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/* print s string and wait for a single key press from stdin. accepts only
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/* print s string and wait for a single key press from stdin. accepts only
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 * key presses defined in the c ASCIIZ string. returns offset of pressed key
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 * key presses defined in the c ASCIIZ string. returns offset of pressed key
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 * in string. keys in c MUST BE UPPERCASE! */
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 * in string. keys in c MUST BE UPPERCASE! */
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unsigned short askchoice(const char *s, const char *c);
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unsigned short askchoice(const char *s, const char *c);
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/* converts a path to its canonic representation */
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/* converts a path to its canonic representation, returns 0 on success
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 * or DOS err on failure (invalid drive) */
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void file_truename(const char *src, char *dst);
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unsigned short file_truename(const char *src, char *dst);
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/* returns DOS attributes of file, or -1 on error */
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/* returns DOS attributes of file, or -1 on error */
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int file_getattr(const char *fname);
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int file_getattr(const char *fname);
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/* returns screen's width (in columns) */
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/* returns screen's width (in columns) */
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unsigned short screen_getheight(void);
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unsigned short screen_getheight(void);
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/* displays the "Press any key to continue" msg and waits for a keypress */
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/* displays the "Press any key to continue" msg and waits for a keypress */
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void press_any_key(void);
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void press_any_key(void);
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/* validate a drive (A=0, B=1, etc). returns 1 if valid, 0 otherwise */
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int isdrivevalid(unsigned char drv);
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#endif
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#endif