[NXC] Can I querey a string to determine it's case?

[dodgey]

Hi - I want to query a text string and see if the result is either..

Upper case
Lower case
Numeric

Is this possible? (irrelevent of the content, I just want to know case or numeric)

Otherwise I've got to query the string value and "say" if it's any one character of "DURLBF" or "123456" or "durlbf" then do something.

[muntoo]

Code: Select all

enum szcase
{ none = 0, upper, lower, both, num };

int n;
string sz = "this is a string";
szcase sc = none;

if(sscanf(sz, "%d", n) == EOF)
{
    for(unsigned int i = 0; i < strlen(sz); ++i)
    {
        if(sz[i] >= 'A' && sz[i] <= 'Z')
            sc |= upper;

        if(sz[i] >= 'a' && sz[i] <= 'z')
            sc |= lower;
    }
}
else
{
    sc = num;
    NumOut(0, 0, num, 0);
}

I'm not sure if NXC supports sscanf()...

[dodgey]

Wonderful! Many thanks. I'll have a play.

Even if scanf isn't supported I didn't realise you could "do" <>A-Z <>a-z etc,

... in fact, my string will only ever contain one character/numeral, so I can just use. coolio!

{
if(sz >= 'A' && sz <= 'Z')
sc |= upper;

if(sz >= 'a' && sz <= 'z')
sc |= lower;
}
}
else
{
sc = num;

[afanofosc]

Read the character one time from the string like this:

Code: Select all

char ch = sz[0]; // the one and only character in the string

Then, if you want, you can use the standard library ctype routines for checking characters.

http://bricxcc.sourceforge.net/nbc/nxcd ... ample.html

e.g., isupper, islower, isdigit

You don't need the OR-equal stuff (|=) since you are only looking at a single character.

John Hansen

[muntoo]

Oh, right, forgot about those nifty little is_()s.

Code: Select all

char ch = sz[0];

if(isdigit(ch)) {

}
else if(isupper(ch)) {

}
else if(islower(ch)) {

}
else {

}