Refactor scan_includes.

This commit is contained in:
yenatch 2017-04-28 01:41:06 -04:00
parent a98538641b
commit b78ba89f5f

View File

@ -1,6 +1,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
void usage(void) {
printf("Usage: scan_includes filename\n");
@ -25,55 +26,46 @@ void scan_file(char* filename) {
size = ftell(f);
rewind(f);
//fprintf(stderr, "malloc: %s\n", filename);
buffer = malloc(size + 1);
orig = buffer;
fread(buffer, 1, size, f);
buffer[size] = '\0';
fclose(f);
//fprintf(stderr, "read: %s\n", filename);
for (; (buffer != NULL) && (buffer != 0) && (buffer - orig < size); buffer++) {
//fprintf(stderr, "%c", buffer[0]);
for (; buffer && (buffer - orig < size); buffer++) {
if (buffer[0] == ';') {
buffer = strchr(buffer, '\n');
if (buffer == NULL) {
if (!buffer) {
fprintf(stderr, "%s: no newline at end of file\n", filename);
break;
}
continue;
}
if (
(strncmp(buffer, "INCBIN", 6) == 0) ||
(strncmp(buffer, "incbin", 6) == 0)
) {
bool is_include = false;
bool is_incbin = false;
if ((strncmp(buffer, "INCBIN", 6) == 0) || (strncmp(buffer, "incbin", 6) == 0)) {
is_incbin = true;
} else if ((strncmp(buffer, "INCLUDE", 7) == 0) || (strncmp(buffer, "include", 7) == 0)) {
is_include = true;
}
if (is_incbin || is_include) {
buffer = strchr(buffer, '"') + 1;
if (buffer == NULL) break;
if (!buffer) {
break;
}
length = strcspn(buffer, "\"");
include = malloc(length + 1);
strncpy(include, buffer, length);
include[length] = '\0';
printf("%s ", include);
free(include);
} else if (
(strncmp(buffer, "INCLUDE", 7) == 0) ||
(strncmp(buffer, "include", 7) == 0)
) {
buffer = strchr(buffer, '"') + 1;
if (buffer == NULL) break;
length = strcspn(buffer, "\"");
include = malloc(length + 1);
strncpy(include, buffer, length);
include[length] = '\0';
printf("%s ", include);
scan_file(include);
if (is_include) {
scan_file(include);
}
free(include);
}
}
//fprintf(stderr, "free: %s\n", filename);
free(orig);
//fprintf(stderr, "freed: %s\n", filename);
}
int main(int argc, char* argv[]) {