===================================================================
RCS file: /home/cvs/OpenXM/doc/issac2000/data-format.tex,v
retrieving revision 1.3
retrieving revision 1.6
diff -u -p -r1.3 -r1.6
--- OpenXM/doc/issac2000/data-format.tex	2000/01/03 04:27:52	1.3
+++ OpenXM/doc/issac2000/data-format.tex	2000/01/15 03:18:27	1.6
@@ -1,25 +1,27 @@
-% $OpenXM: OpenXM/doc/issac2000/data-format.tex,v 1.2 2000/01/02 07:32:11 takayama Exp $
+% $OpenXM: OpenXM/doc/issac2000/data-format.tex,v 1.5 2000/01/13 10:58:16 ohara Exp $
 
 \section{Data Format}   (Ohara)
 
-OpenXM admits multiple math encodings such as OpenMath, MP, CMO
+OpenXM admits multiple mathematical encodings such as OpenMath, MP, CMO
 (Common Mathematical Object format).
 OpenXM itself does not exhibit a bias towards a particular encodings 
-as a main math data carrier and OpenXM compliant system do not need to
+as a main mathematical data carrier and an OpenXM compliant system do not need to
 implement all possible data formats.
 A server or a client does not necessarily implement full specifications
-of OpenXM. 
-However, if a program sends an OX data or an OX command unknown to its peer, 
+of OpenXM. However  they should at least implement seven primitive 
+data types of the CMO, which are necessary to 
+carry several control informations such as a {\it mathcap}.
+Mathcap is a list of supported CMO's, OpenXM stack machine codes, 
+and necessary extra informations.
+If a program sends an OX messages to its peer, 
 an unrecoverable error may occur. 
-To avoid such a case OpenXM provides a scheme not
-to send an OX message unknown to peers. 
-It is realized by exchanging a list of
-supported CMO's, OpenXM stackmachine codes, and necessary extra informations. 
-The list is called {\it mathcap}.
-Mathcap is also defined as a CMO and the elements are 32bit integers
-or strings.
+By exchanging mathcaps a program knows its peer's capability 
+and such an error can be avoided.
+Mathcap is also defined as a CMO and the CMO has a structure of a nest
+of lists.  its leafs of the end are also a CMO which tags with
+CMO\_INT32 or CMO\_STRING.
 
-Math encoding types of OX data are distinguished with tags
+Mathematical encoding types of OX data are distinguished with tags
 of OX messages.
 For example,
 an OX message with the tag 
@@ -28,11 +30,6 @@ An OX message with the tag 
 OX\_DATA\_OPENMATH\_XML is followed by 
 an OpenMath XML string and its length.
 
-All OpenXM compliant systems should implement 7 primitive data types
-of the CMO.
-These are used not only to express mathematical objects, but also
-indispensable to carry control informations such as mathcap.
-CMO is an original methematical data encoding system of the OpenXM project.
 Let us explain the data format of CMO.
 Any CMO packet consists of a header and a body.
 The size of the header is 4 bytes that tags the data type of the body.
@@ -47,6 +44,7 @@ Following tags are registered in the OpenXM for now.
 #define CMO_STRING                         4
 #define CMO_MATHCAP                        5
 #define CMO_LIST                           17
+
 #define CMO_MONOMIAL32                     19
 #define CMO_ZZ                             20
 #define CMO_QQ                             21
@@ -74,55 +72,51 @@ The first seven types should be implemented on all Ope
 The format of the first seven CMO's are as follows. \\
 \begin{tabular}{|c|c|}
 \hline
-{\tt int32 CMO\_ERROR2} & {\sl CMObject} {\rm ob} \\ 
+{\sl int32} {\tt CMO\_ERROR2} & {\sl CMObject} {\rm ob} \\ 
 \hline
 \end{tabular} \\
 \begin{tabular}{|c|c|}
 \hline
-{\tt int32 CMO\_NULL}  \\ 
+{\sl int32} {\tt CMO\_NULL}  \\ 
 \hline
 \end{tabular} \\
 \begin{tabular}{|c|c|}
 \hline
-{\tt int32 CMO\_INT32}& {\tt int32} {\rm n}  \\ 
+{\sl int32} {\tt CMO\_INT32}& {\sl int32} {\rm n}  \\ 
 \hline
 \end{tabular} \\
 \begin{tabular}{|c|c|c|}
 \hline
-{\tt int32 CMO\_DATUM}& {\tt int32} {\rm n} & {\tt byte} {\rm  data[0]} \\
+{\sl int32} {\tt CMO\_DATUM}& {\sl int32} {\rm n} & {\sl byte} {\rm  data[0]} \\
 \hline
-$\cdots$ & {\tt byte} {\rm  data[n-1]} \\ 
+$\cdots$ & {\sl byte} {\rm  data[n-1]} \\ 
 \cline{1-2}
 \end{tabular} \\
 \begin{tabular}{|c|c|c|}
 \hline
-{\tt int32 CMO\_STRING}& {\tt int32} {\rm n} & {\tt byte} {\rm data[0]} \\
+{\sl int32} {\tt CMO\_STRING}& {\sl int32} {\rm n} & {\sl byte} {\rm data[0]} \\
 \hline
-$\cdots$ & {\tt byte} {\rm data[n-1]} \\ 
+$\cdots$ & {\sl byte} {\rm data[n-1]} \\ 
 \cline{1-2}
 \end{tabular} \\
 \begin{tabular}{|c|c|}
 \hline
-{\tt int32 CMO\_MATHCAP} & {\it CMObject} {\rm ob} \\ 
+{\sl int32} {\tt CMO\_MATHCAP} & {\sl CMObject} {\rm ob} \\ 
 \hline
 \end{tabular} \\
 \begin{tabular}{|c|c|c|}
 \hline
-{\tt int32 CMO\_LIST}& {\tt int32} {\rm n} & {\tt CMObject} {\rm ob[0]} \\
+{\sl int32} {\tt CMO\_LIST}& {\sl int32} {\rm n} & {\sl CMObject} {\rm ob[0]} \\
 \hline
-$\cdots$ & {\tt CMObject} {\rm ob[n-1]} \\ 
+$\cdots$ & {\sl CMObject} {\rm ob[n-1]} \\ 
 \cline{1-2}
 \end{tabular} \\
 
-
 A mathematical programmer who wants to implement CMO on a server proceeds 
 as follows.
 \begin{enumerate}
 \item Look for the CMO list at the web cite \cite{openxm-web}.
-If there is a CMO tht fits to her or his requirement, then use this CMO.     
+If there is a CMO that fits to her or his requirement, then use this CMO.     
 \item If there is no suitable CMO, design a new CMO and register 
 the new CMO to \cite{openxm-web} with a description and examples.
 \end{enumerate}
-
-
-