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root/group/trunk/OOPSE/libBASS/parse_tree.c
Revision: 957
Committed: Mon Jan 19 16:08:21 2004 UTC (21 years, 3 months ago) by gezelter
Content type: text/plain
File size: 11072 byte(s)
Log Message:
BASS changes to add RigidBodies and LJrcut

File Contents

# Content
1 #include <stdlib.h>
2 #include <stdio.h>
3
4 #include "parse_tree.h"
5 #include "simError.h"
6
7 #ifdef IS_MPI
8 #define __is_lex__
9 #include "mpiBASS.h"
10 #endif
11
12 void walk_down( struct node_tag* the_node, struct namespc the_namespc );
13 int mol_index; // keeps track of the number of molecules
14 int comp_index; // keeps track of the number of components.
15
16 /*
17 * This is the parse tree function that is called by the yacc
18 * routine. It passes the global node and namespace to the recursive
19 * walk_down routine to explore the node tree.
20 */
21
22 void pt_me( struct node_tag* head_node ){
23
24 struct namespc global_namespc;
25
26 if( head_node->type != GLOBAL_HEAD ){
27 sprintf( painCave.errMsg,
28 "Parse tree error: The head node was not the global node.\n" );
29 painCave.isFatal = 1;
30 simError();
31 #ifdef IS_MPI
32 mpiInterfaceExit();
33 #endif //is_mpi
34 }
35
36 global_namespc.index = 0;
37 global_namespc.type = GLOBAL_HEAD;
38
39 mol_index = 0;
40 comp_index = 0;
41 walk_down( head_node->next_stmt, global_namespc );
42 // closed global namespace and exit
43
44 }
45
46 /*
47 * This is the main logic workhorse routine for the node tree
48 * parser. It recursively walks down the node list and calls the
49 * appropriate interface functions acording to the node types. It will
50 * also set the appropriate namespace for the nodes.
51 *
52 * Note: the nodes only know about the namespace of their
53 * current level, the namespace above themselves is hidden.
54 */
55
56 void walk_down( struct node_tag* the_node, struct namespc the_namespc ){
57
58 struct namespc current_namespc;
59
60 if( the_node != NULL ){
61
62 if( the_node->type == GLOBAL_HEAD ){
63 print_tree_error( the_node, "Too many global regions" );
64 }
65
66 if( the_node->stmt_list != NULL ){
67
68 // the statement is a block node of some sort
69
70 switch( the_node->type ){
71
72 case COMPONENT_HEAD:
73 if( the_namespc.type != GLOBAL_HEAD ){
74 print_tree_error( the_node,
75 "component block is not in the global namespace" );
76 }
77 else{
78 init_component( comp_index );
79 current_namespc.index = comp_index;
80 current_namespc.type = COMPONENT_HEAD;
81 walk_down( the_node->stmt_list, current_namespc );
82 comp_index++;
83 }
84 break;
85
86 case MOLECULE_HEAD:
87 if( the_namespc.type != GLOBAL_HEAD ){
88 print_tree_error( the_node,
89 "Molecule block is not in the global namespace" );
90 }
91 else{
92 init_molecule( mol_index );
93 current_namespc.index = mol_index;
94 current_namespc.type = MOLECULE_HEAD;
95 walk_down( the_node->stmt_list, current_namespc );
96 mol_index++;
97 }
98 break;
99
100 case ATOM_HEAD:
101 if( the_namespc.type != MOLECULE_HEAD && the_namespc.type != RIGIDBODY_HEAD ){
102 print_tree_error( the_node,
103 "The atom block is not in a molecule or rigidBody namespace" );
104 }
105 else{
106 init_atom( the_node->index );
107 current_namespc.index = the_node->index;
108 current_namespc.type = the_node->type;
109 walk_down( the_node->stmt_list, current_namespc );
110 }
111 break;
112
113 case RIGIDBODY_HEAD:
114 if( the_namespc.type != MOLECULE_HEAD ){
115 print_tree_error( the_node,
116 "The rigid body block is not in a molecule namespace" );
117 }
118 else{
119 init_rigidbody( the_node->index );
120 current_namespc.index = the_node->index;
