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/*
* This software is Copyright (c) 1989, 1990, 1991 by Patrick J. Wolfe.
*
* Permission is hereby granted to copy, distribute or otherwise
* use any part of this package as long as you do not try to make
* money from it or pretend that you wrote it. This copyright
* notice must be maintained in any copy made.
*
* Use of this software constitutes acceptance for use in an AS IS
* condition. There are NO warranties with regard to this software.
* In no event shall the author be liable for any damages whatsoever
* arising out of or in connection with the use or performance of this
* software. Any use of this software is at the user's own risk.
*
* If you make modifications to this software that you feel
* increases it usefulness for the rest of the community, please
* email the changes, enhancements, bug fixes as well as any and
* all ideas to me. This software is going to be maintained and
* enhanced as deemed necessary by the community.
*
* Patrick J. Wolfe
* uunet!uiucuxc!kailand!pwolfe
* pwolfe@kailand.kai.com
*
* Additions of Xenix,Sun,DOS,VMS,AIX and OS2 key handling
* made by Mark Hessling (M.Hessling@qut.edu.au)
*
*/
static char RCSid[] = "$Id: getch.c,v 1.9 2011/02/20 05:58:48 mark Exp $";
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_ERRNO_H
# include <errno.h>
#endif
#if defined(USE_NCURSES)
# include <ncurses.h>
#else
# if defined(USE_EXTCURSES)
# include <cur00.h>
# else
# if defined(USE_XCURSES)
# include <curses.h>
# else
# include <curses.h>
# endif
# endif
#endif
/*
* Do special character handling if using ncurses, xcurses
*/
#if !defined(PDCURSES) || defined(USE_XCURSES)
#include <getch.h>
#define NORMAL 100
#define ESCAPE 200
#define FKEY 300
#define BRACK 400
/***********************************************************************/
#ifdef HAVE_PROTO
# ifdef MSWIN
int my_getch (WINDOW far *winptr)
# else
int my_getch (WINDOW *winptr)
# endif
#else
int my_getch (winptr)
# ifdef MSWIN
WINDOW far *winptr;
# else
WINDOW *winptr;
# endif
#endif
/***********************************************************************/
{
int c=0,tmp_c=(-1);
short state = NORMAL;
short fkeycount = 0;
while (1)
{
#ifdef VMS1
c = keypress();
#else
c = wgetch( winptr );
# if defined(USE_NCURSES) && defined(EINTR) && defined(KEY_RESIZE)
if ( c == ERR )
{
if ( errno == EINTR )
c = KEY_RESIZE;
else
{
if ( errno == 0 )
c = wgetch( winptr );
}
}
# endif
#endif
switch (state)
{
case BRACK:
switch (c)
{
/* Linux f1 thru f5 are <esc>[[A <esc>[[B ... <esc>[[E */
case 'A': case 'B': case 'C': case 'D': case 'E':
return KEY_F1 + (c - 'A');
default:
state = NORMAL;
break;
}
break;
case FKEY:
switch (c)
{
/* numeric function keys */
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
fkeycount = (fkeycount * 10) + (c - '0');
break;
case '~':
switch (fkeycount)
{
/* Find, Insert Here, Remove, Select, Prev Screen, Next Screen */
case 1: return KEY_Find;
case 2: return KEY_InsertHere;
case 3: return KEY_Remove;
case 4: return KEY_Select;
case 5: return KEY_PrevScreen;
case 6: return KEY_NextScreen;
/* vt220 function keys F1 to F10 */
case 11: case 12: case 13: case 14: case 15:
return KEY_F(1) + (fkeycount - 11);
case 17: case 18: case 19: case 20: case 21:
return KEY_F(6) + (fkeycount - 17);
/* vt220 function keys F11 to F20 */
case 23: case 24:
return KEY_F(11) + (fkeycount - 23);
case 25: case 26:
return KEY_F(49) + (fkeycount - 25);
case 28: case 29:
return KEY_F(51) + (fkeycount - 28);
case 31: case 32: case 33: case 34:
return KEY_F(53) + (fkeycount - 31);
/* vt220 function keys - non-standard */
case 37: case 38: case 39: case 40: case 41:
case 42: case 43: case 44: case 45: case 46:
case 47: case 48: case 49: case 50: case 51:
case 52: case 53: case 54: case 55: case 56:
case 57: case 58: case 59: case 60:
return KEY_F(13) + (fkeycount - 37);
default:
state = NORMAL;
}
break;
case 0: return KEY_HOME;
case 'A': return KEY_UP;
case 'B': return KEY_DOWN;
case 'C': return KEY_RIGHT;
case 'D': return KEY_LEFT;
case 'M': return KEY_NUMENTER;
case 'Z': return KEY_BTAB;
/* Xenix default key mappings */
case 'H': return KEY_HOME;
case 'F': return KEY_END;
case 'L': return KEY_InsertHere;
case 'G': return KEY_NextScreen;
case 'I': return KEY_PrevScreen;
case 'N': return KEY_F2;
case 'O': return KEY_F3;
case 'T': return KEY_F8;
case 'U': return KEY_F9;
case 'V': return KEY_F10;
