1 files changed, 77 insertions, 0 deletions
diff --git a/src/mp-equation.h b/src/mp-equation.h
new file mode 100644
index 0000000..60e6690
--- /dev/null
+++ b/src/mp-equation.h
@@ -0,0 +1,77 @@
+/* Copyright (c) 2004-2008 Sami Pietila
+ * Copyright (c) 2008-2009 Robert Ancell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef MP_EQUATION_H
+#define MP_EQUATION_H
+
+#include "mp.h"
+
+typedef enum
+{
+ PARSER_ERR_NONE = 0,
+ PARSER_ERR_INVALID,
+ PARSER_ERR_OVERFLOW,
+ PARSER_ERR_UNKNOWN_VARIABLE,
+ PARSER_ERR_UNKNOWN_FUNCTION,
+ PARSER_ERR_UNKNOWN_CONVERSION,
+ PARSER_ERR_MP
+} MPErrorCode;
+
+/* Options for parser */
+typedef struct {
+ /* Default number base */
+ int base;
+
+ /* The wordlength for binary operations in bits (e.g. 8, 16, 32) */
+ int wordlen;
+
+ /* Units for angles (e.g. radians, degrees) */
+ MPAngleUnit angle_units;
+
+ // FIXME:
+ // int enable_builtins;
+
+ /* Data to pass to callbacks */
+ void *callback_data;
+ 
+ /* Function to check if a variable is defined */
+ int (*variable_is_defined)(const char *name, void *data);
+
+ /* Function to get variable values */
+ int (*get_variable)(const char *name, MPNumber *z, void *data);
+
+ /* Function to set variable values */
+ void (*set_variable)(const char *name, const MPNumber *x, void *data);
+
+ /* Function to check if a function is defined */
+ int (*function_is_defined)(const char *name, void *data);
+
+ /* Function to solve functions */
+ int (*get_function)(const char *name, const MPNumber *x, MPNumber *z, void *data);
+
+ /* Function to convert units */
+ int (*convert)(const MPNumber *x, const char *x_units, const char *z_units, MPNumber *z, void *data);
+} MPEquationOptions;
+
+MPErrorCode mp_equation_parse(const char *expression, MPEquationOptions *options, MPNumber *result, char **error_token);
+const char *mp_error_code_to_string(MPErrorCode error_code);
+
+int sub_atoi(const char *data);
+int super_atoi(const char *data);
+#endif