xyz2pov/src/atom_parser.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "atom_parser.h"

#define MK_STR(s) # s
#define STR_DEFINE(t, s) t = MK_STR(s)


struct linked_atom *head_main;
struct linked_atom *head_inUse;
int n_inUse;

int findAtomType_internal(char *, struct atom *);

void initializeParser(){
  char *token;
  char *delim = "\t ,;";
  struct linked_atom *temp_linked;
  const int buffer_size = 300;
  char lineBuffer[buffer_size]; 
  
  char in_filenameStd[500];
  char tempString[500];
  char *atPath;
  char *in_filenameSet;
  char *in_file_env = "_xyz2pov_AtomTypes_";
  FILE *in_file;

  head_main = (struct linked_atom *)malloc(sizeof(struct linked_atom));
  head_main->next = NULL;
  
  head_inUse = (struct linked_atom *)malloc(sizeof(struct linked_atom));
  head_inUse->next = NULL;

  n_inUse = 0;

  // generate the AtomTypes Name
    
  strcpy( in_filenameStd, "AtomTypes" ); 
  
  // attempt to open the file in the current directory first.
  
  in_file = fopen( in_filenameStd, "r" );
  
  if( in_file == NULL ){
    
    // next see if the force path enviorment variable is set
    
    in_filenameSet = getenv( in_file_env );
    if( in_filenameSet != NULL ) {
      
      in_file = fopen(in_filenameSet, "r");
      
      if(in_file == NULL){
        
        fprintf(stderr,
                "Error reading AtomTypes file. The _xyz2pov_AtomTypes_\n"
                "enviorment variable was set incorrectly.\n");
        exit(8);
      }
    }
    else{
      STR_DEFINE(atPath, TYPES_PATH );      
      
      strcpy( tempString, atPath );
      strcat( tempString, "/" );
      strcat( tempString, in_filenameStd );
      strcpy( in_filenameStd, tempString );
      
      in_file = fopen( in_filenameStd, "r" );
      
      if( in_file == NULL ){
        
        fprintf(stderr,
                "Error opening the AtomTypes definition file: %s\n"
                "Have you tried setting the _xyz2pov_AtomTypes_ environment "
                "vairable?\n",
                in_filenameStd );
        exit(8);
      }
    }
  }
   
  
  while(fgets(lineBuffer, sizeof(lineBuffer), in_file) != NULL){
    
    if(lineBuffer[0] == '#' || lineBuffer[0] == '\n'){
      continue;
    }

    token = strtok(lineBuffer, delim);
    sscanf(token, "%s", head_main->myAtom.name);
    strtok(NULL, delim);
    strtok(NULL, delim);
    strtok(NULL, delim);
    token = strtok(NULL, delim);
    sscanf(token, "%lf", &head_main->myAtom.vanDerWallRadii);
    token = strtok(NULL, delim);
    sscanf(token, "%lf", &head_main->myAtom.covalentRadii);
    token = strtok(NULL, delim);
    sscanf(token, "%d", &head_main->myAtom.red);
    token = strtok(NULL, delim);
    sscanf(token, "%d", &head_main->myAtom.green);
    token = strtok(NULL, delim);
    sscanf(token, "%d", &head_main->myAtom.blue);
    
    temp_linked = (struct linked_atom *)malloc(sizeof(struct linked_atom));
    temp_linked->next = head_main;
    head_main = temp_linked;
  }

  fclose(in_file);
  return;
}
  

int findAtomType_internal(char *typeKey, struct atom *dummy_plug){

  struct linked_atom *link;

  link = head_main->next;

  while(link != NULL){

    if(!strcmp(link->myAtom.name, typeKey)){
      strcpy(dummy_plug->name, link->myAtom.name);
      dummy_plug->vanDerWallRadii = link->myAtom.vanDerWallRadii;
      dummy_plug->covalentRadii = link->myAtom.covalentRadii;
      dummy_plug->red = link->myAtom.red;
      dummy_plug->green = link->myAtom.green;
      dummy_plug->blue = link->myAtom.blue;
      
      return 1;
    }
    link = link->next;
  }
  return 0;
}


void update_types(char *new_key){
  
  int found = 0;
  
  struct linked_atom *link;
  
  link = head_inUse->next;
  
