Refactor scan_includes

This commit is contained in:
yenatch 2017-08-20 12:32:15 -04:00
parent 80888726b9
commit 885af5e543

View File

@ -19,16 +19,8 @@ struct Options {
struct Options Options = {0};
void scan_file(char* filename) {
FILE* f;
long size;
char* orig;
char* buffer;
char* include;
int length;
f = fopen(filename, "r");
FILE *f = fopen(filename, "rb");
if (!f) {
if (Options.strict) {
fprintf(stderr, "Could not open file: '%s'\n", filename);
@ -39,65 +31,70 @@ void scan_file(char* filename) {
}
fseek(f, 0, SEEK_END);
size = ftell(f);
long size = ftell(f);
rewind(f);
buffer = malloc(size + 1);
orig = buffer;
fread(buffer, 1, size, f);
char *buffer = malloc(size + 1);
char *orig = buffer;
size = fread(buffer, 1, size, f);
buffer[size] = '\0';
fclose(f);
for (; buffer && (buffer - orig < size); buffer++) {
if (buffer[0] == ';') {
buffer = strchr(buffer, '\n');
if (!buffer) {
fprintf(stderr, "%s: no newline at end of file\n", filename);
break;
}
continue;
}
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) {
switch (*buffer) {
case ';':
buffer = strchr(buffer, '\n');
if (!buffer) {
fprintf(stderr, "%s: no newline at end of file\n", filename);
}
break;
}
length = strcspn(buffer, "\"");
include = malloc(length + 1);
strncpy(include, buffer, length);
include[length] = '\0';
printf("%s ", include);
if (is_include) {
scan_file(include);
}
free(include);
case 'i':
case 'I':
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, '"');
if (!buffer++) {
break;
}
int length = strcspn(buffer, "\"");
char *include = malloc(length + 1);
strncpy(include, buffer, length);
include[length] = '\0';
printf("%s ", include);
if (is_include) {
scan_file(include);
}
free(include);
buffer = strchr(buffer, '"');
}
break;
}
if (!buffer) {
break;
}
}
free(orig);
}
void get_args(int argc, char *argv[]) {
while (1) {
struct option long_options[] = {
{"strict", no_argument, 0, 's'},
{"help", no_argument, 0, 'h'},
{0}
};
int i = 0;
int opt = getopt_long(argc, argv, "sh", long_options, &i);
if (opt == -1) {
break;
}
int main(int argc, char* argv[]) {
int i = 0;
struct option long_options[] = {
{"strict", no_argument, 0, 's'},
{"help", no_argument, 0, 'h'},
{0}
};
int opt = -1;
while ((opt = getopt_long(argc, argv, "sh", long_options, &i)) != -1) {
switch (opt) {
case 's':
Options.strict = true;
@ -111,10 +108,6 @@ void get_args(int argc, char *argv[]) {
break;
}
}
}
int main(int argc, char* argv[]) {
get_args(argc, argv);
argc -= optind;
argv += optind;
if (Options.help) {