X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/f93ce652c5d1361b00a28db7bbb9e638197a6676..ab7f4c906111c206b91236ed8c210e681c85f338:/h/mime.h

diff --git a/h/mime.h b/h/mime.h
index d152094a..be854425 100644
--- a/h/mime.h
+++ b/h/mime.h
@@ -12,15 +12,11 @@
 #define	DESCR_FIELD	"Content-Description"
 #define	DISPO_FIELD	"Content-Disposition"
 #define	MD5_FIELD	"Content-MD5"
-#define	ATTACH_FIELD	"Attach"
-
-#define	isatom(c)   (isascii((unsigned char) c) \
-                     && !isspace ((unsigned char) c) \
-		     && !iscntrl ((unsigned char) c) && (c) != '(' \
-	             && (c) != ')' && (c) != '<'  && (c) != '>' \
-	             && (c) != '@' && (c) != ','  && (c) != ';' \
-	             && (c) != ':' && (c) != '\\' && (c) != '"' \
-	             && (c) != '.' && (c) != '['  && (c) != ']')
+#define	PSEUDOHEADER_PREFIX        "Nmh-"
+#define	ATTACH_FIELD               PSEUDOHEADER_PREFIX "Attach"
+#define	ATTACH_FIELD_ALT           "Attach"
+#define	MHBUILD_FILE_PSEUDOHEADER  PSEUDOHEADER_PREFIX "mhbuild-file-"
+#define	MHBUILD_ARGS_PSEUDOHEADER  PSEUDOHEADER_PREFIX "mhbuild-args-"
 
 /*
  * Test for valid characters used in "token"
@@ -35,6 +31,20 @@
 	             && (c) != '/' && (c) != '['  && (c) != ']' \
 	             && (c) != '?' && (c) != '=')
 
+/*
+ * Definitions for RFC 2231 encoding
+ */
+#define istspecial(c)  ((c) == '(' || (c) == ')' || (c) == '<' || (c) == '>' \
+		        || (c) == '@' || (c) == ',' || (c) == ';' \
+			|| (c) == ':' || (c) == '\\' || (c) == '"' \
+			|| (c) == '/' || (c) == '[' || (c) == ']' \
+			|| (c) == '?' || (c) == '=')
+
+#define isparamencode(c)  (!isascii((unsigned char) c) || \
+			   iscntrl((unsigned char) c) || istspecial(c) || \
+			   (c) == ' ' || (c) == '*' || (c) == '\'' || \
+			   (c) == '%')
+
 #define	MAXTEXTPERLN 78
 #define	MAXLONGLINE 998
 #define	CPERLIN	76