Hello to all,
I am relatively new to programming and not fluent with the built-in functions. I am looking for a function that will evaluate a string of characters. The strings that will be evaluated will have different content based on their origin. To be more specific, I need to know the if the sequence is DNA (contains A C G T ), RNA ( A C G U ), protein (20 amino acid notations) or other.
Any help would be great.
Easiest for the first two would just be nested if statements with something like strchr()
See http://cppreference.com/stdstring/index.html for more functions.
Could anyone give me some help on how to set that up?
Something like(Code isn't tested):
Code:char string[] = "gtac"; // To check char dna[] = "acgt"; // Characters that DNA can/must have(?) int i; for(i = 0; i < strlen(dna); i++) if(strchr(string, dna[i]) == NULL) break; if(i != strlen(dna)) { // String was not DNA, do something }
how would i set it up so that if the sequence evaluates to DNA,
the variable "loadedSequences[nSequences].type" is set to DNA
and likewise for RNA and PROTEIN?
Something like this perhaps?
Code:static const char dna[] = "acgt"; static const char rna[] = "acgu"; static const char protein[] = "aehtrvw"; // whatever. int check_valid(char *str, int type) // int may actually be an enum { char *match; switch(type) { case DNA: match = dna; break; case RNA: match = rna; break; case PROTEIN: match = protein; break; default: // do something sensible here - whatever that may be. // return or exit break; } // Now check that all elements in "str" are in "match". ... }
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
