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Comment:Fixed command line processing and added argument re-ordering. Also, added a global variable lc_optind to indicate where we were in the argv array.
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SHA1: 9d733cc5a22c40da391097c606dc08ddd94a4209
User & Date: rkeene on 2004-10-28 21:11:49
Other Links: manifest | tags
Context
2004-10-28
21:32
Added a variable type "BOOL_BY_EXISTANCE" that enables things just by being specified. check-in: 307def9899 user: rkeene tags: trunk
21:11
Fixed command line processing and added argument re-ordering. Also, added a global variable lc_optind to indicate where we were in the argv array. check-in: 9d733cc5a2 user: rkeene tags: trunk
2004-10-26
13:19
Updated man pages. Updated lc_process_files() to work. check-in: 92a0e45fc6 user: rkeene tags: trunk
Changes
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Modified configure.in from [4423e690ac] to [e198fad6ec]. 

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AC_REVISION($Revision $)
AC_INIT(libconfig, 0.0.3)
AC_INIT(libconfig, 0.0.4)
AC_CONFIG_HEADER(config.h)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_LN_S
︙

Modified libconfig.c from [683ee83d44] to [a80690a998].

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#ifdef HAVE_PWD_H
#include <pwd.h>
#endif

struct lc_varhandler_st *varhandlers = NULL;
lc_err_t lc_errno = LC_ERR_NONE;
int lc_optind = 0;

static int lc_process_var_string(void *data, const char *value) {
	char **dataval;

	dataval = data;
	*dataval = strdup(value);
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	return(0);
}

static int lc_process_cmdline(int argc, char **argv) {
	struct lc_varhandler_st *handler = NULL;
	char *cmdarg = NULL, *cmdoptarg = NULL;
	char *lastcomponent_handler = NULL;
	char **newargv = NULL;
	char *usedargv = NULL;
	int cmdargidx = 0;
	int newargvidx = 0;
	int retval = 0, chkretval = 0;
	int ch = 0;

	/* Allocate "argc + 1" (+1 for the NULL terminator) elements. */
	newargv = malloc((argc + 1) * sizeof(*newargv));
	if (newargv == NULL) {
		lc_errno = LC_ERR_ENOMEM;
		return(-1);
	}
	newargv[newargvidx++] = argv[0];
	newargv[argc] = NULL;

	/* Allocate space to indicate which arguments have been used. */
	usedargv = malloc(argc * sizeof(*usedargv));
	if (usedargv == NULL) {
		lc_errno = LC_ERR_ENOMEM;
		return(-1);
	}
	for (cmdargidx = 0; cmdargidx < argc; cmdargidx++) {
		usedargv[cmdargidx] = 0;
	}

	for (cmdargidx = 1; cmdargidx < argc; cmdargidx++) {
		cmdarg = argv[cmdargidx];

		/* Make sure we have an argument here. */
		if (cmdarg == NULL) {
			break;
		}

		/* If the argument isn't an option, abort. */
		if (cmdarg[0] != '-') {
			continue;
		}

		/* Setup a pointer in the new array for the actual argument. */
		newargv[newargvidx++] = cmdarg;
		usedargv[cmdargidx] = 1;

		/* Then shift the argument past the '-' so we can ignore it. */
		*cmdarg++;

		/* Handle long options. */
		if (cmdarg[0] == '-') {
			*cmdarg++;

			/* Don't process arguments after the '--' option. */
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				    handler->type == LC_VAR_SECTIONSTART ||
				    handler->type == LC_VAR_SECTIONEND ||
				    handler->type == LC_VAR_UNKNOWN) {
					continue;
				}

				/* Find the last part of the variable and compare it with 
				   the option being processed. */
				lastcomponent_handler = strrchr(handler->var, '.');
				if (lastcomponent_handler == NULL) {
					lastcomponent_handler = handler->var;
				} else {
					*lastcomponent_handler++;
				   the option being processed, if a wildcard is given. */
				if (handler->var[0] == '*' && handler->var[1] == '.') {
					lastcomponent_handler = strrchr(handler->var, '.');
					if (lastcomponent_handler == NULL) {
						lastcomponent_handler = handler->var;
					} else {
						*lastcomponent_handler++;
					}
				} else {
					/* Disallow use of the fully qualified name
					   since there was no sectionstart portion
					   we cannot allow it to handle children of it. */
					if (strchr(cmdarg, '.') != NULL) {
						continue;
					}
					lastcomponent_handler = handler->var;
				}

