mdtools/BASS_parse/BASS.y


/* define some general tokens */

%token MOLECULE ATOM BOND BEND TORSION POSITION MEMBERS CONSTRAINT
%token COMPONENT START_INDEX DEFINED ORIENTATION

/* more advanced tokens */

%union {
  int i_val;                 /* integer value */
  double d_val;              /* double value  */
  char * s_ptr;              /* string pointer */
  struct node_tag* node_ptr; /* pointer to the statement node tree */
  struct integer_list_tag* il_ptr; /*pointer to a int_list item */
}

%token <i_val> INTEGER
%token <i_val> ARRAY_INDEX

%token <d_val> DOUBLE

%token <s_ptr> IDENTIFIER
%token <s_ptr> QUOTED_STRING

%type <node_ptr> stmt
%type <node_ptr> stmt_list
%type <node_ptr> assignment
%type <node_ptr> member
%type <node_ptr> constraint
%type <node_ptr> orientation
%type <node_ptr> position
%type <node_ptr> block
%type <node_ptr> molecule_block
%type <node_ptr> atom_block
%type <node_ptr> bond_block
%type <node_ptr> bend_block
%type <node_ptr> torsion_block
%type <node_ptr> component_block
%type <node_ptr> start_index

%type <il_ptr> int_list
 

%{

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "node_list.h"
#include "make_nodes.h"
#include "parse_tree.h"

extern int yylineno;

struct filename_list{
  char my_name[300];
  struct filename_list* next;
};
extern struct filename_list* yyfile_name;

extern void change_in_file( FILE* in_file );
extern void yacc_model( char* file_name );
extern void kill_lists(void);

/* top of the node list */

struct node_tag* head_node;
struct node_tag* current_node;

%}

%%

program: 
        commands
        ;

commands: /* NULL */
        | commands stmt         { 
                                  current_node->next_stmt = $2;
                                  $2->prev_stmt = current_node;
                                  current_node = $2;
                                }
        ;

stmt:
          assignment            { $$ = $1; }
        | member                { $$ = $1; }
        | constraint            { $$ = $1; }
        | orientation           { $$ = $1; }
        | position              { $$ = $1; }
        | start_index           { $$ = $1; }
        | block                 { $$ = $1; }
        ;

assignment:
          IDENTIFIER '=' INTEGER ';'
                                { $$ = assign_i( $1, $3 ); }
        | IDENTIFIER '=' DOUBLE ';'
                                { $$ = assign_d( $1, $3 ); }
        | IDENTIFIER '=' IDENTIFIER ';'
                                { $$ = assign_s( $1, $3 ); }
        | IDENTIFIER '=' QUOTED_STRING ';'
                                { $$ = assign_s( $1, $3 ); }
        ;

member:
          MEMBERS '(' INTEGER ',' INTEGER ')' ';'
                                { $$ = members_2( $3, $5 ); }
        | MEMBERS '(' INTEGER ',' INTEGER ',' INTEGER ')' ';'
                                { $$ = members_3( $3, $5, $7 ); }
        | MEMBERS '(' INTEGER ',' INTEGER ',' INTEGER ',' INTEGER ')' ';'
                                { $$ = members_4( $3, $5, $7, $9 ); }
        ;

constraint:
          CONSTRAINT '(' INTEGER ')' ';'
                                { $$ = constraint( (double)$3 ); }
        | CONSTRAINT '(' DOUBLE ')' ';'
                                { $$ = constraint( $3 ); }
        ;