case 'W': return KEY_F11;
case 'X': return KEY_F12;
/* VT[12]00 PF keys */
case 'P': case 'Q': case 'R': case 'S':
return KEY_PF1 + (c - 'P');
case 'j':
return KEY_PadStar;
case 'k':
return KEY_PadPlus;
case 'l':
return KEY_PadComma;
case 'm':
return KEY_PadMinus;
case 'n':
return KEY_PadPeriod;
case 'o':
return KEY_PadSlash;
case 'p':
return KEY_Pad0;
case 'r':
return KEY_C2;
case 's':
return KEY_C3;
case 't':
return KEY_B1;
case 'u':
return KEY_B2;
case 'v':
return KEY_B3;
case 'w':
return KEY_A1;
case 'x':
return KEY_A2;
case 'y':
return KEY_A3;
/* Sun Keyboard Function Keys */
case 'z':
switch (fkeycount)
{
/* SUN F1-F12 */
case 224: case 225: case 226: case 227: case 228:
case 229: case 230: case 231: case 232: case 233:
case 234: case 235:
return KEY_F(1) + (fkeycount - 224);
/* SUN S-F1-S-F12 */
case 324: case 325: case 326: case 327: case 328:
case 329: case 330: case 331: case 332: case 333:
case 334: case 335:
return KEY_F(13) + (fkeycount - 324);
/* SUN C-F1-C-F12 */
case 424: case 425: case 426: case 427: case 428:
case 429: case 430: case 431: case 432: case 433:
case 434: case 435:
return KEY_F(25) + (fkeycount - 424);
case 192: return KEY_F(49); /* L1 */
case 193: return KEY_F(50); /* L2 */
case 195: return KEY_UNDO;
case 292: return KEY_F(57); /* S-L1 */
case 293: return KEY_F(58); /* S-L2 */
case 214: return KEY_HOME;
case 414: return CTL_HOME;
case 215: return KEY_UP;
case 415: return CTL_UP;
case 216: return KEY_PrevScreen;
case 416: return CTL_PGUP;
case 217: return KEY_LEFT;
case 417: return CTL_LEFT;
case 219: return KEY_RIGHT;
case 419: return CTL_RIGHT;
case 220: return KEY_END;
case 420: return CTL_END;
case 221: return KEY_DOWN;
case 421: return CTL_DOWN;
case 222: return KEY_NextScreen;
case 422: return CTL_PGDN;
case 1: return KEY_BTAB;
case 2: return KEY_InsertHere;
case 3: return KEY_HOME;
case 4: return KEY_END;
case 5: return KEY_PrevScreen;
case 6: return KEY_NextScreen;
case 423: return KEY_PadComma;
default:
state = NORMAL;
}
break;
/* IBM AIX ???????? */
case 'q':
switch (fkeycount)
{
case 0: /* VT100/200 keypad */
#if defined(USE_NCURSES)
return KEY_C1;
#else
return KEY_PadComma;
#endif
/* AIX F1-F12 */
case 1: case 2: case 3: case 4: case 5:
case 6: case 7: case 8: case 9: case 10:
case 11: case 12:
return KEY_F(1) + (fkeycount - 1);
/* AIX SF1-F12 */
case 13: case 14: case 15: case 16: case 17:
case 18: case 19: case 20: case 21: case 22:
case 23: case 24:
return KEY_F(13)+ (fkeycount - 13);
/* AIX CF1-F12 */
case 25: case 26: case 27: case 28: case 29:
case 30: case 31: case 32: case 33: case 34:
case 35: case 36:
return KEY_F(25)+ (fkeycount - 25);
case 150: return KEY_PrevScreen;
case 146: return KEY_END;
case 154: return KEY_NextScreen;
case 139: return KEY_InsertHere;
default:
state = NORMAL;
}
break;
case '[':
state = BRACK;
break;
default:
state = NORMAL;
}
break;
case ESCAPE:
switch (c)
{
case 'O': /* vt100 numeric keypad application codes */
case '?': /* vt52 numeric keypad application codes */
case '[':
state = FKEY;
fkeycount = 0;
break;
/* VT52 PF keys */
case 'P': case 'Q': case 'R': case 'S':
return KEY_PF1 + (c - 'P');
default:
state = NORMAL;
}
break;
default:
switch (c)
{
case KEY_ESC:
#if defined(HAVE_NODELAY) && defined(HAVE_UNGETCH)
/* this code allows the user to use the ESC key */
nodelay(winptr,TRUE);
tmp_c = wgetch(winptr);
nodelay(winptr,FALSE);
if (tmp_c == ERR)
return(c);
ungetch(tmp_c);
#endif
state = ESCAPE;
break;
case CSI:
state = FKEY;
fkeycount = 0;
break;
default:
return (c);
}
}
}
}
#endif
#ifdef VMS1
#include iodef
#include descrip
/***********************************************************************/
short keypress()
/***********************************************************************/
{
struct { long length; char *address; } logical_name;
struct { short status; short length; short remainder; } iosb;
static char kb[] = { "sys$input" };
static short chan;
static char key = 0;
short new_key;
static short first = 1;
short status;
key = 0;
logical_name.length = strlen (kb);
logical_name.address = kb;
status = sys$assign (&logical_name, &chan, 0, 0);
if (status != 1)
return(-1);
status = SYS$QIOW(0, chan, IO$_READVBLK | IO$M_NOFILTR | IO$M_NOECHO
| IO$M_TIMED, &iosb, 0, 0, &key, 1,600, 0,0, 0, 0);
if (!key)
return (0);
new_key = (short)(key);
status = sys$dassgn (chan);
return (new_key);
}
#endif
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