1 files changed, 79 insertions, 0 deletions
diff --git a/libasn1parser/asn1p_constr.h b/libasn1parser/asn1p_constr.h
new file mode 100644
index 00000000..19099b2f
--- /dev/null
+++ b/libasn1parser/asn1p_constr.h
@@ -0,0 +1,79 @@
+/*
+ * Type constraints.
+ */
+#ifndef	ASN1_PARSER_CONSTRAINT_H
+#define	ASN1_PARSER_CONSTRAINT_H
+
+typedef struct asn1p_constraint_s {
+
+	enum asn1p_constraint_type_e {
+		ACT_INVALID,		/* for assertions */
+		/*
+		 * Constraint elements.
+		 */
+		ACT_EL_VALUE,		/* 123, "A", T (elementary value) */
+		ACT_EL_RANGE,		/* 1..2 (elementary range) */
+		ACT_EL_LLRANGE,		/* 1<..2 (elementary range) */
+		ACT_EL_RLRANGE,		/* 1..<2 (elementary range) */
+		ACT_EL_ULRANGE,		/* 1<..<2 (elementary range) */
+		ACT_EL_EXT,		/* ... (extensibility mark) */
+		/*
+		 * Constraint types.
+		 */
+		ACT_CT_SIZE,		/* SIZE constraint type */
+		ACT_CT_FROM,		/* FROM constraint type */
+		ACT_CT_WCOMP,		/* WITH COMPONENT */
+		ACT_CT_WCOMPS,		/* WITH COMPONENTS */
+		/*
+		 * Arrays of constraints.
+		 */
+		ACT_CA_SET,		/* A set of constraints: (c1)(c2) */
+		ACT_CA_CRC,		/* Comp. relation c-t: ({a})({@b}) */
+		ACT_CA_CSV,		/* Comma-separated constraints array */
+		ACT_CA_UNI,		/* UNION (|) */
+		ACT_CA_INT,		/* INTERSECTION (^) */
+		ACT_CA_EXC,		/* EXCEPT */
+	} type;
+
+	enum asn1p_constr_pres_e {
+		ACPRES_DEFAULT,
+		ACPRES_PRESENT,
+		ACPRES_ABSENT,
+		ACPRES_OPTIONAL,
+	} presence;
+
+	/*
+	 * A single values.
+	 */
+	asn1p_value_t *value;
+	asn1p_value_t *range_start;
+	asn1p_value_t *range_stop;
+
+	/*
+	 * A collection of constraint elements.
+	 */
+	struct asn1p_constraint_s **elements;
+	int el_count;	/* Number of meaningful elements */
+	int el_size;	/* Size of the allocated (elements) */
+
+	int _lineno;	/* Position in a source file */
+} asn1p_constraint_t;
+
+
+/*
+ * Constructors and a recursive destructor.
+ */
+asn1p_constraint_t *asn1p_constraint_new(int _lineno);
+void asn1p_constraint_free(asn1p_constraint_t *);
+
+/*
+ * Clone the constraint and all its children.
+ */
+asn1p_constraint_t *asn1p_constraint_clone(asn1p_constraint_t *source_to_clone);
+
+/*
+ * Insert additional element into the element array of a (to) constraint.
+ */
+int asn1p_constraint_insert(asn1p_constraint_t *into, asn1p_constraint_t *what);
+
+#endif	/* ASN1_PARSER_CONSTRAINT_H */