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Annotation of researchv10no/cmd/asd/transname.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  *     transname - take a pathname, expand it, and translate it
                      3:  *     according to the replist.  The result is in a buffer
                      4:  *     that will stay around no longer than the next call
                      5:  *     to transname.  If no translation, transname will
                      6:  *     just return fullname applied to its argument.
                      7:  */
                      8: 
                      9: #include "asd.h"
                     10: 
                     11: char *
                     12: transname (s)
                     13:        register char *s;
                     14: {
                     15:        register struct replist *rl;
                     16:        static char *res;
                     17:        static int size;
                     18:        register int n;
                     19: 
                     20:        s = fullname (s);
                     21: 
                     22:        /* look for substitution */
                     23:        for (rl = replist; rl; rl = rl->link) {
                     24:                register char *p = rl->source;
                     25:                register char *q = s;
                     26: 
                     27:                /* comparison loop */
                     28:                while (*p != '\0' && *p == *q) {
                     29:                        p++;
                     30:                        q++;
                     31:                }
                     32: 
                     33:                if (*p == '\0') {
                     34:                        /* comparison successful */
                     35:                        n = strlen (rl->dest) + strlen (q) + 1;
                     36:                        if (n > size) {
                     37:                                size = n;
                     38:                                res = ralloc (res, (unsigned) n);
                     39:                        }
                     40:                        strcpy (res, rl->dest);
                     41:                        strcat (res, q);
                     42:                        return res;
                     43:                }
                     44:        }
                     45: 
                     46:        /* search loop failed, return expanded input */
                     47:        return s;
                     48: }

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