<itemize>
<!-- <item><ref id="chdir" name="chdir"> -->
<!-- <item><ref id="getcwd" name="getcwd"> -->
+<item><ref id="getopt" name="getopt">
<!-- <item><ref id="lseek" name="lseek"> -->
<!-- <item><ref id="mkdir" name="mkdir"> -->
<!-- <item><ref id="read" name="read"> -->
<sect1>_poserror<label id="_poserror"><p>
<quote>
-<descrip>
+<descrip>
<tag/Function/Print an error message for the error in <tt/_oserror/.
<tag/Header/<tt/<ref id="stdio.h" name="stdio.h">/
<tag/Declaration/<tt/void __fastcall__ _poserror (const char* msg);/
</quote>
+<sect1>getcpu<label id="getcpu"><p>
+
+<quote>
+<descrip>
+<tag/Function/Determine on which CPU the program is running.
+<tag/Header/<tt/<ref id="6502.h" name="6502.h">/
+<tag/Declaration/<tt/unsigned char getcpu (void);/
+<tag/Description/The function checks on which CPU the code is running. It
+returns one of the constants<itemize>
+<item><tt/CPU_6502/
+<item><tt/CPU_65C02/
+<item><tt/CPU_65816/
+</itemize>
+<tag/Limits/<itemize>
+<item>Other, more exotic CPU types are not disinguished.
+</itemize>
+<tag/Availability/cc65
+<tag/Example/None.
+</descrip>
+</quote>
+
+
<sect1>getenv<label id="getenv"><p>
<quote>
</quote>
-<sect1>get
cpu<label id="getcpu"><p>
+<sect1>get
opt<label id="getopt"><p>
<quote>
<descrip>
-<tag/Function/Determine on which CPU the program is running.
-<tag/Header/<tt/<ref id="6502.h" name="6502.h">/
-<tag/Declaration/<tt/unsigned char getcpu (void);/
-<tag/Description/The function checks on which CPU the code is running. It
-returns one of the constants<itemize>
-<item><tt/CPU_6502/
-<item><tt/CPU_65C02/
-<item><tt/CPU_65816/
-</itemize>
-<tag/Limits/<itemize>
-<item>Other, more exotic CPU types are not disinguished.
+<tag/Function/Parse command line options.
+<tag/Header/<tt/<ref id="unistd.h" name="unistd.h">/
+<tag/Declaration/<tt/int __fastcall__ getopt (int argc, char* const* argv,
+const char* optstring);/
+<tag/Description/The function parses command line arguments, <tt/argc/ and
+<tt/argv/ are the argument count and array passed to <tt/main/. <tt/optstring/
+is a string that contains command line option characters. If a character in
+<tt/optstring/ is followed by a colon, the option requires an argument. An
+option on the command line is recognized if it is one of the option characters
+preceeded by a '-'.
+<tt/getopt/ must be called repeatedly. It will return each option character
+found on the command line and <tt/EOF/ (-1) if there is no other option. An
+option argument is placed in <tt/optarg/, the index of the next element on the
+command line to be processed is placed in <tt/optind/.
+<tag/Limits/<itemize>
+<item>The implementation will not reorder options. A non option on the command
+line will terminate option processing. All remaining arguments are not
+recognized as options, even if the start with a '-' character.
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
</itemize>
-<tag/Availability/cc65
+<tag/Availability/POSIX.2
<tag/Example/None.
</descrip>
</quote>
fsetpos.o \
ftell.o \
getchar.o \
+ getopt.o \
gets.o \
gmtime.o \
locale.o \
--- /dev/null
+/*
+ * This is part of a changed public domain getopt implementation that
+ * had the following text on top:
+ *
+ * I got this off net.sources from Henry Spencer.
+ * It is a public domain getopt(3) like in System V.
+ * I have made the following modifications:
+ *
+ * A test main program was added, ifdeffed by GETOPT.
+ * This main program is a public domain implementation
+ * of the getopt(1) program like in System V. The getopt
+ * program can be used to standardize shell option handling.
+ * e.g. cc -DGETOPT getopt.c -o getopt
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define ARGCH ':'
+#define BADCH '?'
+#define EMSG ""
+
+int opterr = 1; /* useless, never set or used */
+int optind = 1; /* index into parent argv vector */
+int optopt; /* character checked for validity */
+
+char *optarg; /* argument associated with option */
+
+#define tell(s) fputs(*argv,stderr);fputs(s,stderr); \
+ fputc(optopt,stderr);fputc('\n',stderr);return(BADCH);
+
+int __fastcall__ getopt (int argc, char* const* argv, const char* optstring)
+/* Get option letter from argument vector */
+{
+ static char *place = EMSG; /* option letter processing */
+
+ register char *oli; /* option letter list index */
+
+ if (!*place) { /* update scanning pointer */
+ if (optind >= argc || *(place = argv[optind]) != '-' || !*++place) {
+ return (EOF);
+ }
+ if (*place == '-') {
+ /* found "--" */
+ ++optind;
+ return (EOF);
+ }
+ }
+
+ /* option letter okay? */
+ if ((optopt = (int) *place++) == ARGCH ||
+ !(oli = strchr (optstring, optopt))) {
+ if (!*place) {
+ ++optind;
+ }
+ tell (": illegal option -- ");
+ }
+ if (*++oli != ARGCH) {
+ /* don't need argument */
+ optarg = NULL;
+ if (!*place) {
+ ++optind;
+ }
+ } else {
+ /* need an argument */
+ if (*place) {
+ /* no white space */
+ optarg = place;
+ }
+ else if (argc <= ++optind) { /* no arg */
+ place = EMSG;
+ tell (": option requires an argument -- ");
+ } else {
+ /* white space */
+ optarg = argv[optind];
+ }
+ place = EMSG;
+ ++optind;
+ }
+ return (optopt); /* dump back option letter */
+}
+
--- /dev/null
+/*
+ * This is part of a changed public domain getopt implementation that
+ * had the following text on top:
+ *
+ * I got this off net.sources from Henry Spencer.
+ * It is a public domain getopt(3) like in System V.
+ * I have made the following modifications:
+ *
+ * A test main program was added, ifdeffed by GETOPT.
+ * This main program is a public domain implementation
+ * of the getopt(1) program like in System V. The getopt
+ * program can be used to standardize shell option handling.
+ * e.g. cc -DGETOPT getopt.c -o getopt
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define ARGCH ':'
+#define BADCH '?'
+#define ENDARGS "--"
+
+int main (int argc, char **argv)
+{
+ char *optstring = argv[1];
+
+ char *argv0 = argv[0];
+
+ int opterr = 0;
+
+ int C;
+
+ char *opi;
+
+ if (argc == 1) {
+ fprintf (stderr, "Usage: %s optstring args\n", argv0);
+ exit (1);
+ }
+ argv++;
+ argc--;
+ argv[0] = argv0;
+ while ((C = getopt (argc, argv, optstring)) != EOF) {
+ if (C == BADCH)
+ opterr++;
+ printf ("-%c ", C);
+ opi = strchr (optstring, C);
+ if (opi && opi[1] == ARGCH)
+ if (optarg)
+ printf ("\"%s\" ", optarg);
+ else
+ opterr++;
+ }
+ printf ("%s", ENDARGS);
+ while (optind < argc)
+ printf (" \"%s\"", argv[optind++]);
+ putchar ('\n');
+ return opterr;
+}
+
projects / cc65 / commitdiff