1 files changed, 65 insertions, 0 deletions
diff --git a/terms.h b/terms.h
new file mode 100644
index 0000000..8c307d5
--- /dev/null
+++ b/terms.h
@@ -0,0 +1,65 @@
+#ifndef REPREPRO_TERMS_H
+#define REPREPRO_TERMS_H
+
+enum term_comparison { tc_none=0, tc_equal, tc_strictless, tc_strictmore,
+				  tc_lessorequal, tc_moreorequal,
+				  tc_notequal, tc_globmatch, tc_notglobmatch};
+
+struct term_special;
+
+typedef struct term_atom {
+	/* global list to allow freeing them all */
+	struct term_atom *next;
+	/* the next atom to look at if this is true, resp. false,
+	 * nextiftrue  == NULL means total result is true,
+	 * nextiffalse == NULL means total result is false. */
+	/*@dependent@*/struct term_atom *nextiftrue, *nextiffalse;
+	bool negated, isspecial;
+	/* architecture requirements */
+	bool architectures_negated;
+	struct strlist architectures;
+	/* version/value requirement */
+	enum term_comparison comparison;
+	union {
+		struct {
+			/* package-name or key */
+			char *key;
+			/* version/value requirement */
+			char *comparewith;
+		} generic;
+		struct {
+			const struct term_special *type;
+			struct compare_with {
+				void *pointer;
+				long number;
+			} comparewith;
+		} special;
+	};
+} term;
+
+struct term_special {
+	const char *name;
+	retvalue (*parse)(enum term_comparison, const char *, size_t len, struct compare_with *);
+	bool (*compare)(enum term_comparison, const struct compare_with *, void*, void*);
+	void (*done)(enum term_comparison, struct compare_with *);
+};
+
+/* | is allowed in terms */
+#define T_OR		0x01
+/* () are allowed to build sub-expressions */
+#define T_BRACKETS	0x02
+/* expressions may be negated */
+#define T_NEGATION	0x04
+/* (<rel> <version>) is allowed */
+#define T_VERSION 	0x10
+/* [archlist] is allowed */
+#define T_ARCHITECTURES 0x20
+/* (!= value) is allowed */
+#define T_NOTEQUAL	0x40
+/* (% <globpattern>) and (!% globpattern) are allowed */
+#define T_GLOBMATCH	0x80
+
+retvalue term_compile(/*@out@*/term **, const char * /*formula*/, int /*options*/, /*@null@*/const struct term_special *specials);
+void term_free(/*@null@*//*@only@*/term *);
+
+#endif