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📄 FREEBSD-upgrade(1.06 KB)
📄 INSTALL(7.71 KB)
📄 LICENSE(1.24 KB)
📄 NEWS(32.19 KB)
📄 README(10.86 KB)
📄 brac.c(2.18 KB)
📄 ch.c(18.37 KB)
📄 charset.c(17.3 KB)
📄 charset.h(717 B)
📄 cmd.h(4.42 KB)
📄 cmdbuf.c(32.21 KB)
📄 command.c(36.63 KB)
📄 compose.uni(10.17 KB)
📄 cvt.c(2.49 KB)
📄 decode.c(20.81 KB)
📄 edit.c(16.68 KB)
📄 filename.c(19.65 KB)
📄 fmt.uni(712 B)
📄 forwback.c(9.77 KB)
📄 funcs.h(17.56 KB)
📄 help.c(49.78 KB)
📄 ifile.c(7.39 KB)
📄 input.c(8.82 KB)
📄 jump.c(6.54 KB)
📄 less.h(12.74 KB)
📄 less.hlp(12.19 KB)
📄 less.nro(69.08 KB)
📄 lessecho.c(4.82 KB)
📄 lessecho.nro(1.5 KB)
📄 lesskey.c(17.99 KB)
📄 lesskey.h(813 B)
📄 lesskey.nro(9.15 KB)
📄 lglob.h(2.98 KB)
📄 line.c(28 KB)
📄 linenum.c(10.36 KB)
📄 lsystem.c(7.17 KB)
📄 main.c(8.07 KB)
📄 mark.c(8.28 KB)
📄 mkutable(2.75 KB)
📄 optfunc.c(13.61 KB)
📄 option.c(13.89 KB)
📄 option.h(2 KB)
📄 opttbl.c(17.14 KB)
📄 os.c(6.2 KB)
📄 output.c(13 KB)
📄 pattern.c(8.55 KB)
📄 pattern.h(1.54 KB)
📄 pckeys.h(898 B)
📄 position.c(5.13 KB)
📄 position.h(414 B)
📄 prompt.c(11.98 KB)
📄 regexp.c(27.74 KB)
📄 regexp.h(973 B)
📄 screen.c(53.03 KB)
📄 scrsize.c(3.06 KB)
📄 search.c(35.45 KB)
📄 signal.c(4.63 KB)
📄 tags.c(15.73 KB)
📄 ttyin.c(4.12 KB)
📄 ubin.uni(602 B)
📄 version.c(46.22 KB)
📄 wide.uni(3.52 KB)

Editing: brac.c

/*
 * Copyright (C) 1984-2020  Mark Nudelman
 *
 * You may distribute under the terms of either the GNU General Public
 * License or the Less License, as specified in the README file.
 *
 * For more information, see the README file.
 */

/*
 * Routines to perform bracket matching functions.
 */

#include "less.h"
#include "position.h"

/*
 * Try to match the n-th open bracket 
 *  which appears in the top displayed line (forwdir),
 * or the n-th close bracket 
 *  which appears in the bottom displayed line (!forwdir).
 * The characters which serve as "open bracket" and 
 * "close bracket" are given.
 */
	public void
match_brac(obrac, cbrac, forwdir, n)
	int obrac;
	int cbrac;
	int forwdir;
	int n;
{
	int c;
	int nest;
	POSITION pos;
	int (*chget)();

extern int ch_forw_get(), ch_back_get();

/*
	 * Seek to the line containing the open bracket.
	 * This is either the top or bottom line on the screen,
	 * depending on the type of bracket.
	 */
	pos = position((forwdir) ? TOP : BOTTOM);
	if (pos == NULL_POSITION || ch_seek(pos))
	{
		if (forwdir)
			error("Nothing in top line", NULL_PARG);
		else
			error("Nothing in bottom line", NULL_PARG);
		return;
	}

/*
	 * Look thru the line to find the open bracket to match.
	 */
	do
	{
		if ((c = ch_forw_get()) == '\n' || c == EOI)
		{
			if (forwdir)
				error("No bracket in top line", NULL_PARG);
			else
				error("No bracket in bottom line", NULL_PARG);
			return;
		}
	} while (c != obrac || --n > 0);

/*
	 * Position the file just "after" the open bracket
	 * (in the direction in which we will be searching).
	 * If searching forward, we are already after the bracket.
	 * If searching backward, skip back over the open bracket.
	 */
	if (!forwdir)
		(void) ch_back_get();

/*
	 * Search the file for the matching bracket.
	 */
	chget = (forwdir) ? ch_forw_get : ch_back_get;
	nest = 0;
	while ((c = (*chget)()) != EOI)
	{
		if (c == obrac)
			nest++;
		else if (c == cbrac && --nest < 0)
		{
			/*
			 * Found the matching bracket.
			 * If searching backward, put it on the top line.
			 * If searching forward, put it on the bottom line.
			 */
			jump_line_loc(ch_tell(), forwdir ? -1 : 1);
			return;
		}
	}
	error("No matching bracket", NULL_PARG);
}

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Editing: brac.c

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