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MiNT 0.96 pl14

#include <stdio.h>

#include <ioctl.h>

#include <string.h>



#define MAXKEY 32

#ifndef TIOCGXKEY

#define TIOCGXKEY	(('T'<< 8) | 13)

#define TIOCSXKEY	(('T'<< 8) | 14)

#endif



struct xkey {

	short xk_num;

	char xk_def[8];

} xk;



char *kname[MAXKEY] = {

"f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10",

"F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10",

"up", "down", "right", "left", "help", "undo", "insert", "home",

"UP", "DOWN", "RIGHT", "LEFT"

};



char buf[80];



char *unescape(char *string)

{

	char *u = buf;

	char c;



	while (c = *string++) {

		if (c == '\\') {

			c = *string++;

			if (!c) break;

		}

		else if (c == '^') {

			c = *string++;

			if (!c) break;

			else if (c == '?') c = 127;

			else c &= 0x1f;

		}

		*u++ = c;

	}

	*u++ = 0;

	return buf;

}



char *escape(char *string)

{

	char *e, c;



	e = buf;

	while ( c = *string++ ) {

		if (c < ' ' && c > 0) {

			*e++ = '^';

			c += '@';

		}

		else if (c == 127) {

			*e++ = '^';

			c = '?';

		}

		else if (c == '\\' || c == '^')

			*e++ = '\\';

		*e++ = c;

	}

	*e++ = 0;

	return buf;

}



void

displaykeys()

{

	int i, r;

	int col = 0, maxcol;

	char *e;



	maxcol = 80;		/* really should do ioctl to get this */

	for (i = 0; i < MAXKEY; i++) {

		xk.xk_num = i;

		r = ioctl(0, TIOCGXKEY, &xk);

		if (r) {

			perror("ioctl");

			exit(1);

		}

		e = escape(xk.xk_def);

		col += (r = strlen(kname[i]) + strlen(e) + 2);

		if (col >= maxcol) {

			printf("\n");

			col = r;

		}

		printf("%s %s ", kname[i], e);

	}

	printf("\n");

}



void

definekey(char *key, char *def)

{

	int i;



	for (i = 0; i < MAXKEY; i++)

		if (!strcmp(kname[i], key)) break;

	if (i >= MAXKEY) {

		fprintf(stderr, "Unknown key: %s\n", key);

		return;

	}

	strncpy(xk.xk_def, unescape(def), 7);

	xk.xk_num = i;

	xk.xk_def[7] = 0;

	i = ioctl(0, TIOCSXKEY, &xk);

	if (i) {

		perror("ioctl");

	}

}



int

main(int argc, char **argv)

{

	char *progname;

	char *key, *def;



	progname = *argv++;



	if (!isatty(0)) {

		fprintf(stderr, "%s must be run on a terminal\n", progname);

		return 1;

	}

	if (!*argv) {

		displaykeys();

		return 0;

	}

	while (*argv) {

		key = *argv++;

		def = *argv++;

		if (!def) {

			fprintf(stderr, "Usage: %s [key def]...\n", progname);

			return 2;

		}

		definekey(key, def);

	}

	return 0;

}

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