Z3 sources

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

lib/simple_parser.h

@@ -0,0 +1,64 @@
+/*++
+Copyright (c) 2006 Microsoft Corporation
+
+Module Name:
+
+    simple_parser.h
+
+Abstract:
+
+    Simple sexpr parser
+
+Author:
+
+    Leonardo de Moura (leonardo) 2008-03-31.
+
+Revision History:
+
+--*/
+#ifndef _SIMPLE_PARSER_H_
+#define _SIMPLE_PARSER_H_
+
+#include"ast.h"
+#include"map.h"
+
+class scanner;
+
+/**
+   \brief Simple sexpr parser.
+   This class is used to parse small expressions used for configuring Z3.
+*/
+class simple_parser {
+protected:
+    struct parser_error {};
+    struct builtin_op {
+        family_id m_family_id;
+        decl_kind m_kind;
+        builtin_op() : m_family_id(null_family_id), m_kind(0) {}
+        builtin_op(family_id fid, decl_kind k) : m_family_id(fid), m_kind(k) {}
+    };
+    typedef map<symbol, builtin_op, symbol_hash_proc, symbol_eq_proc> op_map;
+    typedef map<symbol, var *, symbol_hash_proc, symbol_eq_proc>   var_map;
+    ast_manager &    m_manager;
+    op_map           m_builtin;
+    var_map          m_vars;
+    expr_ref_vector  m_exprs;
+    expr * parse_expr(scanner & s);
+public:
+    simple_parser(ast_manager & m);
+    virtual ~simple_parser();
+    void add_builtin_op(symbol const & s, family_id fid, decl_kind kind);
+    void add_builtin_op(char const * str, family_id fid, decl_kind kind);
+    void add_var(symbol const & s, var * v);
+    void add_var(char const * str, var * v);
+    void reset();
+    void reset_vars();
+    bool parse(std::istream & in, expr_ref & result);
+    bool parse_string(char const * str, expr_ref & result);
+    bool parse_file(char const * file, expr_ref & result);
+    virtual expr * parse_int(rational const & r) { throw parser_error(); }
+    virtual expr * parse_float(rational const & r) { throw parser_error(); }
+};
+
+#endif /* _SIMPLE_PARSER_H_ */
+