source: pcp/src/parsetest.c@ 774ae8

Last change on this file since 774ae8 was a0bcf1, checked in by Frederik Heber <heber@…>, 17 years ago

-initial commit
-Minimum set of files needed from ESPACK SVN repository
-Switch to three tantamount package parts instead of all relating to pcp (as at some time Ralf's might find inclusion as well)
  • Property mode set to 100644
File size: 5.4 KB
Line 
1//#include "init.h"
2#include <stdio.h>
3
4enum value_type { string_type, double_type, int_type, grid, lower_trigrid, upper_trigrid}; //!< Specifying the type to be read of a parameter
5
6
7/** Reads parameter from a parsed file.
8 * \warning value is modified (both in contents and position)!
9 * \param file file to be parsed
10 * \param name Name of value in file (at least 3 chars!)
11 * \param xth Which among a number of parameters it is (in grid case it's row number as grid is read as a whole!)
12 * \param yth Only needed in grid case, specifying column number
13 * \param type Type of the Parameter to be read
14 * \param value address of the value to be read (must have been allocated)
15 * \sa ReadMainParameterFile Calling routine
16 */
17int ParseForParameter(FILE *file, const char *const name, int const xth, int const yth, enum value_type type, void *value) {
18 int i,j; // loop variables
19 int me;
20 long file_position = ftell(file); // mark current position
21 char *dummy1, *dummy, *free_dummy; // pointers in the line that is read in per step
22 char *free_parameter, *parameter; // parameter dummy
23 dummy1 = free_dummy = (char *) malloc(256 * sizeof(char)); //,"ParseForParameter: MemAlloc for dummy1 failed");
24 //MPI_Comm_rank(MPI_COMM_WORLD, &me);
25
26 //fprintf(stderr,"(%i) Parsing for %s\n",me,name);
27
28 int line = 0; // marks line where parameter was found
29 int found = 0; // marks if parameter name was found
30 while((!feof(file)) && (!found)) {
31 dummy1 = dummy = free_dummy;
32 do {
33 fgets(dummy1, 256, file); // Read the whole line, skips commentary and empty ones
34 line++;
35 } while ((dummy1[0] == '#') || (dummy1[0] == '\n'));
36 if (dummy1 == NULL)
37 fprintf(stderr,"(%i) Error reading line %i\n",me,line);
38 else
39 //fprintf(stderr,"(%i) Reading next line %i: %s\n",me, line, dummy1);
40 dummy = strchr(dummy1,'\t'); // set dummy on first tab
41 if (dummy == NULL) {
42 dummy = strchr(dummy1, '\n'); // set on line end then (whole line = keyword)
43 //fprintf(stderr,"(%i)Error: Cannot find tabs on line %i in search for %s\n", me, line, name);
44 //Error(FileOpenParams, NULL);
45 } else {
46 //fprintf(stderr,"(%i) found tab at %i\n",me,(int)dummy-(int)dummy1);
47 }
48 if ((dummy-dummy1 >= 3) && (strncmp(dummy1, name, strlen(name)) == 0)) {
49 found = 1; // found the parameter!
50 //fprintf(stderr,"(%i) found %s at line %i\n",me, name, line);
51
52 for (i=0;i<xth;i++) { // i = rows
53 if (type >= 3) {
54 // grid structure means, grid begins in the next line, not after keyword
55 dummy1 = dummy = free_dummy;
56 do {
57 fgets(dummy1, 256, file); // Read the whole line, skips commentary and empty ones
58 line++;
59 } while ((dummy1[0] == '#') || (dummy1[0] == '\n'));
60 if (dummy1 == NULL){
61 fprintf(stderr,"(%i) Error reading line %i\n", me, line);
62 } else {
63 //fprintf(stderr,"(%i) Reading next line %i: %s\n", me, line, dummy1);
64 }
65 } else {
66 while (*dummy == '\t')
67 dummy++;
68 }
69
70 for (j=0;j<yth;j++) { // j = columns
71 // check for lower triangular area and upper triangular area
72 if ( ((i > j) && (type == upper_trigrid)) || ((j > i) && (type == lower_trigrid))) {
73 *((double *)value) = 0.0;
74 fprintf(stderr,"%f\t",*((double *)value));
75 value += sizeof(double);
76 } else {
77 dummy1 = dummy;
78 dummy = strchr(dummy1, '\t'); // seek for tab
79 if (dummy == NULL) {
80 dummy = strchr(dummy1, '\n'); // at line end then
81 if ((j < yth-1) && (type < 4)) { // check if xth value or not yet
82 fprintf(stderr,"(%i)Error: EoL at %i and still missing %i values %d for parameter %s\n", me, line, yth-j, name);
83 //Error(FileOpenParams, NULL);
84 }
85 } else {
86 //fprintf(stderr,"(%i) found tab at %i\n",me,(int)dummy-(int)free_dummy);
87 }
88 //fprintf(stderr,"(%i) value from %i to %i\n",me,(int)dummy1-(int)free_dummy,(int)dummy-(int)free_dummy);
89 switch(type) {
90 case(grid):
91 case(lower_trigrid):
92 case(upper_trigrid):
93 *((double *)value) = atof(dummy1);
94 if ((i==0) && (j==0)) fprintf(stderr,"(%i)%s = ",me, name);
95 fprintf(stderr,"%f\t",*((double *)value));
96 value += sizeof(double);
97 break;
98 case(double_type):
99 *((double *)value) = atof(dummy1);
100 if (i == xth-1) fprintf(stderr,"(%i)%s = %f\n",me, name, *((double *) value));
101 //value += sizeof(double);
102 break;
103 case(int_type):
104 *((int *)value) = atoi(dummy1);
105 if (i == xth-1) fprintf(stderr,"(%i)%s = %i\n",me, name, *((int *) value));
106 //value += sizeof(int);
107 break;
108 default:
109 case(string_type):
110 strncpy((char *)value, dummy1, dummy-dummy1);
111 fprintf(stderr,"(%i)%s is '%s'\n",me,name,((char *) value));
112 //value += sizeof(char);
113 break;
114 }
115 }
116 while (*dummy == '\t')
117 dummy++;
118 }
119 //fprintf(stderr,"\n");
120 }
121 }
122 }
123 free(free_dummy);
124 fseek(file, file_position, SEEK_SET); // rewind to start position
125 //fprintf(stderr, "(%i) End of Parsing\n\n",me);
126
127 return (found); // true if found, false if not
128}
129
130int main(int argc, char **argv) {
131
132 FILE *cpiInputFile;
133 if (argc < 1) {
134 printf("Cant't find pseudopot path or file\n");
135 return 255;
136 }
137 cpiInputFile = fopen(argv[1],"r");
138 if (cpiInputFile == NULL) {
139 printf("Cant't find pseudopot path or file\n");
140 return 255;
141 }
142 double test;
143 ParseForParameter(cpiInputFile, NULL, 1, 1, double_type, &test);
144 printf("Parsed Value: %f", test);
145
146 return 1;
147}
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