projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| f8b55f57 MT |
1 | /* |
| 2 | * Copyright (c) 1989 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| 6 | * provided that the above copyright notice and this paragraph are | |
| 7 | * duplicated in all such forms and that any documentation, | |
| 8 | * advertising materials, and other materials related to such | |
| 9 | * distribution and use acknowledge that the software was developed | |
| 10 | * by the University of California, Berkeley. The name of the | |
| 11 | * University may not be used to endorse or promote products derived | |
| 12 | * from this software without specific prior written permission. | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 16 | * | |
| 11ac2e1d | 17 | * @(#)vis.h 5.2 (Berkeley) %G% |
| f8b55f57 MT |
18 | */ |
| 19 | ||
| 11ac2e1d | 20 | |
| f8b55f57 | 21 | /* |
| 11ac2e1d | 22 | * vis flags |
| f8b55f57 | 23 | */ |
| f8b55f57 MT |
24 | |
| 25 | /* | |
| 11ac2e1d MT |
26 | * to select alternate encoding format |
| 27 | */ | |
| 28 | #define VIS_OCTAL 0x01 /* use octal \ddd format */ | |
| 29 | #define VIS_CSTYLE 0x02 /* use \[nrft...] where appropiate */ | |
| 30 | /* | |
| 31 | * to alter set of characters encoded | |
| 32 | * (default is to encode all non-graphic except space, tab, and newline) | |
| 33 | */ | |
| 34 | #define VIS_TAB 0x04 /* also encode tab */ | |
| 35 | #define VIS_WHITE 0x08 /* also encode space, tab, and newline */ | |
| 36 | #define VIS_SAFE 0x10 /* only encode "unsafe" characters */ | |
| 37 | /* | |
| 38 | * other | |
| f8b55f57 | 39 | */ |
| 11ac2e1d MT |
40 | #define VIS_NOSLASH 0x20 /* inhibit printing '\' */ |
| 41 | #define VIS_NEXTC 0x40 /* nextc character is valid */ | |
| 42 | ||
| 43 | extern char *cvis(); | |
| f8b55f57 MT |
44 | |
| 45 | /* | |
| 11ac2e1d | 46 | * unvis flags |
| f8b55f57 | 47 | */ |
| f8b55f57 | 48 | |
| 11ac2e1d MT |
49 | #define UNVIS_HAT 0x01 /* treat ^ as special */ |
| 50 | #define UNVIS_END 0x02 /* reset decode machine */ | |
| 51 | ||
| 52 | /* | |
| 53 | * return codes | |
| 54 | */ | |
| 55 | #define UNVIS_NEEDMORE 0 /* not done, feed another char */ | |
| 56 | #define UNVIS_OK 1 /* done, character ready */ | |
| 57 | #define UNVIS_OKPUSH 2 /* done, push back passed char */ | |
| 58 | #define UNVIS_NOCHAR 3 /* done, no character ready (hidden newline) */ | |
| 59 | #define UNVIS_SYNBAD -1 /* unrecognized escape sequence */ |