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precedence based parsing of constraints 

git-svn-id: https://asn1c.svn.sourceforge.net/svnroot/asn1c/trunk@1231 59561ff5-6e30-0410-9f3c-9617f08c8826
This commit is contained in:
vlm 2006-09-21 01:50:37 +00:00
parent e54d16a386
commit 1bc782fc4d
2 changed files with 890 additions and 880 deletions
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1737
libasn1parser/asn1p_y.c
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33
libasn1parser/asn1p_y.y
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@ -226,7 +226,7 @@ static asn1p_module_t *currentModule;
%token TOK_VisibleString
%token TOK_WITH
%left TOK_EXCEPT
%nonassoc TOK_EXCEPT
%left '^' TOK_INTERSECTION
%left '|' TOK_UNION
@ -316,6 +316,9 @@ static asn1p_module_t *currentModule;
%type <a_constr> SetOfConstraints
%type <a_constr> ElementSetSpecs /* 1..2,...,3 */
%type <a_constr> ElementSetSpec /* 1..2,...,3 */
%type <a_constr> Unions
%type <a_constr> Intersections
%type <a_constr> IntersectionElements
%type <a_constr> ConstraintSubtypeElement /* 1..2 */
%type <a_constr> SimpleTableConstraint
%type <a_constr> UserDefinedConstraint
@ -1686,9 +1689,8 @@ BasicString:
/*
* Data type constraints.
*/
Union: '|' | TOK_UNION;
Intersection: '^' | TOK_INTERSECTION;
Except: TOK_EXCEPT;
UnionMark: '|' | TOK_UNION;
IntersectionMark: '^' | TOK_INTERSECTION;
optConstraints:
{ $$ = 0; }
@ -1751,19 +1753,30 @@ ElementSetSpecs:
;
ElementSetSpec:
ConstraintSubtypeElement {
$$ = $1;
}
Unions
| TOK_ALL TOK_EXCEPT ConstraintSubtypeElement {
CONSTRAINT_INSERT($$, ACT_CA_AEX, $3, 0);
}
| ElementSetSpec Union ConstraintSubtypeElement {
;
Unions:
Intersections
| Unions UnionMark Intersections {
CONSTRAINT_INSERT($$, ACT_CA_UNI, $1, $3);
}
| ElementSetSpec Intersection ConstraintSubtypeElement {
;
Intersections:
IntersectionElements
| Intersections IntersectionMark IntersectionElements {
CONSTRAINT_INSERT($$, ACT_CA_INT, $1, $3);
}
| ConstraintSubtypeElement Except ConstraintSubtypeElement {
;
IntersectionElements:
ConstraintSubtypeElement
| ConstraintSubtypeElement TOK_EXCEPT ConstraintSubtypeElement {
CONSTRAINT_INSERT($$, ACT_CA_EXC, $1, $3);
}
;