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- /**
- * name StrTrunc -- truncate a string based on a set of trailing chars
- *
- * synopsis str = StrTrunc(str, sub);
- *
- * char *str, original string being truncated
- * *sub; truncation-character string
- *
- * description Removes each trailing character in "str" that is in "sub".
- * The string length is shortened by replacement with a null char.
- *
- * logic Obvious.
- *
- * returns str = original string.
- *
- * modifies External "CharASCII", temporarily.
- *
- * cautions "str" and "sub" must be valid pointers.
- *
- * examples Obvious.
- **/
-
- #ifndef LINT_ARGS
- #define LINT_ARGS
- #endif
- // #include <ffc/const.h>
- // #include <ffc/string.h>
-
- /***/
-
- extern char *StrTrunc(str, sub)
-
- char *str,
- *sub;
- {
- register unsigned char *s;
-
- /*
- * set up CharASCII
- */
-
- s = (unsigned char *)sub;
- while (*s)
- CharASCII[*s++] = Null;
-
- /*
- * truncate
- */
-
- s = (unsigned char *)str;
- while (*s)
- s++;
- while (!(*s = CharASCII[*s]) && s-- > str)
- ;
-
- /*
- * re-set CharASCII
- */
-
- s = (unsigned char *)sub;
- while (CharASCII[*s] = *s)
- s++;
-
- return (str);
- }