orientation:
          ORIENTATION '(' DOUBLE ',' DOUBLE ',' DOUBLE ')' ';'
                                { $$ = orientation( $3, $5, $7 ); }
        | ORIENTATION '(' INTEGER ',' DOUBLE ',' DOUBLE ')' ';'
                                { $$ = orientation( (double)$3, $5, $7 ); }
        | ORIENTATION '(' DOUBLE ',' INTEGER ',' DOUBLE ')' ';'
                                { $$ = orientation( $3, (double)$5, $7 ); }
        | ORIENTATION '(' DOUBLE ',' DOUBLE ',' INTEGER ')' ';'
                                { $$ = orientation( $3, $5, (double)$7 ); }
        | ORIENTATION '(' INTEGER ',' INTEGER ',' INTEGER ')' ';'
                                { $$ = orientation( (double)$3, (double)$5, (double)$7 ); }
        | ORIENTATION '(' DOUBLE ',' INTEGER ',' INTEGER ')' ';'
                                { $$ = orientation( $3, (double)$5, (double)$7 ); }
        | ORIENTATION '(' INTEGER ',' DOUBLE ',' INTEGER ')' ';'
                                { $$ = orientation( (double)$3, $5, (double)$7 ); }
        | ORIENTATION '(' INTEGER ',' INTEGER ',' DOUBLE ')' ';'
                                { $$ = orientation( (double)$3, (double)$5, $7 ); }
        ;

position:
          POSITION '(' DOUBLE ',' DOUBLE ',' DOUBLE ')' ';'
                                { $$ = position( $3, $5, $7 ); }
        | POSITION '(' INTEGER ',' DOUBLE ',' DOUBLE ')' ';'
                                { $$ = position( (double)$3, $5, $7 ); }
        | POSITION '(' DOUBLE ',' INTEGER ',' DOUBLE ')' ';'
                                { $$ = position( $3, (double)$5, $7 ); }
        | POSITION '(' DOUBLE ',' DOUBLE ',' INTEGER ')' ';'
                                { $$ = position( $3, $5, (double)$7 ); }
        | POSITION '(' INTEGER ',' INTEGER ',' INTEGER ')' ';'
                                { $$ = position( (double)$3, (double)$5, (double)$7 ); }
        | POSITION '(' DOUBLE ',' INTEGER ',' INTEGER ')' ';'
                                { $$ = position( $3, (double)$5, (double)$7 ); }
        | POSITION '(' INTEGER ',' DOUBLE ',' INTEGER ')' ';'
                                { $$ = position( (double)$3, $5, (double)$7 ); }
        | POSITION '(' INTEGER ',' INTEGER ',' DOUBLE ')' ';'
                                { $$ = position( (double)$3, (double)$5, $7 ); }
        ;

start_index:
        START_INDEX int_list ';'
                                { $$ = start_index( $2 ); }
        ;

block:
          molecule_block        { $$ = $1; }
        | atom_block            { $$ = $1; }
        | bond_block            { $$ = $1; }
        | bend_block            { $$ = $1; }
        | torsion_block         { $$ = $1; }
        | component_block       { $$ = $1; }
        ;

molecule_block:
        MOLECULE '{' stmt_list '}'
                                { $$ = molecule_blk( $3 ); }
        ;

atom_block:
        ATOM ARRAY_INDEX '{' stmt_list '}'
                                { $$ = atom_blk( $2, $4 ); }
        ;
        
bond_block:
        BOND ARRAY_INDEX '{' stmt_list '}'
                                { $$ = bond_blk( $2, $4 ); }
        ;
        
bend_block:
        BEND ARRAY_INDEX '{' stmt_list '}'
                                { $$ = bend_blk( $2, $4 ); }
        ;
        
torsion_block:
        TORSION ARRAY_INDEX '{' stmt_list '}'
                                { $$ = torsion_blk( $2, $4 ); }
        ;
        
component_block:
        COMPONENT '{' stmt_list '}'
                                { $$ = component_blk( $3 ); }
        ;
        
stmt_list:
          stmt                  { $$ = $1; }
        | stmt_list stmt        { 
                                  $1->next_stmt = $2;
                                  $2->prev_stmt = $1;
                                  $$ = $2;
                                }
        ;

int_list:
          '<' INTEGER           { $$ = il_node( $2 ); }
        | int_list ',' INTEGER  { 
                                  struct integer_list_tag* temp;
                                  temp = il_node( $3 );
                                  $1->next = temp;
                                  temp->prev = $1;
                                  $$ = temp;
                                }
        | int_list '>'          { $$ = il_top( $1 ); }
        ;

