Commit | Line | Data |
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a24bd519 | 1 | #include <malloc.h> |
7059478f | 2 | #include <stdio.h> |
a24bd519 LM |
3 | #include <string.h> |
4 | ||
5 | #include "alloc.h" | |
6 | #include "debug.h" | |
7 | #include "parser.h" | |
8 | #include "stack.h" | |
9 | #include "storage.h" | |
10 | ||
11 | #include "program.h" | |
12 | ||
13 | /* global variables */ | |
14 | ||
15 | int argument_size = 0; | |
16 | double *argument = NULL; | |
17 | ||
18 | workspace_t *programs = NULL; | |
19 | int nb_programs = 0; | |
20 | ||
21 | /* program function */ | |
22 | ||
23 | void prog (int id, element_t *root) | |
24 | { | |
25 | int i, n = -1; | |
26 | ||
27 | if (programs == NULL) { | |
28 | ||
29 | /* initial memory allocation */ | |
30 | programs = (workspace_t *) callocordie (1, sizeof (workspace_t)); | |
31 | nb_programs = 1; | |
32 | n = 0; | |
33 | ||
34 | } else { | |
35 | ||
36 | /* look for existing program */ | |
37 | for (i = 0; i < nb_programs; i++) { | |
38 | if ((programs + i)->id == id) { | |
39 | n = i; | |
40 | break; | |
41 | } | |
42 | } | |
43 | if (n == -1) { | |
44 | ||
45 | /* new program */ | |
46 | n = nb_programs++; | |
47 | workspace_t *tmp = (workspace_t *) callocordie (nb_programs, sizeof (workspace_t)); | |
48 | memcpy (tmp, programs, (nb_programs - 1) * sizeof (workspace_t)); | |
49 | free (programs); | |
50 | programs = tmp; | |
51 | } else { | |
52 | ||
53 | /* clean old program */ | |
54 | if ((programs + n)->storage) { | |
55 | free ((programs + n)->storage); | |
56 | } | |
57 | if ((programs + n)->stack) { | |
58 | free ((programs + n)->stack); | |
59 | } | |
60 | if ((programs + n)->root) { | |
61 | delelement ((programs + n)->root); | |
62 | } | |
63 | if ((programs + n)->string) { | |
64 | free ((programs + n)->string); | |
65 | (programs + n)->string = NULL; | |
66 | } | |
67 | } | |
68 | } | |
69 | ||
70 | /* set program */ | |
71 | (programs + n)->id = id; | |
72 | (programs + n)->answer = 0; | |
73 | (programs + n)->storage = NULL; | |
74 | (programs + n)->storage_size = 0; | |
75 | (programs + n)->stack = NULL; | |
76 | (programs + n)->stack_size = 0; | |
77 | (programs + n)->root = dupelement (root); | |
78 | } | |
79 | ||
80 | double arg (int id) | |
81 | { | |
82 | double ret = 0; | |
83 | if ((id <= 0) || (id > argument_size)) { | |
84 | VERBOSE (WARNING, fprintf (stdout, "error out of bound (%d/%d)\n", id, argument_size)); | |
85 | } else { | |
86 | ret = argument[id - 1]; | |
87 | } | |
88 | return ret; | |
89 | } | |
90 | ||
91 | double call (int id, int nbargs, element_t **args) | |
92 | { | |
93 | workspace_t tmp = {0}; | |
94 | int i, l, n = -1; | |
95 | double ret = 0; | |
96 | ||
97 | if (programs) { | |
98 | ||
99 | /* look for program */ | |
100 | for (i = 0; i < nb_programs; i++) { | |
101 | if ((programs + i)->id == id) { | |
102 | n = i; | |
103 | break; | |
104 | } | |
105 | } | |
106 | } | |
107 | if (n == -1) { | |
108 | VERBOSE (WARNING, fprintf (stdout, "error unknown program (%d)\n", id)); | |
109 | return 0; | |
110 | } | |
111 | ||
112 | /* store context */ | |
113 | tmp.answer = answer; | |
114 | tmp.argument = argument; | |
115 | tmp.argument_size = argument_size; | |
116 | tmp.storage = storage; | |
117 | tmp.storage_size = storage_size; | |
118 | tmp.stack = stack; | |
119 | tmp.stack_size = stack_size; | |
120 | ||
121 | /* change context */ | |
122 | answer = 0; | |
123 | storage = (programs + n)->storage; | |
124 | storage_size = (programs + n)->storage_size; | |
125 | argument = NULL; | |
126 | argument_size = 0; | |
127 | stack = (programs + n)->stack; | |
128 | stack_size = (programs + n)->stack_size; | |
129 | if (nbargs > 0) { | |
130 | argument = (double *) callocordie (nbargs, sizeof (double)); | |
131 | for (i = 0, l = 0; i < nbargs; l++) { | |
