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authorSlackerLinux85 <SlackerLinux85@55599770-6f59-11de-83c4-53937bf5378e>2017-04-13 11:30:00 +0000
committer/dev/humancontroller <devhc@example.com>2017-04-15 12:04:45 +0200
commit45973dc48641365b31475733bce7af9c3b8603a6 (patch)
treec9e4cdec39e41fe35c3f0ec96d4d9bda70d682d7 /src/tools/lcc/cpp/getopt.c
parent4d5120be9583309471102f8944234ee8a3a5738e (diff)
import the Slacker's QVM code base
Diffstat (limited to 'src/tools/lcc/cpp/getopt.c')
-rw-r--r--src/tools/lcc/cpp/getopt.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/tools/lcc/cpp/getopt.c b/src/tools/lcc/cpp/getopt.c
new file mode 100644
index 0000000..c4d1af7
--- /dev/null
+++ b/src/tools/lcc/cpp/getopt.c
@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <string.h>
+#define EPR fprintf(stderr,
+#define ERR(str, chr) if(opterr){EPR "%s%c\n", str, chr);}
+int opterr = 1;
+int optind = 1;
+int optopt;
+char *optarg;
+
+int
+lcc_getopt (int argc, char *const argv[], const char *opts)
+{
+ static int sp = 1;
+ int c;
+ char *cp;
+
+ if (sp == 1) {
+ if (optind >= argc ||
+ argv[optind][0] != '-' || argv[optind][1] == '\0')
+ return -1;
+ else if (strcmp(argv[optind], "--") == 0) {
+ optind++;
+ return -1;
+ }
+ }
+ optopt = c = argv[optind][sp];
+ if (c == ':' || (cp=strchr(opts, c)) == 0) {
+ ERR (": illegal option -- ", c);
+ if (argv[optind][++sp] == '\0') {
+ optind++;
+ sp = 1;
+ }
+ return '?';
+ }
+ if (*++cp == ':') {
+ if (argv[optind][sp+1] != '\0')
+ optarg = &argv[optind++][sp+1];
+ else if (++optind >= argc) {
+ ERR (": option requires an argument -- ", c);
+ sp = 1;
+ return '?';
+ } else
+ optarg = argv[optind++];
+ sp = 1;
+ } else {
+ if (argv[optind][++sp] == '\0') {
+ sp = 1;
+ optind++;
+ }
+ optarg = 0;
+ }
+ return c;
+}