%%

int yyerror( char *err_msg ){

  fprintf( stderr, "yacc parse error in %s at line %d: %s\n", yyfile_name->my_name, yylineno, err_msg );
  exit(8);
  return 0;
}

void yacc_BASS( char* file_name ){

  FILE* in_file;

  head_node = (struct node_tag* )malloc( sizeof( node ) );

  head_node->type = GLOBAL_HEAD;
  head_node->index =0;
  head_node->next_stmt = NULL;
  head_node->prev_stmt = NULL;
  head_node->stmt_list = NULL;

  current_node = head_node;

  in_file = fopen( file_name, "r" );
  if( in_file == NULL ){
    fprintf( stderr, "yacc error: couldn't open file =>%s\n", file_name );
    exit(0);
  }

  yyfile_name = (struct filename_list*)malloc( sizeof( struct filename_list ) );
  yyfile_name->next = NULL;
  strcpy( yyfile_name->my_name, file_name );
  change_in_file( in_file );
  
  yyparse();
  fclose( in_file );
  kill_lists();
  
  pt_me( head_node );
  kill_tree( head_node );
  head_node = NULL;
}
Revision:	11
Committed:	Tue Jul 9 18:40:59 2002 UTC (22 years ago) by mmeineke
File size:	6471 byte(s)
Log Message:	This commit was generated by cvs2svn to compensate for changes in r10, which included commits to RCS files with non-trunk default branches.
#	User	Rev	Content
1	mmeineke	10
2			/* define some general tokens */
3
4			%token MOLECULE ATOM BOND BEND TORSION POSITION MEMBERS CONSTRAINT
5			%token COMPONENT START_INDEX DEFINED ORIENTATION
6
7			/* more advanced tokens */
8
9			%union {
10			int i_val; /* integer value */
11			double d_val; /* double value */
12			char * s_ptr; /* string pointer */
13			struct node_tag* node_ptr; /* pointer to the statement node tree */
14			struct integer_list_tag* il_ptr; /pointer to a int_list item /
15			}
16
17			%token <i_val> INTEGER
18			%token <i_val> ARRAY_INDEX
19
20			%token <d_val> DOUBLE
21
22			%token <s_ptr> IDENTIFIER
23			%token <s_ptr> QUOTED_STRING
24
25			%type <node_ptr> stmt
26			%type <node_ptr> stmt_list
27			%type <node_ptr> assignment
28			%type <node_ptr> member
29			%type <node_ptr> constraint
30			%type <node_ptr> orientation
31			%type <node_ptr> position
32			%type <node_ptr> block
33			%type <node_ptr> molecule_block
34			%type <node_ptr> atom_block
35			%type <node_ptr> bond_block
36			%type <node_ptr> bend_block
37			%type <node_ptr> torsion_block
38			%type <node_ptr> component_block
39			%type <node_ptr> start_index
40
41			%type <il_ptr> int_list
42
43
44			%{
45
46			#include <stdlib.h>
47			#include <stdio.h>
48			#include <string.h>
49			#include "node_list.h"
50			#include "make_nodes.h"
51			#include "parse_tree.h"
52
53			extern int yylineno;
54
55			struct filename_list{
56			char my_name[300];
57			struct filename_list* next;
58			};
59			extern struct filename_list* yyfile_name;
60
61			extern void change_in_file( FILE* in_file );
62			extern void yacc_model( char* file_name );
63			extern void kill_lists(void);
64
