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/*
* XaoS, a fast portable realtime fractal zoomer
* Copyright (C) 1996,1997 by
*
* Jan Hubicka (hubicka@paru.cas.cz)
* Thomas Marsh (tmarsh@austin.ibm.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef _plan9_
#include <u.h>
#include <libc.h>
#else
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#endif
#include <config.h>
#include <param.h>
#include <xmenu.h>
#include <version.h>
#include <xerror.h>
#define MAXPARAMS 40
static CONST struct params *params[40];
int nparams;
int params_parser(int argc, char **argv)
{
int i, p = 0, d;
int ie = 0;
int is;
CONST struct params *par = NULL;
int error = 0;
int found;
for (i = 1; i < argc && !error; i++) {
found = 0;
#ifdef MACOSX
if (strncmp("-psn", argv[i], 4) == 0)
continue;
#endif
if (!strcmp("-help", argv[i])) {
error = 1;
break;
}
for (d = 0; d < nparams; d++) {
par = params[d];
for (p = 0; par[p].name != NULL && !error; p++) {
if (!strcmp(par[p].name, argv[i])) {
found = 1;
is = i;
switch (par[p].type) {
case P_SWITCH:
*((int *) par[p].value) = 1;
break;
case P_NUMBER:
{
int n;
if (i == argc - 1) {
x_error
("parameter %s requires numeric value.",
argv[i]);
error = 1;
break;
}
if (sscanf(argv[i + 1], "%i", &n) != 1) {
x_error("parameter for %s is not number.",
argv[i]);
error = 1;
break;
}
*((int *) par[p].value) = n;
i++;
}
break;
case P_FLOAT:
{
float n;
if (i == argc - 1) {
x_error
("parameter %s requires floating point numeric value.",
argv[i]);
error = 1;
break;
}
if (sscanf(argv[i + 1], "%f", &n) != 1) {
x_error
("parameter for %s is not floating point number.",
argv[i]);
error = 1;
break;
}
*((float *) par[p].value) = n;
i++;
}
break;
case P_STRING:
{
if (i == argc - 1) {
x_error
("parameter %s requires string value.",
argv[i]);
error = 1;
break;
}
i++;
*((char **) par[p].value) = *(argv + i);
}
}
ie = i;
i = is;
}
}
}
if (d == nparams && !found) {
i = menu_processargs(i, argc, argv);
if (i < 0) {
error = 1;
break;
} else
i++;
} else
i = ie;
}
if (error) {
const char *name[] = {
"",
"number",
"string",
"f.point"
};
#ifndef _plan9_
printf(" XaoS" XaoS_VERSION " help text\n");
printf
(" (This help is genereated automagically. I am sorry for all inconvencies)\n\n");
#endif
printf("option string param description\n\n");
for (d = 0; d < nparams; d++) {
par = params[d];
for (p = 0; par[p].name != NULL; p++) {
if (par[p].type == P_HELP)
printf("\n%s\n\n", par[p].help);
else if (!par[p].type)
printf(" %-14s %s\n", par[p].name, par[p].help);
else
printf(" %-14s %s\n%14s %s\n", par[p].name,
name[par[p].type], "", par[p].help);
}
if (p == 0)
printf(" No options avaiable for now\n");
}
menu_printhelp();
return 0;
}
return (1);
}
void params_register(CONST struct params *par)
{
params[nparams++] = par;
}
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