| 1 | /*- |
| 2 | * Copyright (c) 1990, 1993 |
| 3 | * The Regents of the University of California. All rights reserved. |
| 4 | * |
| 5 | * %sccs.include.redist.c% |
| 6 | * |
| 7 | * @(#)vis.h 8.1 (Berkeley) %G% |
| 8 | */ |
| 9 | |
| 10 | #ifndef _VIS_H_ |
| 11 | #define _VIS_H_ |
| 12 | |
| 13 | /* |
| 14 | * to select alternate encoding format |
| 15 | */ |
| 16 | #define VIS_OCTAL 0x01 /* use octal \ddd format */ |
| 17 | #define VIS_CSTYLE 0x02 /* use \[nrft0..] where appropiate */ |
| 18 | |
| 19 | /* |
| 20 | * to alter set of characters encoded (default is to encode all |
| 21 | * non-graphic except space, tab, and newline). |
| 22 | */ |
| 23 | #define VIS_SP 0x04 /* also encode space */ |
| 24 | #define VIS_TAB 0x08 /* also encode tab */ |
| 25 | #define VIS_NL 0x10 /* also encode newline */ |
| 26 | #define VIS_WHITE (VIS_SP | VIS_TAB | VIS_NL) |
| 27 | #define VIS_SAFE 0x20 /* only encode "unsafe" characters */ |
| 28 | |
| 29 | /* |
| 30 | * other |
| 31 | */ |
| 32 | #define VIS_NOSLASH 0x40 /* inhibit printing '\' */ |
| 33 | |
| 34 | /* |
| 35 | * unvis return codes |
| 36 | */ |
| 37 | #define UNVIS_VALID 1 /* character valid */ |
| 38 | #define UNVIS_VALIDPUSH 2 /* character valid, push back passed char */ |
| 39 | #define UNVIS_NOCHAR 3 /* valid sequence, no character produced */ |
| 40 | #define UNVIS_SYNBAD -1 /* unrecognized escape sequence */ |
| 41 | #define UNVIS_ERROR -2 /* decoder in unknown state (unrecoverable) */ |
| 42 | |
| 43 | /* |
| 44 | * unvis flags |
| 45 | */ |
| 46 | #define UNVIS_END 1 /* no more characters */ |
| 47 | |
| 48 | #include <sys/cdefs.h> |
| 49 | |
| 50 | __BEGIN_DECLS |
| 51 | char *vis __P((char *, int, int, int)); |
| 52 | int strvis __P((char *, const char *, int)); |
| 53 | int strvisx __P((char *, const char *, size_t, int)); |
| 54 | int strunvis __P((char *, const char *)); |
| 55 | int unvis __P((char *, int, int *, int)); |
| 56 | __END_DECLS |
| 57 | |
| 58 | #endif /* !_VIS_H_ */ |