/* 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;
/* match-trees.c */
void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
+/*
+ * whitespace rules.
+ * used by both diff and apply
+ */
+#define WS_TRAILING_SPACE 01
+#define WS_SPACE_BEFORE_TAB 02
+#define WS_INDENT_WITH_NON_TAB 04
+#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
+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);
int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);