driver.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <math.h>
#include <errno.h>
float deltx = 4095.0;
float delty = 4095.0;
main(argc,argv) char **argv; {
int std=1;
FILE *fin;
while(argc-- > 1) {
if(*argv[1] == '-')
switch(argv[1][1]) {
case 'l':
deltx = atoi(&argv[1][2]) - 1;
break;
case 'w':
delty = atoi(&argv[1][2]) - 1;
break;
}
else {
std = 0;
if ((fin = fopen(argv[1], "r")) == NULL) {
fprintf(stderr, "can't open %s\n", argv[1]);
exit(1);
}
fplt(fin);
}
argv++;
}
if (std)
fplt( stdin );
exit(0);
}
fplt(fin) FILE *fin; {
int c;
char s[256];
int xi,yi,x0,y0,x1,y1,r,dx,n,i;
int pat[256];
openpl();
while((c=getc(fin)) != EOF){
switch(c){
case 'm':
xi = getsi(fin);
yi = getsi(fin);
move(xi,yi);
break;
case 'l':
x0 = getsi(fin);
y0 = getsi(fin);
x1 = getsi(fin);
y1 = getsi(fin);
line(x0,y0,x1,y1);
break;
case 't':
getsd(s,fin);
label(s);
break;
case 'e':
erase();
break;
case 'p':
xi = getsi(fin);
yi = getsi(fin);
point(xi,yi);
break;
case 'n':
xi = getsi(fin);
yi = getsi(fin);
cont(xi,yi);
break;
case 's':
x0 = getsi(fin);
y0 = getsi(fin);
x1 = getsi(fin);
y1 = getsi(fin);
space(x0,y0,x1,y1);
break;
case 'a':
xi = getsi(fin);
yi = getsi(fin);
x0 = getsi(fin);
y0 = getsi(fin);
x1 = getsi(fin);
y1 = getsi(fin);
arc(xi,yi,x0,y0,x1,y1);
break;
case 'c':
xi = getsi(fin);
yi = getsi(fin);
r = getsi(fin);
circle(xi,yi,r);
break;
case 'f':
getsd(s,fin);
linemod(s);
break;
case 'd':
xi = getsi(fin);
yi = getsi(fin);
dx = getsi(fin);
n = getsi(fin);
for(i=0; i<n; i++)pat[i] = getsi(fin);
dot(xi,yi,dx,n,pat);
break;
}
}
closepl();
}
getsi(fin) FILE *fin; { /* get an integer stored in 2 ascii bytes. */
short a, b;
if((b = getc(fin)) == EOF)
return(EOF);
if((a = getc(fin)) == EOF)
return(EOF);
a = a<<8;
return(a|b);
}
getsd(s,fin) char *s; FILE *fin; {
for( ; *s = getc(fin); s++)
if(*s == '\n')
break;
*s = '\0';
return;
}
matherr(x)
struct exception *x;
{
if(x->type==DOMAIN)
{errno=EDOM;
if(!strcmp("log",x->name))x->retval = (-HUGE);
else x->retval = 0;
return(1);
}
else if ((x->type)==SING)
{errno=EDOM;
x->retval = (-HUGE);
return(1);
}
else return(0);
}