How to extract a string from a file in C

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I want to extract a line from a string which read from a file.

This is the line from a text "N0010 (TOOL NAME: BA6)"
So i just want to extract last "BA6" in a character string.

How do I do it?

What I have tried:

while(!feof(fp))
{
    fgets(fline,200,fp);

    if(strstr(fline,"TOOL NAME:")!=NULL)
    sscanf(fline,"N0010 TOOL NAME:%s",tname);

    if(strstr(fline,"TOOL DIAMETER:")!=NULL)
    sscanf(fline,"N0020 TOOL DIAMETER:%s",tdia);

    if(strstr(fline,"TOOL RADIUS:")!=NULL)
    sscanf(fline,"N0030 TOOL RADIUS:%s",trad);

    if(strstr(fline,"STOCK_PART:")!=NULL)
    sscanf(fline,"N0040 STOCK_PART:%s",spart);
}
  fclose(fp);

Posted 9-Jan-20 0:13am

Member 14630688

Updated 9-Jan-20 1:32am

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CPallini · Accepted Answer · 2020-01-09T01:33:00

Solution 1

How on earth

Quote:
scanf(fline,"N0010 TOOL NAME:%s",tname);

could possibly match with

Quote:
N0010 (TOOL NAME: BA6)

(Hint: round braces).

Posted 9-Jan-20 1:33am

CPallini

Comments

Shao Voon Wong 10-Jan-20 6:10am

5

CPallini 10-Jan-20 6:33am

Thank you.

Member 14630688 13-Jan-20 0:16am

I tried doing this. sscanf(fline,"N0010 (TOOL NAME: %s)",tname);

The actual line in text is 'N0010 (TOOL NAME: 10R1)'

In tname I get "10R1)" I dont want the last brace ')' I just want output to be '10R1'

CPallini 13-Jan-20 3:04am

Yes, sscanf with %s stops only at first whitespace character.
You might try instead:

sscanf(fline,"N0010 (TOOL NAME: %[^)]",tname)

See:
http://www.cplusplus.com/reference/cstdio/scanf/