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#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#define EXT ".csv"
#define EXT_LEN strlen(".csv")
#define CSV_PATH "csv"
#define HEADER_PATH "analyzer/" CSV_PATH
#define BUFFER_SIZE 256
#define MAX_ARR_SIZE 4096
void create_header(char *file_name) {
// open input file
char input_path[BUFFER_SIZE];
sprintf(input_path, "%s/%s", CSV_PATH, file_name);
FILE *input_fp = fopen(input_path, "r");
// read field names
char from[BUFFER_SIZE], to[BUFFER_SIZE];
fscanf(input_fp, "%[^,],%[^\n]", from, to);
// read values from CSV
char from_to_array[MAX_ARR_SIZE][BUFFER_SIZE] = {""};
size_t max_index = 0;
size_t val1;
char val2[BUFFER_SIZE];
while (fscanf(input_fp, "%zu,%[^\n]", &val1, val2) == 2) {
strcpy(from_to_array[val1], val2);
if (val1 > max_index)
max_index = val1;
}
// close the input file
fclose(input_fp);
// create output file
char output_path[BUFFER_SIZE];
sprintf(output_path, "%s/%s_to_%s.h", HEADER_PATH, from, to);
FILE *output_fp = fopen(output_path, "w");
// write comments and beginning of output array
fprintf(output_fp, "// %s\n", input_path);
fprintf(output_fp, "// array translating %s to %s - generated from csv file\n\n", from, to);
fprintf(output_fp, "char *%s_to_%s[] = {\n", from, to);
// write values
for (size_t i = 0; i <= max_index; i++) {
if (strlen(from_to_array[i]) > 0)
fprintf(output_fp, " \"%s\",\n", from_to_array[i]);
else
fprintf(output_fp, " \"%zu\",\n", i);
}
// write the end of array and len
fprintf(output_fp, "};\n");
fprintf(output_fp, "int %s_to_%s_len = %zu;", from, to, max_index + 1);
// close the output file
fclose(output_fp);
}
int main() {
// make directory for csv header files
mkdir(HEADER_PATH, 0755);
DIR *csv_dir = opendir(CSV_PATH);
struct dirent *entry;
while ((entry = readdir(csv_dir))) {
char *file_name = entry->d_name;
size_t file_name_len = strlen(file_name);
// create header for each *.csv file
if (file_name_len > EXT_LEN && strcmp(file_name + file_name_len - EXT_LEN, EXT) == 0)
create_header(entry->d_name);
}
closedir(csv_dir);
return 0;
}
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