Problems doing sscanf() on strings

[jorba101]

I'm having following trouble:

I'm reading contents of a string retrieved from a CSV-like file with sscanf, in following way:

sscanf( originalString, "%d,%s,%s", &myInteger, myString1, myString2 );

originalString contents are something like:

char originalString[]="1,my text here 1,my text here  2";

I'm correctly getting myInteger, but instead of getting "my text here 1" and "my text here 2" in myString1 and myString2 respectively, I'm getting a non-null terminated string in myString1, which contains both textes. myString2 becomes unmodified in sscanf.

I guess that sscanf can't distinguish the comma while it is reading a %s string, and I don't know why it is not placing a '\0' (%s should tell it I want to get a string, not an array of chars).

Does anybody know how to workaround this issue, according to my input string originalString[]?

[gpraghuram]

The problem is using , along with format specifiers..
Try to tokenize the string using strtok and get the strings separately.

Raghuram

[jorba101]

Thanks for your answer,

I've parallelly looked for a solution:

First, some comments on my post.

In first place:

My code in the post was not really the one I was testing, and it affects the result. The thing is that, according to [http://www.acm.uiuc.edu/webmonkeys/book/c_guide/2.12.html#scanf], any whitespace char (like space) is considered a separator when you do a scanf on "%s", so it will never be taken into "%s"

The solution has been, as you suggest, parsing the string in a different way. Instead of using strtok (which has a pretty weird output), i've parsed the string myself (yes, I know it won't be as optimal as using asm-coded string.a files, but maybe more clear to me). I paste here the function I wrote, tested working OK, just if becomes useful to anybody:

T_s32
getStringFromCsvLine( T_u8 *csvLine, T_u8 *outputString, T_u32 fieldNo, T_u8 separator )
{
    T_u32    lineLength;
    T_u32    i_u32, j_u32, k_u32;
    T_u32    fieldFound;
 
    lineLength = strlen( csvLine );
 
        // reset field counter
    j_u32 = 0;
 
        // reset current char in output string being filled
    k_u32 = 0;
 
    fieldFound = 0;
 
    for( i_u32 = 0;
        i_u32 < lineLength;
        i_u32++ )
    {
        if( csvLine[ i_u32 ] == separator )
        {
            j_u32++;
            continue;
        }
 
        if( j_u32 == fieldNo )
        {
            fieldFound = 1;
 
            outputString[ k_u32 ] = csvLine[ i_u32 ];
 
            k_u32++;
        }
    }
 
    if( fieldFound )
    {
        outputString[ k_u32 ] = '\0';
        return 0;
    }
 
    return 1;
}

Of course any comments or suggestions on this code are welcome.

Thanks again.-