Files
pasm/src/file_utils.c

55 lines
1.3 KiB
C

#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "interpreter_states.h"
#define MAX_LINE 1024
#ifdef _WIN32
extern int dprintf(int stream, const char *format, ...);
#endif
size_t line_count = 0;
int read_script(const char *filename, char ***buf, size_t *lines) {
FILE *script = fopen(filename, "r");
if (script == NULL) {
dprintf(fstream, "Could not open %s.\n", filename);
return 1;
}
char line[MAX_LINE];
while (fgets(line, sizeof(line), script) != NULL) {
size_t length = strlen(line);
if (line[length - 1] == '\n') {
line[length - 1] = '\0';
}
char *line_copy = strdup(line);
char **temp = realloc(*buf, (line_count + 1) * sizeof(char*));
if (temp == NULL) {
dprintf(fstream, "Error allocating memory.\n");
return 1;
}
*buf = temp;
(*buf)[line_count++] = line_copy;
}
if (line_count == 0) {
dprintf(fstream, "%s is an empty file.\n", filename);
return 1;
}
*lines = line_count;
fclose(script);
return 0;
}
void free_script(char **buf) {
if (!buf)
return;
for (size_t i = 0; i < line_count; ++i)
if (buf[i])
free(buf[i]);
free(buf);
free_state();
}