/* Cur: Provide cursor addressing for shell scripts.
 *
 * Cur performs the same functions as echo, with 2 differences:
 *  1. 
 *     a. Arguments of the form -xx result in the generation of the capability
 *        string xx. The two special strings "cm" and "cs" are handled by
 *        cur ... -cm x y ... and ... -cs lo hi ...
 *     b. Arguments of the form #xx return the value of the numeric capability
 *        xx.
 *     c. Arguments of the form +terminal force cur to assume that as the
 *        terminal type. Any number of these can be included, and will be
 *        evaluated when encountered.
 *  2. No newline is appended to the echoed string.
 *
 * Syntax: cur [string|-xx|#xx|+term]...
 *
 * Other notes: The code is obvious.
 */
#include <stdio.h>
#include "termlib.h"

extern char *junkptr;

main(ac, av)
int ac; char **av;
{
	int line, col, outch();
	char *val;

	tinit(getenv("TERM"));

	while(--ac)
		if(**++av=='-') {
			if(val=tgetstr(*av+1, &junkptr)) {
				if(strcmp(*av+1, "cm") &&
				   strcmp(*av+1, "cs"))
					tputs(val, 1, outch);
				else {
					col = atoi(*++av); --ac;
					line = atoi(*++av); --ac;
					tputs(tgoto(val, col, line), 0, outch);
				}
			}
		} else if(**av=='#') {
			if(val = tgetstr(*av+1, &junkptr))
				fputs(val, stdout);
		} else if(**av=='+') {
			tinit(*av+1);
		} else
			fputs(*av, stdout);
}

outch(c) char c; { putchar(c); }