65			/* top of the node list */
66
67			struct node_tag* head_node;
68			struct node_tag* current_node;
69
70			%}
71
72			%%
73
74			program:
75			commands
76			;
77
78			commands: /* NULL */
79			\| commands stmt {
80			current_node->next_stmt = $2;
81			$2->prev_stmt = current_node;
82			current_node = $2;
83			}
84			;
85
86			stmt:
87			assignment { $$ = $1; }
88			\| member { $$ = $1; }
89			\| constraint { $$ = $1; }
90			\| orientation { $$ = $1; }
91			\| position { $$ = $1; }
92			\| start_index { $$ = $1; }
93			\| block { $$ = $1; }
94			;
95
96			assignment:
97			IDENTIFIER '=' INTEGER ';'
98			{ $$ = assign_i( $1, $3 ); }
99			\| IDENTIFIER '=' DOUBLE ';'
100			{ $$ = assign_d( $1, $3 ); }
101			\| IDENTIFIER '=' IDENTIFIER ';'
102			{ $$ = assign_s( $1, $3 ); }
103			\| IDENTIFIER '=' QUOTED_STRING ';'
104			{ $$ = assign_s( $1, $3 ); }
105			;
106
107			member:
108			MEMBERS '(' INTEGER ',' INTEGER ')' ';'
109			{ $$ = members_2( $3, $5 ); }
110			\| MEMBERS '(' INTEGER ',' INTEGER ',' INTEGER ')' ';'
111			{ $$ = members_3( $3, $5, $7 ); }
112			\| MEMBERS '(' INTEGER ',' INTEGER ',' INTEGER ',' INTEGER ')' ';'
113			{ $$ = members_4( $3, $5, $7, $9 ); }
114			;
115
116			constraint:
117			CONSTRAINT '(' INTEGER ')' ';'
118			{ $$ = constraint( (double)$3 ); }
119			\| CONSTRAINT '(' DOUBLE ')' ';'
120			{ $$ = constraint( $3 ); }
121			;
122
123			orientation:
124			ORIENTATION '(' DOUBLE ',' DOUBLE ',' DOUBLE ')' ';'
125			{ $$ = orientation( $3, $5, $7 ); }
126			\| ORIENTATION '(' INTEGER ',' DOUBLE ',' DOUBLE ')' ';'
127			{ $$ = orientation( (double)$3, $5, $7 ); }
128			\| ORIENTATION '(' DOUBLE ',' INTEGER ',' DOUBLE ')' ';'
129			{ $$ = orientation( $3, (double)$5, $7 ); }
130			\| ORIENTATION '(' DOUBLE ',' DOUBLE ',' INTEGER ')' ';'
131			{ $$ = orientation( $3, $5, (double)$7 ); }
132			\| ORIENTATION '(' INTEGER ',' INTEGER ',' INTEGER ')' ';'
133			{ $$ = orientation( (double)$3, (double)$5, (double)$7 ); }
134			\| ORIENTATION '(' DOUBLE ',' INTEGER ',' INTEGER ')' ';'
135			{ $$ = orientation( $3, (double)$5, (double)$7 ); }
136			\| ORIENTATION '(' INTEGER ',' DOUBLE ',' INTEGER ')' ';'
137			{ $$ = orientation( (double)$3, $5, (double)$7 ); }
138			\| ORIENTATION '(' INTEGER ',' INTEGER ',' DOUBLE ')' ';'
139			{ $$ = orientation( (double)$3, (double)$5, $7 ); }
140			;
141
142			position:
143			POSITION '(' DOUBLE ',' DOUBLE ',' DOUBLE ')' ';'
144			{ $$ = position( $3, $5, $7 ); }
145			\| POSITION '(' INTEGER ',' DOUBLE ',' DOUBLE ')' ';'
146			{ $$ = position( (double)$3, $5, $7 ); }
147			\| POSITION '(' DOUBLE ',' INTEGER ',' DOUBLE ')' ';'
148			{ $$ = position( $3, (double)$5, $7 ); }
149			\| POSITION '(' DOUBLE ',' DOUBLE ',' INTEGER ')' ';'
150			{ $$ = position( $3, $5, (double)$7 ); }
151			\| POSITION '(' INTEGER ',' INTEGER ',' INTEGER ')' ';'
152			{ $$ = position( (double)$3, (double)$5, (double)$7 ); }
