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Revision 1.1, Wed Jan 19 18:30:28 2000 UTC (24 years, 3 months ago) by ohara
Branch: MAIN
CVS Tags: new-mathcap-branch, maekawa-ipv6, R_1_3_1-2, RELEASE_20000124, RELEASE_1_3_1_13b, RELEASE_1_2_3_12, RELEASE_1_2_3, RELEASE_1_2_2_KNOPPIX_b, RELEASE_1_2_2_KNOPPIX, RELEASE_1_2_2, RELEASE_1_2_1, RELEASE_1_1_3, RELEASE_1_1_2, KNOPPIX_2006, HEAD, DEB_REL_1_2_3-9 

The bnf.oxweave moved from OpenXM/src/ox_math/documents.
I add some explanations in English.

$OpenXM: OpenXM/src/ox_toolkit/bnf.oxweave,v 1.1 2000/01/19 18:30:28 ohara Exp $

/*&ja
CMO と OX メッセージの形式的定義.

トークンの集合:
トークンは  (  )  , + - の5つか, あるいは「大文字で表された文法記号」である.
「大文字で表された文法記号」の定義は parse.h の TOKEN(*) あるいは T_*による.

*/
/*&en
We explain a formal definition of CMO's and OX data/command messages.
The definition is used in parse.c.

Tokens are the followings:
'(', ')', ',', '+', '-', or symbols written by capitals.
Symbols are defined in parse.h by TOKEN(*) or T_*.

*/
/*&ja
文法規則:
省略記法を許すのはフラグが立っているときだけ.
開始記号は startsymbol である.  トークンの境界は空白で分けてある.
-> | はBNFの記号である.  また {}* は 0 個以上の繰り返しを表す拡張BNFの
記号である.

*/
/*&common
The following BNFs define the grammer of Common Math Objects:

startsymbol
  -> ox \n
   | cmo \n
   | \n

ox
  -> ( OX_COMMAND , sm )
   | ( OX_DATA , cmo )

sm
  -> ( SM_COMMAND )

cmo
  -> ( cmo_null )
   | ( cmo_int32 )
   | ( cmo_string )
   | ( cmo_mathcap )
   | ( cmo_list )
   | ( cmo_zero )
   | ( cmo_zz )
   | ( cmo_monomial32 )
   | ( cmo_dms_generic )
   | ( cmo_ring_by_name )
   | ( cmo_distributed_polynomial )
   | ( cmo_error2 )

cmo_null
  -> CMO_NULL

cmo_int32
  -> CMO_INT32 , integer

cmo_string
  -> CMO_STRING , integer , STRING
   | CMO_STRING , STRING
*/
/*&en
second rule is external rule
*/
/*&common

cmo_mathcap
  -> CMO_MATHCAP , cmo

cmo_list
  -> CMO_LIST , integer  { , cmo }*
   | CMO_LIST { , cmo }*
*/
/*&en
second rule is external rule
*/
/*&common

cmo_monomial32
  -> CMO_MONOMIAL32 , integer { , integer }* , coef

cmo_zz
  -> CMO_ZZ , integer { , integer }*
   | CMO_ZZ , integer
*/
/*&en
second rule is external rule
*/
/*&common

cmo_zero
  -> CMO_ZERO

cmo_dms_generic
  -> CMO_DMS_GENERIC

cmo_ring_by_name
  -> CMO_RING_BY_NAME , ( cmo_string )

cmo_distributed_polynomial
  -> CMO_DISTRIBUTED_POLYNOMIAL , integer , ringdefinition { , monomial }*
   | CMO_DISTRIBUTED_POLYNOMIAL , ringdefinition  { , monomial }*
*/
/*&en
second rule is external rule
*/
/*&ja
        # リストの各要素は monomial である. 空リストの場合もOK?
        # 省略記法
*/
/*&common

cmo_error2
  -> CMO_ERROR2 , cmo

monomial
  -> ( cmo_zero )
   | ( cmo_monomial32 )

ringdefinition
  -> ( cmo_dms_generic )
   | ( cmo_ring_by_name )

coef
  -> ( cmo_zz )
   | ( cmo_int32 )

integer
  -> DIGIT
   | + DIGIT
   | - DIGIT
*/