Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <draw.h>

/*
 * Default version: convert to file name
 */

char*
subfontname(char *cfname, char *fname, int maxdepth)
{
        char *t, *u, *tmp1, *tmp2;
        int i;

        t = strdup(cfname);  /* t is the return string */
        if(strcmp(cfname, "*default*") == 0)
                return t;
        if(t[0] != '/'){
                tmp2 = strdup(fname);
                u = utfrrune(tmp2, '/');
                if(u)
                        u[0] = 0;
                else
                        strcpy(tmp2, ".");
                tmp1 = smprint("%s/%s", tmp2, t);
                free(tmp2);
                free(t);
                t = tmp1;
        }

        if(maxdepth > 8)
                maxdepth = 8;

        for(i=3; i>=0; i--){
                if((1<<i) > maxdepth)
                        continue;
                /* try i-bit grey */
                tmp2 = smprint("%s.%d", t, i);
                if(access(tmp2, AREAD) == 0) {
                        free(t);
                        return tmp2;
                }
                free(tmp2);
        }

        /* try default */
        if(access(t, AREAD) == 0)
                return t;

        free(t);
        return nil;
}