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    Length: 1178 (0x49a)
    Types: TextFile
    Names: »tabs.c«

└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki
    └─⟦526ad3590⟧ »EUUGD11/gnu-31mar87/X.V10.R4.tar.Z« 
        └─⟦2109abc41⟧ 
            └─⟦this⟧ »./X.V10R4/obsolete/xterm/tabs.c« 

TextFile

#include <X/mit-copyright.h>

/* Copyright    Massachusetts Institute of Technology    1984	*/

/* tabs.c */

#ifndef lint
static char *rcsid_tabs_c = "$Header: tabs.c,v 10.7 86/02/01 16:07:10 tony Rel $";
#endif	lint

#include <X/Xlib.h>
#include "ptyx.h"
/*
 * This file presumes 32bits/word.  This is somewhat of a crock, and should
 * be fixed sometime.
 */

/*
 * places tabstops at only every 8 columns
 */
TabReset(tabs)
Tabs	tabs;
{
	register int i;

	for (i=0; i<TAB_ARRAY_SIZE; ++i)
		tabs[i] = 0;

	for (i=0; i<MAX_TABS; i+=8)
		TabSet(tabs, i);
}	


/*
 * places a tabstop at col
 */
TabSet(tabs, col)
Tabs	tabs;
{
	tabs[col >> 5] |= (1 << (col & 31));
}

/*
 * clears a tabstop at col
 */
TabClear(tabs, col)
Tabs	tabs;
{
	tabs[col >> 5] &= ~(1 << (col & 31));
}

/*
 * returns the column of the next tabstop
 * (or MAX_TABS - 1 if there are no more).
 * A tabstop at col is ignored.
 */
TabNext (tabs, col)
Tabs	tabs;
{
	for (++col; col<MAX_TABS; ++col)
		if (tabs[col >> 5] & (1 << (col & 31)))
			return (col);

	return (MAX_TABS - 1);
}

/*
 * clears all tabs
 */
TabZonk (tabs)
Tabs	tabs;
{
	register int i;

	for (i=0; i<TAB_ARRAY_SIZE; ++i)
		tabs[i] = 0;
}