DBT.data is unsigned

[unix-history] / usr / src / include / vis.h

diff --git a/usr/src/include/vis.h b/usr/src/include/vis.h
index 54e6a69..091f8e5 100644 (file)
--- a/usr/src/include/vis.h
+++ b/usr/src/include/vis.h
@@ -1,45 +1,53 @@
-/*
- * Copyright (c) 1989 The Regents of the University of California.
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.

  * All rights reserved.
  *
  * All rights reserved.
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * %sccs.include.redist.c%

  *
  *

- *     @(#)vis.h       5.1 (Berkeley) %G%
+ *     @(#)vis.h       5.8 (Berkeley) %G%
+ */
+
+/*
+ * to select alternate encoding format

  */
  */

+#define        VIS_OCTAL       0x01    /* use octal \ddd format */
+#define        VIS_CSTYLE      0x02    /* use \[nrft0..] where appropiate */

 
 /*
 
 /*

- * cencode flags
+ * to alter set of characters encoded (default is to encode all
+ * non-graphic except space, tab, and newline).

  */
  */

-#define        CENC_CSTYLE     1       /* use C-style backslash sequences */
-#define        CENC_GRAPH      2       /* encode as ^? and M- sequences */
-#define        CENC_OCTAL      4       /* encode as octal sequences */
-#define        CENC_ALL        (CENC_CSTYLE|CENC_GRAPH|CENC_OCTAL)
-#define        CENC_WHITE      8       /* encode white-space chars (sp-tb-nl) */
-#define        CENC_RACHAR     0x10    /* look at read-ahead char */
+#define        VIS_SP          0x04    /* also encode space */
+#define        VIS_TAB         0x08    /* also encode tab */
+#define        VIS_NL          0x10    /* also encode newline */
+#define        VIS_WHITE       (VIS_SP | VIS_TAB | VIS_NL)
+#define        VIS_SAFE        0x20    /* only encode "unsafe" characters */

 
 /*
 
 /*

- * cdecode flags
+ * other

  */
  */

-#define        CDEC_HAT        1       /* treat ^ as special */
-#define        CDEC_END        2       /* reset decode machine */
+#define        VIS_NOSLASH     0x40    /* inhibit printing '\' */

 
 /*
 
 /*

- * cdecode return codes
+ * unvis return codes

  */
  */

-#define        CDEC_NEEDMORE   0       /* not done, feed another char */
-#define        CDEC_OK         1       /* done, character ready */
-#define        CDEC_OKPUSH     2       /* done, push back passed char */
-#define        CDEC_NOCHAR     3       /* done, no character ready (hidden newline) */
-#define        CDEC_SYNBAD     -1      /* unrecognized escape sequence */
+#define        UNVIS_VALID      1      /* character valid */
+#define        UNVIS_VALIDPUSH  2      /* character valid, push back passed char */
+#define        UNVIS_NOCHAR     3      /* valid sequence, no character produced */
+#define        UNVIS_SYNBAD    -1      /* unrecognized escape sequence */
+#define        UNVIS_ERROR     -2      /* decoder in unknown state (unrecoverable) */
+
+/*
+ * unvis flags
+ */
+#define        UNVIS_END       1       /* no more characters */
+
+#include <sys/cdefs.h>

 
 

-extern char *cencode();
+__BEGIN_DECLS
+char   *vis __P((char *, char, int, char));
+int    strvis __P((char *, const char *, int));
+int    strvisx __P((char *, const char *, size_t, int));
+int    strunvis __P((char *, const char *));
+int    unvis __P((char *, char, int *, int));
+__END_DECLS