1 /**
2 
3 SFSEXP: Small, Fast S-Expression Library version 1.0
4 Written by Matthew Sottile (matt@lanl.gov)
5 
6 Copyright (2003-2006). The Regents of the University of California. This
7 material was produced under U.S. Government contract W-7405-ENG-36 for Los
8 Alamos National Laboratory, which is operated by the University of
9 California for the U.S. Department of Energy. The U.S. Government has rights
10 to use, reproduce, and distribute this software. NEITHER THE GOVERNMENT NOR
11 THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR ASSUMES ANY
12 LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified to produce
13 derivative works, such modified software should be clearly marked, so as not
14 to confuse it with the version available from LANL.
15 
16 Additionally, this library is free software; you can redistribute it and/or
17 modify it under the terms of the GNU Lesser General Public License as
18 published by the Free Software Foundation; either version 2.1 of the
19 License, or (at your option) any later version.
20 
21 This library is distributed in the hope that it will be useful, but WITHOUT
22 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
23 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
24 for more details.
25 
26 You should have received a copy of the GNU Lesser General Public License
27 along with this library; if not, write to the Free Software Foundation,
28 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, U SA
29 
30 LA-CC-04-094
31 
32 **/
33 
34 /**
35  * utility functions and other relevant stuff for making slisp work
36  */
37 #ifndef __SLISP_UTIL_H__
38 #define __SLISP_UTIL_H__
39 
40 #include "sexp.h"
41 
42 /**
43  * tokens for operations
44  */
45 typedef enum {
46   /* binary logical operations */
47   SL_EQ, SL_GT, SL_LT, SL_NE, SL_GEQ, SL_LEQ,
48 
49   /* unary logical operations */
50   SL_NOT,
51 
52   /* mathematical operations, binary */
53   SL_PLUS, SL_MINUS, SL_MULT, SL_DIVIDE, SL_EXP,
54 
55   /* mathematical operations, unary */
56   SL_SQRT,
57 
58   /* list construction/separation */
59   SL_CONS, SL_CDR, SL_CAR,
60 
61   /* function application over lists */
62   SL_FOLD, SL_MAP,
63 
64   /* list sorting */
65   SL_SORT,
66 
67   /* conditional */
68   SL_IF,
69 
70   /* lambda */
71   SL_LAMBDA,
72 
73   /* UNKNOWN : ERROR */
74   SL_UNKNOWN
75 } slisp_op_t;
76 
77 /*
78  * types for expression elements
79  */
80 typedef enum {
81   SL_INT,
82   SL_FLOAT,
83   SL_STRING,
84   SL_SEXP,
85   SL_INVALID
86 } slisp_val_t;
87 
88 #ifdef __cplusplus
89 extern "C" {
90 #endif
91 
92   sexp_t      *deep_copy_sexp(sexp_t *sx);
93   slisp_op_t   tokenize(sexp_t *sx);
94   slisp_val_t  derive_type(sexp_t *sx);
95 
96 #ifdef __cplusplus
97 }
98 #endif
99 
100 #endif /* __SLISP_UTIL_H__ */
101