1 /* $NetBSD: v_yank.c,v 1.3 2014/01/26 21:43:45 christos Exp $ */ 2 /*- 3 * Copyright (c) 1992, 1993, 1994 4 * The Regents of the University of California. All rights reserved. 5 * Copyright (c) 1992, 1993, 1994, 1995, 1996 6 * Keith Bostic. All rights reserved. 7 * 8 * See the LICENSE file for redistribution information. 9 */ 10 11 #include "config.h" 12 13 #include <sys/cdefs.h> 14 #if 0 15 #ifndef lint 16 static const char sccsid[] = "Id: v_yank.c,v 10.10 2001/06/25 15:19:36 skimo Exp (Berkeley) Date: 2001/06/25 15:19:36 "; 17 #endif /* not lint */ 18 #else 19 __RCSID("$NetBSD: v_yank.c,v 1.3 2014/01/26 21:43:45 christos Exp $"); 20 #endif 21 22 #include <sys/types.h> 23 #include <sys/queue.h> 24 #include <sys/time.h> 25 26 #include <bitstring.h> 27 #include <limits.h> 28 #include <stdio.h> 29 30 #include "../common/common.h" 31 #include "vi.h" 32 33 /* 34 * v_yank -- [buffer][count]y[count][motion] 35 * [buffer][count]Y 36 * Yank text (or lines of text) into a cut buffer. 37 * 38 * !!! 39 * Historic vi moved the cursor to the from MARK if it was before the current 40 * cursor and on a different line, e.g., "yk" moves the cursor but "yj" and 41 * "yl" do not. Unfortunately, it's too late to change this now. Matching 42 * the historic semantics isn't easy. The line number was always changed and 43 * column movement was usually relative. However, "y'a" moved the cursor to 44 * the first non-blank of the line marked by a, while "y`a" moved the cursor 45 * to the line and column marked by a. Hopefully, the motion component code 46 * got it right... Unlike delete, we make no adjustments here. 47 * 48 * PUBLIC: int v_yank __P((SCR *, VICMD *)); 49 */ 50 int 51 v_yank(SCR *sp, VICMD *vp) 52 { 53 size_t len; 54 55 if (cut(sp, 56 F_ISSET(vp, VC_BUFFER) ? &vp->buffer : NULL, &vp->m_start, 57 &vp->m_stop, F_ISSET(vp, VM_LMODE) ? CUT_LINEMODE : 0)) 58 return (1); 59 sp->rptlines[L_YANKED] += (vp->m_stop.lno - vp->m_start.lno) + 1; 60 61 /* 62 * One special correction, in case we've deleted the current line or 63 * character. We check it here instead of checking in every command 64 * that can be a motion component. 65 */ 66 if (db_get(sp, vp->m_final.lno, DBG_FATAL, NULL, &len)) 67 return (1); 68 69 /* 70 * !!! 71 * Cursor movements, other than those caused by a line mode command 72 * moving to another line, historically reset the relative position. 73 * 74 * This currently matches the check made in v_delete(), I'm hoping 75 * that they should be consistent... 76 */ 77 if (!F_ISSET(vp, VM_LMODE)) { 78 F_CLR(vp, VM_RCM_MASK); 79 F_SET(vp, VM_RCM_SET); 80 81 /* Make sure the set cursor position exists. */ 82 if (vp->m_final.cno >= len) 83 vp->m_final.cno = len ? len - 1 : 0; 84 } 85 return (0); 86 } 87