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- /*
- ** scanning functions
- */
- #include <stdio.h>
- #include "mac.h"
- #define NOCCARGC
- atend(ch) int ch; { /* is ch at end of line? */
- switch(ch) {
- case COMMENT: case NULL: case '\n': return (YES);
- }
- return (NO);
- }
-
- fldcmp(s, t) char *s, *t; { /* compare fields in a line */
- while(lexorder(*s, *t) == 0) {
- if(!isgraph(*s)) return (0);
- ++s; ++t;
- }
- if((isspace(*s) || atend(*s)) &&
- (isspace(*t) || atend(*t))) return (0);
- return (*s - *t);
- }
-
- skip(n, str) int n; char str[]; { /* find nth non-blank field in str */
- char *cp; cp = str;
- while(isspace(*cp)) ++cp;
- while(--n) {
- while(isgraph(*cp)) ++cp;
- while(isspace(*cp)) ++cp;
- }
- return (cp);
- }
- isspace(*cp)) ++cp;
- while(--n) {