• Tal <talgamma gmail.com> Nov 18 2006
• "Lionello Lunesu" <lionello lunesu.remove.com> Nov 18 2006
• Chris Nicholson-Sauls <ibisbasenji gmail.com> Nov 18 2006
• "Chris Miller" <chris dprogramming.com> Nov 18 2006
• %u <talgamma gmail.com> Nov 18 2006

Tal <talgamma gmail.com> writes:

Hello, I'm new to D, my origin is C++.

I want to search for a value in an ini file. I search for the right section,
e.g. "[D]", and then I want to find the variable, like "variable=", and then
change it's value.

This is how I try to do it:

char[] bfr;
bfr = cast(char[]) read (ini_path);
int i = find (bfr,"[D]");
i = find (bfr+i, "Compilator File=");

Since bfr is "char[]" and i is "int" it's erroneous. However none of my trials
to bypass this type-problem were successful.

How do I do it ?

Thanx in advance,
Tal

"Lionello Lunesu" <lionello lunesu.remove.com> writes:

bfr[i..$] will give you the subset from i till (but not including) bft's 
length ($ is short for length).

Chris Nicholson-Sauls <ibisbasenji gmail.com> writes:

Tal wrote:
 Hello, I'm new to D, my origin is C++.
 
 I want to search for a value in an ini file. I search for the right section,
 e.g. "[D]", and then I want to find the variable, like "variable=", and then
 change it's value.
 
 This is how I try to do it:
 
 char[] bfr;
 bfr = cast(char[]) read (ini_path);
 int i = find (bfr,"[D]");
 i = find (bfr+i, "Compilator File=");
 
 Since bfr is "char[]" and i is "int" it's erroneous. However none of my trials
 to bypass this type-problem were successful.
 
 How do I do it ?
 
 Thanx in advance,
 Tal


"Pointer magic" does not apply to D arrays, as they are not just flat pointers,
but a 
structure of a pointer and length.  Assuming your INI requires entities be on a
line 
alone, you could break the string into lines first.  Or, you could use a slice.
 Example:

# char[] bfr ;
# bfr = cast(char[]) read(ini_path);
# int i = find(bfr, "[D]");
# i = find(bfr[i .. $], "Compilator File=");

That said, it might actually be easier to go with lines, or just parse out the
entire 
file, manipulate, and dump back to disc.

-- Chris Nicholson-Sauls

"Chris Miller" <chris dprogramming.com> writes:

On Sat, 18 Nov 2006 15:33:42 -0500, Tal <talgamma gmail.com> wrote:

 char[] bfr;
 bfr =3D cast(char[]) read (ini_path);
 int i =3D find (bfr,"[D]");
 i =3D find (bfr+i, "Compilator File=3D");


Looks like it will also match with:
    [Foo]
    bar=3Dthis [D] is not a section.

but to get a substring:
    bfr[i .. bfr.length]

Note: there is an .ini file module at http://www.dprogramming.com/ini.ph=
p

%u <talgamma gmail.com> writes:

Thanx a lot.