<!-- http://cs.unibo.it/helm/. -->
<!--*****************************************************************-->
-<!-- DTD FOR the MATHEMATICAL QUERY MARKUP LANGUAGE (MathQML) -->
+<!-- DTD FOR the MATHEMATICAL QUERY MARKUP LANGUAGE (XMathQL) -->
<!-- First draft: April 2002, Irene Schena -->
+<!-- Second draft: Agust 2002, Irene Schena -->
<!--*****************************************************************-->
<!--*****************************************************************-->
<!-- 3) reusing queries saved in a standard format -->
<!-- The syntax reflects the structure of the grammar productions of -->
<!-- MathQL. -->
-<!-- The %queryexpr parameter entity is used to allow all query -->
-<!-- expression types to occur -->
<!-- Operators are unambiguous (binary or unary), so there isn't any -->
<!-- grouping operator. -->
-<!-- CONST is the constant string. -->
+<!-- CONST is the quoted constant string; rvar is for single -->
+<!-- reference and svar for sets of references, i.e. query results. -->
+<!-- The attributes binder, rvar, svar declare variables which are -->
+<!-- referred to and used by means of respectively BINDER, Rvar, Svar-->
+<!-- PROPERTY works on a specified RDF property returning its value. -->
<!--*****************************************************************-->
-<!ENTITY % position '(Conclusion|Hypothesis|Body|MainConclusion|
- MainHypothesis)'>
-
-<!ENTITY % order '(ascendant|descendant)'>
-
<!ENTITY % bool '(True|False)'>
<!-- MathQL query expression declaration -->
-<!ENTITY % queryexpr '(Union|Intersect|Diff|SortBy|Select|Exists|Use|UsedBy|
- ConstructorsOf|Pattern|InTheory|TheoryRefTo|TypeOf|
- SuperTypeOf|SubTypeOf|Group)'>
+<!ENTITY % setexpr '(Rvar|Svar|Ref|Pattern|Select|LetSIn|LetVIn|Relation|
+ Union|Intersect|Diff)'>
<!-- MathQL boolean expression declaration -->
-<!ENTITY % boolexpr '(AND|OR|NOT|BOOL|IS|GROUP)'>
-
-<!-- MathQL string expression declaration -->
+<!ENTITY % boolexpr '(BOOL|NOT|AND|OR|EQ|SUB|MEET|EX)'>
-<!ENTITY % functexpr '(NAME|PROPERTY|SUPERPROPERTY|SUBPROPERTY)'>
+<!-- MathQL string-set expression declaration -->
-<!ENTITY % stringexpr '(CONST|POSITION|RVAR|BINDER|%functexpr;)'>
+<!ENTITY % functexpr '(FUN|PROPERTY)'>
+<!ENTITY % stringsetexpr '(CONST|CONSTLIST|REFOF|BINDER|VVAR|%functexpr;)'>
-<!-- MathQL top-element -->
+<!-- MathQL query top-element -->
-<!ELEMENT MathQL %queryexpr;>
+<!ELEMENT MQLquery %setexpr;>
-<!-- MathQL query expressions -->
+<!-- MathQL set expressions -->
-<!ELEMENT Union (%queryexpr;, %queryexpr;)>
+<!ELEMENT Rvar EMPTY>
+<!ATTLIST Rvar
+ name CDATA #REQUIRED>
-<!ELEMENT Intersect (%queryexpr;, %queryexpr;)>
+<!ELEMENT Svar EMPTY>
+<!ATTLIST Svar
+ name CDATA #REQUIRED>
-<!ELEMENT Diff (%queryexpr;, %queryexpr;)>
+<!ELEMENT Ref %stringsetexpr;>
-<!ELEMENT SortBy (%queryexpr;, SortField)>
+<!ELEMENT Pattern %stringsetexpr;>
<!ELEMENT Select (In, Where)>
-<!ELEMENT Exists (In, Where)>
+<!ELEMENT LetSIn (%setexpr;, Starget)>
-<!ELEMENT Use (%queryexpr;, Position)>