  while(link != NULL){
    
    if(!strcmp(link->myAtom.name, new_key)){
      found = 1;
    }
  
    link = link->next;
  }

  if(!found){
    found = findAtomType_internal(new_key, &head_inUse->myAtom);
    if(!found){
      fprintf(stderr, "Atom Type %s, not found!\n",
              new_key);
      exit(8);
    }
    
    link = (struct linked_atom *)malloc(sizeof(struct linked_atom));

    link->next = head_inUse;
    head_inUse = link;

    n_inUse++;
  }

  
}

int get_n_inUse(void){
  return n_inUse;
}


int findAtomType(char *typeKey, struct atom *dummy_plug){

  struct linked_atom *link;

  link = head_inUse->next;

  while(link != NULL){

    if(!strcmp(link->myAtom.name, typeKey)){
      strcpy(dummy_plug->name, link->myAtom.name);
      dummy_plug->vanDerWallRadii = link->myAtom.vanDerWallRadii;
      dummy_plug->covalentRadii = link->myAtom.covalentRadii;
      dummy_plug->red = link->myAtom.red;
      dummy_plug->green = link->myAtom.green;
      dummy_plug->blue = link->myAtom.blue;
      
      return 1;
    }
    link = link->next;
  }
  return 0;
}


struct linked_atom *get_type_list(){
  
  return head_inUse;
}

void clean_type_list(){

  struct linked_atom *current_atom;
  struct linked_atom *next_atom; /* place holders */
  
  
  current_atom = head_inUse->next;
  
  while(current_atom != NULL){
    
    next_atom = current_atom->next;
    free(current_atom);
    current_atom = next_atom;
  }
  