132 | if (args[l]) { | |
133 | argument[i++] = evaluate_element (args[l], 0); | |
134 | } | |
135 | } | |
136 | argument_size = nbargs; | |
137 | } | |
138 | ||
139 | /* evaluate program */ | |
140 | element_t *elements = dupelement ((programs + n)->root); | |
141 | ret = evaluate_element (elements, 0); | |
142 | delelement (elements); | |
143 | (programs + n)->answer = answer; | |
144 | (programs + n)->storage = storage; | |
145 | (programs + n)->storage_size = storage_size; | |
146 | if (argument) { | |
147 | free (argument); | |
148 | } | |
149 | (programs + n)->stack = stack; | |
150 | (programs + n)->stack_size = stack_size; | |
151 | ||
152 | /* restore context */ | |
153 | answer = tmp.answer; | |
154 | storage = tmp.storage; | |
155 | storage_size = tmp.storage_size; | |
156 | argument = tmp.argument; | |
157 | argument_size = tmp.argument_size; | |
158 | stack = tmp.stack; | |
159 | stack_size = tmp.stack_size; | |
160 | ||
161 | return ret; | |
162 | } | |
163 | ||
164 | void list () | |
165 | { | |
166 | int i; | |
167 | fprintf (stdout, "programs:"); | |
168 | for (i = 0; i < nb_programs; i++) { | |
169 | fprintf (stdout, " %d", (programs + i)->id); | |
170 | } | |
171 | fprintf (stdout, "\n"); | |
172 | } | |
173 | ||
174 | void edit (int id) | |
175 | { | |
176 | int i, n = -1; | |
177 | ||
178 | if (programs) { | |
179 | ||
180 | /* look for program */ | |
181 | for (i = 0; i < nb_programs; i++) { | |
182 | if ((programs + i)->id == id) { | |
183 | n = i; | |
184 | break; | |
185 | } | |
186 | } | |
187 | } | |
188 | if (n == -1) { | |
189 | VERBOSE (WARNING, fprintf (stdout, "error unknown program (%d)\n", id)); | |
190 | return; | |
191 | } | |
192 | ||
193 | /* set string program */ | |
194 | fprintf (stdout, "edit: %s\n", (programs + n)->string); | |
195 | } | |
196 | ||
197 | void savestring (int id, char *string) | |
198 | { | |
199 | int i, n = -1; | |
200 | ||
201 | if (programs) { | |
202 | ||
203 | /* look for program */ | |
204 | for (i = 0; i < nb_programs; i++) { | |
205 | if ((programs + i)->id == id) { | |
206 | n = i; | |
207 | break; | |
208 | } | |
209 | } | |
210 | } | |
211 | ||
212 | /* unnecesary code */ | |
213 | //if (n == -1) { | |
214 | // VERBOSE (WARNING, fprintf (stdout, "error unknown program (%d)\n", id)); | |
215 | // return; | |
216 | //} | |
217 | //if ((programs + n)->string) { | |
218 | // free ((programs + n)->string); | |
219 | //} | |
220 | ||
221 | if (string) { | |
222 | (programs + n)->string = strdup (string); | |
223 | } | |
224 | } | |
225 | ||
226 | void del (int id) | |
227 | { | |
228 | int i, j, n = -1; | |
229 | ||
230 | if (programs) { | |
231 | ||
232 | /* look for program */ | |
233 | for (i = 0; i < nb_programs; i++) { | |
234 | if ((programs + i)->id == id) { | |
235 | n = i; | |
236 | break; | |
237 | } | |
238 | } | |
239 | } | |
240 | if (n == -1) { | |
241 | VERBOSE (WARNING, fprintf (stdout, "error unknown program (%d)\n", id)); | |
242 | return; | |
243 | } | |
244 | ||
245 | /* clean program */ | |
246 | if ((programs + n)->storage) { | |
247 | free ((programs + n)->storage); | |
248 | } | |
249 | if ((programs + n)->stack) { | |
250 | free ((programs + n)->stack); | |
251 | } | |
252 | if ((programs + n)->root) { | |
253 | delelement ((programs + n)->root); | |
254 | } | |
255 | if ((programs + n)->string) { | |
256 | free ((programs + n)->string); | |
257 | } | |
258 | ||
259 | /* remove entry */ | |
260 | workspace_t *tmp = (workspace_t *) callocordie (nb_programs - 1, sizeof (workspace_t)); | |
261 | for (i = 0, j = 0; i < nb_programs; i++) { | |
262 | if (i != n) { | |
263 | memcpy (tmp + j, programs + i, sizeof (workspace_t)); | |
264 | j++; | |
265 | } | |
266 | } | |
267 | free (programs); | |
268 | programs = tmp; | |
269 | nb_programs--; | |
270 | } | |
271 | ||
272 | /* vim: set ts=4 sw=4 et: */ |