+<!ELEMENT LetVIn (%stringsetexpr;, Vtarget)>
-<!ELEMENT Position EMPTY>
-<!ATTLIST Position
- binder CDATA #REQUIRED>
+<!ELEMENT Relation (PName?,%setexpr;, Attr+)>
+<!ATTLIST Relation
+ name CDATA #REQUIRED
+ refine (sub|super) #IMPLIED>
-<!ELEMENT UsedBy (%queryexpr;, Position)>
+<!ELEMENT Union (%setexpr;, %setexpr;)>
-<!ELEMENT ConstructorsOf %queryexpr;>
+<!ELEMENT Intersect (%setexpr;, %setexpr;)>
-<!ELEMENT Pattern EMPTY>
-<!ATTLIST Pattern
- arg CDATA #REQUIRED>
+<!ELEMENT Diff (%setexpr;, %setexpr;)>
-<!ELEMENT InTheory (%queryexpr;, ItemType)>
+<!-- MathQL set sub-expressions -->
-<!ELEMENT ItemType EMPTY>
-<!ATTLIST ItemType
- binder CDATA #REQUIRED>
+<!ELEMENT In %setexpr;>
-<!ELEMENT TheoryRefTo %queryexpr;>
+<!ELEMENT Where %boolexpr;>
+<!ATTLIST Where
+ rvar CDATA #REQUIRED>
-<!ELEMENT TypeOf %queryexpr;>
-<!ATTLIST TypeOf
- binder CDATA #REQUIRED>
+<!ELEMENT Starget %setexpr;>
+<!ATTLIST Starget
+ svar CDATA #REQUIRED>
-<!ELEMENT SuperTypeOf %queryexpr;>
-<!ATTLIST SuperTypeOf
- binder CDATA #REQUIRED>
+<!ELEMENT Vtarget %setexpr;>
+<!ATTLIST Vtarget
+ vvar CDATA #REQUIRED>
-<!ELEMENT SubTypeOf %queryexpr;>
-<!ATTLIST SubTypeOf
+<!ELEMENT Attr EMPTY>
+<!ATTLIST Attr
binder CDATA #REQUIRED>
-<!-- MathQL query sub-expressions -->
+<!ELEMENT PName (CONST+)>
-<!ELEMENT SortField %functexpr;>
-<!ATTLIST SortField
- order %order; #IMPLIED>
-
-<!ELEMENT In %queryexpr;>
+<!-- MathQL boolean expressions -->
-<!ELEMENT Where %boolexpr;>
-<!ATTLIST Where
- rvar CDATA #REQUIRED>
+<!ELEMENT BOOL EMPTY>
+<!ATTLIST BOOL
+ value %bool; #REQUIRED>
-<!-- MathQL boolean expressions -->
+<!ELEMENT NOT %boolexpr;>
<!ELEMENT AND (%boolexpr;, %boolexpr;)>
<!ELEMENT OR (%boolexpr;, %boolexpr;)>
-<!ELEMENT NOT %boolexpr;>
+<!ELEMENT EQ (%stringsetexpr;, %stringsetexpr;)>
-<!ELEMENT IS (%stringexpr;, %stringexpr;)>
+<!ELEMENT SUB (%stringsetexpr;, %stringsetexpr;)>
-<!ELEMENT BOOL EMPTY>
-<!ATTLIST BOOL
- value %bool; #REQUIRED>
+<!ELEMENT MEET (%stringsetexpr;, %stringsetexpr;)>
-<!-- MathQL string expressions -->
-<!ELEMENT CONST (#PCDATA)>
+<!ELEMENT EX %boolexpr;>
-<!ELEMENT RVAR EMPTY>
-<!ATTLIST RVAR
- name CDATA #REQUIRED>
+<!-- MathQL string-set expressions -->
-<!ELEMENT BINDER EMPTY>
-<!ATTLIST BINDER
- name CDATA #REQUIRED>
+<!ELEMENT CONST (#PCDATA)>
-<!ELEMENT POSITION EMPTY>
-<!ATTLIST POSITION
- name %position; #REQUIRED>
+<!ELEMENT CONSTLIST (CONST*)>
-<!ELEMENT NAME (RVAR)>
+<!ELEMENT REFOF %setexpr;>
-<!ELEMENT PROPERTY (RVAR|CONST)>
-<!ATTLIST PROPERTY
+<!ELEMENT VVAR %stringsetexpr;>
+
+<!ELEMENT BINDER (Rvar)>
+<!ATTLIST BINDER
name CDATA #REQUIRED>
-<!ELEMENT SUPERPROPERTY (RVAR|CONST)>
-<!ATTLIST SUPERPROPERTY
+<!ELEMENT FUN %stringsetexpr;>
+<!ATTLIST FUN
name CDATA #REQUIRED>
-<!ELEMENT SUBPROPERTY (RVAR|CONST)>
-<!ATTLIST SUBPROPERTY
- name CDATA #REQUIRED>
\ No newline at end of file
+<!ELEMENT PROPERTY (Refine?,%stringsetexpr;)>
+<!ATTLIST PROPERTY
+ name CDATA #REQUIRED>
projects / helm.git / blobdiff