  head_inUse->next = NULL;
}
Revision:	638
Committed:	Fri Jul 18 15:17:15 2003 UTC (22 years, 3 months ago) by mmeineke
Content type:	text/plain
File size:	5029 byte(s)
Log Message:	fixed the AtomType file not found bug.
#	User	Rev	Content
1	mmeineke	60	#include <stdio.h>
2			#include <stdlib.h>
3			#include <string.h>
4
5			#include "atom_parser.h"
6
7	mmeineke	638	#define MK_STR(s) # s
8			#define STR_DEFINE(t, s) t = MK_STR(s)
9	mmeineke	60
10	mmeineke	638
11	mmeineke	60	struct linked_atom *head_main;
12			struct linked_atom *head_inUse;
13			int n_inUse;
14
15			int findAtomType_internal(char , struct atom );
16
17			void initializeParser(){
18			char *token;
19			char *delim = "\t ,;";
20			struct linked_atom *temp_linked;
21			const int buffer_size = 300;
22			char lineBuffer[buffer_size];
23
24	mmeineke	638	char in_filenameStd[500];
25			char tempString[500];
26			char *atPath;
27			char *in_filenameSet;
28	mmeineke	60	char *in_file_env = "_xyz2pov_AtomTypes_";
29			FILE *in_file;
30
31			head_main = (struct linked_atom *)malloc(sizeof(struct linked_atom));
32			head_main->next = NULL;
33
34			head_inUse = (struct linked_atom *)malloc(sizeof(struct linked_atom));
35			head_inUse->next = NULL;
36
37			n_inUse = 0;
38
39	mmeineke	638	// generate the AtomTypes Name
40
41			strcpy( in_filenameStd, "AtomTypes" );
42
43			// attempt to open the file in the current directory first.
44
45			in_file = fopen( in_filenameStd, "r" );
46
47			if( in_file == NULL ){
48
49			// next see if the force path enviorment variable is set
50
51			in_filenameSet = getenv( in_file_env );
52			if( in_filenameSet != NULL ) {
53
54			in_file = fopen(in_filenameSet, "r");
55
56			if(in_file == NULL){
57
58			fprintf(stderr,
59			"Error reading AtomTypes file. The _xyz2pov_AtomTypes_\n"
60			"enviorment variable was set incorrectly.\n");
61			exit(8);
62			}
63			}
64			else{
65			STR_DEFINE(atPath, TYPES_PATH );
66
67			strcpy( tempString, atPath );
68			strcat( tempString, "/" );
69			strcat( tempString, in_filenameStd );
70			strcpy( in_filenameStd, tempString );
71
72			in_file = fopen( in_filenameStd, "r" );
73
74			if( in_file == NULL ){
75
76			fprintf(stderr,
77			"Error opening the AtomTypes definition file: %s\n"
78			"Have you tried setting the _xyz2pov_AtomTypes_ environment "
79			"vairable?\n",
80			in_filenameStd );
81			exit(8);
82			}
83			}
84	mmeineke	60	}
85	mmeineke	638
86	mmeineke	60
87			while(fgets(lineBuffer, sizeof(lineBuffer), in_file) != NULL){
88
89			if(lineBuffer[0] == '#' \|\| lineBuffer[0] == '\n'){
90			continue;
91			}
92
93			token = strtok(lineBuffer, delim);
94			sscanf(token, "%s", head_main->myAtom.name);
95			strtok(NULL, delim);
96			strtok(NULL, delim);
97			strtok(NULL, delim);
98			token = strtok(NULL, delim);
99			sscanf(token, "%lf", &head_main->myAtom.vanDerWallRadii);
100			token = strtok(NULL, delim);
101			sscanf(token, "%lf", &head_main->myAtom.covalentRadii);
102			token = strtok(NULL, delim);
103			sscanf(token, "%d", &head_main->myAtom.red);
104			token = strtok(NULL, delim);
105			sscanf(token, "%d", &head_main->myAtom.green);
106			token = strtok(NULL, delim);
107			sscanf(token, "%d", &head_main->myAtom.blue);
108
109			temp_linked = (struct linked_atom *)malloc(sizeof(struct linked_atom));
110			temp_linked->next = head_main;
111			head_main = temp_linked;
112			}
113
114			fclose(in_file);
115			return;
116			}
117
118
119			int findAtomType_internal(char typeKey, struct atom dummy_plug){
120
121			struct linked_atom *link;
122
123			link = head_main->next;
124
125			while(link != NULL){
126
127			if(!strcmp(link->myAtom.name, typeKey)){
128			strcpy(dummy_plug->name, link->myAtom.name);
129			dummy_plug->vanDerWallRadii = link->myAtom.vanDerWallRadii;
130			dummy_plug->covalentRadii = link->myAtom.covalentRadii;
131			dummy_plug->red = link->myAtom.red;
132			dummy_plug->green = link->myAtom.green;
133			dummy_plug->blue = link->myAtom.blue;
134
135			return 1;
136			}
137			link = link->next;
138			}
139			return 0;
140			}
141
142
143			void update_types(char *new_key){
144
145			int found = 0;
146
147			struct linked_atom *link;
148
149			link = head_inUse->next;
150
151			while(link != NULL){
152
153			if(!strcmp(link->myAtom.name, new_key)){
154			found = 1;
155			}
156
157			link = link->next;
158			}
159
160			if(!found){
161			found = findAtomType_internal(new_key, &head_inUse->myAtom);
162			if(!found){
163			fprintf(stderr, "Atom Type %s, not found!\n",
164			new_key);
165			exit(8);
166			}
167
168			link = (struct linked_atom *)malloc(sizeof(struct linked_atom));
169
170			link->next = head_inUse;
171			head_inUse = link;
172
173			n_inUse++;
174			}
175
176
177			}
178
179			int get_n_inUse(void){
180			return n_inUse;
181			}
182
183
184			int findAtomType(char typeKey, struct atom dummy_plug){
185
186			struct linked_atom *link;
187
188			link = head_inUse->next;
189
190			while(link != NULL){
191
192			if(!strcmp(link->myAtom.name, typeKey)){
193			strcpy(dummy_plug->name, link->myAtom.name);
194			dummy_plug->vanDerWallRadii = link->myAtom.vanDerWallRadii;
195			dummy_plug->covalentRadii = link->myAtom.covalentRadii;
196			dummy_plug->red = link->myAtom.red;
197			dummy_plug->green = link->myAtom.green;
198			dummy_plug->blue = link->myAtom.blue;
199
200			return 1;
201			}
202			link = link->next;
203			}
204			return 0;
205			}
206
207
208			struct linked_atom *get_type_list(){
209
210			return head_inUse;
211			}
212
213			void clean_type_list(){
214
215			struct linked_atom *current_atom;
216			struct linked_atom next_atom; / place holders */
217
218
219			current_atom = head_inUse->next;
220
221			while(current_atom != NULL){
222
223			next_atom = current_atom->next;
224			free(current_atom);
225			current_atom = next_atom;
226			}
227
228			head_inUse->next = NULL;
229			}