cencode.h -> vis.h , re-implementation

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

diff --git a/usr/src/include/vis.h b/usr/src/include/vis.h
index 54e6a69..28b0613 100644 (file)
--- a/usr/src/include/vis.h
+++ b/usr/src/include/vis.h
@@ -14,32 +14,46 @@
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *

- *     @(#)vis.h       5.1 (Berkeley) %G%
+ *     @(#)vis.h       5.2 (Berkeley) %G%

  */
 
  */
 

+

 /*
 /*

- * cencode flags
+ * vis flags

  */
  */

-#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 */

 
 /*
 
 /*

- * cdecode flags
+ * to select alternate encoding format
+ */
+#define        VIS_OCTAL       0x01    /* use octal \ddd format */
+#define        VIS_CSTYLE      0x02    /* use \[nrft...] where appropiate */
+/*
+ * to alter set of characters encoded
+ * (default is to encode all non-graphic except space, tab, and newline)
+ */
+#define        VIS_TAB         0x04    /* also encode tab */
+#define        VIS_WHITE       0x08    /* also encode space, tab, and newline */
+#define        VIS_SAFE        0x10    /* only encode "unsafe" characters */
+/*
+ * other

  */
  */

-#define        CDEC_HAT        1       /* treat ^ as special */
-#define        CDEC_END        2       /* reset decode machine */
+#define        VIS_NOSLASH     0x20    /* inhibit printing '\' */
+#define        VIS_NEXTC       0x40    /* nextc character is valid */
+
+extern char *cvis();

 
 /*
 
 /*

- * cdecode return codes
+ * unvis flags

  */
  */

-#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 */

 
 

-extern char *cencode();
+#define        UNVIS_HAT       0x01    /* treat ^ as special */
+#define        UNVIS_END       0x02    /* reset decode machine */
+
+/*
+ * return codes
+ */
+#define        UNVIS_NEEDMORE  0       /* not done, feed another char */
+#define        UNVIS_OK                1       /* done, character ready */
+#define        UNVIS_OKPUSH    2       /* done, push back passed char */
+#define        UNVIS_NOCHAR    3       /* done, no character ready (hidden newline) */
+#define        UNVIS_SYNBAD    -1      /* unrecognized escape sequence */