121 current_namespc.type = the_node->type;
122 walk_down( the_node->stmt_list, current_namespc );
123 }
124 break;
125
126 case BOND_HEAD:
127 if( the_namespc.type != MOLECULE_HEAD ){
128 print_tree_error( the_node,
129 "The bond block is not in a molecule namespace" );
130 }
131 else{
132 init_bond( the_node->index );
133 current_namespc.index = the_node->index;
134 current_namespc.type = the_node->type;
135 walk_down( the_node->stmt_list, current_namespc );
136 }
137 break;
138
139 case BEND_HEAD:
140 if( the_namespc.type != MOLECULE_HEAD ){
141 print_tree_error( the_node,
142 "The bend block is not in a molecule namespace" );
143 }
144 else{
145 init_bend( the_node->index );
146 current_namespc.index = the_node->index;
147 current_namespc.type = the_node->type;
148 walk_down( the_node->stmt_list, current_namespc );
149 }
150 break;
151
152 case TORSION_HEAD:
153 if( the_namespc.type != MOLECULE_HEAD ){
154 print_tree_error( the_node,
155 "The torsion block is not in "
156 "a molecule namespace" );
157 }
158 else{
159 init_torsion( the_node->index );
160 current_namespc.index = the_node->index;
161 current_namespc.type = the_node->type;
162 walk_down( the_node->stmt_list, current_namespc );
163 }
164 break;
165
166 case ZCONSTRAINT_HEAD:
167 if( the_namespc.type != GLOBAL_HEAD ){
168 print_tree_error( the_node,
169 "The Zconstraint block is not in "
170 "the global namespace" );
171 }
172 else{
173 init_zconstraint( the_node->index );
174 current_namespc.index = the_node->index;
175 current_namespc.type = the_node->type;
176 walk_down( the_node->stmt_list, current_namespc );
177 }
178 break;
179
180 default:
181 print_tree_error( the_node, "Not a valid code block" );
182 }
183 }
184
185 else{
186
187 // the node is a statement
188
189 switch( the_node->type ){
190
191 case MEMBER_STMT:
192 switch( the_namespc.type ){
193 case BOND_HEAD: // fall through
194 case BEND_HEAD: // fall through
195 case TORSION_HEAD: // same for the first three
196 init_members( the_node, the_namespc );
197 break;
198
199 default:
200 print_tree_error( the_node,
201 "Member statement not in a bond, bend, "
202 "or torsion" );
203 break;
204 }
205 break;
206
207 case CONSTRAINT_STMT:
208 switch( the_namespc.type ){
209 case BOND_HEAD: // fall through
210 case BEND_HEAD: // fall through
211 case TORSION_HEAD: // same for the first three
212 init_constraint( the_node, the_namespc );
213 break;
214
215 default:
216 print_tree_error( the_node,
217 "Constraint statement not in a bond, bend, "
218 "or torsion" );
219 break;
220 }
221 break;
222
223 case ASSIGNMENT_STMT:
224 init_assignment( the_node, the_namespc );
225 break;
226
227 case POSITION_STMT:
228 if( the_namespc.type != ATOM_HEAD && the_namespc.type != RIGIDBODY_HEAD){
229 print_tree_error( the_node,
230 "position statement is not located in an "
231 "atom or rigidBody block" );
232 }
233
234 init_position( the_node, the_namespc );
235 break;
236
237 case ORIENTATION_STMT:
238 if( the_namespc.type != ATOM_HEAD && the_namespc.type != RIGIDBODY_HEAD){
239 print_tree_error( the_node,
240 "orientation statement is not located in an "
241 "atom or rigidBody block" );
242 }
243
244 init_orientation( the_node, the_namespc );
245 break;
246
247 default:
248 print_tree_error( the_node, "unrecognized statement" );
249 break;
250 }
251 }
252
253 // recurse down to the next node
254
255 walk_down( the_node->next_stmt, the_namespc );
256 }
257
258 // send an end of block signal
259 else end_of_block();
260
261 // we're done
262 }
263
264
265
266 /*
267 * This is a routine utilized by the node parsers to make printing
268 * error messages easy.
