/*- * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)cut.h 8.1 (Berkeley) 6/9/93 */ typedef struct _cb { /* Cut buffer. */ struct _hdr txthdr; /* Linked list of TEXT structures. */ u_long len; /* Total length of cut text. */ #define CB_LMODE 0x01 /* Line mode. */ u_char flags; } CB; typedef struct _text { /* Text: a linked list of lines. */ struct _text *next, *prev; /* 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: line number. */ size_t ai; /* 0-N: autoindent bytes. */ size_t insert; /* 0-N: bytes to insert (push). */ size_t offset; /* 0-N: initial, unerasable bytes. */ size_t overwrite; /* 0-N: bytes to overwrite. */ /* These fields are used by the ex text input routine. */ u_char *wd; /* Width buffer. */ size_t wd_len; /* Width buffer length. */ } TEXT; #define OOBCB -1 /* Out-of-band cut buffer name. */ #define DEFCB UCHAR_MAX + 1 /* Default cut buffer. */ /* Vi: cut buffer to use. */ #define VICB(vp) ((vp)->buffer == OOBCB ? DEFCB : (vp)->buffer) /* Check to see if a cut buffer has contents. */ #define CBEMPTY(sp, buf, cb) { \ if ((cb)->txthdr.next == NULL || \ (cb)->txthdr.next == &(cb)->txthdr) { \ if (buf == DEFCB) \ msgq(sp, M_ERR, \ "The default buffer is empty."); \ else \ msgq(sp, M_ERR, \ "Buffer %s is empty.", charname(sp, buf)); \ return (1); \ } \ } /* * Check a buffer name for validity. * Translate upper-case buffer names to lower-case buffer names. */ #define CBNAME(sp, bname, cb) { \ if ((bname) > sizeof(sp->cuts) - 1) { \ msgq(sp, M_ERR, "Invalid cut buffer name."); \ return (1); \ } \ if (isupper(bname)) \ (bname) = tolower(bname); \ cb = &sp->cuts[bname]; \ } /* Cut routines. */ int cut __P((struct _scr *, struct _exf *, int, struct _mark *, struct _mark *, int)); int delete __P((struct _scr *, struct _exf *, struct _mark *, struct _mark *, int)); int put __P((struct _scr *, struct _exf *, int, struct _mark *, struct _mark *, int)); void text_free __P((TEXT *)); void hdr_text_free __P((struct _hdr *)); TEXT *text_init __P((struct _scr *, char *, size_t, size_t));