[BACK]Return to help.c CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / games / larn

File: [cvs.NetBSD.org] / src / games / larn / help.c (download)

Revision 1.9, Tue Jun 19 05:30:43 2012 UTC (8 years, 4 months ago) by dholland
Branch: MAIN
CVS Tags: yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, phil-wifi-20191119, phil-wifi-20190609, phil-wifi, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-merge-20190127, pgoyette-compat-base, pgoyette-compat-20190127, pgoyette-compat-20190118, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, netbsd-9-base, netbsd-9-1-RELEASE, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, netbsd-9, netbsd-8-base, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, matt-nb8-mediatek-base, matt-nb8-mediatek, localcount-20160914, is-mlppp-base, is-mlppp, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, agc-symver-base, agc-symver, HEAD
Changes since 1.8: +5 -5 lines

WARNS=5

/*	$NetBSD: help.c,v 1.9 2012/06/19 05:30:43 dholland Exp $	*/

/* help.c		Larn is copyrighted 1986 by Noah Morgan. */
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: help.c,v 1.9 2012/06/19 05:30:43 dholland Exp $");
#endif /* not lint */

#include <unistd.h>

#include "header.h"
#include "extern.h"

static void retcont(void);
static int openhelp(void);

/*
 *	help function to display the help info
 *
 *	format of the .larn.help file
 *
 *	1st character of file:	# of pages of help available (ascii digit)
 *	page (23 lines) for the introductory message (not counted in above)
 *	pages of help text (23 lines per page)
 */
void
help(void)
{
	int    i, j;
#ifndef VT100
	char            tmbuf[128];	/* intermediate translation buffer
					 * when not a VT100 */
#endif	/* VT100 */
	if ((j = openhelp()) < 0)
		return;		/* open the help file and get # pages */
	for (i = 0; i < 23; i++)
		lgetl();	/* skip over intro message */
	for (; j > 0; j--) {
		clear();
		for (i = 0; i < 23; i++)
#ifdef VT100
			lprcat(lgetl());	/* print out each line that
						 * we read in */
#else	/* VT100 */
		{
			tmcapcnv(tmbuf, lgetl());
			lprcat(tmbuf);
		}		/* intercept \33's */
#endif	/* VT100 */
		if (j > 1) {
			lprcat("    ---- Press ");
			standout("return");
			lprcat(" to exit, ");
			standout("space");
			lprcat(" for more help ---- ");
			i = 0;
			while ((i != ' ') && (i != '\n') && (i != '\33'))
				i = ttgetch();
			if ((i == '\n') || (i == '\33')) {
				lrclose();
				setscroll();
				drawscreen();
				return;
			}
		}
	}
	lrclose();
	retcont();
	drawscreen();
}

/*
 *	function to display the welcome message and background
 */
void
welcome(void)
{
	int    i;
#ifndef VT100
	char            tmbuf[128];	/* intermediate translation buffer
					 * when not a VT100 */
#endif	/* VT100 */
	if (openhelp() < 0)
		return;		/* open the help file */
	clear();
	for (i = 0; i < 23; i++)
#ifdef VT100
		lprcat(lgetl());/* print out each line that we read in */
#else	/* VT100 */
	{
		tmcapcnv(tmbuf, lgetl());
		lprcat(tmbuf);
	}			/* intercept \33's */
#endif	/* VT100 */
	lrclose();
	retcont();		/* press return to continue */
}

/*
 *	function to say press return to continue and reset scroll when done
 */
static void
retcont(void)
{
	cursor(1, 24);
	lprcat("Press ");
	standout("return");
	lprcat(" to continue: ");
	while (ttgetch() != '\n');
	setscroll();
}

/*
 *	routine to open the help file and return the first character - '0'
 */
static int
openhelp(void)
{
	if (lopen(helpfile) < 0) {
		lprintf("Can't open help file \"%s\" ", helpfile);
		lflush();
		sleep(4);
		drawscreen();
		setscroll();
		return (-1);
	}
	resetscroll();
	return (lgetc() - '0');
}