269 */
270
271 void print_tree_error( struct node_tag* err_node, char* err_msg ){
272
273 switch( err_node->type ){
274
275 case GLOBAL_HEAD:
276 sprintf( painCave.errMsg,
277 "Parse tree error: global head node error -> %s\n",
278 err_msg );
279 break;
280
281 case COMPONENT_HEAD:
282 sprintf( painCave.errMsg,
283 "Parse tree error: component head node error -> %s\n",
284 err_msg );
285 break;
286
287 case MOLECULE_HEAD:
288 sprintf( painCave.errMsg,
289 "Parse tree error: molecule head node error -> %s\n",
290 err_msg );
291 break;
292
293 case RIGIDBODY_HEAD:
294 sprintf( painCave.errMsg,
295 "Parse tree error: rigidBody head node error -> %s\n",
296 err_msg );
297 break;
298
299 case ATOM_HEAD:
300 sprintf( painCave.errMsg,
301 "Parse tree error: atom head node error [%d] -> %s\n",
302 err_node->index,
303 err_msg );
304 break;
305
306 case BOND_HEAD:
307 sprintf( painCave.errMsg,
308 "Parse tree error: bond head node error [%d] -> %s\n",
309 err_node->index,
310 err_msg );
311 break;
312
313 case BEND_HEAD:
314 sprintf( painCave.errMsg,
315 "Parse tree error: bend head node error [%d] -> %s\n",
316 err_node->index,
317 err_msg );
318 break;
319
320 case TORSION_HEAD:
321 sprintf( painCave.errMsg,
322 "Parse tree error: torsion head node error [%d] -> %s\n",
323 err_node->index,
324 err_msg );
325 break;
326
327 case ZCONSTRAINT_HEAD:
328 sprintf( painCave.errMsg,
329 "Parse tree error: Zconstraint head node error [%d] -> %s\n",
330 err_node->index,
331 err_msg );
332 break;
333
334 case MEMBER_STMT:
335 sprintf( painCave.errMsg,
336 "Parse tree error: member node error => ( %d, %d, %d, %d )\n"
337 " -> %s\n",
338 err_node->the_data.mbr.a,
339 err_node->the_data.mbr.b,
340 err_node->the_data.mbr.c,
341 err_node->the_data.mbr.d,
342 err_msg );
343 break;
344
345 case CONSTRAINT_STMT:
346 sprintf( painCave.errMsg,
347 "Parse tree error: constraint node error => ( %lf )\n"
348 " -> %s\n",
349 err_node->the_data.cnstr.constraint_val,
350 err_msg );
351 break;
352
353 case ASSIGNMENT_STMT:
354 sprintf( painCave.errMsg,
355 "Parse tree error: assignment node error\n"
356 " => %s = ",
357 err_node->the_data.asmt.identifier );
358
359 switch( err_node->the_data.asmt.type ){
360
361 case STR_ASSN:
362 sprintf( painCave.errMsg,
363 "%s",
364 err_node->the_data.asmt.rhs.str_ptr );
365 break;
366
367 case INT_ASSN:
368 sprintf( painCave.errMsg,
369 "%d",
370 err_node->the_data.asmt.rhs.i_val );
371 break;
372
373 case DOUBLE_ASSN:
374 sprintf( painCave.errMsg,
375 "%lf",
376 err_node->the_data.asmt.rhs.d_val );
377 break;
378 }
379
380 sprintf( painCave.errMsg,
381 "\n"
382 " -> %s\n",
383 err_msg );
384 break;
385
386 case POSITION_STMT:
387 sprintf( painCave.errMsg,
388 "Parse tree error: position node error => ( %lf, %lf, %lf )\n"
389 " -> %s\n",
390 err_node->the_data.pos.x,
391 err_node->the_data.pos.y,
392 err_node->the_data.pos.z,
393 err_msg );
394 break;
395
396 case ORIENTATION_STMT:
397 sprintf( painCave.errMsg,
398 "Parse tree error: orientation node error => ( %lf, %lf, %lf )\n"
399 " -> %s\n",
400 err_node->the_data.ort.x,
401 err_node->the_data.ort.y,
402 err_node->the_data.ort.z,
403 err_msg );
404 break;
405
406 default:
407 sprintf( painCave.errMsg,
408 "Parse tree error: unknown node type -> %s\n",
409 err_msg );
410 }
411
412 painCave.isFatal = 1;
413 simError();
414 #ifdef IS_MPI
415 mpiInterfaceExit();
416 #endif //is_mpi
417
418 }
419
420
421 /*
422 * recursive walkdown and kill of the node tree
423 * note: looks mighty similar to the walkdown routine.
424 */
425
426 void kill_tree( struct node_tag* the_node ){
427
428
429 if( the_node != NULL ){
430
431 if( the_node->stmt_list != NULL ){
432
433 // the statement is a block node of some sort
434
435 kill_tree( the_node->stmt_list );
436 }
437
438 else{
439
440 // the node is a statement
441
442 switch( the_node->type ){
443
444 case ASSIGNMENT_STMT:
445
446 if( the_node->the_data.asmt.type == STR_ASSN )
447 free( the_node->the_data.asmt.rhs.str_ptr );
448
449 free( the_node->the_data.asmt.identifier );
450 break;
451
452 default:
453 // nothing to do here, everyone else can be freed normally.
454 break;
455 }
456 }
457
458 // recurse down to the next node
459
460 kill_tree( the_node->next_stmt );
461 free( the_node );
462 }
463
464 // we're done
465 }