				/* Ignore this handler if they don't match. */
				if (strcasecmp(lastcomponent_handler, cmdarg) != 0) {
					continue;
				}

				if (handler->type == LC_VAR_NONE) {
					cmdoptarg = NULL;
				} else {
					cmdargidx++;
					if (cmdargidx >= argc) {
						PRINTERR("Argument required.");
						lc_errno = LC_ERR_BADFORMAT;
						return(-1);
					}
					cmdoptarg = argv[cmdargidx];
					newargv[newargvidx++] = cmdoptarg;
					usedargv[cmdargidx] = 1;
				}

				chkretval = lc_handle(handler, handler->var, NULL, cmdoptarg, LC_FLAGS_CMDLINE);
				if (chkretval < 0) {
					retval = -1;
				}
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						cmdargidx++;
						if (cmdargidx >= argc) {
							PRINTERR("Argument required.");
							lc_errno = LC_ERR_BADFORMAT;
							return(-1);
						}
						cmdoptarg = argv[cmdargidx];
						newargv[newargvidx++] = cmdoptarg;
						usedargv[cmdargidx] = 1;
					}

					chkretval = lc_handle(handler, handler->var, NULL, cmdoptarg, LC_FLAGS_CMDLINE);
					if (chkretval < 0) {
						retval = -1;
					}

					break;
				}

				if (handler == NULL) {
					PRINTERR("Unknown option: -%c", ch);
					lc_errno = LC_ERR_INVCMD;
					return(-1);
				}
			}
		}
	}

	if (retval >= 0) {
		lc_optind = newargvidx;
		for (cmdargidx = 1; cmdargidx < argc; cmdargidx++) {
			if (usedargv[cmdargidx] != 0) {
				continue;
			}
			
			cmdarg = argv[cmdargidx];

			newargv[newargvidx++] = cmdarg;
		}
		for (cmdargidx = 1; cmdargidx < argc; cmdargidx++) {
			argv[cmdargidx] = newargv[cmdargidx];
		}
	}

	return(retval);
}


int lc_process_var(const char *var, const char *varargs, const char *value, lc_flags_t flags) {
	struct lc_varhandler_st *handler = NULL;
︙

Modified libconfig.h.in from [e6a141a35f] to [e26997901c].

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        LC_ERR_NONE,
        LC_ERR_INVCMD,
        LC_ERR_INVSECTION,
        LC_ERR_INVDATA,
        LC_ERR_BADFORMAT,
        LC_ERR_CANTOPEN,
        LC_ERR_CALLBACK,
	LC_ERR_ENOMEM
        LC_ERR_ENOMEM
} lc_err_t;

__BLANK_LINE__

int lc_process(int argc, char **argv, const char *appname, lc_conf_type_t type, const char *extra);
int lc_register_callback(const char *var, char opt, lc_var_type_t type, int (*callback)(const char *, const char *, const char *, const char *, lc_flags_t, void *), void *extra);
int lc_register_var(const char *var, lc_var_type_t type, void *data, char opt);
lc_err_t lc_geterrno(void);
char *lc_geterrstr(void);

__BLANK_LINE__

!define LC_CBRET_IGNORESECTION (255)
!define LC_CBRET_OKAY (0)
!define LC_CBRET_ERROR (-1)

__BLANK_LINE__

extern int lc_optind;

__BLANK_LINE__

!endif

Modified test-lc.c from [8d667bd176] to [2a94d4df07].

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}

int main(int argc, char **argv) {
	char *joeval = NULL;
	long long xval = -1;
	int onoff = -1;
	int lcpret = -1;
	int i = 0;
	lc_err_t errs;

	lc_register_var("Section", LC_VAR_SECTION, NULL, 0);
	lc_register_var("Somesection", LC_VAR_SECTION, NULL, 0);
	lc_register_var("Section.Test", LC_VAR_STRING, &joeval, 'j');
	lc_register_var("bob", LC_VAR_SIZE_LONG_LONG, &xval, 's');
	lc_register_var("Somesection.Free", LC_VAR_BOOL, &onoff, 0);
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	if (joeval != NULL) {
		PRINTERR("joeval = \"%s\"", joeval);
	} else {
		PRINTERR("joeval = \"(null)\"");
	}
	PRINTERR("xval = %lli", xval);
	PRINTERR("onoff = %i", onoff);
	for (i = lc_optind; i < argc; i++) {
		PRINTERR("argv[%i] = \"%s\"", i, argv[i]);
	}

	return(0);
}

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