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Revision 1.9, Fri May 27 09:18:11 2016 UTC (8 years ago) by martijn
Branch: MAIN
CVS Tags: OPENBSD_7_5_BASE, OPENBSD_7_5, OPENBSD_7_4_BASE, OPENBSD_7_4, OPENBSD_7_3_BASE, OPENBSD_7_3, OPENBSD_7_2_BASE, OPENBSD_7_2, OPENBSD_7_1_BASE, OPENBSD_7_1, OPENBSD_7_0_BASE, OPENBSD_7_0, OPENBSD_6_9_BASE, OPENBSD_6_9, OPENBSD_6_8_BASE, OPENBSD_6_8, OPENBSD_6_7_BASE, OPENBSD_6_7, OPENBSD_6_6_BASE, OPENBSD_6_6, OPENBSD_6_5_BASE, OPENBSD_6_5, OPENBSD_6_4_BASE, OPENBSD_6_4, OPENBSD_6_3_BASE, OPENBSD_6_3, OPENBSD_6_2_BASE, OPENBSD_6_2, OPENBSD_6_1_BASE, OPENBSD_6_1, OPENBSD_6_0_BASE, OPENBSD_6_0, HEAD
Changes since 1.8: +2 -2 lines 

Revert CHAR_T removal. Some signedness flaws were introduced.
Found the hard way by jca@

/*	$OpenBSD: cut.h,v 1.9 2016/05/27 09:18:11 martijn Exp $	*/

/*-
 * Copyright (c) 1991, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 * Copyright (c) 1991, 1993, 1994, 1995, 1996
 *	Keith Bostic.  All rights reserved.
 *
 * See the LICENSE file for redistribution information.
 *
 *	@(#)cut.h	10.5 (Berkeley) 4/3/96
 */

typedef struct _texth TEXTH;		/* TEXT list head structure. */
TAILQ_HEAD(_texth, _text);

/* Cut buffers. */
struct _cb {
	LIST_ENTRY(_cb) q;		/* Linked list of cut buffers. */
	TEXTH	 textq;			/* Linked list of TEXT structures. */
	CHAR_T	 name;			/* Cut buffer name. */
	size_t	 len;			/* Total length of cut text. */

#define	CB_LMODE	0x01		/* Cut was in line mode. */
	u_int8_t flags;
};

/* Lines/blocks of text. */
struct _text {				/* Text: a linked list of lines. */
	TAILQ_ENTRY(_text) q;		/* Linked list of text structures. */
	char	*lb;			/* Line buffer. */
	size_t	 lb_len;		/* Line buffer length. */
	size_t	 len;			/* Line length. */

	/* These fields are used by the vi text input routine. */
	recno_t	 lno;			/* 1-N: file line. */
	size_t	 cno;			/* 0-N: file character in line. */
	size_t	 ai;			/* 0-N: autoindent bytes. */
	size_t	 insert;		/* 0-N: bytes to insert (push). */
	size_t	 offset;		/* 0-N: initial, unerasable chars. */
	size_t	 owrite;		/* 0-N: chars to overwrite. */
	size_t	 R_erase;		/* 0-N: 'R' erase count. */
	size_t	 sv_cno;		/* 0-N: Saved line cursor. */
	size_t	 sv_len;		/* 0-N: Saved line length. */

	/*
	 * These fields returns information from the vi text input routine.
	 *
	 * The termination condition.  Note, this field is only valid if the
	 * text input routine returns success.
	 *	TERM_BS:	User backspaced over the prompt.
	 *	TERM_CEDIT:	User entered <edit-char>.
	 *	TERM_CR:	User entered <carriage-return>; no data.
	 *	TERM_ESC:	User entered <escape>; no data.
	 *	TERM_OK:	Data available.
	 *	TERM_SEARCH:	Incremental search.
	 */
	enum {
	    TERM_BS, TERM_CEDIT, TERM_CR, TERM_ESC, TERM_OK, TERM_SEARCH
	} term;
};

/*
 * Get named buffer 'name'.
 * Translate upper-case buffer names to lower-case buffer names.
 */
#define	CBNAME(sp, cbp, nch) {						\
	CHAR_T L__name;							\
	L__name = isupper(nch) ? tolower(nch) : (nch);			\
	LIST_FOREACH((cbp), &(sp)->gp->cutq, q)				\
		if ((cbp)->name == L__name)				\
			break;						\
}

/* Flags to the cut() routine. */
#define	CUT_LINEMODE	0x01		/* Cut in line mode. */
#define	CUT_NUMOPT	0x02		/* Numeric buffer: optional. */
#define	CUT_NUMREQ	0x04		/* Numeric buffer: required. */

/* Special length to cut_line(). */
#define CUT_LINE_TO_EOL	((size_t) -1)	/* Cut to the end of line. */