153			\| POSITION '(' DOUBLE ',' INTEGER ',' INTEGER ')' ';'
154			{ $$ = position( $3, (double)$5, (double)$7 ); }
155			\| POSITION '(' INTEGER ',' DOUBLE ',' INTEGER ')' ';'
156			{ $$ = position( (double)$3, $5, (double)$7 ); }
157			\| POSITION '(' INTEGER ',' INTEGER ',' DOUBLE ')' ';'
158			{ $$ = position( (double)$3, (double)$5, $7 ); }
159			;
160
161			start_index:
162			START_INDEX int_list ';'
163			{ $$ = start_index( $2 ); }
164			;
165
166			block:
167			molecule_block { $$ = $1; }
168			\| atom_block { $$ = $1; }
169			\| bond_block { $$ = $1; }
170			\| bend_block { $$ = $1; }
171			\| torsion_block { $$ = $1; }
172			\| component_block { $$ = $1; }
173			;
174
175			molecule_block:
176			MOLECULE '{' stmt_list '}'
177			{ $$ = molecule_blk( $3 ); }
178			;
179
180			atom_block:
181			ATOM ARRAY_INDEX '{' stmt_list '}'
182			{ $$ = atom_blk( $2, $4 ); }
183			;
184
185			bond_block:
186			BOND ARRAY_INDEX '{' stmt_list '}'
187			{ $$ = bond_blk( $2, $4 ); }
188			;
189
190			bend_block:
191			BEND ARRAY_INDEX '{' stmt_list '}'
192			{ $$ = bend_blk( $2, $4 ); }
193			;
194
195			torsion_block:
196			TORSION ARRAY_INDEX '{' stmt_list '}'
197			{ $$ = torsion_blk( $2, $4 ); }
198			;
199
200			component_block:
201			COMPONENT '{' stmt_list '}'
202			{ $$ = component_blk( $3 ); }
203			;
204
205			stmt_list:
206			stmt { $$ = $1; }
207			\| stmt_list stmt {
208			$1->next_stmt = $2;
209			$2->prev_stmt = $1;
210			$$ = $2;
211			}
212			;
213
214			int_list:
215			'<' INTEGER { $$ = il_node( $2 ); }
216			\| int_list ',' INTEGER {
217			struct integer_list_tag* temp;
218			temp = il_node( $3 );
219			$1->next = temp;
220			temp->prev = $1;
221			$$ = temp;
222			}
223			\| int_list '>' { $$ = il_top( $1 ); }
224			;
225
226			%%
227
228			int yyerror( char *err_msg ){
229
230			fprintf( stderr, "yacc parse error in %s at line %d: %s\n", yyfile_name->my_name, yylineno, err_msg );
231			exit(8);
232			return 0;
233			}
234
235			void yacc_BASS( char* file_name ){
236
237			FILE* in_file;
238
239			head_node = (struct node_tag* )malloc( sizeof( node ) );
240
241			head_node->type = GLOBAL_HEAD;
242			head_node->index =0;
243			head_node->next_stmt = NULL;
244			head_node->prev_stmt = NULL;
245			head_node->stmt_list = NULL;
246
247			current_node = head_node;
248
249			in_file = fopen( file_name, "r" );
250			if( in_file == NULL ){
251			fprintf( stderr, "yacc error: couldn't open file =>%s\n", file_name );
252			exit(0);
253			}
254
255			yyfile_name = (struct filename_list*)malloc( sizeof( struct filename_list ) );
256			yyfile_name->next = NULL;
257			strcpy( yyfile_name->my_name, file_name );
258			change_in_file( in_file );
259
260			yyparse();
261			fclose( in_file );
262			kill_lists();
263
264			pt_me( head_node );
265			kill_tree( head_node );
266			head_node = NULL;
267			}