C Language, Help with string

Help with string

Author	Message
Miha Andrejasi #1 / 3	Help with string Hello! I would like to extract letters from files. I am using: sscanf (line, "%4c", atoms[total_lines].name); atoms[total_lines].element[0] = atoms[total_lines].name[0]; if (isalpha(atoms[total_lines].name[1])) { atoms[total_lines].element[1] = atoms[total_lines].name[1]; atoms[total_lines].element[2] = '\0'; } else { atoms[total_lines].element[1] = '\0'; } Now I have a problem. Second leter can be capital or small. CA or Ni. I must read only those with small second letter. Help please CCCao -- miha
Sun, 27 Jun 2004 21:50:05 GMT

Gregory Pietsc #2 / 3	Help with string Quote: > Hello! > I would like to extract letters from files. I am using: > sscanf (line, "%4c", atoms[total_lines].name); > atoms[total_lines].element[0] = atoms[total_lines].name[0]; > if (isalpha(atoms[total_lines].name[1])) { > atoms[total_lines].element[1] = atoms[total_lines].name[1]; > atoms[total_lines].element[2] = '\0'; > } else { > atoms[total_lines].element[1] = '\0'; > } > Now I have a problem. Second leter can be capital or small. CA or Ni. I > must read only those with small second letter. > Help please > CCCao > -- > miha Hint: There are two functions to test the case of a letter in C: isupper() and islower(), both in <ctype.h>. Both of them are locale-dependent, though, and I don't know where you're posting from. But they are guaranteed to work on the letters of the English alphabet at the very least in the C locale. Gregory Pietsch
Sun, 27 Jun 2004 23:11:18 GMT

Mike Wahle #3 / 3	Help with string Quote: > Hello! > I would like to extract letters from files. I am using: > sscanf (line, "%4c", atoms[total_lines].name); > atoms[total_lines].element[0] = atoms[total_lines].name[0]; > if (isalpha(atoms[total_lines].name[1])) { > atoms[total_lines].element[1] = atoms[total_lines].name[1]; > atoms[total_lines].element[2] = '\0'; > } else { > atoms[total_lines].element[1] = '\0'; > } > Now I have a problem. Second leter can be capital or small. CA or Ni. I > must read only those with small second letter. #include <ctype.h> /* etc / if(islower(some_char)) do_stuff(); / etc */ -Mike
Mon, 28 Jun 2004 03:09:34 GMT

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