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/*
* Copyright (c) 1995-1999 Joey Hess (joey@kitenet.net)
* All rights reserved. See COPYING for full copyright information (GPL).
*/
#include "global.h"
#include "slang.h"
#include <unistd.h>
#define TIMEOUT 2 /* 2/10 of a second */
/* Get a key from keyboard, handling escape properly. */
int getch (void) {
int ch;
if (tcgetpgrp(0) == -1) return 033; /* Detect if the terminal went away. */
while (SLang_input_pending(1000) == 0)
continue;
ch = SLang_getkey();
if (ch == 033) { /* escape */
if (SLang_input_pending(TIMEOUT) == 0) {
return 033;
}
else {
/* If two or more escapes are queued up, assume the first is a
* "real" escape, and not part of some escape sequance. */
int ch2 = SLang_getkey();
SLang_ungetkey(ch2);
if (ch2 == 033) {
return 033;
}
}
}
SLang_ungetkey(ch);
return SLkp_getkey();
}
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