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gcc style long option support and -std=foo added

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This commit is contained in:
Wolfgang Bumiller 2012-07-28 12:59:33 +02:00
parent 3c462539a6
commit ddfd44e2a4
2 changed files with 95 additions and 14 deletions
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7
gmqcc.h
View file

@ -1001,6 +1001,13 @@ static const size_t opt_flag_list_count = sizeof(opt_flag_list) / sizeof(opt_fla
/* other options: */
extern uint32_t opt_O; /* -Ox */
extern const char *opt_output; /* -o file */
extern int opt_standard;
enum {
STD_DEF,
STD_QCC,
STD_FTE
};
/*===================================================================*/
#define OPT_FLAG(i) (!! (opt_flags[(i)/32] & (1<< ((i)%32))))

102
main.c
View file

@ -23,11 +23,40 @@
#include "gmqcc.h"
uint32_t opt_flags[1 + (NUM_F_FLAGS / 32)];
uint32_t opt_O = 1;
const char *opt_output = "progs.dat";
uint32_t opt_O = 1;
const char *opt_output = "progs.dat";
int opt_standard = STD_DEF;
typedef struct { char *filename; int type; } argitem;
VECTOR_MAKE(argitem, items);
#define TYPE_QC 0
#define TYPE_ASM 1
#define TYPE_SRC 2
static const char *app_name;
static int usage() {
printf("Usage:\n");
printf("usage: %s [options] [files...]", app_name);
printf("options:\n"
" -h, --help show this help message\n"
" -o, --output=file output file, defaults to progs.dat\n"
" -a filename add an asm file to be assembled\n"
" -s filename add a progs.src file to be used\n");
printf(" -fflag enable a flag\n"
" -fno-flag disable a flag\n"
" -std standard select one of the following standards\n"
" -std=qcc original QuakeC\n"
" -std=fteqcc fteqcc QuakeC\n"
" -std=gmqcc this compiler (default)\n");
printf("\n");
printf("flags:\n"
" -fdarkplaces-string-table-bug\n"
" patch the string table to work with some bugged darkplaces versions\n"
" -fomit-nullbytes\n"
" omits certain null-bytes for a smaller output - requires a patched engine\n"
);
return -1;
}
@ -72,23 +101,23 @@ static bool options_witharg(int *argc_, char ***argv_, char **out) {
return true;
}
static bool options_long_witharg(const char *optname, int *argc_, char ***argv_, char **out) {
static bool options_long_witharg_all(const char *optname, int *argc_, char ***argv_, char **out, int ds, bool split) {
int argc = *argc_;
char **argv = *argv_;
size_t len = strlen(optname);
if (strncmp(argv[0]+2, optname, len))
if (strncmp(argv[0]+ds, optname, len))
return false;
/* it's --optname, check how the parameter is supplied */
if (argv[0][2+len] == '=') {
if (argv[0][ds+len] == '=') {
/* using --opt=param */
*out = argv[0]+2+len+1;
*out = argv[0]+ds+len+1;
return true;
}
if (argc < 2) /* no parameter was provided */
if (!split || argc < ds) /* no parameter was provided, or only single-arg form accepted */
return false;
/* using --opt param */
@ -97,12 +126,38 @@ static bool options_long_witharg(const char *optname, int *argc_, char ***argv_,
++*argv_;
return true;
}
static bool options_long_witharg(const char *optname, int *argc_, char ***argv_, char **out) {
return options_long_witharg_all(optname, argc_, argv_, out, 2, true);
}
static bool options_long_gcc(const char *optname, int *argc_, char ***argv_, char **out) {
return options_long_witharg_all(optname, argc_, argv_, out, 1, false);
}
static bool options_parse(int argc, char **argv) {
bool argend = false;
while (!argend && argc) {
while (!argend && argc > 1) {
char *argarg;
argitem item;
++argv;
--argc;
if (argv[0][0] == '-') {
/* All gcc-type long options */
if (options_long_gcc("std", &argc, &argv, &argarg)) {
if (!strcmp(argarg, "gmqcc") || !strcmp(argarg, "default"))
opt_standard = STD_DEF;
else if (!strcmp(argarg, "qcc"))
opt_standard = STD_QCC;
else if (!strcmp(argarg, "fte") || !strcmp(argarg, "fteqcc"))
opt_standard = STD_FTE;
else {
printf("Unknown standard: %s\n", argarg);
return false;
}
continue;
}
switch (argv[0][1]) {
/* -h, show usage but exit with 0 */
case 'h':
@ -140,6 +195,18 @@ static bool options_parse(int argc, char **argv) {
opt_output = argarg;
break;
case 'a':
case 's':
item.type = argv[0][1] == 'a' ? TYPE_ASM : TYPE_SRC;
if (!options_witharg(&argc, &argv, &argarg)) {
printf("option -a requires a filename %s\n",
(argv[0][1] == 'a' ? "containing QC-asm" : "containing a progs.src formatted list"));
return false;
}
item.filename = argarg;
items_add(item);
break;
case '-':
if (!argv[0][2]) {
/* anything following -- is considered a non-option argument */
@ -164,19 +231,26 @@ static bool options_parse(int argc, char **argv) {
break;
default:
break;
printf("Unknown parameter: %s\n", argv[0]);
return false;
}
}
++argv;
--argc;
else
{
/* it's a QC filename */
argitem item;
item.filename = argv[0];
item.type = TYPE_QC;
items_add(item);
}
}
return true;
}
int main(int argc, char **argv) {
/* char *app = &argv[0][0]; */
app_name = argv[0];
if (!options_parse(argc-1, argv+1)) {
if (!options_parse(argc, argv)) {
return usage();
}