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DtY

Wed Nov 11, 2009 10:57 pm


Remove duplicate spaces (in places)

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As part of a project, I wanted to remove all duplicate spaces (ie, -- would become -, --- would become -, where each dash is a space), and I didn't need it to be in a different buffer, so I did it in place.
It works by overwriting the original buffer as it goes over the input. I haven't done any benchmarking, but it works pretty fast (near 2k file in no perceived time on my laptop).

/*
    Removes duplicate spaces, in place
*/
void rmDblSpace(char *in, unsigned int length) {
    unsigned int inPlace, outPlace; /* Points to where the input and output
        are coming from/going to */
    inPlace = 0;
    outPlace = 0;
    
    while (inPlace