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Refactor scan_includes

This commit is contained in:
yenatch 2017-08-20 12:32:15 -04:00
parent 80888726b9
commit 885af5e543
1 changed files with 50 additions and 57 deletions
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107
tools/scan_includes.c
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@ -19,16 +19,8 @@ struct Options {
struct Options Options = {0}; struct Options Options = {0};
void scan_file(char* filename) { void scan_file(char* filename) {
FILE* f; FILE *f = fopen(filename, "rb");
long size;
char* orig;
char* buffer;
char* include;
int length;
f = fopen(filename, "r");
if (!f) { if (!f) {
if (Options.strict) { if (Options.strict) {
fprintf(stderr, "Could not open file: '%s'\n", filename); fprintf(stderr, "Could not open file: '%s'\n", filename);
@ -39,65 +31,70 @@ void scan_file(char* filename) {
} }
fseek(f, 0, SEEK_END); fseek(f, 0, SEEK_END);
size = ftell(f); long size = ftell(f);
rewind(f); rewind(f);
buffer = malloc(size + 1); char *buffer = malloc(size + 1);
orig = buffer; char *orig = buffer;
fread(buffer, 1, size, f); size = fread(buffer, 1, size, f);
buffer[size] = '\0'; buffer[size] = '\0';
fclose(f); fclose(f);
for (; buffer && (buffer - orig < size); buffer++) { 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_include = false;
bool is_incbin = false; bool is_incbin = false;
if ((strncmp(buffer, "INCBIN", 6) == 0) || (strncmp(buffer, "incbin", 6) == 0)) { switch (*buffer) {
is_incbin = true; case ';':
} else if ((strncmp(buffer, "INCLUDE", 7) == 0) || (strncmp(buffer, "include", 7) == 0)) { buffer = strchr(buffer, '\n');
is_include = true; if (!buffer) {
} fprintf(stderr, "%s: no newline at end of file\n", filename);
if (is_incbin || is_include) { }
buffer = strchr(buffer, '"') + 1;
if (!buffer) {
break; break;
}
length = strcspn(buffer, "\""); case 'i':
include = malloc(length + 1); case 'I':
strncpy(include, buffer, length); if ((strncmp(buffer, "INCBIN", 6) == 0) || (strncmp(buffer, "incbin", 6) == 0)) {
include[length] = '\0'; is_incbin = true;
printf("%s ", include); } else if ((strncmp(buffer, "INCLUDE", 7) == 0) || (strncmp(buffer, "include", 7) == 0)) {
if (is_include) { is_include = true;
scan_file(include); }
} if (is_incbin || is_include) {
free(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); free(orig);
} }
void get_args(int argc, char *argv[]) { int main(int argc, char* argv[]) {
while (1) { int i = 0;
struct option long_options[] = { struct option long_options[] = {
{"strict", no_argument, 0, 's'}, {"strict", no_argument, 0, 's'},
{"help", no_argument, 0, 'h'}, {"help", no_argument, 0, 'h'},
{0} {0}
}; };
int i = 0; int opt = -1;
int opt = getopt_long(argc, argv, "sh", long_options, &i); while ((opt = getopt_long(argc, argv, "sh", long_options, &i)) != -1) {
if (opt == -1) {
break;
}
switch (opt) { switch (opt) {
case 's': case 's':
Options.strict = true; Options.strict = true;
@ -111,10 +108,6 @@ void get_args(int argc, char *argv[]) {
break; break;
} }
} }
}
int main(int argc, char* argv[]) {
get_args(argc, argv);
argc -= optind; argc -= optind;
argv += optind; argv += optind;
if (Options.help) { if (Options.help) {