheers,
Ben

> Assume that this is dir: C:\Dokumente und Einstellungen\Johannes  
> Breu\Eigene
> Dateien\Platz\Images\IN12/Image0006.tif
>
>                m=dir;
>               u="Images";
>               n=substring (m,u);
>               print(n);
>
> Now I expect n=Images\IN12/Image0006.tif
>
> Instead of this I get an error message:
> n=substring (m,u<)>;
>
> What´s wrong?

[Gluender-2]

>Hello,
>
>I have problems with substring or I don´t get the definition.
>*
>substring(string, index)*
>Returns a substring of *string* that begins at *index* and extends to the
>end of *string*.
>
>Assume that this is dir: C:\Dokumente und Einstellungen\Johannes Breu\Eigene
>Dateien\Platz\Images\IN12/Image0006.tif
>
>                m=dir;
>               u="Images";
>               n=substring (m,u);
>               print(n);
>
>Now I expect n=Images\IN12/Image0006.tif
>
>Instead of this I get an error message:
>n=substring (m,u<)>;
>
>What´s wrong?

Just read the current manual "Built-in Macro Functions " carefully:

substring(string, index1, index2)
Returns a new string that is a substring of string.
The subegins at index1 and extends to the character at index2 .

HTH
--

                   Herbie

          ------------------------
          <http://www.gluender.de>

[Gluender-2]

>str = "C:\Dokumente und Einstellungen\Johannes Breu\Eigene
>Dateien\Platz\Images\IN12/Image0006.tif";
>ix = indexOf(str, "Images");
>n = substring(str, ix);
>print(n);
>
>I just noticed that on my Mac OSX (ImageJ 1.41) the forward slash
>disappears but it might work on you Windows machine just fine.
>
>Cheers,
>Ben

For me, the backward slashes disappear with OSX...

(C:Dokumente und EinstellungenJohannes BreuEigene
DateienPlatzImagesIN12/Image0006.tif)

Best
--

                   Herbie

          ------------------------
          <http://www.gluender.de>

[Dale J Martin]

Hi all,

Has anyone developed a Richardson-Lucy Plugin?

Regards,

Dale