#import <stdio.h>
extern FILE *scrub_file;
extern char *scrub_string;
extern char *scrub_last_string;
extern void do_scrub_begin(
void);
extern int scrub_from_file(
void);
extern void scrub_to_file(
int ch);
extern int scrub_from_string(
void);
extern void scrub_to_string(
int ch);
extern int do_scrub_next_char(
int (*get)(void),
void (*unget)(int ch));
typedef struct scrub_context_data {
FILE *last_scrub_file;
int last_state;
int last_old_state;
char *last_out_string;
char last_out_buf[20];
int last_add_newlines;
} scrub_context_data;
extern void save_scrub_context(
scrub_context_data *save_buffer_ptr);
extern void restore_scrub_context(
scrub_context_data *save_buffer_ptr);