/* pager.c */
extern void setup_pager(void);
extern char *pager_program;
-extern int pager_in_use;
+extern int pager_in_use(void);
extern int pager_use_color;
extern char *editor_program;
extern unsigned whitespace_rule_cfg;
extern unsigned whitespace_rule(const char *);
extern unsigned parse_whitespace_rule(const char *);
+extern unsigned check_and_emit_line(const char *line, int len, unsigned ws_rule,
+ FILE *stream, const char *set,
+ const char *reset, const char *ws);
+extern char *whitespace_error_string(unsigned ws);
/* ls-files */
int pathspec_match(const char **spec, char *matched, const char *filename, int skiplen);