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rgbasm: use getopt(3) instead of hand-rolled flag parsing

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This commit is contained in:
bentley
2010-01-15 19:40:35 -07:00
parent c3e212d399
commit 5694d6907c
1 changed files with 42 additions and 18 deletions
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58
src/asm/main.c
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@@ -11,6 +11,7 @@
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "asm/symbol.h"
#include "asm/fstack.h"
@@ -253,12 +254,14 @@ PrintUsage(void)
int
main(int argc, char *argv[])
{
int ch;
char *ep;
struct sOptions newopt;
char *tzMainfile;
int argn = 1;
argc -= 1;
if (argc == 0)
if (argc == 1)
PrintUsage();
/* yydebug=1; */
@@ -270,35 +273,56 @@ main(int argc, char *argv[])
DefaultOptions.binary[0] = '0';
DefaultOptions.binary[1] = '1';
DefaultOptions.fillchar = 0;
opt_SetCurrentOptions(&DefaultOptions);
while (argv[argn][0] == '-' && argc) {
switch (argv[argn][1]) {
case 'h':
PrintUsage();
newopt = CurrentOptions;
while ((ch = getopt(argc, argv, "b:g:i:o:z:")) != -1) {
switch (ch) {
case 'b':
if (strlen(optarg) == 2) {
newopt.binary[0] = optarg[1];
newopt.binary[1] = optarg[2];
} else {
errx(5, "Must specify exactly 2 characters for option 'b'");
}
case 'g':
if (strlen(optarg) == 4) {
newopt.gbgfx[0] = optarg[1];
newopt.gbgfx[1] = optarg[2];
newopt.gbgfx[2] = optarg[3];
newopt.gbgfx[3] = optarg[4];
} else {
errx(5, "Must specify exactly 4 characters for option 'g'");
}
break;
case 'i':
fstk_AddIncludePath(&(argv[argn][2]));
fstk_AddIncludePath(optarg);
break;
case 'o':
out_SetFileName(&(argv[argn][2]));
out_SetFileName(optarg);
break;
case 'g':
case 'b':
case 'z':
opt_Parse(&argv[argn][1]);
newopt.fillchar = strtoul(optarg, &ep, 0);
if (optarg[0] == '\0' || *ep != '\0')
errx(5, "Invalid argument for option 'z'");
if (newopt.fillchar < 0 || newopt.fillchar > 0xFF)
errx(5, "Argument for option 'z' must be between 0 and 0xFF");
break;
default:
errx(5, "Unknown option '%c'", argv[argn][1]);
PrintUsage();
}
argn += 1;
argc -= 1;
}
argc -= optind;
argv += optind;
opt_SetCurrentOptions(&newopt);
DefaultOptions = CurrentOptions;
/* tzMainfile=argv[argn++]; argc-=1; */
tzMainfile = argv[argn];
tzMainfile = argv[argc - 1];
setuplex();